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Schüth F. Busch O. Hoffmann C. Johann T. Kiener C. Demuth D. Klein J. Schunk S. Strehlau W. Zech T. 《Topics in Catalysis》2002,21(1-3):55-66
High-throughput experimentation in catalysis comprises the following components: (i) automated high-throughput synthesis, (ii) testing in Stage I and Stage II, for which to some extent novel assays are necessary, (iii) data handling and experimental design tools, and (iv) robotics. This contribution covers these topics, using examples from the research of the authors, but also from the literature, in order to illustrate the problems and opportunities associated with high-throughput experimentation in catalysis, focusing particularly on heterogeneous catalysis. 相似文献
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Achim Streit Piotr Bala Alexander Beck-Ratzka Krzysztof Benedyczak Sandra Bergmann Rebecca Breu Jason Milad Daivandy Bastian Demuth Anastasia Eifer André Giesler Björn Hagemeier Sonja Holl Valentina Huber Nadine Lamla Daniel Mallmann Ahmed Shiraz Memon Mohammad Shahbaz Memon Michael Rambadt Morris Riedel Mathilde Romberg Bernd Schuller Tobias Schlauch Andreas Schreiber Thomas Soddemann Wolfgang Ziegler 《电信纪事》2010,65(11-12):757-762
UNICORE is a European Grid Technology with more than 10 years of history. Originating from the Supercomputing domain, the latest version UNICORE 6 has turned into a general-purpose Grid technology that follows established standards and offers a rich set of features to its users. The paper starts with an architectural insight into UNICORE 6, highlighting the workflow features, standards and the different clients. Next, the current state of advancement is presented by describing recent developments. The paper closes with an outlook on future planned developments. 相似文献
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S Oravec K Demuth I Myara A Hornych I Balazovjech 《Canadian Metallurgical Quarterly》1998,99(10):525-530
The authors present the evidence of atherogenic properties of VLDL and LDL potentiation on the model of endothelial cells-human umbilical vein endothelial cells, by preferable stimulation of the endothelial cell to thromboxane A1 production at in vitro conditions by atherogenic lipoproteins. The vasoconstrictive, thrombogenic and atherogenic effects of TXA2 are exerted on the vessel in this way. The ratio prostacycline/thromboxane, decisive for the maintenance of vascular homeostasis, is less than 1, this means the beneficial effect of prostacycline can not be applied. Protective, antiatherogenic effect of HDL and its subfractions HDL2 and HDL3/predominantly through their function in the reverse cholesterol transport from the periphery to the liver, antioxidative influence on LDL, as far as antiaggregation and fibrinolytic effects of HDL/is multiplied by the fact that HDL preferably stimulates the secretion of prostacycline by the endothelial cell. The ratio prostacycline/thromboxane A2 is higher than 1, that means beneficial vasodilative, antiaggregation and antiatherogenic effect of prostacycline on the vessel wall predominate. Quantitative evaluation of antiatherogenic effects of HDL subfractions (HDL2 and HDL3) revealed more significant antiatherogenic effect in HDL2 subfraction-in the sense of prostacycline secretion stimulation and exertion of its beneficial effects on the vessel. (Fig. 5, Ref. 33.) 相似文献
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S Sopper U Sauer S Hemm M Demuth J Müller C Stahl-Hennig G Hunsmann V ter Meulen R D?rries 《Canadian Metallurgical Quarterly》1998,72(12):9940-9947
The pathogenesis of human immunodeficiency virus-associated motor and cognitive disorders is poorly understood. In this context both a protective and a harmful role of the immune system has been discussed. This question was addressed in the present study by correlating the occurrence of neurologic disease in simian immunodeficiency virus (SIV)-infected macaques with disease progression and the humoral and cellular intrathecal antiviral immune response. Overt neurologic signs consisting of ataxia and apathy were observed at a much higher frequency in rapid progressor animals (6 of 12) than in slow progressors (1 of 7). Whereas slow progressors mounted a strong antiviral antibody (Ab) response as evidenced by enzyme-linked immunosorbent and immunospot assays, neither virus-specific Ab titers nor Ab-secreting cells could be found in the cerebrospinal fluid (CSF) or brain parenchyma of rapid progressors. Similarly, increased infiltration of CD8(+) T cells and cytotoxic T lymphocytes specific for viral antigens were detected only in the CSF of slow progressors. The finding that neurologic signs develop frequently in SIV-infected macaques in the absence of an antiviral immune response demonstrates that the immune system does not contribute to the development of motor disorders in these animals. Moreover, the lower incidence of neurologic symptoms in slow progressors with a strong intrathecal immune response suggests a protective role of the virus-specific immunity in immunodeficiency virus-induced central nervous system disease. 相似文献
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Using e.s.r., ATR and d.s.c., data on the chemical and structural superficial modifications of LDPE films under corona discharge in the presence of air have been obtained. The results show that the electrical discharge creates superficial ethylenic bonds (1630 cm?1) and carbonyl groups (1720 cm?1), the amount of which varies inversely with the main power supply. The treated samples when stored in the presence of light and air undergo marked structural and chemical changes. Formation of a thin waxy layer rich in 〉 CO and 〉 CC 〈 bonds with almost total absence of CH2CH2 groups characteristic of LDPE is observed. 相似文献
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PR Wyde DK Moore T Hepburn CL Silverman TG Porter M Gross G Taylor SG Demuth SB Dillon 《Canadian Metallurgical Quarterly》1995,38(4):543-550
Reshaped human MAb RSHZ19, which is specific for the surface fusion protein of respiratory syncytial virus (RSV) is in clinical development for the prevention and treatment of RSV-induced disease in human infants. The current studies profile lung virus clearance and evaluate lung histopathology in MAb-treated, RSV-infected cotton rats, a well characterized model of RSV infection. The highest dose of this MAb (10 mg/kg) administered parenterally 24 h before infection decreased subgroup A or B RSV lung titers to below detectable levels (> or = 2.3 log10 reduction), and significantly reduced lung virus titers (> or = 2.0 log10 reduction) when administered 96 h postinfection. Prophylactic administration of 10 mg/kg RSHZ19 was significantly more protective than 1000 mg/kg conventional human immune serum globulin (HSIg), and protective serum-neutralizing titers in MAb-treated animals (1:32, which correlated with approximately 40 micrograms/ml determined by anti-idiotype ELISA) were significantly lower than those reported previously for HSIg or for convalescent human serum (1:200-1:400). MAb concentration in lung lavages was determined by ELISA to be approximately 1% of the serum MAb concentration, but was not detectable by neutralization assay. The degree of lung histopathology in MAb-treated cotton rats was proportional to lung virus titer, and inversely proportional to the RSHZ19 dose administered. There was no evidence of exacerbated disease in the lungs of MAb-treated animals. These studies thus support the potential clinical utility of RSHZ19 MAb in the prevention and treatment of RSV-induced disease in humans. 相似文献
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Cornelius Demuth Matthias BiedaAndrés F. Lasagni Achim MahrleAndreas Wetzig Eckhard Beyer 《Journal of Materials Processing Technology》2012,212(3):689-699
This work presents a new approach to the thermal modelling of direct laser interference patterning (DLIP). The spatial and temporal evolution of the temperature distribution within metallic substrates, which are irradiated by nanosecond pulses during the DLIP process, is computed by means of a smoothed particle hydrodynamics (SPH) method. The developed model considers the conversion of laser energy into heat within a very thin surface layer, heat conduction into the bulk material and the effect of latent heat during involved phase transformations. The importance of proper determination of characteristic SPH parameters and adequate spatial resolution of the computational domain on the accuracy of the numerical solution is discussed in detail. The computed temperature distributions are in good agreement with the results of a previously developed FEM model and correspond very well to simultaneously performed experimental investigations. 相似文献