Materials Literature
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Polymer solar cells with device structure of ITO/PEDOT:PSS/P3HT:PCBM/AI were fabricated by magnetic field disposal with three different processes. Comparing to the device without magnetic disposal, the short-circuit current density of cell A increased from 1.337 mA/cm2to 2.180 mA/cm2, while the open-circuit voltage of…
A numerical simulation model based on the KIVA code was carried out for a DI diesel engine in-cylinder process. Two candidate chambers were compared with the original chamber to study their effects on combustion and emission characteristics. The results show that low emission was achieved in the chamber C with maximal…
PVC/nano hydrotalcite (HT)-zinc oxide (ZnO) composite were prepared to reduce the smoke release of rigid poly (vinyl chloride) (PVC) as it's burning. Thermal stabilities of the modified PVC and decomposed products were investigated by means of thermogravimetry and prolysis-gas chromatography-mass spectrum (Py-GC-MS).…
Long duration of low temperature thermal anneals show performance and stability enhancement for low-temperature fabricated amorphous zinc-indium-oxide (a-ZIO) thin-film-transistors (TFTs). The turn-on voltage (Von) of 50 hour annealed TFTs shifts by 1.5 V for a positive gate bias stress period of 104s when compared to…
A series of Iron-based complex catalyst were prepared by precipitation and immersion in order to study the effect of Ruthenium on the performance of Iron-based catalyst for CO hydrogenation in FTS. The distribution of products was studied for CO hydrogenation, and the reduction action of Iron-ruthenium complex catalys…
Cochlea implants help regain the auditory sense in cases where the cochlea has lost its ability to transform incoming sound signals into electrical stimulation for the auditory cortex. A cochlea implant requires a first calibration process, which is often based on the well-known stapedius reflex. This paper proposes a…
UV curable resin is coated on the polymer film for very thin adhesive layer by roll-to-roll process. The thickness of the coated layer was affected by the clearance between the coating roll and the gap roll, the viscosity of the resin or the accuracy of the system, etc. Among these process parameters, the clearance wa…
연료전지 무인기를 위한 화학수소화물 수소발생기의 온도변화에 따른 환경시험을 수행하였다. 수소 저장 및 생성을 위해 화학수소화물 중 높은 수소함량과 수소밀도를 가진 수소화붕소나트륨(NaBH₄)을 연료로 사용하였으며, Co-Ni-P-B/Ni foam 촉매를 이용한 가수분해반응을 통해 수소를 발생하였다. 수소발생기의 온도환경변화를 위한 저온 및 고온 챔버를 각각 준비하였으며, 온도범위는 20℃간격으로 -20부터 60℃까지 실험을 진행하였다. 20과 25wt.%의 NaBH₄ 용액 농도에서 수소발생기의 수소발생률과 반응기와 NaBO₂ 분리기의 온도변화를 측정하였다. 수소발생…
The award winners and the titles of their award winning papers are listed.
In this study, we estimated the dynamic tensile strength and strain rate from Brazilian tensile test using Split Hopkinson Pressure Bar (SHPB) system. A pulse shaping technique, which controls the shape of the impact-induce incident waves, was used for achieving the dynamic stress equilibrium and constant strain rate…
There are all countries in the world are trying to reduce the energy consumption because of remarkable energy reduction and environmental problems. Therefore, high light efficiency LED luminaires are being studied and developed relatively. But conventional LED streetlight is glare and has not good light uniformity. Th…
The paper reviews main findings of the Joint Assessment Study on a Nuclear Energy System (NES) based on a Closed Nuclear Fuel Cycle with Fast Reactors (CNFC-FRs) that was performed within the IAEA project INPRO.
A simple method was applied to prepare pinaster-leaf-shaped ZnO nanostructures on SiO2substrates. Single crystalline ZnO nano-structures were synthesized without using any catalyst. The structure and morphology of the as-prepared sample was characterized by X-ray diffraction, scanning and transmitting electron microsc…
The main objective of this study is to characterize the in vitro osteo inductive behavior of pearl nano crystallites. The results obtained from X-ray diffraction, Fourier transform infrared (FTIR) spectra, and inductively coupled plasma mass (ICP-MS) analysis demonstrate that the pearls can induce the formation of a h…
The objective is to identify (mostly for industrial end-users) the difference between a Section III nuclear steam generator (classified as Structures, Systems and Components (SSC)) and a Section VIII steam generator in the same general conditions, but used in a conventional application. Specifically, applicable temper…
We investigate the band structure of Fe-based superconductors using the firstprinciple method of density-functional theory. We calculated the band structure and the density of states at the Fermi level for ReFeAsO (Re = Sm, Dy, Ho, Er) superconductors. Our calculations indicate that the maximum critical superconductin…
In practical engineering, mixed mode fractures of material are commonplace. So the analysis of mixed-mode crack is of both theoretical importance and practical value. Using damage mechanics and fracture mechanics, the boundary equations of fracture zone of I–II mixed mode are obtained. The new concept of the radius st…
Summary Dynamic behaviors of tensile strength of brittle materials are investigated analytically, and an explicit mathematical expression for the dynamic tensile strength under a quadratic boundary loading is derived, together with the so-called structuraltemporal failure criterion. The analytical solution shows reaso…
Tests were performed with a light-vehicle diesel engine. Four representative operating conditions in 1600r/min speed have been considered. The influence of injection pressure, injection timing, and multiple injection strategies on the diesel engine emission characteristics and fuel consumption has been investigated. T…
To research the resistance temperature characteristic of large deformation sensor element produced by the conductive composite materials based on rubber. A series of tests on resistance temperature characteristic of carbon fiber filled conductive silicone rubber are carried out. the results shows that it appears trans…