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Journal of Nanjing Medical University 2004年第4期18卷 183-186页

作者： GUZhen ZHOUJian-ping WUWen-zhong ZHANGYong-jie HANQun-ying WANGHe-ming DepartmentofAnatomy NanjingMedicalUniversityNanjing210029 DepartmentofAcupuncture JiangsuTraditionalMedicalHospitalNanjing210029P.R.China

Objective:To study the changes of nitric oxide synthase(NOS)activity in penumbral and core area during focal cerebral ischemia and reperfusion,and to explore the therapeutic window of focal cerebral ischemia. Methods:The middle cerebral artery of rats was occluded for 15,30,60,90 and 120 min by an intraluminal filament respectively,and recirculation was instituted for 24 *** changes of NOS activity in ischemic core area(parietal cortex and caudoputamen)and penumbral area (frontal cortex)were examined after focal cerebral ischemia and reperfusion using NADPH-d histochemistry ***:The NOS activity of the ischemic penumbral area peaked at 60 min while the ischemic core area peaked at 30 min then declined at 90-120 min ***:NOS takes part in cerebral ischemic damage during focal cerebral ischemia and *** NOS activity of the ischemic penumbral area is different from the ischemic core *** peak time of the penumbral area is delayed comparing with the core *** data suggest that the best time to apply NOS inhibitor is within 30 min in ischemic core area, and 60 min in penumbral area.

关键词： focal cerebral ischemia reperfusion brain penumbral area core area nitric oxide synthase

The importance of willow to the Chinese Grouse:evidence from analysis on their breeding territories at Lianhuashan,China

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Avian Research 2017年第4期8卷 210-217页

作者： Jin-Ming Zhao Yun Fang Yu-Hai Ma Yue-Hua Sun Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of Sciences School of Resources and Environmental Engineering Anhui University Administration Bureau of Lianhuashan National Nature Reserve

Background: The habitat features of breeding territory have important adaptive significance for the survival and reproduction of territory *** Chinese Grouse(Tetrastes sewerzowi) is a rare and endemic species with rela?tively small distribution range and decreasing population *** is important to elucidate breeding territory habitat requirements of the Chinese Grouse for habitat management and conservation ***: Using radio?telemetry and field observations,we determined the core areas of 65 breeding territories of *** to three samples were selected in each core breeding territory as used sites and compared with nearby sites with no grouse occurrence using logistic ***: Our model showed a high accuracy in prediction of core breeding territory used by males,which preferred stands with more small deciduous trees(0.5 m ≤ height core breeding territory *** shrubs were also chosen compared with unused sites Tall conifer trees was an important determinant in the distribution of Chinese Grouse at the landscape scale,and was relatively important in the univariate model,but not included in our final multivariable ***: Male Chinese Grouse established territories at sites with abundant food *** the landscape scale,the Chinese Grouse occurred in alpine conifer *** the territory scale,small willow trees had the most important effect on males' core breeding territory *** suggest that the forest gaps in dense conifer for?est are important for improving the occurrence of willows and facilitating breeding territory establishment for the Chinese Grouse.

关键词： Salix spp Chinese Grouse Territory core area Conifer forest Logistic regression

Effects of study area size on home range estimates of common bottlenose dolphins Tursiops truncatus

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Current Zoology 2017年第6期63卷 693-701页

作者： Samantha R. NEKOLNY Matthew DENNY George BIEDENBACH Elisabeth M, HOWELLS Marilyn MAZZOIL Wendy N. DURDEN Lydia MORELAND J. DAVID LAMBERT Quincy A, GIBSON University of North Florida Department of Biology 1 UNF Drive Jacksonville FL 32224 USA Georgia Aquarium Conservation Field Station 9509 Oceanshore Blvd Saint Augustine FL 32080 USA Harbor Branch Oceanographic Institute at Florida Atlantic University 5600US-1 North Fort Pierce FL 32958 USA Hubbs-SeaWorld Research Institute 3830 South Highway AIA #4-181 Melbourne Beach FL 32951 USA Harbor Branch Oceanographic Institute at Florida Atlantic University 5600 US-1 North Fort Pierce FL 32958 USA.

Knowledge of an animal＇s home range is a crucial component in making informed management decisions. However, many home range studies are limited by study area size, and therefore may underestimate the size of the home range. In many cases, individuals have been shown to travel outside of the study area and utilize a larger area than estimated by the study design. In this study, data collected by multiple research groups studying bottlenose dolphins on the east coast of Florida were combined to determine how home range estimates increased with increasing study area size. Home range analyses utilized photo-identification data collected from 6 study areas throughout the St Johns River （S JR; Jacksonville, FL, USA） and adjacent waterways, extending a total of 253km to the southern end of Mosquito Lagoon in the Indian River Lagoon Estuarine System. Univariate kernel density estimates （KDEs） were computed for individuals with 10 or more sightings （n= 20）. Kernels were calculated for the primary study area （S JR） first, then additional kernels were calculated by combining the S JR and the next adjacent waterway; this continued in an additive fashion until all study areas were included. The 95% and 50% KDEs calculated for the S JR alone ranged from 21 to 35 km and 4 to 19 kin, respectively. The 95% and 50% KDEs calculated for all combined study areas ranged from 116 to 217 km and 9 to 70 km, respectively. This study illustrates the degree to which home range may be underestimated by the use of limited study areas and demonstrates the benefits of conducting collaborative science.

关键词： bottlenose dolphin core area home range kernel analysis.

Shale Gas Formation and Occurrence in China： An Overview of the Current Status and Future Potential

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Acta Geologica Sinica(English Edition) 2016年第4期90卷 1249-1283页

作者： ZOU Caineng YANG Zhi PAN Songqi CHEN Yanyan LIN Senhu HUANG Jinliang WU Songtao DONG Dazhong WANG Shufang LIANG Feng SUN Shasha HUANG Yong WENG Dingwei Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China Langfang Branch of Research Institute of Petroleum Exploration and Development PetroChina Langfang 065007 Hebei China Geosciences and Technology Institute of Southwest Petroleum University Chengdu 610500 Sichuan China

Shale gas is one of the most promising unconventional resources both in China and abroad. It is known as a form of self-contained source-reservoir system with large and continuous dimensions. Through years of considerable exploration efforts, China has identified three large shale gas fields in the ruling, Changning and Weiyuan areas of the Sichuan Basin, and has announced more than 540 billion m3 of proven shale gas reserves in marine shale systems. The geological theories for shale gas development have progressed rapidly in China as well. For example, the new depositional patterns have been introduced for deciphering the paleogeography and sedimentary systems of the Wufeng shale and Longmaxi shale in the Sichuan Basin. The shale gas storage mechanism has been widely accepted as differing from conventional natural gas in that it is adsorbed on organic matter or a mineral surface or occurs as free gas trapped in pores and fractures of the shale. Significant advances in the techniques of microstructural characterization have provided new insights on how gas molecules are stored in micro- and nano-scale porous shales. Furthermore, newly-developed concepts and practices in the petroleum industry, such as hydraulic fracturing, microseismic monitoring and multiwell horizontal drilling, have made the production of this unevenly distributed but promising unconventional natural gas a reality. China has 10-36 trillion m3 of promising shale gas among the world＇s whole predicted technically recoverable reserves of 206.6 trillion m3. China is on the way to achieving its goal of an annual yield of 30-50 billion m3 by launching more trials within shale gas projects.

关键词： shale gas organic-rich shale unconventional system fine-grained sediments micro-nano pores core area

Extended digital image correlation method for micro-region deformation measurement

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Science China(Technological Sciences) 2011年第6期54卷 1355-1361页

作者： CHEN JinLong ZHANG XiaoChuan ZHAN Nan Department of Mechanics Tianjin University Tianjin 300072 China Tianjin Key Laboratory of Modern Engineering Mechanics Tianjin 300072 China

Extended digital image correlation(X-DIC) method is one novel test method in experimental *** this paper,the principle of the X-DIC method was introduced in detail.A selection scheme of the initial value of Newton iteration method was proposed when Newton iteration method was applied to solve the partial differential *** scheme could make the X-DIC method suitable for the large deformation measurement and avoid the non-convergence phenomenon *** performance of the X-DIC method was verified by simulated *** the pixel point with the maximum absolute error occurred mainly at the corner or on the interface of the region of interest(ROI,region used for correlation calculation),measured deformation of the core area(area surrounding the center point of the ROI with a smaller size) was taken as the reliable measured *** measurement accuracy of the X-DIC method could be improved greatly by using the core *** with a long-distance microscope,the X-DIC method could be used in the deformation measurement of the *** deformation experiment was done to test the precision of the measurement ***,the X-DIC method was applied to measure the micro-region deformation of the specimen with a *** value was proved to be in accordance with the actual deformation,showing that the X-DIC method is suitable for the research of microscale mechanical behavior of materials.

关键词： extended digital image correlation(X-DIC) initial value core area micro-region deformation

The Three Kingdoms Culture and the City of Chengdu

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Contemporary Social Sciences 2017年第1期2卷 68-75页

作者： Shen Bojun Huang Yan Institute of Literature Sichuan Academy of Social Sciences

The Three Kingdoms Culture is regarded as the most influential part in the colorful traditional cultures of Chengdu. In this paper, the relationship between the Three Kingdoms Culture and the City of Chengdu is discussed in three respects based on the definition of Three Kingdoms:(1) Chengdu is the core of the original culture of the Three Kingdoms;(2) it is the center for inheritance of the Culture;(3) it is the research center of the Culture. The research of the Three Kingdoms Culture is a topic worth considering in the process of Chengdu's growing into an International metropolis.

关键词： The Three Kingdoms Culture Chengdu core area center for inheritance

Anthropogenic Edges and Effective Preserve Size in the Coast Redwood (Sequoia sempervirens (***) Endl.) Forest

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Open Journal of Forestry 2022年第4期12卷 459-478页

作者： Will Russell Nanako Oba Swapna Deshpande Department of Environmental Studies San Jose State University San Jose USA

Ecological edges created through human activities influence both biotic and abiotic factors within forest communities. The extent of this influence within a preserve is informed by the arrangement, location, and abruptness of edges, as well as the nature of the disturbances that created them. The purpose of this study was to evaluate the impacts of anthropogenic edges on soil and vegetation in the Sequoia sempervirens (***) Endl. (coast redwood) forest, and to compare two methods for estimating the effective size of forest preserves. We used a combination of field data and remote image analysis collected in six forest preserves in the Santa Cruz Mountains of California. Analysis of field data collected on randomly distributed transects indicated an average depth of influence of 200 meters based on correlations between abiotic and biotic metrics and distance from the forest edge. Abiotic factors including soil temperature and compaction were negatively correlated to distance from the edge in the direction of the forest interior, while soil pH, moisture, and duff depth exhibited positive relationships. Positive correlations were also found for biotic variables including tree canopy cover, the dominance of coast redwood and Notholithocarpus densiflorus (Hook. and Arn.) Manos, C.H. Cannon, and S. Oh (tanoak), total understory plant cover, and the cover of coast redwood forest associated plant species. In contrast, the cover and richness of non-native species were highest for samples closest to the edge. To assess the effective size of preserves, high resolution digital areal images were accessed on an ArcGIS platform. Analysis indicated variation in abruptness between types of edges, with the greatest abruptness found on edges associated with urban development and roads and the lowest abruptness associated with agricultural, grazing, and commercial timber uses. Little variation was exhibited in sinuosity between land use types or in the relative influence of edges for

关键词： Edge core area Exurban Coast Redwood

Home Range and Habitat Use of the Moustached Warbler (Acrocephalus melanopogon) during the Reproductive Period in the Eastern Iberian Peninsula

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Open Journal of Ecology 2023年第2期13卷 80-94页

作者： Juan S. Monrós Eduardo J. Belda Robby M. Drechsler Jaime Gómez Alex Mestre Juanjo J. Sanjuán Cavanilles Institute of Biodiversity and Evolutionary Biology University of Valencia Valencia Spain Institute of Research for Integrated Management (IGIC) Polytechnical University of Valencia Valencia Spain

Many populations of the Moustached Warbler (Acrocephalus melanopogon) have suffered a noticeable decrease over the last decades. This work has the aim of estimating the home range of the Moustached Warbler and its habitat use during the reproductive season. We captured 11 males during the reproductive period with mist nets and marked them with radio transmitters. We determined the home range by calculating minimum convex polygon and kernel areas at 95% (home range) and 50% (core area). Then, to study the habitat use, we registered the proportion of the different vegetation types within these areas and carried out a compositional analysis to investigate if there is a detectable habitat preference. The results seem to indicate that the marked individuals did not show territorial behavior, given that the overlaps between home ranges and also the core areas were over 70%. The compositional analysis showed that A. melanopogon prefers tall and short reeds and mixed vegetation with rushes and bulrushes. Thus, maintaining heterogeneous and stratified vegetation would favor this species.

关键词： Compositional Analysis core area Radio Tracking Reproduction Spain Vegetation Wetlands

基于GTAP模型的我国新丝绸之路经济带核心区一体化发展评估

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区域与城市经济 2015年第9期

作者：刘小伟

新丝绸之路经济带建设是我国政府致力推进的一项重大对外战略。运用全球贸易分析模型定量评估新丝绸之路经济带核心区(即中国与中亚五国)一体化发展的影响，发现推进新丝绸之路能为沿线国家带来不同的经济增长效应和福利改善效果，是一... 详细信息

新丝绸之路经济带建设是我国政府致力推进的一项重大对外战略。运用全球贸易分析模型定量评估新丝绸之路经济带核心区(即中国与中亚五国)一体化发展的影响，发现推进新丝绸之路能为沿线国家带来不同的经济增长效应和福利改善效果，是一个多方共赢的战略。新丝绸之路经济战略实施，能减少或消除各参与国间贸易壁垒，促进国际贸易往来。量化评估中国与中亚五国经济一体化的影响，在产业方面，较为突出的是纺织业、纤维作物、皮革及其制品、木材制品等。新丝绸之路经济带的推进会给各参与国带来显著的行业分布差异，长期看会引致产业结构改变。有关结论将为我国推进新丝绸之路建设的对外战略提供决策支持。

关键词：新丝绸之路核心区经济一体化行业分布差异 GTAP New Silk Road core area economic integration industrial distribution disparity GTAP

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自然保护区景观结构设计与物种保护

中国地理