期刊文献+
共找到325篇文章
< 1 2 17 >
每页显示 20 50 100
HPV Infection among Uygur Women in a Rural Area of Hetian Prefecture,Xinjiang Uygur Autonomous Region, China 被引量:8
1
作者 Sulaiya HUSAIYIN Mayinuer NIYAZI +7 位作者 WANG Li hong WANG Jun Jie WANG Jian Bing Ayeti SIMAYI WANG Lin Zumurelaiti AINIWAER MA Chun Hua Jennifer S.SMITH 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2013年第11期934-936,共3页
It is not clear how HPV infection is prevalent among Uygur women in Xinjiang Uygur Autonomous Region, China and whether the distribution of HPV infection is related with cervical intraepithelial neoplasia (CIN) inci... It is not clear how HPV infection is prevalent among Uygur women in Xinjiang Uygur Autonomous Region, China and whether the distribution of HPV infection is related with cervical intraepithelial neoplasia (CIN) incidence among them. A study including 883 Uygur women were conducted from 2006 to 2007 in Hetian Prefecture, Xinjiang Uygur Autonomous Region, China. 展开更多
关键词 HPV Infection among uygur Women in a Rural Area of Hetian Prefecture xinjiang uygur autonomous region In China
下载PDF
Analysis and comparison of spatial interpolation methods for temperature data in Xinjiang Uygur Autonomous Region, China 被引量:4
2
作者 Huixia Chai Weiming Cheng +3 位作者 Chenghu Zhou Xi Chen Xiaoyi Ma Shangming Zhao 《Natural Science》 2011年第12期999-1010,共12页
Spatial interpolation methods are frequently used to estimate values of meteorological data in locations where they are not measured. However, very little research has been investigated the relative performance of dif... Spatial interpolation methods are frequently used to estimate values of meteorological data in locations where they are not measured. However, very little research has been investigated the relative performance of different interpolation methods in meteorological data of Xinjiang Uygur Autonomous Region (Xinjiang). Actually, it has importantly practical significance to as far as possibly improve the accuracy of interpolation results for meteorological data, especially in mountainous Xinjiang. There- fore, this paper focuses on the performance of different spatial interpolation methods for monthly temperature data in Xinjiang. The daily observed data of temperature are collected from 38 meteorological stations for the period 1960- 2004. Inverse distance weighting (IDW), ordinary kriging (OK), temperature lapse rate method (TLR) and multiple linear regressions (MLR) are selected as interpolated methods. Two rasterized methods, multiple regression plus space residual error and directly interpolated observed temperature (DIOT) data, are used to analyze and compare the performance of these interpolation methods respectively. Moreover, cross-validation is used to evaluate the performance of different spatial interpolation methods. The results are as follows: 1) The method of DIOT is unsuitable for the study area in this paper. 2) It is important to process the observed data by local regression model before the spatial interpolation. 3) The MLR-IDW is the optimum spatial interpolation method for the monthly mean temperature based on cross-validation. For the authors, the reliability of results and the influence of measurement accuracy, density, distribution and spatial variability on the accuracy of the interpolation methods will be tested and analyzed in the future. 展开更多
关键词 Spatial INTERPOLATION Method CROSS validation MONTHLY Mean Temperature xinjiang uygur autonomous region
下载PDF
Gravity and magnetic field characteristics and regional ore prospecting of the Yili ancient continent, West Tianshan, Xinjiang Uygur Autonomous Region, China 被引量:2
3
作者 Xue-zhong Yu Yi-yuan He +3 位作者 Meng Wang Jian Zhang Xuan-jie Zhang Zheng-guo Fan 《China Geology》 2020年第1期104-112,共9页
Gold,iron,copper,lead-zinc and other mineral exploration in West Tianshan,Xinjiang Uygur Autonomous Region,has made remarkable progress in recent years.However,due to the dispute on the tectonic division of West Tians... Gold,iron,copper,lead-zinc and other mineral exploration in West Tianshan,Xinjiang Uygur Autonomous Region,has made remarkable progress in recent years.However,due to the dispute on the tectonic division of West Tianshan,the ore-controlling factors and the regional metallogenic laws are controversial.The authors analyze regional gravity data and notice that the high-value region corresponds to the Yili ancient continent,thus the southeastern boundary of the Yili ancient continent is delineated.Comparative analysis of gravity,aeromagnetic and geologic data reveals that the Tulasu basin,where some medium to large epithermal gold deposits locate,lies above the Yili ancient continent;the Yili Carboniferous-Permian rift extends in E-W direction,numbers of copper deposits have been found in the mid-west section of the rift which lies above the Yili ancient continent,whereas few copper deposits have been discovered in the east section which is outside the Yili ancient continent.Accordingly,the Yili ancient continent may be rich in gold,copper and other metal elements;the metal-bearing hydrothermal solution moves up with the activity of magmatism,and deposits in the favorable places(the Tulasu basin and the Yili Carboniferous-Permian rift),forming numerous small and medium gold,copper deposits,as well as some large and super-large gold deposits.Therefore,the tectonic-magmatic hydrothermal zone above the Yili ancient continent should be the prospective area for epithermal gold and copper polymetallic deposits. 展开更多
关键词 Yili ancient continent Yili Carboniferous-Permian rift Gravity field Epithermal gold deposit Copper polymetallic deposit Geophysical and remote sensing survey engineering xinjiang uygur autonomous region China
下载PDF
Xinjiang Opens Its Door to the World——An interview with Wang Lequan,Vice-Chairman of the Standing Committee of the Xinjiang Uygur Autonomous Region 被引量:1
4
作者 Jiang Min 《China's Foreign Trade》 1995年第1期11-11,共1页
Xinjiang is a good place, with pastureland to the north and south of the Tianshan MountainThe Gobi Desert has been changed into fertile fields, irrigated by melting snows.
关键词 An interview with Wang Lequan Vice-Chairman of the Standing Committee of the xinjiang uygur autonomous region WANG xinjiang Opens Its Door to the World
下载PDF
The 3^(rd) China Standardization Forum Held in Urum qi,Xinjiang Uygur Autonomous Region
5
《China Standardization》 2005年第5期6-,共1页
关键词 China Standardization Forum Held in Urum qi xinjiang uygur autonomous region The 3 rd
下载PDF
Geochemistry of the Baishitouquan Amazonite-and Topaz-bearing Granite in the Mid-Tianshan Belt, Xinjiang, China 被引量:2
6
作者 顾连兴 杨浩 +2 位作者 苟晓琴 郭继春 王金珠 《Chinese Journal Of Geochemistry》 EI CAS 1994年第4期289-304,共16页
The Baishitouopan amaznito and topazbearing granite is one of the typical high-rubidium andhigh-fluorine granites in the eastern paft of the Mid-Tianshan belt. This intrusion is in sharp contactwith Mid-Proterozoic sc... The Baishitouopan amaznito and topazbearing granite is one of the typical high-rubidium andhigh-fluorine granites in the eastern paft of the Mid-Tianshan belt. This intrusion is in sharp contactwith Mid-Proterozoic schists, gneisses and marbles, and is compond of four zones transihonal fromthe bottom upwards: leucogranite, amazonite granite, topaz-bearing amazonite granite and topazquartz albitite.The Baishitouquan granite contains highly ordered K-feldspar, Li-rich mica, Mn-rich gamet,a-quartz and low-temerature rircon and is chemically high in Si, K, Na, Al, Li, Rb, Cs and F,and low in Ti, Fe, Ch, Mg, P, Ch, Ni, Cr, V, Sr and Ba, with Na2O>K2O. Amazonite fromthe amazonite granite zone contains 1867 ppm Rb. The F contents of bulk rocks are 3040 and4597 for the amazonite granite and topazbearing amazonite granite zones, respectivel. These twozones have δ18O values of 8.97 - 9.85%, (SMOW) and show flat REE distribution patterns withstrong Eu depletion. KAr and Rb-Sr ages of this intrusion are 226. 6 Ma and 209. 6 Marespectively, with an initial 87Sr/86Sr ratio of 0.987±0.213.The Baishitouquan granite is the product of crystallization of a lowtemperature, and wther,rubidium. and fluorine-rich magma , which may have been derived from partial melting ofmuscoviterich crustal rocks. Consolidation of this granite involved two contrasting and successivestagst melt crystallization and hydrothermal metasomasm and pforitation. Various geological features of this granite were formed during the transition from the magmatic to the hydrothermal stage. 展开更多
关键词 绿长石 黄玉 花岗岩 新疆 天山地区 地球化学 氧同位素 锶同位素
下载PDF
A New Species of Ginkgo with Male Cones and Pollen Grains in situ from the Middle Jurassic of Eastern Xinjiang,China
7
作者 WANG Zixi SUN Fankai +5 位作者 JIN Peihong CHEN Yingquan CHEN Jingwei DENG Peng YANG Guolin SUN Bainian 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第1期9-21,共13页
Well-preserved Ginkgo pollen organs are analyzed from the Middle Jurassic Xishanyao Formation of the Turpan–Hami Basin, Xinjiang Uygur Autonomous Region, northwestern China, and are described as a new species, Ginkgo... Well-preserved Ginkgo pollen organs are analyzed from the Middle Jurassic Xishanyao Formation of the Turpan–Hami Basin, Xinjiang Uygur Autonomous Region, northwestern China, and are described as a new species, Ginkgo hamiensis Z.X. Wang et B.N. Sun sp. nov. The immature male cones are cylindrical and catkin-like, with two longitudinal stripes on the stalk. The pollen sacs are shaped like a long oval with two pollen sacs fused together for each microsporophyll, and the microsporophyll tip is a triangular cystidium. The pollen grains are oblong or fusiform and monocolpate; both ends are blunt or sharp. By comparison with previously reported fossil records of Ginkgo plants, we determined that the current fossils are different from all other reported species; thus, the present fossil is referred to as a new species of Ginkgo. The reproductive organs of the Ginkgo fossils described herein can provide valuable information for the study of Ginkgo plants. Further, there are two probable evolutionary trends in the Ginkgo pollen cones. One trend is that the number of pollen sacs changed from three or four during the Jurassic and Cretaceous to two at the present day; the other is that the number of pollen sacs has remained two from the Middle Jurassic to the present day. In addition, the pollen cones described herein are similar to the pollen cones of the extant Ginkgo, which strongly indicates that the morphology of Ginkgo plants may have remained highly conserved over millions of years. 展开更多
关键词 Ginkgo hamiensis Pollen cones Middle Jurassic xinjiang uygur autonomous region Systematic evolution
下载PDF
Factor decomposition analysis of energy efficiency change based on modified structural model:A case of Xinjiang
8
作者 CHEN Rong-yi RAN Qi-ying 《Ecological Economy》 2015年第2期139-146,共8页
In order to find the dominant factor of energy efficiency change, this paper uses the modified structural model to analyze energy efficiency change from 1990 to 2012 in Xinjiang. The result shows that the energy effic... In order to find the dominant factor of energy efficiency change, this paper uses the modified structural model to analyze energy efficiency change from 1990 to 2012 in Xinjiang. The result shows that the energy efficiency increase is largely due to energy technological innovation especially by the industrial sector, and the contribution from structural shift is limited. Therefore, we should vigorously support energy-saving technological progress in the industrial sector and develop the modern service industries with lower energy consumption, in order to realize the goal of improving energy efficiency. 展开更多
关键词 ENERGY efficiency factor DECOMPOSITION MODIFIED structural model xinjiang uygur autonomous region
下载PDF
新疆维吾尔自治区战略性新兴产业时空演化机理——基于实证的研究
9
作者 王晓东 周国林 赵勍升 《河南工业大学学报(社会科学版)》 2024年第2期54-63,共10页
通过对新疆维吾尔自治区科技型企业主营业务、知识产权情况等的梳理,识别出336家战略性新兴产业范围内的企业。基于这些企业的经纬度测量彼此之间的距离,运用产业集群DO指数理论,通过matlab和Arcgis软件进行产业空间实证分析,比较产业... 通过对新疆维吾尔自治区科技型企业主营业务、知识产权情况等的梳理,识别出336家战略性新兴产业范围内的企业。基于这些企业的经纬度测量彼此之间的距离,运用产业集群DO指数理论,通过matlab和Arcgis软件进行产业空间实证分析,比较产业聚集城市的高校、科研机构等资源,归纳出新疆维吾尔自治区战略性新兴产业时空演化机理和特点:战略性新兴产业始于相关传统优势产业,发展于城市营商环境的提升;战略性新兴产业因援建人才而兴,但本地人才培养情况对产业支持力度相对较弱;目前乌鲁木齐市基于自身优势不断强化产业集群,其他城市难以获得产业外溢。进而提出对策建议:加强“一圈一带一群”的战略性新兴产业协同;优化跨城市的产业链布局,提升产业空间创新协同能力;加强人才服务体系建设。 展开更多
关键词 新疆维吾尔自治区 战略性新兴产业 DO指数
下载PDF
新疆住院医师规范化培训带教师资胜任力评价体系构建研究
10
作者 张黎峰 董亚莉 +3 位作者 宋述铭 贾粟 娜扎开提·吐尔汗江 王效刚 《卫生职业教育》 2024年第7期46-49,共4页
目的构建符合新疆医疗实际的住院医师规范化培训带教师资胜任力评价体系。方法采用文献分析法初步拟定指标,采用德尔菲法构建评价体系。结果德尔菲法专家权威系数为0.848,经过两轮专家咨询,总协调系数分别为0.295、0.241(P<0.05),专... 目的构建符合新疆医疗实际的住院医师规范化培训带教师资胜任力评价体系。方法采用文献分析法初步拟定指标,采用德尔菲法构建评价体系。结果德尔菲法专家权威系数为0.848,经过两轮专家咨询,总协调系数分别为0.295、0.241(P<0.05),专家协调性较好。最终构建包含5个一级指标14个二级指标42个三级指标的评价体系,5个一级指标为思想品德、专业能力、教学能力、学员导向、沟通能力。结论构建的住院医师规范化培训带教师资胜任力评价体系具有科学性、专业性,有助于师资队伍建设。 展开更多
关键词 新疆 住院医师规范化培训 教师 胜任力 评价体系
下载PDF
通补开泄、润燥养阴法防治新疆地区冠心病
11
作者 赵明芬 《西部中医药》 2024年第9期64-66,共3页
新疆气候殊异,该地区燥邪有温凉之异,且内外均见,而外燥多;内燥少,外燥普遍以寒为常见,内燥普遍以热为主。燥邪引起的冠心病有其地域特点,以心肾阴虚、津亏内燥证多见。临床治疗以通补开泄、润燥养阴为总法,具体以通络活血、润燥滋水、... 新疆气候殊异,该地区燥邪有温凉之异,且内外均见,而外燥多;内燥少,外燥普遍以寒为常见,内燥普遍以热为主。燥邪引起的冠心病有其地域特点,以心肾阴虚、津亏内燥证多见。临床治疗以通补开泄、润燥养阴为总法,具体以通络活血、润燥滋水、补肾养心、益元填精、开痹清泄之方药为主,同时还需采用未病先防,配合药食同用等进行预防。 展开更多
关键词 冠心病 燥邪 新疆 方域性 通补开泄 润燥养阴
下载PDF
Molecular and serological surveillance of Getah virus in the Xinjiang Uygur Autonomous Region,China,2017–2020 被引量:6
12
作者 Ning Shi Xiangshu Qiu +9 位作者 Xinyu Cao Zhanhai Mai Xiangyu Zhu Nan Li He Zhang Jinyong Zhang Zhuoxin Li Nuerlan Shaya Huijun Lu Ningyi Jin 《Virologica Sinica》 SCIE CAS CSCD 2022年第2期229-237,共9页
The Getah virus(GETV),a mosquito-borne RNA virus,is widely distributed in Oceania and Asia.GETV is not the only pathogenic to horses,pigs,cattle,foxes and boars,but it can also cause fever in humans.Since its first re... The Getah virus(GETV),a mosquito-borne RNA virus,is widely distributed in Oceania and Asia.GETV is not the only pathogenic to horses,pigs,cattle,foxes and boars,but it can also cause fever in humans.Since its first reported case in Chinese mainland in 2017,the number of GETV-affected provinces has increased to seventeen till now.Therefore,we performed an epidemiologic investigation of GETV in the Xinjiang region,located in northwestern China,during the period of 2017-2020.ELISA was used to analyze 3299 serum samples collected from thoroughbred horse,local horse,sheep,goat,cattle,and pigs,with thoroughbred horse(74.8%),local horse(67.3%),goat(11.7%),sheep(10.0%),cattle(25.1%)and pigs(51.1%)being positive for anti-GETV antibodies.Interestingly,the neutralizing antibody titer in horses was much higher than in other species.Four samples from horses and pigs were positive for GETV according to RT-PCR.Furthermore,from the serum of a local horse,we isolated GETV which was designated as strain XJ-2019-07,and determined its complete genome sequence.From the phylogenetic relationships,it belongs to the Group III lineage.This is the first evidence of GETV associated to domestic animals in Xinjiang.Overall,GETV is prevalent in Xinjiang and probably has been for several years.Since no vaccine against GETV is available in China,detection and monitoring strategies should be improved in horses and pigs,especially imported and farmed,in order to prevent economic losses. 展开更多
关键词 Getah virus(GETV) ZOONOSES ARBOVIRUS SEROPREVALENCE xinjiang uygur autonomous region
原文传递
水电煤电协同发展促进电力系统低碳转型方案评价 被引量:1
13
作者 刘泳 陈帝伊 +3 位作者 张猛 王航 赵子文 田刘杨 《人民长江》 北大核心 2024年第5期226-233,240,共9页
为协同开发水电(抽蓄),积极谋划煤电退役规模与时序、整合风光资源,保证系统稳定低碳过渡,以及探究电力系统转型(主要考虑水电发展与煤电发展)中多指标、多层次的综合效益问题,以新疆维吾尔自治区电力系统转型方案为例,构建了详细考虑... 为协同开发水电(抽蓄),积极谋划煤电退役规模与时序、整合风光资源,保证系统稳定低碳过渡,以及探究电力系统转型(主要考虑水电发展与煤电发展)中多指标、多层次的综合效益问题,以新疆维吾尔自治区电力系统转型方案为例,构建了详细考虑水库运行条件与机组运行特性的电力系统机组组合模型,依据地区发展规划制定基础退役、水电改造、煤电改造、增加抽蓄以及加速退役5种转型场景,结合层次分析法-熵权法建立了经济、环境、技术与社会4个维度的综合评价指标体系。结果表明:(1)在协同煤电转型下增加抽水蓄能可有效降低电力系统弃风弃光量与系统失负荷概率;(2)增加抽蓄并合理规划退役煤电未增加电力系统年度成本,且可以减少系统碳排放;(3)加速退役场景的综合评价得分最高,为71.53。研究成果可为新型电力系统构建与水电(抽蓄)开发、煤电退役以及整合风光资源提供理论支撑。 展开更多
关键词 新型电力系统 抽水蓄能 煤电退役 综合评价 新疆
下载PDF
新疆维吾尔自治区前列腺癌患者根治术后生活质量变化情况及其影响因素
14
作者 木卡带司·阿不都外力 梁泽兰 +3 位作者 周萍 田孟真 戴新燕 史振峰 《中华老年多器官疾病杂志》 2024年第3期185-188,共4页
目的探讨新疆维吾尔自治区前列腺癌患者根治术后生活质量变化情况及其影响因素。方法回顾性分析2021年1月至2022年12月新疆维吾尔自治区人民医院进行根治术治疗的240例前列腺癌患者的临床资料,根据生活质量得分将其分为生活质量良好组(n... 目的探讨新疆维吾尔自治区前列腺癌患者根治术后生活质量变化情况及其影响因素。方法回顾性分析2021年1月至2022年12月新疆维吾尔自治区人民医院进行根治术治疗的240例前列腺癌患者的临床资料,根据生活质量得分将其分为生活质量良好组(n=85)与生活质量欠佳组(n=155)。采用SPSS 20.0统计软件进行数据处理。根据数据类型,分别采用t检验或χ^(2)检验进行组间比较。采用logistic回归分析前列腺癌根治术患者生活质量的影响因素。结果治疗后前列腺癌治疗功能评价问卷(FACT-P)评分较治疗前升高,差异有统计学意义(P<0.05)。Logistic回归分析显示,年龄>60岁(OR=3.920,95%CI 1.216~12.631;P=0.023)、接受教育年限≤5年(OR=3.967,95%CI 1.156~13.610;P=0.029)、血肌酐异常(OR=4.948,95%CI 1.204~20.331;P=0.027)、吸烟(OR=5.233,95%CI 1.281~21.376;P=0.022)、饮酒(OR=5.463,95%CI 1.774~16.828;P=0.003)、糖尿病(OR=5.669,95%CI 1.157~27.787;P=0.033)、高血压(OR=4.874,95%CI 1.426~16.658;P=0.012)、抑郁(OR=4.968,95%CI 1.710~14.429;P=0.003)、睾酮≤10 nmol/L(OR=5.964,95%CI 1.350~15.458;P=0.015)、肿瘤转移(OR=3.939,95%CI 1.416~10.959;P=0.009)及家庭人均收入≤2000元(OR=3.626,95%CI 1.200~10.951;P=0.023)是前列腺癌患者生活质量的影响因素。结论年龄>60岁、接受教育年限≤5年、血肌酐异常、吸烟、饮酒、糖尿病、高血压、抑郁、睾酮≤10 nmol/L、肿瘤转移及家庭人均收入≤2000元是新疆维吾尔自治区前列腺癌患者生活质量的影响因素,临床需对上述因素进行针对性干预,促进术后恢复。 展开更多
关键词 前列腺癌 新疆维吾尔自治区 根治术 生活质量
下载PDF
中国新疆地区考古陶片的古地球磁场强度研究
15
作者 李能韬 周庭红 黄宝春 《北京大学学报(自然科学版)》 EI CAS CSCD 北大核心 2024年第3期503-512,共10页
使用改进的Thellier-Thellier双加热方法,对来自新疆昌吉、喀什以及塔什库尔干等地的考古陶片样品进行系统的古地球磁场强度实验和岩石磁学实验。结果显示,部分样品携带稳定的原生剩磁,从中获得约1000BC至约1200AD之间的地球磁场强度数... 使用改进的Thellier-Thellier双加热方法,对来自新疆昌吉、喀什以及塔什库尔干等地的考古陶片样品进行系统的古地球磁场强度实验和岩石磁学实验。结果显示,部分样品携带稳定的原生剩磁,从中获得约1000BC至约1200AD之间的地球磁场强度数据。经过各项检验和校正后,得到约5×10^(22)~11×10^(22) Am^(2)的虚轴向偶极矩(VADM)数据,与同时期中国其他地区的VADM数据大致处于同一区间,但是变化幅度较大,与全球地磁场模型SHAWQ2k存在不一致之处。将所得数据与约800AD的中东地区古地球磁场强度峰值以及约200AD的东亚地区古地球磁场强度峰值进行比较,拟合结果表明,中国新疆地区可能在约540AD时存在一个古地球磁场强度高峰,达峰时间介于东亚地区与中东地区之间。这一结果与非偶极子场的西向漂移特征相符,进一步说明该古地球磁场强度高峰可能与地球外核结构的演化相关。 展开更多
关键词 古地球磁场强度 岩石磁学 新疆地区 考古陶片
下载PDF
基于OCO-2遥感数据的新疆维吾尔自治区大气XCO_(2)空间化研究
16
作者 张杨 徐永明 +3 位作者 卢响军 莫亚萍 吉蒙 祝善友 《生态环境学报》 CSCD 北大核心 2024年第2期231-241,共11页
二氧化碳(CO_(2))是导致全球变暖最主要的温室气体,掌握准确的CO_(2)空间分布信息可以有效评估碳减排成效,对于推进碳达峰、碳中和工作具有重要意义。相比站点观测,碳卫星能够获取大尺度的CO_(2)分布信息,但是由于其幅宽较窄以及云覆盖... 二氧化碳(CO_(2))是导致全球变暖最主要的温室气体,掌握准确的CO_(2)空间分布信息可以有效评估碳减排成效,对于推进碳达峰、碳中和工作具有重要意义。相比站点观测,碳卫星能够获取大尺度的CO_(2)分布信息,但是由于其幅宽较窄以及云覆盖的影响,大气CO_(2)卫星遥感数据存在大量缺值区域,不能获得空间连续的大气CO_(2)分布。以新疆维吾尔自治区为研究区,基于2019年OCO-2卫星大气二氧化碳柱平均干空气混合比(XCO_(2))数据,结合气温、地形、植被、大气NO_(2)浓度等相关变量,综合对比了多元线性回归(MLR)、地理加权回归(GWR)、支持向量机(SVR)、随机森林(RF)、极端梯度提升树(XGBoost)和极端随机树(ERT)等方法在生成大气XCO_(2)空间连续数据中的表现。交叉验证结果表明,RF、XGBoost和ERT这3种集成学习模型精度明显优于SVR、GWR和MLR模型,其中ERT模型精度最高,决定系数R^(2)为0.748,平均绝对误差σ_(MAE)为0.489×10^(-6)。基于ERT模型生成了新疆2019年逐月大气XCO_(2)空间连续数据,该地区大气XCO_(2)空间差异和季节变化都很明显。在空间分布格局上总体呈现与地形“三山夹两盆”相似的空间分布特征,裸地XCO_(2)年均值最高,林地和草原的XCO_(2)年均值最低;季节变化特征与植被生长周期相似,春冬季浓度较高,夏秋季浓度较低,最高值出现在4月,最低值出现在8月,不同土地覆盖类型的大气XCO_(2)季节变化与全区域类似,其中草原和林地的季节差异最大,裸地季节差异最小。该研究为基于碳卫星遥感数据生成时空连续的大尺度XCO_(2)数据提供了参考和借鉴。 展开更多
关键词 OCO-2 XCO_(2) 卫星遥感 集成学习模型 空间化 时空分布 新疆维吾尔自治区
下载PDF
新疆维吾尔自治区工业固定排放源二氧化碳源汇匹配研究
17
作者 肖莎 王建良 倪嘉鑫 《中国能源》 2024年第6期78-89,共12页
碳中和背景下,碳捕集利用与封存技术被认为是未来减碳方案的核心举措之一,有助于解决当前化石能源系统和工业部门大部分的减排问题。新疆维吾尔自治区作为我国西北地区重要的能源综合利用基地,拥有良好的CCUS产业发展基础。在此基础上,... 碳中和背景下,碳捕集利用与封存技术被认为是未来减碳方案的核心举措之一,有助于解决当前化石能源系统和工业部门大部分的减排问题。新疆维吾尔自治区作为我国西北地区重要的能源综合利用基地,拥有良好的CCUS产业发展基础。在此基础上,本文聚焦新疆维吾尔自治区工业固定二氧化碳排放源,采用混合整数规划模型进行源汇匹配路线研究;结合空间分析,利用GIS工具,揭示源汇分布关系及源汇匹配状况;最后采用节约里程算法对基础的理论方案进行线路里程优化,以确定最优运输线路。结果表明,在总规划期内(至2050年),实施CCUS项目的总成本预计约为20471亿元人民币,单位减排成本约为378元/吨CO_(2);进一步通过节约里程法优化源汇匹配方案,有效减少了约3488千米的线路里程,单位减排成本降低至约273元/吨CO_(2)。此外,本文还初步识别出8个潜在的CCUS集群发展区域,为后续自治区大规模部署CCUS技术及发展集群提供有益参考。 展开更多
关键词 新疆维吾尔自治区 工业排放源 CCUS 源汇匹配 集群发展
下载PDF
可持续生计视角下脱贫户返贫风险评估及防控——以新疆维吾尔自治区和田地区C县为例
18
作者 姚昊彤 张晔 孙萌萌 《湖北农业科学》 2024年第7期224-230,共7页
以新疆维吾尔自治区和田地区C县为研究区域,综合运用问卷调查、层次分析法、熵权法、模糊综合评价对返贫风险进行评估。结果表明,C县人力资本、自然资本、物质资本、金融资本和社会资本返贫风险的评价值分别为2.784 4、1.965 5、2.540 5... 以新疆维吾尔自治区和田地区C县为研究区域,综合运用问卷调查、层次分析法、熵权法、模糊综合评价对返贫风险进行评估。结果表明,C县人力资本、自然资本、物质资本、金融资本和社会资本返贫风险的评价值分别为2.784 4、1.965 5、2.540 5、3.559 0、1.861 2,人力资本、物质资本和金融资本风险是造成脱贫户返贫的主要风险;脱贫户的返贫风险等级为中等风险,返贫风险的综合评价值为2.588 3;研究发现,C县存在人力资本存量不足、主导产业发展不成熟、土地流转难度较大、基层组织发挥作用不充分、帮扶责任人的管理不够精准、帮扶工作的专业化和多样化有待提升、脱贫户社会融入不足、返贫监测预警工作不完善等问题;针对以上问题,提出一是提升内生动力,促进人力资本积累;二是加强产业规划,提升产业后续帮扶力;三是强化基层组织引领,引导发挥先锋作用;四是提升乡村治理水平,帮助农户融入社会;五是落实预警机制,完善返贫监测系统。 展开更多
关键词 可持续生计 返贫风险 脱贫户 熵权法 和田地区 新疆维吾尔自治区
下载PDF
“一带一路”十年:中国新疆与中亚高等教育合作的现状、机遇与路径选择
19
作者 黄梦月 《伊犁师范大学学报》 2024年第1期20-27,共8页
“一带一路”倡议走过了十年征程,面临“再出发”的任务和挑战。《推进共建“一带一路”教育行动》指出迫切需要加强新疆与中亚高等教育的合作。十年来,新疆与中亚搭建合作平台、签署合作协议为促进新疆与中亚高等教育合作提供了顶层设... “一带一路”倡议走过了十年征程,面临“再出发”的任务和挑战。《推进共建“一带一路”教育行动》指出迫切需要加强新疆与中亚高等教育的合作。十年来,新疆与中亚搭建合作平台、签署合作协议为促进新疆与中亚高等教育合作提供了顶层设计,但也存在自身高等教育发展水平落后的劣势。面对国家拓展中亚战略伙伴关系的契机,以及“一带一路”建设中新疆的发展机遇,新疆需要应对欧盟、英、美、俄罗斯等国项目计划占领市场的挑战,以及国内其他省份及高校积极拓展合作项目的竞争挑战,基于国家扶持和政府作为,激发新疆高校在学生交流、教师交流、学术研究、教育培训和项目合作等方面的潜力。 展开更多
关键词 “一带一路” 新疆 中亚国家 高等教育合作
下载PDF
新疆农村订单定向全科医生岗位胜任力现状分析
20
作者 陈红 别悦卿 +3 位作者 沙玛·木拉提 何静汶 张晓慧 徐培兰 《卫生职业教育》 2024年第10期112-115,共4页
目的探讨新疆乡镇卫生院自2010年到2017年毕业且回到签约单位工作的农村订单定向全科医生的岗位胜任力情况。方法通过便利抽样的方法抽取新疆乡镇卫生院自2010年到2017年毕业且回到签约单位工作的农村订单定向全科医生,被抽取到的农村... 目的探讨新疆乡镇卫生院自2010年到2017年毕业且回到签约单位工作的农村订单定向全科医生的岗位胜任力情况。方法通过便利抽样的方法抽取新疆乡镇卫生院自2010年到2017年毕业且回到签约单位工作的农村订单定向全科医生,被抽取到的农村订单定向全科医生通过下发的问卷进行岗位胜任力自评。结果农村订单定向全科医生岗位胜任力总均分为(2.97±0.460)分。其中平均分最高的是职业精神与个人特质能力,最低的是医学知识与终身学习能力。不同性别、年龄、职业发展机会是影响农村订单定向全科医生岗位胜任力的因素(P<0.05)。结论新疆农村订单定向全科医生的岗位胜任力处于中上水平,提高其岗位胜任力可以从落实相关政策、优化培养方案、加强宣传、打破传统观念、改善带教形式、定期体检、增设更好的岗位上着手改善。 展开更多
关键词 订单定向 全科医生 岗位胜任力 新疆 农村
下载PDF
上一页 1 2 17 下一页 到第
使用帮助 返回顶部