Materials Literature
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Abstract Hybrids possessing both oligomeric ethylene oxide chains and Ti–O–P networks were prepared from TiCl4 and organodiphosphonic acid [(HO)2OP(C2H4O)3C2H4PO(OH)2] via a nonhydrolytic sol–gel process and subsequently treated with a LiClO4 solution. The P/Ti ratio was fixed at 2 and the ethylene oxide unit/Li+ rati…
Abstract not provided.
Trabalhos estao sendo desenvolvidos com objetivo de determinar um modelo teorico adequadopara dimensionamento de vigas de Madeira Laminada Colada reforcadas com PRF. Umagrande parte destes estudos leva em consideracao o comportamento da madeira nacompressao paralela as fibras, na tracao paralela as fibras e do reforco…
Abstract We report the preparation of a sodalite (SOD) layer on a cordierite substrate as a protective barrier against the potassium species using an in situ hydrothermal method. The performance of the potassium carbonate-loaded layer was characterized by scanning electron microscopy–energy-dispersive X-ray (SEM-EDX)…
Abstract not provided.
The NIF point design uses a five-layer capsule to modify the X-ray absorption in order to achieve optimized shock timing. A stepped copper dopant design defines the layer structure. The production of the capsule involves pyrolysis to remove the inner plastic mandrel. Copper atoms diffuse radially and azimuthally throu…
No AccessGrundlagen und Bauelemente der ElektrotechnikMar 2013Grundschaltungen für WechselspannungenHeinz-Josef BauckholtHeinz-Josef Bauckholthttps://doi.org/10.3139/9783446437081.006SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of st…
Contemporary identification methods of biogeochemical functions of individual bacterioplankton species (taxa) in aquatic ecosystems are considered in this review. Currently popular metagenomic methods are not suitable for determination of species-specific biogeochemical functions of various bacterioplankton taxa. Cult…
This project presents design of Salisbury screen absorber using dual layers of frequency selective surface FSS. By using this design, the Salisbury screen able to provide dual absorbtion bands and this can improve the overall operating bandwidth. The performance improvement is obtained when frequency selective surface…
In the anterior part of the mouth appearance is of overriding importance, and so the only types of crown to be considered are those with a tooth-coloured labial or buccal surface. These fall into three groups: • Ceramic crowns • Metal-ceramic crowns • Other types of crowns.
No AccessJava-KomponentenMar 2013Prototypische Implementierung eines KomponentensystemsRainer OechsleRainer Oechslehttps://doi.org/10.3139/9783446435919.006SectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF key 'share (en)' returned an object instead of string.FacebookTwitterEmailLi…
납을 획득하는 방법과 처리과정에서 일어나는 물리 화학적 거동변화를 확인함으로써 납이 함유된 고대 금속유물의 제작기법 연구에 활용하고자 방연석을 현재 가행 중인 광산에서 채취하여 세척 및 선광 등의 전처리 공정을 거쳐 제련 및 정련실험을 실시하였다. 실험결과, 납은 배소-화학반응에 의해 추출되며, $1,000^{\circ}C$ 이상의 고온에서도 방연석이 matte 내 존재하고 있음을 알 수 있었다. 이후 잔존하고 있는 방연석을 제거하기 위해 정련실험을 실시한 결과, 약 $11.1g/cm^3$ 의 비중을 갖는 금속 납이 추출되었으며 방연석 내 미량으로 존재하고 있던 A…
Further to the development of a model analysis framework suitable for calibration and validation of complex multivariate multiphysics models, this report presents an approach to data collection and characterization which can work in parallel with the above-mentioned model analysis framework and support the calibration…
An attempt has been made to use the enzyme technology for bioscouring of organic cotton textiles using sonication techniques to improve the enzyme activity and scouring performance. The process optimization of bioscouring of 100% organic cotton fabric with ultrasonic treatment have been done with selective specific mi…
Activity of tetrapyrrolic macrocycles such as chlorins and phthalocyanines with magnesium, alluminum, and zinc in hydrogen peroxide decomposition in dark and under visible light irradiation was studied. Using adsorption isotherms the conditions for obtaining photocatalytic systems with varying degrees of adsorption of…
In this memo, the dose to an O-ring from the alpha decay of 238PuO2 is calculated. These calculations were made in order to assess possible radiation damage to the O-ring, which could lead to failure and loss of integrity of the seal created by the O-ring. The O-ring being discussed here provides the seal between the…
Les aciers à outils servent à la mise en forme des matériaux. Ceux-ci contiennent souvent un taux élevé de carbone associé à du molybdène, du tungstène, du vanadium ou du chrome. Il existe une classification européenne des aciers à outil.
Many medical and biological processes consist of photosensitive redox stages that occur with the participation of metal porphyrins and hydrogen peroxide. For instance photosynthesis consists of a large number of redox reactions, some of them are photocatalyzed by chlorophyll (Chl). During photosynthesis the interactio…
March 2013 issue of the Materials Physics and Applications newsletter distributed by Los Alamos National Laboratory.
Alluminum Complex Greases ........................................................................... 71 6.8 Additives in Greases .......................................................................................... 72 6.8.1 Tribological Investigation of CAF2 Nanocrystals as Grease Additive ... 73 6.9 Conclusion…