“新工科”背景下《物理化学实验》课程思政创新研究

在“新工科”背景下,《物理化学实验》课程思政创新研究成为高等教育的重要课题。该研究旨在将思想政治教育融入《物理化学实验》课程中,以培养学生的科学精神、团队协作能力、创新能力和勇于投身国家建设为目标。首先,通过明确课程目标,将学科知识、实验技能和思想政治教育有机结合。其次,设计具有时代特色和社会潜在应用价值的实验项目,引导学生求真务实,提升其创新能力,培养其家国情怀。在教学方法上,采用“线上 线下”和企业认知实习相结合的教学法,培养学生的创新意识和投身国家建设的决心。评价体系方面,建立多维度的综合评价体系,全面评估学生的学科知识、实验技能和思想政治教育成果。最后,通过教师培训和学生能力培养的跟踪和评估,不断优化课程,培养出具有优秀学科知识、实验技能和为国奉献的新一代工程技术人才。该研究为高校《物理化学实验》及相关实验课程的思政创新提供了理论指导和实践经验。

《物理化学实验》网络教学软件的研制

Internet和多媒体技术教学应用是解决传统教学方式局限性的有效手段。本文探讨了《物理化学实验》网络教学软件研制的必要性和可行性，概述了软件的制作工具和过程及其内容与教学应用，并结合Internet和多媒体技术的具体应用介绍了软件运用于物理化学实验教学的优势。

《物理化学实验》模拟软件的开发及应用

介绍用Authorware等工具开发的《物理化学实验》模拟软件的实现过程,并对实现中的一些主要技术作探讨。软件由电化学、热力学、动力学、胶体化学、表面化学和物质结构5个部分共15个实验组成、具有内容丰富、引人入胜、个性化强、交互性好、开放性等特点,可用于学生的自习、教师的讲课和对学生的考查之用。

《物理化学实验计算机过程管理系统》的开发与应用

用VB 开发的《物理化学实验计算机过程管理系统》,采用计算机与常用实验设备联机,管理学生实验的全过程。由于数据的客观性和封闭性,提高了对学生实验操作的要求。软件设计注重学生参与实验及数据处理过程,达到了相应的训练目的。

商丘师院教授风采

瞿鹏，男，汉族，1971年2月12日生，河南商丘市人，中共党员，东南大学生物医学工程专业工学博士，陕西师范大学分析化学专业理学硕士，2013年晋升为教授，硕士生导师。日本神户大学留学1年。瞿朋鸟教授主要承担本科生的《物理化学》、《物理化学实验》、《仪器分析》、《仪器分析实验》等课程的教学任务。系“生物分子识别与传感”河南省创新团队学术骨干，“生物分子识别与传感河南省重点实验室”学术骨干。主要从事纳米粒子的制备及生物医学传感方面的研究。

陈延民教授

陈延民教授（1964-），男，黑龙江虎林市人．1989年毕业于哈尔滨工业大学，获工学硕士，2004年8月晋升为教授。从事高校教学16年，一直坚守在教学第一线，具有丰富的教学经验，曾讲授《化工基础》、《精细化工》、《仪器分析》、《环境化学》、《物理化学实验》等多门课程，现担任化学与生命科学学院无机教研室主任，主要承担《无机化学》、《无机及分析化学》、《波谱学》、《染整概论》等教学任务，其中《无机化学》于2005年获省级精品课程立项。

Physicochemical Characterization of Water of Bir M＇Cherga Reservoir and Its Effluents

This study aims the physico-chemical characterization of surface water of the Bir M＇Cherga reservoir and its effluents which are located in Zaghouan governorate of Tunisia. It required measures in situ of physicochemical parameters and chemical analysis at laboratory of major element and nutritive salts. The results of this study revealed the presence of pollutants in the Miliane river at El Fahs area and the eutrophication of water in the Bit M＇Cherga reservoir. According to the classification of Stuyfzand and Piper, water in the wadis of Melah, Hdada, Miliane and Boudebbane respectively is brackish, salty, extremely hard, chlorinated, sulphated, calcic, and magnesic. Water in the Bir M＇Cherga reservoir is characterized by calcic facies chlorinated sulphated and sodic. Thus, the Bir M＇Cherga reservoir presents a worrying situation and a risk of qualitative degradation of its water.

Influence of Atomization Parameters in the Obtention of Mango Pulp Powder

Mango is a widely cultivated and consumed fruit in Brazil and one of the most important alternatives to take advantage of the production excess is dehydration. Therefore, this work aims at establishing better operational conditions for ＂spray-drying＂ processes, in order to obtain the powder of mango pulp by means of a rotational central compounded planning, and also at carrying out the physicochemical characterization of both the integral mango pulp and the powder obtained from the operational conditions mentioned above. Both integral mango pulp and powder were analyzed as for the following physicochemical characteristics： humidity, pH, titratable acidity, soluble solids （~Brix）, vitamin C and color--through parameters L＊, a＊, b＊ and h0, Chrome （C＊） and color difference （AEL＊a＊b＊）. The experimental planning used presented significant differences at 5% of probability, showing that the model was adjusted to the data in accordance to F test, thus being possible to determine the best process conditions. In addition, the average results of the physicochemical parameters pointed out that the pulp used was in accordance with the patterns established by the quality and identity patterns for mango pulp. Moreover, it showed that the powder obtained had good physicochemical quality.

Determination of Bed Void Fraction from Fixed Bed Breakthrough Curve

Accurate physical and chemical properties of adsorbents are required for the efficient design of fixed bed adsorbers. The bed void and particle void are significant physical properties. One of the experimentally determination technique for the bed void is a breakthrough curve method. In the present paper, experimental conditions for determining the bed void from breakthrough curve were investigated because complex conditions are required. The values of bed void were determined from theoretical elution curve at the point of c/c0 = 0.5 under the condition of negligible amount adsorbed. The bed void value determined from elution curve was clearly affected by particle void and fluid velocity, and regarded as ＂apparent＂ bed void values. For large porosity particles, it was difficult to determine the true bed void value due to the effect of penetration into macro pores. Then, the bed void fraction can be determined safely from breakthrough curve when particles possessing small particle void are used.

How toxic are gold nanoparticles？ The state-of-the-art

With the growing interest in the applications of gold nanoparticles in biotechnology and their physiological effects, possible toxicity of gold nanoparticles is becoming an increasingly important issue. A large number of studies carried out over the past few years under a variety of experimental conditions and following different protocols have produced conflicting results, leading to divergent views about the actual safety of gold nanoparticles in human applications. This work is intended to provide an overview of the most recent experimental results and thereby summarize current state-of-the-art. Rather than presenting a comprehensive review of the available literature in this field, which would be impractically broad, we have selected representative examples of both in vivo and in vitro studies, which clearly demonstrate the need for urgent and rigorous standardization of experimental protocols. Despite their significant potential, the safety of gold nanoparticles is highly controversial at this time, and important concerns have been raised that need to be properly addressed. Factors such as shape, size, surface charge, coating, and surface functionalization are expected to influence the interactions of particles with biological systems to a different extent, resulting in different outcomes and influencing the potential of gold nanoparticles for biomedical applications. Moreover, despite continuous attempts to establish a correlation between structure of the particles and their interactions with biological systems, we are still far from elucidating the toxicological profile of gold nanoparticles in an indisputable manner. This review is intended to contribute towards this goal, offering a number of suggestions on how to achieve the systematization of data on the most relevant physico-chemical parameters, which govern and control the toxicity of ~old nanot^articles at cellular and whole-organism levels.

Equations of state for aqueous solutions under mantle conditions

With unique physical and chemical properties, aqueous solutions in the mantle may play important roles for a number of geochemical and geodynamical processes. However, since experimental data available are very limited, people still know little about the aqueous solutions and their interactions with surrounding rocks and melts. From the perspective of thermodynamics, equation of state(EOS) is the key to push forward the modeling of aqueous solutions. Nevertheless, up to now accurate EOSs suitable for the mantle conditions are still in shortage. With discussions over several recognized EOSs, we summarize several ways to enhance the predictability of EOS: utilizing high quality data from molecular simulations, choosing functions with sound physical background, and improving the regression procedures for the empirical parameters. In the meantime, we find that the ion-bearing systems are still the focus of challenges in this area. New developments of experiments and computer simulations effectively deal with these challenges and in-depth understandings of aqueous solutions in the mantle are expected in the near future.

Physical and numerical modelling of the Severn Barrage

The Severn Estuary has one of the largest tidal ranges in the world and has long been the subject of consideration for tidal energy generation.Whilst plans to build a tidal barrage across the estuary have existed in various forms since the 1920s,the 1989Severn Tidal Power Group(STPG)proposal is commonly referred to as the original Severn Barrage.The UK government abandoned this ebb generation scheme as a public investment project in 2010.However,plans to build a two-way generation scheme were more recently put forward by a private consortium,namely Hafren Power.To assess the impact that a barrage would have on the hydro-environment in the estuary a number of numerical modelling studies have previously been conducted for the STPG scheme.As this design has now been superseded by the Hafren Power proposal,new studies have been conducted to investigate the impact of a two-way scheme.In this study the hydro-environmental impacts of both ebb-only and two-way schemes were assessed using physical and numerical modelling techniques.Scale model barrages were constructed and testing was carried out using a physical model of the Severn Estuary,located in the hydraulics laboratory at Cardiff University.A depth integrated numerical model,namely DIVAST,was applied to the physical model geometry and modifications were made to simulate the effects of the barrage structures.The numerical model predictions showed good agreement with the corresponding laboratory data.The results were consistent with conclusions from previous studies,relating to the ebb-only scheme.These included an increase in the minimum water levels upstream of the barrage,a reduction in the mean water levels downstream of the barrage and a general reduction in tidal velocities.For a two-way scheme changes in the tidal elevations and velocities depended on the exact operating conditions of the barrage.It was found that with no starting head the tidal regime was similar to the natural state,with little change in the elevations and a slight reduction in the mean velocities.As a starting head was introduced there was still little change in elevations downstream of the barrage,however,there was an increase in the minimum water levels upstream of the barrage,and a further reduction in the mean velocities.