Investigation of effects of virtual reality environments on learning performance of technical skills

Practical training is what brings imagination and creativity to fruition, which relies significantly on the relevant technical skills needed. Thus, the current study has placed its emphasis on strengthening the learning of technical skills with emerging innovations in technology, while studying the effects of employing such technologies at the same time. As for the students who participated in the study, technical skills had been cultivated in the five dimensions of knowledge, comprehension, simulation, application, and creativity, in accordance to the set teaching objectives and the taxonomy for students learning outcome, while the virtual reality learning environment (VRLE) has also been developed to meet different goals as the various technical skills were being examined. In terms of the nature of technology, operation of machines, selection of process parameters, and process planning in technical skills, VRLE has also designed the six modules of “learning resource”, “digital content”, “collaborative learning”, “formative evaluation”, “simulation of manufacturing process”, and “practical exercise” in particular for providing students with assistance in the development on their technical skills on a specific, gradual basis. After assessing the technical skills that have been developed for the time period of one semester, the students have reported finding VRLE to be a significantly effective method when considering the three dimensions of “operation of machines”, “selection of process parameter”, and “process planning”, though not so much so when it came to the dimension of “nature of technology”. Among the six modules, “simulation of manufacturing process” and “practical exercise” were the two that were most preferred by students for the three dimensions considered.     

Evaluation of the multivariate accommodation performance of the grid method

The present study examined the multivariate accommodation performance (MAP) of the grid method, a distributed representative human models (RHM) generation method, in the context of men’s pants sizing system design. Using the 1988 US Army male anthropometric data and ±2.5 cm of fitting tolerance, the grid method selected two key dimensions (waist girth and crotch height) out of 12 anthropometric dimensions and identified 25 RHMs to accommodate 95% of the population. The average MAP of the RHMs decreased dramatically as the number of anthropometric dimensions considered increased (99% for single dimension and 14% for 12 dimensions). A standardized regression model was established which explains the effects of two factors (sum of anthropometric dimension ranges; adjusted R² between key dimensions and other anthropometric dimensions) on the MAP of RHMs. This regression model can be used to prioritize anthropometric dimensions for efficient MAP improvement of men’s pants design.     

Evaluation of the multivariate accommodation performance of the grid method

The present study examined the multivariate accommodation performance (MAP) of the grid method, a distributed representative human models (RHM) generation method, in the context of men’s pants sizing system design. Using the 1988 US Army male anthropometric data and ±2.5 cm of fitting tolerance, the grid method selected two key dimensions (waist girth and crotch height) out of 12 anthropometric dimensions and identified 25 RHMs to accommodate 95% of the population. The average MAP of the RHMs decreased dramatically as the number of anthropometric dimensions considered increased (99% for single dimension and 14% for 12 dimensions). A standardized regression model was established which explains the effects of two factors (sum of anthropometric dimension ranges; adjusted R² between key dimensions and other anthropometric dimensions) on the MAP of RHMs. This regression model can be used to prioritize anthropometric dimensions for efficient MAP improvement of men’s pants design.     

世界技能大赛网络系统管理竞赛项目题型研究

自我院被国家确认为世界技能大赛网络系统管理竞赛项目的中国集训基地以来,我系计算机网络技术专业组 已经对该项目的题型进行深入的研究;明确了网络系统管理竞赛项目的能力要求;整理出计算机网络的相关技术,并将这些技 术文档引入到计算机网络技术专业的教学大纲,从而促进本专业培养大批量拥有世界技能大赛水平的网络技术专业人才。     

Network-based Accessibility Measures for Vulnerability Analysis of Degradable Transportation Networks

Accessibility is a fundamental concept in transportation analysis and urban planning. Typically, accessibility refers to the ‘ease’ of reaching opportunities for activities and services and can be used to assess the performance of a transportation and urban system. In this paper, we present network-based accessibility measures for assessing vulnerability of degradable transportation networks. The network-based accessibility measures consider the consequence of one or more link failures in terms of network travel time or generalized travel cost increase as well as the behavioral responses of users due to the failure in the network. To model different dimensions of travel behavioral responses, a combined travel demand model is adopted to estimate the long-term equilibrium network condition due to network disruptions. Numerical examples are conducted to demonstrate the feasibility of the proposed vulnerability measures for assessing degradable transportation networks. The results indicate that the accessibility measures derived from the combined travel demand model are capable of measuring the consequences of both demand and supply changes in the network and have the flexibility to reflect the effects of different travel choice dimensions on the network vulnerability.     

The 'question of professionalism' in the computer fields

In the late 1950s and early 1960s, the "question of professionalism" became a pressing issue for the emerging commercial computer industry. just who was qualified to be a programmer? Competing visions as to the answers to these questions contributed to an ongoing debate that caused turf wars, labor shortages, and varied approaches to professional development. The author explores the many diverse attitudes and opinions on what professionalism meant in the 1950s and 1960s     

Implementing a fuzzy expert system for ensuring information technology supply chain

In the business environment, information technology (IT) plays an important role for firms' performance. It provides information flow that makes the supply chain more robust and resilient without undermining its efficiency. Smart systems use artificial intelligence methods for solving problems and facilitating decision‐making through rule‐based deduction. Accordingly, these systems can present specialists' skills and simulate their thinking process. The primary goal of expert systems is to implement knowledge acquisition process by converting knowledge to wisdom. This process is vital for critical decision‐making regarding important issues such as determining necessities of a particular contract. Companies use professional liability insurance of the products and services to ensure the purchasers and prevent potential losses. Although this practice is highly prevalent, there is not any particular procedure for measuring necessities of contracts. The main purpose of this paper is to design a fuzzy expert system for measuring the necessities of professional contracts regarding insurance coverage and improve the supply chain management using IT. This system can measure and report these obligations, considering specifications of each project. Taking into perspective variety of professional services/products, we consider software as a type of professional contracts, extract its important indices and give it to the system as the input. After the necessary stages, the system produces a proper response and presents the generated response to the user. The software of this expert system is web based, and there are four operating layers in its architecture. We implemented this program in MS Visual Studio Framework with C#.NET programming language. Moreover, we implemented MS SQL‐Server Database Management.     

基于“模块化、导师制、项目化”的软件技术专业人才培养

本文阐述软件技术专业人才培养方案的制定与实施过程,提出把软件技术专业人才培养目标划分成层次递进的四个模块——计算机专业文化、网页美工、ASP．NET程序员、软件实施工程师,其中每一个模块融合若干个相关课程,每一个模块采用导师负责制,通过项目化的方式实施教学,从而达到传授知识与技能的目的,培养企业所需要的高素质技能型人才。     

Professional development to enhance teachers' practices in using information and communication technologies (ICTs) as cognitive tools: Lessons learned from a design-based research study

Technology integration in K-12 classrooms is usually overly teacher-centered and has insufficient impact on students' learning, especially in enhancing students' higher-order cognitive skills. The purpose of this project is to facilitate science teachers' use of information and communication technologies (ICTs) as cognitive tools to shift their practices from traditional teacher-centered methods to constructivist, student-centered ones. This paper describes the outcomes and lessons learned from an application of design-based research (DBR) in the implementation and refinement of a teacher professional development (PD) program that is a key component of the overall project. This DBR study involved 25 middle-school science teachers from 24 schools whose implementation of cognitive tools with their students in science classrooms and virtually through a social networking site were observed over four years. A mixed-methodology was utilized to examine the impact of the cognitive tools intervention on teachers' classroom practices and students' development of new literacy skills. Identifying reusable design principles related to technology integration was another focus of the DBR study. The results revealed teachers' positive changes in their classroom practices by gradually allowing students to take control over the use of technology, and positive impact on students' ICT skills and science learning. Design principles for future professional development programs aimed at preparing teachers to adopt a cognitive tools approach are described.     

Estimating parallel performance

In this paper we introduce our estimation method for parallel execution times, based on identifying separate “parts” of the work done by parallel programs. Our run time analysis works without any source code inspection. The time of parallel program execution is expressed in terms of the sequential work and the parallel penalty. We measure these values for different problem sizes and numbers of processors and estimate them for unknown values in both dimensions using statistical methods. This allows us to predict parallel execution time for unknown inputs and non-available processor numbers with high precision. Our prediction methods require orders of magnitude less data points than existing approaches. We verified our approach on parallel machines ranging from a multicore computer to a peta-scale supercomputer.     

Coverage-guided test generation for continuous and hybrid systems

In this paper, we describe a formal framework for conformance testing of continuous and hybrid systems, using the international standard ‘Formal Methods in Conformance Testing’ FMCT. We propose a novel test coverage measure for these systems, which is defined using the star discrepancy notion. This coverage measure is used to quantify the validation ‘completeness’. It is also used to guide input stimulus generation by identifying the portions of the system behaviors that are not adequately examined. We then propose a test generation method, which is based on a robotic motion planning algorithm and is guided by the coverage measure. This method was implemented in a prototype tool that can handle high dimensional systems (up to 100 dimensions).     

中职物联网毕业生职业发展路径调查研究

为了进一步明确面向中职物联网专业毕业生的工作岗位群、职业发展空间、岗位晋升等,促进专业内涵建设。该研究抽样调查浙江27家典型物联网企业、6所院校的中职物联网专业毕业生,得出80%毕业生的职场发展空间受限;学历、人际交流能力及专业技能是职场晋升的较大障碍;销售、技术研发及项目经理是绝大多数人的职位诉求。建议据此优化人才培养方案,推进"核心素养""、1+X"改革,落实教育质量提升,以解毕业生职场之困。     

当代视野下工业设计专业所需专业素养刍议

文章在当代设计学科不断拓展的新背景下，提出了工业设计专业需具备充分定义产品或服务，提供整合式解决方案以及良好团队合作和沟通的兰大核心能力，并阐述了三大核心能力所对应的一些相应能力要求。以期为工业设计专业能力素养培养研究、设计教育以及学科的发展提供有益的参考。     

智能科学与技术专业本科培养计划的面向应用思考

工科学校的人才教育应该以技术能力和技术创新的培养为目的,根据学校的自身条件、生源特点、社会需求来确定合适的培养计划。本文针对上海理工大学光电信息与计算机工程学院智能科学与技术本科专业的培养计划及专业建设,提出了以需求、技能、创新为目标的面向应用思考。     

多媒体用户界面评价标准探索

本文以多媒体交互程序为例,对交互指令程序的用户界面评价标准进行了综述,总结了十个关键评价尺度.并对每个评价尺度做了详细的解释,最后还给出了这个评价尺度标准的具体应用.     

Teacher value beliefs associated with using technology: Addressing professional and student needs

Studies have indicated that when teachers believe technology uses are valuable, they are more likely to incorporate those uses into their practices. This hermeneutical phenomenology study investigated the value beliefs that underlie teachers’ uses of technology. To measure value beliefs, teachers’ uses (and reasons for those uses) of technology for teaching and learning were examined. Data were collected from eight award-winning teachers through an interview, observation, and electronic portfolio. Findings indicated that teachers used technology to address professional (e.g., creating customized classroom materials, improving classroom management by engaging students) and student needs (e.g., enhancing student comprehension, equipping students with technology skills), all of which related to the underlying value belief of promoting student learning. Based on these findings, professional development activities should emphasize the potential impact of specific technology uses on student learning.     

Preparing undergraduate students for work in virtual product development teams

The development of innovative and competitive products and mastery of IT&T technologies are crucial for a company's long-term success in the global market. The main flag bearers for development are product developers, but it is questionable whether the existing systems are appropriate for the education of such professionals. For example, one study found large deficiencies concerning their skills in group interaction and ability to translate thoughts into action. Based on these and similar findings, a decision was made to organize an international course that would help students become competent members of product development teams. Integrated product development is a demanding and complex activity as it is, and its level of difficulty is additionally increased by the ever-changing business environment, primarily by functional associating of geographically disperse human resources. The paper describes the E-GPR (European Global Product Realization) course program, the used IT&T technologies, the way international teams were formed and the experiences and findings of the students, company representatives and lecturers who participated in this course. The authors believe that realism is the main strength of the course. Based on positive responses of all participants, the organizers decided to continue and further improve the E-GPR course.     

Using SERVQUAL to assess the quality of e-learning experience

Distance learning programs have been dramatically expanding in accordance with demand. Assessment of the quality of e-learning has become a strategic issue, one that is critical to program survival. In this study we propose a modified SERVQUAL instrument for assessing e-learning quality. The instrument consists of five dimensions: Assurance, Empathy, Responsiveness, Reliability, and Website Content. Data analysis from 203 e-learning students shows that four out of these five dimensions (except Reliability) play a significant role in perceived e-learning quality, which in turn affects learners’ satisfaction and future intentions to enroll in online courses. Managerial implications of the major findings are provided.     

新工科课程思政沉浸式体验教学研究——以自动线与机器人工作站系统集成技术课程为例

针对高职院校工业机器人技术应用方向的综合实践类课程对前置知识、技术技能水平的要求过高,导致学生积极性较差而选择机械式记忆考核所涉及的理论、实操要点以应付课程考核的现象,提出一种基于课程思政的沉浸式体验教学架构,通过模块化设计思政教学目标导向,仿中医用药之流程,将主药(教师引导教学)配以药引(课前针对学生的情感、行为发展历程做的预设),以学生作为“患者”,本着“三步交错并行”的“用药”(教学)顺序,“引药归经”展开沉浸式课程思政教学,以学生的过程性成长为关键成效指标(两个维度:知识技能+精神思想),提升学生自身技术技能水平的同时培养其职业道德素养等。