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2020-03-01 | The methods for low-cycle fatigue testing and cyclic crack growth testing of 10GN2MFA steel at 20 and 270°C are described. Based on test results, fatigue crack growth rate curves are plotted and the characteristics of low-cycle plastic deformation and fracture are found. A difference in the kinetics of low-cycle plasti... | A Study of Fatigue Crack Growth Rate in Steels in Relation to Crack-Tip Plastic Deformation and Fracture. Part 1. Test Methods and Results for 10GN2MFA Steel | 10.1007/s11223-020-00169-8 |
2020-03-01 | The Southern Volcanic Zone of the Andes has a high potential in terms of geothermal resources and is an exceptional and poorly explored natural laboratory to study the interplay between tectonic stresses, thermal damage, low-permeable crystalline rocks, and fluid flow. Permeability is mostly related to the damage zones... | Digital Rock Approach to Model the Permeability in an Artificially Heated and Fractured Granodiorite from the Liquiñe Geothermal System (39°S) | 10.1007/s00603-019-01967-6 |
2020-03-01 | A novel method of drying dyed cashmere fiber by low temperature microwave was proposed and investigated in this paper, the effect of low temperature microwave drying on the properties of dyed cashmere fiber was characterized and discussed in details. The results showed that the mechanical properties of cashmere after v... | Effect of Low Temperature Microwave Drying on Properties of Dyed Cashmere Fibers | 10.1007/s12221-020-9713-2 |
2020-03-01 | Low-temperature oxidation of anthracite coal has not been extensively investigated. In this study, variations in the structural parameters associated with aliphatic species (e.g., methyl and methylene) in anthracite coal were investigated during low-temperature oxidation (60 °C to 120 °C) using infrared spectroscopy an... | Influence of Aliphatic Species on Coal Molecular Structure During Low-temperature Oxidation of Anthracite Coal | 10.1007/s40710-019-00411-9 |
2020-03-01 | It is shown that the linear thermal expansion coefficient (CLTE) for sitalls based on the lithium aluminosilicate system can be precisely controlled near values close to zero in the temperature range from –80 to +500°C. It was found that heat-treatment for several hours at temperatures corresponding to the stage of nuc... | On the Possibility of Precision Control of the Linear Thermal Expansion Coefficient of Transparent Lithium-Aluminum- Silicate Sitals Near Zero Values | 10.1007/s10717-020-00220-9 |
2020-03-01 | To better control the gelation time of in situ polymerization of gel system in reservoir, an activator regenerated by AGET (activator generated by electron transfer) ATRP (atom transfer radical polymerization) initiating system was developed. The AGET ATRP initiating system was composed of an initiator 1,2-dibromoethan... | Controlling gelation time of in situ polymerization of gel system through AGET ATRP principle | 10.1007/s13726-020-00791-y |
2020-03-01 | To obtain symmetric supercapacitors (SCs) with high energy density, it is critical to fabricate an electrode with wide potential window and excellent capacitive performance. Herein, by using the strong double hydrolysis reaction between anions and cations, the FeOOH nanosheets on the surface of activated carbon cloth (... | Low Li ion diffusion barrier on low-crystalline FeOOH nanosheets and high performance of energy storage | 10.1007/s12274-020-2691-2 |
2020-03-01 | The Sterile Insect Technique (SIT) is currently being investigated against Aedes albopictus Skuse (Diptera: Culicidae) mosquitoes in Panchvati, a village in Mauritius. As an essential step before field releases, this study investigated the effect of temperature (2 h exposure at 5, 10, 15 or 25 °C) and compaction (2000 ... | Investigating the effects of low temperature and compaction on the quality of adult radio-sterilised Aedes albopictus (Diptera: Culicidae) males in view of their optimal transport to the pilot sterile release site in Mauritius | 10.1007/s42690-019-00050-5 |
2020-03-01 | Abstract Xerogels in the ZrO 2 –Y 2 O 3 –CeO 2 system are obtained by coprecipitation. The influence of the synthesis method on the acid-base xerogel surface properties are studied. The sinuous dependence of the Lewis and Brønsted site content on the particle surface on the conditioning time of precipitates in the moth... | Influence of Xerogel Synthesis Conditions in the ZrO2–Y2O3–CeO2 System on the Properties of Powders and Ceramics Based on Them | 10.1134/S1087659620020030 |
2020-03-01 | The replacement of precious metal electrocatalysts by highly active and cost-efficient alternatives for complete water splitting at low voltage has recently attracted a growing attention. In this work, it is reported how semigraphitized carbons are transformed into highly active electrocatalysts for hydrogen evolution ... | Efficient and Durable Semigraphitized Carbon Catalyst for Hydrogen Evolution in Alkaline Electrolyte | 10.1007/s11665-020-04705-0 |
2020-03-01 | Low-rank coals may undergo low-temperature oxidation and self-heating during mining, freightage, and handling. The oxidation of coal changes its structure which will be relected in the behaviour of coal water. A differential scanning calorimetry study was conducted to investigate the impact of low-temperature oxidation... | A DSC study on the impact of low-temperature oxidation on the behavior and drying of water in lignite | 10.1007/s10973-019-08749-w |
2020-03-01 | Abatch composition was developed on the basis of low-plastic clay, which also contains 6% (by weight) boric acid and up to 10% molybdenum trioxide as fluxes promoting liquid-phase sintering. It was determined that the molybdenum trioxide also decreases the surface tension of the melt and increases the strength of the b... | Development of Molybdenum-Containing Facing Ceramic based on Low-Plastic Clay | 10.1007/s10717-020-00214-7 |
2020-03-01 | Theoretical studies of refrigerant blends in closed-loop throttling low-temperature refrigeration machines, which provide the specified cryostatting mode for cooled objects in the temperature range of – 90 to – 160°С, require computation of thermodynamic properties and phase equilibria. A method of computation of the p... | The Calculation of Thermodynamic Properties of Multicomponent Refrigerant Blends — Working Fluids of Throttling Low-Temperature Refrigeration Machines | 10.1007/s10556-020-00724-9 |
2020-03-01 | The effect of austempering time after the bainitic transformation on the microstructure and property in a low-carbon bainite steel was investigated by metallography and dilatometry. The results showed that by prolonging the austempering time after the bainite transformation, the amount of large-size martensite/austenit... | Effect of austempering time on microstructure and properties of a low-carbon bainite steel | 10.1007/s12613-019-1881-y |
2020-03-01 | Abstract— Structure and mechanical characteristics of the 12Kh15G9ND stainless austenitic steel (wt %: Fe‒0.12C–(14.0–16.5)Cr–(8.5–10.5)Mn–(1.0–1.5)Ni–2.0Cu–0.060P–0.030S–0.2N) after high-temperature helical rolling followed by cold longitudinal rolling was studied by optical metallography, scanning electron and transm... | Structure and Deformation Properties of Austenitic Stainless Steel | 10.1134/S0031918X20010172 |
2020-03-01 | Abstract Low temperature (LT) is an important elicitor that triggers anthocyanin biosynthesis. To investigate whether the reactive oxygen species (ROS) produced via RBOH are involved in this process, we analysed the function and mechanism of ROS produced via RBOH during LT-induced anthocyanin biosynthesis in Begonia se... | ROS Produced via BsRBOHD Plays an Important Role in Low Temperature-Induced Anthocyanin Biosynthesis in Begonia semperflorens | 10.1134/S1021443720020181 |
2020-03-01 | Heteroatom doping and three-dimensional (3D) porous structures are critical to the performance of graphene supercapacitor electrode materials. However, the conventional methods, such as chemical vapor deposition (CVD) and hydrothermal synthesis, require tedious processes and harsh conditions. In this work, we describe ... | Synthesis of three-dimensional nitrogen/sulfur-co-doped graphene hydrogels at low temperature and atmospheric pressure for supercapacitor materials | 10.1007/s11581-019-03322-9 |
2020-03-01 | Results of a study of the low-cycle fatigue of singe crystals with orientations 〈001〉 and 〈111〉 from rhenium-containing refractory nickel alloy ZhS32 and of specimens of alloy ZhS32 obtained by selective laser melting on a single-crystal substrate from alloy ZhS32 at “soft” loading cycles (the controlled parameter is t... | Low-Cycle Fatigue of Refractory Nickel Alloy Zhs32 Obtained by Directed Crystallization and Selective Laser Melting on a Single-Crystal Substrate | 10.1007/s11041-020-00485-5 |
2020-03-01 | Abstract This study is to fabricate a composite substrate (Ni7W/Ni12W/Ni7W) with weak magnetization, strong reinforcement, and improved cube texture via Rolling Assisted Biaxially Textured Substrates (RABiTS) route. The formation of cube texture with reduction in twin boundaries due to recrystallization annealing was i... | Effect of Annealing Temperature on Cube Texture Formation in Ni7W/Ni12W/Ni7W Compound Substrate | 10.1134/S0031918X20030060 |
2020-03-01 | High-performance low- k and low-loss circuit materials are urgently needed in the field of microelectronics due to the upcoming Fifth-Generation Mobile Communications Technology (5G Technology). Herein, a facile design strategy for non-fluorinated intrinsic low- k and low-loss polyimides is reported by fully considerin... | A Facile Strategy for Non-fluorinated Intrinsic Low-k and Low-loss Dielectric Polymers: Valid Exploitation of Secondary Relaxation Behaviors | 10.1007/s10118-020-2339-4 |
2020-03-01 | Adsorption dehydration of natural gas plays an important part in LNG production. The primary goal of this research is increasing efficiency of adsorption dehydration of the gas preparatory to its liquefaction. The results of comparative evaluation and determination of the optimum thermobaric parameters of the process o... | Comparative Evaluation of Adsorbents for Natural Gas Dehydration at Liquefied Natural Gas Plant | 10.1007/s10553-020-01107-9 |
2020-03-01 | In this paper, we study a compact source of low-temperature cold atmospheric plasma based on a piezoelectric transformer used as a high-voltage source. This device can produce a direct piezo-discharge in the atmosphere, a classical dielectric barrier discharge, and a discharge in a noble gas flow. We have estimated the... | Study of Characteristics of the Cold Atmospheric Plasma Source Based on a Piezo Transformer | 10.1007/s11182-020-01948-1 |
2020-03-01 | The problem of achieving a higher level of ductility of pipe steels of strength grades K60 (X70) and K65 (X80) is described. Results of laboratory and industrial experiments are shown, and requirements for pipe microstructure with improved deformation capacity are formulated. Technology is described providing the speci... | Development of Rolled Product Manufacturing Technology for Pipes with High Deformation Capacity | 10.1007/s11015-020-00943-8 |
2020-03-01 | Abstract —The possibility of increasing the wear resistance of ductile VCh500-7 iron by isothermal quenching using a new method is studied. It differs in that cooling and holding are carried out according to the water–furnace scheme, not in a molten salt and alkali, as in the current technology. An increased level of w... | Influence of Isothermal Quenching Modes on the Wear Resistance of High-Strength Cast Iron | 10.3103/S1068366620020087 |
2020-03-01 | A quick low-cost method for investigating low-temperature pumpability of fuels for diesel engines of land-based equipment, which enables modeling of the delivery process under dynamic conditions depending on the factors that govern this process and determination of the quantitative characteristics of the effect of comp... | A New Method for Investigating Low-Temperature Pumpability of Fuels for Land-Based Diesel Engines Under Dynamic Conditions | 10.1007/s10553-020-01106-w |
2020-03-01 | The paper presents the results of the structure and properties modification of 20Cr23Ni18 (AISI 310) high chrome austenitic stainless steel after the exposure to the low energy high current pulsed electron beam (LEHCPEB) irradiation. The AISI 310 is used to manufacture machine components and mechanisms operating at 100... | High Chrome Steel Modified by High-Current Pulsed Electron Beam | 10.1007/s11182-020-01949-0 |
2020-03-01 | The experiments of contact ultrasound intensified heat pump drying (CUHPD) of kiwifruit slices were conducted to investigate the effect of ultrasonic power on dehydration process and water migration of kiwifruit during CUHPD. The results clarified that contact ultrasound (CU) application could reduce the drying time of... | Effect of Ultrasonic Power on Water Removal Kinetics and Moisture Migration of Kiwifruit Slices During Contact Ultrasound Intensified Heat Pump Drying | 10.1007/s11947-019-02401-z |
2020-03-01 | Abstract A low-temperature solution-based method for the production of hybrid organic-inorganic nanocomposite films based on nanoscale cellulose and magnetic iron oxide nanoparticles (CNC/Fe 3 O 4 ) was developed. The obtained nanomaterials were investigated by scanning electron microscopy (SEM), dynamic light scatteri... | Preparation of Hybrid Nanocomposites Based on Nanoscale Cellulose and Magnetic Nanoparticles with Photocatalytic Properties | 10.1134/S2075113320020100 |
2020-03-01 | 1-[(5-Phenyl-1,3, 4-oxadiazol-2-yl)thio] acetone (POTA) was synthesized and tested as a new corrosion inhibitor for low carbon steel in 1 M hydrochloric acid. The diagnosis of POTA was carried out by FTIR and NMR analysis. Inhibitor performance was investigated using mass loss technique. POTA was acted as a moderate co... | Performance of Synthesized Acetone Based Inhibitor on Low Carbon Steel Corrosion in 1 M HCl Solution | 10.1007/s42250-019-00104-8 |
2020-03-01 | Methylmercury (MeHg) is one of the most potent neurotoxins. It is produced in nature through the methylation of inorganic divalent mercury (Hg II ) by phylogenetically diverse anaerobic microbes. The mechanistic understanding of the processes that govern the extent of bacterial export of MeHg, its bioaccumulation, and ... | Determination of picomolar levels of methylmercury complexes with low molecular mass thiols by liquid chromatography tandem mass spectrometry and online preconcentration | 10.1007/s00216-020-02389-y |
2020-03-01 | Abstract It is shown that transient processes arising in the growth chamber of a molecular beam epitaxy (MBE) system influence the structure of interfaces and electron spectrum of quantum wells in GaAs/Al x Ga 1 – x As heterostructures used for the creation of photodetectors (PDs) operating in the mid-IR range. These p... | The Influence of Interfacial Effects on the Electron Spectrum of GaAs/AlGaAs Structures Used for the Creation of Mid-IR Photodetectors | 10.1134/S1063785020030256 |
2020-03-01 | Our knowledge is limited on how weaned mammals adjust to environmental events in the absence of maternal assistance in the polar north. With the expectation that weaned offspring should express the adaptive potential of the mature phenotype, we determined their appetite and body mass responses to extreme cold. Between ... | Phenotypic plasticity following weaning: winter body mass trends and food intake in relation to temperature by an arctic ungulate | 10.1007/s00300-020-02623-4 |
2020-03-01 | Waterborne difunctional polyacrylate with long fluorinated side chains and epoxy groups (WALF) was successfully synthesized and used as emulsifier and reactive surface modifier for epoxy resin. The structure of WALF was characterized by FTIR and 1 H NMR. In order to investigate the effect of the length and the content ... | Waterborne epoxy resins modified by reactive polyacrylate modifier with fluorinated side chains | 10.1007/s11998-019-00288-1 |
2020-03-01 | 3D printed parts made from Polylactic acid (PLA) have a brittle nature when subjected to out-of-plane loading, e.g., impact. In this paper, we report the use of a pendulum impact test apparatus along with a high-speed camera and an Infrared (IR) thermography system to investigate impact damage characteristics of PLA 3D... | Experimental characterization of 3D printed thermoplastic plates subjected to low velocity impact | 10.1007/s00170-020-05120-4 |
2020-03-01 | The paper presents the results of modification of the silumin surface layer using a multicycle processing technique which combines the formation of the film (titanium)-substrate (silumin) system and the low energy high current pulsed electron beam (LEHCPEB) irradiation of submillisecond duration in one cycle. A KOMPLEX... | Structure and Properties of Silumin Surface after Vacuum Arc Plasma-Assisted Deposition of Coatings Irradiated by Low Energy High Current Pulsed Electron Beam | 10.1007/s11182-020-01953-4 |
2020-03-01 | The low-velocity impact behavior of polypropylene- core-based sandwich composites reinforced with basalt/epoxy facesheets was investigated by drop-weight impact tests. The impact resistance of composite samples was characterized for various impact energies according to ASTM standards. Also, the effect of facesheet thic... | Low-Velocity Impact Tests on Basalt Fiber/Polypropylene Core Honeycomb Sandwich Composites | 10.1007/s11029-020-09866-6 |
2020-03-01 | A glucose-sensitive polymer, poly( N -isopropylacrylamide- co -2-acrylamidophenylboronic acid) (P(NIPAM- co -2-AAPBA)), was synthesized by reversible addition fragmentation chain transfer (RAFT) copolymerization. Addition of glucose results in reduced solubility and hence increased turbidity, rather than the normal inc... | Mechanistic insights into the novel glucose-sensitive behavior of P(NIPAM-co-2-AAPBA) | 10.1007/s11426-019-9680-6 |
2020-03-01 | Intraductal carcinomas (IDCs) of salivary gland are rare neoplasms. Here, we report a case of IDCs harboring TRIM27 - RET fusion with mixed low grade and apocrine types. A 79-year-old male presented with slowly-growing left parotid mass for 2.5 years. Histologically, the tumor demonstrated two distinct morphologies; a ... | Intraductal Carcinoma of Salivary Glands Harboring TRIM27-RET Fusion with Mixed Low Grade and Apocrine Types | 10.1007/s12105-018-0996-1 |
2020-03-01 | Abstract Prototypes of high-current electrical contacts W70Cu30 with a frameless packing of dispersed W particles were obtained using precrystallization low-frequency vibration of the compositions “copper melt–uncompacted powder W.” Samples were tested for arc resistance in air in a laboratory device that simulates the... | Synthesis of Arc-Resistant W70Cu30 Composite Alloy with Frameless Placing of Thin-Dispersed Tungsten Phase | 10.1134/S2075113320020070 |
2020-03-01 | In this study, photocatalytic coatings have been prepared by the sol-gel method and applied by spraying on glazed ceramic tiles. This coating has been applied on the tile surface at 400 °C as double firing for 1 h. At this temperature, the coating holds on the surface stronger and at the same time, the anatase form has... | Coating solution with high photocatalytic activity on ceramic surfaces at low temperature | 10.1007/s41779-019-00341-7 |
2020-03-01 | In this paper, the design of low-noise, low-power transimpedance amplifier (TIA) is presented for a miniaturized amperometric based continuous blood glucose monitoring system for wearable devices. The proposed multi-stage cascode common source transimpedance amplifier circuit is designed and implemented in a 180 nm CMO... | A low-power low-noise multi-stage transimpedance amplifier for amperometric based blood glucose monitoring systems | 10.1007/s10470-020-01600-5 |
2020-03-01 | A submerged anaerobic membrane bioreactor (SAnMBR) was used to treat low-concentration domestic sewage. The effects of hydraulic retention time (HRT) and organic load (OLR) on chemical oxygen demand (COD) removal, methanogenesis, and membrane fouling of the system were investigated. The SAnMBR achieved good COD removal... | Submerged anaerobic membrane bioreactor for low-concentration domestic sewage treatment: performance and membrane fouling | 10.1007/s11356-019-07135-1 |
2020-03-01 | Abstract Palladium nanoparticles (NP) immobilized on metal scavengers (Smopex®-234, Smopex®-111, PVPy, 1% w/w) have been tested in the acyl Sonogashira reactions between terminal acetylenes and acid chlorides. Pd/PVPy resulted especially effective in the synthesis of alkynyl ketones with different stereoelectronic prop... | Polyvinylpyridine-Supported Palladium Nanoparticles: A Valuable Catalyst for the Synthesis of Alkynyl Ketones via Acyl Sonogashira Reactions | 10.1007/s10562-019-02959-5 |
2020-03-01 | Abstract The effect of priming winter rye ( Secale cereale L., var. Pamiat’ Khudoerko) and wheat ( Triticum aestivum L., var. Dosconala) seeds with nitrogen oxide (NO) donor sodium nitroprusside (SNP) on their frost resistance was studied. The NO donor at concentrations of 0.1–0.5 mM increased the cold-hardening abilit... | Nitrogen Oxide Donor Enhances Cold-Induced Changes in Antioxidant and Osmoprotective Systems of Cereals | 10.1134/S000368382002009X |
2020-03-01 | By combining experimental results and a simple model, we offer here an explanation for the role played by the low-angle grain boundaries and the doping with α -Al 2 O 3 nanoparticles in the trapping of the magnetic flux in Bi 1.65 Pb 0.35 Sr 2 Ca 2 Cu 3 O 10+ δ (Bi-2223) ceramic samples. Our model correlates the size o... | Trapping of Magnetic Flux in Bi-2223 Ceramic Superconductors Doped with α-Al2O3 Nanoparticles | 10.1007/s10948-019-05265-8 |
2020-03-01 | Widespread use of aluminum alloys for the fabrication of car body parts is conditional to the use of appropriate welding methods, especially if dissimilar welding must be performed with automotive steel grades. Friction stir welding (FSW) is considered to be a reasonable solution to obtain sound aluminum-steel joints. ... | Effect of position and force tool control in friction stir welding of dissimilar aluminum-steel lap joints for automotive applications | 10.1007/s40436-019-00290-1 |
2020-03-01 | Low consistency (LC) refining of (chemi-)thermomechanical pulp (TMP) provides an energy efficient alternative to high consistency refining for pulp property development. However, the benefit of LC refining is often limited by excessive fibre shortening, lower tear strength and a reduction of bulk caused by the refining... | Low consistency refined ligno-cellulose microfibre: an MFC alternative for high bulk, tear and tensile mechanical pulp papers | 10.1007/s10570-019-02956-2 |
2020-03-01 | Environmental contamination and ingestion of the radionuclide Cesium-137 ( 137 Cs) is a large concern in fallout from a nuclear reactor accident or improvised nuclear device, and highlights the need to develop biological assays for low-dose rate, internal emitter radiation. To mimic low-dose rates attributable to fallo... | DNA damage response in peripheral mouse blood leukocytes in vivo after variable, low-dose rate exposure | 10.1007/s00411-019-00825-x |
2020-03-01 | In this study, the low frequency electromagnetic casting (LFEC) technology was adopted to fabricate 2195 Al–Li alloy. The microstructure and solid solubility of as-cast 2195 alloys, as well as the second phase precipitation and tensile properties after aging, were investiagated and compared with the counterpart direct ... | Low Frequency Electromagnetic Casting of 2195 Aluminum–Lithium Alloy and Its Effects on Microstructure and Mechanical Properties | 10.1007/s40195-019-00992-2 |
2020-03-01 | Purpose Patients with low back pain (LBP) rarely have serious underlying pathology but frequently undergo inappropriate imaging. A range of guidelines and red flag features are utilised to characterise appropriate imaging. This scoping review explores how LBP imaging appropriateness is determined and calculated in stud... | Defining and measuring imaging appropriateness in low back pain studies: a scoping review | 10.1007/s00586-019-06269-7 |
2020-03-01 | Abstract This paper presents the results of measuring the thresholds of explosive decomposition of PETN–coal under the action of laser radiation pulses ( $$\lambda$$ λ = 1064 nm and $$\tau$$ τ = 14 ns). Samples whose thickness is 1 mm and whose densities are 1.1 and 1.7 g/cm 3 with inclusions of submicron particles o... | Influence of the Density of PETN–Coal Composites on the Threshold Characteristics of Explosive Decomposition in Laser Initiation | 10.1134/S0010508220020148 |
2020-03-01 | Sea cucumbers have an important economic value and high demand. Despite that, there is a lack of knowledge about their biology, ecology and habitat distribution patterns, which is very important for sea cucumber stock management, establishment and sizing of no-take zones, restocking actions and selection of grow-out ar... | Habitat associations and seasonal abundance patterns of the sea cucumber Holothuria arguinensis at Ria Formosa coastal lagoon (South Portugal) | 10.1007/s10452-020-09746-0 |
2020-03-01 | Fines migration induced by injection of low-salinity water (LSW) into porous media can lead to severe pore plugging and consequent permeability reduction. The deep-bed filtration (DBF) theory is used to model the aforementioned phenomenon, which allows us to predict the effluent concentration history and the distributi... | Stochastic and upscaled analytical modeling of fines migration in porous media induced by low-salinity water injection | 10.1007/s10483-020-2583-9 |
2020-03-01 | Introduction Postmenopausal osteoporosis and dyslipidemia are well-known skeletal and metabolic changes in middle-aged women. We investigated the effects of combined treatments with a selective estrogen receptor modulator (SERM) and exercise on bone and fat parameters in ovariectomized (OVX) rats. Materials and Methods... | Effects of bazedoxifene and low-intensity aerobic exercise on bone and fat parameters in ovariectomized rats | 10.1007/s00774-019-01045-5 |
2020-03-01 | Abstract The predominance of the maximum at 800 nm for the light-harvesting complex LH4 (B800) and at 850 nm for LH2 (B800-850) from Rps. palustris is determined by the composition of αβ-polypeptides and pigments. In low light (LL) for Rps. palustris , strain KM 286 (1e5), along with LH4, the LL LH2 complex was synthes... | A New Type of Light-Harvesting Complex Detected when Growing Rhodopseudomonas palustris under Low Light Intensity Conditions | 10.1134/S160767292002012X |
2020-03-01 | We present the biostratigraphical events, ammonites and foraminifera from the Pliensbachian (Spinatum Chronozone) to the Toarcian (Bifrons Chronozone) in San Miguel de Aguayo. We sampled the profile layer by layer for ammonites (400 specimens in 86 successive levels), and we extracted 19 samples for foraminifera (4858 ... | Lower Toarcian ammonite and foraminifera assemblages in the San Miguel de Aguayo Section (Basque-Cantabrian Basin, Spain) | 10.1007/s41513-019-00118-8 |
2020-03-01 | This study analyzed the effects of photobiomodulation (PBM) with low-level laser therapy on nociceptive behavior and neuronal activity in the trigeminal nucleus after experimental unilateral temporomandibular joint (TMJ) disc injury. The animals were divided into 4 groups ( n = 10 each): group 1, surgical injury of th... | The effectiveness of photobiomodulation in the management of temporomandibular pain sensitivity in rats: behavioral and neurochemical effects | 10.1007/s10103-019-02842-0 |
2020-03-01 | A novel four quadrant FGMOS analog multiplier having properties such as low voltage-low power and wide input linearity range is presented. Power consumption of the proposed multiplier is 26.2 nW and the input swing is rail-to-rail which is obtained by choosing the ratio of input capacitances to total capacitance of FGM... | Ultra low power wide range four quadrant analog multiplier | 10.1007/s10470-019-01491-1 |
2020-03-01 | “Conventional” and “organic” farming systems have been compared in many studies. However, the lack of concern about the diversity of both conventional and organic farming systems can be imputed to the oft-quoted methodological difficulties of comparing conventional and organic systems. Indeed, the analysis of articles ... | Conventional versus organic farming systems: dissecting comparisons to improve cereal organic breeding strategies | 10.1007/s13165-019-00249-3 |
2020-03-01 | Most phyto-remediation studies have been conducted merely on a single type of contaminant element without consideration of the influence of other co-existent contaminants. In this study, Vetiveria zizanioides (Linn.) Nash was evaluated in both single and mixed heavy metal (Cd, Pb, Cu and Zn) spiked contaminated soil. T... | Evaluation of Vetiver Grass Uptake Efficiency in Single and Mixed Heavy Metal Contaminated Soil | 10.1007/s40710-019-00418-2 |
2020-03-01 | Runtime verification aims at extracting information from a running system, and using it to detect and possibly react to behaviors violating a given correctness property. Decentralized runtime verification involves a set of monitors observing the behavior of the underlying system. When the monitors themselves can fail, ... | A lower bound on the number of opinions needed for fault-tolerant decentralized run-time monitoring | 10.1007/s41468-019-00047-6 |
2020-03-01 | This study investigates the longitudinal flight control problem of air-breathing hypersonic vehicles subject to the asymmetric angle of attack (AoA) constraint. With the help of introduced tangent errors, the proposed control becomes low complexity in both structure and expression, especially for the non-adaptive contr... | Low-complexity hypersonic flight control with asymmetric angle of attack constraint | 10.1007/s11071-020-05531-8 |
2020-03-01 | Plant interactions with single symbionts of nitrogen fixing bacteria or mycorrhizal fungi are well studied. However, less is known about how plants interact with multiple symbiont species. The aim of this study was to assess whether multiple symbionts had a synergistic effect on host plant performance compared with a s... | The effect of Frankia and multiple ectomycorrhizal fungil species on Alnus growing in low fertility soil | 10.1007/s13199-020-00666-z |
2020-03-01 | This paper deals with the noise optimization of a low-power front-end amplifier (FEA) integrating a band-pass filter for EEG signal recording. The AC-coupled and capacitive feedback structures have been adopted in order to reject the large DC offset generated at the electrode–skin interface. A high open-loop gain with ... | Noise Optimization of CMOS Front-End Amplifier for Embedded Biomedical Recording | 10.1007/s13369-020-04347-3 |
2020-03-01 | Purpose This study examined the post-activation potentiation effects of body-weight lunge exercises with blood-flow restriction on jump performance. Eighteen anaerobically trained men took part in this study across 3 weeks. Methods During the first week, participants were familiarised with the lunge exercises with bloo... | Lunge exercises with blood-flow restriction induces post-activation potentiation and improves vertical jump performance | 10.1007/s00421-020-04308-6 |
2020-02-28 | Thermal waters in Poland occur in several different geothermal regions, but the best parameters for their effective utilisation are connected i.a. with the area of Polish Lowlands. One of the most prospective areas in the central part of Polish Lowlands for managing geothermal waters for various purposes is the area of... | Thermal waters of central Poland: a case study from Mogilno–Łódź Trough, Poland | 10.1007/s12665-020-8855-2 |
2020-02-27 | Topographic relief in arc-trench systems is thought to be formed by plate subduction; however, few quantitative investigations have so far been reported, with respect to the related mountain building process. This study applies apatite and zircon (U–Th)/He thermochronometry (AHe, ZHe, respectively) to Cretaceous granit... | (U–Th)/He thermochronometric mapping across the northeast Japan Arc: towards understanding mountain building in an island-arc setting | 10.1186/s40623-020-01151-z |
2020-02-24 | Background Low cardiac output syndrome (LCOS) is an important complication of cardiac surgery. It is associated with increased morbidity and mortality. The incidence of LCOS after surgery is high in patients with congenital heart disease (CHD). Therefore, determining the risk factors of LCOS has clinical significance f... | Risk factors for low cardiac output syndrome in children with congenital heart disease undergoing cardiac surgery: a retrospective cohort study | 10.1186/s12887-020-1972-y |
2020-02-21 | The petrology, mineral major and trace-element concentrations, and garnet oxygen isotopic composition of low-MgO (11–16 wt%) eclogites from the Obnazhennaya kimberlite, Siberian craton, are used to infer their petrogenesis. These eclogites contain two types of compositionally distinct garnet: granular coarse garnet, an... | The origin of low-MgO eclogite xenoliths from Obnazhennaya kimberlite, Siberian craton | 10.1007/s00410-020-1655-6 |
2020-02-20 | The decrease of the growth temperature of platinum (Pt) thin film on silicon substrate was studied using Ca 2 Nb 3 O 10 nanosheets (CNOns) as seed layer. These nanosheets were obtained by the delamination of the layered perovskite KCa 2 Nb 3 O 10 and they were deposited on silicon substrates by the Langmuir–Blodgett me... | Highly textured Pt thin film grown at very low temperature using Ca2Nb3O10 nanosheets as seed layer | 10.1007/s42452-020-2271-9 |
2020-02-19 | Background Blueberry ( Vaccinium spp. ) is a small berry with high economic value. Although cold storage can extend the storage time of blueberry to more than 60 days, it leads to chilling injury (CI) displaying as pedicle pits; and the samples of 0 °C-30 days was the critical point of CI. However, little is known abou... | Transcriptome analysis of postharvest blueberries (Vaccinium corymbosum ‘Duke’) in response to cold stress | 10.1186/s12870-020-2281-1 |
2020-02-19 | Thermomechanically controlled processed steels have gained attention increasingly by many industries. In this research S700MC steel is successfully welded using low power pulsed Nd:YAG laser and the microstructure and mechanical properties are investigated. It is shown that the average power and overlapping factor both... | Microstructure and mechanical properties of low power pulsed Nd:YAG laser welded S700MC steel | 10.1007/s12046-020-1279-6 |
2020-02-18 | Background Many countries have made substantial progress in scaling-up and sustaining malaria intervention coverage, leading to more focalized and heterogeneous transmission in many settings. Evaluation provides valuable information for programmes to understand if interventions have been implemented as planned and with... | Evaluating malaria programmes in moderate- and low-transmission settings: practical ways to generate robust evidence | 10.1186/s12936-020-03158-z |
2020-02-17 | Background Geophytes possess specialized storage organs - bulbs, tubers, corms or rhizomes, which allow their survival during unfovarable periods and provide energy support for sprouting and sexual and vegetative reproduction. Bulbing and flowering of the geophyte depend on the combined effects of the internal and exte... | Crosstalk in the darkness: bulb vernalization activates meristem transition via circadian rhythm and photoperiodic pathway | 10.1186/s12870-020-2269-x |
2020-02-17 | The CO 2 adsorption selectivity of plain activated carbon nanofibers (ANF) is generally low. For enhancement, nitrogen functionalities favorable for CO 2 adsorption are usually tethered to the ANF. In the current study, we adopted chemical impregnation using 0.5 wt% tetraethylenepentamine (TEPA) solution as an impregna... | TEPA impregnation of electrospun carbon nanofibers for enhanced low-level CO2 adsorption | 10.1186/s40580-020-0217-y |
2020-02-17 | The manuscript reports on the influence of 40 keV Ag –ve ion bombardment with different fluences on the microstructural and optical properties of thermally evaporated Bi/GeSe 2 bilayer thin films. Two different fluences (5 × 10 14 ions cm −2 and 1 × 10 15 ions cm −2 ) of Ag –ve ions were used to irradiate the thin film... | Influence of low energy Ag ion irradiation for formation of Bi2Se3 phase from Bi/GeSe2 heterostructure thin films | 10.1007/s00339-020-3390-2 |
2020-02-17 | Based on C (wild) to T (mutant) transition at amino acid position 1432 bp of lpa1-1 gene, two dominant markers each specific to wild type ( LPA1 ) and mutant ( lpa1-1 ) allele were developed and validated across seven F 2 populations. Joint segregation of these markers behaved in co-dominant fashion, clearly distinguis... | Development and validation of breeder-friendly gene-based markers for lpa1-1 and lpa2-1 genes conferring low phytic acid in maize kernel | 10.1007/s13205-020-2113-x |
2020-02-11 | The depositional history of the paleo-submarine channel plays an instrumental role in controlling the present-day heat flows and geothermal gradients of the Lower Fangliao Basin, a slope basin situated at the upper accretionary wedge, offshore southwestern Taiwan. This wedge is formed from the collision of the Luzon Ar... | Depositional influence of submarine channel migration on thermal properties of the Lower Fangliao Basin, offshore southwestern Taiwan | 10.1007/s11001-020-09401-1 |
2020-02-10 | Total solar eclipse (TSE) coronal large- and small-scale events were reported in the historical literature but a definite synoptic coverage was missing for studying a relationship with the more general magnetic context of the solar-disk. We here analyze temporal changes in the solar corona before, during, and after the... | Solar Total Eclipse of 21 August 2017: Study of the Inner Corona Dynamical Events Leading to a CME | 10.1007/s11207-020-1586-4 |
2020-02-07 | Background Newborn mortality in Oceania declined slower than other regions in the past 25 years. The World Health Organization (WHO) introduced the Early Essential Newborn Care program (EENC) in 2015 in Solomon Islands, a Small Island Developing State, to address high newborn mortality. We explored knowledge and skills... | Healthcare worker knowledge and skills following coaching in WHO early essential newborn care program in the Solomon Islands: a prospective multi-site cohort study | 10.1186/s12884-020-2739-z |
2020-02-06 | Background Node is the central organ of transferring nutrients and ions in plants. Cadmium (Cd) induced crop pollution threatens the food safety. Breeding of low Cd accumulation cultivar is a chance to resolve this universal problem. This study was performed to identify tissue specific genes involved in Cd accumulation... | Transcriptome analysis reveals the roles of stem nodes in cadmium transport to rice grain | 10.1186/s12864-020-6474-7 |
2020-02-05 | In the present work, curing reaction of benzoxazine was studied with the incorporation of different weight percentage of polypyrrole (PPy). Conventional benzoxazine derived from Bisphenol-F, aniline (BF-a) and bio-based benzoxazine derived from cardanol, furfurylamine (C-f) were synthesized and studied. Significant cha... | Polypyrrole inter-layered low temperature curing benzoxazine matrices with enhanced thermal and dielectric properties | 10.1007/s10965-020-2022-z |
2020-02-05 | Background Rice ( Oryza sativa L.) is generally sensitive to low temperatures, and in production systems that use direct-seeding, low-temperature germinability (LTG) is a desired trait. Previously, the QTLs, qLTG1 and qLTG3, that control LTG, were mapped using the BC 4 F 8 population, which is a cross of Korean elite c... | Characterization of a New qLTG3–1 Allele for Low-temperature Germinability in Rice from the Wild Species Oryza rufipogon | 10.1186/s12284-020-0370-2 |
2020-02-03 | In this study, we developed a multifunctional ultrasound (US) therapeutic agent that encapsulates perfluoropentane (PFP) into ferritin (FRT) and conjugates the tumor-targeting molecule folic acid (FA) (FA-FRT-PFP). The prepared FA-FRT-PFP had an average particle diameter of 42.8 ± 2.5 nm, a zeta potential of − 41.1 ± 1... | pH- and acoustic-responsive platforms based on perfluoropentane-loaded protein nanoparticles for ovarian tumor-targeted ultrasound imaging and therapy | 10.1186/s11671-020-3252-z |
2020-02-01 | Claw poles are a key component of automobile generators. The output power performance of the generator is very dependent on the magnetic properties of its claw poles. Plastic deformation is known to significantly change the magnetic behavior of ferromagnetic materials in claw poles. In this paper, changes in the magnet... | Effect of plastic strain and forming temperature on magnetic properties of low-carbon steel | 10.1007/s12613-019-1905-7 |
2020-02-01 | Low-temperature energy storage system (LTESS) stores the thermal energy from the sun, exhaust gases and waste heat from industries and other sources. Phase changing materials (PCM) are used as the energy storage medium for this system. The advantage of PCM is that it has higher energy storage density, with low volume. ... | Investigation of latent heat storage system using graphite micro-particle enhancement | 10.1007/s10973-019-08625-7 |
2020-02-01 | In this paper, the results on the conductivity of silicon enriched SiO x films and the influence of low temperature annealing at 450 °C in the H 2 and vacuum are presented. SiO x films were prepared on Si substrate by low pressure chemical vapor deposition (LP CVD) with using SiH 4 , N 2 O as the precursor gases and H ... | Influence of Low-Temperature Annealing on the Electrical Conductivity of SiOx Films | 10.1007/s12633-019-00149-x |
2020-02-01 | Conventional titanium oxide (TiO 2 ) as an electron transport layer (ETL) in hybrid organic-inorganic perovskite solar cells (PSCs) requires a sintering process at a high temperature to crystalize, which is not suitable for flexible PSCs and tandem solar cells with their low-temperature-processed bottom cell. Here, we ... | A low-temperature TiO2/SnO2 electron transport layer for high-performance planar perovskite solar cells | 10.1007/s40843-019-9586-x |
2020-02-01 | The corrosion behavior of steel exposed to a simulated marine atmosphere at different temperatures (from 30 to 60 °C) has been investigated. The corroded specimens were analyzed gravimetrically and by scanning electron microscopy, x-ray diffraction and electrochemical techniques. The results revealed that the morpholog... | Effect of Temperature on Corrosion Behavior of Low-Alloy Steel Exposed to a Simulated Marine Atmospheric Environment | 10.1007/s11665-020-04649-5 |
2020-02-01 | In this study, hafnium oxide (HfO 2 ) thin films were deposited by spin coating technique at different low deposition temperatures (150 °C, 200 °C and 250 °C). The properties of the films were measured by UV–visible spectroscopy, X-ray diffraction and Fourier transform infrared spectroscopy (FTIR) in the attenuated tot... | Analysis and Study of Characteristic FTIR Absorption Peaks in Hafnium Oxide Thin Films Deposited at Low-Temperature | 10.1007/s42341-019-00160-4 |
2020-02-01 | High-efficiency turbine engines highly rely on the further improvement of the novel technologies related to combustion, cooling and thermal barrier coating (TBC) with the increase in inlet temperatures. Thermal barrier coatings with higher thermal stability and lower thermal conductivity (low- k ) than current 8YSZ TBC... | Toward Durable Thermal Barrier Coating with Composite Phases and Low Thermal Conductivity | 10.1007/s11666-020-00979-x |
2020-02-01 | Hydroprocessing of low-temperature coal tar from Shanbei (SLCT) on Ni–Mo–W/γ–Al 2 O 3 catalysts was carried out in an autoclave. The compositions and structures of asphaltenes obtained from hydrotreated products at temperatures of 350–410 °C have been characterized by elemental analysis, FTIR, 1 H NMR and fluorescence ... | Investigation on asphaltene compositions and structures during hydroprocessing of low-temperature coal tar at different reaction temperatures on Ni–Mo–W/γ–Al2O3 catalysts | 10.1007/s11144-019-01715-5 |
2020-02-01 | The socket is the most critical part of every lower-limb prosthetic system, since it serves as the interfacial component that connects the residual limb with the artificial system. However, many amputees abandon their socket prostheses due to the high-level of discomfort caused by the poor interaction between the socke... | Sensing and actuation technologies for smart socket prostheses | 10.1007/s13534-019-00137-5 |
2020-02-01 | Abstract The promoting effect of Ce on V-W/Ti catalyst for selective catalytic reduction (SCR) of NO x by NH 3 was studied. Compared with the original V-W/Ti samples, addition of Ce contributed better NH 3 -SCR performance. The H 2 O and SO 2 resistance of Ce modified V-W/Ti catalyst was improved by the different impre... | Ce-Doped V2O5-WO3/TiO2 with Low Vanadium Loadings as SCR Catalysts and the Resistance of H2O and SO2 | 10.1007/s10562-019-03077-y |
2020-02-01 | In this work, the sintering temperatures of Mg 2 Al 4 Si 5 O 18 ceramics was reduced to ∼ 900°C by adding BaCu(B 2 O 5 ) (BCB). Mg 2 Al 4 Si 5 O 18 reacts with BCB to form the second phase BaAl 2 Si 2 O 8 . As the sintering temperature was 950°C, the second phase transformed from hexagonal BaAl 2 Si 2 O 8 to monoclinic... | Microwave Dielectric Properties of Low-Temperature Co-fired Mg2Al4Si5O18-BaCu(B2O5) Ceramics | 10.1007/s11664-019-07830-2 |
2020-02-01 | Abstract— The drum metal properties of the BKZ-160-100FB and TP-85 boilers installed at the Irkutsk TETs-11 combined heat and power plant were investigated after these boilers had been in operation for 259 000 and 224 000 h, respectively, and after they had been subjected to low-temperature restorative heat treatment, ... | The Influence of Low-Temperature Restorative Heat Treatment on the Structure and Mechanical Properties of Boiler Drum Metal after Long-Term Operation | 10.1134/S0040601520020020 |
2020-02-01 | The influence of alkali- and chlorine-containing compounds on the corrosion of superheater alloys has been studied extensively. The current paper instead investigates the corrosive effects of KCl and HCl under conditions relevant to waterwall conditions. A low-alloy (Fe-2.25Cr-1Mo) steel was exposed to KCl(s), 500 vppm... | The Influence of KCl and HCl on the High-Temperature Oxidation of a Fe-2.25Cr-1Mo Steel at 400 °C | 10.1007/s11085-019-09943-9 |
2020-02-01 | Abstract Ecofriendly green biosynthesis of bacterial cellulose (BC) using a low-cost carbon source from the shell extract of Sapindus mukorossi was studied by Komagataeibacter xylinus B2-1. After 7 d of incubation, strain B2-1 produced 1.31 g L −1 BC, which had similar micro-morphology and structural properties to that... | Ecofriendly green biosynthesis of bacterial cellulose by Komagataeibacter xylinus B2-1 using the shell extract of Sapindus mukorossi Gaertn. as culture medium | 10.1007/s10570-019-02868-1 |
2020-02-01 | An optimally designed Dual Source Vertical Tunnel Field Effect Transistors is proposed and investigated using technology computer aided design simulation. The vertical tunnel FET have dispersal of source channel drain in the vertical direction which will enhance the scalability of the simulated device. The benefit of t... | Design and Analysis of Dual Source Vertical Tunnel Field Effect Transistor for High Performance | 10.1007/s42341-019-00154-2 |
2020-02-01 | The study focuses on developing a computational model on low-velocity impact which includes the study of different composite materials, and the materials selected include thermosets such as carbon–epoxy, glass–epoxy and thermoplastic such as Twintex material. The above materials were selected because of their high impa... | Analysis of Industrial Safety Helmet Under Low-Velocity Impact | 10.1007/s11668-019-00716-9 |
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