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851.
The authors report a series of experiments in which they use the masked congruence priming paradigm to investigate the processing of masked primes in the manual and verbal response modalities. In the manual response modality, they found that masked incongruent primes produced interference relative to both congruent and neutral primes. This finding, which replicates the standard finding in the masked congruence priming literature, is presumed to reflect the conflict that arises between two incompatible responses and, thus, to index the extent of processing of the masked prime. Somewhat surprisingly, when participants were asked to respond verbally in the same task, masked incongruent primes no longer produced interference, but masked congruent primes produced facilitation. These findings are surprising because they suggest that the processing of nonconsciously perceived primes extends to the response level in the manual, but not verbal, response modality. The authors propose that the modulation of the masked congruence priming effect by response modality is due to verbal, but not manual, responses being mediated by the lexical-phonological production system. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
852.
Aaron Espino-Zárate Rodolfo D. Morales Alfonso Nájera-Bastida Manuel J. Macías-Hernández Alejandro Sandoval-Ramos 《Metallurgical and Materials Transactions B》2010,41(5):962-975
Flow in a six-strand billet tundish, using turbulence inhibitors (TIs), was characterized using inputs of a pulsed tracer
and mathematical simulations. It was found that to control turbulence attaining high fluid fractions under plug flow patterns,
the key parameter for designing TIs is the dissipation rate of kinetic energy. TI designs that induce steep dissipation gradients
are less efficient as flow controllers than those designs that yield more prolonged dissipation gradients from the inhibitor
bottom to the bulk flow. A direct relationship between the dissipation of kinetic energy and the linear acceleration of the
smallest turbulent eddies in the flow was established through dimensional analysis. The inhibitor with the highest linear
accelerations of eddies in the viscous sublayer at the Kolmogorov scale, for a given liquid flow rate, yields the better flow
control. 相似文献
853.
Algarabel Salvador; Rodríguez Lucía-Azahara; Escudero Joaquín; Fuentes Manuel; Peset Vicente; Pitarque Alfonso; Cómbita Lina-Marcela; Mazón Jose F. 《Canadian Metallurgical Quarterly》2010,24(5):599
Objective: The retrieval deficit hypothesis states that the lack of deficit in recognition often observed in patients with Parkinson's disease is because of the low retrieval requirements of the task, given that these patients have retrieval and not encoding deficits. To test this hypothesis we investigated recognition memory by familiarity in Parkinson's patients and in patients with Lewy Bodies disease and Parkinson with dementia. Method: We analyzed to what extent the experimental groups were able to recognize by familiarity in a typical yes/no recognition memory task. The experimental groups were patients with early nondemented Parkinson's disease, advanced nondemented Parkinson's disease, demented Parkinson's patients, and patients with dementia with Lewy Bodies. We compared their performance with a group of young and another group of old healthy participants. The estimation of familiarity was made by analyzing recognition of word targets and distractors consisting of combinations of different letters in comparison with a condition in which targets and distractors were composed of similar letters, even though subjects were unaware of the independent variable. Results: The results indicate that familiarity was used at the same level by controls, patients with early Parkinson's disease and patients with dementia with Lewy Bodies. Although late Parkinson patients also used familiarity, its effect was only marginally significant. Patients with Parkinson's disease and dementia were not capable of using familiarity in recognition memory. Conclusions: Our results support the retrieval deficit hypothesis as Parkinson's patients without dementia show no deficit in a situation in which the retrieval requirements are minimal. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
854.
Víctor Manuel Arellano Rosa María Barragán Alfonso Aragón Marco Helio Rodríguez Alfredo Pérez 《Geothermics》2011,40(3):190-198
The Cerro Prieto IV (CP IV) reservoir, located in the northeastern part of the Cerro Prieto (Mexico) geothermal field, was studied in order to define its pre-exploitation conditions and initial (2000–2005) response to exploitation. Bottomhole thermodynamic conditions were estimated by modeling heat and fluid flows using the WELLSIM program and well production data. Produced fluid chemical and isotopic data were also analyzed to investigate characteristic patterns of behavior over time, which were then compared against simulation results to obtain a conceptual model of the CP IV reservoir. According to the proposed model, two zones in the reservoir – separated by Fault H and producing fluids of different characteristics – were identified under pre-exploitation conditions. Wells in the area to the east-southeast (south block) produce very high-enthalpy fluids (≥2000 kJ/kg), with very low chloride (≤7000 mg/kg) and high CO2 (>6‰ molar) and δD (<−94‰). In contrast, wells toward the west-northwest (north block) show moderate-enthalpy fluids (1400–1800 kJ/kg), with high chloride (∼12,000 mg/kg) and relatively low CO2 (<6‰ molar) and δD (<−94‰). Dilution caused by cooler water entry, boiling due to steam gain, both occurring in the north block, and steam condensation in the south block were identified as the three main reservoir processes associated with exploitation. Also, it was found that the dynamics of the CP IV reservoir is controlled by the Fault H system. 相似文献
855.
Francisco Perdigones Antonio Luque Alfonso M. Gañán-Calvo José M. Quero 《Microsystem Technologies》2013,19(2):227-236
A bi-membrane structure is the main component of flow regulators for microfluidics with positive gain actuation. This microstructure is composed of two deformable circular membranes with different area tied by a rigid link that makes them move together. A comprehensive analysis of this microstructure is presented in this paper, which also provides an easy and practical design process in microsystems. The study is based on the microstructure behavior in typical microfluidic networks and is presented using dimensionless plots which have been obtained by numerical simulations based on finite element method performed by CoventorWare. The microstructure is defined using four dimensionless numbers for its seven dimensional parameters, and a dimensionless pressure. This fact represents the universal character of the design, dividing it into geometrical and material parts. The dimensionless pressure allows the use of any homogeneous and isotropic material in the design process of the devices. The values obtained from the plots are compared with simulation results using specific materials and dimensions and these comparisons present good agreement. Using the proposed analysis and design process, this sort of microstructures can be used by MEMS designers as standard components in microfluidic devices. 相似文献
856.
Carlos Sánchez Stefan Hübner Belén Abad David Alfonso Isidoro Segura 《International Journal of Hydrogen Energy》2012
Power production from renewable energy resources is increasing day by day. In the case of Spain, in 2009 it represented 26.9% of installed power and 20.1% of energy production. Wind energy makes the most important contribution to this production. Wind generators are greatly affected by the restrictive operating rules of electricity markets because, as wind is naturally variable, wind generators may have serious difficulties in submitting accurate generation schedules on a day-ahead basis, and in complying with scheduled obligations. Weather forecast systems have errors in their predictions depending on wind speed. Therefore, if wind energy becomes an important actor in the energy production system, these fluctuations could compromise grid stability. In the previous paper in this brief series [1], the authors showed technical results of the proposed solution, which consists of combining wind energy production with a biomass gasification system and a hydrogen generation system based on these two sources. In the present paper it is shown the economic results of the study, considering the most profitable technical configurations and three possible economic scenarios. 相似文献
857.
Aurora N. Díaz Francisco G. Sánchez Ana F. G. Díaz Enrique N. Baro Manuel Algarra Alfonso Aguilar 《Food Analytical Methods》2012,5(3):448-453
An image-based detection of an enhanced chemiluminescence enzyme-linked immunosorbent assay was developed for 2,4,5-trichlorophenoxy
acetic acid with an anti-rabbit secondary antibody conjugated to peroxidase (goat anti-rabbit IgG–HRP). Data acquisition on
microtiter wells is performed using a low-cost charge-coupled device camera for capturing images. The standard curve was produced
for 0.01–5,000 ng mL−1 of 2,4,5-trichlorophenoxy acetic acid. The minimum detectable concentration was 24 pg mL−1, and the relative standard deviation was 5.5% (n = 10) for a 5 ng mL−1 sample concentration. Similar sensitivity was obtained with enzyme-linked immunosorbent assay using the same polyclonal antibody
and data acquisition by a spectrofluorometer. This method was applied to apple juice with recoveries between 95% and 111%
and relative standard deviation between 6.1% and 11.3%. 相似文献
858.
Christophe Caillier Anthony Ayari Vincent Gouttenoire Jean‐Michel Benoit Vincent Jourdain Matthieu Picher Matthieu Paillet Sylvie Le Floch Stephen T. Purcell Jean‐Louis Sauvajol Alfonso San Miguel 《Advanced functional materials》2010,20(19):3330-3335
A transistor based on an individual multiwalled carbon nanotube is studied under high‐pressure up to 1 GPa. Dramatic effects are observed, such as the lowering of the Schottky barrier at the gold–nanotube contacts, the enhancement of the intertube conductance, including a discontinuity related to a structural transition, and the decrease of the gate hysteresis of the device. 相似文献
859.
Alfonso Montella Massimo Aria Antonio D’Ambrosio Filomena Mauriello 《Accident; analysis and prevention》2012
Aim of the study was the analysis of powered two-wheeler (PTW) crashes in Italy in order to detect interdependence as well as dissimilarities among crash characteristics and provide insights for the development of safety improvement strategies focused on PTWs. At this aim, data mining techniques were used to analyze the data relative to the 254,575 crashes involving PTWs occurred in Italy in the period 2006–2008. 相似文献
860.
Eva Llera Sastresa Alfonso Aranda Usón Ignacio Zabalza Bribián Sabina Scarpellini 《Renewable & Sustainable Energy Reviews》2010,14(2):679-690
This paper presents an integrated method that assesses the socio-economic impact of establishing renewable energy on a regional scale, in particular on the creation of jobs. The method proposed is based on the collection, critical analysis and presentation of the results obtained using primary information sources considering the jobs created as the most direct measure of the socio-economic potential of renewable energy sources. Its design includes contributions extracted from a prior analysis of the existing assessment methods, to lessen the uncertainty of the job ratios often used in these types of analysis. The integrated method implemented has been applied to the autonomous community of Aragon (Spain) as a pilot case, through which the method has been tested and the indicators selected to analyse the socio-economic impact of renewable energy sources on the jobs created, the quality of the jobs and other factors related to the socio-economic development of a territory: technological development, per capita income, territorial development and human capital. 相似文献