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We have obtained an exceptionally high S/N, high resolution spectrum of the gravitationally lensed quasar Q1422+231 in order to investigate the metal enrichment of the IGM. A column density distribution function (CDDF) is determined for CIV, which is well fit by a power law with index 1.44 +/- 0.05. Once a correction f... | 我们获得了引力透镜类星体Q1422+231的极高信噪比、高分辨率光谱，以研究星系际介质（IGM）的金属丰度。我们确定了CIV的柱密度分布函数（CDDF），其可由指数为1.44 ± 0.05的幂律函数很好地拟合。在对不完备性进行校正后，我们发现CDDF在log N(CIV) = 11.75处仍符合幂律分布，比此前确定的灵敏度高十倍。为了确定CIV丰度是否延伸至更低柱密度的HI云中，我们发现对单个像素光学深度的分析比叠加技术更为稳健。我们将该光学深度方法所得结果与采用不同CIV丰度模型的模拟光谱分析结果进行了比较。根据这些模拟，我们得出结论：要重现从数据中确定的光学深度，所需CIV含量超过了目前在Q1422+231中直接探测到的量，这与... | zh |
Measurement-based quantum computation is a framework of quantum computation, where entanglement is used as a resource and local measurements on qubits are used to drive the computation. It originates from the one-way quantum computer of Raussendorf and Briegel, who introduced the so-called cluster state as the underlyi... | পরিমাপ-ভিত্তিক কোয়ান্টাম কম্পিউটেশন কোয়ান্টাম কম্পিউটেশনের একটি কাঠামো, যেখানে জটিলতা (entanglement) একটি সম্পদ হিসাবে ব্যবহৃত হয় এবং কিউবিটগুলির স্থানীয় পরিমাপগুলি কম্পিউটেশন চালানোর জন্য ব্যবহৃত হয়। এটি রাউসেনডরফ ও ব্রিগেলের এক-পথ কোয়ান্টাম কম্পিউটার থেকে উৎপন্ন হয়েছে, যারা জটিল সম্পদ অবস্থার ভিত্তি হিসাবে একট... | bn |
Relativistic shocks are one of the most plausible sites of the emission of strongly variable, polarized multi-wavelength emission from relativistic jet sources such as blazars, via diffusive shock acceleration (DSA) of relativistic particles. This paper summarizes recent results on a self-consistent coupling of diffusi... | နှိမ့်ချခံရသော ရိုက်ခတ်မှုများသည် ဘလေဇာများကဲ့သို့သော နှိမ့်ချခံရသည့် ဂျက်အရင်းအမြစ်များမှ ပြင်းထန်စွာ ပြောင်းလဲသည့်၊ သံလိုက်ဝန်းရံမှုရှိသော အလင်းရောင်မျိုးစုံ ထုတ်လွှတ်မှုကို နှိမ့်ချခံရသော အမှုန်များ၏ ပျံ့နှံ့သော ရိုက်ခတ်မှု တိုးမြှင့်မှု (DSA) ကနေတစ်ဆင့် ထုတ်လွှတ်သည့် နေရာများအနက် တစ်ခုအဖြစ် အလားအလာရှိသည်။ ဤစာတမ်းသည... | my |
We present a comprehensive spectroscopic imaging survey of the distribution and kinematics of atomic hydrogen (HI) in 16 nearby spiral galaxies hosting low luminosity AGN, observed with high spectral and spatial resolution (resolution: ~20 arcsec, 5 km/s) using the NRAO Very Large Array (VLA). The sample contains a ran... | Біз НАРҚ-ның Үлкен Массивын (VLA) қолданып (бұрыштық шешімділік: ~20 арксек, жылдамдық шешімділігі: 5 км/с), жарықтылығы төмен АЯЯ-ның 16 жақын орналасқан спиральді галактикаларындағы атомдық сутегінің (HI) таралуы мен кинематикасын кеңінен қамтитын спектрлік бейне алу зерттеуін ұсынамыз. Таңдама Сейферт ядросынан баст... | kk |
Scientific research is a continuous process, and the speed of future progress can be estimated by the pace of finding explanations for previous research questions. In this observers based view of stellar pulsation and asteroseismology, we start with the earliest observations of variable stars and the techniques used to... | 과학 연구는 지속적인 과정이며, 향후 진전 속도는 이전 연구 질문들에 대한 설명을 찾는 속도로 추정할 수 있다. 항성 맥동과 항성진동학에 대한 관측자 중심의 관점에서 우리는 변광성에 대한 최초의 관측과 이를 관측하기 위해 사용된 기술들로부터 시작한다. 최초의 변광성들은 진폭이 큰 방사형 맥동 별들이었으나, 이후 다른 종류의 맥동성들이 계속 발견되었다. 이 분야가 성숙함에 따라 우리는 관측 기술의 변화에 초점을 맞추어 맥동성 연구의 몇 가지 주요 이정표들을 개관한다. 사진 촬영에서 광도 측정, CCD, 그리고 우주 망원경으로의 발전을 통해 연구자들은 광도 변화를 보이는... | ko |
We propose to develop a high-energy heavy-ion experimental database and make it accessible to the scientific community through an on-line interace. This database will be searchable and cross-indexed with relevant publications, including published detector descriptions. Since this database will be a community resource, ... | نقترح تطوير قاعدة بيانات تجريبية للإيونات الثقيلة ذات الطاقة العالية وجعلها متاحة للمجتمع العلمي من خلال واجهة إلكترونية. ستكون هذه القاعدة قابلة للبحث ومرتبطة بشكل متقاطع بالمنشورات ذات الصلة، بما في ذلك وصفات الكاشفة المنشورة. وبما أن هذه القاعدة تمثل مورداً مجتمعياً، فإنها تتطلب دعماً مالياً وبدنياً من مجتمع فيزياء ... | ar |
We combine the catalogs of compact high-velocity HI clouds extracted from the LDS and HIPASS surveys and analyze the all-sky properties of the ensemble. Five principal observables are defined for the CHVC population: (1) the spatial deployment of the objects on the sky, (2) the kinematic distribution, (3) the number di... | 我们将从LDS和HIPASS巡天中提取的致密高速中性氢云（CHVC）星表进行合并，并分析该整体样本的全天特性。我们为CHVC总体定义了五个主要可观测量：（1）天体在天空中的空间分布，（2）运动学分布，（3）观测到的中性氢柱密度的数目分布，（4）角尺寸的数目分布，以及（5）中性氢谱线宽度的数目分布。我们考虑了两类模型以重现观测特性。通过以与观测灵敏度一致的方式从模拟中提取相同的可观测量，并明确考虑银河系遮挡效应，来评估模型与数据的符合程度。我们发现，若将CHVC视为在本星系群引力势中演化的暗物质晕的中性氢对应体，则此类模型能很好地匹配所有可观测量。最符合的总体具有约10^7倍太阳质量的最大中性氢质量，中性氢质量分布的幂律指数在-1.7... | zh |
A recent publication provides the network graph for a neocortical microcircuit comprising 8 million connections between 31,000 neurons (H. Markram, et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015) no. 2, 456-492). Since traditional graph-theoretical methods may not be sufficient to ... | Una publicación reciente proporciona el grafo de red para un microcircuito neocortical que comprende 8 millones de conexiones entre 31.000 neuronas (H. Markram et al., Reconstrucción y simulación de la microcircuitría neocortical, Cell, 163 (2015) n.º 2, 456-492). Dado que los métodos tradicionales de teoría de grafos ... | es |
We present an analysis of the optical spectroscopy of 58 stars in the Galactic plane at $l=27$\arcdeg, where a prominent excess in the flux distribution and star counts have been observed in several spectral regions, in particular in the Two Micron Galactic Survey (TMGS) catalog. The sources were selected from the TMGS... | আমরা আকাশগঙ্গার তলের $l=27$\arcdeg অবস্থানে 58টি তারার আলোক বর্ণালীবিদ্যার একটি বিশ্লেষণ উপস্থাপন করছি, যেখানে বিভিন্ন আলোক বর্ণালী অঞ্চলে, বিশেষ করে টু মাইক্রন গ্যালাকটিক সার্ভে (TMGS) ক্যাটালগে, ফ্লাক্স বন্টন এবং তারা গণনায় একটি সুস্পষ্ট অতিরিক্ততা লক্ষ্য করা গেছে। TMGS থেকে উৎসগুলি নির্বাচন করা হয়েছিল যাদের $K$ মা... | bn |
Scientific research is a continuous process, and the speed of future progress can be estimated by the pace of finding explanations for previous research questions. In this observers based view of stellar pulsation and asteroseismology, we start with the earliest observations of variable stars and the techniques used to... | Penelitian ilmiah merupakan proses yang berkelanjutan, dan kecepatan kemajuan di masa depan dapat diperkirakan dari laju penemuan penjelasan atas pertanyaan penelitian sebelumnya. Dalam pandangan berbasis pengamat terhadap getaran bintang dan asteroseismologi ini, kami memulai dengan pengamatan paling awal terhadap bin... | id |
A critical discussion of the present status of the CERN experiments on charm dynamics and hadron collective flow is given. We emphasize the importance of the flow excitation function from 1 to 50 A$\cdot$GeV: here the hydrodynamic model has predicted the collapse of the $v_1$-flow and of the $v_2$-flow at $\sim 10$ A$\... | Uma discussão crítica sobre o estado atual dos experimentos do CERN sobre a dinâmica do charme e o fluxo coletivo de hádrons é apresentada. Enfatizamos a importância da função de excitação do fluxo entre 1 e 50 A$\cdot$GeV: aqui, o modelo hidrodinâmico previu o colapso do fluxo $v_1$ e do fluxo $v_2$ em $\sim 10$ A$\cd... | pt |
The recently-discovered stellar system in Canis Major is analysed using He-burning Red Clump stars as tracers. Canis Major turns out to be the strongest and most spatially confined overdensity of the whole Galactic Disc, both in terms of number density and of statistical significance. When projected onto the Galactic P... | ລະບົບດາວທີ່ຖືກຄົ້ນພົບໃໝ່ໃນກຸ່ມດາວ Canis Major ໄດ້ຖືກວິເຄາະໂດຍໃຊ້ດາວ Red Clump ທີ່ເຜົາໄໝ້ຮັງສີ He ເປັນຕົວຕິດຕາມ. Canis Major ພົບວ່າເປັນບັນດາພື້ນທີ່ທີ່ມີຄວາມໜາແໜ້ນເກີນໄປ (overdensity) ທີ່ເຂັ້ມແຂງທີ່ສຸດ ແລະ ມີຂອບເຂດໃນອະວະກາດທີ່ຊັດເຈນທີ່ສຸດໃນທຸກພື້ນທີ່ຈານຂອງກາແລັກຊີ ທັງໃນດ້ານຄວາມໜາແໜ້ນຂອງຈຳນວນ ແລະ ຄວາມໝາຍທາງສະຖິຕິ. ເມື່ອຖື... | lo |
Source code (Context) and its parsed abstract syntax tree (AST; Structure) are two complementary representations of the same computer program. Traditionally, designers of machine learning models have relied predominantly either on Structure or Context. We propose a new model, which jointly learns on Context and Structu... | លេខកូដប្រភព (បរិបទ) និងដើមឈើវាក្យសម្បទាដែលបានវិភាគ (AST; រចនាសម្ព័ន្ធ) គឺជាការតំណាងពីរប្រភេទបំពេញបន្ថែមគ្នាសម្រាប់កម្មវិធីកុំព្យូទ័រតែមួយ។ ប្រពៃណីមក អ្នករចនាម៉ូដែលរៀនសូត្រពីម៉ាស៊ីន បានពឹងផ្អែកជាចម្បងលើរចនាសម្ព័ន្ធ ឬបរិបទ។ យើងស្នើម៉ូដែលថ្មីមួយ ដែលរៀនរួមគ្នាលើបរិបទ និងរចនាសម្ព័ន្ធនៃលេខកូដប្រភព។ ផ្ទុយពីវិធីសាស្ត្រមុនៗ ម៉ូ... | km |
A recent publication provides the network graph for a neocortical microcircuit comprising 8 million connections between 31,000 neurons (H. Markram, et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015) no. 2, 456-492). Since traditional graph-theoretical methods may not be sufficient to ... | Una pubblicazione recente fornisce il grafo di rete per un microcircuito neocorticale composto da 8 milioni di connessioni tra 31.000 neuroni (H. Markram et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015) n. 2, 456-492). Poiché i metodi tradizionali della teoria dei grafi potrebbero n... | it |
The cosmic microwave background (CMB) temperature anisotropies exhibit a large-scale dipolar power asymmetry. To determine whether this is due to a real, physical modulation or is simply a large statistical fluctuation requires the measurement of new modes. Here we forecast how well CMB polarization data from \Planck\ ... | Le anisotropie di temperatura della radiazione cosmica di fondo (CMB) mostrano un'asimmetria dipolare su larga scala nella potenza. Per determinare se ciò sia dovuto a una modulazione fisica reale o semplicemente a una grande fluttuazione statistica, è necessario misurare nuove modalità. In questo lavoro prevediamo con... | it |
We report multifrequency Very Long Baseline Array observations of twelve active galactic nuclei seen toward the Galactic anticenter. All of the sources are at |b| < 10 degrees and seven have |b| < 0.5 degrees. Our VLBA observations can detect an enhancement in the angular broadening of these sources due to an extended ... | 은하 반대쪽 중심 방향으로 관측된 12개의 활동은하핵에 대한 다중주파수 초장기선 배열(Very Long Baseline Array, VLBA) 관측 결과를 보고한다. 모든 천체는 |b| < 10도에 위치하며, 7개는 |b| < 0.5도에 있다. 외부 은하에서 H II 성운 원반의 방향이 H I 성운 원반의 방향과 유사하다면, 우리의 VLBA 관측은 이러한 천체들의 각도 확장이 확장된 H II 원반으로 인해 증가하는 현상을 감지할 수 있다. 이러한 확장된 H II 원반의 존재는 준성계(quasar) 스펙트럼에서 나타나는 C IV 흡수, 인근 나선은하들의 H I 원반 형... | ko |
Fast Radio Bursts (FRBs) are bright enigmatic radio pulses of roughly millisecond duration that come from extragalactic distances. As part of the MeerTRAP project, we use the MeerKAT telescope array in South Africa to search for and localise those bursts to high precision in real-time. We aim to pinpoint FRBs to their ... | Rajadas Rápidas de Rádio (FRBs) são pulsos de rádio brilhantes e enigmáticos com duração de aproximadamente um milissegundo que vêm de distâncias extragalácticas. Como parte do projeto MeerTRAP, utilizamos a matriz de telescópios MeerKAT na África do Sul para buscar e localizar essas rajadas com alta precisão em tempo ... | pt |
We derive mass functions (MF) for halo red dwarfs (the faintest hydrogen burning stars) and then extrapolate to place limits on the total mass of halo brown dwarfs (stars not quite massive enough to burn hydrogen). The mass functions are obtained from the luminosity function of a sample of 114 local halo stars in the U... | 우리는 헤일로 붉은 왜성(가장 희미한 수소 연소 별)에 대한 질량 함수(MF)를 도출한 후, 이를 외삽하여 헤일로 갈색 왜성(수소 연소에 충분한 질량이 부족한 별)의 총 질량에 대한 한계를 설정한다. 질량 함수는 USNO 시차 조사(Dahn \etal 1995)에서 얻은 국부 헤일로 별 114개로 구성된 표본의 광도 함수로부터 구하였다. 우리는 Alexander \etal(1996)의 항성 모델을 사용하며, 표본의 금속량 및 미해결 이중성계의 존재 가능성에 대해 다양한 가정을 두었다. 그 결과, 수소 연소 한계에 접근할수록 헤일로 붉은 왜성의 질량 함수는 $1/m^2... | ko |
A critical discussion of the present status of the CERN experiments on charm dynamics and hadron collective flow is given. We emphasize the importance of the flow excitation function from 1 to 50 A$\cdot$GeV: here the hydrodynamic model has predicted the collapse of the $v_1$-flow and of the $v_2$-flow at $\sim 10$ A$\... | Một thảo luận nghiêm ngặt về tình trạng hiện tại của các thí nghiệm tại CERN về động lực học hạt lạ (charm) và dòng chảy tập thể của hadron được trình bày. Chúng tôi nhấn mạnh tầm quan trọng của hàm kích thích dòng chảy trong khoảng từ 1 đến 50 A$\cdot$GeV: tại đây, mô hình thủy động lực học đã dự đoán sự sụp đổ của dò... | vi |
Large amounts of labeled training data are one of the main contributors to the great success that deep models have achieved in the past. Label acquisition for tasks other than benchmarks can pose a challenge due to requirements of both funding and expertise. By selecting unlabeled examples that are promising in terms o... | 大量のラベル付き訓練データは、深層モデルが過去に大きな成功を収めた主な要因の一つである。ベンチマーク以外のタスクにおいては、資金と専門知識の両方を必要とするため、ラベルの取得は困難となる場合がある。ラベル付けされていない事例のうち、モデルの改善という観点から有望なもののみを選択し、そのラベルだけを取得することで、アクティブラーニングはラベル付けプロセスの時間的・コスト的な効率を高めることができる。本研究では、増分学習方式とアクティブラーニング手法を組み合わせた方法について述べる。これにより、新たに観測されたラベルなしデータを継続的に探索することが可能になる。モデルの不確実性および予想されるモデル出力の変化（EMOC）に基づく選択基準... | ja |
Nowadays, the use of agile software development methods like Scrum is common in industry and academia. Considering the current attacking landscape, it is clear that developing secure software should be a main concern in all software development projects. In traditional software projects, security issues require detaile... | Hoy en día, el uso de métodos ágiles de desarrollo de software como Scrum es común en la industria y en el ámbito académico. Considerando el panorama actual de ataques, es evidente que desarrollar software seguro debería ser una preocupación principal en todos los proyectos de desarrollo de software. En proyectos de so... | es |
With the aim of better understanding the class of 4D theories generated by compactifications of 6D superconformal field theories (SCFTs), we study the structure of N = 1 supersymmetric punctures for class S_Gamma theories, namely the 6D SCFTs obtained from M5-branes probing an ADE singularity. For M5-branes probing a C... | 6次元超共形場理論（SCFT）のコンパクト化によって生成される4次元理論のクラスをより深く理解することを目的として、我々はクラスS_Gamma理論、すなわちM5ブレーンがADE特異点をプローブすることによって得られる6次元SCFTに対して、N = 1超対称性を持つパンクチャの構造を研究する。M5ブレーンがC^2 / Z_k特異点をプローブする場合、パンクチャは時間発展がアフィンA型キラーモデルの隣接ノードへの移動に対応する力学系によって支配される。パンクチャの分類は、周期軌道を生じる一貫した初期条件を決定することに帰着する。この系の研究は、単一のM5ブレーンの場合に特に扱いやすい。この「単純な」場合でさえ、解は顕著な複雑さを示す。初... | ja |
The Gemini Deep Deep Survey, GDDS, produced several significant results relating to the evolution of galaxies. All of these results are consistent with the "downsizing" concept of galaxy formation and evolution, i.e., that the active periods of star formation moved progressively from very massive galaxies at high redsh... | Gemini Derin Derin Taraması (GDDS), galaksilerin evrimiyle ilgili birkaç önemli sonuç ortaya koymuştur. Bu sonuçların tümü galaksi oluşumu ve evriminin "küçülme" (downsizing) kavramıyla uyumludur; yani yıldız oluşumunun aktif dönemleri, yüksek kırmızıya kaymanın olduğu zamanlarda çok kütleli galaksilerde başlayıp, zama... | tr |
The advantages of adaptivity and feedback are of immense interest in signal processing and communication with many positive and negative results. Although it is established that adaptivity does not offer substantial reductions in minimax mean square error for a fixed number of measurements, existing results have shown ... | Keunggulan adaptivitas dan umpan balik sangat menarik dalam pemrosesan sinyal dan komunikasi, dengan berbagai hasil positif dan negatif. Meskipun telah ditunjukkan bahwa adaptivitas tidak memberikan pengurangan substansial terhadap kesalahan kuadrat rata-rata minimaks untuk jumlah pengukuran yang tetap, hasil-hasil yan... | id |
In this paper, we investigate a distributed optimal control problem for a convective viscous Cahn-Hilliard system with dynamic boundary conditions. Such systems govern phase separation processes between two phases taking place in an incompressible fluid in a container and, at the same time, on the container boundary. T... | اس تحقیقی مقالے میں، ہم دینامی سرحدی شرائط کے ساتھ ایک کنویکٹو وِسکس کاہن ہلیارڈ نظام کے لیے تقسیم شدہ مثالی کنٹرول کے مسئلے کا جائزہ لیتے ہیں۔ اس قسم کے نظام ایک بے ترتیب سیال میں ایک برتن کے اندر دو مراحل کے درمیان مرحلہ علیحدگی کے عمل کو حکمرانی کرتے ہیں، اور اسی وقت برتن کی سرحد پر بھی۔ قیمتی فنکشنل معیاری ٹریکنگ ق... | ur |
A recent publication provides the network graph for a neocortical microcircuit comprising 8 million connections between 31,000 neurons (H. Markram, et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015) no. 2, 456-492). Since traditional graph-theoretical methods may not be sufficient to ... | 最近の出版物により、3万1000個のニューロン間の800万の接続からなる新皮質マイクロサーキットのネットワークグラフが提供された（H. マークランら、「新皮質マイクロサーキットの再構成とシミュレーション」、Cell、163巻（2015年）、2号、456–492頁）。このような生物ネットワークの極めて複雑な構造を理解するには、従来のグラフ理論的手法では不十分である可能性があるため、代数的トポロジーの手法がその構造的・機能的組織について新たな視点を提供できるかどうかを検討した。構造的トポロジー解析により、マイクロサーキット内のニューロン間の接続関係を表す有向グラフは、さまざまな種類のランダム化グラフと有意に逸脱していることが明らかになっ... | ja |
In this work we present the main atmospheric parameters, carbon, nitrogen and oxygen abundances, and 12C/13C ratios determined in a sample of 28 Galactic clump stars. Abundances of carbon were studied using the C2 band at 5086.2 {\AA}. The wavelength interval 7980-8130 {\AA} with strong CN features was analysed in orde... | Dalam karya ini kami menyajikan parameter atmosfer utama, kelimpahan karbon, nitrogen, dan oksigen, serta rasio 12C/13C yang ditentukan dalam sampel 28 bintang raksasa klaster galaksi. Kelimpahan karbon dipelajari menggunakan pita C2 pada 5086,2 {\AA}. Interval panjang gelombang 7980-8130 {\AA} yang memiliki ciri-ciri ... | id |
The current early stage in the investigation of the stability of the Kerr metric is characterized by the study of appropriate model problems. Particularly interesting is the problem of the stability of the solutions of the Klein-Gordon equation, describing the propagation of a scalar field in the background of a rotati... | কার মেট্রিকের স্থিতিশীলতা নির্ণয়ের তদন্তের বর্তমান প্রাথমিক পর্যায়টি উপযুক্ত মডেল সমস্যাগুলির অধ্যয়নের মাধ্যমে চিহ্নিত করা হয়েছে। বিশেষভাবে আকর্ষণীয় হল ক্লাইন-গর্ডন সমীকরণের সমাধানগুলির স্থিতিশীলতার সমস্যা, যা একটি ঘূর্ণায়মান (কার-) ব্ল্যাক হোলের পটভূমিতে একটি স্কেলার ক্ষেত্রের প্রসারণ বর্ণনা করে। ফলাফলগুলি নির্দ... | bn |
A critical discussion of the present status of the CERN experiments on charm dynamics and hadron collective flow is given. We emphasize the importance of the flow excitation function from 1 to 50 A$\cdot$GeV: here the hydrodynamic model has predicted the collapse of the $v_1$-flow and of the $v_2$-flow at $\sim 10$ A$\... | CERN의 캐릭터 동역학 및 하드론 집단 흐름 실험 현황에 대한 비판적 논의를 제시한다. 우리는 1~50 A·GeV 범위에서의 흐름 여기 함수의 중요성을 강조한다. 이 범위에서 수역학적 모델은 약 10 A·GeV에서 $v_1$-흐름과 $v_2$-흐름의 붕괴를 예측하였으며, 실제로 NA49 협력단에 의해 40 A·GeV에서 최근 관측되었다. 하드론 재산란 모델은 이 에너지 영역에서 관측된 것보다 훨씬 큰 흐름을 예측하기 때문에, 우리는 이 관측 결과를 고바리온 밀도 $\rho_B$에서 1차 상전이의 잠재적 증거로 해석한다. 이어서 RHIC에서 생성되는 고온 밀도 물질의... | ko |
The GEM project is designed for the next generation 2 beta decay experiments with 76-Ge. One ton of ''naked'' HP Ge detectors (natural at the first GEM-I phase and enriched in 76-Ge to 86% at the second GEM-II stage) are operating in super-high purity liquid nitrogen contained in the Cu vacuum cryostat (sphere with dia... | GEM жобасы 76-Ge изотопы үшін келесі ұрпақ 2 бета ыдырау тәжірибелеріне арналған. Бір тонналық «ашық» HP Ge детекторлары (бірінші GEM-I кезеңінде табиғи және екінші GEM-II кезеңінде 76-Ge-ге 86%-ға дейін байытылған) мыс вакуумдық криостатта (диаметрі 5 м болатын сфера) орналасқан супер таза сұйық азотта жұмыс істейді. ... | kk |
In echocardiography (echo), an electrocardiogram (ECG) is conventionally used to temporally align different cardiac views for assessing critical measurements. However, in emergencies or point-of-care situations, acquiring an ECG is often not an option, hence motivating the need for alternative temporal synchronization ... | Эхокардиографияда (эхо) әдетте әртүрлі жүрек көріністерін өлшемдерді бағалау үшін уақыт бойынша біріктіру үшін электрокардиограмма (ЭКГ) қолданылады. Алайда, авариялық жағдайларда немесе медициналық көмектің нүктесіндегі жағдайларда ЭКГ алу мүмкін болмай қалады, сондықтан альтернативті уақыттық синхрондау әдістерінің қ... | kk |
We present ALMA and ACA [CI]$^{3}P_{1}-^{3}P_{0}$ ([CI](1-0)) observations of NGC6240, which we combine with ALMA CO(2-1) and IRAM PdBI CO(1-0) data to study the physical properties of the massive molecular (H$_2$) outflow. We discover that the receding and approaching sides of the H$_2$ outflow, aligned east-west, exc... | Nous présentons des observations d'ALMA et de l'ACA de la raie [CI]$^{3}P_{1}-^{3}P_{0}$ ([CI](1-0)) de NGC6240, que nous combinons avec des données ALMA de la raie CO(2-1) et des données IRAM PdBI de la raie CO(1-0) afin d'étudier les propriétés physiques de l'important flux de sortie moléculaire (H$_2$). Nous découvr... | fr |
We develop a robust coarse-grained model for single and double stranded DNA by representing each nucleotide by three interaction sites (TIS) located at the centers of mass of sugar, phosphate, and base. The resulting TIS model includes base-stacking, hydrogen bond, and electrostatic interactions as well as bond-stretch... | Мы разработали надежную модель крупнозернистого описания одноцепочечной и двуцепочечной ДНК, представляя каждый нуклеотид тремя точками взаимодействия (TIS), расположенными в центрах масс сахара, фосфата и основания. Полученная модель TIS включает взаимодействия, обусловленные стэкингом оснований, водородными связями и... | ru |
Fast Radio Bursts (FRBs) are bright enigmatic radio pulses of roughly millisecond duration that come from extragalactic distances. As part of the MeerTRAP project, we use the MeerKAT telescope array in South Africa to search for and localise those bursts to high precision in real-time. We aim to pinpoint FRBs to their ... | Schnelle Radioblitze (FRBs) sind helle, rätselhafte Radiopulse mit einer Dauer von etwa einer Millisekunde, die aus extragalaktischen Entfernungen stammen. Im Rahmen des MeerTRAP-Projekts nutzen wir das Teleskop-Array MeerKAT in Südafrika, um diese Pulse in Echtzeit zu suchen und mit hoher Präzision zu lokalisieren. Un... | de |
As the fast growth and large integration of distributed generation, renewable energy resource, energy storage system and load response, the modern power system operation becomes much more complicated with increasing uncertainties and frequent changes. Increased operation risks are introduced to the existing commercial ... | تقسیم شدہ تولید، قابل تجدید توانائی کے وسائل، توانائی ذخیرہ کرنے کے نظام اور لوڈ ری ایکشن کی تیز رفتار ترقی اور بڑے پیمانے پر ادراج کے ساتھ جدید بجلی کے نظام کا آپریشن غیر یقینی صورتحال اور بار بار تبدیلیوں کی بنا پر کافی حد تک پیچیدہ ہو چکا ہے۔ موجودہ تجارتی توانائی انتظامی نظام (EMS) کی محدود معلوماتی صلاحیت کی وجہ س... | ur |
A critical discussion of the present status of the CERN experiments on charm dynamics and hadron collective flow is given. We emphasize the importance of the flow excitation function from 1 to 50 A$\cdot$GeV: here the hydrodynamic model has predicted the collapse of the $v_1$-flow and of the $v_2$-flow at $\sim 10$ A$\... | Şu anda CERN'de yapılan charmon dinamikleri ve hadron kolektif akışı deneylerinin durumu eleştirel bir şekilde tartışılıyor. 1 ile 50 A$\cdot$GeV arasındaki akış uyarım fonksiyonunun önemine vurgu yapılıyor: hidrodinamik model, $v_1$-akışının ve $v_2$-akışının yaklaşık 10 A$\cdot$GeV'de çökmesini öngörmüştü; bu çökme y... | tr |
A recent publication provides the network graph for a neocortical microcircuit comprising 8 million connections between 31,000 neurons (H. Markram, et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015) no. 2, 456-492). Since traditional graph-theoretical methods may not be sufficient to ... | Sebuah publikasi terbaru menyajikan grafik jaringan untuk mikrosirkuit neokortikal yang terdiri dari 8 juta koneksi antara 31.000 neuron (H. Markram, dkk., Rekonstruksi dan simulasi mikrosirkuit neokortikal, Cell, 163 (2015) no. 2, 456-492). Karena metode teori grafik tradisional mungkin tidak cukup untuk memahami komp... | id |
One of the major targets for next-generation cosmic microwave background (CMB) experiments is the detection of the primordial B-mode signal. Planning is under way for Stage-IV experiments that are projected to have instrumental noise small enough to make lensing and foregrounds the dominant source of uncertainty for es... | পরবর্তী প্রজন্মের মহাজাগতিক মাইক্রোতরঙ্গ পটভূমি (সিএমবি) পরীক্ষাগুলির মধ্যে একটি প্রধান লক্ষ্য হল প্রাথমিক বি-মোড সংকেতের সনাক্তকরণ। চতুর্থ পর্যায়ের পরীক্ষার জন্য পরিকল্পনা চলছে যা এমন যন্ত্রের শব্দ থাকার কথা যা যথেষ্ট ক্ষুদ্র হবে, যাতে বহুমুখীকরণ এবং পূর্বভাগীয় উপাদানগুলিকে টেন্সর-টু-স্কেলার অনুপাত $r$ অনুমানের জন্য... | bn |
An interpretable system for open-domain reasoning needs to express its reasoning process in a transparent form. Natural language is an attractive representation for this purpose -- it is both highly expressive and easy for humans to understand. However, manipulating natural language statements in logically consistent w... | کھلے شعبے کے استدلال کے لیے ایک تشریح کی جا سکنے والی نظام کو اپنے استدلال کے عمل کو شفاف شکل میں ظاہر کرنے کی ضرورت ہوتی ہے۔ اس مقصد کے لیے قدرتی زبان ایک پرکشش نمائندگی ہے -- یہ نہ صرف انتہائی اظہاری ہوتی ہے بلکہ انسانوں کے لیے سمجھنا بھی آسان ہوتی ہے۔ تاہم، قدرتی زبان کے بیانات کو منطقی طور پر مسلّط انداز میں استعما... | ur |
New algorithms for efficient decoding of polar codes (which may be CRC-augmented), transmitted over either a binary erasure channel (BEC) or an additive white Gaussian noise channel (AWGNC), are presented. We start by presenting a new efficient exact maximum likelihood decoding algorithm for the BEC based on inactivati... | ပေါလာကုဒ်များ (CRC ဖြင့် တိုးချဲ့ထားနိုင်သည်) ကို ဒွိဖျက်သိမ်းရေးချိန် (BEC) သို့မဟုတ် ထည့်သွင်းအသုံးပြုသည့် အဖြူရောင်ဂေါ့စီယန်း အသံဆူညံမှု ချိန် (AWGNC) တို့ပေါ်တွင် ထုတ်လွှတ်သည့်အခါ ထိရောက်စွာ ဒီကုဒ်ဖြေရန် အတွက် အယ်လ်ဂိုရီသမ်များကို တင်ပြသည်။ အင်အားကောင်းသော မဟုတ်ပါက ဒီကုဒ်ဖြေခြင်းအတွက် အသစ်ဖြစ်ပြီး ထိရောက်သော တိကျသည... | my |
A phenomenological analysis of lifetimes of bottom and charmed hadrons within the framework of the heavy quark expansion is performed. The baryon matrix element is evaluated using the bag model and the nonrelativistic quark model. We find that bottom-baryon lifetimes follow the pattern $\tau(\Omega_b)\simeq\tau(\Xi_b^-... | 在重夸克展开的框架内，对底夸克和粲夸克强子的寿命进行了唯象分析。重子矩阵元通过袋模型和非相对论夸克模型进行计算。我们发现，底重子寿命呈现出 $\tau(\Omega_b)\simeq\tau(\Xi_b^-)>\tau(\Lambda_b)\simeq\tau(\Xi_b^0)$ 的模式。然而，无论是 $\tau(\Lambda_b)/\tau( B_d)$ 的寿命比，还是 $\Lambda_b$ 重子与 $B$ 介子的绝对衰变率，都无法得到解释。解决这两个困难的一种方法是引入线性的 $1/m_Q$ 修正项，即在非轻子衰变宽度中使用强子质量 $m_{H_Q}$ 的五次方代替重夸克质量 $m_Q$ 进行标度。这一修正显著改变了底重子寿... | zh |
We present ALMA and ACA [CI]$^{3}P_{1}-^{3}P_{0}$ ([CI](1-0)) observations of NGC6240, which we combine with ALMA CO(2-1) and IRAM PdBI CO(1-0) data to study the physical properties of the massive molecular (H$_2$) outflow. We discover that the receding and approaching sides of the H$_2$ outflow, aligned east-west, exc... | Presentiamo osservazioni ALMA e ACA della transizione [CI]$^{3}P_{1}-^{3}P_{0}$ ([CI](1-0)) di NGC6240, che combiniamo con dati ALMA della linea CO(2-1) e dati IRAM PdBI della linea CO(1-0) per studiare le proprietà fisiche dell'outflow molecolare massiccio (H$_2$). Scopriamo che i lati in recessione e in avvicinamento... | it |
We show that typical behaviors of market participants at the high frequency scale generate leverage effect and rough volatility. To do so, we build a simple microscopic model for the price of an asset based on Hawkes processes. We encode in this model some of the main features of market microstructure in the context of... | আমরা দেখাই যে উচ্চ ফ্রিকোয়েন্সি স্কেলে বাজারের অংশগ্রহণকারীদের সাধারণ আচরণ লিভারেজ প্রভাব এবং রাফ অস্থিরতা তৈরি করে। এটি করার জন্য, আমরা হকস প্রক্রিয়ার উপর ভিত্তি করে একটি সম্পদের দামের জন্য একটি সাধারণ সূক্ষ্ম মডেল তৈরি করি। উচ্চ ফ্রিকোয়েন্সি ট্রেডিংয়ের প্রেক্ষাপটে বাজারের সূক্ষ্ম কাঠামোর কিছু প্রধান বৈশিষ্ট্য আমর... | bn |
We present a new family of zero-field Ising models over $N$ binary variables/spins obtained by consecutive "gluing" of planar and $O(1)$-sized components and subsets of at most three vertices into a tree. The polynomial-time algorithm of the dynamic programming type for solving exact inference (computing partition func... | เราเสนอตระกูลใหม่ของโมเดลไอซิงแบบสนามศูนย์ (zero-field Ising models) ที่มีตัวแปร/สปินแบบไบนารีจำนวน $N$ ตัว ซึ่งได้มาจากการ "ต่อกัน" อย่างต่อเนื่องขององค์ประกอบที่มีลักษณะระนาบและองค์ประกอบขนาด $O(1)$ รวมถึงชุดย่อยที่มีจุดสุดยอดไม่เกินสามจุดเข้าด้วยกันในรูปแบบต้นไม้ อัลกอริธึมแบบพหุนามที่ใช้การเขียนโปรแกรมแบบพลวัต (dyn... | th |
We develop a robust coarse-grained model for single and double stranded DNA by representing each nucleotide by three interaction sites (TIS) located at the centers of mass of sugar, phosphate, and base. The resulting TIS model includes base-stacking, hydrogen bond, and electrostatic interactions as well as bond-stretch... | Tek ve çift iplikli DNA için, her nükleotidi şeker, fosfat ve bazın kütle merkezlerinde yer alan üç etkileşim bölgesiyle (TIS) temsil ederek sağlam bir kaba tanecikli model geliştiriyoruz. Elde edilen TIS modeli, DNA'nın polimerik yapısını hesaba katan bağ uzama ve bağ açısı potansiyellerinin yanı sıra, baz yığılma, hi... | tr |
Pyrochlore systems ($A_{2}B_{2}O_{7}$) with $A$-site rare-earth local moments and $B$-site $5d$ conduction electrons offer excellent material platforms for the discovery of exotic quantum many-body ground states. Notable examples include U(1) quantum spin liquid of the local moments and semimetallic non-Fermi liquid of... | Пирохлорные системы ($A_{2}B_{2}O_{7}$) с локальными магнитными моментами редкоземельных элементов на позициях $A$ и проводящими электронами $5d$ на позициях $B$ представляют собой превосходные материальные платформы для обнаружения экзотических квантовых многотельных основных состояний. Среди примечательных примеров —... | ru |
We study quantum correlations and discord in a bipartite continuous variable hybrid system formed by linear combinations of coherent states $|\alpha\rangle$ and single photon added coherent states (SPACS) of the form $|\psi\rangle_{\text{dp(pa)}}= \mathcal{N}/\sqrt{2} (\hat{a}^\dagger |\alpha\rangle_a |\alpha\rangle_b ... | Studujeme kvantové korelace a diskord v bipartitním hybridním systému s nepřetržitými proměnnými, který je tvořen lineárními kombinacemi koherentních stavů $|\alpha\rangle$ a koherentních stavů s přidaným jedním fotonem (SPACS) ve tvaru $|\psi\rangle_{\text{dp(pa)}}= \mathcal{N}/\sqrt{2} (\hat{a}^\dagger |\alpha\rangle... | cs |
We present a systematic derivation of a model based on the central moment lattice Boltzmann equation that rigorously maintains Galilean invariance of forces to simulate inertial frame independent flow fields. In this regard, the central moments, i.e. moments shifted by the local fluid velocity, of the discrete source t... | Isinasalarawan namin ang isang sistematikong pagkuha ng isang modelo batay sa lattice Boltzmann equation na gumagamit ng central moment na mahigpit na nagpapanatili ng Galilean invariance ng mga puwersa upang masimulan ang mga field ng daloy na malaya sa inertial na balangkas. Sa ganitong pagtingin, ang mga central mom... | tl |
Large amounts of labeled training data are one of the main contributors to the great success that deep models have achieved in the past. Label acquisition for tasks other than benchmarks can pose a challenge due to requirements of both funding and expertise. By selecting unlabeled examples that are promising in terms o... | Grandes quantidades de dados rotulados para treinamento são um dos principais fatores responsáveis pelo grande sucesso que os modelos profundos alcançaram no passado. A obtenção de rótulos para tarefas que não sejam benchmarks pode representar um desafio devido aos requisitos de financiamento e expertise. Ao selecionar... | pt |
Making use of both MUSE observations of 85 galaxies from the survey GASP (GAs Stripping Phenomena in galaxies with MUSE) and a large sample from MaNGA (Mapping Nearby Galaxies at Apache Point Observatory survey) we investigate the distribution of gas metallicity gradients as a function of stellar mass, for local cluste... | GASP (GAs Stripping Phenomena in galaxies with MUSE) জরিপ থেকে 85টি ছায়াপথের MUSE পর্যবেক্ষণ এবং MaNGA (Mapping Nearby Galaxies at Apache Point Observatory জরিপ) থেকে একটি বৃহৎ নমুনার উপর ভিত্তি করে আমরা স্থানীয় গুচ্ছ ও ক্ষেত্রের ছায়াপথগুলির জন্য তারকীয় ভরের ফাংশন হিসাবে গ্যাস ধাতবতা ঢালের বন্টন নিয়ে গবেষণা করি। ম... | bn |
We present results from the zeroth-order imaging of a Chandra HETGS observation of the nearby Seyfert 2 galaxy Circinus. Twelve X-ray sources were detected in the ACIS-S image of the galaxy, embedded in diffuse X-ray emission. The latter shows a prominent (~18arcsec) soft ``plume'' in the N-W direction, coincident with... | Біз жақын орналасқан Сейферт 2 галактикасы — Циркуль бойынша Chandra HETGS бақылауының нөлдік ретті бейнелеу нәтижелерін ұсынамыз. Галактиканың ACIS-S бейнесінде диффузиялық рентген сәулесінің ортасында он екі рентген көзі табылды. Соңғысы солтүстік-батыс бағытта [OIII] иондау конусымен сәйкес келетін бір айқын (≈18arc... | kk |
Fast Radio Bursts (FRBs) are bright enigmatic radio pulses of roughly millisecond duration that come from extragalactic distances. As part of the MeerTRAP project, we use the MeerKAT telescope array in South Africa to search for and localise those bursts to high precision in real-time. We aim to pinpoint FRBs to their ... | Ledakan Radio Pantas (FRB) adalah denyutan radio terang yang penuh teka-teki dengan tempoh kira-kira milisaat yang berasal dari jarak luar galaksi. Sebagai sebahagian daripada projek MeerTRAP, kami menggunakan tatasusunan teleskop MeerKAT di Afrika Selatan untuk mencari dan menentukan lokasi denyutan tersebut secara te... | ms |
Using the density-matrix renormalization group technique, we study a one-dimensional spin-$\frac{1}{2}$ Heisenberg chain consisting of coupled tetramers as an effective spin model for copper vanadate CuInVO$_5$. We obtain the ground-state phase diagram as a function of intra-tetramer and inter-tetramer exchange interac... | ঘনত্ব-ম্যাট্রিক্স পুনঃসামান্যকরণ গ্রুপ কৌশল ব্যবহার করে, আমরা কপার ভ্যানাডেট CuInVO$_5$-এর জন্য একটি কার্যকর স্পিন মডেল হিসাবে যুক্ত টেট্রামারগুলির গঠনকারী এক-মাত্রিক স্পিন-$\frac{1}{2}$ হেইজেনবার্গ শৃঙ্খলের অধ্যয়ন করি। আমরা টেট্রামার-অভ্যন্তরীণ এবং টেট্রামার-মধ্যবর্তী বিনিময় মিথস্ক্রিয়ার ফাংশন হিসাবে ভূমি-অবস্থার প... | bn |
We made a supplemental study of the superoutbursts and superhumps in SU UMa stars by using the recently released Kepler public data of V1504 Cyg and V344 Lyr. One of the superoutbursts in V1504 Cyg was preceded by a precursor normal outburst which was well separated from the main superoutburst. The superhump first appe... | Realizamos um estudo complementar das supererupções e superprotuberâncias em estrelas SU UMa utilizando dados públicos recentemente disponibilizados pelo Kepler de V1504 Cyg e V344 Lyr. Uma das supererupções em V1504 Cyg foi precedida por uma erupção normal precursora, bem separada da supererupção principal. A superpro... | pt |
The Supernova Cosmology Project has discovered over twenty-eight supernovae (SNe) at 0.35 <z < 0.65 in an ongoing program that uses Type Ia SNe as high-redshift distance indicators. Here we present measurements of the ratio between the locally observed and global Hubble constants, H_0^L/H_0^G, based on the first 7 SNe ... | Dự án Thiên văn học Siêu tân tinh đã phát hiện hơn hai mươi tám siêu tân tinh (SNe) ở dải 0,35 <z < 0,65 trong một chương trình đang tiếp tục sử dụng các siêu tân tinh loại Ia như những chỉ báo khoảng cách ở độ dịch đỏ cao. Ở đây chúng tôi trình bày các phép đo tỷ số giữa hằng số Hubble quan sát tại chỗ và hằng số Hubb... | vi |
Let $\mathcal{P}({\bf N})$ be the power set of $\bf N$. An upper density (on $\bf N$) is a non\-decreasing and subadditive function $\mu^\ast: \mathcal{P}({\bf N})\to\bf R$ such that $\mu^\ast({\bf N}) = 1$ and $\mu^\ast(k \cdot X + h) = \frac{1}{k} \mu^\ast(X)$ for all $X \subseteq \bf N$ and $h,k \in {\bf N}^+$, wher... | Nechť $\mathcal{P}({\bf N})$ značí potenční množinu množiny $\bf N$. Horní hustota (na $\bf N$) je neklesající a subaditivní funkce $\mu^\ast: \mathcal{P}({\bf N})\to\bf R$, pro kterou platí $\mu^\ast({\bf N}) = 1$ a $\mu^\ast(k \cdot X + h) = \frac{1}{k} \mu^\ast(X)$ pro všechny množiny $X \subseteq \bf N$ a čísla $h,... | cs |
General relativity can be formulated equivalently with a non-Riemannian geometry that associates with an affine connection of nonzero nonmetricity $Q$ but vanishing curvature $R$ and torsion $T$. Modification based on this description of gravity generates the $f(Q)$ gravity. In this work we explore the applicatio... | Obecnou teorii relativity lze formulovat ekvivalentně pomocí neřímanovské geometrie, která je spojena s afinní konexí s nenulovou nenulovou nemetrickostí $Q$, ale s mizivou křivostí $R$ a torzí $T$. Modifikace založená na tomto popisu gravitace vede na gravitaci $f(Q)$. V této práci prozkoumáváme aplikaci gravitace $f(... | cs |
Learning a graph topology to reveal the underlying relationship between data entities plays an important role in various machine learning and data analysis tasks. Under the assumption that structured data vary smoothly over a graph, the problem can be formulated as a regularised convex optimisation over a positive semi... | ການຮຽນຮູ້ໂຄງສ້າງຂອງເຄືອຂ່າຍເພື່ອເປີດເຜີຍຄວາມສຳພັນທີ່ແທ້ຈິງລະຫວ່າງຂໍ້ມູນຂອງຂໍ້ມູນມີບົດບາດສຳຄັນໃນການວຽກງານດ້ານການຮຽນຮູ້ຂອງເຄື່ອງຈັກ ແລະ ການວິເຄາະຂໍ້ມູນຕ່າງໆ. ໂດຍອີງໃສ່ຂໍ້ສົມມຸດວ່າຂໍ້ມູນທີ່ມີໂຄງສ້າງປ່ຽນແປງຢ່າງລຽບລຽນໄປຕາມເຄືອຂ່າຍ, ບັນຫາດັ່ງກ່າວສາມາດຖືກຈັດໃຫ້ເປັນບັນຫາການເພີ່ມປະສິດທິພາບໂຄງສ້າງທີ່ເປັນເອກະພາບໃນຂອບເຂດຂອງເຄືອຂ່າ... | lo |
A critical discussion of the present status of the CERN experiments on charm dynamics and hadron collective flow is given. We emphasize the importance of the flow excitation function from 1 to 50 A$\cdot$GeV: here the hydrodynamic model has predicted the collapse of the $v_1$-flow and of the $v_2$-flow at $\sim 10$ A$\... | Diskusi kritis mengenai status saat ini eksperimen CERN tentang dinamika keanggunan (charm) dan aliran kolektif hadron diberikan. Kami menekankan pentingnya fungsi eksitasi aliran dari 1 hingga 50 A$\cdot$GeV: di sini model hidrodinamika telah memprediksi runtuhnya aliran $v_1$ dan aliran $v_2$ pada sekitar 10 A$\cdot$... | id |
We study the implications of Ultra-High Energy Cosmic Ray (UHECR) data from the Pierre Auger Observatory for potential accelerator candidates and cosmogenic neutrino fluxes for different combinations of nuclear disintegration and air-shower models. We exploit the most recent spectral and mass composition data (2017) wi... | ພວກເຮົາສຶກສາຜົນກະທົບຂອງຂໍ້ມູນລັງສີຈາກຈັກກະວານພະລັງງານສູງຫຼາຍ (UHECR) ຈາກສະຖານີດຳເນີນການ Pierre Auger ສຳລັບຜູ້ສະໜອງພະລັງງານທີ່ເປັນໄປໄດ້ ແລະ ຄວາມເຂັ້ມຂອງນິວຕຣິໂນທີ່ເກີດຈາກຈັກກະວານ ໂດຍອີງໃສ່ການປະສົມປະສານທີ່ແຕກຕ່າງກັນຂອງຮູບແບບການແຍກນິວເຄຍ ແລະ ຮູບແບບຂອງເຫດການລັງສີໃນອາກາດ. ພວກເຮົານຳໃຊ້ຂໍ້ມູນລ້າສຸດດ້ານສະເປັກຕຼັມ ແລະ ປະກອບສ່ວນ... | lo |
In the last decade, several works have focused on exploring the material and electrical properties of $\text{GeTe/Sb}_{2}\text{Te}_{3}$ superlattices (SLs) in particular because of some first device implementations demonstrating interesting performances such as fast switching speed, low energy consumption, and non-vola... | ក្នុងទសវត្សរ៍ចុងក្រោយ ការងារជាច្រើនបានផ្តោតលើការស្វែងយល់អំពីលក្ខណៈវត្ថុធាតុ និងលក្ខណៈអគ្គិសនីរបស់ស៊ុបភើឡាតតិច (SLs) $\text{GeTe/Sb}_{2}\text{Te}_{3}$ ជាពិសេស ដោយសារតែការអនុវត្តន៍ឧបករណ៍ជាលើកដំបូងមួយចំនួនបានបង្ហាញពីសមត្ថភាពគួរឱ្យចាប់អារម្មណ៍ ដូចជាល្បឿនប្តូររហ័ស ការប្រើប្រាស់ថាមពលទាប និងលក្ខណៈមិនចងចាំ។ ទោះជាយ៉ាងណាក៏ដោយ មេ... | km |
In this work we present the main atmospheric parameters, carbon, nitrogen and oxygen abundances, and 12C/13C ratios determined in a sample of 28 Galactic clump stars. Abundances of carbon were studied using the C2 band at 5086.2 {\AA}. The wavelength interval 7980-8130 {\AA} with strong CN features was analysed in orde... | En este trabajo presentamos los principales parámetros atmosféricos, las abundancias de carbono, nitrógeno y oxígeno, y las relaciones 12C/13C determinadas en una muestra de 28 estrellas gigantes rojas del racimo galáctico. Las abundancias de carbono se estudiaron utilizando la banda de C2 en 5086,2 {\AA}. Se analizó e... | es |
The multiscale approach to N-body systems is generalized to address the broad continuum of long time and length scales associated with collective behaviors. A technique is developed based on the concept of an uncountable set of time variables and of order parameters (OPs) specifying major features of the system. We ado... | N-বডি তন্ত্রগুলির জন্য মাল্টিস্কেল পদ্ধতিকে সমষ্টিগত আচরণগুলির সাথে সম্পর্কিত দীর্ঘ সময় ও দৈর্ঘ্যের প্রসারিত ক্রমে প্রয়োগ করা হয়। সময়ের গণনাতীত চলরাশি এবং তন্ত্রের প্রধান বৈশিষ্ট্যগুলি নির্দিষ্ট করে এমন অর্ডার প্যারামিটারগুলির (OPs) ধারণা ভিত্তিক একটি কৌশল বিকশিত করা হয়। কেবলমাত্র কয়েকটি সুস্পষ্টভাবে পৃথক স্কেল ব... | bn |
Artificial ice systems have been designed to replicate paradigmatic phenomena observed in frustrated spin systems. Here we present a detailed theoretical analysis based on Monte-Carlo simulations of the low energy phases in an artificial colloidal ice system, a recently introduced ice system where an ensemble of repuls... | কৃত্রিম বরফ ব্যবস্থাগুলি হতাশাজনক স্পিন ব্যবস্থাগুলিতে পর্যবেক্ষিত প্যারাডাইম্যাটিক ঘটনাগুলির অনুকরণ করার জন্য তৈরি করা হয়েছে। এখানে আমরা কৃত্রিম কোলয়েডাল বরফ ব্যবস্থার নিম্ন শক্তি অবস্থাগুলির মন্টে কার্লো অনুকলনের ভিত্তিতে একটি বিস্তারিত তাত্ত্বিক বিশ্লেষণ উপস্থাপন করছি, যা সম্প্রতি চালু করা হয়েছে এমন একটি বরফ ব্যব... | bn |
By using dark nebulae as opaque outer screens, the luminosity function of white dwarfs and M dwarfs has been studied. High-extinction areas towards the Orion A, Serpens and rho Oph cloud complexes were observed, covering a volume corresponding to 464 pc3 in the solar neighbourhood, complete to Mv=16.5. Foreground stars... | 利用暗星云作为不透明的外部屏幕，已对白矮星和M型矮星的光度函数进行了研究。观测了朝向猎户座A、巨蛇座和蛇夫座ρ云复合体的高消光区域，覆盖了太阳邻域内相当于464 pc³的体积，完备至Mv=16.5。通过VRI测光和光度视差法选出了前景恒星。最终得到的前景星样本包含21颗M型矮星和7颗白矮星。所导出的M型矮星光度函数与以往研究结果一致，在Mv=16以上未显示出显著的上升趋势。这7颗白矮星意味着局部质量密度为0.013(±0.005)Msun/pc³（约为太阳邻域动力学质量的15%），这一结果支持其他近期研究结论，但采用的是完全不同的方法。对于这些云团，利用前景恒星数据推导出各自独立的云团距离，同时结合背景恒星和一个简单的银河系模型，获... | zh |
This paper investigates the use of bootstrap-based bias correction of semi-parametric estimators of the long memory parameter in fractionally integrated processes. The re-sampling method involves the application of the sieve bootstrap to data pre-filtered by a preliminary semi-parametric estimate of the long memory par... | В данной статье исследуется использование основанной на бутстрепе коррекции смещения полупараметрических оценок параметра долгой памяти в дробно-интегрированных процессах. Метод повторного сэмплирования предполагает применение решетчатого бутстрепа к данным, предварительно отфильтрованным с использованием предварительн... | ru |
In this paper, we provide non-parametric statistical tools to test stationarity of microstructure noise in general hidden Ito semimartingales, and discuss how to measure liquidity risk using high frequency financial data. In particular, we investigate the impact of non-stationary microstructure noise on some volatility... | Trong bài báo này, chúng tôi cung cấp các công cụ thống kê phi tham số để kiểm định tính dừng của nhiễu vi cấu trúc trong các bán martingale Ito ẩn tổng quát, đồng thời thảo luận cách đo lường rủi ro thanh khoản bằng dữ liệu tài chính tần suất cao. Cụ thể, chúng tôi nghiên cứu tác động của nhiễu vi cấu trúc không dừng ... | vi |
The advantages of adaptivity and feedback are of immense interest in signal processing and communication with many positive and negative results. Although it is established that adaptivity does not offer substantial reductions in minimax mean square error for a fixed number of measurements, existing results have shown ... | Преимущества адаптивности и обратной связи представляют большой интерес в области обработки сигналов и связи, и по этому вопросу имеется множество как положительных, так и отрицательных результатов. Хотя установлено, что адаптивность не обеспечивает существенного снижения минимаксной среднеквадратичной ошибки при фикси... | ru |
We provide the first direct observations of interstellar H+ and He+ pickup ions in the solar wind from 22 AU to 38 AU. We use the Vasyliunas and Siscoe model functional form to quantify the pickup ion distributions, and while the fit parameters generally lie outside their physically expected ranges, this form allows fi... | เราได้ให้ข้อมูลการสังเกตโดยตรงครั้งแรกเกี่ยวกับไอออนที่ถูกดูดเข้ามา (pickup ions) ของ H+ และ He+ จากอวกาศระหว่างดวงดาว ซึ่งอยู่ในลมสุริยะตั้งแต่ 22 AU ถึง 38 AU เราใช้รูปแบบฟังก์ชันของโมเดล Vasyliunas และ Siscoe เพื่อวัดการแจกแจงของไอออนที่ถูกดูดเข้ามา และถึงแม้ว่าพารามิเตอร์ที่ได้จากการประมาณค่าจะอยู่นอกช่วงที่คาดไว้ต... | th |
Fast Radio Bursts (FRBs) are bright enigmatic radio pulses of roughly millisecond duration that come from extragalactic distances. As part of the MeerTRAP project, we use the MeerKAT telescope array in South Africa to search for and localise those bursts to high precision in real-time. We aim to pinpoint FRBs to their ... | Les sursauts radio rapides (FRB) sont des impulsions radio brillantes et énigmatiques d'une durée d'environ une milliseconde provenant de distances extragalactiques. Dans le cadre du projet MeerTRAP, nous utilisons le réseau de télescopes MeerKAT en Afrique du Sud pour détecter et localiser en temps réel ces sursauts a... | fr |
We investigate the Coma cluster galaxy luminosity function (GLF) at faint magnitudes, in particular in the u* band by applying photometric redshift techniques applied to deep u*, B, V, R, I images covering a region of ~1deg2 (R 24). Global and local GLFs in the B, V, R and I bands obtained with photometric redshift sel... | 우리는 약 ~1deg²(R 24)의 영역을 덮는 깊은 u*, B, V, R, I 영상에 광도 적색편이 기법을 적용하여, 특히 u* 대역에서 흐린 등급까지의 성운자리 은하단 은하 등급함수(GLF)를 조사한다. 광도 적색편이 선택을 통해 얻은 B, V, R, I 대역의 전역적 및 지역적 GLF는 통계적 배경 감산에 기반한 이전의 결과들과 일치한다. u* 영상만 덮인 영역에서는 통계적 배경 감산을 수행한 후 GLF를 도출하였다. u* 대역의 GLF는 은하단 중심부에서의 알파값 약 1에서 외곽부로 갈수록 알파값 약 2로 완만한 쪽에서 급경사로 변화하는 경향을 보인다. 이는 ... | ko |
The recently-discovered stellar system in Canis Major is analysed using He-burning Red Clump stars as tracers. Canis Major turns out to be the strongest and most spatially confined overdensity of the whole Galactic Disc, both in terms of number density and of statistical significance. When projected onto the Galactic P... | ប្រព័ន្ធផ្កាយថ្មីៗដែលត្រូវបានរកឃើញនៅក្នុងតំបន់ Canis Major ត្រូវបានវិភាគដោយប្រើផ្កាយ Red Clump ដែលកំពុងឆេះ He ជាសញ្ញាបណ្តាញ។ Canis Major បានបង្ហាញថាជាកន្លែងដែលមានការកើនឡើងខ្លាំងបំផុត និងមានការបំពេញក្នុងតំបន់តូចបំផុតនៅលើឌីសកាឡាក់ទិចទាំងមូល ទាំងពីទិដ្ឋភាពដង់ស៊ីតេចំនួន និងពីភាពសំខាន់ផ្នែកស្ថិតិ។ នៅពេលដែលគេគូរវាលើផ្ទៃកាឡាក... | km |
Astrophotonics is the application of versatile photonic technologies to channel, manipulate, and disperse guided light from one or more telescopes to achieve scientific objectives in astronomy in an efficient and cost-effective way. The developments and demands from the telecommunication industry have driven a major bo... | ອາສໂตรຟໂຕນິກ ແມ່ນການນຳໃຊ້ເຕັກໂນໂລຊີຟໂຕນິກທີ່ມີຄວາມຫຼາກຫຼາຍເຂົ້າໃນການນຳທາງ, ຈັດການ ແລະ ກະຈາຍແສງທີ່ຖືກນຳທາງຈາກໜຶ່ງຫຼືຫຼາຍໆໂທລະສະກົບ ເພື່ອບັນລຸເປົ້າໝາຍດ້ານວິທະຍາສາດໃນດ້ານດາລາສາດ ໃນທາງທີ່ມີປະສິດທິພາບ ແລະ ຄຸ້ມຄ່າ. ການພັດທະນາ ແລະ ຄວາມຕ້ອງການຈາກອຸດສາຫະກຳການສື່ສານໄດ້ຂັບເຄື່ອນໃຫ້ເກີດການກ້າວໜ້າຢ່າງໃຫຍ່ຫຼວງໃນເຕັກໂນໂລຊີຟໂຕນິກ ແລະ ... | lo |
The time-evolution of the maximum and the width of exact analytic wave packet (WP) solutions of the time-dependent Schr\"odinger equation (SE) represents the particle and wave aspects, respectively, of the quantum system. The dynamics of the maximum, located at the mean value of position, is governed by the Newtonian e... | Zaman-bağımlı Schrödinger denkleminin (SE) tam analitik dalga paketi (DP) çözümlerinin maksimumunun ve genişliğinin zamanla değişim evrimi, sırasıyla kuantum sisteminin parçacık ve dalga yönlerini temsil eder. Ortalama konum değerinde yer alan maksimumun dinamiği, ilgili klasik problemin Newton denklemi tarafından beli... | tr |
Superfluidity and superconductivity are remarkable manifestations of quantum coherence at a macroscopic scale. The dynamics of superfluids has dominated the study of these systems for decades now, but a comprehensive theoretical framework is still lacking. We introduce a local extension of the time-dependent density fu... | 초유동성과 초전도성은 거시적 규모에서 양자 일관성이 나타나는 놀라운 예이다. 수십 년 동안 초유체의 역학이 이러한 시스템 연구를 주도해 왔으나, 여전히 포괄적인 이론 체계가 부족한 실정이다. 우리는 페르미온 초유체의 역학을 기술하기 위해 시간의존 밀도범함수 이론의 국소적 확장을 제안한다. 이 접근법을 통해 와동자 양자화, 생성 및 역학, 초유체에서 정상상으로의 전이, 그리고 이중유체 유체역학, 기나이부-란다우 및/또는 그로스-피타예프스키 접근법의 범위를 벗어난 여러 가지 큰 진폭 집단 모드들을 정확하게 표현할 수 있다. 우리는 단위 페르미 기체에 대해 양자화된 와동자... | ko |
Superfluidity and superconductivity are remarkable manifestations of quantum coherence at a macroscopic scale. The dynamics of superfluids has dominated the study of these systems for decades now, but a comprehensive theoretical framework is still lacking. We introduce a local extension of the time-dependent density fu... | La superfluidez y la superconductividad son manifestaciones notables de la coherencia cuántica a escala macroscópica. La dinámica de los superfluidos ha dominado el estudio de estos sistemas durante décadas, pero aún carece de un marco teórico completo. Introducimos una extensión local de la teoría del funcional de la ... | es |
Kundt spacetimes are of great importance in general relativity in 4 dimensions and have a number of topical applications in higher dimensions in the context of string theory. The degenerate Kundt spacetimes have many special and unique mathematical properties, including their invariant curvature structure and their hol... | クンドの時空は4次元の一般相対性理論において非常に重要であり、弦理論の文脈における高次元での多くの注目すべき応用を持っている。退化したクンドの時空は、不変な曲率構造やホロノミー構造など、多くの特別で一意的な数学的性質を持つ。我々は4次元における一般クンド時空に対して、幾何学的かつ運動学的な厳密な定義を与える。本質的に、クンド時空とは、測地的かつ膨張なし、せん断なし、ねじれのないヌルベクトルを許容する時空として定義される。クンド時空が退化しているとは、好ましい運動学的ヌルフレームと曲率ヌルフレームがすべて整列している場合を指す。退化したクンド時空は、4次元において唯一の $\mathcal{I}$-非退化でない時空であり、スカラー多項... | ja |
In this paper, we provide non-parametric statistical tools to test stationarity of microstructure noise in general hidden Ito semimartingales, and discuss how to measure liquidity risk using high frequency financial data. In particular, we investigate the impact of non-stationary microstructure noise on some volatility... | En este artículo, proporcionamos herramientas estadísticas no paramétricas para probar la estacionariedad del ruido microestructural en semimartingalas de Itô ocultas generales, y discutimos cómo medir el riesgo de liquidez utilizando datos financieros de alta frecuencia. En particular, investigamos el impacto del ruid... | es |
We investigate the limitations that emerge in thermodynamic tasks as a result of having local control only over the components of a thermal machine. These limitations are particularly relevant for devices composed of interacting many-body systems. Specifically, we study protocols of work extraction that employ a many-b... | ကျွန်ုပ်တို့သည် အပူစက်၏ အစိတ်အပိုင်းများကိုသာ ဒေသဆိုင်ရာ ထိန်းချုပ်မှုရှိခြင်းကြောင့် ပေါ်ပေါက်လာသော စွမ်းအင်ဖြန့်ဖြူးရေး လုပ်ငန်းများတွင် ရှိသည့် ကန့်သတ်ချက်များကို စူးစမ်းစစ်ဆေးကြသည်။ ထိုကန့်သတ်ချက်များသည် အပြန်အလှန် လုပ်ဆောင်နေသော စုပေါင်းစနစ်များဖြင့် ဖွဲ့စည်းထားသည့် ကိရိယာများအတွက် အထူးသင့်လျော်ပါသည်။ သီးသန့်ဆိုလျ... | my |
The Supernova Cosmology Project has discovered over twenty-eight supernovae (SNe) at 0.35 <z < 0.65 in an ongoing program that uses Type Ia SNe as high-redshift distance indicators. Here we present measurements of the ratio between the locally observed and global Hubble constants, H_0^L/H_0^G, based on the first 7 SNe ... | Il Supernova Cosmology Project ha scoperto oltre ventotto supernove (SNe) con 0,35 <z < 0,65 nell'ambito di un programma in corso che utilizza le SNe di tipo Ia come indicatori di distanza ad alto redshift. Presentiamo qui misure del rapporto tra la costante di Hubble osservata localmente e quella globale, H_0^L/H_0^G,... | it |
Spelling error correction is one of topics which have a long history in natural language processing. Although previous studies have achieved remarkable results, challenges still exist. In the Vietnamese language, a state-of-the-art method for the task infers a syllable's context from its adjacent syllables. The method'... | ការកែតម្រូវកំហុសអក្ខរាវិរុទ្ធ គឺជាប្រធានបទមួយក្នុងចំណោមប្រធានបទជាច្រើនដែលមានប្រវត្តិវែងឆ្ងាយក្នុងការដំណើរការភាសាធម្មជាតិ។ ទោះបីជាការសិក្សាមុនៗបានសម្រេចលទ្ធផលគួរឱ្យកត់សម្គាល់ក៏ដោយ ក៏នៅតែមានបញ្ហាប្រឈមជាច្រើនដែលត្រូវដោះស្រាយ។ ក្នុងភាសាវៀតណាម វិធីសាស្ត្រដ៏ទាន់សម័យបំផុតសម្រាប់បេសកកម្មនេះ គឺការសន្និដ្ឋានបរិបទនៃព្យញ្ជនៈមួយពីព... | km |
We investigate the Coma cluster galaxy luminosity function (GLF) at faint magnitudes, in particular in the u* band by applying photometric redshift techniques applied to deep u*, B, V, R, I images covering a region of ~1deg2 (R 24). Global and local GLFs in the B, V, R and I bands obtained with photometric redshift sel... | Kami mengkaji fungsi kecerahan galaksi dalam gugusan Coma (GLF) pada magnitud malap, khususnya dalam jalur u*, dengan menggunakan teknik pergeseran merah fotometrik yang dikenakan ke imej u*, B, V, R, I yang dalam yang meliputi kawasan ~1darjah2 (R 24). GLF global dan setempat dalam jalur B, V, R dan I yang diperoleh m... | ms |
During the early 1830's Bernard Bolzano, working in Prague, wrote a manuscript giving a foundational account of numbers and their properties. In the final section of his work he described what he called `infinite number expressions' and `measurable numbers'. This work was evidently an attempt to provide an improved pro... | V počátcích 30. let 19. století Bernard Bolzano, pracující v Praze, napsal rukopis, ve kterém podal základní výklad čísel a jejich vlastností. Ve svém posledním oddílu popsal to, čemu říkal „nekonečné číselné výrazy“ a „měřitelná čísla“. Tato práce byla zjevně pokusem o poskytnutí lepšího důkazu postačující podmínky ob... | cs |
The advantages of adaptivity and feedback are of immense interest in signal processing and communication with many positive and negative results. Although it is established that adaptivity does not offer substantial reductions in minimax mean square error for a fixed number of measurements, existing results have shown ... | Las ventajas de la adaptabilidad y la retroalimentación son de gran interés en el procesamiento de señales y las comunicaciones, con muchos resultados positivos y negativos. Aunque está establecido que la adaptabilidad no ofrece reducciones sustanciales en el error cuadrático medio minimax para un número fijo de medici... | es |
This paper investigates the use of bootstrap-based bias correction of semi-parametric estimators of the long memory parameter in fractionally integrated processes. The re-sampling method involves the application of the sieve bootstrap to data pre-filtered by a preliminary semi-parametric estimate of the long memory par... | In diesem Artikel wird die Anwendung einer auf dem Bootstrap-Verfahren basierenden Bias-Korrektur für semiparametrische Schätzer des Langgedächtnisparameters in fraktional integrierten Prozessen untersucht. Die Resampling-Methode besteht darin, das Sieve-Bootstrap-Verfahren auf Daten anzuwenden, die zuvor mittels einer... | de |
Superfluidity and superconductivity are remarkable manifestations of quantum coherence at a macroscopic scale. The dynamics of superfluids has dominated the study of these systems for decades now, but a comprehensive theoretical framework is still lacking. We introduce a local extension of the time-dependent density fu... | La superfluidité et la supraconductivité sont des manifestations remarquables de la cohérence quantique à une échelle macroscopique. L'étude de la dynamique des superfluides a dominé la recherche sur ces systèmes depuis des décennies, mais un cadre théorique complet fait encore défaut. Nous introduisons une extension l... | fr |
In this work we present the main atmospheric parameters, carbon, nitrogen and oxygen abundances, and 12C/13C ratios determined in a sample of 28 Galactic clump stars. Abundances of carbon were studied using the C2 band at 5086.2 {\AA}. The wavelength interval 7980-8130 {\AA} with strong CN features was analysed in orde... | Trong nghiên cứu này, chúng tôi trình bày các thông số khí quyển chính, hàm lượng carbon, nitơ và oxy, cũng như các tỷ số 12C/13C xác định trong một mẫu gồm 28 ngôi sao cụm đỏ thuộc Ngân Hà. Hàm lượng carbon được nghiên cứu bằng cách sử dụng dải C2 tại 5086,2 {\AA}. Khoảng bước sóng 7980–8130 {\AA} chứa các đặc trưng C... | vi |
The current early stage in the investigation of the stability of the Kerr metric is characterized by the study of appropriate model problems. Particularly interesting is the problem of the stability of the solutions of the Klein-Gordon equation, describing the propagation of a scalar field in the background of a rotati... | ការសិក្សាបឋមនាពេលបច្ចុប្បន្ននៃស្ថេរភាពនៃគំរូ Kerr ត្រូវបានគេចាត់ទុកថាជាការសិក្សាលើបញ្ហាគំរូដែលសមស្រប។ បញ្ហាដែលគួរឱ្យចាប់អារម្មណ៍ជាពិសេសគឺបញ្ហាស្ថេរភាពនៃដំណោះស្រាយនៃសមីការ Klein-Gordon ដែលពិពណ៌នាអំពីការរីករាយរបស់វាលស្កាលែរនៅក្នុងបរិបទនៃរន្ធខ្មៅបង្វិល (Kerr-)។ លទ្ធផលបង្ហាញថា ស្ថេរភាពនៃវាលពឹងផ្អែកយ៉ាងខ្លាំងទៅតាមម៉ាសរបស់វា... | km |
A recent publication provides the network graph for a neocortical microcircuit comprising 8 million connections between 31,000 neurons (H. Markram, et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015) no. 2, 456-492). Since traditional graph-theoretical methods may not be sufficient to ... | Eine kürzlich erschienene Publikation liefert den Netzwerkgraphen eines neokortikalen Mikrozirkuits, der 8 Millionen Verbindungen zwischen 31.000 Neuronen umfasst (H. Markram et al., Reconstruction and simulation of neocortical microcircuitry, Cell, 163 (2015), Nr. 2, 456–492). Da traditionelle graphentheoretische Meth... | de |
Background. When selecting predictive tools, clinicians and healthcare professionals are challenged with an overwhelming number of tools, most of which have never been evaluated for comparative effectiveness. To overcome this challenge, the authors developed and validated an evidence-based framework for grading and ass... | Úvod. Při výběru prediktivních nástrojů se lékaři a zdravotničtí pracovníci potýkají s přetížením velkým počtem dostupných nástrojů, z nichž většina nikdy nebyla posouzena z hlediska srovnatelné účinnosti. Za účelem překonání této výzvy autoři vyvinuli a ověřili důkazem založený rámec pro hodnocení a posuzování predikt... | cs |
We develop a robust coarse-grained model for single and double stranded DNA by representing each nucleotide by three interaction sites (TIS) located at the centers of mass of sugar, phosphate, and base. The resulting TIS model includes base-stacking, hydrogen bond, and electrostatic interactions as well as bond-stretch... | نطور نموذجًا خشنًا قويًا للحمض النووي أحادي وثنائي السلسلة من خلال تمثيل كل نوكليوتيد بثلاثة مواقع تفاعل (TIS) تقع عند مراكز الكتلة للسكر والفوسفات والقاعدة. ويشمل النموذج الناتج (TIS) تفاعلات التراص القاعدي، وروابط الهيدروجين، والتفاعلات الكهروستاتيكية، إضافة إلى جهود تمدد الروابط وزوايا الروابط التي تأخذ في الاعتبار ... | ar |
Late-Babylonian mathematics (450-100 BC), represented by some 60 cuneiform tablets from Babylon and Uruk, is incompletely known compared to its abundantly preserved, well-studied Old-Babylonian predecessor (1800-1600 BC). With the present paper, 16 fragments from Babylon, probably belonging to 13 different tablets, are... | 晚巴比伦数学（公元前450年–前100年）的资料仅由来自巴比伦和乌尔克的大约60块楔形文字泥板代表，与大量保存且研究充分的古巴比伦时期数学（公元前1800年–前1600年）相比，其内容尚不完整。本文新增了来自巴比伦的16块残片，可能属于13块不同的泥板，将其纳入这一文献体系。其中两块显著的泥板代表了一类此前未知的极大因数分解表，可恰当地视为巴比伦“数值计算”的实例（第一节）。在这些表格中，一个极大的六十进制数——表示一个小因数（9或12）的高次幂，或若干此类数的乘积——被其组成因数（9或12）反复除法，极有可能一直除到结果为1为止。在文本A中，初始数是一个相当于9的46次方的25位数；在文本B中，初始数是一个相当于9的11次方乘以1... | zh |
In this work we present the main atmospheric parameters, carbon, nitrogen and oxygen abundances, and 12C/13C ratios determined in a sample of 28 Galactic clump stars. Abundances of carbon were studied using the C2 band at 5086.2 {\AA}. The wavelength interval 7980-8130 {\AA} with strong CN features was analysed in orde... | Sa gawaing ito, iniharap namin ang pangunahing mga atmosperikong parameter, mga abundance ng carbon, nitrogen, at oxygen, at mga rasyo ng 12C/13C na natukoy sa isang sample na binubuo ng 28 Galactic clump stars. Ang mga abundance ng carbon ay sinuri gamit ang C2 band sa 5086.2 {\AA}. Ang wavelength interval na 7980-813... | tl |
Many academics have called for increasing attention to theory in software engineering. Consequently, this paper empirically evaluates two dissimilar software development process theories - one expressing a more traditional, methodical view (FBS) and one expressing an alternative, more improvisational view (SCI). A prim... | بہت سے ماہرین تعلیم نے سافٹ ویئر انجینئرنگ میں نظریات پر توجہ بڑھانے کی اپیل کی ہے۔ نتیجے کے طور پر، اس مقالے میں دو مختلف قسم کے سافٹ ویئر ترقی کے عمل کے نظریات کا تجرباتی جائزہ لیا گیا ہے - ایک روایتی، منظم نقطہ نظر (FBS) کو ظاہر کرتا ہے اور دوسرا ایک متبادل، زیادہ تخلیقی نقطہ نظر (SCI) کو بیان کرتا ہے۔ ایک وسیع پیما... | ur |
In this paper, we provide non-parametric statistical tools to test stationarity of microstructure noise in general hidden Ito semimartingales, and discuss how to measure liquidity risk using high frequency financial data. In particular, we investigate the impact of non-stationary microstructure noise on some volatility... | Neste artigo, fornecemos ferramentas estatísticas não paramétricas para testar a estacionariedade do ruído de microestrutura em semimartingales de Itô ocultos gerais, e discutimos como medir o risco de liquidez utilizando dados financeiros de alta frequência. Em particular, investigamos o impacto do ruído de microestru... | pt |
With the aim of better understanding the class of 4D theories generated by compactifications of 6D superconformal field theories (SCFTs), we study the structure of N = 1 supersymmetric punctures for class S_Gamma theories, namely the 6D SCFTs obtained from M5-branes probing an ADE singularity. For M5-branes probing a C... | Dengan tujuan memahami lebih baik kelas teori 4D yang dihasilkan dari kompaktifikasi teori medan superkonformal 6D (SCFTs), kami mempelajari struktur lubang supersimetri N = 1 untuk teori kelas S_Gamma, yaitu SCFT 6D yang diperoleh dari M5-brana yang menelusuri singularitas ADE. Untuk M5-brana yang menelusuri singulari... | id |
Let A be a C*-algebra and A** its enveloping von Neumann algebra. C. Akemann suggested a kind of non-commutative topology in which certain projections in A** play the role of open sets. The adjectives "open", "closed", "compact", and "relatively compact" all can be applied to projections in A**. Two operator inequaliti... | Cho A là một C*-đại số và A** là đại số von Neumann bao của nó. C. Akemann đã đề xuất một dạng tô pô không giao hoán trong đó một số phép chiếu nhất định trong A** đóng vai trò như các tập mở. Các tính từ "mở", "đóng", "compact" và "compact tương đối" đều có thể áp dụng cho các phép chiếu trong A**. Akemann đã sử dụng ... | vi |
With the aim of better understanding the class of 4D theories generated by compactifications of 6D superconformal field theories (SCFTs), we study the structure of N = 1 supersymmetric punctures for class S_Gamma theories, namely the 6D SCFTs obtained from M5-branes probing an ADE singularity. For M5-branes probing a C... | Com o objetivo de compreender melhor a classe de teorias 4D geradas por compactificações de teorias de campo superconformes 6D (SCFTs), estudamos a estrutura de punções supersimétricas com N = 1 para teorias da classe S_Gamma, ou seja, as SCFTs 6D obtidas a partir de branas M5 sondando uma singularidade ADE. Para brana... | pt |
We derive mass functions (MF) for halo red dwarfs (the faintest hydrogen burning stars) and then extrapolate to place limits on the total mass of halo brown dwarfs (stars not quite massive enough to burn hydrogen). The mass functions are obtained from the luminosity function of a sample of 114 local halo stars in the U... | Obtemos funções de massa (FM) para anãs vermelhas do halo (as estrelas que queimam hidrogênio mais fracas) e, em seguida, extrapolamos para estabelecer limites sobre a massa total de anãs marrons do halo (estrelas que não são suficientemente massivas para queimar hidrogênio). As funções de massa são obtidas a partir da... | pt |
The cosmic microwave background (CMB) temperature anisotropies exhibit a large-scale dipolar power asymmetry. To determine whether this is due to a real, physical modulation or is simply a large statistical fluctuation requires the measurement of new modes. Here we forecast how well CMB polarization data from \Planck\ ... | Ang mga anisotropiya ng temperatura ng cosmic microwave background (CMB) ay nagpapakita ng malawakang dipolar na hindi pagkakapantay ng lakas. Upang matukoy kung ito ay dahil sa tunay na pisikal na modulasyon o simpleng malaking statistical fluctuation ay nangangailangan ng pagsukat ng mga bagong mode. Dito, hinuhulaan... | tl |
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