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Search Results: 1 - 10 of 265 matches for " SOHEIL MOHAJERI-BORAZJANI "
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Vegetative characteristics of Avicennia marina on the artificial inlet
AKBAR GHASEMI,HAMID JALILVAND,SOHEIL MOHAJERI-BORAZJANI
Biodiversitas , 2012,
Abstract: The purpose of this project is attempt to ecological development of Avicennia marina in hyper saline condition. During 2001 and 2002 a restoration mangrove project " planting A. marina in artificial inlet in Bushehr Province, Iran" was carried out in Agriculture &Natural resources research center of Bushehr province in Sabkha lands. Some the vegetative characteristics of such as height, diameter and crown diameter in two aspects were recorded in 2012. To investigate physico-chemical properties of soil were taken in inside and outside of inlet and were analyzed: salinity, soil acidity, potassium, phosphorus, nitrogen, texture of soil were measured. Both of treatments were analyzed by T test in SAS Software. The result showed that a different significant between inside and outside of Inlet in soil acidity, electrical conductivity, potassium content and sand and clay percent. But were not different significant in N and P. After ten years halophyte plants such as: Salicornia herbacea and Halocnemum strobilaceum and animals such as: mudskippers were observed into this area. Site conditions have an influence on the growth of seedling, which shows a different growth in the outside and inside of artificial inlets.
Assessment of Avicennia marina Growth Characteristics on an Artificial Inlet at Bushehr, Iran
A. Ghasemi,H. Jalilvand,S. Mohajeri Borazjani
Research Journal of Soil and Water Management , 2013, DOI: 10.3923/rjswm.2013.7.12
Abstract: The purpose of this project was to asses ecological development of Avicennia marina in hyper saline condition. During 2001 and 2002 a restoration mangrove project planting A. marina in artificial inlet in Bushehr Province, Iran was carried out in Agriculture and Natural resources research center of Bushehr province in Sabkha lands. Some the vegetative characteristics of such as height, diameter and crown diameter in two aspects were recorded in 2012. To investigate physico-chemical properties of soil were taken in inside and outside of inlet and were analyzed: salinity, soil acidity, potassium, phosphorus, nitrogen, texture of soil were measured. Both of treatments were analyzed by t-test in SAS Software.
Activation Volume of Secondary Relaxation  [PDF]
Soheil Sharifi
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.26084
Abstract: Glass forming materials are characterized by a complex relaxation pattern, which evolves over several time decades. Dielectric spectroscopy has proven particularly useful for studying such scenario as it is able to monitor the dielectric dynamics of a system over a range up to 16 time decades. In this work we study effect of thermodynamic history on activation volume of secondary relaxation inside the glassy forming systems, Poly[(phenyl glycidyl ether)-co-formaldehyde], (PPGE) and 1,18-bis (p methoxyphenyl) cyclohexane (BMPC), with two different type of secondary relaxation. Our results show that at bout systems, activation volume of secondary depends to the thermodynamic history.
Dielectric spectroscopy of diglycidyl ether of bisphenol-A at glass transition temperature  [PDF]
Soheil Sharifi
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.42020
Abstract: We used broadband dielectric spectroscopy in the frequency range from 10–2 Hz up to 107 Hz and we found dynamics of the primary α- and intermolecular Johari-Goldstein (JG) β-processes are strongly correlated in diglycidyl ether of bisphenol-A over a wide temperature from 193 to 283K and pressure P range from 0.1 to 600 MPa. Analysing the temperature and pressure behavior of the α - and (JG) β-processes, a clear correlation has been found between the structural relaxation time, the Johari-Goldstein relaxation time and the dispersion of the structural relaxation. These results support the idea that the Johari-Goldstein relaxation acts as a precursor of the structural relaxation and therefore of the glass transition phenomenon.
Dielectric Spectroscopy of PVAc at Different Isobaric-Isothermal Paths  [PDF]
Soheil Sharifi
Materials Sciences and Applications (MSA) , 2012, DOI: 10.4236/msa.2012.33026
Abstract: We studied broadband dielectric spectroscopy of a glass from systems that the dynamics of the primary α- and the Johari-Goldstein (JG) β-processes are strongly correlated in Poly(vinyl acetate) over a wide temperature T and pressure P range. Analysing the temperature and pressure behaviour of the α- and (Non-JG) β-processes, a correlation hasnot been found between the structural relaxation time, the (Non-JG) β-processes relaxation time and the dispersion of the structural relaxation. These results support the idea that the (JG)-processes relaxation acts as a precursor of the structural relaxation and therefore of the glass transition phenomenon but it isnot clear relation in the (Non-JG) β-processes and structural relaxation at PVAc.
Glycosylated hemoglobin (HbA1c) levels and clinical outcomes in diabetic patients following coronary artery stenting
Seyed Kassaian, Hamidreza Goodarzynejad, Mohammad Boroumand, Mojtaba Salarifar, Farzad Masoudkabir, Mohammad Mohajeri-Tehrani, Hamidreza Pourhoseini, Saeed Sadeghian, Narges Ramezanpour, Mohammad Alidoosti, Elham Hakki, Soheil Saadat, Ebrahim Nematipour
Cardiovascular Diabetology , 2012, DOI: 10.1186/1475-2840-11-82
Abstract: We evaluated 2884 consecutive patients including 2181 non-diabetic patients and 703 diabetics who underwent coronary stenting. Diabetes mellitus was defined as the fasting blood sugar concentration ≥ 126?mg/dL, or the use of an oral hypoglycemic agent or insulin at the time of admission. Diabetic patients were categorized into two groups based on their mean HbA1c levels for three measurements (at 0, 1, and 6?months following procedure): 291 (41.4%) diabetics with good glycaemic control (HbA1c?≤?7%) and 412 (58.6%) diabetics with poor glycaemic control (HbA1c?>?7%).The adjusted risk of MACE in diabetic patients with poor glycaemic control (HbA1c?>?7%) was 2.1 times of the risk in non-diabetics (adjusted HR?=?2.1, 95% CI: 1.10 to 3.95, p?=?0.02). However, the risk of MACE in diabetics with good glycaemic control (HbA1c?≤?7%) was not significantly different from that of non-diabetics (adjusted HR?=?1.33, 95% CI: 0.38 to 4.68, p?=?0.66).Our data suggest that there is an association between good glycaemic control to obtain HbA1c levels ≤7% (both pre-procedural glycaemic control and post-procedural) with a better clinical outcome after PCI.Despite recent advances in medical management and coronary revascularization, cardiovascular disease accounts for about 75% of all hospital admissions and 80% of deaths in diabetic patients [1]. Although the introduction of drug-eluting stents has reduced the rates of restenosis and clinical events after percutaneous coronary intervention (PCI), since the diabetes mellitus has been proved to be a strong risk factor for in-stent restenosis [2-4], restenosis after stent implantation remains the “Achilles’ heel” of PCI [5], and patients with diabetes still have poorer clinical outcomes compared with non-diabetics [6-10].The higher rates of restenosis in diabetic patients might be partly explained by exaggerated neointimal proliferation after stent implantation due to hyperinsulinemic state of diabetes [11]. Glycosylated hemoglobin (HbA1c)
Light Scattering Study of Mixture of Polyethylene Glycol with C12E5 Microemulsion  [PDF]
Soheil Sharifi, Masoud Amirkhani
Soft Nanoscience Letters (SNL) , 2011, DOI: 10.4236/snl.2011.13014
Abstract: The mixture of C12E5 microemulsion with PEG have been studied by small-angle X-ray scattering and dynamic light scattering in order to determine structure and dynamic of the system. Light scattering experiment shown an exponential relaxation for pure C12E5 microemulsion that with increasing of PEG concentration in the C12E5 microemulsion, relaxation becomes non-exponential, which demonstrates that increase of cooperativity. The study structure of the system with SAXS experiment, shown with increasing of PEG concentration, the size of the droplet doesn’t change but interaction between droplets increases that have agreement with light scattering data’s.
Ratio of dielectric strength of structural and secondary relaxation close to the glass transition for PPGE and DGEBA  [PDF]
Soheil Sharifi, Nima bahreini
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.47066
Abstract: Here, dielectric spectroscopy is used in the fre- quency range from 10-2 Hz up to 107 Hz and we found dynamics of the primary α-and intermolecular Johari–Goldstein β-processes are strongly correlated in diglycidyl-ether of bis-phenol-A and poly phenyl glycidyl-ether (PPGE) over a wide temperature from 193 to 345 K and pressure P range from 0.1 to 600 MPa. In contrast with the widespread opinion of statistical independence of these processes the α-β mutual dependence is quantitatively confirmed in [1] analysing the temperature and pressure behavior of the α-and (JG) β-processes the investigation of the ratio of dielectric strength of two processes close to Tg evidence that the importance of secondary dy namics in relaxing external electric stresses increase in glass formers at high pressures with respect to that of the structural relaxation. We suggest that the thermal agitation, acting above Tg is at the basis of the observed result.
Nth-order Fuzzy Differential Equations Under Generalized Differentiability
Soheil Salahshour
Journal of Fuzzy Set Valued Analysis , 2011, DOI: 10.5899/2011/jfsva-00043
Abstract: In this paper, the multiple solutions of Nth-order fuzzy differential equations by the equivalent integral forms are considered. Also, an Existence and uniqueness theorem of solution of Nth-order fuzzy differential equations is proved under Nth-order generalized differentiability in Banach space.
Temperature Dependence of the Activation Volume of Secondary Relaxation in Glass Formers
Soheil Sharifi
ISRN Materials Science , 2011, DOI: 10.5402/2011/460751
Abstract:
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