迭代方程x(p(z)+bx(z))=h(x(z))的解析解

用优级数法给出一类迭代函数方程解析解存在的充分条件.     

面点实践教学中工艺标准化探析

在当前面点教学中,大部分教师仍处于凭经验教学阶段,各类教学品种无定量的工艺参数和明确的质量标准,不同教师做法不一,且计量手段落后,概念模糊,制品质量不稳定,造成学生学习起来难度较大;实施面点工艺标准化教学,可使学生更快更好的掌握烹饪工艺和技能,同时增强了学生的标准化意识,为传统食品的工业化生产打好基础;工艺标准化是通过对教学品种的制作工艺进行定量研究,从它的原料性状、制作工艺、营养卫生、质量标准及饮食美学等几个方面着手,确定原料质量标准、制作工艺标准和产品质量标准来实现的。     

The Relationship between Attitudes, Knowledge, and Demographic Variables of High School Teachers Regarding Food Irradiation

ABSTRACT:  The purpose of this study was to use a validated instrument to determine the attitudes and knowledge of high school teachers regarding food irradiation, and to determine the correlations among their knowledge and attitudes and certain demographic variables. Knowledge and attitudes about food irradiation were measured in selected high school family and consumer sciences teachers ( n = 121) who taught Food and Nutrition, Food Science and Technology, and/or Food Production Management and Services, via a 24-item instrument with 6 factors. Results revealed these teachers held neutral to positive attitudes about the safety of irradiated foods, their perception of the risk of foodborne illness, and learning about food irradiation, and neutral to negative perceptions of their understanding of food irradiation and their competence to teach about it. These teachers had a moderate knowledge base regarding food irradiation. Teachers' attitudes regarding the safety of food irradiation were positively correlated with their perceived understanding of food irradiation, actual knowledge of it, and competence to teach about it. Their perceived understanding of food irradiation was positively correlated with competence to teach about it, knowledge, and attitudes toward the safety of food irradiation. The only demographic variable correlated with knowledge or attitudes was teachers' previous food irradiation educational experiences. These data suggest the importance of education for family and consumer sciences teachers concerning food irradiation.     

饮食题材——杜甫草堂诗中心态之体现

杜甫在草堂创作了大量的闲适诗。缘于长期的漂泊和草堂生活的相对安定,草堂诗呈现出与其他阶段迥然不同的艺术风格,写了大量饮食方面的诗。诗中大部分是从琐碎的生活中,去细细品味人生的乐趣,暂时放下不得志的苦闷,享受当下的自足与闲适的生活,有些诗中也蕴涵忧国思乡之情。     

Translation Analysis from Functional Linguistics Perspective

As a branch of linguistics,Functional Grammar plays an important role in translation analysis.From the perspective of patterns of progression and cohesion,a text and its translation from TEM8 examination is studied as an example to get some general rules,and thus,a new approach of translation analysis is offered.     

韩国食品安全监管体系及对我国的启示

食品安全问题关系到公众身体健康,通过分析韩国食品安全监管体系,借鉴其先进理念,提出我国应当尽快健全我国的食品安全监管法律体系;厘清执行机构关系,充分发挥民间检测机构作用;与时俱进,不断加快食品安全标准更新;食品安全法规、标准国际化和建立有效公众参与途径和违规惩罚机制.     

功能词隐喻意义习得中的语境效应

隐喻是人类日常生活中必不可少的语言现象,也是语言学习(尤其是二语习得)中非常重要的一个方面。虽然已有研究表明上下文(co-text)对实词(lexical word)隐喻意义的习得有一定的作用,但关于语境效应对功能词(functional word)隐喻意义理解作用的研究却不多。该文通过理论研究,实验调查等方法就语境效应如何作用于对功能词隐喻意义的理解这一问题进行了调查。结果发现上下文中附加信息的增减,事件发生顺序的改变等因素对情态动词本体域与认识域之间的投射,并列连词对称及不对称用法,"if"的条件/让步用法等隐喻意义的理解产生影响。最后,该文为二语教师、二语学习者及语言测试机构提供了一些实践性的建议。     

一类变时滞细胞神经网络模型的指数稳定性

讨论了一类变时滞细胞神经网络模型的指数稳定性问题.通过构造新的Lyapunov泛函和利用线性矩阵不等式（LMI）技术,获得了一些保证模型的平衡点指数稳定的充分条件.     

现代汉语事务语体虚词分布研究

文章对现代汉语事务语体中虚词的分布、规律及原因作了研究。通过统计分析发现虚词中助词使用最多,其次是介词、连词,很少使用语气词。各虚词小类在使用中存在一定的差异性,这种差异性主要取决于事务语体的基本性质、基本特征。     

我国食品对外贸易对食品工业经济增长影响分析

运用协整检验结果表明中国食品进口与食品工业经济增长、中国食品出口与食品工业经济增长之间构成了长期稳定的均衡关系;运用多变量的Granger因果关系检验发现存在食品出口到食品工业经济增长的单向Granger因果关系,食品工业经济增长到食品进口增长的单向Granger因果关系,以及食品进口增长到食品出口增长的双向Granger因果关系;运用误差修正模型得出在短期内,食品进口、出口对食品工业经济增长有促进作用。