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Journal of Hydrodynamics 2019年第4期31卷 669-681页

作者： Ying Guo Li-qin Liu Yan Li chang-shui Xiao You-gang Tang State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University Tianjin 300072 China

The motions of the floating vertical axis wind turbine (VAWT) with consideration of the coupling between the aerodynamics and the hydrodynamics are calculated in this paper. The surge-heave-pitch coupling nonlinear equations of the floating VAWT are established. The aerodynamic loads are obtained by applying the double-multiple-stream tube theory with consideration of the dynamic stall and the floating foundation motion. The motion performances of a 5 MW Φ - Darrieus type floating VAWT are studied with its foundation of the Spar type with heave plates. It is shown that the amplitude of the heave motion of the floating VAWT is small when the heave plates are equipped. The effects of the wind and wave loads on the floating VAWT motions are assessed. The results show that the mean values of the surge and the pitch of the floating VAWT are mainly related to the wind loads;the standard deviations of the surge, the heave, and the pitch are mainly related to the wave loads. In the regular wave cases, the frequencies of the surge, the heave and the pitch are dominated by the wave frequencies, and the components of the 2P responses (caused by the aerodynamic loads) of the pitch are small. The 2P responses of the pitch are more significant in the irregular wave cases as compared with those in the regular wave cases.

关键词： Floating VAWT truss Spar floating foundation surge-heave-pitch motions aerodynamics regular waves irregular waves

Controlled mutual quantum entity authentication using entanglement swapping

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chinese Physics B 2015年第9期24卷 116-124页

作者： Min-Sung Kang chang-Ho Hong Jino Heo Jong-In Lim Hyung-Jin Yang Center for Information Security Technologies (CIST) Korea University Graduate School of Information Security Korea University Department of Physics Korea University

In this paper, we suggest a controlled mutual quantum entity authentication protocol by which two users mutually certify each other on a quantum network using a sequence of Greenberger–Horne–Zeilinger（GHZ）-like states. Unlike existing unidirectional quantum entity authentication, our protocol enables mutual quantum entity authentication utilizing entanglement swapping; moreover, it allows the managing trusted center（TC） or trusted third party（TTP） to effectively control the certification of two users using the nature of the GHZ-like state. We will also analyze the security of the protocol and quantum channel.

关键词： quantum authentication quantum cryptography quantum communication GHZ-like state

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预置表面裂缝对混凝土中氯离子传输的影响

建筑材料学报 2011年第4期14卷 550-553页

作者：张士萍刘加平缪昌文江苏省建筑科学研究院有限公司江苏南京210008 东南大学材料科学与工程学院江苏南京210096

分别采用氯离子扩散系数快速测定方法(RCM法)以及氯离子稳态迁移方法,研究了表面单个裂缝对混凝土材料中氯离子传输性能的影响.结果表明:RCM法并不适用于评价带裂缝混凝土的氯离子扩散性能,而采用氯离子稳态迁移方法评价带裂缝混凝土的... 详细信息

分别采用氯离子扩散系数快速测定方法(RCM法)以及氯离子稳态迁移方法,研究了表面单个裂缝对混凝土材料中氯离子传输性能的影响.结果表明:RCM法并不适用于评价带裂缝混凝土的氯离子扩散性能,而采用氯离子稳态迁移方法评价带裂缝混凝土的氯离子迁移性能比较合理.根据开裂混凝土试件电场加速氯离子稳态迁移试验结果发现,裂缝的存在加强了氯离子在混凝土中的传输,并且当裂缝宽度d≥123μm时,氯离子迁移系数随着裂缝宽度的增加而显著增加.

关键词：裂缝稳态迁移氯离子迁移系数

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社会转型与法学研究意识的更新

现代法学 2003年第4期25卷 41-45页

作者：强昌文吉林大学法学院长春130021

中国社会已进入了全面的转型时期,法学家的地位非常凸显。在此之际,法学家和研究要有所为,必须要更新观念和意识。文章强调在新时期必须强化七点意识:主体意识、个性意识、超越意识、批判意识、民众意识、绿色意识、发展意识。

关键词：社会转型法学研究主体意识法律思想创造精神批判意识民众意识绿色意识发展意识

Optimization of reaction conditions for the electroleaching of manganese from low-grade pyrolusite

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International Journal of Minerals,Metallurgy and Materials 2015年第11期22卷 1121-1130页

作者： Xing-ran Zhang Zuo-hua Liu Xing Fan Xin Lian chang-yuan Tao College of Chemistry and Chemical Engineering Chongqing University Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization

In the present study, a response surface methodology was used to optimize the electroleaching of Mn from low-grade pyrolusite. Ferrous sulfate heptahydrate was used in this reaction as a reducing agent in sulfuric acid solutions. The effect of six process variables, including the mass ratio of ferrous sulfate heptahydrate to pyrolusite, mass ratio of sulfuric acid to pyrolusite, liquid-to-solid ratio, current density, leaching temperature, and leaching time, as well as their binary interactions, were modeled. The results revealed that the order of these factors with respect to their effects on the leaching efficiency were mass ratio of ferrous sulfate heptahydrate to pyrolusite 〉 leaching time 〉 mass ratio of sulfuric acid to pyrolusite 〉 liquid-to-solid ratio 〉 leaching temperature 〉 current density. The optimum conditions were as follows： 1.10：1 mass ratio of ferrous sulfate heptahydrate to pyrolusite, 0.9：1 mass ratio of sulfuric acid to pyrolusite, liquid-to-solid ratio of 0.7：1, current density of 947 A/m^2, leaching time of 180 min, and leaching temperature of 73°C. Under these conditions, the predicted leaching efficiency for Mn was 94.1%; the obtained experimental result was 95.7%, which confirmed the validity of the model.

关键词： pyrolusite manganese ore treatment electroleaching reaction conditions optimization

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20CrMnMo钢的复合强化研究

热加工工艺 2007年第22期36卷 70-72页

作者：张世英迟长志辽宁工程技术大学材料科学与工程系辽宁阜新123000

对20CrMnMo进行亚温淬火热处理和冷拉形变的复合强韧化研究。分析了亚温淬火工艺及形变过程中组织和力学性能的变化规律。结果表明:20CrMnMo钢经预淬火+770℃亚温淬火+200℃低温回火+2.5%左右的冷拉形变+低温时效处理后具有良好的强度... 详细信息

对20CrMnMo进行亚温淬火热处理和冷拉形变的复合强韧化研究。分析了亚温淬火工艺及形变过程中组织和力学性能的变化规律。结果表明:20CrMnMo钢经预淬火+770℃亚温淬火+200℃低温回火+2.5%左右的冷拉形变+低温时效处理后具有良好的强度和塑性配合,其抗拉强度为1140MPa,断面收缩率为51.26%,伸长率为11.40%。

关键词：亚温淬火复合强化冷拉形变

Two case reports of gastroendoscopy-associated Acinetobacter baumannii bacteremia

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World Journal of Gastroenterology 2013年第18期19卷 2835-2840页

作者： chang-Hua Chen Shun-Sheng Wu chieh-Chen Huang Section of Infectious Diseases Department of Internal Medicine Changhua Christian Hospital Changhua 500 Taiwan Section of Gastroenterology Department of Internal Medicine Changhua Christian Hospital Changhua 500 Taiwan Department of Life Science College of Life Science National Chung Hsing University Taichung 402 Taiwan

Two cases of gastroendoscopy-associated Acinetobacter baumannii (A. baumannii ) bacteremia were discovered at the study hospital. The first case was a 66-year-old woman who underwent endoscopic retrograde cholangiopancreatography and endoscopic retrograde papillotomy, and then A. baumannii bacteremia occurred. The second case was a 70-year-old female who underwent endoscopic retrograde biliary drainage due to obstruction of intra-hepatic ducts, and bacteremia occurred due to polymicrobes (Escherichia coli , viridans streptococcus , and A. baumannii ). After a literature review, we suggest that correct gastroendoscopy technique and skill in drainage procedures, as well as antibiotic prophylaxis, are of paramount importance in minimizing the risk of gastroendoscopy-associated bacteremia.

关键词： Endoscopy Acinetobacter baumannii Bacteremia Antibiotic prophylaxis

Partial channel information feedback mechanism for FFR-based multi-channel systems

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The Journal of china Universities of Posts and Telecommunications 2010年第1期17卷 19-24,43页

作者： XI Wei YIN chang-chuan YUE Guang-xin SUN Hong-mei Laboratory of Wirekess Communication Systems and Networks School of Information and Communication Engineering Bijjing University of Posts and Telecommunications Beijing 100876 China Communication Technology Laboratory Intel China Research Canter Beijing 100190 China

This article puts forward a partial channel state information （CSI） feedback scheme for fractional frequency reuse （FFR）-based orthogonal frequency division multiple access （OFDMA） systems. Efficient CSI feedback strategy plays an important role in opportunistic scheduling because base station （BS） can employ adaptive modulation and coding （AMC） technique to adaptively change transmission rates according to CSI feedback, and therefore the spectrum efficiency can be improved significantly. On the other hand, FFR is a simple but effective technique to improve the throughput of users at cell edge. To exploit opportunistic scheduling in FFR-based OFDMA systems, both users and spectrum are divided into multiple groups in this article, and specific feedback pattern is designed for each user group on each spectrum sub-band. Simulations results prove that the proposed algorithm can reduce the feedback load significantly, while maintain nearly the same performance as the system with full feedback.

关键词： CSI feedback FFR multiuser diversity OFDMA opportunistic scheduling

Semiconducting polymer dots with photosensitizer loading and peptide modification for enhanced cell penetration and photodynamic effect

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chinese Chemical Letters 2017年第11期28卷 2164-2168页

作者： Ying Tang Zi-Hui Meng Hong Xu chang-Feng Wu Department of Gastroenterology The First Hospital of Jilin University Changchun 130021 China Department of Hepatobiliary-Pancreatic Surgery China-Japan Union Hospital of Jilin University Changchun 130033 China Department of Biomedical Engineering Southern University of Science and Technology Shenzhen 510855 China

This letter describes semiconducting polymer dots （Pdots） doped with a photosensitizer and modified with a cell penetrating peptide for photodynamic therapy （PDT）. The resulting Pdots exhibited efficient singlet oxygen （^1O2） generation mediated by intraparticle energy transfer. Experimental results indicated that the peptide-coated Pdots could promote the cellular uptake and increase the penetration efficiency in vitro, and effectively suppressed tumor growth and enhanced the photodynamic effect in vivo. Our results demonstrate that Pdots with photosensitizer loading and peptide modification hold great promise for cancer therapy.

关键词： Photodynamic therapy Cell penetrating peptides Polymer dots Photosensitizer Cancer

Therapeutic Role of chinese Medicine Targeting Nrf2/HO-1 Signaling Pathway in Myocardial Ischemia/Reperfusion Injury

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chinese Journal of Integrative Medicine 2024年第10期30卷 949-960页

作者： LIU chang-xing GUO Xin-yi ZHOU Ya-bin WANG He First Clinical Medical School Heilongjiang University of Chinese MedicineHarbin150040China Clinical Medical School Chengdu University of Traditional Chinese MedicineChengdu610036China Department of Cardiology the First Affiliated Hospital of Heilongjiang University of Chinese MedicineHarbin150040China

Acute myocardial infarction(AMI),characterized by high incidence and mortality rates,poses a significant public health *** therapy,though the preferred treatment for AMI,often exacerbates cardiac damage,leading to myocardial ischemia/reperfusion injury(MI/RI).Consequently,the development of strategies to reduce MI/RI is an urgent priority in cardiovascular *** medicine,recognized for its multi-component,multi-pathway,and multi-target capabilities,provides a novel approach for alleviating MI/RI.A key area of interest is the nuclear factor E2-related factor 2(Nrf2)/heme oxygenase-1(HO-1)*** pathway is instrumental in regulating inflammatory responses,oxidative stress,apoptosis,endoplasmic reticulum stress,and ferroptosis in MI/*** paper presents a comprehensive overview of the Nrf2/HO-1 signaling pathway's structure and its influence on MI/***,it reviews the latest research on leveraging chinese medicine to modulate the Nrf2/HO-1 pathway in MI/RI treatment.

关键词： nuclear factor E2-related factor 2/heme oxygenase-1 signaling pathway myocardial ischemia/reperfusion injury chinese medicine mechanisms