全文获取类型
收费全文 | 109篇 |
免费 | 0篇 |
专业分类
化学工业 | 80篇 |
金属工艺 | 3篇 |
建筑科学 | 3篇 |
轻工业 | 5篇 |
石油天然气 | 1篇 |
无线电 | 5篇 |
一般工业技术 | 3篇 |
原子能技术 | 2篇 |
自动化技术 | 7篇 |
出版年
2022年 | 2篇 |
2019年 | 1篇 |
2014年 | 1篇 |
2013年 | 3篇 |
2012年 | 2篇 |
2011年 | 2篇 |
2010年 | 1篇 |
2009年 | 3篇 |
2008年 | 4篇 |
2007年 | 1篇 |
2006年 | 3篇 |
2004年 | 3篇 |
2003年 | 1篇 |
2002年 | 2篇 |
1999年 | 2篇 |
1982年 | 6篇 |
1981年 | 5篇 |
1980年 | 4篇 |
1979年 | 6篇 |
1978年 | 7篇 |
1977年 | 8篇 |
1976年 | 10篇 |
1975年 | 11篇 |
1974年 | 11篇 |
1973年 | 10篇 |
排序方式: 共有109条查询结果,搜索用时 0 毫秒
41.
42.
Reproductive tissue selective actions of progesterone receptors 总被引:14,自引:0,他引:14
43.
Sunčica Kocić‐Tanackov Gordana Dimić Jelena Lević Ilija Tanackov Aleksandra Tepić Biserka Vujičić Jelica Gvozdanović‐Varga 《Journal of food science》2012,77(5):M278-M284
Abstract: In the present study the effects of individual and combined essential oils (EOs) extracted from onion (Allium cepa L.) bulb and garlic (Allium sativum L.) clove on the growth of Aspergillus versicolor and sterigmatocystin (STC) production were investigated. The EOs obtained by hydrodistillation were analyzed by GC/MS. Twenty one compounds were identified in onion EO. The major components were: dimethyl‐trisulfide (16.64%), methyl‐propyl‐trisulfide (14.21%), dietil‐1,2,4‐tritiolan (3R,5S‐, 3S,5S‐ and 3R,5R‐ isomers) (13.71%), methyl‐(1‐propenyl)‐disulfide (13.14%), and methyl‐(1‐propenyl)‐trisulfide (13.02%). The major components of garlic EO were diallyl‐trisulfide (33.55%), and diallyl‐disulfide (28.05%). The mycelial growth and the STC production were recorded after 7, 14, and 21 d of the A. versicolor growth in Yeast extract sucrose (YES) broth containing different EOs concentrations. Compared to the garlic EO, the onion EO showed a stronger inhibitory effect on the A. versicolor mycelial growth and STC production. After a 21‐d incubation of fungi 0.05 and 0.11 μg/mL of onion EO and 0.11 μg/mL of garlic EO completely inhibited the A. versicolor mycelial growth and mycotoxins biosynthesis. The combination of EOs of onion (75%) and garlic (25%) had a synergistic effect on growth inhibition of A. versicolor and STC production. Practical Application: A substitution of synthetic preservatives with natural antimicrobial compounds in food safety to control fungal contamination and mycotoxin production. 相似文献
44.
45.
46.
47.
48.
49.
50.
Hristova Y Djambaski P Samuneva B Rangelova N Bogdanova S 《Journal of materials science. Materials in medicine》2008,19(2):805-811
A ternary melt-derived inorganic glass system (Igl) of composition corresponding to 62SiO2, 35Na2O, 3Al2O3 (wt.%) has been formulated and studied as a drug carrier. The [Al2O3/Na2O] ratio is less than one and the aluminium ion is a network former that retards the glass dissolution. The processing conditions
lead to a brittle, easily grinding, amorphous product. The Igl structure was proven by IR-spectroscopy, energy-dispersive
spectrometry, X-ray diffraction, scanning electron microscopy. A very important fact established is that the Igl corrosion
(dissolution) is pH-dependent. Inorganic glass system was transformed into model acetaminophen (APH) adsorbate (APH/Igla 1:1(w/w))
with mild experimental conditions and evaluated as a drug carrier. No interactions between Igl and APH during the processing
were proven. Besides, APH settles onto the glass surface as crystalline phase. A lower extent of corrosion, apparent solubility
and delayed in vitro APH release from the adsorbate in water and artificial gastric juice in comparison to the samples untreated
drug and APH/Iglm physical mixture were established. It is hypothesized that the glass decomposition products, formed into
contact with a solvent, initiate interactions with APH at the glass/solution interface. Similar behaviour of the Igl and its
drug adsorbates could be expected in gastro-intestinal tract. 相似文献