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Recursive estimation algorithms for power controls of wireless communication networks

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控制理论与应用（英文版） 2008年第3期6卷 225-232页

作者： Gang George YIN Chin-An TAN le Yi wang Chengzhong XU Department of Mathematics Wayne State University Detroit Michigan 48202 USA Department of Mechanical Engineering Wayne State University Detroit Michigan 48202 USA Department of Electrical and Computer Engineering Wayne State University Detroit Michigan 48202 USA

Power control problems for wireless communication networks are investigated in direct-sequence codedivision multiple-access （DS/CDMA） channels. It is shown that the underlying problem can be formulated as a constrained optimization problem in a stochastic framework. For effective solutions to this optimization problem in real time, recursive algorithms of stochastic approximation type are developed that can solve the problem with unknown system components. Under broad conditions, convergence of the algorithms is established by using weak convergence methods.

关键词： Recursive estimation Power control DS/CDMA Stochastic approximation Constrained optimization

Significantly reduced function of T cells in patients with acute arterial thrombosis

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Journal of Geriatric Cardiology 2015年第3期12卷 287-293页

作者： Wen-Wen YAN Kun-Shan ZHANG Qiang-Lin DUAN le-Min wang i University School of Medicine ShanghaL China

Objectives To explore the intrinsic factors related to the pathogenesis of acute arterial thrombosis （AAT） and to elucidate the patho- genesis of AAT on the basis of differentially expressed genes. Methods Patients with acute myocardial infarction （AMI）, stable angina （SA） and healthy controls （n = 20 per group） were recruited, and the whole human genome microarray analysis was performed to detect the differentially expressed genes among these subjects. Results Patients with AMI had disease-specific gene expression pattern. Biological functional analysis showed the function of T cells was significantly reduced, the mitochondrial metabolism significantly decreased, the ion metabolism was abnormal, the cell apoptosis and inflammatory reaction increased, the phagocytosis elevated, the neutrophil-mediated immunity increased and the post-traumatic repair of cells and tissues increased in AMI patients. The biological function in SA group and healthy controis remained stable and was comparable. Conclusions The reduced function ofT cell gene models in AAT showed the dysfunction of the immune system. The pathogenesis of AAT may be related to the inflammatory reaction after arterial intima infection caused by potential pathogenic microorganisms.

关键词： Acute arterial thrombosis Gene expression pattern Myocardial infarction Stable angina

Constructed Mott-Schottky Heterostructure Catalyst to Trigger Interface Disturbance and Manipulate Redox Kinetics in Li-O_(2) Battery

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Nano-Micro letters 2024年第12期16卷 42-58页

作者： Yongji Xia le wang Guiyang Gao Tianle Mao Zhenjia wang Xuefeng Jin Zheyu Hong Jiajia Han Dong-Liang Peng Guanghui Yue State Key Lab of Physical Chemistry of Solid Surface Fujian Key Laboratory of Surface and Interface Engineering for High Performance MaterialsCollege of MaterialsXiamen UniversityXiamen 361005People’s Republic of China

Lithium-oxygen batteries(LOBs)with high energy density are a promising advanced energy storage ***,the slow cathodic redox kinetics during cycling causes the discharge products to fail to decompose in time,resulting in large polarization and battery failure in a short ***,a self-supporting interconnected nanosheet array network NiCo_(2)O_(4)/MnO_(2)with a Mott-Schottky heterostructure on titanium paper(TP-NCO/MO)is ingeniously designed as an efficient cathode catalyst material for *** heterostructure can accelerate electron transfer and influence the charge transfer process during adsorption of intermediate by triggering the interface disturbance at the heterogeneous interface,thus accelerating oxygen reduction and oxygen evolution kinetics and regulating product decomposition,which is expected to solve the above *** meticulously designed unique structural advantages enable the TP-NCO/MO cathode catalyst to exhibit an astounding ultra-long cycle life of 800 cycles and an extraordinarily low overpotential of 0.73 *** study utilizes a simple method to cleverly regulate the morphology of the discharge products by constructing a Mott-Schottky heterostructure,providing important reference for the design of efficient catalysts aimed at optimizing the adsorption of reaction intermediates.

关键词： Mott-Schottky heterostructure Lithium-oxygen batteries Electrocatalysts Electrodeposition

Multifunctional Semiconducting Fibers for Visual Detection of Sarin Gas

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Advanced Fiber Materials 2023年第5期5卷 1632-1642页

作者： Maomao Yao Ruilong Zhou Mingshuai Yuan Haoyu wang le wang Hengda Sun Yanyan Fu Ru Xiao Hongzhi wang Gang wang Meifang Zhu State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

There is a growing need for protective instruments that can be used in extreme environments,including those encountered during exoplanet exploration,anti-terrorism activities,and in chemical *** instruments should have the ability to detect external threats visually and monitor internal physiological signals in real time for maximum *** address this need,multifunctional semiconducting fibers with visual detection ranging from yellow to red and near-field communication(NFC)capabilities have been developed for use in personal protective clothing.A composite conductive yarn with semiconducting fluorescent probe molecules is embroidered on the clothing,forming an NFC coil that allows for the visual monitoring of atmospheric safety through color *** fluorescence detection system was able to selectively detect diethyl chlorophosphate(DCP),a substitute for the toxic gas sarin,with a detection limit of 6.08 ppb,which is lower than the life-threatening concentration of sarin ***,an intelligent protective suit with the abovementioned dual functions was fabricated with good mechanical cycle stability and ***-time physiological signals such as the temperature and humidity of the wearer could be read through the NFC *** intelligent protective suits can quickly provide an early warning to the identified low-dose DCP and evaluate the health of wearer according to the changes in physiological *** study offers a smart,low-cost strategy for designing intelligent protective devices for extreme environments.

关键词： Multifunctional semiconducting fibers Visual detection Near-field communication(NFC) Fluorescence detection Intelligent protective suits

基于光谱分析的鞣花酸和尿石素A~D与HSA相互作用机理研究

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光谱学与光谱分析 2025年第1期45卷 282-290页

作者：谢星程鑫鹏张露罗晶王乐怀林文静卢菲艳涂宗财江西师范大学健康学院食品营养与健康系江西南昌330022 南昌大学食品科学与资源挖掘全国重点实验室江西南昌330047

采用光谱分析结合分子模拟技术探究了鞣花酸(EA)及其代谢产物尿石素A~D(UA~D)与人血清白蛋白(HSA)的相互作用机理,有助于解析其药理毒性和药效。研究结果表明EA和UA~D能与HSA以1∶1的摩尔比例结合并通过静态方式猝灭HSA的荧光。UA和UC与... 详细信息

采用光谱分析结合分子模拟技术探究了鞣花酸(EA)及其代谢产物尿石素A~D(UA~D)与人血清白蛋白(HSA)的相互作用机理,有助于解析其药理毒性和药效。研究结果表明EA和UA~D能与HSA以1∶1的摩尔比例结合并通过静态方式猝灭HSA的荧光。UA和UC与HSA结合是氢键和范德华力驱动的放热过程,而EA和UD与HSA结合疏水相互作用驱动的吸热过程。三维荧光图谱分析表明UC~D和EA与UA~B分别增加了HSA色氨酸和酪氨酸微环境的亲水性和疏水性。分子模拟分析结果表明,EA和UA~D与HSA的活性氨基酸残基Lys436、Asp187、Lys432、Arg485、leu430、leu4、Ile388、Tyr411等形成氢键,与氨基酸残基Ala191、Val456、Lys199和Trp214之间存在疏水相互作用,证明其主要通过氢键和范德华力与HSA结合,屏蔽HSA的糖基化位点,抑制其糖基化。可为EA和UA~D作为糖基化抑制剂用于治疗糖尿病并发症奠定理论基础。

关键词：人血清白蛋白糖基化相互作用机理光谱分析鞣花单宁及其代谢产物

LiCoO_(2) Epitaxial Film Enabling Precise Analysis of Interfacial Degradations

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Chinese Physics letters 2021年第6期38卷 88-94页

作者： Changdong Qin le wang Pengfei Yan Yingge Du Manling Sui Beijing Key Laboratory of Microstructure and Property of Solids Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Physical and Computational Sciences Directorate Pacific Northwest National Laboratory RichlandWA 99354USA

Interfacial structure evolution and degradation are critical to the electrochemical performance of LiCoO_(2)(LCO),the most widely studied and used cathode material in lithium ion *** understand such processes requires precise and quantitative ***,we use well-defined epitaxial LCO thin films to reveal the interfacial degradation *** our systematical investigations,we find that surface corrosion is significant after forming the surface phase transition layer,and the cathode electrolyte interphase(CEI)has a double layer structure,an inorganic inner layer containing CoO,LiF,LiOH/Li_(2)O and Li_(x)PF_(y)O_(2),and an outmost layer containing Li2CO_(3) and organic carbonaceous ***,surface cracks are found to be pronounced due to mechanical failures and chemical *** work demonstrates a model material to realize the precise measurements of LCO interfacial degradations,which deepens our understanding on the interfacial degradation mechanisms.

关键词： corrosion interfacial precise

The radiation response of androgen-refractory prostate cancer cell line C4-2 derived from androgen-sensitive cell line LNCaP

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Asian Journal of Andrology 2010年第3期12卷 405-414,I0011页

作者： Bang-Xiang Xie Hui Zhang Lan Yu Jian wang Bo Pang Rui-Qin Wu Xiao-Long Qian Shan-Hu Li Qing-Guo Shi le-le wang Jian-Guang Zhou Laboratory of Molecular Biology of Medicine Beijing Institute of Bioteehnology Beijing 100850 China National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing 100052 China

Radiation therapy is a relatively effective therapeutic method for localized prostate cancer （PCa） patients. However, radioresistance occurs in nearly 30% of patients treated with potentially curative doses. Therapeutic synergy between radiotherapy and androgen ablation treatment provides a promising strategy for improving the clinical outcome. Accordingly, the androgen deprivation-induced signaling pathway may also mediate radiosensitivity in PCa cells. The C4-2 cell line was derived from the androgen-sensitive LNCaP parent line under androgen-depleted condition and had acquired androgen-refractory characteristics. In our study, the response to radiation was evaluated in both LNCaP and C4-2. Results showed that C4-2 cells were more likely to survive from irradiation and appeared more aggressive in their resistance to radiation treatment compared with LNCaP, as measured by clonogenic assays and cell viability and cell cycle analyses. Gene expression analyses revealed that a set of genes involved in cell cycle arrest and DNA repair were differentially regulated in LNCaP and C4-2 in response to radiation, which was also consistent with the radiation-resistant property observed in C4-2 cells. These results strongly suggested that the radiation-resistant property may develop with progression of PCa to androgen- independent status. Not only can the LNCaP and C4-2 PCa progression model be applied for investigating androgen-refractory progression, but it can also be used to explore the development of radiation resistance in PCa.

关键词： LNCaP C4-2 prostate cancer radiation response

Simvastatin enhanced growth and altered testis transcriptome profiles of male tilapias

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Aquaculture and Fisheries 2024年第6期9卷 893-899页

作者： Zituo Yang Fei Sun le wang Gen Hua Yue Molecular Population Genetics and Breeding Group Temasek Life Sciences Laboratory1 Research LinkNational University of Singapore117604Singapore Department of Biological Sciences National University of Singapore14 Science Drive 4117543Singapore

Simvastatin(SIM),a commonly prescribed drug for lowering serum-lipid,has been detected in many aquatic *** to high concentrations of SIM in rats and aquatic organisms resulted in toxicity to hepatocytes and negative effects on ***,there is a paucity of studies on the effects of long-term exposure to low concentrations of SIM on aquaculture *** study aimed to analyze the effects of environmentally relevant concentrations(0.1μg/L and 1μg/L)of SIM exposure for two months on developing Mozambique ***,the growth of male tilapias was enhanced after a 2-month SIM *** analysis of testis histology revealed that after the SIM exposure,the development of the testis was delayed,and sperm production was *** of testis transcriptomes showed that the exposure to SIM altered the expression of many genes related to the development of testes and *** data suggest that a 2-month exposure to environmentally relevant concentrations of increases the growth of male tilapias by inhibiting sexual development of males.

关键词： Fish Statin Growth Reproduction Aquaculture

Culprit vessel only versus ＂one-week＂ staged percutaneous coronary intervention for multivessel disease in patients presenting with ST-segment elevation myocardial infarction

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Journal of Geriatric Cardiology 2015年第3期12卷 226-231页

作者： Li-Xiang MA Zhen-Hua LU le wang Xin DU Chang-Sheng MA Department of Cardiology Beijing Anzhen Hospital Capital Medical University Beo'ing China

Objective To explore the impact of a ＂one-week＂ staged muhivessel percutaneous coronary intervention （PCI） versus culprit-only PCI on deaths and major adverse cardiac events （MACE）. Methods We retrospectively analyzed 447 patients with multivessel disease who experienced a ST-segment elevation myocardial infarction （STEMI） within 12 h before undergoing PCI between July 26, 2008 and Septem- ber 25, 201 l. After completion of PCI in the infarct artery, 201 patients still in the hospital agreed to undergo PCI in non-infarct arteries with more than 70% stenosis for a ＂one-week＂ staged multivessel PCI. A total of 246 patients only received intervention for the culprit vessel. Follow-up ended on September 9, 2014. This study examined the differences in deaths from any cause （i.e., cardiac and noncardiac） and MACE between the two treatment groups. Results Compared to a culprit-only PCI treatment approach, the ＂one-week＂ staged multivessel PCI was strongly associated with greater benefits for 55-month all cause death [41 （16.7%） vs. 13 （6.5%）, P = 0.004] and MACE [82 （33.3%） vs. 40 （19.9%）, P = 0.002] rates. In addition, there were significant differences in the number of myocardial infarctions [43 （17.5%） vs. 20 （10.0%）, P = 0.023], coronary-artery bypass grafting [CABG; 20 （8.1%） vs. 6 （3.0%）, P = 0.021], and PCI [31 （12.6%） vs. 12 （6.0%）, P - 0.018]. Patients undergoing culprit-only PCI compared to ＂one-week＂ PCI had the same number of stent thrombosis events [7 （2.8%） vs. 3 （1.5%）, P - 0.522]. Conclusions Compared to a culprit-only PCI treatment approach, ＂one-week＂ staged multi-vessel PCI was a safe and effective selection for STEMI and multi-vessel PCL

关键词： ST-segment elevation myocardial infarction Percutaneous coronary intervention Multivessel revascularization