The Experts below are selected from a list of 1458 Experts worldwide ranked by ideXlab platform

Y.f. Li - One of the best experts on this subject based on the ideXlab platform.

  • Active Illumination for Robot Vision
    Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007
    Co-Authors: S. Y. Chen, Jianwei Zhang, Houxiang Zhang, Wanliang Wang, Y.f. Li
    Abstract:

    A vision sensor is the robot's eye to perceive its environment, but the perception performance can be significantly affected by illumination Conditions. This paper presents strategies of adaptive illumination control for robot vision to achieve the best scene interpretation. It investigates how to obtain the most Comfortable illumination Conditions for a vision sensor. In a "Comfort" Condition the image reflects the natural properties of the concerned object. "DisComfort" may occur if some scene information is lost. Strategies are proposed to optimize the pose and optical parameters of the luminaire and the sensor, with emphasis on controlling the intensity and avoiding glare.

Mark B Luther - One of the best experts on this subject based on the ideXlab platform.

  • Thermal and ventilation performance of a naturally ventilated sports hall within an aquatic centre
    Energy and Buildings, 2013
    Co-Authors: Priyadarsini Rajagopalan, Mark B Luther
    Abstract:

    There has been an increasing demand for sports facilities in urban areas recently. As a result of this, more attention is drawn towards not only the energy performance of these building typologies, but also creating a healthy indoor environment for its users. This study investigates the thermal and ventilation performance of a naturally and hybrid (assisted by exhaust fans) ventilated sports hall within an aquatic centre situated in the temperate climate of Victoria, Australia. Its evaluation predominantly considers continuous on-site measurements of air temperature stratification, thermal Comfort, CO2 levels, thermal images and tracer gas ventilation studies. Further ventilation analysis is accompanied by CFD simulations towards the development of optimised Conditioning strategies. A high level of thermal disComfort was observed for this space during a late summer period when over-heating is a concern. A number of energy efficient strategies are considered to improve the thermal Comfort Condition without adopting refrigerant Conditioning and not sacrificing indoor air quality. A better understanding of how to improve and control such spaces primarily under a naturally ventilated Condition is the outcome of this study. ?? 2012 Elsevier B.V. All rights reserved.

Priyadarsini Rajagopalan - One of the best experts on this subject based on the ideXlab platform.

  • Thermal and ventilation performance of a naturally ventilated sports hall within an aquatic centre
    Energy and Buildings, 2013
    Co-Authors: Priyadarsini Rajagopalan, Mark B Luther
    Abstract:

    There has been an increasing demand for sports facilities in urban areas recently. As a result of this, more attention is drawn towards not only the energy performance of these building typologies, but also creating a healthy indoor environment for its users. This study investigates the thermal and ventilation performance of a naturally and hybrid (assisted by exhaust fans) ventilated sports hall within an aquatic centre situated in the temperate climate of Victoria, Australia. Its evaluation predominantly considers continuous on-site measurements of air temperature stratification, thermal Comfort, CO2 levels, thermal images and tracer gas ventilation studies. Further ventilation analysis is accompanied by CFD simulations towards the development of optimised Conditioning strategies. A high level of thermal disComfort was observed for this space during a late summer period when over-heating is a concern. A number of energy efficient strategies are considered to improve the thermal Comfort Condition without adopting refrigerant Conditioning and not sacrificing indoor air quality. A better understanding of how to improve and control such spaces primarily under a naturally ventilated Condition is the outcome of this study. ?? 2012 Elsevier B.V. All rights reserved.

  • Thermal and ventilation performance of a multifunctional sports hall within an aquatic centre
    2012
    Co-Authors: Priyadarsini Rajagopalan, Hisham Elkadi
    Abstract:

    There has been an increasing demand for sports facilities in urban areas recently. As a result of this, more attention is drawn towards not only the energy performance of these building typologies, but also creating a healthy indoor environment for the users. This Study investigates the thermal and ventilation performance of a sports hall within an aquatic centre using computational fluid dynamics (CFD) simulations. IES Virtual Environment software was used to perform the simulations. A number of scenarios were tested by changing the position of extract fans as well as by incorporating natural ventilation strategies. A high level of disComfort was observed in the space. Better Comfort Condition was achieved by changing the location of exhaust fans ad openings. The results help to recommend some guidelines to inform the proposed refurbishment plans of the site.

S. Y. Chen - One of the best experts on this subject based on the ideXlab platform.

  • Active Illumination for Robot Vision
    Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007
    Co-Authors: S. Y. Chen, Jianwei Zhang, Houxiang Zhang, Wanliang Wang, Y.f. Li
    Abstract:

    A vision sensor is the robot's eye to perceive its environment, but the perception performance can be significantly affected by illumination Conditions. This paper presents strategies of adaptive illumination control for robot vision to achieve the best scene interpretation. It investigates how to obtain the most Comfortable illumination Conditions for a vision sensor. In a "Comfort" Condition the image reflects the natural properties of the concerned object. "DisComfort" may occur if some scene information is lost. Strategies are proposed to optimize the pose and optical parameters of the luminaire and the sensor, with emphasis on controlling the intensity and avoiding glare.

Jānis Ratnieks - One of the best experts on this subject based on the ideXlab platform.

  • thermal Comfort Condition assessment in test buildings with different heating cooling systems and wall envelopes
    Energy Procedia, 2017
    Co-Authors: Staņislavs Gendelis, Andris Jakovics, Jānis Ratnieks
    Abstract:

    Abstract The main aim of this study is a comprehensive analysis of long-term monitoring data of thermal Comfort and disComfort parameters in small identical test buildings equipped with different heating/cooling systems. Calculations of PPD index expressed the human perception of thermal Comfort and such disComfort factors like draught rate and vertical air temperature difference are provided for the room in winter season running three different heating systems – electric heater, air-air heat pump and air-water heat pump, as well as for the summer cooling with split type air Conditioning systems. It is shown that the type of heating/cooling system and its working regime has a significant impact on thermal Comfort Conditions in the room. Recommendations for the optimal operating regimes and choice of the heating system from the thermal Comfort point of view are provided.

  • Thermal Comfort Condition assessment in test buildings with different heating/cooling systems and wall envelopes
    Energy Procedia, 2017
    Co-Authors: Staņislavs Gendelis, Andris Jakovics, Jānis Ratnieks
    Abstract:

    Abstract The main aim of this study is a comprehensive analysis of long-term monitoring data of thermal Comfort and disComfort parameters in small identical test buildings equipped with different heating/cooling systems. Calculations of PPD index expressed the human perception of thermal Comfort and such disComfort factors like draught rate and vertical air temperature difference are provided for the room in winter season running three different heating systems – electric heater, air-air heat pump and air-water heat pump, as well as for the summer cooling with split type air Conditioning systems. It is shown that the type of heating/cooling system and its working regime has a significant impact on thermal Comfort Conditions in the room. Recommendations for the optimal operating regimes and choice of the heating system from the thermal Comfort point of view are provided.