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71.
Influence of the Thermal Processing on the Physico‐Chemical Properties and the Antioxidant Activity of A Solanaceae Vegetable: Eggplant 下载免费PDF全文
72.
Abdel-Basset Mohamed Hessin Abdel-Naser Abdel-Fatah Lila 《Neural computing & applications》2018,29(2):345-361
Nature-inspired metaheuristic algorithms are considered as the most effective techniques for solving various optimization problems. This paper provides a briefly review of the key features of the cuckoo-inspired metaheuristics: cuckoo search (CS) and cuckoo optimization algorithm (COA). In addition, it discusses some of their important and emerging studies, investigates their applications in several fields, and finally clarifies the differences between both algorithms so as to remove confusion between them.
相似文献73.
Tamer H Gamel Jozef P Linssen Gerrit M Alink Ahmed S Mosallem Lila A Shekib 《Journal of the science of food and agriculture》2004,84(10):1153-1158
The nutritional value of raw and popped (similar to popcorn preparation) seed proteins of two amaranth species, Amaranthus caudatus L and A cruentus L, was investigated. After popping, the true protein content in A caudatus and A cruentus decreased by 9 and 13% respectively. Among the amino acids, the loss of tyrosine due to the popping effect was the highest, followed by phenylalanine and methionine. Leucine was the first limiting amino acid in the raw samples, followed by lysine, while the reverse order was observed in the popped samples. The in vivo protein quality of raw and popped seeds was tested with male weanling rats and compared with wheat flour and casein samples. There was no difference between the in vivo digestibility of the raw and the popped seeds, although the in vitro digestibility was slightly higher for the popped samples. The protein efficiency ratio (PER) for all the amaranth seed samples was higher than that for the wheat sample, while the PER for the raw amaranth seed samples was close to that for the casein reference protein. The rat blood serum levels of total cholesterol, triglycerides and high‐density lipoprotein cholesterol for all the amaranth samples were lower than those for the reference protein, while the wheat flour sample showed the lowest values. Copyright © 2004 Society of Chemical Industry 相似文献
74.
Tamer H Gamel Jozef P Linssen Ahmed S Mesallam Ahmed A Damir Lila A Shekib 《Journal of the science of food and agriculture》2006,86(1):82-89
The effects of seed treatments, including cooking, popping, germination and flour air classification on several components of Amaranthus caudatus and A. cruentus seeds, including oil, sugars, fibre, minerals and vitamins were studied. The lipid, crude and dietary fibre, ash, and sugar contents were 71, 43, 140, 30 and 18 g kg?1 in raw A. caudatus and 85, 39, 134, 40 and 22 g kg?1 in raw A. cruentus seeds, respectively. Sucrose was the dominant sugar in the raw and thermal treated seeds of both species, while glucose and galactose were the dominant ones in the high protein and the germinated seed flours. Phosphorus, potassium, magnesium and calcium were the dominant minerals in the raw seeds of both species. Air classification increased the content of minerals by more than 35% while thermal treatments did not affect their content and germination increased the calcium and zinc contents. The ascorbic acid contents were 0.030 and 0.023 g kg?1 sample in raw A. caudatus and A. cruentus seeds, respectively. All the treatments reduced the ascorbic acid content, with a high effect for the air classification and the germinated seeds dried at 90 °C. The levels of vitamin B complex, including niacin, niacinamide, pyridoxine and riboflavin were increased in the high protein flour fraction (protein contents of these fractions of A. caudatus and A. cruentus were 263.9 g kg?1 and 246.6 g kg?1, respectively) and decreased in the thermal treated flours. Germination mostly increased the amounts of those vitamins while drying reduced their amounts. Copyright © 2005 Society of Chemical Industry 相似文献
75.
Büchert AM Gómez Lobato ME Villarreal NM Civello PM Martínez GA 《Journal of the science of food and agriculture》2011,91(2):355-361
BACKGROUND: Broccoli (Brassica oleracea L.) is a rapidly perishable vegetable crop. Several postharvest treatments have been applied in order to delay de‐greening. Since light has been shown to have an effect on pigment accumulation during development and darkness is known to induce senescence, the effect of continuous and periodic exposure to low‐intensity white light at 22 °C on postharvest senescence of broccoli heads was assayed. RESULTS: Exposure to a constant dose of 12 µmol m?2 s?1 was selected as the most suitable treatment and was employed for subsequent experiments. During the course of the treatments, hue and L* values as well as chlorophyll content and visual observation of florets indicated an evident delay in yellowing in treated samples compared with controls. No statistically significant differences in total protein content were found, but soluble protein content was higher in treated samples. Total and reducing sugar as well as starch levels decreased during postharvest senescence, with lower values in control samples. CONCLUSION: The results of this study indicate that storage under continuous low‐intensity light is an efficient and low‐cost treatment that delays postharvest senescence while maintaining the quality of harvested broccoli florets. Copyright © 2010 Society of Chemical Industry 相似文献
76.
Yannis Chan Hin-Yeung Cheung Inge Goudsmit Vincent Kersten Chiaju Lin Kevin Mak Jim Dodson Alasdair Graham Vivien Liu Kai Sun Luk Slobodan Radoman Roberto Requejo Saul Smeding Elaine Tsui Viviano Villarreal Casey Wang Leonie Wenz 《城市环境设计》2014,(6):54-59
正为什么过去百年间最令人兴奋的剧场盛事总是发生在正规场所之外?建筑如何才能超越自身卑微的命运,摆脱那种限制各种可能的宿命?近年来,世界各地的演艺中心数目渐增,但不知何故,这些演艺中心似乎达成一种共识,呈现出雷同的空间组合:一座约2 000席的大型演艺厅和一个1 500席的中型剧院,再加上一个黑盒子剧场。标志性的外形掩饰以典型19世纪做法为基础的 相似文献
77.
Batch and continuous solvent extraction methods were evaluated, using an alcoholic model system, to select the best alternative for the isolation of volatile aroma compounds from distilled alcoholic beverages. Recoveries using pentane, pentane-diethyl ether (2:1) and dichloromethane were compared. Pentane extraction produced the best results, particularly by a continuous procedure for 6 h. 相似文献
78.
O Brawman-Mintzer RB Lydiard J Bradwejn G Villarreal R Knapp N Emmanuel MR Ware Q He JC Ballenger 《Canadian Metallurgical Quarterly》1997,154(5):700-702
OBJECTIVE: The anxiogenic and panicogenic effects of peripheral administration of the cholecystokinin-B receptor agonist pentagastrin and placebo were evaluated in patients with generalized anxiety disorder and normal comparison subjects. METHODS: Seven patients with generalized anxiety disorder and seven age- and sex-matched normal subjects received an intravenous bolus of placebo and pentagastrin. RESULTS: Panic attacks occurred in five patients with generalized anxiety disorder (71%) and in one normal subject (14%). Patients with generalized anxiety disorder were more likely to report more nonpanic anxiety than were normal subjects. CONCLUSIONS: Patients with generalized anxiety disorder appear to exhibit greater subjective sensitivity to pentagastrin than do normal subjects. 相似文献
79.
The behaviour of a fibreglass plate, subjected to a simulated hydraulic pressure and supported by a steel frame along the
edges through a neoprene gasket, is investigated. The plate is analyzed theoretically as an orthotropic continuum using a
direct variational technique in accordance with the Rayleigh-Ritz method. The load-deformation behaviour and the mode of failure
is examined experimentally. Theoretical and experimental results are correlated empirically through Poisson’s ratio.
Résumé On a étudié le comportement d’une plaque renforcée de fibre de verre soumise à une simulation de pression hydraulique et appuyée au bord sur un cadre d’acier par l’intermédiaire d’une garniture de néoprène. On a procédé à une étude théorique de la plaque en tant que milieu continu orthotrope, à l’aide d’une méthode variationnelle directe en accord avec la méthode Rayleigh-Ritz. On a aussi procédé à l’étude expérimentale du comportement charge-déformation et du mode de rupture. Une corrélation des résultats tant théorique qu’expérimentale a été établie empiriquement en utilisant le coefficient de Poisson.相似文献
80.
Pentón D Pérez-Barzaga V Díaz I Reytor ML Campos J Fando R Calvo L Cilli EM Morera V Castellanos-Serra LR Pazos F Lanio ME Alvarez C Pons T Tejuca M 《Protein engineering, design & selection : PEDS》2011,24(6):485-493
The use of pore-forming toxins from sea anemones (actinoporins) in the construction of immunotoxins (ITs) against tumour cells is an alternative for cancer therapy. However, the main disadvantage of actinoporin-based ITs obtained so far has been the poor cellular specificity associated with the toxin's ability to bind and exert its activity in almost any cell membrane. Our final goal is the construction of tumour proteinase-activated ITs using a cysteine mutant at the membrane binding region of sticholysin-I (StI), a cytolysin isolated from the sea anemone Stichodactyla helianthus. The mutant and the ligand moiety would be linked by proteinase-sensitive peptides through the StI cysteine residue blocking the toxin binding region and hence the IT non-specific killing activity. To accomplish this objective the first step was to obtain the mutant StI W111C, and to evaluate the impact of mutating tryptophan 111 by cysteine on the toxin pore-forming capacity. After proteolysis of the cleavage sequence, a short peptide would remain attached to the toxin. The next step was to evaluate whether this mutant is able to form pores even with a residual peptide linked to cysteine 111. In this work we demonstrated that (i) StI W111C shows pore-forming capacity in a nanomolar range, although it is 8-fold less active than the wild-type recombinant StI, corroborating the previously reported importance of residue 111 for the binding of StI to membranes, and (ii) the mutant is able to form pores even with a residual seven-residue peptide linked to cysteine 111. In addition, it was demonstrated that binding of a large molecule to cysteine 111 renders an inactive toxin that is no longer able to bind to the membrane. These results validate the mutant StI W111C for its use in the construction of tumour proteinase-activated ITs. 相似文献