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| 1 | A semi-physical sediment yield model for estimation of suspended sediment in loess region显示文摘Sediment yield is a complex function of many environmental factors including climate,hydrology,vegetation,basin topography,soil types,and land cover.We present a new semi-physical watershed sediment yield model for the estimation of suspended sediment in loess region.This model is composed by three modules in slope,gully,and stream phases.For slope sediment yield,a balance equation is established based on the concept of hydraulic erosion capacity and soil erosion resistance capacity.According to the statistical analysis of watershed characteristics,we use an exponential curve to approximately describe the spatial variability of watershed soil erosion resistance capacity.In gully phase,the relationship between gully sediment concentration and flow velocity is established based on the Bagnold' stream power function.In the stream phase,we assume a linear dependence of the sediment volume in the reach on the weighted sediment input and output.The proposed sediment yield model is operated in conjunction with a conceptual hydrologic model,and is tested over 16 regions including testing grounds,and small,medium and large watersheds in the loess plateau region in the mid-reach of Yellow River.Our results indicate that the model is reasonable in structure and is able to provide a good simulation of sediment generation and transportation processes at both flood event scale and inter-annual time scale.The proposed model is generally applicable to the watersheds with soil texture similar to that of the loess plateau region in the Yellow River basin in China. | Wei Si Weimin Bao Peng Jiang Liping Zhao Simin Qu | 2017 | International Journal of Sediment Research2017，32，1： | 7 |
| 2 | Clinical manifestations and pathogen characteristics in children admitted for suspected COVID-19显示文摘Coronavirus disease 2019(COVID-19),which is caused by severe acute respiratory syndrome coronavirus-2(SARS-CoV-2),has spread around the world.However,approaches to distinguish COVID-19 from pneumonia caused by other pathogens have not yet been reported.We retrospectively analyzed the clinical data of 97 children with probable COVID-19.A total of 13(13.4%)patients were confirmed positive for SARS-CoV-2 infection by nucleic acid RT-PCR testing,and 41(42.3%)patients were found to be infected with other pathogens.Notably,no pathogen was detected in 43(44.3%)patients.Among all patients,25(25.8%)had familial cluster exposure history,and 52(53.6%)had one or more coexisting conditions.Fifteen(15.5%)patients were admitted or transferred to the PICU.In the 11 confirmed COVID-19 cases,5(45.5%)and 7(63.6%)were positive for IgM and IgG against SARS-CoV-2,respectively.In 22 patients with suspected COVID-19,1(4.5%)was positive for IgG but negative for IgM.The most frequently detected pathogen was Mycoplasma pneumonia(29,29.9%).One patient with confirmed COVID-19 died.Our results strongly indicated that the detection of asymptomatic COVID-19 or coexisting conditions must be strengthened in pediatric patients.These cases may be difficult to diagnose as COVID-19 unless etiologic analysis is conducted.A serologic test can be a useful adjunctive diagnostic tool in cases where SARS-CoV-2 infection is highly suspected but the nucleic acid test is negative. | Xiaofang Cai Hanlan Jiang Simin Zhang Shengying Xia Wenhui Du Yaoling Ma Tao Yu Wenbin Li | 2020 | Frontiers of Medicine2020，14，6： | 2 |
| 3 | RESEARCH ON THE ON-LINE MEASURING SYSTEM FOR THE MIDDLE-CONVEX AND VARYING ELLIPSE PISTON SKIRT显示文摘The middle convex and varying ellipse piston is th e key component of an internal combustion engine In general,the piston is mac hined by non circular section CNC lathe,but the measuring of piston profile is manipulated by off line Because the off line measuring reference is differen t from the machining reference,the measurement result is diverse from the act ual dimension A new method to measure the middle convex and varying ellipse p iston profile, which is known as on line measuring, is presented By using thi s kind of method,the high measurement accuracy can be gained,as well as meeting the production requirement. | Wang Xiankui,Jiang Simin,Qian Lei,Shi Zhongdong,Wu Dan (Department of the Precision Instrument and Mechanics,Qinghua University) | 2001 | Chinese Journal of Mechanical Engineering2001，14，4： | 1 |
| 4 | 显示文摘 | Cai Rui Jiang Simin Yu Xing | 2012 | J MaterChem2012，22，16： | 1 |
| 5 | Multi-3D hierarchical biomass-based carbon particles absorber for solar desalination and thermoelectric power generator显示文摘To meet challenges of the global energy crisis and the freshwater resources shortage,the interfacial solarto-steam conversion(ISSC)system was developed quickly in recent years.The photothermal materials play an important role in the ISSC system.We are devoted to developing a unique photothermal material integrating multiple 3 D design philosophy both at macroscopic and microscopic levels by employing the cost-effective and widespread resources like straw,rose and coffee grounds,for carbonization as solar absorbers.The biomass-based carbonized particles(CPs)possess three major advantages:(1)wide sizedistribution is accessible to form 3 D porous rough surface of absorber layer to enhance ability of light absorption;(2)the pristine hierarchical microstructure could absorb nearly all the incident light;(3)the intrinsic vascular bundles with pores on their lumen walls provide a rapid and omnidirectional transport for water and steam escape.A high-efficient solar steam device was fabricated based on the absorber material with its internal 3 D micro textures and external 3 D architectures.Under the illumination of 1 sun,the photothermal conversion efficiency of straw,rose and coffee CPs can reach 93.4%,92.8% and 76%,respectively.Simultaneously,a high-efficient solar thermoelectric generator(STEG)is made by coating CPs on a commercial thermoelectric generator and the maximum power of STEG can reach 538.0μW.Such scalable biomass-based photothermal materials and high-grade thermoelectric conversion capability could be applied to the water purification and the electricity production. | Hao Jiang Xuemin Geng Simin Li Hongyu Tu Jiliang Wang Lixia Bao Peng Yang Yanfen Wan | 2020 | Journal of Materials Science & Technology2020，59，24： | 1 |
| 6 | A novel method to enhance rate performance of an Al-doped LiaTisOI2 electrode by post-synthesis treatment in liquid formaldehyde at room temperature显示文摘 | Rui Cai Simin Jiang Xing Yu | 2012 | Chem Mater2012，22，9： | 1 |
| 7 | Numerical simulation of deep foundation pit dewatering and optimization of controlling land subsidence显示文摘 | Nianqing Zhou Pieter A. Vermeer Rongxiang Lou Yiqun Tang Simin Jiang | 2010 | Engineering Geology2010，，3： | 1 |
| 8 | Patulininduced oxidative DNA damage and p53 modulation in Hep G2cells显示文摘 | ZHOU Simin JIANG Liping GENG Chengyan | 2010 | Toxicon2010，55，23： | 1 |
| 9 | TRAJECTORY GENERATION AND CONTROL FOR NON-CIRCULAR CNC TURNING显示文摘A trajectory generation method which is based on NURBS interpolation is studied to improve the fitting accuracy and smoothness of non-circular cross section and obtain higher accuracy of the final non-circular profile control.After using the NURBS,the most optimized and smooth trajectory for the linear actuator can be obtained.For the purpose of machining the non-circular cross section by CNC turning,the fast response linear actuator has been used.The control algorithm which is compound control of proportional-integral-differential(PID)and iterative learning control has been developed for non-circular profile generation.By using the NURBS interpolation and the compound control of PID and iterative learning control,the final motion accuracy of linear actuator has been improved,therefore,the machining accuracy of the non-circular turning can be improved. | JIANG Simin YAN Han WANG Xiankui | 2008 | Chinese Journal of Mechanical Engineering2008，21，5： | 1 |
| 10 | A novel method to enhance rate performance of an Al-doped Li4 Ti,: ()12 elec- trode by post-synthesis treatment in liquid formaldehyde at room temperature 显示文摘 | Cai Rui Jiang Simin Yu Xing | 2012 | Chem Mater2012，22，9： | 1 |
| 11 | Intensifying uneven charge distribution via geometric distortion engineering in atomically dispersed M-N_(x)/S sites for efficient oxygen electroreduction显示文摘Fine regulation of geometric structures has great promise to acquire specific electronic structures and improve the catalytic performance of single-atom catalysts,yet it remains a challenge.Herein,a novel seed encapsulation–decomposition strategy is proposed for the geometric distortion engineering and thermal atomization of a series of Cu-N_(x)/S moieties anchored on carbon supports.During pyrolysis,seeds(Cu^(2+),CuO,or Cu_(7)S_(4) nanoparticles)confined in metal organic framework can accommodate single Cu atoms with Cu–N or Cu–S coordination bonds and simultaneously induce C–S or C–N bond cleavage in the second coordination shell of Cu centers,which are identified to manipulate the distortion degree of Cu-N_(x)/S moieties.The severely distorted Cu-N3S molecular structure endows the resultant catalyst with excellent oxygen reduction reaction activity(E_(1/2)=0.885 V)and zinc-air battery performance(peak power density of 210 mW·cm^(−2)),outperforming the asymmetrical and symmetrical Cu-N4 structures.A combined experimental and theoretical study reveals that the geometric distortion of Cu-N_(x)/S moieties creates uneven charge distribution by a unique topological correlation effect,which increases the metal charge and shifts the d-band center toward the Fermi level,thereby optimizing the inter-mediate adsorption energy. | Zhuting Zhang Simin Yang Rui Jiang Tian Sheng Chunfeng Shi Yueguang Chen Leyu Wang | 2022 | Nano Research2022，15，10： | 0 |
| 12 | Deubiquitinase ubiquitin-specific protease 3 (USP3) inhibits HIV-1 replication via promoting APOBEC3G (A3G) expression in both enzyme activity-dependent and -independent manners显示文摘Background: Ubiquitination plays an essential role in many biological processes, including viral infection, and can be reversed by deubiquitinating enzymes (DUBs). Although some studies discovered that DUBs inhibit or enhance viral infection by various mechanisms, there is lack of information on the role of DUBs in virus regulation, which needs to be further investigated.Methods: Immunoblotting, real-time polymerase chain reaction,in vivo/in vitro deubiquitination, protein immunoprecipitation, immunofluorescence, and co-localization biological techniques were employed to examine the effect of ubiquitin-specific protease 3 (USP3) on APOBEC3G (A3G) stability and human immunodeficiency virus (HIV) replication. To analyse the relationship between USP3 and HIV disease progression, we recruited 20 HIV-infected patients to detect the levels of USP3 and A3G in peripheral blood and analysed their correlation with CD4^(+) T-cell counts. Correlation was estimated by Pearson correlation coefficients (for parametric data).Results: The results demonstrated that USP3 specifically inhibits HIV-1 replication in an A3G-dependent manner. Further investigation found that USP3 stabilized 90% to 95% of A3G expression by deubiquitinating Vif-mediated polyubiquitination and blocking its degradation in an enzyme-dependent manner. It also enhances the A3G messenger RNA (mRNA) level by binding to A3G mRNA and stabilizing it in an enzyme-independent manner. Moreover, USP3 expression was positively correlated with A3G expression (r= 0.5110) and CD4^(+) T-cell counts (r= 0.5083) in HIV-1-infected patients.Conclusions: USP3 restricts HIV-1 viral infections by increasing the expression of the antiviral factor A3G. Therefore, USP3 may be an important target for drug development and serve as a novel therapeutic strategy against viral infections. | Simin Zhao Baisong Zheng Liuli Wang Wenzhe Cui Chunlai Jiang Zhuo Li Wenying Gao Wenyan Zhang | 2022 | Chinese Medical Journal2022，135，22： | 0 |
| 13 | Genetic dissection and validation of a major QTL for grain weight on chromosome 3B in bread wheat(Triticum aestivum L.)显示文摘Grain weight is one of the key components of wheat(Triticum aestivum L.)yield.Genetic manipulation of grain weight is an efficient approach for improving yield potential in breeding programs.A recombinant inbred line(RIL)population derived from a cross between W7268 and Chuanyu 12(CY12)was employed to detect quantitative trait loci(QTLs)for thousand-grain weight(TGW),grain length(GL),grain width(GW),and the ratio of grain length to width(GLW)in six environments.Seven major QTLs,QGl.cib-2D,QGw.cib-2D,QGw.cib-3B,QGw.cib-4B.1,QGlw.cib-2D.1,QTgw.cib-2D.1 and QTgw.cib-3B.1,were consistently identified in at least four environments and the best linear unbiased estimation(BLUE)datasets,and they explained 2.61 to 34.85%of the phenotypic variance.Significant interactions were detected between the two major TGW QTLs and three major GW loci.In addition,QTgw.cib-3B.1 and QGw.cib-3B were co-located,and the improved TGW at this locus was contributed by GW.Unlike other loci,QTgw.cib-3B.1/QGw.cib-3B had no effect on grain number per spike(GNS).They were further validated in advanced lines using Kompetitive Allele Specific PCR(KASP)markers,and a comparison analysis indicated that QTgw.cib-3B.1/QGw.cib-3B is likely a novel locus.Six haplotypes were identified in the region of this QTL and their distribution frequencies varied between the landraces and cultivars.According to gene annotation,spatial expression patterns,ortholog analysis and sequence variation,the candidate gene of QTgw.cib-3B.1/QGw.cib-3B was predicted.Collectively,the major QTLs and KASP markers reported here provide valuable information for elucidating the genetic architecture of grain weight and for molecular marker-assisted breeding in grain yield improvement. | Simin Liao Zhibin Xu Xiaoli Fan Qiang Zhou Xiaofeng Liu Cheng Jiang Liangen Chen Dian Lin Bo Feng Tao Wang | 2024 | Journal of Integrative Agriculture2024，23，1： | 0 |
| 14 | Growth and High Reflectivity Self-Pumped Phase Conjugate of Cu-Doped KNSBN Crystal显示文摘The Cu-doped'KNSBN crystals have been grown.The self-pumped phase conjugate mirrors of Cu-doped KNSBN crystals have been demonstrated.The phase conjugate reflectivity reaches as high as 68% for the crystal with 0.04 wt.%Cu-doped.The phase conjugate reflectivity and its response time were also measured as a function of the argon-ion laser wavelengths. | SUN Daliang SONG Yongyuan JIANG Quanzhong CHEN Huanchu XU Jingjun WU Yuanqing LIU Simin ZHANG Guangyin | 1992 | Chinese Physics Letters1992，9，3： | 0 |
| 15 | Identification and validation of major QTL for grain size and weight in bread wheat(Triticum aestivum L.)显示文摘Grain size and weight are key components of wheat yield.Exploitation of major underlying quantitative trait loci(QTL)can improve yield potential in wheat breeding.A recombinant inbred line(RIL)population was constructed to detect QTL for thousand-grain weight(TGW),grain length(GL)and grain width(GW)across eight environments.Genomic regions associated with grain size and grain weight were identified on chromosomes 4A and 6A using bulked segregant exome sequencing(BSE-Seq)analysis.After constructing genetic maps,six major QTL detected in at least four individual environments and in best linear unbiased estimator(BLUE)datasets,explained 7.50%-23.45%of the phenotypic variation.Except for QGl.cib-4A,the other five QTL were co-located in two regions,namely QTgw/Gw.cib-4A and QTgw/Gw/Gl.cib-6A.Interactions of these QTL were analyzed.Unlike QTgw/Gw/Gl.cib-6A,QTgw/Gw.cib-4A and QGl.cib-4A had no effect on grain number per spike(GNS).The QTL were validated in a second cross using Kompetitive Allele Specific PCR(KASP)markers.Since QTgw/Gw.cib-4A was probably a novel locus,it and the KASP markers reported here can be used in wheat breeding.TraesCS4A03G0191200 was predicted to be potential candidate gene for QTgw/Gw.cib-4A based on the sequence differences,spatiotemporal expression patterns,gene annotation and haplotype analysis.Our findings will be useful for fine mapping and for marker-assisted selection in wheat grain yield improvement. | Guangsi Ji Zhibin Xu Xiaoli Fan Qiang Zhou Liangen Chen Qin Yu Simin Liao Cheng Jiang Bo Feng Tao Wang | 2023 | The Crop Journal2023，11，2： | 0 |
| 16 | 3D Joint inversion of gravity and gravity tensor data显示文摘The processing and interpretation of gravity and gradient data plays an important role in geophysics.The cross gradient joint inversion is usually used for achieving structure coupling of multiple geophysical models. In order to realize the coupling of gravity and gravity tensor data,the authors analyzed each component.The results show that different types of data contain different direction information,and derived the joint inversion based on cross gradient function and applied it to model data. The theoretical model results show that the cross gradient method can reduce the multi solution and significantly improve the resolution of the inversion.The method was also applied to inverse the gravity tensor data in Vinton salt dome,showing that this method can get higher resolution results than the separate linear inversion,and be closer to the real density from drilling data. | ZHAO Simin GAO Xiuhe QIAO Zhongkun JIANG Dandan ZHOU Fei LIN Song | 2018 | Global Geology2018，21，1： | 0 |
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