Materials Literature
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Die vorliegende Arbeit befasst sich zum einen mit dem experimentellen Nachweis der thermischen Polarisationsfluktuationen eines ferroelektrischen Silbernatriumdinitrit-Kristalles und zum anderen mit der experimentellen Untersuchung von Fluktuationstheoremen. Der Nachweis der thermischen Polarisationsfluktuationen des…
There are many stringent environmental regulations on the management of waste electrical and electronic equipments (WEEE) in most developed countries. WEEE directive aims at increasing collection and recycling rate of WEEE whereas, while the restriction of the use of certain hazardous substances (RoHS) aims at restric…
Cellulose nanofibrils can be utilized as a building block in novel material concepts. One area of particular interest is formation of hydrogels for use in medical applications such as drug delivery ...
저작자표시-비영리-변경금지 2.0 대한민국 이용자는 아래의 조건을 따르는 경우에 한하여 자유롭게 l 이 저작물을 복제, 배포, 전송, 전시, 공연 및 방송할 수 있습니다.다음과 같은 조건을 따라야 합니다: l 귀하는, 이 저작물의 재이용이나 배포의 경우, 이 저작물에 적용된 이용허락조건 을 명확하게 나타내어야 합니다.l 저작권자로부터 별도의 허가를
Two ethylene-octene copolymers (EOC - with octene wt.% of 20 and 35) were crosslinked using dicumyl peroxide (DCP). Crosslinking studies were done using rubber process analyzer (RPA) at 150-200 °C range. Highest s'max (maximum elastic torque) was found for EOC-20 with low octene content, always. High-octene EOC underw…
Submitted by Leila Silva (leila.silva@unilasalle.edu.br) on 2018-07-31T15:37:57Z No. of bitstreams: 1 claudete-gindri-ramos.pdf: 4043760 bytes, checksum: 84ab705362f0e6424952d8e163033e43 (MD5)
我們成功合成出應用於染料敏化太陽能電池具 π 共軛擴張單體 紫質及雙體紫質。 在單體紫質部分，成功合成出在 meso 位置具雙鍵結構的拉電子基的染料(RLC1 及 RLC2)，且另一側為 diarylamino group 的推電子基發現具有 cyanoacrylic acid group 結構的 RLC2 因 π–π* transitions。使得其吸收較為紅位移，並且效率為 5.79%。 在雙體紫質部分，成功合成出具有不同推拉電子基的雙紫質染料(RLC3、RLC4、RLC5、RLC6、RLC7及RLC8)，由於雙體紫質具有exciton coupling使Soret band以及Q band變寬，消光係數增大，且光譜有紅位移現…
Au sein des collections de musées et d’archives, sont parfois présents des objets en plomb ou en alliage plomb-étain (PbSn). Conservés dans des milieux contenant des vapeurs d’acide acétique, ces pièces peuvent développer une corrosion active se manifestant par la formation de produits de corrosion blancs et pulvérule…
采用BNi2钎料,对ZrB2-SiC陶瓷复合材料进行真空钎焊研究.借助SEM,EDS,XRD等分析测试手段分析了界面组织结构及性能.确定了最佳钎焊工艺参数:钎焊温度1160℃,保温时间20 min.结果表明,接头界面产物主要有δ-Ni2Si,β1-Ni3Si,ZrB2+C,Ni(s,s),CrxByCz.随着钎焊温度升高以及保温时间的延长,接头抗剪强度均先升高后降低.钎焊温度1160℃,保温时间20 min,钎焊接头室温抗剪强度达到最大121.3 MPa.钎焊温度和保温时间对接头断裂方式的影响有相似的规律,在保温时间较短时,裂纹主要产生于钎缝中的Ni(s,s)中,之后向Ni元素扩散层中扩展;当保温时间适中时,断裂主要发生在Ni元素…
Cosmeceuticals, cosmetic-pharmaceutical hybrids, have gained much popularity in recent years due to the benefits it could provide to enhance health and beauty of the skin. In this research, a new colloidal delivery system was designed and developed to deliver oxygen into the skin while providing essential cosmeceutica…
It has been focused on that the major reasons of aircraft accidents resulted not from human error but from the failure of teamwork or communication in 1980's. Such opinions were suggested in the workshop, so called, Resource Management on the Flight Deck by NASA in 1979. The researchers ...
Στην εργασία αυτή, ερευνούμε πώς διατεταγμένες συστοιχίες των μαγνητικών νανοσωματιδίων μαγνητίτη μπορούν να αξιοποιηθούν ως φορείς μαγνητικής υπερθερμίας σε σύγκριση με τα συνήθη τυχαίας διασποράς νανοσωματίδια. Οι συστοιχίες αυτές δημιουργήθηκαν, χρησιμοποιώντας ως διαλύτη ένα μείγμα αγαρόζης (άγαρ) και νερού σε προ…
Article is devoted to calculation method development to obtain response of structure subjected to multi-component seismic load. Brief overview of existing response calculation methods is presented. Maximal and minimal «envelope» spectra were obtained to evaluate maximum and minimum structure responses respectively. Sp…
Cellulose nanocrystals and fibers isolated form bioresources or residues are being used as functional additives in many applications during the past decades, recently these nanocrystals and fibers ...
High-performance solid-state polymer electrolytes are considered as a promising alternative for liquid electrolytes widely used in electrochemical-based energy storage devices such as rechargeable batteries, fuel cells and supercapacitors, etc. Because of their solid nature, polymer electrolytes offer many advantages…
We depict the synthesis of gold nanoparticle, free of stabilizing organic molecule, upon reduction of Au2O3 powder by hydrogen molecule in proportion of 0.8 g per 1.0 L of deionizer water. The content was free of oxygen gas by bubbled with argon gas through the spout and then saturated with hydrogen gas. The Au (III)…
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…
저작자표시-비영리-변경금지 2.0 대한민국 이용자는 아래의 조건을 따르는 경우에 한하여 자유롭게 l 이 저작물을 복제, 배포, 전송, 전시, 공연 및 방송할 수 있습니다.다음과 같은 조건을 따라야 합니다: l 귀하는, 이 저작물의 재이용이나 배포의 경우, 이 저작물에 적용된 이용허락조건 을 명확하게 나타내어야 합니다.l 저작권자로부터 별도의 허가를 받으면 이러한 조건들은 적용되지 않습니다.
Thin films of poly(3-hexylthiophene) (P3HT) are promising candidates for next generation of organic based electronic devices. Chain packing and crystallinity in such films have been shown to strong ...
Technological methods for the formation of 30-70 mm thick free porous onelayer Al 2 O 3 membranes with openended modificated pores from 50 to 90 nm in diameters by a twostage onesided anodization in oxalic acid electrolyte and combined method for the barrier layer removal were developed. Technological features for…