نتایج جستجو برای: medium low technology
تعداد نتایج: 1802047 فیلتر نتایج به سال:
This paper develops a general equilibrium model with putty-clay technology, investment irreversibility, and variable capacity utilization. Low short-run capital-labor substitutability induces the putty-clay effect of a tight link between changes in capacity and movements in employment and output. Permanent shocks to technology or factor prices generate a hump-shaped response of hours, persisten...
Objective(S): The chitosan - Fe3O4 core - shell nanoparticles were synthesized. The nanoparticles should be coated properly in the shape of core-shell, so that they remain hidden from the body's immune system after coating. Effects of different molecular weight in coating were investigated. Methods: Nanoparticles coated with low and ...
Aiming at resolving the limitation of speed regulation range sensorless control technology, a new composite strategy is proposed to realize method for permanent magnet synchronous motor (PMSM) in full range. In medium- and high-speed range, improved sliding mode observer used estimate rotor position information. zero low order avoid defects method, rotating high-frequency voltage signal injecti...
Background and purpose: Cyclophosphamide (CP) is a chemotherapy drug extensively used as an antineoplastic agent in treatment of various cancers. However, it is known to cause several adverse effects including reproductive toxicity. Achillea millefolium (AM) is a medicinal plant with potential antioxidant properties. The aim of this investigation was to evaluate the effects of different doses o...
Abstract Aiming at the application of multi-source data fusion in intelligent operations medium and low voltage distribution network system, a deep learning algorithm based on is proposed this paper. Firstly, combining stop/restart signals large number users’ digital devices with existing measurement information grid, two indicators heartbeat handshake have been constructed. Secondly, convoluti...
There are different models for mapping and evaluation of desertification condition, such as global FAO_UNEP model. There are also several models for evaluation of desertification in Iran. In this study, tow fol/owing methods was used: 1-ICD method, (Iranian Classification of Desertification). 2- MICD method, (Modified Iranian Classification of Desertification). In this research, at first, these...
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