a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...

Proposed by the World Bank, in which the emphasis is on the participation of all sectors in order to achieve comprehensive development in economic, political, social and cultural fields. In this research, by using data of governance quality in 97 countries in 2000-2012, using panel data method, the effect of governance quality index and its sub-indices on the growth rate of per capita GDP is st...

With the increasingly growth of scientific documents in the Web, it is difficult to select a concerned document. A citation recommendation system receives a text and recommends documents to be cited by the text. Such recommendation helps a researcher in hitting his/her concerned texts. Based on sematic relations, this paper presents a new indicator to measure the similarity between documents an...

Reviewing the development theories in chronological order, it is clearly understood that the conceptual definition of development has changed from irrespective standpoints of human aspects, toward embodying human considerations of growth. Development indicators have advanced shoulder to shoulder with development theories, in a way to change from ‘economic development indicators’ to ‘sustainabl...