|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Exogenous plant MIR168a specifically targets mammalian LDLRAPI: evidence of cross-kingdom regulation by microRNA显示文摘 | Lin Zhang Dongxia Hou Xi Chen Donghai Li Lingyun Zhu Yuj ing Zhang Jing Li Zhen Bian Xiangying Liang Xing Cai Yuan Yin Cheng Wang Tianfu Zhang Dihan Zhu Dianmu Zhang Jie Xu Qun Chen Yi Ba Jing Liu Qiang Wang Jianqun Chen Jin Wang Meng Wang Qipeng Zhang Junfeng Zhang Ke Zen Chen-Yu Zhang | 2012 | Cell Research2012，22，1： | 155 |
| 2 | Honeysuckle-encoded atypical microRNA2911 directly Largets influenza A viruses显示文摘 | Zhen Zhou Xihan Li Jinxiong Liu Lei Dong Qun Chen Jialing Liu Huihui Kongt Qianyi Zhang Xian Qi Dongxia Hou Lin Zhang Guoquan Zhang Yuchen Liu Yujing Zhang Jing Li Jin Wang Xi Chen Hua Wang Junfeng Zhang Hualan Chen Ke Zen Chen-Yu Zhang | 2015 | Cell Research2015，25，1： | 104 |
| 3 | Expenditure of hospital care on cancer in China, from 2011 to 2015显示文摘Objective: A solid understanding of levels and trends of spending on cancer is important to evaluate whether our healthcare resources were wisely spent and to prioritize future resources for cancer treatment and prevention.However, studies on economic burden of cancers in China are scant and the results are inconsistent.Methods: The Chinese hospital information database and nearly 350 million inpatient medical record data were used. As the ratios of cancer inpatient payments to total inpatient payments were mainly influenced by the grades and sites of hospitals, the estimates of payments of cancer inpatients in this study were stratified by hospital grades and provinces. Only the payments of cancer inpatients happened in grade 2, grade 3 and specialized cancer hospitals were included in the analyses. The total medical payments of cancers in China were estimated based on the ratios of outpatient payments to inpatient payments in specialized cancer hospitals.Results: From 2011 to 2015, the payments of cancer inpatients in China have increased by 84.1% and the total inpatient payments reached 177.1 billion RMB in 2015, accounting for 4.3% of the total health expenditure in China. Based on the ratio of outpatient payments to inpatient payments, the total payments on cancer treatments in China were estimated to be 221.4 billion RMB in 2015. Among different cancer types, the highest payments were the treatment of trachea, bronchus and lung cancer. The major cancer inpatient payments(67.1% in 2015) spent in grade 3 general hospitals and this ratio increased continually from 2011 to 2015. The expenditure of cancer treatments also varies by region with the major expenditure in the eastern region of China.Conclusions: This study estimated the total payments of cancer treatments in China and analyzed how the money was spent on cancer treatments in the recent 5 years, which would provide information for decision makings on the allocation of resources to service provisioning, prevention strategies, research funding, and assessing whether the economic burden of cancer is affordable to the governments. | Yue Cai Ming Xue Wanqing Chen Maogui Hu Zhiwen Miao Lan Lan Rongshou Zheng Qun Meng | 2017 | Chinese Journal of Cancer Research2017，29，3： | 81 |
| 4 | Analysis of in vivo patterns of caspase 3 gene expression in primary hepatocellular carcinoma and its relationship to p21^(WAF1) expression and hepatic apoptosis显示文摘AIM To detect the expression of caspase 3gene in primary human hepatocellular carcinoma(HCC)and investigate its relationship to p21WAF1gene expression and HCC apoptosis.METHODS In situ hybridization was employedto determine caspase 3 and p21WAF1expression inHCC.In situ end-labeling was used to detecthepatocytic apoptosis in HCC.RESULTS Twenty-one of 39(53.8%)cases ofHCC were found to express caspase 3transcripts,while 45.2% of HCC failed toexpress caspase 3.Non-cancerous adjacent livertissues showed more positive caspase 3(87.5%,7/8)as compared with HCC(P<0.05).The expression of caspase 3 is correlated withHCC differentiation,72.2%(13/18)ofmoderately to highly differentiated HCC showedcaspase 3 transcripts positive,while only 38.1%of poorly differentiated HCC harbored caspase 3transcripts(P<0.05).No relationship wasfound between caspase 3 expression and tumorsize or grade or metastasis,although 52.5%(5/8)of HCC with metastasis were caspase 3positive and a little higher than that with nometastasis(51.6%,P>0.05).Expression of caspase 3 alone did not affect the apoptosisindex(AI)of HCC.The AI was 7.12%o in caspase3-positive tumors(n=21),while in caspase 3-negative cases(n=18)6.59%0(P>0.05).Expression of caspase 3 clearly segregated withp21WAF1positive tumors as compared withp21WAF1-negative cases(16 of 23,69.6% versus5 of 16,31.3%)with statistical significance(P=0.017).In the cases with positive caspase 3and negative p21WAF1,the Al was found slightlyhigher,but with no statistical significance,thanthat with expression of p21WAF1and caspase 3(7.21‰ vs 6.98‰,P>0.05).CONCLUSION Loss of caspase 3 expressionmay contribute to HCC carcinogenesis,althoughthe expression of caspase 3 does not correlatewell with cell apoptosis in HCC.p21WAF1may bemerely one of the inhibitors which can reducecaspase 3 mediated cell apoptosis in HCCs. | Bao Hua Sun Jun Zhang Bao JǜWang Xi Ping Zhao You Kun Wang Zhi Qun Yu Dong Liang Yang Lian Jie Hao Department of Clinical Immunology,Tongji Hospital,Tongji Medical University,Wuhan 430030,Hubei Province,China | 2000 | World Journal of Gastroenterology2000，6，3： | 65 |
| 5 | Relationship between plasma D(-)-lactate and intestinal damage after severe injuries in rats显示文摘AIM To explore the kinetic changes in plasma D (-)lactate and lipopolysaccharide ( LPS ) levels, and investigate whether D (-)-lactate could be used as a marker of intestinal injury in rats following gut ischemia/reperfusion, burn, and acute necrotizing pancreatitis (ANP).METHODS Three models were developed in rats:gut ischemia/reperfusion obtained by one hour of superior severe burn injury created by 30% of total body surface induced by continuous inverse infusion of sodium taurocholate and trypsin into main pancreatic duct.Plasma levels of D( - )-lactate in systemic circulation and LPS in portal circulation were measured by enzymaticspectrophotometric method and limulus amebocyte lysate (LAL) test kit, respectively. Tissue samples of intestine were taken for histological analysis.RESULTS One hour gut ischemia followed by reperfusion injuries resulted in a significant elevation in plasma D( - )lactate and LPS levels, and there was a significant correlation between the plasma D( - )-lactate and LPS (r =0.719, P<0.05). The plasma concentrations of D(-)lactate and LPS increased significantly at 6 h postburn,and there was also a remarkable correlation between them (r = 0.877, P < 0.01). D ( - )-lactate and LPS levels elevated significantly at 2 h after ANP, with a similar significant correlation between the two levels (r-0.798,P < 0.01 ). The desquamation of intestine villi and infiltration of inflammatory cells in the lamina propria were observed in all groups.CONCLUSION The changes of plasma D( - )-lactate levels in systemic blood paralleled with LPS levels in the portal vein blood. The measurement of plasma D (-)-lactate level may be a useful marker to assess the intestinal injury and to monitor an increase of intestinal permeability and endotoxemia following severe injuries in early stage. | Xiao-Qing Sun Xiao-Bing Fu Rong-Zhan Yi Lü Qun Deng Xiao-Guo Jian Zhi-Yong Sheng Bum Institute, 304~(th)Hospital,Beijing 100037,China Department of General Surgery,Chinese PLA 304 Hospital,Beijing 100037,China | 2001 | World Journal of Gastroenterology2001，7，4： | 56 |
| 6 | Generalized thermal resistance for convective heat transfer and its relation to entransy dissipation显示文摘In order to further analyze and optimize convective heat transfer process further, the concepts of heat flux weighted average heat temperature and heat flux weighted average heat temperature difference in multi-dimensional heat transfer system were introduced in this paper. The ratio of temperature difference to heat flux is defined as the generalized thermal resistance of convective heat transfer processes, and then the minimum thermal resistance theory for convective heat transfer optimization was developed. By analyzing the relationship between generalized thermal resistance and entansy dissipation in convective heat transfer processes, it can be concluded that the minimum thermal resistance theory equals the entransy dissipation extremum theory. Finally, a two-dimensional convective heat transfer process with constant wall temperature is taken as an example to illustrate the applicability of generalized thermal resistance to convective heat transfer process analysis and optimization. | CHEN Qun REN JianXun | 2008 | Chinese Science Bulletin2008，53，23： | 51 |
| 7 | SHRIMP zircon U-Pb age, fitho- and biostratigraphic analyses of the Huaiyu Domain in South China,— Evidence for a Neoproterozoic orogen, not Late Paleozoic-Early Mesozoic collision显示文摘 | Liangshu Shu Michel Faure Shaoyong Jiang Qun Yang Yujing Wang | 2006 | Episodes2006，29，4： | 47 |
| 8 | A Novel Protein RLS1 with NB-ARM Domains Is Involved in Chloroplast Degradation during Leaf Senescence in Rice显示文摘叶老朽,规划细胞死亡(PCD ) 的一种类型由叶绿素降级描绘了,是重要的种生长和庄稼生产率。autophagy 在叶老朽期间涉及叶绿体降级,这出现。然而,涉及这个过程的分子的机制很好没被理解。在这研究,米饭 rls1 (快速的叶老朽 1 ) 的基因、生理的特征异种被识别。rls1 异种开发了类似于在野类型的植物比那些显示了更早的老朽的叶子的整个表面上散布的疾病的小、黄褐的损害。在老朽期间满意的叶绿素的快速的损失是在 rls1 的加速的叶老朽的主要原因。显微镜的观察显示 PCD 被调整,可能在 rls1 导致叶绿体的加速的降级离开。RLS1 基因的基于地图的克隆表明它编码一以前在 carboxyl 终点与一个手臂(犰狳) 领域包含蛋白质的 uncharacterized NB (核苷酸绑定地点) 。与它在叶老朽的参与一致, RLS1 在导致黑暗的叶老朽期间是起来调整的并且由细胞激动素下面调整。有趣地, RLS1 的组成的表示稍微也在转基因的米饭植物与减少的叶绿素内容加速了叶老朽。我们识别的学习一以前, uncharacterized NBARM 蛋白质在植物生长和开发期间在 PCD 包含了,为把提供一个唯一的工具可能的调停 autophagy 的 PCD 在在植物的老朽期间。 | Bin-Bin Jiao Jian-Jun Wang Xu-Dong Zhu Long-Jun Zeng Qun Li Zu-Hua He | 2012 | Molecular Plant2012，5，1： | 45 |
| 9 | Contemporary crustal deformation of the Chinese continent and tectonic block model显示文摘We obtain the preliminary result of crustal deformation velocity field for the Chinese con-tinent by analyzing GPS data from the Crustal Motion Observation Network of China (CMONOC), particularly the data from the regional networks of CMONOC observed in 1999 and 2001. We de-lineate 9 tectonically active blocks and 2 broadly distributed deformation zones out of a denseGPS velocity field, and derive block motion Euler poles for the blocks and their relative motionrates. Our result reveals that there are 3 categories of deformation patterns in the Chinese conti-nent. The first category, associated with the interior of the Tibetan Plateau and the Tianshan oro-genic belt, shows broadly distributed deformation within the regions. The third category, associatedwith the Tarim Basin and the region east of the north-south seismic belt of China, shows block-likemotion, with deformation accommodated along the block boundaries only. The second category, mainly associated with the borderland of the Tibetan Plateau, such as the Qaidam, Qilian, Xining(in eastern Qinghai), and the Diamond-shaped (in western Sichuan and Yunnan) blocks, has thedeformation pattern between the first and the third, i.e. these regions appear to deform block-like,but with smaller sizes and less strength for the blocks. Based on the analysis of the lithosphericstructures and the deformation patterns of the regions above, we come to the inference that thedeformation modes of the Chinese continental crust are mainly controlled by the crustal structure.The crust of the eastern China and the Tarim Basin is mechanically strong, and its deformationtakes the form of relative motion between rigid blocks. On the other hand, the northward indentation of the Indian plate into the Asia continent has created the uplift of the Tibetan Plateau and the Tianshan Mountains, thickened their crust, and raised the temperature in the crust. The lower crust thus has become ductile, evidenced in low seismic velocity and high electric conductivity observed. The brittle part of the crust, driven by the visco-plastic flow of the lower crust, deforms extensively at all scales. The regions of the second category located at the borderland of the Tibetan Plateau are at the transition zone between the regions of the first and the third categories in terms of the crustal structure. Driven by the lateral boundary forces, their deformation style is also between the two, in the form of block motion and deformation with smaller blocks and less internal strength. | WANG Min (王 敏) SHEN Zhengkang (沈正康) NIU Zhijun (牛之俊) ZHANG Zusheng (张祖胜) SUN Hanrong (孙汉荣) GAN Weijun (甘卫军) WANG Qi (王 琪) REN Qun (任 群) | 2003 | Science China Earth Sciences2003，46，z2： | 33 |
| 10 | High level of ezrin expression in colorectal cancer tissues is closely related to tumor malignancy显示文摘AIM:To investigate the ezrin expression in normal colorectal mucosa and colorectal cancer tissues, and study the correlation between ezrin expression in colorectal cancer tissues and tumor invasion and metastasis.METHODS: Eighty paraffin-embedded cancer tissue samples were selected from primary colorectal adenocarcinoma. Twenty-eight patients had well-differentiated, 22 had moderately differentiated and 30 had poorly differentiated adenocarcinoma. Forty-five patients and 35 patients had lymph node metastasis. Forty-five patients were of Dukes A to B stage, and 35 were of C to D stage. Another 22 paraffi n-embedded tissue blocks of normal colorectal epithelium (>5 cm away from the edge of the tumor) were selected as the control group. All patients with colorectal cancer were treated surgically and diagnosed histologically, without preoperative chemotherapy or radiotherapy. The immunohistochemistry was used to detect the ezrin expression in paraffin-embedded normal colorectal mucosa tissues and colorectal cancer tissue samples.RESULTS: Ezrin expression in colorectal cancer was significantly higher than in normal colorectal mucosa (75.00% vs 9.09%, P<0.01), and there was a close relationship between ezrin expression and the degree of tumor differentiation, lymph node metastasis and Dukes stage (88.46% vs 50.00%, P<0.01; 94.28% vs 51.11%, P<0.01; 94.28% vs 51.11%, P<0.01).CONCLUSION: Ezrin expression is obviously higher in colorectal cancer tissues than in normal colorectal mucosa tissues, and the high level of ezrin expression is closely related to the colorectal cancer invasion and metastasis process. | Hong-Jian Wang Jin-Shui Zhu Qiang Zhang Qun Sun Hua Guo | 2009 | World Journal of Gastroenterology2009，15，16： | 31 |
| 11 | Yield and Quality Response of Cucumber to Irrigation and Nitrogen Fertilization Under Subsurface Drip Irrigation in Solar Greenhouse显示文摘The aims of this research were to compare subsurface drip irrigation scheduling and nitrogen fertilization rates in cucumber, and evaluate yield and quality of cucumber fruit, water (WUE), irrigation water (IWUE), and nitrogen use (NUE) efficiencies in the solar greenhouse in Southwest China. The irrigation water amounts were determined based on the 20 cm diameter pan (Ep) placed over the crop canopy, and cucumber plant was subjected to three irrigation water levels (I1, 0.6 Ep; I2, 0.8 Ep; and I3, 1.0 Ep) in interaction with three nitrogen fertilization levels (N1, 300 kg ha-1; N2, 450 kg ha-1; and N3, 600 kg ha-1). The results showed that the cucumber fruit yield increased with the improvement of irrigation water. Irrigation water increased yields by increasing the mean weight of the fruits, and also by increasing fruit number. But the highest values of IWUE and WUE were obtained from I2 treatment. NUE significantly decreased with the improvement of N application, but increased by irrigating more water. The quality of cucumber fruit decreased with the improvement irrigation water and nitrogen fertilization. In conclusion, the optimum irrigation level and nitrogen fertilizer application level for cucunber under subsurface drip irrigation in the solar greenhouse in Southwest China were 0.8 Ep and 450 and 600 kg ha-1, respectively. | ZHANG He-xi CHI Dao-cai WANG Qun FANG Jun FANG Xiao-yu | 2011 | Agricultural Sciences in China2011，10，6： | 32 |
| 12 | An Outbreak of NCIP (2019-nCoV) Infection in China --Wuhan, Hubei Province, 2019−2020显示文摘Emerging and re-emerging pathogens are great challenges to the public health(1).A cluster of cases of viral pneumonia of unknown etiology(VPUE),now known as novel coronavirus-infected pneumonia(NCIP),occurred in Wuhan,Hubei Province and was reported to health authorities on December 29,2019(2).A national,provincial,and municipal joint investigation team has been assembled to conduct field investigations and implement disease control and prevention measures.This report shows interim results of the investigation and makes recommendations for response measures. | The 2019-nCoV Outbreak Joint Field Epidemiology Investigation Team Qun Li | 2020 | China CDC weekly2020，2，5： | 31 |
| 13 | Altered Disease Development in the eui Mutants and Eui Overexpressors Indicates that Gibberellins Negatively Regulate Rice Basal Disease Resistance显示文摘赤霉素(气体) 形成涉及植物生长和开发的许多方面的一组重要植物 tetracyclic diterpenoid 荷尔蒙。新兴的证据含有那气体也在压力回答起作用。然而,在关於生命的应力的气体的角色大部分是未知的。这里,我们报导那个大美人或 overexpression 伸长最高编码撤销的 GA 的 internode (Eui ) 基因分别地,酶损害或增加疾病抵抗到细菌的老家(Xanthomonas oryzae pv。oyrzae ) 并且米饭强风(Magnaporthe oryzae ) 。分别地, GA3 和 GA 合成(uniconazol ) 的禁止者的外长的申请能增加疾病危险性和抵抗到细菌的老家。同样, uniconazol 恢复了 eui 异种的疾病抵抗, GA3 减少了到细菌的老家的 Eui overexpressors 的疾病抵抗。因此,抵抗的变化把层次归因于 GA。在有这的一致性, GA 新陈代谢基因 OsGA20ox2 和 OsGA2ox1 在病原体挑战期间是下面调整的。我们也发现那 PR1a 正式就职被提高,但是 SA 水平在 Eui overexpressor 被减少,当 JA 水平在 eui 异种被减少时。一起,我们的当前的学习显示气体在米饭起一个否定作用基础疾病电阻,与是的 EUI 通过调整 bioactive 气体的水平的一个积极调节的人。 | Dong-Lei Yang Qun Li Yi-Wen Deng Yong-Gen Lou Mu-Yang Wang Guo-Xing Zhou Ying-Ying Zhang Zu-Hua He | 2008 | Molecular Plant2008，1，3： | 29 |
| 14 | Rice RING protein OsBBI1 with E3 ligase activity confers broad-spectrum resistance against Magnaporthe oryzae by modifying the cell wall defence显示文摘新兴的证据建议 E3 ligases 在多样的生物过程起关键作用,包括在植物的天生的有免疫力的回答。然而,在植物的 E3 ligase 参与的机制天生的免疫是不清楚的。我们报导那米饭基因, OsBBI1,与 E3 ligase 活动编码戒指手指蛋白质,调停用途广泛的疾病抵抗。OsBBI1 的表示被米饭强风真菌 Magnaporthe oryzae,以及化学 inducers 导致, benzothiadiazole 和水杨酸酸。生物化学的分析表明那 OsBBI1 蛋白质在 vitro 拥有 E3 ubiquitin ligase 活动。基因分析表明在一根 Tos17 插入线的 OsBBI1 功能的损失增加了危险性,当在转基因的植物的 OsBBI1 的 overexpression 授与提高的抵抗到 M 的多重赛跑时。oryzae。这显示 OsBBI1 对强风真菌调制用途广泛的抵抗。OsBBI1-overexpressing 植物由 M 在感染地点在房间墙中在酉分的混合物的房间和蛋白质的 cross-linking 显示出 H2O2 累积的高水平。oryzae 与相比野类型(WT ) 植物。房间墙在 OsBBI1-overexpressing 植物是更厚的并且在变异的植物更薄比在 WT 植物。我们的结果建议 OsBBI1 由修改房间墙防卫回答调制用途广泛的抵抗到强风真菌。OsBBI1 的功能的描述为在米饭对最破坏的疾病构造用途广泛的抵抗提供卓见进 E3 调停 ligase 的天生的免疫,和一个实际工具。 | Wei Li Sihui Zhong Guojun Li Qun Li Bizeng Mao Yiwen Deng Huijuan Zhang Longjun Zeng Fengming Song Zuhua He | 2011 | Cell Research2011，21，5： | 30 |
| 15 | Coalbed methane genesis, occurrence and accumulation in China显示文摘Coalbed methane (CBM) is an important type of unconventional gas. Commercial development of CBM in America has been very successful since the 1980s. The CBM industry in Australia and Canada has developed rapidly during the last decade. Commercial development of CBM in China started in the 1990s, and has made great progress. The geological theory of CBM in China has achieved great advancement in genesis, occurrence and accumulation. On the aspect of CBM genesis, five CBM genetic types (primary biogenic gas, secondary biogenic gas, thermal degradation gas, pyrolysis gas and mixed gas) are identified by studying the geochemical characteristics of CBM, and a tracing indicator system is established. The discovery of secondary biogenic gas in medium-high rank coal reservoirs has widened the potential of CBM resources. On the aspect of CBM occurrence, the gas adsorption regulation under combined action of temperature and pressure is revealed by conducting adsorption experiments of different coal ranks under varying temperature and pressure conditions. Besides, by applying the adsorption potential theory in CBM research, the adsorption model under combined action of temperature and pressure is established. The new model can predict CBM resources accurately, and overcome the limitation of the traditional Langmuir model which uses just a single factor to describe the adsorption characteristics of deep buried coal. On the aspect of CBM accumulation, it is proposed that there are three evolutionary stages during CBM accumulation, including gas generation and adsorption, unsaturated gas adsorption, gas desorption-diffusion and preservation. Controlled by tectonic evolution, hydrodynamics and sealing conditions, CBM tends to be regionally enriched in synclines. Advances in geological theory of CBM in China can not only improve understanding of natural gas, but also provide new ideas for further exploration of CBM. | Song Yan Liu Shaobo Zhang Qun Tao Mingxin Zhao Mengjun Hong Feng | 2012 | Petroleum Science2012，9，3： | 29 |
| 16 | Relationship of human leukocyte antigen class II genes with the susceptibility to hepatitis B virus infection and the response to interferon in HBV-infected patients显示文摘AIM: To study the relationship of human leukocyte antigen (HLA)-DRB1 and -DQB1 alleles with the genetic susceptibility to HBV infection and the response to interferon (IFN) in HBV-infected patients.METHODS: Low-resolution DNA typing kit was used to determine HLA-DR-1 and -DQB1 genes in 72 patients with chronic hepatitis B (CHB) and HLA-DRB1 in 200 healthy people ready to donate their bone marrow in Shanghai.Among CHB patients, 35 were treated with IFNα-1b for 24 wk.RESULTS: The frequencies of HLA-DRB1*06, DRB1*08and DRB1*16 alleles in 72 patients were higher than in 200 healthy people (2.08% vs0%, OR = 3.837, P= 0.018;11.11% vs5.50%, OR = 2.148, P= 0.034; and 6.94% vs 3.00%, OR = 0.625, P = 0.049, respectively); whereas that of DRB1*07 allele was lower (2.78% vs 7.75%,OR = 0.340, P = 0.046). The frequency of HLA-DRB1* 14allele was higher in 11 responders to IFN compared with 24 non-responders (18.18% vs2.08%, OR = 10.444,P = 0.031), whereas that of DQB1*07 allele was inverse (9.09% vs 37.50%, OR = 0.167, P= 0.021).CONCLUSION: The polymorphism of HLA class Ⅱ may influence the susceptibility to HBV infection and the response to IFN in studied CHB patients. Compared with other HLA-DRB1 alleles, HLA-DRB1*06, DRB1*08, and DRB1*16 may be associated with chronicity of HBV infection, HLA-DRB1*07 with protection against HBV infection, and HLA-DRB1*14 allele may be associated with a high rate of the response of CHB patients to IFN treatment.Compared with other HLA-DQB1 alleles, HLA-DQB1*07 may be associated with low response rate to IFN. | Yong-Nian Han Jin-Long Yang Shui-Gen Zheng Qun Tang Wei Zhu | 2005 | World Journal of Gastroenterology2005，11，36： | 28 |
| 17 | Advances on Seed Vigor Physiological and Genetic Mechanisms显示文摘Seed vigor is a more promising seed quality character reflecting potential seed germination, field emergence and seed storage ability under different conditions than standard germination. Standard germination is influenced by genetic background and environmental effects during seed development and storage conditions. The latest research on physiological mechanism in seed vigor showed that at the late stage of seed development, the development of seed vigor involves some stress-resistant substances including late embryogenesis abundant (LEA) protein, oligosaccharides and abscisic acid (ABA). Whereas the loss of seed vigor, or seed aging and deterioration, could be attributed to lipid peroxidation, chromosome deformation and genes aberrance, and embryo protein degradation, etc. Seed vigor is a quantitative character controlled by multi-genes. Genetic and quantitative trait locus (QTL) analyses on seed-vigor trait in model plants, such as Arabidopsis and rice, are mostly concentrated on related morphology traits, whereas few physiological traits have been researched. It was concluded that, all of the QTL genetic characteristics of seed vigor-including QTL quantities, its locus on chromosome, genetic effects, and interaction effects between genetic and environment, differed with plant species and used seed-vigor traits. | SUN Qun WANG Jian-hua SUN Bao-qi | 2007 | Agricultural Sciences in China2007，6，9： | 28 |
| 18 | ASYMPTOTIC ERROR EXPANSION AND DEFECT CORRECTION FOR SOBOLEV AND VISCOELASTICITY TYPE EQUATIONS显示文摘In this paper we study the higher accuracy methods-the extrapolation and defect correction for the semidiscrete Galerkin approximations to the solutions of Sobolev and viscoelasticity type equations. The global extrapolation and the correction approximations of third order, rather than the pointwise extrapolation results are presented. | Qun Lin Shu-hua Zhang Ning-ning Yan(Institute of Systems Science, Chinese Academy of Sciences, Beijing, China) | 1998 | Journal of Computational Mathematics1998，16，1： | 28 |
| 19 | The extremum principle of mass entransy dissipation and its application to decontamination ventilation designs in space station cabins显示文摘In terms of the analogy between mass and heat transfer phenomena, a new physical quantity, i.e. mass entransy, is introduced to represent the ability of an object for transferring mass to outside. Meanwhile, the mass entransy dissipation occurs during mass transfer processes as an alternative to measure the mass transfer irreversibility. Then the concepts of mass entransy and its dissipation are used to develop the extremum principle of mass entransy dissipation and the corresponding method for convective mass transfer optimization, based on which an Euler's equation has been deduced as the optimization equation for the fluid flow to obtain the best convective mass transfer performance with some specific constraints. As an example, the ventilation process for removing gaseous pollutants in a space station cabin with a uniform air supply system has been optimized to reduce the energy consumption of the ventilation system and decrease the contaminant concentration in the cabin. By solving the op- timization equation, an optimal air velocity distribution with the best decontamination performance for a given viscous dissipation is firstly obtained. With the guide of this optimal velocity field, a suitable concentrated air supply system with appropriate air inlet position and width has been designed to replace the uniform air supply system, which leads to the averaged and the maximum contaminant concentrations in the cabin been decreased by 75% and 60%, respectively, and the contaminant concentration near the contaminant source surface been decreased by 50%, while the viscous dissipation been reduced by 30% simultaneously. | CHEN Qun REN JianXun GUO ZengYuan | 2009 | Chinese Science Bulletin2009，54，16： | 26 |
| 20 | Spatiotemporal dynamics of electric power consumption in Chinese Mainland from 1995 to 2008 modeled using DMSP/OLS stable nighttime lights data显示文摘电力消费(EPC ) 是为评估电力使用的基本索引之一。在 EPC 的空间与时间的动力学上获得及时、精确的数据为理解和电力资源的实际推广是关键的。在这研究,一个 EPC 模型从防卫气象学的卫星程序用稳定的夜间灯时间系列数据被开发运作的 Linescan 系统(DMSP/OLS ) 。模型被用来重建在在县的中国大陆的 EPC 的空间模式从 1995 ~ 2008 铺平。另外, EPC 的空间与时间的动力学被分析,并且下列结论被得出。(1 ) EPC 模型可靠地与约 70% 精确性在中国大陆代表了 EPC 的空间与时间的动力学。(2 ) 在中国大陆的大多数区域的 EPC 在对中等层次低,与显著时间、空间的变化;高级 EPC, 58.26% 在东方中国被集中。六城市的凝块(Beijing-Tianjin-Tangshan 区域, Shanghai-Nanjing-Hangzhou 区域,珀尔河三角洲,山东半岛,辽宁省,和四川盆中间南方) 说明了中国大陆的 10.69% 全部的区域,但是消费了 39.23% 电。(3 ) 在从 1995 ~ 2008,和 64% 大陆区域增加的中国大陆的大多数区域的 EPC 在 EPC 显示出重要增加。EPC 的中等增加从 1995 ~ 2008 在 61.62% 东方中国和 80.65% 华中被发现,而 75.69% 西方的中国没在 EPC 显示出重要增加。同时,分别地, 77.27% , 89.35% ,和 66.72% Shanghai-Nanjing-Hangzhou 区域,珀尔河三角洲,和山东半岛在 EPC 显示出高速度的增加。EPC 的中等增加发生在 71.12% Beijing-Tianjin-Tangshan 区域和 72.13% 并且辽宁省中间南方,分别地当没有重要增加发生在 56.34% 四川盆时。 | HE Chunyang MA Qun LI Tong YANG Yang LIU Zhifeng | 2012 | Journal of Geographical Sciences2012，22，1： | 25 |
您所在的机构暂未开通此部分的功能，请联系管理员