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Wyszukujesz frazę "Jafari, H." wg kryterium: Autor


Tytuł:
Nuclear data for the cyclotron production of 66Ga, 86Y, 76Br, 64Cu and 43Sc in PET imaging
Autorzy:
Sadeghi, M.
Enferadi, M.
Aref, M.
Jafari, H.
Powiązania:
https://bibliotekanauki.pl/articles/148630.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
production yields
excitation function
positron emitters
ALICE/ASH
TALYS-1.2
Opis:
Positron emission tomography (PET) is a powerful diagnostic tool, which provides superior spatial resolution and an opportunity to obtain quantitative information concerning distribution of radioactivity in vivo. Most interesting positron emitters for the purpose of diagnose are 64Cu, 124I, 18F, 86Y, 48V, 52Mn, 140Pr, 72As, 74As, 89Zr, 82Sr, 68Ga, 66Ga, 45Ti, 76Br and 82Rb. Aim of the presented study is to compare the calculated cross sections of several radioisotopes of positron emitters as follows 86Y, 43Sc, 64Cu, 66Ga and 76Br with incident proton energy up to 30 MeV. In this work, excitation function of positron emitters via the 86Sr(p,n)86Y, 43Ca(p,n)43Sc, 66Zn(p,n)66Ga, 64Ni(p,n)64Cu and 76Se(p,n)76Br reactions were calculated by ALICE/ASH 0.1 (GDH model and hybrid model) and TALYS-1.2 (equilibrium and pre-equilibrium) codes and compared to existing data. Requisite for optimal thicknesses of targets were obtained by the stopping and range of ions in matter (SRIM) code for each reaction.
Źródło:
Nukleonika; 2010, 55, 3; 293-302
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Simple Method for Calculating the Detonation Pressure of Ideal and Non-Ideal Explosives Containing Aluminum and Ammonium Nitrate
Autorzy:
Jafari, M.
Keshavarz, M. H.
Powiązania:
https://bibliotekanauki.pl/articles/357978.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
detonation pressure
ideal explosive
non-ideal explosive
cross-validation
Opis:
A general and simple method has been developed for calculating the detonation pressure of different kinds of ideal and non-ideal explosives containing aluminum (Al) and ammonium nitrate (AN). The new model can be applied to CHNO and CHNOFCl explosives in pure form or as mixtures as well as non-ideal mixed explosives including Al and AN. It can also be used for different plastic bonded explosives (PBXs). There is no need for any prior knowledge about the measured or calculated properties of the explosive. The only data needed are the standard enthalpy of formation and the loading density of the desired explosive. The predicted detonation pressures were compared with other predictive methods and outputs of BKWS-EOS, in both full and partial equilibrium. Different statistical parameters as well as cross validation parameters showed that the new model is precise, accurate, well-defined, and robust for predicting the detonation pressures of CHNOFCl(Al/AN) energetic materials.
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 4; 966-983
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vitro shoot proliferation of Passiflora caerulea L. via cotyledonary node and shoot tip explants
Autorzy:
Jafari, M.
Daneshvar, M.H.
Lotfi, A.
Powiązania:
https://bibliotekanauki.pl/articles/80666.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Passiflora caerulea
shoot proliferation
in vitro
acclimatization
plant growth regulator
regeneration
rooting
shoot explant
shoot multiplication
indole butyric acid
thidiazuron
cytokinin
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological and physiological traits in seedlings’ populations obtained from the hybridization of promising genotypes of quince (Cydonia oblonga Mill.)
Autorzy:
Tatari, M.
Jafari, A.
Najafi Solari, H.
Powiązania:
https://bibliotekanauki.pl/articles/1078110.pdf
Data publikacji:
2020
Wydawca:
Instytut Ogrodnictwa
Tematy:
morphological trait
physiological trait
seedling
hybridization
quince
Cydonia oblonga
annual growth
iron content
chlorophyll content
catalase activity
peroxidase activity
Opis:
Some morphological and physiological traits of seedlings in eight quince populations from seeds obtained in 2015 (350 progenies per population) were evaluated in 2017 and 2018. They resulted from open pollination of ‘Viduja’, KVD2 and KVD4 genotypes as well as from the crossings of ‘Viduja’ × KVD4, KVD2 × ‘Viduja’, KVD2 × KVD4, KVD4 × ‘Viduja’ and KVD4 × KVD2. Populations showed significant differences in some measured traits, including height and diameter of seedlings, canopy width, annual growth, leaf iron, and chlorophyll content, as well as catalase and peroxidase activities. Based on the results of descriptive statistics, a high variation coefficient was observed in canopy width, peroxidase activity, chlorophyll, and iron content traits. Results of simple correlation showed that there were significant positive correlations between leaf iron content and catalase activity as well as canopy width with both annual growth and leaf length. Cluster analysis among populations based on total traits divided the populations into four distinct groups. The role of the female parents was visible in reciprocal crosses of ‘Viduja’ × KVD4 and KVD2 × KVD4, but all populations with similar female parents were not grouped in the same clusters.
Źródło:
Journal of Horticultural Research; 2020, 28, 2; 53-60
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physical properties of walnut limbs
Autorzy:
Heydari, H.
Jafari, A.
Mobli, H.
Rafee, S.
Portahmasi, K.
Powiązania:
https://bibliotekanauki.pl/articles/24241.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Iran
bending resistance
fruit
hardness
impact resistance
measurement
mechanical property
physical property
walnut limb
walnut tree
Źródło:
International Agrophysics; 2011, 25, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Improved Simple Method for the Calculation of the Detonation Performance of CHNOFCl, Aluminized and Ammonium Nitrate Explosives
Autorzy:
Keshavarz, M. H.
Kamalvand, M.
Jafari, M.
Zamani, A.
Powiązania:
https://bibliotekanauki.pl/articles/358804.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
decomposition reaction
detonation velocity
ideal explosive
non-ideal explosive
safety
Opis:
An improved simple method is presented for calculation of the detonation velocity of CHNO and CHNOFCl explosives, as well as non-ideal explosives containing aluminum (Al) and ammonium nitrate (AN) additives. In contrast to the available complex computer codes, where the estimated detonation velocities of non-ideal explosives for equilibrium and steady state calculations show significant differences from the measured data, this simple method gives more reliable results. Suitable decomposition paths are suggested in which the partial interaction of Al with the gaseous products and the decomposition of AN are assumed for composite explosives containing Al/AN additives. The predicted detonation velocities using the new method are good compared to those from one of the well-known empirical methods and from computer codes using full and partial equilibrium of Al/AN.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 2; 381-396
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of some diets on demographic parameters of Ectomyelois ceratoniae (Zeller) (Lepidoptera:Pyralidae) in vitro
Autorzy:
Mortazavi, S.
Samih, M.A.
Ghajarieh, H.
Jafari, A.
Powiązania:
https://bibliotekanauki.pl/articles/65132.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The carob moth, Ectomyelois ceratoniae (Zeller) (Lepidoptera: Pyralidae), is a cosmopolitan species widely distributed in different habitats worldwide. This moth is a well known pest of many fruits as well as dried fruits in storage. In this study, the biological parameters of the carob moth were studied in a growth chamber under controlled conditions (30±2°C, 65±5% and 16L : 8D). The studied moths were on four diets including pistachio, and pomegranate (both are referred to as the natural diets), and semi-synthetic, and synthetic food. The results demonstrated that survival rate of the carob moth on the two natural diets was higher than the survival rate of the carob moth on the semi-synthetic, and synthetic diets (also referred to as the artificial diets). The highest and lowest amount of life expectancy (ex) were obtained for moths on the pistachio diet (38.82), and the pomegranate diet (29.32), respectively. The highest age-stage specific reproductive value (vxj) was observed for moths on the pistachio diet (181.1). The intrinsic rate of increase (r) and finite rate of increase (λ) were calculated to be highest when the pomegranate diet was used (0.091 and 1.096) and lowest when the synthetic diet was used (0.06) and (1.062). The highest amounts of net reproductive rate and mean fecundity were obtained for moths fed the pistachio diet and the lowest were for moths fed the synthetic diet. Our results also showed that the mean generation times were 48.32, 44.42, 37.19, and 42 days for moths fed synthetic food, pistachio, pomegranate, and semi-synthetic food, respectively. The outcome of this research can be used to effectively select the most useful rearing of carob moths for using them in natural pheromone traps as Integrated Pest Management programs.
Źródło:
Journal of Plant Protection Research; 2015, 55, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Solvent, Hydrogen Peroxide and Dioxide Titanium on Degradation of PCBs, Using Microwave Radiation in Order to Reduce Occupational Exposure
Autorzy:
Tajik, R.
Mohabadi, H. A.
Khavanin, A.
Jafari, A. J.
Eshrati, B.
Powiązania:
https://bibliotekanauki.pl/articles/205106.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
degradation
ethanol
microwave
transformer oil
degradacja
etanol
mikrofale
olej transformatorowy
Opis:
Polychlorinated biphenyls (PCBs) are one group of persistent organic pollutants (POPs) that are of international concern because of global distribution, persistence, and toxicity. Removal of these compounds from the environment remains a very difficult challenge because the compounds are highly hydrophobic and have very low solubility in water. A 900 W domestic microwave oven, pyrex vessel reactor, pyrex tube connector and condensing system were used in this experiment. Radiation was discontinuous and ray powers were 540, 720 and 900 W. The PCBS were analyzed by GC-ECD. The application of microwave radiation and H2O2/TiO2 agents for the degradation of polychlorinated biphenyl contaminated oil was explored in this study. PCB – contaminated oil was treated in a pyrex reactor by microwave irradiation at 2450 MHz with the addition of H2O2/TiO2. A novel grain TiO2 (GT01) was used. The determination of PCB residues in oil by gas chromatography (GC) revealed that rates of PCB decomposition were highly dependent on microwave power, exposure time, ratio to solvent with transformer oil in 3:1, the optimal amount of GT01 (0.2 g) and 0.116 mol of H2O2 were used in the study. It was suggested that microwave irradiation with the assistance of H2O2/TiO2 might be a potential technology for the degradation of PCB – contaminated oil. The experiments show that MW irradiation, H2O2 oxidant and TiO2 catalyst lead to a degradation efficiency of PCBs only in the presence of ethanol. The results showed that the addition of ethanol significantly enhanced degradation efficiency of PCBs.
Źródło:
Archives of Environmental Protection; 2014, 40, 2; 91-102
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flora diversity in burned forest areas in Dehdez, Iran
Autorzy:
Mataji, A.
Daliri, H.K.
Babaie, S.
Jafari, S.
Roshan, S.A.
Powiązania:
https://bibliotekanauki.pl/articles/38579.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
flora
diversity
burned forest area
Dehdez city
Deh Diz city zob.Dehdez city
Iran
plant geography
life form
Khuzestan province
Opis:
Flora identified within a region plays an important role in maintaining national natural reserves. Iran is one of the most important centers of plant diversity in the Old World (22% endemic species of 8000 plant species). Dehdez burned forest area is located in the southeastern Khuzestan province. The field data were obtained from 115 sample plots in a systematic random grid (20 m × 20 m). The attributes such as tree and shrub species type, the number of species and canopy coverage were recorded. Within each sample plot small and large crown diameters were measured. In order to record herbaceous species, the Whitaker’s snail plot method was applied (100 m² minimum plot area). In this study, 240 plant species were assessed and identified to 158 genera and 42 families. Asteraceae family with 33 species, Papilionaceae with 32 species, Poaceae with 29 species, Apiaceae w ith 27 s pecies a nd Lamiaceae with 18 species prevailed and constituted 57.9% of all the plants observed. Investigation of species life forms showed that Hemicryptophyte plants were most important. Chorological study showed that species found in Irano-Turanian and Common areas of Irano-Turanian and Mediterranean eruption were the most important ecological groups in the region, while other chorotypes were positioned far from the next in importance.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 1
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Note on Total Graphs
Autorzy:
Forouhandeh, S.F.
Jafari Rad, N.
Vaqari Motlagh, B.H.
Patil, H.P.
Pandiya Raj, R.
Powiązania:
https://bibliotekanauki.pl/articles/31339326.pdf
Data publikacji:
2015-08-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
total graph
central graph
middle graph
Mycielski graph
Opis:
Erratum Identification and corrections of the existing mistakes in the paper On the total graph of Mycielski graphs, central graphs and their covering numbers, Discuss. Math. Graph Theory 33 (2013) 361-371.
Źródło:
Discussiones Mathematicae Graph Theory; 2015, 35, 3; 585-587
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of radial fins on natural convection between horizontal circular and square cylinders
Autorzy:
Jafari, I.
Mahdavy-Moghadam, H.
Taeibi-Rahni, M.
Dayyan, M.
Seyyedi, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/279844.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
radial fins
natural convection
lattice Boltzmann method
horizontal annulus
Opis:
In this paper, the effects of the number and arrangement of radial fins on laminar natural co- nvection between horizontal circular and square cylinders has been investigated numerically with the lattice Boltzmann method. The Rayleigh number is varied from Ra = 10³ − 10⁶), the number of fins (N = 2 − 8) and the Prandtl number (Pr = 0.7). The local Nusselt number profiles over the outer and inner cylinders and the average Nusselt number over the top, bottom and side walls of the outer cold square cylinder are obtained. The temperature and streamline contours are also depicted to investigate the heat and fluid flow behavior inside the computational domain.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 3; 827-837
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Seed Emergence, Seedling Vigor Enhancement of Some Populations From Satureja Bachtiarica With Chemical, Mechanical and Physiological Treatment
Autorzy:
Alizadeh, M. A.
Arab, H.A.
Tabaie, R.
Nasiri, M.
Jafari, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/2199668.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
dormancy
germination
Satureja bachtiarica
vigor
Opis:
The seeds of 3 populations from Satureja bachtiarica were collected from three native vegetation areas (Simirom2, Sharkord and Yazd). The different treatments including: cold stratification, gibberlic acid (50 and 100 ppm) Potassium nitrate (0.2 and 0.4 percent). Physical scarification (sand paper), chemical scarification (Ethylic alcohol %70) and distilled water (control) were used for breaking dormancy of the seed samples. For greenhouse experiment, the seed samples were treated with treatments and then were sown in pots using randomize design with three replications. Emergence percentage, emergence speed, length of root and shoot, seedling length, root/shoot length ratio, vigor index, seedling fresh and dry weight, dry/fresh weight ratio were evaluated during 45 days of experiment. Comparing of population Semirom2 form savory of Bachtiary was higher than other population. It was concluded that effect of gibberlic acid and potassium nitrate was higher than physical scarification and chemical scarification comparing with control.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 37-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physical and hydrodynamic properties of two varieties of apple [Malus domestica Borkh L.]
Autorzy:
Kheiralipour, K.
Tabatabaeefar, A.
Mobli, H.
Rafiee, S.
Sharifi, M.
Jafari, A.
Rajabipour, A.
Powiązania:
https://bibliotekanauki.pl/articles/25635.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2008, 22, 3; 225-229
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł

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