全文获取类型
收费全文 | 36篇 |
免费 | 2篇 |
专业分类
化学工业 | 8篇 |
建筑科学 | 2篇 |
轻工业 | 7篇 |
无线电 | 4篇 |
一般工业技术 | 1篇 |
冶金工业 | 14篇 |
自动化技术 | 2篇 |
出版年
2018年 | 1篇 |
2017年 | 1篇 |
2015年 | 1篇 |
2014年 | 1篇 |
2012年 | 2篇 |
2011年 | 2篇 |
2010年 | 1篇 |
2008年 | 1篇 |
2007年 | 1篇 |
2006年 | 1篇 |
2002年 | 1篇 |
2001年 | 1篇 |
1998年 | 5篇 |
1997年 | 3篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 2篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有38条查询结果,搜索用时 15 毫秒
1.
Dreyer David L. Jones Kenneth C. Molyneux Russell J. 《Journal of chemical ecology》1985,11(8):1045-1051
Journal of Chemical Ecology - The feeding deterrency of a series of pyrrolizidine, indolizidine, and quinolizidine alkaloids and selected derivatives was measured against the pea aphid... 相似文献
2.
Logan Molyneux Krishnan Vasudevan Homero Gil de Zúñiga 《Journal of Computer-Mediated Communication》2015,20(4):381-399
Recent research suggests that social interactions in video games may lead to the development of community bonding and prosocial attitudes. Building on this line of research, a national survey of U.S. adults finds that gamers who develop ties with a community of fellow gamers possess gaming social capital, a new gaming‐related community construct that is shown to be a positive antecedent in predicting both face‐to‐face social capital and civic participation. 相似文献
3.
Valerio Choque Pilar Ramírez de la Piscina Daniel Molyneux Narcís Homs 《Catalysis Today》2010,149(3-4):248-253
The partial oxidation of methane is studied at 673–873 K over new Ru-based catalysts supported on TiO2–ZrO2 with different TiO2 content. Supports were prepared by a sol–gel method, and RuCl3 and RuNO(NO3)3 were used as ruthenium precursors to prepare the catalysts (1–2 wt% Ru). The effect of the reaction temperature on the catalytic behavior is analyzed, along with the support composition and the Ru precursor used. 相似文献
4.
N Asano A Kato K Matsui AA Watson RJ Nash RJ Molyneux L Hackett J Topping B Winchester 《Canadian Metallurgical Quarterly》1997,7(8):1085-1088
The polyhydroxylated nortropane alkaloids called calystegines occur in many plants of the Convolvulaceae, Solanaceae, and Moraceae families. Certain of these alkaloids exhibit potent inhibitory activities against glycosidases and the recently demonstrated occurrence of calystegines in the leaves, skins, and sprouts of potatoes (Solanum tuberosum), and in the leaves of the eggplant (S. melongena), has raised concerns regarding the safety of these vegetables in the human diet. We have surveyed the occurrence of calystegines in edible fruits and vegetables of the families Convolvulaceae, Solanaceae, and Moraceae by GC-MS. Calystegines A3, B1, B2, and C1 were detected in all the edible fruits and vegetables tested; sweet and chili peppers, potatoes, eggplants, tomatoes, Physalis fruits, sweet potatoes, and mulberries. Calystegines B1 and C1 were potent competitive inhibitors of the bovine, human, and rat beta-glucosidase activities, with Ki values of 150, 10, and 1.9 microM, respectively for B1 and 15, 1.5, and 1 microM, respectively, for C1. Calystegine B2 was a strong competitive inhibitor of the alpha-galactosidase activity in all the livers. Human beta-xylosidase was inhibited by all four nortropanes, with calystegine C1 having a Ki of 0.13 microM. Calystegines A3 and B2 selectively inhibited the rat liver beta-glucosidase activity. The potent inhibition of mammalian beta-glucosidase and alpha-galactosidase activities in vitro raises the possibility of toxicity in humans consuming large amounts of plants that contain these compounds. 相似文献
5.
In a patient who presented with quadriplegia a large mass was demonstrated radiologically in the cervical part of the spinal canal. The patient came from an area where there is a high prevalence of schistosomiasis, and antischistosomal antibodies were present in the serum. Treatment with the antischistosomal drug niridazole led to a total clinical recovery and almost complete disappearance of the myelographic filling defect. 相似文献
6.
7.
RW Snow CS Molyneux PA Warn J Omumbo CG Nevill S Gupta K Marsh 《Canadian Metallurgical Quarterly》1996,55(2):144-149
Repeated cross-sectional surveys among infants sleeping under insecticide-treated bed nets (ITBN) and contemporary control infants were used to estimate changes in Plasmodium falciparum exposure due to ITBN use on the Kenyan coast. Presence of P. falciparum parasites or total P. falciparum Immunoglobulin M (IgM) seropositivity were used independently and in combination in a constant risk catalytic conversion model to estimate the force of infection in ITBN and control communities. Such studies during infancy avoid problems of early saturation of prevalence due to high forces of infection and persistence of infection, minimize problems of self-treatment, and can be conducted among large populations covering a wide geographic area. These contrast previous parasitologic studies of ITBN among older children and the traditional entomologic studies of transmission that are logistically demanding. Our investigations demonstrated that parasite prevalence, IgM seropositivity, and the force of transmission were all significantly reduced by 50%. In addition, more infants under ITBN entered their second year of life without previous exposure to P. falciparum than control infants. These effects upon delayed acquisition of effective immunity require careful monitoring during future vector control programs using ITBN. 相似文献
8.
Philip Molyneux 《应用聚合物科学杂志》2012,123(2):657-671
Hydrophobically substituted water‐soluble polymers (HSWSP) act as associative thickeners through the reversible crosslinking from noncovalent interactions between the various groups on the polymer chains in aqueous solution. This article shows how the intrinsic viscosity (IV) of nonionic HSWSP can be used to define the thermodynamics of these interactions. Literature data on the IV of pullulans substituted by nucleobase ester groups (thyminylbutyryl and adeninylbutyryl) (Mocanu et al., Can J Chem, 1995, 73, 1933) are used as an exemplar of these procedures. The intramolecular crosslinking in these substituted pullulans is deduced to be “unimolecular” (association constant K1 = 1 M?1), as contrasted with the “bimolecular” behavior expected from the stacking of the free nucleobases; evidently the crosslinking results from hydrophobic interactions between the butyryl linking groups and the main chain. The results are compared with those from other HSWSP, and from cosolute binding systems. The use of the water–octanol partition coefficients of model systems to elucidate hydrophobic interactions in HSWSP, and of denaturant cosolutes (especially urea) to diagnose the presence and strength of these interactions, are also discussed. Emphasis is placed on the need for further such studies to identify the interactions underlying the rheological behavior of the nonionic HSWSP, and of the more common ionic types. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011 相似文献
9.
The corrosion of commercial hardmetals containing 6, 8 and 10% Co with small additions of Cr3C2 and VC, in solutions of pH 1, 3, 5 and 10, and in a cutting fluid of pH 8.6, has been investigated using weight loss, atomic absorption spectroscopy, and metallographic techniques. For a surface area 420 mm2, at 20°C, the amount of cobalt dissolved in pH 5 and 10 solutions was less than 0.05 mg per day and in the cutting fluid was less than 0.05 mg in 7 days. Salt in the water increased the corrosion rate in the pH 10 solution by over five times. Corrosion was highest in the hardmetal containing VC. Corrosion in a pH 1 solution at 20 °C for 24 h (weight loss about 1 mg) did not affect the mean strength of the hardmetals. Erosion by alumina balls during corrosion increased the corrosion rate in the pH 1 solution by 16 to 29 times, formed a thick layer of WC denuded of cobalt, and reduced the strength of the eroded-corroded hardmetals by 0.54 to 0.76 times. 相似文献
10.
Bernard Molyneux 《Minds and Machines》2012,22(4):277-297
I show how a robot with what looks like a hard problem of consciousness might emerge from the earnest attempt to make a robot that is smart and self-reflective. This problem arises independently of any assumption to the effect that the robot is conscious, but deserves to be thought of as related to the human problem in virtue of the fact that (1) the problem is one the robot encounters when it tries to naturalistically reduce its own subjective states (2) it seems incredibly difficult from the robot??s own naturalist perspective and, most importantly, (3) it invites the robot to engage in the exact same metaphysical responses as humans offer to the problem of consciousness. Despite the fact that it invites the robot to consider extravagant metaphysical solutions, the problem I explore is purely algorithmic. The robot cannot complete its naturalist physicalist reduction as a matter of algorithmic fact, whether or not the naturalist physicalist reduction would be correct as a matter of metaphysical fact. It is hoped that by reproducing the familiar seeming problem in an artificial context, a greater understanding of the human problem of consciousness can be achieved. 相似文献