The Method of Improving Automobile Safety due to Improved Parameters of Car Seats with Passive and Active Head Restraints
кен, подголовник, конечно-элементная модель (КЭМ), LS-DYNA, Euro NCAP
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Pd 나노 촉매가 도입된 나피온 막의 기계적 강도 및 고분자 전해질막 연료전지 (PEMFC) 성능
A simple solid state incorporation method was employed in order to incorporate Pd nanocatalyst into a Nafion film for polymer electrolyte membrane fuel cell (PEMFC) via the reduction of palladium (II) bis (acetylacetonate), Pd(acac)2. It was sublimed, penetrated into Nafion film and then reduced to Pd nanoparticles si…
Flatliner cold planer evaluation for airfield pavement maintenance
Abstract: The U.S. Army Engineer Research and Development Center evaluated tools and procedures for removing small surface irregularities in airfield pavement repairs that cause unacceptable roughness for aircraft. A desirable tool could grind pavement surfaces smooth and flush. A Flatliner cold planer skid steer atta…
Case Study: An Insight into the Buying Behaviour of Urban Consumers towards Casual Wear-An Empirical Evaluation
IntroductionThe apparel industry offers various categories of apparels. Among them, casual wear has particular importance because it represents the largest market of apparel.13 The purchase behaviour of consumers of casual wear is influenced by many factors. Family, friends and stars (film-stars, sport-stars etc) as c…
Identification of thermal resistances of thermoelectric modules by electrical characterization
The efficiency of a Thermoelectric Module (TEM) is not only influenced by the material properties, but also by the heat losses due to the internal and contact thermal resistances. In the literature, the material properties are mostly discussed, mainly to increase the well-known thermoelectric figure of merit ZT. Never…
The impact of Sawmill operations on power quality: Case study of Merensky Northern Timbers Sawmill Ltd
Sawmill loads are disturbing loads. When connected to a power system, they constitute sources of harmonics, voltage fluctuations and flicker. In this paper, measurements of power quality parameters carried out in a case study of MERENSKY Northern Timbers Sawmill Ltd at Tzaneen, Limpopo Province of South Africa are rep…
The Technology of Manufacturing Fibrous Non-Woven Materials by Ultrasonic Welding
Рассмотрены технологические процессы изготовления нетканых материалов, сущность которых заключается в получении волокнистых холстов и создании между волокнами прочных связей с помощью ультразвуковой сварки.При этом холст может состоять из полипропилена, лавсана и капрона.Установлено, что процесс образования сварного с…
Oscillating transient component for detection and localization of faults in HVDC systems
The aim of this work is to analyze possibility of using parameters of an oscillating transient component which appears during fault condition in HVDC systems for detection and localization of faults. Two main parameters of mentioned components are considered, amplitude and frequency, which naturally are associated wit…
Statistical and economic analysis of power quality impact on thermal behaviour and life expectancy of three-phase induction motors
This paper deals with thermal behavior and life expectancy analysis of three-phase induction motors under non-sinusoidal supply, emphasizing the random nature voltage variations due the dynamic of electrical power systems. The necessity to realize the statistical/probabilistic procedure to analyze power quality proble…
Influence of Physical Load on the Stability of Organic Solar Cells with Polymer
We report the effect of physical load on the stability of organic solar cells under physical loads. The active layers in organic solar cells were fabricated with bulk heterojunction films (BHJ) films of poly (3-hexylthiophene) and phenyl-C 61 -butyric methyl ester. The loading time was varied up to 60 s by keeping the…
Ο ρόλος του μονοπατιού του πρωτεϊνικού αντιγραφικού συμπλόκου NF-kB στην αθηρογένεση
Σκοπός της παρούσας διδακτορικής διατριβής ήταν η διερεύνηση του ρόλου του NF-κΒ στην αθηροσκλήρυνση των καρωτίδων αρτηριών αλλά και εν δυνάμη στην αποσταθεροποίηση των καρωτιδικών πλακών.Συνολικά αξιολογήθηκαν δείγματα από 124 ασθενείς. Η έκφραση του NF-κΒp65, πυρηνικά και κυτταροπλασματικά, αλλά και του ΙκΒ (α, β &…
On the transmission power transformers in Nigeria: Lagos sub region as case study
Increasing pressure from both customers and regulators to maintain and enhance service reliability, while at the same time controlling costs has put power utilities on their toes. In view of this, asset management has become an increasingly important aspect of power business strategies such that electricity companies…
The Computational and Experimental Method of Estimating Crack Resistance of Adhesive Joints
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폴리피롤 코팅 직물의 성질에 미치는 폴리피롤 함량의 영향
To chemically prepare polypyrrole(pPy) coated fabrics(silk, cotton and nylon fabrics), the fabrics were first soaked in 0.4M oxidant FeCl3/0.06M dopant anthraquinone- 2-sulfonic acid solution for 5min at room temperature, and subsequently soaked in a 0.4M monomer pyrrole aqueous solution for 5min at room temperature.…
Characteristic of core-less tubular type PM linear generator
In this paper the coreless tubular linear generator is analyzed by using finite element methods (FEM). The magnetic field distribution of the analysis model is shown with 2D and 3D FEMs. The prototype linear machine with the core of a polyacetal material is built. The EMF of the coreless tubular linear generator is ve…
Preparation of β-glucan scaffolds by hydrogel foaming with supercritical CO2
New materials and processing techniques are being constantly developed for the production of scaffolds for tissue engineering applications. Traditionally, foaming of polymers with supercritical fluids is one of the procedures used to create porous matrices. However, this technique cannot be applied to hydrophilic poly…
압출성형기를 이용한 나노복합재 필름의 특성 분석
Polypropylene(PP)/multiwalled carbon nanotubes(MWCNT) nanocomposites films and PP/poly(vinyl alcohol)/CNT nanocomposites films were prepared through melt mixing method by the extruder. The PP/CNT nanocomposites films, which contain CNT of a variable content, were prepared for the first time and research on a appropria…
Photocurable dielectrics for electronic packaging and encapsulant applications
This article consists of a collection of slides from the author's conference presentation.
Control of lyotropic chromonic liquid crystals by means of magnetic fields and chiral dopants
Treballs Finals de Grau de Quimica, Facultat de Quimica, Universitat de Barcelona, Any: 2016, Tutor: Jordi Ignes Mullol
Developments for copper-graphite CTE-matched thermal cores for high-reliability GaN systems
Efficient transfer of heat loads from semiconductor devices that must dissipate heat directly into organic printed circuit boards is challenging in applications which require high levels of reliability, especially when exposed to challenging ambient conditions. System designs where only conduction cooling is available…