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Search Results: 1 - 10 of 66155 matches for " FENG Yan "
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The Introduction of Specific Water and Maximum Airborne Specific Water & the Improvement of Dynamic Equations on Non-Uniform Saturated Moist Atmosphere  [PDF]
Xingrong Wang, Yan Feng
Atmospheric and Climate Sciences (ACS) , 2015, DOI: 10.4236/acs.2015.53018
Abstract: To eliminate the irrational supposition that condensed liquid water always falls immediately, specific water m?and maximum airborne specific water mm are introduced into the dynamic framework on non-uniform saturated moist atmosphere (m?is the ratio of the airborne liquid water mass to the moist air mass in unit cubage moist air, mm is its maximum value with \"\" , \"\" , \"\" and \"\" are airborne coefficient, vertical velocity and saturated specific humidity respectively). The balance equation between water vapor and airborne liquid water is derived. From the balance equation, a new formula of precipitate rate is got. The analysis shows that in the air stream with some upward vertical velocity (\"\" ), the condensed liquid water can precipitate under the condition with \"\" (q is specific humidity) and?\"\" only, otherwise it is detained in the air and becomes airborne liquid water. Not only does precipitating liquid water contain condensed liquid water, but also contains converged and existing airborne liquid water. Following above discussion, improved dynamic equations on non-uniform saturated moist atmosphere are provided.
A marriage of chemistry and biology
Yan Feng
Chinese Science Bulletin , 2003, DOI: 10.1007/BF03184204
Abstract:
The Design of an Intelligent Security Access Control System Based on Fingerprint Sensor FPC1011C  [PDF]
Yan Wang, Hongli Liu, Jun Feng
Circuits and Systems (CS) , 2010, DOI: 10.4236/cs.2010.11005
Abstract: This paper deals with the design of an intelligent access control system based on the fingerprint sensor FPC- 1011C. The design uses the S3C2410 and TMS320VC5510A as the system processor. A fingerprint acquisition module and a wireless alarm module were designed by using the fingerprint sensor FPC1011C and GPRS module SIM100 respectively. The whole system was implemented wireless alarm through messages and GPRS-Internet in the GSM/GPRS web. In order to achieve the simple and high Real-time system, the μC-Linux system migration was also implemented.
Toll-Like Receptors and Myocardial Inflammation
Yan Feng,Wei Chao
International Journal of Inflammation , 2011, DOI: 10.4061/2011/170352
Abstract: Toll-like receptors (TLRs) are a member of the innate immune system. TLRs detect invading pathogens through the pathogen-associated molecular patterns (PAMPs) recognition and play an essential role in the host defense. TLRs can also sense a large number of endogenous molecules with the damage-associated molecular patterns (DAMPs) that are produced under various injurious conditions. Animal studies of the last decade have demonstrated that TLR signaling contributes to the pathogenesis of the critical cardiac conditions, where myocardial inflammation plays a prominent role, such as ischemic myocardial injury, myocarditis, and septic cardiomyopathy. This paper reviews the animal data on (1) TLRs, TLR ligands, and the signal transduction system and (2) the important role of TLR signaling in these critical cardiac conditions. 1. Introduction Innate immune system represents the first line of defense against foreign pathogens. Toll-like receptors (TLRs) belong to the family of pattern recognition receptors (PRRs). PRRs recognize the conserved motifs in pathogens termed pathogen-associated molecular patterns (PAMPs) and trigger innate immune response [1, 2]. In addition to participating in the host defense against infectious pathogens, accumulating evidence suggests that TLRs also play an essential role in tissue inflammationand contribute to “noninfectious” tissue damage such as cardiac ischemia/reperfusion (I/R) injury, postischemic remodeling, and atherosclerosis [3–6]. Thus, understanding TLR signaling and their role in cardiovascular diseases may help to identify potential targets for intervention and have important clinical implications. This paper reviews TLR signaling and its critical roles in several inflammatory cardiac conditions: I/R injury, viral and autoimmune myocarditis, and septic cardiomyopathy. 2. Toll-Like Receptors Toll means “amazing” and “fantastic” in German. In 1985, Anderson and colleagues coined it for a protein critical for early embryonic development of Drosophila [7, 8]. A decade later, Lemaitre et al. found that this protein was also essential to the host innate immunity against fungal infection in adult flies [9]. Subsequently, Medzhitov and colleagues identified a mammalian homologue of the Drosophila Toll protein in human and termed it “Toll-like receptor” [10]. Stimulation of TLR signaling leads to the activation of transcription factors such as NF-κB, one of the most important proinflammatory transcription factors. To date, 11 human and 13 mouse TLRs have been cloned. TLR1-TLR9 are conserved in both human and mouse, and all
A marriage of chemistry and biology
FENG Yan,
FENGYan

科学通报(英文版) , 2003,
Abstract: 1 Feature: Harvard Institute of Chemistry and Cell Biology (ICCB) One of the major challenges of post-genomic world is how to identify functions of all the proteins encoded by our genome and speed up the process of drug discovery. Harvard Institute of Chemistry and Cell Biology (ICCB) was set up in 1998 to meet this challenge by pursuing a novel field called "Chemical Biology". ICCB is headed by world-renowned chemist Dr. Stuart Schreiber and biologist Dr. Tim Mitchison. Currently ICCB consists of 14 laboratories from the Department of Cell Biology, Harvard Medical School, at Boston and the Department of Chemistry, Harvard University, at Cambridge. Three core facilities, High-throughput Screening, Analytical Chemistry and Biological/Chemical Informatics, are open to the whole Harvard research community for identification of novel chemical ligands for interested biology. ICCB currently employs about 50 researchers and occupies around 10000 sq. ft. of lab space at Harvard Medical School campus. ICCB is supported by grants from NCI and NIGMS as well as by private funding from Merck, Merck KGaA, and the Keck foundation.
1,2-Bis(bromomethyl)-4,5-dimethoxybenzene
Feng-yan Zhou
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809030001
Abstract: Colourless crystals of the title compound, C10H12Br2O2, were synthesized from 1,2-dimethoxybenzene. The crystal structure is stabilized by intermolecular C—H...O hydrogen bonds.
Escape-Route Planning of Underground Coal Mine Based on Improved Ant Algorithm
Guangwei Yan,Dandan Feng
Mathematical Problems in Engineering , 2013, DOI: 10.1155/2013/687969
Abstract:
Effects of the Chinese patent medicine, Honghua Injection, on platelet glycoprotein Ⅱb/Ⅲa receptors in patients with acute coronary syndrome: a randomized controlled trial
Yan-feng Zhu
Zhong Xi Yi Jie He Xue Bao , 2012,
Abstract:
Application of Dynamic Programming Model in Stock Portfolio—under the Background of the Subprime Mortgage Crisis
Feixue Yan,Feng Bai
International Journal of Business and Management , 2009, DOI: 10.5539/ijbm.v4n3p178
Abstract: Known as "Financial 9.11", the U.S. subprime mortgage crisis causes great shock to the global economy. Meanwhile, global stock markets are in constant turmoil and suffer heavy losses one after another. Stock portfolio can disperse investment risks effectively to maximize investment income. This paper introduces dynamic programming method, establishes dynamic programming model and allocates funds between stocks in stock portfolio reasonably so as to maximize income, thus providing an effective approach to solute similar fund allocation issues.
Study on the Composition of Regional Scientific and Technological Innovative Competence and its Upgrade Mechanism
Yingjuan Feng,Yan Wang
Journal of Sustainable Development , 2009, DOI: 10.5539/jsd.v2n2p155
Abstract: At present, the world economy is shifting to the model of knowledge-based economy, knowledge and technology to economic growth has greatly exceeded the sum of the contribution of capital, labor and natural resources and become the most important economic factors, economic growth rely on scientific and technological progress than before, scientific and technological innovation is more important than ever before, it is becoming the main causes and the most direct driving force of a region or country's economic growth and development. This paper starts from the meaning of regional scientific and technological innovative competence; analyze the composition and upgrade mechanism of regional scientific and technological innovative competence.
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