Table-tennis under High Intensity Discharge (HID) Lighting

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

MPPT Based Photovoltaic High Intensity Discharge Street Lighting System Using Fuzzy Logic Controller

Photovoltaic (PV) systems are increasingly used to generate electric energy from the solar irradiation incident on PV modules. The single ended primary inductance converter (SEPIC) is studied for maximum power point tracking and battery charging. High MPPT accuracy and high conversion efficiency can be achieved for different atmospheric conditions. A pulse-current-charging scheme with adaptive ...

متن کامل

Economic Analysis of Greenhouse Lighting: Light Emitting Diodes vs. High Intensity Discharge Fixtures

Lighting technologies for plant growth are improving rapidly, providing numerous options for supplemental lighting in greenhouses. Here we report the photosynthetic (400-700 nm) photon efficiency and photon distribution pattern of two double-ended HPS fixtures, five mogul-base HPS fixtures, ten LED fixtures, three ceramic metal halide fixtures, and two fluorescent fixtures. The two most efficie...

متن کامل

Luminaires: High Intensity Discharge Luminaires

While proper illumination is needed in commercial and industrial settings, the selection of the right lighting system can make a significant difference in energy consumption. Energy savings of up to 50 percent or more are possible in some cases. Less efficient indoor lighting sources often create heat as well as light, and can be a serious source of excess heat in buildings. The additional cool...

متن کامل

Performance-induced emotions experienced during high-stakes table tennis matches

Objectives: To characterize the contents of emotions experienced by elite table tennis players during highstakesmatches and the situational elements that contribute to these experiences. Design: A four-case study. Method: Three top-level table tennis players from the French Men’s Table Tennis Team volunteered toparticipate in the study. Four matches were studied. Procedures involved: (a) videot...

متن کامل

New table-tennis rating system

We present a new system for rating the playing strength of table-tennis players. The system is based on Bayesian principles and is designed to handle a large changing population of players, where some players play frequently whereas other players play infrequently. The system takes into account the length of time since a player last played a tournament. When processing matches in a single tourn...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the Illuminating Engineering Society

سال: 1988

ISSN: 0099-4480

DOI: 10.1080/00994480.1988.10748705