生物活性纳米微囊在食品中的应用

本文简要分析生物分子纳米技术在食品领域的应用研究及其进展,包括纳米微囊的合成方法,利用纳米微囊技术增强生物活性物质的生物利用度、稳定性和控释效率等,以为生物活性纳米微囊在食品领域的应用和研究水平的提高奠定坚实的基础。     

纳米颗粒在电化学生物传感器中的应用研究

纳米技术介入生物传感器的研究领域具有非常重要的意义。简要介绍了电化学生物传感器的工作原理,着重讨论了纳米颗粒在电化学生物传感器中的研究进展,并论述了这一领域的发展趋势。     

纳米颗粒在电化学生物传感器中的应用研究

纳米技术介入生物传感器的研究领域具有非常重要的意义。简要介绍了电化学生物传感器的工作原理,着重讨论了纳米颗粒在电化学生物传感器中的研究进展,并论述了这一领域的发展趋势。     

纳米也“再生”

作为高新科技的纳米技术在过去几年中不断向不同的商业领域渗透，至今已成功运用于包括医药、化学及生物检测、制造、光学以及国防等在内的多个行业。美国权威机构预测，2010年，纳米技术市场估计将达14400亿美元。仅在中国，以纳米材料和纳米技术注册的公司就有近100个，建立了10多条纳米材料和纳米技术的生产线。     

纳米技术与社会发展意义的辩证思考

从辩证视角分析,纳米技术被誉为＂21世纪三大科技＂之一,它在生物、医药、信息技术、材料等领域的应用将极大地推动人类社会的进步。但同时也应看到纳米材料和纳米技术对人类健康、环境、社会安全的威胁。由此带来的负面效应应受到人类理性的规约,主要包括纳米技术发展中的科技理性,建立纳米技术标准化体系,制定法律引导纳米技术的正确发展方向等方面。人类应该用战略眼光俯瞰纳米技术的发展,在纳米技术的实际成果达到足以制造更加危险的未来微型战争和其它危害之前,对它实施有效的人性和社会的规约,使它趋利避害,沿着健康方向发展。     

论纳米技术在新型建筑材料中的应用

纳米技术作为一门新兴的技术,在多个领域具有非常重要的应用,尤其是极大地推动了新型建材的发展,介绍了纳米技术在新型建筑涂料、复合水泥、自洁玻璃、陶瓷、防护材料等方面的应用,通过论述可知,纳米材料在新型建材领域具有很好的发展应用前景。     

创新环境下的海洋装备发展前景

全球科技创新方向 当前,世界新一轮科技革命和产业变革蓄势待发,能够影响未来的颠覆性技术和前沿技术层出不穷,全球很多国家机构开展了面向未来的技术创新预测活动,提出未来技术的发展方向.通过对不同国家技术创新预测结果的整理,可以看出未来全球主要技术创新方向如下: ●电子信息技术领域:机器人、人工智能、移动互联网、大数据、光电子传输、自动驾驶; ●生物与新医药技术领域:合成生物技术、精准医疗、再生医学、大脑计划; ●新材料技术领域:纳米技术、3D打印; ●新能源与节能技术领域:可再生能源、储能技术.     

碳纳米管在电化学生物传感器中的应用

碳纳米管作为一种新型的纳米材料,将其用于修饰电极,可以降低化学物质氧化还原反应的过电位,改善生物分子氧化还原可逆性,其大比表面积有利于酶的固定化,还能促进酶活性中心与电极表面的电子传递。碳纳米管的这些特性对于提高生物检测的灵敏度和稳定性具有重大意义,为生物传感器领域开辟了广阔的前景。     

中国纳米产业淘金展望

SPM的先驱者,1986年诺贝尔奖获得者之一的罗瑞尔博士曾说:70年代重视微米的国家如今都成为发达国家,现在重视纳米技术的国家很可能成为下一世纪的先进国家。 作为一个新兴的行业,目前纳米产业各种经过纳米技术改性或修饰的传统材料、传统工艺在传统市场中不仅占据技术比较优势,而且占据经济比较优势和市场先机。目前纳米技术在我国已开始应用于新材料、计算机和信息系统、能源和环保、医疗和卫生、生物和农业等领域。随之而诞生的纳米产业已呈现出了喷薄朝阳之势,前景非常光明。 相信有远见的企业家一定会把目光盯在纳米产业及其带来的巨大商机上,并从中淘得属于自己的那一桶金。     

科技部部署纳米材料研究项目

为落实国家中长期科技发展规划纲要的部署，2008年科技部将继续组织实施纳米研究、蛋白质研究、量子调控研究、发育与生殖研究等4个重大科学研究计划，部署一批重大项目。其中纳米研究主要侧重于纳米技术在环境保护、能源、生物等方面的应用。纳米材料与纳米技术在环境保护领域中的应用研究，将重点发展应用于空气、水和土壤污染及有害废弃物的检测与治理的纳米技术等。     

TS-790减阻剂聚合物的低温粉碎工艺研究

TS-790减阻剂的中试产物聚α-烯烃为黏弹性固体,通过研究确立了低温粉碎聚α-烯烃的工艺条件,并在试验中对低温粉碎各节点的温度控制、粉碎初始粒度、聚合物与无机分散剂配比、粉碎机负荷等低温粉碎工艺参数进行了研究,确立了聚α-烯烃的粉碎工艺,得到了一定粒径分布的稳定的聚理一烯烃粉剂。     

Explaining Consumer Reactions to Corporate Social Responsibility: The Role of Gratitude and Altruistic Values

Although a lot of research establishes consumer reactions to corporate social responsibility (CSR), little is known about the theoretical mechanisms for these reactions. We conduct a field experiment with adult consumers to test the hypothesis that the effects of perceived CSR on consumer reactions are mediated by felt gratitude and moderated by the magnitude of altruistic values held by consumers. Two classes of consumer reactions are considered: intentions to (1) say positive things about the company, and (2) participate in advocacy actions benefiting the company.     

Personal and Historical Nostalgia—A Comparison of Common Emotions

ABSTRACT

This research uses an experimental research design to examine differences in the emotional responses of 806 respondents experiencing specifically personal or historical nostalgic reactions to advertising appeals. Changes in intensity of five emotions common to both reactions are examined. Upbeat/elation, loss/regret, and warm/tender emotions are significantly heightened under the personal compared with the historical nostalgic response. Negative/irritation and serenity/calm emotions are not significantly different. These results highlight the need to examine nostalgia as two separate reactions and provide insights useful to practitioners regarding emotional reactions to each form. It also suggests the need for future research into personal and historical nostalgia's comparable influences on other responses.     

人力资源绩效考核分析

随着经济的发展和企业竞争的加剧,人力资源绩效考核作为人力资源管理的中心环节,正面临着新的挑战。为全面分析人力资源绩效考核的整个过程,构建了考核体系并确定了各指标的权重,并对考核数据进行综合分析。在确定各考核指标权重时,引入了群决策方法和聚类分析原理;在综合分析考核数据时,运用模糊评判方法,通过实际数据举例并与定性分析相结合,得到了较好的结果,从而论证了模糊综合评判方法的可行性,为企业人力资源管理决策提供了依据。     

粗糙表面电磁散射系数数字方法分析与比较

回顾了随机粗糙表面电磁散射特性计算方法的特点,分析对比了各类积分方程法和微分方程法的核心算法,着重讨论了矩阵分裂算法的计算效率,以及时域有限差分法求解色散粗糙面宽带散射特性的有关问题,指出了粗糙表面散射系数的计算和选择方法。     

Ethical Considerations and Change Recipients’ Reactions: ‘It’s Not All About Me’

An implicit assumption in most works on change recipient reactions is that employees are self-centred and driven by a utilitarian perspective. According to large parts of the organizational change literature, employees’ reactions to organizational change are mainly driven by observations around the question ‘what will happen to me?’ We analysed change recipients’ reactions to 26 large-scale planned change projects in a policing context on the basis of 23 in-depth interviews. Our data show that change recipients drew on observations with three foci (me, colleagues and organization) to assess change, making sense of change as multidimensional and mostly ambivalent in nature. In their assessment of organizational change, recipients care not only about their own personal outcomes, but go beyond self-interested concerns to show a genuine interest in the impact of change on their colleagues and organization. Meaningful engagement of employees in organizational change processes requires recognizing that reactions are not simply ‘all about me’. We add to the organizational change literature by introducing a behavioural ethics perspective on change recipients’ reactions highlighting an ethical orientation where moral motives that trigger change reactions get more attention than is common in the change management literature. Beyond the specifics of our study, we argue that the genuine concern of change recipients for the wellbeing of others, and the impact of the organizations’ activities on internal and external stakeholders, needs to be considered more systematically in research on organizational change.     

On the shape of the single-country and world commodity-substitution and factor-substitution surfaces under conditions of joint production

In recent years trade theorists have completed the task of specifying necessary and sufficient conditions for the single-country and world transformation surfaces to be locally of any assigned degree of flatness. However those conditions are relevant only if the technology is of the no-joint-products type. In the present note we derive necessary and sufficient conditions for the single-country and world transformation surfaces to be of any assigned degree of flatness under conditions of joint production; and we also obtain, as a by-product, necessary and sufficient conditions for the single-country and world equal-product surfaces to be of any assigned degree of flatness.     

The Influence of Negative Information on Purchase Behaviour

This was a longitudinal study that examined consumer reactions to hazardous product incidents. The purpose of this study was to examine consumer responses to product safety hazard incidents over time, and to identify demographic groups that are either most resistant or most affected by hazard incidents. The results suggest that in the first year after an incident, the crisis managers had only limited control over adverse effects to negative information. In the longer term, consumer reactions were still rather uniform and severe in most of the cases. The effects are examined in the context of key market segments for each product, and with regard to company responses to the incidents. Managers should expect strong negative reactions from some demographic subgroups over time and are advised to closely monitor the impact of hazardous incidents on their target markets.     

进口含贵金属物料的表征和属性鉴别

采用X射线荧光光谱仪、X射线衍射光谱仪及标准方法等分析技术手段,对进口4种含贵金属物料样品进行表征,结果为:样品1外观为潮湿的黑色粉末,夹杂有金属光泽的小颗粒,主要由SiO₂(石英)和CaCO₃(方解石)组成,Au量为21.0 g/t,Ag量为160.0 g/t;样品2外观为灰色圆柱状颗粒,夹杂少量白色圆球状颗粒,主要由Al₂O₃和Ag组成;样品3外观为土黄色粉末夹杂大小不等结团状,水分含量为24.6%;样品4外观为灰色圆球状颗粒,主要由Al₂O₃组成。将样品的外观、组成等特征,与报验提供的样品来源、含贵金属物料、含贵金属产品及相关文献等进行比对,依据《中华人民共和国固体废物污染环境防治法》与《固体废物鉴别标准通则》GB 34330-2017判定:样品1来源为石英脉型金矿或尾矿经富集的含金矿物,其金含量达到金精矿品位要求,不属于固体废物;样品2为含银废催化剂经高温处理的产物,样品3为湿法冶炼提取锌或其他有价金属后的浸出渣,样品4为含钯废催化剂经高温处理的产物,样品2、样品3和样品4属于目前我国禁止进口的固体废物。