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Modern observatories of ultra-high energy cosmic rays (UHECR) have collected over 10^4 events with energies above 10 EeV, whose arrival directions appear to be nearly isotropically distributed. On the other hand, the distribution of matter in the nearby Universe -- and, therefore, presumably also that of UHECR sources ... | Observatorium modern untuk sinar kosmik energi ultra-tinggi (UHECR) telah mengumpulkan lebih dari 10^4 kejadian dengan energi di atas 10 EeV, yang arah datangnya tampak hampir terdistribusi secara isotropik. Di sisi lain, distribusi materi di alam semesta dekat—dan dengan demikian kemungkinan besar juga distribusi sumb... | id |
This paper highlights the size-dependency of income distributions, i.e. the income distribution curves versus the population of a country systematically. By using the generalized Lotka-Volterra model to fit the empirical income data in the United States during 1996-2007, we found an important parameter $\lambda$ can sc... | In dieser Arbeit wird die Größenabhängigkeit von Einkommensverteilungen systematisch untersucht, d. h. die Einkommensverteilungskurven in Abhängigkeit von der Bevölkerung eines Landes. Unter Verwendung des verallgemeinerten Lotka-Volterra-Modells zur Anpassung der empirischen Einkommensdaten der Vereinigten Staaten aus... | de |
Tractography is typically performed for each subject using the diffusion tensor imaging (DTI) data in its native subject space rather than in some space common to the entire study cohort. Despite performing tractography on a population average in a normalized space, the latter is considered less favorably at the \emph{... | Phương pháp tạo bản đồ đường dẫn sợi thần kinh thường được thực hiện riêng cho từng đối tượng bằng cách sử dụng dữ liệu hình ảnh phân biệt tenxơ (DTI) trong không gian chủ thể nguyên bản thay vì trong một không gian chung cho toàn bộ nhóm nghiên cứu. Mặc dù việc tạo bản đồ đường dẫn sợi thần kinh trên trung bình quần t... | vi |
Using a sample of BzK-selected galaxies at z~2 identified from the CFHT/WIRCAM near-infrared survey of GOODS-North, we discuss the relation between star formation rate (SFR), specific star formation rate (SSFR), and stellar mass (M_{*}), and the clustering of galaxies as a function of these parameters. For star-forming... | ដោយប្រើសំណាកនៃហ្គាឡាក់ស៊ីដែលបានជ្រើសរើសតាម BzK នៅ z~2 ដែលបានកំណត់ពីការស្ទង់ពន្លឺក្រហមនៅជិតរបស់ CFHT/WIRCAM នៅក្នុង GOODS-North យើងពិភាក្សាអំពីទំនាក់ទំនងរវាងអត្រាការបង្កើតផ្កាយ (SFR) អត្រាការបង្កើតផ្កាយជាក់លាក់ (SSFR) និងម៉ាសផ្កាយ (M_{*}) និងការប្រមូលផ្តុំគ្នារបស់ហ្គាឡាក់ស៊ីតាមអនុគមន៍នៃប៉ារ៉ា... | km |
Dynamical scenarios of terrestrial planets formation involve strong perturbations of the inner part of the solar system by the giant-planets, leading to enhanced impact velocities and subsequent collisional erosion. We quantitatively estimate the effect of collisional erosion on the resulting composition of Earth, and ... | تتضمن السيناريوهات الديناميكية لتكوين الكواكب الأرضية اضطرابات قوية في الجزء الداخلي من النظام الشمسي ناتجة عن الكواكب العملاقة، مما يؤدي إلى زيادة سرعات التصادم والتآكل التصادمي اللاحق. نقوم بتقدير كمي لتأثير التآكل التصادمي على التركيب النهائي للأرض، ونقدّر كيف يمكن أن يوفر هذا معلومات حول السياق الديناميكي لتكوينها.... | ar |
The physically relevant singularities occurring in FRW cosmologies had traditionally been thought to be limited to the "big bang", and possibly a "big crunch". However, over the last few years, the zoo of cosmological singularities considered in the literature has become considerably more extensive, with "big rips" and... | As singularidades fisicamente relevantes que ocorrem nas cosmologias FRW tradicionalmente haviam sido consideradas limitadas ao "big bang" e, possivelmente, ao "big crunch". No entanto, nos últimos anos, o conjunto de singularidades cosmológicas consideradas na literatura tornou-se consideravelmente mais amplo, com a i... | pt |
The Fr\'echet distance provides a natural and intuitive measure for the popular task of computing the similarity of two (polygonal) curves. While a simple algorithm computes it in near-quadratic time, a strongly subquadratic algorithm cannot exist unless the Strong Exponential Time Hypothesis fails. Still, fast practic... | La distance de Fréchet fournit une mesure naturelle et intuitive pour la tâche populaire consistant à calculer la similarité entre deux courbes (polygonales). Bien qu'un algorithme simple permette de la calculer en un temps presque quadratique, un algorithme fortement sous-quadratique ne peut exister sans que l'hypothè... | fr |
This study shows how to obtain least-squares solutions to initial and boundary value problems to nonhomogeneous linear differential equations with nonconstant coefficients of any order. However, without loss of generality, the approach has been applied to second order differential equations. The proposed method has two... | Бұл зерттеуде кез келген ретті тұрақты емес коэффициенттері бар сызықты біртекті емес дифференциалдық теңдеулердің бастапқы және шекаралық шарттар есептерінің ең кіші квадраттар әдісімен шешімін алу тәсілі көрсетілген. Алайда, жалпылыққа кедергі келтірмей, бұл әдіс екінші ретті дифференциалдық теңдеулерге қолданылды. Ұ... | kk |
This paper proposes a new paradigm for handling far-field multi-speaker data in an end-to-end neural network manner, called directional automatic speech recognition (D-ASR), which explicitly models source speaker locations. In D-ASR, the azimuth angle of the sources with respect to the microphone array is defined as a ... | កក្រមនេះស្នើនូវគំរូថ្មីមួយសម្រាប់ការដំណើរការទិន្នន័យសំឡេងអ្នកនិយាយច្រើននាក់ពីចម្ងាយឆ្ងាយ ដោយប្រើបណ្ដាញប្រសាទអ៊ីនធឺណិតពីដើមដល់ចប់ ដែលហៅថាការស្គាល់សំឡេងស្វ័យប្រវត្តិទិសដៅ (D-ASR) ដែលធ្វើម៉ូដែលទីតាំងអ្នកនិយាយប្រភពដោយច្បាស់លាស់។ នៅក្នុង D-ASR មុំអាស៊ីមុតនៃប្រភពទាក់ទងនឹងអា... | km |
The results of combined experimental and theoretical study of substitutional and clustering effects in Bi-doped TiO2 hosts (bulk and thin-film morphologies) are presented. Bi-doping of the bulk and thin-film titanium dioxide was made with help of pulsed ion-implantation (E(Bi+) = 30 keV, D = 1 * 1017 cm-2) without post... | Se presentan los resultados de un estudio combinado experimental y teórico sobre los efectos de sustitución y agrupamiento en matrices de TiO₂ dopadas con Bi (en morfologías de volumen y capa delgada). El dopaje con Bi en dióxido de titanio de volumen y en capa delgada se realizó mediante implantación iónica pulsada (E... | es |
We study spectral theory for bounded Borel subsets of $\br$ and in particular finite unions of intervals. For Hilbert space, we take $L^2$ of the union of the intervals. This yields a boundary value problem arising from the minimal operator $\Ds = \frac1{2\pi i}\frac{d}{dx}$ with domain consisting of $C^\infty$ functio... | Chúng tôi nghiên cứu lý thuyết phổ cho các tập con Borel bị chặn của $\br$ và đặc biệt là các hợp hữu hạn các khoảng. Đối với không gian Hilbert, chúng tôi xét $L^2$ của hợp các khoảng đó. Điều này dẫn đến một bài toán biên phát sinh từ toán tử tối thiểu $\Ds = \frac1{2\pi i}\frac{d}{dx}$ với miền xác định gồm các hàm ... | vi |
The detection of manufacturing errors is crucial in fabrication processes to ensure product quality and safety standards. Since many defects occur very rarely and their characteristics are mostly unknown a priori, their detection is still an open research question. To this end, we propose DifferNet: It leverages the de... | การตรวจจับข้อผิดพลาดในการผลิตมีความสำคัญอย่างยิ่งในกระบวนการผลิต เพื่อให้มั่นใจในคุณภาพของผลิตภัณฑ์และมาตรฐานความปลอดภัย เนื่องจากข้อบกพร่องหลายประเภทเกิดขึ้นอย่างหายากมาก และลักษณะเฉพาะของข้อบกพร่องเหล่านี้ส่วนใหญ่ไม่เป็นที่ทราบล่วงหน้า การตรวจจับจึงยังคงเป็นประเด็นวิจัยที่เปิดอยู่ ด้วยเหตุนี้ เราจึงเสนอ DifferNet: ซึ... | th |
The impressive performance of deep neural networks (DNNs) has immensely strengthened the line of research that aims at theoretically analyzing their effectiveness. This has incited research on the reaction of DNNs to noisy input, namely developing adversarial input attacks and strategies that lead to robust DNNs to the... | ประสิทธิภาพอันน่าประทับใจของเครือข่ายประสาทเทียมเชิงลึก (DNNs) ได้ส่งเสริมเส้นทางการวิจัยที่มุ่งเน้นการวิเคราะห์เชิงทฤษฎีเกี่ยวกับประสิทธิผลของโมเดลดังกล่าวอย่างมาก ซึ่งนำไปสู่งานวิจัยที่ศึกษาการตอบสนองของ DNN ต่อสัญญาณนำเข้าที่มีสัญญาณรบกวน โดยเฉพาะการพัฒนาการโจมตีด้วยข้อมูลเชิงรุกราน (adversarial input attacks) และกล... | th |
We propose a model for the theoretical description of a weak-link Josephson junction, in which the weak link is spin-polarized due to proximity to a ferromagnetic metal (S-(F|S)-S). Employing Usadel transport theory appropriate for diffusive systems, we show that the weak link is described within the framework of Andre... | Kami mengusulkan suatu model untuk deskripsi teoretis dari persambungan Josephson berantai lemah, di mana rantai lemah tersebut terpolarisasi spin akibat kedekatannya dengan logam ferromagnetik (S-(F|S)-S). Dengan menggunakan teori transport Usadel yang sesuai untuk sistem difusif, kami menunjukkan bahwa rantai lemah d... | id |
The ejected material at the binary neutron star merger GW 170817 was confirmed as a kilonova by UV, optical, and IR observations. This event provides a unique opportunity to investigate the particle acceleration at a mildly relativistic shock propagating in the circumbinary medium. In this paper, we simulate the nonthe... | Das ausgestoßene Material bei der Verschmelzung binärer Neutronensterne GW 170817 wurde durch UV-, optische und IR-Beobachtungen als Kilonova bestätigt. Dieses Ereignis bietet eine einzigartige Gelegenheit, die Teilchenbeschleunigung an einem leicht relativistischen Stoß zu untersuchen, der sich im umgebenden Medium de... | de |
The mechanism of negative group delay (NGD) is used to understand the anticipatory capability of a retina. Experiments with retinas from bull frogs are performed to compare with the predictions of the NGD model. In particulars, whole field stochastic stimulation with various time correlations are used to probe anticipa... | يُستخدم مبدأ التأخير السالب للمجموعة (NGD) لفهم القدرة التنبؤية للشبكية. تُجرى تجارب على شبكيات الضفادع الثور لمقارنتها بتوقعات نموذج التأخير السالب للمجموعة. بشكل خاص، تُستخدم تحفيزات عشوائية على كامل المجال بفترات ارتباط زمنية مختلفة لدراسة الاستجابات التنبؤية الصادرة عن الشبكية. نجد أن نموذج التأخير السالب للمجموعة ... | ar |
Numerical software are widely used in safety-critical systems such as aircrafts, satellites, car engines and so on, facilitating dynamics control of such systems in real time, it is therefore absolutely necessary to verify their correctness. It is a long standing challenge to guarantee verified properties of numerical ... | Sayısal yazılımlar, uçaklar, uydu sistemleri, otomobil motorları gibi güvenliği kritik olan sistemlerde yaygın olarak kullanılmakta ve bu tür sistemlerin dinamik kontrolünü gerçek zamanlı olarak sağlamaktadır; bu nedenle doğruluklarının doğrulanması kesinlikle gereklidir. Sayısal yazılımların doğrulanmış özelliklerinin... | tr |
We study variants of the classic $s$-$t$ cut problem and prove the following improved hardness results assuming the Unique Games Conjecture (UGC). - For any constant $k \geq 2$ and $\epsilon > 0$, we show that Directed Multicut with $k$ source-sink pairs is hard to approximate within a factor $k - \epsilon$. This mat... | Sinusuri namin ang mga pagkakaiba-iba ng klasikong problema sa $s$-$t$ na hiwa at nagpapatunay ng mga sumusunod na mapapait na resulta sa pagtatantiya na umaasa sa Unique Games Conjecture (UGC). – Para sa anumang pare-pareho ang halaga $k \geq 2$ at $\epsilon > 0$, ipinapakita namin na mahirap tantiyahin ang Directed M... | tl |
Profinite groups with a cyclotomic $p$-orientation are introduced and studied. The special interest in this class of groups arises from the fact that any absolute Galois group $G_{K}$ of a field $K$ is indeed a profinite group with a cyclotomic $p$-orientation $\theta_{K,p}\colon G_{K}\to\mathbb{Z}_p^\times$ which is e... | Si introducono e si studiano i gruppi profiniti con una orientazione ciclotomica $p$-adica. L'interesse particolare per questa classe di gruppi deriva dal fatto che ogni gruppo di Galois assoluto $G_{K}$ di un campo $K$ è effettivamente un gruppo profinito con una orientazione ciclotomica $p$-adica $\theta_{K,p}\colon ... | it |
The Fr\'echet distance provides a natural and intuitive measure for the popular task of computing the similarity of two (polygonal) curves. While a simple algorithm computes it in near-quadratic time, a strongly subquadratic algorithm cannot exist unless the Strong Exponential Time Hypothesis fails. Still, fast practic... | Jarak Fr\'echet memberikan ukuran yang alami dan intuitif untuk tugas populer menghitung kemiripan dua kurva (poligonal). Meskipun terdapat algoritma sederhana yang menghitungnya dalam waktu hampir kuadratik, algoritma yang kuat dan subkuadratik tidak dapat ada kecuali Hipotesis Waktu Eksponensial Kuat (Strong Exponent... | id |
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in the $\sim$2~years between the observations allows a test of models for this ionized absorber. The absorption feature at ~0.7 keV (quasar fra... | نعرض ملاحظتين من تلسكوب ROSAT PSPC للنواة المتفجرة الإشعاعية ذات الفصوص المهيمنة 3C 351، والتي تُظهر "مُمتصًا متأيّنًا" في طيفها السيني. إن التغير في التدفق بمقدار 1.7 خلال فترة حوالي سنتين بين الملاحظتين يتيح اختبار نماذج هذا الممتص المتأيّن. تظهر سمة الامتصاص عند ~0.7 كيلو إلكترون فولت (في إطار النواة المتفجرة) في ال... | ar |
First-principles total energy calculations and experimental measurements were performed to study the surface reconstructions of the magnetostrictive Fe3Ga alloy. The magnetostrictive behavior was evaluated in the bulk by compressing and stretching its lattice parameter. Results demonstrate two thermodynamically stable ... | ম্যাগনেটোস্ট্রিক্টিভ Fe3Ga খাদের পৃষ্ঠতল পুনর্গঠন অধ্যয়নের জন্য প্রথম-নীতির উপর ভিত্তি করে মোট শক্তির গণনা এবং পরীক্ষামূলক পরিমাপ করা হয়েছিল। বাল্কের ল্যাটিস প্যারামিটার সংকুচিত ও প্রসারিত করে ম্যাগনেটোস্ট্রিক্টিভ আচরণ মূল্যায়ন করা হয়েছিল। ফলাফলগুলি দুটি থার্মোডাইনামিক্যালি স্থিতিশীল পৃষ্ঠতল, 1x1 এবং 3x1 পুনর্গঠনকে... | bn |
The ejected material at the binary neutron star merger GW 170817 was confirmed as a kilonova by UV, optical, and IR observations. This event provides a unique opportunity to investigate the particle acceleration at a mildly relativistic shock propagating in the circumbinary medium. In this paper, we simulate the nonthe... | İkili nötron yıldızı birleşmesi GW 170817'de fırlatılan madde, UV, optik ve kızılötesi gözlemlerle bir kilonova olarak doğrulanmıştır. Bu olay, ikili yıldız ortamında yayılan hafifçe göreli şokta parçacık hızlandırmasını incelemek için benzersiz bir fırsat sunar. Bu çalışmada, kilonova atıklarının oluşturduğu şok taraf... | tr |
Data augmentation have been intensively used in training deep neural network to improve the generalization, whether in original space (e.g., image space) or representation space. Although being successful, the connection between the synthesized data and the original data is largely ignored in training, without consider... | Ang data augmentation ay masusing ginamit sa pagsasanay ng malalim na neural network upang mapabuti ang generalization, maging sa orihinal na espasyo (halimbawa, imahe) o sa representasyong espasyo. Bagaman matagumpay, ang ugnayan sa pagitan ng mga ginawang datos at ng orihinal na datos ay malawakang iniiwala sa pagsas... | tl |
We calculate arbitrarily tight upper and lower bounds on an unconstrained control, linear-quadratic, singularly perturbed optimal control problem whose exact solution is computationally intractable. It is well known that for the aforementioned problem, an approximate solution $\bar{V}^N(\epsilon)$ can be constructed su... | Wir berechnen beliebig enge obere und untere Schranken für eine nichtgehemmte Steuerung bei einem linear-quadratischen, singulär gestörten optimalen Steuerungsproblem, dessen exakte Lösung rechentechnisch unlösbar ist. Bekanntlich kann für das oben genannte Problem eine Näherungslösung $\bar{V}^N(\epsilon)$ konstruiert... | de |
The growing role of data-driven approaches to scientific discovery has unveiled a large class of models that involve latent transformations with a rigid algebraic constraint. Three-dimensional molecule reconstruction in Cryo-Electron Microscopy (cryo-EM) is a central problem in this class. Despite decades of algorithmi... | 数据驱动的科学发现方法日益重要，揭示了一大类涉及具有严格代数约束的潜在变换的模型。冷冻电子显微镜（cryo-EM）中的三维分子重构是这类模型中的一个核心问题。尽管几十年来在算法和软件开发方面取得了进展，但对该问题的样本复杂性——即实现三维重构所需的图像数量——仍缺乏理论上的理解。本文考虑多参考对齐（MRA）这一简单模型，它捕捉了cryo-EM及相关问题中出现的统计与算法挑战的基本特征。在MRA中，一个未知信号会受到两种类型的干扰：潜在的循环移位以及更常见的加性白噪声。目标是从独立样本中以一定精度恢复该信号。我们证明，在高信噪比（SNR）下，恢复一般信号所需的观测次数与$1/\mathrm{SNR}$成正比，而在低信噪比条件下，这一数... | zh |
The TOTEM experiment has been designed to measure the total proton-proton cross section and to study the elastic and diffractive scattering at the LHC energy. The measurement requires detecting protons at distances as small as 1 mm from the beam center: TOTEM uses Roman Pots, movable beam pipe insertions, hosting silic... | TOTEM实验旨在测量质子-质子总截面，并研究LHC能量下的弹性散射和衍射散射。该测量需要探测距离束流中心仅1毫米处的质子：TOTEM采用罗马罐（Roman Pots），即可移动插入束流管道的装置，内部装有硅探测器。在LHC运行的初期阶段，罗马罐在特殊运行期间无论是缩回还是插入均未发现明显问题。然而，在LHC使用高流强束流运行时，观察到罗马罐插入过程中因阻抗引起的加热现象。为了适应LS1之后LHC预期更高的束流强度，已提出一种新型罗马罐，并对其束流耦合阻抗进行了优化设计。本文介绍了对新型罗马罐原型开展的台架阻抗测量工作。通过单线和双线测量以及探针测量，以检测可能有害的谐振模式。同时，利用CST粒子工作室对实验室装置进行了模拟，以对标... | zh |
It has been proven that transfer learning provides an easy way to achieve state-of-the-art accuracies on several vision tasks by training a simple classifier on top of features obtained from pre-trained neural networks. The goal of this work is to generate better features for transfer learning from multiple publicly av... | ได้มีการพิสูจน์แล้วว่า การเรียนรู้แบบถ่ายโอน (transfer learning) ช่วยให้สามารถบรรลุความแม่นยำระดับสูงสุดในงานด้านวิชันหลายประเภทได้อย่างง่ายดาย โดยการฝึกตัวจำแนกแบบง่ายๆ บนคุณลักษณะที่ได้จากเครือข่ายประสาทเทียมที่ผ่านการฝึกอบรมล่วงหน้าแล้ว เป้าหมายของงานวิจัยนี้คือ การสร้างคุณลักษณะที่ดีกว่าสำหรับการเรียนรู้แบบถ่ายโอน ... | th |
The objective of the present study is to develop a basic understanding of the interaction of shock waves with density inhomogeneities. We consider here the particular instance of a planar air shock impinging on a spherical water-droplet and discuss to what extent this interaction can lead to the inception of cavitation... | Ang layunin ng kasalukuyang pag-aaral ay bumuo ng pangunahing pag-unawa sa interaksyon ng mga alon ng shock sa mga hindi pare-parehong density. Isaalang-alang natin dito ang partikular na kaso ng isang planar na air shock na tumama sa isang spherical na water-droplet at talakayin kung hanggang saan maaaring magdulot an... | tl |
Keyword Spotting (KWS) plays a vital role in human-computer interaction for smart on-device terminals and service robots. It remains challenging to achieve the trade-off between small footprint and high accuracy for KWS task. In this paper, we explore the application of multi-scale temporal modeling to the small-footpr... | 关键词定位（KWS）在面向智能终端设备和服务机器人的语音人机交互中发挥着至关重要的作用。在KWS任务中，如何在小模型体积与高准确率之间实现良好权衡仍是一项挑战。本文探索了多尺度时序建模在小体积关键词定位任务中的应用。我们提出了一种多分支时序卷积模块（MTConv），该模块是一种由多个具有不同卷积核尺寸的时序卷积滤波器组成的CNN结构，能够丰富时序特征空间。此外，结合时序卷积与时序深度可分离卷积的优势，我们设计了一种面向KWS系统的时序高效神经网络（TENet）。在所提出模型的基础上，我们使用MTConv替代标准的时序卷积层，以实现更优的训练性能。而在推理阶段，MTConv可等效转换为基准卷积结构，因此与基准模型相比，不会引入额外的参... | zh |
This paper introduces the notion of $log$-regularity (or $log$-irregularity) of the boundary point $\zeta$ (possibly $\zeta=\infty$) of the arbitrary open subset $\Omega$ of the Greenian deleted neigborhood of $\zeta$ in $R^2$ concerning second order uniformly elliptic equations with bounded and measurable coefficients... | ບົດຄວາມນີ້ນຳສະເໜີແນວຄວາມຄິດຂອງ $log$-ປົກກະຕິ (ຫຼື $log$-ບໍ່ປົກກະຕິ) ຂອງຈຸດຊາຍແດນ $\zeta$ (ອາດເປັນໄປໄດ້ວ່າ $\zeta=\infty$) ຂອງຊຸດເປີດໃດໆ $\Omega$ ຂອງເຂດຊານລ້ອມທີ່ຖືກລຶບອອກຂອງ $\zeta$ ໃນ $R^2$ ທີ່ກ່ຽວຂ້ອງກັບສົມຜົນເອລິບຕິກອັນດັບສອງທີ່ມີສຳປະສິດຖາປັນຍະແລະສາມາດວັດແທກໄດ້, ຂື້ນກັບວ່າມາດຕະຖານ $log$-ຮາມໂມນິກຂອງ $\zeta$ ແມ່ນເປັນສ... | lo |
The results of combined experimental and theoretical study of substitutional and clustering effects in Bi-doped TiO2 hosts (bulk and thin-film morphologies) are presented. Bi-doping of the bulk and thin-film titanium dioxide was made with help of pulsed ion-implantation (E(Bi+) = 30 keV, D = 1 * 1017 cm-2) without post... | تُقدَّم نتائج دراسة تجريبية ونظرية مدمجة حول آثار الاستبدال والتجمع في مضيفات ثاني أكسيد التيتانيوم المشوبة بالبزموت (ذات الشكل الكتلي وشكل الأغشية الرقيقة). تم تشوب ثاني أكسيد التيتانيوم الكتلي والرقيق بأيونات البزموت باستخدام زرع الأيونات النبضي (E(Bi+) = 30 keV، D = 1 × 1017 cm-2) دون إجراء تسخين لاحق. استُخدم تحليل... | ar |
We have made observations of the four hyperfine transitions of the 2Pi(3/2), J=3/2 ground state of OH at 1612, 1665, 1667 and 1720 MHz and the related 1.6-GHz continuum emission, towards NGC 6334 using the Australia Telescope Compact Array. The observations covered all the major radio continuum concentrations aligned a... | 우리는 오스트레일리아 전파망원경 배열(ATCA)을 이용하여 NGC 6334 방향으로 OH 분자의 2Pi(3/2), J=3/2 기저 상태에서 발생하는 1612, 1665, 1667 및 1720 MHz의 네 가지 초미세 전이와 관련된 1.6GHz 연속파 방출을 관측하였다. 관측은 NGC 6334(V, A에서 F까지)의 축을 따라 정렬된 주요 전파 연속체 집광 영역 전반을 포함하였다. 우리는 일곱 개의 OH 마이저를 검출하였으며, 약한 여덟 번째 마이저의 존재 가능성도 확인하였다. 이 마이저 중 두 개는 NGC 6334-A 방향에 위치한다. 1665 및 1667 MHz에서... | ko |
E8 X E8 heterotic string and M-theory, when appropriately compactified, can give rise to realistic, N=1 supersymmetric particle physics. In particular, the exact matter spectrum of the MSSM, including three right-handed neutrino supermultiplets, one per family, and one pair of Higgs-Higgs conjugate superfields is obtai... | สตริงแบบฮีเทอโรติก E8 X E8 และทฤษฎี M เมื่อถูกทำให้มีขนาดเล็กลงอย่างเหมาะสม สามารถให้ฟิสิกส์ของอนุภาคที่สมจริงและมีซูเปอร์ซิมเมตรีระดับ N=1 ได้ โดยเฉพาะอย่างยิ่ง สเปกตรัมของอนุภาคในทฤษฎี MSSM อย่างครบถ้วน ซึ่งรวมถึงซูเปอร์มัลติเพลตของนิวตริโนมือขวาสามชุด หนึ่งชุดต่อครอบครัว และคู่ของซูเปอร์ฟิลด์ฮิกส์-ฮิกส์คอนจูเกตหนึ่ง... | th |
We have made observations of the four hyperfine transitions of the 2Pi(3/2), J=3/2 ground state of OH at 1612, 1665, 1667 and 1720 MHz and the related 1.6-GHz continuum emission, towards NGC 6334 using the Australia Telescope Compact Array. The observations covered all the major radio continuum concentrations aligned a... | Мы провели наблюдения четырех сверхтонких переходов основного состояния OH 2Pi(3/2), J=3/2 на частотах 1612, 1665, 1667 и 1720 МГц, а также связанного континуумного излучения на 1,6 ГГц в направлении NGC 6334 с помощью Компактного радиоинтерферометра Австралии. Наблюдения охватывали все основные концентрации радиоконти... | ru |
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in the $\sim$2~years between the observations allows a test of models for this ionized absorber. The absorption feature at ~0.7 keV (quasar fra... | Wir präsentieren zwei ROSAT-PSPC-Beobachtungen des strahlungsstarken, lobendominierten Quasars 3C 351, dessen Röntgenspektrum einen „ionisierten Absorber“ aufweist. Die um den Faktor 1,7 veränderte Flussdichte innerhalb von etwa 2 Jahren zwischen den Beobachtungen ermöglicht einen Test von Modellen für diesen ionisiert... | de |
We calculate arbitrarily tight upper and lower bounds on an unconstrained control, linear-quadratic, singularly perturbed optimal control problem whose exact solution is computationally intractable. It is well known that for the aforementioned problem, an approximate solution $\bar{V}^N(\epsilon)$ can be constructed su... | Kesin çözümü hesaplama açısından çözümsüz olan, kısıtsız kontrol, doğrusal-karekteristik, tekil bozulmuş optimal kontrol probleminin keyfi sıkı üst ve alt sınırlarını hesaplarız. Yukarıda bahsedilen problem için, $\bar{V}^N(\epsilon)$ gibi yaklaşık bir çözüm oluşturulabileceğini ve bu çözümün, $|V(\epsilon)-\bar{V}^N(\... | tr |
The evolved massive binary star Eta Carinae underwent eruptive mass loss events that formed the complex bi-polar Homunculus nebula harboring tens of solar masses of unusually nitrogen-rich gas and dust. Despite expectations for the presence of a significant molecular component to the gas, detections have been observati... | خضعت النجمة الثنائية الضخمة المتطورة إيتا كارينا لفقدان كتلي عنيف شكّل سديم هومونكولوس ثنائي القطب المعقد الذي يحتوي على عشرات الكتل الشمسية من الغاز والغبار الغني بشكل غير معتاد بالنيتروجين. وعلى الرغم من التوقعات بوجود مكوّن جزيئي كبير في الغاز، فقد واجهت الكشف الملاحظاتي تحديات بسبب محدودية الوصول إلى الأشعة تحت الح... | ar |
We present the syntax, semantics, and typing rules of Bull, a prototype theorem prover based on the Delta-Framework, i.e. a fully-typed lambda-calculus decorated with union and intersection types, as described in previous papers by the authors. Bull also implements a subtyping algorithm for the Type Theory Xi of Barban... | Chúng tôi trình bày cú pháp, ngữ nghĩa và các quy tắc kiểu của Bull, một hệ chứng minh định lý nguyên mẫu dựa trên Khung Delta, tức là một phép tính lambda hoàn toàn có kiểu được bổ sung thêm các kiểu hợp và giao, như đã được mô tả trong các bài báo trước đây của các tác giả. Bull cũng triển khai một thuật toán kiểm tr... | vi |
Deep learning (DL) in remote sensing has nowadays become an effective operative tool: it is largely used in applications such as change detection, image restoration, segmentation, detection and classification. With reference to synthetic aperture radar (SAR) domain the application of DL techniques is not straightforwar... | دور دراز حس کاری میں گہری سیکھنے (ڈی ایل) اب ایک موثر آپریٹو اوزار بن چکا ہے: اس کا استعمال تبدیلی کا پتہ لگانے، تصویر کی بحالی، تقسیم، تشخیص اور درجہ بندی جیسی درخواستوں میں وسیع پیمانے پر کیا جاتا ہے۔ مصنوعی اپرچر ریڈار (ایس اے آر) کے شعبے کے حوالے سے، ایس اے آر تصاویر کی غیر معمولی تشریح کی وجہ سے، خاص طور پر سپیکل ... | ur |
We study spectrum allocation for terahertz (THz) band communication (THzCom) systems, while considering the frequency and distance-dependent nature of THz channels. Different from existing studies, we explore multi-band-based spectrum allocation with adaptive sub-band bandwidth (ASB) by allowing the spectrum of interes... | Nous étudions l'allocation de spectre pour les systèmes de communication dans la bande térahertz (THzCom), en tenant compte de la nature dépendante de la fréquence et de la distance des canaux THz. Contrairement aux études existantes, nous explorons une allocation de spectre basée sur plusieurs bandes avec une largeur ... | fr |
We report high-temperature (300-1120 K) magnetization data of Fe and Fe3O4 nanoparticles embedded in multi-walled carbon nanotubes. The magnetic impurity concerntations are precisely determined by both high-energy synchrotron x-ray diffractometer and inductively coupled plasma mass spectrometer. We unambiguously show t... | Біз көпқабатты көміртегі нанотүтіктерге енгізілген Fe және Fe3O4 нанобөлшектерінің жоғары температурадағы (300-1120 K) магниттелу деректерін хабарлаймыз. Магниттік қоспалардың концентрациясы жоғары энергиялы синхротронды рентгендік дифрактометр мен индуктивті байланысқан плазмалық массалық спектрометр арқылы дәл анықта... | kk |
Profinite groups with a cyclotomic $p$-orientation are introduced and studied. The special interest in this class of groups arises from the fact that any absolute Galois group $G_{K}$ of a field $K$ is indeed a profinite group with a cyclotomic $p$-orientation $\theta_{K,p}\colon G_{K}\to\mathbb{Z}_p^\times$ which is e... | $p$-siklotomik yönelime sahip prosonlu gruplar tanıtılmış ve incelenmiştir. Bu grup sınıfına duyulan özel ilgi, her $K$ cismi için mutlak Galois grubu $G_{K}$'nin hatta Bloch-Kato özelliği taşıyan bir $p$-siklotomik yönelim $\theta_{K,p}\colon G_{K}\to\mathbb{Z}_p^\times$ ile donatılmış prosonlu grup olmasından kaynakl... | tr |
This paper investigates the impact of an applied magnetic field on the yield and hot-spot temperature of inertial confinement fusion implosions. A scaling of temperature amplification due to magnetization is shown to be in agreement with unperturbed 2-D extended-magnetohydrodynamic simulations. A perfectly spherical ho... | Tento článek zkoumá vliv aplikovaného magnetického pole na výtěžek a teplotu horké skvrny při implozích inertního udržování fúze. Ukazuje se, že škálování zesílení teploty v důsledku magnetizace je v souladu s neporušenými dvoudimenzionálními simulacemi rozšířené magnetohydrodynamiky. Předpovídá se, že dokonale kulová ... | cs |
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in the $\sim$2~years between the observations allows a test of models for this ionized absorber. The absorption feature at ~0.7 keV (quasar fra... | 우리는 X선 스펙트럼에서 '이온화 흡수체'를 보이는, 전파가 강하고 로브가 지배적인 퀘이사 3C 351에 대한 두 차례의 ROSAT PSPC 관측 결과를 제시한다. 약 2년 간격으로 관측된 플럭스의 1.7배 변화는 이 이온화 흡수체에 대한 모델들을 시험할 수 있게 해준다. 퀘이사 기준틀에서 약 0.7 keV에 위치한 흡수 특성은 두 스펙트럼 모두에서 나타나지만, 방출원의 세기—따라서 흡수체에 도달하는 이온화 플럭스—가 더 높을 때에는 광학적 깊이가 낮아지며, 이는 단순한 단일 영역 균형 광이온화 모델과 일치한다. 상세한 모델링은 이러한 일치를 정량적으로 확인시켜 준다... | ko |
The outbreak of COVID-19 led to a record-breaking race to develop a vaccine. However, the limited vaccine capacity creates another massive challenge: how to distribute vaccines to mitigate the near-end impact of the pandemic? In the United States in particular, the new Biden administration is launching mass vaccination... | Vypuknutí pandemie COVID-19 vyvolalo rekordní závod o vývoj vakcíny. Omezená kapacita výroby vakcín však představuje další obrovskou výzvu: jak distribuovat vakcíny tak, aby se zmírnil dopad pandemie v nejbližší době? Zejména v USA nová administrativa Bidena spouští masivní očkovací centra po celé zemi, čímž se nabízí ... | cs |
We introduce a class of two-parameter discrete dispersion models, obtained by combining convolution with a factorial tilting operation, similar to exponential dispersion models which combine convolution and exponential tilting. The equidispersed Poisson model has a special place in this approach, whereas several overdi... | Біз экспоненциалдық шашырау модельдеріне ұқсас, свертка мен экспоненциалды көлбеулікті біріктіруге негізделген, факториалды көлбеулік операциясын сверткамен біріктіру арқылы алынған екі параметрлі дискретті шашырау модельдерінің бір класын ұсынамыз. Бұл тәсілде тең шашыратылған Пуассон моделі ерекше орын алады, ал Нейм... | kk |
One of the important objectives of the COMPASS experiment (SPS, CERN) \cite{Abbon:2007pq} is the exploration of the transverse spin structure of the nucleon via spin dependent azimuthal asymmetries in single-hadron production in deep inelastic scattering of polarized leptons off transversely polarized targets. For this... | หนึ่งในวัตถุประสงค์ที่สำคัญของการทดลอง COMPASS (SPS, CERN) \cite{Abbon:2007pq} คือ การศึกษาโครงสร้างสปินตามแนวขวางของนิวคลีออนผ่านความไม่สมมาตรเชิงมุมที่ขึ้นกับสปิน ในการผลิตฮาดรอนเดี่ยวจากการกระเจิงยืดหยุ่นเชิงลึกของลิปตอนที่มีโพลาไรเซชัน บนเป้าหมายที่มีโพลาไรเซชันตามแนวขวาง เพื่อวัตถุประสงค์นี้ การทดลองชุดหนึ่งได้ดำเ... | th |
Profinite groups with a cyclotomic $p$-orientation are introduced and studied. The special interest in this class of groups arises from the fact that any absolute Galois group $G_{K}$ of a field $K$ is indeed a profinite group with a cyclotomic $p$-orientation $\theta_{K,p}\colon G_{K}\to\mathbb{Z}_p^\times$ which is e... | 순환형 $p$-방향을 갖는 사유한군들이 도입되어 연구된다. 이와 같은 군들의 클래스에 대한 특별한 관심은 임의의 체 $K$의 절대 갈루아 군 $G_{K}$가 실제로 순환형 $p$-방향 $\theta_{K,p}\colon G_{K}\to\mathbb{Z}_p^\times$을 갖는 사유한군이며, 더 나아가 블록-카토 성질을 만족한다는 사실에서 비롯된다. 체 $K$가 원시 $p$-제곱근을 포함할 경우, 그 최대 사-$p$ 몫군 $G_{K}(p)$에 대해서도 같은 성질이 성립한다. 블록-카토 성질을 갖는 순환형 $p$-방향을 가진 사유한군들(또는 사-$p$ 군들)의 클래스는... | ko |
Sequential data is being generated at an unprecedented pace in various forms, including text and genomic data. This creates the need for efficient compression mechanisms to enable better storage, transmission and processing of such data. To solve this problem, many of the existing compressors attempt to learn models fo... | Sıralı veriler, metin ve genomik veriler dahil olmak üzere çeşitli biçimlerde benzersiz bir hızla üretilmektedir. Bu durum, bu tür verilerin daha iyi depolanması, iletilmesi ve işlenmesi için etkili sıkıştırma mekanizmalarına duyulan ihtiyacı ortaya çıkarmaktadır. Bu sorunu çözmek amacıyla, mevcut sıkıştırıcılardan bir... | tr |
The extensive span of the Sagittarius (Sgr) stream makes it a promising tool for studying the Milky Way gravitational potential. Characterizing its stellar kinematics can constrain halo properties and provide a benchmark for the Cold Dark Matter galaxy formation paradigm. Accurate models of the disruption dynamics of t... | 人马座（Sgr）星流的广泛分布使其成为研究银河系引力势的有力工具。刻画其恒星运动学特征可对银河系晕的性质施加限制，并为冷暗物质星系形成理论范式提供基准。要有效利用这一工具，必须建立精确的Sgr前身天体瓦解动力学模型。我们结合解析建模与N体模拟，构建了一个新的Sgr轨道及其恒星星流模型。与以往模型不同，我们模拟了Sgr前身天体自约80亿年前首次穿越银河系晕的维里半径以来的完整下落轨迹。通过对初始相空间条件参数空间的探索，我们对Sgr前身天体的角动量施加了严格的限制。我们最优拟合的模型首次准确再现了在银河系晕中距离100千秒差距处所探测到的星流残骸的三维位置和视向速度数据。除重现已测绘的星流结构外，该模拟还预测存在数条延伸至数百千秒差距... | zh |
A variant of the point defect model originally enunciated by Macdonald and co-workers is advanced and its theoretical implications for the steady state current density, barrier layer thickness and the concentration of metal vacancy at the metal/film interface are deduced. The differences between the original point defe... | មានការអភិវឌ្ឍន៍ម៉ូដែលខ្វះចន្លោះដែលបានបង្ហាញដំបូងដោយ Macdonald និងក្រុមការងាររបស់គាត់ ហើយក៏បានដកស្រង់យកផលវិបាកទ្រឹស្ដីរបស់វាចំពោះដង់ស៊ីតេចរន្តស្ថានភាពថេរ កម្រាស់ស្រទាប់រារាំង និងកំហាប់នៃចន្លោះលោហធាតុនៅចំណុចប្រទាក់រវាងលោហធាតុ/ស្រទាប់ផងដែរ។ ភាពខុសគ្នារវាងម៉ូដែលខ្វះចន្លោះដំបូង និងកំណែប្រែបច្ចុប្បន្នក៏ត្រូវបានបញ្ជាក់ដែរ។ ប៉... | km |
The results of combined experimental and theoretical study of substitutional and clustering effects in Bi-doped TiO2 hosts (bulk and thin-film morphologies) are presented. Bi-doping of the bulk and thin-film titanium dioxide was made with help of pulsed ion-implantation (E(Bi+) = 30 keV, D = 1 * 1017 cm-2) without post... | Bi ile katkılandırılmış TiO2 matrislerinde (hacim ve ince film morfolojileri) yer değiştirme ve kümelenme etkilerinin birleştirilmiş deneysel ve teorik çalışmasının sonuçları sunulmuştur. Hacim ve ince film titanyum dioksitlerin Bi ile katkılandırılması, sonradan tavlanma yapılmadan, darbeli iyon implante edilmesi yönt... | tr |
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in the $\sim$2~years between the observations allows a test of models for this ionized absorber. The absorption feature at ~0.7 keV (quasar fra... | Мы представляем два наблюдения квазара 3C 351 с сильным радиоизлучением и доминирующими лобами, выполненные с помощью ROSAT PSPC, в рентгеновском спектре которого присутствует «ионизированный поглотитель». Изменение потока в 1,7 раза за период около 2 лет между наблюдениями позволяет проверить модели данного ионизирова... | ru |
A single-mask Gas Electron Multiplier (GEM) technique overcomes the cumbersome practice of alignment of two masks and allows the production of foils with very large area as needed for the CMS muon forward region upgrade. However, the holes obtained with refinements in the single-mask technique are asymmetrically bi-con... | Jednokovová technika násobiče elektronů pomocí plynu (GEM) eliminuje zdlouhavou praxi zarovnávání dvou kovů a umožňuje výrobu fólií s velmi velkou plochou, jak je potřeba pro výstavbu přední části mionového detektoru CMS. Nicméně díry získané zdokonalením jednokovové techniky mají asymetrický bikónický tvar, na rozdíl ... | cs |
Modern observatories of ultra-high energy cosmic rays (UHECR) have collected over 10^4 events with energies above 10 EeV, whose arrival directions appear to be nearly isotropically distributed. On the other hand, the distribution of matter in the nearby Universe -- and, therefore, presumably also that of UHECR sources ... | Osservatori moderni di raggi cosmici di ultra-alta energia (UHECR) hanno raccolto oltre 10^4 eventi con energie superiori a 10 EeV, le cui direzioni di arrivo appaiono quasi isotropicamente distribuite. D'altro canto, la distribuzione della materia nell'Universo vicino – e quindi, presumibilmente, anche quella delle so... | it |
During the course of atomic transport in a host material, impurity atoms need to surmount an energy barrier driven by thermodynamic bias or at ultra-low temperatures by quantum tunneling. In the present article we demonstrate using atomistic simulations that at ultra-low temperature transient inter-layer atomic transpo... | В ходе перемещения атомов в исходном материале примесным атомам необходимо преодолеть энергетический барьер, обусловленный термодинамическим смещением или при сверхнизких температурах — квантовым туннелированием. В настоящей статье с помощью атомистического моделирования мы демонстрируем, что при сверхнизких температур... | ru |
Correlations lie at the heart of almost all scientific predictions. It is therefore of interest to ask whether there exist general limitations to the amount of correlations that can be created at a finite amount of invested energy. Within quantum thermodynamics such limitations can be derived from first principles. In ... | 相関関係は、ほぼすべての科学的予測の根幹を成している。したがって、有限の投入エネルギーで作成できる相関の量に、一般的な制限が存在するかどうかを問うことは意義深い。量子熱力学の枠組みでは、そのような制限は第一原理から導くことができる。特に、もともと相関のなかった系間で、熱的環境下において相関を確立するにはエネルギー的コストが伴うことが示される。このコストは系の次元およびエネルギー準位構造の詳細に依存し、下限を理論的に求めることができるが、これらの下限が実際に達成可能かどうかは未解決の問題である。本研究では、同一の（熱的）量子系を最適に相関させるプロセスを研究するための枠組みを提案する。この枠組みは、それぞれが対角（古典的）な周辺状態の... | ja |
We present a study of the newly discovered McNeil's nebula in Orion using the JHKs-band simultaneous observations with the near-infrared (NIR) camera SIRIUS on the IRSF 1.4m telescope. The cometary infrared nebula is clearly seen extending toward north and south from the NIR source (V1647 Orionis) that illuminates McNe... | Ipinapakita namin ang isang pag-aaral tungkol sa bagong natuklasang McNeil nebula sa Orion gamit ang sabay-sabay na mga obserbasyon sa JHKs-band na isinagawa ng SIRIUS, isang near-infrared (NIR) camera, sa IRSF 1.4m na teleskopyo. Ang cometary infrared nebula ay malinaw na nakikita na umaabot patungong hilaga at timog ... | tl |
We describe methods for proving upper and lower bounds on infinite-time averages in deterministic dynamical systems and on stationary expectations in stochastic systems. The dynamics and the quantities to be bounded are assumed to be polynomial functions of the state variables. The methods are computer-assisted, using ... | Біз детерминделген динамикалық жүйелердегі шексіз уақыт бойынша орташа мәндерге және стохастикалық жүйелердегі стационарлық күтілістерге төменгі және жоғарғы шектерді дәлелдеу әдістерін сипаттаймыз. Динамика мен шектелуі тиіс шамалар күй айнымалыларының көпмүшелік функциялары болып табылады. Әдістер компьютерлік қолдау... | kk |
Dynamical scenarios of terrestrial planets formation involve strong perturbations of the inner part of the solar system by the giant-planets, leading to enhanced impact velocities and subsequent collisional erosion. We quantitatively estimate the effect of collisional erosion on the resulting composition of Earth, and ... | Динамические сценарии формирования планет земной группы включают сильные возмущения внутренней части Солнечной системы со стороны гигантских планет, что приводит к повышению скоростей столкновений и последующему коллизионному эрозированию. Мы количественно оцениваем влияние коллизионного эрозирования на конечный состав... | ru |
We consider the form of the current-voltage curves generated when tunneling spectroscopy is used to measure the energies of individual electronic energy levels in nanometer-scale systems. We point out that the voltage positions of the tunneling resonances can undergo temperature-dependent shifts, leading to errors in s... | 我们研究了在利用隧道谱测量纳米尺度系统中单个电子能级能量时所得到的电流-电压曲线的形状。我们指出，隧道共振的电压位置可能发生依赖于温度的偏移，从而导致光谱测量误差，且该误差与温度成正比。为此，我们针对若干与实验比较密切相关的情形，求解了一组可用于描述通过离散量子态进行电子隧穿的速率方程，这些情形包括：（1）仅有一个自旋简并能级可供输运；（2）有两个自旋简并能级可供输运，且不同本征态之间的电子-电子相互作用无变化；（3）有两个自旋简并能级可供输运，但电子-电子相互作用在不同本征态之间存在变化。我们还讨论了可及能级数目为任意值的一般情况。在每种情况下，我们都分析了由量子态引起的电流台阶的电压位置、幅度和宽度。 | zh |
In the last decade many research efforts have been focused on understanding the rheology of disordered materials, and several theoretical predictions have been put forward regarding their yielding behavior. Nevertheless, not many experiments nor molecular dynamics simulations were dedicated to testing those theoretical... | 過去10年間で、無秩序な物質のレオロジーを理解するための多くの研究が行われており、それらの降伏挙動に関するいくつかの理論的予測が提唱されてきた。しかしながら、これらの理論的予測を検証する実験や分子動力学シミュレーションはそれほど多く行われていない。本研究では、コンピュータシミュレーションを用いて、2つの異なる負荷条件下における降伏転移を調査する。すなわち、標準的な単純せん断ダイナミクスと、自己推進性の高密度活性系である。活性系では、自己推進力が増加するにつれて、予想通り降伏転移が観測される。しかし、柔らかい球体パッキングの固体性が失われるいわゆる「ジャミング点」に近づくにつれて、純粋な液体状態が存在する自己推進力の範囲は消失するよう... | ja |
We propose a model for the theoretical description of a weak-link Josephson junction, in which the weak link is spin-polarized due to proximity to a ferromagnetic metal (S-(F|S)-S). Employing Usadel transport theory appropriate for diffusive systems, we show that the weak link is described within the framework of Andre... | Imungkahi namin ang isang modelo para sa teoretikal na deskripsyon ng isang mahinang-hub na Josephson junction, kung saan ang mahinang link ay spin-polarized dahil sa kalapitan sa isang ferromagnetic metal (S-(F|S)-S). Gamit ang Usadel transport theory na angkop para sa mga diffusive system, ipinapakita namin na ang ma... | tl |
The ejected material at the binary neutron star merger GW 170817 was confirmed as a kilonova by UV, optical, and IR observations. This event provides a unique opportunity to investigate the particle acceleration at a mildly relativistic shock propagating in the circumbinary medium. In this paper, we simulate the nonthe... | Il materiale espulso nella fusione di stelle di neutroni binarie GW 170817 è stato confermato come una kilonova grazie a osservazioni in ultravioletto, ottico e infrarosso. Questo evento offre un'opportunità unica per studiare l'accelerazione di particelle in un urto debolmente relativistico che si propaga nel mezzo ci... | it |
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in the $\sim$2~years between the observations allows a test of models for this ionized absorber. The absorption feature at ~0.7 keV (quasar fra... | Kami mempersembahkan dua pemerhatian ROSAT PSPC terhadap kuasar 3C 351 yang bercakap radio dan berlobus dominan, yang menunjukkan 'penyerap bercas' dalam spektrum sinar-X-nya. Perubahan fluks sebanyak faktor 1.7 dalam tempoh kira-kira 2 tahun antara pemerhatian membolehkan ujian terhadap model-model bagi penyerap berca... | ms |
We study spectrum allocation for terahertz (THz) band communication (THzCom) systems, while considering the frequency and distance-dependent nature of THz channels. Different from existing studies, we explore multi-band-based spectrum allocation with adaptive sub-band bandwidth (ASB) by allowing the spectrum of interes... | 우리는 주파수 및 거리에 따라 변화하는 특성을 고려하여 테라헤르츠(THz) 대역 통신(THzCom) 시스템의 스펙트럼 할당을 연구한다. 기존 연구와 달리, 관심 대역을 서로 다른 대역폭을 가진 하위 대역(sub-band)으로 분할할 수 있도록 허용함으로써, 적응형 하위 대역폭(ASB)을 갖는 다중 대역 기반 스펙트럼 할당을 탐색한다. 또한, 사용자가 다수의 액세스 포인트와 동시에 연결하고 통신하는 다중 접속(MC) 기반 THzCom 시스템에서 하위 대역 할당이 미치는 영향을 조사한다. 우리는 하위 대역 할당, 하위 대역폭, 최적 송신 전력 결정을 위해 스펙트럼 할당에... | ko |
Bacteria are able to respond to environmental signals by changing their rules of movement. When we take into account chemical signals in the environment, this behaviour is often called chemotaxis. At the individual-level, chemotaxis consists of several steps. First, the cell detects the extracellular signal using recep... | بیکٹیریا ماحولیاتی اشاروں کے جواب میں اپنے حرکت کے اصولوں کو تبدیل کر کے ردعمل ظاہر کر سکتے ہیں۔ جب ہم ماحول میں کیمیائی اشاروں کو مدنظر رکھتے ہیں، تو اس رویّے کو اکثر کیموٹیکسس کہا جاتا ہے۔ فردی سطح پر، کیموٹیکسس کئی مراحل پر مشتمل ہوتا ہے۔ پہلے، خلیہ اپنی جھلی پر موجود ریسیپٹرز کا استعمال کر کے خارج الخلیوی اشارہ کا ... | ur |
Optimal control problems of nonlinear delay differential equations (DDEs) are considered for which we propose a general Galerkin approximation scheme built from Koornwinder polynomials. Error estimates for the resulting Galerkin-Koornwinder approximations to the optimal control and the value function, are derived for a... | Сызықтық емес кешігуі бар дифференциалдық теңдеулердің (КДТ) оптималды басқару есептері қарастырылады, ол үшін біз Коорнвиндер көпмүшеліктерінен құрылған жалпы Галеркин жуықтау схемасын ұсынамыз. Құны функционалдарының кең класы мен сызықтық емес КДТ үшін оптималды басқару мен мән функциясына арналған пайда болған Гале... | kk |
We calculate arbitrarily tight upper and lower bounds on an unconstrained control, linear-quadratic, singularly perturbed optimal control problem whose exact solution is computationally intractable. It is well known that for the aforementioned problem, an approximate solution $\bar{V}^N(\epsilon)$ can be constructed su... | Kalkulahan namin ang arbitraryong masigla na upper at lower bounds sa isang walang limitasyong kontrol, linear-quadratic, singularly perturbed na optimal control problem na ang eksaktong solusyon ay mahirap kompyutin. Alam na rin na para sa nabanggit na problema, maaaring bumuo ng isang aproksimadong solusyon na $\bar{... | tl |
We have made observations of the four hyperfine transitions of the 2Pi(3/2), J=3/2 ground state of OH at 1612, 1665, 1667 and 1720 MHz and the related 1.6-GHz continuum emission, towards NGC 6334 using the Australia Telescope Compact Array. The observations covered all the major radio continuum concentrations aligned a... | Nagawaan kami ng mga obserbasyon sa apat na hyperfine transition ng 2Pi(3/2), J=3/2 na ground state ng OH sa 1612, 1665, 1667 at 1720 MHz at ng kaugnay na 1.6-GHz continuum emission, patungo sa NGC 6334 gamit ang Australia Telescope Compact Array. Ang mga obserbasyon ay sumakop sa lahat ng pangunahing radio continuum n... | tl |
V2O3 is the prototype system for the Mott transition, one of the most fundamental phenomena of electronic correlation. Temperature, doping or pressure induce a metal to insulator transition (MIT) between a paramagnetic metal (PM) and a paramagnetic insulator (PI). This or related MITs have a high technological potentia... | V2O3 مٹٹ کے تبادلے کے لیے نمونہ نظام ہے، جو الیکٹرانک تعلق کی سب سے بنیادی تظاہر میں سے ایک ہے۔ درجہ حرارت، ڈوپنگ یا دباؤ ایک پیرامیگنیٹک دھات (PM) اور ایک پیرامیگنیٹک عایق (PI) کے درمیان دھات سے عایق تک تبدیلی (MIT) پیدا کرتے ہیں۔ اس یا متعلقہ MITs کی دیگر چیزوں کے علاوہ اسمارٹ ونڈوز اور فیلڈ ایفیکٹ ٹرانزسٹرز کے لیے ٹ... | ur |
The results of combined experimental and theoretical study of substitutional and clustering effects in Bi-doped TiO2 hosts (bulk and thin-film morphologies) are presented. Bi-doping of the bulk and thin-film titanium dioxide was made with help of pulsed ion-implantation (E(Bi+) = 30 keV, D = 1 * 1017 cm-2) without post... | Iniharap ang mga resulta ng pinagsamang eksperimental at teoretikal na pag-aaral ng mga epekto ng pagpapalit at pagpupulong (clustering) sa mga Bi-doped na TiO2 host (bulk at thin-film na morpolohiya). Ang Bi-doping sa bulk at thin-film na titanium dioxide ay isinagawa gamit ang pulsed ion-implantation (E(Bi+) = 30 keV... | tl |
The field of medical diagnostics contains a wealth of challenges which closely resemble classical machine learning problems; practical constraints, however, complicate the translation of these endpoints naively into classical architectures. Many tasks in radiology, for example, are largely problems of multi-label class... | Oblast lékařské diagnostiky obsahuje množství výzev, které se velmi podobají klasickým problémům strojového učení; praktická omezení však komplikují přímý převod těchto úloh do klasických architektur. Mnoho úloh v radiologii jsou například především problémy víceoznačkové klasifikace, při nichž jsou lékařské snímky vyh... | cs |
We calculate arbitrarily tight upper and lower bounds on an unconstrained control, linear-quadratic, singularly perturbed optimal control problem whose exact solution is computationally intractable. It is well known that for the aforementioned problem, an approximate solution $\bar{V}^N(\epsilon)$ can be constructed su... | Kami mengira batas atas dan bawah yang sewenang-wenang ketat bagi kawalan tanpa kekangan, masalah kawalan optimum gangguan singular kuadratik linear yang penyelesaian tepatnya sukar dikira secara komputasi. Sudah diketahui umum bahawa bagi masalah yang dinyatakan di atas, satu penyelesaian anggaran $\bar{V}^N(\epsilon)... | ms |
We present a re-parameterization of vector autoregressive moving average (VARMA) models that allows estimation of parameters under the constraints of causality and invertibility. The parameter constraints associated with a causal invertible VARMA model are highly complex. Currently there are no procedures that can main... | Ipinapakita namin ang isang re-parameterisasyon ng mga modelo ng vector autoregressive moving average (VARMA) na nagbibigay-daan sa pagtataya ng mga parameter sa ilalim ng mga paghihigpit ng kakayahang magdulot at mabaligtad. Ang mga paghihigpit sa parameter na kaugnay ng isang nakakapagdulot at mabaligtad na VARMA mod... | tl |
Multiple imputation is a well-established general technique for analyzing data with missing values. A convenient way to implement multiple imputation is sequential regression multiple imputation (SRMI), also called chained equations multiple imputation. In this approach, we impute missing values using regression models... | ການຈູດຊີ້ມູນຫຼາຍແມ່ນເຕັກນິກທົ່ວໄປທີ່ໄດ້ຮັບການຮັບຮອງມາດົນແລ້ວສຳລັບການວິເຄາະຂໍ້ມູນທີ່ມີຄ່າຂາດຫາຍ. ວິທີໜຶ່ງທີ່ສະດວກໃນການຈັດຕັ້ງປະຕິບັດການຈູດຊີ້ມູນຫຼາຍແມ່ນການຈູດຊີ້ມູນຫຼາກຜ່ານການຖອດຖອຍຕາມລຳດັບ (SRMI), ເຊິ່ງເອີ້ນອີກຢ່າງໜຶ່ງວ່າ ການຈູດຊີ້ມູນຫຼາກດ້ວຍສົມຜົນຕໍ່ເນື່ອງ. ໃນວິທີການນີ້, ພວກເຮົາຈູດຊີ້ຄ່າຂາດຫາຍໂດຍໃຊ້ແບບຈຳລອງການຖອດຖອຍສຳ... | lo |
The ultra-long period Cepheids (ULPCs) are classical Cepheids with pulsation periods exceeding $\approx 80$ days. The intrinsic brightness of ULPCs are ~1 to ~3 mag brighter than their shorter period counterparts. This makes them attractive in future distance scale work to derive distances beyond the limit set by the s... | اولٹرا لمبی مدت والے سیفیڈز (ULPCs) وہ کلاسیکی سیفیڈز ہیں جن کی دَلَک (پلسیشن) مدت تقریباً 80 دنوں سے زیادہ ہوتی ہے۔ ULPCs کی ذاتی روشنی ان کے مختصر مدت والے ہم منصبوں کے مقابلے میں تقریباً 1 سے تقریباً 3 میگ بہتر ہوتی ہے۔ اس وجہ سے وہ آنے والے فاصلہ اسکیل کے کام میں مختصر مدت والے سیفیڈز کی حد سے آگے کے فاصلوں کو معلو... | ur |
Statistical spoken dialogue systems have the attractive property of being able to be optimised from data via interactions with real users. However in the reinforcement learning paradigm the dialogue manager (agent) often requires significant time to explore the state-action space to learn to behave in a desirable manne... | 统计型口语对话系统具有一个显著优势，即能够通过与真实用户的交互，利用数据进行优化。然而，在强化学习范式中，对话管理器（智能体）通常需要大量时间探索状态-动作空间，才能学会以理想的方式进行行为。当系统通过与真实用户在线训练时，学习成本高昂，这一问题尤为突出。奖励塑形是解决此类问题的一种有前景的技术。本文研究了三种循环神经网络（RNN）方法，用于在主要（任务导向的）环境反馈之外提供奖励塑形信息。这些RNN在由模拟用户生成的对话回报数据上进行训练，试图将整个对话的总体评估反向传递至每一轮对话层面，从而更快地引导智能体趋向良好行为。在模拟用户和真实用户的场景中，这些RNN均被证明能够加快策略学习速度。重要的是，它们不需要事先了解用户的目标。 | zh |
Profinite groups with a cyclotomic $p$-orientation are introduced and studied. The special interest in this class of groups arises from the fact that any absolute Galois group $G_{K}$ of a field $K$ is indeed a profinite group with a cyclotomic $p$-orientation $\theta_{K,p}\colon G_{K}\to\mathbb{Z}_p^\times$ which is e... | Ang mga profinite na grupo na may cyclotomic na $p$-orientation ay ipinakilala at pinag-aralan. Ang partikular na interes sa klase ng mga grupong ito ay nagmumula sa katotohanang ang anumang ganap na Galois na grupo $G_{K}$ ng isang field na $K$ ay talagang isang profinite na grupo na may cyclotomic na $p$-orientation ... | tl |
We present the results of a study of a sample of 375 Extremely Red Galaxies (ERGs) in the Phoenix Deep Survey, 273 of which constitute a subsample which is 80% complete to K_s = 18.5 over an area of 1160 arcmin^2. The angular correlation function for ERGs is estimated, and the association of ERGs with faint radio sourc... | ພວກເຮົານຳສະເໜີຜົນໄດ້ຮັບຂອງການສຶກສາຕົວຢ່າງຈຳນວນ 375 ກາແລກຊີທີ່ມີສີແດງຈັດ (ERGs) ໃນການສຳຫຼວດ Phoenix Deep, ໃນຈຳນວນນີ້ 273 ກາແລກຊີປະກອບເປັນຕົວຢ່າງຍ่อยທີ່ມີຄວາມສົມບູນ 80% ເຖິງ K_s = 18.5 ໃນເຂດພື້ນທີ່ 1160 ລິດສອງ. ພວກເຮົາປະເມີນຟັງຊັ່ນການເຊື່ອມໂຍງແບບມຸມຂອງ ERGs ແລະ ສຳຫຼວດຄວາມເຊື່ອມຂອງ ERGs ກັບແຫຼ່ງຂໍ້ມູນວິທະຍຸທີ່ມີຄວາມສວ່າງຕ... | lo |
Tractography is typically performed for each subject using the diffusion tensor imaging (DTI) data in its native subject space rather than in some space common to the entire study cohort. Despite performing tractography on a population average in a normalized space, the latter is considered less favorably at the \emph{... | La tractografia viene tipicamente eseguita per ogni soggetto utilizzando i dati di imaging mediante risonanza magnetica a diffusione (DTI) nello spazio nativo del soggetto piuttosto che in uno spazio comune a tutto il gruppo di studio. Nonostante l'esecuzione della tractografia su una media di popolazione in uno spazio... | it |
The mechanism of negative group delay (NGD) is used to understand the anticipatory capability of a retina. Experiments with retinas from bull frogs are performed to compare with the predictions of the NGD model. In particulars, whole field stochastic stimulation with various time correlations are used to probe anticipa... | Ang mekanismo ng negatibong delay ng grupo (NGD) ay ginagamit upang maunawaan ang kakayahang umaagapay ng isang retina. Isinagawa ang mga eksperimento sa mga retina mula sa mga baka na palaka upang ikumpara sa mga hula ng modelo ng NGD. Partikular, ang stochastic stimulation sa buong larangan na may iba't ibang oras ng... | tl |
We observed a nearby radio galaxy, the Centaurus A (Cen A), three times with Suzaku in 2009, and measured the wide-band X-ray spectral variability more accurately than the previous measurements. The Cen A was in the active phase in 2009, and the flux became higher by a factor of 1.5--2.0 and the spectrum became harder ... | Мы наблюдали близкую радиогалактику Центавр A (Cen A) три раза с помощью спутника Suzaku в 2009 году и измерили вариабельность широкополосного рентгеновского спектра с более высокой точностью по сравнению с предыдущими измерениями. В 2009 году Центавр A находился в активной фазе: поток увеличился в 1,5–2,0 раза, а спек... | ru |
We study spectral theory for bounded Borel subsets of $\br$ and in particular finite unions of intervals. For Hilbert space, we take $L^2$ of the union of the intervals. This yields a boundary value problem arising from the minimal operator $\Ds = \frac1{2\pi i}\frac{d}{dx}$ with domain consisting of $C^\infty$ functio... | 我々は、実数直線 $\br$ 上の有界ボレル部分集合、特に有限個の区間の和集合についてのスペクトル理論を研究する。ヒルベルト空間としては、これらの区間の和集合上の $L^2$ 空間を採用する。これにより、端点で消失する $C^\infty$ 関数からなる定義域を持つ最小作用素 $\Ds = \frac{1}{2\pi i}\frac{d}{dx}$ から生じる境界値問題が得られる。我々は、区間の和集合の幾何的配置と、対応する $\Ds$ の自己随伴拡張および局所平行移動の単位ユニタリ群に関するスペクトル理論との間の詳細な相互関係を提示する。散乱理論および量子グラフから動機づけられているものの、本研究の焦点は、フーグレードのスペクトル... | ja |
We study spectral theory for bounded Borel subsets of $\br$ and in particular finite unions of intervals. For Hilbert space, we take $L^2$ of the union of the intervals. This yields a boundary value problem arising from the minimal operator $\Ds = \frac1{2\pi i}\frac{d}{dx}$ with domain consisting of $C^\infty$ functio... | Estudamos a teoria espectral para subconjuntos borelianos limitados de $\br$ e, em particular, uniões finitas de intervalos. Para o espaço de Hilbert, tomamos $L^2$ da união dos intervalos. Isso gera um problema de valor de contorno proveniente do operador mínimo $\Ds = \frac{1}{2\pi i}\frac{d}{dx}$, cujo domínio consi... | pt |
We calculate the octet baryon magnetic moments in covariant baryon chiral perturbation theory with the extended-on-mass-shell renormalization scheme up to next-to-next-to-leading order. At this order, there are nine low-energy constants, which cannot be uniquely determined by the seven experimental data alone. We propo... | ພວກເຮົາຄິດໄລ່ຄ່າສະເລ່ຍຂອງອິນດຸກຊັ່ນຂອງບາຣິໂອນອອກເຕດໃນທິດສະດີການລຶບລ້ຳຂອງບາຣິໂອນແບບຄອວາເລຍນທີ່ໃຊ້ວິທີການປັບຄ່າຄືນໃໝ່ແບບ extended-on-mass-shell ເຖິງລະດັບຖັດໄປອີກສອງລະດັບ. ໃນລະດັບນີ້, ມີຄ່າຄົງທີ່ພະລັງງານຕ່ຳຈຳນວນເກົ້າຄ່າ, ທີ່ບໍ່ສາມາດຖືກກຳນົດຢ່າງເປັນເອກະລັກໄດ້ພຽງແຕ່ຈາກຂໍ້ມູນການທົດລອງເຈັດຊຸດ. ພວກເຮົາຂໍເສີມຂໍ້ສະເໜີສອງວິທີເພື່... | lo |
Single particle, cryogenic electron microscopy (cryo-EM) experiments now routinely produce high-resolution data for large proteins and their complexes. Building an atomic model into a cryo-EM density map is challenging, particularly when no structure for the target protein is known a priori. Existing protocols for this... | Experimenty s jednotlivými částicemi pomocí kryoelektronové mikroskopie (cryo-EM) nyní běžně poskytují data s vysokým rozlišením pro velké proteiny a jejich komplexy. Sestavení atomového modelu do hustotní mapy z cryo-EM je náročné, zejména pokud není předem známa struktura cílového proteinu. Stávající postupy pro tent... | cs |
We theoretically explore photoassociation by Adiabatic Passage of two colliding cold ^{85}Rb atoms in an atomic trap to form an ultracold Rb_2 molecule. We consider the incoherent thermal nature of the scattering process in a trap and show that coherent manipulations of the atomic ensemble, such as adiabatic passage, a... | আমরা একটি পারমাণবিক ফাঁদে দুটি সংঘর্ষরত শীতল ^{85}Rb পরমাণুকে এডিয়াবেটিক পাসেজের মাধ্যমে আলোক-সংযোজন করে অতিশীতল Rb_2 অণু তৈরি করার তাত্ত্বিক গবেষণা করি। আমরা ফাঁদে ছড়িয়ে দেওয়া প্রক্রিয়ায় অসংগত তাপীয় প্রকৃতি বিবেচনা করি এবং দেখাই যে যদি তাপমাত্রা দ্বারা নির্ধারিত সামঞ্জস্য সময়সীমার মধ্যে এডিয়াবেটিক পাসেজের মতো... | bn |
We construct a covariant phase space for rotating weakly isolated horizons in Einstein-Maxwell-Chern-Simons theory in all (odd) $D\geq5$ dimensions. In particular, we show that horizons on the corresponding phase space satisfy the zeroth and first laws of black-hole mechanics. We show that the existence of a Killing sp... | ကျွန်ုပ်တို့သည် မတူညီသော (မမှန်သည့်) D≥5 အချုပ်အခြာများတွင် အိုင်းစတိုင်း-မက်စ်ဝယ်-ချန်း-ဆီးမ်းစ် သီအိုရီအတွင်းရှိ လှည့်ပတ်နေသော အားနည်းစွာ ခွဲထားသည့် ဟိုရိဇ်များအတွက် ကိန်းရှင်များကို အစားထိုးနိုင်သော အဆင့်အမျိုးအစားကို တည်ဆောက်ပါသည်။ အထူးသဖြင့် သက်ဆိုင်ရာ အဆင့်အမျိုးအစားအပေါ်ရှိ ဟိုရိဇ်များသည် အမှောင်ဘုံ ယန္တရား၏ သုည... | my |
Multijet cross sections at the LHC and Tevatron are sensitive to several distinct kinematic energy scales. When measuring the dijet invariant mass m_jj between two signal jets produced in association with other jets or weak bosons, m_jj will typically be much smaller than the total partonic center-of-mass energy Q, but... | LHC اور ٹیویٹرون پر ملٹی جیٹ کے کراس سیکشنز کئی مختلف کائینمیٹک توانائی اسکیلوں پر منحصر ہوتے ہیں۔ جب دو سگنل جیٹس کے درمیان دو جیٹ انویرینٹ ماس m_jj کو دیگر جیٹس یا کمزور بوسونز کے ساتھ پیدا ہونے والے عمل میں ناپا جاتا ہے، تو عام طور پر m_jj کل پارٹونک سینٹر آف ماس توانائی Q سے کہیں کم ہوتا ہے، لیکن انفرادی جیٹ ماسز m... | ur |
To understand the performance of popular density-functional theory (DFT) exchange-correlation (xc) functionals in simulations of liquid water, water monomers and dimers were extracted from a PBE simulation of liquid water and examined with coupled cluster with single and double excitations plus a perturbative correctio... | အရည်ရေကို စမ်းသပ်မှုများတွင် လူကြိုက်များသော အီလက်ထရွန်သိပ္ပံသီအိုရီ (DFT) ဖလှယ်မှု-ဆက်စပ်မှု (xc) ဖန်က်ရှင်နယ်များ၏ စွမ်းဆောင်ရည်ကို နားလည်ရန်အတွက် ရေအရည်၏ PBE စမ်းသပ်မှုမှ ရေမော်နိုမာနှင့် ဒိုင်မာများကို ထုတ်ယူပြီး တစ်လုံးတည်းနှင့် နှစ်လုံးပါ စွမ်းအင်လှိုင်းများအပေါ် အခြေခံသော ကွန်ဒင်စ်ကလပ်စတာ (coupled cluster) နှင့်... | my |
Tractography is typically performed for each subject using the diffusion tensor imaging (DTI) data in its native subject space rather than in some space common to the entire study cohort. Despite performing tractography on a population average in a normalized space, the latter is considered less favorably at the \emph{... | Traktografi biasanya dijalankan bagi setiap subjek menggunakan data pencitraan tensor resapan (DTI) dalam ruang subjek asalnya, bukan dalam ruang sepunya yang digunakan oleh keseluruhan kohort kajian. Walaupun traktografi boleh dilakukan ke atas purata populasi dalam ruang dinormalisasi, kaedah yang terakhir ini diangg... | ms |
Accurate air turbulence forecasting can help airlines avoid hazardous turbulence, guide the routes that keep passengers safe, maximize efficiency, and reduce costs. Traditional turbulence forecasting approaches heavily rely on painstakingly customized turbulence indexes, which are less effective in dynamic and complex ... | တိကျသော လေယာဥ်ပျံလေထုတုန်လှုပ်မှု ခန့်မှန်းခြင်းသည် လေကြောင်းလိုင်းများအား အန္တရာယ်ရှိသော လေထုတုန်လှုပ်မှုများကို ရှောင်ရှားရာတွင် အထောက်အကူပြုပြီး ခရီးသည်များအတွက် ဘေးကင်းသော လမ်းကြောင်းများကို ညွှန်ကြားပေးကာ ထိရောက်မှုကို အမြင့်ဆုံးဖြစ်စေပြီး ကုန်ကျစရိတ်ကို လျှော့ချပေးနိုင်သည်။ ရိုးရာ လေထုတုန်လှုပ်မှု ခန့်မှန်းမှုနည်... | my |
Photonic brain-inspired platforms are emerging as novel analog computing devices, enabling fast and energy-efficient operations for machine learning. These artificial neural networks generally require tailored optical elements, such as integrated photonic circuits, engineered diffractive layers, nanophotonic materials,... | 受大脑启发的光子平台正作为新型模拟计算设备而兴起，能够为机器学习实现快速且节能的运算。这些人工神经网络通常需要定制化的光学元件，例如集成光子电路、设计的衍射层、纳米光子材料或时间延迟方案，而这些元件在训练或稳定方面存在挑战。本文提出了一种神经形态光子方案——光子极限学习机，该方案仅通过使用光学编码器和自由空间中的相干波传播即可实现。我们通过激光束的空间光调制来实现这一概念，其远场作为特征映射空间。我们在多种分类和回归任务上通过实验验证了从数据中学习的能力，所达到的准确率可与数字极限学习机相媲美。我们的研究结果揭示了一种易于训练、能耗低、可扩展且不受制造约束限制的光子机器学习装置。该方案可推广至多种光子系统，为光学数据的实时神经形态处... | zh |
In Stochastic blockmodels, which are among the most prominent statistical models for cluster analysis of complex networks, clusters are defined as groups of nodes with statistically similar link probabilities within and between groups. A recent extension by Karrer and Newman incorporates a node degree correction to mod... | В стохастических блоковых моделях, которые являются одними из наиболее распространённых статистических моделей для кластерного анализа сложных сетей, кластеры определяются как группы узлов со статистически схожими вероятностями связей внутри и между группами. Недавнее расширение модели, предложенное Карром и Ньюманом, ... | ru |
We present two ROSAT PSPC observations of the radio-loud, lobe-dominated quasar 3C 351, which shows an `ionized absorber' in its X-ray spectrum. The factor 1.7 change in flux in the $\sim$2~years between the observations allows a test of models for this ionized absorber. The absorption feature at ~0.7 keV (quasar fra... | Röntgen spektrumunda "iyonlaşmış soğurucu" gösteren, radyo-gürültülü ve lob baskın kuarzar 3C 351'in iki ROSAT PSPC gözlemini sunuyoruz. Gözlemler arasındaki yaklaşık 2 yıl süresince akımda görülen 1.7 faktörlü değişim, bu iyonlaşmış soğurucu için modellerin sınanmasına olanak sağlıyor. ~0.7 keV'deki soğurma özelliği (... | tr |
Numerical software are widely used in safety-critical systems such as aircrafts, satellites, car engines and so on, facilitating dynamics control of such systems in real time, it is therefore absolutely necessary to verify their correctness. It is a long standing challenge to guarantee verified properties of numerical ... | تُستخدم البرمجيات العددية على نطاق واسع في الأنظمة الحرجة من حيث السلامة مثل الطائرات والقمر الصناعي ومحركات السيارات وما إلى ذلك، حيث تسهّل التحكم في ديناميكيات هذه الأنظمة في الزمن الحقيقي، وبالتالي فإن التحقق من صحتها أمر ضروري تمامًا. ويشكل ضمان أن خصائص البرمجيات العددية التي تم التحقق منها تُحقَّق بالفعل في سلوكه... | ar |
Modern observatories of ultra-high energy cosmic rays (UHECR) have collected over 10^4 events with energies above 10 EeV, whose arrival directions appear to be nearly isotropically distributed. On the other hand, the distribution of matter in the nearby Universe -- and, therefore, presumably also that of UHECR sources ... | Современные обсерватории сверхвысоких энергий космических лучей (UHECR) зарегистрировали более 10^4 событий с энергиями выше 10 ЭэВ, направления прихода которых оказываются почти изотропно распределёнными. С другой стороны, распределение вещества в ближайшей Вселенной — и, следовательно, предположительно также распреде... | ru |
Modern observatories of ultra-high energy cosmic rays (UHECR) have collected over 10^4 events with energies above 10 EeV, whose arrival directions appear to be nearly isotropically distributed. On the other hand, the distribution of matter in the nearby Universe -- and, therefore, presumably also that of UHECR sources ... | Aşırı yüksek enerjili kozmik ışınların (UHECR) modern gözlemevleri, geliş yönleri neredeyse izotropik dağılmış 10 EeV'un üzerinde enerjiye sahip 10^4'ten fazla olay toplamıştır. Öte yandan, yakın evrendeki madde dağılımı -ve dolayısıyla muhtemelen UHECR kaynaklarının dağılımı da- homojen değildir. Bu durumun, UHECR gel... | tr |
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