modeling study

modeling study

本文将介绍一种名为“建模研究”的科学研究方法。建模研究是通过模拟实验来研究复杂的现象和系统的一种方法，它可以帮助我们更好地理解问题、预测未来、优化决策。

建模研究的基本步骤是：首先，我们需要选择一个研究对象，确定研究目的和问题。其次，我们需要收集相关的数据和信息，建立数学模型和计算模型。然后，我们需要对模型进行验证和调整，确保其准确性和可靠性。最后，我们可以使用模型进行预测和优化，得出结论和建议。

建模研究的优点在于它可以模拟复杂的现象和系统，使得我们可以在实验室环境中研究不可重复的事件。此外，建模研究还可以帮助我们更好地理解问题，因为它可以将问题拆解成组成部分，并分析它们之间的相互作用。最重要的是，建模研究可以帮助我们预测未来和优化决策，因为它可以基于已知数据和信息提供预测和建议。

建模研究在许多领域都有重要的应用。例如，在气象学中，建模研究可以帮助我们预测天气变化和自然灾害。在金融学中，建模研究可以帮助我们预测市场趋势和风险。在医学中，建模研究可以帮助我们预测疾病的发展和治疗效果。在工程学中，建模研究可以帮助我们优化设计和生产过程。

总之，建模研究是一种重要的科学研究方法，可以帮助我们更好地理解问题、预测未来和优化决策。无论我们处于哪个领域，都可以从建模研究中受益，提高我们的科学研究能力和解决问题的能力。

汽车造型设计外文文献翻译、中英文翻译、外文翻译

The Car Modeling Design For car modelling, mention the word people often can produce immediately for lenovo in the form of various body, although it is not comprehensive, because car styling is the sum of outside and inside modelling, but had to admit that the appearance of the car is the most intuitive impression of automobile modeling for people. For the automobile modeling design, it covers knowledge engineering technology, art and so on various aspects of the application and market demand, to meet the consumers' taste and functional requirements. Literally what is undeniable is that the car modeling design is derived from the designers of creative expression, by the designer, to many human idea about the car for a reasonable attempt, constantly breakthrough self, challenge themselves. Car modelling design, whether it's like ordinary people use of household car, or royal family use limousine, or a professional driver favorite car, sports car, they all have very obvious differentiation on modelling, the people in the street to see what level of body, the brand, to the natural identity formed certain association of owners, and for different brands of automobile modeling design, which comes from different designers for car design. Car modelling design is also on the technical support of many other disciplines, here I am to have very important influence on development of automobile modeling design of some of the subject part lists are analyze.

现代大学英语听力1原文及答案

Task 4 【答案】 1) The mayfly. A few hours. 2) They just do two things: finding a mate and producing young. 3) We could judge by its growth rings. 4) It was kept for 152 years. Task 5 【答案】 A. People have different opinions on using animals for research. B. 1) for a. was tried first on animals. b. is dependent on c. using unwanted animals. 2) against a. suffer b. unnecessary c. the same rights 3) a. cell culture b. computer modeling. Task 6 【答案】 A. 1) No. 2) Because zoo officials want him to produce cubs w ith another female tiger, so they don’t want him to become too interested in this family. B. 1) four months 2) 13 kilograms 3) horse meat, their mother’s milk. 4) the National Zoo’s Website C. 1) c, 2) c, 3) b Task 7 【答案】 A. 1) Cats have been more popular, because there are more pet cats in American homes. 2) About 8,000 years 3) They probably arrived in the United States from Europe. 4) No. B. 1)

《化学工程与工艺专业英语》课文翻译Unit 10 What Is Chemical Engineering

Unit 10 What Is Chemical Engineering? 什么是化学工程学 In a wider sense, engineering may be defined as a scientific presentation of the techniques and facilities used in a particular industry. For example, mechanical engineering refers to the techniques and facilities employed to make machines. It is predominantly based on mechanical forces which are used to change the appearance and/or physical properties of the materials being worked, while their chemical properties are left unchanged. Chemical engineering encompasses the chemical processing of raw materials, based on chemical and physico-chemical phenomena of high complexity. 广义来讲，工程学可以定义为对某种工业所用技术和设备的科学表达。例如，机械工程学涉及的是制造机器的工业所用技术和设备。它优先讨论的是机械力，这种作用力可以改变所加工对象的外表或物理性质而不改变其化学性质。化学工程学包括原材料的化学过程，以更为复杂的化学和物理化学现象为基础。 Thus, chemical engineering is that branch of engineering which is concerned with the study of the design, manufacture, and operation of plant and machinery in industrial chemical processes. 因此，化学工程学是工程学的一个分支，它涉及工业化化学过程中工厂和机器的设计、制造、和操作的研究。 Chemical engineering is above all based on the chemical sciences, such as physical chemistry, chemical thermodynamics, and chemical kinetics. In doing so, however, it does not simply copy their findings, but adapts them to bulk chemical processing. The principal objectives that set chemical engineering apart from chemistry as a pure science, is “to find the most economical route of opera tion and to design commercial equipment and accessories that suit it best of all”. Therefore, chemical engineering is inconceivable without close ties with economics, physics, mathematics, cybernetics, applied mechanics, and other technical sciences. 前述化学工程学都是以化学科学为基础的，如物理化学，化学热力学和化学动力学。然而这样做的时候，它并不是仅仅简单地照搬结论，而是要把这些知识运用于大批量生产的化学加工过程。把化学工程学与纯化学区分开来的首要目的是“找到最经济的生产路线并设计商业化的设备和辅助设备尽可能地适应它。”因此如果没有与经济学，物理学，数学，控制论，应用机械以及其它技术的联系就不能想象化学工程会是什么样的。 In its early days, chemical engineering was largely a descriptive science. Many of the early textbooks and manuals on chemical engineering were encyclopedias of the commercial production processes known at the time. Progress in science and industry has bought with it an impressive increase in the number of chemical manufactures. Today, petroleum for example serves as the source material for the production of about 80 thousand chemicals. The expansion of the chemical process industries on the one hand and advances in the chemical and technical sciences on the other have made it possible to lay theoretical foundations for chemical processing. 早期的化学工程学以描述性为主。许多早期的有关化学工程的教科书和手册都是那个时候已知的商品生产过程的百科全书。科学和工业的发展使化学品的制造数量迅速增加。举例

光伏斜屋顶三维建模与发电量模拟计算

光伏斜屋顶三维建模与发电量模拟计算 Title: Photovoltaic Power Simulation and 3D Modeling of Sloping Rooftops Introduction: With the increasing demand for renewable energy, photovoltaic (PV) systems have gained significant attention as a sustainable and environmentally friendly solution. To maximize the energy production of PV systems, accurate modeling and simulation of their performance are crucial. In this article, we will discuss the three-dimensional (3D) modeling of PV systems on sloping rooftops and the simulation of their power generation. 1. Overview of Photovoltaic Systems: Photovoltaic systems convert sunlight into electricity using solar panels made of semiconductor materials. These panels are typically installed on rooftops to harness solar energy efficiently. The energy production of a PV system depends on various factors, including the tilt angle and orientation of the solar panels, shading effects, and the local climate. 2. Three-Dimensional Modeling: To accurately represent the physical aspects of PV systems on sloping rooftops, 3D modeling is essential. This modeling technique incorporates the geometric details of the rooftop and the solar panels to create a realistic virtual representation. Advanced software tools, such as CAD (Computer-Aided Design) software, can be utilized to construct the 3D model by

光伏逆变器的无功功率控制技术研究

光伏逆变器的无功功率控制技术研究引言 光伏逆变器是将光能转换为电能的重要装置，已经在全球范围内得到广泛应用。它在实现能源可持续发展、减少对传统能源依赖方面发挥着重要的作用。然而，在实际应用中，光伏逆变器也面临一些问题。其中之一是光伏逆变器在电力系统中产生的无功功率，这可能会对电网稳定性和能效造成负面影响。因此，对光伏逆变器的无功功率控制技术进行研究具有重要的意义。 一、光伏逆变器的基本原理 光伏逆变器是将直流电能转换为交流电能的装置。其基本原理是通过光伏电池 板将太阳光转换为直流电能，然后通过逆变器将直流电能转换为交流电能。光伏逆变器一般分为单相逆变器和三相逆变器两种类型。对于单相逆变器来说，其核心部件是电容滤波器、整流器、逆变器和输出滤波器。逆变器将直流电能转变为交流电能，并将其输出到电网系统中。 二、光伏逆变器产生的无功功率问题 在实际使用中，光伏逆变器除了能够为电网输入有功功率外，还会产生无功功率。无功功率分为感性无功功率和容性无功功率。感性无功功率会导致电网电压降低，而容性无功功率则会导致电网电压升高。这些无功功率的波动对电网的稳定性和效率有着重要的影响。 三、光伏逆变器的无功功率控制技术 为了解决光伏逆变器产生的无功功率问题，研究人员提出了多种无功功率控制 技术。 1. 串联型逆变器控制技术

串联型逆变器控制技术是一种常用的无功功率控制技术。该技术通过调节逆变器的输出电流来实现无功功率的调节。当电网需要感性无功功率时，逆变器控制器调节输出电流的相位和幅值，使逆变器输出感性无功功率。当电网需要容性无功功率时，逆变器控制器调节输出电流的相位和幅值，使逆变器输出容性无功功率。 2. 并联型逆变器控制技术 并联型逆变器控制技术是另一种常用的无功功率控制技术。该技术通过改变逆变器的工作方式来调节无功功率。当电网需要感性无功功率时，逆变器切换到逆变模式，将多余的有功功率转换为感性无功功率。当电网需要容性无功功率时，逆变器切换到反向模式，将多余的有功功率转换为容性无功功率。 3. 储能系统技术 储能系统技术也被广泛应用于光伏逆变器的无功功率控制。该技术利用储能系统来吸收或释放无功功率，以保持电网的稳定性。当电网需要感性无功功率时，储能系统吸收多余的功率。当电网需要容性无功功率时，储能系统释放储存的能量。 结论 光伏逆变器的无功功率控制技术对于保证电网稳定性和提高能效具有重要的意义。目前，串联型逆变器控制技术、并联型逆变器控制技术和储能系统技术是最常用的无功功率控制技术。通过进一步研究和改进这些技术，可以进一步提高光伏逆变器的无功功率控制能力，促进光伏发电的可持续发展。同时，还需要大规模应用这些技术，从而为电力系统的稳定运行提供技术支持。 参考文献： [1] W. Xiao, R. Wang, C. Peng, et al. Analysis and Modeling of Grid-Connected Photovoltaic Inverter System Under Low and High Voltage Conditions[J]. Energies, 2019, 12(6):1135.

modeling study

Modeling Study Introduction A modeling study is a type of research that uses mathematical models to simulate and analyze complex systems or phenomena. It involves creating a simplified representation of the real-world situation and using mathematical equations to describe the relationships between different variables. Modeling studies are widely used in various fields, including physics, biology, economics, and social sciences, to gain insights into the behavior and dynamics of the system under investigation. Purpose of Modeling Studies 1.Understanding Complex Systems: Modeling studies help researchers understand the underlying mechanisms and interactions within complex systems. By creating a mathematical model, researchers can simulate the behavior of the system and observe how different variables affect the overall outcome. 2.Predicting Future Trends: By running simulations based on different scenarios and assumptions, modeling studies can provide predictions and forecasts about the future behavior of a system. This can be particularly useful in areas such as climate change, epidemiology, and economics, where predicting future trends is crucial for decision-making. 3.Optimizing Strategies: Modeling studies can help optimize strategies by identifying the most effective interventions or policies to achieve a desired outcome. By simulating different scenarios and testing various strategies, researchers can evaluate the potential impact of different interventions and select the most efficient approach.

csc学习计划(外文)

Study Plan Muyao Wang 1，Background Majored in Finance, I received two scholarships for mastering essential skills of financial analysis and mathematics calculation。Through learning microeconomics, marketing and security investment, I was exposed to the big picture of financial markets。The demanding math courses allowed me to establish a very solid background in optimization and probability, which are fundamental to risk management。Moreover，Skills learned from the courses on statistics and econometrics helped me succeed in financial risk modeling。In addition，I was fortuitous to have an opportunity to conduct research on grain yield in Henan province。This research program enabled me to collect data efficiently and utilize them to modify the information system to find the most influential factor. Participating in one intensive exchange program in the USA adapts me to a multicultural environment and expands my global perspective。At the Oklahoma State University , I confirmed my passion on asset allocation, pricing model, risk management and stock valuation in investment class. Themathematics statistics course and elementary statistics for business and economics course taught me how to apply statistics in the financial industry. As the few student who participated once in an exchange program, I feel fortunate to come across with different people and classes in various environments，which make me more confident to deal with the study in USA.

分子动力学建模案例model

分子动力学建模案例model English Answer: Molecular Dynamics Modeling Cases. Molecular dynamics (MD) modeling is a computational technique used to simulate the physical movements of atoms and molecules. It is a powerful tool for studying a wide range of phenomena, including protein folding, drug-target interactions, and materials science. MD simulations are typically performed using a classical force field, which describes the interactions between atoms and molecules. The force field is used to calculate the forces acting on each atom, and these forces are then used to update the positions and velocities of the atoms over time. MD simulations can be used to study a variety of different systems, including proteins, nucleic acids,

bim施工组织设计外文文献

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汽车驱动桥壳的有限元分析和优化外文文献翻译

文献出处：Paul D. FE Analysis and Optimization of Vehicle Drive Axle Housing [J]. Journal of Engineering Computers & Applied Sciences, 2015, 12(3): 21-35. 原文 FE Analysis and Optimization of Vehicle Drive Axle Housing Paul D Abstract As a main part of cars, drive axle housing supports the automobile chassis and the carriage, passes weights to the wheels. Meanwhile, the vertical force, traction, braking force acting on the drive wheels are also passed to the suspension and the frame though the axle housing; therefore, it is playing as both loading part and transmission part. Because the axle is used frequently under complex conditions, their quality and property directly affect the overall performance of the vehicle and its used life, so the drive axle housing must have characteristics of sufficient strength, stiffness and good dynamic. Currently the traditional method has been difficult to meet the requirements of drive axle housing, while because of its many advantages; the finite element method becomes an effective way to solve the problem. Keywords: Drive axle housing, Leaf spring, Collaborative Simulation 1 Introduction As one of the main parts of truck, drive axle shell to play the role of a support vehicle load, and can transfer load to the wheels, at the same time, the driving wheel on the vertical force and tangential force, braking force and the traction), lateral force is through it passed to the frame and carriage, it play the role of a bearing load and transmit forces. In the car, drive axle shell under high load, especially when the car loaded with high speed in the uneven road surface, will produce a big road impact load of the wheels, under the action of strong impact load, the dynamic behavior of the overall car will be from the drive axle shell parts inside and outside the influence of the vibration of the incentive to produce, may even make the bridge shell produces a lot of dynamic stress, lead to crack, fracture, even seriously affect the safety of the vehicle. In automobile structure, due to the use of high frequency, drive axle shell has higher failure rate, however, the overall performance of the car and the useful life is

轨顶排烟口对地铁地下车站火灾排烟效果影响研究

轨顶排烟口对地铁地下车站火灾排烟效果影响研究 LI Jian;SHI Congling;XU Xuan;CHE Honglei 【摘要】为了研究取消轨顶风口对地铁地下车站火灾防排烟的影响,采用CFD方法,针对全封闭站台门系统和全高站台门系统2种典型地铁车站,模拟车站公共区火灾和车站列车火灾发生时,有无轨顶风口对车站内排烟效果的影响.研究结果表明:针对车站公共区火灾,无论是全封闭站台门还是全高站台门系统,取消轨顶排烟口对公共区烟气温度、可见度、CO浓度等影响较低;但针对车站列车火灾,取消轨顶排烟口对公共区烟气温度、可见度、CO浓度均具有较大影响,排烟效果下降较多.【期刊名称】《中国安全生产科学技术》 【年(卷),期】2019(015)001 【总页数】6页(P175-180) 【关键词】取消轨顶风口;火灾;防排烟;全封闭站台门;全高站台门 【作者】LI Jian;SHI Congling;XU Xuan;CHE Honglei 【作者单位】 【正文语种】中文 【中图分类】X928.7 0 引言 地铁因具有运量大、速度高、准点率高、能耗低和污染少等优点而成为城市客流输送的主要工具。火灾安全一直是地铁安全设计中的重要方面，当前在地铁火灾研究

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