نتایج جستجو برای: cmp

تعداد نتایج: 2434  

Journal: :Science China. Materials 2021

Developing methods to construct conjugated microporous polymers (CMPs) with desirable structures is a crucial undertaking. However, obtaining azo-CMPs extended azaacene cores immensely challenging. Herein, we disclose the facile synthesis of diquinoxalino[2,3-a:2?,3?-c]-phenazine-core CMP (3Qn-CMP; core diameter, ?1.6 nm) via one-step hydrothermal homocoupling nitro monomers in mixture solution...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1978
D M Helfman N L Brackett J F Kuo

Changes in levels of the newly discovered cytidine 3':5'-cyclic monophosphate (cyclic CMP) phosphodiesterase in some representative tissues (cerebral cortex, kidney, intestine, liver, heart, and lung) of guinea pigs from various developmental stages (fetus, neonate, pup, and adult) were studied and compared with those of cyclic AMP and cyclic GMP phosphodiesterases in the same tissues. It was o...

2017
Ja Hong Kuh Joon Young Song Tae Youn Kim Jong Hun Kim Jong Bum Choi

BACKGROUND In elderly patients who have atrial fibrillation (AF), surgical ablation of the arrhythmia during cardiac surgery may be challenging. Despite the reported advantages of ablating AF with the Cox maze procedure (CMP), the addition of the CMP may complicate other cardiac operations. We evaluated the effect of the CMP in elderly patients concurrent with other cardiac operations. METHOD...

2007
J. Wamock

As device sizes are scaled to sub-micron dimensions, planarization technology becomes increasingly important, both for bipolar and CMOS trench isolation and for multi-level interconnects and wiring. Although chemi-mechanical polishing (CMP) has been used extensively in silicon technology for wafer preparation[l,2], it is only recently that CMP has emerged as a new technique for achieving a high...

Journal: :Interactive cardiovascular and thoracic surgery 2008
Manuel J Antunes Marta Biernat Emília Sola Luís Oliveira David Prieto Fátima Franco Luís A Providência

The natural history of the LV systolic function (LV-SF) and functional capacity of survivors of heart transplantation (Htx) has not been defined. Some investigators suggest that SF may be different in recipients with different pre-transplant aetiologies: ischaemic or dilated, idiopathic disease. Routine transthoracic echocardiograms (TTE) were performed during a 1-year follow-up in 48 Htx recip...

Journal: :Journal of bacteriology 1974
C F Beck J Neuhard E Thomassen J L Ingraham E Kleker

Mutants of Salmonella typhimurium defective in cytidine 5'-monophosphate (CMP) kinase (cmk) have been isolated. The mutants also lack the ability to phosphorylate 2'-deoxyCMP, indicating that one enzyme is responsible for the phosphorylation of both CMP and deoxyCMP to the corresponding diphosphates. In glucose minimal medium the mutants grow at the same rate as the parental strain; however, th...

2007
Vishwanath Joshi Alexei O. Orlov Gregory L. Snider

In this article, the authors report experimental results of the chemical mechanical polishing CMP of silicon dioxide SiO2 and polysilicon to produce nanoscale features with very smooth surfaces. The sizes of the features polished ranged from 30 to 500 nm. For polysilicon polishing, the nanostructures were defined in positive tone e-beam resist and the pattern was transferred to the oxide substr...

Journal: :The Plant journal : for cell and molecular biology 2017
Daniel Decker Christopher Öberg Leszek A Kleczkowski

UDP-sugars serve as ultimate precursors in hundreds of glycosylation reactions (e.g. for protein and lipid glycosylation, synthesis of sucrose, cell wall polysaccharides, etc.), underlying an important role of UDP-sugar-producing enzymes in cellular metabolism. However, genetic studies on mechanisms of UDP-sugar formation were frequently hampered by reproductive impairment of the resulting muta...

2003
Jose Renau Smruti Sarangi James Tuck Karin Strauss Luis Ceze Wei Liu Josep Torrellas

While Chip Multiprocessors (CMP) with Speculative Multithreading (SM) have been gaining momentum, experienced processor designers in industry have reservations about their practical implementation. In particular, it is felt that SM is too energy-inefficient to compete against conventional superscalars. This paper challenges the commonly-held view that SM consumes excessive energy. We show a CMP...

Journal: :Microprocessors and Microsystems 2004
Chao-Chin Wu

Chip multiprocessors (CMPs) aim to develop both instruction-level and thread-level parallelisms to boost a system’s performance. However, according to previous research results, CMPs outperform superscalar processors only in floating-point applications. Therefore, we have proposed a novel microprocessor, supporting two execution modes, to allow users to manually choose an appropriate mode to ex...

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