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371.
无无人机实时摄影测量是一种快速发展且具有广泛应用前景的高新技术。为更好地理解现阶段无人机实时摄影测量技术的应用现状与为未来的发展趋势,通过文献综述的方法,系统地梳理了无人机摄影测量技术的基本原理;从飞行平台与控制、航线规划与导航、影像处理与提取和三维建模与应用四个方面评述了无人机摄影测量的关键技术;从城市规划与建设、灾害监测与评估、文物保护与研究和土地利用与管理四个领域论述了无人机摄影测量技术的应用现状。研究表明,通过数据处理与分析算法的优化和智能化与自动化的发展提升这两方面的创新应用,能够极大地推动无人机实时摄影测量技术的发展,更好地实现高质量、高效益和高安全的发展目标。 相似文献
372.
Electronic surveillance systems are being used rapidly today, ranging from a simple video camera to a complex biometric surveillance system for facial patterns and intelligent computer vision based surveillance systems, which are applied in many fields such as home monitoring, security surveillance of important places and mission critical tasks like air traffic control surveillance. Such systems normally involve a computer system and a human surveillance operator, who looks at the dynamic display to perform his surveillance tasks. Exploitation of shared information between these physical heterogeneous data capture systems with human operated functions is one emerging aspect in electronic surveillance that has yet to be addressed deeply. Hence, an innovative interaction interface for such knowledge extraction and representation is required. Such an interface should establish a data activity register frame which captures information depicting various surveillance activities at a specified spatial and time reference.This paper presents a real time eye tracking system, which integrates two sets of activity data in a highly dynamic changing and synchronous manner in real-time with respect to both spatial and time frames, through the “Dynamic Data Alignment and Timestamp Synchronisation Model”. This model matches the timestamps of the two data streams, aligns them to the same spatial reference frame before fusing them together into a data activity register frame. The Air Traffic Control (ATC) domain is used to illustrate this model, where experiments are conducted under simulated radar traffic situations with participants and their radar input data. Test results revealed that this model is able to synchronise the timestamp of the eye and dynamic display data, align both of these data spatially, while taking into account dynamic changes in space and time on a simulated radar display. This system can also distinguish and show variations in the monitoring behaviour of participants. As such, new knowledge can be extracted and represented through this innovative interface, which can then be applied to other applications in the field of electronic surveillance to unearth monitoring behaviour of the human surveillance operator. 相似文献
373.
Juan R. Cuadrado-Roura 《Papers in Regional Science》2020,99(2):327-358
The aim of this paper is to show the development of regional and urban studies in Spain, pointing out the main factors that have influenced such development, the topics analysed by the Spanish researchers and why Spain has today a remarkable position in the field of regional science. Regional problems have always taken up a very important place among the concerns of the Spanish society. This has been closely linked to longstanding historical and internal political conflicts. But, leaving aside some very interesting contributions and territorial projects developed in the past, the research on regional issues emerged really in the 1960s and the consolidation phase took place from 1975 to 2000, as explained in Sections 2 and 3. From the beginning of this century the field has received a clear thrust, supported by a new generation of economists and geographers. The increasing presence of Spanish researchers in international congresses, workshops and specialized journals enable to state that Spain has reached a similar level as in more advanced countries. Section 4 collects the most outstanding topics and innovative contributions made from 2000 to now. A short final note (section 5) points out some final remarks and why a positive continuity of the progress observed can be expected. 相似文献
374.
Designing a soccer shoe that fits specific customer’s requirements can improve satisfaction. However, there is no sufficient information to bridge the semantic needs and design characteristics of soccer shoes. Hence, this study is aimed at integrating multiple technologies with semantic customer requirements, shoe-form categories, and appearance designs, and developing a practical Kansei soccer shoe recommendation system. The psychological responses of a customer and perceptions of soccer shoe products are evaluated using Kansei engineering method. Based on a factor analysis, customers’ requirements are classified as aesthetic, functional, and comfortable. A total of 203 soccer shoe images were used to evaluate and categorise the external shoe form into nine design elements using the Kawakida Jirou method, and the weight assigned to each shoe-form category under Kansei semantic adjectives was determined using grey system theory. The quantification theory Type 1 method was used to determine the priority of the design elements. The results indicate that 10 pairs of semantic adjectives used by customers are related to soccer shoe forms. Furthermore, the design priority of each design element of the form category under the three types is reported. A soccer shoe recommendation system that can generate suggested soccer shoe samples for customers is developed by integrating the above-mentioned technologies. A validation experiment was conducted to verify the feasibility of the proposed system. The overall satisfaction of the recommended samples generated via the system is 87.08%, as reported by 80 participants. The findings prove that a new soccer shoe business model can be launched using the proposed system, linking the semantic customer requirements to the soccer shoe-form categories. 相似文献
375.
This paper proposes a financial evaluation of the investment in SMARTechs in wastewater companies. SMARTechs are innovative technologies that enable companies to work toward the circular economy approach, thanks to allowing the development of by-products from wastewater. A simulation of the financial impact of the SMARTech introduction was conducted based on the Italian tariff system. It is performed assuming two different scenarios. These relate to a market's presence (or absence) for the by-products resulting from the application of SMARTechs. The results show that investing in these technologies provides both financial and environmental benefits. 相似文献
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377.
本文分析了目前高校毕业生的能力及素质现状,介绍了我国食品科学与工程教育的发展现状及存在的问题,改革与创新实践教学模式是解决这一问题的措施。为深化教育教学改革,提高实践教学质量,结合食品质量与安全国家特色专业建设,我们通过多年的探索和实践,构建了一套比较科学的渐进式多元化的实践教学新模式及考核评价体系,在实践中取得了良好的效果,大学生的创新能力与实践能力均得到了显著提高。 相似文献
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讨论制造对于国家和国民经济的价值，提出制造科学技术与制造业发展的方向。通过近30年来世界各国经济发展的起落，质疑制造业的“夕阳工业”论断,提出依靠什么产业强国的问题。以美国、日本、韩国、东南亚诸国的经济发展历程为依据，批判以第三产业作为经济发展水平判据的观点。认定一个国家如果把经济的基础放在第三产业上，而无独立自主的制造产业，这个国家的经济就容易形成泡沫经济，世界经济大环境一有波动就可能产生经济危机。制造产业的重要价值在于它是实现现代化工业的水之源、木之本，是实现工业化的保障和原动力，是国家实力的脊梁，是支持国家大厦的基石，没有强大制造能力的国家永远不可能成为经济强国。 辨析科学与技术的相互关系，认为科学是技术的基础，科学是潜在的生产力，技术是直接的生产力，科学只有通过技术(特别是制造技术)才能成为现实的生产力。应用研究对于中国显得更为迫切需要，应用研究上不去，工业生产技术也上不去，将永远受制于人，经济发展和国家安全都没有保障。 21世纪中心科学技术(Central Science & Technology)转移的趋势是从信息科学技术到生物科学技术(包括生命科学技术)再到认知科学技术(智能科学技术)。NBICM汇聚技术将是一场引发科技与经济发展新突破的产业革命。 相似文献