fat论文范文

fat论文范文

Obesity is the accumulation of excess body fat caused by the phenomenon, not seen as "healthy" logo. Obesity not only affects the physical beauty, but also to the inconvenience of life, more importantly, is likely to cause a variety of complications, accelerated aging and death. No wonder people say that obesity is a precursor to the disease, signs of aging.

First, it is the enemy of health and longevity

According to statistics, obesity incidence of cerebral embolism and heart failure than normal weight doubled, to more than twice the risk of coronary heart disease than normal weight, the incidence of hypertension than normal-weight two to six times more than those with diabetes increased about four times normal, cholelithiasis were higher than normal four - six times more serious is obesity life can be significantly reduced. It is reported that 10 percent of overweight 45-year-old man, whose life than normal-weight to shorten the four-year, with Japan standard mortality statistics show that the percentage of 100%, obesity mortality rate was 127.9%.

Second, the impact of labor and vulnerable to injury

Obese people tend to heat intolerance, sweating, fatigue, lower extremity edema, varicose veins, skin folds suffering from dermatitis, severely obese people, slow, difficult walking activity has little activity flustered shortness of breath, which affects normal life, serious and even lead to loss of labor. Because obesity action slow response, but also vulnerable to a variety of injuries, car accidents, fractures and sprains and so on.

Third, prone to coronary heart disease and hypertension

Obese adipose tissue increases, oxygen consumption increased cardiac work capacity, myocardial hypertrophy, in particular left ventricular burden, a long time easy to induce hypertension. Lipid deposition in the arterial wall, resulting in luminal narrowing, hardening, easy to coronary heart disease, angina, stroke, and sudden death.

Fourth, the susceptibility to endocrine and metabolic diseases

With the obesity caused by metabolic, endocrine abnormalities, and often can cause a variety of diseases. Diabetes can cause abnormal glucose metabolism, fat metabolism can cause hyperlipidemia, nucleic acid metabolism can cause hyperuricemia. Obese women due to ovarian dysfunction may cause menstrual irregularities.

Fifth, have adverse effects on lung function

Lung function is to supply oxygen to the body and expel carbon dioxide. Obesity due to weight gain requires more oxygen, but not the attendant increase in lung function, while the accumulation of abdominal fat and obesity restrict respiratory movement of the lung, it can cause hypoxia and difficulty in breathing, leading to heart and lung failure.

Six easy to cause liver and gallbladder disease

Because obesity hyperinsulinemia make endogenous triglyceride synthesis hyperthyroidism, it will result in the accumulation of triglycerides synthesized in the liver and thus the formation of fatty liver. Obese compared with normal bile acid cholesterol levels increased more than the bile solubility, so obese easily with a high proportion of cholesterol gallstones, gallstones has been reported suffering from 50 to 80% of women are obese. At the time of surgery, about the height of obesity associated with about 30% of gallstones. Cholelithiasis in the following cases the onset of many: obese women, aged over 40, compared to the incidence of gallstones in obese women with normal weight were about six times higher.

Seven, will increase the difficulty of surgery, postoperative infection

Obesity increases the risk of anesthesia and post-operative wound dehiscence easily infected fall chance product of pneumonia complications than those who do not as much fat.

Eight, can cause joint disease

Weight gain can make many joints (such as the spine, shoulder, elbow, hip, ankle joints) wear or tear caused pain.

Nine concurrent hernia

Obesity may be complicated by a number of hernia, in which the upper part of the stomach to the chest translocation of hiatal hernia is the most common

有关肥胖的英语作文

用 英语 作文 来说明飞盘的起因，以及它的缓解 方法 ，你们是不是会觉得很棒呢?下面是我给大家带来肥胖英语 范文 ，供大家参阅!

The Causes of Obesity

Nowadays more and more people are obsessed with obesity, and they have tried in many ways to lose weight but got few result due to an unclear understanding of the factors that are responsible for obesity. In my opinion, three factors may lead to this phenomenon.

Part of the explanation for it is the genetic inheritance. Some people are born bigger and fatter because they have inherited some piece of gene which decides their obese figure from their parents. But their parents are not necessarily fat, because the gene in them may not be dominant. So it seems that people are obese due to the genes can’t change their situation unless they receive some operation to utter their genes.

Another contributing factor is an unhealthy diet. As a result of the improved living standard, people tend to have a over-nutritious diet, so they absorb in materials exceeding what their body needs, such as sugar and fat, which accumulate in their body into fat. Also, in order to adjust to the timetable of their work, some people become fat due to their irregular meal time and the style of the meals: no breakfast, fast food for lunch, and a luxurious dinner, which disobey the rules of effectively digesting. In short, eating unproper food at an unproper time makes people fat.

Lack of physical exercise also causes obesity. Exercise consumes the energy, which is produced by the transformation of the fat or sugar in our body, so by doing exercise regularly, we can consume the excess amount

of fat on us, as a result, we serve the purpose of losing weight. But some people are lack of exercise owing to various excuses, such as lack of time or the dislike for sports. Because of that, there are always excess fat on them, and day by day, the fat increases gradually into a terrible amount, then they face the problem of being obese.

Still, there are many other factors responsible for obesity, but those three points talked about here are true of most obese people. So I suggest all of us keep a good eating habit and spend some time doing exercise to stay away from obesity.

It seems that many people today are overweight. No one wants to carry around extra pounds, lout few people know how to slum down effectively. They look for miracle pills and magic cures. In the end, they fail and the pounds come back. But the most effective way of losing weight is actually very simple. It is a combination of a good diet and proper exercise. What makes it work is determination. It requires discipline and commitment to succeed. Here is an example that proves the truth of these words.

My aunt had been trying to lose weight for years. She went on one diet after another, but none of them worked. She lost a lot of weight quickly only to have it come back. Finally, she followed her doctor's advice and began to eat a simple, well-balanced diet. She ate lots of fruits and vegetables and avoided high-fat foods. In addition, she joined an exercise class. She worked out three times a week. At first, my aunt wasn't happy because the weight came off so slowly. But her classmates encouraged her to stick to it and eventually she reached her goal. Best of all, she was able to stay at her ideal weight. That was because she had developed healthy new habits.

现在似乎有许多人的体重都过重。没有人会希望身上有多余的重量，但是很少人知道如何才能有效地瘦下来。他们会去寻找特效药，以及神奇的治疗法。最后不仅失败，而且反弹了。但是事实上，最有效的减肥方法非常简单。主要就是结合均衡的饮食，以及适当的运动。成功的关键就是要有决心。成功需要自制和投入。以下这个例子，可以证明这个方法是正确的。 我阿姨试图减肥已经好多年了。她一次又一次地节食，但是没有一次成功。她的体重会快速地下降，但没多久就又反弹了。最后，她听从医生的建议，开始吃简单、均衡的饮食。她吃大量的蔬果，并避免高脂肪的食物。除此之外，她还去参加运动课程。她一星期运动三次。起初，我阿姨并不是很开心，因为体重下降得很慢。但是她的同学们鼓励她坚持下去，最后她终于达到目标。最棒的是，她能够维持她的理想体重。因为她已经养成健康的新生活习惯。

The Cause of Obesity

Obesity is a medical condition in which excess body fat has accumulated to the extent. Body mass index (BMI), a measurement which compares weight and height, defines people as overweight (pre-obese) if their BMI is greater than 30 kg/m2 (Wikipedia, 2011). Nowadays, obesity has become a serious problem in the world. Demonstrated according to the investigation that there is about 60 percent of the populace in the USA is too fat and Germany obese people are more than half of the country population.

Some people become obesity, because they inherit their parents’ obese gene. The UK researchers have discovered a commonly occurring gene variant that may explain why some people become overweight while others do not. (Paddock, 2012). Also, European and American are easier to get obese gene. So we can easily find a people who are overweight in American street and UK Street. People cannot change their obese gene. They can only keep a balanced diet and avoid eating too many high-fat, high-carbohydrate foods, such as chocolates, fried foods and carbonated drinks.

Moreover, more and more people lack of exercise is another reason to cause obesity. Because of the popularity of the Internet, teenagers began to indulge in the Internet. They just want to play computer games, online shopping and chat on Facebook、Twitter… So, they spend less time in playing sport and unlike previous youth to do various sport. They lack of exercise, lack of active and lack a best way to keep fit.

Besides, fast food is the best important reason to cause obesity. Fast foods contain a large number of calories and unhealthful ingredients. Also, fast foods are composed of high-fat, high-carbohydrate foods. Many teenagers just want to eat fast foods which are deep-fried. It is contributing to obesity. The study suggests that zoning laws restricting fast food outlets within a set distance of schools could combat childhood obesity in America. (Health State, 2007). In addition, eating too many fast foods can cause Hypertension, High cholesterol and malnutrition. A healthy diet not only can let us have a good figure, but also let us have a good health.

Obesity is an excess proportion of total body fat. We could this boils down eating too much rubbishy fast food and exercising too little in behavior, meanwhile, it can cause by an unmodifiablereality, our y is not just a cosmetic consideration. It is a chronic medical disease that can lead to diabetes, high blood pressure, heart disease and other chronic illnesses. Obesity is difficult to treat and has a high relapse rate so that should prevent our weight to become too high ahead of schedule.

计算机软件论文参考

随着我国现代化程度的不断提高,计算机软件被应用的领域愈发广泛,其本身的创造程度也越来越高,计算机产业现在已经成为一个规模庞大的产业。下面是我为大家整理的计算机软件论文，供大家参考。

计算机软件论文 范文 一：计算机软件开发中分层技术研究

摘要:在信息化建设水平不断提高的情况下，计算机软件在这一过程中得到了十分广泛的应用，此外，计算机软件开发在这一过程中也越来越受到人们的关心和关注。软件开发技术最近几年得到了很大的改进，这些技术当中分层的技术是非常重要的一个，所以，我们需要对其进行全面的分析和研究。

关键词:计算机;软件开发;分层技术

当前信息化时代已经悄然到来， 网络技术 的发展也使得人们越来越关注软件开发行业，计算机软件从原来的二元结构模式逐渐向多层结构模式发展，中间件也成为了应用层质量和性能非常重要的一个问题，此外，其也成为了计算机软件开发应用过程中非常关键的一个技术，其与数据库， 操作系统 共同形成了计算机基础软件。这一技术的应用能够使得软件系统扩展性更强，灵活性和适应性也在这一过程中得到了显著的提升，所以，分层技术也已经在现代计算机软件开发的过程中得到了越来越广泛的应用。

1计算机层次软件及其优点

计算机软件工程的最终目标就是研发质量和性能更好的软件产品，而在这一过程中基础构建和开发可以十分有效的为计算机软件的应用提供非常好的条件，构件是高内聚度软件包，其能够当作独立单元进行更加全面的开发处理，同时，其也为构件的组合提供了非常大的便利，对软件系统进行搭建可以很好的缩短软件开发的时长，同时还能十分有效的获得更多的质量保证。构件开发最为重要的一个目的就是广泛的应用，应用层次化软件结构设计 方法 的一个非常重要的目的就是可以更为科学合理的去应用构件技术。软件系统在进行了分解之后，形成了不同的构件模块，高层次构件通常被人们视为指定领域的构件。低层次构件只是与数据库或许是和物理硬件产生联系。层次划分是一个相对比较宽泛的概念，所以在层次关系方面并没有一个相对统一和规范的标准。不同构件内部的层次关系通常是上下层依附的关系。站在某个角度上来看，计算机软件的系统层次化就是指多层次技术的广泛应用，而根本原因是为了软件能够大范围的应用。采用分层模式可以非常好的展现出软件的可扩展性，系统某一层在功能上的变化仅仅和上下层存在着一定的关系，对其他层并不会产生非常明显的影响。分层模式也比较适合使用在一些标准组织当中，此外，其也是通过控制功能层次接口来保证其不会受到严重的限制。标准接口的应用能够使得不同软件可以自行开发，同时后期更新的产品也能够和其他软件具有良好的融合性。

2软件开发中多层次技术分析

2.1两层与三层结构技术分析

在两层模式当中，一般都是由数据库的服务器和客户端构成，其中，客户端能够为客户提供一个操作界面，同时，其还具备非常好的逻辑处理功能，同时还要按照指令去完成数据库的查询，而服务器主要是接收客户端的指令，同时还要按照指令对数据库完成查询，同时还要返回到查询结果当中。这种逻辑处理结构就被人们称作Fat客户，这种二层技术的客户端类型在应用的过程中能够完成非常多的业务逻辑处理工作，随着客户端数量的增加，其扩充性和交互作业以及通信性能等等都会受到影响，此外还存在着非常明显的安全问题及隐患。而计算机技术在不断的完善，传统的二层技术已经不能适应系统应用的具体要求。在这样的情况下就出现了三层结构技术类型，这种技术主要是客户端、应用服务器交换机和应用服务器构成。其中，客户端主要是用来实现人机交互，数据服务器可以让操作人员完成数据信息的访问、存储以及优化工作，服务器的应用主要是能够完成相关业务的逻辑分析工作，这样也就使得客户端的工作压力有了非常显著的下降，我们一般将这样的客户称作瘦客户。三层结构和二层结构相比其具有非常强的可重复性、维护方面更加方便，同时其安全性和扩展性也明显增强，但是在用户数量并不是很多的时候，二层结构的优势则更加的明显，所以，在软件开发的过程中，我们一定要充分的结合实际的情况和要求。

2.2四层结构技术

当前，计算机应用的环境在复杂性上有了非常显著的提升，客户对软件系统也提出了越来越高的要求，其主要表现在了软件开发周期不是很长，系统的稳定性很好，扩展性更强等方面，为了满足用户提出的更高要求，我们在开发的过程中将用户界面、业务逻辑个数据库服务器根据其功能模块进行全面的处理，将不同的模块分开，这样也就将相互之间的影响降到了最低水平。这个时候，如果使用三层分层技术就无法很好的实现这一功能，很多软件的开发人员会在数据库和逻辑层交互的过程中，增加一层数据库接口封装，这样也就实现了三层向四层的进化。四层结构体系主要包含web层、业务逻辑层、数据持久层与存储层。其中，web层可以使用模式1或模式2开发。在模式1中，基本是由JSP页面所构成，当接收客户端的请求之后，能直接给出响应，使用少量Java处理数据库的有关操作。模式1实现较为简单，可用于小规模项目快速开发，这种模式的局限性也很明显，JSP页面主要担当了控制器与视图View两类角色，其表现及控制逻辑被混为一体，有关代码重用功能较低，应用系统的维护性与扩展性难度加大，并不适合复杂应用系统开发。模式2主要是基于1vlvc结构进行设计的，JSP不再具有控制器职责，由Sen}let当作前端的控制器进行客户端请求的接收，并通过Java实施逻辑处理，而JSP仅具有表现层的角色，将结果向用户呈现，这种模型主要适合大规模项目的应用开发。业务逻辑层在数据持久层与web层间，主要负责将数据持久层中的结果数据传给web层，作为业务处理核心，具有数据交换的承上启下功能，业务逻辑层的技术依据业务及功能大小不同，能够分成JavaBean与EJB两种封装的业务逻辑，其中EJB简化了Java语言编写应用系统中的开发、配置与执行，不过EJB并非实现J2EE唯一的方法，支持EJB应用的程序器能应用任何分布式的网络协议，像与专有协议等。

3结论

当前，我国计算机应用的过程中面临的环境越来越复杂，同时在客户的要求方面也有了非常显著的提升，为了更好的满足软件应用者的要求，在软件开发工作中，分层技术得到了十分广泛的应用，以往的两层技术模式已经无法适应当今时代的建设和发展，在对两层和三层结构优缺点的分析之后，多层结构系统在应用的过程中发挥了非常大的作用，这样也就使得软件开发技术得到了显著的提升，从而极大的满足了客户对计算机软件的各项要求。

参考文献

[1]金红军.规范化在计算机软件开发中的应用[J].物联网技术,2016(01).

[2]赵明亮.计算机应用软件开发技术[J].黑龙江科技信息,2011(26).

[3]林雪海,吴小勇.计算机软件开发的基础架构原理研究[J].电子制作,2016(Z1).

计算机软件论文范文二：分层技术在计算机软件开发中的使用

【摘要】近年来，计算机技术和网络技术已经在人们的日常生活和工作中得到普遍应用。计算机开发技术已经得到了相关从业人员的普遍关注。笔者对计算机软件开发中分层技术的应用进行论述，以期提升计算机软件开发水平。

【关键词】计算机;软件开发;分层技术

1前言

科学技术快速发展，现代化进程逐渐加快，计算机软件开发也逐渐由传统二层结构开发模式转化为多层结构。其已经成为计算机软件开发过程中的重要内容和组成部分。近年来，网络环境日趋复杂，将分层技术应用到计算机软件开发中，能够提升软件系统的整体清晰度和辨识度，为人们提供一个灵活的软件应用环境，促进计算机研发技术又好又快发展。

2分层技术相关概述

2.1分层技术的概念及应用计算机开发过程中要确保软件的灵活性和可靠性，实现软件的多功能应用。分层技术基于计算机软件内部结构原理，促进计算机软件应用过程中各种不同功能的实现。因此，将分层技术应用到计算机软件开发中具有一定的优势。同时，其能够改变传统的计算机软件单项业务处理模式，实现多层次技术的开发和应用[1]。

2.2分层技术的特点在计算机软件开发中应用分层技术具有相应的特点和优势。首先，分层技术能够依据相关功能需求，对计算机软件进行扩展和计算机系统进行分解，实现对计算机软件的改造和更新，并对系统中功能层和上下层进行变革和修改。其次，分层技术能够提高计算机软件的开发质量和效率，也能够提高其软件运行的可靠性。通过对原有计算机系统的改造和变更，缩短复杂软件的开发时间，提高新产品的质量。第三，在计算机软件开发中应用分层技术，能够让计算机软件得到充分利用，并对功能层次的接口进行定义，实现软件的自动化开发，促进标准接口的应用和其端口的无缝隙对接[2]。

3分层技术在计算机软件开发中的应用

近年来，随着生活理念的革新，人们对计算机软件开发普遍关注。同时，计算机软件开发也对传统计算机软件单项业务处理模式进行变革，使其向多层次计算机软件开发转变。目前，计算机软件开发技术已经由原来的二层和三层技术转化为多层技术。

3.1双层技术的应用

双层技术在计算机软件开发中的应用，能够提升计算机软件开发的质量和效率。双层技术是由客户端和服务器两个端点组成。客户端的功能是为用户提供相应的界面，并对计算机日常应用过程中的相关逻辑关系进行处理。服务器主要用来接受客户信息，并对用户相关信息进行整合，传递给客户端。

3.2三层技术的应用

三层技术是对计算机开发过程中的双层技术进行不断完善。相较于传统的双层技术，三层技术能够确保在一定程度上增加应用服务器，同时也能够提高用户数据存储质量和效率。在计算机软件开发过程中应用三层技术，能够提高计算机信息访问效率，也能够确保计算机与人之间构建和谐的共性关系，确保计算机整体运行质量的提升，为人们提供一个良好的计算机应用环境。三层技术包括业务处理层次、界面层次和数据层次。业务处理层次主要目的是了解用户的需求，并结合用户需求对相关数据进行处理。界面层主要是搜集用户的需求，并对其进行加工，将相关结果传递给业务处理层次。数据层次主要用来对业务处理层的相关请求进行审核，并应用数据库对相关信息资源进行查询和整合。加之科学的分析，将其传递给业务层。三层技术能够提升计算机使用性能，但其用户环境比较复杂，增加了信息和数据处理难度[3]。

3.3四层技术的应用

四层技术是基于三层技术进行完善的，其包括业务处理层、web层、数据库层和存储层。其在计算机软件开发过程中的应用原理是应用业务处理层分析用户需求，并将数据层处理结果传递给web层，应用数据交换和数据访问代码来反映数据库和计算机对象之间的关系。

3.4中间件技术的应用

中间件技术被作为面向对象技术进行开发。中间件主要以分布式计算环境为背景，以实现互通和互联及资源共享应用功能，其是一种独立系统软件。它能够对异构和分布集成所带来的各种复杂技术的相关细节进行屏蔽，以降低相关技术难度。在操作系统、数据库与应用软件之间应用中间件，能够缩短开发周期，提升系统和软件运行的安全性。中间件的种类比较多。结合其相关技术特性，能将其划分为DM、MOM、OOM中间件和RPC与TPM中间件等，其已经被普遍应用到计算机软件实际开发中。

3.4.1面向消息中间件信息同步传送和异步传送都可以应用MOM中间件技术。MOM能够实现异步通信、消息传递列队化和传递过程中的安全性和可靠性。MOM分层技术在计算机软件技术开发中应用很普遍。应用消息列队中间件进行应用编程，其主要通过中间件和对方实现间接通讯。同时，其能够应用队列管理器与远地或者本地应用程序进行通信。通信过程中，通信双方只需要将消息传递给队列管理器，不需要对消息的传递过程和传递安全性进行过多的关注，有利于软件开发过程的简化。

3.4.2远程过程调用中间件在客户和服务器计算层面应用远程过程调用的中间件，其更加具有先进性和实用性。程序员可以结合客户的实际需求对相关应用进行编制。RPC比较灵活，其也能够适应于复杂的计算机环境中，并支持跨平台应用，对远端子程序进行调用，以满足编程过程中的相关细节。但是其在应用过程中仍然存在相应的缺陷，其采用同步通信方式，不利于在大型范围内进行使用，需要对网络故障和流量控制等诸多因素进行考虑。

3.4.3面向对象的中间件基于组件技术在大型应用软件中的使用比较广泛，分布系统对各个节点中不同系统平台的新组件和老版组件进行集成应用。由于其面临各种问题，使用过程中具有一定的局限性，并不能够充分发挥其作用。基于对象技术和分布式技术，面向对象的中间件提供了全新通信机制，能够在异构分布的计算环境中对传递对象的相关请求进行满足。其来源主要是本地或者远程服务器。

4结语

计算机的应用环境越来越复杂，用户的相关要求也逐渐提高，增加了软件开发的难度。在计算机软件开发中应用分层技术，并对其进行不断地优化，能够实现其安全性和拓展性，缩短开发周期，提升其整体处理能力，有效满足了客户的日常应用需求。

参考文献:

[1]李大勇.关于分层技术在计算机软件中的应用研究与分析[J].计算机光盘软件与应用，2014，(20):78～79.

[2]杨博宁.浅谈计算机软件开发中分层技术[J].科技风，2015，(08):95.

[3]贾辉.刍议分层技术在计算机软件开发中的应用[J].中国高新技术企业，2015，(30):59～60.

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初一水平英语议论文范文80字

有没有命题？您可以订一个话题吗？
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