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뒤르켐의 의례이론을 통해 본 스크린쿼터제 공방과정
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Synthesis of 3-dimensional interconnected porous Na3V2(PO4)3@C composite as a high-performance dual electrode for Na-ion batteries
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HOME AND YOUTH.
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Recent progress in microalgal biomass production coupled with wastewater treatment for biofuel generation
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10-Acetamido-4-methoxytricyclo[7.3.1.02^7]trideca-2(7)^3^5-triene
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[정책제안] 지방공무원의 정치적 중립성 확보 방안
- 검색키워드
- 저자 : Javadi Zahra (검색결과 3 건)
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Vahid Vatanpour,Abbas Shockravi,Hamed Zarrabi,Zahra Nikjavan,Ali Javadi 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.30 No.-
Partially reduced graphene oxide/Ag nanocomposite (rGO/Ag) was fabricated via a green and facilemethod, from graphite oxide, AgNO3 as a precursor of Ag0, and sodium citrate as a reducing andstabilizing agent. The synthesized rGO/Ag nanocomposite was characterized by X-ray diffraction, Fouriertransform infrared spectroscopy (FT-IR) and scanning electron microscopy techniques (SEM). Theinfluence of rGO/Ag nanocomposite as a new nanofiller on the preparation of polyethersulfone (PES)mixed matrix membranes was evaluated in the cases of permeation performance, hydrophilicity, antifoulingand anti-bacterial properties. Water flux of the mixed matrix membranes was increased up to0.2 wt% rGO/Ag, reaching to 429.8 (kg/m2 h), and then reduced. The anti-bacterial activities of rGO/Agmixed matrix membranes were investigated using Gram-negative bacteria of Escherichia coli andPseudomonas aeruginosa, and Gram-positive bacteria of Staphylococcus aureus. The amount of Ag0 in thesurface of GO sheets was about 34.24 wt%. Addition of rGO/Ag nanosheets induced anti-bacterialproperties to the membranes, leading to the increase in the zone of inhibition. The flux recovery ratio(FRR) study of the membranes using bovine serum albumin (BSA) solution revealed that 0.2 wt% rGO/Agmembrane had the best fouling resistance with the FRR value of 67.2%.
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Mahpour Alireza,Farzin Iman,Baghestani Amirhossein,Ashouri Sina,Javadi Zahra,Asgari Latifeh 한국해운물류학회 2023 The Asian journal of shipping and Logistics Vol.39 No.2
The shipping industry continues to have strong growth prospects due to increased efficiency and economic liberalization. Through seaborne trade, port infrastructure and logistics impact economic growth in developing countries. This makes studying the factors affecting seaborne trade for such countries particularly important. The current paper aims at analyzing the impact of logistics, economic, and demographic variables on seaborne commodity trade between Qatar, Oman, Turkey, Pakistan, and Iran. Employing a gravity model, results show that a 1% improvement in Logistics Performance Index (LPI) consignments in the importing country can result in a 0.8% increase in total trade flows. Based on results, a 1% increase in the tariff rate reduces the value of trade by 0.4%. Furthermore, a 0.5% increase in trade is caused by the increase in population of the destination country. A sensitivity analysis also shows that logistics variables are more significant than economic and demographic variables. It can be concluded that trade policymakers in developing countries can get better results by improving logistics performance and investing on logistics infrastructure leads to more trade.
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( Alireza Ramezani ),( Maasome Pardis ),( Nasrin Rafati ),( Mohsen Kazemi Moghaddam ),( Marzieh Katibeh ),( Pooya Rostami ),( Mohammad Hossein Dehghan ),( Mohammad Ali Javadi ),( Zahra Rabbanikhah ) 대한안과학회 2012 Korean Journal of Ophthalmology Vol.26 No.2
Purpose: Epidemiologic evaluation and investigating the causes of visual impairment in any society is a matter of concern and has a direct effect on the country`s health care planning. In this study we describe causes of low vision and blindness in Iranian patients referred to rehabilitation clinics for taking vision aids. Methods: In this cross-sectional study, visual acuity was classified based on best-corrected visual acuity in the better eye according to the World Health Organization definition (blindness, visual acuity [VA]<20/400; severe visual impairment, VA<20/200-20/400; mild to moderate visual impairment, VA<20/60-20/200). The causes of blindness and low vision were determined using the 10th version of International Classification of Diseases based on the main cause in both eyes. To describe data, we used mean±SD and frequency. Results: The study included 432 patients, 65% male, with a mean age of 43.6±25.5 years (range, 3 to 92 years). Mild to moderate visual impairment, severe visual impairment and blindness were present in 122 (28.8%), 196 (46.4%) and 105 (24.8%) of the patients, respectively. The main causes of visual impairment were retinal and choroidal diseases (74.5%), optic nerve and optic tract diseases (9.8%), vitreous and globe disorders (5.3%), congenital cataract (3.1%), and glaucoma (2.6%). The distribution pattern of the causes was similar in all age subgroups. Conclusions: Diseases of the retina and choroid are the main cause of visual impairment among patients referred to an academic visual rehabilitation clinic in Iran.
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