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| 1 | Microstructure and shear strength of the brazed joint of Ti(C,N)-based cermet to steel显示文摘Firm joins were obtained between Ti(C,N)-based cermet and steel with Ag-Cu-Zn-Ni filler metal by vacuum brazing. The effects of technological parameters such as brazing temperature, holding time, and filler thickness on the shear strength of the joints were investigated. The microstructure of welded area and the reaction products of the filler metal were examined by scanning electron microscopy (SEM), metallographic microscope (OM), energy-dispersive X-ray analysis (EDS), and X-ray diffraction (XRD). The brazing temperature of 870°C, holding time of 15 min, and filler thickness of 0.4 mm are a set of optimum technological parameters, under which the maximum shear strength of the joints, 176.5 MPa, is achieved. The results of microstructure show that the wettability of the filler metal on Ti(C,N)-based cermet and steel is well. A mutual solution layer and a diffusion layer exist between the welding base materials and the filler metal. | YE Dameng, XIONG Weihao, Zhang Xiuhai, QU Jun, and YAO Zhenghua State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, China | 2010 | Rare Metals2010，29，1： | 7 |
| 2 | Mutation analyses of integrated HBV genome in hepatitis B patients显示文摘Little has been learnt in the last 30 years about detection of HBV genome as well as its mutation analysis between hepatitis B fathers (HBF) and their children. In this study, we used nest polymerase chain reaction (PCR), fluorescence in situ hybridization (FISH), and DNA sequencing analysis, to examine the integrated HBV genome in paraffin-embedded testis tissues, which were taken as samples from HBF, and in peripheral blood mononuclear cells (PBMC) from 74 cases of HBFs and their children who were born after their fathers’ HBV infection (caHBF). We found that HBV DNA existed in testis tissues, mainly in the basilar parts of the seminiferous tubules, and also in PBMC of HBF. It was also documented that there were point mutations of poly-loci, insertions and deletions of nucleotides in integrated HBV genomes, and the types of gene mutations in the HBFs were similar to those in caHBF. This study addresses the major types of gene mutations in integrated HBV genome in human patients and also presents reliable evidence of possible genetic transmission of hepatitis B. | Peilin Wang Xiuhai Wang Shuying Cong Hongming Ma Xuecheng Zhang | 2008 | Journal of Genetics and Genomics2008，35，2： | 6 |
| 3 | Synthesis, Nematicidal Activity, and 3D-QSAR of Novel 1,3,4-Oxadiazole/ Thiadiazole Thioether Derivatives显示文摘 | Jixiang Chen Xiuhai Gan Chongfen Yi Shaobo Wang Yuyuan Yang Fangcheng He Deyu Hu Baoan Song | 2018 | Chinese Journal of Chemistry2018，36，10： | 5 |
| 4 | Effect of bonding process on the properties of isotropic epoxy resin-bonded Nd-Fe-B magnets显示文摘Bonded NdFeB magnets were prepared by compression molding. The effect of preparation technology on their magnetic and mechanical properties was studied through the analysis of density, Br, Hcj, (BH)max, bending strength, and compressive strength of the bonded magnets. The results showed that the magnetic properties decreased with increasing binder content, whereas the mechanical properties increased. Br and (BH)max increased with rising pressure, whereas Hcj decreased. For a fixed mass fraction of the binder, the optimal pressure was 620 MPa and the best thermosetting temperature was 160°C. These conditions made the bonded magnets have the optimal mechanical properties. Scanning electron microscopy (SEM) analyses of the fracture surfaces indicated that the epoxy resin bonded magnets exhibited brittle behavior. | ZHANG Xiuhai XIONG Weihao | 2009 | Rare Metals2009，28，3： | 3 |
| 5 | Evaluating alternative hypotheses behind biodiversity and multifunctionality relationships in the forests of Northeastern China显示文摘Background:The importance of biodiversity in maintaining multiple ecosystem functions has been widely accepted.However,the specific mechanisms affecting biodiversity and ecosystem multifunctionality(BEMF)relationships in forests are largely unknown.This is particularly evident for the macroscale of a large forested landscape.Methods:Based on 412 one-tenth hectare field plots distributed over forested areas across northeastern China,we evaluated three alternative hypotheses explaining the relationships between BEMF,namely:niche complementarity,mass ratio,and vegetation quantity effect.We used Rao's quadratic entropy and community weighted mean trait values to quantify forest“biodiversity”.These two variables represent two complementary aspects of functional properties,which are in line with niche complementary and mass ratio effects,respectively.Results:Ecosystem multifunctionality was negatively associated with the community weighted mean values of acquisitive traits(a proxy of mass ratio effect).Rao's quadratic entropy(a proxy of niche complementarity)had no relationship with ecosystem multifunctionality.Higher stand biomass greatly increased ecosystem multifunctionality,which is in line with the vegetation quantity effect.Our results confirm that in the temperate forests of northeastern China,the relationship of BEMF was primarily affected by vegetation quantity,followed by mass ratio effects.Conclusions:The results of this study contribute to a better understanding of the main drivers of ecosystem multifunctionality in forest ecosystems.The results of this study provide additional evidence to support the vegetation quantity and mass ratio hypotheses in forest ecosystems. | Qingmin Yue Minhui Hao Yan Geng Xuerui Wang Klaus von Gadow Chunyu Zhang Xiuhai Zhao Lushuang Gao | 2022 | Forest Ecosystems2022，9，3： | 1 |
| 6 | Seed dispersal and seedling recruitment of trees at different successional stages in a temperate forest in northeastern China显示文摘spatial distribution of adult trees in a forest community is determined by patterns of both seed dispersal and seedling recruitment.the objectives of our study were to understand the processes of seed dispersal and seedling recruitment of dominant tree species in a temperate forest of northeastern China and to identify the factors constraining seed dispersal and seedling establishment at different stages of forest succession.Methods During three summer and autumn sessions between 2006 and 2008,altogether 113080 seeds from 22 different tree species were collected in three large field plots representing different for-est types in the Changbai mountain region of northeastern China.the spatial distribution of seed abundance was analyzed using a syrjala test.regeneration success of nine major tree species was assessed using variables defining‘limitations’in‘seeds’and‘seed-ling establishment’.Important Findings We found that seed production fluctuated between years and varied greatly with forest types.Four tree species,Acer spp.,Fraxinus man-dshurica,Tilia amurensis and Betula spp.,had the greatest seed pro-duction and the widest range of seed dispersal,whereas Quercus mongolica showed the most sustained seed production pattern.the spatial patterns of seed abundance differed significantly among forest types and years.the tree species investigated in this study differed in the degree of seed limitation,as well as in limitation of seedling establishment.there were both negative and positive correlations between seed density and seedling density,depending on site and parental tree density.seeds of 16 tree species were found in the Populus davidiana-Betula platyphylla forest(PbF)plot,11 in the conifer and broad-leaved mixed forest(CbF)plot but only 8 in the broad-leaved-Korean pine mixed forest(bKF)plot.the number of seed-contributing species was not only greater in the secondary forests(CbF and PbF plots)than in the primary forest(bKF plot)but was also more variable during the 3 years of assessment.results from the correlations between seed density and seedling occurrence and that between parental tree density or seed weight and dispersal limitation confirm our intuitive expectations,i.e.heavy seeds had greater dispersal limitation but higher establishment success than light seeds. | Lie Chen Lei Wang Yeerjiang Baiketuerhan Chunyu Zhang Xiuhai Zhao Klaus von Gadow | 2014 | Journal of Plant Ecology2014，7，4： | 1 |
| 7 | Mutations of sodium channel alpha+-subunit genes in Chinese patients with normokalemic periodic paralysis显示文摘 | Xiuhai G Weiping W Ke Z | 2008 | Cell Mol Neurobiol2008，28，： | 1 |
| 8 | Cloning and characterization of maize ZmSPK1, a homologue to nonfermentingl-related protein kinase2 显示文摘 | Zou Huawein Zhang Xiuhai Zhao Jiuran | 2006 | African Journal of Biotechnology2006，5，： | 1 |
| 9 | Structural diversity of forest communities on Baihuashan Mountain, Beijing显示文摘 | Jingming Zheng Xiuhai Zhao Chunyu Zhang | 2008 | Frontiers of Forestry in China2008，，2： | 1 |
| 10 | Characterization of nucleolar organizerregions of twelve species of Chinese cyprinid fishes显示文摘 | Ren Xiuhai Yu Xianjue | 1993 | Caryologia1993，46，： | 1 |
| 11 | The heterogeneities ofheterochromatins and NORs in the genomes of chinese cyprinidfishes显示文摘 | Ren Xiuhai Cui Jianxun Yu Qixing | 1991 | Cytologia1991，56，： | 1 |
| 12 | Mutations of sodium channel al- pha-subunit genes in Chinese patients with normokalemic periodic paralysis 显示文摘 | Xiuhai G Weiping W Ke Z | 2008 | Cell Mol Neurobio12008，28，5： | 1 |
| 13 | Systolic Blood Pressure and Mortality Among Older Community-Dwelling Adults With CKD显示文摘 | Jessica W. Weiss Eric S. Johnson Amanda Petrik David H. Smith Xiuhai Yang Micah L. Thorp | 2010 | American Journal of Kidney Diseases2010，，6： | 1 |
| 14 | Design, Synthesis, and Antiviral Activity of Novel Chalcone Derivatives Containing a Purine Moiety显示文摘 | Xiuhai Gan Yanjiao Wang Deyu Hu Baoan Song | 2017 | Chinese Journal of Chemistry2017，35，5： | 1 |
| 15 | Nucleic acids analysis显示文摘Nucleic acids are natural biopolymers of nucleotides that store, encode, transmit and express genetic information, which play central roles in diverse cellular events and diseases in living things. The analysis of nucleic acids and nucleic acids-based analysis have been widely applied in biological studies, clinical diagnosis, environmental analysis, food safety and forensic analysis.During the past decades, the field of nucleic acids analysis has been rapidly advancing with many technological breakthroughs.In this review, we focus on the methods developed for analyzing nucleic acids, nucleic acids-based analysis, device for nucleic acids analysis, and applications of nucleic acids analysis. The representative strategies for the development of new nucleic acids analysis in this field are summarized, and key advantages and possible limitations are discussed. Finally, a brief perspective on existing challenges and further research development is provided. | Yongxi Zhao Xiaolei Zuo Qian Li Feng Chen Yan-Ru Chen Jinqi Deng Da Han Changlong Hao Fujian Huang Yanyi Huang Guoliang Ke Hua Kuang Fan Li Jiang Li Min Li Na Li Zhenyu Lin Dingbin Liu Juewen Liu Libing Liu Xiaoguo Liu Chunhua Lu Fang Luo Xiuhai Mao Jiashu Sun Bo Tang Fei Wang Jianbin Wang Lihua Wang Shu Wang Lingling Wu Zai-Sheng Wu Fan Xia Chuanlai Xu Yang Yang Bi-Feng Yuan Quan Yuan Chao Zhang Zhi Zhu Chaoyong Yang Xiao-Bing Zhang Huanghao Yang Weihong Tan Chunhai Fan | 2021 | Science China Chemistry2021，64，2： | 1 |
| 16 | Effect of Preparations of Bamboo Vinegar and Copper Sulfate on Green Algae and Tobacco Seedling Growth显示文摘To provide theoretical and technical basis for the application of preparations of bamboo vinegar and copper sulfate in the prevention of green algae in floating system for tobacco seeding,the soaking and spraying methods were employed to study the effect of different concentrations of preparations of bamboo vinegar and copper sulfate on green algae and tobacco seedling growth. The results showed that the preparations of bamboo vinegar and copper sulfate of different concentrations played a strong role in inhibiting green algae growth and had better effect than copper sulfate. Spraying 1∶ 200 preparations of bamboo vinegar and copper sulfate could significantly promote tobacco seedling growth,and the leaf fresh weight increased by 15. 80% compared with CK,with significant difference; spraying 1∶ 50 preparations was not conducive to tobacco seedling growth. It was recommended to spray 1∶ 200 preparations of bamboo vinegar and copper sulfate in floating system for tobacco seeding,which could promote tobacco seedling growth and reduce green algae to varying degrees. | Tingqing WANG Lingjie XU Qianhua YUAN Xiuhai ZHANG Weiqian ZHONG Kun QIU Chuanren MA | 2017 | Asian Agricultural Research2017，9，6： | 1 |
| 17 | Development and Application of an in Situ Penetrator for Rapid Strength Testing of Submarine Sediment显示文摘In marine engineering, the strength of a submarine sediment is an indispensable parameter for assessment of construction. In this study, a free-fall cone penetrator named IPen was developed to realize a rapid and efficient measurement of sediment strength. The equipment is characterized by modular design and self-contained data acquisition. It is equipped with an acceleration sensor, a water pressure sensor, and a piezocone penetration test(CPTu) probe. It is designed to be released from near seabed surface with a releaser and then fall freely to provide a higher penetration velocity. Its maximum working depth is approximately 2500 m and maximum penetration depth is approximately 3 m. To derive the correlation between penetration resistance and sediment strength, a calibrator was devised to determine the penetration-rate factor. In addition, the factor applicable to in situ test points was determined in laboratory experiments. In June 2016, the IPen was tested in situ in the South Yellow Sea, China, during a shared voyage funded by the National Science Foundation. Meanwhile, undisturbed column samples were collected for laboratory tests. Based on the in situ test results, it was demonstrated that the IPen could accurately record the working states of various sensors during the freely falling course. IPen test results reliably reflected the sediment strength at all the testing points when compared with laboratory calibration tests, in situ vane tests and penetration tests, laboratory penetration tests, and unconsolidated and undrained triaxial compression tests. | ZHANG Minsheng WANG Zhenhao WANG Xiuhai WEN Mingzheng HONG Bo | 2019 | Journal of Ocean University of China2019，18，2： | 1 |
| 18 | Research of warm compaction technology on nylon bonded Nd-Fe-B magnets显示文摘Warm compaction and room temperature compaction were applied to prepare bonded Nd-Fe-B magnets. The results indicated that the density of magnet was determined by the compaction pressure and warm compaction temperature, whereas, the thermosetting temperature could hardly affect the density of magnet. The mechanical properties of magnets were the best when the thermosetting temperature was 200 ℃. The Br, Hcb, and (BH)max of warm compaction magnet were higher than those of room compaction. When the warm compaction temperature and thermosetting temperature were invariable, the density of magnet increased with the increase of compaction pressure, which resulted in the increase of Br, Hcb, and (BH)max of magnet and the decrease of Hcj of magnet. When the warm compaction temperature and compaction pressure were invariable, the magnetic properties of magnets decreased with the increase of thermosetting temperature. The magnetic properties of warm compaction molding magnets were better than those of injection molding magnets. | Xiuhai ZHANG Weihao XIONG Dameng YE Jun QU Zhenhua YAO | 2009 | Acta Metallurgica Sinica(English Letters)2009，22，3： | 1 |
| 19 | RESEARCH ON THE PACKING ALGORITHM FOR ANTI-SEU OF FPGA BASED ON TRIPLE MODULAR REDUNDANCY AND THE NUMBERS OF FAN-OUTS OF THE NET显示文摘Static Random Access Memory(SRAM) based Field Programmable Gate Array(FPGA) is widely applied in the field of aerospace, whose anti-SEU(Single Event Upset) capability becomes more and more important. To improve anti-FPGA SEU capability, the registers of the circuit netlist are tripled and divided into three categories in this study. By the packing algorithm, the registers of triple modular redundancy are loaded into different configurable logic block. At the same time, the packing algorithm considers the effect of large fan-out nets. The experimental results show that the algorithm successfully realize the packing of the register of Triple Modular Redundancy(TMR). Comparing with Timing Versatile PACKing(TVPACK), the algorithm in this study is able to obtain a 11% reduction of the number of the nets in critical path, and a 12% reduction of the time delay in critical path on average when TMR is not considered. Especially, some critical path delay of circuit can be improved about 33%. | Cui Xiuhai Yang Haigang Peng Yu Peng Xiyuan | 2014 | Journal of Electronics(China)2014，31，4： | 0 |
| 20 | Research on Corrosion Effect of Sulfate Ions on Concrete Under Wetting-Drying Cycle显示文摘Saline soil is widely distributed in the marine sediments along the coast of the world and the arid-semi-arid areas of the Middle East and Iraq,and calcium sulfate erosion has become one of the important factors affecting the durability of concrete in this area.In order to clarify the mechanism of sulfate ion damage to concrete,this paper mainly takes saline soil with high sulfate content in coastal area as well as arid-semi-arid area as the research object,and uses indoor geotechnical test,field test and numerical simulation to study the influence of different dry-wet cycle times on the unconfined compressive strength of concrete test blocks,and puts forward the relationship between the erosion arrival depth and time of sulfate ion in concrete,so as to predict the long-term erosion depth by using the erosion depth of sulfate ion in concrete in short time.The results show that the shorter the erosion time when the erosion reaches a certain depth,and the larger the erosion reaches when the erosion time is the same,the faster the erosion reaches the depth with the increase of erosion time.Compared with rectangular section concrete,circular section concrete penetrates faster.The results of this study can provide a reference for the durability design of concrete in saline soil sites containing sulfate. | WANG Xiuhai TIAN Zhuangcai ZHANG Yanan SU Xiuting LIU Hongjun LIU Tao | 2022 | Journal of Ocean University of China2022，21，1： | 0 |
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