In the past few decades, increasing growth of wind power plants causes different problems for the power quality in the grid. Normal and transient impacts of these units on the power grid clearly indicate the need to improve the quality of the electricity generated by them in the design of such systems. Improving the efficiency of the large-scale wind system is dependent on the control parameter...

We have combined recently published leptoquark results from the CDF and DØ Collaborations which yielded 95% CL lower limits on the first generation scalar lep-toquark mass of 213 GeV and 225 GeV, respectively, under assumption of 100% branching fraction of the leptoquark decay into the eq channel. The combined limit from the two experiments is 242 GeV. This is the most stringent limit on the fi...

regional input-output tables historical background goes back to 1950 when its idea was proposed by walter isard. in iran, regional accounts generation started in the fifth development plan before the islamic revolution, but these accounts have been generated only for some provinces. the generation and completion of these accounts and tables on the basis of surveying and mechanical methods or a ...

forecasting of municipal waste generation is a critical challenge for decision making and planning,because proper planning and operation of a solid waste management system is intensively affected by municipal solid waste (msw) streams analysis and accurate predictions of solid waste quantities generated. due to dynamic and complexity of solid waste management system, models by artificial intell...

this paper describes a study that starts with an analysis of typical energy demand profiles in a hospital setting followed by a case study of a combined cooling, heating, and power (cchp) generation system.cchp is an autonomous system that combines the generation of electrical, heating, and cooling energy.the driving units are two high-efficiency gas engines that produce electrical and heat ene...

Oral contraceptive (OC) use is associated with an increased risk of venous thromboembolism. Previous data reported higher thrombotic risk in women using third-generation combined OC than in those using second generation OC. The difference could be explained by differential effects of progestagens on plasma sensitivity to activated protein C (APC). The main purpose of this cross-sectional study ...

BACKGROUND Most women taking combined oral contraceptives (COCs) are satisfied with their contraceptive method. However, one of the most common reasons reported for discontinuation of combined oral contraceptives (COCs) is mood deterioration. OBJECTIVES This study aimed to compare effects of the second and third generation oral contraceptive pills on the mood of reproductive women. MATERIAL...