共查询到20条相似文献，搜索用时 234 毫秒
1.
《福建教育学院学报》2014,(2):F0003-F0003
Moral evaluation based on dialogue is the inevitable result of the generation of the dialogue paradigm of moral education in the pluralistic society and the application of the fourth generation of evaluation theory in the educational field. Moral education based on dialogue is a kind of evaluation that is based on educational dialogue. In addition to the general equality and openness for dialogue, the main feature is its educational nature whose main expression is its inner authority. The educational nature makes it possible to achieve the moral education evaluation function based on dialogue. The achievement of moral education evaluation based on dialogue requires us to innovate our evaluation concept fundamentally, constructing the teacher-student relationship that is based on inclusive dialogue, adopting interactive and dialogue-type evaluation, and making a distinction of the three different types of moral education evaluation based on dialogue. 相似文献
2.
Multi-attribute decision-making approach dealing with uncertain linguistic assessment information 总被引：1，自引：0，他引：1
Gu Jing Zhou Zongfang 《东南大学学报》2008,(Z1)
An approach is presented to deal with a multi-attribute decision-making problem in which the attribute weights are unknown and the attribute values take the form of uncertain linguistic variables. First, a linguistic assessment standard is set up to deal with the uncertain linguistic attributes, and the operation laws of uncertain linguistic variables and the uncertain linguistic weighting average(ULWA)operator are introduced. Then a ranking formula of uncertain linguistic variables based on expectation-variance is proposed. As for the case without weight information, a goal program based on a warp function is constructed to determine the attribute weights, and the ULWA operator is utilized to aggregate the assessment information of uncertain linguistic variables, and the corresponding alternatives are ranked by a formula based on expectation-variance. Finally, a numerical example is given, and the results demonstrate that it is much easier and faster for the ranking method based on expectation-variance when compared to the existing methods. 相似文献
3.
汤雁 《天津大学学报(英文版)》2004,10(3):225-228
The subject of the work is to propose a series of papers about adaptive finite element methods based on optimal error control estimate. This paper is the third part in a series of papers on adaptive finite element methods based on optimal error estimates for linear elliptic problems on the concave comer domains. In the preceding two papers (part 1 : Adaptive finite element method based on optimal error estimate for linear elliptic problems on concave comer domain; part 2:Adaptive finite element method based on optimal error estimate for linear elliptic problems on nonconvex polygonal domains), we presented adaptive finite element methods based on the energy norm and the maximum norm. In this paper, an important result is presented and analyzed. The algorithm for error control in the energy norm and maximum norm in part 1 and part 2 in this series of papers is based on this result. 相似文献
4.
Desktop calibration of automatic transmission （AT） is a method which can reduce cost, enhance efficiency and shorten the development periods of a vehicle effectively. We primary introduced the principle and approach of desktop calibration of AT based on the condition of coupling characteristics between engine and torque converter and obtained right point exactly. It is shown to agree with experimental measurements reasonably well. It was used in different applications abroad based on AT technology and achieved a good performance of the vehicle compared with traditional AT technology which primary focuses on the drivability, performance and fuel consumption. 相似文献
5.
Space-time signal processing based on multiple-input multiple-output（MIMO） systems is an active research field in which interfering signals are cancelled and multiuser detection is achieved using space diversity. In a Rayleigh fading channel, space-time block cedes using multiple transmitting antennas can improve system performance and reduce bit-error-rate for multiuser detection. In this paper, several antenna configurations are designed for DS-CDMA communication in MIMO systems. Space-time linear multinser detection and space-time serial interference cancellation multiuser detection are simulated. Bit-error-rate and computation complexities of the two methods are compared. Conclusions are given in the end. 相似文献
6.
WU Xiao-juan ZHU Xin-jian CAO Guang-yi TU Heng-yong 《浙江大学学报(A卷英文版)》2007,8(9):1505-1509
The solid oxide fuel cell (SOFC) is a nonlinear system that is hard to model by conventional methods. So far,most existing models are based on conversion laws,which are too complicated to be applied to design a control system. To facilitate a valid control strategy design,this paper tries to avoid the internal complexities and presents a modelling study of SOFC per-formance by using a radial basis function (RBF) neural network based on a genetic algorithm (GA). During the process of mod-elling,the GA aims to optimize the parameters of RBF neural networks and the optimum values are regarded as the initial values of the RBF neural network parameters. The validity and accuracy of modelling are tested by simulations,whose results reveal that it is feasible to establish the model of SOFC stack by using RBF neural networks identification based on the GA. Furthermore,it is possible to design an online controller of a SOFC stack based on this GA-RBF neural network identification model. 相似文献
7.
Research on enterprise risk management capability is conducted with a view of discerning and processing risks, in which an evaluation index system and an evaluation model of enterprise risk management capabilities are constructed. The risk management capability consists of four aspects, i.e. risk identification capability, risk assessment capability, risk planning capability and risk control capability. Risk identification and assessment capabilities reflect the level of enterprises on finding and analyzing risks efficiently, while risk planning and control capabilities reflect the level of enterprises on resolving risks effectively. Each of capabilities is then further divided into more detailed elements based on the characteristics of enterprise development for a quantitative analysis of enterprise risk management capability. The approach adopted is a quantitative technique based on the use of fuzzy comprehensive evaluation. Finally, a case is pulled in to illustrate the feasibility of the method from an empirical perspective. This study is expected to be helpful for enterprises in cultivating their core capabilities. 相似文献
8.
A novel posture alignment system for aircraft wing assembly 总被引：2，自引：0，他引：2
A novel 6-degree of freedom （DOF） posture alignment system, based on 3-DOF positioners, is presented for the assembly of aircraft wings. Each positioner is connected with the wing through a rotational and adsorptive half-ball shaped end-effector, and the positioners together with the wing are considered as a 3-PPPS （P denotes a prismatic joint and S denotes a spherical joint） redundantly actuated parallel mechanism. The kinematic model of this system is established and a trajectory planning method is introduced. A complete analysis of inverse dynamics is carried out with the Newton-Euler algorithm, which is used to find the desired actuating torque in the design and path planning phase. Simulation analysis of the displacement and actuating torque of each joint of the positioners based on inverse kinematics and dynamics is conducted, and the results show that the system is feasible for the posture alignment of aircraft wings. 相似文献
9.
SHI Jian JIA Yu-fu DONG Tian-lin LI Jiang 《重庆大学学报(英文版)》2006,5(3):143-151
1 Introduction a At present, the research work on wireless sensor networks is based on the assumption that the energy of a sensor node is provided by the battery and can not be regenerated. The lifetime of the node is limited and ephemeral. Hence research… 相似文献
10.
A cluster analyzing algorithm based on grids is introduced in this paper,which is applied to data mining in the city emergency system. In the previous applications, data mining was based on the method of analyzing points and lines, which was not efficient enough in dealing with the geographic information in units of police areas. The proposed algorithm maps an event set stored as a point set to a grid unit set, utilizes the cluster algorithm based on grids to find out all the clusters, and shows the results in the method of visualization. The algorithm performs well when dealing with high dimensional data sets and immense data. It is suitable for the data mining based on geographic information system and is supportive to decision-makings in the city emergency system. 相似文献
11.
曹象臣 《深圳职业技术学院学报》2011,10(1):8-12
文章对IPCAM（IP Camera）网络摄像机在网络音频对讲过程中的各种回声干扰产生的原因进行了分析,对于其中的声学回声消除（AEC）算法进行了探讨,并在基于TMS320系列DSP芯片的IPCAM系统上,编程实现了一个全双工的声学回声消除器软件．这个实现是基于规格化最小均方差（NLMS）的算法,通过调整自适应FIR滤波器的可替换步长以调整方差收敛的速度,并在网络环境下进行实测,达到有效消除声学回声与延迟,均在可接受的范围内,即回声残余信号比远端信号低30dB、对方声音信号延迟小于29ms．这一算法同样可以应用于VOIPN络电话、远程可视对讲系统等环境,根据需要在实际的网络环境下调整步长,以达到消除回声和缩短延迟的最优化效果． 相似文献
12.
刘远东 《深圳信息职业技术学院学报》2006,4(3):15-19
本文论述了利用单片机技术和归一化最小均方误差(NLMS)算法来抑制语音回路的声反馈的理论基础、硬件设计和软件设计,给出了程序框图。本研究的创新点就在于用SoC单片机来实现声反馈抑制。 相似文献
13.
This study was originally planned to examine the effects of a story-based cognitive behavior modification procedure specifically designed to help the fifth grade elementary school students to manage their anxiety before they attend a nation-wide secondary school entrance examination. The examination was cancelled after the children attended. This naturally occurred treatment was included in the study and the effect of the cancellation on the maintenance of the treatment outcome was also investigated. Twenty subjects (10 girls, 10 boys) were selected out of a total of 144 fifth grade children who would attend the exam, on the basis of the Turkish version of Test Anxiety Inventory and, assigned to treatment and control groups. The results showed that the story based cognitive behavior modification procedure was more effective than no treatment in reducing the subjects' test anxiety and the effect was maintained after cancellation of the first and three days prior to the second examination. The results also demonstrated that the effectiveness of the procedure was superior in modifying the emotionality component of test anxiety and this effectiveness continued after the cancellation of the examination. 相似文献
14.
Most institutions of higher education allow students to drop or add courses in the first 2–3 weeks of each term (D&A). Arguing
that course cancellation is not merely an administrative issue involving enrollment trends but represents complex decision
making processes taken by students, this study investigated antecedents and correlates of course cancellation during a D&A
period in 109 elective courses. Student ratings of the teachers (SRT) and characteristics of the syllabi distributed in the
first class session were investigated as predictors of course cancellation. Rates of cancellation were significantly predicted
from SRT and from syllabus workload difficulty—lower quality teachers (SRT-based) and more difficult courses (syllabus-based)
being cancelled more frequently. Analysis of a sub-sample of truly elective, high-priority courses revealed that these correlations
were intensified in teacher-centered lecture courses, but nullified in student-centered seminar courses, in which students
write independent research papers. The importance of students’ course selection and course cancellation as decision making
processes, the methodology based on institutional data rather than students’ self-reports, and the unique effects of course
difficulty on students’ decisions were discussed.
相似文献
| Elisha BabadEmail: |
15.
酒店顾客的no—show和取消预订行为直接影响酒店的收益管理,但与此相关的研究成果较少。通过对深圳大梅沙京基喜来登度假酒店长达半年的no—show和取消预订数据为样本进行定量分析,结果显示：整体上no-show和取消预订的顾客以男性商务顾客居多;顾客大多为临时的行程取消或更改而取消预订,且性价比和顾客对酒店的信任度对此有一定影响;散客尤其是商务顾客有着较为明显的规律,性别差异也极为明显。酒店应对顾客的no—show和取消预订行为予以重视。 相似文献
16.
我国现行合同法把协议解除与行使解除权解除合同并立为合同终止的基本类型,造成了合同终止与合同解除在立法上的包涵,使得合同解除的溯及力在逻辑上出现了矛盾.进而言之,合同解除制度给理论界与实务部门提出了一个重大的理论课题.我国应将协议解除合同与合同解除制度区别开,构建以稳定合同关系、保障合同权威性为基础,符合合同法的立法目的及其基本原则的合同解除制度. 相似文献
17.
林炜鹏 《韩山师范学院学报》2011,32(3):46-49,61
提出了一种基于DFT线性和循环移位性质的子载波预留方案,即利用DFT变换的线性和循环移位性质,使用非预留子载波产生削峰信号,利用预留子载波传输峰值信号的幅度、相位和位置等信息．仿真结果验证了此改进算法的有效性。 相似文献
18.
仲裁是依照当事人意思自治原则,将其间发生的争议交由仲裁机构解决的一种便捷、高效的处理纠纷的方式。仲裁法规定了撤销裁决和不予执行裁决两种司法监督方式。但在实践中,由于仲裁裁决的撤销制度问题重重,以至学界对于取消该制度的呼声越来越高。文章就此对仲裁裁决撤销中存在的问题作一简要分析,并提出相应的对策。 相似文献
19.
提出基于TDNN神经网络的线性噪声消除器，讨论了它的模型与学习算法及其通用逼近性．该噪声滤除器具有神经网络分布式并行信息处理能力，利用TDNN逼近噪声，然后从测量中消去噪声得到有用信号，具有较好的鲁棒性和除噪性能。 相似文献
20.
根据某篇土地卖契的地权之名与地权之实,主要是地权之实得出地权转移的语义结论,称之为单篇解读.把原始白契看作单篇,根据原始白契、乡政府鉴证草契、县政府颁发赤契和契税过户注销土地证所组成的契约系统得出地权转移的语义结论,称之为系统解读.系统解读的语义结论能反映地权转移的真实历史.因此,当单篇解读与系统解读的语义结论不一致时,应把系统解读的语义结论视为地权转移的历史结论.并非每个单篇解读的语义结论皆能反映地权转移的真实历史,因此把单篇解读的语义结论视为地权转移的历史结论,应采取谨慎态度. 相似文献