مطالب مرتبط با کلیدواژه

Emission


۱.

The Nonlinear Impact of Energy Consumption On Economic Growth and Emission in Iran, Smooth Transition Regression Model(مقاله علمی وزارت علوم)

کلیدواژه‌ها: Fossil Fuel Energy Electricity Energy economic growth Emission Smooth Transition Regression

حوزه‌های تخصصی:
تعداد بازدید : ۴۸۸ تعداد دانلود : ۲۴۶
The present study tries to find out the effect of energy consumption on economic growth and emission through applying non-linear framework, the smooth transition regression model, and threshold regression TAR by using the data from1969 to 2017. The results of empirical frameworks indicate that the economic growth is gradually affected by energy consumption and STR model demonstrates the dynamics. However, the changes in energy consumption on emission has taken place faster and the parametric changes have been more severe. In both states, there is one model which consists of two regimes. In this model, the fossil fuel energy consumption growth variable is selected as transition or threshold variable which is optimal model. The fossil fuel energy consumption variable is considered as a policy variable which in both frameworks have been selected in 12 percent level. The results of TAR model revealed that in high regime of fossil fuel consumption, the first lag of fossil fuel consumption and the logarithm of population have impact on emission and in high regime of low fossil fuel consumption, the fist lag on variable growth of fossil fuel consumption and electricity have impact on emission. Also, the results of TAR model indicated that the electricity energy consumption growth in low regime, the growth in electricity consumption and first lag investment affect the economic growth. The fossil fuel consumption in high regime, the growth variables of fossil fuel consumption and investment have impact on the economic growth.
۲.

Camera or behind Camera: Ibn al-Haitham vis-à-vis Shaykh Ishraq on Vision(مقاله علمی وزارت علوم)

نویسنده:

کلیدواژه‌ها: Alhazen Suhrawardi Vision Emission intromission

حوزه‌های تخصصی:
تعداد بازدید : ۵۱ تعداد دانلود : ۴۵
Developing the empirical method based on observation and experiment, Alhazen is considered the greatest Muslim physicist and the most significant figure in the history of optics between antiquity and the seventeenth century. Inventing a camera obscura, Alhazen rebuilt our conception of eyesight. His theory of vision was enormously prominent and much of our understanding of optics and light is based upon his groundbreaking discoveries. He began his criticism of emission by describing what happens when people are exposed to bright lights. No matter what the light source, the effect of bright lights was always the same. What this indicates to Alhazen is that light entering into the eye from an external source had some serious function in eyesight. Respecting observation, experiment and empirical method, Suhrawardi, the father of Illumination School, argues all theories of vision and rejects them just by mere reasoning. Suhrawardi validates his own Illuminationist method by scientists’ empirical method. So, I will argue, he is not to deny empirical aspect of Alhazen’s theory of vision. In an allegory, I will use the camera, representing the whole process of a human vision, while I use “beyond camera” for the embodiment that allows for the unfolding of a human soul’s position in the process of vision. What Alhazen is speaking of, we might call the process within the camera; while what Suhrawardi is speaking of, we could name the process behind the camera.