Materials Literature
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Předmětem této diplomové práce je posoudit vliv přípravy spinelových sloučenin na jejich vybrané fyzikálně-chemické vlastnosti. V práci byla vypracována rešerše na možné přípravy spinelových sloučenin. Pomocí vybraných příprav, kterými bylo sražení pomocí roztoku amoniaku do pH 9 a 10, srážení pomocí roztoku kyseliny…
Graphene quantum dots (GQDs), a newly emerging 0-dimensional graphene based material, have been widely exploited in optoelectronic devices owing to their tunable optical and electronic properties depending on their functional groups. Moreover, the dispersibility of GQDs in common solvents depending on hydrophobicity o…
The current work is focused on the study of two surface modification plasma processes, (i) the active screen plasma nitriding (ASPN) and nitrocarburizing (ASPNC) for the hardening of ferrous surfaces and (ii) the microwave plasma assisted chemical vapor deposition (MW-PACVD) for the synthesis of single crystal and dop…
A sampling system was designed to determine the composition ratios of VOCs emitted from 31 surface coating materials (SCMs). Representative architectural, automotive, and marine SCMs in Korea were investigated. Toluene, ethylbenzene, and xylene were the predominant VOCs. The VOC levels (wt%) from automotive SCMs were…
This study investigates the performance of the Tran-Blaha (TB) method for pseudo-potential calculations of semiconductor and metallic systems, using conventional Density Functional Theory (DFT) approximations to model interactions. DFT is a widely used tool that makes accurate groundstate energy calculations of electr…
The research is interested in developing techniques for sewing connections between perforated fabrics and satin fabrics to reach the highest degree of quality and efficiency of sewing and thus the functional purpose of clothing and consumption overhaul by specifying some research variables which is the fabric used for…
In this study, new surfaces for pencil graphite electrodes with high stability, high surface area and highly catalytic activity were developed by coating them firstly with polydopamine, then with gold and silver nanoparticles. Electrodes developed for sensor applications were allowed electrochemical analysis for some…
Phenol and atrazine are recalcitrant organic pollutants considered harmful to human and aquatic life. Therefore, the developments of new technologies that allow their effective degradation are necessaries. In this context, the heterogeneous processes based on the Fenton reaction, such as, Fenton-like reaction and elec…
Nearly 70% of the new chemical entities (NCE’s) discovered are poorly-water soluble drugs and the number of poorly-water soluble drugs are increasing rapidly in the drug discovery. Most of the NCE’s are lipophilic and have dissolution rate issues. Low dissolution rate of the drugs result in poor bioavailability. To ov…
(Seçiçi İndirgeyici Katalistlerin Performansının Entegre Modelleme Yaklaşımıyla İncelenmesi) Dizel emisyon gazları partikül, karbon monoxide, NOx içeren çok sağlığa zararlı gazlardır. lBu çalışmanın amacı seçici indigeyici katalist sistemler icin birbiriyle entegre ve çok boyutlu bir modelleme geliştirebilmektir. Bu m…
ÖNSÖZ NiAl Nano Tellerin Mekanik Özelliklerinin Moleküler Dinamik Yöntemle İncelenmesi konulu Yüksek Lisans Tez çalışmamda bana her konuda destek olan, maddi ve manevi yardımını esirgemeyen ve ondan öğrendiklerimi her zaman yeni nesillere severek aktaracağım bilgileri edindiğim çok değerli hocam ve danışmanım sayın Pr…
Las redes de nanofibras de vidrios bioactivos son las estructuras mas adecuadas para regeneracion de tejidos duros como huesos. En este capitulo se aborda la importancia de estas estructuras. Asimismo, se tratan los metodos convencionales de produccion de fibras y nanofibras. Finalmente se detalla la produccion de nan…
高炉で，パームやし殻炭化物を微粉炭の代替として使用するために，微粉化したパームやし殻炭化物のガス化挙動を微粉炭と比較する必要がある。これらのガス化挙動を，高炉下部を模擬したレースウェイホットモデル実験装置を使用して検討した。実験の結果，微粉化したパームやし殻炭化物のガス化挙動は，微粉炭と同様に揮発分の影響を受けることがわかった。さらに，パームやし殻炭化物は灰分の含有量が微粉炭よりも少ないため，炉内のレースウェイでの圧力損失が減少した。
Metal matrix composites AMg-B[4]C-W were fabricated by spark plasma sintering (SPS) at temperatures from 440°С and 490°С. The obtained samples represent higher density close to theoretical. The role of sintering temperature and time of exposure in densification process and elastoplastic properties has been discussed.
Bibliogr.: p. 293
本研究は兵庫県41市町の平成10年度から平成24年度までのパネルデータを用いて，兵庫県におけるごみ袋有料化がごみ減量に寄与し，かつ社会厚生の観点から望ましい政策であるかどうかを明らかにすることを目的とする．本研究の結果から得られた主な知見は，1)ごみ1kgあたりのごみ袋価格が1%上昇することによって，1人あたりの生活系可燃ごみが0.076%減少すること，2)兵庫県のごみ袋有料化を行っている18市町すべてにおいて，ごみ袋有料化導入前後の社会的余剰の変化が正値(608万円から3,079万円)であること，3)兵庫県のごみ袋有料化を行っている18市町のうち14市町において，社会的余剰の変化分は現状のごみ袋価格下より最適ごみ袋価格下の方が大…
would ever be expected to occur in the future in a natural aquatic ecosystem.In this study, microcosm and mesocosm nanotoxicology studies in the marine environment were conducted focusing on realistic exposure conditions in the ng/L range.An aqueous suspension of branched poly(ethylenimine) capped silver nanoparticles…
Annealed specimens of type 304L and 316 stainless steel and cold-worked 316 specimens were irradiated in the Phenix reactor in the temperature range 381–394 °C and to different damage doses up to 39 dpa. The microstructure and microchemistry of both 304L and 316 have been examined using the combination of the differen…
人工干潟の造成後約2年を経た現況を整理した上で，既往の底生生物調査地点の設定手法の精度を検証した．さらに，含泥率と地盤高による干潟の区分に応じて底生生物の定量調査を実施し，出現生物種の特徴を考察した．その結果，(1)人工干潟では造成後約2年を経ても出現生物種数は増加傾向にあること，(2)確認される生物種の割合は，調査枠を干潟の区分に応じて抽出した場合が77%であったのに対し，調査枠を任意に抽出した場合が72%となり，既往の調査地点の設定手法は有効であること，(3)造成した人工干潟が多様な地盤高や底質環境を有するため，自然干潟で確認されなかった生物種が人工干潟に加入・定着したことが示された．
This research had two goals, the first being to develop a Finite Element model that was able to model the frictional behaviour of the metal forming lubricants in the hot forging test. The second goal of this research was to gain more in-depth knowledge about the interaction between the variables in the hot forging tes…