计算机化多阶段自适应测试探析--以《中国青少年学能发展量表》为例

为提高测评效率、改善测量精度、加强考试安全、节省测试成本,并方便测验实施,《中国青少年学能发展量表》正在升级为计算机化多阶段自适应测试。文章结合量表的升级工作,探讨了这种测评模式的含义和特点,提出了使用该模式的10个前提条件,并就如何选题组卷、如何确定各测试阶段分流分数线,以及如何实施考前等值等问题,提出了具体的问题解决方案。

素养导向下的小学语文试题研制——以区域四至六年级期末评估卷为例

评价的根本目的是为了促进学生学习,改善教师教学。严谨、科学的试题应具备“全面评价学习状态,检测学业水平”“全面体现教材意图,落实教学目标”“积极改进教学方式,实现素养提升”的功能。以“紧扣语文要素,明晰学能发展”“兼顾‘两阶能力’,赋予合理权重”“关注人文精神,体现价值导向”为命题原则,提出“联结生活,指向真实语境的运用”“提供支架,指向高阶能力的培植”“开放话题,指向表达诉求的满足”的命题策略。

Recent Developments in Functional Crystals in China

Functional crystals are the basic materials for the development of modern science and technology and are playing key roles in the modern information era. In this paper, we review functional crystals in China, including research history, significant achievements, and important applications by highlighting the most recent progress in research. Challenges for the development of functional materials are discussed and possible directions for development are proposed by focusing on potential strengths of these materials.

Analysis on Evaluating Comprehensive Efficiency of Enterprise Leaders＇ Performance Based on Scientific Development Outlook

In former researches there are primary theoretical studies and qualitative analyses on enterprise leaders＇ effectiveness and performance, and there are a few studies on quantitative analyses which mostly relies on the method of comparing differences and ratio of divergence to evaluate leaders＇ performance by stage statistics. This paper illustrates how to evaluate Comprehensive Efficiency （CE） based on Scientific Development Outlook, which reflects overall development of enterprise leaders＇ performance, depends on measuring Output Efficiency Index （OEI） and Cost Efficiency Index （CEI） of enterprise leaders＇ performance, and adopts the C^2R model in Data Envelopment Analysis （DEA）.

Investigation of Eddy Current Nondestructive Testing for Carbon Fiber-Reinforced Plastic （CFRP） Based on Electromagnetic Field Analysis

CFRP （carbon fiber reinforced plastic） is used extensively in aircraft and spacecraft structures, because of its excellent mechanical properties. Ultrasonic testing, which is used as a non-destructive testing technique for CFRP, requires a contact medium. In contrast, eddy current testing does not require a contact medium, and when used for CFRP testing it has advantages not available with other techniques. CFRP is a laminate, with each layer being anisotropically conductive, and the distribution of the induced eddy current is yet to be determined. Here, to determine the eddy current distribution in the detection of flaws in cross-ply CFRP （0°/90°） by using a cross-point probe, we performed an FEM （finite element method） analysis of electromagnetic fields. We investigated the nature of the flaw signals and the differences in eddy current distributions between materials with and without flaws.

Acoustic Valve Integration in Exhaust Line Systems

In recent years the demand for the acoustic performance of exhaust systems has increased and will further increase in the future. The main drivers are new pass-by-noise regulation and new powertrain technologies paired with exhaust muffler volume, weight and costs constraints. In the following paper several application examples for Adaptive ValveTM （self-actuated in-pipe valve）, in-muffler valve and electric valve are shown and the related benefits on the system performance are assessed. It is shown that implementing a valve into an exhaust system has a significant influence on the NVH performance. The resulting backpressure penalties can be minimized using the right implementation strategy of the valves in the exhaust system. Hence the exhaust system has to be specifically designed for the integration of a valve. All three valve types have additional benefits to their standard application for overall noise reduction and muffler volume reduction, which are analyzed. The Adaptive ValveTM, for example, is often used on cars with long pipe routing and has the additional benefit of reducing pipe resonance in the system. Another example, the electric valve, can be coupled with vehicle communication networks and hence the flexibility in application is significantly increased.

Dynamics of the Coordination of Economy-Society and Resource-Environment in Shandong Peninsula,China

Shandong Peninsula,as a more developed region in Shandong Province even the east coast of China,is facing challenges from resources and environment pressures.This paper tried to track and assess the coordination status and the dynamic between resource-environment and economy-society systems in Shandong Peninsula during 2001-2008 in order to provide decision support for regional sustainability.An appraisal index system was built including five aspects of harmony degree(A),sustainability degree(B),opening degree(C),stability degree(D) and controllability degree(E).The results showed that:1) The coordination level of resource-environment and economy-society in Shandong Peninsula has continuously grown,and it has undergone three stages:no coordinated degree(2001-2002),weak coordinated degree(2003-2006) and basically coordinated degree(2007-2008).2) Five indexes of criterion hierarchy also increased overall,but each index showed different trends.Harmony degree,sustainability degree and opening degree rose all the time,while stability degree and controllability degree alternately rose and fell.The improvement of controllability degree was the slowest.3) The aggravating trend of environmental pollution was slowing down.The economic growth was driven by industrial growth and urbanization typically and investment was still the main force to pull the regional economic growth.At the same time,technology and education were becoming more and more important for economic growth.The level of foreign capital utility declined and the geographical advantage of Shandong Peninsula was exerted.Meanwhile some characteristics of knowledge economy were presenting.Water resources become the main constraint factor of fast development in Shandong Peninsula.It is necessary to further strengthen the coordination ability of government on regional sustainable development.

Correlation of the positive stress ratio effects on fatigue crack propagation rate of aluminium alloys based on a new parameter da/dS

In-situ SEM (Scanning Electron Microscope) observation of fatigue crack propagation in aluminium alloys reveals that crack growth occurs in a continuous way over the time period during the load cycle. Based on this observation, a new parameter da/dS is introduced to describe the fatigue crack propagation rate, which defines the fatigue crack propagation rate with the change of the applied stress at any moment of a stress cycle. The relationship is given between this new parameter and the conventional used parameter da/dN which describes the fatigue crack propagation rate per stress cycle. Using this new parameter, an analysis has been performed and a model has been set up to consider the effect of the applied stress ratio on the fatigue crack propagation rate. The obtained results have been used to correlate the published test data and a good correlation has been achieved. This method is very easy to use and no fatigue crack closure measurement is needed, therefore this model is significant in engineering application.

On the relation between home numeracy activities and preschool children＇s numeracy development

This mini-review focuses on the question of how home numeracy experience （i.e.,number-related activities at home） may affect a child＇s numeracy development. Evidence from young children suggests that trajectories of number learning differ for children having different home numeracy experiences. Children involved in higher frequency of direct numeracy practice tend to have higher numeracy skills, but the result becomes more complicated when considering the types of home numeracy activities. The relationship between the home numeracy experience and preschool children＇s nurneracy development may shed light on how children acquire number skills and develop their mathematics competence.

Role of computer teaching in employment-oriented vocational education

This paper starting from the current issue of computer teaching profession, proposes action-oriented approach for employment -oriented in the computer teaching. The implementation of action-oriented approach breaks the traditional teaching model, combine the learning of specialized knowledge and cultivation of professional expertise organically, and thus enhance the students＇ active learning, the ability to take the initiative to explore, making them develop in professional competence, social skills and personality

On the theoretical framework and practice of financial development and financial supervision

Along with the history of the development of financial regulation, we can see that the theory of evolution has experienced from financial liberalization to financial supervision, financial regulation, then to the stage both with the safety and efficiency of financial supervision ; development of the theory of financial regulation experienced the theory of financial supervision represented by classical economics and neo- classical economic theory, to the Keynesian theory and financial repression theory, financial fragility hypothesis, the progressive liberalization of the financial road, then to the financial regulatory theory, regulatory function theory concept, regulatory incentives theory under the framework of economics of information in the 1990s. You can see the way scholars will not have feared in the study of financial regulation, and each theory proposed has its special significance in the special economic and financial environment at the time, and we can not necessarily say what kind of theory is advanced in other theory.

Heading for Dialogue Teaching： On Strategies of Constructing Ideal Discourse Environment

As one of the directions of the college classroom teaching reform, constructing dialogue teaching should be the trend to cultivate students＇ deep thinking ability. This paper, based on the analysis of the teaching dialogue objective and textual environment, recognizes that promoting the students deep thinking should be the fundamental goal of teaching dialogue and constructing an ideal textual environment is the premise of teaching dialogue. The study taking ＂Market Survey and Forecast＂ course for the pilot, makes exploration based on ＂flipped classroom＂ in the full use of network learning platform. The analysis of differences in teaching dialogue among students with different academic achievement, as well as the analysis of factors on students involved in teaching dialogue behavior show that in the construction of the textual environment, the cultivation of students＇ autonomic learning ability is the foundation of dialogue teaching, the enhancement of students＇ cooperative learning ability is the core of dialogue teaching, and the establishment of the community of classroom learning is the main line of dialogue teaching.

（Re）Constructing Pedagogical Knowledge in English as a Foreign Language Teacher Education Courses

English language teaching in the post-method condition demands the preparation of critical professionals capable of developing their teaching practice to enhance their pupils＇ language learning process. These professionals should also be able to recognize their prior knowledge as a potential tool to teach and to act autonomously in different educational contexts. Therefore, pre-service teacher education courses need to provide favorable conditions for teacher candidates to engage in reflective practice in order to foster continuous professional development. The main goal of this paper is to discuss the complexity of the pedagogical knowledge （re）construction process in an English as a foreign language （EFL） teacher education course, attempting to understand prospective teachers＇ pedagogical actions and strategies used to cope with classroom problems in their teaching practice. For this reason, some examples of this dynamic process, obtained by class recordings and reflective sessions with future teachers were examined. Results indicated that through self-assessment and reflection, stimulated by these sessions, student-teachers were able to recognize problems in their teaching procedures, as well as analyze their teaching practice and （re）construct their pedagogical knowledge, favoring their students＇ language learning process and their own teaching approach.

The analysis on the teaching mode reform of the college English linguistics course

As an important communicative language, English has become an important part of college education in the process of the growing education reform, therefore, the college English linguistics course teaching mode reform is the inevitable trend of social development to a certain extent, it has the important influence on promoting the student＇ s ability improvement. This paper analyzes the main problems of the college English linguistics course teaching, conducts a comprehensive analysis of the reform ideas for the college English linguistics course teaching mode and puts forward the mode of the college English linguistics course teaching reform strategy to really improve the level of college English linguistics course teaching.

Research and Practice on the College English Listening and Speaking Teaching

With the growing trend of globalization, English learning enthusiasm has increased in the land of China. Universities are no exception, the state of college English teaching invests labor, material and time, which is enormous. However, far more than the input and output did not reach the desired level that mainly reflected in the students＇ listening and speaking ability that is generally poor. The traditional thing on teaching students English reading, writing and translation capabilities are resulting in a ＂dumb＂ English, ＂deaf＇ English everywhere. In an increasingly integrated world economy today, English is a communication tool; the user in community uses the ability to meet a higher requirement. With reading, writing and translation capabilities, listening, and speaking skills for university graduates, they can have the ability to survive in nature. In the communication, listening and hearing are instant, they did not understand, and cannot say; in a word the communication is doomed to fail. Reading and speaking can be delayed when people cannot read nor write, they can look into the dictionary, ask others with slow discretion.

Dark Energy Accretion onto a Black Hole in an Expanding Universe

By using the solution describing a black hole embedded in the FLRW universe,we obtain the evolvingequation of the black hole mass expressed in terms of the cosmological parameters.The evolving equation indicates thatin the phantom dark energy universe the black hole mass becomes zero before the Big Rip is reached.

How Trainee Translators＇ On-line Communication Influencing Their Competence Development

Translation competence （TC） is the knowledge and skills that a translator needs to know in order to implement translation activities. The current research is based on the website translation project of Xianning News Online. Contrastive analysis is carried out on the trainee translators＇ TC development. By comparing the TC prior and post the project, conclusion is made on the dynamic development of the trainee translators＇ TC within the same environment and a detailed analysis is given on the factors that influence their TC development. The final part is about possible suggestions for future translator training.

Research progress of artificial psychology and artificial emotion in China

Since the concept of artificial psychology and artificial emotion was first presented, it has become a topic of interest in academic circles and enterprises. In this article, we first briefly introduce the basic concepts and principles of artificial psychology and artificial emotion, analyzing the unified macro-model of the cross-disciplinary system architecture against the need-motivation-behavior framework. Second, we discuss the origin of artificial psychology and artificial emotion, its course of development, and its present situation in China. We also present a review of the published papers and research endeavors of Chinese universities and research institutions and the technical engineering applications of artificial psychology and artificial emotion. Finally, we summarize the challenges to the further development of artificial psychology and artificial emotion and our recommendations for improving the cognitive computing model of psychological states and developing reliable and accurate humanoid interaction and cooperation technology, robot platforms with emotions and humanoid interaction and cooperation capabilities, and humanoid robots for the elderly and the disabled in smart homes. We believe that, with intensive research, artificial psychology and artificial emotion may be developed further and may eventually reach maturity.

Overview of Questionnaires about Teachers＇ Professional Development in Higher Vocational Colleges

Teachers＇ professional development in higher vocational colleges is a primary condition for students＇ development, as well as a significant guarantee for the development of higher vocational education. It has been discovered in studied that higher vocational teachers attach great importance to their teaching practice ability and professional practice ability, and desire to be promoted. Comparatively speaking, the growth approaches of higher vocational teachers ＇ teaching practice ability remain to be further studied.

Experimental Vehicles Program Aides in Innovative Hands-on Learning Experiences

The EVP （experimental vehicles program） was created in 2004 as an umbrella program for five different undergraduate experimental vehicle design teams. These projects consist of the Solar Vehicle, Moonbuggy, Baja SAE （sina app engine）, Formula SAE and Solar Boat. The goal of the EVP is to foster undergraduate student development through hands-on construction of experimental vehicles with the guidance of faculty mentors and partnerships with both national and international industry leaders. Each EVP project performs a vital function in the professional development of students. The projects provide a forgiving environment in which students can test their classroom knowledge in a real-world setting and learn important skills such as leadership, effective communication and working as a team member. Furthermore, the students in the EVP develop highly versatile and qualified skill sets that will allow them to fill various positions within the workplace. In the past, 90% of EVP graduates have been able to obtain highly regarded national and international positions upon graduation due to their real-world experience gained throughout their involvement in the EVP. Each year the EVP sponsors up to 60 interdisciplinary students that come together in peer-led teams to combine and expand upon their classroom knowledge in building innovative vehicles. The successes of the MTSU （Middle Tennessee State University） EVP have been recognized by becoming the national model for hands-on engineering education; helping engineering students take classroom knowledge and apply it to real-world situations. Students work to design, construct, and test novel vehicle designs for participation in national and international competitions. Due to the competitive nature of each of the events, students must use cutting edge technology and design methods in order to create the best entries possible. Often times, this means creating partnerships with industry leaders who help mentor the students from the design conception, the fabrication through the manufacturing of each vehicle.