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Wyszukujesz frazę "Ghasemi, A." wg kryterium: Autor


Tytuł:
Evaluation of seismic behavior of irregular tube buildings in tube systems
Autorzy:
Ghasemi, A. H.
Powiązania:
https://bibliotekanauki.pl/articles/103408.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
seismic behavior
irregular building
tube in tube systems
Opis:
Setbacks in the volume of a building usually arise from the demands of urban design for illumination, proportion, etc. However, in seismic events they are the cause of abrupt changes in stiffness and mass producing a concentration of stresses in the floors near the site of sudden change. In general terms, one should ensure that the transitions are as gradual as possible in order to avoid such concentration of stresses. This study is intended to investigate seismic behavior of irregular building tube in tube systems, for this purpose seismic behavior of 40-story and 60-story reinforced concrete frame building with irregular plan was evaluated, seismic behavior of irregular buildings was assessed by overall building drifts, story drifts and shear lag behavior factors.. Higher irregularities in the overall plan structure of a building increase the phenomena of story drift and shear lag phenomena. Story drift and shear lag are higher for 60-story building than for a 40-story building.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 29; 46-51
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluating organizational antifragility via fuzzy logic : the case of an Iranian company producing banknotes and security paper
Autorzy:
Ghasemi, A.
Alizadeh, M.
Powiązania:
https://bibliotekanauki.pl/articles/969063.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
antifragility
X-events
triangular fuzzy number
entropy technique
linguistic term
Euclidean distance
liczba rozmyta trójkątna
entropia
termin lingwistyczny
odległość euklidesowa
Opis:
The concept of antifragility has received much attention from researchers in recent years. Contrary to fragile systems which fail when exposed to stressors, antifragile systems prosper and improve in response to unpredictability, volatility, randomness, chaos and disturbance. The implications of antifragility goes beyond resilience or robustness. A resilient system resists stress and remains the same; while an antifragile system improves. Taleb argues that antifragility is required for dealing with events that he called black swans or X-events, which are scarce, unpredictable, and extreme events. Such events come as a surprise and have major consequences. The concept of antifragility was developed by Taleb in a socioeconomic context, not in industrial production. However, the authors think that this concept may have its greatest practical utilization when applied to industrial environments. Thus, they focused on this concept in the article aiming to investigate the level of antifragility in an organization. In order to perform this, the authors used a case study based on an Iranian manufacturer of banknotes and security paper (TAKAB). Firstly, a questionnaire was designed based on 7 criteria related to antifragility using the five-point Likert scale and a triangular fuzzy number for each linguistic term is defined. In the next phase, the weight of each component was obtained using the entropy technique. In the final stage, the Euclidean distance between the aggregated fuzzy antifragility index (FAI) and each linguistic term used during this case study was calculated. Finally, based on these results, the level of the organization’s antifragility was assessed as satisfactorily antifragile, based on the minimum Euclidean distance.
Źródło:
Operations Research and Decisions; 2017, 27, 2; 21-43
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of genetic diversity of barberry germplasm (Berberis spp.) in central regions of Iran by morphological markers
Autorzy:
Tatari, M.
Ghasemi, A.
Zeraatgar, H.
Powiązania:
https://bibliotekanauki.pl/articles/2079.pdf
Data publikacji:
2019
Wydawca:
Instytut Ogrodnictwa
Tematy:
fruit tree
barberry
Berberis
medicinal plant
germplasm
selection
morphological marker
Central Iran
Źródło:
Journal of Horticultural Research; 2019, 27, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytochemical and bioactivity diversity in the extracts from bulbs and leaves of different populations of Allium jesdianum, a valuable underutilized vegetable
Autorzy:
Ghasemi Pirbalouti, A.
Powiązania:
https://bibliotekanauki.pl/articles/12300024.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Iran
wild plant
vegetable
Yazdi onion
Allium jesdianum
endemic species
bulb
leaf
plant population
phytochemical diversity
antioxidant activity
antimicrobial activity
antioxidant agent
antimicrobial agent
useful plant
Opis:
Allium jesdianum Boiss. & Buhse (Yazdi onion) belonging the family Alliaceae, is an endemic species of Iran that grows wild in the Zagros Mountains range, southwestern Iran. The indigenous people of Iran use the leaves and bulbs of A. jesdianum for the treatment of colds and kidney problems. The bulbs and leaves of various populations of the plant were collected from the alpine regions in Chaharmahal va Bakhtiari province, southwestern Iran. The total phenolic content of ethanol extract was determined by FolinCiocalteu method, the antioxidant activity was evaluated measuring 1,1-diphenyl-2-picrylhydrazyl (DPPH), and the antibacterial activity of the extracts against four bacteria was determined by serial dilution assay. Results indicated that the total phenolic content in ethanol extracts from leaves and bulbs of A. jesdianum ranged between 27.83 to 98.23 mg GAE/g extract. A comparison of all plant extracts in the DPPH assay indicated that ethanol extracts from the populations of A. jesdianum leaves were the most effective free radical scavenging agents. The extracts indicated moderate-to-good inhibitory activities against four bacteria, especially against B. cereus. This finding suggests that the bulbs and leaves of A. jesdianum may be considered a natural source of antioxidants and antimicrobial agents.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 2; 115-122
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal design of high-rise building bundled tube systems
Autorzy:
Ghasemi, H. A.
Powiązania:
https://bibliotekanauki.pl/articles/102144.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
bundled tube
optimal design
high-rise building
shear lag
Opis:
The primary objectives of this study are to investigate the effects of varying design parameters on the tube action and shear lag behavior of a typical reinforced concrete bundled tube building, and propose optimal design approaches for similar structures. A parametric study was conducted with selected key design variables on the performance of a 41 story building. The design variables considered for the parametric study include the column depth, beam depth, column width and beam width of the moment frames. The performance of each model was assessed in terms of overall and critical (maximum) story drifts, and shear lag behavior. Overall, the effects of the column depth on the tube action and shear lag behavior were more prominent than the other member dimensions.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 96-102
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on pollination and selection of the most suitable pollinizers for commercial pear cultivars (Pyrus communis L.) in Iran
Autorzy:
Tatari, M.
Ghasemi, A.
Mousavi, A.
Bahrami, H.
Powiązania:
https://bibliotekanauki.pl/articles/1886.pdf
Data publikacji:
2017
Wydawca:
Instytut Ogrodnictwa
Źródło:
Journal of Horticultural Research; 2017, 25, 2
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accurate Prediction of the Condensed Phase (Solid or Liquid) Heat of Formation of Triazolium-based Energetic Ionic Salts at 298.15 K
Autorzy:
Jafari, M.
Davtalab, M.
Keshavarz, M. H.
Esmaeilpour, K.
Mosaviazar, A.
Ghasemi, M. A.
Amini, M.
Powiązania:
https://bibliotekanauki.pl/articles/358232.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
heat of formation
condensed phase
triazolium-based
energetic ionic salt
safety
Opis:
A novel method is introduced for the reliable prediction of the condensed phase (solid or liquid) heat of formation (Δf H θ (c)) of triazolium-based energetic ionic salts (EISs) at 298.15 K. It is based on the influence of some specific elemental compositions of cations and anions as additive parts. Two correcting functions, as non-additive quantities, are also used to adjust the first part. The coefficients of the specific elemental compositions of cations and anions in the new correlation, with a negative sign as well as a negative correcting function in the triazolium-based EISs, can decrease the value of Δf H θ (c) for the corresponding EISs. The reported Δf H θ (c) values of 57 different triazolium-based EISs were used to derive the new model. For 34 triazolium-based EISs, where the outputs of quantum mechanical methods were available, the Root Mean Squared Error (RMSE) of the new model was 156.0 kJ/mol. Meanwhile, the RMSE of complicated quantum mechanical methods is very large, i.e. 298.0 kJ/mol. The high reliability of the new model was also confirmed for a further 5 complex triazolium-based EISs as compared to the results of quantum mechanical calculations.
Źródło:
Central European Journal of Energetic Materials; 2018, 15, 3; 501-515
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical composition and insecticidal activity of essential oil from Ziziphora clinopodioides Lam. used against the Mediterranean flour moth, Ephestia kuehniella Zeller
Autorzy:
Kheirkhah, M.
Ghasemi, V.
Yazdi, A.K.
Rahban, S.
Powiązania:
https://bibliotekanauki.pl/articles/65335.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chemical composition
insecticide activity
essential oil
Ziziphora clinopodioides
Lamiaceae
Mediterranean flour moth
Ephestia kuehniella
fumigant toxicity
Opis:
The Mediterranean flour moth, Ephestia kuehniella Zeller, is a major pest of stored grain products, particularly flour. There have been major concerns over the application of conventional insecticides in stored products, which have strongly demonstrated the need for applying such alternative safe compounds as essential oils. The aim of the present study is to investigate the chemical composition and fumigant toxicity of essential oil from Ziziphora clinopodioides Lam. against the eggs, larvae, and adults of E. kuehniella. All toxicity tests were carried out under laboratory conditions set at 26±1°C and 70% relative humidity (RH). The results of gas chromatography- -mass spectrometry (GC/MS) analysis indicated that the essential oil extracted from the leaves of Z. clinopodioides, is rich in pulegone (49.4%), piperitenone (10.7%), menthone (8.9%), and 1,8-cineol (6.9%). Based on the bioassay results, the LC50 value of the tested oil was estimated to be 54.61 μl · l–1 air for larvae and 1.39 μl · l–1 air for adults. Also, it is shown that increasing the oil concentration resulted in a significant increase in oviposition deterrency as well as a considerable reduction in the egg hatching percentage. These results suggest that Z. clinopodioides oil could be a potential candidate as a fumigant for managing E. kuehniella in stored products.
Źródło:
Journal of Plant Protection Research; 2015, 55, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal and fluid analysis on effects of a nanofluid outside of a stretching cylinder with magnetic field using the Differential Quadrature Method
Autorzy:
Ghasemi, S. E.
Hatami, M.
Salarian, A.
Domairry, G.
Powiązania:
https://bibliotekanauki.pl/articles/281394.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
nanofluids
Differential Quadrature Method (DQM)
heat transfer
streching cylinder
magnetic field
Opis:
In this paper, magnetohydrodynamic flow (MHD) of a nonofluid over a stretching cylinder is investigated numerically. The Differential Quadrature Method (DQM) is applied for solving the governing equations. The influence of relevant parameters such as the magnetic parameter, the solid volume fraction of nanoparticles and the type of nanofluid on the flow, heat transfer, Nusselt number and skin friction coefficient is discussed. Also, comparison with the published results is presented. The results show that the Nusselt number increases with growth in the volume fraction coefficient and Reynolds number but decreases with the magnetic parameter.
Źródło:
Journal of Theoretical and Applied Mechanics; 2016, 54, 2; 517-528
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of TAT-signaling fusion system along with co-expression of GroEL/ES chaperones on secretory expression of somatropin
Autorzy:
Rabbani, M.
Ghasemi, R.
Bagherinejad, M.R.
Jahanian, A.
Powiązania:
https://bibliotekanauki.pl/articles/2096995.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chaperone
GroEL/ES
human growth hormone
somatropin
TAT system
Opis:
Human growth hormone (somatropin) is one of the most widely used recombinant proteins that stimulates growth, cell reproduction, and cell regulation in humans. Synthetic production of this protein normally results in low yields and inclusion body formation. To overcome these difficulties, the production of somatropin along with two common signal peptides, namely TorA and SufI, in co-expression with a cytosolic chaperone, GroEL/ES, was evaluated in the present study. The target protein and the two signal sequences (TorA and SufI) were synthesized and cloned into an expression plasmid (pET-22) by using Nde l and Xho l endonucleases. The expression vector (pGro7) containing chaperone proteins (GroES/EL) and one of the expression vectors containing the signal sequence (and the target protein) were co-expressed in the BL21 DE3 expression host. The results showed that although some of the expressed proteins exit the cytoplasm and enter the periplasmic space, there is also an accumulation of proteins (probably as inclusion body) inside the cytoplasmic area. Western blot analysis showed that the inclusion of a signal sequence in the cassette containing the target protein could help to secrete the protein in the periplasmic space and culture media when compared with control groups. The result of these experiments show that the TAT secretion system promotes transportation of the target protein out of the cytoplasm. This secretory system completes folding of the protein structure and transfers the mature protein to the periplasmic space.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 2; 101-108
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some postharvest physical properties of Iranian apricot [Prunus armeniaca L.] fruit
Autorzy:
Jannatizadeh, A.
Naderi Boldaji, M.
Fatahi, R.
Ghasemi Varnamkhasti, M.
Tabatabaeefar, A.
Powiązania:
https://bibliotekanauki.pl/articles/24986.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2008, 22, 1; 125-131
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of melon (Cucumis melo L.) genotypes aiming effective selection of parents for breeding directed at high yield under drought stress condition
Autorzy:
Naroumi Rad, M.R.
Ghasemi, M.M.
Koohpayegani, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/2126.pdf
Data publikacji:
2017
Wydawca:
Instytut Ogrodnictwa
Źródło:
Journal of Horticultural Research; 2017, 25, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of rotational speed of the drum on physical properties of granulated compost fertilizer
Autorzy:
Ghasemi, Y.
Kianmehr, M. H.
Mirzabe, A. H.
Abooali, B.
Powiązania:
https://bibliotekanauki.pl/articles/109863.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
drum granulation
compost fertilizer
drum
rotational speed
fracture force
granule size
granule mass
Opis:
Granulation is one of the fundamental operations in particulate processing which has an ancient history and a widespread use. Compost fertilizer was granulated using drum granulation method under different level of drum rotational speed. Rotational speed of the drum (ω) ranged from 40 to 60 rev min–1 (40, 45, 50, 55 and 60 rev min–1). The effect of rotational speed of the drum (ω) on some physical properties of granulated compost fertilizer including: useful granules, granules size, fracture force, mass of the granules, bulk density, angle of friction and angle of repose are investigated in the present study.Results indicated that with the increasing drum rotational speedthe percentage of useful granules, fracture force, bulk density, angle of friction and angle of reposeincrease from 69.91% to 80.88%, 34.35 N to 35.23 N, 743.23 to 765.08 kg m–3, 26.50 to 28.01º and 10.83 to 12.88º, respectively. Also the average size of granules decreases from10.15 to 7.05 mm.
Źródło:
Physicochemical Problems of Mineral Processing; 2013, 49, 2; 743-755
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of subsoiling on soil physical properties and sunflower yield under conditions of conventional tillage
Autorzy:
Heidari Soltanabadi, M.
Miranzadeh, M.
Karimi, M.
Ghasemi Varnamkhasti, M.
Hemmat, A.
Powiązania:
https://bibliotekanauki.pl/articles/26051.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2008, 22, 4; 313-317
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł

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