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991.
S Mori T Konishi K Matsuoka M Deguchi M Ohta O Mizuno T Ueno T Okinaka Y Nishimura N Ito T Nakano 《Canadian Metallurgical Quarterly》1998,37(7):606-610
We report a nephrotic syndrome patient with eosinophilia who developed ileus, epigastralgia and malabsorption due to strongyloidiasis which became symptomatic by steroid therapy. The patient was then treated with thiabendazole and recovered. A percutaneous renal biopsy revealed minimal change nephrotic syndrome. This renal injury may be brought on by severe infection of Strongyloides stercoralis. It is important to rule out strongyloidiasis prior to corticosteroid therapy to patients from eosinophilia endemic areas. 相似文献
992.
研究了温度及气体压力对漂移室(工作于正比区)气体放大倍数的影响,温度和气体压力的变化范围分别是5 ̄40℃及90 ̄105kPa。用实验数据拟合得到了函数关系并测量了几种饱和度下函数中的参数值。 相似文献
993.
This article reports a study of primary and secondary recrystallization in tungsten wire. Samples with two different processing
histories were annealed in the electron emission microscope, and the recrystallization process was followed. The fibers produced
by drawing were first observed to widen and break up into shorter lengths. As the temperature was raised, the secondary recrystallization
occurred in a characteristic, stepwise motion, with the secondary grain moving from one position to the next and then remaining
pinned at the new position, sometimes for the entire length of the test. It was found that the temperature at which secondary
recrystallization occurred depended on the heating rate. If a slow heating rate was used, the temperature at which secondary
recrystallization occurred would be higher. This result was interpreted to mean that the slower heating rate allowed more
strain to be annealed out of the wire before secondary recrystallization occurred and thus lowered the driving force for this
process. The secondary recrystallization temperature could not be correlated with the primary grain structure or differences
in the potassium bubble distribution in the wire. The primary recrystallized grain structures of the two wires were also different,
and this difference, too, was attributed to differences in the amount of stored energy in the wire at the start of the annealing.
It was also shown that even though the bulk potassium content of the two wires was the same and the bubble distributions in
the two wires were similar, the bubble distributions in the ingots were different. 相似文献
994.
995.
Einstein Gilles O.; McDaniel Mark A.; Richardson Sarah L.; Guynn Melissa J.; Cunfer Allison R. 《Canadian Metallurgical Quarterly》1995,21(4):996
Past research has frequently failed to find age differences in prospective memory. This article tested the possibility that age differences would be more likely to emerge on a prospective memory task that was high in self-initiated retrieval. In the 1st experiment, participants were asked to perform an action every 10 min (a time-based task presumed to be high in self-initiated retrieval); in the 2nd experiment, participants were asked to perform an action whenever a particular word was presented (an event-based task presumed to be relatively low in self-initiated retrieval). Age differences were found with the time-based task but not with the event-based task. This pattern of age differences was again found in a 3rd experiment in which a new experimental procedure was used and the nature of the prospective memory task was directly varied. Generally, the results suggest that self-initiated retrieval processes are an important component of age-related differences across both retrospective and prospective memory tasks. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
996.
The β and γ decay of uranium atoms from xUO3(100 - x)[3B2O3 · MO] glass systems, where M=Sr or Pb and 0 ≤ × ≤ 20 mol%, is investigated. The γ decay data are very close to each other, for the same UO3 contents, in both the systems. The composition dependence of the β decay exhibits a lower slope in the lead borate matrix than in the strontium borate matrix. The ratio between the β activity of samples with the same uranium ion concentrations in the two investigated glass systems is a function of the x values. The results are correlated with the amount of radioactive nuclides and with the structural environments of the radionuclides. The leaching treatment in water at temperatures below 100°C evidenced no aqueous dissolution of glass samples. 相似文献
997.
A dilatometer for measuring autogenous deformation in hardening portland cement paste 总被引:1,自引:1,他引:0
Different techniques for measuring autogenous deformation in cement paste are discussed, and a newly developed dilatometer designed specially for measuring this deformation is described. A particular characteristic of the dilatometer is the encapsulation of the cement paste in corrugated moulds. This restricts moisture loss and ensures that the hardening cement paste suffers insignificant restraint. In addition, the encapsulation permits measurements to commence shortly after casting. 相似文献
998.
With the aim of applying micromechanical approaches to fracture mechanics, we carried out dynamic tensile tests and instrumented impact tests with Charpy-type specimens both with a V-shaped notch and with a crack. We compared two micromechanical strain-rate-dependent models based on a modified Gurson flow function by simulating various dynamically loaded specimens. The results of the tests indicate that the critical void volume fractionf
c and the characteristic lengthl
c are practically independent of the strain rate and the geometry of the specimen. The behavior of the specimens subjected to strains and fracture can be characterized by the parameters determined in tensile tests and impact tests with the Charpy-type specimens. By the three-dimensional analysis based on the strain-rate-dependent Gurson model, we predict the onset of crack growth inside the Charpy specimen.Fraunhofer Institut für Werkstoffmechanic, Freiburg, Deutschland. Published in Fiziko-Khimicheskaya Mekhanika Materialov, Vol. 30, No. 2, pp. 77–84, March–April, 1994. 相似文献
999.
Infiltration and localization of preferential infiltration zones at the dam abutment are measured using radioactive tracer tests of flow in boreholes,meanwhile interconnection between boreholes and the energing water points is analysed.The theory and practice of radioactive tracer synthetic detective method are described to give methods and calculation formulae used under the condition of stable flow in single well to measure permeability coefficient and hydrostatic heads.Major single hole techniques including measurement for seepage line,velocity,rate of seepage flow and relationship of recharge of groundwater in aquifers are introduced briefly.The possibilities offered by natureal tracers are analysed,uincluding electric-conduct,pH-value and temperature of water as well as stable isotopes(D,^18O) and tritium.Furthermore,the sensibilities of this theory and methods were confirmed by detecting seepage flow field of Xinanjiang Dam. 相似文献
1000.
服务器虚拟化大大提高了服务器的资源利用率,对客户来说是十分有利的。但是,也带来了一些诸如破坏正常的网络架构、可能致使系统服务器超载等信息安全风险,需要采取一定的影响策略予以解决。能采取的影响策略有:安装兼容性杀毒软件、不间断地进行服务器硬件的容量分析等。 相似文献