Materials Literature
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In \cite{PK}, the authors constructed a translation plane of order arising from replacement of a sporadic chain of reguli in a regular spread of . They also showed that two more non isomorphic translation planes, called and , arise respectively by derivation and double derivation in which correspond to a further repla…
Photoinduced electron transfer (ET) in dyads consisting of zinc porphyrins or zinc phthalocyanines as the electron donors and fullerene C60 as the electron acceptor was studied in different environments. Time-resolved absorption and emission spectroscopy studies were performed to monitor the populations of the transie…
A broad description for gene therapy might include both the replacement of absent or defective genes using plasmid DNA and the selective interference with signaling pathways involved in the genesis of various diseases by knocking down mRNA expression using RNA interference (RNAi) technology. The use of RNAi has a grea…
En The increased use of heating in many medical specialties is driven by the availability of new devices, not an understanding of the underlying physics. Whereas most prior studies have quantified material response characteristics before and after thermal damage, the goal of this work is to describe changing response…
Intrinsically disordered proteins (IDPs) represent a growing area of scientific interest. The prevalence of IDPs within the proteomes of complex organisms and the importance of these proteins in cellular functions has become apparent. The application of hydrogen/deuterium exchange mass spectrometry (H/D-MS) to study I…
The relationship between composition and properties of enamel glass was investigated by introducing a mixture design.The enamel glass was manufactured by mixing various components under the following constraints: 45A mathematical model for the calculation of some properties of enamel glasses as a function of their com…
Hydroformylation for producing industrial chemical intermediates such as aldehydes and alcohols from olefinic substrates is a 15 billion lb/year industry and a potential route for increasing the carbon chain of light olefins such as ethylene and propylene to produce longer chain olefins. Novel, resource-efficient tech…
Thin films of cobalt are prepared using thermal evaporation method at pressure 10-5 torr. The hydrogen gas is introduced in chamber at different pressure from 0 Psi to 40 Psi to hydrogenate the films. Optical transmission is found to increase and optical absorption decrease with hydrogenation. The optical band gap in…
Für APU-Anwendungen im Nutzfahrzeugbereich wird seit einiger Zeit der Einsatz von kompakten Reformer-Brennstoffzellensystem diskutiert. Erste kommerzielle Systeme sind bereits verfügbar. Prinzipiell können Reformer-Brennstoffzellen-Systeme auch mit Flüssigbrennstoffen wie Diesel und Biodiesel betrieben werden. Diese b…
High electron mobility transistors (HEMTs) based on InAlN/GaN nanoribbon (NR) structures appear as a new technology which can deliver record current densities. Ultraviolet (UV) photodetectors based on ungated InAlN/GaN NR HEMT structures have a gain in the range of the 105–107, a sublinear behaviour with the excitatio…
Side effects of chemotherapy are major problems associated with current cancer treatment. An effective way to minimize these side effects and improve the efficacy of cancer treatment is to deliver drugs specifically targeted to tumors. This can be achieved by encapsulating chemotherapy drugs inside nanoparticles that…
In the original publication of the paper [1], the funding source was inadvertently omitted from the footnote on page 1016. The footnote should have read "Manuscript received November 20, 2012; accepted February 14, 2013. This work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) u…
세 가지 종류의 카복실산(포름산, 아세트산, 프로피온산) 용액 하에서 양극산화 반응을 통한 나노 다공성 금(nanoporous gold, NPG) 구조의 형성과 NPG 전극 표면 상의 전기화학적 글루코오스 산화반응을 관찰하였다. 세 가지 카복실산 용액 조건 중에서 포름산 용액 조건하의 양극산화를 통해 형성된 NPG 전극에서 글루코오스의 산화 활성이 가장 우수하였다. 포름산 용액 조건하의 양극산화 과정에서 가장 우수한 글루코오스 산화 활성을 얻기 위한 최적 조건은 인가전위 5.0 V와 반응시간 4시간이었다. 카복실산 용액 하에서 형성된 NPG 상의 전기화학적 글루코오…
Ein Porphyrin-Azaanalogon ohne Pyrrol-Einheiten absorbiert im gesamten sichtbaren Bereich. D. Jacquemin, O. Siri et al. zeigen in der Zuschrift auf S. 6370 ff., dass der zentrale 16-gliedrige Ring mit seinen vier Stickstoffatomen 18 delokalisierte π-Elektronen enthält und somit aromatisch ist. Diese Verbindung weist A…
Highly ordered porous materials having mesopores in the walls of macropores showed improved adsorption dynamics results for VOC molecules, especially bulky molecules. These meso/macroporous mataerials were synthesized by the dual templating method, and mesopore and macropore size were controlled by adjusting the templ…
A porphyrin aza analogue that contains no pyrrol subunits absorbs in the entire visible region. D. Jacquemin, O. Siri, and co-workers show in their Communication on page 6250 ff. that the central 16-membered ring containing four nitrogen atoms has 18 delocalized π electrons, and is thus aromatic. This compound is anal…
고성능 고분자/클레이 나노 복합재료의 제조 과정에는 친수성을 보이는 클레이 원료 물질인 $Na^+$ -MMT (sodium monmorilonite)를 친유성을 갖도록 유기화된 계면활성제로처리하여 개질하는 과정이 필수적이다. 이를 위하여 이 연구에서는 VDAC (vinylbenzyldimethyl-dodecylammonium chloride)를 간단한 화합물로부터 합성하였고 이를 이용하여 양이온 교환반응에 의하여 $Na^+$ -MMT를 개질한 후 $VDA^+$ -MMT를 제조하였다. 이를 스티렌과 혼합하여 in-situ 중합에 의하여 나노복합재료를 제조하였고 클레이…
저온에서 소성된 산화마그네슘 분말을 치환한 MgO 콘크리트는 장기적인 팽창성을 가진다. 또한 MgO의 수화반응이 느린 속도로 장기재령까지 일어나기 때문에 매스콘크리트의 온도수축을 효과적으로 보상할 수 있다. 따라서 저온 소성한 MgO는 매스콘크리트 구조물인 댐에 주로 적용되었다. 최근 수화열 저감을 위해 매스콘크리트에 많이 사용되는 플라이애시를 사용한 MgO 콘크리트의 팽창특성에 대한 연구가 진행되어 왔지만 이러한 콘크리트의 내구성에 관한 연구는 부족한 실정이다. 이 연구에서는 플라이애시 콘크리트에 저온 소성한 MgO 분말을 치환하여 MgO 분말 치환에 따른 장기재…
كتاب شرح قف وإن زوحم للعلامة محمد عال بن أحمذ بن زياد التعريف بالمؤلف: هو محمد عال الملقب آلا بن أحمذ بن زياد بن حامدت الصغير بن عبيدي بن محمذن بن ألفغ عبد الله بن أعمر. وأمه امبيريك بنت محمذن بن عم بن سكم بن محمذن بن أعمر. كان رحمه الله تعالى عالما شاعرا نسابة, متكلما مؤرخا موثقا لـه عناية بتدوين الأحداث والأشعار وكا…
Abstract: The Urea-SCR system commercialized shows a remarkable performance to reduce NOx emission in heavy duty diesel engines. However, Urea-water solution injected upstream a mixer, which is set up inside a exhaust pipe to promote exhaust gas-atomized droplet mixing, bumps up against the wall of a exhaust pipe as t…