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2021-09-01 | It is shown that by irradiating nickel titanium surfaces with a low-energy high-current electron beam of a microsecond duration at the energy densities of E s = 1.5 and 3.7 J/cm 2 using n = 5 pulses it is possible to improve the fatigue characteristics of the material by nearly a factor of 1.5 due to surface cleaning f... | Fatigue Properties of Nickel Titanium and their Improvement Using Low-Energy High-Current Electron Beams | 10.1007/s11182-021-02399-y |
2021-09-01 | Abstract Iron cations Fe $${}^{3+}$$ ( S = 5/2) in inorganic compounds usually effectively interact with each other along three directions, which excludes the presence of correlation effects associated with short-range order. However, some systems with distant fragments containing Fe $${}^{3+}$$ ions due to ligands or ... | Iron-Based Low-Dimensional Magnets | 10.3103/S0027134921050192 |
2021-09-01 | This article characterizes fine-ground NK-Alumina 11 and NK-Alumina 14 developed in PKF “NK” for low-cement refractory castables. The quality indicators of the developed aluminas are not inferior to international analogs. | Production of Fine-Ground NK-Alumina 11 and NK-Alumina 14 for Low-Cement Refractory Castables | 10.1007/s11148-021-00592-7 |
2021-09-01 | We consider specific features of variations of the properties of steels depending on the mode of their thermal treatment. We describe specific features of the influence of impulsive magnetic fields on the metals. We also present the results of testing of important operating characteristics of steels for different condi... | Increasing of the Service Life of Consumable Parts of Mining and Metallurgical Machines with the Use of Technologies of Magnetic-Pulse Hardening | 10.1007/s11015-021-01194-x |
2021-09-01 | The effects of 0.01–0.11 wt.% Zr on the inclusions, microstructure, tensile properties, and impact toughness of the China low activation martensitic steel were investigated. Results showed that Zr exhibits good deoxidation and desulfurization abilities. The scanning electron microscope was used to examine the inclusion... | Effect of zirconium on inclusions and mechanical properties of China low activation martensitic steel | 10.1007/s42243-021-00572-8 |
2021-09-01 | The low-temperature wet oxidation behavior of semi-dry desulfurization ash from iron ore sintering flue gas in ammonium citrate solution was investigated for efficiently utilizing the low-quality desulfurization ash. The effects of the ammonium citrate concentration, oxidation temperature, solid/liquid ratio, and oxida... | Low-temperature oxidation behavior and mechanism of semi-dry desulfurization ash from iron ore sintering flue gas | 10.1007/s42243-021-00582-6 |
2021-09-01 | Abstract It has been established that low temperature decomposition of martensite in quenched medium carbon steel takes place in two steps. At the first step, the decomposition intensity is higher than at the next step. The use of neutron diffraction made it possible to reveal two stages of transformation at the first ... | Neutron Diffraction Study of Kinetics of Low Temperature Decomposition of Martensite in Medium Carbon Steel | 10.1134/S2075113321050038 |
2021-09-01 | Purpose of Review This paper reviews various low-cost treatment techniques such as adsorption, permeable reactive barrier, and biological techniques for the simultaneous removal of chemical and microbial contaminants from groundwater and discusses treatment mechanisms of different treatment techniques. This paper also ... | Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options | 10.1007/s40726-021-00187-3 |
2021-09-01 | Abstract One of the most important problems today is to solve heat-supply problems and simultaneously decide the problem of energy saving. Systems of low-temperature electric infrared heaters show high efficiency. Radiant heating systems have several advantages over traditional heating systems, like the possibility of ... | Determining Temperature of Adiabatic Surfaces in Rooms with Radiant Heating | 10.1134/S0040601521090081 |
2021-09-01 | Ecologically and economically harmful wood borers and bark beetles, which have the capacity to expand geographically through the international log trade, require mitigations to prevent their spread. Detailed phenological knowledge of these pests across the wood-product supply chain can support systems approaches to phy... | Large-scale, multi-year, phenology modelling of forest insects in Pinus radiata plantations | 10.1007/s10340-021-01328-9 |
2021-09-01 | SAPO-34 were synthesized using three structure-directing agents (SDAs), i.e., tetraethylammonium hydroxide (TEAOH), triethylamine (TEA), and morpholine (MO). These SAPO-34 supports were used to prepare Cu/SAPO-34 catalysts via two different Cu-exchange methods: incipient wetness impregnation (IWI) and solid-state ion e... | Impact of Different Synthesis Methods on the Low-Temperature Deactivation of Cu/SAPO-34 for NH3-SCR Reaction | 10.1007/s40825-020-00182-y |
2021-09-01 | Abstract Nano-bainitic steels have attracted great attention for good wear resistance. In this research, a medium-carbon low-alloyed steel was austempered at a low temperature close to its martensite-start temperature for various times to obtain mixed microstructure of nano-bainite, martensite and retained austenite. T... | Effect of Short-Term Low-Temperature Austempering on the Microstructure and Abrasive Wear of Medium-Carbon Low-Alloy Steel | 10.1007/s12540-020-00957-6 |
2021-09-01 | The current study tested the hypothesis of whether the low-temperature catalytic cracking of waste plastics would generate carbon fules using high-density polyethylene (HDPE) polymer by potash as a novel catalyst for both energy recovery and carbon recycling. We applied a one-stage pyrolysis reactor system with a 75 mi... | Low-temperature synthesis of kerosene- and diesel-range fuels from waste plastics using natural potash catalyst | 10.1007/s40095-021-00387-z |
2021-09-01 | The electro- and plasmadynamic parameters of a high-frequency discharge at a low pressure (13.3–200 Pa) with a gas blowing-through are investigated in a nonlocal approximation. A discharge in a cylindrical discharge tube in a medium of argon is considered. The flow at the beginning of the discharge tube occurs in the r... | Mathematical Simulation of a High-Frequency Low-Pressure Discharge with Gas Injection in Non-Local Approximation: Electro- and Plasmadynamics | 10.1007/s10891-021-02415-5 |
2021-09-01 | This study was carried out to assess antioxidant activities and defense role of putrescine and proline in leaves of three Citrus species under low temperature stress. Branches of three Citrus species ( C. reticulata L., C. sinensis L. and C. paradisi L. ), sprayed with putrescine 0, 5, 10 mM and proline 0, 15, 20 mM. 2... | Effect of putrescine and proline on proflies of GABA, antioxidant activities in leaves of three Citrus species in response to low temperature stress | 10.1007/s13562-020-00645-x |
2021-09-01 | A simple monitoring method for observing slope movement and deformation can be performed with tilt sensors. A more efficient monitoring method, using a type of wireless communication called LPWA (low-power wide area) network technology, has also recently become available. In the present study, a monitoring system was d... | Development of slope deformation monitoring system based on tilt sensors with low-power wide area network technology and its application | 10.1007/s13349-021-00494-9 |
2021-09-01 | Abstract: The fused-cast refractory is the key lining material for glass furnaces; Its high corrosion resistance and low thermal conduction, which are determined by the phase structure, are a main focus of its development. In this paper, the relationship between the phase composition, the thermal conductivity and the c... | Relationship Between Phase Composition, Thermal Conductivity and Corrosion Resistance of Fused-Cast AZS Refractories | 10.1007/s42411-021-0458-8 |
2021-09-01 | Physicochemical and microbiological parameters of Turkish blossom honey after cold atmospheric gliding arc discharge (GAD) plasma, non-thermal ultrasound, and low-temperature oven treatments were investigated. For this purpose, a full-factorial design method was employed to optimize plasma and ultrasound treatment cond... | Effects of Cold Atmospheric Gliding Arc Discharge Plasma, Non-thermal Ultrasound, and Low-Temperature Oven Treatments on Quality Parameters of Turkish Blossom Honey | 10.1007/s11947-021-02688-x |
2021-09-01 | Abstract A series of Ni-Al 2 O 3 catalysts with attractive catalytic activity and thermal stability have been developed via a facile hydrolysis-precipitation technique (xNiAl-HP, x representing the weight percentage of NiO). Based on the high nickel active surface area, good dispersion of NiO and high content of α- and... | Development of Highly Stable Ni-Al2O3 Catalysts for CO Methanation | 10.1007/s10562-020-03486-4 |
2021-09-01 | An equiatomic Mg 20 Al 20 Si 20 Cr 20 Fe 20 (at.%) low-density high-entropy alloy (LDHEA) was synthesized by mechanical alloying (MA) and consolidated by spark plasma sintering (SPS) techniques. The phase identification, chemical composition, fine microstructural features and thermal stability of the mechanical alloyed... | Fabrication of MgAlSiCrFe Low-Density High-Entropy Alloy by Mechanical Alloying and Spark Plasma Sintering | 10.1007/s12666-021-02262-1 |
2021-09-01 | Exposures of arc crustal sections represent rare opportunities to directly evaluate lower crustal magmatic processes and their link to arc products in the middle and upper crust. Within the southernmost Sierra Nevada batholith, the Bear Valley Intrusive Suite (BVIS) exposes a contemporaneously constructed ~ 30 km thick... | Mixing dry and wet magmas in the lower crust of a continental arc: new petrological insights from the Bear Valley Intrusive Suite, southern Sierra Nevada, California | 10.1007/s00410-021-01832-2 |
2021-09-01 | Abstract In this paper, we study the morphology of the bainite component of the microstructure of rolled products and the mimic coarse-grained region of the thermal effect zone of K60–K65, 09G2S, and 08KhN2MFB low-carbon steels by methods of optical microscopy and electron backscatter diffraction. In the homogeneous mi... | Questioning the Effect of Bainite Morphology on the Impact Viscosity of Low-Carbon Steels | 10.3103/S0967091221090035 |
2021-09-01 | Abstract An experimental stand is developed to study the hydrodynamics of the oil-supercritical CO 2 flow in a homogeneous porous terrigenous medium at pressures up to 25 MPa and temperatures up to 473K. The experimental stand allows measuring the solubility of carbon dioxide in oil and oil in carbon dioxide in the pro... | Unsteady Filtration of the Oil-CO2 Flow in a Homogeneous Reservoir under Different Thermobaric Conditions | 10.1134/S2070048221050185 |
2021-09-01 | Rice is the basic food for over half the global population. Paddy cultivation is limited by environmental stressors, which tend to worsen with climate change. In addition, an increase in food demand is expected soon. Therefore, innovative agricultural technologies capable of increasing food production without increasin... | Rhizospheric Soil from Rice Paddy Presents Isolable Bacteria Able to Induce Cold Tolerance in Rice Plants | 10.1007/s42729-021-00496-y |
2021-09-01 | Abstract The developments in the field of low-noise receiving systems in the sub-THz range, performed at the Kotelnikov Institute of Radio Engineering of the Russian Academy of Sciences in recent years and aimed at the creation of receivers with quantum sensitivity for space and ground-based radio telescopes are presen... | Superconducting Sub-THz Receivers for Space and Ground-Based Radio Astronomy | 10.3103/S1068335621090062 |
2021-09-01 | In this study, experimental and numerical investigations were carried out in order to determine the mechanical properties and impact response of hybrid composite laminate. The hybrid composite laminate was formed from plain woven carbon fiber reinforced epoxy (CFRE) and plain woven glass fiber reinforced epoxy (GFRE) f... | An Experimental and Numerical Determination on Low-Velocity Impact Response of Hybrid Composite Laminate | 10.1007/s40997-020-00402-4 |
2021-09-01 | Precipitation strengthening of nano-scale TiC is a promising method to improve mechanical properties of Fe–16Mn–9Al–0.8C (wt.%) low-density steel. This work attempted to introduce nano-scale TiC precipitates by adding 1 wt.% Ti element. The experimental results show that these precipitates with the total fraction of ab... | Precipitation strengthening of nano-scale TiC in a duplex low-density steel under near-rapid solidification | 10.1007/s42243-020-00511-z |
2021-09-01 | Organo-inorganic hybrid materials based on inorganic oxyfluoride lead-borosilicate glass matrices and the metal-complex compound tris-(8-oxycholate) ytterbium (III) were obtained by the melt method. The spectral-luminescence properties of tris-(8-oxycholate) ytterbium and hybrid materials in the visible and IR ranges w... | Infrared Luminescent Hybrid Materials Based on Inorganic Glass Matrices | 10.1007/s10717-021-00382-0 |
2021-09-01 | Abstract The effect of iron oxide additives on the formation of the microstructure of supported 1 wt % Pt/(Fe 2 O 3 –TiO 2 ) catalysts, the electronic state of platinum, and the catalytic properties of the catalysts in the CO oxidation reaction has been studied. The synthesized catalyst has exhibited a higher activity ... | Synergetic Effect of an Iron Oxide Additive to the Composition of a Support for a Pt/TiO2 Catalyst in the Carbon Monoxide Oxidation Reaction | 10.1134/S0023158421050104 |
2021-09-01 | Photodynamic therapy (PDT) is a treatment that uses light-sensitive drugs and a light source to destroy cancer cells. Methylene blue (MB) is an efficient photosensitizing agent that has been widely used in PDT. However, MB suffers from the hypochromic effect that is caused by self-aggregation and DNA binding in vivo . ... | Photodynamic inheritance from methylene blue to carbon dots against reduction, aggregation, and DNA interference | 10.1007/s40843-020-1623-4 |
2021-09-01 | The remarkable mechanical characteristics of sandwich lattice structures have attracted the attention of many researchers and make it a good candidate for various applications. However, there is limited published research concerning the development of general-purpose dynamic models mimicking the impact behavior of latt... | A Computational Approach in Understanding the Low-Velocity Impact Behavior and Damage of 3D-Printed Polymer Lattice Structures | 10.1007/s11665-021-05873-3 |
2021-09-01 | Abstract The study of the influence of electron-beam treatment on the structural features of a TiNi powder alloy obtained by calcium-hydride reduction is carried out. It is found that electron-beam treatment leads to homogenization of the phase and chemical composition of the surface layer of the TiNi powder alloy, smo... | The Influence of Electron-Beam Treatment on the Structure of a TiNi Powder Alloy Obtained by Calcium-Hydride Reduction | 10.1134/S1027451021050244 |
2021-09-01 | The current study investigates the fitness cost associated with phosphine resistance in the rusty grain beetle, Cryptolestes ferrugineus (Stephens), a problematic pest in the stored commodities that has developed strong resistance to fumigant phosphine. Three characterised insect strains: the susceptible (Ref-S), the s... | Gene introgression in assessing fitness costs associated with phosphine resistance in the rusty grain beetle | 10.1007/s10340-020-01315-6 |
2021-09-01 | Hydrogel has been widely used in the research of bionic articular cartilage due to their similarity in structure and functional properties to natural articular cartilage. In this research, polyvinyl alcohol and betaine monomer were used as raw materials to prepare a high-strength double-network hydrogel by a combinatio... | Mechanical and Tribological Study of PVA–pMPDSAH Double-Network Hydrogel Prepared by Ultraviolet Irradiation and Freeze–Thaw Methods for Bionic Articular Cartilage | 10.1007/s42235-021-00079-8 |
2021-09-01 | Abstract Electro-deoxidation of ilmenite (FeTiO 3 ) is an economical production method of FeTi, particularly, if the end use is hydrogen storage. In this study, we show that electro-deoxidation of impure FeTiO 3 with Ti content lower than Fe, as in the case of low-grade FeTiO 3 ore, results in the formation of a two-ph... | Electro-deoxidation Process for Producing FeTi from Low-Grade Ilmenite: Tailoring Precursor Composition for Hydrogen Storage | 10.1007/s40831-021-00412-9 |
2021-09-01 | A numerical study was performed to investigate the combustion characteristics of hydrogenated catalytic biodiesel (HCB)/gasoline reactivity controlled compression ignition (RCCI) with dual-fuel direct injection at low load condition. The results indicated that compared with the conventional port injection RCCI, the dua... | Numerical investigation of dual-fuel direct injection on RCCI combustion performance at low load condition | 10.1007/s12206-021-0835-2 |
2021-09-01 | The multiple forms of vibration exist in an ambient environment diffusely and already become a considerable object for energy harvesting. However, how to effectively extract low-level, low-frequency, and multi-directional vibration from the ambient environment is becoming a key issue in the field of energy harvesting. ... | A Tower-Shaped Three-Dimensional Piezoelectric Energy Harvester for Low-Level and Low-Frequency Vibration | 10.1007/s40684-020-00281-9 |
2021-09-01 | To reveal the tectonic characteristics of the continental margins in the southwest subbasin (SWB) of the South China Sea, a long high-resolution seismic profile was studied using empty basin subsidence. We find that tectonic subsidence features on both margins are uniformly divided into three stages: (1) slow subsidenc... | Three-stage tectonic subsidence and its implications for the evolution of conjugate margins of the southwest subbasin, South China Sea | 10.1007/s00343-020-0259-3 |
2021-09-01 | The recent development of 3D printers allowed a lot of limitations in the field of microfabrication to be circumvented. The ever-growing chase for smaller dimensions has come to an end in domains such as microfluidics, and the focus now shifted to a cost-efficiency challenge. In this paper, the use of a high-resolution... | Cheap, versatile, and turnkey fabrication of microfluidic master molds using consumer-grade LCD stereolithography 3D printing | 10.1007/s00170-021-07329-3 |
2021-09-01 | Abstract The effect of modulation of the decay envelope of the echo signal of 57 Fe nuclei in lithium ferrite is studied experimentally, which demonstrates its intrawall origin. In contrast to cobalt characterized by a large modulating anisotropic component of the hyperfine field, which acts on nuclei in domain walls u... | A Study of the Nature of the NMR Signal in Lithium Ferrite upon Exposure to a Low-Frequency Magnetic Field | 10.1134/S0031918X21090088 |
2021-09-01 | Abstract— In recent years, the problem of global climate change has become one of the significant challenges for ensuring the sustainability of the functioning and growth in the market value of the world’s leading industrial companies. Based on the latest data, the article describes the scale and impact of climate chan... | Climate Change as a Factor in the Development of Companies: Corporate Strategies and Guidelines for State Industrial Policy | 10.1134/S1075700721050130 |
2021-09-01 | The coronavirus disease 2019 (COVID-19) outbreak has made it necessary to rationalize health-care resources, but there is little published data at this moment regarding ambulatory management of patients with COVID-19 pneumonia. The objective of the study is to evaluate the performance of a protocol for ambulatory manag... | A safe protocol to identify low-risk patients with COVID-19 pneumonia for outpatient management | 10.1007/s11739-021-02660-9 |
2021-09-01 | Abstract The world’s shortage of raw materials favoures the interest towards mineral waste materials as a potential source of valuable metals and minerals. In the past century, mining and metallurgical activities of copper mines and smelters in Albania (Kurbnesh, Reps, Gjegjan, Kukës, Rubik, Lac, Rreshen) storaged vari... | Valorisation of Abandoned Low Grade Tailings in Albania for Recovery of Metal Concentrates and Mineral Products | 10.3103/S106782122105014X |
2021-09-01 | Lithium-sulfur battery is one of the most promising batteries, but it suffers from the low conductivity of sulfur and the dissolution/loss of lithium polysulfide. The dissolution/loss of lithium polysulfide is more serious at low rates, because there is enough time for lithium polysulfide to diffuse to the negative ele... | Improving the low-rate stability of lithium-sulfur battery through the coating of conductive polymer
| 10.1007/s11581-021-04164-0 |
2021-09-01 | The transport system in cochlear hair cells (HCs) is important for their function, and the kinesin family of proteins transports numerous cellular cargos via the microtubule network in the cytoplasm. Here, we found that Klc2 (kinesin light chain 2), the light chain of kinesin-1 that mediates cargo binding and regulates... | Deficiency of Klc2 Induces Low-Frequency Sensorineural Hearing Loss in C57BL/6 J Mice and Human | 10.1007/s12035-021-02422-w |
2021-09-01 | Extraocular motoneurons initiate dynamically different eye movements, including saccades, smooth pursuit and vestibulo-ocular reflexes. These motoneurons subdivide into two main types based on the structure of the neuro-muscular interface: motoneurons of singly-innervated (SIF), and motoneurons of multiply-innervated m... | Transmitter and ion channel profiles of neurons in the primate abducens and trochlear nuclei | 10.1007/s00429-021-02315-7 |
2021-09-01 | The present investigation focuses on the design and development of low-cost carbon and glass fiber-reinforced polymer hybrid composite with optimum flexural strength and modulus, Charpy impact strength, resistance to low-velocity impact, and abrasive wear. There are three hybrid composites ([C 2 G 8 ], [C 3 G 7 ], and ... | Improvement of Low-Velocity Impact and Abrasive Wear Resistance of Carbon/Glass Fiber-Reinforced Polymer Hybrid Composites | 10.1007/s12666-021-02318-2 |
2021-09-01 | The potential changes in the strength and location of five low-level jets (LLJs) located within four Coordinated Regional Climate Downscaling Experiment (CORDEX) domains are examined for present and future climate conditions using an ensemble of simulations conducted with the RegCM4 regional model at a 25 km horizontal... | Future projections in the climatology of global low-level jets from CORDEX-CORE simulations | 10.1007/s00382-021-05671-6 |
2021-09-01 | Abstract The system is described for the formation of the low-temperature starting plasma flow in the GOL-NB trap. The starting plasma is a target for capturing heating neutral beams. The plasma flow is formed in the arc plasma gun installed in a relatively weak magnetic field. Next, it is compressed in the increasing ... | Formation of Starting Plasma Flow in an Open Trap Using Arc Plasma Gun | 10.1134/S1063780X21090026 |
2021-09-01 | Purpose Adverse effects of iron fortification/supplements such as Micronutrient Powder (MNP) on gut microbiota have previously been found in infection-prone African settings. This study examined the adversaries of a low-iron MNP compared with the standard MNP on the composition of gut microbiota in Bangladeshi children... | Effect of low-iron micronutrient powder (MNP) on the composition of gut microbiota of Bangladeshi children in a high-iron groundwater setting: a randomized controlled trial | 10.1007/s00394-021-02523-1 |
2021-09-01 | Nitrogen is one of the essential elements for plant growth. Wild soybeans ( Glycine soja ) have strong abilities to survive in harsh and barren environments, and hence become ideal plant model for studying plant adaptability to low nitrogen (LN) conditions. In this study, we analyzed and compared the transcriptomes of ... | Transcriptome sequencing of wild soybean revealed gene expression dynamics under low nitrogen stress | 10.1007/s13353-021-00628-1 |
2021-09-01 | Background A low β superconducting elliptical cavity was designed for the China Spallation Neutron Source phase II project (CSNS-II). Methods The method to improve the mechanical stability of the low β superconducting elliptical cavity was introduced, and the corresponding mechanical design was given. The software COMS... | Mechanical design of a low β superconducting elliptical cavity for CSNS-II | 10.1007/s41605-021-00260-x |
2021-09-01 | Purpose Obesity has been related to intestinal dysbiosis and the modification of gut microbiota composition by dietary strategies becomes a promising strategy to help manage obesity. The aim of the current study was to evaluate the effect of two weight-loss diets on the composition and functional profile of gut microbi... | Diet- and sex-related changes of gut microbiota composition and functional profiles after 4 months of weight loss intervention | 10.1007/s00394-021-02508-0 |
2021-09-01 | Climate change caused by carbon emissions has a strong influence on the economy and human society. Though numerous previous studies have emphasized the importance of low-carbon innovation on curbing or mitigating carbon emissions, not much attention has been given to the reverse effect. We used a panel of 285 Chinese p... | Do carbon emissions accelerate low-carbon innovation? Evidence from 285 Chinese prefecture-level cities | 10.1007/s11356-021-14291-w |
2021-09-01 | The article presents the study of Particulate Matter air pollution with PM 1 , PM 2,5 and PM 10 by means of a low-cost sensors mounted on Unmanned Aerial Vehicles. The article is divided into two parts. In first part pollution measurement system is described. In second part expert system for optimization of flight para... | Optimization of air pollution measurements with unmanned aerial vehicle low-cost sensor based on an inductive knowledge management method | 10.1007/s11081-021-09668-2 |
2021-09-01 | Recently, the basal beds of the lower section of the Lumbrera Formation have been referred to the early Eocene (Ypresian) based on the identification of a succession of hyperthermal events globally dated between 52 and 55 Ma. Nevertheless, this section have also been referred to the middle Eocene (Lutetian) based on th... | The Early Eocene Climatic Optimum at the Lower Section of the Lumbrera Formation (Ypresian, Salta Province, Northwestern Argentina): Origin and Early Diversification of the Cingulata | 10.1007/s10914-021-09545-w |
2021-09-01 | Urban areas are vulnerable to flooding as a result of climate change and rapid urbanization and thus flood losses are becoming increasingly severe. Low impact development (LID) measures are a storm management technique designed for controlling runoff in urban areas, which is critical for solving urban flood hazard. The... | Low Impact Development Measures Spatial Arrangement for Urban Flood Mitigation: An Exploratory Optimal Framework based on Source Tracking | 10.1007/s11269-021-02915-2 |
2021-09-01 | Abstract Measurements in a desertified area in Astrakhan oblast at heights from 3 to 15 cm under almost nonintermittent saltation on August 23 and September 9, 2011, have been used to determine the size distribution functions of saltating particles in the range from 30 to 330 μm and the vertical profiles of differentia... | Vertical Distribution of Aleurite and Sand Particles in Windsand Flux over a Desertified Area | 10.1134/S0001433821050078 |
2021-09-01 | The severe acute respiratory syndrome coronavirus 2 pandemic has had disproportionate effects on economically and socially marginalized people. We explore the effects on low-wage migrant workers (migrant workers) in three countries: Singapore, South Korea and Brazil, through the lens of the social determinants of healt... | Low-wage migrant workers during coronavirus disease 2019: a social determinants analysis | 10.1057/s41271-021-00303-z |
2021-09-01 | Purpose of review Currently, a lack of guidelines exists regarding best practices for occupational therapists (OTs) in the treatment and evaluation of oculomotor dysfunction following traumatic brain injury (TBI). Furthermore, individuals with TBI would benefit significantly from collaboration between OTs and optometri... | Clinical Practice Guidelines for Occupational Therapists in the Evaluation and Treatment of Oculomotor Impairment Following Traumatic Brain Injury | 10.1007/s40141-021-00310-x |
2021-09-01 | Accurate, cost-effective monitoring and management of young forests is important for future stand quality. There is a critical need for a rapid assessment tool for forest monitoring and management. This study uses a low-cost unmanned aerial vehicle (UAV) to complete a tree height and tree density assessment in a newly ... | Assessing tree height and density of a young forest using a consumer unmanned aerial vehicle (UAV) | 10.1007/s11056-020-09827-w |
2021-09-01 | Objective To study the predictive effect on YCH patients complicated with LEDVT by PLR and DFR combined with WELLS score. Materials and methods A total of 109 patients with YCH were selected as the research subjects. Patients with combined LEDVT were in the thrombosis group (33 cases), and without LEDVT in the non-thro... | The predictive value of platelet to lymphocyte ratio and D-dimer to fibrinogen ratio combined with WELLS score on lower extremity deep vein thrombosis in young patients with cerebral hemorrhage | 10.1007/s10072-020-05007-y |
2021-08-29 | Background Lumbopelvic control (LPC) has recently been associated with function, kinesiology, and load distribution on the limb. However, poor LPC has not been studied as a risk factor for lower limb injury in sports requiring frequent jump landings. The present study investigated the effects of LPC on landing mechanic... | Effect of lumbopelvic control on landing mechanics and lower extremity muscles’ activities in female professional athletes: implications for injury prevention | 10.1186/s13102-021-00331-y |
2021-08-28 | Effect of low temperature and low oxygen concentration on biochemical attributes, antioxidant enzyme activities, phenolics profile and expression of phenylpropanoid pathway-related genes was investigated in crabapple ( Malus profusion ) fruit. Crabapple fruit were kept at room temperature (RT, 20 ± 2 °C and 25 ± 2 °C a... | Low temperature and hypoxic conditions induce flavonoids biosynthesis and enhances antioxidant potential of crabapple (Malus profusion) fruits | 10.1007/s11738-021-03302-5 |
2021-08-26 | Due to the global rise of the human population, one of the top-most challenges for poor and developing nations is to use the food produces safely and sustainably. In this regard, the storage of surplus food (and derived products) without loss of freshness, nutrient stability, shelf life, and their parallel efficient ut... | Metal-based nanoparticles, sensors, and their multifaceted application in food packaging | 10.1186/s12951-021-00996-0 |
2021-08-26 | Background For over a decade, antiretroviral therapy (ART) in resource-limited countries was only recommended for patients with advanced HIV disease. We investigated this group of patients in order to determine any relationship between degree of immunosuppression during treatment initiation and the subsequent levels of... | Advanced baseline immunosuppression is associated with elevated levels of plasma markers of fungal translocation and inflammation in long-term treated HIV-infected Tanzanians | 10.1186/s12981-021-00381-9 |
2021-08-26 | Background Immunization directly impacts health (SDG3) and brings a contribution to 14 out of the 17 Sustainable Development Goals (SDGs), such as ending poverty, reducing hunger, and reducing inequalities. Therefore, immunization is recognized to play a central role in reaching the SDGs, especially in low- and middle-... | Advancing sustainable development goals through immunization: a literature review | 10.1186/s12992-021-00745-w |
2021-08-26 | Abstract Background Static or motion manual palpation of the low back is commonly used to assess pain location and reproduction in low back pain (LBP) patients. The purpose of this study is to review the reliability and validity of manual palpation used for the assessment of LBP in adults. Method We systematically sear... | Reliability and validity of manual palpation for the assessment of patients with low back pain: a systematic and critical review | 10.1186/s12998-021-00384-3 |
2021-08-25 | The omnipresence of oysters in Cenozoic sedimentary series and their high preservation potential allowed their consideration as one of the ecological indicators for the reconstitution of the palaeoenvironments of the Neogene basins of Orania. Few researches were interested in the systematics of Messinian oysters of the... | Palaeoenvironmental distribution of late Miocene oysters in the northwestern Algerian basins | 10.1007/s12517-021-08248-z |
2021-08-23 | Background The identification and functional analysis of genes that improve tolerance to low potassium stress in S. spontaneum is crucial for breeding sugarcane cultivars with efficient potassium utilization. Calcineurin B-like (CBL) protein is a calcium sensor that interacts with specific CBL-interacting protein kinas... | Comparative phylogenetic analysis of CBL reveals the gene family evolution and functional divergence in Saccharum spontaneum | 10.1186/s12870-021-03175-3 |
2021-08-21 | Background Gene electrotransfer is an established method that enables transfer of DNA into cells with electric pulses. Several studies analyzed and optimized different parameters of gene electrotransfer, however, one of main obstacles toward efficient electrotransfection in vivo is relatively poor DNA mobility in tissu... | The impact of impaired DNA mobility on gene electrotransfer efficiency: analysis in 3D model | 10.1186/s12938-021-00922-3 |
2021-08-21 | In this paper, a wide-range current mirror based on a low-power flipped voltage follower with improved performance parameters is proposed. In the proposed design the flipped voltage follower cell uses a MOS transistor in its feedback path, due to which the output impedance gets scaled down, which when applied for curre... | Low-voltage wide-range high-impedance flipped voltage follower current mirror | 10.1007/s12046-021-01694-1 |
2021-08-18 | Peatlands are responsible for the majority of methane (CH 4 ) emission from wetlands globally. Hydrological changes induced by climatic and anthropogenic disturbance may substantially alter CH 4 emission in peatlands. Here we measured CH 4 emission monthly for 1.5 years in natural, drained and restored shrub bogs in No... | The Effects of Hydrological Management on Methane Emissions from Southeastern Shrub Bogs of the USA | 10.1007/s13157-021-01486-7 |
2021-08-16 | To study the effect of magma intrusion on the thermal evolution of low-rank coal with high moisture content, the relationship between moisture content variation and thermal conductivity of low-rank coal was analyzed by COMSOL Multiphysics numerical simulation and field validation. Taking Daxing Mine in Tiefa coalfield ... | Numerical simulation of magma intrusion on the thermal evolution of low-rank coal | 10.1007/s12665-021-09871-5 |
2021-08-16 | Low impact development (LID) practices are able to mitigate the detrimental effects of urbanization and climate change due to their salient design features. LID can restore the hydrology of urban areas to the pre-development functions by using distributed stormwater control and natural hydrological features. LID can he... | Low Impact Development (LID) Practices: A Review on Recent Developments, Challenges and Prospects | 10.1007/s11270-021-05262-5 |
2021-08-16 | Large-amplitude geomagnetically induced currents (GICs) are the natural consequences of the solar–terrestrial connection triggered by solar eruptions. The threat of severe damage of power grids due to the GICs is a major concern, in particular, at high latitudes, but is not well understood as for low-latitude power gri... | Prediction of geomagnetically induced currents (GICs) flowing in Japanese power grid for Carrington-class magnetic storms | 10.1186/s40623-021-01493-2 |
2021-08-16 | The complex pore network in gas shale may result in the inaccurate evaluation of petro-physical properties with the different models. Therefore, in the current research, we proposed a new methodology of ∆ log R separation method that can be used to distinguish the mature source zone and reservoir zone. When this techn... | Petro-physical evaluation and identifying possible resource plays using the porosity and resistivity logs, Lower Indus Basin, Pakistan | 10.1007/s12517-021-08197-7 |
2021-08-12 | Positive Energy Block (PEB) is an emerging paradigm to transform cities into low carbon cities. It is expected that buildings will become the main components of the future energy infrastructure. This scenario demands a structural integration of the cyclical environmental variables in designing our buildings and cities ... | Developing a process-oriented approach towards Positive Energy Blocks: the wind-analysis contribution | 10.1186/s40410-021-00141-2 |
2021-08-11 | Background Kiwifruit ( Actinidia Lindl.) is considered an important fruit species worldwide. Due to its temperate origin, this species is highly vulnerable to freezing injury while under low-temperature stress. To obtain further knowledge of the mechanism underlying freezing tolerance, we carried out a hybrid transcrip... | Full-length transcriptome profiling reveals insight into the cold response of two kiwifruit genotypes (A. arguta) with contrasting freezing tolerances | 10.1186/s12870-021-03152-w |
2021-08-09 | BaSO 4 waste powder containing radionuclides generated from nuclear facilities must be immobilized into a stable waste form for final disposal. In this study, the immobilization of BaSO 4 waste powder containing simulant radioactive cobalt by low-temperature sintering was evaluated. A simulated decontamination waste wa... | Feasibility Study on Immobilization of Radioactive Cobalt and BaSO4 Waste Powder Using Low-Temperature Sintering | 10.1007/s11270-021-05292-z |
2021-08-09 | Dolomite diagenesis is a key issue in the evolution of dolomite reservoirs. Hence, lower Paleozoic carbonate samples from the Bonan Low Uplift are analyzed. Data collected from thin sections, cathodoluminescence, X-ray diffraction, major and trace elements, rare earth elements, isotopes, and other experimental work to ... | Geochemical characteristics and genesis of lower Paleozoic dolomites in the central Bohai Sea | 10.1007/s12517-021-08145-5 |
2021-08-09 | Residual plastic deformation induced in low-carbon steels usually demonstrates anisotropy. Eddy current method is applicable for the residual plastic deformation evaluation. However, it is difficult to efficiently evaluate both the principal strain direction and magnitude of residual plastic deformation with the conven... | Evaluation of the Residual Plastic Deformation in Low-Carbon Steel with the Oscillatory Rotating Eddy Current Method | 10.1007/s10921-021-00800-x |
2021-08-07 | Background Priming of seed prior chilling is regarded as one of the methods to promote seeds germination, whole plant growth, and yield components. The application of biostimulants was reported as beneficial for protecting many plants from biotic or abiotic stresses. Their value was as important to be involved in impro... | Metabolic activities and molecular investigations of the ameliorative impact of some growth biostimulators on chilling-stressed coriander (Coriandrum sativum L.) plant | 10.1186/s12870-021-03021-6 |
2021-08-07 | Background The root rot of fragrant solomonseal ( Polygonatum odoratum ) has occurred frequently in the traditional P. odoratum cultivating areas in recent years, causing a heavy loss in yield and quality. The phenolic acids in soil, which are the exudates from the P. odoratum root, act as allelochemicals that contribu... | Physiological and transcriptomic analyses to reveal underlying phenolic acid action in consecutive monoculture problem of Polygonatum odoratum | 10.1186/s12870-021-03135-x |
2021-08-03 | Background Photo-thermo-sensitive genic male sterile (PTGMS) rice ( Oryza sativa L.) is usually considered two-line male sterile rice because of its dual-purpose in two-line hybrid rice system: under short days and low temperatures, it is fertile and used for self-propagation, but under long days and high temperatures,... | Characteristics of Fertility Transition Response to the Cumulative Effective Low Temperature in a Two-Line Male Sterile Rice Cultivar | 10.1186/s12284-021-00514-8 |
2021-08-03 | To assess the suitability of a newly developed jute–polypropylene blended jute geotextile (JGT) in expansive black cotton (BC) soil as road-subgrade for low volume road construction, several laboratory-based studies were carried out, viz., the effect of pressure on the thickness of the geotextile fabric, long-duration ... | Application of Jute–Polypropylene Blended Geotextile in Black Cotton Soil Subgrade for Low Volume Road Construction | 10.1007/s40891-021-00301-x |
2021-08-03 | Background Bone tissue engineering is a new concept bringing hope for the repair of large bone defects, which remains a major clinical challenge. The formation of vascularized bone is key for bone tissue engineering. Growth of specialized blood vessels termed type H is associated with bone formation. In vivo and in vit... | Low level laser therapy promotes bone regeneration by coupling angiogenesis and osteogenesis | 10.1186/s13287-021-02493-5 |
2021-08-03 | Comparing with conventional formations, the resistivity difference between the oil-bearing reservoir and water-saturated layer is little in the Triassic Chang 3 Member of the Yanchang Formation in Pengyang Region, southwestern Ordos Basin, China. This makes the oil-bearing potential reservoirs’ identification face a gr... | Genesis analysis and identification of low-resistivity contrast oil-bearing reservoirs: a case study in the Triassic Chang 3 Member of the Yanchang Formation in Pengyang Region, Southwestern Ordos Basin, China | 10.1007/s12517-021-08052-9 |
2021-08-02 | In this paper, a modified 1-bit arithmetic and logical unit (ALU) is proposed from the existing designs and a 4-bit ALU has been developed using both CMOS and Sub-Threshold Adiabatic Logic (SAL) in 45nm technology using CADENCE Virtuoso Software. Power and delay analyses are performed in the sub-threshold region of SAL... | Design of 4-bit ALU using sub-threshold adiabatic logic (SAL) | 10.1007/s12046-021-01668-3 |
2021-08-01 | A major roadblock in achieving substantial building energy reduction is the low performance of old buildings that account for a significant portion of the building energy consumption. Finding low-cost energy retrofit solutions that do not disrupt occupants’ daily life during the retrofitting is the key to successful bu... | Assessing cooling energy reduction potentials by retrofitting traditional cavity walls into passively ventilated cavity walls | 10.1007/s12273-020-0740-0 |
2021-08-01 | One of the ways to identify the type of failures and to estimate the lifetime of components is to examine the fracture surface by fractographic analysis. The application of this investigation can be introduced in the prediction of the fatigue lifetime of the vehicle parts, aircraft and marine components, and all other ... | Estimation of Low-Cycle Fatigue Lifetime in Aluminum-Silicon-Magnesium Alloy of Cylinder Heads based on Striation Marks as Failure Features of Fracture Surfaces and Paris Crack Growth Law | 10.1007/s11668-021-01196-6 |
2021-08-01 | The discovery of the Meissner (Meissner–Ochsenfeld) effect in 1933 was an incontestable turning point in the history of superconductivity. First, it demonstrated that superconductivity is an unknown before equilibrium state of matter, thus allowing to use the power of thermodynamics for its study. This provided a justi... | Meissner Effect: History of Development and Novel Aspects | 10.1007/s10948-021-05925-8 |
2021-08-01 | The stability of gradient grain microstructure on the surface of low carbon steel was studied by different annealing temperature and high temperature friction and wear experiments. The results showed that the surface grain of the low-carbon steel was refined, and the microhardness reached 250 HV. An increase in the ann... | Study on the Stability of Microstructure and Mechanical Properties of Gradient Refined Microstructure on Low-Carbon Steel Surface | 10.1007/s11665-021-05817-x |
2021-08-01 | The oil and gas production has grown steadily, and the care with its transportation grid needs to be maintained and expanded. The pipeline used in the transport of gas and oil by-product requires materials with high mechanical strength, toughness, and fatigue resistance. The chemical composition and distribution, amoun... | Microstructure and Mechanical Properties of Nb-API X70 Low Carbon Steel | 10.1007/s13632-021-00761-7 |
2021-08-01 | The relationship between microstructure and corrosion behavior of high-grade pipeline steel under low-temperature conditions was comparatively investigated by the potentiodynamic polarization and electrochemical impedance spectroscopy test combining with optical micrographs, scanning electron microscopy, transmission e... | Relationship between microstructure and corrosion behavior of high-grade pipeline steel in a low-temperature environment | 10.1007/s42243-021-00621-2 |
2021-08-01 | Abstract The effect of complex additives based on cobalt, iron, and manganese oxides and sodium silicate on the phase composition, microstructure, mechanical properties, and sintering of tetragonal zirconia ceramics stabilized with 3 mol % yttria and containing 10 wt % alumina (3Y–TZP–10Al 2 O 3 ) was studied. The intr... | Effect of Complex Additives Based on Iron, Cobalt, and Manganese Oxides and Sodium Silicate on the Sintering and Properties of Low-Temperature Ceramics 3Y–TZP–Al2O3 | 10.1134/S0036023621080192 |
2021-08-01 | Waste heat recovery systems are proposed to be an environmentally benign and a cost-effective application for efficiency improvement of energy conversion systems. In this research, three different subsystems—gas turbine cycle, steam Rankine cycle, and a coupled organic Rankine cycle–vapor compression refrigeration—are ... | Thermodynamic and exergoeconomic analyses and performance assessment of a new configuration of a combined cooling and power generation system based on ORC–VCR | 10.1007/s10973-020-10230-y |
2021-08-01 | Oil spills into ocean or coastal waters can result in significant damage to the environment via pollution of aquatic ecosystems. Absorbents based on reduced graphene oxide (rGO) foams have the capacity to remove minor or major oil spills. However, conventional chemical synthesis of rGO often uses petrochemical precurso... | Growth of rGO nanostructures via facile wick and oil flame synthesis for environmental remediation | 10.1007/s42823-021-00244-3 |
2021-08-01 | Oxidation of the Fe-base alloy T22 in humid air at 500 °C was investigated. The samples were exposed for up to 1000 h at 1 bar and 20 bar. The influence of three furnace tube materials, alumina, ET45 and quartz glass, on the oxide scale morphology was investigated. Samples and their cross sections were examined using o... | Effect of Total Pressure and Furnace Tube Material on the Oxidation of T22 in Humidified Air | 10.1007/s11085-021-10036-9 |
2021-08-01 | Abstract A simple low-temperature (< 100 °C) hot-water treatment was used to synthesize Fe–N co-doped anatase nanocrystals which were uniformly dispersed in micro–mesoporous SiO 2 host film for the first time. The Fe–N co-doped TiO 2 –SiO 2 (FNTS) film exhibited stable photocatalytic activities. A NO removal efficiency... | Low-Temperature Synthesis of Micro–Mesoporous TiO2–SiO2 Composite Film Containing Fe–N Co-Doped Anatase Nanocrystals for Photocatalytic NO Removal | 10.1007/s10562-020-03466-8 |
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