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68篇 您的检索式:作者名="MOHAMMAD R G"
    题名 作者 年代 出处 被引量
1Potential habitat modeling for reintroduction of three native plant species in central Iran显示文摘Potential habitat modeling of endemic species is an appropriate method to maintain biodiversity,ecosystem function and rehabilitation of rangeland ecosystems.Astragalus caragana,A.cyclophyllon and A.podolobus are endemic in Iran's rangelands and some neighboring countries.The three native species could endure environmental stresses due to their distinctive ecophysiological characteristics.They play important roles in sustainable pastures production,recreation and improvement.They suffer severe threat from many factors including;grazing,agriculture and invasive exotic species.We analyzed the potential habitat of three native plant species in central Iran basing on the grid map with the resolution of 1-km.We used inventory records from field surveys,herbarium collections and 22 environmental factors to explore the environmental influences on given species distribution by Maximum entropy(Maxent) model.Maxent is a species distribution model that uses species occurrence and environmental data for predicting potential species.The results of our study indicated species occurrence has strong correlation with environmental factors such as mean temperature of wettest season,elevation and precipitation of coldest season.We evaluated the model accuracy by AUC(area under the receiver operating characteristic curve) based on an independent test data set.AUC values indicated the high power of Maxent to create potential habitat map(AUCA.caragana=0.988,AUCA.cyclophyllon=0.927,AUCA.podolobus=0.923).It is important to consider that AUC values tend to be lower for species that have broad distribution scope,such as A.podolobus distribution.Most suitable potential habitat distributions of the three species were predicted in the western and southwestern parts of rangelands in Isfahan province.Visual comparisons of the actual distribution map of the three species with produced Maxent maps represent a good agreement.In general,the model demonstrated that the occurrence of the given species is highly probable when the elevation is between 2,200 and 3,000 m and mean temperature of wettest season less than 3°C.This model,therefore,can be applied to recognize potential sites for rangeland reclamation projects.Elham G ARDESTANI Mostafa TARKESH Mehdi BASSIRI Mohammad R VAHABI 2015Journal of Arid Land2015,7,3:5
2Design of broadband,single layer dual-band large re-flectarray using multi open loop elements显示文摘MOHAMMAD R JAFAR S NICOLAS G 2010IEEETransaction on Antennas and Propagation2010,58,9:1
3Artificial neural network applied for simultaneous analysis of mixtures of nitrophenols by conduetometrie acid-base titration 显示文摘Rounaghi G Mohammad Zadekakhki R Heidari T 2011Ind Enginee Chem Res2011,50,11:1
4The effect of replacement feeding of some protein sources with pollen on honey bee population and colony performance显示文摘MOHAMMAD R D NASER M S ABOLFAZL A G 2007Journal of Animal and Veterinary Advances2007,6,11:1
5Highly selective and sensitive chromium (Ⅲ) membrane sensors based on a new tridentate Schiff's base 显示文摘Mohammad R G Norouzi P Faridbod F 2006Analytica Chimica Acta2006,569,:1
6Investigation of process parameters on hot ring rolling by coupled thermo-mechanical 3D-FEA显示文摘AMIR H G MOHAMMAD R F ABDOL A M 2011Journal of Mechanical Engineering2011,4,4:1
7Palmitate-induced PTP1B expression is mediated by ceramide-JNK and nuclear factorκB(NF-κB)activation显示文摘Mohammad Taghvaei N Taheripak G Taghikhani M Meshkani R 2012Cell Signal2012,24,10:1
8Ultrasonic assisted grinding of Ti6A14V alloy 显示文摘MOHSEN G N MOHAMMAD R M JAVAD A 2012Annals of the CIRP2012,1,:1
9Intermolecular Interactions Between a Dye and Cationic Surfactants:Effects of Alkyl Chain, Head Group and Counterion 显示文摘Mohammad R A Soheila J Hassein G 2011Colloids Su9c A2011,3110,:1
10Distribu- tion of indole-3-acetic acid in Petunia hybrida shoot tip cuttings and relationship between auxin transport,carbo- hydrate metabolism and adventitious root formation显示文摘Amir H A Michael M Mohammad R G 2013Planta2013,238,3:1
11Probable role of beta 2-adrenergic receptor gene haplotype in high-alti- tude pulmonary oedema显示文摘Stobdan T Kumar R Mohammad G 2010Respirology2010,15,:1
12Equilibrium, kinetics and breakthrough studies for adsorption of hydrogen fluoride on sodium fluoride显示文摘Hossein T Mohammad R G 2010Chemical Engineering and Processing2010,49,4:1
13Nonalcoholic steatohepatitis:An expanded clinic entity 显示文摘Bruce R Mohammad J Chirstine G 1994Gastroenterology1994,107,:1
14Determination of Nonlinear Behavior of A Ball Joint System by Model Updating 显示文摘Mohammad R D Javad V A Sirous G 2012Journal of Constructional Steel Research2012,71,:1
15The novel cyclin-dependent kinase inhibitor flavopiridol downregulates Bcl-2 and induces growth arrest and apoptosis in chronic B-cell leukemia lines 显示文摘KONIG A SCHWARTZ G K MOHAMMAD R M 1997Blood1997,90,11:1
16Broadbandzero reflection plasmonic junctions 显示文摘MARYARM F NOSRAT G MOHAMMAD R 2012The Journal of theOptical Society of America B2012,29,7:1
17Trend anal- ysis and change point detection o{ annual and seasonal precipitation and temperature series over southwest I- ran显示文摘Mohammad Z Amit G D R H Kripalani 2014Journal of Earth System Science2014,123,2:1
18Dynamic Congestion Control Algorithm for Vehicular Ad-hoc Networks 显示文摘Mohammad R J S Rafidah M N Saied G 2013International Journal of Software Engineering and Its Applications2013,7,3:1
19Cooperative received signal strength-based sensor localization with unknown transmit powers显示文摘REZA M V MOHAMMAD R G R M BUEHRER 2013IEEE Transactions on Signal Processing2013,61,6:1
20Lead ion selective PVC membrane electrode based on 5,5'-dithiobis(2-nitrobenzoic acid)显示文摘Ahmad R Mohammad G Mojtaba S 1998Talanta1998,46,6:1
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