نتایج جستجو برای: lighting program

تعداد نتایج: 476750  

2013
Philippe Joly

The times of oviposition are affected little by the use of a night lighting program. Egg shell weight is not changed by the time of oviposition. Egg weight, shell percentage and it's color vary according to the time of oviposition. The egg characteristics have not been affected by the use of night lighting. Night lighting reduces the percentage of eggs downgraded, in particular reducing by 37 %...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1992
J S Hoffman

EPA's (Environmental Protection Agency) Green Lights Program for energy-efficient lighting illustrates the economic benefits and the market-transforming value of a pollution prevention philosophy. Using technologies available today, and assuming current prices, this program is expected to reduce air pollution 5%, while saving the nation's businesses up to 20 billion in electric bills every year...

2013
Huili Tang Hongjun Li Jun Xu

LEDs (Light emitting diodes) are considered as the most promising green lighting sources in 21st Century for the advantages in high brightness, long lifetime (more than 50,000 hours), low energy consumption, short corresponding time, good shock resistance, non-toxic, recy‐ clable, safety. LEDs have already been extensively used in outdoor displays, traffic lights, high-performance back light un...

ژورنال: علوم آب و خاک 2007
امیر عطا مقدمیان, , فرید شریعتمداری, ,

The purpose of this research was to evaluate the effect of early life nutrient restriction and subsequent intermittent lighting schedule on performance in broiler. In a factorial experiment, the effect of three levels of feeding regimes and two levels of lighting schedule were investigated using 480 day-old male Hubbard chicks. The broiler chickens were randomly distributed over two rooms consi...

2004
J. L. MacIsaac B. M. Rathgeber N. A. McKee R. J. Lien J. B. Hess S. F. Bilgili S. R. McKee

Lighting programs that provide longer daylength as a broiler ages reduce the incidence of ascites and sudden death syndrome. Birds given this type of program often have an increased incidence of carcass scratches due to increased bird activity. The turkey industry uses microwave technology to restrict claw growth and reduce carcass scratches. One concern is that the treatment may reduce bird gr...

Journal: :international journal of occupational hygiene 0
majid hajibabaei department of occupational health engineering, school of health, ahvaz jundishapur university of medical science, ahvaz, iran. azadeh saki department of biostatistics and epidemiology, school of health, ahvaz jundishapur university of medical sciences, ahvaz, iran. rostam golmohammadi department of occupational health engineering, school of public health and research center for health sciences, hamadan university of medical sciences, hamadan, iran. mina cheshmehkhavar department of occupational health engineering, school of health, research committee, ahvaz jundishapur university of medical science, ahvaz, iran. marzieh sarabi department of occupational health engineering, school of health, research committee, ahvaz jundishapur university of medical science, ahvaz, iran. maryam isvand department of occupational health engineering, school of health, research committee, ahvaz jundishapur university of medical science, ahvaz, iran.

well-designed lighting decreases accidents and diseases of eyes and can increase productivity and concentration. increase of energy price and a high proportion of electric lighting energy consumption in buildings due to defects in designing and maintenance led to desirable lighting to be reduced. one of our challenges in providing health and quality of lighting is lack of economic justification...

2010
C. D. ELVIDGE

The vast majority of the world's fossil fuel trace gas emission sources can be detected and mapped using nighttime low light imaging data from the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). This includes human settlements, industrial and commercial facilities, and gas flares. Nocturnal lighting could be regarded as one of the defining featu...

Journal: :Expert Syst. Appl. 2013
Daniel Gómez-Lorente Ovidio Rabaza A. Espín Estrella A. Peña-García

This paper presents a new method for calculating the design of roadway lighting. Apart from its accuracy, this method, which is based on a multi-objective evolutionary algorithm, has the added advantage of enhancing the energy efficiency of lighting installations. This is positive because the economic use of energy resources is evidently a priority in the world today. In our study, an exhaustiv...

Journal: :پژوهش های علوم دامی ایران 0
مرضیه رحمانی محمد امیر کریمی ترشیزی رسول واعظ ترشیزی

. light is an environmental factor, which has profound influences on broilers performance and frequently overlooked management practices. this study was conducted to compare the effects of different lighting programs on growth, carcass parts and economical performance using 320 one day–old broilers (arian 386) in completely randomized design with 4 treatments and 8 replicates per each treatment...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید