Volume 17, Issue 2
مرور بر اساس
ارسال های اخیر
-
Gum Tragacanth Fibers Introducing Primitive GT Fibers (RESEARCH NOTE)
(Materials and Energy Research Center, 2004-07-01)In this research, a method for producing gum tragacanth (GT) fibers is presented. Ribbon type GT of Astragalus Gummifer species were obtained from local production lands. The gum was treated with alkali to increase its ...
-
Thermodynamics of Extraction of Zn2+ from Sulfuric Acid Media with a Mixture of Dehpa and Mehpa
(Materials and Energy Research Center, 2004-07-01)Thermodynamics of extraction of Zn2+ from sulfuric acid media contacting to a mixture of DEHPA and MEHPA diluted with 80 wt% aromatic-aliphatic kerosene with a constant DEHPA to MEHPA ratio is investigated at different ...
-
Modeling of Texture and Color Froth Characteristics for Evaluation of Flotation Performance in Sarcheshmeh Copper Pilot Plant, Using Image Analysis and Neural Networks
(Materials and Energy Research Center, 2004-07-01)Texture and color appearance of froth is a discreet qualitative tool for evaluating the performance of flotation process. The structure of a froth developed on the flotation cell has a significant effect on the grade and ...
-
Studies with a Generalized Neuron Based PSS on a Multi-Machine Power System
(Materials and Energy Research Center, 2004-07-01)An artificial neural network can be used as an intelligent controller to control non-linear, dynamic system through learning. It can easily accommodate non-linearities and time dependencies. Most common multi-layer ...
-
Reliability Analysis of Redundant Repairable System with Degraded Failure
(Materials and Energy Research Center, 2004-07-01)This investigation deals with the transient analysis of the machine repair system consisting of M-operating units operating under the care of single repairman. To improve the system reliability/availability, Y warm standby ...
-
Creep Life Assessment of Primary Reformer HP40-NB Modified Steel Tube of an Ammonia Plant
(Materials and Energy Research Center, 2004-07-01)Assessment of creep damage and residual creep life of a cast HP 40 Nb Mod. Reformer tube was performed, wherein the experimental Larson–Miller diagram and area fraction of creep voids were adopted. The state of damage of ...
-
Effect of Solid-State on Load Distribution Transformer Tap-Changer on Power Quality Enhancement
(Materials and Energy Research Center, 2004-07-01)Recently electronic tap-changer has received more attention due to its quick response, better performance and simpler maintenance compared to the mechanical tap-changer. This paper presents the capability of the distribution ...
-
Robust Optimal Speed Tracking Control of a Current Sensorless Synchronous Reluctance Motor Drive using a New Sliding Mode Controller
(Materials and Energy Research Center, 2004-07-01)This paper describes the robust optimal incremental motion control of a current sensorless synchronous reluctance motor (SynRM), which can be specified by any desired speed profile. The control scheme is a combination of ...
-
Performance of Biological hydrogen Production Process from Synthesis Gas, Mass Transfer in Batch and Continuous Bioreactors
(Materials and Energy Research Center, 2004-07-01)Biological hydrogen production by anaerobic bacterium, Rhodospirillum rubrum was studied in batch and continuous bioreactors using synthesis gas (CO) as substrate. The systems were operated at ambient temperature and ...



