首页 | 官方网站   微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1532篇
  免费   55篇
  国内免费   9篇
工业技术   1596篇
  2023年   8篇
  2021年   16篇
  2020年   10篇
  2019年   13篇
  2018年   19篇
  2017年   25篇
  2016年   25篇
  2015年   21篇
  2014年   37篇
  2013年   87篇
  2012年   56篇
  2011年   96篇
  2010年   63篇
  2009年   70篇
  2008年   87篇
  2007年   62篇
  2006年   70篇
  2005年   48篇
  2004年   62篇
  2003年   51篇
  2002年   68篇
  2001年   32篇
  2000年   30篇
  1999年   29篇
  1998年   27篇
  1997年   18篇
  1996年   21篇
  1995年   23篇
  1994年   26篇
  1993年   23篇
  1992年   23篇
  1991年   16篇
  1990年   17篇
  1989年   23篇
  1988年   20篇
  1987年   16篇
  1986年   15篇
  1985年   30篇
  1984年   13篇
  1983年   22篇
  1982年   14篇
  1981年   13篇
  1980年   19篇
  1979年   18篇
  1978年   15篇
  1976年   16篇
  1975年   21篇
  1974年   10篇
  1971年   7篇
  1966年   7篇
排序方式: 共有1596条查询结果,搜索用时 15 毫秒
1.
This study aimed to develop a new method for detoxification of milk from aflatoxin M1 (AFM1) by using Lactobacillus rhamnosus GG biofilm. After inoculation of milk contaminated with AFM1 into L. rhamnosus GG biofilm, the unbound AFM1 was extracted and quantified by HPLC. The stability of the formed AFM1/biofilm complex using different AFM1 contamination levels of milk was also studied. We found that the percentages of bound AFM1 by L. rhamnosus GG biofilm reached up to 60.74%. While no significant difference in milk proteins content was observed after AFM1 binding, some changes in total dry matter and fat content were noticed.  相似文献   
2.
3.
4.
5.
6.
7.
Polymer Bulletin - Preparation of associating multiblock copolymer electrolytes mediated by radical addition–fragmentation chain transfer (RAFT) technique has been evaluated and reported in...  相似文献   
8.
International Journal on Software Tools for Technology Transfer - Programmable Logic Controllers are industrial digital computers used as automation controllers in manufacturing processes. The...  相似文献   
9.
Construction and demolition waste (CDW) are the largest waste products in the world today and competes as a viable recycled additive material in place of natural aggregates. Due to the increase in compressive strength of different mix proportions of CDW, it is also considered for reuse in concrete and subbase construction. This study shows the effect of CDW in expansive soil stabilization. The chemical and mechanical properties of these materials have shown that they are capable of developing compressive strength properties for replacement of cement with significant reduction in carbon emission. The inherent compositional properties of recycled CDW compared in this review suggests that CDW have good filler properties in highly expansive soils. Mixtures of crushed brick and recycled aggregates characterised based on chemical properties of different replacement ratios suggests that CDW of good-quality aggregates reduces swell potential of expansive soils and increased mechanical strength in pavement construction.  相似文献   
10.
The concept of ‘terroir’ has roots steeped in French history of wine and evocative stories of the land. Today terroir is important as a quality marker in brand management for upmarket wines. French wines have benefited from their historical connotation with terroir but other wine growing countries have also adopted the term to mean characteristics in wine attributable to place of origin. However there is no universally accepted definition of terroir except to say it refers to a particular place. This paper addresses this ambiguity by seeking the practice-based views of three experienced non-French winemakers. This reveals a social dimension to terroir that in various degrees supports and extends both the technical/scientific progress and brand value for premium wines in both Old and New World regions. This article contributes to the growing body of research that seeks to understand the practicality of terroir as a marketing and brand value indicator.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号