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22篇 您的检索式:作者名="Shahsavani"
    题名 作者 年代 出处 被引量
1Monte Carlo Analytic Hierarchy Process (MAHP) approach to selection of optimum mining method显示文摘One of the most critical and complicated steps in mine design is a selection of suitable mining method based upon geological,geotechnical,geographical,safety and economical parameters.The aim of this study is developing a Monte Carlo simulation to selection the optimum mining method by using effective and major criteria and at the same time,taking subjective judgments of decision makers into consideration.Proposed approach is based on the combination of Monte Carlo simulation with conventional Analytic Hierarchy Process(AHP).Monte Carlo simulation is used to determine the confdence level of each alternative’s score,is calculated by AHP,with the respect to the variance of decision makers’opinion.The proposed method is applied for Jajarm Bauxite Mine in Iran and eventually the most appropriate mining methods for this mine are ranked.Ataei Mohammad Shahsavany Hashem Mikaeil Reza 2013International Journal of Mining Science and Technology2013,23,4:8
2Comparison of Artificial Neural Networks,Geographically Weighted Regression and Cokriging Methods for Predicting the Spatial Distribution of Soil Macronutrients(N,P,and K)显示文摘Soil macronutrients(i.e. nitrogen(N), phosphorus(P), and potassium(K)) are important soils components and knowing the spatial distribution of these parameters are necessary at precision agriculture. The purpose of this study was to evaluate the feasibility of different methods such as artificial neural networks(ANN) and two geostatistical methods(geographically weighted regression(GWR) and cokriging(CK)) to estimate N, P and K contents. For this purpose, soil samples were taken from topsoil(0–30 cm) at 106 points and analyzed for their chemical and physical parameters. These data were divided into calibration(n = 84) and validation(n = 22). Chemical and physical variables including clay, p H and organic carbon(OC) were used as auxiliary soil variables to estimate the N, P and K contents. Results showed that the ANN model(with coefficient of determination R^2 = 0.922 and root mean square error RMSE = 0.0079%) was more accurate compared to the CK model(with R^2 = 0.612 and RMSE = 0.0094%), and the GWR model(with R^2 = 0.872 and RMSE = 0.0089%) to estimate the N variable. The ANN model estimated the P with the RMSE of 3.630 ppm, which was respectively 28.93% and 20.00% less than the RMSE of 4.680 ppm and 4.357 ppm from the CK and GWR models. The estimated K by CK, GWR and ANN models have the RMSE of 76.794 ppm, 75.790 ppm and 52.484 ppm. Results indicated that the performance of the CK model for estimation of macro nutrients(N, P and K) was slightly lower than the GWR model. Also, the accuracy of the ANN model was higher than CK and GWR models, which proved to be more effective and reliable methods for estimating macro nutrients.Samad EMAMGHOLIZADEH Shahin SHAHSAVANI Mohamad Amin ESLAMI 2017Chinese Geographical Science2017,27,5:5
3Differentiation of bone marrow-derived mesenchymal stem cells into hepatocyte- like cells on nanofibers and their transplantation into a carbon tetrachloride-induced liver fibrosis model 显示文摘Piryaei A Valojerdi M R Shahsavani M 2011Stem Cell Rev2011,7,1:1
4Variance-based sen-sitivity analysis of model outputs using surrogate mod-els显示文摘SHAHSAVANI D GRIMVALL A 2011Environmental Modelling & Software2011,26,6:1
5Variance-Based Sensitivi- ty Analysis of Model Outputs Using Surrogate Models显示文摘Shahsavani D Grimvall A 2011Environmental Modelling & Software2011,26,6:1
6Differentiation of bone marrow-derived mesenchymal stem cells into hepatocytelike cells on nanofiber and their transplantation into a carbon tetrachloride-induced liver fibrosis model显示文摘Piryaei A Valojerdi MR Shahsavani M 2011Stem Cell Rev2011,7,1:1
7The effect of plant growth promoting rhizobacteria (PGPR) on germination, seedling growth and yield of maize显示文摘Gholami A Shahsavani S Nezarat S 2009International Journal of Biological and Life Sciences2009,5,1:1
8Mesenchymal stem cell infusion therapy in a carbon tetrachloride-in- duced liver fibrosis model affects matrix metalloproteinase expression显示文摘Vahideh Rabani Mansoureh Shahsavani Marzieh Gharavit 2010Cell Biology Imemational2010,34,:1
9Geochemical Aspects of Hypogene Hydrothermal Alteration Zones in the Chol-qeshlaghi Area, NW Iran: Constrains on REEs显示文摘Chol-qeshlaghi altered area lies in the northwestern part of the post-collisional Urumieh-Dokhtar magmatic arc, NW Iran. Pervasive silicic, argillic, phyllic and propylitic altered zones appears to be intimately affiliated to the fluids derivative of upper Oligocene Khankandi granodiorite. This paper is dedicated to the identification of geochemical characteristics of hydrothermal alterations, focusing on the determination of the mass gains and losses of REEs, to gain significant insights regarding the chemical exchanges prevailed between the host rocks and hydrothermal fluids. The low pH and high activity of SO4-2 ligands in silicic alteration fluids, resulting in depletion of entire REEs. Decreasing of LREEs appeared in argillic zone may attributed to reduce in adsorption ability of clay minerals in low pH;whereas HREEs enrichment in phyllic zone was inclined to put it down to the abundance of sericite(± Fe oxides). A significant reduction of Eu/Eu* ratio in silicic zone can be attributed to negligible sulfides and clay minerals as some effective agents in adsorption of released Eu+2. Factors such as changes in pH, the abundance of absorptive neomorph mineral phases, activity of ligands play an important role in controlling the distribution and concentration of REEs in Chol-qeshlaghi alteration system.Kamal SIAHCHESHM Mohammad SHAHSAVANI BAMI 2020Acta Geologica Sinica(English Edition)2020,94,3:1
10The detection of disseminated tumor cells in bone marrow and peripheral blood of gastric cancer patients by multimarker (CEA, CK20, TFF1 and MUC2) quantitative real-time PCR显示文摘Dardaei L Shahsavani R Ghavamzadeh A 2011Clin Biochem2011,44,4:1
11Characterization of ionic composition of TSP and PM10 during the Middle Eastern Dust (MED) storms in Ahvaz, Iran 显示文摘Abbas Shahsavani Kazem Naddafi Nematollah Jaafarzadeh Haghighifard 2012Environmental Monitoring and Assessment2012,184,11:1
12Combination of graphene oxide-based solid phase extraction and electro membrane extraction for the preconcentration of chlorophenoxy acid herbicides in environmental samples 显示文摘Tabani H Fakhari A R Shahsavani A 2013Journal of Chromatography A2013,1300,1:1
13The detection of disseminated tumor cells in bone marrow and peripheral blood of gastric cancer patients by multimarker (CEA, CK20, TFF1 and MUC2) quantitative real-time PCR显示文摘L. Dardaei R. Shahsavani A. Ghavamzadeh M. Behmanesh E. Aslankoohi K. Alimoghaddam S.H. Ghaffari 2010Clinical Biochemistry2010,,4:1
14An adaptive design and interpolation technique for extracting highly nonlinear response surfaces from deterministic models显示文摘Shahsavani D Grimvall A 2009Reliability Engineering & System Safety2009,94,7:1
15The detection of dis- seminated tumor cells in bone marrow and peripheral blood of gastric cancer patients by multimarker( CEA, CK20, TFF1 and MUC2 ) quanti- tative real-time PCR显示文摘Dardaei L Shahsavani R Ghavamzadeh A 2011Clin Biochem2011,44,4:1
16The detection of disseminated tumor cells in bone marrow and peripheral blood of gastric cancer patients by muhimarker(CEA,CK20,TFF1 and MUC2) quantitative real-time PCR显示文摘Dardaei L Shahsavani R Ghavamzadeh A 0,,04:1
17Mesenchymalstem cell infusion therapy in a carbon tetrachloride-inducedliver fibrosis model affects matrix metalloproteinaseexpression显示文摘Rabani V Shahsavani M Gharavi M 0,,06:1
18Reference Intervals for Serum Immunoglobulins IgG, IgA, IgM and Complements C3 and C4 in Iranian Healthy Children显示文摘Kardar G Oraei M Shahsavani M 2012Iran J Public Health2012,41,:1
19Differentiation of human embryonic stem cells into functional hepatocyte-like cells in a serum-free adherent culture condition显示文摘Baharvand H Hashemi SM Shahsavani M 2008Differentiation2008,76,5:1
20Combination of graphene oxide-based solid phase extraction and electro membrane extraction for the preconcentration of chlorophenoxy acid herbicides in environmental samples显示文摘Tabani H Fakhari A R Shahsavani A 2013J Chromatogr A2013,1300,26:1
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