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| 1 | Accumulation of soil organic carbon during natural restoration of desertified grassland in China's Horqin Sandy Land显示文摘China's Horqin Sandy Land,a formerly lush grassland,has experienced extensive desertification that caused considerable carbon(C) losses from the plant-soil system.Natural restoration through grazing exclusion is a widely suggested option to sequester C and to restore degraded land.In a desertified grassland,we investigated the C accumulation in the total and light fractions of the soil organic matter from 2005 to 2013 during natural restoration.To a depth of 20 cm,the light fraction organic carbon(LFOC) storage increased by 221 g C/m2(84%) and the total soil organic carbon(SOC) storage increased by 435 g C/m2(55%).The light fraction dry matter content represented a small proportion of the total soil mass(ranging from 0.74% in 2005 to 1.39% in 2013),but the proportion of total SOC storage accounted for by LFOC was remarkable(ranging from 33% to 40%).The C sequestration averaged 28 g C/(m2·a) for LFOC and 54 g C/(m2·a) for total SOC.The total SOC was strongly and significantly positively linearly related to the light fraction dry matter content and the proportions of fine sand and silt+clay.The light fraction organic matter played a major role in total SOC sequestration.Our results suggest that grazing exclusion can restore desertified grassland and has a high potential for sequestering SOC in the semiarid Horqin Sandy Land. | YuQiang LI XueYong ZHAO FengXia ZHANG Tala AWADA ShaoKun WANG HaLin ZHAO TongHui ZHANG YuLin LI | 2015 | Journal of Arid Land2015，7，3： | 21 |
| 2 | Interactive effects of soil temperature and moisture on soil N mineralization in a Stipa krylovii grassland in Inner Mongolia, China显示文摘Determining soil N mineralization response to soil temperature and moisture changes is challenging in the field due to complicated effects from other factors. In the laboratory, N mineralization is highly dependent on temperature, moisture and sample size. In this study, a laboratory incubation experiment was carefully designed and conducted under controlled conditions to examine the effects of soil temperature and moisture on soil N mineralization using soil samples obtained from the Stipa krylovii grassland in Inner Mongolia, China. Five temperature(i.e. 9°C, 14°C, 22°C, 30°C and 40°C) and five moisture levels(i.e. 20%, 40%, 60%, 80% and 100% WHC, where WHC is the soil water holding capacity) were included in a full-factorial design. During the 71-day incubation period, microbial biomass carbon(MBC), ammonium nitrogen(NH4 +-N) and nitrate nitrogen(NO3--N) were measured approximately every 18 days; soil basal respiration for qCO2 index was measured once every 2 days(once a week near the end of the incubation period). The results showed that the mineral N production and net N mineralization rates were positively correlated with temperature; the strongest correlation was observed for temperatures between 30°C and 40°C. The relationships between moisture levels and both the mineral N production and net N mineralization rates were quadratic. The interaction between soil temperature and moisture was significant on N mineralization, i.e. increasing temperatures(moisture) enhanced the sensitivity of N mineralization to moisture(temperature). Our results also showed a positive correlation between the net nitrification rate and temperature, while the correlation between the NH4 +-N content and temperature was insignificant. The net nitrification rate was negatively correlated with high NH4 +-N contents at 80%–100% WHC, suggesting an active denitrification in moist conditions. Moreover, qCO2 index was positively correlated with temperature, especially at 80% WHC. With a low net nitrification rate and high soil basal respiration rate, it was likely that the denitrification concealed the microbial gross mineralization activity; therefore, active soil N mineralization occurred in 60%–80% WHC conditions. | Yue LI YingHui LIU YaLin WANG Lei NIU Xia XU YuQiang TIAN | 2014 | Journal of Arid Land2014，6，5： | 12 |
| 3 | Grey matter volume abnormalities in patients with bipolar I depressive disorder and unipolar depressive disorder:a voxelbased morphometry study显示文摘Bipolar disorder and unipolar depressive disorder(UD) may be different in brain structure. In the present study,we performed voxel-based morphometry(VBM) to quantify the grey matter volumes in 23 patients with bipolar I depressive disorder(BP1) and 23 patients with UD,and 23 age-,gender-,and educationmatched healthy controls(HCs) using magnetic resonance imaging. We found that compared with the HC and UD groups,the BP1 group showed reduced grey matter volumes in the right inferior frontal gyrus and middle cingulate gyrus,while the UD group showed reduced volume in the right inferior frontal gyrus compared to HCs. In addition,correlation analyses revealed that the grey matter volumes of these regions were negatively correlated with the Hamilton depression rating scores. Taken together,the results of our study suggest that decreased grey matter volume of the right inferior frontal gyrus is a common abnormality in BP1 and UD,and decreasedgrey matter volume in the right middle cingulate gyrus may be specifi c to BP1. | Yi Cai Jun Liu Li Zhang Mei Liao Yan Zhang Lifeng Wang Hongjun Peng Zhong He Zexuan Li Weihui Li Shaojia Lu Yuqiang Ding Lingjiang Li | 2015 | Neuroscience Bulletin2015，31，1： | 11 |
| 4 | Variations in the Lower Level of the PBL Associated with the Yellow Sea Fog-New Observations by L-Band Radar显示文摘The Chinese east coastal areas and marginal seas are foggy regions. The development of effective forecasting methods rests upon a comprehensive knowledge of the fog phenomena. This study provides new observations associated with the sea fogs over the northwestern Yellow Sea by means of L-band radar soundings with a high vertical resolution of 30 m. The monthly temperature lapse rate, the Richardson Numbers, and the humidity show obvious seasonal variations in the lower level of the planetary boundary layer (PBL) that are related to the onset, peak and end of the Yellow Sea fog season. The typical pattern of stratification for the sea fog season in the northwestern Yellow Sea is that a stable layer of about 400 m thick caps a 150 m conditionally unstable layer. Besides, the differences between fogs and stratus clouds in terms of humidity, turbulence and temperature are analyzed, which is of significance for sea fog forecast and detection by satellites. The thickness of the sea fogs varies in different stages of the fog season, and is associated with the temperature inversion. The numerical simulation proves that the seasonal variations obtained by the radar well represent the situations over the Yellow Sea. | ZHANG Suping REN Zhaopeng LIU Jingwu YANG Yuqiang WANG Xingong | 2008 | Journal of Ocean University of China2008，7，4： | 10 |
| 5 | Matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1 expression in early focal cerebral infarction following urokinase thrombolysis in rats显示文摘Activity of matrix metalloproteinase-9 increases following cerebral ischemia/reperfusion,and is associated with cerebral microvascular permeability,blood-brain barrier destruction,inflammatory cell infiltration and brain edema.Matrix metalloproteinase-9 also likely participates in thrombolysis.A rat model of middle cerebral artery infarction was established by injecting autologous blood clots into the internal carotid artery.At 3 hours following model induction,urokinase was injected into the caudal vein.Decreased neurological severity score,reduced infarct volume,and increased expression of matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-1 were observed in the cerebral cortex 24 hours after urokinase thrombolysis.These results suggest that urokinase can suppress damage in the acute-early stage of cerebral infarction. | Yuqiang Song Hongli Zou Guofeng Wang Hongxia Yang Zhaohong Xie Jianzhong Bi | 2012 | Neural Regeneration Research2012，7，17： | 6 |
| 6 | Active/passive Q-switching operation of 2 μm Tm,Ho:YAP laser with an acousto-optical Q-switch/MoS_2 saturable absorber mirror显示文摘The active/passive Q-switching operation of a 2 μm a-cut Tm,Ho:YAP laser was experimentally demonstrated with an acousto-optical Q–switch∕MoS_2 saturable absorber mirror. The active Q-switch laser was operated for the first time, to the best of our knowledge, with an average output power of 12.3 W and a maximum pulse energy of 10.3 mJ. The passive Q-switch laser was also the first acquired with an average output power of 3.3 W and per pulse energy of 23.31 μJ, and the beam quality factors of M_x^2 = 1.06 and M_y^2 = 1.06 were measured at the average output power of 2 W. | LINJUN LI XINING YANG LONG ZHOU WENQIANG XIE YUNLONG WANG YINGJIE SHEN YUQIANG YANG WENLONG YANG WEI WANG ZHIWEI LV XIAOMING DUAN MINGHUA CHEN | 2018 | Photonics Research2018，6，6： | 5 |
| 7 | New partial cooperation model for bilevel programming problems显示文摘Partial cooperation models are studied for many years to solve the bilevel programming problems where the follower’s optimal reaction is not unique. However, in these existed models, the follower’s cooperation level does not depend on the leader’s decision. A new model is proposed to solve this deficiency. It is proved the feasibility of the new model when the reaction set of the lower level is lower semicontinuous. And the numerical results show that the new model has optimal solutions when the reaction set of the lower level is discrete, lower semi-continuous and non-lower semi-continuous. | Shihui Jia Zhongping Wan Yuqiang Feng Guangmin Wang | 2011 | Journal of Systems Engineering and Electronics2011，22，2： | 4 |
| 8 | Neural control of hypersonic flight dynamics with actuator fault and constraint显示文摘This paper deals with the control problem of actuator fault and saturation for hypersonic flight vehicles. Different from previous back-stepping design, the scheme is on transforming the dynamics into the'prediction function'. The controller is constructed with high gain observer, while the effect of fault and saturation is compensated by neural networks. For the input saturation, the auxiliary dynamics is included to design the adaptive learning law. The neural weights and filtered tracking error are guaranteed to be bounded via Lyapunov approach. The effectiveness of the proposed method is verified by simulation of winged-cone model. | WANG ShiXing ZHANG Yu JIN YuQiang ZHANG YongQuan | 2015 | Science China(Information Sciences)2015，58，7： | 4 |
| 9 | Asymptotic regulation of cascade systems with unknown control directions and nonlinear parameterization显示文摘A robust partial-state feedback asymptotic regulating control scheme is developed for a class of cascade systems with both nonlinear uncertainties and unknown control directions. A parameter separation technique is introduced to separate the time-varying uncertainty and the unmeasurable state from nonlinear functions. Then, the Nussbaum-type gain method together with the idea of changing supply functions is adopted in the design of a smooth partial-state regulator that can ensure all the signals of the closed-loop system are globally uniformly bounded. Especially, the system state asymptotically converges to zero. The design procedure is illustrated through an example and the simulation results show that the controller is feasible and effective. | Qiangde WANG Chunling WEI Yuqiang WU | 2009 | 控制理论与应用(英文版)2009，7，1： | 4 |
| 10 | Afforestation effects on soil microbial abundance, microbial biomass carbon and enzyme activity in dunes of Horqin Sandy Land, northeastern China显示文摘In order to investigate the effects of afforestation on soil microbial abundance, microbial biomass carbon and enzyme activity in sandy dunes, 20-year-old Pinus sylvestris var. mongolica Litv. (PSM) and Populus simonii Carrière (PSC) mature forests were selected in Horqin Sandy Land, and mobile dunes was set as a control (CK). Results show that PSM and PSC plantations can improve soil physicochemical properties and significantly increase microbiological activity in mobile dunes. Soil microbial abundance, microbial biomass carbon and enzyme activity show an order of PS>PSM>CK. Total soil microbial abundance in PSM and PSC was respectively 50.16 and 72.48 times more than that in CK, and the differences were significant among PSM, PSC and CK. Soil microbial biomass carbon in PSM and PSC was respectively 23.67 and 33.34 times more than that in CK, and the difference was insignificant between PSM and PSC. Soil enzyme activity, including dehydrogenase (DEH), peroxidase (PER), protease (PRO), urease (URE) and cellobiohydrolase (CEL) in PSM and PSC were respectively 19.00 and 27.54, 4.78 and 9.89, 4.05 and 8.67, 29.93 and 37.46, and 9.66 and 13.42 times of that in CK. P. sylvestris and P. simonii can effectively improve soil physicochemical and microbiological properties in sandy dunes and fix mobile dunes in Horqin Sandy Land. The C mic :C ratio is an applicable indicator to estimate soil stability and soil water availability, and based on an overall consideration of plantation stability and sustainability, P. sylvestris is better than P. simonii in fixing mobile dunes in sandy land. | ShaoKun Wang XueYong Zhao TongHui Zhang YuQiang Li Jie Lian WenDa Huang JianYing Yun | 2013 | Research in Cold and Arid Regions2013，5，2： | 3 |
| 11 | HYSYS Automation and Its Application on Evaluation of Plate Heat Exchanger显示文摘当为 multicomponent 混合物模仿或设计板热 exchangers 时,大多数设计者经常与怎么选择或估计物理性质参数和希望有能被采用的一个可靠数据库上的问题被困惑。商业代码 HYSYS 供应为 them.This 工作的超过 1500 种纯物质和超过 16 000 个二进制系数上的物理性质包裹简短基于在内部板热 exchanger 模拟代码和 HYSYS 包裹之间的微软部件对象模型(COM ) 介绍了一个有效通讯接口。一个定做的 HYSYS-COM 接口的应用程序显示出高效率,例如为评估每条过程溪流的性质需要的时间的重要减小。这个自动化方法能方便地被扩大为象热转移,列,和另外的设备那样的任何特定的操作设备推进优化学习。 | Dai Yuqiang Liu Wenwei Wang Shaomin Hu Dapeng | 2008 | China Petroleum Processing & Petrochemical Technology2008，10，3： | 3 |
| 12 | siRNA of ADAM17 gene induces apoptosis,proliferation inhibition and enhances the effects of genistein on HepG2 cells显示文摘Objective:To investigate the effects of siRNA of ADAM17 gene and genistein on apoptosis and the inhibition of proliferation in HepG2 cells in an attempt to seek an effective therapy for hepatocellular carinoma. Methods:Cells were divided into control groups and experimental groups and siRNA was used to silence the ADAM17 gene, alone and in combination with genistein. Cells were harvested at several time periods and assessed for proliferation and apoptosis. Proliferation was assayed by MTT at 24, 48, 72 and 96 hours following treatment and apoptosis was assessed by flow cytometric analysis at 48 hours. Results:In siRNA groups, proliferation of cells was significantly inhibited compared to the control groups at 24, 48 and 72 hours(P < 0.05), and apoptosis was significantly increased at 48 hours(P < 0.01); In genistein groups, proliferation was inhibited at 24, 48, 72 and 96 hours, and the apoptosis ratio was significantly increased at 48 hours(P < 0.01); while in the groups that received the combination of siRNA transfection and genistein treatment, there was a further significant decrease of proliferation and increase in apoptosis compared with either treatment alone. Conclusion:The ADAM17 gene could be an effective target, and genistein could be a useful agent, in the treatment of hepatocellular carcinoma. siRNA of ADAM17 gene and genistein both inhibited HepG2 cells proliferation and promoted apoptosis, and further, the combination of these treatments had a greater effect than either treatment alone. | Yongcun Liu Zuoren Wang Yuqiang Ji Feng Li | 2009 | Journal of Nanjing Medical University2009，23，2： | 2 |
| 13 | Adjustable thermal expansion in La(Fe,Si)13-based conductive composites by high-pressure synthesis显示文摘Providing a suitable contact interface, where a high conductivity material with a desirable coefficient of thermal expansion(CTE) adjoins the target micro-electric devices, is very crucial to optimize the properties and service life of the relevant instruments. Regrettably, a high conductivity, low thermal expansion and relatively inexpensive material is very rare. Composites, fortunately, can offer a method to design materials with adjustable properties by mixing two or more diverse constituents. In this paper, high conductivity composites with adjustable thermal expansion were successfully prepared by a high-pressure synthesis. The composites are based on combining La(Fe,Si)13-based compounds, the materials showing a giant, isotropic negative thermal expansion(NTE) properties, within Cu matrix. The La(Fe,Si)13-based compounds were used to adjust the CTE of the composites, while the Cu phase is in charge of tuning the thermal conductivity properties. Thus, by changing the relative amount of the two components, the composites with high conductivities and adjustable CTE were achieved. Furthermore, the thermal expansion and magnetic properties of the composites were investigated by a physical property measurement system. The present results highlight the potential applications of the Cu-based high conductivity composites with room-temperature NTE properties in the thermal contacts to various semiconductor and microelectronic devices. | Wei Wang Rongjin Huang Yi Shan Yuqiang Zhao Xinran Shan Shibin Guo Chuanjun Huang Laifeng Li | 2019 | Progress in Natural Science:Materials International2019，29，1： | 2 |
| 14 | Study on Wall Temperature Distribution of Oscillating Tube显示文摘The wall temperature distribution and heat transfer process of the oscillating tube have been investigated in thispaper using both numerical simulation and experimental method. The wall temperature of oscillating tube increasesrapidly in the inlet and then decreases slowly, moreover, the rally phenomenon of wall temperature nearthe closed end is observed. With the increase of jet flow frequency, the highest wall temperature increases and thelocation of that moves towards the inlet. The velocity of pressure wave in the oscillating tube almost remainsconstant even its intensity changes. The quantity of heat transfer between the gas and inner wall of the oscillatingtube determines the wall temperature of every location, and the pressure wave disturbance can cause the heattransfer quantity change. Each pressure wave has its own disturbance range. The wall temperature distribution canbe explained by the change of pressure wave intensity and its disturbance time. Besides, the step and rally of walltemperature are discussed, which shows that the conditions of heat transfer can be improved due to intersection orreflection of pressure waves. | Dapeng HU Peiqi LIU Wenjing ZHAO Che ZHU Yudong WANG Yuqiang DAI Jiupeng ZOU | 2009 | Journal of Thermal Science2009，18，3： | 2 |
| 15 | 3-Oxodapagliflozin as a Potent and Highly Selective SGLT2 Inhibitor for the Treatment of Type 2 Diabetes显示文摘 | ZHANG Shuo WANG Yuli LIU Wei XIE Yafei LIU Yuqiang XU Weiren TANG Lida WANG Jianwua ZHAO Guilong | 2014 | Chemical Research in Chinese Universities2014，30，5： | 2 |
| 16 | A Population Genetic Analysis of Continuously Selected Chlamys farreri Populations显示文摘This study applied an optimized one-step 2b-RAD library construction strategy and performed simplified genome sequencing of 539 individuals from three continuously selected Chlamys farreri populations. SNP screening was performed using RAD typing software and population genetic parameters for the continuously selected populations from three generations(G1, G2, G3) were determined. The results showed that the optimized one-step 2b-RAD library construction strategy greatly simplified the experimental process, making it suitable for efficiently constructing a large number of libraries. A total of 18450 SNP markers were identified, which evenly distributed throughout the genome. Population genetic analysis of these three generations showed that the mean value of observed heterozygosity was 0.275 ± 0.177, 0.272 ± 0.181 and 0.275 ± 0.166, respectively. Meanwhile, the mean value of expected heterozygosity was 0.275 ± 0.141, 0.274 ± 0.145 and 0.280 ± 0.133, respectively. The Wright's fixation index(F) was 0.04291, 0.04976 and 0.06685, respectively. Markers deviated from Hardy–Weinberg equilibrium accounted for 10.34%, 12.64%, and 23.11%, and the Shannon diversity index was 0.0999 ± 0.0404, 0.0921 ± 0.0388 and 0.0733 ± 0.0308. FIS(also known as the inbreeding coefficient) of the three populations was 0.0256, 0.0323 and 0.0468, respectively. We suggested that the 2b-RAD method is well suited to population genetic studies of aquacultured organisms. Moreover, our results indicated that the continuous selection affected the population genetic structure of the cultured Penglai-Red scallop, but the change was not significant; therefore, population selection should continue. | ZHANG Lu LI Yuli LI Yangping YANG Zhihui LI Yuqiang WANG Yangfan WANG Shi BAO Zhenmin | 2018 | Journal of Ocean University of China2018，17，4： | 2 |
| 17 | Design, Synthesis and Biological Activity of Tetrazole-bearing Uric Acid Transporter 1 Inhibitors显示文摘 | CAI Wenqing LIU Wei XIE Yafei WU Jingwei LIU Yuqiang LIU Changying XU Weiren TANG Lida WANG Jianwu ZHAO Guilong | 2017 | Chemical Research in Chinese Universities2017，33，1： | 2 |
| 18 | A ratiometric near-infrared naphthalimide-based fluorescent probe with high sensitivity for detecting Fe^(2+)in vivo显示文摘Iron is one of the essential trace elements in the human body.It plays an important role in human biology and pathology.Deregulation of iron levels in cells is associated with disease development.In this work,we synthesized a novel near-infrared intramolecular charge transfer(ICT)based ratiometric fluorescent probe to detect Fe^(2+),by using naphthalimide and indole moieties as building blocks.Our work showed that the radiometric probe has excellent selectivity,sensitivity and rapid response.Moreover,we could successfully perform real-time monitoring of Fe^(2+) in He La cells and C.elegans. | Lina Huang Yu Chen Yuqiang Zhao Yumin Wang Junwei Xiong Junfeng Zhang Xianghua Wu Ying Zhou | 2020 | Chinese Chemical Letters2020，31，11： | 2 |
| 19 | Review on the applications of Tropospheric Emissions Spectrometer to air-quality research:Perspectives for China显示文摘The Tropospheric Emissions Spectrometer(TES)aboard the National Aeronautics and Space Administration's(NASA's)Aura satellite launched in July 2004 is the first satellite instrument to provide simultaneous retrievals of ozone(O_(3))and carbon monoxide(CO)throughout the Earth’s lower atmosphere.This paper briefly reviews the TES instrument,the retrieval of O_(3)and CO profiles,and the validation of the retrievals.The applications of TES O_(3)and CO products include mapping the vertical and horizontal distribution of tropospheric O_(3)and CO and their correlations,examining the regional and continental outflow,and analyzing the variability of the two species associated with certain weather and climatic conditions,such as El Niño and the Asian monsoon.TES retrievals of O_(3)and CO offer an important new source of satellite data over China with good spatial and temporal coverage that can provide evaluation and constraints on the performance of chemical transport models in simulating the general features of ozone pollution over China.Special observations have been conducted and requests may be submitted to the TES team to make geographically focused observations of O_(3)and CO over China. | Yuxuan WANG Yuqiang ZHANG Jiming HAO | 2010 | Frontiers of Environmental Science & Engineering2010，4，1： | 1 |
| 20 | Predicting bioavailability of PAHs in field-contaminated soils by passive sampling with triolein embedded cellulose acetate membranes显示文摘 | Yuqiang Tao Shuzhen Zhang Zijian Wang Peter Christie | 2008 | Environmental Pollution2008，，2： | 1 |
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