Materials Literature

文献浏览

按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。

清除
第 215182 / 302745 页 · 当前展示 4,303,621–4,303,640 / 6,054,882 条匹配结果 · 摘要仅作预览

Chiral interactions of light induced by low-dimensional dynamics in complex potentials

Sunkyu Yu、Hyun Sung Park、Xianji Piao 等 5 位作者2014-08-31arXiv (Cornell University)

Chirality is a universal feature in nature, as observed in fermion interactions and DNA helicity. Much attention has been given to chiral interactions of light, not only regarding its physical interpretation but also focusing on intriguing phenomena in excitation, absorption, refraction, and topological phase. Althoug…

Metamaterials and Metasurfaces ApplicationsTopological Materials and PhenomenaQuantum Mechanics and Non-Hermitian Physics

National Hypersonic Science Center for Materials and Structures

David B. Marshall、Brian N. Cox、Peter Kroll 等 9 位作者2014-08-31OpenAlex

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information.

Advanced ceramic materials synthesisNuclear Materials and PropertiesAdvanced materials and composites

The Effect of Fatigue Strength according to Carburizing Depth

Hyun Min Choi、Yong Ha Park、Yong Taek Shin 等 4 位作者2014-08-31Journal of Welding and Joining

Carburizing treatments are the important way to developing fatigue strength and wear resistance. It is well known that the case depth is one of the most significant parameters determining fatigue strength. In this study, 3-point bending fatigue test was conducted to evaluate fatigue strength for the carburized depth w…

Microstructure and Mechanical Properties of SteelsSurface Treatment and Residual StressMetal Alloys Wear and Properties

Synthesis, structural modelling and photoluminescence of Tb(III) polymeric complexes for solution-processed OLEDs

João P. Martins、Pablo Martín‐Ramos、Pedro Chamorro‐Posada 等 8 位作者2014-08-31Journal of Chemical Engineering

Current manufacturing technologies for OLEDs involve the use of expensive high vacuum techniques and call for thermal stability requirements which are not fulfilled by many materials. These problems disappear when the OLED films are deposited directly from solution. In this study, we have synthesized, modelled by semi…

Organometallic Complex Synthesis and CatalysisOrganic Light-Emitting Diodes ResearchLanthanide and Transition Metal Complexes

Comprehensive Assessment on Risk Factors using Fuzzy Inference in Decommissioning Process

Hyeon Kyo Lim、Hyun‐Jung Kim2014-08-31Journal of the Korean Society of Safety

Decommissioning process of nuclear facilities consist of a sequence of problem solving activities, because there may exist not only working environments contaminated by radiological exposure but also industrial hazards such as fire, explosions, toxic materials, and electrical and physical hazards. Therefore, not a few…

Multi-Criteria Decision MakingRisk and Safety AnalysisGraphite, nuclear technology, radiation studies

Biosynthesis of Silver Nanoparticles from Aqueous Leaf Extract of Synedrella nodiflora under Sunlight Irradiation and Screening of its Antibacterial Activity

Shyamal K. Jash、Dilip Gorai、Arindam Gangopadhyay2014-08-31International Journal of Pharmaceutical Sciences and Nanotechnology

The field of nanotechnology and nanoscience is the most currently an area of intense scientific interest for researchers in modern materials science. However there are many chemical as well as physical methods, green synthesis of nanomaterials is the most emerging method of synthesis. We report the synthesis of antiba…

Nanoparticles: synthesis and applicationsMedicinal Plants and NeuroprotectionNanotechnology research and applications

PENGARUH PENAMBAHAN ZEOLIT DAN KULIT KERANG DARAH TERHADAP SIFAT MEKANIS RUBBER COMPOUND

Farida A. Ali、M Mezal、Valencia Darmawan H2014-08-31OpenAlex

Karet alam menjadi salah satu komoditi perkebunan yang menjadi sumber pendapatan masyarakat Indonesia karena jumlah persediaannya yang melimpah. Namun, hal ini tidak diimbangi dengan pengembangan teknologi pengolahan dari karet alam tersebut. Salah satu cara untuk memanfaatkan persediaan karet alam adalah dengan pembu…

Material Selection and Properties

Deposition of Carbon Nanotubes in Human Alveoli - A Theoretical Approach for Risk Assessment

Robert Sturm2014-08-31SOP Transactions on Nano-technology

Carbon nanotubes (CNT) with different aspect ratios were studied with regards to their deposition in the alveolar spaces of the human respiratory tract (HRT). In order to provide close-to-realistic deposition scenarios, alveolar mixing was approximated by a specific mixing factor. This factor describes the ratio betwe…

Nanoparticles: synthesis and applicationsAir Quality and Health ImpactsInhalation and Respiratory Drug Delivery

Evaluation of the signal intensity of magnetic resonance angiography in accordance with the dilution rate of the contrast agent

Kwan-Woo Choi、Sung-Mi Seo、Soon-Yong Son2014-08-31Journal of the Korea Academia-Industrial cooperation Society

조영제의 희석률 변화에 따른 신호강도를 분석하여 조영증강 자기공명혈관조영검사 시 점도와 삼투압에 따른 부작용을 최소화하고 신호강도를 높여 영상의 질을 향상시키고자 하였다. 연구방법은 조영제가 혈관에 주입되면 혈액과 희석되어 mol 농도가 변화되고, 그에 따라 신호강도의 변화를 일으킴에 착안하여 phantom을 제작하였다. phantom 결과를 바탕으로 임상실험은 2013년 11월부터 2014년 1월까지 조영제를 희석한 군(30명)과 희석하지 않은 군(30명)으로 구분하여 뇌혈관의 신호강도를 비교하였다. 연구결과, 조영제 mol 농도 변화에 따른 phantom의 신호…

Advanced MRI Techniques and ApplicationsLanthanide and Transition Metal ComplexesMRI in cancer diagnosis

Synthesis of Polyester-Polyamine Dispersants and Their Carbon Dispersing Properties

Ji‐Hee Son、Jeong-Suk Yuk、Sangjun Lee 等 7 位作者2014-08-31윤활학회지

We prepared polyester-polyamines to improve the effect of carbon black dispersibility for use in thermal transfer ink, and synthesized polymeric dispersing agents by two-step reactions. In the first step, we made polyester by polycondensing 1,6-hexanediol and adipic acid. The resulting polymers had carboxylic acid, wh…

Surface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting MaterialsPhotopolymerization techniques and applications

Selective growth of GaN nanorods on the top of GaN stripes

Yeonsu Yu、Junhyeong Lee、Hyung-Soo Ahn 等 6 位作者2014-08-31Journal of the Korean Crystal Growth and Crystal Technology

3차원적 선택적 결정 성장 방법에 의해 GaN stripe 구조의 꼭지점 부분에만 GaN 나노로드를 성장하였다. GaN stripe의 꼭지점 부분의 $SiO_2$ 만을 최적화된 포토리소그라피 공정을 이용하여 제거하고 이를 선택적 결정 성장을 위한 마스크로 사용하였다. $SiO_2$ 가 제거된 꼭지점 부근에만 Au 금속을 증착하고, metal organic vapor phase epitaxy(MOVPE) 방법에 의해 GaN stripe의 꼭지점 부분에만 GaN 나노로드의 선택적 성장을 실시하였다. GaN 나노로드의 형상과 크기는 결정 성장 온도와 III족 원료의 공급…

GaN-based semiconductor devices and materialsNanowire Synthesis and ApplicationsGa2O3 and related materials

Electronic and Magnetic Structure Calculations of Mn-dimer Molecular Magnet

Key Taeck Park2014-08-31Journal of the Korean Magnetics Society

분자자성체 Mn-dimer의 전기구조 및 자기적 성질을 제1원리의 범밀도함수법을 이용하여 계산하였다. 계산 된 결과, 전자구조는 벌크 MnO와 비슷한 Mn 주위의 4개의 산소 원자에 의해 $t_{2g}$ , $e_g$ 에너지 준위로 분리되어 있었다. 적은 수의 배위원자로 이 결정장 분리는 작았디. 총에너지 계산에서는 반강자성적 상호작용이 낮은 에너지를 가지고 있었다. 계산 된 $Mn^{+2}$ 원자 사이의 교환상호작용 크기는 다른 Mn-O 분자자성체보다 한 단위 큰 값을 얻었다. 이 원인은 Mn 3d 사이의 직접 상호작용과 Mn-O의 강한 결합으로 인한 초교환상호작…

Advanced Chemical Physics StudiesMagnetism in coordination complexesPorphyrin and Phthalocyanine Chemistry

Emission Reduction in a GDI Engine with Different Injection Timings – A CFD Investigation

P. Ramesh、E. James Gunasekaran2014-08-31International Review on Modelling and Simulations (IREMOS)

Spark ignition dominates the personal transportation segment. These engines have been well developed over 100 years. In order to meet the stringent emission norms, the performance of the engines has to be enhanced. In this regard CFD plays an important role in designing a better engine. In this paper the results of a…

Advanced Combustion Engine TechnologiesCatalytic Processes in Materials ScienceVehicle emissions and performance

Effects of PWHT on Weld Metal Properties of YS 460 MPa Steels for Ship and Offshore Structures

Chang-Yong Kang、Sang-Hoon Jeong2014-08-31Journal of Welding and Joining

This paper has an aim to study the effect of PWHT(for 140min. at $600^{\circ}C$ ) on FCAW weld metal properties (tensile, charpy impact and CTOD value) of YS 460 MPa steels for ship and offshore structures. On the basis of these study, it was found that strength was decreased and elongation was increased by PWHT. Thes…

Fatigue and fracture mechanicsHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses

Changes of discharge voltage of plate-type sodium sulfur batteries in the early charge/discharge cycles

Seong-In Kim、Heon-Tae Kim、Hee-Lack Choi 等 7 位作者2014-08-31Journal of the Korean Crystal Growth and Crystal Technology

나트륨 유황 전지는 $350^{\circ}C$ 이상의 고온에서 작동하는 대용량 전지로 에너지 저장 시스템에 주로 사용된다. 전지는 음극 액체 나트륨과 양극 액체 유황 그리고 고체 전해질 베타 알루미나( ${\beta}^{{\prime}{\prime}}$ -alumina)로 구성되어 있다. 이 전지는 초기충방전 사이클에서 상당한 전압변화를 보이기 때문에 전지의 안정화를 위해 컨디셔닝 과정이 필요하다. 실험 결과 전지 전압 변화의 주요한 원인 중의 하나가 액체 나트륨과 고체 전해질과의 접촉 면적이 변하기 때문인 것을 알았다. The sodium-sulfur batter…

Advanced Battery Materials and TechnologiesAdvanced battery technologies researchThermal Expansion and Ionic Conductivity

PENGARUH PEMBERSIHAN OLEH HUJAN TERHADAP ARUS BOCOR ISOLATOR PIN-POST 20 KV TERPOLUSI

Zico Venancio Sinaga、Hendra Zulkarnain2014-08-31Singuda ENSIKOM

Isolator yang terpasang pada ruangan terbuka akan dilapisi polutan yang berasal dari lingkungan di sekitarnya. Sedikit banyaknya (intensitas) polutan akan mempengaruhi konduktivitas permukaan isolator dan menyebabkan arus bocor ( leakage current ) mengalir pada permukaan isolator. Akan tetapi ketika cuaca hujan, air h…

High voltage insulation and dielectric phenomenaElectrostatic Discharge in ElectronicsIndustrial Automation and Control Systems

MaoC Mediated Biosynthesis of Medium-chain-length Polyhydroxyalkanoates in Recombinant Escherichia coli from Fatty Acid

Si Jae Park、Seung Hwan Lee、Young Hoon Oh 等 4 位作者2014-08-31KSBB Journal

Biosynthesis pathway of medium-chain-length (MCL) polyhydroxyalkanoates (PHA) from fatty acid ${\beta}$ -oxidation pathway was constructed in recombinant Escherichia coli by introducing the Pseudomonas sp. 61-3 PHA synthase gene (phaC2) and the maoC genes from Pseudomonas putida, Sinorhizobium meliloti, and Ralstonia…

biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionCarbon dioxide utilization in catalysis

Study on Temperature and Vibration of BLDC Motor

Jungwoo Ye、Mun-Gyu Son、Myoung-Hwan Choe 等 7 位作者2014-08-31Journal of Power System Engineering

In this paper, transient temperature and vibration characteristics of a brushless DC (BLD(c) motor are studied for external load (165W~495W) and rotational speed (2000 rpm~4000 rpm). For experiment, a simple measurement system is developed to allow a change in load and speed for measuring transient temperature and vib…

Electric Motor Design and AnalysisMagnetic Properties and ApplicationsMagnetic Bearings and Levitation Dynamics

Fabrication and analysis of optical micro-pyramid array-patterns

Je-Ryung Lee、Eun‐chae Jeon、Tae‐Jin Je 等 7 位作者2014-08-31Journal of the Korean Society of Manufacturing Process Engineers

A transparent poly methyl methacrylate (PMMA) optical micro-pyramid array-pattern is designed and fabricated using an injection modeling technique. The device's optical characteristics are tested and analyzed theoretically. In the optical pattern generated using the fabricated PMMA pattern, the components, due to not…

Photonic and Optical DevicesSemiconductor Lasers and Optical DevicesOptical Coatings and Gratings

Study on Power Characteristics in the PEMFC Parallel Channel with Baffles through Numerical Analysis

Oh-Jung Kwon、Chang-Mook Oh、Hee‐Sun Shin 等 4 位作者2014-08-31Journal of the Korean Electrochemical Society

고분자 분리막 연료전지의 성능향상을 위해 분리판 유로설계연구는 필요하다. PEMFC의 성능향상에 대한, 강제대류를 이용한 interdigitated 유로가 최근에 많이 연구되고 있다. 이 논문에서는 interdigitated 유로를 배플들이 있는 평행류 채널에 비슷하게 적용하였다. 상용 multiphysics program인 COMSOL을 이용하여 완전차단배플인 FBB가 있는 평행류 채널에 관해 전산해석을 수행하였고 3가지 변인들(배플 위치, 유체 방향, 유체 속도)이 사용 되었다. 각각 변인들의 출력은 최대출력의 80%를 고려한 0.5V에서의 결과이다. 최종적으로…

Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials