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题目:中国上市公司偏好股权融资:非制度性因素

系部名称:经济管理系专业班级:会计082班

学生姓名:任民学号: 200880444228 指导教师:冯银波教师职称:讲师

年月日

译文:

中国上市公司偏好股权融资:非制度性因素

国际商业管理杂志 2009.10

摘要:本文把重点集中于中国上市公司的融资活动,运用西方融资理论,从非制度性因素方面,如融资成本、企业资产类型和质量、盈利能力、行业因素、股权结构因素、财务管理水平和社会文化,分析了中国上市公司倾向于股权融资的原因,并得出结论,股权融资偏好是上市公司根据中国融资环境的一种合理的选择。最后,针对公司的股权融资偏好提出了一些简明的建议。

关键词:股权融资,非制度性因素,融资成本

一、前言

中国上市公司偏好于股权融资,根据中国证券报的数据显示,1997年上市公司在资本市场的融资金额为95.87亿美元,其中股票融资的比例是72.5%,,在1998年和1999年比例分别为72.6%和72.3%,另一方面,债券融资的比例分别是17.8%,24.9%和25.1%。在这三年,股票融资的比例,在比中国发达的资本市场中却在下跌。以美国为例,当美国企业需要的资金在资本市场上,于股权融资相比他们宁愿选择债券融资。统计数据显示,从1970年到1985年,美日企业债券融资占了境外融资的91.7%,比股权融资高很多。阎达五等发现,大约中国3/4的上市公司偏好于股权融资。许多研究的学者认为,上市公司按以下顺序进行外部融资:第一个是股票基金,第二个是可转换债券,三是短期债务,最后一个是长期负债。许多研究人员通常分析我国上市公司偏好股权是由于我们国家的经济改革所带来的制度性因素。他们认为,上市公司的融资活动违背了西方古典融资理论只是因为那些制度性原因。例如,优序融资理论认为,当企业需要资金时,他们首先应该转向内部资金(折旧和留存收益),然后再进行债权融资,最后的选择是股票融资。在这篇文章中,笔者认为,这是因为具体的金融环境激活了企业的这种偏好,并结合了非制度性因素和西方金融理论,尝试解释股权融资偏好的原因。

二、上市公司的融资成本和股权融资偏好

按照西方融资理论,债务融资的成本要比股权融资的成本低得多,因此企业首先应选择债券融资,然后才选择股权融资。我们应该了解,这种“资本成本”的概念是考虑到有机会成本投资者,也可称为预期收益,它包含了无风险利率的回报,从投资者的风险投资产生的收益风险率。它在本质上和融资成本不同,融资成本是因企业的融资活动和使用资金所产生的成本,我们可以称之为资金成本。如果资本市场是有效的,资本成本应该等于资金成本,也就是说,投资者在资本市场得到的收益应该等同于集资者支付的费用或专一的资金,这是不可避免的。但是在效率低下的资本市场,股票的价格将是不同于它的价值,因为投资者的投机行为,他们只追逐资本收益,不希望长期持有的股票和分红。因此,上市公司可以得到其资金成本比资本成本低是基金。

但是,在我国资本市场,股权融资的成本非常低,这是因为以下因素是:第一,新发行股份的高P/E比率(市盈率)。据测算,平均P/E的中国上市公司的股份比例为30和40,它也是保持在20尽管最近有所下降,但根据经验正常的P/E比率应低于20。我们可以观察到1874年至1988年在美国的P/E仅13.2,香港只有10。高P/E比率意味着高的股票发行价格,权益资金成本下降,即使考虑到在相同的股息水平上。第二,上市公司的低股息政策,股票资金的资本成本决定了分红派息率和每股价格。在中国,很多上市公司支付很少或者甚至不向股东支付红利。据统计,1998年共有488家上市公司对股东不支付股息,占所有上市公司的58.44%,在1999年有590家,比例为59.83%,甚至2000年中,中国证券监督管理委员会发行新的股息政策文件后,当时只有699家公司支付股息,比例是18.47%,公司数比1999年多,但分红比例减少了22%。因此,股权资本成本非常低。第三,股权融资没有硬性约束,如果上市公司选择股权融资,他们可以使用资金,永远也没有义务归还。上市公司大部分是由中国政府考虑到融资的风险,大股东倾向于股权融资,管理层也喜欢,因为它的股本资金成本较低的资金,不需要支付了,那么他们的地位将较稳定。我们可以从以上分析得出结论:在中国,上市公司股票资金的成本低于债券融资的成本,上市公司更愿意这些低成本的资金。

三、上市公司资产类型和质量和股权融资偏好

静态权衡理论告诉我们,财务杠杆决定于企业价自有资本的价值,而价值从税收优惠,财政困境的成本和代理成本产生。财政困境的成本和代理成本公司资产的类型和质量负相关,如果企业有更无形的资产,更多低质量的资产,这将拥有较低的流动性和较低的资产抵押价值。当这类企业面临着很大的金融风险时,就没有办法来解决其资产出售的问题。此外,因为对抵押贷款资产转变成现金的能力的关注,债权人将提高利率水平,降低金融合约其他项目的债务人规则,这些都将提高代理成本和降低公司价值。美国高通公司是无线数据和通信服务供应商,它是CDMA的发明者和用户,也占据了HDR技术。2000年3月底,其股票的市场价值在1120亿美元,但长期负债的数量是零。为什么呢?原因可能是有一些在市场上拥有类似技术的竞争对手和高通公司管理层采取保守态度的融资活动。但最重要的因素可能是高通公司拥有大量具有较低质量的可兑换无形资产将,它没有足够的资金来支付其债务时,公司的价值会下降。

在中国,许多上市公司是由国有企业改造而来的。在转型中,上市企业接管了国有企业的高效优质资产,但随着我国经济的发展,有些项目未能配合市场供求下降相应资产价值。另一方面,新的高科技公司也有许多无形的资产。国有企业和高科技公司是资本市场的大部分地区。我们可以得出结论,上市公司的资产质量却很低。这一点是P/B指数(股价与账面价值)支持的,这通常作为可以衡量的上市公司的资产质量最重要的指标。据深圳证券信息公司的统计数据,截至到2003年11月14日,共有412个公司的P/b小于2,占在中国发行A股的上市公司的比例的30%,其中,有150家公司的P/b小于1.53,而股市的加权平均P/b为2.42。资产质量低意味着债务资金会带来更多的成本,并降低上市公司的总价值。因此,在中国进行外部融资是,上市公司更倾向于股权。

四、盈利能力和股权融资偏好

财务杠杆理论告诉我们,在公司利润的小变化可能使公司的每股收益发生巨大变化。就像杠杆,我们可以通过使用它扩增行动。债券融资可以充分利用这个作用,这些公司有较高的盈利水平将得到更高的每股收益水平,因为债券资本产生的利息为股东提供的利润比股东应当支付的更多。相反,这些公司的低盈利率会降低债券的每股盈利水平,因为债券不能产生股东履行清偿的利益需求来满足足够的利润。1999年,爱迪生国际公司具有稳定的客户量和许多无形的资产,

这些提供了高层次的盈利能力来获得债务资金,其债务占其总资产的67.2%。

在发达国家或地区的上市公司始终有高盈利水平。以美国为例,在美国资本市场有许多表现优秀的上市公司,如JP摩根,其1999年每股收益为每股11.16。此外还有大众,通用,可口可乐,IBM,英特尔,微软,戴尔等,都始终是盈利的。在香港,这些公司的股票纳入恒生指数的每股盈利有超过1港元的水平,许多人都超过2港元。如长江实业(集团)有限公司,其每股盈利为7.66港元。但是,中国内陆的上市公司没有优良的盈利能力,他们的盈利能力普遍较低。以2000年为例,整体上市公司的加权平均每股收益仅为每股0.20元,加权平均P/B 为2.65元,每股8.55%,这些上市公司都负利润或低或没有利润,可以从债券资金得到的好处很少;上市公司甚至可能遭受债务资金所造成的财务危机。因此,考虑了股东利益,中国上市公司在寻求外部资金支持时,更愿意选择股权融资。

五、股权结构和股权融资偏好

上市公司不仅要面对外部融资环境的影响,而且还受到这些公司的股权结构的影响。中国上市公司股权结构具有如下特点:一,股权结构相当复杂。除了社会公众股,也有与内地和海外股票基金,国有股持股,法人股和内部职工股,转配股,A股,B股,H股和N股,以及其他。从1995年到2003年,中国公司流通股的总股本份额几乎没有变化,甚至略有下降。二,由同一企业发行有不同的价格,股息和权利的股票。三,过度集中的股票。我们利用的持股数量,以衡量股权集中的主要股东的股份数量。我们研究,这些公司从1995年至2003年的新股票公开发行,关注同一时期中国上市公司的情况。结果表明:1995至2003年,公司的每一次转让或分配的股份,其前三大股东持股比例一般都高于全部上市公司的平均水平,以及这些公司的前三大股东大多数持有40%或更高的公司的股份。在有些年,最大数量甚至是90%以上,这表明由于转移及配发股份的实施公司有相对较高的股票集中度和大股东拥有绝对控制权。总之,转让股份及配发额外股份发行的相关公司的所有权集中结构和公司的融资政策,主要是受大股东的控制。

中国上市公司特殊的股权结构影响了融资活动。由于国有股,法人股,社会流通股,外资股的股东有不同的目标,融资偏好的方式各不相同,他们的偏好影响上市公司的融资结构。控股股东,为满足自己的目标进行融资决策。当与其他

股东的利益目标的冲突时,他们往往损害了其他股东的利益。作为公司的第一大股东,政府有多个目标,而不是始终以市场为导向,更喜欢使用诸如股票资金,以维护国有资产的安全,从而,导致上市公司偏好股权融资。债务融资为还清票面价值和利息带来了更大的压力,因此,国有企业对债券资金呈现出较为进攻的态度,又因为中国国有控股上市公司在所有上市公司中的绝对地位,上市公司偏好股权成为了一种合理的现象。

附注:本文摘自“国际商业管理杂志”2009年10月。

原文:

Chinese Listed Companies Preference to Equity Fund:

Non-Systematic Factors

Abstract :This article concentrates on the listed companies’ financing activities in C hina, analyses the reasons that why the listed companies prefer to equity fund from the aspect of non-systematic factors by using western financing theories, such as financing cost, types and qualities of the enterprises’ assets, profitability, industry fa ctors, shareholding structure factors, level of financial management and society culture, and concludes that the preference to equity fund is a reasonable choice to the listed companies according to Chinese financing environment. At last, there are some co ncise suggestions be given to rectify the companies’ preference to equity fund.

Keywords: Equity fund, Non-systematic factors, financial cost

1. Introduction

The listed companies in China prefer to equity fund, According to the statistic data showed in , the amount of the listed companies finance in capital market account to 95.87 billions in 1997, among which equity fund take the proportion of 72.5%, and the proportion is 72.6% in 1998 and 72.3% in 1999, on the other hand, the proportion of debt fund to total fund is respective 17.8%, 24.9% and 25.1% in those three years. The proportion of equity fund to total fund is lower in the developed capital market than that in China. Take US for example, when American enterprises need to fund in the capital market, they prefer to debt fund than equity fund. The statistic data shows that, from 1970 to 1985, the American enterprises’ debt fund financed occupied the 91.7% proportion of outside financing, more than equity fund. Yan Dawu etc. found that, approximately 3/4 of the listed companies preferred to equity fund in China. Many researchers agree upon that the listed companies’ outside financing following this order: first one is equity fund, second one is convertible bond, third one is short-term liabilities, last one is long-term liabilities. Many researchers usually analyze our national listed companies’ preference to equity fund with the systematic factors arising in the reform of our national economy. They thought that it just because of those systematic facts that made the listed companies’ financial activities betray to western classical financing theory. For example, the “picking order” theory claims that when enterprise need fund, they should turn to inside fund (depreciation and retained earnings) first, and then debt fund, and the last choice is equity fund. In this article, the author thinks that it is because of the specific financial environment that activates the enterprises’ such preference, and try to interpret the reasons of that preference to equity fund by combination of non-systematic factors and western financial theories.

2. Financings cost of the listed company and preference to equity fund

According to western financing the theories, capital cost of equity fund is more than capital cost of debt fund, thus the enterprise should choose debt fund first, then is the turn to equity fund when it fund outside. We should understand that this conception of “capital cost” is taken into account by investors, it is somewhat opportunity cost of the investors, can also be called expected returns. It contains of risk-free rate of returns and risk rate of returns arising from the investors’ risk investment. It is different with financing cost in essence. Financing cost is the cost arising from enterprises’ financing activities and using fund, we can call it fund cost. If capital market is

efficient, capital cost should equal to fund cost, that is to say, what investors gain in capital market should equal to what fund raisers pay, or the transfer of fund is inevitable. But in an inefficient capital market, the price of stock will be different from its value because of investors’ action of speculation; they only chase capital ga in and don’t want to hold the stocks in a long time and receive dividends. Thus the listed companies can gain fund with its fund cost being lower than capital cost.

But in our national capital market, capital cost of equity fund is very low; it is because of the following factors: first, the high P/E Ratio (Price Earning Ratio) of new issued shares. According to calculation, average P/E Ratio of Chinese listed companies’ shares is between 30 and 40, it also is maintained at 20 although drops somewhat recently. But the normal P/E Ratio should be under 20 according to experience. We can observe the P/E was only 13.2 from 1874 to 1988 in US, and only 10 in Hong Kong. High P/E Ratio means high share issue price, then the capital cost of equity fund drops even given the same level of dividend. Second, low dividend policy in the listed companies, capital cost of equity fund decided by dividend pay-out ratio and price of per share. In China, many listed companies pay little or even no dividends to their shareholders. According to statistic data, there were 488 listed companies paid no dividend to their shareholders in 1998, 58.44 percents of all listed companies, there were 590, 59.83 percents in 1999, even 2000 in which China Securities Regulatory Commission issue new files to rule dividend policy of companies, there were only 699 companies which pay dividends, 18.47 percents more than that in 1999, but dividend payout ratio deduce 22%. Thus capital cost of equity is very low. Third, there is no rigidity on equity fund, if the listed companies choose equity fund, they can use the fund forever and has no obligation to return this fund. Most of listed companies are controlled by Government in China, taking financing risk into account, the major stockholders prefers to equity fund. The management also prefer equity fund becau se its lower fund cost and needn’t to be paid off, then their position will be more stable than financing in equity fund. We can conclude from the above analysis that cost of equity fund is lower than cost of debt fund in Chinese listed companies and the listed companies prefer to such low-cost fund.

3. Types and qualities of assets in listed companies and preference to equity fund

Static Trade-off Theory tells us, the value of enterprise with financial leverage is decided by the value of self-owned capital; value arising from tax benefit, cost of financial embarrassment and agency cost. Cost of financial embarrassment and agency cost are negative correlative to the types and qualities of companies’ assets, if the enterprise has more intangible asset s, more assets with lower quality, it will has lower liquidity and its assets have lower mortgage value. When this kind of enterprise faces to great financial risk, it will have no way to solve its questions by selling its assets. Furthermore, because care for the ability of turning into cash of the mortgage assets, the creditors will high the level of rate and lay additional items in financial contract to rule the debtor’s action, all of those will enhance the agency cost and deduce the companies’ value. Qualcomm is supplier of wireless data and communication service in America, it is the inventor and user of CDMA and it also occupies the technology of HDR. The market value of its share is 1120 billions dollars at the end of March, 2000, but the quantities of long-term liabilities is zero. Why? Some reasons may be that there are some competitors in the market who own analogous technologies and the management of Qualcomm Company takes conservative attitude in financing activities. But the most important factor may be Qualcomm Company owns a mass of intangible assets which will have lower convertibility and the company’s value will decline when

it has no enough money to pay for its debt.

Many listed companies in China are transformed from the national enterprises. In the transformation, these listed companies take over the high-quality assets of the national enterprises, but with the development of economy, some projects can not coincide with the market demand and the values of relative assets decline. On the other hand, there are many intangible assets in new high-tech companies. State-owned companies and high-tech companies are the most parts of the capital market. We can conclude that the qualities of listed companies’ assets are very low. This point is supported by the index of P/B (Price-to-Book value) which is usually thought as one of the most important indexes which can weigh the qualities of the listed companies’ assets. According to statistic data coming from Shenzhen Securities Information Company, by the end of November 14, 2003, there were 412 companies whose P/B is less than 2, take the 30% proportions of total listed companies which issue A-share in China, among them, there were 150 companies whose P/B is less than 1.53, and weighted average P/B of the stock market is 2.42. Lower qualities of assets means more cost may be brought out from debt fund and lower total value of the listed companies. Thus the listed companies prefer to equity fund when need outside financial support in China.

4. Profitability and preference to equity fund

Financial Leverage Theory tells us that a small change in company’s profit may make great change in company’s EPS (Earnings per share). Just like leverage, we can get an amplified action by use of it. Debt fund can supply us with this leverage, by use of debt fund, these companies which have high level of profitability will get higher level of EPS because debt fund produces more profit for shareholders than interest shareholder shall pay. On the contrary, these companies which have low level of profitability will get lower level of EPS by use of debt fund because debt fund can not produce enough profit for shareholder to fulfill the demand of paying off the interests. Edison International Company has steady amount of customers and many intangible assets, these supply it with high level of profitability and ability to gain debt fund, its debt account to 67.2% proportions of its total assets in 1999.

Listed companies in developed countries or regions always have high level of profitability. Take US for example, there are many listed companies which have excellent performance in American capital market when do business, such as J.P Morgan, its EPS is $11.16 per share in 1999. Besides it, GM, GE, Coca Cola, IBM, Intel, Microsoft, Dell etc. all always are profitable. In Hong Kong, most of those companies whose stock included in Hang Sang Index have the level of EPS more than 1 HKD, many are more than 2 HKD. Such as Cheung Kong (Holdings) Limited, its EPS is 7.66 HKD. But listed companies do not have such excellent performance in profitability in China inland. Their profitability is common low. Take the performance of 2000 for example, the weighted average EPS of total listed companies is only 0.20 Yuan per share, and the weighted average P/B is 2.65 Yuan per share, 8.55 percents of these listed companies have negative profit. With low or no profit, the benefit nixes, listed companies’ preference to equity fund is a reasonable phenomenon. Can be gained from debt fund is very little; the listed companies can even suffer from the financial distress caused by debt fund. So with the consideration of shareholders’ interest, the listed companies prefer to equity fund when need outside financial support in China.

5. Shareholding structure factors and preference to equity fund

Listed companies not only face to external financing environmental impacts, but also the structure of the companies shares. Shareholding structure of Chinese listed companies shows characteristics

as followed: I. Ownership structure is fairly complex. In addition to the public shares, there are shares held with inland fund and foreign stocks, state-owned shares, legal person shares, and internal employee shares, transferred allotted shares, A shares, B shares, H shares And N shares, and other distinction. From 1995 to 2003, Chinese companies’ outstanding shares of the total equity share almost have no change, even declined slightly. II. There are different prices, dividends, and rights of shares issued by same enterprise. III. The over-concentration of shares. We use the quantity of shares of the three major shareholders who top the list of shareholders of the listed companies to measure the concentration of stock. We study he concentration of stock of these companies which issue new share publicly in the years from 1995 to 2003 and focus on the situation of Chinese listed companies over the same period. The results showed that: from 1995 to 2003, the company-Which once transferred or allotted shares-whose top three s hareholders’ shareholding ratio are generally higher than the average level of all the listed companies, and most of these company's top three shareholders holding 40 percent or higher percent of companies’ shares. In some years, the maximum number even is more than 90 percent, indicating that the company with the implementation of transferred and allotted shares have relatively high concentration rate of shares and major shareholders have absolute control over it. In short, transferring allotting shares and the issuance of additional shares have a certain relevance to the company’s concentration of ownership structure; the company's financing policy is largely controlled by the major shareholders.

Chinese listed companies’ special s hareholding structure effects its financing action. Because stockholders of the state-owned shares, legal person shares, social and outstanding shares, foreign share have a different objective function, their modes of financing preferences vary, and their preference affect the financing structure of listed companies. Controlling shareholders which hold state-owned shares account for the status of enterprises and carry out financing decisions in accordance with their own objective function. When the objective function conflict with the other shareholders benefit, they often damage the interests of other shareholders by use of the status of controlling. As the first major shareholders of the companies, government has multiple objectives, not always market-oriented, it prefers to use safe fund such as equity fund to maintain the value of state-owned assets, thus resulting in listed company’s preference to equity financing. Debt financing bring business with greater pressure to pay off the par value and interests. Therefore, the state-owned companies are showing a more offensive attitude to debt fund, again because of Chinese state-controlled listed companies have the absolute status in all listed company.

From: International Journal of Business and Management; October, 2009.

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毕业论文外文翻译模版

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1 外文翻译的基本内容 应选择与本课题密切相关的外文文献(学术期刊网上的),译成中文,与原文装订在一起并独立成册。在毕业答辩前,同论文一起上交。译文字数不应少于3000个汉字。 2 书写规范 2.1 外文翻译的正文格式 正文版心设置为:上边距:3.5厘米,下边距:2.5厘米,左边距:3.5厘米,右边距:2厘米,页眉:2.5厘米,页脚:2厘米。 中文部分正文选用模板中的样式所定义的“正文”,每段落首行缩进2字;或者手动设置成每段落首行缩进2字,字体:宋体,字号:小四,行距:多倍行距1.3,间距:前段、后段均为0行。 这部分工作模板中已经自动设置为缺省值。 2.2标题格式 特别注意:各级标题的具体形式可参照外文原文确定。 1.第一级标题(如:第1章绪论)选用模板中的样式所定义的“标题1”,居左;或者手动设置成字体:黑体,居左,字号:三号,1.5倍行距,段后11磅,段前为11磅。 2.第二级标题(如:1.2 摘要与关键词)选用模板中的样式所定义的“标题2”,居左;或者手动设置成字体:黑体,居左,字号:四号,1.5倍行距,段后为0,段前0.5行。 3.第三级标题(如:1.2.1 摘要)选用模板中的样式所定义的“标题3”,居左;或者手动设置成字体:黑体,居左,字号:小四,1.5倍行距,段后为0,段前0.5行。 标题和后面文字之间空一格(半角)。 3 图表及公式等的格式说明 图表、公式、参考文献等的格式详见《吉林化工学院本科学生毕业设计说明书(论文)撰写规范及标准模版》中相关的说明。

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Statistical hypothesis testing Adriana Albu,Loredana Ungureanu Politehnica University Timisoara,adrianaa@aut.utt.ro Politehnica University Timisoara,loredanau@aut.utt.ro Abstract In this article,we present a Bayesian statistical hypothesis testing inspection, testing theory and the process Mentioned hypothesis testing in the real world and the importance of, and successful test of the Notes. Key words Bayesian hypothesis testing; Bayesian inference;Test of significance Introduction A statistical hypothesis test is a method of making decisions using data, whether from a controlled experiment or an observational study (not controlled). In statistics, a result is called statistically significant if it is unlikely to have occurred by chance alone, according to a pre-determined threshold probability, the significance level. The phrase "test of significance" was coined by Ronald Fisher: "Critical tests of this kind may be called tests of significance, and when such tests are available we may discover whether a second sample is or is not significantly different from the first."[1] Hypothesis testing is sometimes called confirmatory data analysis, in contrast to exploratory data analysis. In frequency probability,these decisions are almost always made using null-hypothesis tests. These are tests that answer the question Assuming that the null hypothesis is true, what is the probability of observing a value for the test statistic that is at [] least as extreme as the value that was actually observed?) 2 More formally, they represent answers to the question, posed before undertaking an experiment,of what outcomes of the experiment would lead to rejection of the null hypothesis for a pre-specified probability of an incorrect rejection. One use of hypothesis testing is deciding whether experimental results contain enough information to cast doubt on conventional wisdom. Statistical hypothesis testing is a key technique of frequentist statistical inference. The Bayesian approach to hypothesis testing is to base rejection of the hypothesis on the posterior probability.[3][4]Other approaches to reaching a decision based on data are available via decision theory and optimal decisions. The critical region of a hypothesis test is the set of all outcomes which cause the null hypothesis to be rejected in favor of the alternative hypothesis. The critical region is usually denoted by the letter C. One-sample tests are appropriate when a sample is being compared to the population from a hypothesis. The population characteristics are known from theory or are calculated from the population.

毕业论文 外文翻译#(精选.)

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毕业论文外文翻译模板

农村社会养老保险的现状、问题与对策研究社会保障对国家安定和经济发展具有重要作用,“城乡二元经济”现象日益凸现,农村社会保障问题客观上成为社会保障体系中极为重要的部分。建立和完善农村社会保障制度关系到农村乃至整个社会的经济发展,并且对我国和谐社会的构建至关重要。我国农村社会保障制度尚不完善,因此有必要加强对农村独立社会保障制度的构建,尤其对农村养老制度的改革,建立健全我国社会保障体系。从户籍制度上看,我国居民养老问题可分为城市居民养老和农村居民养老两部分。对于城市居民我国政府已有比较充足的政策与资金投人,使他们在物质和精神方面都能得到较好地照顾,基本实现了社会化养老。而农村居民的养老问题却日益突出,成为摆在我国政府面前的一个紧迫而又棘手的问题。 一、我国农村社会养老保险的现状 关于农村养老,许多地区还没有建立农村社会养老体系,已建立的地区也存在很多缺陷,运行中出现了很多问题,所以完善农村社会养老保险体系的必要性与紧迫性日益体现出来。 (一)人口老龄化加快 随着城市化步伐的加快和农村劳动力的输出,越来越多的农村青壮年人口进入城市,年龄结构出现“两头大,中间小”的局面。中国农村进入老龄社会的步伐日渐加快。第五次人口普查显示:中国65岁以上的人中农村为5938万,占老龄总人口的67.4%.在这种严峻的现实面前,农村社会养老保险的徘徊显得极其不协调。 (二)农村社会养老保险覆盖面太小 中国拥有世界上数量最多的老年人口,且大多在农村。据统计,未纳入社会保障的农村人口还很多,截止2000年底,全国7400多万农村居民参加了保险,占全部农村居民的11.18%,占成年农村居民的11.59%.另外,据国家统计局统计,我国进城务工者已从改革开放之初的不到200万人增加到2003年的1.14亿人。而基本方案中没有体现出对留在农村的农民和进城务工的农民给予区别对待。进城务工的农民既没被纳入到农村养老保险体系中,也没被纳入到城市养老保险体系中,处于法律保护的空白地带。所以很有必要考虑这个特殊群体的养老保险问题。

大学毕业论文---软件专业外文文献中英文翻译

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Infrared Remote Control System Abstract Red outside data correspondence the technique be currently within the scope of world drive extensive usage of a kind of wireless conjunction technique,drive numerous hardware and software platform support. Red outside the transceiver product have cost low, small scaled turn, the baud rate be quick, point to point SSL, be free from electromagnetism thousand Raos etc.characteristics, can realization information at dissimilarity of the product fast, convenience, safely exchange and transmission, at short distance wireless deliver aspect to own very obvious of advantage.Along with red outside the data deliver a technique more and more mature, the cost descend, red outside the transceiver necessarily will get at the short distance communication realm more extensive of application. The purpose that design this system is transmit cu stomer’s operation information with infrared rays for transmit media, then demodulate original signal with receive circuit. It use coding chip to modulate signal and use decoding chip to demodulate signal. The coding chip is PT2262 and decoding chip is PT2272. Both chips are made in Taiwan. Main work principle is that we provide to input the information for the PT2262 with coding keyboard. The input information was coded by PT2262 and loading to high frequent load wave whose frequent is 38 kHz, then modulate infrared transmit dioxide and radiate space outside when it attian enough power. The receive circuit receive the signal and demodulate original information. The original signal was decoded by PT2272, so as to drive some circuit to accomplish

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(英文原文装订在前)

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清晰,中文翻译要与英文一一对应。 6.翻译中的中文文章字体为小四,所有字母、数字均为英文格式下的,中文为宋体, 标准字符间距。 7.原文中的图片和表格可以直接剪切、粘贴,但是表头与图示必须翻译成中文。 8.图表必须居中,文章段落应两端对齐、首行缩进2个汉字字符、1.25倍行距。 例如: 图1. 蛋白质样品的PCA图谱与8-卟啉识别排列分析(a)或16-卟啉识别排列分析(b)。为了得到b 的 数据矩阵,样品用16-卟啉识别排列分析来检测,而a 是通过捕获首八卟啉接收器数据矩阵从 b 中 萃取的。

本科毕业设计外文翻译(原文)

Real-time interactive optical micromanipulation of a mixture of high- and low-index particles Peter John Rodrigo, Vincent Ricardo Daria and Jesper Glückstad Optics and Plasma Research Department, Ris? National Laboratory, DK-4000 Roskilde, Denmark jesper.gluckstad@risoe.dk http://www.risoe.dk/ofd/competence/ppo.htm Abstract: We demonstrate real-time interactive optical micromanipulation of a colloidal mixture consisting of particles with both lower (n L < n0) and higher (n H > n0) refractive indices than that of the suspending medium (n0). Spherical high- and low-index particles are trapped in the transverse plane by an array of confining optical potentials created by trapping beams with top-hat and annular cross-sectional intensity profiles, respectively. The applied method offers extensive reconfigurability in the spatial distribution and individual geometry of the optical traps. We experimentally demonstrate this unique feature by simultaneously trapping and independently manipulating various sizes of spherical soda lime micro- shells (n L≈ 1.2) and polystyrene micro-beads (n H = 1.57) suspended in water (n0 = 1.33). ?2004 Optical Society of America OCIS codes: (140.7010) Trapping, (170.4520) Optical confinement and manipulation and (230.6120) Spatial Light Modulators. References and links 1. A. Ashkin, “Optical trapping and manipulation of neutral particles using lasers,” Proc. Natl. Acad. Sci. USA 94, 4853-4860 (1997). 2. K. Svoboda and S. M. Block, “Biological applications of optical forces,” Annu. Rev. Biophys. Biomol. Struct. 23, 247-285 (1994). 3. D. G. Grier, “A revolution in optical manipulation,” Nature 424, 810-816 (2003). 4. M. P. MacDonald, G. C. Spalding and K. Dholakia, “Microfluidic sorting in an optical lattice,” Nature 426, 421-424 (2003). 5. J. Glückstad, “Microfluidics: Sorting particles with light,” Nature Materials 3, 9-10 (2004). 6. A. Ashkin, “Acceleration and trapping of particles by radiation-pressure,”Phys. Rev. Lett. 24, 156-159 (1970). 7. A. Ashkin, J. M. Dziedzic, J. E. Bjorkholm and S. Chu, “Observation of a single-beam gradient force optical trap for dielectric particles,” Opt. Lett. 11, 288-290 (1986). 8. K. Sasaki, M. Koshioka, H. Misawa, N. Kitamura, and H. Masuhara, “Optical trapping of a metal particle and a water droplet by a scanning laser beam,” Appl. Phys. Lett. 60, 807-809 (1992). 9. K. T. Gahagan and G. A. Swartzlander, “Trapping of low-index microparticles in an optical vortex,” J. Opt. Soc. Am. B 15, 524-533 (1998). 10. K. T. Gahagan and G. A. Swartzlander, “Simultaneous trapping of low-index and high-index microparticles observed with an optical-vortex trap,” J. Opt. Soc. Am. B 16, 533 (1999). 11. M. P. MacDonald, L. Paterson, W. Sibbett, K. Dholakia, P. Bryant, “Trapping and manipulation of low-index particles in a two-dimensional interferometric optical trap,” Opt. Lett. 26, 863-865 (2001). 12. R. L. Eriksen, V. R. Daria and J. Glückstad, “Fully dynamic multiple-beam optical tweezers,” Opt. Express 10, 597-602 (2002), https://www.360docs.net/doc/304082619.html,/abstract.cfm?URI=OPEX-10-14-597. 13. P. J. Rodrigo, R. L. Eriksen, V. R. Daria and J. Glückstad, “Interactive light-driven and parallel manipulation of inhomogeneous particles,” Opt. Express 10, 1550-1556 (2002), https://www.360docs.net/doc/304082619.html,/abstract.cfm?URI=OPEX-10-26-1550. 14. V. Daria, P. J. Rodrigo and J. Glückstad, “Dynamic array of dark optical traps,” Appl. Phys. Lett. 84, 323-325 (2004). 15. J. Glückstad and P. C. Mogensen, “Optimal phase contrast in common-path interferometry,” Appl. Opt. 40, 268-282 (2001). 16. S. Maruo, K. Ikuta and H. Korogi, “Submicron manipulation tools driven by light in a liquid,” Appl. Phys. Lett. 82, 133-135 (2003). #3781 - $15.00 US Received 4 February 2004; revised 29 March 2004; accepted 29 March 2004 (C) 2004 OSA 5 April 2004 / Vol. 12, No. 7 / OPTICS EXPRESS 1417

电气专业毕业论文外文翻译分析解析

本科毕业设计 外文文献及译文 文献、资料题目:Designing Stable Control Loops 文献、资料来源:期刊 文献、资料发表(出版)日期:2010.3.25 院(部):信息与电气工程学院 专班姓学业:电气工程与自动化级: 名: 号: 指导教师:翻译日期:2011.3.10

外文文献: Designing Stable Control Loops The objective of this topic is to provide the designer with a practical review of loop compensation techniques applied to switching power supply feedback control. A top-down system approach is taken starting with basic feedback control concepts and leading to step-by-step design procedures,initially applied to a simple buck regulator and then expanded to other topologies and control algorithms. Sample designs are demonstrated with Math cad simulations to illustrate gain and phase margins and their impact on performance analysis. I. I NTRODUCTION Insuring stability of a proposed power supply solution is often one of the more challenging aspects of the design process. Nothing is more disconcerting than to have your lovingly crafted breadboard break into wild oscillations just as its being demonstrated to the boss or customer, but insuring against this unfortunate event takes some analysis which many designers view as formidable. Paths taken by design engineers often emphasize either cut-and-try empirical testing in the laboratory or computer simulations looking for numerical solutions based on complex mathematical models.While both of these approach a basic understanding of feedback theory will usually allow the definition of an acceptable compensation network with a minimum of computational effort. II. S TABILITY D EFINED Fig. 1.Definition of stability Fig. 1 gives a quick illustration of at least one definition of stability. In its simplest terms, a system is stable if, when subjected to a perturbation from some source, its response to that

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