Perovskite nanostructures have attracted much attention in recent years due to their suitability for a variety of applications such as photovoltaics, light-emitting diodes (LEDs), nanometer-size lasing, and more. These uses rely on the conductive properties of these nanostructures. However, electrical characterization of individual, thin perovskite nanowires has not yet been reported. Here, conductive atomic force microscopy characterization of individual cesium lead halide nanowires is presented. Clear differences are observed in the conductivity of nanowires containing only bromide and nanowires containing a mixture of bromide and iodide. The differences are attributed to a higher density of crystalline defects, deeper trap states, and higher inherent conductivity for nanowires with mixed bromide–iodide content. 相似文献
Multimedia Tools and Applications - The natural population-based prediction of type 2 diabetes is costly since it needs a high number of resources. Even though much research has used machine... 相似文献
Multimedia Tools and Applications - Gastrointestinal stromal tumor is one of the critical tumors that doctors do not suggest to get frequent endoscopy, so there is a need for a diagnosis system... 相似文献
ABSTRACTThis paper focuses on the social aspects of food consumption in the public realm and how built environment design should include places for conviviality. Current urban planning may fulfil human needs, but in some cases, individuals have unpleasant experiences while meeting these needs. A review of existing literature indicates that studies of conviviality during food consumption has focused on design qualities. To investigate the Egyptian experiences in food consumption, the current study employed qualitative and quantitative approaches through four streams of data collection: observations, interviews, opinionnaire and permeability analysis of catchment areas. The results provide design implications for conviviality of food practices to discover the multilateral dimensions of design that can make social interactions part of a satisfying experience. This research concludes that for conviviality attached to food consumption, it is essential to focus on replicable aspects like supporting activities, social settings, and the design based on intent. 相似文献
This study explores the idea that all public urban places should be planned and designed keeping children in mind. Children from urban places are exposed to different types of urban and social problems. While many Western cities address the needs of children and young people, Egyptian cities overlook children’s needs and behaviours, especially in architectural terms. This study attempts to place Egyptian children at the centre of the urban agenda based on universal laws that secure children. The contribution provides procedures and design principles. A survey in Cairo was conducted through interviews with children and their parents. The results indicate that a child-friendly community can be created for positive social interaction between children, families and the built environment. The result also suggests that a third place will be the most appropriate area where a child-friendly community can be created. Such places are crucial for learning how children interact as they grow up because they are places where informal activities take place. The research concludes that for an improved built environment, it is important to focus on children’s lives in third places and what designers provide or hinder with normative design principles through the process of creating child-friendly cities. 相似文献
Image registration, accuracy, processing time and occlusions are the main limitations of augmented reality (AR) based jaw surgery. Therefore, the main aim of this paper is to reduce the registration error, which will help in improving the accuracy and reducing the processing time. Also, it aims to remove outliers and remove the registration outcomes trapped in local minima to improve the alignment problems and remove the occlusion caused by surgery instrument. The enhanced Iterative Closest Point (ICP) algorithm with rotation invariant and correntropy was used for the proposed system. Markerless image registration technique was used for AR-based jaw surgery. The problem of occlusion caused by surgical tools and blood is solved by using stereo based tracing with occlusion handling techniques. This research reduced alignment error 0.59 mm?~?0.62 mm against 0.69?~?0.72 mm of state-of-the-art solution. The processing time of video frames was enhanced to 11.9?~?12.8 fps against 8?~?9.15 fps in state-of-the-art solution. This paper is focused on providing fast and accurate AR-based system for jaw surgery. The proposed system helps in improving the AR visualization during jaw surgery. The combination of methods and technology helped in improving AR visualization for jaw surgery and to overcome the failure caused by a large rotation angle and provides an initial parameter for better image registration. It also enhances performance by removing outliers and noises. The pose refinement stage provides a better result in terms of processing time and accuracy.
Multimedia Tools and Applications - Accurate food image classification is often critical to accurately monitor the dietary assessment to reduce the risk of different heart-related diseases,... 相似文献
Wireless Personal Communications - Matched filtering has found its way in many diverse applications such as communication, signal processing and more. The emphasis of this paper is on the design... 相似文献
In this paper, the quality metrics suite for object oriented (OO) design is partially used as an initial concept to develop metrics for statically measuring quality of KADS-domain knowledge bases. KADS-domain knowledge bases have common characteristics with OO, and other distinct features that limit the usage of some OO quality metrics. Therefore, new sets of domain knowledge quality metrics are proposed. The proposed matrices are enriched with an automatic tool used to measure quality of real world expert systems. In order to assess the effectiveness of these proposed quality metrics, these metrics were applied on a sample of real world agriculture application domains developed by CLAES (The Central Laboratory of Agriculture Expert System). Finally, complete analysis of the results obtained due to applying these metrics is presented. 相似文献