全文获取类型
收费全文 | 587篇 |
免费 | 50篇 |
国内免费 | 3篇 |
专业分类
电工技术 | 13篇 |
综合类 | 4篇 |
化学工业 | 187篇 |
金属工艺 | 13篇 |
机械仪表 | 8篇 |
建筑科学 | 15篇 |
能源动力 | 30篇 |
轻工业 | 121篇 |
水利工程 | 4篇 |
石油天然气 | 6篇 |
无线电 | 42篇 |
一般工业技术 | 114篇 |
冶金工业 | 20篇 |
原子能技术 | 4篇 |
自动化技术 | 59篇 |
出版年
2024年 | 12篇 |
2023年 | 23篇 |
2022年 | 46篇 |
2021年 | 73篇 |
2020年 | 42篇 |
2019年 | 48篇 |
2018年 | 31篇 |
2017年 | 34篇 |
2016年 | 30篇 |
2015年 | 21篇 |
2014年 | 27篇 |
2013年 | 40篇 |
2012年 | 40篇 |
2011年 | 39篇 |
2010年 | 16篇 |
2009年 | 23篇 |
2008年 | 14篇 |
2007年 | 8篇 |
2006年 | 13篇 |
2005年 | 7篇 |
2004年 | 6篇 |
2003年 | 8篇 |
2002年 | 5篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1994年 | 4篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 2篇 |
1987年 | 1篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有640条查询结果,搜索用时 15 毫秒
71.
72.
Didah Nur Faridah Sanaz Damaiyanti Dias Indrasti Anuraga Jayanegara Frendy Ahmad Afandi 《International Journal of Food Science & Technology》2022,57(4):1965-1974
Resistant starch (RS) can be generated through heat moisture treatment (HMT). The HMT was conducted by modifying starch using different ratio of moisture content, high temperature and heating time. A number of studies showed that the effects of HMT on RS contents in cereals, pulses, tubers and fruits were inconsistent. This study aimed to analyse the impact of HMT on RS level in various carbohydrate sources through a meta-analysis approach. Study selection was conducted with the PRISMA method. There were 21 relevant studies and 67 data used for meta-analysis. The database was analysed by using Hedges’ d. The results showed that there was a significant impact of HMT on RS level of cereals, especially wheat. The highest increase in RS levels for various carbohydrate sources in starch was influenced by the interaction of treatment between water content at 15 ≤ x < 25%, heating time at 0.25 < x ≤ 6 h and temperature at 120 ≤ x ≤ 130 °C. 相似文献
73.
74.
75.
Mohamad Ahmad Yusri Jamil Maslina Md Yusoff Nur Izzi Mohd Fadzil Syazwani Taha Mohd Raihan 《Clean Technologies and Environmental Policy》2022,24(3):919-930
Clean Technologies and Environmental Policy - Use of by-product materials, such as steel slag and cathode ray tube glass, as alternative recycled materials in the construction of roads, could... 相似文献
76.
77.
Nur Fadhilah Khairil Mokhtar Amalia Mohd Hashim Sahar Abbasiliasi Aisyah Zulkarnain Raja Mohd Hafidz Raja Nhari Arbakariya Ariff Shuhaimi Mustafa Raha Abdul Rahim 《International Journal of Food Science & Technology》2021,56(12):6549-6558
Listeria monocytogenes has continuously become a significant threat to consumers worldwide. The use of chemical-derived preservatives that are commonly associated with safety and nutritional issues has prompted the use of natural-based preservatives as a better alternative. Many bacterial strains including Paenibacillus polymyxa Kp10 have been reported to produce various antimicrobial proteins and compounds that are considered more natural. However, their stability in various physicochemical conditions should be examined before being applied in various types of food. In this study, the stability of four previously identified antilisterial proteins in P. polymyxa Kp10 upon exposure to several physicochemical conditions was examined. More than 80% residual antilisterial activity is conserved upon heat and proteinase K treatment. But, sensitivity to 24 h trypsin digestion has been observed. P1 and P2 proteins (histone-like DNA binding proteins HU) were sensitive to alkaline pH (pH 10-12) as compared with other proteins. More than 70% and 97% residual antilisterial activity were recovered after incubation in raw beef homogenates and simulated meat gravy model, respectively. However, the antilisterial activity of most proteins was highly compromised in chicken and salmon meat homogenates, and UHT cow milk. Inoculation of these proteins into Listeria-contaminated simulated meat gravy showed that all proteins exerted a bactericidal action against L. monocytogenes. P1 and P2 shared almost similar antilisterial activity rates, while P4 was the most potent antilisterial protein. The findings in this study could provide important preliminary data for future applications of these proteins as preservative in food products especially beef-based meat products. 相似文献
78.
Didah Nur Faridah Masayu Nur Ulfa Nuri Andarwulan 《International Journal of Food Science & Technology》2021,56(9):4730-4737
This study aimed to determine the best lipid extraction method for infant formula; therefore, it can be used as a routine analysis. The samples were some commercial infant formulas in Indonesia. The research was conducted with three steps: (i) Lipid extraction of infant formula using five lipid extraction methods; (ii) 3-monochloropropanediol esters (3-MCPDE) and glycidyl esters (GE) analysis of lipid extract from three lipid extraction methods in the first step; and (iii) 3-MCPDE and GE analysis of six commercial infant formulas using the best lipid extraction method. The results showed that lipid extraction using the Dubois method gave the best results than other lipid extraction methods. The level of 3-MCPDE and GE also had no significant difference with the addition of NaCl in the Folch method, compared with the addition of Na2SO4. The level of 3-MCPDE and GE using the Dubois method was significantly different and higher compared with the other lipid extraction methods. 3-MCPDE and GE levels of commercial infant formula were 6.62–52.84 µg kg−1 and <1.43–17.06 µg kg−1, respectively. The values obtained were still within the standard according to Commission Regulation EU 2018/290 by the European Food Safety Authority (125 µg kg−1 for 3-MCPDE (on progress) and 50 µg kg−1 for GE). 相似文献
79.
80.
Nurhanis Syafiqah Binti Mohd Nor Hamin Muhammad Yusoff Sahadan Nur Amiera Syuhada Rozman Tan Wen Nee Tong Woei Yenn Khairul Azly Zahan 《Journal of Natural Fibers》2019,16(3):404-411
Transmission of pathogenic microorganisms on textile in the hospital settings may contribute to nosocomial infection. This study was aimed to develop a natural antimicrobial finishing on textile that can prevent transmission of pathogenic microorganisms that meets American Association of Textiles Chemists and Colorists (AATCC) standard. Punica granatum L ethanolic extract was shown to have broad spectrum antimicrobial efficacy with bis(6-methylheptyl)-benzene-1,2-dicarboxylate and ethyl-pentadecanoate as the main bioactive constituents. Textile samples developed with the extract finishing exhibited excellent antimicrobial efficacy with a growth reduction of 99.9% on Hoheinstein Challenge Test. The wash durability of the finished textile was found good even after 30 washes with commercial detergent. 相似文献