Assessing Actuarial Projections Accuracy: Traditional vs. Experimental Strategy

This paper gives an overview of the Lee Carter method and reiterates the feasibility of using it to construct mortality forecast for the population data. In a first step, the model is fitted in a traditional way and used to extrapolate forecast of the time-varying mortality index. The observed pattern of the mortality rates shows a different variability at different ages, highlighting that the homoscedasticity hypothesis is quite unrealistic. Thus, in a second step, the paper aims to produce more reliable mortality forecasting, focusing on the errors in the estimation of the model parameters. The robustness of the estimated parameter is analysed throughout an experimental strategy which allows to assess the robustness of the Lee Carter model by inducing the errors to satisfy the homoscedasticity hypothesis. The graphical and numerical results are tested by means of a comparison in terms of prediction accuracy.

The BOUT Project; Validation and Benchmark of BOUT Code and Experimental Diagnostic Tools for Fusion Boundary Turbulence

A boundary plasma turbulence code BOUT is presented. The preliminary encour- aging results have been obtained when comparing with probe measurements for a typical Ohmic discharge in HT-7 tokamak. The validation and benchmark of BOUT code and experimental diagnostic tools for fusion boundary plasma turbulence is proposed.

Qinghai-Tibet Expressway experimental research

As one part of the National Highway Network Planning in China, the Qinghai-Tibet Expressway （QTE） from Golmud to Lhasa will be built in the interior of the Qinghai-Tibet Plateau （QTP） across about 630 km of permafrost lands. Due to the problematic interactions between the engineering foundations and permafrost, the frozen-soil roadbed of the QTE will be subjected to the more intense thermal disturbances due to the wider black surface. The design and construction for long-term thermal and mechanical stability will face more severe challenges than those in ordinary highways and railways in the same region. In order to provide scientific support for cold regions engineering practices, the QTE Experimental Demonstration Project （EDP） was constructed in situ in the vicinity of the Beilu＇he Permafrost Station in the interior of the QTP. In this paper, the anticipated problems of the proposed QTE project are enumerated, and the structures of the test sections for QTE EDP are described. Through numerical simulations, it was found that the heat transfer processes occurring in each specific road structure are significantly different. The heat accumulation in the highway embankment is mainly due to the black bituminous pavement, but in the railway embankment with its gravel surfaces, it mainly comes from the side slopes. As a result, the net heat accumulation of the highway embankment is three times higher than that in the railway. In expressway, the heat accumulation is further increased because of the wider pavement so that significantly more heat will be accumulated in the roadbed beneath the centerline area. Thus, the thermal stability of the fro- zen-soil roadbed and the underlying permafrost of the QTE can be seriously threatened without proper engineering measures protection against thawing. Based on research and practical experiences from the operating Qinghai-Tibet Railway （QTR） and the Qinghai-Tibet Highway （QTH）, combined with the predicted characteristics of heat transfer in an expressway embankment, nine kinds of engineering measures for mitigating the thaw settlement of foundation soils through the cooling the roadbed soils were built and are being tested in the EDP. The design of the monitoring system for the EDP and the observed parameters were also described.

A Cooperative Activity on Quenching Process Simulation Japanese IMS-VHT Project on the Benchmark Analysis and Experiment

Japanese IMS-VHT project on the Virtual Heat Treatment tool for monitoring and optimising HT process in relation with the international cooperative programs is briefly introduced. This project motivates to develop virtual tools for computer to optimize the heat treatment condition and to support decision for HT operation by knowledge based database in addition to process simulation. As one of the activities with the cooperation of the Society of Materials Science, Japan and the Japan Society for Heat Treatment, a benchmark project is undergoing. This includes simulation of carburized quenching process of a cylinder, disc, and ring as well as a helical gear by use of common data of materials properties and cooling characteristics by several available simulation programs. A part of the newly obtained results is presented as an interim report.

Construction and Practice of Cloud-based Experiment and Innovation Project Supporting Platform for Computer Science Education

Higher and more requirements on experiments and innovation projects of computer science courses is brought forward to promote the "Double First Class". For these requirements, the cloud-based experiment and innovation project supporting platform is introduced in this paper. On the one hand, the platform could satisfy the diversified resource requirements of both teachers and students in course experiments and innovation projects. On the other hand, the feature of "construct once and access anywhere" could achieve higher resource utilization rate and lower costs than the traditional "lab-based" experiment mode. The supporting platform has been applied to practice and gains a lot of positive feedbacks.

基于Proteus仿真的微机原理与应用研究性实验教学项目设计

实验教学是《微机原理与应用》课程教学的重要组成部分,针对实验内容单一、开放性与启发性不足等问题,开展了基于Proteus仿真的综合实验项目设计。该实验以电压报警系统的实现为目标,基于研究性教学思想设计了由电压采集、并行接口控制、电压值显示、声光报警以及紧急事件5个子实验项目构成的阶梯递进式实验内容,形成了以目标为引导的实验教学体系。实践证明,Proteus仿真软件能够充分发挥研究性教学思想,有效激发学生主动学习和自主实践的兴趣,提高运用理论知识解决综合工程问题的能力,对科学研究思维和创新实践精神的培养有着积极的促进作用。

自然对流下蒸汽凝结表面传热系数测定实验装置研制

自然对流下蒸汽凝结表面传热系数测定实验是将蒸汽通过一组表面状态各不相同的管道,测定管道在大空间空气介质中自然冷却过程中的蒸汽凝结表面传热系数。由于管道的材质、几何形状、接触方式及管外空气流动状况都会不同程度地影响换热效果,因此测定每根管道的表面传热系数值,可条理性和系统性地分析影响传热过程的各因素。该文设计了自然对流下蒸汽凝结表面传热系数测定实验装置,可开展管道材质、肋片结构、管道横截面几何形状、管道保温材料对传热系数的影响实验研究。应用实践表明,实验项目内容全面,提高了学生的课堂积极性,具有良好的教学效果。

“无线组网与性能测试”综合教学实验设计

针对综合实验中知识点融会贯通不够,工程性不强等问题,设计了“无线组网与性能测试”综合实验。以应急通信、军事演习为背景,涵盖环境勘察、链路预算、组网设计、性能测试、技术优化等环节,设置多层任务,逐步提升学生解决复杂问题的综合能力,培养学生不断探索的科学精神。紧跟通信行业发展,提出以“学生为中心”,采用“组内协作、组间较量”机制,创新任务驱动的PBL教学,构建“多维度、全方位”的评价机制。有助于学生专业知识的综合运用和工程素养与科学思维的培养,最终形成学生自身的知识架构,实现实验教学的“铸魂性、创新性、高阶性、挑战度”。

新基建视域下物联网专业实验教学体系研究

建立科教协同的实验教学平台,推动智能实验室建设是新基建的重点方向。物联网工程作为支撑国家战略性新兴产业发展的新工科专业,其实验教学在人才的培养过程中至关重要。然而,现有实验教学体系受资金、场地、师资力量、网络条件等因素制约,很难直观呈现规模化、创意化物联网实验,尤其是过程化物联网综合实验。重点研究了新基建视域下如何构建符合物联网产业需求和人才培养的实验教学过程和实验教学体系。通过对物联网专业课程结构和人才需求进行分析,结合学校人才培养定位和物联网产业链现状,讨论了现有实验教学平台的不足。同时,以物联网的技术体系结构为主线,对物联网实验教学知识点进行了梳理,提出了一种虚实结合的物联网实验教学平台建设方案。提出的实验平台能够满足基础实验、工程实训、创新创客、科研辅助及行业应用等需求。

大学生创新性实验计划项目的实施情况、影响因素及对策研究

为了解大学生创新性实验计划项目的实施情况及存在的问题,以昆明医科大学第二附属医院2020年获资助的大学生创新性实验计划项目为研究对象进行问卷调查,从简况、选题及研究内容的确定、项目投入人员数对比、教师的指导情况和结题通过情况5个维度进行调查,分析影响实施的因素,并提出相应的对策。

城市地下工程课程试验教学改革与创新

根据工程专业育人特点,进行育人、育才、知识、能力相统一的目标设定,在研究型本科教育理念为先导的教育教学体系基础上,运用以PBL项目教学为引导的CDIO教学模式,将社会主义核心价值观、开拓创新、安全第一、沟通协作等思政元素与专业知识教学相结合,创新改革北京市精品课程城市地下工程课程试验内容。经实践证明,学生的试验能力与协作水平有效提高,正确的价值观、世界观得以塑造,为今后土木相关专业课程试验思政实践教学提供思路。

颗粒表面Zeta电位测量实验项目改革

在传统的Zeta电位测量实验项目的基础上,通过引入多种电解质、分散剂和沉降实验,对实验内容进行扩充,使学生能全面探索Zeta电位的影响因素,深化理论知识。同时,结合教学视频,使学习过程更加直观生动,显著提升了学生的学习效果和实验操作能力。这些改革不仅激发了学生的学习热情,还锻炼了他们的分析问题和解决问题的能力,取得了显著的教学成果。

参照普通体检测评项目的心理测评建档内容与技术探论

目前,我国流行的心理测评主要是心理健康测评,使用的技术主要是自陈问卷.系统的心理测评应该包括注意、感觉、知觉、记忆、思维、想象、情绪、情感、意志、气质、性格、兴趣等心理机能和个性心理的全面测评.其中注意、感觉、知觉、记忆、思维等认知能力测评,需要在心理实验室或者心理卫生院利用仪器设备进行.无论心理健康和疾病的测查,还是心理素质和能力测评,单纯运用自陈问卷方法,信度效度都不理想.学校和企业以及社区建立心理健康档案,开展心理问题、心理障碍、心理疾病筛查的同时,需要参照身体检查和体质测评,进行个体心理活动机能和人格心理差异的系统全面测评,其方法和技术包括心理实验测评、医院临床测评、问卷调查测评、课堂行为评价、考试成绩评定、团体活动评价、素质拓展评定等,是定量与定性结合评定.

基于3M-PBL-OBE的机械工程实验教学体系改革与实践

针对传统实验教学中存在以认知体验为主、缺乏连贯层次化设计和过度依赖实验报告等问题,以装备设计制造能力培养为导向,融合基于模型设计(MBD)、虚实结合的机电概念设计(MCD)、制造执行系统MES等理念方法,建立以项目式学习为驱动的层次递进式实验教学构架,改革现有专业课程实践知识体系,培养能够解决复杂工程问题的高质量机械工程人才。通过持续实践,取得了明显的成效。

基于拔尖人才培养的可视化实训平台构建研究

基于现代网络信息技术搭建的可视化实践实训平台,是一种以实际操作为学习任务,集“教学+实践技能培养+评核”多功能性新方式,是提升教学质量与教学效果的有效途径。南京医科大学药学院以药学拔尖创新人才培养为教学目标,进行以生药学课程为例的可视化实训平台体系化构建以及“贯通性”实践项目的教、培、评相结合教学探索,促进学生“三专协调”发展,强化综合技能与素质教育,调动学生主观积极能动性,提高学生创新思辨能力和拔尖人才培养效果。

面向真实应用场景的PLC实训平台构建

传统由多个单一功能模块构成的PLC实验台与真实应用场景存在较大差异,不利于学生将理论知识与实际被控对象联系起来,提高实践能力的效果有限。为此,在深度分析实践教学目标和企业对人才素质要求的基础上,提出并构建一套面向真实应用场景的PLC实训平台。该平台以制造业典型工件加工流水线为范本,在组件构成、空间布置和控制功能等方面与实际系统保持一致。平台可实现的控制功能具有结构化特点,可根据教学需要设计成难度级别不同、内容多样的实训项目,不仅可以有效激发学生的学习积极性,还有利于循序渐近地锻炼和培养学生的“分析被控对象-提出设计方案-验证实际效果”的工程思维方式和综合实践能力。

程序设计课程实验教学改革与在线学习数据分析

针对程序设计课程实验教学中,学生学习能力具有差异性,且教学活动形式单一、过程性指导与考核难落地等问题,以项目制方式整合设计6个层次的实验教学内容,建设多种信息化平台,实施递进式实验教学。对借助平台记录的任务总耗时、评测次数、代码修改行数等过程性数据进行深度分析,综合考察学生的实验学习效率与期末考试成绩之间的相关性。围绕学生个体学习效果数据的评价,为教师教学改进提供了依据,提高了实验教学的针对性。分层递进式实验教学的实施,增加了课程的外延实验学习,充分满足了不同学生的学习需求,培养了他们的程序设计和计算思维能力,为其后续专业学习打下良好基础。

“以废治废”综合性实验项目的教学改革与实践研究

开展基于“以废治废”综合性实验项目的教学改革,研究其对培养材料科学与工程专业学生专业意识与素养的有效性和独特性,并积极推行该项目在本科生专业实验中的制度建设和管理创新,总结了《“以废治废”综合性实验项目》课程在教学设计、内容建设、实验模式、方法研究、专业技能等方面教学实践,结果表明,该实验建设对培养本专业本科人才科研素养和学科交叉融合思路是一种有效的实验教学探索,对于开拓学生创新意识和促进跨学科合作的发展具有重要意义。

新农科背景下“大创”计划项目与创新人才培养探讨

在新农科建设背景下,园艺学实验教学中心通过搭建平台、提供设备及信息、开展技术与安全培训等方式来助力“大学生创新创业计划项目”的开展。从立项数量与类型、立项数量构成与学生参与度等4个方面阐述“大创”训练计划项目的实施现状,同时针对存在的问题提出搭建开放平台、规范实验操作、发挥资源优势、提供信息互享4个解决对策,以此来推动“大创”项目开展与创新人才培养。