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| 1 | Dynamic and Static Recrystallization Behavior of Low Carbon High Niobium Microalloyed Steel显示文摘The recrystallization behavior of a low carbon high niobium microalloyed steel was investigated using continuous and interrupted hot compression tests.The results showed that the initiation of dynamic recrystallization(DRX)could be detected from inflection in the plot of the strain hardening rate against stress regardless of the stress peak appearance.According to the Zener-Hollomon parameter equation,the activity energy of DRX(Qdef)was obtained and a new modified expression calculating Qdef was proposed in consideration of the chemical composition of experimental steel.Applying the 2% offset method,the static softening fraction was determined.The graphic representation of the softening fraction vs interruption time gave the information about the non-static recrystallization temperature(about 1000 ℃)and the relationship of precipitation-time-temperature.Static recrystallization kinetics followed the Avrami's law at high deformation temperature,and different values of the exponent m were given to illustrate the effect of niobium element on static recrystallization at different deformation temperatures. | LAN Liang yun QIU Chun lin ZHAO De-wen GAO Xiu hua DU Lin-xiu | 2011 | Journal of Iron and Steel Research(International)2011，18，1： | 16 |
| 2 | A heavy mineral viewpoint on sediment provenance and environment in the Qiongdongnan Basin显示文摘Based on heavy mineral data in core samples from eleven drillings, supplemented by paleontological, element geochemical and seismic data, the evolution of sediment provenance and environment in the Qiongdongnan Basin(QDNB) was analysed. The results show that the basement in the QDNB was predominantly composed of terrigenous sediments. Since the Oligocene the QDNB has gradually undergone transgressions and evolution processes in sedimentary environment from terrestrial-marine transitional to littoral-neritic, neritic, and bathyal roughly. The water depth showed a gradually increasing trend and was generally greater in the southern region than that in the northern region in the same time. With changes in sedimentary environment, provenances of the strata(from the Yacheng Formation to the Yinggehai Formation) showed principal characteristics of multisources, evolving from autochthonous source, short source to distant source step by step. During the Early Oligocene, the sediments were mainly proximal basaltic pyroclastic source and adjacent terrigenous clastic source, afterwards were becoming distant terrigenous clastic sources, including Hainan Island on the north,Yongle Uplift on the south, Shenhu Uplift on the northeast, the Red River System on the northwest and Indochina Peninsula on the southwest, or even a wider region. The Hainan Island provenance began to develop during the Early Oligocene and has become a main provenance in the QDNB since the Middle Miocene. The provenances from Yongle Uplift and Shenhu Uplift most developed from the Late Oligocene to the Early Miocene and gradually subsided during the Middle Miocene. During the Late Miocene, as a main source of sediments filled in the central canyon, the Red River System provenance added to the QDNB massively, whose impact terminated at the end of the Pliocene. The western Yinggehai Basin(YGHB) provenance derived from Indochina Peninsula had developed from the Pliocene on to the Pleistocene. In addition, the material contribution of marine authigenous source to the basin(especially to the southern region) could not be ignored. | LIU Xiaofeng ZHANG Daojun ZHAI Shikui LIU Xinyu CHEN Hongyan LUO Wei LI Na XIU Chun | 2015 | Acta Oceanologica Sinica2015，34，4： | 10 |
| 3 | Bartonella Species Detected in the Plateau Pikas(Ochotona curzoiae) from Qinghai Plateau in China显示文摘Bartonella 种类能感染许多哺乳动物的主人并且在人引起许多疾病,但是在那里有不是在 Ochotonidae 的 Bartonella 感染的报告。这是第一研究在 Qinghai 高原在高原一种短耳野兔检测 Bartonella,提供为对在这个区域的人的 Bartonella 感染的风险评价的基线数据。我们与 18.99% 的积极的率在 Qinghai 的 Binggou 和 Maixiu 区域从 79 只一种短耳野兔获得了 15 Bartonella 紧张。基于基因定序的 Bartonella 柠檬酸盐 synthase (gltA ) 的种系发生的分析,大多数紧张是仔细与 B 有关。taylorii (3/15 ) 和 B。grahamii (12/15 ) 。后者是在人的病原的紧张。我们的结果建议相应预防和控制策略应该在 Qinghai 省被考虑。 | RAO Hua Xiang YU Juan GUO Peng MA Yong Cheng LIU Qi Yong JIAO Ming MA Zhong Wen GE Hua WANG Chun Xiang SONG Xiu Ping SHI Yan LI Dong Mei | 2015 | Biomedical and Environmental Sciences2015，28，9： | 8 |
| 4 | Decreased Average Albumin-to-Globulin Ratio During Radiotherapy Worsens the Prognosis of Esophageal Squamous Cell Carcinoma:Implications for Nutritional Management显示文摘Objective Malnutrition and cachexia are common in esophageal squamous cell carcinoma(ESCC)patients undergoing radiotherapy.This study evaluated how malnutrition-and cachexia-related indicators,including the albumin-to-globulin ratio(AGR),and their changes during radiotherapy predict the treatment outcomes.Methods We reviewed a total of 172 ESCC patients receiving radiotherapy(as a primary cohort)and performed a Cox regression analysis on potential prognostic factors,including the AGR,as well as the TNM stage and concomitant chemotherapy.A subsequent receiver operating characteristics(ROC)curve and Kaplan Meier survival analysis was performed for ESCC patients stratified by the average AGR cut-off point.Results In addition to the well-documented factors(i.e.TNM stage and concomitant chemotherapy),the average AGR was a significant prognostic factor for ESCC patients receiving radiotherapy.By plotting the ROC curve of the average AGR with regard to the ESCC prognosis,we obtained cut-off points for the overall patients(cut-off point:1.5,AUC:0.636),for patients with stageⅡ/Ⅲdisease(cut-off point:1.5,AUC:0.611),and for patients with stageⅣdisease(cut-off point:1.84,AUC:0.900).The ESCC patients with higher average AGR had a significantly more favorable OS compared with those with a lower average AGR.Notably,ESCC patients who had an increasingΔAGR during radiotherapy had a considerably more favorable OS compared with those with a decreasingΔAGR.All of these findings were reproducible in the validation cohort.Conclusion A lower average AGR is indicative of a poorer prognosis for ESCC patients following radiotherapy.Improving the nutritional status and preventing or ameliorating cachexia might contribute to improving the prognosis of ESCC patients. | Fen Cai Xiu Lian Zhang Xiao Ling Wu Ting Ting Zhuang Lei Huang Yi Fei Tu Yuan Yuan Lu Min Xia Jiang Qing Ying Zhang Yan Lin Chang Chun Ma | 2021 | Journal of Nutritional Oncology2021，6，2： | 8 |
| 5 | Geochemical characteristics and their significances of rare-earth elements in deep-water well core at the Lingnan Low Uplift Area of the Qiongdongnan Basin显示文摘A geochemical analysis of rare-earth elements(REEs) in 97 samples collected from the core of deep-water Well LS-A located at the Lingnan Low Uplift Area of the Qiongdongnan Basin is conducted, with the purpose of revealing the changes of sedimentary source and environment in the study region since Oligocene and evaluating the response of geochemical characteristics of REEs to the tectonic evolution. In the core samples, both ∑REE and ∑LREE(LREE is short for light-group REEs) fluctuate in a relatively wide range, while ∑HREE(HREE is short for heavy-group REEs) maintains a relatively stable level. With the stratigraphic chronology becoming newer, both ∑REE and ∑LREE show a gradually rising trend overall. The ∑REE of the core is relatively high from the bottom of Yacheng Formation(at a well depth of 4 207 m) to the top of Ledong Formation, and the REEs show partitioning characteristics of the enrichment of LREE, the stable content of HREE, and the negative anomaly of Eu to varying degrees. Overall the geochemical characteristics of REEs are relatively approximate to those of China's neritic sediments and loess, with significant 'continental orientation'. The ∑REE of the core is relatively low in the lower part of Yacheng Formation(at a well depth of 4 207–4 330 m), as shown by the REEs partitioning characteristics of the depletion of LREE, the relative enrichment of HREE, and the positive anomaly of Eu; the geochemical characteristics of REEs are approximate to those of oceanic crust and basalt overall, indicating that the provenance is primarily composed of volcanic eruption matters. As shown by the analyses based on sequence stratigraphy and mineralogy, the provenance in study region in the early Oligocene mainly resulted from the volcanic materials of the peripheral uplift areas; the continental margin materials from the north contributed only insignificantly; the provenance developed to a certain extent in the late Oligocene. Since the Miocene, the provenance has ceaselessly expanded from proximal to distal realm, embodying a characteristic of multi-source sedimentation. In the core strata with 31.5, 28.4, 25.5, 23, and 16 Ma from today, the geochemical parameters of REEs and Th/Sc ratio have significant saltation, embodying the tectonic movement events in the evolution of the Qiongdongnan Basin. In the tectonic evolution history of the South China Sea, the South China Sea Movement(34–25 Ma BP, early expansion of the South China Sea), Baiyun Movement(23 Ma BP), late expansion movement(23.5–16.5 Ma BP), expansion-settlement transition, and other important events are all clearly recorded by the geochemical characteristics of REEs in the core. | SUN Zhipeng ZHAI Shikui XIU Chun LIU Xinyu ZONG Tong LUO Wei LIU Xiaofeng CHEN Kui LI Na | 2014 | Acta Oceanologica Sinica2014，33，12： | 7 |
| 6 | Quality control and evaluation of human immunodeficiency virus antibody assays used for screening donated blood in China显示文摘During 2004, a total of 124 batches of HIV antibody ELISAs from domestic and overseas manufacturers, comprising approximately 60 million tests, were tested for quality and released for screening blood in China. The inter- and intra-batch variation, specificity, and sensitivity were evaluated using a laboratory panel and clinical samples. The inter-batch variation was less than 15% and only 2 of 12 assays had intra-batch variation of less than 20% for 4 dilutions of a control specimen. 257 samples confirmed positive for HIV antibody and 4826 negative samples from different regions in China were used to evaluate the sensitivity and specificity of the assays. The results showed that the sensitivity is in the range from 93.7% to 100% for assays sampled directly from the manufacturers, and 91. 4%-99. 6% for those retrieved from the consumers; the specificity was in the range from 97.88% to 99.97% . The testing environment may vary in different regions of China. Therefore, manufacturers should provide robust assays to satisfy the requirements of these diverse environments, and especially reduce the intra-assay variation and improve the stability of the kits. | You CHUN WANG XIU HUA LI AI JING SONG CHUN TAO ZHANG SI HONG XU FENG ZHANG HONG ZHANG YIN | 2006 | Journal of Microbiology and Immunology2006，4，1： | 4 |
| 7 | Characteristics of Long-term Nonprogressors and Viremia Controllers Infected with HIV-1 via Contaminated Blood Donations or Transfusions Conducted 20 Years Earlier显示文摘To characterize long‐term nonprogressors(LTNPs)and viremia controllers(VCs),infected with HIV‐1 through contaminated blood donation or transfusion between 1992 and 1996 in Henan,China.LTNPs and VCs were defined by CD4+T lymphocyte(CD4)count and viral load(VL).Of29,294 patients infected with HIV‐1 via contaminated blood donation or transfusion that had conducted for more than 20 years,92 were LTNPs/VCs.There were 70 LTNPs(0.24%),43 | LIU Jia FAN Pan Ying XUE Xiu Juan YAN Jiang Zhou SUN Guo Qing LIU Chun Hua TIAN Sui An LI Ning SUN Ding Yong ZHU Qian WANG Zhe | 2017 | Biomedical and Environmental Sciences2017，30，12： | 3 |
| 8 | Permanence and Global Attractivity of a Discrete Semi-Ratio-Dependent Predator-Prey System with Holling Ⅳ Type Functional Response显示文摘In this paper,we investigate a discrete semi-ratio dependent predator-prey system with Holling IV type functional response.For general nonautonomous case,sufficient conditions which ensure the permanence and the global stability of the system are obtained.Meanwhile,we discuss the existence of the positive periodic solution and global stability of the system. | Xiao Hong LI Chun LU Xiu Feng DU | 2010 | Journal of Mathematical Research and Exposition2010，30，3： | 3 |
| 9 | Study on the active sites of Cu-ZSM-5 in trichloroethylene catalytic combustion with air显示文摘The catalytic activity of Cu-ZSM-5 in trichloroethylene (TCE) combustion increases with the increasing skeletal Cu amount and however decreases with the increase of surface amorphous CuO,which is detected by infrared spectroscopy (IR) and diffuse reflectance ultraviolet-visible spectroscopy (DRS-UV-vis),therefore the skeletal Cu species are concluded to be the active sites for the TCE combustion. | Cheng Hua Xu Chuan Qi Liu Yan Zhong Xiu Zhou Yang Jian Ying Liu Ying Chun Yang Zhi Xiang Ye | 2008 | Chinese Chemical Letters2008，19，11： | 2 |
| 10 | A Case-control Study of Environmental Risk Factors for Nonsyndromic Cleft of the Lip and/or Palate in Xuzhou,China显示文摘In this study,we sought to determine the association between environmental factors and nonsyndromic cleft of the lip and/or palate(NSCLP)to understand the etiology of the disease.A total of200 NSCLP cases and 327 controls were recruited at the Maternal and Child Health Hospital of Xuzhou City.We conducted face-to-face interviews with | XU Li Fang ZHOU Xiao Long WANG Qi ZHOU Ji Long LIU Ya Peng JU Qiang WANG Hui ZHANG Jin Peng WU Qing Rong LI Yi Qun XIA Yu Juan PENG Xiu ZHANG Mei Rong YU Hong Min XU Li Chun | 2015 | Biomedical and Environmental Sciences2015，28，7： | 2 |
| 11 | Immunohistochemical study of gastrin in colorectal carcinoma tissues and its adjacent mucosa显示文摘ImmunohistochemicalstudyofgastrinincolorectalcarcinomatissuesanditsadjacentmucosaJIANGChunPing,CHENYuQuan,ZHUJianWei,SHEN... | JIANG Chun Ping, CHEN Yu Quan, ZHU Jian Wei, SHEN Hong Xun and YU Xiu | 1997 | World Journal of Gastroenterology1997，3，2： | 2 |
| 12 | Combination Use of PFGE and Drug-resistant Analysis in the Epidemiological Investigation of Listeria Monocytogenes显示文摘Listeria monocytogenes is the pathogen of listeriosis and it causes severe infections like septicemia,encephalitis,and meningitis,especially in immunocompromised individuals,newborns,and pregnant women.Its wide distribution in the environment and ability to survive or even | LV Jun ZHENG Xiang Mei CHENG Shi Xiu ZHENG Hua Ying ZENG Ying Chun | 2013 | Biomedical and Environmental Sciences2013，26，4： | 2 |
| 13 | Asymptotic Approximations of Jacobi Functions and Their Zeros with Error Bounds显示文摘The study of zeros of orthogonal functions is an important topic.In this paper,byimproving the middle variable x(t),we've got a new form of asymptotic approximation,completedwith error bounds,it is constructed for the Jacobi functions _μ^((α,β))(t)(α>-1)as μ→+∞.Besides,an accurate approximation with error bounds is also constructed correspondingly for the zeros t_(μ,s) of_μ((α,β))(t)(α≥0)as μ→+∞,uniformly with respect to s=1,2,.... | Xiao Feng ZHU Xiu Chun LI | 2006 | Acta Mathematica Sinica,English Series2006，22，3： | 2 |
| 14 | Global Existence and Blow-up of Solutions for Parabolic Systems Involving Cross-Diffusions and Nonlinear Boundary Conditions显示文摘在这篇论文,我们与非线性的边界条件调查强烈联合的非线性的抛物线的系统的积极解决方案:[图形]在函数上的适当假设下面一, b , g , h , d 和 f ,我们获得解决方案可以全球性存在或由利用上面、更低的解决方案技术在有限时间骤起。 | Xiu Hui YANG Fu Cai LI Chun Hong XIE | 2005 | Acta Mathematica Sinica,English Series2005，21，4： | 1 |
| 15 | STUDIES ON THE SYNTHESIS AND BIOLOGICAL ACTIVITY OF 1-ARYLOXYACETYL-4-AROYLTHIOSEMICARBAZIDE DERIVATIVES显示文摘A series of new 1-aryloxyacetyl-4-aroylthiosemicarbazides were synthesized by means of solid-liguid phase transfer catalysis. The promoting effects of these new compounds on wheat growth were observed. | Ji Chou CHEN~* AND Tai Bao WEI Department of Chemistry, Northwest Normal University, Lanzhou, 730070 Xiu Chun WANG AND Su You YANG Department of Biology, Northwest Normal University, Lanzhou, 730070 | 1993 | Chinese Chemical Letters1993，4，1： | 1 |
| 16 | Thermal stabilities and the thermal degradation kinetics of polyimides 显示文摘 | LI Qing Li GUAN Chun Xiu ZHANG Ai Qing | 2004 | Polym Degrad Stab2004，84，： | 1 |
| 17 | Synthesis and Adsorption Properties of Chelating Resins Containing Sulfoxide and Heterocyclic Functional Groups显示文摘Several of new chelating resins containing sulfoxide and heterocyclic functional groups (3-aminopyridine and 2-mercaptobenzothiazole) based on macroporous chloromethylated polystyrene were synthesized and characterized by elemental analysis and infrared spectra. Their adsorption capacities towards Zn2+, Cu2+, Pb2+, Hg2+ and Ag+ at pH 3.0 and 6.0 were investigated in detail. It was found that the adsorption capacities of the resins containing bis[(3-pyridyl- aminoethyl)sulfoxide or (2-benzothiazolylthioethyl)sulfoxide for the above ions were higher than that on ones containing single above-mentioned groups. | Chun Nuan JI Xiu Juan ZHANG Rong Jun QU Hou CHEN Chun Hua WANG Chang Mei SUN | 2006 | Chinese Chemical Letters2006，17，10： | 1 |
| 18 | N-芳基-5-芳基-2-呋喃甲酰胺和N-5-芳基-2-呋喃甲酰基-N′-芳氧基乙酰基肼的合成及生物活性的研究显示文摘 | WANG Xi Cun * CHEN Ji Chou WANG Xiu Chun (Department of Chemistry Department of Biology Northwest Normal University Lanzhou 730070) | 1998 | 高等学校化学学报1998，，08： | 1 |
| 19 | Geochemical Characteristics of the Trace and Rare Earth Elements in Reef Carbonates from the Xisha Islands(South China Sea): Implications for Sediment Provenance and Paleoenvironment显示文摘Based on the concentrations of the trace elements,rare earth elements(REE),and Sr isotopic compositions in reef carbonates from the well‘Xike-1’reef core of the Xisha Islands,the constraints on sediment provenance and paleoenvironment were defined.Variations of the terrigenous input into the paleoseawater were traced in detail and the paleoenvironment and sediment provenance were further investigated.The results show that the HREE/LREE values in the reef carbonates are negatively associated with their Th and Al concentrations;however,their Al and Th concentrations show positive correlation.The lowest 87 Sr/86 Sr values in the reef carbonates generally coincide with the lowest values of Al,Th concentrations and the highest values of HREE/LREE.These data indicate that the HREE/LREE,Al concentrations,and Th concentrations of the reef carbonates are useful indexes for evaluating the influence of the terrigenous inputs on the seawater composition in the study area.From top to bottom,the changing process of the HREE/LREE values and Al,Th concentrations can be divided into 6 intervals;they are H1(0–89.30 m,about 0–0.11 Myr),L1(89.30–198.30 m,about 0.11–2.2 Myr),H2(198.30–374.95 m,about 2.2–5.3 Myr),D(374.95–758.40 m,about 5.3–13.6 Myr),L2(758.40–976.86 m,about 13.6–15.5 Myr),and H3(976.86–1200.00 m,about 15.5–21.5 Myr).Moreover,the changing trend of the HREE/LREE values coincides with that of the seawater δ^13C values recorded by benthonic foraminiferal skeletons from the drill core of ODP site 1148 in the South China Sea(SCS),but not with that of the seawaterδ18O values.The high uplifting rates of the Qinghai-Tibet Plateau coincide with the high Th and Al concentrations and the low HREE/LREE values in the reef carbonates.These data indicate that the main factors controlling the changes of terrigenous flux in the SCS are the tectonic activities associated with Qinghai-Tibet Plateau uplifting and the variations of uplifting rates rather than paleoclimatic changes. | BI Dongjie ZHAI Shikui ZHANG Daojun XIU Chun LIU Xinyu LIU Xiaofeng JIANG Longjie ZHANG Aibin | 2019 | Journal of Ocean University of China2019，18，6： | 1 |
| 20 | SQUAMOSTATIN-B, A NEW POLYKETIDE FROM ANNONA SQUAMOSA (ANNONACEAE)显示文摘Squamostatin-B (1), a new polyketide or acetogenin, has been isolated from Annona squamosa L. (Annonaceae). Its structure and relative atereochemistry were elucidated on the basis of the spectral analyses of 1 and its derivatives, the acetate (2) and mesitoate (3). | Jing Guang YU~*, Xiu Zhen LUO, La SUN, Chun Yu LIU Shao Liang HONGa and Li Bin MAa Institute of Medicinal Plant Development, Chinese Academy of Medical Science Beijing 100094 ~aBeijing Institute of Microchemistry, Beijing 100091 | 1993 | Chinese Chemical Letters1993，4，5： | 1 |
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