关于多项式鲁棒稳定性的几个新结果

本文基于儒歇定理，给出了系数多线性地依赖于不确定参数的多项式鲁棒稳定性的充分条件。这些判据具有简单的形式，十分容易检验。在某些特殊情况下，这些条件甚至还是必要的。本文的结论为具有不确定系数的多项式的鲁棒稳定性提供了一些新的有效的判据。     

浅析网络环境下农业科技图书馆的联合服务

在网络环境下,开展农业科技图书馆的联合服务很有必要,但存在管理模式落后,材料不规范、技术滞后、人员素质低等问题.对策是一重要新观念,变被动服务为主动服务;二要建设信息站点,提高Web的访问率,提供反馈窗口.注重资源库建设,提高工作效率;三要正确处理好联合开发利用与保护知识产权的关系.     

太湖地区不同土壤-森林生态系统中林木生长对微量元素的反应及反馈效应

Vector analysis technique and ecological sequential comparison methods were adopted to study tree growth response to the micronutrients,B,Mo,Cu,Zn,Fe,and Mn,in soils derived from various parent materials in the forest area of Tailhu Lake region in southeast China,The results showed that the dry weight of individual current-year needle of Chinese fir(Cunninghamia lanceolata) grown on the soil derived from granite parent rock was increased by 8% and 13% in comparison with that grown on the soils derived from sandstone and ash-tuff parent rock,respectively.And such dry weight of loblolly pine (Pinus taeda) grown on the soil derived from sandstone parent rock was increased by 21% in comparison with that on the soil derived from ash-tuff parent rock.One of the reasons for those results was that micronutrients content in the soil derived from ash-tuff parent rock were not sufficient to meet the requirement of the growth of Chinese fir and loblolly pine ,i.e.,micronutrients in soil were deficient and/or induced defiient.The amounts of Cu,Zn,Fe,and Mn uptake by Chinses fir and loblolly pine were in agreement with the contents of available micronutrients in soil respectively,except for B and Mo.Meanwhile,there might exist and “antagonism“ between the uptake of B versus Mo by trees,although more studies are needed to confirm it .Regression analysis indicated that amount of a soil available micronutrient was correlated to the type of parent material and its total amount in the forest floor, except for B.The F test identified that the correlation of each equation reached the significant level to different extents,respectively,The t test confirmed that amount of available forms was mainly depended on the type of parent material for Mo,Cu,Zn and Mn but on the forest floor for ,Fe,There was a feedback effect of forest stand on the amount of soil available micronutrients.The ability of accumulating available micronutrients in soil was better by the sawtooth oak(Quercus acutissima) stand than by the Chinese fir stand (except for B).The ability of accumulating available Zn,Fe,Mn and Mo in soil was better by the Chinese fir stand than by the loblolly pine stand ,while as for available B and Cu,by the latter was better than by the former,When discussing the efect of forest stand on the amount of soil available micronutrients,not only the amount of micronutrient in the forest floor and the parent materials but also the amount of micronutrient taken up by current-year needles have to be considered.     

电动机智能软起动的应用

本文针对农用大功率异步电动机通常降低启动电流冲击的措施，提出新的智能软起动概念。进而对其技术性能及功能进行综述。并讨论了应用中的有关问题。旨在进一步推动此新起动方式在农业电气化中的应用。     

高校教学绩效考核反馈环节的问题与对策

“反馈”是教学绩效考核的重要环节之一,是螺旋式提升高等院校教学绩效的关键所在。但是,通过对部分浙江高校的问卷调查发现,目前,高校管理者对反馈环节的重视不够,教师获得的反馈与他们对反馈的期望之间有较大的差距。这其中既有管理者理念、能力和立场的原因,也有学校管理文化方面的原因。应从文化、制度、反馈方式和内容、反馈效果评估等方面提升教学绩效考核的反馈效果。     

分层法在卷烟质量改进方面的应用

运用分层法及直方图对消费者反馈的质量问题进行了统计分析,对卷烟生产企业在寻求质量改进中找到了一些原因和解决方法。结果表明：（1）卷烟品牌的价位影响消费者对卷烟包装质量的关注程度,越是高端品牌,顾客关注度越高,反馈越高;反之,低端品牌顾客质量关注度越低。（2）卷烟质量缺陷主要集中在条装和盒装,可以通过技术手段加大设备投入进行质量控制。     

向我们养蜂业的代言人致敬

《蜜蜂杂志》在2011年第11、12期连续刊登了宋心仿代表为维护养蜂人权益而提出的"十一届全国人大四次会议第9315号建议"的答复和反馈意见及二次答复的复印件。笔者深深地感到:宋代表是一位办事实事求是、严格认真、仗义执言、刚直不阿的     

关于对（2089）号建议答复的反馈意见

我提出的《关于废止“蜂蜜制品”类产品名称及相关规定的建议》 （2089号）由国家质检总局答复,对该答复表示不满意.主要是当前的“蜂蜜制品”已堂而皇之成为蜂蜜造假的主原因,而作为始作俑者及主管部门,却不以为然,以“为无效规范文件”为由撒手不管,使之任其混乱下去,这是极端的不负责任行为!     

交流园地

近来。编辑部收到一些读者朋友的反馈,他们提到在生产实践中遇到了一些自己无法解决的问题,希望《中国猪业》杂志给予帮助。作为养殖行业的专业媒体,我们很乐于为大家提供咨询解答的服务。鉴于此,编辑部决定从2013年第1期开始,开辟《交流园地》专栏,收集整理读者朋友们反馈的问题,并向相关的行业专家、学者请教,以期他们的解答能为养殖一线的朋友提供帮助。同时,我刊也欢迎各位养殖朋友及时向我们反馈生产实践中遇到的问题。我们将会以满腔热情提供最真诚的服务,共同为养殖业的健康发展尽一份力,献一份爱。