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| 1 | Differentiation regularity of urban-rural equalized development at prefecture-level city in China显示文摘城市农村的使相等的发展(URED ) 对逐渐地消除城市农村的开发的双轨道的结构作为一项明确的措施和操作模型有益,衔接城市农村的开发的差距,并且创造和谐城市农村的相互作用。这份报纸试图在府水平在中国探索 URED 的现状,并且揭示 URED 和它的区别整齐的时间空间的模式。结果显示出那:(1 ) 瓷器 URED 水平能被分成二部分,即,东方并且西方根据胡焕勇线,介绍高、向西低的东方和 URED 水平的一个模式从线随距离的增加总体上改善;(2 ) 瓷器 URED 水平能也被分成北并且南部的部分根据 Kunlun-Qinling-Huaihe 排队,介绍一个模式高、向南低的北方,和 URED 从线随距离的增加总体上铺平还原剂;(3 ) 在公民铺平,瓷器 URED 有空间凝块,高度和低 URED 的一个重要趋势区域趋于也就是,邻近 URED 水平介绍明显地区性失衡;( 4 )在地理空间的 URED 水平的五亚尺寸指示物也揭示类似的地区性的区别模式,并且在一个减少的趋势在 URED 被发现的空间的方面铺平从东方(北海岸,东方海岸和南部的海岸),东北,中央(长江和黄河的中间的活动范围)到西方(西北和西南);并且(5 ) 在府级的城市的瓷器 URED 能被划分成区别区域的五种类型。这研究贡献支持 URED 和罐头有关协调城市农村的开发并且在中国推向前新型的都市化策略的决策作为一本科学参考书服务的瓷器的现状的综合认知。 | LIU Yansui CHEN Cong LI Yurui | 2015 | Journal of Geographical Sciences2015,25,9: | 45 |
| 2 | 基于Level Set方法的医学图像分割显示文摘对图像分割进行了研究,这是医学图像处理中的关键问题之一.提出了一种结合Fast Marching算法和Watershed变换的医学图像分割方法.首先用非线性扩散滤波对原始图像进行平滑,然后利用Watershed算法对图像进行过度分割,最后用改进的Fast Marching方法对图像进行分割.除此之外,根据区域之间的统计特性的相似度重新定义了Fast Marching方法的速度函数.实验结果表明,该方法能够快速、准确地得到医学图像的分割结果. | 朱付平 田捷 林瑶 葛行飞 | 2002 | 软件学报2002,13,9: | 48 |
| 3 | 图像分析中光密度参数物理意义的正确理解和使用显示文摘 | 李枫 | 2009 | 解剖学杂志2009,32,2: | 40 |
| 4 | Response of the accumulation of proline in the bodies of Populus euphratica to the change of groundwater level at the lower reaches of Tarim River显示文摘The content of proline in the plant bodies is closely related to the converse-succession-resistant capability of the plants. In this paper, the relationship between the proline accumulation in the bodies of Populus euphratica and the change of groundwater level is analyzed by taking Popu-lus euphratica, the main community-building species of the desert riparian forests along the Tarim River, as the research object. The research results show that the accumulation of proline in the bodies of Populus euphratica is closely related to the change of groundwater level gradient under drought stress, it increases with the drawdown of groundwater level and the increase of moisture stress degree; the accumulation of proline in the bodies of Populus euphratica has two ex-tremely high points at the groundwater depth ranges of 3.64—5.14 m and 9.46—10.16 m. Combining the field investiga-tion and the analysis of the plots, it is considered that the groundwater level of 3.5—4.5 m is rational for the growth of Populus euphratica. The stress groundwater depth for the normal growth and the critical one for the survival of Popu-lus euphratica are below 4.5 m and 9—10 m respectively at the lower reaches of the Tarim River. | Yaning Chen Yapeng Chen Weihong Li Hongfeng Zhang | 2003 | Chinese Science Bulletin2003,48,18: | 31 |
| 5 | Clinical Study of 224 Patients with Hypertriglyceridemia Pancreatitis显示文摘 | Xiao-Li Zhang Fei Li Ya-Min Zhen Ang Li Yu Fang | 2015 | Chinese Medical Journal2015,,15: | 32 |
| 6 | 叶面喷施稀土对千年桐幼苗生长和生理的影响显示文摘The seedlings of Vernicia montana derived from seeds soaking with water (the first group)or 300 mg5L -1 mixed nitric_acid rare earth solution (the second group) were treated with various concentrations of mixed nitric_acid rare earth solution by foliage spraying. The results showed that the seedling heights sprayed with 100 和 1 000 mg·L -1 of the first group and with 50 和 100 mg·L -1 of the second group were significantly higher than the controls, and the diameter at ground level sprayed with 300 mg·L -1 of the second group was significantly greater than the control, being 26.92% more than the latter; except for spraying with 0 mg5L -1 and 700~1 500 mg5L -1 of the second group, the seedling dry weight above ground of others was 29.13%~73.91% greater than the control, whereas the seedling dry weight under ground of others was 20.78%~116.88% greater than the control; the contents of chlorophyll a and chlorophyll b for all spraying seedling were 91.67%~191.67% and 87.5%~306.25% greater than the control, respectively, and soluble proteins and soluble sugars were 16.00%~179.78% and 10.73%~105.65% greater than the control, respectively. Compared with the control, the activity of SOD tended to increase, whereas the contents of MDA decreased. These indicated that spraying leaves with optimum concentration of mixed nitric_acid rare earth solution could markedly promote the growth of seedlings and improve resistance ability of V. montana seedlings to bad environment. On the whole, the effects of spraying the leaves of seedling with 50~500 mg5L -1 mixed nitric_acid rare earth solution, which were derived from seeds soaking with 300 mg·L -1 mixed nitric_acid rare earth solution, were good. | 韦如萍 薛立 陈红跃 彭耀强 许松葵 | 2005 | 林业科学2005,41,2: | 28 |
| 7 | 面向Internet数据中心的资源管理显示文摘Internet数据中心向多元化、智能化、自动化、规模化与标准化道路发展,其规模越来越大、越来越复杂,这为如何有效管理资源带来极大的冲击与挑战.当前,资源管理已成为Internet数据中心亟待解决的重要问题,其重要性与紧迫性已不容忽视.分析了Internet数据中心资源管理面临的两大挑战:(1)满足并发多应用SLAs(service level agreements)的兼容性;(2)提高系统服务的能量有效性.以挑战为主线,对近十几年来国内外在满足SLA、降低功耗、同时满足SLA和降低功耗方面所取得的资源管理研究成果进行了全面的概括总结和分析,最后进行总结并对未来的研究发展趋势提出观点. | 张伟 宋莹 阮利 祝明发 肖利民 | 2012 | 软件学报2012,23,2: | 25 |
| 8 | 养老保险和工资与就业增长的研究显示文摘一、序言我国的公共养老保险事业发轫于1951年政务院颁布的《中华人民共和国劳动保险条例》,之后为了适应不同阶段的中国国情,我国养老保险制度一直处于变革之中。1983年我国有关部门提出了开展全民所有制企业退休费用实行社会统筹的工作;1986年国务院发布改革劳动制度的四项规定,决定国有企业新招工人一律实行劳动合同制。 | 杨俊 | 2008 | 社会保障研究(北京)2008,,2: | 25 |
| 9 | 水下气体射流初期数值研究显示文摘 本文提出了一种新的水下气体射流的数学物理模型,并成功地将位标函数方法应用于水下气体射流气水交界面求解,数值模拟了水下气体射流初期的流动演化和气水相互作用特性,得到了气水全耦合的水下气体射流喷射初期的流场形态及其演化过程,定性结论与实验吻合。 | 贺小艳 马汉东 纪楚群 | 2004 | 水动力学研究与进展(A辑)2004,19,2: | 24 |
| 10 | 论文层面科学评价实证研究--以PLoS ONE为例显示文摘为解析论文科学评价结构,并阐述替代计量指标的可行性与可信性,本文选取PLoS ONE中物理学、化学、社会学文献1036篇,以Article level metrics为基础,采用相关分析、聚类分析以及多维定标方法,就论文的Article Usage、Mendeley、CiteUlike、Facebook等替代计量学指标与传统文献计量指标进行了对比与分析。 | 宋丽萍 陈巍 贺颖 | 2015 | 图书馆工作与研究2015,,7: | 22 |
| 11 | 基于QoS的网格资源管理显示文摘资源管理是网格计算研究领域中的一项重要研究点,目前的研究工作大多致力于解决异构性问题,对于在交付无缝QoS(quality of service)前提下提高资源分配性能方面还缺乏深入的研究.而且,目前对网格QoS的研究集中于将多媒体网络QoS的相关成果融入网格体系架构中以提供对网格QoS的支持,而缺少对网格QoS的特性进行系统化的研究与归纳.为此,提出了网格QoS的层次结构模型,并对其中承上启下的虚拟组织层QoS参数进行了新的分类和测量;然后,利用SNAP(service negotiation and acquisition protocol)协议对基于网格QoS层次结构模型的网格QoS参数的映射转换过程进行了分析;最后,设计了网格资源管理仿真系统,并运用相关的网格QoS的研究改进了现有的Min-Min算法.仿真实验结果表明,基于QoS的网格资源管理可以在满足用户QoS需求下,有效地提高网格资源的利用率和服务请求的成功率. | 伍之昂 罗军舟 宋爱波 | 2006 | 软件学报2006,17,11: | 21 |
| 12 | 环境化学污染物危险度评价的“基准剂量法”显示文摘 | 夏世钧 张家放 王增珍 | 2005 | 环境与职业医学2005,22,2: | 19 |
| 13 | Timing of Holocene sea-level highstands by mass spectro-metric U-series ages of a coral reef from Leizhou Peninsula, South China Sea显示文摘Systematic mass spectrometric 230Th ages are reported for a Ponies coral reef terrace from Dengloujiao, Leizhou Peninsula, South China Sea. Seven episodes of coral growth were recognized in this terrace: 7125±96, 6764±29, 5826±37, 5006±54, 2543±24, 1915±15, and 1513±22 calendar years before present (cal. aBP). 50% of the coral age popula-tion fall between 7200 and 6600 cal. aBP, marking post-glacial stabilization of global sea level. Considering the facts that (i) Dengloujiao reef flat was measured at 1.6-2.5 m above modern tidal datum plane; (ii) modern Parties corals in the South China Sea are living at least ~1 m below the modern tidal datum plane; (iii) the top 20-30 cm of the reef was eroded; and (iv) crustal subsidence in the region since mid-Holocene was negligible, we conclude that the above age groups record at least two major periods (7200-5000 and 2500-1500 cal. aBP) of high sea-level at least 2.9-3.8 m above the present-day level. | ZHAO Jianxin & YU KefuDepartment of Earth Sciences, University of Queensland, Brisbane, Qld 4072, Australia (e-mail: j.zhao@earth.uq.edu.au) South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 501301, China (e-mail: kefuyu@scsi | 2002 | Chinese Science Bulletin2002,47,4: | 18 |
| 14 | Reconstruction of paleocoastlines for the northwestern South China Sea since the Last Glacial Maximum显示文摘The range of relative sea level rise in the northwestern South China Sea since the Last Glacial Maximum was over 100 m. As a result, lowland regions including the Northeast Vietnam coast, Beibu Gulf, and South China coast experienced an evolution from land to sea. Based on the principle of reconstructing paleogeography and using recent digital elevation model, relative sea level curves, and sediment accumulation data, this paper presents a series of paleogeographic scenarios back to 20 cal. ka BP for the northwestern South China Sea. The scenarios demonstrate the entire process of coastline changes for the area of interest. During the late glacial period from 20 to 15 cal. ka BP, coastline slowly retreated, causing a land loss of only 1×104 km2, and thus the land-sea distribution remained nearly unchanged. Later in 15-10 cal. ka BP coastline rapidly retreated and area of land loss was up to 24×104 km2, causing lowlands around Northeast Vietnam and South China soon to be underwater. Coastline retreat continued quite rapidly during the early Holocene. From 10 to 6 cal. ka BP land area had decreased by 9×104 km2, and during that process the Qiongzhou Strait completely opened up. Since the mid Holocene, main controls on coastline change are from vertical crustal movements and sedimentation. Transgression was surpassed by regression, resulting in a land accretion of about 10×104 km2. | HARFF Jan MEYER Michael | 2009 | Science China Earth Sciences2009,52,8: | 18 |
| 15 | Silymarin in non alcoholic fatty liver disease显示文摘AIM: This study was undertaken to evaluate the hepatic effects of silybum marianum on non alcoholic fatty liver disease (NAFLD). METHODS: In 72 patients affected by NAFLD, main metabolic, hepatic and anti-inflammatory parameters were assayed after 3 mo of a restricted diet and before silymarin treatment (twice a day orally). The brightness of liver echography texture (hepatorenal ratio brightness) was also defined at same time. These evaluations were repeated after 6 mo of treatment. RESULTS: Serum levels of some metabolic and anti-inflammatory data nonsignificantly lowered after 6 mo of silymarin. On the contrary, Steato test, alanine aminotransferase (ALT), aspartate aminotransferase (AST) and gamma-glutamyl transpeptidase were significantly (P < 0.001) reduced. Instead, the AST/ALT ratio unchanged. Finally, the hepatorenal brightness ratio, as an index of hepatic steatosis, significantly (P < 0.05) dropped. CONCLUSION: The obtained results indicate that silymarin appears to be effective to reduce the biochemical, inflammatory and ultrasonic indices of hepatic steatosis. Some parameters indicative of early stage of atherosclerosis were also lowered. | Fulvio Cacciapuoti Anna Scognamiglio Rossella Palumbo Raffaele Forte Federico Cacciapuoti | 2013 | World Journal of Hepatology2013,5,3: | 17 |
| 16 | 追踪不可压缩两相流相界面的CLSVOF方法显示文摘根据CLSVOF方法的基本思想,将VOF和Level Set两种方法结合起来,用于追踪不可压缩两相流相界面的计算。通过对经典的两相流流动问题的计算,研究了CLSVOF方法对对流输运方程和动量输运方程计算精度的影响,并与VOF方法和Level Set方法进行了对比。研究结果表明:求解对流输运方程时,CLSVOF方法的计算精度明显高于Level Set方法;求解动量输运方程时,CLSVOF方法产生的虚假速度接近于0,基本克服了利用VOF方法求解动量输运方程时的虚假速度势问题。 | 宋云超 王春海 宁智 | 2011 | 农业机械学报2011,42,7: | 17 |
| 17 | Relationship between homocysteine level and prognosis of elderly patients with acute ischemic stroke treated by thrombolysis with recombinant tissue plasminogen activator显示文摘BACKGROUND Acute ischemic stroke(AIS)is mainly caused by cerebral blood flow disorders,which further leads to ischemic brain necrosis or encephalomalacia.The role of homocysteine(Hcy),an independent risk factor for cardiovascular disease,in the development of atherosclerosis is gradually revealed.However,studies are still rare and little is known about the relationship of Hcy level with the prognosis.AIM To explore the relationship between Hcy level and prognosis in elderly patients with AIS after thrombolytic therapy with recombinant tissue plasminogen activator(rtPA).METHODS A total of 120 patients with acute ischemic stroke who were admitted to Jingzhou Central Hospital and underwent recombinant tissue plasminogen activator treatment were randomly selected from January 2017 to December 2018.They were divided into two groups according to the level of Hcy,with 60 patients in each group.Patients with Hcy≥18.54 umol/L were included into a high-level group and those with Hcy<18.54 umol/L were included into a low-level group.The outcomes were analyzed in the two groups after the treatment.RESULTS The National institute of Health Stroke Scale(NIHSS)scores were significantly higher in the high-level group than in the low-level group before and 1 h after the treatment(P<0.05).There was no significant difference in NIHSS scores between the two groups at 12 and 24 h after the treatment(P>0.05).The Modified Rankin scale(MRS)scores were significantly higher in the high-level group than in the low-level group before and 1 h after the treatment(P<0.05).There was no significant difference in MRS scores between the two groups at 12 and 24 h after the treatment(P>0.05).NIHSS and MRS scores were positively correlated with the prognosis after thrombolytic therapy(P<0.05).CONCLUSION The level of Hcy is closely related to the prognosis of elderly patients with acute ischemic stroke,and after rtPA treatment,the prognosis of elderly patients is improved significantly. | Juan Li Fan Zhou Feng-Xue Wu | 2019 | World Journal of Clinical Cases2019,7,22: | 16 |
| 18 | Lipid levels in serum and cancerous tissues of colorectal cancer patients显示文摘AIM:To investigate the correlations between lipid metabolism disorder and the occurrence and development of colorectal cancer by monitoring the alterations in lipid levels in cancerous tissue and serum in patients with colorectal cancer.METHODS:The levels of total and free cholesterol(TCH and FCH),triglycerides(TG),low density lipoprotein-cholesterol(LDL-C),high density lipoprotein-cholesterol(HDL-C),apolipoprotein A1(ApoA-1)and ApoB in serum of 206 patients with colorectal cancer,70patients with benign colorectal disease and 300 healthy participants,and in the cancerous tissue and paracancerous tissue of 152 patients with colorectal cancer were measured with an Olympus 600 auto-biochemical analyzer.The obtained data were statistically analyzed.RESULTS:Serum FCH level was significantly higher(1.9±0.4 mmol/L vs 1.3±0.3 mmol/L,1.9±0.4 mmol/L vs 1.2±0.4 mmol/L,P<0.05),whereas serum levels of TCH,LDL-C,ApoA-I and ApoB were significantly lower in patients with colorectal cancer than in patients with benign colorectal disease and healthy controls.The levels of FCH and TG in cancerous tissue were significantly lower(14.5±9.6μmol/g vs 19.3±13.9μmol/g,P<0.05;16.3±19.8μmol/g vs 44.1±38.1μmol/g,P<0.05),whereas HDL-C level was significantly higher(7.9±4.5μmol/g vs 5.7±3.9μmol/g,P<0.01)in cancerous tissue than in paracancerous tissue.The levels of TCH and TG in serum and the levels of TCH and HDL-C in cancerous tissue in patients with colorectal cancer were significantly correlated with TNM stage.The levels of TCH and LDL-C in serum were significantly lower,whereas HDL-C level in cancerous tissue was significantly higher in patients with lymph node metastasis than in patients without lymph node metastasis.The levels of TCH,FCH,TG,HDL-C and LDL-C in cancerous tissue were not significantly different from those in paracancerous tissue.The serum levels of FCH and TG were significantly higher,whereas serum HDL-C levels were significantly lower in patients with rectum cancer than in patients with colon cancer.CONCLUSION:The disordered and abnormally altered levels of lipids in cancerous tissue and serum of patients with colorectal cancer may be correlated with the occurrence and development of colorectal cancer. | Xin Zhang Xian-Wen Zhao Dong-Bo Liu Cun-Zhi Han Li-Li Du Jie-Xiang Jing Yan Wang | 2014 | World Journal of Gastroenterology2014,20,26: | 16 |
| 19 | 基于Level Set方法的点采样曲面测地线计算及区域分解显示文摘点采样物体的几何处理是当前造型领域中的研究热点之一,如何有效地对点采样曲面进行区域分解是几何处理的基础性工作.该文首先提出了一种基于Level Set方法的点采样曲面上两点间最短路径的计算方法,用以解决区域分解中的边界曲线生成问题.为了保证求解Level Set微分方程的稳定性,文章采用移动最小平方(MLS)方法对点采样曲面进行均匀重采样和去噪音处理.在此基础上,又进一步提出了一个基于 Level Set方法的点采样曲面区域拾取算法.最后给出了上述算法在点采样物体的几何处理中的应用实例.实验结果表明该文提出的算法稳定、快速且容易实现. | 肖春霞 冯结青 缪永伟 郑文庭 彭群生 | 2005 | 计算机学报2005,28,2: | 16 |
| 20 | 抑郁症的残留症状与药物治疗显示文摘临床治愈(remission of symptoms)与功能的恢复(fullreturn to the patient's baseline level of functioning)是抑郁症治疗的主要目标.而临床上要达到这一目标并非易事,受到很多因素的影响,其中,抑郁症的残留症状(residualsymptoms)就是最重要的影响因素之一.抑郁症的残留症状最常见的有两大类,一类是抑郁症状本身没有完全缓解,比如抑郁心境,兴趣、动力、欲望、精神运动性损害、内疚感、自杀意念等没有缓解。 | 李凌江 | 2013 | 中华精神科杂志2013,46,6: | 16 |