|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Simultaneous mineralization of CO_2 and recovery of soluble potassium using earth-abundant potassium feldspar显示文摘CO2 capture and storage(CCS) is an important strategy in combatting anthropogenic climate change.However,commercial application of the CCS technique is currently hampered by its high energy expenditure and costs.To overcome this issue,CO2 capture and utilization(CCU) is a promising CO2 disposal method.We,for the first time,developed a promising method to mineralize CO2 using earth-abundant potassium feldspar in order to effectively reduce CO2 emissions.Our experiments demonstrate that,after adding calcium chloride hexahydrate as an additive,the K-feldspar can be transformed to Ca-silicates at 800 C,which can easily mineralize CO2 to form stable calcium carbonate and recover soluble potassium.The conversion of this process reached 84.7%.With further study,the pretreatment temperature can be reduced to 250 C using hydrothermal method by adding the solution of triethanolamine(TEA).The highest conversion can be reached 40.1%.The process of simultaneous mineralization of CO2 and recovery of soluble potassium can be easily implemented in practice and may provide an economically feasible way to tackle global anthropogenic climate change. | XIE HePing WANG YuFei JU Yang LIANG Bin ZHU JiaHua ZHANG Ru XIE LingZhi LIU Tao ZHOU XiangGe ZENG HongMei LI Chun LU HouFang | 2013 | Chinese Science Bulletin2013，58，1： | 16 |
| 2 | Tissue-specific alterations in expression and function of P-glycoprotein in streptozotocin-induced diabetic rats显示文摘瞄准: 在导致 streptozocin 的糖尿病的老鼠的服的外皮,马头鱼尾的怪兽,肝,肠的 mucosa 和肾调查表达式的变化和 P-glycoprotein (P-GP ) 的功能。 | Lu-lu ZHANG Liang LU Shi JIN Xin-yue JING Dan YAO Nan HU Li LIU Ru DUAN Xiao-dong LIU Guang-ji WANG Lin XIE | 2011 | Acta Pharmacologica Sinica2011，32，7： | 15 |
| 3 | 亚洲近视管理共识显示文摘指南的目标本指南是从国际近视研究所(IMI)白皮书中提取出来的有关近视管理方面的建议[1,2]。本指南所提供的内容都是根据现有最新数据(截至2022年3月)而来,其治疗可行性和执业范围因地区而异,应根据实际情况做调整。眼保健专家组通过对现有最优科学数据进行分析诠释,从而形成了本指南。在工作中,近视管理从业者应该将患者需求放在首位,全面考虑患者具体情况后再提出合适的处理意见。 | Monica Jong Serge Resnikoff Kah Ooi Tan 吕帆 Kah Meng Chung 胡楚南 Ian Morgan Oliver Kam Tong Woo 蓝卫忠 齐备 瞿佳 杨智宽 樊志诚 吴佩昌 Ian Flitcroft Murphy Hian Kee Chan Thok Chuan Tan Charlie Ho David Chai Wong Chong Liang Hwee Koh Olivia Qian Ru Cheng | 2022 | 中华眼视光学与视觉科学杂志2022，24，3： | 11 |
| 4 | Interactions of OsMADS1 with Floral Homeotic Genes in Rice Flower Development显示文摘在繁殖开发期间,米饭植物开发决定最后的谷物收益的唯一的花器官。OsMADS1,象 SEPALLATA 一样疯盒子的基因之一,被解开了玩关键角色 inrice 花的机关身份说明和花的分裂组织确定性。然而,在调整花开发与另外的花的 homeotic 基因位于 OsMADS1 的相互作用下面的分子的机制 remainslargely 逃犯。在这个工作,我们在他们的蛋白质之中与物理相互作用一起与 B- , C- ,和 D 班基因学习了 OsMADS1 的基因相互作用。我们证明在 OsMADS1 和 OsMADS3 之间的物理、基因的相互作用为花的分裂组织活动维护和机关身份说明是必要的;当 OsMADS1 身体上并且遗传上在调整花的分裂组织确定性和 suppressingspikelet 分裂组织回复与 OsMADS58 交往时。我们提供了重要基因证据在花开发期间支持二米饭 C 班基因(OsMADS3 和 OsMADS58 ) 的 neofunctionalization。基因表示介绍和量的 RT-PCR 分析进一步表明 OsMADS1 影响涉及发信号的花的身份和荷尔蒙的许多基因的表达式,并且染色质 immunoprecipitation (芯片)-PCR 试金进一步证明 OsMADS17 是 OsMADS1 的直接目标基因。一起拿,这些结果表明 OsMADS1 在指定米饭有多样化的规章的功能花的机关和分裂组织身份,可能通过它和不同花的 homeotic 管理者的基因、物理的相互作用。 | Yun Hu Wanqi Liang Changsong Yin Xuelian Yang Baozhe Ping Anxue Li Ru Jia Mingjiao Chen Zhijing Luo Qiang Cai Xiangxiang Zhao Dabing Zhang Zheng Yuan | 2015 | Molecular Plant2015，8，9： | 10 |
| 5 | Effect of heparin on apoptosis in human nasopharyngeal carcinoma CNE2 cells显示文摘In order to study the mechanism of the effect of heparin on apoptosis in carcinoma cells, the nasopharyngeal carcinoma cell line CNE2 was used to identify the effect of heparin on apoptosis associated with the expression of c-myc, bax, bcl-2 proteins by use of Hoechst 33258 staining, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL), agarose gel electrophoresis, and flow cytometry, as well as Western blot analysis. The results showed that heparin induced apoptosis of CNE2 cells including the morphologic changes such as reduction in the volume, and the nuclear chromatin condensation, as well as the “ladder pattern” revealed by agarose gel electrophoresis of DNA in a concentration-dependent manner.The number of TUNEL-positive cells was dramatically increased to 33.6±1.2% from 2.8±0.3% by treat ment with heparin in different concentrations (10~40 kU/L). The apoptotic index was increased to 32.5% from 3.5% by detecting SubG1 peaks on flow cytometry. Western blot analysis showed that levels of bcl-2,bax and c-myc were significantly overexpressed by treatment with the increase of heparin concentrations.These results suggest that heparin induces apoptosis of CNE2 cells, which may be regulated by differential expression of apoptosis-related genes. | LI HONG LIANG , KAI HE YE , HAI WEI ZHANG , YING RU LUO , XIAN DA REN, AI HUA XIONG, RUI SITU Department of Pharmacology ,Pharmacy College, Department of Pathology Medical College, Jinan University, Guangzhou 510632, China | 2001 | Cell Research2001，11，4： | 9 |
| 6 | Mechanism of Xylan Pyrolysis by Py-GC/MS显示文摘 | WANG Shu-rong LIANG Tao RU Bin GUO Xiu-juan | 2013 | Chemical Research in Chinese Universities2013，29，4： | 8 |
| 7 | Effect of Chain Configuration on Thermal Conductivity of Polyethylene-A Molecular Dynamic Simulation Study显示文摘Stretched polyethylene(PE)fibers are found to have super high thermal conductivity,while the bulk of polyethylene is usually thermal insulating even for those with high crystalline degree.A molecular dynamic simulation is deliberately carried out to examine the relationship between chain configuration and thermal conductivity of polyethylene.In this simulation study,independent and interacting PE chains being stretched are compared with the aim to find out the effect of stretching on thermal conductivity of PE.Various crystallization conditions for PE bulk are considered.It is found that heat transports predominately along the covalent chain rather than across chains in PE crystals.Our simulation study helps to understand experimental findings on thermal conductivity of PE at different states.W e also predict that amorphous PE may be super thermally conductive if chains are strictly stretched along heat flux. | Xiang Zhang Yu Wang Ru Xi Bin Wu Peng Chen Jia Sheng Qian Hao-Jun Liang | 2020 | Chinese Journal of Polymer Science2020，38，12： | 6 |
| 8 | Efficacy of integrated Traditional Chinese Medicine and anti-retroviral therapy on immunological nonresponse in patients with human immunodeficiency virus/acquired immunodeficiency syndrome: a Meta-analysis of randomized controlled trials显示文摘OBJECTIVE:To explore the efficacy of integrating Traditional Chinese Medicine(TCM)and anti-retroviral therapy(ART),a customized combination of different classes of medications which was also called cock-tail treatment,on the immunological nonresponse(INR)in people living with human immunodeficiency virus(HIV)(PLWH).METHODS:Relevant literature in databases such as China National Knowledge Infrastructure Database(CNKI),Wanfang Digital Journal,Chinese Medical Journal Database(CMJD),Chinese Biomedical Literature Database(CBM),Pub Med,Cochrane,and Embase was reviewed by two independent investigators.Data were extracted from the studies according to the eligible criteria and analyzed using Review Manager 5.3.RESULTS:Nine randomized controlled trials(RCTs)with 1078 patients were analyzed.Our analyses showed that CD4 T cell counts in the treatment group improved compared with that in the control group[mean difference(MD)=13.51,95%confidence interval(CI):7.42-19.60,P<0.0001].There was no significant difference between the treated and control groups after 3 months(MD=25.31,95%CI:-2.78 to 53.41,P=0.08).However,after 6 and 12 months,the response of the treatment group was superior to the control group(MD=27.45,95%CI:7.09-47.81,P=0.008 and MD=27.34,95%CI:6.31–48.37,P=0.01,respectively).The clinical efficacy of the treatment group was also higher than that of the control group(RR=1.75,95%CI:1.16-2.65,P=0.007).However,CD45 RO and CD45 RA T cell counts did not differ significantly between the two groups(MD=12.37,95%CI:-6.71 to 31.45,P=0.20 and MD=5.67,95%CI:-3.00 to14.35,P=0.20,respectively).CONCLUSION:The combined treatment strategy of integrated TCM and Western Medicine promotes long-term reconstitution of the immune system and thus,is beneficial and has potential use for improving INR in PLWH.However,large-scale RCTs are required to provide evidence for optimal intervention strategies. | TAO Zhuang HUANG Xiaojie LIU Ying WANG Ru DONG Jipeng LIANG Biyan ZOU Wen GAO Guojian WANG Zhuo ZHANG Ke WU Hao ZHANG Tong WANG Jian | 2021 | Journal of Traditional Chinese Medicine2021，41，5： | 6 |
| 9 | Microstructural and textural evolutions in multilayered Ti/Cu composites processed by accumulative roll bonding显示文摘Ti/Cu multilayered composites were fabricated via accumulative roll bonding(ARB). During codeformation of the constituent metals, the hard Ti layers necked preferentially and then fragmented with the development of shear bands. Transmission electron microscopy showed that with increasing ARB cycles, grains in Ti were significantly refined even though dynamic recrystallization has occurred. For Cu the significant grain refinement was only found within the shear banded region when the composite was processed after five ARB cycles. Due to the diffusion of Cu atoms into Ti at the heterophase interfaces, amorphization with a width less than 10 nm was identified even in the composite processed by one cycle. At higher ARB cycles, the width of amorphous region increased and intermetallic compounds CuTi appeared from the region. The lattice defects introduced at the heterophase interfaces under roll bonding was responsible for the formation of the nano-scaled compounds. X-ray diffraction showed that an abnormal {1120} fiber texture was developed in Ti layers, while significant brass-type textures were developed in Cu layers. Some orientations along the {1120} fiber favored the prismatic < a> slip for Ti.Tensile tests revealed the elevated strength without a substantial sacrifice of ductility in the composites during ARB. The unique mechanical properties were attributed to the significantly refined grains in individual metals, the good bonding between the constituent metals, as well as the development of an abnormal {1120} fiber texture in Ti layers. | Shuang Jiang Ru Lin Peng Nan Jia Xiang Zhao Liang Zuo | 2019 | Journal of Materials Science & Technology2019，35，6： | 6 |
| 10 | Generation of electricity from CO_2 mineralization: Principle and realization显示文摘Current CO2 reduction and utilization technologies suffer from high energy consuming. Thus, an energy favourable route is in urgent demanding. CO2 mineralization is theoretically an energy releasing process for CO2 reduction and utilization, but an approach to recovery this energy has so far remained elusive. For the first time, here we proposed the principle of harvesting electrical energy directly from CO2 mineralization, and realized an energy output strategy for CO2 utilization and reduction via a CO2-mineralization fuel cell(CMFC) system. In this system CO2 and industrial alkaline wastes were used as feedstock, and industrial valuable Na HCO3 was produced concomitantly during the electricity generation. The highest power density of this system reached 5.5 W/m2, higher than many microbial fuel cells. The maximum open circuit voltage reached 0.452 V. Moreover, this system was demonstrated viable to low concentration CO2(10%) and other carbonation process. Thus, the existing of an energy-generating and environmentally friendly strategy to utilize CO2 as a supplement to the current scenario of CO2 emission control has been demonstrated. | XIE He Ping WANG Yu Fei HE Yang GOU Ma Ling LIU Tao WANG Jin Long TANG Liang JIANG Wen ZHANG Ru XIE Ling Zhi LIANG Bin | 2014 | Science China(Technological Sciences)2014，57，12： | 6 |
| 11 | Au nanoclusters suppress chronic lymphocytic leukaemia cells by inhibiting thioredoxin reductase 1 to induce intracellular oxidative stress and apoptosis显示文摘Chronic lymphocytic leukaemia(CLL) is a rare blood cancer that always relapses as refractory disease and eventually leads to death. To date, therapeutic options for CLL patients are scarce and there is an urgent need to develop novel chemotherapeutics that are both effective and safe. Gold-containing compounds induce a lethal oxidative and endoplasmic reticulum stress response in cultured and primary CLL cells via inhibition of thioredoxin reductase(TrxR). However, traditional gold-containing medicines have revealed side effects during clinical applications. Therefore, safer gold-containing drugs are needed to overcome this challenge. In this study, a novel peptide templated gold cluster Au_(25)Sv_9 was synthesized and its therapeutic effect on CLL cells was evaluated. This nanocluster could induce cell apoptosis in MEC-1 cells in a dose-dependent manner which correlated with the uptake amount of clusters in cells.As expected, increasing intracellular reactive oxidative species(ROS) in MEC-1 cells was exhibited with the increase of cluster dosage. Further analyses demonstrated the underlying mechanism that the nanoclusters suppress the activity of TrxR1, increase the level of intracellular ROS, destroy the mitochondrial membrane potential and finally trigger the mitochondrial apoptotic pathway in MEC-1 cells.Furthermore, the direct interaction between Au_(25)Sv_9 clusters and TrxR1 was confirmed for the first time by isothermal titration calorimetry. These findings explored the preclinical efficacy and potential mechanism of gold clusters in CLL therapy and provided a fundamental reference for the development of other novel gold-containing chemotherapeutics to treat CLL. | Qiong Li Qing Yuan Mohan Zhao Yawen Yao Liang Gao Ru Liu Yaling Wang Yong Gong Fuping Gao Xueyun Cao | 2017 | Science Bulletin2017，62，8： | 5 |
| 12 | Effect of thermal exposure on the stress-rupture life and microstructure of a low Re-containing single crystal alloy显示文摘In this paper, the stress-rupture tests of a low Re-containing single crystal alloy IC21 before and after thermal exposure at 1100 ℃for various periods of time were conducted under the test condition of 1100 ℃/137 MPa, and the microstructure of the tested specimens was characterized by SEM and TEM. The experimental results showed that the stress rupture life of this alloy was over 150 h after the standard heat treatment of1320 ℃, 10 h/AC t 870, 32 h/AC, however the stress rupture life decreased with the increase of exposure time due to the microstructure degradation. The TEM analysis revealed that the interface mismatch dislocation networks were well established. It was observed that these mismatch networks could form at 1100 ℃ even after thermal exposure for 1 h without the external stress, which is quite different from that in the traditional single crystal superalloys. | Heng Zhang Yunfei Liang Yi Ru Shusuo Li Jian Zhou Shengkai Gong | 2015 | Progress in Natural Science:Materials International2015，25，1： | 4 |
| 13 | Outcomes of percutaneous coronary intervention in patients ≥ 75 years: one-center study in a Chinese patient group显示文摘ObjectiveTo 调查临床并且病人 ≥ 的 perioperative 特征;75 经历经皮的冠的干预(一种总线标准) 并且从 2011 年 12 月经历了一种总线标准到 2013 年 11 月的连续题目被划分在这特定的病人 group.Methods1,035 评估与短期的一种总线标准以后的死亡有关的风险因素成四个范畴:(1 ) 有稳定的咽峡炎(SA ) 的病人 ≥75 年(n = 58 ) ;(2 ) 有 SA < 的病人;75 年(n = 218 ) ;(3 ) 有急性冠的症候群(交流) 的病人 ≥75 年(n = 155 ) ;(4 ) 有交流 < 的病人;75 年(n = 604 ) 。multivariable 逻辑回归分析被进行在病人 ≥ 检测六月的死亡的风险因素;75 年经历了一种总线标准。临床的 comorbidities,在里面医院生物化学的指示物, perioperative 数据,在里面医院和六月的结果与更年轻的组,一起在四 groups.ResultsCompared 之中被分析并且比较病人 ≥75 年是更可能的有高血压,中风的历史,长期的妨碍的肺的疾病,外部脉管的疾病,心脏性的吃惊和恶意的心律不齐,并且他们与相对更低的重量,血红素,白朊, triglyceride,更高的 creatinine,尿酸,脲氮和 pro-BNP 进入医院。左主要动脉损害,多容器,钙化的损害,长期完全吸藏也是更可能的在老组被看。Univariate 分析揭示了那年龄 ≥在承认,紧急情况一种总线标准,优先的击和长期的肾疾病的 85 年,心脏性的吃惊或严重心律不齐与在老病人 ≥ 的六月的死亡有关;75 年经历了一种总线标准。Multivariable 逻辑回归证明在承认,长期的肾疾病和优先的击的心脏性的吃惊或严重心律不齐是在老病人 ≥ 预言六月的死亡的独立风险因素;75 年经历了 PCI.ConclusionsOur 数据的人,显示出那与在 75 年下面的病人相比,老病人(≥75 年) 经历了一种总线标准的人,有经常伴有 multi-comorbidities, severer 承认条件和复杂冠的损害的死亡,和更多的相对更高的风险。因素和更多强烈地在乎的风险的更好的评估应该被带去病人 ≥75 年经历了一种总线标准治疗减少复杂并发症。 | Peng-Fei CHEN Dan-Ning WANG Kan CHEN Chun LIANG Yu-Sheng RENG Jing YANG Ru DING Jacob Blackwell De-Ning LIAO | 2015 | Journal of Geriatric Cardiology2015，12，6： | 4 |
| 14 | A New Chromone Glycoside from Bupleurum Chinense显示文摘A new chromone glycoside, taikochromoside A(1), was isolated from the roots of Bupleurem chinense DC. its spectre was determined on the bases of chemical and spectral analyses. | Hong LIANG Yu Ying ZHAO Ru Yi ZHANG (Department of Phytochemistry, Beijing Medical University, Beijing 100083) | 1998 | Chinese Chemical Letters1998，9，1： | 3 |
| 15 | Development of Human in vitro Brain-blood Barrier Model from Induced Pluripotent Stem Cell-derived Endothelial Cells to Predict the in vivo Permeability of Drugs显示文摘An in vitro blood-brain barrier(BBB) model is critical for enabling rapid screening of the BBB permeability of the drugs targeting on the central nervous system.Though many models have been developed, their reproducibility and renewability remain a challenge. Furthermore, drug transport data from many of the models do not correlate well with the data for in vivo BBB drug transport.Induced-pluripotent stem cell(i PSC) technology provides reproducible cell resources for in vitro BBB modeling.Here, we generated a human in vitro BBB model by differentiating the human i PSC(hi PSC) line GM25256 into brain endothelial-type cells. The model displayed BBB characteristics including tight junction proteins(ZO-1,claudin-5, and occludin) and endothelial markers(von Willebrand factor and Ulex), as well as high transendothelial electrical resistance(TEER)(1560 X.cm2±230 X.cm2) and c-GTPase activity. Co-culture with primary rat astrocytes significantly increased the TEER of the model(2970 X.cm2 to 4185 X.cm2). RNAseq analysis confirmed the expression of key BBB-related genes in the hi PSC-derived endothelial cells in comparison with primary human brain microvascular endothelial cells,including P-glycoprotein(Pgp) and breast cancer resistant protein(BCRP). Drug transport assays for nine CNS compounds showed that the permeability of non-Pgp/BCRP and Pgp/BCRP substrates across the model was strongly correlated with rodent in situ brain perfusion data for these compounds(R2= 0.982 and R2= 0.9973,respectively), demonstrating the functionality of the drug transporters in the model. Thus, this model may be used to rapidly screen CNS compounds, to predict the in vivo BBB permeability of these compounds and to study the biology of the BBB. | Yuan Li Xueying Sun Houfu Liu Liang Huang Guofeng Meng Yu Ding Wenji Su Jiaqi Lu Sophie Gong Georg C.Terstappen Ru Zhang Wandong Zhang | 2019 | Neuroscience Bulletin2019，35，6： | 3 |
| 16 | Optimal Waist Circumference Cut-off values for Identifying Metabolic Risk Factors in Middle-aged and Elderly Subjects in Shandong Province of China显示文摘Objective To study the optimal waist circumference(WC) cut-off values for identifying metabolic risk factors in middle-aged and elderly subjects in Shandong Province of China. Methods A total of 2 873 men and 5 559 women were included in this cross-sectional study. Metabolic syndrome(MetS) was diagnosed according to the definition of Chinese Diabetes Society in 2004. The relation between WC and MetS was analyzed by multivariate logistic regression analysis. The optimal WC cut-off values were identified using the area under the ROC curve and the different diagnostic criteria for central obesity were compared. Results The WC was the risk factor for MetS independent of BMI, blood glucose, blood lipid, and blood pressure. The optimal WC cut-off value was 83.8 cm and 91.1 cm for identifying MetS in women and men, respectively. Compared with 80 cm and 85 cm for women and men, 85 cm and 90 cm had a higher Youden index for identifying all metabolic risk factors and MetS in women and men. Conclusion The appropriate WC cut-off value is 85 cm and 90 cm for identifying central obesity and MetS in women and men in Shandong Province of China. | HOU Xin Guo WANG Chuan MA Ze Qiang YANG Wei Fang WANG Ji Xiang LI Cheng Qiao WANG Yu Lian LIU Shu Min Hu Xiu Ping ZHANG Xiu Ping JIANG Mei WANG Wei Qing NING Guang ZHENG Hui Zhen MA Ai Xia SUN Yu SONG Jun LIN Peng LIANG Kai LIU Fu Qiang LI Wen Juan XIAO Juan GONG Lei WANG Mei Jian LIU Ji Dong YAN Fei YANG Jun Peng WANG Ling Shu TIAN Meng ZHAO Ru Xing JIANG Ling CHEN Li | 2014 | Biomedical and Environmental Sciences2014，27，5： | 3 |
| 17 | Circadian locomotor output cycles kaput accelerates atherosclerotic plaque formation by upregulating plasminogen activator inhibitor-1 expression显示文摘 | Qixia Jiang Hua Liu Shengyun Wang Jiamei Wang Yehua Tang Zhiqing He Feng Wu Zhigang Huang Xiaoliang Cong Ru Ding Chun Liang | 2018 | Acta Biochimica et Biophysica Sinica2018，50，9： | 3 |
| 18 | Proteomic survey towards the tissue-specific proteins of mouse mitochondria显示文摘Mitochondrion plays the key functions in mammalian cells. It is believed that mitochondrion exerts the common biologic functions in many tissues, but also performs some specific functions correspondent with tissues where it is localized. To identify the tissue-specific mitochondrial proteins, we carried out a systematic survey towards mitochondrial proteins in the tissues of C57BL/6J mouse, such as liver, kidney and heart. The mitochondrial proteins were separated by 2DE and identified by MALDI-TOF/TOF MS. Total of 87 unique proteins were identified as the tissue-specific ones, and some representatives were further verified through ICPL quantification and Western blot. Because these issue-specific proteins are coded from nuclear genes, real-time PCR was employed to examine the mRNA status of six typical genes found in the tissues.With combining of the expression data and the co-localization images obtained from confocal microscope, we came to the conclusion that the tissue-specifically mitochondrial proteins were widely distributed among the mouse tissues. Our investigation, therefore, indeed provides a solid base to further explore the biological significance of the mitochondrial proteins with tissue-orientation. | WANG Yuan SUN HaiDan RU YaWei YIN SongYue YIN Liang LIU SiQi | 2011 | Science China(Life Sciences)2011，54，1： | 3 |
| 19 | Spatio-temporal Variation of Landscape Heterogeneity under Influence of Human Activities in Xiamen City of China in Recent Decade显示文摘Xiamen is an economically competitive and highly urbanized city along the coastal area of Fujian Province, China. The research on spatio-temporal variation of landscape heterogeneity under the influence of human activities is of great importance to the further study on the relationship of landscape pattern and ecological process. It is also crucial to the discovery of spatial variation and intensity distribution of human activities. The research analyzed the intensity of human impacts and the spatial variation features and dynamics of landscape patterns by introducing statistical theories and approaches. We analyzed spatio-temporal variation of landscape heterogeneity using the geostatistical techniques, such as semivariogram and Kriging interpolation.Results show that there is a higher correlation between landscape heterogeneity indexes and human impact index. Both the indexes show a moderate spatial autocorrelation as well as an obvious characteristic of anisotropy. From 1998 to 2008, the spatial differentiation of the changes in the intensity of human activities and the changes in landscape heterogeneity shows that the landscape patterns in Xiamen are closely related with the urban land utilization methods, the condition of traffic and geographical location and the physical geographical condition such as the terrain and the ecological environment. The process of urbanization has a significant impact on the urban landscape pattern. | HUANG Yixiong YIN Xiuqin YE Gongfu LIN Jiemin HUANG Ru WANG Na WANG Liang SUN Yue | 2013 | Chinese Geographical Science2013，23，2： | 3 |
| 20 | Regioselective enzymatic acylation of troxerutin in nonaqueous medium显示文摘A series of monosubstituted troxerutin esters have been synthesized by enzyme-catalyzed regioselective acylation of troxerutin in nonaqueous medium.Using divinyl dicarboxylates(CH_2=CH-OOC-(CH_2)_n-COO-CH=CH_2,n = 2,3,4,7,8,11) featuring different chain length as acyl donors and alkaline protease from Bacillus subtilis as catalyst,troxerutin was regioselective acylated at B' ethoxyl group.The results indicated that the regioselectivity of the enzyme-catalyzed acylation was not affected by the chain lengt... | Xiao, Yong Mei Mao, Pu Zhao, Zhen Yang, Liang Ru Lin, Xian Fu | 2010 | Chinese Chemical Letters2010，21，1： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员