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2023-03-01 | Evidence of the IoT is expanding the number of connected devices, including UAVs. UAVs overcome the flaws in the physical IoT infrastructure already in place. Low-altitude views are expected to be dominant swiftly in urban areas. In a short period of time, they are able to cover a large area and distribute goods and in... | Internet of Low-Altitude UAVs (IoLoUA): a methodical modeling on integration of Internet of “Things” with “UAV” possibilities and tests | 10.1007/s10462-022-10225-1 |
2023-03-01 | Crystals of Sodium Laurate, Lauric Acid (NaLLA) were obtained and the structure was determined by single-crystal X-ray diffraction. The new crystal form is monoclinic of space group P2 1 /c. The asymmetric unit contains two independent laurate molecules whose carboxylic/carboxylate groups are linked by a low barrier O-... | Case of Charge-Assisted Hydrogen Bonding in the Crystal Structure of Sodium Laurate, Lauric Acid | 10.1007/s10870-022-00946-0 |
2023-03-01 | Low-phosphorus stress significantly impacts the development of maize kernels. In this study, the phosphor efficient maize genotype 082 and phosphor deficient maize genotype Ye107, were used to construct an F 2:3 population. QTL mapping was then employed to determine the genetic basis of differences in the maize kernel ... | QTL mapping of maize (Zea mays L.) kernel traits under low-phosphorus stress | 10.1007/s12298-023-01300-0 |
2023-03-01 | Objective The current study aimed to estimate prevalence of malaria infection, especially sub-patent infection, in pregnant women residing in high malaria-endemic, hard-to-reach pockets of the Indian state of Odisha; and also measure its impact on birth-weight of their new-borns. Method A time-to-event analysis of pros... | Impact of Sub-patent Malaria During Pregnancy on Birth-Weight in Odisha, India: Time-to-Event Analysis of Prospective Longitudinal Follow-Up of a Survey | 10.1007/s44197-022-00082-0 |
2023-03-01 | Decreased light conditions due to cloud cover and smog pollution severely limit crop cultivation and production. Reduced light interception coupled with irregular rainfall caused damage to major crops’ yield at their critical growth stages, especially at the post-silking stage in maize ( Zea mays L.). This study was co... | Physiological Mechanisms of Grain Yield Loss Under Combined Drought and Shading Stress at the Post-silking Stage in Maize | 10.1007/s42729-022-01108-z |
2023-03-01 | The Upper Cretaceous Ilam Formation in southwest Iran was studied in order to provide a better understanding of the palaeoenvironments that lead to the deposition of heterogeneous carbonate rocks. This formation is an important hydrocarbon reservoir of the Bangestan Group in the Zagros Basin and the Abadan Plain. The I... | Variation of geochemical data and sedimentary characteristics in the Upper Cretaceous Ilam Formation, a case study from southwest Iran | 10.1007/s12549-022-00532-4 |
2023-03-01 | The rhizosphere microbiome plays a vital role in crop growth and adaptation. However, the effects of rice genotype, nitrogen (N) fertilization, and their interactions on the rhizosphere bacterial communities in low fertility soil remain poorly understood. In this study, a two-factor field experiment was performed in ne... | Responses of rhizosphere bacterial communities in newly reclaimed mudflat paddies to rice genotype and nitrogen fertilizer rate | 10.1007/s11356-022-25020-2 |
2023-03-01 | Genomic selection (GS) is poised to revolutionize eucalypt tree improvement by shortening breeding cycles and increasing selection intensities. This could be particularly valuable for alternative, non-mainstream Eucalyptus species that are still in the initial stages of breeding. Eucalyptus benthamii is important for i... | Genomic prediction of growth and wood quality traits in Eucalyptus benthamii using different genomic models and variable SNP genotyping density | 10.1007/s11056-022-09924-y |
2023-03-01 | The paper presents the results of studies of argon-nitrogen plasma of a non-self-sustained low-pressure glow discharge with a hollow cathode by optical emission spectrometry. The plasma was generated in a mixture of Ar–N 2 gases with an argon percentage from 0 to 100% at a total pressure of 1 Pa. The discharge current ... | Influence of the Percentage of Argon in the Ar–N2 Gas Mixture on the Relative Number of Ar+, N2+, N, and N+ Particles in the Plasma of a Non-Self-Sustained Low-Pressure Glow Discharge With a Hollow Cathode | 10.1007/s11182-023-02844-0 |
2023-03-01 | These are the first and so far only records of a sailfin velifer fish from the Lower Oligocene of the Unterfeld (“Frauenweiler”) clay pit at Rauenberg (S Germany), and only the fourth fossil skeletal finds of this group worldwide. The new genus and species † Oechsleria unterfeldensis is described in detail, diagnosed, ... | Oechsleria unterfeldensis, gen. et sp. nov., a sailfin velifer fish (Lampridiformes, Veliferidae) from the Oligocene of the Unterfeld (“Frauenweiler”) clay pit | 10.1007/s12542-022-00633-7 |
2023-03-01 | China has become the largest energy producer and consumer in the world. Its carbon emissions account for 80% of its total carbon emissions, while the carbon emissions caused by energy consumption in the power industry account for more than 50%. To ensure that the 2030 carbon-peak and 2060 carbon–neutral targets are ach... | Low-carbon transformation planning of China’s power energy system under the goal of carbon neutrality | 10.1007/s11356-023-25279-z |
2023-03-01 | Purpose To analyze the level of growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) in follicle fluid (FF) and granulosa cells (GCs) derived from young patients with low prognosis for in vitro fertilization and embryo transfer (IVF-ET) treatment. Methods A prospective cohort study was carri... | Decreased GDF9 and BMP15 in follicle fluid and granulosa cells and outcomes of IVF-ET among young patients with low prognosis | 10.1007/s10815-023-02723-0 |
2023-03-01 | Nitrogen pollution in groundwater is an environmental issue of global concern. Identifying nitrogen pollution sources and determining migration and transformation processes are the major ways to prevent and control nitrogen pollution in the groundwater on a regional scale. In this study, groundwater in the lower Wei Ri... | Identification of nitrogen pollution sources and transport transformation processes in groundwater of different landforms using C, H, N, and O isotope techniques: an example from the lower Weihe River | 10.1007/s11356-022-24337-2 |
2023-03-01 | The results of experimental studies of analogs of columnar red sprites are presented. As is known, the development of sprites is due to the formation of cylindrical streamers at an altitude of 50–100 km from sea level. The velocities of a plasma diffuse jet (PDJ) obtained in a laboratory, which is an analog of a sprite... | Cylindrical Streamers Formed in Air and Nitrogen at Low Pressures | 10.1007/s11182-023-02856-w |
2023-03-01 | Purpose To evaluate the effect of an anti-inflammatory compared to a low-calorie diet on the physical and mental health of patients with knee OA. Methods In this randomized parallel clinical trial, participants were selected among overweight and obese women aged 40 years or older with mild to moderate OA. Sixty women w... | The effect of an anti-inflammatory in comparison with a low caloric diet on physical and mental health in overweight and obese women with knee osteoarthritis: a randomized clinical trial | 10.1007/s00394-022-03017-4 |
2023-03-01 | The scientific and accurate prediction of suspended sediment concentrations is of great importance for river management in the lower reaches of the Yellow River and for the scheduling of water conservancy projects in the upper and middle reaches. In order to solve the influence of the non-linear and non-smooth characte... | Prediction of suspended sediment concentration in the lower Yellow River in China based on the coupled CEEMD-NAR model | 10.1007/s11356-022-24406-6 |
2023-02-28 | Understanding the dynamics of the lithosphere relies heavily on the scale-dependent rheology of minerals. While quartz, feldspar, and phyllosilicates are the key phases to govern the rheology of the crust and tectonic margins, olivine and other mafic phases control the same in the upper mantle. Phase transition, solid-... | Nanomechanics of minerals: understandings and developments through instrumented nanoindentation techniques | 10.1007/s00269-023-01235-8 |
2023-02-27 | In this study, the low velocity impact behavior of glass fiber reinforced epoxy (GFRE) composites with the addition of organic intercalated nanoclay and spheroidal powder of polyamide nanoparticles individually and together were investigated experimentally. The weight ratio of the additives was 2% of the epoxy resin-ha... | An experimental study on low velocity impact characteristics of glass fiber reinforced epoxy nanocomposites | 10.1007/s12046-023-02090-7 |
2023-02-27 | We investigate a numerical behavior of robust deterministic optimal control problem subject to a convection-diffusion equation containing uncertain inputs. Stochastic Galerkin approach, turning the original optimization problem containing uncertainties into a large system of deterministic problems, is applied to discre... | Stochastic discontinuous Galerkin methods for robust deterministic control of convection-diffusion equations with uncertain coefficients | 10.1007/s10444-023-10015-5 |
2023-02-25 | The need for high-performance gas sensors is driven by concerns over indoor and outdoor air quality, and industrial gas leaks. Due to their structural diversity, vast surface area, and geometric tunability, metal oxides show significant potential for the development of gas sensing systems. Despite the fact that several... | Recovery of off-state stress-induced damage in FET-type gas sensor using self-curing method | 10.1186/s11671-023-03801-z |
2023-02-25 | The high-elasticity bottoms applying gradual pressurization to the blood vessels of the lower extremities simultaneously assisting to both prevention and treatment of multiple health conditions such as varicose veins. Medical compression stockings are classified as medical supplies, and there is a clear standard on mag... | Clothing pressure analysis of commercial women's leggings for applying medical compression classes | 10.1186/s40691-022-00324-6 |
2023-02-25 | Background Residents of informal settlements in Sub-Sahara Africa (SSA) are vulnerable to the health impacts of climate change. Little is known about the knowledge, attitudes and practices (KAP) of inhabitants of informal settlements in SSA regarding climate change and its health impacts. The aim of this study was to i... | Climate change and health risks in Mukuru informal settlement in Nairobi, Kenya – knowledge, attitudes and practices among residents | 10.1186/s12889-023-15281-y |
2023-02-24 | Pure and Mg-substituted AgCaVO 4 compounds were explored using the conventional solid-state sintering method and their microwave dielectric properties were investigated. The XRD patterns indicate all samples belong to an orthorhombic structure with a space group of Pmna. The pure AgCaVO 4 ceramic gives the dielectric p... | Low-loss and ultra-low sintering temperature ceramics of AgCa1−xMgxVO4 (x = 0–0.09) for microwave applications | 10.1007/s00339-023-06501-8 |
2023-02-22 | Background Citizen science as an approach to merge society and science is not a new paradigm. Yet it is not common in public health, epidemiology, or medical sciences. SMARAGD (Sensors for Measuring Aerosols and ReActive Gases to Deduce health effects) assesses air pollution at participants’ homes or workplaces in Colo... | Merging citizen science with epidemiology: design of a prospective feasibility study of health events and air pollution in Cologne, Germany | 10.1186/s40814-023-01250-0 |
2023-02-21 | This paper presents an assessment of the start-up performance of aerobic granular sludge (AGS) for the treatment of low-strength (chemical oxygen demand, COD < 200 mg/L) domestic wastewater by the application of a diatomite carrier. The feasibility was evaluated in terms of the start-up period and stability of the aero... | Aerobic granular sludge development using diatomite for low-strength wastewater treatment | 10.1007/s10661-023-11028-9 |
2023-02-21 | Background Globally, millions of patients suffer from regenerative deficiencies, such as refractory wound healing, which is characterized by excessive inflammation and abnormal angiogenesis. Growth factors and stem cells are currently employed to accelerate tissue repair and regeneration; however, they are complex and ... | Turning gray selenium and sublimed sulfur into a nanocomposite to accelerate tissue regeneration by isothermal recrystallization | 10.1186/s12951-023-01796-4 |
2023-02-20 | Background Formula-fed infants are at increased risk of infections. Due to the cross-talk between the mucosal systems of the gastrointestinal and respiratory tracts, adding synbiotics (prebiotics and probiotics) to infant formula may prevent infections even at distant sites. Infants that were born full term and weaned ... | Targeting the gut-lung axis by synbiotic feeding to infants in a randomized controlled trial | 10.1186/s12915-023-01531-3 |
2023-02-20 | To investigate the effect of low-level laser therapy (LLLT) on orthodontic tooth movement during maxillary molar distalization over a 12-week observation period. Twenty patients were enrolled in this clinical trial. On the 0th, 3rd, 7th, 14th, 21st, 42nd, and 63rd days following the initial activation of the distalizat... | Effect of low-level laser therapy on orthodontic tooth movement during miniscrew-supported maxillary molar distalization in humans: a single-blind, randomized controlled clinical trial | 10.1007/s10103-023-03736-y |
2023-02-18 | Physical separation of the organic and inorganic constituents in coal mostly depends on the degree of association and the manner of their distribution. The liberation of macerals and minerals in coal holds a vital role in the effectiveness of coal-washing technologies. The intent of the study is to observe the effect o... | Influence of particle size on maceral and mineral distribution in Lower Gondwana coals of India | 10.1007/s12517-023-11286-4 |
2023-02-17 | Background Low temperatures are known to limit the growth and geographical distribution of poplars. Although some transcriptomic studies have been conducted to explore the response of poplar leaves to cold stress, only a few have comprehensively analyzed the effects of low temperature on the transcriptome of poplars an... | Transcriptome analysis of Populus × canadensis ‘Zhongliao1’ in response to low temperature stress | 10.1186/s12864-023-09187-7 |
2023-02-16 | Low phosphorus (P) is one of the limiting factors in sustainable cotton production. However, little is known about the performance of contrasting low P tolerant cotton genotypes that might be a possible option to grow in low P condition. In the current study, we characterized the response of two cotton genotypes, Jimia... | Phosphorus and carbohydrate metabolism contributes to low phosphorus tolerance in cotton | 10.1186/s12870-023-04100-6 |
2023-02-15 | We derive the necessary and sufficient conditions for a 2 d QCD theory of massless gluons and left and right chiral quarks in arbitrary representations of a gauge group G to develop a mass gap. These results are obtained from spectral properties of the lightcone and temporal QCD Hamiltonians. The conditions can be expl... | Infrared phases of 2d QCD | 10.1007/JHEP02(2023)157 |
2023-02-13 | Throughout the world, the use of water resources is increasing with industrial development, agro-food, and economic and demographic growth, which causes the degradation of their quality by polluted discharges. This requires controls and monitoring of these natural resources. In order to develop a diagnostic of the leve... | Assessment of the water quality in the main rivers of Morocco | 10.1007/s12517-023-11208-4 |
2023-02-13 | Shaly sandstone reservoir is one of the most significant targets in petroleum and gas exploration. However, the influences of various factors on the resistivity of irregular laminated shaly sandstone are yet to be determined, and it is extremely challenging to accurately calculate the water saturation. By considering s... | Finite element method-based resistivity simulation and water saturation calculation of irregular laminated shaly sandstone | 10.1007/s40948-023-00544-0 |
2023-02-13 | Purpose Vulvovaginal candidiasis (VVC) is a mucosal infection of the female lower genital tract for which treatment using conventional antifungal drugs shows limited effectiveness. Herein, amphotericin B-loaded poly(lactic-co-glycolic acid)-polyethylene glycol (PLGA-PEG) nanoparticles (AmB-NPs) were fabricated and comb... | Low intensity ultrasound-mediated drug-loaded nanoparticles intravaginal drug delivery: an effective synergistic therapy scheme for treatment of vulvovaginal candidiasis | 10.1186/s12951-023-01800-x |
2023-02-09 | Archaeological objects based on copper alloys (such as bronze wares) usually suffer from “bronze disease” that results from the existence of CuCl on the surfaces. The surface-coating Cu 2 (OH) 3 Cl can release Cl − and lead to further corrosion during the storage procedure. The central aim of the work is the verity the... | Application of low-temperature plasma for the removal of copper chloride layers on bronze Wares | 10.1186/s40494-022-00839-7 |
2023-02-08 | Autoclaved aerated concrete (AAC) is the lightest masonry material available in today’s building industry. It shows properties, such as high strength per unit weight, lesser density, lower shrinkage, higher thermal insulation, and fire resistance as compared to traditional concrete. Not only engineering properties of A... | Utilization of Solid Waste in the Production of Autoclaved Aerated Concrete and Their Effects on its Physio-mechanical and Microstructural Properties: Alternative Sources, Characterization, and Performance Insights | 10.1186/s40069-022-00569-x |
2023-02-07 | Four samples were prepared by the same synthetic process with paraffinic oil, naphthenic oil, poly-α-olefin oil (PAO), and polyol ester oil (POE), respectively, and using nano-silica as the thickener. For the samples prepared into nano-silica greases (NSGs) successfully, their physiochemical properties, rheological beh... | Effect of Base Oil on Rheological Behaviors and Tribological Properties of Nano-silica Greases | 10.1007/s40735-023-00742-z |
2023-02-07 | Bio-cementation of natural sand is a prospective solution to improve their engineering properties. The enhancement of strength and low-strain shear modulus is considered to be of high engineering significance for improvement in the performance of sand under both static and dynamic loading. In the present study, bio-cem... | Assessment of strength and low-strain shear modulus of bio-cemented sand considering MICP treatment | 10.1007/s12665-023-10780-y |
2023-02-07 | To study the removal of nitrogen and phosphorus from low C/N ratio rural domestic sewage by Fe–C mixed fillers, in this study, a laboratory-scale iron-carbon microelectronics system (IC-ME) and an activated carbon system (AC) were established to purify rural domestic sewage with a C/N ratio of 1.9–4.4. The results show... | Study on the Effect of Iron-Carbon Micro-electrolysis Process on the Removal of Nitrogen and Phosphorus from Rural Domestic Wastewater with Low Carbon to Nitrogen Ratio | 10.1007/s11270-023-06131-z |
2023-02-07 | To realize maximum benefits and minimize environment pollution, the eco-efficiency of cultivated land utilization (ECLU) is becoming a vital indicator in weighing the rationality of regional land use. Scientific analysis of spatial–temporal pattern variations, as well as factors influencing the ECLU, is of great signif... | Exploring the eco-efficiency of cultivated land utilization and its influencing factors in black soil region of Northeast China under the goal of reducing non-point pollution and net carbon emission | 10.1007/s12665-023-10770-0 |
2023-02-07 | Non-invasive laser irradiation can induce photobiomodulation (PBM) effects in cells and tissues, which can help reduce inflammation and pain in several clinical scenarios. The purpose of this study is to review the current literature to verify whether PBM can produce dose effects in anti-inflammatory experiments by sum... | Biphasic dose response in the anti-inflammation experiment of PBM | 10.1007/s10103-022-03664-3 |
2023-02-06 | In this paper, the periodic traveling wave solution for a reaction–diffusion SIR epidemic model with demography and time-periodic coefficients is investigated. Because the traveling wave system of non-autonomous reaction–diffusion model is a partial differential equation system, some traditional methods using only the ... | Wave propagation in a diffusive epidemic model with demography and time-periodic coefficients | 10.1007/s00033-023-01953-7 |
2023-02-05 | Background In recent years, there has been significant research progress on in situ articular cartilage (AC) tissue engineering with endogenous stem cells, which uses biological materials or bioactive factors to improve the regeneration microenvironment and recruit more endogenous stem cells from the joint cavity to th... | Hierarchical porous ECM scaffolds incorporating GDF-5 fabricated by cryogenic 3D printing to promote articular cartilage regeneration | 10.1186/s40824-023-00349-y |
2023-02-05 | Background With the high frequency of acute respiratory infections in children worldwide, particularly so in low-resource countries, the development of effective diagnostic support is crucial. While pulse oximetry has been found to be an acceptable method of hypoxemia detection, improving clinical decision making and e... | Pulse oximetry: why oxygen saturation is still not a part of standard pediatric guidelines in low-and-middle-income countries (LMICs) | 10.1186/s41479-023-00108-6 |
2023-02-03 | Polyurethane-based adhesives are applied on the windshields of vehicles in the automotive industry to fix the windshield and seal the cabin. A failure in the adhesive bead could allow water to ingress between the windshield and the vehicle body. If not detected in the leak test, it can lead to high cost due to warranty... | Automatic inspection system of adhesive on vehicle windshield using computational vision | 10.1007/s40430-023-04051-x |
2023-02-01 | The aerospace industry relies heavily on lithium-ion batteries in instrumentation such as satellites and land rovers. This equipment is exposed to extremely low temperatures in space or on the Martian surface. The extremely low temperatures affect the discharge characteristics of the battery and decrease its available ... | A review on the development of electrolytes for lithium-based batteries for low temperature applications | 10.1007/s11708-022-0853-5 |
2023-02-01 | The deformation behavior of an ultra-high strength low alloy steel (commercial name: XF1700) at strain rates 0.001/s, 0.1/s (quasi-static), 922/s, 5962/s, 6000/s (dynamic) and temperatures 25, 100, 200 and 400 °C by using Split-Hopkinson pressure bar (SHPB) compression test have been investigated in the presented work.... | Constitutive Analysis on Deformation Behavior of XF1700 Ultra-high Strength Low Alloy Steel in Perceptive of Adiabatic Temperature Rise and Strain | 10.1007/s11665-022-07237-x |
2023-02-01 | Low-cost thermal insulation porous ceramics with uniform pore diameter and low bulk density were prepared with soda-ash dregs and felsic tailings. We investigated the effect of temperature, foaming agent, fluxing agent, Al 2 O 3 and CaO content on the pore structure and crystal phase of porous ceramics. The effect of C... | Preparation of Thermal Insulation Ceramics Using Felsic Tailings as Main Raw Material and Soda-ash Dregs as Flux | 10.1007/s11595-023-2664-1 |
2023-02-01 | The Canary Archipelago comprises seven volcanic islands formed by the activity of the Canary mantle anomaly that might have been caused by an ascending plume at the NW-African passive margin. The “Basal Complex (BC)”, which contains the islands pre-shield rock formations, is exposed in the northwest and central Fuertev... | Timing of rapid cooling and erosional decay of two volcanic islands of the Canary Archipelago: implications from low-temperature thermochronology | 10.1007/s00531-022-02253-7 |
2023-02-01 | A high-entropy dual-phase AlTiVCoNi alloy with a low density of ∼6.24 g cm −3 is developed, and it consists of a hierarchical structure, including an ordered L2 1 phase, a disordered body-centered-cubic (BCC) solid-solution phase, and nano-sized L2 1 precipitates embedded in the BCC phase. It is found that this new all... | A low-density high-entropy dual-phase alloy with hierarchical structure and exceptional specific yield strength | 10.1007/s40843-022-2178-x |
2023-02-01 | Visible transparent yet low infrared-emissivity (e) polymeric materials are highly anticipated in many applications, whereas the fabrication of which remains a formidable challenge. Herein, visible transparent, flexible, and low- ε polymeric films were fabricated by nanocoating decoration of indium tin oxide (ITO) and ... | Visible transparent, infrared stealthy polymeric films with nanocoating of ITO@MXene enable efficient passive radiative heating and solar/electric thermal conversion | 10.1007/s12274-022-4962-6 |
2023-02-01 | Abstract With the development of environmental monitoring, it is urgent to establish NO 2 sensor with good sensing performance. Compared with the traditional NO 2 sensors made of metal oxides, NO 2 sensors made of n-p heterostructure nanocomposites have good sensing performance in detection limit and operating temperat... | ZnO/PANI nanoflake arrays sensor for ultra-low concentration and rapid detection of NO2 at room temperature | 10.1007/s12598-022-02149-0 |
2023-02-01 | Modified polyimides (MPIs) show great potential towards 5G communication applications, due to its excellent thermal stability, mechanical property and chemical stability as compared to most of polymers. Introducing fluoride groups or porous structure is favorable to ultra-low dielectric constant ( D k ) and dielectric ... | A Facile Strategy for Intrinsic Low-Dk and Low-Df Polyimides Enabled by Spirobifluorene Groups | 10.1007/s10118-022-2824-z |
2023-02-01 | Silicon has been irreplaceable for a long time due to its well-estiblished design and fabrication in the field of Micro-Electro-Mechanical System (MEMS). However, it has poor tribological properties, which limits the further application of actuators (with relative motion) based MEMS. First, the amorphous silicon (a-Si)... | A Comparative Study on the Anti-Friction Performance of Amorphous Silicon Films Enhanced by WS2 Nanoflakes | 10.1007/s12633-022-02110-x |
2023-02-01 | Phased small interfering RNAs (phasiRNAs) are abundantly expressed in anthers and linked to environment-related male fertility in grasses, yet how they function under different environmental conditions remains unclear. Here, we identified a rice ( Oryza sativa ) low temperature-induced Argonaute (AGO) protein, OsAGO1d,... | Mobile ARGONAUTE 1d binds 22-nt miRNAs to generate phasiRNAs important for low-temperature male fertility in rice | 10.1007/s11427-022-2204-y |
2023-02-01 | A low-temperature bonding process using silver nanoparticles paste has been developed in air at temperatures of 150–250°C under 5 MPa. The resistivity and hardness of the sintered Ag layer significantly improved when the sample was isothermally annealed above 180°C. The microstructural evolution in the Ag nanoparticles... | Low-Temperature Bonding Process by Silver Nanoparticles Paste for Power Electronic Devices | 10.1007/s11664-022-10118-7 |
2023-02-01 | Freshwater supply is declining in the context of climate change, pollution, and soil salinization, calling for sustainable methods to produce drinking water. For instance, salt water can be converted into pure water by steam generation. Interfacial solar steam generation involves photoabsorbers consisting of a photothe... | Interfacial solar steam generation by wood-based devices to produce drinking water: a review | 10.1007/s10311-022-01501-1 |
2023-02-01 | In general, Sn-Ag-Cu solder is widely used for interconnections in semiconductor device packaging. However, recently, several factors have been considered to implement low-melting-temperature solder (LTS), which has a lower assembly temperature than conventional Sn-Ag-Cu solder material. Implementation of LTS solder th... | Intermediate Low-Melting-Temperature Solder Thermal Cycling Enhancement Using Bismuth and Indium Microalloying | 10.1007/s11664-022-10121-y |
2023-02-01 | Low alloy steels are widely used in bridges, construction, chemical and various equipment and metal components due to their low cost and excellent mechanical strength. Information in the literature related to the preparation, advantages and disadvantages, and applications along with research progress of various types o... | Progress in corrosion-resistant coatings on surface of low alloy steel | 10.1007/s42243-022-00872-7 |
2023-02-01 | It is difficult to test the engineering properties of undisturbed cohesionless coarse-grained fillers in the laboratory, especially those with low water contents because most sampling methods disturb the natural structure of the filler. This study proposes a novel sampling method that uses menthol as a temporary cement... | A Novel Menthol-Cementing Sampling Technique for Cohesionless Coarse-Grained Fillers | 10.1007/s12205-022-0103-8 |
2023-02-01 | To investigate the influence of induction treatment on the pitting corrosion resistance of non-standard low-Ni high-Mn-N duplex stainless steel (DSS) coating, the DSS coating with different percentage of Mn and Cr was prepared by tungsten inert gas welding. The electrochemical and pitting corrosion tests were carried o... | Influence of Induction Treatment on the Pitting Corrosion Resistance of Non-standard Low-Ni High-Mn-N Duplex Stainless Steel Coating | 10.1007/s11665-022-07184-7 |
2023-02-01 | Reducing the low-frequency loss (≤ 1 kHz) of the soft magnetic powder cores (SMPCs) while maintaining high saturation magnetic induction ( B s ) is beneficial to the high efficiency and energy saving of motor applications. Herein, the effects of silicone resin content (SI), compaction pressure, and annealing temperatur... | Correlation Mechanism of Microstructure, Magnetic Domain, and Magnetic Softness of Fe-6.5 wt.%Si Composites with High Saturation | 10.1007/s10948-023-06519-2 |
2023-02-01 | By means of low-field nuclear magnetic resonance (LF-NMR), the transverse relaxation time ( T 2 ) signals of physically bound water in cement paste were monitored to indicate water content change and characterize the early-age hydration process. With the curves of the T 2 signals and hydration time obtained, the hydrat... | Effects of Water-cement Ratio and Hydration Heat Regulating Materials on Hydration Process of Early-age Cementitious Materials | 10.1007/s11595-023-2671-2 |
2023-02-01 | Expanded polystyrene (XPS) is an important building exterior wall insulation material at present, and the investigation of fire behavior characteristics is an important way to solve the fire safety problem of XPS. In this study, the influence of low oxygen conditions and external radiation source on smoke and heat rele... | The study of smoke, heat release and fire spread characteristics of expanded polystyrene under low oxygen condition | 10.1007/s10973-022-11788-5 |
2023-02-01 | Abstract The possibility of producing aluminum alloys during low-temperature electrolysis in cells with vertical low-consumption metal anodes and wetted cathodes is shown. Aluminum alloys are fabricated by electrolysis of KF–NaF (10 wt %)–AlF 3 –Al 2 O 3 melt with a certain cryolite ratio (CR) in a galvanostatic mode i... | Electrolytic Production of Aluminum Alloys in Cells with a Low-Consumption Metal Anode and a Wettable Cathode | 10.1134/S0036029523020180 |
2023-02-01 | Two-phase closed thermosyphons (TPCTs) are widely used in many engineering systems. Various working fluids are used in TPCTs depending on the working conditions. One of these working fluids is R134a. However, R134a has high global warming potential (GWP) rate (1300). Therefore, many legal regulations (Montreal protocol... | Investigation of the two-phase closed thermosyphon filled with R1234yf alternative to R134a: energy and environmental analysis | 10.1007/s10973-022-11787-6 |
2023-02-01 | Grain boundaries (GBs), as a prevalent structural characteristic, play a crucial role in the deformation of nanoporous metals with nanosized grains and ligaments. However, the fundamental understanding of GB-mediated deformation is still lacking because the plastic behavior of discrete ligaments involving GBs remains t... | Atomic scale visualizations of low-angle grain boundary mediated plasticity by coupled dislocation climb and glide in nanoporous gold | 10.1007/s12274-022-5306-2 |
2023-02-01 | The electrical resistances of Cu/Sn57BiSbNi/Ni solder joints were continuously monitored during current stressing at temperatures between 95 and 125°C, and current densities up to 7kA/cm 2 , for times approaching 3000 h. Scanning electron microscopy was utilized to characterize corresponding changes in solder joint mic... | The Failure of Sn-Bi-Based Solder Joints Due to Current Stressing | 10.1007/s11664-022-10086-y |
2023-02-01 | Here, we report a novel technique to stabilize selective laser-sintered silver–barium strontium titanate (Ag-BST) resistors at higher temperatures up to 250°C. We previously developed a Ag-BST printable convertible ink (insulating phase to conductive/resistive phase) to pattern resistive features on insulating Ag-BST f... | Stabilizing Selective Laser-Sintered Silver–Barium Strontium Titanate (Ag-BST) Resistors Using a UV-Curable Ink | 10.1007/s11664-022-10049-3 |
2023-02-01 | Low-temperature bonding has become a significant trend in advanced electronics packaging technology. A low-reflow-temperature process can effectively reduce the risk of warpage, thus greatly enhancing device reliability. SnBi eutectic solder is one of the best candidates for low-temperature assembly. In this study, fir... | Hybrid Solder Joint for Low-Temperature Bonding Application | 10.1007/s11664-022-10111-0 |
2023-02-01 | The microstructure, tensile deformation, and texture evolution behaviors of Ti-Nb-Mo-Ce microalloyed high-strength weathering steels were studied under different deformation conditions. The effects of continuous dynamic recrystallization and deformation-induced ferrite transformation (DIFT) on the nanoprecipitation beh... | Effect of Deformation Temperature on Nanoprecipitates and Tensile Behavior of Ti-Nb-Mo-Ce Microalloyed Ferritic Steel | 10.1007/s11665-022-07235-z |
2023-02-01 | The a -axis grains and other secondary phase impurities, which are of great suppression for the superconducting properties, are easily formed on the surface of YBa 2 Cu 3 O 7-δ (YBCO)-coated conductors (CCs) prepared by trifluoroacetic acid metal organic deposition (TFA-MOD) method. Removal of these impurities is cruci... | Improved Superconducting Performance of YBCO-Coated Conductors by Low Energy Density Argon Ion Etching | 10.1007/s10909-022-02856-z |
2023-02-01 | Understanding what environmental factors are genetically linked to a phenological event is critical for predicting responses to climate change. Photosynthetic phenology often varies among a species of evergreen conifers due to local adaptation. However, few empirical studies have revealed relevant relationships between... | Landscape gradient of autumn photosynthetic decline in Abies sachalinensis seedlings | 10.1007/s11676-022-01592-0 |
2023-02-01 | Untapped thermal energy, especially low-grade heat below 373 K from various sources, namely ambient, industries residual, and non-concentrated solar energy, is abundant and widely accessible. Despite that, there are huge constraints to recycle this valuable low-grade heat using the existing technologies due to the vari... | Thermal-mechanical-electrical energy conversion system based on Curie effect and soft-contact rotary triboelectric nanogenerator | 10.1007/s12274-022-5056-1 |
2023-02-01 | In order to know the function of C 18:2 and C 18:3 fatty acids in the cold growth of the psychrotrophic yeast M. bicuspidata var. australis W7-5, the mutant 1 without C 18:2 fatty acid and the mutant 2 without C 18:3 fatty acids were obtained. Only the trace amount of C 18:2 fatty acid in the mutant 1 occurred while no... | Genome-Wide Editing Provides Insights into Role of Unsaturated fatty Acids in Low Temperature Growth of the Psychrotrophic Yeast Metschnikowia bicuspidata var. australis W7-5 | 10.1007/s10126-022-10182-4 |
2023-02-01 | We have developed a passive system to efficiently reduce the amplitude of temperature oscillations in low-frequency Pulse Tube (PT) cryocoolers. It consists of a small, well-insulated tank of liquid 4 He, placed between the cold head of the PT and the user. As a result, we have been able to reduce the amplitude of ther... | An Efficient Damper of Thermal Oscillations for Two-Stage Pulse Tube Cryocoolers | 10.1007/s10909-022-02931-5 |
2023-02-01 | The results of numerical and experimental studies of zirconium irradiated by a low-energy high-current electron beam with an energy density ranging from 2.2 to 5.2 J/cm 2 are presented. The dynamics of surface melting is simulated, and the thickness and lifetime of the melt, as well as the cooling rates achieved in zir... | Changes in the Surface Structure and Properties of Zirconium Upon Exposure to a Low-Energy High-Current Electron Beam | 10.1007/s11182-023-02814-6 |
2023-02-01 | In this study, sodium lignosulfonate modified illite (LS-ILT), an environmentally friendly adsorbent, was prepared by hydrothermal modification. An extensive study of Pb(II) and Cd(II) adsorption behavior and the mechanisms were conducted by evaluating the effects of initial pH value, sorbents dosage, and initial conce... | Highly efficient preferential adsorption of Pb(II) and Cd(II) from aqueous solution using sodium lignosulfonate modified illite | 10.1007/s11356-022-23807-x |
2023-02-01 | The intensified indoor living during the spring 2020 lockdown, with enhanced user awareness of the prevailing conditions in their homes, constituted a natural stress test for the housing design in place today. Surveys conducted during this period have yielded lessons for designing better intervention strategies for the... | Effects of covid-induced lockdown on inhabitants’ perception of indoor air quality in naturally ventilated homes | 10.1007/s11869-022-01239-3 |
2023-02-01 | FeSiCr/MnZn ferrite composites with low permittivity were prepared by a two-step synthesis method, which can improve the absorbing property of the material. The phase and thermal behavior of the composites were analyzed by x-ray diffractometry, thermogravimetric analysis/differential scanning calorimetry. The morpholog... | Microwave Absorption Properties of FeSiCr/MnZn Ferrite Composites Prepared by Two-Step Synthesis | 10.1007/s11664-022-10156-1 |
2023-02-01 | A microwave absorbing sheet with a high complex permeability and a relatively low complex permittivity is obtained by molding of the densely coated flaky carbonyl iron particles (FCIPs) by styrenebutadiene-styrene block copolymer (SBS) in the assistance of coupling agent modification. Direct molding of the core-shell F... | Enhanced Microwave Absorption for High Filler Content Composite Molded from Polymer Coated Flaky Carbonyl Irons Modified by Silane Coupling Agents | 10.1007/s11595-023-2665-0 |
2023-02-01 | In this work, 6-mm-thick ASTM A387-11–2 steel plates have been butt welded at optimized parametric settings of current (A) = 100 A, voltage (V) = 13 V, and gas flow rate (GFR) = 21 L/min. The as-welded plates have been visually inspected for any surface defects and were found to be defect-free. Further, the weldments w... | Influence of Regulated Metal Deposition and Gas Metal Arc Welding on ASTM A387-11–2 Steel Plates: As-deposited Inspection, Microstructure, and Mechanical Properties | 10.1007/s11665-022-07185-6 |
2023-02-01 | Over the past decades, low flow has been highly impacted by climate change across Turkey, and it is important to investigate low flow trends and drivers of this change to guide water resources management. The standard normal homogeneity test (SNHT), the Pettitt test, and the Buishand range test were used for homogeneit... | Assessing the main drivers of low flow series in Turkey | 10.1007/s11069-022-05621-3 |
2023-02-01 | Current petroleum issues, quickly raising its costs and uncertainties regarding petroleum fuels availability endanger the renewable and sustainable challenge of the worldwide economy. Both the ecological consideration and availableness of fuels highly impact fuel directions for transport vehicles. The current paper int... | Current Challenge and Innovative Progress for Producing HVO and FAME Biodiesel Fuels and Their Applications | 10.1007/s12649-022-01880-0 |
2023-02-01 | Using double-pulsed melt inert-gas welding (DP-MIG)-based wire arc additive manufacturing (WAAM), the 2319 aluminum alloy components were fabricated with different pulse frequencies. The low-frequency pulses with 1, 3 and 5 Hz were used to deposit thin-wall parts. The scanning electron microscopy (SEM) and optical micr... | The Microstructure and Mechanical Properties of High-Strength 2319 Aluminum Alloys Fabricated by Wire Double-Pulsed Metal Inert Gas Arc Additive Manufacturing | 10.1007/s11665-022-07209-1 |
2023-02-01 | Abstract This article presents the results of examining pilot bainite steel railroad rails and their tests. It is shown that the set of properties typical of these rails is unreachable in standard perlite steel rails and includes a combination of high strength, hardness, ductility, and impact toughness. Bainite steel r... | Prospects of Making Bainite Steel Rails | 10.3103/S0967091223020043 |
2023-02-01 | Silica/resorcinol–formaldehyde (RF) hybrid xerogels with low shrinkage were prepared efficiently in an environmental-friendly way through a two-step method and ambient drying process. Poly(diallyldimethylammonium chloride) (PDADMAC) was used as a soft template, aqueous solution of resorcinol and formaldehyde was used a... | Facile, tunable, and environmental friendly synthesis of silica/resorcinol–formaldehyde hybrid xerogels with ultra-low shrinkage using a cationic polyelectrolyte as a soft template | 10.1007/s10934-022-01301-6 |
2023-02-01 | Abstract The effect of water on double and triple polyethylene (PE)–polylactide (PLA) blends of various compositions, including those with the addition of aged polyethylene as an analog of recycled polymer is studied in this paper. It is established that the composition of the blends directly affects its characteristic... | Effect of Water on the Structure of Polyethylene–Polylactide Binary Blends and Polyethylene–Polylactide–Aged Polyethylene Ternary Blends | 10.1134/S1990793123010098 |
2023-02-01 | The purpose of this study is to determine whether piston friction can be reduced by applying a micro-pattern to the skirt portion of the piston, which accounts for the largest proportion of engine parts. The roughness of the ready-made pistons was reduced before etching the micro-scale pattern onto the piston skirt. Th... | Reduction of Piston Skirt Friction Using the Micro-scale Patterned Surface | 10.1007/s12239-023-0002-0 |
2023-02-01 | Cut-off lows are crucial extratropical circulation systems that can bring weather extremes over large areas, but the mechanism responsible for the life cycle of cut-off lows remains elusive. From a perspective of regional eddy-mean flow interaction, this study investigates the dynamical processes controlling the evolut... | Dynamical processes controlling the evolution of early-summer cut-off lows in Northeast Asia | 10.1007/s00382-022-06371-5 |
2023-02-01 | Here, well-dispersed and ordered ultrafine Pt nanocatalysts (Pt/SWCNTs) were synthesized by ice-photochemical method on single-walled carbon nanotubes (SWCNTs) without stabilizers and reducing agents. The catalytic performance of Pt/SWCNTs was studied in the reduction of 4 -nitrophenol ( 4 -NP). The morphology and crys... | Photochemical Freeze Synthesis of Ultrafine Platinum Nanocatalysts | 10.1007/s10562-022-03976-7 |
2023-02-01 | Abstract An ethylene glycol (EG)–acetone (AC) system is studied via differential scanning calorimetry in the −140 to +40°С range of temperatures. A phase diagram is plotted over the range of concentrations. It is found that the mixtures in the system are supercooled by more than 30°C. Low-temperature melting is recorde... | Low-Temperature Phase Equilibria in an Ethylene Glycol–Acetone System | 10.1134/S0036024423020267 |
2023-02-01 | The present work examines the behavior of lime fly ash-treated recycled concrete aggregate (LFRCA) as a base course material for low-volume rural roads (LVRRs). The recycled concrete aggregate (RCA) material was stabilized with 10%, 15% and 20% LFA content with a lime-to-fly ash ratio of 1:2. Mechanical tests were carr... | Strength and Durability Characteristics of Lime Fly Ash-Stabilized Recycled Concrete Aggregate for Use in Low-Volume Rural Roads | 10.1007/s40098-022-00659-3 |
2023-02-01 | A refractive index (RI) sensor has been demonstrated and numerically analyzed by the finite element method (FEM) to gain supreme sensitivity on the basis of localized surface plasmon resonance (LSPR). Plasmonic material, such as silver, has been used as a coating layer outside of the dielectric core. Various structural... | Exploration of LSPR-based Refractive Index Sensor Coated with Silver-MgF2 Layer | 10.1007/s11468-022-01767-9 |
2023-02-01 | Abstract High moisture content affecting coal bed methane (CBM) occurrence and transport is a typical feature of low-rank coal (LRC). The mechanism of the influence of moisture on methane diffusion properties of LRC is critical to improve CBM production and prevent coal and gas outburst. In this paper, a new method was... | Effect of Moisture on Time-Varying Diffusion Properties of Methane in Low-Rank Coal | 10.1007/s11242-022-01876-3 |
2023-02-01 | Abstract — A comprehensive study of the Upper Cambrian and Lower Ordovician rock complexes of Northern Kazakhstan was carried out; their ages were substantiated; the structural pattern and setting and rock compositions were investigated. It was established that the Upper Cambrian complexes are represented by coarse cla... | Reconstruction of the Lateral Series of the Late Cambrian and Early Ordovician Active Continental Margin Structures in the Paleozoides of Northern Kazakhstan | 10.1134/S0016852123010041 |
2023-02-01 | The high cost, CO poisoning, and slow electro-oxidation kinetics of Pt-based noble metal catalysts limit the merchandizing of direct methanol fuel cell. Here, metal zeolite imidazole frameworks composites are used to acquire a small amount (6.5 wt%) of Pt nanoparticles modified molybdenum carbide-decorated metallic cob... | Multi-dimensional Pt–Mo/Co@NC nanocomposites with low platinum contents for methanol oxidation | 10.1007/s10008-022-05311-x |
2023-02-01 | Developing scintillators with high light yield (LY), superior irradiation stability, and weak afterglow is of significance for the realization of low-dose high-resolution X-ray excited optical luminescence (XEOL) imaging. Lanthanide doped fluoride nanoparticles possess low toxicity, superior environmental stability, fa... | Enhancing light yield of Tb3+-doped fluoride nanoscintillator with restricted positive hysteresis for low-dose high-resolution X-ray imaging | 10.1007/s12274-022-4998-7 |
2023-02-01 | Abstract The optimum design geometry of a quasi-neutral plasma source is calculated. An ion-source scheme with the inductive plasma discharge induced and maintained by a rf electromagnetic field with a frequency of about 1 MHz is investigated . The surface profiles of the main design units, including the discharge cham... | Optimizing the Design Geometry of Radio-Frequency Ion Thrusters and Ion Sources | 10.1134/S1027451023010020 |
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