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Estimation of the poly (ε-caprolactone) [PCL] and α-cyclodextrin [α-CD] stoichiometric ratios in their inclusion complexes [ICs], and evaluation of porosity and fiber alignment in PCL nanofibers containing these ICs

Ganesh Narayanan、Bhupender S. Gupta、Alan E. Tonelli2015-11-17Data in Brief

This paper describes the utilization of Proton-Nuclear Magnetic Resonance spectroscopy ((1)H NMR) to quantify the stoichiometric ratios between poly (ε-caprolactone) [PCL] and α-cyclodextrin (α-CD) present in their non-stoichiometric inclusion complexes [(n-s)-ICs]. This paper further describes the porosity and fiber…

Advanced Sensor and Energy Harvesting MaterialsElectrospun Nanofibers in Biomedical ApplicationsPolymer Nanocomposite Synthesis and Irradiation

Gated Graph Sequence Neural Networks

Yujia Li、Daniel Tarlow、Marc Brockschmidt 等 4 位作者2015-11-17arXiv (Cornell University)

Graph-structured data appears frequently in domains including chemistry, natural language semantics, social networks, and knowledge bases. In this work, we study feature learning techniques for graph-structured inputs. Our starting point is previous work on Graph Neural Networks (Scarselli et al., 2009), which we modi…

Topic ModelingAdvanced Graph Neural NetworksMachine Learning in Materials Science

Improvement of Substitute Bird for Impact Testing

Stefan Andreas Ritt、Alastair Johnson、Heinz Voggenreiter2015-11-17elib (German Aerospace Center)

Bird strike certification relies on testing with real birds being impacted on affected zones of airframes. However, it is known that real bird testing lacks repeatability and has an unknown species’ influence. \nTo overcome these detrimental effects, substitute birds have been developed for many years. They replicate…

High-Velocity Impact and Material BehaviorSports Dynamics and BiomechanicsTransportation Safety and Impact Analysis

Observation of Fine Distribution of Minor Dopants in an Erbium-Doped Fiber Core using a Sample Thinning Technique for Field Emission Electron Probe Microanalysis

Yugo Kubo、Kouji Kuramochi2015-11-17Microscopy and Microanalysis

To observe the fine distribution of minor aluminum and germanium dopants in the erbium-doped fiber (EDF) core of an optical amplifier, a sample thinning technique was applied for field emission electron probe microanalysis (FE-EPMA) together with wavelength-dispersive X-ray spectrometry. This technique significantly i…

Semiconductor materials and devicesElectron and X-Ray Spectroscopy TechniquesIntegrated Circuits and Semiconductor Failure Analysis

Crystal structure of tris(N-methylsalicylaldiminato-κ2N,O)vanadium(III)

Jessica Hilbert、Sven Kabus、Christian Näther 等 4 位作者2015-11-17Acta Crystallographica Section E Crystallographic Communications

The crystal structure of the title compound, [Cr(C8H8NO)3], is isotypic with the vanadium(III) analogue. The asymmetric unit consists of one Cr(3+) cation and three N-methyl-salicylaldiminate anions. The metal cation is octa-hedrally coordinated by three N,O-chelating N-methyl-salicylaldiminate ligands, leading to dis…

Crystal structures of chemical compoundsMagnetism in coordination complexesVanadium and Halogenation Chemistry

A Differential Thermal Analysis Apparatus for Exploring the Glass Transition

William R. Heffner2015-11-17OpenAlex

Glass is among the most common materials in our everyday lives. And yet the science behind this interesting, complex and ubiquitous material is seldom considered in the undergraduate science curriculum. The glass transition (Tg) is both a fundamental and defining concept in understanding the glassy state. To facilitat…

Textile materials and evaluationsRadiative Heat Transfer Studies

Al-10.78Zn-2.78Mg-2.59Cu-0.22Zr-0.047Sr铝合金挤压材的性能

张香丽、许晓静、凌智勇 等 4 位作者2015-11-17Cailiao yanjiu xuebao

摘要研究了A1-10.78Zn.2.78Mg-2.59Cu-0.22Zr-0.047Sr铝合金挤压材在固溶-T652和预回复-固溶-T652时的组织和性能。结果表明:该合金在121℃×24h时效制度下,预回复退火处理可有效细化晶粒(从9.76μm减小到5.56μm),降低晶界平均角度(从23.59°降低至17.41°),显著提高低角度晶界百分比(从53%提高到67%),提高位错强化,并显著抑制再结晶的发生:与固溶.T652相比,预回复-固溶-T652工艺在不降低强度的情况下可提高其晶间和剥落腐蚀性能(最大晶间腐蚀深度从125.0μm减少到91.4/μm,剥落腐蚀从EB级提高到EA级);在预回复-固溶-T652状态下合金的抗拉强度达…

Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesAluminum Alloys Composites Properties

Development of Fracture-Split Connecting Rods Made of Titanium Alloy for Use on Supersport Motorcycles

Tsuyoshi Kubota、Kosuke Doi、Takeshi Murakami 等 5 位作者2015-11-17SAE International Journal of Engines

A connecting rod made of titanium alloy is effective for lower fuel consumption and higher power output comparing to a steel one because the titanium connecting rod enables to reduce the weight of both of reciprocating and rotating parts in an entire engine substantially. But up to now, it has been adopted only to exp…

Metallurgy and Material FormingTitanium Alloys Microstructure and PropertiesMechanical Failure Analysis and Simulation

Characterization of Biodiesel Particle Emission in Trapping and Regeneration Processes on Cordierite Diesel Particulate Filter

Komkla Siricholathum、Preechar Karin、Chinda Charoenphonphanich 等 5 位作者2015-11-17SAE technical papers on CD-ROM/SAE technical paper series

As well-known, the diesel engine has the highest thermal efficiency at the same load as compared with internal combustion engine but its disadvantage is particulate matter (PM) emitted to the atmosphere. The studies of this paper were divided into two parts. The first part studied the quantity of PM from the both dies…

Catalytic Processes in Materials ScienceBiodiesel Production and ApplicationsLubricants and Their Additives

Enhancing the Performance of a Catalyst Formulation for a Big Displacement Motorcycle for Future Emission Regulations, Part 2

Marcus Bonifer、Rainer Kiemel2015-11-17SAE technical papers on CD-ROM/SAE technical paper series

In Europe the next level of emission regulations for motorcycles, Euro IV, is on the verge of introduction, followed by Euro V around 2021. Together with the new emission regulations, the ECE R 40 testing cycle will become obsolete and the more realistic World Motorcycle Testing Cycle (WMTC) will be introduced. Curren…

Catalytic Processes in Materials ScienceElectric and Hybrid Vehicle TechnologiesVehicle emissions and performance

Crystallization behaviour of glyceraldehyde dehydrogenase fromThermoplasma acidophilum

Iuliia Iermak、Oksana Degtjarik、Fabian Steffler 等 5 位作者2015-11-17Acta Crystallographica Section F Structural Biology Communications

The glyceraldehyde dehydrogenase from Thermoplasma acidophilum (TaAlDH) is a microbial enzyme that catalyzes the oxidation of D-glyceraldehyde to D-glycerate in the artificial enzyme cascade designed for the conversion of glucose to the organic solvents isobutanol and ethanol. Various mutants of TaAlDH were constructe…

Biofuel production and bioconversionMicrobial Metabolic Engineering and BioproductionEnzyme Structure and Function

Analysis of Mixture Formation Process in a PFI Motorcycle Engine

Yasuo Moriyoshi、Tatsuya Kuboyama、Hisashi Goto 等 4 位作者2015-11-17SAE technical papers on CD-ROM/SAE technical paper series

PFI (Port Fuel Injection) gasoline engines for motorcycles have some problems such as slow transient response because of wall wet of fuel caused by the injector's layout. Hence, it is important to understand the characteristics of fuel sprays such as droplet size and distribution of fuel concentration. Considering the…

Advanced Combustion Engine TechnologiesMaterial Properties and Applications

丙烯腈-衣康酸共聚物接枝聚乙二醇固-固相变材料的制备及表征

牟思阳、GUO Jing、齐善威 等 6 位作者2015-11-17高等学校化学学报

将衣康酸与丙烯腈共聚,构建具有双端羧基活性点的聚合物骨架,以二苯甲烷二异氰酸酯(MDI)为桥基,将聚乙二醇(PEG)接枝到聚合物骨架上,制备了丙烯腈-衣康酸共聚物接枝聚乙二醇(AIPCMs).采用红外光谱、差示扫描量热、X射线衍射、偏光显微镜、热失重及水静态接触角等方法研究了其结构、相变潜热性能、结晶性能、结晶形态、热稳定性及亲水性.结果表明,合成的AIPCMs具有固-固相变特性及优异的热储能性能,相变潜热达到70.5 J/g.化学接枝改变了AIPCMs中PEG的结晶结构及结晶形态. AIPCMs的热稳定性优异,初始分解温度达289℃,并且其亲水性较好,接触角最小可达33.71°.

Ionic liquids properties and applicationsLayered Double Hydroxides Synthesis and ApplicationsSynthesis and properties of polymers

Self-Field Losses in Superconducting MgB 2 Composite

N. Deniskina、F. Getman2015-11-17IEEE Transactions on Applied Superconductivity

This paper presents an analytical estimate of various self-field losses in the superconducting MgB2cables recently proposed for long-distance (3000 km) dc power transmission. We show the advantages of dc transmission with respect to ac taking into account hysteresis loss estimation, and we optimize the design of MgB2c…

Physics of Superconductivity and MagnetismIron-based superconductors researchSuperconductivity in MgB2 and Alloys

Mechanical behavior of airbag fabrics under quasi-static loading: an experimental evaluation of macro- and meso-scopic properties

S. Zacharski、Frank Ko、Reza Vaziri2015-11-17Textile Research Journal

In this paper the current generation of 350 dtex airbag coated and uncoated fabrics are examined experimentally under a multitude of simple and complex deformations. The geometric dimensions of the fabric architecture and the load–elongation behavior of the yarn constituents are studied. Furthermore, deformational she…

Mechanical Behavior of CompositesTextile materials and evaluationsMaterial Properties and Processing

Physical aging and charge transport in poly(3‐hexylthiophene)

Volodimyr V. Duzhko2015-11-17physica status solidi (a)

The bulk charge transport in a series of regioregular poly(3‐hexylthiophene) materials with different molecular weights (MW) has been studied by the time‐of‐flight technique. Three distinct temperature regions with transitions at ∼60 and ∼140 °C in lower MW material (9.6 kDa), and four regions with an additional trans…

Organic Electronics and PhotovoltaicsConducting polymers and applicationsChemical and Physical Properties of Materials

Understanding machine‐learned density functionals

Li Li、John Snyder、Isabelle M. Pelaschier 等 9 位作者2015-11-17International Journal of Quantum Chemistry

Machine learning (ML) is an increasingly popular statistical tool for analyzing either measured or calculated data sets. Here, we explore its application to a well‐defined physics problem, investigating issues of how the underlying physics is handled by ML, and how self‐consistent solutions can be found by limiting th…

Advanced NMR Techniques and ApplicationsMachine Learning in Materials ScienceX-ray Diffraction in Crystallography

OPTIMAL DESIGN OF CYLINDRICAL PBX BY THE ENTRANSY DISSIPATION EXTREMUM PRINCIPLE

Mohammad Yaghoub Abdollahzadeh Jamalabadi2015-11-17International Journal of Energetic Materials and Chemical Propulsion

This study uses the entransy dissipation extremum principle to optimize the geometry of conductive routes intruded into a cylindrical solid body for thermal cooling of a plastic bonded explosive. Conductive route cooling, which has relatively high thermal conductivity in terms of the heat-generating mediums into which…

Energetic Materials and CombustionHigh-Velocity Impact and Material BehaviorThermal and Kinetic Analysis

Experimental and Computational Insight into the Chemical Bonding and Electronic Structure of Clathrate Compounds in the Sn–In–As–I System

Lada V. Yashina、Andrey A. Volykhov、Vera S. Neudachina 等 10 位作者2015-11-17Inorganic Chemistry

Inorganic clathrate materials are of great fundamental interest and potential practical use for application as thermoelectric materials in freon-free refrigerators, waste-heat converters, direct solar thermal energy converters, and many others. Experimental studies of their electronic structure and bonding have been,…

Perovskite Materials and ApplicationsAdvanced Thermoelectric Materials and DevicesThermal Expansion and Ionic Conductivity