نتایج جستجو برای: localization economies
تعداد نتایج: 163129 فیلتر نتایج به سال:
یکی از نیازهای اساسی گره های حسگر، اطلاع از مکان خود در محیط است. گرچه روش های زیادی برای مکان یابی گره های حسگر ثابت پیشنهاد شده است، اما مسئله مکان یابی گره های متحرک حسگر مسئله ای است که تاکنون کمتر مورد مطالعه قرار گرفته است. در این پژوهش دو شیوه جدید برای مکان یابی گره های متحرک حسگر، بر مبنای روش مونت کارلو پیشنهاد شده است. روشهای ارائه شده سعی دارند با بهره گیری بهینه از اطلاعات موجود در...
At its heart, this chapter presents a story about the future of manufacturing. This story is based on predictions about the future. Specifically, that (1) increasingly firms of all sizes will have access to high performance computing capabilities that will enable sophisticated modeling and simulation, (2) additive manufacturing will become commercially competitive across a wide range of industr...
This article studies the synergy effect of entrepreneurship on China’s industrial clusters. We propose an extension to Duranton and Overman’s (2005) method which enables us to delimit industrial clusters in space. The empirical model is identified with historical measures of local entrepreneur potential in the spirit of Chinitz (1961). We find that measures of entrepreneurship contribute signif...
Several spatial econometric approaches are available to model spatially correlated disturbances in count models, but there are at present no structurally consistent count models incorporating spatial lag autocorrelation. A two-step, limited information maximum likelihood estimator is proposed to fill this gap. The estimator is developed assuming a Poisson distribution, but can be extended to ot...
Biomass can provide a reliable support for production of biofuels while contributing to sustainable management of natural resources. Many countries, including Italy, have introduced important incentive schemes to support the use of biomass for electricity, heat and transportation. This has raised considerable interest towards the use of biomass for energy generation purposes. Nonetheless, the d...
In this study, we use Stochastic Frontier analysis approach to estimate cost efficiency, economies of scale, and technological progress among Iranian banks from 1999 to 2012. The results show that there is a marked difference in cost efficiency before and after the recent financial sanctions against Iranian banking industry. Moreover, the results indicate that specialized government-owned banks...
In the present paper, we introduce the two-wavelet localization operator for the square integrable representation of a homogeneous space with respect to a relatively invariant measure. We show that it is a bounded linear operator. We investigate some properties of the two-wavelet localization operator and show that it is a compact operator and is contained in a...
Objective(s): Controversy exists about the localization of non-palpable breast lesions. In many countries, the gold standard for the diagnosis of these lesions is needle localization due to its accuracy. This study sought to compare the ultrasoundand radio-guided occult lesion localization (ROLL) as a simple method with the conventional procedures in terms of their diagnostic power. Methods: Th...
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