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| 1 | Analysis on Factors Related to Rabies Epidemic in China from 2007-2011显示文摘To analyze features of the rabies epidemic in China between 2007 and 2011, identify factors influencing the epidemic and to provide a scientific basis for further control and prevention of rabies, Descriptive epidemiological methods and statistical analysis was used on data collected from the National Disease Reporting Information System between 2007 to 2011 and the National Active Surveillance System between 2007 and 2010. Our analysis shows that while the number of human rabies cases decreased year by year, the number of districts reporting cases did not show significant change. The situations in Guangdong, Guangxi, Guizhou and Hunan provinces clearly improved over the period but they remain provinces with high-incidence, and consequently influence the epidemic situation of surrounding provinces and possibly the whole country. Summer and autumn were high-incidence seasons. Farmers, students and pre-school children represent the high-risk populations, and rates of cases in farmers increased, those for students decreased, and pre-school children remained unchanged. Provinces with active surveillance programs reported a total of 2346 individual cases, of which 88.53% were associated with canines. Postexposure prophylaxis (PEP) of rabies cases was not significantly improved, whereas PEP in post-exposure population was good. In rural regions of China, canine density was reduced somewhat, and the immunization rate increased slightly. Finally we show that while the epidemic decreased 2007 to 2011 in China, cases continued to be diffused in certain regions. Lack of standardization of PEP on rabies cases was the main reason of morbidity. The high density and low immunization of dog in rural areas and the defective situation of PEP are still continuous occurrences in China and remain a cause for concern. | Cui-ping Yin Hang Zhou Hui Wu Xiao-yan Tao Simon Rayner Shu-mei Wang Qing Tang Guo-dong Liang | 2012 | Virologica Sinica2012，27，2： | 22 |
| 2 | Selective Ferroptosis Inhibitor Liproxstatin-1 Attenuates Neurological Deficits and Neuroinflammation After Subarachnoid Hemorrhage显示文摘Ferroptosis is a form of iron-dependent regulated cell death.Evidence of its existence and the effects of its inhibitors on subarachnoid hemorrhage(SAH)is still lacking.In the present study,we found that liproxstatin-1 protected HT22 cells against hemin-induced injury by protecting mitochondrial functions and ameliorating lipid peroxidation.In in vivo experiments,we demonstrated the presence of characteristic shrunken mitochondria in ipsilateral cortical neurons after SAH.Moreover,liproxstatin-1 attenuated the neurological deficits and brain edema,reduced neuronal cell death,and restored the redox equilibrium after SAH.The inhibition of ferroptosis by liproxstatin-1 was associated with the preservation of glutathione peroxidase 4 and the downregulation of acylCoA synthetase long-chain family member 4 as well as cyclooxygenase 2.In addition,liproxstatin-1 decreased the activation of microglia and the release of IL-6,IL-1 b,and TNF-a.These data enhance our understanding of cell death after SAH and shed light on future preclinical studies. | Yang Cao Yin Li Chao He Feng Yan Jian-Ru Li Hang-Zhe Xu Jian-Feng Zhuang Hang Zhou Yu-Cong Peng Xiong-Jie Fu Xiao-Yang Lu Yuan Yao Yu-Yu Wei Yun Tong Yi-Fu Zhou Lin Wang | 2021 | Neuroscience Bulletin2021，37，4： | 16 |
| 3 | Inhibition of autophagy significantly enhances combination therapy with sorafenib and HDAC inhibitors for human hepatoma cells显示文摘AIM:To clarify whether histone deacetylase inhibitors histone deacetylase inhibitors(HDACIs)can sensitize hepatocellular carcinoma(HCC)cells to sorafenib treatment.METHODS:Bax,Bcl-2,ATG5-ATG12,p21,and p27protein levels in Hep3B,HepG2,and PLC/PRF/5 cells were examined by Western blot.CCK8 and a fluorometric caspase-3 assay were used to examine cellular viability and apoptosis levels.The effect of Beclin-1 on sensitization of HCC cells to sorafenib was examined by transfecting Beclin-1 siRNA into Hep3B,HepG2,and PLC/PRF/5 cells.RESULTS:Autophagy inhibition enhances the inhibitory effects of vorinostat and sorafenib alone or in combination on HCC cell growth.Vorinostat and sorafenib synergistically induced apoptosis and cell cycle alterations.Western blot data indicated that HDACIs and Beclin-1 knockdown increased the p53 acetylation level.The knockdown of Beclin-1 enhanced the synergistic effect of the combination of vorinostat with sorafenib.CONCLUSION:HDACIs can sensitize HCC cells to sorafenib treatment by regulating the acetylation level of Beclin-1. | Hang Yuan Ai-Jun Li Sen-Lin Ma Long-Jiu Cui Bin Wu Lei Yin Meng-Chao Wu | 2014 | World Journal of Gastroenterology2014，20，17： | 15 |
| 4 | Power Grid Islands Service Restoration Based on Cloud Computing显示文摘提出了一种基于云计算思想的电网恢复重构方法,利用网络中大量的分布式计算资源加速求取孤岛间网络恢复重构的最优解。利用电力系统分层分布式体系结构将含有多个微网的复杂配电网络视为不同的子云计算区,每个子云计算区根据自身情况将重构的服务请求分解为多个可独立处理的计算块并提交分布的计算节点进行并行处理和结果取优。相关联子云计算区之间可通信以协调不同区域间的负荷转供,最终实现故障恢复重构的目标。算例分析结果验证了该方法的有效性。 | ZHANG Hao HE Jinghan YIN Hang BO Zhiqian B Kirby | 2011 | 中国电机工程学报2011，31，34： | 14 |
| 5 | Hierarchical Dragonfly Wing: Microstructure-Biomechanical Behavior Relations显示文摘 | Yinglong Chen Xishu Wang Huaihui Ren Hang Yin Su Jia | 2012 | Journal of Bionic Engineering2012，9，2： | 13 |
| 6 | Effects of different mixing ratios on emissions from passenger cars fueled with methanol/gasoline blends显示文摘Regulated and unregulated emissions from four passenger cars fueled with methanol/gasoline blends at different mixing ratios (M15,M20,M30,M50,M85 and M100) were tested over the New European Driving Cycle (NEDC).Volatile organic compounds (VOCs) were sampled by Tenax TA and analyzed by thermal desorption-gas chromatograph/mass spectrometer (TD-GC/MS).Carbonyls were trapped on dinitrophenylhydrazine (DNPH) cartridges and analyzed by high performance liquid chromatography (HPLC).The results showed that total emissions of VOCs and BTEX (benzene,toluene,ethylbenzene,p,m,o-xylene) from all vehicles fueled with methanol/gasoline blends were lower than those from vehicles fueled with only gasoline.Compared to the baseline,the use of M85 decreased BTEX emissions by 97.4%,while the use of M15 decreased it by 19.7%.At low-to-middle mixing ratios (M15,M20,M30 and M50),formaldehyde emissions showed a slight increase while those of high mixing ratios (M85 and M100) were three times compared with the baseline gasoline only.When the vehicles were retrofitted with new three-way catalytic converters (TWC),emissions of carbon monoxide (CO),total hydrocarbon (THC),and nitrogen oxides (NOx) were decreased by 24%-50%,10%-35%,and 24%-58% respectively,compared with the cars using the original equipment manufacture (OEM) TWC.Using the new TWC,emissions of formaldehyde and BTEX were decreased,while those of other carbonyl increased.It is necessary that vehicles fueled with methanol/gasoline blends be retrofitted with a new TWC.In addition,the specific reactivity of emissions of vehicles fueled with M15 and retrofitted with the new TWC was reduced from 4.51 to 4.08 compared to the baseline vehicle.This indicates that the use of methanol/gasoline blend at a low mixing ratio may have lower effect on environment than gasoline. | Hong Zhao Yunshan Ge Jianwei Tan Hang Yin Jiadong Guo Wei Zhao Peipei Dai | 2011 | Journal of Environmental Sciences2011，23，11： | 12 |
| 7 | Attitudes toward organ donation in China显示文摘背景机关移植代表重要进展在里面现代医药科学,和它与机关失败有益于许多病人;然而,机关来源的严重缺乏是限制了这研究的这个技术罐头 bring.The 目的是在中国人民向我们设计了的机关 donation.Methods 的了解和态度上显示出调查的结果的好处的一个瓶颈关于机关捐赠由 20 个短问题组成的一张问询表,它对这些问题的 10 groups.Most 分布式是有多项选择的;与人到机关捐赠和机关 donation.The 调查的发展的态度有关的核心问题在北京 Chao-Yang 医院,一个商业区域,和四职业 colleges.Participants 的门诊病人大厅被保持随机关于性被选择,并且回答问题,年龄,教育背景,职业,并且总共学习 major.Results , 2930 有效回答是 received.Male:female 比率是将近 1:1.2 (意味着年龄 38 年) 90.0 个参加者关于机关 transp 知道了的 .Over 超过 95.0 关于他们有的机关捐赠,而是时间知道了 varied.Nearly 知道它 90.0 个参加者同意了死亡机关捐赠; 73.0 显示他们想捐赠他们的机关帖子 mortem.Participants 对机关失败和机关移植知道了更多的人,是更可能的支持机关 donation.College 学生,当他们获得职业知识,关于机关捐赠是很积极的他们的态度可以 change.Altogether , 65.3 个参加者同意了生活机关捐赠,它显然是比为死亡机关捐赠( P 0.05 )的数字低的 .In 所有, 85.7 | WANG Wei TIAN Hui YIN Hang LIU Hang ZHANG Xiao-dong | 2012 | Chinese Medical Journal2012，，1： | 12 |
| 8 | Effects of Shenfu Injection(参附注射液)on Cerebral Metabolism in A Porcine Model of Cardiac Arrest显示文摘Objective:To investigate the effects of Shenfu Injection(参附注射液,SFI) on cerebral metabolism in a porcine model of cardiac arrest(CA).Methods:Thirty Wuzhishan minipigs were randomly assigned to the control group(n=6),epinephrine group(EP group,n=12) and SFI group(n=12).After8 min of untreated ventricular fibrillation(VF),pigs in the EP group or SFI group were administered with either EP(0.02 mg/kg) or SFI(1.0 mL/kg),respectively.After successful resuscitation,cerebrospinal fluid(CSF) levels of glucose,pyruvate,lactate,glutamate and glycerol were measured at 1,6,12 and 24 h after recover from spontaneous circulation(ROSC).In addition,neurologic deficit score(NDS) was calculated at 24 h after ROSC.Surviving pigs were killed at 24 h after ROSC,and the brain tissue was obtained for ultra-microstructure examination.Results:Compared with the EP group,CSF glucose and pyruvate levels were higher(all P<0.01),and lactate levels were lower in the SFI group(P<0.01).Meanwhile,CSF glutamate and glycerol levels in the SFI group were lower in comparison to the EP group(all P<0.05).In addition,SFI decreased NDS at 24 h after ROSC(P<0.01),and alleviated the histopathological damage of the brain.Conclusions:SFI could alleviate brain injury after CA,which may be associated with improving cerebral metabolism. | YIN Qin WU Cai-jun YANG Jun HANG Chen-chen LI Chun-sheng | 2017 | Chinese Journal of Integrative Medicine2017，23，1： | 11 |
| 9 | Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects显示文摘The natural environment provides material essentials for human survival and development. The characteristics,processes, regional differentiation and forcing mechanisms of the elements of the natural environment(e.g. geomorphology,climate, hydrology, soil, etc.) are the main objects of research in physical geography. China has a complex natural environment and huge regional differentiation and therefore it provides outstanding reserach opportunities in physical geography. This review summarizes the most important developments and the main contributions of research in the physical geography and human living environment in China during the past 70 years. The major topics addressed are the uplift of the Tibetan Plateau and the evolution of its cryosphere, the development of fluvial systems, the acidification of the vast arid region of the Asian interior, variations in the monsoon and westerly climate systems on multiple timescales, the development of lakes and wetlands, the watershed system model, soil erosion, past human-environment interactions, biogeography, and physical geographic zonality. After briefly introducing international research developments, we review the history of research in physical geography in China, focusing on the major achievements and major academic debates, and finally we summarize the status of current research and the future prospects. We propose that in the context of the national demand for the construction of an ecological civilization, we should make full use of the research findings of physical geography, and determine the patterns and mechanisms of natural environmental processes in order to continue to promote the continued contribution of physical geography to national development strategies, and to further contribute to the theory of physical geography from a global perspective. | Fahu CHEN Bojie FU Jun XIA Duo WU Shaohong WU Yili ZHANG Hang SUN Yu LIU Xiaomin FANG Boqiang QIN Xin LI Tingjun ZHANG Baoyuan LIU Zhibao DONG Shugui HOU Lide TIAN Baiqing XU Guanghui DONG Jingyun ZHENG Wei YANG Xin WANG Zaijun LI Fei Wang Zhenbo HU Jie WANG Jianbao LIU Jianhui CHEN Wei HUANG Juzhi HOU Qiufang CAI Hao LONG Ming JIANG Yaxian HU Xiaoming FENG Xingguo MO Xiaoyan YANG Dongju ZHANG Xiuhong WANG Yunhe YIN Xiaochen LIU | 2019 | Science China Earth Sciences2019，62，11： | 11 |
| 10 | Protein A immunoadsorption combined with rituximab in highly sensitized kidney transplant recipients显示文摘背景高度敏化的病人的数字正在升起,并且促进感受性能导致肾移植学习试图调查 immunoadsorption 在肾 transplants.Methods 的高度敏化的接受者与 rituximab ( RTX )相结合的蛋白质的安全和功效的在场的 failure.The 七个高度敏化的接受者生活相关肾移植( 4 个男人和 3 个女人, 42.5 岁(范围 33-51 )的平均数)是有这联合的 pretreated 。人的白血球抗原(HLA ) 失配数字是 2-5。班 1 的面板反应抗体(PRA ) 在 2 种情况中高,班的在 1 种情况中高。所有病人是有 immunoadsorption 2-10 时间的 pretreated。免疫球蛋白和 PRA 变化在吸收前后被监视。当 PRA 或免疫球蛋白层次在或下面正常的 levels.Immunosuppressive 药是如果在操作前的 3-5 天,和 RTX (375 mg/m^2 ) 的一剂量在操作的日子与 polyclonal 抗体被灌输时,操作被进行。手术后的 creatinine (Cr ) , creatinine 清理率(Ccr ) , PRA 比率,和免疫球蛋白变化都是 monitored.Results 没有推迟的接枝功能, 7 个病人有好恢复。尖锐拒绝在手术后的天发生在 3 种情况中 8, 10,和 14 分别地。Banff 07 活体检视等级是在 1 种情况中的 la,在 2 cases.Successful 回复的 lla C4d0 在给 methylprednisolone 或 antithymocyte 免疫球蛋白 + cyclophosphamide 以后被完成。所有病人与正常肾的功能被解除,意味着班 1 PRA 是 14% ,吝啬的类 PRA 是 35% 。PRA 在与 RTX 相结合的 immunoadsorption 能安全地减少的 3 cases.Conclusion 蛋白质是完全否定的体液的拒绝在的出现高度敏化肾移植接受者。 | YIN Hang HU Xiao-peng LI Xiao-bei LIU Hang WANG Wei REN Liang WANG Yong ZHANG Xiao-dong | 2009 | Chinese Medical Journal2009，，22： | 9 |
| 11 | Clinical application of serial operations with preserving spleen显示文摘AIM: To evaluate the clinical application of serial operations with preservation of spleen.METHODS: Serial operations with preserving spleen were performed on 211 cases in our hospital from 1980 to 2000.The patient's age ranged from 13 to 56 years, averaging 3years. Diseases included splenic injury in 171 cases, portal hypertension in 9 cases, splenic cyst in 10 cases, and the lesion of pancreatic body and tail in 21 cases.RESULTS: All the cases were cured, and 129 patients were followedup from 3 months to 3 years with the leukocyte phagocytosis test, detection of immunoglubin, CT, 99mTc scanning and ultrasonogrsphy. The results were satisfactory.CONCLUSION: The operations with preserving spleen were safe, feasible, and worth of clinical application. | Hong-Chi Jiang~1 Bei Sun~1 Hai-Quan Qiao~1 Jun Xu~1 Da-Xun Piao~1 Hang Yin~2 1 Department of General Surgery,First Clinical Hospital,Harbin Medical University,Harbin 150001,China2 Department of General Surgery,Heilongjiang Provincial Hospital,Harbin 150001,China | 2001 | World Journal of Gastroenterology2001，7，6： | 8 |
| 12 | Impending HRT wave precursors to the Wenchuan M_s8.0 earthquake and methods of earthquake impending prediction by using HRT wave显示文摘We deployed four geo-electric monitoring stations in Sichuan and Yunnan provinces from 2004, using the new generation of equipment (PS-100) and technologies to capture the HRT wave earthquake precursor. Before the Wenchuan Ms8.0 earthquake, we recorded the HRT wave precursor at the only operating station in Hongge (HG, Δ=465 km) and found that significant impending signal had been recorded at the station in the early morning ( 0―5 am) of 12th of May, 2008. The precursor for this earthquake is consistent with precursors recorded for other strong earthquakes. The measured physical properties (geo-resistivity and telluric-current) show tidal wave period oscillations from several days to several months before the earthquakes and the amplitude of such HT oscillation increases significantly towards the occurrence of an earthquake. These HT and RT waves from the epicenter have a causal relationship with the earthquakes that happened several days later. The arrival time of two RT waves is proportional to the distance from the station to the epicenter. The estimated natural decay of the amplitude is correlated with the natural period (T0) of the earthquake fault, which is proportional to the fault length. From this relationship, we can predict the earthquake magnitude. For magnitude 6―9 earthquakes, the natural period is about 1―6 hours. Such oscillation comes from the epicenter area and they can propagate several thousand kilometers in the Earth's crust. Before a strong earthquake in the shallow crust, the conductive pore fluid will experience major changes before the fault rapture. Such fluid change will emit an oscillation in the pore fluid pressure. This is the mechanism for the HRT wave generation. Since the China Earthquake Administration funded the HRT wave short-term earth-quake prediction project in 2003, the first record of HRT precursor wave has been recorded from the 2004-12-26 Sumatra Mw9.0 earthquake with the largest epicentre distance Δ=2900 km. Thereafter, we have captured HRT waves from more than twenty strong earthquakes, which are well-matched and show repeatability, consistency and regularity. All our observation with the HRT waves demonstrate that HRT wave precursors to earthquakes indeed exist. Strong earthquakes can be predicted and short-term and impending earthquake prediction is achievable in the very near future. From all the observations, including the ones at HG station from Wenchuan Ms8.0 earthquake, we conclude that using HRT wave to predict earthquakes is feasible. | QIAN FuYe ZHAO BiRu QIAN Wei ZHAO Jian HE ShiGen ZHANG HongKui LI ShiYu LI ShaoKun YAN GuLiang WANG ChengMin SUN ZhenKai ZHANG DongNing LU Jun ZHANG Ping YANG GuoJun SUN JiaLin GUO ChunSheng TANG YuXiong XU JianMing XIA KunTao JU Hang YIN BangHong LI Ming YANG DongSheng QI WeiLuo HE TaiMing GUAN HuaPing ZHAO YuLin | 2009 | Science China Earth Sciences2009，52，10： | 8 |
| 13 | Aspergillus pneumonia in renal transplant recipients显示文摘背景细丝状的真菌的感染在学习试图调查曲霉属菌肺病在的在场的稳固的机关 transplants.The 与高病态和死亡被联系肾象 treatment.Methods 一样移植接受者,和它的诊断约 2000 个案例肾移植回顾地被学习,我们集中了于在8月1日期间就医的案例, 2005 并且2007年2月1日,学习时期。临床的数据库和电子记录被分析。最近出版的文学是在那里的 reviewed.Results 比在非感染的组在感染的组是更多的糖尿病和高血压(86% 对 62% 和 57% 对 39% ,分别地) 。从感染的组的百分之 86 个接受者推迟了接枝功能。有曲霉属菌肺病的七个案例基于真菌的文化或辐射学被识别。7 个案例, 4 在诊断以后在一些天内死了。Liposomal amphotericin B 被用作真菌的感染的发生正在增加在之中的首要的 therapy.Conclusions 肾移植接受者。早诊断和治疗是在治好麴菌病的关键步。 | ZHANG Xiao-dong HU Xiao-peng YIN Hang WANG Wei ZHANG Xin MA Lin-lin WANG Yong | 2008 | Chinese Medical Journal2008，，9： | 8 |
| 14 | Pharmacokinetics of enteric-coated mycophenolate sodium in Chinese renal transplantation recipients显示文摘 | QIU Kui TIAN Hui WANG Wei HU Xiao-peng LI Xiao-bei GONG Li-li LUO Wei LIU Li-hong ZHANG Xiao-dong YIN Hang | 2012 | Chinese Medical Journal2012，，23： | 8 |
| 15 | Effects of Bailing capsules for renal transplant recipients: a retrospective clinical study显示文摘 | WANG Wei ZHANG Xi-nuo YIN Hang LI Xiao-bei HU Xiao-peng LIU Hang WANG Yong ZHANG Xiao-dong | 2013 | Chinese Medical Journal2013，，10： | 8 |
| 16 | Factors affecting the long-term renal allograft survival显示文摘在过去的十年的背景, cadaveric 的一个年接枝幸存肾的 allografts 显著地被改进了,但是他们的长期的幸存没保留步。在一年以后幸存的肾的 allografts 的摩擦率仍然保持几乎未改变。为迟了的接枝损失的原因是多重的。这研究的目的是分析在我们回顾地分析了的肾 transplantation.Methods 以后影响接枝的长期的幸存的预兆的因素在我们在1991年1月和2000年1月之间的医院里被对待的 524 个肾移植病人,包括生活了的 254 个病人有正常接枝功能(长幸存组)的超过 10 年,和其肾的接枝不到 10 年(控制组)幸存的 270 个盒子。明确地,我们分析了可以潜在地由 univariate 和逻辑模型 multivariate 分析影响接枝幸存指出分析显示出的独立风险 factors.Results Univariate 的 10 个因素没有重要差别在接受者的年龄或性存在,分离时间, lymphotoxin 层次,或在二之间的冷局部缺血时间组织。然而,推迟的接枝功能的比率和尖锐拒绝,和在长幸存的病人的尿酸层次组织是比在控制组(P 0.01 ) 的那些显著地低的。而且,我们发现在在移植和为在长幸存组以内的病人的施主接受者的 histocompatibility 抗原匹配以后的一年的 cyclosporin A 的集中比在控制组(P 0.01 ) 的那些显著地高。而且, multivariate 分析证明这四个因素是影响推迟的接枝功能和尖锐拒绝,在在移植以后的一年的 cyclosporin A 的集中,和尿酸铺平的浆液的比率是的耐心的 survival.Conclusions 的独立风险因素影响肾的接枝的长期的幸存的很重要的因素。 | WANG Wei LI Xiao-bei YIN Hang YANG Xiao-yong LIU Hang REN Liang HU Xiao-peng WANG Yong ZHANG Xiao-dong | 2011 | Chinese Medical Journal2011，，8： | 7 |
| 17 | Multidetector row-CT in evaluation of living renal donors显示文摘背景Multidetector排 CT ( MDCT )在大多数中心一直在演变到潜在的生活施主的标准评估方法,并且能为选择候选人并且决定学习试图在生活肾施主的解剖的评估估计 MDCT 的价值并且在 104 个潜在的施主经历了的中国 population.Methods 揭示肾的脉管的变化的流行的外科的 technique.This 提供优秀细节 MDCT 和数据集合是processed以后为施主肾切除术在组成参考的标准的外科期间与调查结果在 MDCT 评估以后在 97 个候选人上被执行。产生 MDCT 图象与在外科期间发现的实际解剖相比。结果 MDCT 图象精确地显示了主要肾的动脉和静脉以及上面的输尿管的解剖结构,除了在有马蹄铁的一种情况中肾。在图象揭示的附件动脉的流行是 27.2%(28/103 ) 并且早分叉在 12.6% 被发现(13/103 ) 。与调查结果相比在外科期间,在 MDCT 图象的附件动脉的察觉是 85.7%(6/7 ) ,并且更大的附件动脉的察觉(> 在直径的 1.5 公里) 是 100% 。早分叉的察觉是 .Conclusion MDCT 精确地帮助评估因此便于计划外科的潜在的施主的肾的解剖的 100% 。 | ZHANG Ji-qing HU Xiao-peng WANG Wei LI Xiao-bei YIN Hang ZHANG Xiao-dong | 2010 | Chinese Medical Journal2010，，9： | 6 |
| 18 | Prevention of surgical site infection under different ventilation systems in operating room environment显示文摘Biological particles in the operating room(OR)air environment can cause surgical site infections(SSIs).Various ventilation systems have been employed in ORs to ensure an ultraclean environment.However,the effect of different ventilation systems on the control of bacteria-carrying particles(BCPs)released from the surgical staff during surgery is unclear.In this study,the performance of four different ventilation systems(vertical laminar airflow ventilation(VLAF),horizontal laminar airflow ventilation(HLAP),differential vertical airflow ventilation(DVAF),and temperature-controlled airflow ventilation(TAF))used in an OR was evaluated and compared based on the spatial BCP concentration.The airflow field in the OR was solved by the Renormalization Group(RNG)k-e turbulence model,and the BCP phase was calculated by Lagrangian particle tracking(LPT)and the discrete random walk(DRW)model.It was found that the TAF system was the most effective ventilation system among the four ventilation systems for ensuring air cleanliness in the operating area.This study also indicated that air cleanliness in the operating area depended not only on the airflow rate of the ventilation system but also on the airflow distribution,which was greatly affected by obstacles such as surgical lamps and surgical staff. | Zhijian Liu Haiyang Liu Hang Yin Rui Rong Guoqing Cao Qihong Deng | 2021 | Frontiers of Environmental Science & Engineering2021，15，3： | 5 |
| 19 | The Characteristics of Atmospheric Ice Nuclei Measured at Different Altitudes in the Huangshan Mountains in Southeast China显示文摘The concentration of ice nuclei(IN) and the relationship with aerosol particles were measured and analyzed using three 5-L mixing cloud chambers and a static diffusion cloud chamber at three altitudes in the Huangshan Mountains in Southeast China from May to September 2011. The results showed that the mean total number concentration of IN on the highest peak of the Huangshan Mountains at an activation temperature(Ta) of-20℃C was 16.6 L-1. When the supersaturation with respect to water(Sw) and with respect to ice(Si) were set to 5%, the average number concentrations of IN measured at an activation temperature of-20℃C by the static diffusion cloud chamber were 0.89 and 0.105 L-1, respectively. A comparison of the concentrations of IN at three different altitudes showed that the concentration of IN at the foot of the mountains was higher than at the peak. A further calculation of the correlation between IN and the concentrations of aerosol particles of different size ranges showed that the IN concentration was well correlated with the concentration of aerosol particles in the size range of 1.2–20 μm. It was also found that the IN concentration varied with meteorological conditions, such as wind speed, with higher IN concentrations often observed on days with strong wind. An analysis of the backward trajectories of air masses showed that low IN concentrations were often related to air masses travelling along southwest pathways, while higher IN concentrations were usually related to those transported along northeast pathways. | JIANG Hui YIN Yan YANG Lei YANG Shaozhong SU Hang CHEN Kui | 2014 | Advances in Atmospheric Sciences2014，31，2： | 5 |
| 20 | Power flow calculation for a distribution system with multi-port PETs:an improved AC-DC decoupling iterative method显示文摘Recently,power electronic transformers(PETs)have received widespread attention owing to their flexible networking,diverse operating modes,and abundant control objects.In this study,we established a steady-state model of PETs and applied it to the power flow calculation of AC-DC hybrid systems with PETs,considering the topology,power balance,loss,and control characteristics of multi-port PETs.To address new problems caused by the introduction of the PET port and control equations to the power flow calculation,this study proposes an iterative method of AC-DC mixed power flow decoupling based on step optimization,which can achieve AC-DC decoupling and effectively improve convergence.The results show that the proposed algorithm improves the iterative method and overcomes the overcorrection and initial value sensitivity problems of conventional iterative algorithms. | Hang Yin Qiang Li Youbo Liu Xianglong Liu Yue Xiang Junyong Liu | 2020 | Global Energy Interconnection2020，3，4： | 5 |
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