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排序方式: 共有241条查询结果,搜索用时 31 毫秒
61.
Allhusen Virginia; Belsky Jay; Booth-LaForce Cathryn L.; Bradley Robert; Brownwell Celia A.; Burchinal Margaret; Campbell Susan B.; Clarke-Stewart K. Alison; Cox Martha; Friedman Sarah L.; Hirsh-Pasek Kathryn; Houts Renate M.; Huston Aletha; Jaeger Elizabeth; Johnson Deborah J.; Kelly Jean F.; Knoke Bonnie; Marshall Nancy; McCartney Kathleen; Morrison Frederick J.; O'Brien Marion; Tresch Owen Margaret; Payne Chris; Phillips Deborah; Pianta Robert; Randolph Suzanne M.; Robeson Wendy W.; Spieker Susan; Lowe Vandell Deborah; Weinraub Marsha 《Canadian Metallurgical Quarterly》2004,40(5):651
This study evaluated the extent to which first-grade class size predicted child outcomes and observed classroom processes for 651 children (in separate classrooms). Analyses examined observed child-adult ratios and teacher-reported class sizes. Smaller classrooms showed higher quality instructional and emotional support, although children were somewhat less likely to be engaged. Teachers in smaller classes rated typical children in those classes as more socially skilled and as showing less externalizing behavior and reported more closeness toward them. Children in smaller classes performed better on literacy skills. Larger classrooms showed more group activities directed by the teacher, teachers and children interacted more often, and children were more often engaged. Lower class sizes were not of more benefit (or harm) as a function of the child's family income. First-grade class size in the range typical of present-day classrooms in the United States predicts classroom social and instructional processes as well as relative changes in social and literacy outcomes from kindergarten to first grade. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Dusanka Zupanski Milija Zupanski Lewis D. Grasso Renate Brummer Isidora Jankov Daniel Lindsey 《International journal of remote sensing》2013,34(24):9637-9659
The weather research and forecasting (WRF) model and the maximum likelihood ensemble filter (MLEF) data assimilation approach are used to examine the potential impact of observations from the future Geostationary Operational Environmental Satellite, generation R (GOES-R) on improving our knowledge about clouds. Synthetic radiances are assimilated from the 10.35 μm channel of the GOES-R advanced baseline imager (ABI) employing a ‘non-identical twins’ experimental setup. The experimental results are examined for an extratropical cyclone named Kyrill that produced unusually strong winds, widespread damage and fatalities in Western Europe in January 2007. The data assimilation problem is especially challenging for this case, as there is a large error in the model-simulated radiances resulting from incorrect cloud location. Although this problem is difficult to eliminate, data assimilation results indicate the potential of GOES-R data to significantly reduce these errors. 相似文献
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Lewis D. Grasso Manajit Sengupta John F. Dostalek Renate Brummer Mark Demaria 《International journal of remote sensing》2013,34(15):4373-4384
During the next decade, data from a new generation of US geostationary and polar orbiting satellites will become available. To prepare for these data, representative imagery of these satellites is desirable. Two independent methods have been developed to create imagery from future satellites before they are placed into orbit. One method uses data from current operational and experimental satellites. Data obtained this way are referred to as simulated imagery. Another method generates satellite imagery by using numerical models. Data obtained by this method are referred to as synthetic imagery. Each method has some weaknesses that can be overcome by using both methods together. Synthetic imagery for two future US sensors is introduced in this paper. Emphasis is placed on a severe thunderstorm event. 相似文献
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Renate Fruchter 《AI & Society》2005,19(1):8-21
This paper presents a new perspective of the impact of collaboration technology on the degrees of engagement and specific interaction zones in interactive workspaces. The study is at the intersection of the design of physical work spaces, i.e., bricks, rich electronic content such as video, audio, sketching, CAD, i.e., bits, and new ways people behave in communicative events, i.e., interaction. The study presents: (1) an innovative multi-modal collaboration technology, called RECALL (patented by Stanford University), that supports the seamless, real-time capture of concept generation during project brainstorming and project review sessions, (2) the deployment of RECALL in an interactive workspace that supports real project review sessions, called FISHBOWL, and (3) the observations of the impact of RECALL and the interactive workspace on degrees of engagement and interaction zones as it is deployed in the specific FISHBOWL sessions. 相似文献
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Sebastian A. Mayr Raditya Subagia Renate Weiss Nikolaus Schwaiger Hedda K. Weber Johannes Leitner Doris Ribitsch Gibson S. Nyanhongo Georg M. Guebitz 《International journal of molecular sciences》2021,22(23)
Modification of kraft lignin (KL), traditionally uses harsh and energy-demanding physical and chemical processes. In this study, the potential of the bacterial laccase CotA (spore coating protein A) for oxidation of KL under mild conditions was assessed. Thereby, the efficiency of CotA to oxidize both softwood and hardwood KL of varying purity at alkaline conditions was examined. For the respective type of wood, the highest oxidation activity by CotA was determined for the medium ash content softwood KL (MA_S) and the medium ash content hardwood KL (MA_H), respectively. By an up to 95% decrease in fluorescence and up to 65% in phenol content coupling of the structural lignin units was indicated. These results correlated with an increase in viscosity and molecular weight, which increased nearly 2 and 20-fold for MA_H and about 1.3 and 6.0-fold for MA_S, respectively. Thus, this study confirms that the CotA laccase can oxidize a variety of KL at alkaline conditions, while the origin and purity of KL were found to have a major impact on the efficiency of oxidation. Under the herein tested conditions, it was observed that the MA_H KL showed the highest susceptibility to CotA oxidation when compared to the other hardwood KLs and the softwood KLs. Therefore, this could be a viable method to produce sustainable resins and adhesives. 相似文献
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Religiosity is typically related to positive outcomes following distress, yet it remains unclear how religiosity may alter responses when one's religious identity itself is challenged. The present investigation examined the role of appraisal-coping processes in the relations between religious orientations, emotions, and action intentions following identity threat. Study 1 (N = 63) assessed associations with religious orientations (intrinsic and extrinsic) following a threat targeting one's religion. Although both orientations evoked a broad array of responses, those related to an intrinsic orientation were stronger and included more negative reactions (e.g., sadness, confrontation). Study 2 (N = 59) evaluated the impact of a nonreligious identity threat, which elicited only adaptive responses (i.e., problem-focused coping, support seeking) that were associated with an intrinsic orientation. Appraisal-coping processes mediated relations between religiosity and responses to an identity threat in both studies but were most evident following religious threat. Taken together, these findings suggest that whereas an extrinsic religious orientation may function as a social identity in response to religious threats, the positive effects of an intrinsic religious orientation appear to be undermined by threats targeting the social group and belief system therein. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献