近25 a 银川市城市化进程中热力景观格局演变分析

Abstract： Based on the Landsat images and statistical data，in this paper the urbanization process and thermal landscape dynamics of Yinchuan City were analyzed． The objectives of this study were as follows: ① To analyze the spatial and dynamic characteristics of urban thermal landscapes based on the landscape pattern index; ② To assess the influence of the urbanization process on the thermal landscapes; ③ To understand the relationship between the land use pattern and the land surface temperature ( LST) based on the distribution index． The results showed that there was a significant heat-island effect in Yinchuan City，and the high temperature area was consistent with the built-up area and the unused land． LST declined from the downtown to the suburbs，and an obvious difference of the dynamic characters of the thermal landscapes could be identified at the different stages of urbanization． LST for various land use had obvious discrepancies，the mean LST for the land use types was in a descending order of unused land，construction land，green land and water body． Different land use types had different thermal distribution at different stages of urbanization． The land use pattern influenced the urban thermal environment，especially the spatial distribution of green land and unused land affected LST more significantly

Competition Strategy of China UnionPay Mobile Payment

二十一世纪以来，科技水平的飞速发展，将人们带入了移动互联网时代，引起社会各行各业发生创新性的巨大变革。支付作为传统金融领域的一部分，与人们的生活紧密相联。在移动互联网兴起的浪潮中，支付也在不断地进行创新性的变革。移动支付以其随时、随地、安全、便捷等优点，继互联网支付之后，开始走进人们的视线，并呈现出巨大的发展潜力，深刻影响社会生活的各个领域。广阔的市场前景，使得越来越多的机构和企业参与其中，加大对移动支付领域的投入，这其中既有传统的金融机构、互联网背景的第三方支付公司，也有智能终端厂商以及其它一些公司。 在移动互联网时代，中国银联以及银联体系下的各公司，作为中国银行卡标准的制定者、银行卡受理...In the 21st century, the rapid development of science and technologybrings people into the mobile Internet era and causes innovative changes in the social life. The payment as a part of the traditional financial sector closely links with people's lives.It also continues to make innovative changes. After the internet payment, the mobile payment with its safety and convenience makes a great impact o...学位：工商管理硕士院系专业：管理学院_工商管理硕士(工商管理硕士)学号：1792013115093

飲食文化中食具的使用功能演化及設計方向的研究

[[volume]]11

秋海棠化学成分的研究

从秋海棠中分得６个化合物，经ＴＬＣ、熔点测定、１ＨＮＭＲ和１３ＣＮＭＲ鉴定为β－谷甾醇、β－香树素、胡萝卜甙、豆甾醇、豆甾醇－３－β－Ｄ－吡喃葡萄糖甙和４′，５，７－三羟基酮－６－Ｏ－β－Ｄ－吡喃葡萄糖甙，均为首次从该植物得到

利用改良Nest-tetra-primerspecificPCR技术对两种石斑鱼的鉴别

云纹石斑鱼(EPInEPHEluS MOArA)和褐石斑鱼(E.brunEuS)为石斑鱼属内近缘种,外形相似常被混淆.本研究改良建立了nEST-TETrA-PrIMEr SPECIfIC PCr方法,获得了云纹石斑鱼和褐石斑鱼线粒体dnAnd2基因内的3个特异性条带,分别为内参序列nC1(394bP)、特异性条带nd2-M(268bP)和nd2-b(122bP),以及核基因组中核糖体dnAITS1区的5个特异性条带,分别为内参序列nC2(588bP)、nC3(563bP),特异性条带rdnA-M(426bP)、ITS1-M(488bP)和ITS1-b(304bP).研究结果不仅为两种石斑鱼的鉴别提供了稳定、可靠、快捷的特异性分子标记,而且也为鱼类近缘种的dnA鉴别提供了新的途径.国家自然科学基金(批准号:40576064);国家“八六三”计划(项目编号:2006AA10A414)资助项

Sulfate removal effect of molasses alcohol wastewater pretreated by physical and chemical methods and its biogas production performance

Molasses alcohol wastewater normarlly contains high quantity of SO4 which can restrain the production of the biogas. In this paper, we used the activated carbon, Ba Cl2·2H2O, Ca（OH）2 and iron carbon micro cell to pretreat the molasses alcohol wastew

胃肠道间质瘤的CT影像学征象及其病变危险度分级的临床分析

目的探究胃肠道间质瘤(GIST)的CT影像学征象和病变危险度分级。方法方便选择2011年4月—2017年4月该院GIST患者80例,均采取多层螺旋CT横断位扫描,对其影像学征象、病变危险度分级展开回顾性分析。结果46例低度危险,23例中度危险,11例高度危险;不同危险程度的患者其肿瘤生长方式、平扫密度、最大径等指标对比差异有统计学意义(P<0.05)。结论 CT影像学应用在GIST诊断中能通过分析其征象判定病变危险度,进而提高治愈率