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71.
72.
A case of using the Semantic Interoperability Framework for custom orthopedic implants manufacturing
Milan Zdravković Miroslav Trajanović Miloš Stojković Dragan Mišić Nikola Vitković 《Annual Reviews in Control》2012,36(2):318-326
The efficiency and effectiveness of the daily practice in orthopedic surgery depend on the availability, interoperability and unique access to a wide set of information, related to the patient’s medical record and diagnosis, domain knowledge and available resources and staff. The most important of the tangible resources, needed for the therapeutic or preventive actions are orthopedic implants. In some cases, the implants may be highly complex and customized products, which need to be manufactured (assembled) on basis of the above information in a shortest possible timeframe. In this paper, the case of the custom orthopedic implants manufacturing is described from the perspective of the collaborative enterprising, with special consideration of the interoperability issues of the involved enterprise collaboration. It is shown how the previously developed Semantic Interoperability Framework can be used to improve the efficiency of the manufacturing and other relevant processes. 相似文献
73.
Sneh Punia Bangar Monica Trif Fatih Ozogul Manoj Kumar Vandana Chaudhary Milan Vukic Maharishi Tomar Sushil Changan 《Comprehensive Reviews in Food Science and Food Safety》2022,21(2):1958-1978
According to the Food and Agriculture Organization of United Nations reports, approximately half of the total harvested fruits and vegetables vanish before they reach the end consumer due to their perishable nature. Enzymatic browning is one of the most common problems faced by fruit and vegetable processing. The perishability of fruits and vegetables is contributed by the various browning enzymes (polyphenol oxidase, peroxidase, and phenylalanine ammonia-lyase) and ripening or cell wall degrading enzyme (pectin methyl-esterase). In contrast, antioxidant enzymes (superoxide dismutase and catalase) assist in reversing the damage caused by reactive oxygen species or free radicals. The cold plasma technique has emerged as a novel, economic, and environmentally friendly approach that reduces the expression of ripening and browning enzymes while increasing the activity of antioxidant enzymes; microorganisms are significantly inhibited, therefore improving the shelf life of fruits and vegetables. This review narrates the mechanism and principle involved in the use of cold plasma technique as a nonthermal agent and its application in impeding the activity of browning and ripening enzymes and increasing the expression of antioxidant enzymes for improving the shelf life and quality of fresh fruits and vegetables and preventing spoilage and pathogenic germs from growing. An overview of hurdles and sustainability advantages of cold plasma technology is presented. 相似文献
74.
Ramakul Prakorn Songkun Eakkapit Pattaweekongka Weerawat Hronec Milan Pancharoen Ura 《Korean Journal of Chemical Engineering》2006,23(1):117-123
The transport of Co(II) through hollow-fiber-supported liquid membrane containing di-(2-ethylhexyl) phosphoric acid (D2EHPA)
diluted in kerosene was examined. The mass transfer rate, expressed as permeability, P, focused on diffusion through the aqueous
layer in the feed solution, the organic layer and the aqueous layer in the stripping solution. Experiments were performed
as a function of aqueous feed solution velocity (100-500 ml/min), carrier concentration (0.1-20% v/v), aqueous stripping solution
velocity (100-1,000 ml/min) and feed concentration (100-1,000 ppm) with 0.1 M HCl in the product phase. pH of the feed solution
was 5.0. The measured permeabilities were compared to generally accepted mass transfer correlations. The validity of the prediction
was evaluated with the experimental data, and the data were found to tie in well with the theoretical values. The model is
the reported describing that the rate limiting step in the transport of the ion was the diffusion through both aqueous films,
feed and stripping, whereas the organic resistance of the membrane was negligible. From this study, the model has good potential
for the prediction of permeability of Co(II). 相似文献
75.
E. Di Todaro C. T. O. F. Ruckert M. T. Milan W. W. Bose Filho J. R. Tarpani D. Spinelli 《Journal of Materials Engineering and Performance》2006,15(5):608-613
The main goal of this work was to evaluate the effectiveness of Walker’s equation in collapsing the fatigue crack propagation
data of a SAE AMS 7475-T7351 aluminum alloy loaded either longitudinally (L-T) or transversely (T-L) to the rolling direction.
T-L orientation testpieces presented lower ductility and fracture toughness values than L-T orientation. As a consequence,
during the fatigue crack propagation tests, T-L testpieces exhibited a stronger influence of monotonic modes of fracture,
resulting in higher Paris exponent values,m. Walker’s model was able to collapse fatigue crack propagation data of L-T test pieces at different applied stress ratios,R. However, for the T-L orientation, due to theR ratio dependency onm andC, simply averaging ofm values for the calculations of Walker’s exponent proved to be inefficient. A simple analytical procedure was proposed by
the authors to modify Walker’s model to take into account such effect. For T-L test pieces, when Walker’s model is modified
by considering both Paris’s exponent as well the coefficient as a function of theR ratio, the fatigue crack growth data collapses within a narrow band, thus allowing predictions to be made satisfactorily.
The collapsed band is even narrower if the empirical relationm=a+blogC is used instead of simple polynomial equations due to a better correlation coefficient. 相似文献
76.
77.
Andrea Adamoli Dmitrijs Zaparanuks Milan Jovic Matthias Hauswirth 《Software Quality Journal》2011,19(4):801-839
A significant body of prior work has devised approaches for automating the functional testing of interactive applications.
However, little work exists for automatically testing their performance. Performance testing imposes additional requirements upon GUI test automation tools: the tools have to be able to replay
complex interactive sessions, and they have to avoid perturbing the application’s performance. We study the feasibility of
using five Java GUI capture and replay tools for GUI performance test automation. Besides confirming the severity of the previously
known GUI element identification problem, we also describe a related problem, the temporal synchronization problem, which is of increasing importance for GUI applications that use timer-driven activity. We find that most of the tools we
study have severe limitations when used for recording and replaying realistic sessions of real-world Java applications and
that all of them suffer from the temporal synchronization problem. However, we find that the most reliable tool, Pounder,
causes only limited perturbation and thus can be used to automate performance testing. Based on an investigation of Pounder’s
approach, we further improve its robustness and reduce its perturbation. Finally, we demonstrate in a set of case studies
that the conclusions about perceptible performance drawn from manual tests still hold when using automated tests driven by
Pounder. Besides the significance of our findings to GUI performance testing, the results are also relevant to capture and
replay-based functional GUI test automation approaches. 相似文献
78.
Poly(styrene)‐poly(lactide) (PS‐PLA), poly (tert‐butyl styrene)‐poly(lactide) (PtBuS‐PLA) diblocks, and poly(tert‐butyl styrene)‐poly(styrene)‐poly(lactide) (PtBuS‐PS‐PLA) segmented and tapered triblocks of controlled segment lengths were synthesized using nitroxide‐mediated controlled radical polymerization. Well‐defined PLA‐functionalized macromediators derived from hydroxyl terminated TEMPO (PLAT) of various molecular weights mediated polymerizations of the styrenic monomers in bulk and in dimethylformamide (DMF) solution at 120–130°C. PS‐PLA and PtBuS‐PLA diblocks were characterized by narrow molecular weight distributions (polydispersity index (Mw/Mn) < 1.3) when using the PLAT mediator with the lowest number average molecular weight Mn= 6.1 kg/mol while broader molecular weight distributions were exhibited (Mw/Mn = 1.47‐1.65) when using higher molecular weight mediators (Mn = 7.4 kg/mol and 11.3 kg/mol). Segmented PtBuS‐PS‐PLA triblocks were initiated cleanly from PtBuS‐PLA diblocks although polymerizations were very rapid with PS segments ~ 5–10 kg/mol added within 3–10 min of polymerization at 130°C in 50 wt % DMF solution. Tapering from the PtBuS to the PS segment in semibatch mode at a lower temperature of 120°C and in 50 wt % DMF solution was effective in incorporating a short random segment of PtBuS‐ran‐PS while maintaining a relatively narrow monomodal molecular weight distribution (Mw/Mn ≈ 1.5). © 2008 Wiley Periodicals, Inc. J Appl Polym Sci 2008 相似文献
79.
Milan Anderle Sergej Čelikovský Didier Henrion Jiří Zikmund 《International journal of control》2013,86(8):1641-1652
This article aims to further improve previously developed design for Acrobot walking based on partial exact feedback linearisation of order 3. Namely, such an exact system transformation leads to an almost linear system where error dynamics along trajectory to be tracked is a 4-dimensional linear time-varying system having three time-varying entries only, the remaining entries being either zero or one. In such a way, exponentially stable tracking can be obtained by quadratically stabilising a linear system with polytopic uncertainty. The current improvement is based on applying linear matrix inequalities (LMI) methods to solve this problem numerically. This careful analysis significantly improves previously known approaches. Numerical simulations of Acrobot walking based on the above-mentioned LMI design are demonstrated as well. 相似文献
80.