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Mesoscale Wind Farm Placement via Linear Optimization Constrained by Power System and Techno-economics

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Journal of Modern Power Systems and Clean Energy 2021年第2期9卷 356-366页

作者： ali Erduman bahri Uzunoglu Bedri Kekezoglu ali Durusu the Electrical Engineering Department Hakkari UniversityHakkari30000 Turkey Department of Engineering Sciences Department of Electrical EngineeringComputational and Data-enabled Science and Engineering in Energy SystemsUppsala University75121 UppsalaSweden Department of Mathematics Florida State UniversityTallahasseeFL 32310USA the Electrical Engineering Department Yildiz Technical UniversityIstanbul34220 Turkey

The objective of this study is to develop a wind farm placement and investment methodology based on a linear optimization *** problem has a major significance for the investment success for the projects of renewable energy such as wind *** this study,a mesoscale approach is adopted whereby the wind farm location is investigated in comparison with a microscale approach where the location of each individual turbine is *** study focuses on the placement of a wind farm by economical optimization constrained by the power system,wind resources,and *** optimization is introduced in this context at the power system which is constrained by wind farm planning.

关键词： Generation expansion grid integration mesoscale wind farm linear optimization wind power

Microscopic and macroscopic atomization characteristics of a pressure-swirl atomizer, injecting a viscous fuel oil

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Chinese Journal of Chemical Engineering 2020年第1期28卷 9-22页

作者： Seyed Mohammad ali najafi Pouria Mikaniki Hojat Ghassemi School of Mechanical Engineering Iran University of Science and Technology(IUST)P.O.B.16765-163TehranIran

Combustion of heavy fuels is one of the main sources of greenhouse gases, particulate emissions, ashes, NOxand SOx. Gasification is an advanced and environmentally friendly process that generates combustible and clean gas products such as hydrogen. Some entrained flow gasifiers operate with Heavy Fuel Oil(HFO) feedstock. In this application, HFO atomization is very important in determining the performance and efficiency of the *** atomization characteristics of HFO(Mazut) discharging from a pressure-swirl atomizer(PSA) are studied for different pressures difference(Δp) and temperatures in the atmospheric ambient. The investigated parameters include atomizer mass flow rate( _m), discharge coefficient(CD), spray cone angle(θ), breakup length(Lb), the unstable wavelength of undulations on the liquid sheet(λs), global and local SMD(sauter mean diameter) and size distribution of droplets. The characteristics of Mazut sheet breakup are deduced from the shadowgraph technique. The experiments on Mazut film breakup were compared with the predictions obtained from the liquid film breakup model. Validity of the theory for predicting maximum unstable wavelength was investigated for HFO(as a highly viscous liquid). A modification on the formulation of maximum unstable wavelength was presented for HFO. SMD decreases by getting far from the atomizer. The measurement for SMD and θ were compared with the available correlations. The comparisons of the available correlations with the measurements of SMD andθ show a good agreement for Ballester and Varde correlations, respectively. The results show that the experimental sizing data could be presented by Rosin-Rammler distributions very well at different pressure difference and temperatures.

关键词： Gasifier Heavy fuel oil Atomization Pressure-swirl atomizer Mazut Size distribution Wavelength Viscosity

Experimental study of a heavy fuel oil atomization by pressure-swirl injector in the application of entrained flow gasifier

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Chinese Journal of Chemical Engineering 2019年第4期27卷 765-771页

作者： Pouria Mikaniki Seyed Mohammad ali najafi Hojat Ghassemi School of Mechanical Engineering Iran University of Science and Technology

The available SMD(Sauter mean diameter) correlations on pressure-swirl injectors predict droplet sizing very different from each other, especially for heavy fuels. Also there was a lack in the literature for comparing available correlations. So an experimental study was conducted on a heavy fuel oil(HFO) spray, Mazut 380. A pressure swirl injector was designed and fabricated. The experiments for Mazut at 40℃ and 80℃ were compared with the results for water, including spray half cone angle, breakup length and mean droplet diameter,at different injection pressures. Lower spray angle, higher breakup length and larger droplets were observed for lower injection pressures and higher liquid viscosity. SMD was about 75 μm for water and about 87 μm for Mazut at 80℃. The results for droplet mean diameter were also compared with correlations from previous studies on pressure swirl atomizers. The SMD results show that for water spray, LISA method was in good agreement,also Babu and Ballester correlations were successful when high viscosity fluid was injected.

关键词： Atomization Pressure-swirl injector Mazut Size distribution Fuel Viscosity

A green and efficient oxidation of benzylic alcohols using H_2O_2 catalyzed by montmorillonite K-10 supported CoCl_2

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Chinese Chemical Letters 2008年第11期19卷 1277-1280页

作者： ali Ezabadi Ghloam Reza najafi Mohammad M.Hashemi Department of Chemistry Central Tehran BranchAzad UniversityTehranIran Department of Chemistry Science & Research BranchAzad UniversityTehranIran

Primary and secondary benzylic alcohols were oxidized to the corresponding carbonyl compounds in good to high yields by environmentally friendly and green oxidant, H2O2 catalyzed by montmorillonite K-10 supported cob... 详细信息

关键词： Grecn oxidation Hydrogcn peroxide Montmorillonite K-10 Cobalt(Ⅱ) chloride

A green and efficient deoximation using H_2O_2 catalyzed by montmorillonite-K10 supported CoCl_2

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Chinese Chemical Letters 2007年第12期18卷 1451-1454页

作者： ali Ezabadi Gholam Reza najafi Mohammed M.Hashemi Department of Chemistry Central Tehran Branch Department of Chemistry Science and Research BranchIslamic Azad UniversityTehranIran Department of Chemistry Sharif University of TechnologyP.O.Box 11365-9516TehranIran

Oximes were oxidized to the corresponding carbonyl compounds in good to high yields by environmentally friendly and green oxidant, H202 catalyzed by montmorillonite K-10 supported cobalt（Ⅱ） chloride.

关键词： Green deoximation system Hydrogen peroxide Montmorillonite K-IO Cobalt(II) chloride

Does delayed gastric emptying shorten the H pylori eradication period? A double blind clinical trial

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World Journal of Gastroenterology 2006年第39期12卷 6310-6315页

作者： Mohammad Hassan Emami Mohammad Mehdi Saberfiroozi Abbas Arj ali Reza Taghavi Kamran Bagheri-Lankarani Najaf Dehbashi Mohammad Reza Fattahi Mahvash alizadeh Mohammad Javad Kaviani Rahim bahri-najafi Bita Geramizadeh Abbas Esmaeili Gastroenterologist Isfahan University of Medical Sciences Poursina Hakim Research Institute Isfahan Iran Gastroenterologist Namazi University Hospital School of Medicine Shiraz University of Medical Sciences Isfahan Iran Gastroenterologist School of Medicine Kashan University of Medical Sciences Isfahan Iran Clinical Pharmacist Pharmaceutical School Shiraz University of Medical Sciences Shiraz Iran General Practitioner Poursina Hakim Research Institute Isfahan Iran

AIM: To evaluate the gastric emptying inhibitory effects of sugar and levodopa on H pylori eradication period. METHODS: A total of 139 consecutive patients were randomized into 6 groups. The participants with peptic ulcer disease or non-ulcer dyspepsia non-responding to other medications who were also H pylori-positive patients either with positive rapid urease test (RUT) or positive histology were included. All groups were pretreated with omeprazole for 2 d and then treated with quadruple therapy regimen (omeprazole, bismuth, tetracycline and metronidazole); all drugs were given twice daily. Groups 1 and 2 were treated for 3 d, groups 3, 4 and 5 for 7 d, and group 6 for 14 d. Groups 1 to 4 received sugar in the form of 10% sucrose syrup. Levodopa was prescribed for groups 1 and 3. Patients in groups 2 and 4 were given placebo for levodopa and groups 5 and 6 received placebos for both sugar and levodopa. Upper endoscopy and biopsies were carried out before treatment and two months after treatment. Eradication of H pylori was assessed by RUT and histology 8 wk ***: Thirty patients were excluded. Per-protocol analysis showed successful eradication in 53% in group 1, 56% in group 2, 58% in group 3, 33.3% in group 4, 28% in group 5, and 53% in group 6. Eradication rate, patient compliance and satisfaction were not significantly different between the groups. CONCLUSION: It seems that adding sugar or levodopa or both to anti H pylori eradication regimens may lead to shorter duration of treatment.

关键词： Hpylori Gastric emptying Glucose Levodopa

Situation analysis of cutaneous leishmaniasis in an endemic area,south of Iran

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Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 88-93页

作者： Mansour Nazari Saman Nazari Ahmad ali Hanafi-Bojd ali najafi Sasan Nazari Department of Medical Entomology School of MedicineHamadan University of Medical SciencesHamadanIran Medical student Students Research CenterHamadan University of Medical SciencesHamadanIran Department of Medical Entomology and Vector Control School of Public HealthTehran University of Medical SciencesTehranIran Master of Medical Entomology Health Center of Kazerun cityIran

Objective: To update current situation of the cutaneous leishmaniasis(CL) in Kazerun County,southwest of Iran and to analyze the epidemiological aspects of the disease during 2005-2015,Methods: Data on CL were obtained from the Health Center of Kazerun County,and then were analyzed and mapped using SPSS and Arc GIS 10.3,Results: A total of 700 cases of CL were recorded during the study period with an overall decreasing trend from 2005 to 2015,More than 60% of the patients were inhabitants of rural areas and males were infected more than females,Although there was not a significant difference between gender,job categories,residence and CL infection(P>0.05),age groups were significantly different(P0.05),Most of the acute lesions were found to be present on the hand,leg and face,respectively,The average CL incidence in the study area was calculated as 24.9/100 000 population,A hot spot for the disease was found in southern part of the area(P<0.05),Conclusions: This study revealed that CL is present in Kazerun country,Thus,effective monitoring and sustained suveillance system is crucial in counteracting the disease,and if possible,to eliminate it.

关键词： Cutaneous leishmaniasis Epidemiological study Southern Iran

Pharmacological activity of Mentha longifolia and its phytoconstituents

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Journal of Traditional Chinese Medicine 2017年第5期37卷 710-720页

作者： Mohammad Hosein Farzaei Roodabeh Bahramsoltani ali Ghobadi Fatemeh Farzaei Fariba najafi Medical Biology Research Center Kermanshah University of Medical Sciences Kermanshah *** Iran Pharmaceutical Sciences Research Center Kermanshah University of Medical Sciences Kermanshah *** Iran Department of Traditional Pharmacy School of Traditional Medicine Tehran University of Medical Sciences Tehran *** Iran School of Traditional Medicine Iran University of Medical Sciences Tehran *** Iran Kermanshah University of Medical Sciences Kermanshah *** Iran

Current paper reviews the pharmacological activities, therapeutic indications and phytochemicals of M. longifolia. This herb has been consumed traditionally for the treatment of various diseases, including gastrointestinal disorders, respiratory disorders, infectious diseases, inflammatory diseases, as well as menstrual disorders. In the modern era, various pharmacological activities have been confirmed for M. longifolia, such as anti-parasitic, antimicrobial, anti-insect, antimutagenic, antinociceptive, anti-inflammatory, antioxidant, keratoprotective, hepatoprotective, anti-diarrhea, and spasmolytic effects. The plant showed therapeutic benefits in irritable bowel syndrome, amenorrhea and oligomenorrhea, and oxidative stress-associated diseases as well. A vast variety of natural components such as flavonoids, phenolic acids, cinnamates, ceramides, sesquiterpenes, terpenes, and terpenoids have been suggested to be responsible for the pharmacological action of M. longifolia. These natural products can be considered as novel medicinal sources for developing new drugs. Further investigations to explore therapeutic efficacy, tolerability,and pharmaceutical properties of M. longifolia phytochemical agents are recommended.

关键词： Mentha Phytochemicals Ethnopharmacology Review

Evaluation of anti-aphthous activity of decoction of Nicotiana tabacum leaves as a mouthwash： a placebo-controlled clinical study

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Journal of Traditional Chinese Medicine 2016年第2期36卷 160-164页

作者： Siavash Vaziri Mahdi Mojarrab Mohammad Hosein Farzaei Farid najafi ali Ghobadi Department of Infectious Disease Imam Reza Hospital Kermanshah University of Medical Sciences Kermanshah *** Iran Pharmaceutical Sciences Research Center Kermanshah University of Medical Sciences Kermanshah *** Iran Pharmaceutical Sciences Research Center Kermanshah University of Medical SciencesKermanshah *** Iran Kermanshah University of Medical Sciences Kermanshah *** Iran Department of Traditional Pharmacy School of Traditional Medicine Tehran University of Medical Sciences Tehran *** Iran

OBJECTIVE: To determine the effects of decoction derived from the leaves of Nicotiana tabacum(L.)as a mouthwash on minor recurrent ***: A randomized double-blinded placebo-controlled clinical trial was conducted on 60 patients with minor recurrent aphthous. Treatment comprised of application of tobacco or placebo mouthwash(10 m L 3 times a day) for 5 days. Clinical evaluation included pain level using a visual analog scale and ulcer size on days 1, 3, and 5 were measured. Adverse effects after mouthwash application were recorded, and the oral mucosa was examined by the investigator at each ***: A total of 54 subjects with the mean age(38 ± 10) years fulfilled the study. No minor and major adverse effects were observed. In the treatment group, ulcer pain score was decreased by 79.2%and 93.8% and ulcer size was reduced by 69.1%and 92.2%(days 3 and 5, respectively), which was significantly greater than the control group(P <0.01).CONCLUSION: The decoction prepared with of Nicotiana tabacum leaves, used as mouthwash are well-tolerated and safe, and can be used for the management of recurrent aphthous.

关键词： Stomatitis aphthous Tobacco Pain Ul cer Medicine Traditional Complementary thera pies Mouthwashes