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| 1 | Cold adaptation in pigs depends on UCP3 in beige adipocytes显示文摘 | Jun Lin Chunwei Cao Cong Tao Rongcai Ye Meng Dong Qiantao Zheng Chao Wang Xiaoxiao Jiang Guosong Qin Changguo Yan Kui Li John R. Speakman Yanfang Wang Wanzhu Jin Jianguo Zhao | 2017 | Journal of Molecular Cell Biology2017，9，5： | 20 |
| 2 | One-step base editing in multiple genes by direct embryo injection for pig trait improvement显示文摘The precise and simultaneous acquisition of multiple beneficial alleles in the genome is in great demand for the development of elite pig breeders. Cytidine base editors(CBEs) that convert C:G to T:A have emerged as powerful tools for single-nucleotide replacement. Whether CBEs can effectively mediate C-to-T substitution at multiple sites/loci for trait improvement by direct zygote injection has not been verified in large animals. Here, we determined the editing efficiency of four CBE variants in porcine embryonic fibroblast cells and embryos. The findings showed that hA3A-BE3-Y130F and hA3A-eBE-Y130F consistently resulted in increased base-editing efficiency and low toxic effects in embryonic development. Further, we verified that using a one-step approach, direct zygote microinjection of the CBE system can generate pigs harboring multiple point mutations.Our process resulted in a stop codon in CD163 and myostatin(MSTN) and introduced a beneficial allele in insulin-like growth factor-2(IGF2). The pigs showed disrupted expression of CD163 and MSTN and increased expression of IGF2, which significantly improved growth performance and infectious disease resistance. Our approach allows immediate introduction of multiple mutations in transgene-free animals to comprehensively improve economic traits through direct embryo microinjection,providing a potential new route to produce elite pig breeders. | Ruigao Song Yu Wang Qiantao Zheng Jing Yao Chunwei Cao Yanfang Wang Jianguo Zhao | 2022 | Science China(Life Sciences)2022，65，4： | 9 |
| 3 | Clinical,Laboratory and Imaging Features of High Altitude Pulmonary Edema in Tibetan Plateau显示文摘Objective To analyze characteristics of high altitude pulmonary edema(HAPE)in Chinese patients.Methods We performed a retrospective study of 98 patients with HAPE.We reviewed the medical records and summarized the clinical,laboratory and imaging characteristics of these cases,and compared the results on admission with those determined before discharge.Results Forty-eight(49.0%)patients developed HAPE at the altitude of 2800 m to 3000 m.Ninty-five(96.9%)patients were man.Moist rales were audible from the both lungs,and moist rales over the right lung were clearer than those over the left lung in fourteen patients.The white blood cells[(12.83±5.55)versus(8.95±3.23)×109/L,P=0.001)]as well as neutrophil counts[(11.34±3.81)versus(7.49±2.83)×109/L,P=0.001)]were higher,whereas the counts of other subsets of white blood cells were lower on admission than those after recovery(all P<0.05).Serum levels of alkaline phosphatase(115.8±37.6 versus 85.7±32.4 mmol/L,P=0.020),cholinesterase(7226.2±1631.8 versus 6285.3±1693.3 mmol/L,P=0.040),creatinine(85.2±17.1 versus 75.1±12.8 mmol/L,P=0.021),uric acid(401.9±114.2 versus 326.0±154.3 mmol/L,P=0.041),and uric glucose(7.20±1.10 versus 5.51±1.11 mmol/L,P=0.001)were higher,but carbondioxide combining power(CO2CP,26.7±4.4 versus 28.9±4.5 mmol/L,P=0.042)and serous calcium(2.32±0.13 versus 2.41±0.10 mmol/L,P=0.006)were lower on admission.Arterial blood gas results showed hypoxemia and respiratory alkalosis on admission.Conclusions In the present research,men were more susceptible to HAPE than women,and in the process of HAPE,the lesions of the right lung were more serious than those of the left lung.Some indicators of routine blood test and blood biochemistry of HAPE patients changed. | Zongbin Li Hongyan Chen Jiayue Li Gaoyuan Li Chunwei Liu Yundai Chen | 2018 | Chinese Medical Sciences Journal2018，33，3： | 9 |
| 4 | Early Warning of Acute Altitude Sickness by Physiological Variables and Noninvasive Cardiovascular Indicators显示文摘Objective To examine if the variations at sea level would be able to predict subsequent susceptibility to acute altitude sickness in subjects upon a rapid ascent to high altitude.Methods One hundred and six Han nationality male individuals were recruited to this research.Dynamic electrocardiogram,treadmill exercise test,echocardiography,routine blood examination and biochemical analysis were performed when subjects at sea level and entering the plateau respectively.Then multiple regression analysis was performed to construct a multiple linear regression equation using the Lake Louise Score as dependent variable to predict the risk factors at sea level related to acute mountain sickness(AMS).Results Approximately 49.05%of the individuals developed AMS.The tricuspid annular plane systolic excursion(22.0+2.66 vs.23.2+3.19 mm,t=l.998,P=0.048)was significantly lower in the AMS group at sea level,while count of eosinophil[(0.264+0.393)×109/L vs.(0.126+0.084)×109/L,t=-2.040,P—0.045],percentage of diflerences exceeding 50 ms between adjacent normal number of intervals(PNN50,9.66%±5.40%vs.6.98%±5.66%,t=-2.229,P=0.028)and heart rate variability triangle index(57.1+16.1 vs.50.6+12.7,t=-2.271,P=0.025)were significantly higher.After acute exposure to high altitude,C-reactive protein(0.098+0.103 vs.0.062+0.045 g/L,t=-2.132,P=0.037),aspartate aminotransferase(19.7+6.7275.17,3±3.95 U/L,t=-2.231,P=0.028)and creatinine(85.1±12.9 vs.77.7±11.2 mmol/L,t=3.162,P=0.002)were significantly higher in the AMS group,while alkaline phosphatase(71.7+18.2 vs.80.6+20.2 U/L,t=2.389,P=0.019),standard deviation of normal-to-normal RR intervals(126.5+35.9 vs.143.3+36.4 ms,t—2.320,P—0.022),ejection time(276.9+50.8 vs.313.8+48.9 ms,t—3.641,P—0.001)and heart rate variability triangle index(37.1+12.9 vs.41.9+11.1,t=2.O2O,P=0.047)were significantly lower.Using the Lake Louise Score as the dependent variable,prediction equation were established to estimate AMS:Lake Louise Score=3.783+0.281Xeosinophil-0.219Xalkaline phosphatase+O.O32XPNN50.Conclusions We elucidated the differences of pl^siological variables as well as noninvasive cardiovascular indicators for subjects after high altitude exposure compared with those at sea level.We also created an acute high altitude reaction early warning equation based on the physiological variables and noninvasive cardiovascular indicators at sea level. | Zongbin Li Chunwei Liu Jun Guo Yajun Shi Yang Li Jinli Wang Jing Wang Yundai Chen | 2020 | Chinese Medical Sciences Journal2020，35，1： | 8 |
| 5 | Photocatalytic degradation of trace-level of Microcystin-LR by nano-film of titanium dioxide显示文摘Microcystins, a group of hepatotoxin produced by cyanobacteria in eutrophic freshwater, have proven unreliable to be removed by conven-tional treatments. In this study, the photocatalytic degradation experiments of Microcystin-LR were conducted using nano-TiO2 thin film, prepared by sol- gel and dip-coating method, with low UVA intensity irradiation. Analysis results from SPE (solid-phase extraction) combined with HPLC method showed that Microcystin-LR whose initial concentration (μg/L) around that occurs naturally was easily to be re-moved by photocatalytic system. The degradation efficiency of toxin was influenced by the pH condi-tions, initial concentration and UV intensity. The maximum initial rate of photocatalytic degradation occurred at pH 4 and over 95% of 20 μg/L Micro-cystin-LR was decomposed within 120 min under 400μW/cm2 UV illumination. The kinetic equations and parameters revealed that degradation reaction of trace level MC-LR, which was depicted by Langmuir- Hinshelwood kinetics model, was in accordance with pseudo first order kinetics process in appearance well. Under the condition of pH=6.7, irradiation inten-sity=400 μW/cm2 and initial concentration=20 μg/L, the corresponding pseudo-first-order rate constant k and half-life were determined to be 0.0157 min?1 and 44 min, respectively. During the range of 200―1000 μW/cm2, the degradation rate increases with incident intensity to the 0.82 power and the corresponding apparent quantum yield (Φapp) was found to be 5.19× 10-8 g/J approximately. | FENG Xiaogang RONG Fei FU Degang YUAN Chunwei HU Yan | 2006 | Chinese Science Bulletin2006，51，10： | 8 |
| 6 | A single TiO_(2)-coated side-glowing optical fiber for photocatalytic wastewater treatment显示文摘By means of TiO2-layer-on-SiO2-layer, anatase TiO2 was deposited on novel side- glowing optical fibers, which can provide side UV radiation along the whole fiber length. FE-SEM images show that the double layers adhered well to the side-glowing optical fiber, and the TiO2 coating was homogeneous and smooth. The decomposition reaction of reactive brilliant red dye X-3B on a single TiO2-coated side-glowing optical fiber indicated that the side-scattering UV light intensity was strong enough for photocatalytic oxi-dation reaction. Therefore, TiO2-coated side-glowing optical fibers open up a new way to use the optical fiber reactor in photocatalytic wastewater treatment. | HU Yan XU Jingjing YUAN Chunwei LIN Jian YIN Zhidong | 2005 | Chinese Science Bulletin2005，50，18： | 7 |
| 7 | A PSO based Energy Efficient Coverage Control Algorithm for Wireless Sensor Networks显示文摘Wireless Sensor Networks(WSNs)are large-scale and high-density networks that typically have coverage area overlap.In addition,a random deployment of sensor nodes cannot fully guarantee coverage of the sensing area,which leads to coverage holes in WSNs.Thus,coverage control plays an important role in WSNs.To alleviate unnecessary energy wastage and improve network performance,we consider both energy efficiency and coverage rate for WSNs.In this paper,we present a novel coverage control algorithm based on Particle Swarm Optimization(PSO).Firstly,the sensor nodes are randomly deployed in a target area and remain static after deployment.Then,the whole network is partitioned into grids,and we calculate each grid’s coverage rate and energy consumption.Finally,each sensor nodes’sensing radius is adjusted according to the coverage rate and energy consumption of each grid.Simulation results show that our algorithm can effectively improve coverage rate and reduce energy consumption. | Jin Wang Chunwei Ju Yu Gao Arun Kumar Sangaiah Gwang-jun Kim | 2018 | Computers, Materials & Continua2018，，9： | 6 |
| 8 | Validity and reliability of Chinese version of Fatigue Impact Scale in cerebral infarction patients显示文摘BACKGROUND: Post-stroke fatigue has received much attention recently. Three evaluation scales are available,including the Fatigue Impact Scale (FIS). Yet none of these has been proven to be of use in the evaluation of psychological quality after post-stroke fatigue. OBJECTIVE: To introduce FIS into China,and to evaluate the validity and reliability of the Chinese Version in patients with cerebral infarction. DESIGN: Scale evaluation. SETTING: Department of Rehabilitation,Beijing Friendship Hospital,Capital Medical University. PARTICIPANTS: A total of 330 patients with cerebral infarction were selected from the Department of Neurology,Beijing Friendship Hospital,Capital Medical University from June 2005 to December 2006. All patients met diagnostic standards from the Fourth National Cerebrovascular Disease Academic Meeting of China Medical Association and were diagnosed with CT or MRI examination. Patients who were not willing to accept scale evaluation were excluded. METHODS: The English version of FIS was translated into Chinese and subsequently translated back to English again. FIS was given to the discharged patients,and they returned them upon completion. In-patients completed and immediately returned the FIS. Validity and reliability of the retrieved scales were ascertained with descriptive and inference analysis. MAIN OUTCOME MEASURES: Total scores and subscale scores of FIS. RESULTS: Out of 330 questionnaires,214 valid questionnaires were deemed valid in total. Six components were extracted in factor analysis,and the total cumulative contribution was 73.919%,which suggested the questionnaire was valid. After correlation analysis,6 components were divided into 3 subscales,including cognitive,physical,and social,which was the same as the English version. The Cronbach α value for the three subscales was 0.937 7,0.918 8,and 0.940 6,respectively (> 0.7). CONCLUSION: The reliability and validity of the Chinese version of FIS met with satisfaction and ap-peared to be adaptable to cerebral infarction patients in China. | Chunwei Wu Zhandong Liu Yongbo Zhang Jimei Li Dexin Wang | 2008 | Neural Regeneration Research2008，3，2： | 6 |
| 9 | Visible Light Induced Photocatalysis of Cerium Ion Modified Titania Sol and Nanocrystallites显示文摘The cerium ion(Ce4+) doped titania sol and nanocrystallites were prepared by chemical coprecipitation-peptization and hydrothermal synthesis methods, respectively. The X-ray diffraction pattern shows that Ce4+-TiO2 xerogel powder has semicrystalline structure and thermal sintering sample has crystalline structure. Ce4+-TiO2 nanocrystallites are composed of the major anatase phase titania (88.82 wt pct) and a small amount of crystalline cerium titanate.AFM micrograph shows that primary particle size of well-dispersed ultrafine sol particles is below 15 nm in diameter.The particle sizes are 30 nm for xerogel sample and 70 nm for nanocrystallites sample, which is different from the estimated values (2.41 nm and 4.53 nm) by XRD Scherrer's formula. The difference is mainly due to aggregation of nanocrystallites. The experimental results exhibit that photocatalysts of Ce4+-TiO2 sol and nanocrystallites have the ability to photodegrade reactive brilliant red dye (X-3B) under visible light irradiation with the ion-TiO2/VIS/dye system. Moreover, Ce4+ doped titania sol has shown higher efficiency than the nanocrystallites sample in respect of potocatalytic activity. Meanwhile, dye photodegradation mechanisms are proposed to different photocatalytic reaction systems, which are dye photosensitization, ion-dye photosensitization and interband photocatalysis & dye photosensitization with respect to TiO2 nanocrystallites, Ce4+-TiO2 sol and Ce4+-TiO2 nanocrystallites system. | Yibing XIE and Chunwei YUANKey Laboratory of Molecular & Biomolecular Electronics, Southeast University, Ministry of Education, Nanjing 210096, China | 2004 | Journal of Materials Science & Technology2004，20，1： | 5 |
| 10 | FAK-targeting PROTAC as a chemical tool for the investigation of non-enzymatic FAK function in mice显示文摘Dear Editor,Animal models,most commonly mice,that lack a protein of interest play an important role in phenotypic and functional studies of a target gene,allowing researchers to answer various biological questions(Chaible et al,2010).At pre-sent,a variety of tools act at the DNA or RNA level to enable researchers to model gene function(and thus protein)deficiency,including nucleic acid based RNA interference(EI-bashir et al.,2001),antisense oligonucleotides(Schoch and Miller,2017),and genome editing-based CRISPR-Cas9(Doudna and Charpentier,2014)strategies.However,challenges remain. | Hongying Gao Chunwei Zheng Jian Du Yue Wu Yonghui Sun Chunsheng Han Kehkooi Kee Yu Rao | 2020 | Protein & Cell2020，11，7： | 5 |
| 11 | Seroprevalence of Toxoplasma gondii infection among patients with hand, foot and mouth disease in Henan, China: a hospital-based study显示文摘Background:The prevalence of infection with Toxoplasma gondii(T.gondii)in humans has been increasing in China due to the growing number of cats in the country.Hand,foot and mouth disease(HFMD)is a serious public health issue in China and still one of the leading causes of child mortality.However,little is known about the epidemiology of T.gondii infection among HFMD patients.Methods:A case–control study of 281 HFMD patients from the First People’s Hospital of Pingdingshan in Pingdingshan city,Henan province,central China,and 222 controls from Pingdingshan city was conducted.Anti-T.gondii antibodies were serologically detected using the enzyme-linked immunosorbent assay.Results:We found that the overall anti-T.gondii immunoglobulin G(IgG)antibody prevalence among HFMD patients was 12.46%,which was significantly higher than that in clinically healthy children(1.80%).The highest T.gondii seroprevalence was detected in critical cases(22.58%),followed by severe cases(11.50%),and the lowest was detected in mild cases(8.33%).Conclusion:The present study is the first survey of T.gondii seroprevalence among HFMD patients in China;12.46%were defined as seropositive.It is imperative that improved integrated measures are taken to prevent and control T.gondii infection among HFMD patients. | Shuai Wang Chunwei Lan Luwen Zhang Haizhu Zhang Zhijun Yao Dong Wang Jingbo Ma Jiarong Deng Shiguo Liu | 2015 | Infectious Diseases of Poverty2015，4，1： | 5 |
| 12 | Transformation and Functional Expression of the rFCA-RRM2 Gene in Rice显示文摘The primary aim of the present study was to investigate the overexpression of the rice (Oryza sativa L. subsp. japonica var. Zhonghua 11) flowering control gene (rFCA-RRM2) in monocotyledonous model rice. Constitutive expression of rFCA-RRM2 from the Actl-5 rice promoter caused late flowering in transgenic rice and increased grain weight that was more than 50% higher than that of control plants, which is the first demonstration of rFCA-RRM2 being able to increase rice production. Late flowering was accompanied by strong phenotype and some morphological modifications. These observations suggest that rFCA-RRM2 is a useful tool for phenotype improvement and yield enhancement in cereal crops. | KotbATRIA Ke-GuiLI ChunWEI Guang-MingHE WeiSU Jin-ShuiYANG | 2005 | Journal of Integrative Plant Biology2005，47，7： | 5 |
| 13 | A 2-bp insertion(c.6768insCC) in MC1R causes recessive white coat color in Bama miniature pigs显示文摘Coat color is an important characteristic of various breeds of domestic animal species.Variation in farm animal coat color is of considerable interest for concealment,communication and protection against solar radiation(Slominski et al.,2004).It also plays an important role in the regulation of physiological processes(Miyagi and Terai,2013).Bama miniature pigs are a native breed | Qitao Jia Chunwei Cao Hai Tang Ying Zhang Qiantao Zheng Xiao Wang Rui Zhang Xianlong Wang Ailing Luo Hong Wei Anming Meng Qi Zhou Hongmei Wang Jianguo Zhao | 2017 | Journal of Genetics and Genomics2017，44，4： | 5 |
| 14 | 宁夏年降水和季节降水的创新趋势分析显示文摘采用创新趋势分析(ITA)方法对1961年至2018年宁夏不同强度降水的时空变化进行研究。结果表明,区域年降水量增加主要是弱降水增加,而区域年降水量减少主要是强降水减少;极端降水的变化趋势明显。不同类型极端降水的贡献随季节变化。春季区域降水增加主要是强降水增加,区域降水减少主要是弱降水减少。夏季和秋季区域降水增加主要是弱降水增加,而区域降水减少是由强降水减少引起。该研究结果为水资源规划和应对干旱和洪涝灾害提供了支持。 | YANG Huiling XIAO Hui GUO Chunwei SUN Yue GAO Ruina | 2020 | Atmospheric and Oceanic Science Letters2020，13，4： | 4 |
| 15 | Changes of Extreme Precipitation and its Associated Mechanisms in Northwest China显示文摘Characterized by scarce water resources and fragile ecosystems,Northwest China(NWC)has experienced a climate shift from warm-dry to warm-wet conditions since the 1980s that has garnered extensive concern in recent years.In this study,the variability in extreme precipitation(EP)during 1961-2016 in different climate zones of NWC and the possible mechanisms for this variation are investigated.The results show that the EP trends significantly increased in most of the westerly zone(WZ)and plateau zone(PZ),while the EP trends did not significantly decrease in the monsoon zone(MZ).The start dates of extreme precipitation(SDEP)and end dates of extreme precipitation(EDEP)advanced and were postponed,respectively,in the WZ and PZ,while the opposite occurred in the MZ.Summer atmospheric circulation,water vapor transport,and atmospheric instability over NWC varied greatly with the interdecadal shift in EP before and after 1986.During 1986-2016,upper-level divergence and lower-level convergence occurred in the MZ and PZ,which strengthened ascending flow.In addition,the summer water vapor and atmospheric instability increased in the WZ and PZ.These characteristics created favorable conditions for increased occurrences of EP in the WZ and PZ in summer.Conversely,the upper-level convergence and lower-level divergence in the MZ strengthened descending flow.Decreases in summer water vapor and atmospheric instability occurred in the MZ after 1986.Hence,the environmental conditions in the MZ may have prevented the occurrence and development of EP in summer during 1986-2016. | Shan LU Zeyong HU Haipeng YU Weiwei FAN Chunwei FU Di WU | 2021 | Advances in Atmospheric Sciences2021，38，10： | 4 |
| 16 | Synthesis of fullerene-itaconic acid copolymer nanoball and its lubrication properties study显示文摘A novel Fullerene-ltaconic acid copolymer is synthesized via radical polymerization. It issoluble in polar solvents such as water, methanol, acetone and tetrahydrofuran etc.. The molecularstructure is identified and characterized by FTIR, UV-Vis and GPC. TEM analyses shows that itpresents an ideal spherical shape in water with an average diameter of about 48nm. Four-balltests show that the addition of a certain concentration of the Fullerene copolymer to the base stockcan effectively raise the load-carrying capacity (P_B Value) and the antiwear ability. JSM-35C modelscanning electron microscope (SEM) is used to examine the morphologies of the worn surfaces,which show that the additive results in a smaller wear scar diameter and a more shallow weargrooving. | GUAN Wenchao SHEN Chunying WU Chunwei Department of Chemistry, Huazhong University of Science and Technoloy, Wuhan 430074, China | 2001 | Science China Mathematics2001，44，S1： | 4 |
| 17 | Development of an aero-thermal coupled through-flow method for cooled turbines显示文摘The influence of complicated interaction between the flow field and heat transfer in cooled turbines becomes more and more significant with the increasing turbine inlet temperature. However, classical through-flow methods did not take into account the influence of the interaction caused by air cooling. The aerodynamic design and cooling design of cooled turbines were carried out separately, and the iterations between the aerodynamic design and cooling design led to a long design period and raised the design cost. To shorten the design period and decrease the design cost, this paper proposes a concise aero-thermal coupled through-flow method for the design of cooled turbines, taking into account the influence of the complicated interaction between the flow field and heat transfer in cooled turbines. The governing equations, such as energy equation and continuity equation in classical through-flow method are re-derived theoretically by considering the historical influence of cooling with the same method that deals with viscous losses in this paper. A cooling model is developed in this method. The cooled blade is split into a number of heat transfer elements, and the heat transfer is studied element by element along both the span and the chord in detail. This paper applies the method in the design of a two-stage axial turbine, of which the first stator is cooled with convective cooling. With the prescribed blade temperature limitation and the knowledge of the flow variables of the mainstream at the turbine inlet, such as the total pressure, total temperature and mass flow rate, the convergence of the calculation is then obtained and the properties of the flow field, velocity triangles and coolant requirement are well predicted. The calculated results prove that the aero-thermal coupled through-flow method is a reliable tool for flow analysis and coolant requirement prediction in the design of cooled turbines. | GU ChunWei LI HaiBo SONG Yin | 2015 | Science China(Technological Sciences)2015，58，12： | 3 |
| 18 | Low-temperature Preparation of Photocatalytic TiO_2 Thin Films on Polymer Substrates by Direct Deposition from Anatase Sol显示文摘锐钛矿 TiO_2 大音阶的第五音被 titanium-n-butoxide 的水解作用在丰富的酸的水溶液和随后的倒流在温和条件(75 deg C 和周围的压力) 下面综合提高结晶化。在房间温度并且在周围的空气,水晶的 TiO_2thin 电影在 polymethylmethacrylate (PMMA ) 上被扔,从由 dip-coating 的同样准备的 TiO_2 大音阶的第五音的 SiO_2 涂的 PMMA 和 SiO_2-coatedsilicone 橡胶底层处理。在聚合物底层上的 TiO_2 薄电影以前的 SiO_2 层不能仅仅保护底层免受 TiO_2 薄电影的 thephotocatalytic 分解的伤害而且提高 TiO_2 薄电影的粘附到底层。地排放类型扫描电子显微镜(FE-SEM ) 调查表明填写 TiO_2 薄电影的 nanoparticles 的平均粒子尺寸是大约 35 约 47 nm。TiO_2 薄电影在充气条件下面在水溶液在反应灿烂的红染料 X-3B 的降级展出了高相片催化活性。相片的 Thepreparation 过程聚合物底层上的催化 TiO_2 薄电影相当简单并且一条低温度线路。 | Van HU Chunwei YUAN | 2006 | Journal of Materials Science & Technology2006，22，2： | 3 |
| 19 | Design and Analysis of S-CO_2 Cycle and Radial Turbine for SOFC Vehicle Waste-Heat Recovery显示文摘Solid oxide fuel cell(SOFC) vehicles are considered to have broad prospects for development, and the high operating temperature of SOFC results in great potential for waste-heat recovery. Many concepts for utilizing waste heat of SOFC have been suggested and studied, and most of them directly couple an SOFC to a gas turbine, which require the SOFC to operate at an elevated pressure and make the system less flexible and thus harder to operate. In recent years, with the development of turbine and heat exchanger technology, the supercritical carbon dioxide(S-CO_2) power cycle has raised widespread attractions for the waste recovery. This study explores the potential of S-CO_2 Brayton cycle to realize waste-heat recovery for an SOFC vehicle. The SOFC can operate at atmospheric pressure, and the hybrid system is easier to operate than the directly coupled systems. In this paper, a simple recuperated S-CO_2 Brayton cycle is proposed and the key component, radial inflow turbine is designed and focused. The flow state of the designed turbine is analyzed in detail based on computational fluid dynamics(CFD) numerical simulation. Five cases with different impeller tip clearances are numerically simulated to study its influence on the turbine performance. In addition, off-design performance analysis of the radial inflow turbine is conducted considering the temperature fluctuation of SOFC in practical applications. | XIA Liu LI Xuesong SONG Jian REN Xiaodong GU Chunwei | 2019 | Journal of Thermal Science2019，28，3： | 3 |
| 20 | Microbial diversity of soil bacteria in agricultural field contaminated with heavy metals显示文摘在这研究,我们靠着以前与重金属污染的一家化学工业工厂从一个地点在一件土壤样品评估了细菌的差异。从直接从土壤提取的脱氧核糖核酸放大的 16S rDNA 序列的分析揭示了 17 种不同细菌的类型(类或种) 。他们包括了 Polyangium spp, Sphingomonas spp, Variovorax spp, Hafina spp, Clostridia, Acidobacteria,伤寒和一些未耕作的紧张。能高容忍的微生物镉的集中(500 μ m ol/L 并且在上面) 也从土壤被孤立。这些孤立 Acinetobacter (紧张 CD06 ) 的包括的紧张, Enterobacter sp。(紧张 CD01, CD03, CD04 和 CD08 )( 也在文化无关的途径识别的类似的紧张) 并且 Stenotrophomonas sp 的紧张。结果显示从土壤的 16S rDNA 的直接分析识别的种类能与从丰富文化和微生物引起的活动获得的那些紧张相当不同因为重金属抵抗可能是适当地探讨由的更多实际孤立。 | CHIEN Chihching KUO Yumei CHEN Changchieh HUNG Chunwei YEH Chihwei YEH Weijen | 2008 | Journal of Environmental Sciences2008，20，3： | 3 |
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