استعرض البحوث حسب العنوان
الآن تُعرض المواد 594 -- 613 من 683
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احتسـاب كفــاءة ترســيب بـعـض منظـومـات السـيطـرة عـلى تـلوث الهـواء وبنــاء برامج حاسوبية لها
(شركة التحدي العامة, 2018)الخلاصة تختلف أجهزة السيطرة على تلوث الهواء في مبدأ عملها والعوامل المؤثرة في كفاءة أدائها، اذ تعمل كحجر تهدئة (Settling Chamber) وفق مبدأ الجاذبية، والسايكلون (Cyclone) وفق تأثير قوة الطرد المركزي، والمرسبات النسيجية (Bag ... -
Waste Water Treatment of Phosphate Complex in Alqaam City West of Iraq by Nanofiltration Membranes
(State Company for Industrial Design and Construction, 2015)In this work , poly (phenyl sulfone) (PPSU) nanofiltration composite membranes with different specifications were used to treat the waste water taken from the phosphate complex in Alqaam city west of Iraq. The objective ... -
Waste Water Treatment of Phosphate Complex in Alqaam City West of Iraq by Nanofiltration Membranes
(الشركة العامة للتصميم وتنفيذ المشاريع, 2017)Abstract In this work , poly (phenyl sulfone) (PPSU) nanofiltration composite membranes with different specifications were used to treat the waste water taken from the phosphate complex in Alqaam city west of Iraq. The ... -
Utilization of Solar Water Heaters In Cooling System
(Energy and Environment Research Center, 2015)Studying the absorption refrigeration system under modifications has been conducted in the current research. The system has been connected to solar heater to provide hot water instead of the electrical heater in the system. ... -
Upgrading of Ardhuma Silica Sand for Silicon and Silicones Industries (Pilot Plant Experiments)
(Iraq Geological Survey, 2016)To encompass the courageous results achieved by the previous laboratory and bench-scale experiments for up-grading Ardhuma silica sand and to produce sand that can be used as a raw material for Metallurgical-Silicon ... -
Upgrading of Ardhuma silica sand for silicon and silicones industries
(Iraq Geological Survey, 2018)ABSTRACT A detailed beneficiation study was conducted on samples from Ardhuma quartz sand to provide raw material for silicon production. The beneficiation includes various techniques; vibrating screening (wet&dry), ... -
Transforming of Organic Materials to Electrical Power by Means of Nonpathogenic Microorganism
(Abstract Constructing and testing of a microbial fuel cell (MFC) had been accomplished in this research. Two MFC chambers connected with salt bridge had been operated and studied using synthetic waste water and real waste water as anode chamber solution. Operating temperature and pH value were investigated by changing temperature from (25 to 30 °C) and reducing pH from (6.7 to 6.5). The results revealed that increasing operation temperature had a significant effect on reducing operation time while decreasing pH improved the measured voltage and current besides reducing operation time to just five days. The cell was tested in the presence of real waste water under the best temperature and pH, and the results proved the capability of the manufacture cell in treating such contaminate material in relatively short operation time. The COD levels for the adopted experiments revealed reduction above 60% proving the ability of the living microorganisms in digesting the used substrate producing electrical power., 2018) -
Suitability of Tellol Al-kind Clay in Mousel City for The Production of Light Weight Aggregate
(Iraqi Geological Survey, 2018)This study was carried out to assess the possible use of Tellol Al–Kind clay deposit in Naenava city for the production of lightweight aggregates. Two methods of heat treatment were tried. Iso-thermal firing was conducted ... -
Study the Characteristics of P-N Junction for Single Crystalline Silicon Solar Cell Using the LCR Meter
(Energy & Environment Research Center, 2015)The structural and AC-conductivity properties of Si/B heterojunction solar cell have been studied. The built-in voltage have been calculated as a function of frequency at the condition of reverse bias in the range of ... -
PURIFICATION OF WHITE KAOLIN (DUEKHLA DEPOSIT) BY PHYSICAL METHODS
(Iraqi Geological Survey, 2018)In this study some physical methods have been studied for beneficiating and purifying Duekhla white kaolin from its impurities (quartz, titanium and iron oxides), that affect the clay brightness and some other properties. ... -
PURIFICATION OF DUEKLA KAOLINE CLAY BY CARRIER FLOTATION
(Iraq Geological Survey, 2015)Carrier flotation was studied to upgrade raw kaoline clay of Duekhla Valley wherein anatase (titanium dioxide) represents one of the main discoloring impurities. In this study, limestone particles were used as carrier ... -
Production of Precipitated Calcium Carbonate (PCC) from Wadi Ghadaf Limestone
(Iraq Geological Survey, 2018)ABSTRACT Due to the availability of cheap and good quality limestone and the abilities to produce PCC using the carbonation process route, this study was done with a bench scale experiments. High purity limestone of ... -
PRODUCTION OF HIGH PURITY MAGNESIUM OXIDE FROM SEA BITTERN SPENT FROM NaCl PRODUCTION IN THE BASRAH SALTERN
(Iraq Geological Survey research@geosurviraq.com, 2018)In this work light and dead-burned MgO were produced from sea bittern spent after NaCl production from sea water in Al-Basrah saltern. Dead burned MgO of pure and dense form (96.8% MgO and bulk density > 3.7) was prepared, ... -
Preparation of Solid Catalyst Suitable for Biodiesel Production
(هيأة البحث والتطوير الصناعي/ مركز البحوث الكيمياوية والبتروكيمياوية, 2016)The heterogeneous esterification reaction of oleic acid becomes one of the most important reaction in the field of the production of the biodiesel from high free - fatty acid sources. NaY zeolite has been prepared from ... -
Preparation of Light Weight Tiles by Using Clays of Old Formations Naenava Governorate
(Iraq Geological Survey, 2016)According to the last technical studies of Al-kend hilles clay in Naenava governorate for the manufacture of the building material, clay sample K3S4 (which contain Quartz, Calcite, Feldspar, Montmorillonite, Kaolinite and ... -
Preparation of In2S3 Thin Film Using Thermal Evaporator Technique
(Energy & Environment Research Center, 2015)In2S3 thin film of 689 nm thickness was successfully deposited on a glass substrates using sulfurate method under vacuum in a sealed tube of amorphous indium thin film. Furthermore thin film is pre-deposited on glass with ... -
PREPARATION OF HIGH PURITYHYDRATED AND AN HYDROUSMAGNESIUM SULFATEFROM IRAQI DOLOMITE
(هيأة المسح الجيولوجي العراقية, 2015)This work refers to a process for obtaining high purity magnesium sulfate heptahydrate and anhydrous magnesium sulfate salt from Iraqi dolomite ore. The process comprises, leaching of the starting material with dilute ... -
Preparation of Adsorbent for Water and Sulfur Compounds from Local Clays (Kaolin and Bentonite)
(هيأة المسح الجيولوجي العراقية, 2015)This research studied the preparation of faujasite zeolite Y from Kaolin and Bentonite clays. To prepare zeolite Y from kaolin , two procedures were used to increase the ratio of SiO2/Al2O3in the reaction mixture: the first ... -
Preparation CLO Test (Campylobacter Like Organism ) for Detection of Helicobactor Pylori
(هيأة البحث والتطوير الصناعي/ مركز الرازي للبحوث وانتاج العدد التشخيصية الطبية, 2016)Helicobacter pylori infection is the most important reason of chronic gastritis. H. pylori is a spiral shaped, gram-negative bacterium that colonizes the human stomach. Campylobacter like organism (CLO Test) for detecting ... -
Preparation and Diagnosis of Conducting Polyaniline Doped with Copper Minutes
(هيأة البحث والتطوير الصناعي / المركز الوطني للتعبئة والتغليف, 2016)Composite of polyaniline-polyethylene-copper was prepared by using different weight percentage for copper particles of (25-75) µm . X- ray diffraction and FTIR diagnosis were done to identify the crystal structure and ...
