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排序方式: 共有238条查询结果,搜索用时 281 毫秒
141.
Abbas A Tian L Kattumenu R Halim A Singamaneni S 《Chemical communications (Cambridge, England)》2012,48(11):1677-1679
The ability to stop the self-assembly of gold nanocrystals at a desired stage of the process provides new leverage to understand and control the dynamics of self-assembly. Herein, competitive ligands are used to unfavor the interaction of the cross-linker with the gold surface and terminate the growth reaction of gold nanoparticles and nanorod chains. 相似文献
142.
We study the dynamics of entanglement in a two-qubit system interacting with a squeezed thermal bath via a dissipative system-reservoir interaction with the system and reservoir assumed to be in a separable initial state. The resulting entanglement is studied by making use of concurrence as well as a recently introduced measure of mixed state entanglement via a probability density function which gives a statistical and geometrical characterization of entanglement by exploring the entanglement content in the various subspaces spanning the two-qubit Hilbert space. We also make an application of the two-qubit dissipative dynamics to a simplified model of quantum repeaters. 相似文献
143.
Velázquez F Arasappan A Chen K Sannigrahi M Venkatraman S McPhail AT Chan TM Shih NY Njoroge FG 《Organic letters》2006,8(4):789-792
[reaction: see text] A highly stereoselective synthesis of beta-amino sulfones and sulfonamides via addition of sulfonyl anions to chiral N-sulfinyl imines is described. The addition reaction proceeds in good yield (75-99%) and stereoselectivity. 相似文献
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Karuppiah Chelladurai Cheemalapati Srikanth Chen Shen-Ming Palanisamy Selvakumar 《Ionics》2015,21(1):231-238
Ionics - A simple and sensitive electrochemical method was proposed for the quantitative determination of nonsteroidal anti-inflammatory drug diclofenac (DCF). For the first time,... 相似文献
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Janakiramudu Dasari Balija Subba Rao Devineni Srikanth Chilukuru Madhusudhana Saddala Sreenivasa Murthy Poojary Nagalakshmidevamma Mundla Chalapathi Ponne Venkata Naga Raju Chamarthi 《Research on Chemical Intermediates》2018,44(1):469-489
Research on Chemical Intermediates - The precursor compound 3-fluoro-4-morpholinoaniline (7) is an important intermediate of the antibiotic drug linezolid and was synthesized initially by the... 相似文献
149.
A series of 2-(p-fluorobenzyl)-3-aryl-6-methoxybenzofurans has been prepared in good yields in a two-step sequence from the corresponding benzylidencoumaranones (aurones). 相似文献
150.
Bharadwaj R. Prabhala Mahesh V. Panchagnula Srikanth Vedantam 《Colloid and polymer science》2013,291(2):279-289
In this paper, we study equilibrium three-dimensional shapes of drops on hysteretic surfaces. We develop a function coupled with the publicly available surface energy minimization code Surface Evolver to handle contact angle hysteresis. The function incorporates a model for the mobility of the triple line into Surface Evolver. The only inputs to the model are the advancing and receding contact angles of the surface. We demonstrate this model’s versatility by studying three problems in which parts of the triple line advance while other parts either recede or remain stationary. The first problem focuses on the three-dimensional shape of a static pendant drop on a vertical surface. We predict the finite drop volume when impending sliding motion is observed. In the second problem, we examine the equilibrium shapes of coalescing sessile drops on hysteretic surfaces. Finally, we study coalescing puddles in which gravity plays a leading role in determining the equilibrium puddle shape along with hysteresis. 相似文献