The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform

Hu Fu-chao - One of the best experts on this subject based on the ideXlab platform.

  • Research of Space Operation Simulation Based on Virtual Reality
    Computer Simulation, 2011
    Co-Authors: Hu Fu-chao
    Abstract:

    In order to reduce the difference of astronaut Operation between training on the ground and practical Operation in Space,a new training method,Space Operation Simulation Implemented by Virtual Reality,was put forward.The significance,contents and implementation method of Space Operation simulation were described,and the principle of implementation of virtual reality and simulation flow chart were given and simply analyzed.A prototype system as a primer experimentation platform was constructed.And some experiments were completed on the platform.The experiment results demonstrate that the system and methods are effective and practical.

Jiang Zhen-dong - One of the best experts on this subject based on the ideXlab platform.

  • Design and Realization for Visual System Space Operation
    Computer Simulation, 2005
    Co-Authors: Jiang Zhen-dong
    Abstract:

    Space Operation, as a new Operational mode in the new historical conditions, is an important part in future national security strategy. The joint Operation, in which land, sea, air and Space are united, must be the main war style in the future. Space Operation is distinct from other Operational modes in the aspects of its battle object,etc. How to realize the Space battlefield visualization is still an unsolved problem. So the key technologies and display pattern should all be studied. Firstly, this paper defines the concept of Space battlefield visualization. Then it presents a feasible method for realizing Space battlefield visualization in the satellites-information-supported gaming style.Finally, it discusses the key technologies for realizing it. The achievements of this visual simulation system are valuable to the further development.

G M Gryaznov - One of the best experts on this subject based on the ideXlab platform.

  • 30th anniversary of the startup of topaz the first thermionic nuclear reactor in the world
    Atomic Energy, 2000
    Co-Authors: G M Gryaznov
    Abstract:

    April 21, 2000 is the 30th anniversary of the first ground test of the thermionic reactor-converter of the Topaz nuclear power system, which gave Russian science and technology deserved authority and leadership. The successful subsequent flight tests in Space of two test Topaz nuclear power systems in 1987–1988 confirmed the technical characteristics and Operational safety, allowing the startup and Space Operation of nuclear power systems with a maximum service life of about one year.

  • 30th anniversary of the startup of topaz the first thermionic nuclear reactor in the world
    Atomic Energy, 2000
    Co-Authors: G M Gryaznov
    Abstract:

    April 21, 2000 is the 30th anniversary of the first ground test of the thermionic reactor-converter of the Topaz nuclear power system, which gave Russian science and technology deserved authority and leadership. The successful subsequent flight tests in Space of two test Topaz nuclear power systems in 1987–1988 confirmed the technical characteristics and Operational safety, allowing the startup and Space Operation of nuclear power systems with a maximum service life of about one year. The history of the development of the Topaz nuclear power system is presented. 6 figures, 5 references.

David Roberts - One of the best experts on this subject based on the ideXlab platform.

  • a mixed reality telepresence system for collaborative Space Operation
    IEEE Transactions on Circuits and Systems for Video Technology, 2017
    Co-Authors: Allen J. Fairchild, Arturo S. García, Robin Wolff, Terrence Fernando, Simon P Campion, David Roberts
    Abstract:

    This paper presents a mixed reality (MR) system that results from the integration of a telepresence system and an application to improve collaborative Space exploration. The system combines free viewpoint video with immersive projection technology to support nonverbal communication (NVC), including eye gaze, interpersonal distance, and facial expression. Importantly, these features can be interpreted together as people move around the simulation, maintaining a natural social distance. The application is a simulation of Mars, within which the collaborators must come to agreement over; for example, where the Rover should land and go. The first contribution is the creation of an MR system supporting contextualization of NVC. Two technological contributions are prototyping a technique to subtract a person from a background that may contain physical objects and/or moving images and a lightweight texturing method for multiview rendering, which provides balance in terms of visual and temporal quality. A practical contribution is the demonstration of pragmatic approaches to sharing Space between display systems of distinct levels of immersion. A research tool contribution is a system that allows comparison of conventional authored and video-based reconstructed avatars, within an environment that encourages exploration and social interaction. Aspects of system quality, including the communication of facial expression and end-to-end latency are reported.

  • VR - Collaborative telepresence workSpaces for Space Operation and science
    2015 IEEE Virtual Reality (VR), 2015
    Co-Authors: David Roberts, Arturo S. García, Janki Dodiya, Robin Wolff, Allen J. Fairchild, Terrence Fernando
    Abstract:

    We introduce the collaborative telepresence workSpaces for Space Operation and science that are under development in the European research project CROSS DRIVE. The vision is to give Space mission controllers and scientists the impression of “beaming” to the surface of Mars, along with simulations of the environment and equipment, to step out together where a robot has or may move. We briefly overview the design and describe the state of the demonstrator. The contribution of the publication is to give an example of how collaborative Virtual Reality research is being taken up in Space science.

Liu H - One of the best experts on this subject based on the ideXlab platform.

  • Operation and performance of VRF systems: Mining a large-scale dataset
    eScholarship University of California, 2021
    Co-Authors: Qian M, Yan D, Hong T, Liu H
    Abstract:

    The energy consumption of air-conditioning systems has gained increasing attention as it contributes significantly to the global building energy use. The variable refrigerant flow (VRF) system is a common air-conditioning system applied widely in residential and office buildings in China. Understanding the actual Operation and performance of VRF systems is fundamental for the energy-efficient design and Operation of VRF systems. Previous research on VRF system Operation used either limited field data covering certain building types and climate zones or used a questionnaire to obtain a larger dataset. However, they did not capture the wide applications of VRF systems quantitatively across all building types, climate zones, and operating conditions. To fill this gap, statistical and clustering analysis was conducted on the newly proposed key performance indicators of approximately 287,000 VRF systems for residential and commercial buildings in all five climate zones in China. The main findings are: (1) VRF systems are mainly used for cooling in all climate zones in China; (2) among all building types, the duration of use is lowest in residential buildings and highest in hotels and medical buildings; (3) the distribution of the ideal VRF cooling coefficient of performance (COP) is similar across all climate zones and building types; whereas the COPs of ideal VRF heating in the Severe Cold region and Cold regions are lower than those in other climate zones; and (4) partial load Operations for VRF systems are common in residential buildings and office buildings due to the part-time-part-Space Operation mode. These findings can inform the actual application of VRF systems in China, supporting the design, Operation, industry standard development, and performance optimization of VRF systems

  • Operation and performance of VRF systems: Mining a large-scale dataset
    eScholarship University of California, 2021
    Co-Authors: Qian M, Yan D, Hong T, Liu H
    Abstract:

    © 2020 Elsevier B.V. The energy consumption of air-conditioning systems has gained increasing attention as it contributes significantly to the global building energy use. The variable refrigerant flow (VRF) system is a common air-conditioning system applied widely in residential and office buildings in China. Understanding the actual Operation and performance of VRF systems is fundamental for the energy-efficient design and Operation of VRF systems. Previous research on VRF system Operation used either limited field data covering certain building types and climate zones or used a questionnaire to obtain a larger dataset. However, they did not capture the wide applications of VRF systems quantitatively across all building types, climate zones, and operating conditions. To fill this gap, statistical and clustering analysis was conducted on the newly proposed key performance indicators of approximately 287,000 VRF systems for residential and commercial buildings in all five climate zones in China. The main findings are: (1) VRF systems are mainly used for cooling in all climate zones in China; (2) among all building types, the duration of use is lowest in residential buildings and highest in hotels and medical buildings; (3) the distribution of the ideal VRF cooling coefficient of performance (COP) is similar across all climate zones and building types; whereas the COPs of ideal VRF heating in the Severe Cold region and Cold regions are lower than those in other climate zones; and (4) partial load Operations for VRF systems are common in residential buildings and office buildings due to the part-time-part-Space Operation mode. These findings can inform the actual application of VRF systems in China, supporting the design, Operation, industry standard development, and performance optimization of VRF systems