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Lionel K. Arnold R. Basu Roy Choudhury 《Journal of the American Oil Chemists' Society》1962,39(8):379-380
Extraction of soybean flakes with 90, 95, 98 and 100% ethanol resulted in more rapid lipid and less rapid non-lipid removal
with the increasing ethanol concentrations. There was little difference in the quality of the oil produced by the different
solvents. Protein content of the residual meal averaged 52.1%. 相似文献
75.
Suniti Misra Ashis K. Dutta A. Choudhury Amitabha Ghosh 《Journal of chemical ecology》1985,11(3):339-342
Oleanolic acid, a major component pentacyclic triterpene in the leaves ofAvicennia officinalis was found to be oxidized to oleanonic acid in the natural environment of Sunderban mangrove forest.Presented in part at the All India Symposium on Marine Plants, held on Oct. 30–Nov. 1,1983 at National Institute of Oceanography Dona Paula, Goa India. 相似文献
76.
A.?K.?RainaEmail author A.?Haldar A.?K.?Chakraborty P.?B.?Choudhury M.?Ramulu C.?Bandyopadhyay 《Bulletin of Engineering Geology and the Environment》2004,63(3):209-214
Ground vibration (Vmax) and air-overpressure/noise (p) are some of the negative effects of blasting. The associated human annoyance and complaints are expected to show an increasing trend in the future as there is no economically viable alternative to blasting in mines in India.A study of the human response to blasting in four mining localities across India has shown that the response is not simply political, as frequently assumed. It has been found that irrespective of those questioned, a basic concern for the safety of property was the main response. There was a greater response from the middle-aged and middle-educated while fewer women than men responded. Assuming that a 100% negative response from the inhabitants will translate into complaints, a methodology is suggested to take account of the human response criteria when considering blasting within 400 m of habitations. 相似文献
77.
We present a semi-analytical model incorporating the effects of edge bond relaxation, the third nearest neighbor interactions,
and edge scattering in graphene nanoribbon field-effect transistors (GNRFETs) with armchair-edge GNR (AGNR) channels. Unlike
carbon nanotubes (CNTs) which do not have edges, the existence of edges in the AGNRs has a significant effect on the quantum
capacitance and ballistic I-V characteristics of GNRFETs. For an AGNR with an index of m=3p, the band gap decreases and the ON current increases whereas for an AGNR with an index of m=3p+1, the quantum capacitance increases and the ON current decreases. The effect of edge scattering, which reduces the ON current,
is also included in the model.
This article is published with open access at Springerlink.com 相似文献
78.
Deepankar Choudhury Rajeev Kumar Bharti Siddharth Chauhan Buddhima Indraratna 《Canadian Metallurgical Quarterly》2008,134(10):1558-1563
For an efficient and economical design of a railway track system, it is necessary to understand the behavior of each track component with special reference to ballast and subgrade, which play a pivotal role in distributing the large, cyclic wheel loads longitudinally, laterally, and vertically away from the wheel contact area on the rail surface to the underlying soil strata. This paper presents an analytical model of a track-ballast-subgrade system with different formation soils such as dense uniform sand, stiff clay, loose sand, and soft clay modeled by using a mass-spring dashpot system with two degrees of freedom. This represents the varying energy distribution through ballast and subgrade in the vertical direction. Results are presented in the form of time-displacement response profiles for both the ballast and subgrade layers. In addition, the magnification factors for displacements with variation in subgrade soils for cyclic loading frequencies are reported. It is observed that the results obtained from the present analysis follow the experimentally observed trends already available in the literature. 相似文献
79.
M. V. Ramachandra Praveen Piyush kuchhal Sushabhan Choudhury 《International Journal of Communication Systems》2024,37(9):e5766
Autonomy is becoming a prime requirement for satellite mission control operations. Data-driven methods like Machine Learning models are playing a key role in bringing in autonomy. Health keeping data from satellite telemetry is a key ingredient in these data-driven methods. In real-world satellite operations, the health-keeping telemetry data gradually drifts due to adverse space weather effects and wear and tear of electronic and mechanical components. The key question that arises is how to detect and quantify the data drift which is generally a gradual phenomenon. This paper discusses a novel statistical method for detecting data drift occurring in satellite telemetry. For the purpose of experimental work in this paper, an actual telemetry data set of the BUS CURRENT sensor which is part of the Electrical Power System of a Low Earth Orbit Satellite was considered. Data drift detection test was carried out using this sensor data using the developed novel statistical method and with Kolmogorov Smirnov test which is a probabilistic method. Both results are analysed and compared. Thereafter novel statical method was used to check its efficacy using a synthetic data set with induced drift. 相似文献
80.
Md Yeakub Hassan Faisal Hussain Md Sakhawat Hossen Salimur Choudhury 《International Journal of Communication Systems》2019,32(13)
This paper addresses the research question of total system interference minimization while maintaining a target system sum rate gain in an inband underlay device‐to‐device (D2D) communication. To the best of our knowledge, most of the state of the art research works exploit offline resource allocation algorithms to address the research problem. However, in Long‐Term Evolution (LTE) and beyond systems (4G, 5G, or 5G+), offline resource allocation algorithms do not comply with the fast scheduling requirements because of the high data rate demand. In this paper, we propose a bi‐phase online resource allocation algorithm to minimize the total system interference for inband underlay D2D communication. Our proposed algorithm assumes D2D pairs as a set of variable elements whereas takes the cellular user equipment (UEs) as a set of constant elements. The novelty of our proposed online resource allocation algorithm is that it incurs a minimum number of changes in radio resource assignment between two successive allocations among the cellular UEs and the D2D pairs. Graphical representation of the simulation results suggests that our proposed algorithm outperforms the existing offline algorithm considering number of changes in successive allocation for a certain percentage of sum rate gain maintaining the total system interference and total system sum rate very similar. 相似文献