جستجوی مقالات مرتبط با کلیدواژه « intelligent management » در نشریات گروه « فنی و مهندسی »

Water distribution network is a system consisting of pipe, water reservoir, pump and valves. Water-supply networks in the hydraulic systems for water transmission and distribution have always been considered by researchers. The hydraulic behavior of water transmission lines is based on speed, pressure and flow. The possible changes in the consumption pattern, population, network leak and diameter of pipe line as well as potential of pumps need to be reviewed. In this research, the evaluation of hydraulic management of urban water-supply networks was carried out using Water Gems software. This means that the diameter of pipe lines and the level (height numbers) are changed so that the pressure is reached to the standard level in the network. Additionally, with modeling this township in Water Gems network in addition to the management of pressure, other data including speed, flow and demand rate are also provided. The first mode is based on the true state of water and sewage network was modeled in Semnan province. The second mode network according to the first mode was modified by changing the diameter of the pipes used to supply standard pressure and negative pressures were destroyed. In the second case by changing the elevation of the standard pressure of the atmosphere was 5-7. The optimum diameter of 85 mm and 180 mm was determined. optimized elevation for reservoir is 1430 meters and by increasing, the low pressure or by reducing, the pressure level rises.

According to the technical specifications of the future generations of telecommunication (the fifth generation and later), which should provide new services with very high data rates in the minimum time and a wide coverage, as well as the exponential increase in traffic, the use of combined space-air networks Land is essential. It should be noted that the management of this type of combined networks has major challenges in providing such services. Meanwhile, the intelligent management of resources in satellite-based hybrid networks will lead to increased capacity and improved service quality. For this purpose, in this article, a comprehensive review of the use of artificial intelligence in the field of satellite communications will be discussed. In the field of intelligent increase of capacity, various factors such as how to configure the network, how to allocate resources such as spectrum, energy and power will be investigated with consideration of intelligent interference management. Finally, in the field of service quality improvement, factors such as how to model and intelligently predict traffic, as well as how to deal with harmful environmental conditions, will be presented.

In this research، The possibility of intelligent management of water qualitiy conditions in Common carp culture was investigated during one month. To perform the study، one intelligent instrument that is constructed by the authors was used in this research. The instrument was equipped with Program Logic Control(PLC) and sensitive sensors for control of three important water parameters including، temperature ،Oxygen and pH. Three above parameters which are crutial for Common carp culture were adjusted on optimum levels ،temperature at (25Co)،Oxygen at (8 mg / li) and pH at(7.3). In each contianer (aquariums) fingerlings 5 to 10gr were released. This instrument could be controll remotely by camera and communication equipments like mobile، telephone and internet. Three other aquariums also were prepared as control group which on them، the above parameters،where countrolled manually. They were checked three times a day during the study.The three mentioned parameters (tempruture ، O2 and pH)in the quiped containers were exmind countiusely and atumatically duiring whole period of expriments. On equipped aquariums during 31 days، 13 speciemen،out of 15 alive til end of the study. They seems to be healthy and shows a good growth،which can be considered as a result of favorate invironmental conditions (temprature،O2، pH) After 31 days period of study، the average weight of treatment fishes were reached form 5-10gr to 250±8gr. But in 3 control group ،parameters meet a great flactution،vz: tempruture(18-29ºC)، Oxygen (5-12)، and pH (5-9)، leading all control group،s speciemens being died til end of days of expriment. Result show،s that this instrument(PLC)،can successfully being used for water management of carp cuture ponds.