共查询到20条相似文献,搜索用时 93 毫秒
1.
2.
3.
4.
5.
基于农业供给侧结构性改革背景,运用系统基模分析法对影响茶叶区域公用品牌的因素进行了分析,发现茶叶区域共用品牌的发展存在4个成长上限基模、1个成长与投资不足基模,进而对发展与维护茶叶区域公用品牌提出相关建议。 相似文献
6.
7.
农产品区域公用品牌建设是农业品牌化的重要抓手,建设知名度高、品牌附加值高的农产品品牌是实现农业现代化的重要标志。以重庆市“巴味渝珍”农产品区域公用品牌为例,运用扎根理论对相关资料进行编码和分析,构建农产品区域公用品牌建设中政府与市场的双强模型,探究农产品区域公用品牌建设路径。研究发现:“有为政府”是区域品牌建设的基础支撑,“有效市场”是区域品牌建设的必要条件,政府与市场协同发力是区域品牌建设的关键所在。 相似文献
8.
加强区域公用品牌建设,对推动企业增效、农民增收,促进区域经济和产业的发展具有战略意义。通过调研分析苍溪县区域公用品牌建设现状和存在的问题,结合相关政策的供给和配套、资源的统筹和整合等问题,提出了建设苍溪猕猴桃区域公用品牌的有效对策。 相似文献
9.
本文在研究和借鉴区域农产品公用品牌的形成机理研究的基础上,分析我国区域农产品公
用品牌建设的基本现状及普遍存在的问题,基于区块链技术开展区域农产品公用品牌建设的可行性
分析,最后提出基于区块链的区域农产品公用品牌构建的对策。 相似文献
10.
11.
温度不仅与环境中的湿度协同起来对鸡生长发育起到重要作用,而且还由鸡舍的通风条件来控制,做好温度调节工作对鸡群的生长发育非常有利.温度作为动物生存的重要条件,与动物的生理活动、消化代谢、生殖行为等息息相关.鸡作为被毛动物,其对温热环境的反应更加敏感.下丘脑作为中枢神经系统,可以接受外界环境的信号,控制机体做出适当的反应,... 相似文献
12.
13.
14.
15.
16.
17.
Hopfield JJ 《Science (New York, N.Y.)》1966,151(3716):1380-1381
A theoretical model to explain the negative polarization of moonlight at small lunar phase angles is developed. The model is based on the polarization of light in the diffraction region bordering the geometric shadow of an opaque dielectric obstacle. 相似文献
18.
19.
Mechanism of delayed reactions 总被引:1,自引:0,他引:1
S Leskowitz 《Science (New York, N.Y.)》1967,155(760):350-352
Arsanilic acid conjugates of polymers of L-typrosine, glutamic acid, and alanine are immunogenic and can elicit hapten-specific, delayed-hypersensitivity reactions in sensitized guinea pigs. Conjugates of the D-amino acid polymers are neither immunogenic nor capable of eliciting delayed reactions. Mixtures of small amounts of conjugates capable of eliciting a delayed reaction with larger amounts of D-amino acid polymer conjugates produce only small delayed reactions. I suggest that the delayed reaction is an active response requiring the continued participation of immunogenic material in sensitized animals; it is not the reaction of preformed antibody-like material with the antigenic determinant. 相似文献
20.
Mechanism of actin-based motility 总被引:1,自引:0,他引:1
Spatially controlled polymerization of actin is at the origin of cell motility and is responsible for the formation of cellular protrusions like lamellipodia. The pathogens Listeria monocytogenes and Shigella flexneri, which undergo actin-based propulsion, are acknowledged models of the leading edge of lamellipodia. Actin-based motility of the bacteria or of functionalized microspheres can be reconstituted in vitro from only five pure proteins. Movement results from the regulated site-directed treadmilling of actin filaments, consistent with observations of actin dynamics in living motile cells and with the biochemical properties of the components of the synthetic motility medium. 相似文献