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计算机业务应用系统的维护是业务应用中的一项重要工作。为了保障业务应用系统的正常运行,必须保证业务应用系统具有足够的运行所需资源。为此,需要监测哪个用户或应用在哪个时间段占用大量的系统资源,有目的地限制关键时刻资源的使用,从而保障业务应用系统的正常运行。例如,在业务应用系统业务的高峰期,应该限制其他用户或应用进行频繁的读写操作、对大的数据表的查询及运行长时间的处理。 相似文献
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新世纪的第二个十年开始了,有人预测十年以后的2020年,中国GDP将会超越美国,重回180年前世界第一的位置。无论是十年还是十五年,我们这代人能够见到这一天或迟或早地到来,每个人都应该认真考虑在这个重归荣光的历史大潮中,取得自己应得的那一份。其中的方法无外“参与”二字,找个好工作是参与,创业是参与,投资也是参与。 相似文献
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An increasing number of universities have moved student evaluation of faculty and courses out of the classroom, where it had resided for many years, and onto the web. The increased efficiency of the web-based administrative modality of these instruments seems self-apparent. However, whether the measures obtained using the new modality are the same as the old modality is unclear. This paper compares the results of questionnaires administered on the web with those collected from the same students while they were in class. Data from 181 course offerings over seven terms at one university were utilized. Significantly lower evaluation scores for both the instructor and the course are produced when a web-based modality is used. In general, these results did not vary for courses at different levels of matriculation or at different levels of student participation. However, the magnitude of modality differences varied between highly rated and poorly rated courses. Implications for faculty evaluation are offered. 相似文献
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业绩评价是股权激励面临的一个现实难题,由于我国至今还没有完全形成经理人员市场化的选择环境,经理职务不能完整,准确地反映其贡献的大小和能力的高低。同时.业绩考核体系也不规范.尤其是对公司管理部门的业绩评价更难得出一个比较公正的结论。因此.业绩评价成为整个期权计划中难受最大.分歧最多的部分。 相似文献
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SMARTHEATINC(睿能集团)是一家全球领先的专业提供高品质能源设备、清洁能源技术和全方位解决方案的集团公司,主要业务涉及换热设备在电力、冶金、石油化工、食品、制药、暖通空调、船舶及造纸等各个工业领域和民用领域的运用。Smart Heat得到越来越多的关注。这家名不见经传的公司是怎样异军突起,从上市前一家默默无闻的小公司如何在短短的两三年的时间发展到目前的规模并取得骄人的成绩呢? 相似文献
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Forward‐looking partial moment volatility indices are developed using state‐pricing, called the bear index (BEX) and bull index (BUX). Using S&P 500 index (SPX) option prices, we find that BEX and BUX provide superior forecasts for the lower and upper partial moments of future market realised volatility, respectively. We examine the relation between SPX returns and changes in BEX and BUX at the daily level. Results are consistent with the volatility feedback hypothesis. Further, we show that BEX may be more suitable as the ‘investor fear gauge’ than VIX. 相似文献
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中小企业直接融资发展规模日益壮大,在一定程度上弥补了信贷融资渠道萎缩的不足,但是适应各个类型企业融资需求的多层次资本市场体系还尚未建立起来,中小微企业融资功能还不够完善。整体上看,中小微企业融资渠道还比较狭窄。因此,只有不断完善中小企业信用担保体系,建立中小微企业信用评级机制,开拓多层次的融资渠道,发展债股结合、夹层融资、互联网金融等新型融资模式,创新法律法规,营造有利于中小微企业发展的融资环境,以更好地解决中小微企业融资难问题。 相似文献
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在金融领域,信息技术与金融服务的相互渗透,不断改变着金融服务的方式。近年来,一种新型银行服务——短信理财业务,正悄然出现在人们的生活中。短信理财,又名移动银行或手机银行,它是随着移动通信技术迅猛发展而出现的一种新银行服务渠道,是网络银行服务的延伸。 相似文献
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随着移动通信短信业务的蓬勃发展,越来越多的用户习惯于使用这种经济方便的沟通方式。为此,我们提出了基于短信服务的移动银行系统建设方案,在银行与客户间建立一个更加方便快捷的沟通渠道,为签约客户提供即时的账户信息、金融信息及银行非现金业务服务。该方案主要有两大功能: 相似文献
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Lisa Forsén 《Scandinavian actuarial journal》2013,2013(2-3):167-178
Summary The King-Hardy method and the Hardy method mentioned in e.g. Miller (1946, 6.4) are old, well known moment methods in Gompertz-Makeham graduation of mortality. They have poor efficiencies (Forsén, 1977, App. F.6 and F.5), measured in terms of asymptotic variance, relative to the modified minimum chi-square method which is optimal (Hoem, 1972, 6.2, 7.2). This paper shows that a modification of the moment methods mentioned, gives a method that is “almost” as efficient as the best method available, and it is easier to use in practice. 相似文献
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2005年11月21日,摩根大通董事总经理兼首席中国经济师龚方雄出席博鳌亚洲论坛企业家峰会分论坛"世界经济发展前景预测"时指出,2006年中国经济增长的风险主要是来自于三方面,分别是全球经济、政策因素和银行体系.在最近的一次记者招待会上,龚再次强调目前中国经济面临的最大风险来自于全球经济的风险.其中最为主要的是美国经济能否在高油价和全球利息处在上升阶段的情况下保持增长.然而,分析表明,鉴于中国强劲的国际收支平衡及充裕的国内流动资金,投资者在市场明朗化后将重返中国,中国经济也将持续跑赢大市,并可抵挡全球性的"完美风暴".摩根大通最近再次调整了对中国GDP的预测,今年国民生产总值增长10.6%,到明年是9.5%,比原先的预测10.1%和9%,各上调了0.5个百分点. 相似文献
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This paper examines theories of capital structure using a dataset of listed Australian companies from 1993 to 2005. Companies appear to have target leverage but they take advantage of favorable firm characteristics to achieve these targets. Issuers issue debt when they are profitable. When firms are profitable and perform well in the market, they will issue both debt and equity. 相似文献
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近期以来饱受各种传闻困扰的通用汽车(General Motors Corp.)终于可以短暂的松口气了.4月3日,这一目前仍属全球最大的汽车制造商宣布已签署正式协议,将其下属的"通用汽车金融服务公司"(General Motors Acceptance Corporation,简称GMAC)51%的股权出售给塞尔伯吕(Cerberus Capital Management)资本管理公司领衔的财团组织.这一交易将在今年第四季度完成. 相似文献
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Behavioral theories predict that firm valuation dispersion in the cross-section (“dispersion”) measures aggregate overpricing caused by investor overconfidence and should be negatively related to expected aggregate returns. This paper develops and tests these hypotheses. Consistent with the model predictions, I find that measures of dispersion are positively related to aggregate valuations, trading volume, idiosyncratic volatility, past market returns, and current and future investor sentiment indexes. Dispersion is a strong negative predictor of subsequent short- and long-term market excess returns. Market beta is positively related to stock returns when the beginning-of-period dispersion is low and this relationship reverses when initial dispersion is high. A simple forecast model based on dispersion significantly outperforms a naive model based on historical equity premium in out-of-sample tests and the predictability is stronger in economic downturns. 相似文献
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随着移动通信技术的迅速发展,短信以其强大的功能、廉价方便的服务、及时有效的发送、信息保密等特点,逐渐走入人们的生活,成为信信时代不可缺少的交流上具在国外,短信已经广泛应用于金融、保险、交通等公众服务领域,成为企业实施客户关系管理的必要组成部分, 相似文献