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| 1 | Study of action mechanisms and properties of Cr^(3+) cross-linked polymer solution with high salinity显示文摘Performance characteristics of partially hydrolyzed polyacrylamide (HPAM) and cross-linked polymer (CLP, Cr 3+ as the cross linker) solutions have been investigated. A Brookfield viscometer, rheometer, dynamic light scattering system, and core flow device have been used to measure the viscosity, viscoelasticity, polymer coil dimensions, molecular configuration, flow characteristics, and profile modification. The results show that, under conditions of high salinity and low HPAM and Cr 3+ concentrations, cross-linking mainly occurred between different chains of the same HPAM molecule in the presence of Cr 3+ , and a cross-linked polymer (CLP) system with a local network structure was formed. Compared with an HPAM solution of the same concentration, the apparent viscosity of the CLP solution increased slightly or remained almost unchanged, but its viscoelasticity (namely storage modulus, loss modulus, and first normal stress difference) increased, and the resistance coefficient and residual resistance coefficient increased significantly. This indicates that the CLP solution exhibits a strong capability to divert the sequentially injected polymer flood from high-permeability zones to low-permeability zones in a reservoir. Under the same HPAM concentration conditions, the dimensions of polymer coils in the CLP solution increased slightly compared with the dimensions of polymer coils in HPAM solution, which were smaller than the rock pores, indicating that the cross-linked polymer solution was well adapted to reservoir rocks. Core flood experiments show that at the same cost of reagent, the oil recovery by CLP injection (HPAM-1, Cr 3+ as the cross linker) is 3.1% to 5.2% higher than that by HPAM- 2 injection. | Lu Xiangguo Liu Jinxiang Wang Rongjian Liu Yigang Zhang Song | 2012 | Petroleum Science2012，9，1： | 8 |
| 2 | Detrital Zircon Geochronology of the Radial Sand Ridge System of Jiangsu Coast, East China: Implication for Sediment Provenance显示文摘The radial sand ridge system(RSRS) located at Jiangsu coast of China attracts much attention on its origin and mechanic of formation for its special structure and potential land resource. Due to complicated hydrodynamic condition, the Jiangsu RSRS is a hot debated on its potential sources, Yangtze River or Yellow River? We collected ten sand samples from surface sediments along the west coast of Bohai Sea and Yellow Sea from the modern Yellow River estuary to Yangtze River estuary in summer, 2013. The samples are analyzed by method of detrital zircon age for source identification of the RSRS sediments. The U-Pb age spectra of detrital zircon grains of the samples show a wide range from Cenozoic to Late Archean with several age peaks. Comparing the age spectra between the Yangtze River and the Yellow River, the detrital zircons have younger age(<100 Ma) group in the Yangtze River. These age distribution of the Jiangsu coastal RSRS sediments are similar to that of the Yangtze River, but different from the Yellow River. The samples located adjacent to the old Yellow River Delta show more wide-range age distribution, implying a compounded origination from the both rivers. Based on these findings it is proposed that, contrary to common opinion, the main sediment source of the Jiangsu RSRS is the Yangtze River, rather than the Yellow River. By implication, there should be evidence of hydrodynamic mechanics of oceanic currents and tidal motion. This aspect awaits confirmation in future research. | Jinbao Su Wenbo Rao Yigang Wang Changping Mao | 2018 | Journal of Earth Science2018，29，1： | 6 |
| 3 | Using Geochemistry of Rare Earth Elements to Indicate Sediment Provenance of Sand Ridges in Southwestern Yellow Sea显示文摘The Jianggang Harbour-centered radial sand ridge(RSR) is the largest sand body in the Yellow Sea. Its formation and evolution are of interest for scientists of various fields; however, the sediment provenance is uncertain. In this study, rare earth element(REE) geochemical compositions of the RSR sediments together with their potential sources are investigated to identify the provenance of the RSR sediments. The typical parameters((La/Yb)_N,(La/Sm)_N and(Gd/Yb)_N) as well as the upper continental crust-normalized patterns of REEs can only be associated with source rocks, and thus can be used as effective tracers for the origin and sources of sediments. However, the REE contents of sediments are affected by many factors, such as particle sorting and chemical weathering. Onshore RSR sediments are different in REE geochemical composition from offshore RSR sediments to some extent, suggesting that not all of the offshore RSR sediments have the same sources as the onshore RSR sediments. Meanwhile, the sediments adjacent to the northeast of Cheju Island and at Lian Island near the Lianyun Harbour were not the source of the RSR sediments due to their distinctive REE patterns, dEu,(La/Yb)_N,(Gd/Yb)_N and(La/Sm)_N. The Korean river sediments could be dispersed to the Jiangsu Coast slightly impacting the fine fractions of the RSR sediments, particularly the offshore RSR sediments. Additionally, geochemical comparisons show that the modern Yellow River was responsible for the onshore RSR sediments, whereas the sediment loads from the Yangtze River could serve as a major contributor to the RSR, particularly the offshore RSR. In addition, the offshore RSR could also be partly fed by an unknown source due to some high values of(La/Yb)_N,(La/Sm)_N and La contents differing from those of the Chinese and Korean river sediments. | LI Lei SU Jinbao RAO Wenbo WANG Yigang | 2017 | Chinese Geographical Science2017，27，1： | 4 |
| 4 | High-throughput sequencing exclusively identified a novel Torque teno virus genotype in serum of a patient with fatal fever显示文摘Torque teno virus(TTV) has been found to be prevalent world-wide in healthy populations and in patients with various diseases, but its etiological role has not yet been determined. Using high-throughput unbiased sequencing to screen for viruses in the serum of a patient with persistent high fever who died of suspected viral infection and prolonged weakness, we identified the complete genome sequence of a TTV(isolate Hebei-1). The genome of TTV-Hebei-1 is 3649 bp in length, encoding four putative open reading frames, and it has a G+C content of 49%. Genomic comparison and a BLASTN search revealed that the assembled genome of TTV-Hebei-1 represented a novel isolate, with a genome sequence that was highly heterologous to the sequences of other reported TTV strains. A phylogenetic tree constructed using the complete genome sequence showed that TTV-Hebei-1 and an uncharacterized Taiwan Residents strain, TW53A37, constitute a new TTV genotype. The patient was strongly suspected of carrying a viral infection and died eventually without any other possible causes being apparent. No virus other than the novel TTV was identified in his serum sample. Although a direct causal link between the novel TTV genotype infection and the patient's disease could not be confirmed, the findings suggest that surveillance of this novel TTV genotype is necessary and that its role in disease deserves to be explored. | Zhiqiang Mi Xin Yuan Guangqian Pei Wei Wang Xiaoping An Zhiyi Zhang Yong Huang Fan Peng Shasha Li Changqing Bai Yigang Tong | 2014 | Virologica Sinica2014，29，2： | 4 |
| 5 | A novel mosquito-borne reassortant orbivirus isolated from Xishuangbanna,China显示文摘Dear Editor,The genus Orbivirus,within the family Reoviridae,includes 22 virus species(King et al.,2011).They are distributed globally,but are particularly prevalent in Europe,Asia,and Africa.In addition,they can be transmitted by ticks or other hematophagous insect vectors,including Culicoides,mosquitoes,and sandflies(Belaga- | Shaozhen Xing Xiaofang Guo Xianglilan Zhang Qiumin Zhao Lingli Li Shuqing Zuo Xiaoping An Guangqian Pei Qiang Sun Shi Cheng Yunfei Wang Hang Fan Zhiqiang Mi Yong Huang Zhiyi Zhang Hongning Zhou Jiusong Zhang Yigang Tong | 2017 | Virologica Sinica2017，32，2： | 4 |
| 6 | Numerical study on vertical structures of undertow inside and outside the surf zone显示文摘Nearshore shoaling and breaking waves can drive a complex circulation system of wave-induced currents. In the cross-shore direction, the local vertical imbalance between the gradient of radiation stress and that of pressure due to the setup drives an offshore flow near the bottom, called ‘undertow’, which plays a significant role in the beach profile evolution and the structure stability in coastal regions. A 1DV undertow model was developed based on the relationship between the turbulent shear stress and the gradient of horizontal current velocity. A shear stress boundary condition at the wave trough level derived from the momentum balance equation combined with a no-slip condition at the sea bed were applied to solve the vertical structure of undertow. The turbulent eddy viscosity was assumed to be relevant to the breaking energy dissipation and linearly distributed over depth. The wave characteristics as inputs for the present model were obtained by solving an extended wave energy balance equation incorporating the surface roller effect. Numerical results showed generally good agreements with three series of experimental data for various bathymetries and wave conditions. Comparisons indicated that the formula proposed in this paper for the shear stress at wave trough level could reasonably improve the modeled undertow profiles especially outside the surf zone and a little distance shoreward of the breaking point, and revealed that the model performs well in simulating both vertical and horizontal distributions of undertow and is capable of providing hydrodynamic forcing for the cross-shore sediment transport. | ZHANG Chi WANG Yigang ZHENG Jinhai | 2009 | Acta Oceanologica Sinica2009，28，5： | 4 |
| 7 | Enhanced oil recovery mechanisms of polymer flooding in a heterogeneous oil reservoir显示文摘Taking reservoir rocks and fluids of the Daqing,Dagang and Changqing oilfields as research objects,the EOR mechanisms and technical approach of polymer flooding were discussed.By comparing the displacement performances of ordinary polymer,glycerol,polymer in'sheet-net'structure and heterogeneous weak gel at the same viscosity and concentration,the relationship between the viscosity of polymer displacement agents and displacement performance was demonstrated,and the method of improving polymer flooding effect was worked out.The main mechanism of polymer flooding to increase oil recovery is the swept volume expansion of water injection due to polymer retention in porous media.The viscosity of polymer agents has no positive correlation with polymer flooding effect.Although polymer of'sheet-net'structure has strong capacity in increasing viscosity,it has poor compatibility with pore throat structure of reservoir rock,low injectivity and low shear resistance.Heterogeneous weak gel system has higher adsorption and capture capacity in porous media,which is easy to retain in porous media,and can effectively establish seepage resistance in high permeability layers(zones).Compared with polymer solutions with the same viscosity or concentration,it has stronger ability to expand swept volume.Long term injection of polymer flooding agents will inevitably lead to fluid entry profile reversal,and thus worsening of polymer flooding effect.Alternate injection of high retention and low or non-retention displacement agents can further improve the displacement effect of polymer flooding agents. | LU Xiangguo CAO Bao XIE Kun CAO Weijia LIU Yigang ZHANG Yunbao WANG Xiaoyan ZHANG Jie | 2021 | Petroleum Exploration and Development2021，48，1： | 4 |
| 8 | Targeting strategies for adeno-associated viral vector显示文摘Adeno-associated virus (AAV) has rapidly become a promising gene delivery vector for its excellent advantages of low pathogenicity and long-term gene expression over other viral vectors for human gene therapy. However, the disadvantage of AAV for clinical gene therapy is the broad host range and the lack of tissue or cell specificity, which makes AAVs relatively inefficient gene delivery to target cells and short of safety. Therefore, it is required to improve the targeting capability of recombinant adeno-associated virus (rAAV) for successful gene therapy. At present, the successful identification of vari- ous-serotype AAVs and the improvement of rAAV production technology make it feasible to explore new applications of rAAV vector in clinical gene therapy trials. Moreover, the current development in targeting strategy has brought a bright prospect to rAAV vectors. Many studies have demonstrated that targeting gene therapy based on rAAV vectors could be achieved through transcription targeted, con-jugate targeted, receptor targeted, gene recombinant targeted strategies, etc. This report gives a com- prehensive review of the recent developments of targeting strategies for rAAV vectors. | WANG YiGang HUANG Fang CAI Rong QIAN Cheng LIU XinYuan | 2007 | Chinese Science Bulletin2007，52，12： | 3 |
| 9 | Identification of Histoplasma causing an unexplained disease cluster in Matthews Ridge, Guyana显示文摘Here,we report the identification of Histoplasma causing an unexplained disease cluster in Matthews Ridge,Guyana.In March 2019,14 employees of Chongqing Bosai Mining Company,China,working in a manganese mining of Guyana,had unexplained fever,and two of them died.We obtained lung and brain tissues as well as the blood samples from the two deceased cases(patient No.1 and 2),and bronchoscopy lavages and cerebrospinal fluid samples from one severe case(patient No.3),respectively.All samples were tested by pathological examination,high-throughput sequencing,and real-time PCR.Pathological detection showed the presence of spore-like structures in the lung tissue of patient No.1,indicating a fungal infection in this patient.Nanopore sequencing identified the existing of H.capsulatum in the lung tissue sample within 13 h.Next-generation sequencing identified specific fragments of H.capsulatum in all of the samples tested(lung,brain and blood serum from the deceased cases,and plasma from the severe case).Real-time PCR assays did not reveal any viral infection related to transmission from bat feces.We conclude that H.capsulatum was the causative pathogen of this disease cluster based on epidemiologic,clinical,pathological and nucleic acid evidence. | Ji Wang Weimin Zhou Hua Ling Xiaoping Dong Yi Zhang Jiandong Li Yong Zhang Jingdong Song William J.Liu Yang Li Ruiqing Zhang Wei Zhen Kun Cai Shuangli Zhu Dongyan Wang Jinbo Xiao Yigang Tong Wenli Liu Lihua Song Wei Wu Yang Liu Xiang Zhao Ruihuan Wang Sheng Ye Jing Wang Roujian Lu Baoying Huang Fei Ye Wenwen Lei Rongbao Gao Qi Shi Cao Chen Jun Han Wenbo Xu George F.Gao Xuejun Ma Guizhen Wu | 2019 | Biosafety and Health2019，1，3： | 3 |
| 10 | Critical discharge at Datong for controlling operation of South-to-North Water Transfer Project in dry seasons显示文摘Previous research shows that there is a strong correlation between saltwater intrusion in the Yangtze Estuary and discharge at Datong. In the near future, the discharge of the Yangtze River during dry seasons will decrease due to the construction and operation of large water diversion projects, including the South-to-North Water Transfer Project, which will further exacerbate saltwater intrusion in the estuary. In this paper, a nested 1D river network model and a 2D saltwater numerical model are used to associate saltwater intrusion in the Yangtze Estuary with different values of discharge at Datong. It is concluded that 13 000 m3/s is the critical discharge at Datong for preventing saltwater intrusion and controlling the volume of water transferred by the South-to-North Water Transfer Project. Furthermore, based on the analysis of river discharge from Datong to Xuliujing and in consideration of the influence of all of the water diversion projects, operation schemes are proposed for the Eastern Route of the South-to-North Water Transfer Project for different hydrological years. | Wang Yigang Huang Huiming Li Xi | 2008 | Water Science and Engineering2008，1，2： | 3 |
| 11 | Lithofacies palaeogeography as a guide to petroleum exploration显示文摘Lithofacies palaeogeography as a guide to petroleum exploration is a very important topic.By using the following five exploration examples,this paper discusses the guide of lithofacies palaeogeography or of sedimentary facies to petroleum exploration.These examples include the dolostone of the Lower Ordovician Majiagou Formation 5 in the Ordos area,the Donghe Sandstone of the Upper Devonian and Lower Carboniferous in the Tarim Basin,the reef of the Upper Permian Changxing Formation in the Sichuan Basin,the oolitic bank of the Lower Triassic Feixianguan Formation in the Sichuan Basin,and the lacustrine delta sediments and gravity flow sediments of the Middle and Upper Triassic Yanchang Formation in the Ordos Basin. | Feng Zengzhao Bao Hongping Jia Jinhua Wang Yigang Deng Xiuqin | 2013 | Journal of Palaeogeography2013，2，2： | 3 |
| 12 | Monte-Carlo simulation of cement neutron field distribution characteristics in PGNAA显示文摘The distribution characteristics of the neutron field in cement was simulated using the MCNP code to comply with the requirements of an online Prompt Gamma Neutron Activation Analysis system.Simulation results showed that the neutron relative flux proportion reduced with increasing cement thickness.When the cement thickness remains unchanged,the reduced proportion of thermal neutrons increases to a small extent,but the epithermal, intermediate,and fast neutrons will decrease according to the geometric progression.H element in the cement mainly affects the reduction of fast neutrons and other single-substance elements,e.g.,O,Ca,56Fe,Si,and Al.It also slows down the reduction of the fast neutrons via inelastic scattering.O contributes more than other elements in the reduction of fast neutrons.Changing the H content affects the thermal,epithermal,intermediate,and fast neutrons, while changing the Ca,Fe,and Si contents only influences the thermal,epithermal,and intermediate neutrons;hence, there is little effect on the reduction of fast neutrons. | YANG Jianbo YANG Yigang LI Yuanjing TUO Xianguo LI Zhe LIU Mingzhe CHENG Yi MU Keliang WANG Lei | 2012 | Nuclear Science and Techniques2012，23，6： | 3 |
| 13 | A novel strategy for cancer treatment:Targeting cancer stem cells显示文摘Cancer stem cell/tumor-initiating cell (CSC/TIC) is a subclass of cancer cells possessing parts of properties of normal stem cell. It has a high capacity of proliferation and plays a pivotal role in tumor recurrence and tumor resistance to radiotherapy and chemotherapy. At present, small molecule in-hibitors and fusion proteins are widely used in the CSC-targeting strategy. Gene-virotherapy, which uses oncolytic adenovirus as a vector to mediate the expression of therapeutic gene, shows a signifi-cant superiority to other regimens of cancer treatment and has a good efficacy in the treatment of solid tumors. Thus, it is a promising choice to apply gene-virotherapy into the CSC-targeting treatment. Based on the molecular mechanism underlying CSC self-renewal, a series of effective strategies for targeting CSC have been established. This review will summarize the recent research progresses on CSC-targeting treatment. | LIU Jia MA LeiNa WANG YiGang LIU XinYuan QIAN QiJun | 2008 | Chinese Science Bulletin2008，53，12： | 2 |
| 14 | Effects of additive gases on dimethyl ether conversion through dielectric barrier discharge显示文摘Effects of additive gases on dimethyl ether(DME) conversion through dielectric barrier discharge(DBD) were investigated. Most of the additive gases tested in this work increased the conversion of DME,but decreased the yield of liquid product. However,the addition of O2 markedly increased both the conversion of DME and the yield of liquid product. The results show that when O2 volume fraction was 39.95%,the conversion of DME was close to 100% and the yield of liquid product reached 34.43%. Different additive gases resulted in different mass fractions variation of components in liquid products. | Baowei Wang Xiaolei Cao Yigang Yan Genhui Xu | 2009 | Journal of Natural Gas Chemistry2009，18，4： | 2 |
| 15 | Synthesis of Single-Crystalline Anatase TiO_2 Nanorods With High-Performance Dye-Sensitized Solar Cells显示文摘Single-crystalline anatase TiO_2 nanorods have been prepared by solvothermal method using tetrabutylammonium hydroxide(TBAH) as a morphology controlling agent.The obtained TiO_2 nanorods are dominated by a large percentage of {010} facets.The power conversion efficiency of dye-sensitized solar cell(DSSC) based on anatase TiO_2 nanorods(8.66%) exhibits a significant improvement(35%) compared to that of P25 TiO_2(5.66%).The high performance of the anatase TiO_2 nanorods solar cell is ascribed to their large percent of exposed {010} facets as well as balancing their surface areas and sizes. | Jin Liu Jun Luo Weiguang Yang Yali Wang Linyan Zhu Yueyang Xu Ying Tang Yajing Hu Chen Wang Yigang Chen Weimin Shi | 2015 | Journal of Materials Science & Technology2015，31，1： | 2 |
| 16 | Comparative study on the weight loss and lipid metabolism by tea polyphenols in diet induced obese C57BL/6J pseudo germ free and conventionalized mice显示文摘The role of gut microbiota in terms of host health is becoming increasingly important.In this study,the comparative effects of tea polyphenols(TPs)on weight loss and lipid metabolism on conventionalized mice(CVZ)and pseudo germ-free(PGF)mice(treated with antibiotics)were investigated.Our findings revealed that high fat(HF)diet considerably increased the body weight,total fat and upsurge lipid indices in CVZ mice but PGF mice were not sensitive to the effect of HF diet as CVZ mice.After the dietary administration of TP,body weight,perirenal fat and epididymal fat,liver weight,glucose(GLU)level,total chloestrol(TC level),high density lipoprotein-cholesterol(HDL-C)level significantly lowered in PGF mice as compared to CVZ mice group.However,the area of fat cells and triglyceride(TG)level were significantly increased in PGF mice.In CVZ mice,TP intervention resulted in a considerable drop in the Firmicutes/Bacteroides ratio as compared to PGF mice.The intestinal flora of PGF mice was severely reduced after antibiotic treatment,while TP administration restored intestinal diversity;the abundance of Akkermansia and Lactobacillus increased,whereas the abundance of Enterobacteriaceae and Prevotella reduced.Overall,we can assume that PGF obese mice administered with TP have less anti-obesity effects compared to obese CVZ mice. | Kashif Hussain Yingying Yang Jie Wang Hengjuan Bian Xi Lei Junjie Chen Qianying Li Li Wang Qingping Zhong Xiang Fang Yutao Wang Hong Wei Yigang Tong Zhenlin Liao | 2022 | Food Science and Human Wellness2022，11，3： | 2 |
| 17 | High-temperature deformation behavior of Ti60 titanium alloy显示文摘 | Weiju Jia Weidong Zeng Yigang Zhou Jianrong Liu Qingjiang Wang | 2011 | Materials Science & Engineering A2011，，12： | 2 |
| 18 | Isolation and rapid genetic characterization of a novel T4-like bacteriophage显示文摘无所不在在地球上,抗菌素是在每个生态系统,而是他们的人的知识的最丰富的实体仍然关于有机体的另外的形式与那相比被限制。充实人的知识并且支持抗菌素的利用,孤立并且描绘尽可能许多不同抗菌素是必要的。这里,我们为它的基因描述描述象 T4 一样抗菌素 IME08 和一个快速的方法的隔离。与这个方法,我们容易克隆抗菌素染色体的一些随机的碎片。这些随机的克隆的顺序分析证明抗菌素 IME08 与象 T4 一样 Enterobacteria 分享了最高的顺序类似噬菌体 T4 (94% 身份) , JS98 (95% 身份) , JS10 (95% 身份) 和 RB14 (94% 身份) 分别地,它建议 IME08 属于象 T4 一样抗菌素类。 | Wang Sheng Jiang Huanhuan Chen Jiankui Liu Dabin Li Cun Pan Bo An Xiaoping Zhang Xin Zhou Yusen Tong Yigang | 2010 | Journal of Medical Colleges of PLA(China)2010，25，6： | 2 |
| 19 | PREDICTION OF IMPACT OF THE THREE GORGES PROJECT ON ESTUARY BEACH OF THE YANGTZE RIVER显示文摘PREDICTIONOFIMPACTOFTHETHREEGORGESPROJECTONESTUARYBEACHOFTHEYANGTZERIVERWeibingFENG1YigangWANG2andXiuchengZHONG3ABSTRACTAltho... | Feng, Weibing Wang, Yigang Zhong, Xiucheng | 1998 | International Journal of Sediment Research1998，13，1： | 2 |
| 20 | Numerical study of mono-crystalline silicon solar cells with passivated emitter and rear contact configuration for the efficiency beyond 24% based on mass production technology显示文摘Mono-crystalline silicon solar cells with a passivated emitter rear contact(PERC)configuration have attracted extensive attention from both industry and scientific communities.A record efficiency of 24.06%on p-type silicon wafer and mass production efficiency around 22%have been demonstrated,mainly due to its superior rear side passivation.In this work,the PERC solar cells with a p-type silicon wafer were numerically studied in terms of the surface passivation,quality of silicon wafer and metal electrodes.A rational way to achieve a 24%mass-production efficiency was proposed.Free energy loss analyses were adopted to address the loss sources with respect to the limit efficiency of 29%,which provides a guideline for the design and manufacture of a high-efficiency PERC solar cell. | Peng Wang Gaofei Li Miao Wang Hong Li Jing Zheng Liyou Yang Yigang Chen Dongdong Li Linfeng Lu | 2020 | Journal of Semiconductors2020，41，6： | 2 |
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