关于高职国贸专业进出口业务仿真操作的思路

进出口贸易实验室仿真操作，能将理论教学和实践教学有机结合，使学生更快地学会进出口业务的实际做法及技巧。搞好仿真操作实践教学，必须具备一定的软件环境和硬件设施，且要根据高职国贸专业的特点，参照国际贸易的通用做法，对整个进出口业务流程进行模拟演练，突出一个“真”字。     

模拟退火算法在模糊模式识别中的应用研究

本文首先对模糊C-均值聚类作了简要分析和评论，在此基础上将模拟退火机制引入其中，以克服模糊C-均值聚类的局部性和对初始聚类中心的敏感性；然后，采用了基于贴近度和择近原则的模糊识别方法，文中分析了格贴近度的不足之处，并对之进行了改进；最后，详细设计了上述各算法。仿真结果说明，该方法在识别速度和准确率方面都达到了令人满意的效果，为种子的在线检测提供了一种新思路，也拓展了模糊理论的应用范围。     

组合优化中启发式算法的研究分析

在组合优化的实际问题求解中，背包问题，TSM问题等NP(Non—deterministic Polynomial)问题在多项式时间内无法得到最优解，要解决此类问题，就必须借助于启发式算法；简单介绍了计算复杂性概念，列举了几种常用的启发式算法，并给出算法的自然语言描述。     

基于模拟退火的神经网络预测模型

在分析了传统神经网络预测模型的基础上，提出用模拟退火算法代替局部梯度下降法修正网络权值，从而避免了人工神经网络容易陷入局部极小的缺陷。经实例证实，该方法能有效地提高预测的精度。     

Mathematical modeling of salt-gradient ion-exchange simulated moving bed chromatography for protein separations

The salt-gradient operation mode used in ion-exchange simulated moving bed chromatography (SMBC) can improve the efficiency of protein separations. A detailed model that takes into account any kind of adsorption/ion-exchange equilibrium, salt gradient, size exclusion, mass transfer resistance, and port periodic switching mechanism, was developed to simulate the complex dynamics. The model predictions were verified by the experimental data on upward and downward gradients for protein separations reported in the literature. All design and operating parameters (number, configuration, length and diameter of columns, particle size, switching period, flow rates of feed, raffinate, desorbent and extract, protein concentrations in feed, different salt concentrations in desorbent and feed) can be chosen correctly by numerical simulation. This model can facilitate the design, operation, optimization, control and scale-up of salt-gradient ion-exchange SMBC for protein separations.     

《社会调查方法与实务》课程教学改革探索——基于宜春学院公共管理专业课程教学

《社会调查方法与实务》是一门既有较深的理论性,又有很强的实践性的课程。但是囿于教学条件、课程设计等因素,课程教学主要侧重于理论教学,在实践教学方面相对弱化,影响了学生综合素质的拓展。因此应在重新审视《社会调查方法与实务》教学模式的基础上进行教学改革创新,在理论讲授、案例分析基础上强化课堂讨论和模拟调查情景等教学方式,同时在课程考核上应用过程性评价方式,将考核细化到每一个教学环节。     

Carbohydrate ingestion improves endurance performance during a 1h simulated cycling time trial

This study examined the effect of carbohydrate ingestion on metabolic and performance-related responses during and after a simulated 1h cycling time trial. Eight trained male cyclists (VO 2 peak = 66.5ml kg -1 min -1 ) rode their own bicycles mounted on a windload simulator to imitate real riding conditions. At a self-selected maximal pace, the cyclists performed two 1h rides (separated by 7 days) and were fed either an 8% carbohydrate or placebo solution. The beverages were administered 25 min before (4.5ml kg -1 ) and at the end (4.5ml kg -1 ) of the ride. With carbohydrate feeding, plasma glucose tended (P = 0.21) to rise before the time trial. Compared with rest, the plasma glucose concentration decreased significantly (P < 0.05) at the end of both rides, with no statistically significant difference being observed between treatments. Thereafter, plasma glucose increased significantly (P < 0.05) at 15 and 30 min into recovery, and was significantly higher at 30 min during the carbohydrate trial compared with the placebo trial. No significant changes in plasma free fatty acids were observed during the ride. However, a significant increase (P < 0.05) in free fatty acids was found at 15 and 30 min into recovery, with no difference between trials. Mean power output was significantly (P < 0.05) greater during the carbohydrate compared with the placebo trial (mean - S.E.: 277-3 and 269-3W, respectively). The greater distance covered in the carbohydrate compared with the placebo trial (41.5-1.06 and 41.0–1.06km, respectively; P < 0.05) was equivalent to a 44s improvement. We conclude that pre-exercise carbohydrate ingestion significantly increases endurance performance in trained cyclists during a 1h simulated time trial. Although the mechanism for this enhancement in performance with carbohydrate ingestion cannot be surmised from the present results, it could be related to a higher rate of carbohydrate oxidation, or to favourable effects of carbohydrate ingestion on the central component of fatigue.     

The Utility of Simulated Clients in Macro-Practice Courses

Over the past several decades, the use of simulated or standardized clients has been an important area of pedagogy for social work education in training students to work with individuals, families, and groups in practice settings, often in preparation for a practicum placement. Little in the extant literature, however, has focused on the possible utilization of this pedagogical tool in preparing students for engagement at the macro level, such as community development, organizing, policy practice, or other types of involvement with large systems. This article considers the possible strengths and benefits of simulated clients within macro-level courses—especially relative to experiential activities that don’t involve simulated clients—as well as important logistical considerations related to such use.     

远程模拟实验的探索与研究

在基于网络的远程教育中,学生所处的学习空间与已熟悉的真实学习环境有很大不同,它是一种计算机和网络技术营造出的虚拟学习环境,而为了减少远程教育中时间和空间分离对学习带来的困难,这种虚拟学习环境需要更逼真,一定程度上作为真实学习环境的延伸和拓展。对于远程教育中工科专业课程的学习,因其有不可缺少的实践环节要求,所以,需要创建一种利于学生进行工科实验的虚拟环境,而且这种虚拟学习空间必须要符合工科专业课程线性和逻辑性的特点。该文从工科专业课程的实验课程作为切入点,按照虚拟学习环境的模式开发了远程模拟实验系统,依据引导式学习理论进行设计,并且遵循课程本身的科学要求,使学生达到工科专业课程的教学要求。     

《模拟导游》课程教学内容及教学方法浅析

《模拟导游》课程作为导游专业的核心课程,应在理论学习的基础上,更加重视实践教学。然而,以往的教学设计多以教师为主,忽略了学生学习的自主性和积极性,针对此现状,笔者在这门课程的教学过程中积极探索更合理的教学内容与教学方法,以期更好地完成教学目标。