热带地区净零能耗建筑设计策略浅析--以新加坡国立大学SDE4教学楼为例

从净零能耗建筑的不同定义与相关政策出发,以新加坡国立大学环境设计学院4号教学楼为例,基于热带气候适应性,就其主被动设计策略进行了深入解析,通过相关性能及热舒适评测验证了其运行效果,并通过与其他新加坡优秀绿建项目的比较总结了其设计策略得失,为我国湿热地区的零能耗建筑实践提供参考与借鉴。

高中语文课后作业设计策略分析

课后作业是学生学习中的重要内容,而布置作业是一种艺术,尤其是新课程改革背景下的作业布置更是需要精心设计。语文新课程改革的核心精神是培养有创造力的人才,而在作业的布置中如何激发学生创造性思维和自主学习能力,如何张扬学生的个性,是我们每一个一线教师应该思考的,更是应该在教学中实践的。

弹丸侵彻多层目标过程数值仿真及计层策略

硬目标侵彻弹能够有效毁伤敌方地下工事等多层结构目标,为使弹丸能够在预定的层数起爆,利用侵彻加速度来实现计层。通过有限元仿真软件对弹丸正侵彻和斜侵彻多层间隔靶板进行仿真,获取弹丸碰击、侵彻和穿透靶板时的加速度特征,针对可能存在竖直墙的情况,引起多计层,提出分析水平和垂直加速度特征峰值以及设定侵彻间隔时间的办法,剔除其带来的影响,实现精确计层。通过Matlab对该方法进行验证,证明能确保计层策略的准确性。

基于磁-加速度信号的侵彻计层方法研究

针对侵彻计层实时处理数据过程中,单独使用加速度计处理数据时信号噪声大、分离难度高,单独使用磁传感器处理数据时易受探测环境干扰的问题,提出一种加速度传感器与磁传感器结合的侵彻计层处理方法。利用加速度传感器响应时间快于磁传感器响应的现象,将加速度信号作为磁传感器信号的计时开关,并根据磁信号满足预设的阈值-脉宽信息来判断弹体该次动作是否为侵彻钢筋混凝土靶板层,完成侵彻层数过程的识别。通过建立侵彻模型,分析过载信息组成,确立刚体加速度分离方法,并通过对比加速度信号与磁信号在侵彻过程中的变化情况,分析信号峰值在侵彻过程中与靶板位置的关系,论证了探测方案的可行性。

论生态理念视阈下的环境艺术设计

随着社会经济的不断发展,人们开始意识到生态环境的重要性。因此,文章从生态理念的角度出发,探讨如何进行环境艺术设计,使环境艺术设计既能够充分满足人们的审美需求与空间需要,又符合一定的生态理念,从而实现自然环境系统与人类社会的和谐相处,使得环境艺术设计体现出人性化与生态化的有机协调与统一。

产品设计前景浅析

当代文化创意产业的发展为产品设计提出了转型的要求。通过对产品设计在此语境下的现状分析,做出相应的设计策略,对产品设计的未来发展方向进行展望,并寻找到一条正确的道路。文化创意应成为产品设计的深层源泉,而不应仅仅建设和发展大型园区,引入产品设计企业。企业对文化创意的深度挖掘和灵活化用,并在市场中延伸其设计策略。大众的设计教育同样是推进产品设计在文化创意产业中求得可持续发展的不竭动力。

论收入管理在媒体广告经营中的应用

广告经营是大部分媒体的主要收入。分析我国媒体广告经营的现状和问题,我国媒体广告经营仍然是以粗放型经营为主,根据收入管理的特点和实施条件,我国媒体广告应该引入收入管理,争取由粗放型经营向集约型良性转变。

Multi-objective integrated optimization based on evolutionary strategy with a dynamic weighting schedule

The evolutionary strategy with a dynamic weighting schedule is proposed to find all the compromised solutions of the multi-objective integrated structure and control optimization problem, where the optimal system performance and control cost are defined by H2 or H∞ norms. During this optimization process, the weights are varying with the increasing generation instead of fixed values. The proposed strategy together with the linear matrix inequality （LMI） or the Riccati controller design method can find a series of uniformly distributed nondominated solutions in a single run. Therefore, this method can greatly reduce the computation intensity of the integrated optimization problem compared with the weight-based single objective genetic algorithm. Active automotive suspension is adopted as an example to illustrate the effectiveness of the proposed method.

建筑策划在前海珑湾国际人才公寓项目的实践

建筑策划是建设阶段前期确定设计依据和设计需求的有效手段。本文基于威廉·佩纳的建筑策划理论以及美国国家建筑科学研究院在《全过程建筑设计指南》中对于建筑策划步骤与方法的描述,结合前海珑湾国际人才公寓项目进行策划实践。在建筑策划的六个步骤中,灵活利用问题搜寻法、问卷调查法、信息矩阵法、空间构成法等多种手段,结合项目实际情况,总结分析建筑策划理论在实践中的应用。

基于环境的建筑形体创作

在世界环境问题日渐受到人们关注的同时，科技文化也有了长足的进步，为建筑多元化发展提供了一个富于生态意义和时代特征的方向。建筑创作要充分考虑环境的因素已经成为众多设计者的共识。文章以理查德·罗杰斯的建筑实践为主要例子探讨了有关的设计策略与方法。

主动学习,快乐成长

本文从营造轻松活泼的学习氛围,激发学生主动学习的欲望;培养兴趣,促进学生主动学习的热情两个方面的做法和案例,对如何引导学生主动参与数学教学做了一些简要阐述,有不足之处敬请同行及各位老师批评指正。

Plan and Design of Landscapes as a Part of Construction of Beautiful Village

Construction of beautiful villages is an integral part of No.1 file issued by the central government and rural landscape planning plays an important role. The research reviewed the status quo of beautiful village construction, analyzed rural landscape planning and the optimized way for rural landscape planning, providing theoretical references for construction of beautiful village construction.

A method of automatic plane detection without random search

Plane detection is a prerequisite for many computer vision tasks. This paper proposes a new method which can automatically detect planes from two projective images. Firstly, we modify Scott’s feature point matching method by post-processing its result with the concept of similarity, and then get the lines matching according to feature points matching based on the approximate invariance of the features’ distribution between two images. Finally, we group all feature points into subsets in terms of their geometric relations with feature lines as initial sets to estimate homography rather than by a random search strategy (like RANSAC) as in most existing methods. The proposed method is especially suitable to detecting planes in man-made scenes. This method is validated on real images.

A New Rational-based Optimal Design Strategy of Ship Structure Based on Multi-level Analysis and Super-element Modeling Method

A new multi-level analysis method of introducing the super-element modeling method, derived from the multi-level analysis method first proposed by O. F. Hughes, has been proposed in this paper to solve the problem of high time cost in adopting a rational-based optimal design method for ship structural design. Furthermore,the method was verified by its effective application in optimization of the mid-ship section of a container ship. A full 3-D FEM model of a ship,suffering static and quasi-static loads, was used as the analyzing object for evaluating the structural performance of the mid-ship module, including static strength and buckling performance. Research results reveal that this new method could substantially reduce the computational cost of the rational-based optimization problem without decreasing its accuracy, which increases the feasibility and economic efficiency of using a rational-based optimal design method in ship structural design.

A Strategy for the Integration of Production Planning and Scheduling in Refineries under Uncertainty

A strategy for the integration of production planning and scheduling in refineries is proposed. This strategy relies on rolling horizon strategy and a two-level decomposition strategy. This strategy involves an upper level multiperiod mixed integer linear programming （MILP） model and a lower level simulation system, which is extended from our previous framework for short-term scheduling problems [Luo, C.E, Rong, G, ＂Hierarchical apthis extended framework is to reduce the number of variables and the size of the optimization model and, to quickly find the optimal solution for the integrated planning/scheduling problem in refineries. Uncertainties are also considered in this article. An integrated robust optimization approach is introduced to cope with uncertain parameters with both continuous and discrete probability distribution.

Energy Saving and Power Factor Correction for Industrial Plants in Hebron District

Energy efficiency can be improved by reducing the amount of energy that we demand, and by changing our behaviors to reduce the amount of energy that we waste. This scheme manipulates the problem of incremental demand, and low Power Factor （PF） for industrial plants, starting with walk through surveys, data analysis, providing advices to insure personnel involvement, and suggestions of practical circuits to attain the target. Elements of effective energy management program can be configured of management commitment, audit, analysis and implementation. Energy management opportunities can he operational and maintenance strategies, retrofit or modification strategies and new design strategies. The new technique of Power Factor Correction （PFC） that has been designed was the High Active Boost Power Factor Correction Pre-regulator Circuit, which was resulted in single / three phase PFC of about unity, in hand with a regulated output single phase voltage of about 220 VAC.

A novel virtual machine deployment algorithm with energy efficiency in cloud computing

In order to improve the energy efficiency of large-scale data centers, a virtual machine(VM) deployment algorithm called three-threshold energy saving algorithm(TESA), which is based on the linear relation between the energy consumption and(processor) resource utilization, is proposed. In TESA, according to load, hosts in data centers are divided into four classes, that is,host with light load, host with proper load, host with middle load and host with heavy load. By defining TESA, VMs on lightly loaded host or VMs on heavily loaded host are migrated to another host with proper load; VMs on properly loaded host or VMs on middling loaded host are kept constant. Then, based on the TESA, five kinds of VM selection policies(minimization of migrations policy based on TESA(MIMT), maximization of migrations policy based on TESA(MAMT), highest potential growth policy based on TESA(HPGT), lowest potential growth policy based on TESA(LPGT) and random choice policy based on TESA(RCT)) are presented, and MIMT is chosen as the representative policy through experimental comparison. Finally, five research directions are put forward on future energy management. The results of simulation indicate that, as compared with single threshold(ST) algorithm and minimization of migrations(MM) algorithm, MIMT significantly improves the energy efficiency in data centers.

Design and application of electric oil pump in automatic transmission for efficiency improvement and start–stop function

For the purpose of improving efficiency and realizing start–stop function, an electric oil pump(EOP) is integrated into an 8-speed automatic transmission(AT). A mathematical model is built to calculate the transmission power loss and the hydraulic system leakage. Based on this model, a flow-based control strategy is developed for EOP to satisfy the system flow requirement. This control strategy is verified through the forward driving simulation. The results indicate that there is a best combination for the size of mechanical oil pump(MOP) and EOP in terms of minimum energy consumption. In order to get a quick and smooth starting process, control strategies of the EOP and the on-coming clutch are proposed. The test environment on a prototype vehicle is built to verify the feasibility of the integrated EOP and its control strategies. The results show that the selected EOP can satisfy the flow requirement and a quick and smooth starting performance is achieved in the start–stop function. This research has a high value for the forward design of EOP in automatic transmissions with respect to efficiency improvement and start–stop function.

Design of Underwater Robot Lines Based on a Hybrid Automatic Optimization Strategy

In this paper, a hybrid automatic optimization strategy is proposed for the design of underwater robot lines. Isight is introduced as an integration platform. The construction of this platform is based on the user programming and several commercial software including UG6.0, GAMBIT2.4.6 and FLUENT12.0. An intelligent parameter optimization method, the particle swarm optimization, is incorporated into the platform. To verify the strategy proposed, a simulation is conducted on the underwater robot model 5470, which originates from the DTRC SUBOFF project. With the automatic optimization platform, the minimal resistance is taken as the optimization goal;the wet surface area as the constraint condition; the length of the fore-body, maximum body radius and after-body＇s minimum radius as the design variables. With the CFD calculation, the RANS equations and the standard turbulence model are used for direct numerical simulation. By analyses of the simulation results, it is concluded that the platform is of high efficiency and feasibility. Through the platform, a variety of schemes for the design of the lines are generated and the optimal solution is achieved. The combination of the intelligent optimization algorithm and the numerical simulation ensures a global optimal solution and improves the efficiency of the searching solutions.

AUV Modeling and Motion Control Strategy Design

To provide a suitable model for AUV simulation and control purposes, a general nonlinear dynamic model including a novel thruster hydrodynamics model was derived. Based on the modeling method, the "AUV-XX" simulation platform was established to carry out fundamental tests on its motion characteristics, stability, and controllability. A motion control strategy consisting of both position and speed control in a horizontal plane was designed for different task assignments of underwater vehicles. Combined control of heave and pitch was adopted to compensate for the reduction of vertical tunnel thrusters when the vehicle is moving at a high speed. An improved S-surface controller based on the capacitor plate model was developed with flexible gain selections made possible by different forms of restricting the error and changing the rate of the error. Simulation results show that the derived general mathematical model together with simulation platform can provide a test bed for fundamental tests of motion control. Additionally, the capacitor plate model S-surface control shows a good performance in guiding the vehicle to achieve the desired position and speed with sufficient accuracy.