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排序方式: 共有442条查询结果,搜索用时 15 毫秒
31.
Bakali Jan Vegard; Wilberg Theresa; Hagtvet Knut A.; Lorentzen Steinar 《Canadian Metallurgical Quarterly》2010,14(4):368
This study examined patient, therapist, and group variability accounting for alliance and cohesion over three stages in a sample of 145 patients attending short- and long-term psychodynamic group therapy. G-study variance components were estimated for the 14 sources of variation identifiable by the research design. Results indicated that patient variability represented the strongest clinically relevant contribution to both alliance and cohesion. Therapists were important for alliance at all stages, but for cohesion only in the middle stage. The therapist × group interaction was important to the alliance in early therapy and for cohesion within the two first stages, but this contribution then decreased. Group length did not account for any variability in the process measures. Theoretical implications were discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
32.
Zeynep Atamer Jochen Dietrich Horst Neve Knut J. Heller Jörg Hinrichs 《International Dairy Journal》2010,20(6):408-414
The thermal resistances of the Lactococcus lactis phages P008 (a heat-sensitive wide-spread phage) and P680 (a heat-resistant phage) suspended in milk and in solutions supplemented with milk components were studied to elucidate the protective role of milk on phage inactivation. For both phages a decrease of inactivation was observed in casein solution. Furthermore, the inactivation kinetics of the phages in whey, in whey cream (3.5%, 20%, 30% fat) and in whey protein concentrate (0.7%, 5%, 10% protein) were tested. The inactivation experiments in whey cream and in whey protein concentrate having different concentrations of fat and protein revealed that fat had no influence on the inactivation, while, in contrast, the presence of protein had a protective effect. 相似文献
33.
34.
Takuya Akiyama Kengo Magara Gyosuke Meshitsuka Knut Lundquist Yuji Matsumoto 《木材化学与工艺学杂志》2015,35(1):8-16
In this study, we investigated the proportion of erythro- and threo-forms of β-O-4-ether structures and their enantiomeric compositions in hardwood lignin by applying the ozonation method to birch wood meal. Optical activity was not substantially observed in either the erythronic or threonic acids obtained as the ozonation products of β-O-4-structures in birch wood meal. The proportions of the four stereoisomeric forms {(αS,βR)-erythro, (αR,βR)-threo, (αS,βS)-threo, and (αR,βS)-erythro forms} were estimated to be 37-38%, 13-14%, 12-13%, and 36-37% based on the yields of erythronic and threonic acids, and on their optical activities. The proportions suggest that the entire components of β-O-4-ether structures in birch wood lignin have R- and S-configurations at the β-carbon in approximately the same quantities {(βR)-β-O-4-structure: (βS)-β-O-4-structure = 50–52:48–50}; i.e., that the β-ether structures are essentially racemic. This estimation implies that, during lignin biosynthesis, an equal number of enantiomeric forms of β-O-4-bonded quinone methides were formed by radical coupling reactions. 相似文献
35.
36.
Uwe Weigmann Knut Deimer Christian Leininger Ludwig Turba Steffen Jurran 《Datenschutz und Datensicherheit - DuD》2011,35(3):179-182
Der Betreiber eines Verkehrsflughafens muss Bereiche, die nicht allgemein zug?nglich sind, gegen unberechtigten Zugang sichern
und darf, soweit es sich um sicherheitsempfindliche Bereiche handelt, den Zugang nur berechtigten Personen gestatten. Der
Flughafenbetreiber gibt dazu an die Zutrittsberechtigten Ausweise aus, mit denen diese sich beim Betreten des Sicherheitsbereiches
authentifizieren müssen. Für den neuen Flughafen Berlin-Brandenburg International BBI wird auf den Ausweisen wegen der stark
wachsenden Anzahl der zu überprüfenden Personen als zus?tzliches Authentifizierungselement eine biometrische Referenz gespeichert.
Bei der Auswahl des biometrischen Verfahrens sind die besonderen Bedingungen von Verkehrsflugh?fen in Betracht zu ziehen. 相似文献
37.
Bjrg Egelandsdal Kirsti F. Christiansen Vibeke Hst Frank Lundby Jens Petter Wold Knut Kvaal 《Scanning》1999,21(5):316-325
Twelve dressing systems made by varying protein type, oil level, CaCl2, NaCl, and sucrose, were examined using scanning electron microscopy. Images from the 12 systems were quantitatively analysed using methods of feature extraction. These methods were based on vectorisations of the images followed by principal component analysis on the extracted vectors. These techniques were used to examine the reproducibility of the acquired images as well as to relate the images to rheologic and sensory texture parameters. Two feature extraction methods were used: the angle measure technique (AMT) and the absolute difference method (ABDF). The ABDF method used fewer principal components to extract information from images relevant to the complex modulus/sensory viscosity of the system, but the information seemed equally well preserved by the two-feature extraction methods. The AMT was more efficient in classifying the images with respect to protein type. A fair correlation between images and complex modulus was obtained (R=0.73). It is suggested that a better correlation might be obtained by adding more systems, increasing the number of areas imaged for each system as well as avoiding systems of low viscosity. 相似文献
38.
A library of thiol‐terminated methacrylate telomers aimed for use in surface modifications of chromatographic support materials has been prepared by iniferter mediated polymerization, using isopropylxanthic disulfide as a photoiniferter. The telomers range from hydrophobic to hydrophilic and were prepared in different lengths, with the length being adjusted by the ratio of monomer to iniferter used in the polymerization mixture. The telomers were characterized by size‐exclusion chromatography and MALDI‐TOF‐MS. In initial surface characterization experiments, the prepared telomers were attached to the inner surface of fused silica capillaries by radical initiated addition to vinyl groups, and the electro‐osmotic flow (EOF) in the prepared capillaries was determined in a capillary electrophoresis set‐up. The EOF measurements verified surface grafting. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 相似文献
39.
The realisation of E-Government Services in Switzerland makes only little progresS. Reasons are — on the one hand — the federal constitution of the Swiss Confederation. On the other hand, public administrations are concerned about the high initial effort and the corresponding financial investmentS. As a partner in the EU–funded project OntoGov the Swiss Federal Chancellery now takes over an active role in the configuration of E–Government services. With the OntoGov system reference process models are provided at various abstraction layerS. Public administrations can adapt these reference models to their specific needs and make them available for the citizenS. Decisions for designing and adapting reference processes are explicitly modelled using ontologies, making the decision process traceable. Thus, subsequent changes in the reference models can be transferred to all the depending models. 相似文献
40.
One-dimensional semiconductor nanowires are a promising candidate for future electronic devices. The epitaxial growth of nanowires
is often mediated by metal seed particles, usually gold particles. In this paper the setup of a simple and robust technique
to generate nanometer-sized aerosol gold particles by spark discharge is described. Furthermore we demonstrate for the first
time that particles generated by spark discharge can be used to design advanced nanoelectronic structures, namely nanowires.
In order to obtain compact, spherical particles suitable for nanowire growth, the sparkgenerated agglomerate particles were
reshaped in a special compaction furnace. The reshaped particles were used to seed the growth of epitaxial GaP and InP nanowires,
by metal organic vapor phase epitaxy, which was shown to be a reliable and reproducible method. This work indicates the possibility
of using spark-discharge generated gold particles for the creation of new electronic devices even at large scale processing. 相似文献