Portland cement structure and its major oxides and fineness

Nosrati, A.,Zandi, Y.,Shariati, M.,Khademi, K.,Aliabad, M. Darvishnezhad,Marto, A.,Mu'azu, M.A.,Ghanbari, E.,Mahdizadeh, M.B.,Shariati, A.,Khorami, M. 국제구조공학회 2018 Smart Structures and Systems, An International Jou Vol.22 No.4

Predicting the compressive strength of concrete has been considered as the initial phase across the cement production processing. The current study has focused on the integration of the concrete compressive strength in 28 days with the mix of the major oxides and fine aggregates as an experimental formula through the use of two types of Portland cement resulting the compressive strength of the concrete highly dependent on time.

Effect of Different Budding Methods and Times on Grafting Success of Walnut

Nosrati, Zia,Khadivi-Khub, Abdollah Korean Society of Horticultural Science 2014 원예과학기술지 Vol.32 No.6

Vegetative propagation of walnut is difficult compared with that of other fruit and nut species. The present study assessed three methods of grafting (patch, shield, and chip) at various periods of walnut growth and with different timings of grafting in walnut. Early May was the best time for grafting, at which time the highest success rate was obtained by the patch method (96%), followed by chip-budding (75%), while shield-grafting showed the lowest efficiency (10%). Patch-grafting was also successful (75-80%) in early August and moderately successful in mid-June (51-55%), while the shield and chip methods had no success during these two times (0.00%). Patch-grafting was more efficient and also induced better callus formation and scion growth than the other two methods. The genotypes used did not affect grafting efficiency. The best results were obtained by patch-budding in both tested genotypes. The present findings show the potential value of patch-grafting in early May as a propagation method for walnut for establishment of guidelines for propagation.

Effect of Different Budding Methods and Times on Grafting Success of Walnut

Zia Nosrati,Abdollah Khadivi-Khub 한국원예학회 2014 원예과학기술지 Vol.32 No.6

Vegetative propagation of walnut is difficult compared with that of other fruit and nut species. The present study assessed three methods of grafting (patch, shield, and chip) at various periods of walnut growth and with different timings of grafting in walnut. Early May was the best time for grafting, at which time the highest success rate was obtained by the patch method (96%), followed by chip-budding (75%), while shield-grafting showed the lowest efficiency (10%). Patch-grafting was also successful (75-80%) in early August and moderately successful in mid-June (51-55%), while the shield and chip methods had no success during these two times (0.00%). Patch-grafting was more efficient and also induced better callus formation and scion growth than the other two methods. The genotypes used did not affect grafting efficiency. The best results were obtained by patch-budding in both tested genotypes. The present findings show the potential value of patch-grafting in early May as a propagation method for walnut for establishment of guidelines for propagation.

Portland cement structure and its major oxides and fineness

A. Nosrati,Y. Zandi,M. Shariati,K. Khademi,M. Darvishnezhad Aliabad,A. Marto,M.A. Mu’azu,E. Ghanbari,M.B. Mahdizadeh,A. Shariati,M. Khorami 국제구조공학회 2018 Smart Structures and Systems, An International Jou Vol.22 No.4

Predicting the compressive strength of concrete has been considered as the initial phase across the cement production processing. The current study has focused on the integration of the concrete compressive strength in 28 days with the mix of the major oxides and fine aggregates as an experimental formula through the use of two types of Portland cement resulting the compressive strength of the concrete highly dependent on time.

Novel polymorphous aluminosilicate nano minerals: Preparation, characterization and dyes wastewater treatment

Saleh Nosrati,Kumars Seifpanahi-Shabani,Mohammad Karamoozian 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.9

Polymorphous aluminosilicate, such as Andalusite, Kyanite and Sillimanite, were prepared and characterized by XRF, XRD, FT-IR and SEM analysis. These cheap and accessible nanoparticles were used for removal of Disperse Red 177 and Disperse Blue 60 dyes. The adsorption process was held in a batch system considering the effects of major parameters consist of pH, adsorbent dosage, dye initial concentration and temperature. The obtained results show that both Freundlich and Temkin isotherms suitably fit with experimental data of adsorption of dyes in equilibrium mode. Also, the adsorption of dyes follows and matches pseudo-second-order kinetic model for Andalusite, Kyanite and Sillimanite nanoadsorbents. Thermodynamic study of dye adsorption process proves low randomness, exothermicity and spontaneous reactions. The comparison of three adsorbent efficiencies for adsorption of DR-177 and D-B-60 dyes was as: Andalusite>Sillimanite>Kyanite and Sillimanite>Kyanite>Andalusite, respectively.

Identifying, Measuring, and Ranking Social Determinants of Health for Health Promotion Interventions Targeting Informal Settlement Residents

Farhad Nosrati Nejad,Mohammad Reza Ghamari,Seyed Hossein Mohaqeqi Kamal,Seyed Saeed Tabatabaee The Korean Society for Preventive Medicine 2023 예방의학회지 Vol.56 No.4

Objectives: Considering the importance of social determinants of health (SDHs) in promoting the health of residents of informal settlements and their diversity, abundance, and breadth, this study aimed to identify, measure, and rank SDHs for health promotion interventions targeting informal settlement residents in a metropolitan area in Iran. Methods: Using a hybrid method, this study was conducted in 3 phases from 2019 to 2020. SDHs were identified by reviewing studies and using the Delphi method. To examine the SDHs among informal settlement residents, a cross-sectional analysis was conducted using researcher-made questionnaires. Multilayer perceptron analysis using an artificial neural network was used to rank the SDHs by priority. Results: Of the 96 determinants identified in the first phase of the study, 43 were examined, and 15 were identified as high-priority SDHs for use in health-promotion interventions for informal settlement residents in the study area. They included individual health literacy, nutrition, occupational factors, housing-related factors, and access to public resources. Conclusions: Since identifying and addressing SDHs could improve health justice and mitigate the poor health status of settlement residents, ranking these determinants by priority using artificial intelligence will enable policymakers to improve the health of settlement residents through interventions targeting the most important SDHs.

Effects of Teucrium polium on Insulin Resistance in Nonalcoholic Steatohepatitis

Narges Nosrati,Safiyeh Aghazadeh,Razieh Yazdanparast 사단법인약침학회 2010 Journal of Acupuncture & Meridian Studies Vol.3 No.2

Nonalcoholic fatty liver disease, the most common chronic liver disorder, is frequently associated with the clinical features of metabolic syndrome such as insulin resistance. We aimed to determine the effect of the crude and the ethyl acetate extracts of Teucrium polium on insulin resistance in rats with nonalcoholic steatohepatitis. Rats were divided into four groups. Group A was fed a normal diet for 11weeks. Nonalcoholic steatohepatitis was induced in the remaining groups using a methionine/choline deficient (MCD) diet for 8 weeks. After nonalcoholic steatohepatitis development, group B continued with receiving the MCD diet alone; group C rats were given the MCD diet along with crude extract of T. polium (equivalent to 1 g leaves powder/kg body weight/day); group D rats were given the ethyl acetate fraction of T. polium by intragastric administration for 3 weeks. MCD diet led to grade 1 liver steatosis. In group C and D, these factors abated to grade 0 in 80% of the rats. In the groups receiving the extract, lipoprotein profiles were significantly improved relative to those not receiving the extract. Also, a dramatic reduction was observed in sera alkaline phosphatase, aspartate aminotransferase and alanine aminotransferase activities. In addition, in groups C and D, an increase in the activities of liver superoxide dismutase, glutathione peroxidase and glutathione reductase enzymes were also associated with a decrease in the malondialdehyde level relative to group B. Moreover, both extracts significantly decreased plasma glucose and insulin levels along with insulin resistance. In conclusion, both extracts of T. polium could reverse the adverse effects of an MCD diet.

Optimized precipitation process for efficient and size-controlled synthesis of hydroxyapatite–chitosan nanocomposite

Attar Nosrati Sima,Alizadeh Robabeh,Ahmadi Seyed Javad,Erfani Mostafa 한국세라믹학회 2020 한국세라믹학회지 Vol.57 No.6

It is known that the physicochemical characteristics of nanocomposites strongly aff ected by synthesis route and conditions. In this study, hydroxyapatite–chitosan nanocomposite as a substance with extensive medical application has been prepared by precipitation method under controlled conditions. To evaluation of the main synthesis parameters, including mixing ratio of precursors, pH and drying condition and investigation of their eff ect on the fi nal products characteristics, a statistical design of experiments approach via Minitab 18 has been applied. For this purpose 12 sets of experimental run have been designed and performed based on various combinations of aforementioned parameters and the characteristics of the prepared samples have been elucidated by means of Fourier transformed infrared spectroscopy, X-ray diff raction, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy and the particle size analysis. The results represent the potential impact of synthesis parameters, their interaction with each other and estimation of optimum synthesis conditions. It is revealed that mean particle size of HA-CS nanocomposite reduced by increasing the content of hydroxyapatite and increment of reaction pH to values higher than 10. Also it is founded that freeze drying process, can be used as a superior drying method for the preparation of HA-CS nanocomposite with uniform particle size.

The Most Important Social Determinants of Slum Dwellers' Health: A Scoping Review

Nejad, Farhad Nosrati,Ghamari, Mohammad Reza,Kamal, Seyed Hossein Mohaqeqi,Tabatabaee, Seyed Saeed,Ganjali, Raheleh The Korean Society for Preventive Medicine 2021 Journal of Preventive Medicine and Public Health Vol.54 No.4

Objectives: Given the importance of social determinants of health in promoting the health of slum residents, this study was conducted with the aim of identifying the main dimensions and components of these determinants. Methods: This scoping review study was conducted according to the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews). A comprehensive search was performed of PubMed, ProQuest, Scopus, and Web of Science for articles conducted from 2010 to the end of 2019. Studies were selected based on inclusion criteria, with a special focus on studies dealing with the social determinants of physical and mental health or illness. Results: Thirty-three articles were selected to extract information on the social determinants of health. After reviewing the articles, 7 main dimensions (housing, socioeconomic status of the family, nutrition, neighborhood characteristics, social support and social capital, occupational factors, and health behaviors) and 87 components were extracted as social determinants of health among slum dwellers. Conclusions: This framework could be used by planners, managers, and policy-makers when making decisions affecting the health of these settlements' residents due to the common characteristics of slums around the world, especially in developing countries.

Response Surface Methodology Analysis of Anaerobic Syntrophic Degradation of Volatile Fatty Acids in an Upflow Anaerobic Sludge Bed Reactor Inoculated with Enriched Cultures

T. Amani,M. Nosrati,S.M. Mousavi 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.1

Anaerobic oxidation of volatile fatty acids (VFAs) as the key intermediates is restricted thermodynamically. Presently, enriched acetogenic and methanogenic cultures were used for syntrophic anaerobic digestion of VFAs in an upflow anaerobic sludge bed reactor fed with acetic, propionic, and butyric acids at maximum concentrations of 5.0, 3.0, and 4.0 g/L, respectively. Interactive effects of propionate, butyrate and acetate were analyzed. Hydraulic retention time (HRT) and acetate oxidizing syntrophs and methanogen (hydrogenotrophs) to syntrophic bacteria (propionate- and butyrate-oxidizing bacteria)population ratio (M/A) were investigated as key microbiological and operating variables of VFA anaerobic degradations. M/A did not affect the size distribution and had little effect on extracellular polymer contents of the granules. Granular sludge with close spatial microbial proximity enhanced syntrophic degradation of VFAs compared to other cultures, such as suspended cultures. Optimum conditions were found to be propionate = 1.93 g/L, butyrate =2.15 g/L, acetate = 2.50 g/L, HRT = 22 h, and M/A = 2.5corresponding to maximum VFA removal and biogas production rate. Results of verification experiments and predicted values from fitted correlations were in close agreement at the 95% confidence interval. Granules seemed to be smaller particles and less stable in construction with an irregular fractured surface compared to the original granules.