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美国山核桃在云南的引种研究进展及发展前景 被引量:25
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作者 习学良 XI +12 位作者 xue LIANG 范志远 FAN ZHI YUAN 董润泉 DONG RUN QUAN 张雨 ZHANG YU 《江西林业科技》 2001年第6期39-41,共3页
总结了云南53a来对美国山核桃引种、选种、生物学特性、生态适应性、苗木繁殖、丰产栽培、虫害防治的研究进展和示范推广情况。认为美国山核桃市场潜力大,在云南栽培效益高、适栽区域广、符合该省经济林树种结构调整需要,将来定会得到... 总结了云南53a来对美国山核桃引种、选种、生物学特性、生态适应性、苗木繁殖、丰产栽培、虫害防治的研究进展和示范推广情况。认为美国山核桃市场潜力大,在云南栽培效益高、适栽区域广、符合该省经济林树种结构调整需要,将来定会得到大力推广发展。 展开更多
关键词 美国山核桃 云南 引种 研究进展 发展前景
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Analysis of the Sea Fog in the Sea Around the Great Wall Station, Antarctica 被引量:5
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作者 Huang Yaorong(黄耀荣) +1 位作者 xue Zhenhe(薛振和) 《Marine Science Bulletin》 CAS 2001年第1期19-25,共7页
The synoptic analysis of sea fog in western Antarctic sea region is made based on the observation data in the Chinese Antarctic station, Great Wall Station, from December 1994 to November 1995, and the facsimile weath... The synoptic analysis of sea fog in western Antarctic sea region is made based on the observation data in the Chinese Antarctic station, Great Wall Station, from December 1994 to November 1995, and the facsimile weather charts issued by Chile. It is found that more than 90% fog in this region is the advection cooling fog. Also, the synoptic mechanism of the fog creation and distinction is discussed by analyzing the pressure field, the temperature field and the upperlevel stratification. Finally, the focus of attention in forecasting fog is pointed out. 展开更多
关键词 western ANTARCTIC seas advection cooling fog temperature INVERSION
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Gremlin1在胃癌组织中的表达及其作用分析
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作者 徐乐荣 王启之 +3 位作者 薛永举 娄诗涵 刘永涛 汪强武 《蚌埠医学院学报》 CAS 2019年第10期1329-1332,共4页
目的:分析Gremlin1在胃癌的不同临床病理学参数及胃癌组织和癌旁正常组织中的表达差异,探讨其在胃癌组织中的临床意义。方法:选取胃癌根治术后的120例组织标本及其癌旁组织,采用免疫组织化学方法检测Gremlin1的表达及其分布情况,进行定... 目的:分析Gremlin1在胃癌的不同临床病理学参数及胃癌组织和癌旁正常组织中的表达差异,探讨其在胃癌组织中的临床意义。方法:选取胃癌根治术后的120例组织标本及其癌旁组织,采用免疫组织化学方法检测Gremlin1的表达及其分布情况,进行定性分析。结果:Gremlin1在部分正常组织中无表达,在胃癌组织的细胞质中有表达,其中阳性病例61例,阴性病例59例。不同性别、年龄、肿瘤大小、临床分期下Gremlin1表达差异无统计学意义(P>0.05),而不同淋巴结转移、肿瘤分级和组织来源的Gremlin1表达差异有统计学意义(P<0.05~P<0.01)。结论:Gremlin1在胃癌进展中起重要作用,提示胃癌预后不良。 展开更多
关键词 胃肿瘤 Gremlin1 骨形态发生蛋白 免疫组织化学
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An Extended Enterprise Modeling Approach to Enterprise-based Integration 被引量:6
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作者 杨建华 xue Hengxin 《High Technology Letters》 EI CAS 2002年第1期63-66,共4页
The paradigm of extended enterprise is the core competency focused. An extended enterprise expands its scope from bounding a single enterprise to including additional processes performed by other enterprises. The inte... The paradigm of extended enterprise is the core competency focused. An extended enterprise expands its scope from bounding a single enterprise to including additional processes performed by other enterprises. The integration of processes is enterprise based. This paper proposes a recursive enterprises interconnected chain model for the extended enterprise, and presents an enterprise-based integration framework for the extended enterprise. The case study is based on a motorcycle group corporation. 展开更多
关键词 Extended enterprise MODELING Enterprise integration Core competency
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Cloning, Sequencing and Phylogenetic Study of rbcL Gene from Cyanobacteria Arthrospira and Spirulina 被引量:2
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作者 刘金姐 Zhang +6 位作者 xuecheng Sui Zhenghong Mao Yunxiang SUN xue 《High Technology Letters》 EI CAS 2004年第1期76-79,共4页
Large subunit gene of rubisco (rbcL) of cyanobacteria Arthrospira platensis FACHB341, A. Platensis FACHB439, A. Maxima OUQDSM and Spirulina sp. FACHB440 is cloned, sequenced and characterized. Results show that GC con... Large subunit gene of rubisco (rbcL) of cyanobacteria Arthrospira platensis FACHB341, A. Platensis FACHB439, A. Maxima OUQDSM and Spirulina sp. FACHB440 is cloned, sequenced and characterized. Results show that GC content of the gene in strain Spirulina sp. FACHB440 is higher than that in the others. The alignments based on deduced amino acid sequences indicate that Spirulina sp. FACHB440 is different from that in other three samples of Arthrospira, though they have the same conserved functional sites (95, 98, 121, 124, 221, 257). The nucleotide sequence similarity among the three strains of the genus of Arthrospira (96.5~99.6%) is higher than that between Arthrospira and Spirulina (78.1~78.5%). By comparison of the corresponding sequence of other cyanobacteria, a phylogenetic tree with two clusters is constructed. A. Platensis FACHB341, A. Maxima OUQDSM and A. Platensis FACHB439 form the monophyletic linage, which is fully supported by bootstrap values (1000), while Spirulina sp. FACHB440 and Anabaena sp. PCC7120 cluster in another linage with the bootstrap value of 909. 展开更多
关键词 蓝藻细菌 基因克隆 基因序列 系统发生学 螺旋藻 氨基酸
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Synthetic security assessment based on variable consistency dominance-based rough set approach 被引量:3
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作者 赵亮 xue Zhi 《High Technology Letters》 EI CAS 2010年第4期413-421,共9页
Security assessment can help understand the security conditions of an information system and yield results highly conducive to the solution of security problems in it. Taking the computer networks in a certain univers... Security assessment can help understand the security conditions of an information system and yield results highly conducive to the solution of security problems in it. Taking the computer networks in a certain university as samples, this paper, with the information system security assessment model as its foundation, proposes a multi-attribute group decision-making (MAGDM) security assessment method based on a variable consistency dominance-based rough set approach (VC-DRSA). This assessment method combines VC-DRSA with the analytic hierarchy process (AHP), uncovers the inherent information hidden in data via the quality of sorting (QoS), and makes a synthetic security assessment of the information system after determining the security attribute weight. The sample findings show that this method can effectively remove the bottleneck of MAGDM, thus assuming practical significance in information system security assessment. 展开更多
关键词 multi-attribute group decision-making (MAGDM) security assessment variable consistency dominance-based rough set approach (VC-DRSA)
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Reverse Atom Transfer Radical Polymerization of (-)-Menthyl Methacrylate 被引量:1
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作者 Yong An +3 位作者 XU Hong xue 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第3期245-246,共2页
The reverse atom transfer radical polymerization(RATRP) of (-)-menthyl methacrylate ((-)-MnMA) with AIBN(AIBN/CuCl2/bipyridine(bipy) or (-)sparteine((-)Sp) =1/2/4) initiating system in THF has been studied. The depen... The reverse atom transfer radical polymerization(RATRP) of (-)-menthyl methacrylate ((-)-MnMA) with AIBN(AIBN/CuCl2/bipyridine(bipy) or (-)sparteine((-)Sp) =1/2/4) initiating system in THF has been studied. The dependence of the specific rotation on molecular weight was investigated. 展开更多
关键词 Reverse atom transfer radical polymerization menthyl methacrylate specific rotation.
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Controlled/"Living"?Radical Polymerization of (-)-Menthyl Methacrylate 被引量:1
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作者 Yong An +3 位作者 XU Hong xue 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第2期141-142,共2页
The atom transfer radical polymerization(ATRP) of (-)-menthyl methacrylate((-)-MnMA) mediated by CuCl/bipyridine and ethyl 2-bromopropionate or 1-phenylethyl bromide in THF system has been studied. The dependence of ... The atom transfer radical polymerization(ATRP) of (-)-menthyl methacrylate((-)-MnMA) mediated by CuCl/bipyridine and ethyl 2-bromopropionate or 1-phenylethyl bromide in THF system has been studied. The dependence of the specific rotation on molecular weight and the CD of Poly((-)-MnMA) thus obtained was investigated. 展开更多
关键词 Controlled polymerization menthyl methacrylate specific rotation.
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改革开放以来坚持党集中统一领导应对重大突发事件的回顾与启示 被引量:1
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作者 杨爱杰 薛鸽 《湖北理工学院学报(人文社会科学版)》 2022年第3期25-31,共7页
改革开放以来,中国共产党坚持集中统一领导,带领人民防范抵御各种未知风险、成功应对各类重大突发事件,逐渐形成具有中国特色的应急管理思想与应急治理体系。通过研究党的领导人关于应对重大突发事件的重要论述,以改革开放以来自然灾害... 改革开放以来,中国共产党坚持集中统一领导,带领人民防范抵御各种未知风险、成功应对各类重大突发事件,逐渐形成具有中国特色的应急管理思想与应急治理体系。通过研究党的领导人关于应对重大突发事件的重要论述,以改革开放以来自然灾害、事故灾难以及公共卫生方面的重大突发事件为例,回顾重大突发事件的应对历程,特别是新冠肺炎疫情中党统筹全局,全国一盘棋的疫情治理模式,与西方形成了鲜明对比。新时代必须坚持党集中统一领导这一最大优势,进一步提升忧患意识和责任意识,强化基层党组织建设,把“两个维护”落实落细,不断推进中国共产党应对重大突发事件的理论与实践发展,实现国家治理体系和治理能力现代化。 展开更多
关键词 改革开放 中国共产党 集中统一领导 重大突发事件 理论与实践
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锚杆支护技术在综采面机道空顶区的应用 被引量:2
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作者 薛友兴 xue You-xing 《煤矿开采》 2005年第3期53-53,69,共2页
柳湾煤矿231113综采工作面推进过程中, 由于地质条件的变化造成工作面空顶区域无法支护, 采用锚杆支护技术很好地维护了空顶区顶板的稳定, 确保了工作面安全生产。
关键词 锚杆支护技术 综采工作面 空顶区
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锌介导的β-羰基酯的扩环及链增长反应
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作者 xue S 邱友春(摘) 《中国医药工业杂志》 CAS CSCD 北大核心 2006年第11期748-748,共1页
在0℃或室温下,CF3CO2ZnCH2I(有制法)在CH2Cl2中与环状β-羰基酯反应得到相应扩环产物γ-羰基酯,7例收率46%~88%;链状的β-羰基酯得到链增长产物γ-羰基酯,7例收率70%~96%,当α位有取代基时反应效果较差。
关键词 链增长 羰基 反应 扩环 介导 CH2CL2
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数字式工频多用表的设计与实现
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作者 薛杰 xue Jie 《微机发展》 2000年第3期77-79,共3页
通过对工频交流电性能指标的分析 ,我们提出了用单片机来测量交流电用电指标的方法 ,并用AT89C51实现了多用表的设计。
关键词 数字式工频多用表 设计 单片机
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Wilson's Disease and Hepatic Transplantation
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作者 TANG Ronghua(唐荣华) +3 位作者 xue Zheng(薛峥) YE Qifa(叶启发) 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2002年第2期142-143,共2页
Summary: To investigate the changes in neurological symptoms and signs, as well as serum copper, serum ceruloplasmin after hepatic transplantation in patients with Wilson’s disease, neurological symptoms and signs, s... Summary: To investigate the changes in neurological symptoms and signs, as well as serum copper, serum ceruloplasmin after hepatic transplantation in patients with Wilson’s disease, neurological symptoms and signs, serum copper, serum ceruloplasmin before and after hepatic transplantation in 18 patients with Wilson’s disease were observed, and those changes were followed up in 20 non-operative controls treated with penicillamine. Our results showed that the neurological symptoms and signs, serum copper and serum ceruloplasmin were improved in the operative group but deteriorated in the non-operative control group. Our study showed that hepatic transplantation is better than penicillamine in the treatment of Wilson’s disease. 展开更多
关键词 Wilson's DISEASE HEPATIC TRANSPLANTATION CLINICAL INVESTIGATION
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REMARK ON STABILITY OF ISHIKAWA ITERATIVE PROCEDURES
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作者 xue Zhi-qun(薛志群) +1 位作者 TIAN Hong(田虹) 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2002年第12期1472-1476,共5页
The stability of the Ishikawa iteration procedures was studied for one class of continuity strong pseudocontraction and continuity strongly accretive operators with bounded range in real uniformly smooth Banach space.... The stability of the Ishikawa iteration procedures was studied for one class of continuity strong pseudocontraction and continuity strongly accretive operators with bounded range in real uniformly smooth Banach space. Under parameters satisfying certain conditions, the convergence of iterative sequences was proved. The results improve and extend the recent corresponding results, and supply the basis of theory for further discussing convergence of iteration procedures with errors. 展开更多
关键词 Ishikawa iteration strongly pseudo-contractive operator uniformly smooth Banach space almost T-stable
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Antioxidant and hypoxia induce the human antioxidant response element-mediated expression of NAD(P)H:quinone oxidoreductase1 gene
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作者 Lijun xue +1 位作者 Zhongchu Jin 《癌变.畸变.突变》 CAS CSCD 2001年第4期227-228,共2页
关键词 肝脏肿瘤 NADH NQ01 基因表达 抗氧化剂 低氧
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英文要译
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作者 xue yan(译) 《山东省农业管理干部学院学报》 2006年第2期193-194,共2页
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铜催化不饱和化合物硅加成反应的研究进展
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作者 韩彪 李维双 +4 位作者 陈舒晗 张泽浪 赵雪 张瑶瑶 朱磊 《有机化学》 SCIE CAS CSCD 北大核心 2023年第2期555-572,共18页
有机硅化合物不仅是十分有用的功能分子,而且是非常重要的有机合成中间体,在一定条件下通过适当的化学方法,可以转化为很多其它有用的功能性化合物.到目前为止,已经陆续发展了各种过渡金属参与的催化方法来制备有机硅化合物,其中铜催化... 有机硅化合物不仅是十分有用的功能分子,而且是非常重要的有机合成中间体,在一定条件下通过适当的化学方法,可以转化为很多其它有用的功能性化合物.到目前为止,已经陆续发展了各种过渡金属参与的催化方法来制备有机硅化合物,其中铜催化不饱和化合物的硅加成反应是一种重要的合成有机硅化合物的方法.从不饱和化合物的种类出发,主要涉及α,β-不饱和化合物、亚胺、Morita-Baylis-Hillman(MBH)醇类化合物、对苯醌甲基化合物、α,β-不饱和炔羰化合物以及α,β-不饱和砜类化合物,综述了近几年在铜催化作用下这些不饱和化合物通过硅加成反应合成有机硅化合物的最新研究进展,有利于加深对铜催化硅加成反应的理解. 展开更多
关键词 不饱和化合物 铜催化 硅加成 有机硅化合物
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观众的构成与审美偏好——基于“中国电影观众满意度调查”的分析 被引量:9
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作者 薛宁 李琳 《当代电影》 CSSCI 北大核心 2022年第3期4-16,共13页
近年来,中国电影产业蓬勃发展。在银幕、票房、观影人次、电影产量等数字变化的背后,可以看到中国电影观众群体的巨大变化。一方面,电影观众对中国电影的认可度更高;另一方面,因年龄、性别、学历、阶层等不同,观众在影片类型、题材、风... 近年来,中国电影产业蓬勃发展。在银幕、票房、观影人次、电影产量等数字变化的背后,可以看到中国电影观众群体的巨大变化。一方面,电影观众对中国电影的认可度更高;另一方面,因年龄、性别、学历、阶层等不同,观众在影片类型、题材、风格等方面有着不同的审美趣味,愈发影响电影的创作及产业发展。本文基于近年来“中国电影观众满意度调查”的数据,从观众的观影行为、观影评价及审美偏好进行研究,探讨中国电影观众与电影共生互利的新变化。 展开更多
关键词 中国电影观众满意度调查 观影行为 观众构成 审美偏好
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128例偶发脑膜瘤患者肿瘤年增长率及其相关因素研究 被引量:2
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作者 许阳 姚祥 +3 位作者 滕雪 张琳 姥佩佩 徐继承 《实用心脑肺血管病杂志》 2018年第3期23-26,共4页
目的探讨128例偶发脑膜瘤患者肿瘤年增长率及其相关因素。方法选取2005—2014年西南医科大学附属医院收治的偶发脑膜瘤患者128例,均采取保守治疗。回顾性分析所有患者临床资料及随访资料,随访截至2016年12月。比较不同临床特征患者肿瘤... 目的探讨128例偶发脑膜瘤患者肿瘤年增长率及其相关因素。方法选取2005—2014年西南医科大学附属医院收治的偶发脑膜瘤患者128例,均采取保守治疗。回顾性分析所有患者临床资料及随访资料,随访截至2016年12月。比较不同临床特征患者肿瘤年增长率,并绘制Kaplan-Meier生存曲线以分析不同临床特征患者肿瘤无进展生存率。结果肿瘤年增长率为0~10%者52例(占40.62%),11%~20%者29例(占22.66%),21%~30%者18例(占14.06%),31%~40%者8例(占6.25%),>40%者21例(占16.41%)。不同年龄患者肿瘤年增长率比较,差异无统计学意义(P>0.05);不同性别、有无临床症状、不同初测体积、有无钙化及不同T2信号患者肿瘤年增长率比较,差异有统计学意义(P<0.05)。Kaplan-Meier生存曲线显示,不同年龄、不同性别、有无临床症状患者肿瘤无进展生存率比较,差异无统计学意义(P>0.05);初测体积≤10 cm^3、钙化、T2低或等信号患者无进展生存率分别高于初测体积>10 cm^3、无钙化、T2高信号患者(P<0.05)。结论偶发脑膜瘤生长速度较缓慢,年增长率较低;初测体积>10 cm^3、无钙化、T2高信号是偶发脑膜瘤患者肿瘤增长率的相关因素,对于初测体积较大、未伴有钙化、T2高信号的患者需加以重视。 展开更多
关键词 脑膜瘤 增长率 影响因素分析
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Clinical Observation of Kaixin Capsule (开心胶囊) in Treating Type 2 Diabetes Mellitus Complicated with Abnormal Lipidemia
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作者 xue Jun(薛军) +1 位作者 CHEN Jing-he(陈镜合) 《Chinese Journal of Integrative Medicine》 SCIE CAS 2002年第3期179-182,共4页
Objective: To observe the clinical efficacy of Kaixin Capsule (KXC, 开心胶囊), a Chinese compound preparation, in treating type 2 diabetes mellitus (DM) complicated with abnormal lipidemia. Methods: Seventy-two DM inp... Objective: To observe the clinical efficacy of Kaixin Capsule (KXC, 开心胶囊), a Chinese compound preparation, in treating type 2 diabetes mellitus (DM) complicated with abnormal lipidemia. Methods: Seventy-two DM inpatients were medicated on the basis of administering conventional hypoglycemics, and KXC was orally taken. They were compared with those patients only taking hypoglycemics to observe the change of blood lipid before and after treatment. Results: The total cholesterol of KXC combined with hypoglycemics group had their blood lipid lowered by 14% after treatment and triglyceride lowered by 36%, HDL-C raised by 11%, and LDL-C lowered by 24%. Compared with only hypoglycemics treatment, there was significant difference (P<0.01). Conclusion: KXC has good blood lipid regulating effect on DM complicated with abnormal lipidemia. 展开更多
关键词 Kaixin Capsule type 2 diabetes mellitus abnormal lipidemia clinical efficacy
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