نتایج جستجو برای: storage materials

تعداد نتایج: 607222  

Journal: :Applied optics 2001
G J Steckman A Pu D Psaltis

The storage density of shift-multiplexed holographic memory is calculated and compared with experimentally achieved densities by use of photorefractive and write-once materials. We consider holographic selectivity as well as the recording material's dynamic range (M/#) and required diffraction efficiencies in formulating the calculations of storage densities, thereby taking into account all maj...

Journal: :Journal of the American Chemical Society 2004
Long Pan Michelle B Sander Xiaoying Huang Jing Li Milton Smith Edward Bittner Bradley Bockrath J Karl Johnson

Advancement in hydrogen storage techniques represents one of the most important areas of today's materials research. While extensive efforts have been made to the existing techniques, there is no viable storage technology capable of meeting the DOE cost and performance targets at the present time. New materials with significantly improved hydrogen adsorption capability are needed. Microporous m...

2015
Beatrice Mgaya-Kilima Siv Fagertun Remberg Bernard Elias Chove Trude Wicklund

A study was conducted to determine the effects of packaging materials, seasonality, storage temperature and time on physiochemical and antioxidant properties of roselle-mango juice blends. Roselle extract (20%, 40%, 60%, and 80%) was mixed with mango juice and stored in glass and plastic bottles at 4°C and 28°C. Total soluble solids, pH, titratable acidity, reducing sugar, color, vitamin C, tot...

Journal: :Advanced Materials 2021

The recent progress of cellulose for use in energy storage devices as an appealing natural material that can outperform traditional synthetic materials is described by Sang-Young Lee, Leif Nyholm, and co-workers article number 2000892. Driven its structural/chemical uniqueness, brings exceptional benefits the manufacturing components devices, along with improvements their electrochemical perfor...

Journal: :ACS nano 2014
Tao Chen Yuhua Xue Ajit K Roy Liming Dai

Transparent and/or stretchable energy storage devices have attracted intense attention due to their unique optical and/or mechanical properties as well as their intrinsic energy storage function. However, it remains a great challenge to integrate transparent and stretchable properties into an energy storage device because the currently developed electrodes are either transparent or stretchable,...

2018
PASAM. BHAGYALAKSHMI K. RAJAN K. R. SENTHIL KUMAR

Storing of available energy for later use is a necessity in the present world, one such method is using Phase Change Materials (PCMs). PCMs need a heat transfer medium to transfer the energy from the source to the PCM. In this present work spherical balls are used to store the PCM and water is used as a heat transfer fluid. Paraffin wax (PW) and Palmitic acid (PA) and (4060% PW-PA) eutectic mix...

2004
Xiaoyin Chen Johannes Schwank John Li William F. Schneider Christian T. Goralski Peter J. Schmitz

The usage of lean-burn engines is a promising strategy for improving the fuel economy of vehicles and reducing the emission of greenhouse gas CO2. The most complex challenge for leanburn engines is the need to find a solution for the increased levels of NOx emissions. Lean NOx trap (LNT) or NOx storage-reduction (NSR) catalysts provide a very effective method for NOx removal in lean-burn gasoli...

2016
Murat Alkurt Zeynep Yeşıl Duymus Numan Dedeoglu

PURPOSE The storage conditions of impressions affect the dimensional accuracy of the impression materials. The aim of the study was to assess the effects of storage time on dimensional accuracy of five different impression materials by cone beam computed tomography (CBCT). MATERIALS AND METHODS Polyether (Impregum), hydrocolloid (Hydrogum and Alginoplast), and silicone (Zetaflow and Honigum) ...

Journal: :Brazilian dental journal 2015
Ana Rosa Costa Américo Bortolazzo Correr Simonides Consani Maria Cecília Caldas Giorgi Silvia Amélia Vedovello Mário Vedovello Filho Eduardo Cesar Almada Santos Lourenço Correr-Sobrinho

This study investigated the influence of water storage (24 h and 6 months), and Transbond XT and Fuji Ortho LC bonding materials on the bond strength of metallic brackets bonded to feldspathic ceramic. Four cylinders of feldspathic ceramic were etched with 10% hydrofluoric acid for 60 s. Each cylinder received two layers of silane. Metallic brackets were bonded to the cylinders using Transbond ...

2014
Zhiwei Ge Feng Ye Yulong Ding

Chemical incompatibility and low thermal conductivity issues of molten-salt-based thermal energy storage materials can be addressed by using microstructured composites. Using a eutectic mixture of lithium and sodium carbonates as molten salt, magnesium oxide as supporting material, and graphite as thermal conductivity enhancer, the microstructural development, chemical compatibility, thermal st...

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