Download more than 74 examples of thesis, proposal and project topics about ethylene polymerization in editable WORD file format at undergraduate, graduate and doctoral levels for use and reference in research, articles, theses, student and academic projects.
Dissertation for Master's Degree in Chemistry (Applied Chemistry - Polymer) Abstract: Ethylene polymerization was successfully performed in the presence of Phillips catalyst and in the slurry phase. In the continuation of the work, the effect of some effective parameters in polymerization, including the effect of trialkylaluminum, the effect of 1-hexane comonomer, the effect of ...
Master's thesis in the field of chemical engineering (simulation and process control) abstract design of the control system for the fluidized bed reactor for the production of linear light polyethylene of the LLDPE unit of Jam Petrochemical under the license of Basel and Spherilene technology with an annual production capacity of 300,000 tons of product is one of the largest ...
Dissertation to receive master's degree in organic chemistry Keywords: Farsi: Besparash, condensation, composite, nanocomposite, anchoring Nitrogen in bonding with metals can destroy them
Dissertation Chemistry for Master's Degree Abstract Acrylic-based pressure-sensitive adhesives are more expensive than rubber-based adhesives, but they have a longer life and resistance to high temperatures, chemicals, UV rays, solvents, light, softeners, and the environment. Modification of acrylic pressure-sensitive adhesives is useful for improving adhesion properties. In ...
Master's thesis in the field of chemistry, analysis, abstract. In this research, the synthesis of polymer nanoparticles of ion template using sedimentation method and for the separation and preconcentration of nickel ions from aqueous samples is reported. Nickel template polymer nanoparticles by dissolving stoichiometric amount of nickel nitrate and ligand ...
Thesis for obtaining a master's degree in organic chemistry. Abstract: Title: Effective three-component synthesis of new 4-aryl-5-(tert-butylamino)-2-(1-methyl-1H-pyrrol-2-yl)furan-3-carbonitrile derivatives. In this research, a direct and efficient method for preparing new 4-aryl-5-aminofuran derivatives through a three-component one-pot reaction ...
Dissertation for receiving the degree of Doctor of Dentistry, Dental Materials Research Center Abstract Objective: One of the objectives of this study was to investigate the fracture resistance of the teeth coated with various crown and root restorations. Materials and methods: 60 freshly extracted human premolar teeth were selected and randomly divided into five groups of ...
Master's Thesis in Chemical Engineering Abstract of Electrochemical Analysis of Formaldehyde Formaldehyde is one of the organic chemicals that is widely used as a raw material in many industries. Industrial effluents that contain high concentrations of formaldehyde must be treated before entering the environment due to its possible carcinogenic and mutagenic risks. The purpose ...
Master's thesis in the field of chemistry, Analytical Chemistry, Abstract In this project, a molecular template polymer was prepared for the selective extraction of phenylmercury chloride. To prepare this polymer, methacrylic acid (active monomer), ethylene glycol dimethacrylate (cross-linking agent), 2,2-azobisisobutyronitrile (initiator), phenylmercury chloride (target ...
Dissertation for Master's Degree in Organic Chemistry Abstract: The new works carried out in this thesis include the condensation reaction of arylglyoxals prepared during the oxidation of acetophenones related to selenium dioxide with 1,2-diaminobenzene, 2,3-diaminomalonitrile, 2,3-diaminopyridine and 4-nitro-1,2-diaminobenzene in order to prepare quinoxalines and the ...
Master's thesis in the field of chemistry, Analytical Chemistry, Abstract In this project, a molecular template polymer was prepared for the selective extraction of furan. To prepare this polymer, methacrylic acid (functional monomer), ethylene glycol dimethacrylate (cross-linking agent), 2,2-azobisisobutyronitrile (initiator), a mixture of pyrrole (furan substitute or target ...
Dissertation for Doctorate Degree in Dentistry Abstract The purpose of this study was to compare the microleakage of adhesive total etch and self etch using three methods of Fluid filtration, dye penetration and dye extraction, as well as to determine the statistical relationship between these three methods. Materials and methods In this laboratory study, 72 extracted human ...
Master's Thesis in Polymerization Engineering Abstract In this research, the thermal and catalytic pyrolysis of four types of polymers such as heavy polyethylene and polypropylene and two styrene butadiene rubber and polybutadiene rubber in a semi-continuous stirred reactor under nitrogen gas and using HZSM-5, FCC and H-Mordenite catalysts has been investigated. In this study, ...
Master's Thesis in Chemical Engineering (Gas Orientation) Abstract Laboratory Investigation of Gas Dehumidification Using Triethylene Glycol Solution in Hollow Fiber Membrane Contactors In this study, two hollow fiber membrane contactors with different types of Polyvinylidene Fluoride (PVDF) and Polypropylene (PP) fibers have been used for gas dehumidification by Triethylene ...
Master's Thesis in Chemical Engineering, Thermodynamics and Kinetics Abstract: A major part of the final properties of the product in emulsion polymerization is determined by the particle size distribution. In this project, an accurate model based on population balance equations (zero-one model) which includes the phenomena of nucleation and particle growth has been chosen to ...
Dissertation for Master's Degree in Food Safety and Health Abstract Introduction: In this research, according to the antimicrobial property and resistance of titanium dioxide-based silver nanoparticle packages to the penetration of gases, including oxygen, the effect of these packages on the fungal flora of consumer breads was compared with common polyethylene packages. This ...
Dissertation for Master's Degree in Organic Chemistry. Summary of the research done in this thesis consists of two parts, the first part is the synthesis of the precursor of 4,5-dihydropyrrolo[1,2,3-hi]indole-1,2-dione (compound 1) and one-pot, three-component synthesis of new derivatives of spiro terecates in water-green solvent and in the presence of HMTA catalyst. The second ...
Master's thesis in the field of polymerization engineering, abstract was determined by using experimental design methods to determine the optimal feed recipe for the preparation of nitrile rubber. Initially, to determine the factors affecting the rate of polymerization, screening tests were designed according to the Plate-Boorman method, which examines a large number of factors ...
Thesis for receiving a master's degree in the field of chemical engineering, environmental orientation. Abstract: Ethylenediaminetetraacetic acid, due to its ability to solubilize and deactivate metal ions by forming a complex in the aqueous environment, has many applications, especially as a chelating agent for iron fertilizer. The synthesis of this substance is done in ...
Dissertation for Master's Degree in Chemical Engineering Abstract According to reports, heterogeneous photocatalysts are suitable for photodegradation of polluting compounds. Many semiconducting metal oxides such as: TiO2, SnO2, ZnO2, etc. can be used as photocatalysts in water splitting reactions, synthesis of organic compounds and removal of wastewater pollution. synthesized ...
Master's Thesis of Polymer Industrial Engineering Abstract Cross-linked polyethylene is one of the materials that is widely used in the field of insulation production in cables due to having suitable electrical properties and good electrical strength. Nowadays, one of the methods of optimizing the properties and changing the behavior of polymers is the use of filler particles ...
Chapter 1 1-1-Introduction: Common fluids such as water, oils and ethylene glycol, which are usually used as heat transfer media, have a limited ability in terms of thermal properties, which is the first obstacle to compress and increase the efficiency of heat exchangers. One of the ways to improve heat transfer is to add particles to the fluid. This method is used for fluids ...
Dissertation for Master of Business Administration, Financial Orientation (M.A.) Abstract Since its introduction, the RBI method has found its place at the level of international oil, gas and petrochemical companies, and many studies have been conducted in this regard. So far, few researches have been conducted in the country about risk-based assessment and management, and the ...
Dissertation to receive the master's degree ""M.S.c"" specialization: Textile chemistry and fiber science Abstract: One of the important processes in the completion of textile goods is the underhand improvement in textiles. Finishing the softener provides a desirable softness to the fabric and improves its properties, and the main goals of the softener are to reduce static ...
Thesis for Master's Degree in Chemical Engineering Today, creating a safe environment in which all harmful factors are identified, evaluated, eliminated or controlled in order to guarantee the health of people and facilities is one of the priorities of industrial management. Safety science has also been reactive like the traditional approach to safety, that is, managers did not ...
Master's thesis in the field of computer engineering (artificial intelligence) abstract of various image processing techniques are widely used in the field of dentistry. Among these applications, we can mention the identification based on dental images, the detection of dental caries, as well as the identification and examination of dental lesions, which mainly occur around the ...
Master's thesis in the field of civil engineering, structure orientation. Abstract: In this study, the effect of some effective parameters on the strength of polymer concrete based on epoxy resin, including hardener, filler, and solvent, has been investigated. Rice husk ash and broom stalk ash were used as fillers and acetone-toluene mixture with a ratio of 50-50% was used as a ...
Master's Thesis in Civil Engineering-Earthquake Abstract Using braces as a lateral resistance system in steel structures is one of the most common methods to withstand the forces caused by earthquakes. One of the weak points of this system is the compression resistance of the bracing member and its buckling as a result of reducing the member's load. Today, this problem has been ...
In order to receive a master's degree in textile technology, it is essential to know the physical and mechanical properties of carpets to produce a quality product and maintain the proper appearance. In this research, an attempt has been made to provide a model to determine the relationship between the different parameters of these characteristics, therefore, to measure these ...
Master's Thesis in the field of Chemical Engineering Abstract Investigation of parameters affecting the production of alumina gel by sol-gel method Sol-gel method is one of the common methods that is widely used to produce different nanoparticles. In this method, a solution of initiators is mixed with water in the presence of a catalyst, and hydrolysis and polymerization ...
Master's thesis in the field of chemical engineering, abstract of the design of the Driso ring base and the use of hydrocarbon solvent in the dehumidification process in Farashband refinery, water vapor is one of the most important impurities in the flow of natural gas. Usually, the water vapor itself is not a problem, but instead the liquid or solid phase that forms when the ...
Master's Thesis (M.Sc.) Direction: Process Design Abstract Currently, membranes have found a special place in different separation industries and have wide applications in different fields of separation, including liquid solutions and different gases. Membrane technology is one of the most widely used technologies in today's industry, whose field of application is wide ranging ...
Thesis for obtaining a master's degree. Abstract: The increase in environmental concerns and the progress of green chemistry processes have necessitated the replacement of homogeneous catalysts with heterogeneous ones. In this research, activated carbon was used as a suitable substrate due to its special properties. The most important of these properties are resistance in acidic ...
Master's thesis in the field: Chemical Engineering Abstract In this research, a comprehensive two-dimensional model based on the Finite Element Method (FEM) is proposed for modeling gas-solvent membrane contactors to remove carbon dioxide[1] from synthesis gas. Aqueous solution of monoethanolamine has been used as absorbent solvent stream and CO2/N2 gas mixture as gas stream. ...
Master's Thesis of Chemical Engineering Abstract In this research, the optimal absorption conditions for cationic dyes have been investigated and the removal of brilliant green dye [1] by the natural adsorbent of khakshir has been investigated. First, the effective conditions in the amount of brilliant green removal by the khakshir stem adsorbent were researched, then using the ...
Dissertation for Master's Degree in Chemical Engineering Abstract Paying attention to the issue of safety in industrial and chemical facilities is very important. According to the statistics, the amount of human, economic and environmental damages caused by industrial accidents every year in the world is very high. In addition, some of these damages are basically irreparable. ...
Dissertation for obtaining a doctorate degree in dentistry. Introduction Removing large amounts of dental tissue weakens the restored tooth. The type of restoration and composite method can be one of the influencing factors on tooth fracture resistance under occlusal forces. The purpose of this study was to investigate the effect of using new low-shrinkage composites on the ...
Dissertation for general doctor degree in dentistry Abstract Introduction: One of the common problems after the surgery of the latent third molar tooth is the development of periodontal problems, which manifests itself in the form of a pocket in the distal second molar tooth, loss of connections and lack of adequate bone formation. To solve this problem, various methods such as ...
Master's thesis in the field of mining chemistry Abstract: In this study, the effect of amide substitution on the surface of graphene oxide was studied. Two amines were chosen to change the contact surface and absorption rate. of a linear diamine such as ethylenediamine[1] and cyclic amine 6-aminouracil[2] with two different characteristics were evaluated. After the synthesis ...
Master's Thesis in the field of Nano Chemical Engineering Abstract Removal of phenol from industrial effluents using nanotechnology In this research, the photocatalytic removal of phenol as a model of organic pollutant in a fluidized bed reactor under ultraviolet and visible radiations has been studied. The effects of important parameters such as pH, catalyst concentration, ...
Thesis for master's degree in the field: chemical engineering Abstract Hard polyurethane[1] is always considered one of the most effective and practical polymers in various industries, especially the coating industry. Excellent adhesive property, curing ability at ambient temperature and corrosion resistance of this polymer are some of its remarkable features. This study was ...
Dissertation for receiving the degree of Doctor of Dentistry Abstract The long-term clinical success of implants is dependent on osseointegration and adhesion of soft tissues and epithelium to implant surfaces. Various indices including: plaque index, gingival index, bleeding during probing and bone resorption are used to evaluate the health of the soft tissues around the ...
Master's degree thesis, field: Chemical Engineering Abstract: In this research, the absorption of methyl orange dye, which is one of the most widely used dyes in the textile industry, by polypyrrole adsorbent based on polyvinyl alcohol has been investigated. The tests were performed in a discontinuous system using a colored solution with a concentration of 40 ppm. After ...
Master's thesis in the field of chemical engineering without major. Abstract: Modeling, simulation and optimization of Jam Petrochemical Check Bed Reactor for hydrogenation of 1 and 3-butadiene. Therefore, a suitable kinetic model has been selected as a basic structure for modeling the reactor, and after that the presented model has been developed in order to match the molar ...
Biomechanics Master's Thesis Abstract Nowadays, open heart surgery has become a very common procedure all over the world. For more than half a century, steel wires were used to close the chest. Now the fixation methods have changed dramatically. By examining the common methods of closing the sternum and taking into account the important parameters in the design of these systems, ...
Dissertation for obtaining a master's degree M. Sc)) Department of Chemistry - Green Synthesis of Organic Chemistry 2-phenylimidazoles boiled using ionic liquid. Imidazoles are an important group of heterocyclic compounds that have various biological and medicinal activities such as anti-hypertensive, anti-cancer, anti-HIV, anti-bacterial and pain reliever. In this thesis, new ...
Doctoral thesis in the field of chemical engineering. Abstract The study of the effective parameters in the synthesis of silver nanoparticles by the inverse microemulsion method of metallic silver nanoparticles is of interest due to their use as catalysts, antimicrobial agents and biosensors. The practical use of silver nanoparticles is highly dependent on the size distribution ...
Dissertation for receiving a master's degree in chemical engineering, advanced orientation. Abstract The limitation of heat transfer fluids in various industries due to their poor thermal conductivity has caused the improvement of the heat transfer of working fluids to be considered as a new method of advanced heat transfer. So that the idea of ??dispersing solid particles in ...
Dissertation to receive a Ph.D. in Pharmacy Persian Summary Simvastatin with the brand name Zocor is a drug that is widely used in the treatment of hypercholesterolemia. Simvastatin has a poor solubility in water which reduces its therapeutic benefit, drug solubility behavior remains one of the challenging aspects in formulation development. Considering that many drugs have ...
Dissertation for receiving a master's degree in the field of preservation and modification. Abstract In this research, the effect of combined modification of colloidal silver-hot water on the heat transfer from the hot press plates to the heart of the beech (Fagus orientalis) chipboard cake, the physical and mechanical properties of the chipboard and the chemical changes of the ...
Master's Thesis of Polymer Industry Engineering Abstract With the progress of human civilization, technology development and the ever-increasing population, the world is currently facing a problem called pollution that threatens the lives of the inhabitants of the earth. Pollution caused by the accumulation of persistent toxic compounds in soil and water, such as chemicals, ...
Dissertation for receiving a master's degree in the field of food science and engineering, specialization: food science and industry. Abstract Considering the various uses of vegetables in human nutrition, as well as their taste and usefulness in maintaining health and well-being, their importance is increasing day by day. Considering the short life after harvesting and ...
The thesis for obtaining a master's degree in the field of organic chemistry, abstract protection and deprotection of functional groups is one of the inevitable steps in the synthesis of multi-functional compounds. Selective protection of carbonyl groups is very important in modern organic chemistry. 1-Diacetates are one of the basic protective groups of the carbonyl functional ...
Master's Thesis in Polymer Science and Technology Abstract: Today, cancer is one of the most important concerns of the medical world, for which no definitive cure has been found so far. Radiation therapy is one of the methods used to control and reduce the complications of cancer. Brachytherapy is one of these radiation therapy methods in which the radiation source is placed ...
Dissertation for Master's Degree (M.Sc.) Field: Horticulture-Ornamental Plants Abstract To investigate the effect of gap and silver nanoparticles on the life of the flower and the hyphae characteristics of Alstroemeria hybrida cut flowers, a 2-factor factorial experiment based on a completely randomized design with two factors of stem end gap in 2 levels (5 cm gap and no gap) ...
Dissertation for Master's Degree (M.Sc) Abstract Chrysanthemum (Chrysanthemum morifolum L.) is one of the most important cut flowers in the world, which today ranks second in the world after roses in terms of economy and cultivation. One of the important problems of this flower is vascular blockage and disruption of the water balance. For this purpose, a study based on a ...
Dissertation for Master's Degree in Electrical-Electronic Engineering (M.Sc) Abstract Sulfur recovery process by Klaus method is one of the most common methods of separating elemental sulfur from acid gas resulting from the sweetening process in gas and oil refineries. But due to the complexity of this process and the multivariable nature of the reaction furnace and the lack of ...
Dissertation for M.Sc. Electrical Engineering - Control Abstract Considering the high consumption of petrochemical products in the world today and Iran's high potential for the development and supply of petrochemical feedstock, petrochemical complexes are of special importance. Therefore, one of the important reactions called acetylene hydrogenation has been investigated and ...
Master's thesis in the field of agricultural engineering - horticultural sciences, specialization: ornamental plants. Abstract In order to investigate the effect of sodium nitroprusside on the flowering life of rose, sunflower and lisianthus cut flowers, a study was conducted in the form of a factorial experiment based on a completely randomized design with two sodium ...
Dissertation for Master's Degree (M.Sc) Field: Horticulture Major: Ornamental Plants Abstract In order to investigate the effect of different waters on the life after harvesting of rose, chrysanthemum and gerbera cut flowers, a factorial experiment was carried out in the form of a completely randomized design in 3 replications with two factors: types of water (magnetic water, ...
Dissertation for Master's Degree in Horticulture-Fruit Science Abstract Rish Baba grape variety is one of the most popular fresh edible cultivars cultivated in Iran, but usually the pods have poor color. In this study, the effect of ring removal and ethfen treatments on the quantitative and qualitative traits of 'Rish Baba Garmez' grape variety was investigated. The experiment ...
Department: Plant Products Master's Thesis in Plant Products-Horticulture Abstract Rose (Rosa hybrida) is considered one of the most popular flowers in the world and its cut flower branch is the most used among other flowers. Due to the physiological reasons of being a rose cut flower, during its shelf life, it is highly susceptible to withering and reducing its freshness and ...
Abstract Introduction: Intravenous feeding is considered a preferred and safe method for patients hospitalized in special wards, which despite its many advantages, has complications such as respiratory aspiration. Aspiration pneumonia is responsible for causing 15-20% of hospital infections and 39% increase in costs, and it is also considered one of the ten causes of death in ...
Thesis for obtaining a master's degree in the field: Agricultural Engineering-Horticultural Sciences, specialization: Physiology and breeding of fruit trees. Abstract Enzymatic browning is the most important physiological abnormality that strongly affects the post-harvest quality and storage life of Japanese parsnip. In order to investigate the effect of distilled water and a ...
Dissertation for M.Sc., Energy Systems Engineering - One of the most important issues related to the environment in the oil, gas and petrochemical industries is the proper disposal of waste hydrocarbon gases in industrial units and complexes. One of the most common methods available for the safe disposal of these gases is burning them in flares and releasing them into the ...
Dissertation for the Master's Degree in Plant Pathology (M.Sc.) Abstract Wilt is caused by different species of Verticilium and is one of the most important diseases of cotton in most regions of the world. Among the disease-causing species, V. dahliae is the dominant species in most parts of the world. Fungus is the cause of soil disease and causes quantitative and qualitative ...
Abstract: Research in the field of heat transfer of suspensions with nanometer-sized solid particles in the base fluid has started in the last decade. Recent research in the field of nanofluids has shown that the addition of nanoparticles causes a significant increase in the heat transfer of the suspension. Another common way to improve the thermal performance of devices is to ...
Doctoral Dissertation on Energy Conversion Abstract One of the most important issues in internal combustion engines is heat transfer in them; Because almost a third of the energy produced inside the combustion chamber is removed through engine cooling. The heat transfer of internal combustion engines is important from various aspects, including the protection of materials used ...
Dissertation for Master's Degree (M.Sc.) Field: Horticulture-Ornamental Plants Abstract chrysanthemum (Dendranthema grandiflorum L.) is one of the non-flowering flowers and sensitive to vascular blockage. This study is based on a completely randomized design with 10 treatments including geranium plant essential oil in 3 levels (2, 6 and 10 cc in 600 cc of distilled water), case ...
Master's Thesis on Energy Conversion Abstract: Increasing heat transfer as well as increasing energy efficiency due to the limitation of natural resources and reducing costs has always been one of the most basic concerns of engineers and researchers. This is especially important in fluids due to the small thermal conductivity coefficient. One of the most important ways to ...
Abstract: Spondylitis is one of the diseases affecting the spine, which damages the poultry industry worldwide and causes lameness in the bird. The main purpose of this study is to investigate the common microbial factors in spondylitis disease of broiler chickens, which was done through the cultivation of necessary samples in a number of special culture environments. For this ...
Dissertation for M.Sc degree, specialization: manufacturing and production, abstract in this thesis, how to improve the properties of plastics with the help of heat treatment. First, we will talk briefly about polymers, plastics and their sub-branches and heat treatment on them, and then we will discuss the effect of annealing heat treatment on heavy polyethylene sheets that are ...