Materials Literature
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A Viatura Blindada de Transporte de Pessoal (VBTP) M113 é a maior família de veículos blindados sobre lagartas já fabricada no mundo. Baseado no M59 e M75, da década de 50, o M113 foi colocado em utilização na década de 60 pelos Estados Unidos. Atualmente há mais de 80 mil destes veículos em uso, entre mais de 40 vari…
Introduction: Glioblastoma multiforme (GBM) is the most frequent primary malignant tumor of the brain. But, the treatment of GBM is one of the most problems in cancer therapy because of poor drug penetration across the blood-brain barrier (BBB). Targeting drug delivery system and conjugating targeting moieties was rec…
In order to explore the influence of phase change temperature-control fiber on wearability of textiles, the phase change temperature-control viscose knitted sample and its control sample ordinary viscose knitted fabric were developed with raw materials of phase change temperature-control viscose yarn, ordinary viscose…
The results of the structural optimization of propeller blades are presented taking into account its composite structure and pitch change mechanism of the propeller and using FSI (Fluid-Structure Interaction) approaches. The optimality criterion of the problem is the propeller thrust with optimization parameters being…
Introduction: Because of advancement in nanotechnology, the use of Ag Nanoparticles (NPs) was increased in a wide range of area. Studies that were done in recent years demonstrated that Ag NPs can induce cytotoxicity in cells. One of the parts of UV radiation of sun is UVC (200 – 280 nm) that has antimicrobial effect.…
The importance of chronic wound treatment is with the management of the wound bed providing a moist environment to enhance epithelialisation in the wound healing process. The demand for the development of effective wound dressing in a cost effective condition is increasing day by day. On these points in view the prese…
Η παρούσα διδακτορική διατριβή επικεντρώνεται στη σύνθεση νέων Μεταλλο-Οργανικών Κατασκευών (Metal-Organic Frameworks, MOFs), το χαρακτηρισμό τους και τη μελέτη των ιδιοτήτων τους με στόχο την αξιοποίησή τους σε δυο απαιτητικά ερευνητικά πεδία: της προσρόφησης μεταλλικών ιόντων από υδατικά διαλύματα και της εκπομπής λ…
This paper reviews the temperature coefficient of resistance (TCR) and 1/f noise characteristics in porous silicon, to explore its possible application as a sensing element in high sensitivity based uncooled thermal detectors. These electrical characteristics are key parameters determining the sensitivity of thermal i…
All-porous-silicon microstructures have been released with in-situ controllable current density to achieve low residual stress and out-of-plane stress gradient in the porous silicon (PS) films. Optical transmission of large area released PS structures was investigated through both Fourier-transform infrared spectrosco…
A physically-based methodology for modelling microstructurally-sensitive fatigue crack growth has been developed and shown to capture many of the experimentally observed effects associated with microstructurally-sensitive fatigue crack growth, which currently contribute to the high levels of uncertainty in lifing mode…
"En este trabajo se presentan los resultados de una investigación sobre la propagación de grietas por fatiga en una lámina de acero estructural sometida a un proceso de soldadura MIG. El estudio se realizó en el acero estructural AISI 1018 utilizado en la fabricación de estructuras de perfil tubular rectangular (PTR)…
Leakage in any fluid distribution network or conveying systems results in \nconsumption of resources and time, and its impacts affect the on the environment \nand the profits for any asset owner. Moreover, a sufficient and applicable leak \ndetection system, especially, in the oil/gas industry, comes at a high cost an…
This technical report presents the exploration of design and prototyping of an Oxy-fuel injector with integrated temperature sensing capabilities using Additive Manufacturing (AM) technology. The AM process has proven itself as a viable method to fabricate complex shapes for custom-designed metallic components rapidly…
Thesis (Ph.D.)-- Wichita State University, College of Engineering, Dept. of Mechanical Engineering
본 논문에서는 항공기용 스트링거(Stringer)로 사용하기 위한 브레이드 복합재료(Braided composites)의 물성에 대해 연구하였다. 브레이드 프리폼(braid preform)을 30°, 45°, 60°로 제작하기 위해 드럼 와인더 속도, 브레이드 속도, 멘드럴 직경과 같은 공정변수들을 정량화시켰고, 에폭시 수지 종류를 TGDDM, YD-128로 브레이드 프리폼에 다르게 적용하여 각도에 따른 브레이드 복합재료의 인장강도, 굽힘강도를 섬유부피분율에 따라 규명하였으며, TGA 분석으로 열적 특성과 에폭시 수지의 분해 온도를 조사하였다. 그 결과 브레이드 프…
Long lauded for its ability to reduce the appearance of wrinkles, botulinum toxin is now being considered for reducing scarring.
The gas leakage of sulfur hexafluoride equipment seriously threatens the operational safety of the power grid. In order to avoid frequent gas filling or power outage treatment, it is necessary to quickly block the gas sealing defects of sulfur hexafluoride equipment. In this paper, the gas leakage repair test was carr…
In this study, melt-spun Finemet ribbons were coated by a thin layer of SiO2 using dip coating method. Amorphous ribbon prepared by melt spinning method and dip coating were done by using a solution of tetraethylen orthosilicate as a SiO2 precursor, ethanol as solvent and distilled water for hydrolysis. Different thic…
利用超快扫描量热仪（FSC）研究了聚丙烯（PP）在PP/聚苯乙烯（PS）（质量比20/80，表示为PP/PS（20/80），其余类推）共混体系中的结晶动力学过程，以及填充纳米二氧化硅（n-SiO 2 ）后其结晶动力学的变化，成功获得了各样品从玻璃化转变温度至熔点温度整个区间的等温结晶动力学曲线。研究表明：在PP/PS（20/80）共混物中PP以微米尺寸分散在PS主体中，受限结晶现象导致其结晶速率下降一个数量级，n-SiO 2 的引入使样品中异相成核位点增多，同时减弱了两相界面上高分子链的受限作用，使得PP/PS/n-SiO 2 （20/80/2）体系的总结晶速率相比PP/PS（20/80）体系增大，接近本体PP的结晶速率，提高了不…
External humidification using membrane humidifiers is an attractive technology used in controlling the humidity of proton-exchange membrane fuel cell (PEMFC) systems. Membrane humidifiers operate under passive conditions, requiring no external power, and are easily scalable to meet the humidity demand of a PEMFC stack…