نتایج جستجو برای: synthesized

تعداد نتایج: 97111  

2006
James L. Thomason

Here are.two broadband, programmable, high-spectral-purity microwave signal sources, a 2-to-1 8-GHz synthesized signal generator and a 2-to-6.2-GHz synthesizer. Both are single, compact, 13-cm-high instruments. tr REQUENCY SYNTHESIZERS are signal sources l' that produce a selected output frequency by some type of arithmetic operation on a stable reference signal, which is usually derived from a...

2005
Win K. Shen Robert T. Tung Yoshihisa Kurachi

Effects of ER-001533 (ER), a newly synthesized vasorelaxant, on the membrane currents were examined in single ventricular cells of guinea pigs. The patch-clamp technique was used in the "whole-cell" and "inside-out" patch configurations. In the whole-cell clamp condition, ER induced a time-independent K'-dominant current, which was inhibited by glibenclamide (1-3 ,uM), suggesting that ER activa...

Journal: :Nano letters 2005
Shifeng Hou Jiahai Wang Charles R Martin

A layer-by-layer deposition strategy for preparing protein nanotubes within the pores of a nanopore alumina template membrane is described. This method entails alternately exposing the template membrane to a solution of the desired protein and then to a solution of glutaraldehyde, which acts as cross-linking agent to hold the protein layers together. The number of layers of protein that make up...

Journal: :Science 2011
A Wirth M Th Hassan I Grguras J Gagnon A Moulet T T Luu S Pabst R Santra Z A Alahmed A M Azzeer V S Yakovlev V Pervak F Krausz E Goulielmakis

Manipulation of electron dynamics calls for electromagnetic forces that can be confined to and controlled over sub-femtosecond time intervals. Tailored transients of light fields can provide these forces. We report on the generation of subcycle field transients spanning the infrared, visible, and ultraviolet frequency regimes with a 1.5-octave three-channel optical field synthesizer and their a...

2010
Carla Heyward Matthew Mann Joseph Kolis

Single crystals of α-Ba(2)P(2)O(7), dibarium diphosphate, were obtained under hydro-thermal conditions. The structure belongs to the diphosphate A(2)P(2)O(7) series with A being an alkaline earth cation. α-Ba(2)P(2)O(7) crystallizes isotypically with α-Sr(2)P(2)O(7). All atomic sites have site symmetry m with the exception of two O atoms which reside on general positions. Both Ba(2+) cations ar...

1998
Jeffrey Van Baalen Peter Robinson Michael R. Lowry Thomas Pressburger

Motivated by NASA’s need for high-assurance software, NASA Ames' Amphion project has developed a generic program generation system based on deductive synthesis. Amphion has a number of advantages, such as the ability to develop a new synthesis system simply by writing a declarative domain theory. However, as a practical matter, the validation of the domain theory for such a system is problemati...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1390

abstract in this study, we synthesized a novel template polymer by using methacrylic acid (mma) as functional monomer, ethylene glycol dimethacrylate(egdma) as cross linker, 2,2-azobisisobutyronitrile (aibn) as initiator and olanzapine as targeted molecule in the presence of chloroform and acetonitrile as solvent. the products have been characterized and confirmed by (chn)elemental analysis,...

Journal: :international journal of nano dimension 0
s. m. e. zakeri separation processes research group (sprg), department of engineering, university of kashan, kashan, iran. m. asghari energy research institute, university of kashan, ghotb-e-ravandi ave., kashan, iran. m. feilizadeh chemical and petroleum engineering deportment, sharif university of technology, tehran, iran. m. vosoughi chemical and petroleum engineering deportment, sharif university of technology, tehran, iran.

a useful nanophotocatalyst (la,s-tio2) was prepared by a sol-gel method and characterized by uv–vis diffuse reflectance spectroscopy (drs), x-ray diffraction (xrd), photoluminescence emission spectroscopy (pl) and scanning electron microscopy (fesem). the results showed that the la,s-tio2, which calcined at 550 °c, contained only anatase phaseand its crystal size was 23 nm. in addition, the fes...

Journal: :The Journal of the Acoustical Society of America 1980

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