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2020-04-01 | The duplex stainless steel UNS S32205 was plasma nitrided at 380 °C for 10 h using a gas mixture of 25% N 2 -75% H 2 . The thickness of the nitrided layer was 4.5 ± 0.5 μm, composed mainly of nitrogen-expanded austenite and iron nitrides precipitates. There was an increase in surface hardness around 2.6 and 3.8 times i... | Effect of Low-Temperature Plasma Nitriding on Corrosion and Surface Properties of Duplex Stainless Steel UNS S32205 | 10.1007/s11665-020-04753-6 |
2020-04-01 | While numerous thermal conductivity investigations of amorphous dielectrics have been reported, relatively few have attempted to correlate to the influence of processing conditions and the resulting atomic structure. In this regard, we have investigated the influence of growth conditions, post deposition curing, elemen... | Thermal conductivity-structure-processing relationships for amorphous nano-porous organo-silicate thin films | 10.1007/s10934-019-00836-5 |
2020-04-01 | Low-cost, fast-transforming carbide-free nano-bainitic steel has been produced with tensile strengths up to 2140 MPa and elongation values of around 10%. An alloying concept of combining low Mn (0.29 wt.%) and moderate Al (~ 1 wt.%) additions enabled full transformation in 10 min to less than 2 h at austempering temper... | High-Strength Low-Cost Nano-Bainitic Steel | 10.1007/s11665-020-04771-4 |
2020-04-01 | High-resolution beta spectrometry based on low-temperature calorimetric detectors requires high-quality source/absorber combinations in order to avoid spectrum artifacts and to achieve optimal detection efficiency. In this work, preparation techniques and quality control methods to fabricate reliable source/absorber as... | Improved Source/Absorber Preparation for Radionuclide Spectrometry Based on Low-Temperature Calorimetric Detectors | 10.1007/s10909-019-02274-8 |
2020-04-01 | To optimize carbon-based nanoscale-zero-valent iron (nZVI) material and remove hexavalent chromium [Cr(VI)] more effectively, activated low rank coals (ALRCs) and FeCl 2 were used to prepare “activated low rank coals/nanoscale-zero-valent iron” (ALRCs/nZVI) composites by carbothermal reduction. The prepared ALRCs/nZVI ... | Preparation of Novel ALRCs/nZVI Composite and Its Removal of Cr(VI) from Aqueous | 10.1007/s41742-020-00243-8 |
2020-04-01 | Uniaxial tensile tests and stress-controlled low-cycle fatigue (LCF) and creep–fatigue interaction (CFI) tests of Inconel 625 alloy manufactured by selective laser melting (SLM) were performed at 815 °C in air environments. The microstructure was characterized by optical microscopy and scanning electron microscopy afte... | Experimental Investigation on the LCF Behavior Affected by Manufacturing Defects and Creep Damage of One Selective Laser Melting Nickel-Based Superalloy at 815 °C | 10.1007/s40195-019-00986-0 |
2020-04-01 | Char-based adsorbents (char-FeCl 3 , char-FeCl 2 , and char-FeCit) derived from cotton textile waste (CTW) were synthesized by one-step low-temperature pyrolysis approach with different iron salts. The properties of the samples were conducted by BET, SEM, EDS, XRD, XPS, TEM, and FTIR. The results suggested that the sur... | Synthesis of char-based adsorbents from cotton textile waste assisted by iron salts at low pyrolysis temperature for Cr(VI) removal | 10.1007/s11356-019-07588-4 |
2020-04-01 | Marine microalgae synthetize great amounts of essential metabolites such as fatty acids and amino acids. In addition, their exposure to stress factors can induce the overproduction of these desirable metabolites. Thus, in this work, we assessed the effect of low-temperature stress on lipid production and composition of... | Enhancement of polyunsaturated fatty acid production under low-temperature stress in Cylindrotheca closterium | 10.1007/s10811-020-02047-x |
2020-04-01 | Lead-free Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT) powders were successfully synthesized by sol–gel-hydrothermal method. The effect of NaOH concentration on microstructure and phase composition of BCZT powders was studied. The results of XRD, SEM, TEM, FTIR, and EDS showed that the synthesis temperature of BCZT powders... | Effect of solution concentration on low-temperature synthesis of BCZT powders by sol–gel-hydrothermal method | 10.1007/s10971-019-05177-y |
2020-04-01 | The 40Bi 2 O 3 -30B 2 O 3 -(30− x )ZnO- x SrO ( x =0–15mol%, BBZSr) glass system was prepared by the conventional melt quenching method. The effect of SrO addition on structure, thermal properties, chemical stability and sealing performance of BBZSr glass were investigated thoroughly. The experimental results show that... | Effect of SrO Content on Structure, Thermal Properties and Chemical Stability of Bi2O3-B2O3-ZnO-SrO Low-melting Glass for Si-Al Alloy Package | 10.1007/s11595-020-2266-9 |
2020-04-01 | To solve the problem of utilizing massive harmful algal blooms (HABs) biomass, we developed a technique involving physical purification methods, namely, microfiltration (2 μm, 0.45 μm), ultrafiltration (100 kDa cutoff), and low-temperature precipitation (4 °C, 48 h), as the core methodology and used the toxic Microcyst... | Study on the safe disposal and resource utilization of cyanobacterial bloom biomass in Dianchi Lake, China | 10.1007/s10811-019-01995-3 |
2020-04-01 | Abstract Development of non-noble metal catalysts for oxidation of CO is an important subject for reducing the automotive emissions. Recently, shape-controlled synthesis of CeO 2 has increasingly attracted the attention of researchers due to its size- and morphology-dependent unique properties. Following this line of t... | Cr-Doped CeO2 Nanorods for CO Oxidation: Insights into Promotional Effect of Cr on Structure and Catalytic Performance | 10.1007/s10562-019-03014-z |
2020-04-01 | Abstract The temperature changes in the crystal lattice parameters a ( T ) of cadmium and strontium fluorides and also of their mutual Cd 1 – x Sr x F 2 ( x = 0.23, 0.50) solid solutions has been studied experimentally at temperatures 5–300 K. The temperature dependences of the unit cell volume of these fluorides are... | Anharmonicity of Lattice Vibrations and the Thermal Properties of Cd1 – xSrxF2 Solid Solutions | 10.1134/S1063783420040174 |
2020-04-01 | Abstract — We have studied processes underlying the formation of γ-Al 2 O 3 from different precursors (aluminum hydroxide, aluminum isopropoxide, and aluminum nitrate) and synthesized mesoporous γ-Al 2 O 3 powders at temperatures of 500 and 600°C. Texture parameters of the powders (specific surface area, average crysta... | Effect of Precursors on the Preparation and Texture of Mesoporous γ-Al2O3 Powders | 10.1134/S0020168520030139 |
2020-04-01 | Abstract The structure and the mechanical properties of low-carbon low-alloy 10Kh3A steel with an overequilibrium nitrogen content (0.20 wt %) are studied after heat treatment under various conditions. The quenching (950°C) and tempering (400°C) temperatures that result in significant hardening of the steel (σ u = 168... | Effect of Heat Treatment on the Structure and the Mechanical Properties of a Low-Alloy 10Kh3A Steel with an Overequilibrium Nitrogen Content | 10.1134/S0036029520040059 |
2020-04-01 | In order to avoid the production of sulfates and nitrates in marine diesel engines that burn sulfur-containing fuels, the operating temperature of their high-pressure selective catalytic reduction (HP-SCR) systems should be higher than 320 °C. For marine low-speed diesel engines, only the pre-turbine exhaust gas temper... | Combustion and emission characteristics for a marine low-speed diesel engine with high-pressure SCR system | 10.1007/s11356-019-04194-2 |
2020-04-01 | In this work, we reported a novel grinding method with high tangential grinding force and low normal grinding force using specially developed grinding tools. The tools were made of flexible composites based on the principle of liquid body armor and the shear thickening mechanism of non-Newtonian fluid. During grinding,... | Experimental investigation on high-shear and low-pressure grinding process for Inconel718 superalloy | 10.1007/s00170-020-05284-z |
2020-04-01 | This study investigates upgrading of low-grade banded hematite quartzite iron ore (Fe ~31%). Conventional beneficiation was found to be futile. The susceptibility of iron phases to microwave exposure and their selective absorption assists in the liberation of iron values. Microwave exposure of coarse particles at 540 W... | Processing of Banded Hematite Quartzite Ore for Recovery of Iron Values | 10.1007/s42461-019-00117-4 |
2020-04-01 | Crustal-scale shear zones are believed to have played an important role in the tectonic and landscape evolution of orogens. However, the variation of long-term rock exhumation between the interior of shear zones and adjacent regions has not been documented in detail. In this study, we obtained new zircon U-Pb, biotite ... | Spatio-temporal variation in rock exhumation linked to large-scale shear zones in the southeastern Tibetan Plateau | 10.1007/s11430-019-9567-y |
2020-04-01 | The predictable quantum efficient detector (PQED) is a primary standard of optical power, which utilizes two custom-made induced-junction photodiodes that are mounted in a wedged trap configuration for the reduction of reflectance losses. PQED photodiodes of p-type and n-type were characterized for their dark current d... | Predictable quantum efficient detector for low optical flux measurements | 10.1007/s10043-020-00580-1 |
2020-04-01 | Cu pillar bump offers a number of advantages for flip chip packaging, compared to the conventional solder bump. However, due to its rigidity structure, Cu pillar bump introduces a lot of stress to the chip, which causes the failure of packaging structures, especially for the advanced node devices which typically have b... | Design Optimization of Pillar Bump Structure for Minimizing the Stress in Brittle Low K Dielectric Material Layer | 10.1007/s40195-019-00948-6 |
2020-04-01 | The present paper outlines the main differences observed in the microstructure and hot workability of AA6082 alloys prepared via low-frequency electromagnetic casting (LFEC) and direct-chill casting, i.e. with and without the application of an electromagnetic stirrer to an innovative casting mould. The hot workability ... | Microstructural Characterisation and Hot-Deformation Behaviour of AA6082 Al Alloy Produced by Low-Frequency Electromagnetic Casting | 10.1007/s11665-020-04763-4 |
2020-04-01 | Carp edema virus (CEV) is the pathogen of carp edema virus disease (CEVD), an emerging infectious disease with high morbidity and mortality worldwide. In the winter of 2016, a disease outbreak occurred in a koi pond in Chengdu, located in the southwest of China. The water temperature at that time was 11–13 °C. The clin... | Outbreak of carp edema virus disease in cultured ornamental koi in a lower temperature in China | 10.1007/s10499-019-00476-1 |
2020-04-01 | RCo 5 (R = rare earth) sintered magnets have good temperature stability, so it is still widely used in high temperature field. In this paper, by the method of adding liquid phase SmCo 1.7 to the main phase, Sm 0.7 Y 0.3 Co 5 magnet was prepared by traditional powder metallurgical process. The results show the presence ... | Low-cost Sm0.7Y0.3Co5 sintered magnet produced by traditional powder metallurgical techniques | 10.1007/s12598-019-01257-8 |
2020-04-01 | The present work reports the effect of niobium addition on a Fe–7wt.%Al–0.35wt.%C-based low-density steel. A hot rolling temperature of 1100 °C was selected to carry out rolling in the intercritical (ferrite + austenite) region. The phases formed on adding Nb were predicted by thermodynamic calculations using ThermoCal... | Effect of Niobium Addition on Microstructure and Mechanical Properties of Fe–7Al–0.35C Low-Density Steel | 10.1007/s13632-020-00622-9 |
2020-04-01 | In this study, the cooling behavior of Sr-modified A356 alloy aluminum wheels produced by low-pressure die-casting technology was investigated in different quenching mediums. Water and surfactant quenchants were used in order to determine the cooling rate and mechanical properties of the alloy. A thermocouple was attac... | Cooling Behavior of A356 Alloy in Surfactant Quenching Medium | 10.1007/s40962-019-00386-1 |
2020-04-01 | Abstract Pr-modified Fe–Mn/TiO 2 ( x Pr) catalysts with high activity and excellent SO 2 resistance were prepared and used for the selective catalytic reduction of NO with NH 3 (NH 3 -SCR) at low-temperatures. Pr can inhibit FeOx and MnOx crystallization and stabilize the high valence states of Fe and Mn, maintaining t... | Pr-doped Modified Fe–Mn/TiO2 Catalysts with a High Activity and SO2 Tolerance for NH3-SCR at Low-Temperature | 10.1007/s10562-019-03019-8 |
2020-04-01 | Different from the high latitudes (24°N-53°N) of China, the low latitudes (4°N-24°N) present large solar elevation angle and strong solar radiation throughout the year. Radiation differences in all directions are smaller than that in high latitudes, which results in the building envelope optimization (BEO) in high lati... | Numerical investigation on building envelope optimization for low-energy buildings in low latitudes of China | 10.1007/s12273-019-0577-6 |
2020-04-01 | This study aimed to understand the effect of ultrasound pre-treatment (UP), cellulase pre-treatment (CP) and their combination (UP+CP) pre-treatments on freeze-dried Lentinula edodes chips. The water distribution, microstructure, physical properties (colour, texture and shrinkage) and the main nutritional components (p... | Effect of Ultrasound and Cellulase Pre-treatment on the Water Distribution, Physical Properties, and Nutritional Components of Lentinula edodes Chips | 10.1007/s11947-020-02422-z |
2020-04-01 | In this study, control research of chip morphology and removal is conducted theoretically and experimentally on the basis of the low-frequency vibration-assisted drilling process of titanium alloy. The chip morphology prediction model is established on the basis of the modified kinematic model, in which the shear angle... | Chip Control Analysis in Low-Frequency Vibration-Assisted Drilling of Ti–6Al–4V Titanium Alloys | 10.1007/s12541-019-00286-8 |
2020-04-01 | The effect of inclusion-induced nucleation on hot-rolled steel base metal was evaluated in comparison with welding heat-affected zone (HAZ). Microstructure and mechanical properties of hot-rolled low-carbon steel containing Ti–Ca oxide particles were studied. The results showed that inclusions in Ti–Ca deoxidized steel... | Microstructure and mechanical properties of hot-rolled low-carbon steel containing Ti–Ca oxide particles: a comparison between base metal and HAZ | 10.1007/s42243-019-00317-8 |
2020-04-01 | The present study explores the opportunity to enhance the hydrogen production rate (HPR) at lower voltage in water electrolysis process by introducing conductive nanoparticles into electrolyte. The development of sustainable, cost-effective, reliable, clean, efficient, and renewable resources of energy systems is cruci... | Improving water-splitting efficiency of water electrolysis process via highly conductive nanomaterials at lower voltages | 10.1007/s40974-020-00147-5 |
2020-04-01 | Polyamidoamine (PAMAM) dendrimer is emerging as an effective nanocarrier for delivering anticancer drugs. Still, unmodified PAMAM dendrimer is hardly used in vivo because of unsatisfied drug release, high tendency of interfering with cellular membranes, and rapid clearance by reticuloendothelial system. In this study, ... | Effective Elimination of Charge-associated Toxicity of Low Generation Polyamidoamine Dendrimer Eases Drug Delivery of Oxaliplatin | 10.1007/s12257-019-0047-0 |
2020-04-01 | This study examines the West Pacific (WP) pattern, one of the primary modes of low-frequency variability during boreal winter, isolated in 11 global climate model seasonal hindcasts. WP mode separation are verified using three metrics: selected mode number, explained variance, and pattern correlation coefficient of the... | West Pacific teleconnection pattern in dynamical seasonal predictions: how is it connected to the Atlantic atmospheric mean bias? | 10.1007/s00382-020-05198-2 |
2020-04-01 | Abstract The structure, the static tensile properties, the impact toughness, and the fracture mechanisms of the 12GSB pipe steel specimens cut from the defect regions in a pipeline 530 mm in diameter are studied. Hydrogen corrosion is found to affect the anomalous character of the temperature dependences of the impact ... | Effect of Hydrogen Corrosion on the Brittle Fracture Resistance of an Oil Line Pipe 530 mm in Diameter Made of 12GSB Ferritic–Pearlitic Steel | 10.1134/S0036029520040084 |
2020-04-01 | This study was aimed to establish the possibility of using an eco-friendly plant-based pomelo peel with different concentrations to formulate a novel corrosion green inhibitor for steel applications in 3.5% NaCl and 0.1 M HCl solutions at 30 °C. The corrosion rate and inhibition efficiency were evaluated using weight l... | Pomelo Peel Extract as Corrosion Inhibitor for Steel in Simulated Seawater and Acidic Mediums | 10.1007/s11665-020-04774-1 |
2020-04-01 | Abstract The characteristics of silicon-oxide layers deposited by various technological methods are compared. It is shown that the catalytic method for obtaining silicon-oxide layers by molecular layering has a number of advantages. The main advantages are a low growth temperature, high-quality interface with a silicon... | Features of SiO2 Layers Synthesized on Silicon by Molecular Layer Deposition | 10.1134/S106378262004003X |
2020-04-01 | Abstract Based on calculations within the density functional theory and an analysis of low-temperature photoluminescence spectra, the structure of electron–hole liquid in shallow Si/Si 1 – x Ge x Si (100) quantum wells 5 nm wide with germanium content x = 3–5.5% is studied. It is shown that the energy of quasi-two-di... | Emission Spectrum and Stability of Two Types of Electron–Hole Liquid in Shallow Si/Si1 – xGexSi Quantum Wells | 10.1134/S106378342004023X |
2020-04-01 | Abstract The increase in pipeline safety would prevent incidents that can result in fatalities, environmental disasters, and economic losses. The present work proposes a technique that combines acoustic sensors and machine learning algorithms to identify and locate leakages in low-pressure gas pipelines. The patterns o... | Machine learning and acoustic method applied to leak detection and location in low-pressure gas pipelines | 10.1007/s10098-019-01805-x |
2020-04-01 | Phytomelatonin-rich (194.02 ± 2.45–205.80 ± 1.67 ng/g of dry mustard seeds) and erucic acid-lean (below 2%) extracts from an oilseed crop, (yellow and black mustard seeds) have been successfully obtained by ultrasonication-assisted-extraction in ethanol–water. Fourier-transform infrared spectroscopy and liquid chromato... | Ultrasonication-assisted extraction of a phytomelatonin-rich, erucic acid-lean nutraceutical supplement from mustard seeds: an antioxidant synergy in the extract by reductionism | 10.1007/s13197-019-04161-2 |
2020-04-01 | Progress in development of biophysical analytic approaches has recently crossed paths with macromolecule condensates in cells. These cell condensates, typically termed liquid-like droplets, are formed by liquid-liquid phase separation (LLPS). More and more cell biologists now recognize that many of the membrane-less or... | Biological phase separation: cell biology meets biophysics | 10.1007/s12551-020-00680-x |
2020-04-01 | AH-32 steel has been widely used in ship and marine structures but not been extensively studied for low-cycle fatigue (LCF) crack growth characteristics. The objective here is to explore the evolution mechanism behind LCF crack propagation behavior under different load conditions, for which the investigation of experim... | Low-Cycle Fatigue Crack Propagation Behavior of Cracked Steel Plates Considering Accumulative Plastic Strain | 10.1007/s13296-019-00303-6 |
2020-04-01 | Purpose The effects of low-intensity pulsed ultrasound (LIPUS) on the expression of immediate-early genes (IEGs) in bone marrow stromal cells (BMSCs) were evaluated to elucidate the early cellular response to LIPUS. Methods Mouse ST2 BMSCs were treated with LIPUS ( I SATA , 12–34 mW/cm 2 for 20 min), then cultured at 3... | Low-intensity pulsed ultrasound promotes the expression of immediate-early genes in mouse ST2 bone marrow stromal cells | 10.1007/s10396-020-01007-9 |
2020-04-01 | Increasing levels of alcohol abuse and changes in consumer interests have motivated the production of ciders with enhanced aroma and flavor, but low alcohol content. The improvement of fermentation has always been an important issue in the brewing industry. In this study, new recombinant fusant yeasts based on Saccharo... | Construction of recombinant fusant yeasts for the production of cider with low alcohol and enhanced aroma | 10.1007/s00217-020-03436-9 |
2020-04-01 | Abstract By measuring low-temperature photoluminescence, we demonstrated the role of interface blurring and the introduction of background impurities in the formation of the single-electron spectrum of GaAs/Al x Ga 1– x As quantum well heterostructures used to fabricate mid-IR photodetectors. Background impurities, hav... | Study of Single-Electron Spectrum of GaAs/AlGaAs Heterostructure for Mid-IR Photodetectors via Low-Temperature Luminescence | 10.3103/S1068335620040041 |
2020-04-01 | In the Parnaíba basin, northeastern Brazil, some records of basic tholeiitic magmatism have been recognized as part of large igneous provinces (LIP’s). They are represented by the Mosquito basaltic flows (Triassic–Jurassic; ca . 200 Ma) that occurs in the west portion of the basin as well as the Sardinha diabases (Cret... | Petrogenesis of the Low-TiO2 Batalha Suite in the eastern Parnaíba basin, northeastern Brazil | 10.1007/s00531-020-01829-5 |
2020-04-01 | Aim To subjectively and objectively evaluate the feasibility and diagnostic reliability of a low-dose, long-pitch dual-source chest CT protocol on third-generation dual-source CT (DSCT) with spectral shaping at 100Sn kVp for COVID-19 patients. Materials and methods Patients with COVID-19 and positive swab-test undergoi... | Proposal of a low-dose, long-pitch, dual-source chest CT protocol on third-generation dual-source CT using a tin filter for spectral shaping at 100 kVp for CoronaVirus Disease 2019 (COVID-19) patients: a feasibility study | 10.1007/s11547-020-01179-x |
2020-04-01 | The effect of Sb on the corrosion resistance of low-alloy steels in a simulated polluted marine atmosphere was studied by electrochemical testing and weight loss measurements. The results showed that the addition of Sb could improve the corrosion resistance, which was confirmed by the increased polarization resistance ... | Effect of Sb on the Corrosion Behavior of Low-Alloy Steels in a Simulated Polluted Marine Atmosphere | 10.1007/s11665-020-04765-2 |
2020-04-01 | A surface plasmon resonance (SPR) sensor based on a photonic crystal fiber (PCF) is proposed for low refractive index (RI) detection. The core of PCF is formed by two-layer air walls and either layer is composed of six identical sector rings with negative curvature. Plasmonic material gold (Au) is coated on the externa... | A Polarization-independent SPR Sensor Based on Photonic Crystal Fiber for Low RI Detection | 10.1007/s11468-019-01054-0 |
2020-04-01 | We investigated whether the vertical roller mill can be efficiently used in the beneficiation of low-grade magnesite and whether it can improve upon the separation indices achieved by the ball mill. We conducted experiments involving the reverse flotation and positive flotation of low-grade magnesite to determine the o... | Research on new beneficiation process of low-grade magnesite using vertical roller mill | 10.1007/s12613-019-1898-2 |
2020-04-01 | Low-level laser irradiation (LLLI) shows effects in orthodontic pain relief and periodontal inflammation control. The aim of this article is to investigate the analgesic and inflammation-modulatory effects of low-level laser irradiation among orthodontic patients with compromised periodontium. A randomised controlled t... | Low-level laser-aided orthodontic treatment of periodontally compromised patients: a randomised controlled trial | 10.1007/s10103-019-02923-0 |
2020-04-01 | Abstract This review presents the recent achievements in the field of development of zeolite catalysts for the production of lower olefins from dimethyl ether. The characteristic features of the influence of the topology and acidity on the conversion of dimethyl ether are discussed. The data on various methods for incr... | Zeolite Catalysts for the Synthesis of Lower Olefins from Dimethyl Ether (a Review) | 10.1134/S0965544120040064 |
2020-04-01 | Previous studies have reported that potassium plays important roles in rapeseed drought tolerance, however, the interrelationship between potassium and metabolism under drought stress remains unclear. In this study, physiological and metabolic responses were investigated in two cultivars Youyan57 (YY57) and Chuanyou36 ... | Effect of potassium deficiency on growth, antioxidants, ionome and metabolism in rapeseed under drought stress | 10.1007/s10725-019-00545-8 |
2020-04-01 | This paper reports on an experimental study of influences of the bias direct currents on the transverse giant magnetoimpedance effect in a FeCoNiBSiMo microwire. Along with increasing the bias direct currents, the low field sensitivity of the impedance increases evidently at high frequency (10–120 MHz). The low field s... | Experimental Study of the Bias Direct Currents on the Transverse Giant Magnetoimpedance Effect in a Soft Ferromagnetic Microwire | 10.1007/s10948-019-05298-z |
2020-04-01 | In order to examine the impacts of water-sediment regulation on regional carbon cycling, we collected water, particulate and sediment samples from the middle-lower Yellow River in late June and early July, 2015 and analyzed their specific amino acids (AA), DOC, POC, and bacteria abundance. Summarized by 14 specific AA,... | Impact of Water-Sediment Regulation on Variations of Amino Acids in the Middle-Lower Yellow River, China | 10.1007/s11802-020-4159-0 |
2020-04-01 | The extracellular matrix (ECM) is the main constituent of connective tissue with structural and regulatory functions, stimulating cell differentiation and proliferation. Moreover, ECM is a dynamic structure in the constant remodeling process, which is controlled by a balance between metalloproteinases (MMPs) and their ... | Evaluation of metalloproteinases-2, -9, and -13 post photobiomodulation in mice talocrural joint | 10.1007/s10103-019-02860-y |
2020-04-01 | The well established way of communication using radio frequency (RF) waves do not perform well in Non-Conventional (Non-Con) media viz. underground and underwater. Herein, the medium of soil or water is dynamic thus the use of RF technique is unusable. To establish a more effective communication in Non-Con media, resea... | 3D Modelling of Superconductor Enabled Magnetic Induction Transmitter and Relay Coil for Non-conventional Media Communication | 10.1007/s11277-019-07004-7 |
2020-04-01 | The pituitary hormone prolactin (PRL) regulates salt and water homeostasis by altering ion retention and water uptake through peripheral osmoregulatory organs. To understand the role of PRL and its receptor (PRLR) in hypoosmoregulation of turbot ( Scophthalmus maximus ), we characterized the PRL and PRLR gene and analy... | Cloning and molecular characterization of PRL and PRLR from turbot (Scophthalmus maximus) and their expressions in response to short-term and long-term low salt stress | 10.1007/s10695-019-00699-2 |
2020-04-01 | Purpose Protease-activated receptor 1 (PAR1) is a signaling protein ubiquitously present on the surface of tumor cells, and its homologous protein fragment, PAR1-activating peptide (P1AP), can inhibit protein signal transduction of PAR1/G in tumor cells. pH (Low) insertion peptide (pHLIP) can target the acidic tumor mi... | pHLIP(Var7)-P1AP suppresses tumor cell proliferation in MDA-MB-231 triple-negative breast cancer by targeting protease activated receptor 1 | 10.1007/s10549-020-05560-2 |
2020-04-01 | Amygdala plays crucial roles in emotional learning. The lateral amygdala (LA) is the input station of the amygdala, where learning related plasticity occurs. The LA is cortical like in nature in terms of its cellular make up, composed of a majority of principal cells and a minority of interneurons with distinct subtype... | Low-threshold spiking interneurons perform feedback inhibition in the lateral amygdala | 10.1007/s00429-020-02051-4 |
2020-04-01 | The advent of X-pinch based compact radiographs has significantly expanded the application field of pulsed radiography for diagnostics of fast processes. The key point here is the spatial resolution which these radiographs can provide. The method for determining the size of the soft x-ray (SXR) source based on diffract... | On the Size of the Soft X-Ray Radiation Source Based on an X-Pinch | 10.1007/s11182-020-01966-z |
2020-04-01 | This paper presents a wideband blocker-tolerant direct $$\varDelta \varSigma$$ Δ Σ receiver (DDSR). Blockers are attenuated through selective input impedance matching and reduced gain design. The selective input impedance profile provides a low impedance at blocker frequencies enabling blocker attenuation, while the in... | A wideband blocker-resilient direct delta sigma receiver with selective input-impedance matching | 10.1007/s10470-020-01611-2 |
2020-04-01 | The aim of this study was to evaluate the effects of photobiomodulation (PBM) by dual-wavelength low-power lasers on the healing and bacterial bioburden of pressure ulcer (PU) models . Twenty-five male Swiss mice were divided into five equal groups. Ischemia reperfusion cycles were employed to cause PU formation by the... | Photobiomodulation by dual-wavelength low-power laser effects on infected pressure ulcers | 10.1007/s10103-019-02862-w |
2020-04-01 | In this paper, a new energy-efficient sample and hold (S/H) circuit based on the proper combination of the Miller-effect and double-sampling technique is presented in the Carbon Nanotube Field Effect Transistor (CNTFET) technology. In order to improve the accuracy and increase the input dynamic voltage range, a new CNT... | An energy-efficient sample-and-hold circuit in CNTFET technology for high-speed applications | 10.1007/s10470-020-01607-y |
2020-04-01 | In 2016, we studied the occurrence of amphibians in 231 selected ponds in the city of Wrocław (Lower Silesia, Poland) and confirmed the occurrence of 10 species: Bombina bombina, Bufo bufo, Bufotes viridis, Hyla arborea, Pelobates fuscus, Pelophylax esculentus complex, Rana arvalis , Rana temporaria, Lissotriton vulgar... | Amphibians in an urban environment: a case study from a central European city (Wrocław, Poland) | 10.1007/s11252-019-00912-3 |
2020-04-01 | Despite the progress that has been made with simulators and the existence of datasets, real experimental platforms are, and will continue to be necessary. Well-designed research platforms that produce reliable results and are easy to operate and debug make all the difference in research productivity. In this paper, we ... | Deeper in BLUE | 10.1007/s10846-019-00983-6 |
2020-04-01 | Increasing interest has been observed in the use of photobiomodulation (PBM) to enhance the proliferation of stem cells and induce their differentiation. The effects of PBM at two different wavelengths (635 and 809 nm) with three different energy densities (0.5, 1 and 2 J/cm 2 ) on the osteogenic differentiation of adi... | Photobiomodulation effects on osteogenic differentiation of adipose-derived stem cells | 10.1007/s10616-020-00374-y |
2020-04-01 | Groundwater resources are used in various parts of the world to meet out drinking water supply, irrigational practices and industrial applications. These valuable resources are naturally replenished by rainfall infiltration. Due to population growth and industrialization, groundwater resources are often overexploited i... | Long-term trend detection and spatiotemporal analysis of groundwater levels using GIS techniques in Lower Bhavani River basin, Tamil Nadu, India | 10.1007/s10668-019-00318-3 |
2020-04-01 | Objective We aimed to assess the outcomes of low-risk pregnancies complicated by isolated reduced fetal movements (RFM) at term. Study design The study population were patients at term, with singleton, low-risk, pregnancies who presented to our obstetric-triage and delivered during the subsequent 2 weeks. The study gro... | Reduced fetal movements at term, low-risk pregnancies: is it associated with adverse pregnancy outcomes? Ten years of experience from a single tertiary center | 10.1007/s00404-020-05516-3 |
2020-04-01 | The purpose of this study was to investigate the effects that photobiomodulation therapy might produce in cells, in particular, related to their structure. Thus, this paper presents the results of morphological changes in fibroblasts following low-intensity light illumination. Mouse fibroblasts were grown on glass cove... | Photobiomodulation therapy can change actin filaments of 3T3 mouse fibroblast | 10.1007/s10103-019-02852-y |
2020-04-01 | Multiple intramuscular (IM) injections of vitamin A have been shown to decrease bronchopulmonary dysplasia in very low birth weight (VLBW) neonates. However, this regime is neither practical nor popular. Oral vitamin A has failed to achieve adequate plasma levels. We aimed to investigate if a schedule of initial IM fol... | Intramuscular Followed by Oral Vitamin A Supplementation in Neonates with Birth Weight from 750 to 1250 g: A Randomized Controlled Trial | 10.1007/s12291-018-0807-1 |
2020-04-01 | Purpose Arthroscopic partial meniscectomy of medial meniscus tears and varus alignment are considered independent risk factors for increased medial compartment load, thus contributing to the development of medial osteoarthritis. The purpose of this biomechanical study was to investigate the effect of lower limb alignme... | Varus alignment aggravates tibiofemoral contact pressure rise after sequential medial meniscus resection | 10.1007/s00167-019-05654-5 |
2020-04-01 | Purpose Assessment of medial meniscus extrusion (MME) has become increasingly popular in clinical practice to evaluate the dynamic meniscus function and diagnose meniscus pathologies. The purpose of this biomechanical study was to investigate the correlation between MME and the changes in joint contact pressure in varu... | Varus alignment increases medial meniscus extrusion and peak contact pressure: a biomechanical study | 10.1007/s00167-019-05701-1 |
2020-03-28 | Background Clinical and basic investigations have indicated a significant association between circulating growth differentiation factor 15 (GDF15) and cardiovascular disease; however, the relationship between GDF15 and lower extremity atherosclerotic disease (LEAD) has been less studied. The present study aimed to expl... | The association between serum growth differentiation factor 15 levels and lower extremity atherosclerotic disease is independent of body mass index in type 2 diabetes | 10.1186/s12933-020-01020-9 |
2020-03-27 | Low temperature (LT) is a key environmental stress affecting the growth, development, yield, and quality of wheat ( Triticum aestivum L.). To better understand the genetic basis of cold tolerance in wheat, we conducted a genome-wide association study (GWAS) of low-temperature tolerance at the seedling stage. A total of... | Genome-wide association study reveals the genetic basis of cold tolerance in wheat | 10.1007/s11032-020-01115-x |
2020-03-23 | This study investigates physical and mechanical characteristics of Lower Eocene limestone exposed on the Sinn El-Kaddab Plateau, southwest of Aswan. The limestone successions belonging to the upper member of the Dungul Formation attain 120 m in the composite section of the area. Sedimentologically, these limestones are... | Geotechnical properties of Lower Eocene limestones, Sinn El-Kaddab Plateau, southwest of Aswan, Egypt | 10.1007/s12517-020-5275-2 |
2020-03-19 | Low level laser therapy (LLLT) is known as a safe type of phototherapy to target tumor tissue/cells. Besides, using targeted nanoparticles increases the successfulness of cancer therapy. This study was designed for investigating the combined effect of folate (FA)/Methotrexate (MTX) loaded silica coated gold (Au@SiO 2 )... | Novel Chemo-Photothermal Therapy in Breast Cancer Using Methotrexate-Loaded Folic Acid Conjugated Au@SiO2 Nanoparticles | 10.1186/s11671-020-3295-1 |
2020-03-19 | To investigate the influence of corroded steel bars on seismic performance of reinforced concrete (RC) columns, eight full-scale RC columns were designed and fabricated, which were composed of one uncorroded RC column, three RC columns with longitudinal reinforcement corrosion and four stirrup-corroded RC columns. The ... | Seismic behavior of corroded reinforced concrete column joints under low-cyclic repeated loading | 10.1007/s43452-020-00043-z |
2020-03-19 | Background Globally, about 15% of newborns are born with a low birth weight (LBW) as a result of preterm birth or intrauterine growth restriction or both. Up to 70% of neonatal deaths occur in this group within the first 3 days after birth. Kangaroo Mother Care (KMC) applied after stabilization of the infant has been s... | Impact of continuous Kangaroo Mother Care initiated immediately after birth (iKMC) on survival of newborns with birth weight between 1.0 to < 1.8 kg: study protocol for a randomized controlled trial | 10.1186/s13063-020-4101-1 |
2020-03-18 | Background Most cinquefoils ( Potentilla L., Rosaceae) are polyploids, ranging from tetraploid (4 x ) to dodecaploid (12 x ), diploids being a rare exception. Previous studies based on ribosomal and chloroplast data indicated that Norwegian cinquefoil ( P. norvegica L.) has genetic material from two separate clades wit... | Complex patterns of reticulate evolution in opportunistic weeds (Potentilla L., Rosaceae), as revealed by low-copy nuclear markers | 10.1186/s12862-020-1597-7 |
2020-03-16 | Palladium nanoparticles (PdNPs) are gaining great interest owing to their excellent physicochemical properties and their wide range of applications. Nanoparticles’ size directly affects the properties and potential applications of PdNPs. Here, we reported a scalable, efficient, green, and one-step method to synthesize ... | Simple, green, and low-temperature method for preparation of palladium nanoparticles with controllable sizes and their characterizations | 10.1007/s11051-020-04801-1 |
2020-03-16 | Background To compare the safety and efficacy of retrograde intrarenal surgery (RIRS) and modified Ultra-mini percutaneous nephrolithotomy (UMP) in semi-supine combined lithotomy position for the management of 1.5–3.5 cm lower pole renal stones (LPSs). Methods A total of 63 patients with 1.5–3.5 cm LPSs who underwent R... | Comparative analysis of retrograde intrarenal surgery and modified ultra-mini percutaneous nephrolithotomy in management of lower pole renal stones (1.5–3.5 cm) | 10.1186/s12894-020-00586-6 |
2020-03-14 | Background The majority of the world’s perinatal deaths occur in low- and middle-income countries. A substantial proportion occurs intrapartum and is avoidable with better care. At a low-resource tertiary hospital, this study assessed the quality of intrapartum care and adherence to locally-tailored clinical guidelines... | Quality of intrapartum care: direct observations in a low-resource tertiary hospital | 10.1186/s12978-020-0849-8 |
2020-03-12 | Novel Ni–Re super-alloy nanowire type catalyst system is found for hydrogen generation from steam methane reforming. The novel nanowire type catalysts exhibit the super-high catalytic activity for hydrogen generation from steam methane reforming with CO-free in the product at lower reaction temperatures. The Ni–Re allo... | Novel highly active Ni–Re super-alloy nanowire type catalysts for CO-free hydrogen generation from steam methane reforming | 10.1007/s12034-020-2070-3 |
2020-03-12 | Background The angiosperm family Bromeliaceae comprises over 3.500 species characterized by exceptionally high morphological and ecological diversity, but a very low genetic variation. In many genera, plants are vegetatively very similar which makes determination of non flowering bromeliads difficult. This is particula... | The low-copy nuclear gene Agt1 as a novel DNA barcoding marker for Bromeliaceae | 10.1186/s12870-020-2326-5 |
2020-03-12 | Three-dimensional gauge theories coupled to fermions can develop interesting nonperturbative dynamics. Here we study in detail the dynamics of SU( N ) gauge theories coupled to a Dirac fermion in the rank-two symmetric and antisymmetric representation. We argue that when the Chern-Simons level is sufficiently small the... | Dynamics of QCD3 with rank-two quarks and duality | 10.1007/JHEP03(2020)078 |
2020-03-04 | Currently available procedures of electron temperature calculations in studying ionized flows around reentry spacecraft by the direct simulation Monte Carlo (DSMC) method are analyzed. It is shown that the heat conduction of electrons is not taken into account in these procedures. The contributions of various effects t... | On the calculation of the electron temperature flowfield in the DSMC studies of ionized re-entry flows | 10.1186/s42774-020-00031-0 |
2020-03-04 | A combination of geological evidence (in the form of hydrothermal vein systems in exhumed fault systems) and geophysical information around active faults supports the localized invasion of near-lithostatically overpressured aqueous fluids into lower portions of the crustal seismogenic zone which commonly extends to dep... | Preparation zones for large crustal earthquakes consequent on fault-valve action | 10.1186/s40623-020-01153-x |
2020-03-04 | Scanning transmission electron microscopy (STEM) at low energies (≤ 30 keV) in a scanning electron microscope is well suited to distinguish weakly scattering materials with similar materials properties and analyze their microstructure. The capabilities of the technique are illustrated in this work to resolve material d... | Imaging of polymer:fullerene bulk-heterojunctions in a scanning electron microscope: methodology aspects and nanomorphology by correlative SEM and STEM | 10.1186/s40679-020-00069-4 |
2020-03-04 | Background Low birth weight (LBW) is associated with end-stage kidney disease and hypertension and is considered to be a surrogate marker of low nephron number. Low nephron number is hypothesized to contribute to glomerular hyperfiltration that may cause kidney injury; however, this is not yet proven. Until now, the hy... | Case report: increased single-nephron estimated glomerular filtration rate in an adult patient with low birth weight | 10.1186/s12882-020-01728-6 |
2020-03-03 | The recent advent of third-generation sequencing technologies brings promise for better characterization of genomic structural variants by virtue of having longer reads. However, long-read applications are still constrained by their high sequencing error rates and low sequencing throughput. Here, we present NanoVar, an... | NanoVar: accurate characterization of patients’ genomic structural variants using low-depth nanopore sequencing | 10.1186/s13059-020-01968-7 |
2020-03-02 | The corrosion inhibition effect of citrus sinensis belonging to Rutaceae family has been analyzed on the low carbon steel corrosion in 0.5 M H 2 SO 4 by using weight reduction estimations and electrochemical measurements. It is observed that the extract of Citrus sinensis acts like a mixed type corrosion inhibitor and ... | Electrochemical Studies and the Surface Examination of Low Carbon Steel by Applying the Extract of Citrus sinensis | 10.1007/s40735-020-00338-x |
2020-03-01 | In this paper, an experimental and numerical investigation of low power laser cutting of cotton fibre laminate (CFL) is presented. CFL is very useful for electrical insulation applications at low voltages, and usually used in gears, spacers and coil supports in turbine generator. Analysis of variance (ANOVA) along with... | Experimental and numerical investigation on multi-pass laser cutting of natural fibre composite | 10.1007/s00170-020-05121-3 |
2020-03-01 | Low-melting frits are most often applied in the form of coatings for ceramic building materials, i.e., roof tiles and brick façade. A thin layer of glaze or sintered engobe improves decorative and functional properties of the final product. The roof tiles are fired in the low temperature range (1000–1200 °C). There are... | The effect of the addition of bismuth (III) oxide on the properties of low-melting boron frits: part 1 | 10.1007/s41779-019-00397-5 |
2020-03-01 | Thermal comfort is the main driver of buildings energy consumption; it has been classified by building occupants to be of greater importance compared with visual and acoustic comfort. To respond correctly and quickly to the increase in energy price and pollution, thermal regulations and comfort approaches have emerged.... | Assessing the duality of thermal performance and energy efficiency of residential buildings in hot arid climate of Laghouat, Algeria | 10.1007/s40095-019-00318-z |
2020-03-01 | Most of the pipelines in Taiwan lie beneath road pavements. Maintaining existing pipelines and establishing new pipelines inevitably leads to the wide-scale excavation and backfilling, which can greatly interfere with traffic patterns. Controlled low-strength material (CLSM) is commonly used as backfill material becaus... | Investigated on predictive compressive strength model and setting time of controlled low-strength materials | 10.1007/s42947-019-0093-1 |
2020-03-01 | To satisfy the energy and security requirements of the explosives, it is necessary to develop high-energetic low vulnerable explosive. As the representatives of high-energetic explosives and low vulnerable explosives, hexanitrohexaazaisowurtzitane (HNIW) and 3-nitro-1,2,4-triazole-5-one (NTO) are used to research high-... | Preparation and performances characterization of HNIW/NTO-based high-energetic low vulnerable polymer-bonded explosive | 10.1007/s10973-019-08743-2 |
2020-03-01 | Low-carbon steel is widely used for household appliance and automotive panel steel because of its excellent plasticity. Unfortunately, yield point phenomena easily appear in the low-carbon steel produced by a continuous annealing process and cause degradation to the surface quality during processing. The effect of the ... | Effect of coiling and annealing temperatures on yield point behavior of low-carbon steel | 10.1007/s42243-019-00342-7 |
2020-03-01 | In the present work, imidazole core mono-amine (ima) was synthesized and used with cardanol (C) and bisphenol-F (BF) to obtain corresponding benzoxazines (C-ima and BF-ima) respectively. Similarly aniline (a) was used as amine precursor for synthesis of benzoxazines (C-a and BF-a) of cardanol (C) and bisphenol-F (BF) r... | Cardanol-Imidazole Based Benzoxazine Blends and Bio-silica Reinforced Composites with Enhanced Surface, Thermal and Dielectric Properties | 10.1007/s10924-019-01649-y |
2020-03-01 | Abstract The bloomery process in rotary kilns is used for reducing roasting of high-magnesia saprolite ores at relatively low temperatures (1200–1225°C). The influence of flux (limestone, bauxite, fluorite) and sulfur-containing (pyrite concentrate, elementary sulfur, gypsum) additives on the temperature of coarsening ... | Development of a Low-Temperature Bloomery Process for Nickel and Cobalt Recovery from Saprolite Ores | 10.1134/S003602952003009X |
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