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| 1 | Factors Affecting Sensory Quality of Cooked japonica Rice显示文摘The sensory quality of cooked rice is an important factor in determining its market price, as well as consumer acceptance and breeding efforts aimed at improvement of rice grain quality. In this study,the sensory quality and physicochemical properties of three japonica rice varieties harvested in two different growing locations(Xiangshui and Hangzhou of China) were compared to determine the most important factors affecting the sensory quality. All the three varieties had higher scores for overall sensory quality in Xiangshui than in Hangzhou, indicating that the growing location is a key factor in determining the sensory quality of cooked japonica rice. In addition to growing location, variety(genotype) also had an important effect. Longdao 18 scored the highest for overall sensory quality in the two locations, whereas Longdao 30 had the lowest score in Xiangshui, and both Longdao 20 and Longdao 30 had the lowest scores in Hangzhou. Many physicochemical properties, such as apparent amylose content, protein content, thermal properties and free amino acid contents, showed significant differences between the two locations. Correlation analysis showed that apparent amylose content and protein content had contrasting effects on all the sensory attributes. The overall sensory quality was negatively correlated with protein content(r =-0.89, P < 0.01) and positively correlated with gel hardness(r = 0.91, P < 0.01),indicating that the protein content and hardness are important physicochemical properties for predicting the sensory quality of japonica rice. These findings will provide guidance for selection from the diverse genotypes available to develop new varieties with the desired eating and cooking quality. | XU Yanjie YING Yining OUYANG Shuhong DUAN Xiaoliang SUN Hui JIANG Shukun SUN Shichen BAO Jinsong | 2018 | Rice science2018，25，6： | 23 |
| 2 | Seismic damage-cracking analysis of arch dams using different earthquake input mechanisms显示文摘In this study, a nonlinear model is presented for analysis of damage-cracking behavior in arch dams during strong earthquakes using different seismic input mechanisms. The nonlinear system includes a plastic-damage model for cyclic loading of concrete considering strain softening and a contact boundary model of contraction joint opening. Two different earthquake input mechanisms are used for comparison, including massless foundation input model and viscous-spring boundary model considering radiation damping due to infinite canyon. The results demonstrate that effects of seismic input mechanism and radiation damping on nonlinear response and damage-cracking of the dam are significant. Compared with the results of using massless foundation input model, the damage-cracking region and contraction joint opening are substantially reduced when using viscous-spring boundary model to take into account radiation damping. However, if the damping ratio of the dam is artificially increased to about 10%―15% for massless foundation input model, the joint opening and damage-cracking of the dam are comparable to the results obtained from the viscous-spring boundary model. | JianWen Pan ChuHan Zhang JinTing Wang YanJie Xu | 2009 | Science China(Technological Sciences)2009，52，2： | 18 |
| 3 | Effect of dietary interventions on the intestinal microbiota of Mongolian hosts显示文摘The gut microbiota of Mongolian hosts has distinctive characteristics due to their meat- and dairyoriented daily diets and unique genotype.The aim of the present study was to investigate the effect of switching from the typical high protein and fat Mongolian diets to carbohydrate-rich meals composed principally of wheat,rice and naked oats on the host gut microbiota within 3 weeks.Our study took the advantage of the long sequence reads produced by the Pac Bio single molecule real-time sequencing technology to enable the profiling of subjects' gut microbiota communities along the diet intervention to the species precision.We found that the bacterial richness and diversity decreased apparently along the diet intervention.During the diet intervention,the gut microbiota composition displayed no significant difference at phylum level(with major phyla of Firmicutes,Bacteroidetes,Tenericutes and Proteobacteria).The relative abundances of some genera such as Bacteroidetes,Faecalibacterium,Roseburia,Alistipes,Streptococcus,and Oscillospira were significantly altered after the diet switching started.Notably,significant changes were also observed in the proportions of the species Bacteroides dorei,Bacteroides fragilis,Bacteroides thetaiotaomicron,Ruminococcus albus,Ruminococcus faecis,Roseburia faecis and Eubacterium ventriosum.These results have demonstrated that diet and host gut microbiota is closely linked. | Jing Li Haiyan Xu Zhihong Sun Qiangchuan Hou Lai-Yu Kwok Wuri Laga Yanjie Wang Huimin Ma Zhongjie Yu Bilige Menghe Heping Zhang | 2016 | Science Bulletin2016，61，20： | 14 |
| 4 | The OsAMT1.1 gene functions in ammonium uptake and ammoniumepotassium homeostasis over low and high ammonium concentration ranges显示文摘Rice(Oryza sativa) grown in paddy fields is an ammonium(NH^+_4)-preferring crop;however,its AMT-type NH^+_4transporters that mediate root N acquisition have not been well characterized yet.In this study,we analyzed the expression pattern and physiological function of the OsAMT1.1 gene of the AMT1 subfamily in rice.Os AMT1.1 is located in the plasma membrane and is mainly expressed in the root epidermis,stele and mesophyll cells.Disruption of the Os AMT1.1 gene decreased the uptake of NH^+_4,and the growth of roots and shoots under both low NH^+_4and high NH^+_4conditions.Os AMT1.1 contributed to the short-term(5 min)^(15)NH^+_4influx rate by approximately one-quarter,irrespective of the NH^+_4concentration.Knockout of Os AMT1.1 significantly decreased the total N transport from roots to shoots under low NH^+_4conditions.Moreover,compared with the wild type,the osamt1.1 mutant showed an increase in the potassium(K)absorption rate under high NH^+_4conditions and a decrease under low NH^+_4conditions.The mutants contained a significantly high concentration of K in both the roots and shoots at a limited K(0.1 mmol/L)supply when NH^+_4was replete.Taken together,the results indicated that OsAMT1.1 significantly contributes to the NH^+_4uptake under both low and high NH^+_4conditions and plays an important role in Ne K homeostasis in rice. | Chang Li Zhong Tang Jia Wei Hongye Qu Yanjie Xie Guohua Xu | 2016 | Journal of Genetics and Genomics2016，43，11： | 12 |
| 5 | Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event. | TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou | 2018 | Science China(Physics,Mechanics & Astronomy)2018，61，3： | 12 |
| 6 | Controllable Synthesis of Fluorescent Carbon Dots and Their Detection Application as Nanoprobes显示文摘Carbon dots(CDs), as a new member of carbon nanomaterial family, have aroused great interest since their discovery in 2004. Because of their outstanding water solubility, high sensitivity and selectivity to target analytes, low toxicity, favorable biocompatibility, and excellent photostability, researchers from diverse disciplines have come together to further develop the fundamental properties of CDs. Many methods for the production of CDs have been reported, therein, hydrothermal and solvothermal technology needs simple equipments, and microwave synthesis needs less reaction time, hence these methods become current common synthesis methods, in which many precursors have been applied to produce CDs. Due to their excellent fluorescence, CDs have made impressive strides in sensitivity and selectivity to a diverse array of salt ions,organic/biological molecules and target gases. The development of CDs as nanoprobes is still in its infancy, but continued progress may lead to their integration into environmental and biological applications. Hydrothermal,solvothermal, and microwave synthesis of fluorescent carbon dots and their detection applications as nanoprobes in salt ions, organic/biological molecules, and target gases will be reviewed. | Zhi Yang Zhaohui Li Minghan Xu Yujie Ma Jing Zhang Yanjie Su Feng Gao Hao Wei Liying Zhang | 2013 | Nano-Micro Letters2013，5，4： | 12 |
| 7 | The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment. | ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，2： | 11 |
| 8 | Multifunctional lymph-targeted platform based Mn@mSiO2 nanocomposites: Combining PFOB dual-mode imaging and DOX for cancer diagnose treatment on for and显示文摘 | Tian Liu Guangyu Wu Jiejun Cheng Qing Lu Yanjie Yao Zhenjing Liu Dongchen Zhu Juan Zhou Jianrong Xu Jun Zhu Dannong He | 2016 | Nano Research2016，9，2： | 11 |
| 9 | Nutritional compositions of various potato noodles:Comparative analysis显示文摘In this study,three kinds of noodles,wheat,Shepody potato and Atlantic potato noodles,were produced with blended powder consisting of wheat flour and certain amounts of various potato flours.In order to investigate the effects of potato flour on the nutritional characteristics of noodles,the nutrient compositions of four types of noodles were analyzed:fresh noodle,dried noodle,fresh noodle after boiling,and dried noodle after boiling.Results showed that the contents of protein,crude fiber,total ash,reducing sugar,vitamin B1,vitamin B2,vitamin B3,vitamin C,most mineral elements,dietary fiber,and amino acids in potato noodles were higher than those in wheat noodles.Furthermore,drying and boiling could decrease the contents of vitamin B1,vitamin B3,and mineral elements in noodles,but the nutrient contents in potato noodles remained higher than those in wheat noodles.The comprehensive nutritional values of noodles were evaluated using the index of nutritional quality,the results showed that the nutritional value of Shepody potato noodles was the highest,followed by that of Atlantic potato noodles and then wheat noodles. | Xu Fen Hu Honghai Dai Xiaofeng Liu Qiannan Huang Yanjie Zhang Hong | 2017 | International Journal of Agricultural and Biological Engineering2017，10，1： | 9 |
| 10 | The Low Energy X-ray telescope (LE) onboard the Insight-HXMT astronomy satellite显示文摘The Low Energy X-ray telescope(LE) is one of the three main instruments of the Insight-Hard X-ray Modulation Telescope(Insight-HXMT). It is equipped with Swept Charge Device(SCD) sensor arrays with a total geometrical area of 384 cm^2 and an energy band from 0.7 to 13 ke V. In order to evaluate the particle induced X-ray background and the cosmic X-ray background simultaneously, LE adopts collimators to define four types of Field Of Views(FOVs), i.e., 1.6°×6°, 4°×6°, 50°-60°×2°-6 oand the blocked ones which block the X-ray by an aluminum cover. LE is constituted of three detector boxes(LEDs) and an electric control box(LEB) and achieves a good energy resolution of 140 e V@5.9 ke V, an excellent time resolution of 0.98 ms, as well as an extremely low pileup(<1%@18000 cts/s). Detailed performance tests and calibration on the ground have been performed,including energy-channel relation, energy response, detection efficiency and time response. | Yong Chen WeiWei Cui Wei Li Juan Wang YuPeng Xu FangJun Lul YuSa Wang TianXiang Chen DaWei Han Wei Hu Yi Zhang Jia Huo YanJi Yang MaoShun Li Bo Lu ZiLiang Zhang TiPei Li ShuangNan Zhang ShaoLin Xiong Shu Zhang RongFeng Xue XiaoFan Zhao Yue Zhu YuXuan Zhu HongWei Liu YiJung Yang Fan Zhang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，4： | 8 |
| 11 | MYB56 Encoding a R2R3 MYB Transcription Factor Regulates Seed Size in Arabidopsis thaliana显示文摘Plant seed size is tightly regulated by the development of seed coat,embryo,and endosperm;however,currently,its underlying mechanism remains unclear.In this study,we revealed a regulatory role of an R2R3 MYB transcription factor MYB56 in controlling seed size specifcally in Arabidopsis thaliana L.Loss-of-function or knock-down of MYB56 yielded smaller seeds as compared with the wild type.Conversely,overexpression of MYB56 produced larger seeds.Further observation using semi-thin sections showed that myb56 developed smaller contracted endothelial cells and reduced cell number in the outer integument layer of the seed coat during the seed development;by contrast,MYB56 overexpressing lines had expanded endothelial cells and increased cell number in the outer integument layer of the seed coat,suggesting the essential role of MYB56 in regulating seed development.In addition,reciprocal cross-analysis showed that MYB56 affected the seed development maternally.MYB56 was shown to be dominantly expressed in developing seeds,consistently with its function in seed development.Moreover,quantitative reverse transcription polymerase chain reaction analysis revealed that MYB56 regulates the expression of genes involved in cell wall metabolism such as cell division and expansion.Altogether,our results demonstrated that MYB56 represents an unknown pathway for positively controlling the seed size. | Yanjie Zhang Wanqi Liang Jianxin Shi Jie Xu Dabing Zhang | 2013 | Journal of Integrative Plant Biology2013，55，11： | 8 |
| 12 | Creating a novel herbicide-tolerance OsALS allele using CRISPR/Cas9-mediated gene editing显示文摘Weeds and weedy rice plague commercial rice fields in many countries. Developingherbicide-tolerance rice is the most efficient strategy to control weed proliferation. CRISPR/Cas9-mediated gene editing, which generates small InDels and nucleotide substitutions atand around target sites using error-prone non-homologous end joining DNA repairing, hasbeen widely adopted for generation of novel crop germplasm with a wide range of geneticvariation in important agronomic traits. We created a novel herbicide-tolerance allele inrice by targeting the acetolactate synthase (OsALS) gene using CRISPR/Cas9-mediated geneediting. The novel allele (G628W) arose from a G-to-T transversion at position 1882 of OsALSand conferred a high level of herbicide tolerance. Transgene-free progeny carryinghomozygous G628W allele were identified and showed agronomic performance similar tothat of wild-type plants, suggesting that the G628W allele is a valuable resource fordeveloping elite rice varieties with strong herbicide tolerance. To promote use of the G628Wallele and to accelerate introgression and/or pyramiding of the G628W allele with other elitealleles, we developed a DNA marker for the G628W allele that accurately and robustlydistinguished homozygous from heterozygous segregants. Our result further demonstratesthe feasibility of CRISPR/Cas9-mediated gene editing in creating novel genetic variation forcrop breeding. | Fangquan Wang Yang Xu Wenqi Li Zhihui Chen Jun Wang Fangjun Fan Yajun Tao Yanjie Jiang Qian-Hao Zhu Jie Yang | 2021 | The Crop Journal2021，9，2： | 6 |
| 13 | Acetyl salicylic acid attenuates cardiac hypertrophy through Wnt signaling显示文摘室的肥大是心血管的疾病的事件的一个强大、独立的预言者。低剂量的乙酰水杨酸酸(阿司匹林) 的脉管的性质通过血小板 cyclooxygenase 的不可逆的抑制提供心血管的好处 1;然而,可能的 anti-hypertrophic 性质和阿司匹林的潜在的机制没详细被调查。在这研究,健康野类型的雄的老鼠随机被划分成三个组并且使遭到了到横向的大动脉的收缩(TAC ) 或假冒的操作。操作 TAC 的老鼠与低剂量的阿司匹林的人的等价物被对待(10 mg 吗? | Samuel Chege Gitau Xuelian Li Dandan Zhao Zhenfeng Guo Haihai Liang Ming Qian Lifang Lv Tianshi Li Bozhi Xu Zhiguo Wang Yong Zhang Chaoqian Xu Yanjie Lu Zhiming Du Hongli Shan Baofeng Yang | 2015 | Frontiers of Medicine2015，9，4： | 6 |
| 14 | A novel approach for designing efficient broadband photodetectors expanding from deep ultraviolet to near infrared显示文摘Broadband photodetection(PD)covering the deep ultraviolet to near-infrared(200–1000 nm)range is significant and desirable for various optoelectronic designs.Herein,we employ ultraviolet(UV)luminescent concentrators(LC),iodinebased perovskite quantum dots(PQDs),and organic bulk heterojunction(BHJ)as the UV,visible,and near-infrared(NIR)photosensitive layers,respectively,to construct a broadband heterojunction PD.Firstly,experimental and theoretical results reveal that optoelectronic properties and stability of CsPbI3 PQDs are significantly improved through Er3+doping,owing to the reduced defect density,improved charge mobility,increased formation energy,tolerance factor,etc.The narrow bandgap of CsPbI3:Er3+PQDs serves as a visible photosensitive layer of PD.Secondly,considering the matchable energy bandgap,the BHJ(BTP-4Cl:PBDB-TF)is selected as to NIR absorption layer to fabricate the hybrid structure with CsPbI3:Er3+PQDs.Thirdly,UV LC converts the UV light(200–400 nm)to visible light(400–700 nm),which is further absorbed by CsPbI3:Er3+PQDs.In contrast with other perovskites PDs and commercial Si PDs,our PD presents a relatively wide response range and high detectivity especially in UV and NIR regions(two orders of magnitude increase that of commercial Si PDs).Furthermore,the PD also demonstrates significantly enhanced air-and UV-stability,and the photocurrent of the device maintains 81.5%of the original one after 5000 cycles.This work highlights a new attempt for designing broadband PDs,which has application potential in optoelectronic devices. | Nan Ding Yanjie Wu Wen Xu Jiekai Lyu Yue Wang Lu Zi Long Shao Rui Sun Nan Wang Sen Liu Donglei Zhou Xue Bai Ji Zhou Hongwei Song | 2022 | Light(Science & Applications)2022，11，5： | 5 |
| 15 | Control of endwall secondary flow in a compressor cascade with dielectric barrier discharge plasma actuation显示文摘Three dielectric barrier discharge plasma actuators were mounted at the positions of 20%,40%and 60%of chord length on the endwall in a compressor cascade.The downstream flow field of the cascade has been measured with a mini five-hole pressure probe with and without the plasma actuation.The measured results show that the plasma actuation most effectively reduces total pressure loss and flow blockage when the actuators are operated simultaneously.As each of the actuators is operated independently,the actuator at the position of 20%of chord length most effectively reduces flow blockage, and the actuator at the position of 60%of chord length fairly reduces total pressure loss.However, negative pressure loss reduction occurs with the plasma actuator at the position of 40%of chord length.In brief,the plasma actuation placed on the endwall in the cascade apparently influences the endwall secondary flow,and the optimal locations and strength of actuation are critical for the control of endwall secondary flow in a compressor cascade with the plasma actuators. | LI Gang XU YanJi LIN Bin ZHU JunQiang NIE ChaoQun MA HongWei WANG ZhaoFeng | 2009 | Science China(Technological Sciences)2009，52，12： | 5 |
| 16 | Non-equilibrium Plasma Assisted Combustion of Low Heating Value Fuels显示文摘This paper describes the effects of non-equilibrium air plasma generated by a dielectric barrier discharge (DBD) on the combustion of low heating value fuels. The experimental results indicate that addition of a very small amount of energy to the air flow in the form of DBD significantly improves the flame stability. Moreover, main combustion characteristics such as flame propagation speed, combustion intensity and lean blow-off limits are also enhanced by the effect of plasma. Some active radicals such as excited O atom and excited N2 molecule are observed by spectrograph in the discharge area. Based on the results of numerical investigation we can conclude that these active radicals generated in discharge area can accelerate the production rate of active OH radical which plays a key role in the oxidation process of low heating value fuel, and thus the whole combustion process is accelerated. | Hongbin Hu Quanbin Song Yanji Xu Gang Li Chaoqun Nie | 2013 | Journal of Thermal Science2013，22，3： | 4 |
| 17 | Blade Parameterization and Aerodynamic Design Optimization for a 3D Transonic Compressor Rotor显示文摘现在的纸为与快速的 3D 片和格子生成器( RAPID3DGRID )相结合的 turbomachinery 的空气动力学的设计描述优化方法论,一个 N.S 解答者,一个片 parameterization 方法( BPM ),一个基于坡度的 analyseparameterization 方法( GPAM ),有激增的一个反应表面方法( RSM )算法和一个简单坡度方法。由片 parameterization 方法的使用,一个接近音速的压缩机转子能被一套多项式表示,然后它使我们能转变表示坐标的片数据到表示参数然后减少参数的数字。与改变任何一个参数,我们能获得几组样品。这里,仅仅十个参数被认为寻找一个优化压缩机转子。由于优化,断热的效率被 1.73% 增加。 | Naixing Chen Hongwu Zhang Yanji Xu Weiguang Huang Institute of Engineering Thermophysics,Chinese Academy of Sciences,P.O.Box 2706,Beijing 100080,CHINA.E-mail:nxc@mail.etp.ac.cn Fax:+8610-62573335 | 2007 | Journal of Thermal Science2007，16，2： | 4 |
| 18 | Effects of Acanthopanax senticosus on learning and memory in a mouse model of Alzheimer's disease and protection against free radical injury to brain tissue显示文摘BACKGROUND: Acanthopanax senticosus,a plant of the Araliaceae family,is used in traditional Chinese medicine. It can be used to replenish Qi,strengthen the spleen,tonify the kidney,and relieve mental strain. OBJECTIVE: To observe effects of Acanthopanax senticosus on learning and memory in a mouse model of Alzheimer's disease and abnormal biochemical changes in the brain tissue. DESIGN: A completely randomized grouping,controlled animal experiment. SETTING: Department of Preventive Medicine,School of Basic Medical Sciences,Yanbian University. MATERIALS: A total of 50 Kunming mice,aged 1-1.5 months,equal numbers of males and females,were provided by the Laboratory Animal Center,Yanbian University Medical College. The study was performed in accordance with ethical guidelines for the use and care of animals. Acanthopanax was provided by Yanbian Chengda Pharmaceutical Co.,Ltd. Acanthopanax senticosus (0.5 kg) was soaked in water for 1 hour and transferred to 1.5 kg distilled water for extraction. It was boiled for 1 hour and extracted after 1 hour of boiling. The procedure was repeated 3 times. The extract was condensed to 500 mL and then adjusted to 500 and 1 000 g/L with water. Piracetam tablets were produced by Shandong Luoxin Pharmaceutical Corporation,China. Malonaldehyde (MDA),superoxide dismutase (SOD),and acetylcholinesterase (AChE) kits were purchased from Nanjing Jiancheng Bioengineering Co.,Ltd.,China. METHODS: This study was performed at the Department of Preventive Medicine,School of Basic Medical Sciences,Yanbian University from January to June 2007. All mice were randomly divided into 5 groups with 10 mice in each: control group,model group,low-,and high-dose Acanthopanax senticosus-treated groups,and piracetam-treated group. All groups were administered 0.1 mL/10 g. In the control and model groups,mice were intragastrically administered saline each morning for 5 days prior to experimentation. Five days later,they were intraperitoneally perfused with saline and aluminum trichloride (100 mg/kg),respectively,every other afternoon. In the low-and high-dose Acanthopanax senticosus-treated groups,as well as the piracetam-treated groups,mice were intragastrically administered 500 and 1 000 g/L Acanthopanax senticosus and 23 g/L piracetam suspension,respectively,every morning. Five days later,they were intraperitoneally perfused with aluminum trichloride (100 mg/kg) every other afternoon,20 successive times. MAIN OUTCOME MEASURES: On days 20,23,26,and 29 after treatment,time-to-platform,number of errors,and accuracy were measured by water maze. After anesthesia,mice were euthanized and whole brain tissues were immediately resected and homogenized. MDA levels,and SOD and AChE activities,were measured using the corresponding kits. RESULTS: Fifty mice were included in the final analysis. In the model group,accuracy increased,and time-to-platform was prolonged,compared to control group (P < 0.05-0.01). In the model group,MDA levels significantly increased (P < 0.05),while SOD activity significantly decreased (P < 0.01),compared to control group. MDA levels were significantly lower and SOD activity was significantly higher in the low-and high-dose Acanthopanax senticosus-treated groups,compared to the model group (P < 0.05-0.01). In the model group,AChE activity significantly increased,compared to the control group (P < 0.05). AChE activity was significantly lower in the high-dose Acanthopanax senticosus-treated and the piracetam-treated groups than in the model group (P < 0.05). CONCLUSION: Acanthopanax senticosus can improve learning and memory in a mouse model of Alzheimer's disease,and concomitantly increase SOD activity,inhibit AChE activity,and decrease MDA levels. | Yanji XU Chunji Han Songji XU Xing YU Guozhe Jiang Chunhua Nan | 2008 | Neural Regeneration Research2008，3，2： | 4 |
| 19 | Seismic stability assessment of an arch dam-foundation system显示文摘A seismic stability assessment of arch dam-foundation systems is presented using a comprehensive approach,in which the main factors that significantly influence the seismic response of an arch dam-foundation system are considered.A large scale finite element model with over 1 million degrees of freedom is constructed for the Baihetan arch dam(289 m high),which is under construction in the Southwest of China.In particular,the complicated geological conditions with faults intersecting interlayer shear weakness zones at the dam base and the dam abutment resisting force body is modeled in the analysis.Three performance indices are adopted to assess the seismic stability of the arch dam.The results demonstrate that the opening of the joints of the Baihetan arch dam is small and the water stop installed between the joints would not be torn during a design earthquake.The yielding formed in the interface between the dam and foundation does not reach the grouting curtain that would remain in an elastic state after an earthquake.The yielding zones occurring on the upper portion of the dam faces extend 1/8 thickness of block section into the dam body and thus cantilever blocks need not be concerned with sliding stability.The faults and interlayer shear weakness zones in the near field foundation exhibit severe yielding,and a potential sliding surface is penetrated.Although the factor of safety against sliding of the surface fluctuates with a decreased trend during an earthquake,the minimum instantaneous value reaches 1.02 and is still larger than 1.0.Therefore,a conclusion is drawn that the Baihetan arch dam-foundation system will remain stable under the design earthquake. | Pan Jianwen Xu Yanjie Jin Feng Wang Jinting | 2015 | Earthquake Engineering and Engineering Vibration2015，14，3： | 3 |
| 20 | Investigation of Coal Fueled Chemical Looping Combustion Using Fe_3O_4 as Oxygen Carrier:Influence of Variables显示文摘Chemical-looping combustion (CLC) is a novel combustion technique with inherent CO2 separation.Magnetite (Fe3O4) was selected as the oxygen carrier.Shenhua coal (Inner Mongolia,China),straw coke and natural coke were used as fuels for this study.Influences of operation temperatures,coal to Fe3O4 mass ratios,and different kinds of fuels on the reduction characteristics of the oxygen carrier were investigated using an atmosphere thermogravimetric analyzer (TGA).Scanning electron microscopy (SEM) was used to analyse the characteristic of the solid residues.Experimental results shown that the reaction between the coal and the oxygen carrier become strong at a temperature of higher than 800℃.As the operation temperature rises,the reduction conversion rate increases.At the temperatures of 850oС,900℃,and 950℃,the reduction conversion rates were 37.1%,46.5%,and 54.1% respectively.However,SEM images show that at the temperature of higher than 950℃,the iron oxides become melted and sintered.The possible operation temperature should be kept around 900℃.When the mass ratios of coal to Fe3O4 were 5/95,10/90,15/85,and 20/80,the reduction conversion rates were 29.5%,40.8%,46.5%,and 46.6% respectively.With the increase of coal,the conversion rate goes up.But there exist an optimal ratio around 15/85.Comparisons based on different kinds of fuels show that the solid fuel with a higher volatile and a more developed pore structure is conducive to the reduction reactivity of the oxygen carrier. | Xiaoyan Sun Wenguo Xiang Sha Wang Wendong Tian Xiang Xu Yanji Xu Yunhan Xiao | 2010 | Journal of Thermal Science2010，19，3： | 3 |
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