Assignment代写：sql questions

下面为大家整理一篇优秀的assignment代写范文- sql questions，供大家参考学习，这篇论文讨论了一个关于sql性能分析的cs作业。

Question 1 (5 marks)

Consider two relations A and B. A is of size 10,000 disk pages, and B is of size 1,000 pages. Consider the following SQL statement:

SELECT *

FROM A, B

WHERE A.a = B.a;

We wish to evaluate an equijoin between A and B, with an equality condition A.a = B.a. There are 502 buffer pages available for this operation. Both relations are stored as simple heap files. Neither relation has any indexes built on it.

Consider alternative join strategies described below and calculate the cost of each alternative. Evaluate the algorithms using the number of disk I/O’s as the cost. For each strategy, provide the formulae you use to calculate your cost estimates.

a) Page-oriented Nested Loops Join. Consider A as the outer relation. (1 mark)

b) Block-oriented Nested Loops Join. Consider A as the outer relation. (1 mark)

c) Sort-Merge Join (1 mark)

d) Hash Join (1 mark)

e) What would the lowest possible I/O cost be for joining A and B using any join algorithm and how much buffer space would be needed to achieve this cost? Explain briefly. (1 mark)

Question 2 (5 marks)

Consider a relation with the following schema:

Executives (id: integer, name:string, title:string, level: integer)

The Executives relation consists of 100,000 tuples stored in disk pages. The relation is stored as simple heap file and each page stores 100 tuples. There are 10 distinct titles in the Executives hierarchy and 20 distinct levels ranging from 0-20.

1

Suppose that the following SQL query is executed frequently using the given relation:

SELECT E.ename

FROM Executives

WHERE E.title = “CEO” and E.level > 15;

Your job is to analyze the query plans given below and estimate the cost of the best plan utilizing the information given about different indexes in each part.

a) Compute the estimated result size and the reduction factor (selectivity) of this query (1 mark)

b) Compute the estimated cost of the best plan assuming that a clustered B+ tree index on (title, level) is (the only index) available. Suppose there are 200 index pages, and the index uses Alternative 2. Discuss and calculate alternative plans. (1 mark)

c) Compute the estimated cost of the best plan assuming that an unclustered B+ tree index on (level) is (the only index) available. Suppose there are 200 index pages, and the index uses Alternative 2. Discuss and calculate alternative plans. (1 mark)

d) Compute the estimated cost of the best plan assuming that an unclustered Hash index on (title) is (the only index) available. The index uses Alternative 2. Discuss and calculate alternative plans. (1 mark)

e) Compute the estimated cost of the best plan assuming that an unclustered Hash index on (level) is (the only index) available. The index uses Alternative 2. Discuss and calculate alternative plans. (1 mark)

Question 3 (10 marks)

Consider the following relational schema and SQL query. The schema captures information about employees, departments, and company finances (organized on a per department basis).

Emp(eid: integer, did: integer, sal: integer, hobby: char(20)) Dept(did: integer, dname: char(20), floor: integer, phone: char(10)) Finance(did: integer, budget: real, sales: real, expenses: real)

Consider the following query:

SELECT D.dname, F.budget

FROM Emp E, Dept D, Finance F

WHERE E.did=D.did AND D.did=F.did

AND E.sal ≥ 59000 AND E.hobby = ‘yodeling’; 2

The system’s statistics indicate that employee salaries range from 10,000 to 60,000, and employees enjoy 200 different hobbies. There are a total of 50,000 employees and 5,000 departments (each with corresponding financial record in the Finance relation) in the database. Each relation fits 100 tuples in a page. Suppose there exists a clustered B+ tree index on (Emp.did) of size 50 pages.

a) Compute the estimated result size and the reduction factors (selectivity) of this query

(2 marks)

b) Compute the cost of the plans shown below. Assume that sorting of any relation (if required) can be done in 2 passes: 1st pass to produce sorted runs and 2nd pass to merge runs. Similarly hash join can be done in 2 passes: 1st pass to produce partitions, 2nd pass to join corresponding partitions. NLJ is a Page-oriented Nested Loops Join. Assume that did is the candidate key, and that 100 tuples of a resulting join between Emp and Dept fit in a page. Similarly, 100 tuples of a resulting join between Finance and Dept fit in a page. (8 marks, 2 marks per plan)

3

Formatting Requirements

For each question, present an answer in the following format:

Show the question number and question in black text

Show your answer in blue text

For each of the calculations provide the formulae you used to calculate your cost estimates

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英文学术论文写作技巧分析

在国外大学，一般记录研究成果的论文都算是英文学术论文，包括期刊论文、会议论文等。学术论文会比平时的essay更难，因为它要公开发表，所以要求会更加严谨。如果同学们没有掌握一些学术论文写作技巧的话，写起来会有很大的难度，下面就给大家分析一下。

1.怎样收集学术信息

在开始写论文之前，大家都要经过一个信息收集阶段。除了理科生的实验数据之外，大多数的留学生的论文信息来自于两个方面：一是书本；二是通过google搜索得来的网络文章。但是我在这里要建议大家充分利用本校图书馆的资源。其实，国外大学的图书馆和中国大学图书馆的最大区别也就是学术资源。大学图书馆除了自己馆藏的书籍和资料之外，还会付费subscribe很多database。这些database里的信息有的是学术期刊，有的是统计数据，有的则是新闻媒体的文章。

就拿商科学生来说吧。如果要寻找一些与论文有关的AFL或者BRW的新闻或文章，通过手动方式的话，非得在图书馆泡很长时间，浏览很多headline才可以找到。而如果通过学校的database的话，也就是1分钟的事情。

很多学校的database还允许你在家里通过学校的图书馆网上pathway进入查阅，十分方便。而且其信息包容量简直可以说是相当惊人。我记得我有一次甚至查到了国内和香港杂志上的文章。关于database的种类和使用方法，各个不同学校不同专业可能都会有所不同。建议大家专门向图书管理员咨询一下有关database的使用方法。(不要不好意思，这是他们的职责。)图书馆应该还有信息搜索技能培训。UTS的信息搜索训练甚至有网络版的，叫作BELL。有兴趣的学弟学妹不妨去看看。

收集到了信息，最好做一下归类整理，必要的话写一些简短的读书笔记或在资料上用不同颜色做一下标记。这个样子就会方便你今后写作过程中的查找和翻阅。

2.怎样写出有原创性的文章

有人对我说，构思一篇文章也就是brainstorm一下的事情。一篇好的论文应当是以作者对于专门领域的solid knowledge为基础的。所以构思学术文章的第一步应该是通读全部的手头资料，然后在脑子里形成一个大概的印象。你不仅要知道一些基本知识，更重要的是要知道哪些resource提出了什么样的学术观点，或者手头的哪些数据说明了哪些问题。

知道了别人的学术观点后，你可以对这些学术观点进行分类和比较。哪些人持相同观点？哪些人持不同观点？哪些人持不同观点但是有共同的出发点？哪些观点看似相同但却有些nuance？完成了这些分类和比较后，你就不难得出自己的观点了。你可以同意其中一个，也可以通通不同意，更可以把大家的学术观点综合起来变成一个新的更全面的观点。

有的论文是要求你做数据分析的。那么你就对数据信息作一些数据比较。如果可能的话，最好再设计一些图表，然后通过图表来分析和说明问题。当然，你也可以引用一些学术杂志或者新闻媒体的现成图表来进一步分析和阐述自己的观点。

西方的教学风格和国内的不同，老师通常会鼓励学生做一些creative thinking和critical thinking。所以说，如果文章能够在综合各个数据/学术观点的基础上提出自己与众不同的观点，或者能够挑战权威或传统观点的话，往往会受到老师的亲睐。当然，观点也是要建立在论证过程的基础上的，所以光有自己的观点是不够的，严密的论述过程也是很关键的。

3.学会使用THESAURUS

也许有人会说，我们的母语不是英语，要达到像外国人那样灵活应用语言的话，是不太可能的。但是我要说，我们至少可以在自己现有的基础上进行提高。而thesaurus这写作时最常用的工具我们也就不得不用！

Thesaurus有一点像我们中文的同义词字典。但是我个人觉得它的function其实要超出同义词字典。因为一些好的thesaurus也会给出一些例句，或者告诉你一些词汇语境上的差别(特别是正式用语和非正式用语)。这样一来，你的词汇和表达就会变得更加丰富和多样。而你能够在一组同义词中寻找最恰当的词汇来放到句子里的话，则必定会让你的文章表达更清晰，更具说服力。

当然，thesaurus的使用也有些局限性。毕竟它无法给出详细的词条解释和用法。所以建议大家在使用thesaurus的同时对照一下普通英语字典(推荐英英字典，因为英中或中英字典的翻译有时候会造成语言信息的遗漏)。MSWord软件本身也带thesaurus功能。大家也可以试一下。

4.怎样润色文章

（1）review的时间

凭我的经验，在文章刚刚写就的时候，人总会有种满足感。在这种满足感的指引下，你会很难发现一些错误。如果一两天不碰那篇文章，然后再回过头来看得话，你会发觉你能找出更多的错误。所以我个人建议大家，revision最好是在文章写完一到两天后再做。

（2）擅于否定自己

在修改自己文章的时候，最好设想一下如果自己是老师的话，会期望看到些什么内容。在修改文章的时候，千万不要怕大删大改。如果确定自己在某一方面确实描述得不尽人意的话，还是应该作一定修改。有的时候你会发觉改了三四遍后文章已经面目全非了。不过在这个时候你最好再回过头来看看自己的abstract和conclusion是否也要做相应的调整。总的来说，在这个阶段，你要擅于否定自己，做好做大改动的心理准备。

（3）检查文章的结构

要检查一下自己的文章是不是详略得当、是否有overstate的地方或者论述不够的地方、在逻辑推理上有没有缺陷、在章节和段落的布局是否合理、章节和段落的号码是否正确等等。

以上就是给大家总结的英文学术论文写作技巧，希望对同学们有所帮助。

想要了解更多英国论文写作技巧或者需要英国代写，请关注51Due英国论文代写平台，51Due是一家专业的论文代写机构，专业辅导海外留学生的英文论文写作，主要业务有essay代写、paper代写、assignment代写。亲们可以进入主页了解和获取更多关于论文代写以及英国留学资讯，我们将为广大留学生提升写作水平，帮助他们达成学业目标。如果您有论文代写需求，可以咨询我们的客服QQ：800020041。

Paper代写：The development of e-commerce

下面为大家整理一篇优秀的paper代写范文- The development of e-commerce，供大家参考学习，这篇论文讨论了电子商务的发展。电子商务又称作电子交易，主要利用Web 提供的通信手段在网上进行的商业贸易活动，包括通过Internet 买卖产品和提供服务。电子商务在快速发展，各种交易模式遍地开花的过程中，也日益凸显它的弊端，安全性的问题尤其明显。电子商务的劣势随着网上交易的发展必将阻碍电子商务正常的发展。所以需要及时快速地解决电子商务的难题。

The financial crisis that broke out in the us in the second half of 2008 has had a great impact on China. Since the second half of last year, China's exports have fallen rapidly due to the financial crisis, and many companies have turned to the Internet to expand the domestic market. Due to the tightening of internal and external demand, many logistics enterprises in circulation have experienced unprecedented winter.

09 on February 18, the state council premier wen jiabao chaired a state council executive meeting, review and principles through the "electronic information industry to adjust the revitalization of planning", at the same time, Chinese premier wen jiabao chaired a state council executive meeting, the 25th review and principles through the logistics industry adjust the revitalization of planning ".

E-commerce is broadly defined as the use of the Web for all business activities, including electronic transactions. The narrow sense of e-commerce is called electronic transactions, which mainly USES the means of communication provided by the Web to conduct commercial trade activities on the Internet, including buying and selling products and providing services through the Internet. SWOT represents: strengths, weaknesses, opportunities, threats.

With the popularization of computers and the rapid development of Internet, the development of e-commerce has provided favorable infrastructure conditions. The rapid development of shopping in China has benefited from the rapid popularization of the Internet. The use of credit CARDS and so on provide good conditions for the faster and stronger development of e-commerce.

The convenience of shopping on the Internet: there are many kinds of goods on the Internet, and in the rapid development, it can meet the needs of most consumers. Online buyers are faced with numerous sellers, while sellers face numerous buyers with great potential. In the age of informatization, the development of high and new technology makes the entry threshold lower and lower, and the cost of management and maintenance is relatively low.

The development of e-commerce enables shopping to cross the spatial dimension and save time. Network resources sharing and the loss of the intermediate links and don't have to spend a lot of investment in shops fine makes the cost of the enterprise relative to the real economy is much lower, so the price also will be cheaper. At the same time, you can browse shopping on the Internet, and you can buy your own satisfaction and the relative price more favorable and save more time cost.

Nowadays, the Internet is becoming more and more popular among white-collar workers and college students, and shopping online is becoming a trend. Now these classes either don't have time to go shopping or they just like to chase new things. They can do DIY online. Services are becoming more human.

Security is an important issue in trading. However, there is no perfect e-commerce law in China, and the security issue is very prominent. Consumption insecurity is a fatal factor restricting the development of e-commerce. The security of credit card information, the security of data transmission, personal privacy and other issues hinder the development of e-commerce. When online shopping became more popular today, security problems need to be solved.

Chinese people are bound by traditional ideas, and there are concerns about shopping online. Conventional wisdom has limited the enthusiasm for shopping on the Internet. The constraints of thinking include the fear of invisible entities, privacy, credit card information, and virtual trading environments.

Online trading as a means of trading also has to be bound by the law. However, as a new trading situation, there is no sound legal system, which makes online transactions not standardized and affects the development of online transactions. And China has not attached importance to the development of e-commerce as much as the physical industry. Set up shop on the net do you want to industrial and commercial bureau registration, shall collect taxes, if know how to develop the tax standard is not consistent with the entity industry, measure standard and way is difficult to determine. Nowadays, e-commerce in China is still in its initial stage of development, which requires legal support. Too strict a constraint will limit its development. If there is a lot of formalities and regulations to collect taxes, many online shops are likely to withdraw from the market.

The competition of the 21st century is the competition of talents. China's e-commerce industry reflects the lack of talent training, lack of confidence in professional talents, and lack of high-quality talents. As a relatively new industry, e-commerce is lacking in professional talents. The lack of computer and network technology talents severely limited the development of Chinese e-commerce. As an e-commerce major, I feel deeply about it. Not only do companies complain about talent, but students in e-commerce also struggle to find jobs.

The ultimate realization of e-commerce relies on the distribution of developed and sound logistics. There are still many problems in China's logistics industry. The logistics system is not perfect, the logistics distribution is unreasonable, and the higher logistics cost is the factor restricting the development of e-commerce. In addition, there are some problems such as the corresponding certification system and technical unsound, and the popularization of education in e-commerce also needs to be strengthened.

As the financial crisis brings about economic recession, it also brings new opportunities to the development of e-commerce. Coupled with the country's macro-control, e-commerce ushered in the spring.

The financial crisis has led to a decline in purchasing power, and austerity is an important tool for the general response to the financial crisis. Network shopping convenient, low cost advantages, in the current economic environment, success attracts more ordinary consumers eyeballs.

The financial crisis has greatly impacted the real estate economy, especially the foreign trade. Everyone is casting their eyes on the big market. Traditional entity shop of lower earnings or collapse, to this part of the seller group to reconsider cost accounting problems, in order to reduce the harms brought by the financial crisis, online sales of low cost or zero cost, has brought new hope for this part

The Chinese government has responded to the financial crisis by introducing policies to revitalize the electronic information industry. Electronic commerce as an electronic information industry will certainly benefit. The executive meeting of the state council also put logistics on the list of revitalization. Logistics is a restriction factor of the development of e-commerce, and the government's support for logistics will further promote the development of e-commerce.

With the rapid development of e-commerce, various transaction modes have become more and more prominent in the process of blooming. The problem of security is especially obvious. More and more Internet users began to choose shopping on the Internet, which brought benefits to the market while also giving criminals the opportunity to take advantage of it.

Due to the virtual nature of the network and the security of data transmission, the development of e-commerce has certain uncontrollability. And with the increase of online transactions, the amount of information will be huge, which will require the Internet to follow the development of The Times in terms of software, hardware, database and talents. Any link that goes wrong can have unpredictable consequences.

How to apply some policies to the network is an urgent problem. Online transaction taxes, online store registration and so on. Then there is the safety issue to solve the consumer's concern!

The disadvantage of e-commerce with the development of online transactions will hinder the normal development of e-commerce. Therefore, we need to solve the problem of electronic commerce quickly and quickly.

The financial crisis has brought new opportunities to e-commerce. The support of Chinese government policy also provides a good condition for the development of e-commerce. But the development of electronic commerce is not plain sailing. Credit and logistics are two mountains facing e-commerce. Many abuses will be exposed when it rises rapidly. The Chinese government should step up publicity and support, support sellers and encourage consumers to buy. We should seize this opportunity to meet the challenges and make e-commerce grow faster, better and better.

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Paper代写：Enterprise refinement management

下面为大家整理一篇优秀的paper代写范文- Enterprise refinement management，供大家参考学习，这篇论文讨论了企业精细化管理。当今，市场竞争激烈，社会化分工也越来越细化，在这种外部环境影响之下，企业进行精细化管理成为一种必然。精细化管理是一种工具、理念、文化，企业在进行精细化管理的过程当中，要将这个工具合理使用，要将这种理念灌输给员工，要将这种文化输入到企业各流程中，切实做到合理有效的企业精细化管理。

Today, the rapid economic development of enterprise production, management, operation and so on various aspects are put forward higher requirements, and our part there is a lot of enterprises in the condition of extensive management and operation, fine management to become the enterprise must study a kind of management concept and method.

The concept of refined management originated from 1950, but Taylor's scientific management thought is the theoretical origin of refined management. Refined management, as the social division of labor, more and more quality requirements, will? Then, low consumption and high quality are introduced into the thoughts, patterns and behaviors of daily management. Fine management is forming system and the detailed rules, will organize all the work of routing, standardization, digital and information, makes the organization more efficient enough, coordinate various modules running. From its essence, delicacy management is not only management technology, but also the concept and culture.

Fine management is the inevitable requirement of social division of labor refinement, with fine refinement management, full, high and new, yan, six features: fine, the organization's short, medium and long various goals clear, detailed and operable, organize departments unit index systematic, operable, quantitative, clear all work standards; All of them are involved in the operation and management of all departments of the organization, control all the operation processes of the organization, and coordinate with each unit. High, strengthen strategic thinking, implement high standard and high quality to work; New technologies and new models to keep the core competitiveness of the organization; Strict, strict work requirements, strict style, strict assessment of the results; Solid foundation management content should be solid, full participation, sustainable development.

Company follow the following four principles: one is the principle of digital, accurate data is the foundation of company management, and use the data to inspection, guidance, each unit in the organization behavior of the individual, make the elaborating management more accurate efficient; The second is the operational principle, the rule is not to be placed on the surface only to pay respect, but more importantly, the work can carry out the actual operation according to the rules, so that the fine management can be implemented into the work; The third is the bottom line principle. In the detailed work, we should consider whether it can be further refined. There is no need for further refinement. Fourth, the principle of intersection, the organization must be the intersection of people, things, and posts, to clarify the intersection point to ensure that the responsibility and rights are equal and clear responsibility.

The daily business activities of the enterprise include all the organization's work management units, which are the basis for the survival and operation of the enterprise, and also an important part of the fine management of enterprises. Companies operating in the elaborating management is the premise of the leader can fully realize the essence of fine management, can effectively the concept of fine management goes through to the enterprise's daily operation. The elaborating management business, it is fully considering the internal and external environment, make enterprise management system process, refine and operational steps, the scientific management mode, the new science and technology, information technology is introduced into the work, cooperate effectively coordinate the corporate sector, reduce the internal friction, improve the efficiency of enterprise operation and management, so as to improve enterprise efficiency.

In the human resource is the enterprise can not be copied, the core of the unique resources, effective use of enterprise human resources can form competitive advantage, therefore the elaborating management of human resources is an essential part of fine management. The elaborating management of human resources through the selection of human resources, using, yukon, leave: selection, refining enterprise human resources demand, containing the number of people demand, quality requirements, standards, strict selection of introducing suitable for enterprise talent; Use, formulate and refine reasonable and strict working standards, so that the right people to the right positions, and make up an efficient work team; Cultivate and refine the standard of talents, find the human resource demand of the enterprise, effectively improve the training effect, reduce the training cost, and enable the human resources to meet the enterprise needs; Stay, make reasonable and refined salary and welfare treatment, staff growth channel, retain excellent talents, make the enterprise human resources reasonable flow. There is also a focus on the intensive management of human resources, namely strict assessment, strict assessment standards and assessment process, and effectively build an efficient human resources team.

Is one of the three basic business operation of funds, funds of fine management to detailed and accurate records flow and use of funds, improve the service efficiency of funds, make money to produce a greater benefit. Money fine management mainly includes four aspects: one is the budget management, the budget establishment science together, and the implementation of strict budgets, the rational flow of funds to ensure that enterprises and capital safety; The second is the capital benefit assessment, set up the standard detailed fund benefit assessment target for each department, and effectively guide the rational utilization of enterprise funds; Third, cost management, dynamic control of various costs in the enterprise, reduce unnecessary consumption, effectively reduce the overall cost of the enterprise while improving efficiency; Fourth, we will speed up the payment of the payment, check the arrears of each item on a regular basis, and accelerate the payment of the payment through various effective means.

Improving quality is one of the quintessence of enterprise delicacy management. Products from raw material to the finished product process involving multiple procedures, quality refinement management involved include raw materials quality, process, quality inspection, and other processes, enterprise needs to be done to achieve the quality of fine management from the following three aspects: one is to establish product quality system, in order to strengthen the management of the staff quality consciousness, clear quality responsibility and rewards and punishment system; The second is to set up production process standards, and employees can clearly see the standards and responsibilities of each link of production, so that quality management can be put into practice. Third, strengthen the process management, strictly manage each process and link, solve the problem in time to solve the improvement, ensure every link quality pass.

With the continuous improvement of social division of labor and quality requirements, it is inevitable for enterprises to carry out fine management. However is not a slogan, refinement management in enterprise is a kind of idea transformation, need for managers and staff awareness training, at the same time also need through effective and long-term improvement, to ensure the fine management of enterprises to achieve scientific.

Enterprise's fine management is a long-term work system, fine management implementation of five stages: awareness of the objective of fine management and make the leader and staff in the process of improvement can see clear goals, the direction of improvement, to help correct the problems that arise in the process of fine management to guarantee the right direction; The second is to comb the enterprise process, comb through the current process of the enterprise, clarify the intersection of people, things and posts, and divide the responsibilities and power of departments, individuals and posts, so that the enterprise process is detailed and clear; Third, make the system, comb the enterprise's various systems, make the system standardization, the clear, ensure the normal operation of each process, ensure the smooth implementation of the enterprise fine management; Fourth, informationization construction, as the information age, enterprise informatization construction is to enhance the enterprise efficiency, accelerate the fine management guarantee; Five is to establish the assessment mechanism, the assessment is the important guarantee of the enterprise's fine management, ensuring that the enterprise's fine management can be carried out smoothly according to the target.

Nowadays, the market competition is fierce and the social division of labor is becoming more and more detailed. Under the influence of this external environment, it is inevitable for enterprises to carry out refined management. Fine management is a tool, philosophy, culture, enterprises in the process of fine management, this tool will be reasonable use, will be instilled the concept, to this kind of culture input to the process, to achieve reasonable effective fine management of the enterprise.

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Essay代写：The cultivation of college students' scientific research ability

下面为大家整理一篇优秀的essay代写范文- The cultivation of college students' scientific research ability，供大家参考学习，这篇论文讨论了大学生科研能力的培养。大学生科研能力的培养可以激发学生对专业知识研究的主动性和积极性，帮助学生拓展专业知识的深度和广度，使学生更好地学会分析问题、解决问题，从而促进科研创新能力的提高。同时，在进行科研活动的过程中，能够促使大学生进一步明确自己的学习目标和努力方向，使专业知识得到进一步的完善，进而增强大学生未来的就业及创业能力。

The cultivation of college students' scientific research ability can inspire students' initiative and enthusiasm of professional knowledge study, help students expand the depth and breadth of professional knowledge, make students better learn to analyze and solve problems, to promote the improvement of scientific research innovation ability. At the same time, in the process of scientific research activities, would help college students to further their own learning goals and direction, further improve the professional knowledge, and to strengthen college students' employment and entrepreneurship in the future.

Improving college students' scientific research ability is an important way to improve the quality of talents in colleges and universities. By sending high-quality talents to the society, universities further enhance their popularity and social recognition, thus enhancing their competitiveness.

As a national important carrier of the talent training in colleges and universities, we should take cultivating and improving students' scientific research innovation ability as an important part of talent training, so as to meet the needs of national development of high-quality talent, further promote the development of the country, to speed up the pace of building an innovative country.

Scientific research consciousness is the premise of cultivating the good scientific research accomplishment of college students, and it is the motivation to promote the self-study of college students and arouse their thirst for knowledge. In colleges and universities, most college students are not aware of the importance of participating in scientific research activities, as well as the important influence and significance of academic ability and innovation ability in the future employment.

Some college students' basic theories are not solid, their understanding of professional knowledge is not thorough, and their ability to analyze and solve problems is poor, and they lack relevant professional guidance. Therefore, it is very difficult to rise to a certain height in scientific research ability, which is an important reason for the lack of participation of university students in scientific research activities.

Colleges and universities should set up perfect and effective incentive mechanism for scientific research, scientific research into the evaluation system, so as to motivate the students' scientific research consciousness and enthusiasm, thus improving the students' scientific research ability and level.

To the attention of the college students' scientific research in colleges and universities, is to cultivate college students' scientific research ability, the key to promote college students to take an active part in scientific research activities, and at present a lot of emphasis on college students' scientific research in colleges and universities is not high.

Schools can organize all kinds of scientific research and academic activities, academic seminar, let students understand the scientific research and academic frontier issues in time, broaden the student's field of vision and thoughts, further enhance the students' scientific research consciousness and scientific research enthusiasm, at the same time, colleges and universities can establish their own academic journals, academic papers published to provide a platform for the students, to enhance the students' scientific research enthusiasm, improve the students' scientific research level and ability.

Improving college students' scientific research ability is a necessary requirement for the development of colleges and universities. Meanwhile, the improvement of scientific research ability can also promote the overall improvement of college students' comprehensive quality. Colleges and universities can cultivate students' scientific awareness through various ways, such as by guiding students to actively participate in various kinds of practices. The school can provide practical opportunities for students through school-enterprise cooperation and other forms, so as to effectively improve students' scientific research level and ability through the combination of theory and practice, scientific research and practice.

To encourage college students to participate in scientific research activities, there must be some incentive mechanism. Special scientific research funds can be set up to provide financial support for students' scientific research activities. In addition, for students with scientific research achievements, the school can assess in scholarships, awards, etc give priority to, to encourage students to participate in the enthusiasm of scientific research activities, let more students actively, actively participate in scientific research activities, so as to promote the improvement of college students' scientific research level.

In a word, the cultivation of the college students' scientific research ability is a long-term process, need according to the characteristics of colleges and universities to explore unceasingly, let more students to participate in the scientific research activities, to promote college students' personal comprehensive quality and the improvement of overall level of scientific research in colleges and universities.

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