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Chemical Research in Chinese Universities 2009年第4期25卷 560-563页

作者： liu xiao-qing LI xiao-hui TENG Hu XIU Zhi-long Department of Bioscience and Biotechnology School of Environmental and Biological Science and Technology Dalian University of Technology Dalian 116024 P. R. China

Stylopeptide 1 synthesized and isolated from different sources exhibits a large activity difference in inhibitory effect on the growth of a cancer *** on the different amounts of methanol and water during synthesis,isolation and purification of the cyclic peptides,molecular dynamics(MD) was employed to simulate the conformation of stylopeptide 1 in methanol and aqueous *** comparative results show that the backbone ring was more rigid in methanol than in *** methanol,two β-turns and three hydrogen bonds were well conserved throughout the simulation,whereas no hydrogen bonds or turns were preserved in *** activity difference of stylopeptide 1 seemed to be attributed to the solvent effect on its conformation.

关键词： Cyclic peptide Methanol Water Molecular dynamics

A new trimeric furanocoumarin from Heracleum rapula

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Chinese Chemical Letters 2009年第9期20卷 1088-1090页

作者： Cun Zhang YuanYan liu Yong qing xiao Li Li Institute of Chinese Materia Medica China Academy of Traditional Chinese Medicine Beijing 100700 China

A new trimeric linear-type furanocoumarin, rapultririn A （1）, was isolated from the underground part ofHeracleum rapula. The structure of this new compound was elucidated by NMR, MS spectroscopic methods. 2009 Yon... 详细信息

关键词： Heracleum rapula Tricoumarin Rapultririn A

LIFTING FORCE ACTING ON A GATE WITH HIGH HEAD

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Journal of Hydrodynamics 2011年第3期23卷 379-383页

作者： liu xiao-qing ZHAO Lan-hao CAO Hui-ying SUN xiao-peng College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China

The hydrodynamic lifting force acting on a gate with high head is one of the key factors concerning the safety and reliability of gates. The lifting force is closely related to hydrodynamic pressure, and generally, is obtained through the model test. This work presents a method of numerical simulation based on the VOF method for the flow and FEM for the structure of a gate to investigate this kind of the lifting force. The physical model experiments were conducted about the hydrodynamic pressure and the lifting force to verify the numerical results. The comparisons of those two methods show that the maximum relative error is smaller than 11.40 % and the method presented in this paper is feasible and could be used in the designs of hydropower projects.

关键词： gate pressure high head lifting force numerical simulation physical model experiment

Synthesis, Crystal Structure and Luminescence of a Trinuclear Magnesium Coordination Polymer Based on a Triangle Flexible Carboxylic Ligand

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Chinese Journal of Structural Chemistry 2015年第8期34卷 1288-1294页

作者： WANG Rong-Ming ZHANG Ming-Hui liu xiao-qing liu xiao-Bin WANG Wen SUN Dao-Feng College of Science China University of Petroleum (East China)

A novel two-dimensional metal organic coordination compound based on flexible 1,3,5-tri（4-carboxyphenoxy）benzene （HaTCPB）, {[Mgl.5（TCPB）（DMF）（H20）]＇（DMF）}n （1）, has been prepared and structurally characterized by single-crystal X-ray diffraction, TGA, and PXRD measurements. Complex 1 crystalizes in triclinic, space group Pi with a = 10.2521（6）, b = 11.0974（7）, c = 16.1113（9） A, C33H31Mg1.5N2012, Mr = 684.06, V= 1669.46（17） A3, Z = 2, Dc = 1.361 g·cm^-3, p = 0.129 mm^-1, F（000） = 714, 3.06≤0≤25°, λ（MoKa） = 0.71073 A, T= 273（2） K, the final R = 0.0386, wR = 0.0892 and S = 1.031. X-ray diffraction analysis reveals that complex 1 possesses a two-dimensional framework constructed by trinuclear Mg SBUs and three-connected TCPB3- linker. In addition, the solid state luminescent property of complex 1 was also investigated at room temperature.

关键词： crystal structure, two-dimensional framework, fluorescence, magnesium

Cultivar selection can increase yield potential and resource use efficiency of spring maize to adapt to climate change in Northeast China

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Journal of Integrative Agriculture 2021年第2期20卷 371-382页

作者： SU Zheng-e liu Zhi-juan BAI Fan ZHANG Zhen-tao SUN Shuang HUANG Qiu-wan liu Tao liu xiao-qing YANG xiao-guang College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193P.R.China Chinese Academy of Meteorological Sciences Beijing 100081P.R.China

Northeast China (NEC) is one of the major maize production areas in ***-climatic resources have obviously changed,which will seriously affect crop growth and development in this *** is important to investigate the contribution of climate change adaptation measures to the yield and resource use efficiency to improve our understanding of how we can effectively ensure high yield and high efficiency in the *** this study,we divided the study area into five accumulated temperature zones (ATZs) based on growing degree days (GDD).Based on the meteorological data,maize data (from agrometeorological stations) and the validated APSIM-Maize Model,we first investigated the spatial distributions and temporal trends of maize potential yield of actual planted cultivars,and revealed the radiation use efficiency (RUE) and heat resource use efficiency (HUE) from 1981 to *** according to the potential growing seasons and actual growing seasons,we identified the utilization percentages of radiation (P_R) resource and heat resource (P_H) for each ATZ under potential production from 1981 to ***,we quantified the contributions of cultivar changings to yield,P_R and P_H of *** results showed that during the past 37 years,the estimated mean potential yield of actual planted cultivars was 13 649 kg ha^(–1),ranged from 11 205 to 15 257 kg ha^(–1),and increased by 140 kg ha^(–1) per *** potential production,the mean values of RUE and HUE for the actual planted maize cultivars were 1.22 g MJ^(–1) and 8.58 kg (℃ d)^(–1) ha^(–1).RUE showed an increasing tendency,while HUE showed a decreasing *** lengths of the potential growing season and actual growing season were 158 and 123 d,and increased by 2 and 1 d per decade.P_R and P_H under potential production were 82 and 86%,respectively and showed a decreasing tendency during the past 37 *** indicates that actual planted cultivars failed to make full use of climate ***,resul

关键词： APSIM maize potential yield radiation use efficiency resource utilization percentage cultivar selection

Whole-genome identification and expression analysis of K^+ efflux antiporter(KEA) and Na^+/H^+ antiporter(NHX) families under abiotic stress in soybean

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Journal of Integrative Agriculture 2015年第6期14卷 1171-1183页

作者： CHEN Hua-tao CHEN Xin WU Bing-yue YUAN Xing-xing ZHANG Hong-mei CUI xiao-yan liu xiao-qing Institute of Vegetable Crops Jiangsu Academy of Agricultural Sciences

Sodium toxicity and potassium insufficient are important factors affecting the growth and development of soybean in saline soil. As the capacity of plants to maintain a high cytosolic, K^＋/Na^＋ ratio is the key determinant of tolerance under salt stress. The aims of the present study were to identify and analyse expression patterns of the soybean K^＋ efflux antiporter（KEA） gene and Na^＋/H^＋ antiporter（NHX） gene family, and to explore their roles under abiotic stress. As a result, 12 soybean Gm KEAs genes and 10 soybean Gm NHXs genes were identified and analyzed from soybean genome. Interestingly, the novel soybean KEA gene Glyma16g32821 which encodes 11 transmembrane domains were extremely up-regulated and remained high level until 48 h in root after the excessive potassium treatment and lack of potassium treatment, respectively. The novel soybean NHX gene Glyma09g02130 which encodes 10 transmembrane domains were extremely up-regulated and remained high level until 48 h in root with Na Cl stress. Imaging of subcellular locations of the two new Glyma16g32821-GFP and Glyma09g02130-GFP fusion proteins indicated all plasma membrane localizations of the two novel soybean genes. The 3D structures indicated that the two soybean novel proteins Glyma09g02130（NHX） and Glyma16g32821（KEA） all belong to the cation/hydrogen antiporter family.

关键词： soybean KEA NHX and Na antiporter abiotic potassium extremely transmembrane maintain

Advances in salinity tolerance of soybean: Genetic diversity, heredity, and gene identification contribute to improving salinity tolerance

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Journal of Integrative Agriculture 2018年第10期17卷 2215-2221页

作者： CHEN Hua-tao liu xiao-qing ZHANG Hong-mei YUAN Xing-xing GU He-ping CUI xiao-yan CHEN Xin Institute of Industrial Crops Jiangsu Academy of Agricultural Sciences

Salt stress is one of the major abiotic stresses affecting soybean growth. Genetic improvement for salt tolerance is an effective way to protect soybean yield under salt stress conditions. Successful improvement of salt tolerance in soybean relies on identifying genetic variation that confers tolerance in soybean germplasm and subsequently incorporating these genetic resources into cultivars. In this review, we summarize the progress in genetic diversity and genetics of salt tolerance in soybean, which includes identifying genetic diversity for salt tolerant germplasm; mapping QTLs conferring salt tolerance; map-based cloning; and conducting genome-wide association study（GWAS） analysis in soybean. Future research avenues are also discussed, including high throughput phenotyping technology, the CRISPR/Cas9 Genome-Editing System, and genomic selection technology for molecular breeding of salt tolerance.

关键词： soybean genetic variation heredity gene identification salinity improvement

A molecular half-adder and half-subtractor based on pyrylium

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Chinese Science Bulletin 2010年第25期55卷 2799-2802页

作者： CAO ChaoTun liu Hui ZHU xiao-qing CHENG Jin-Pei Department of Chemistry State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China

A very simple molecular cation, 4-(4-dimethylaminophenyl)-2,6-diphenylpyrylium, has been demonstrated to have a function of molecular half-adder and half-subtractor according to the detectable spectroscopic changes of the molecular system in response to the inputs of acid and base. Distinct algebraic operations can be performed in this reconfigurable molecular logic system.

关键词：分子离子半加器减法吡喃基础逻辑系统氨基苯基功能变化

The t/s-Diagnosability and Diagnostic Strategy of Balanced Hypercube Under Two Classic Diagnostic Models

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JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 2024年第5期39卷 1207-1222页

作者： liu, xiao-qing Zhou, Shu-Ming Cheng, Eddie Zhang, Hong Fujian Normal Univ Coll Math & Stat Fuzhou 350117 Fujian Peoples R China Fujian Normal Univ Ctr Appl Math Fujian Prov Fuzhou 350117 Peoples R China Oakland Univ Dept Math & Stat Rochester MI 48309 USA

Fault diagnosis plays a crucial role in the fault tolerability assessment of an interconnection network, which is of great value in the design and maintenance of large-scale multiprocessor systems. A t/s-diagnostic strategy, as the generalization of the t/t-diagnostic strategy, refers to the self-diagnosis of a multiprocessor system in which all faulty vertices can be identified in a set of size at most s in the presence of at most t faulty vertices. In this work, we show that the balanced hypercube BHn (n >= 4) is ((2n + 1) (sic)g/2(sic) - (sic)g/2(sic)2)/((2n + 1) (sic)g/2(sic) - (sic)g/2(sic)2 + (g - 2))-diagnosable under both the Preparata, Metze, and Chien (PMC) and MM* models for 4 <= (sic)g/2(sic) <= n. Moreover, we propose two effective t/s-diagnosis algorithms under the PMC and MM* models with time complexity O(NlogN) and O(N(logN)2) (N = 22n is the order of BHn), respectively. Finally, comparison results indicate that t/s-diagnosability strengthens the self-diagnosable capability of the system compared with traditional diagnosabilities.

关键词： fault diagnosis t/s-diagnosability t/s-diagnosis algorithm balanced hypercube

Surgical outcomes of functional single ventricle with total anomalous pulmonary venous connection

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South China Journal of Cardiology 2020年第1期21卷 38-46,52页

作者： OU Yan-qiu liu xiao-bing CEN Jian-zheng liu xiao-qing Department of Epidemiology Guangdong Cardiovascular InstituteWHO Collaborating Center for Research and Training in Cardiovascular DiseasesGuangdong Provincial Key Laboratory of South China Structural Heart DiseaseGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510180GuangdongChina Department of Cardiac Surgery Guangdong Cardiovascular InstituteWHO Collaborating Center for Research and Training in Cardiovascular DiseasesGuangdong Provincial Key Laboratory of South China Structural Heart DiseaseGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510180GuangdongChina

Background The surgical outcomes have been greatly improved over the past four decades for functional single ventricle(FSV). However,the repair for coexistence of FSV and total anomalous pulmonary venous connection(TAPVC),especially obstructed TAPVC,has remained a clinical challenge. Little is known about the results of surgical treatment for patients with FSV-TAPVC in China. Methods Forty consecutive patients with FSV-TAPVC undergoing initial surgical palliation(median age:16.8 months;body weight:8.25 kg)were retrospectively enrolled from 2006 to 2016 in a specialized cardiovascular institute. TAPVC was repaired in 30 patients. The mean follow-up period was 49 months. Results All of the 7 patients with preoperative pulmonary vein obstruction(PVO)underwent repair of TAPVC at the first operation and survived. When a systemic to pulmonary(S-P)shunt or pulmonary artery banding(PAB)was necessary,patients with concomitant TAPVC repair had lower mortality(30.0%)and higher total cavopulmonary connection completion rate(20.0%)than those without TAPVC repair[75.0% and 0%,respectively],although with no statistical significance(Fisher test,P=0.505 and P=0.245). The overall survival rates for the cohort at 1,3 and 5 years after the initial surgical intervention were 80.0%,77.1% and 77.1%,respectively. Multivariate COX regression analysis detected that SP shunt(adjusted odds ratio:6.51;95%CI:1.26-33.71,P=0.030)is the only risk factor for survival. The reintervention rate for postoperative PVO was higher in patients with preoperative PVO than those without(57.1%vs. 4.3%,Log Rank:P=0.006). Conclusion The mid-term results of surgical repair of FSV-TAPVC are still challenging. When PVO exists,surgical repair for TAPVC is suggested as soon as possible. Repair for TAPVC should also be considered when S-P shunt or PAB is necessary. Further study with larger population are warranted to support our finding.

关键词： congenital heart defects functional single ventricle total anomalous pulmonary venous connection sutureless technique