نتایج جستجو برای: no 17
تعداد نتایج: 3482951 فیلتر نتایج به سال:
Reviewer Acknowledgements for International Journal of Business and Management, Vol. 17 No. 7, 2022
توربین های گازی بعنوان سیستم های تولید قدرت در اشل صنعتی در کشورهای جهان از جایگاه ویژه ای برخوردارند. مسئله اثرات زیست محیطی محصولات احتراق این توربینها از بحث های روز مورد توجه در اشل تحقیقاتی و صنعتی می باشد. روشهای کاهش آلودگی بخصوص nox مسئله اصلی مورد مطالعه در تحقیق می باشد. در این تحقیق در ابتدا بمنظور آگاهی از محصولات احتراق تحت شرایط کاری مختلف به مدلسازی احتراق پرداخته ایم . احتراق با...
Whilst tuberculosis was first found in badgers 34 years ago it is in fact quite understandable that the question is still asked as to whether badgers do spread TB to cattle. The political discomfort that surrounds this problem and the action necessary to address it is such that the politicians have done their best to wish it away. Misinformation about the subject now almost outweighs the truths...
On one hand, the high cost of memory continues to drive demand for memory efficiency on embedded and general purpose computers. On the other hand, programmers are increasingly turning to managed languages like Java for their functionality, programmability, and reliability. Managed languages, however, are not known for their memory efficiency, creating a tension between productivity and performa...
food allergies are common health problem among children. they carry a significant risk of severe allergic reactions. these disorders are chronic conditions in which the immune system becomes hypersensitive to some food products. it is estimated that 8% of children under the age of three have a type of food allergy. the common allergenic foods include cow’s milk, wheat, peanuts, egg, soy and fis...
Contamination of the aquatic environment by EDCs has received considerable attention from scientists, government officials, and the public. E2, one of the EDCs with high estrogenic effect, has the potential to cause multiple endocrine-disrupting effects, even at small concentrations. In the present review, the toxicity of E2 to aquatic organisms was reviewed. Results of published studies show t...
This paper asks whether the income gap between rich and poor nations can be explained by multiple equilibria. We explore the quantitative implications of a simple two sector general equilibrium model that gives rise to multiplicity, and calibrate the model for a large number of countries. Under the assumptions of the model, around a quarter of the world’s economies are found to be in a low outp...
U.S. legal changes have made it easier to obtain patents on inventions that use software. Software patents have grown rapidly and now comprise 15 percent of all patents. They are acquired primarily by large manufacturing firms in industries known for strategic patenting; only 5 percent belong to software publishers. The very large increase in software patent propensity over time is not adequate...
We reconsider the issue of price discovery in spot and futures markets. We use a threshold error correction model to allow for arbitrage opportunities to have an impact on the return dynamics. We estimate the model using quote midpoints, and we modify the model to account for time-varying transaction costs. We find that a) the futures market leads in the process of price discovery and that b) t...
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