Materials Literature
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최근 들어 광, 온도, pH, 전기, 자성, 압력 등과 같은 외부 환경의 작은 변화에도 반응하여 모양/부피가 변하거나 기계적, 광학적, 전기적, 화학적 특성 등이 가역적으로 바뀌는 스마트 소재에 대한 관심이 높아지고 있다. 이러한 스마트 소재들 중 광조사에 의해 소재의 다양한 특성을 가역적으로 제어할 수 있는 광응답 스마트 소재가 많은 관심을 받고 있다. 본 논문에서는 광에너지를 받아 기계적 에너지로 바로 전환되어 인공근육, 모터 등과 같은 액츄에이터 기능을 할 수 있는 광구동형 스마트 고분자 소재들에 대해 소개하고자 한다. 특히, 광구동형 스마트 고분자 소재 중에…
Bitlis Masifi'ndeki Yolcular Metamorfitleri içinde gözlenen aplit daykları feldispat minerallerince zenginleşme göstermektedirler. Bu çalışmada Bitlis Masifi'nin alt birliğini kesen aplit dayklarının K-feldispat kaynağı olarak kullanılabilirliği araştırılmıştır. Yolcular Metamorfitleri amfibolit, metagranit, paragnays…
Polianilin (PANI) ve PANI/ZnO nanokompozitleri, sırasıyla anilin ve ZnO nanoparçacık ilave edilmiş anilinin kimyasal oksidatif polimerizasyonu ile sentezlenmiştir. ZnO nanoparçacıkları ark-deşarj yöntemi ile sentezlenerek PANI/ZnO nanokompozitlerinin hazırlanmasında kullanılmıştır. ZnO nanoparçacıklarının PANI’nin kar…
New materials always have the possibility of revolutionizing manufacturing processes and the way we live. Bronze, steel alloys, vulcanized rubber, ceramics, and fiber optic cables are just of few of the materials man has discovered which improved his quality of life. One of the more recent additions to the field of ma…
BCP, Mg-BCP, Si-BCP 분말을 공침법(co-precipitation process)을 이용하여 합성하였다. 제조된 분말을 X-선 회절 분석(XRD), 적외선분광분석(FTIR)을 이용하여 특성을 분석하였다. Ca/P 몰 비율이 1.602인 칼슘 결손 아파타이트 공침물을 제조하여 $1000^{\circ}C$ 열처리 과정을 통하여 HAp와 ${\beta}$ -TCP 상이 혼재된 BCP, Mg-BCP, Si-BCP을 합성할 수 있었다. 제조된 분말의 생체활성 거동을 평가하기 위하여 Hanks' Balanced Salt Solution(HBSS)에 침적시켜 시간…
University of Minnesota Ph.D. dissertation. December 2012. Major: Material Science and Engineering. Advisor: C. Daniel Frisbie. 1 computer file (PDF); vii, 208 pages, appendix p. 206-208.
The Hsiang-Yang mica deposit, which belongs to the sericite-pyrophyllite-quartz schist, is located at Litao Village of Taitung County, Taiwan, R.O.C. The total reserve is estimated to be about 30 million tons. Hsiang-Yang mica is one of the most economically valuable industrial minerals of R.O.C. The mineral distribut…
Hard magnetic SrFe12O19 (SrM) nanoparticles were synthesized by a facile sonochemical reaction. The magnetic nanoparticles were then added to acrylonitrile-butadiene-styrene, polystyrene, polycarbonate, and poly sulfone to make magnetic nanocomposites. The magnetic properties of the samples were also investigated usin…
Toplotne i fiziološke komponente su primarne funkcionalne komponente odeće, zbog toga što odeća mora da obezbedi zaštitu od hladnoče i toplote, i mora da dozvoli transfer vlage i toplote kroz različite slojeve odeće. U radu su konstruirane i ispletene dvoslojne integrirane pletenine od pamučne pređe u apsorpivnom sloj…
Safeguards by Design (SbD) is a well-known paradigm for consideration and incorporation of safeguards approaches and associated design features early in the nuclear facility development process. This paradigm has been developed as part of the Next Generation Safeguards Initiative (NGSI), and has been accepted as benef…
Dynamics and thermodynamics of small molecule glass formers, polymers and organic crystals are addressed in this thesis. Dynamics of glass formers in the vicinity of glass transition are investigated in the dynamic part, while the thermodynamics of rubber swelling and the melting of the energetic materials PETN are di…
Tissue engineering (TE) is a fast growing field of research that aims at creating functional biological replacements for the human body. It requires specific conditions favorable for tissue regeneration, and the outcome of the engineered tissue must be objectively assessed. Magnetic Resonance Imaging (MRI) is one of t…
The transport properties of liquids and gases through polymeric materialsplay a very important role in some areas of industrial applications. In thisstudy, natural rubber (NR)/CaCO3 composites were prepared by melt mixingmethod. By equilibrium swelling test, the transport process of toluene in the prepared natural rub…
Steigende Anforderungen an den Leichtbau sowie der moegliche Verzicht auf zusaetzliche Korrosionsschutzmassnahmen unterstuetzen die Wahl des Werkstoffs Aluminium fuer Fahrwerksbauteile des Automobils. Im Rahmen des Gemeinschaftsprojekts Salzkorrosion des Instituts fuer Systemzuverlaessigkeit und Maschinenakustik sowie…
【This study examined the clothing wearing comfort of elderly women by electroencephalogram (EEG) and electrocardiogram (ECG) analyses. This study utilized 7 elderly individuals aged 65 or more. Two kinds of clothing ensemble (control and prototype) were used as experimental clothing. The control consisted of a general…
Complex fluids have a defining intrinsic structure at mesoscopic length scales, and this intrinsic structure and the intermolecular interactions at these length scales have a major influence in determining the properties of the systems. In this work, we use molecular dynamics (MD) and multiparticle collision dynamics…
Contrairement à la plupart des éléments, les phases liquide et amorphe du tellure se sont avérées être assez mal reproduites par la méthode, pourtant éprouvée, de la dynamique moléculaire ab initio . Les calculs ‘standart’ utilisant la théorie de la fonctionnelle de la densité (DFT) produisent en effet des structures…
Nuclear power has demonstrated over the last 30 years its capacity to produce base-load electricity at a low, predictable and stable cost due to the very low economic dependence on the price of uranium. However the management of used nuclear fuel remains the “Achilles’ Heel” of this energy source since the storage of…
Chalcogenide glass optical fibers have been extensively studied since 1967, when sulphide based fibers and their potential applications were first proposed. While good quality fiber drawn from alloys containing a variety of chalcogen elements have been realized, their delicate nature, complicated fabrication methodolo…
Noise pollution caused by vehicles has always been a concern to the communities in the vicinity of highways and busy roadways. The carpet composite material was recently developed and proposed to be utilized as sound-walls in highways. In the carpet composite material post-consumer carpet is used as reinforcing elemen…