نتایج جستجو برای: unsaturated polymer

تعداد نتایج: 109327  

The current study assesses critical condition of oil dispassion, considering the unsaturated soil condition dispersity behavior for oil dispersion. The numerical model is used as a finite element method to model the oil spill pollution with two different saturated and unsaturated soil conditions chosen and their pollution dispersion results compared. Extracted results from numerical model show ...

Journal: Pollution 2017

The current study assesses critical condition of oil dispassion, considering the unsaturated soil condition dispersity behavior for oil dispersion. The numerical model is used as a finite element method to model the oil spill pollution with two different saturated and unsaturated soil conditions chosen and their pollution dispersion results compared. Extracted results from numerical model show ...

Journal: :International journal of engineering technology and management sciences 2023

In the fast-developing world, concern for environmental pollution and prevention of non- renewable non-biodegradable resources has attracted researchers seeking to develop new eco- friendly materials products based on sustainability principles. The fiber from natural sources provide indisputable advantages over synthetic reinforcement such as low cost, density, non-toxicity, comparable strength...

2015
Yujun Qi Wei Xiong Weiqing Liu Hai Fang Weidong Lu Warren Batchelor

The plate of a pultruded fiber-reinforced polymer or fiber-reinforced plastic (FRP) profile produced via a pultrusion process is likely to undergo local buckling and cracking along the fiber direction under an external load. In this study, we constructed a pultruded glass-fiber-reinforced polymer-light wood composite (PGWC) profile to explore its mechanical performance. A rectangular cross-sect...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Joon No Lee Hyeonwoo Kim Hongbing Yao Yan Chen Kayson Weng Jin Ye

Fatty acids (FAs) are essential for cell survival, yet their overaccumulation causes lipotoxicity. To prevent lipotoxicity, cells store excess FAs as triglycerides (TGs). In cultured cells TG synthesis is activated by excess unsaturated but not saturated FAs. Here, we identify Ubxd8 as a sensor for unsaturated FAs and regulator of TG synthesis. In cultured cells depleted of FAs, Ubxd8 inhibits ...

Journal: :Polymer 2021

The optical and surface-energy properties of polyethylene (PE) subjected to γ-irradiation post-radiation, high temperature, shear grinding are presented. Comparison the IR spectra initial γ-irradiated PE shows that oxygen-containing groups unsaturated bonds in polymer macromolecules formed accumulate during their radiolysis air, increasing with dose. A redistribution products radiation-chemical...

2010
Daniel L. Alge Tien-Min G. Chu

Statement of Purpose: Calcium phosphate cements are prepared by mixing calcium phosphate powder with a liquid component to form a paste that hardens over time via a dissolution-precipitation reaction. Thus, in addition to being osteoconductive and resorbable, these biomaterials have the advantageous property of being injectable. This property can be leveraged for castingbased approaches to scaf...

Journal: :acta medica iranica 0
katayoon bidad department of immunology, school of medicine, tehran university of medical sciences, tehran, iran. and immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran. shahab anari immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran. sanaz tavasoli immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran. and department of nutrition, faculty of health, tehran university of medical sciences, tehran, iran. leili nazemi department of nutrition, faculty of health, tehran university of medical sciences, tehran, iran. heshmat moayeri department of pediatric endocrinology, imam khomeini hospital, tehran university of medical sciences, tehran, iran.

dietary factors are suggested to be involved in recent increases in the prevalence of asthma. the differences in dietary intake of 23 asthmatic and 317 non-asthmatic students were investigated, who were chosen by multistage stratified cluster sampling. the dietary data were assessed by food frequency questionnaire and a 24-h recall form. total calorie and fat intake were similar. daily intake o...

Journal: : 2021

Cement manufacturing is currently responsible for one of the highest levels carbon dioxide (CO2) emissions and energy consumption in construction industry. Thus, use sustainable binder materials instead cement has become a worldwide issue. Previous studies have shown that polymers are reliable alternative to construction, while polymer concretes (PCs) seen as biggest conventional long term. In ...

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