Our Telematics and Advanced Transportation Alliance, a minor alliance between academia and industry was founded by Ministry of science and Technology, Taiwan in 2012. In order to enhance the technical ability of telem...
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Related-key attacks allow an adversary to change the key stored in the memory of a physical device via tampering or other means, and subsequently observe the outcomes of the cryptosystem under these modified keys. Cra...
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U.S. agriculture has made impressive strides over the past 50 years in crop yield and input productivity growth, especially since the advent of genetically-modified crops in 1996. However, future growth rates could de...
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In order to diagnose the environmental problems and to protect the ecological environment timely, this paper take Leishan County as the study case and take the grid as the evaluation unit to construct evaluation index...
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In order to ensure high wear resistance of parts and tools, operating at significant dynamic loads in the extreme conditions, the layers different in their function purpose obtained using surfacing methods are widely ...
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ISBN:
(纸本)9783035711516
In order to ensure high wear resistance of parts and tools, operating at significant dynamic loads in the extreme conditions, the layers different in their function purpose obtained using surfacing methods are widely used. In such surfacing compositions, the powders of high-melting compounds characterized by high hardness and strength, are used as a wear resistant component, for example, alloys of tungsten carbide WC + W2C (cast tungsten carbide), and as binder matrix the plastic and metal alloys are *** great interest is the development of methods allowing producing powders of cast tungsten carbide and other high-melting-point materials of uniform composition, characterized by a high sphericity of the particles and having higher physical-mechanical properties. The spherical tungsten carbide was produced by plasma atomization of rotating billet. The universal installation for production of super-hard spherical tungsten carbide and other high-melting-point compounds by plasma atomization of rotating billets was designed for industrial application. The results showed that the application of the technology of plasma rotary atomization of rotation billet to obtain granules of powders of high-melting-point materials was promising, in particular tungsten carbide with sphericity over 90%, microhardness HV0.1 more than 3000 kg/mm2 characterized by high flow ability more than 7.5 s/ 50 g. Due to the use of new materials and innovative design and technological solutions the high reliability, maximum interval of technical service, high resource of operating units and executing mechanism of the equipment were ensured. Due to the use of new high-power plasma system with power supply source with high efficiency coefficient and improved dynamic characteristics, the system of preliminary heating of billets, innovative gas systems, high performance vacuum system, the developed universal system for the production of granules of powders of high-melting-point material were also ap
Swarm intelligence is an emerging subfield of artificial intelligence (AI) where the sophisticated collective intelligence arising from a swarm of simple, unsophisticated individuals cooperating together is used to so...
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With the increasing popularity of the fintech, the ecommerce market has grown rapidly in last decade, and now the mobile devices are unprecedented popular and playing an ever-increasing role in the e-commerce field, e...
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Recent research showed that human mobility is characterized by reproducible patterns, i.e., humans tend to travel a few known places. Timely identification of these significant journeys has prospects for emerging inte...
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A classifier for automatic detection of stance towards vaccination in online forums was trained and evaluated. Debate posts from six discussion threads on the British parental website Mumsnet were manually annotated f...
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Nowadays, with the rapid development of Location-Based Social Networks, information presents a trend of explosive growth. In order to locate the valuable information in tremendous amounts of location-based service dat...
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ISBN:
(纸本)9783319399096;9783319399102
Nowadays, with the rapid development of Location-Based Social Networks, information presents a trend of explosive growth. In order to locate the valuable information in tremendous amounts of location-based service data and prosperi O2O business through LBS, recommender system based on location-based service was presented. This paper takes Sina Microblog LBS data as research object. By analyzing the features of the crawled data and the existing problems of current LBS recommender systems, we present Region-density-based Clustering (RC) recommendation algorithm. For optimization, this paper also presents another algorithm called Distance-and-Category-based Clustering (DCC). This algorithm is mainly about clustering spots base on their distance similarity and category similarity. If two spots are nearby and both category attributes are similar, they will be more likely to gathered into a cluster. Finally, this paper also proposed the visualization method of the LBSNs recommender system.
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