a prototype of a straw chopper, equipped with a discharge system was designed and fabricated in the department of mechanics of agricultural machinery, university of tehran, karaj, iran. to test for the effective performance of the machine, the effects of such parameters as: drum speed (at three levels of: 400, 540, and 800 rpm), screen size (at two levels: 2.5 and 4 cm), and number of blades on...

Unlike most species, humans cooperate extensively with group members who are not closely related to them, a pattern sustained in part by punishing non-cooperators and rewarding cooperators. Because internally cooperative groups prevail over less cooperative rival groups, it is thought that violent intergroup conflict played a key role in the evolution of human cooperation. Consequently, it is p...

Hezbollah is best defined in geopolitics as the Iranian ideology proxy that aims to grow Persian footprint and gain geopolitical strategic depth region. Its role continuously requires conflicts, mainly against Saudi Arabia Israel—for resistance, ideological, purposes. Being a state within state, militia makes sovereign decisions forces Lebanon pay for consequences. This first economic study emp...

In this paper, a multi-objective optimization method is implemented by using of genetic algorithm techniques in order to determine optimum configuration of solar chimney power plant. The objective function which is simultaneously considered in the analysis is output power of the plant. Output power of the system is maximized. Design parameters of the considered plant include collector radius (R...

the infrastructure of the electricity grid and super grid system in the hitherto industrialized world was to a large extent built up in the decades following world war ii with a peak in investments around 1960-1980. this means that the flotilla of power transformers is now starting to reach projected lifetime of around 40 years. during the last couple of decades there has also been an ongoing d...

gas turbines play an important role in supplying power for the country especially in peak electricity load. the main disadvantages are the turbines, they produce large changes are a result of climate change. however, in times of peak electricity grid and at the same time warm months, can produce gas turbines under the effect of ambient temperature, the amount of reduced considerably. the method...

Hyperhidrosis is a disorder of excessive sweating beyond what is physiologically necessary for thermoregulation. Primary hyperhidrosis is localized; it can affect the axillae, palms, soles, face, and other areas and is idiopathic. The prevalence of hyperhidrosis in the United States is estimated to be 2.8% of the population, with about one-half (1.4%) of these individuals having the axillary fo...

OBJECTIVES This case report aims to help healthcare providers and methadone clinic patients to recognize one of the less recognized adverse effects of methadone, hyperhidrosis, and to suggest oxybutynin as a possible solution. METHODS A 35-year-old man on methadone maintenance therapy presented with excessive sweating, which began promptly after methadone was introduced. Urine toxicology was ...