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109篇 您的检索式:作者名="Lashkari"
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1Sublethal effects of imidacloprid and pymetrozine on population growth parameters of cabbage aphid, Brevicoryne brassicae on rapeseed, Brassica napus L.显示文摘菜蚜的人口生长参数上的 imidacloprid 和 pymetrozine 的效率, Brevicoryne brassicae L。( Homoptera:Aphididae ) 被叶剧降方法用人口统计的毒物学决定。起初,生物鉴定测试被执行。为 imidacloprid 和 pymetrozine 的 LC_(50 ) 价值和置信界限是 1.61 x 10 ^(-5) mol/L (0.74 x 10 ^(-5)-2.66 x10^(-5)) 和 2.14 x 10 ^(-4) mol/L (1.24 x 10 ^(-4)-3.40 x 10 ^(-4)), 分别地。在菜蚜的人口生长参数上评估二杀虫药剂的尚不致命的效果, imidacloprid 和 pymetrozine 的 LC_(30 ) 集中在 5 mol/L 和 30 mol/L 被使用。实验在 20 ±在一个孵卵器被执行 1 ℃, 60% ± 5% RH 并且 16:8 (L:D ) canolaseedlings 上的光周期, Brassica 马来麝 L。var。“ PF ”。网肥沃率在两 insecticide-treatedpopulations 减少了。增加(r_m ) 的内在的率比在控制在 imidacloprid 和 pymetrozine 处理是更低的。内在的出生率也在对待的人口减少了。处于对待的人口的内在的死亡率有相对增加。吝啬的产生时间和倍增时间在比在控制与杀虫药剂对待的人口也是更低的。在作为与控制相比每女性复制的美女的平均数字有可观的减小。在控制的女成年人的平均长寿与与 imidacloprid 和 pymetrozine 对待的那些显著地不同。然而,在在二张对待杀虫药剂的人口之间的蚜虫生活桌子参数没有重要差别(P > 0.01 ) 。MOHAMMAD REZA LASHKARI AHAD SAHRAGARD MOHAMMAD GHADAMYARI 2007Insect Science2007,14,3:18
2基于无人机平台多模态数据融合的小麦产量估算研究显示文摘作物产量估测关系到人民生活质量和国家粮食安全问题,在田块尺度下及时准确估算产量,对于农事操作管理、收获、销售及种植计划制定均具有重要意义。选择地势起伏及空间差异较大的农田为研究区,利用低空无人机遥感平台搭载多光谱相机、热红外相机和RGB相机,同步获取小麦关键生育时期的无人机遥感影像,并提取光谱反射率、热红外温度和数字高程信息。首先统计不同地形特征下遥感参数和生长指标的空间变异情况,分析植被指数和温度参数与小麦产量的相关性,然后利用多元线性回归(multiple linear regression,MLR)、偏最小二乘回归(partial least squares regression,PLSR)、支持向量机回归(support vector machine regression,SVR)和随机森林回归(random forest regression,RFR)4种机器学习方法以单模态数据和多模态遥感信息融合2种方式进行建模,比较单模态数据和多模态数据融合的产量估测能力。结果表明,坡度是影响作物生长和产量的重要因子,3个生育期内,不同坡度等级下遥感参数差异明显,土壤含水量、植株含水量和地上部生物量与坡度的相关性均达显著水平,植被指数和温度参数与产量的相关性均达显著水平。依据与产量的相关性,筛选7个植被指数(NDVI、GNDVI、EVI2、OSAVI、SAVI、NDRE、WDRVI)和2个温度参数(NRCT、CTD)作为模型输入变量,对于单模态数据而言,对产量的估算效应为植被指数>温度参数,以灌浆期植被指数的RFR模型效果最好(R2=0.724,RMSE=614.72 kg hm^(-2),MAE=478.08 kg hm^(-2));对于双模态数据融合来说,在植被指数基础上融入冠层温度参数表现最好,开花期RFR模型效果进一步提高(R2=0.865,RMSE=440.73 kg hm^(-2),MAE=374.86 kg hm^(-2));在双模态数据基础上引入坡度信息进行三模态数据融合,其产量估算效果明显优于单模态和双模态数据融合,其中以开花期植被指数、温度参数和坡度信息融合的RFR估算效果最好(R2=0.893,RMSE=420.06 kg hm^(-2),MAE=352.69 kg hm^(-2)),模型验证效果较好(R2=0.892,RMSE=423.55 kg hm^(-2),MAE=334.43 kg hm^(-2))。可见,在本试验条件下通过引入地形因子,结合随机森林回归算法将多模态数据有效融合,可充分发挥不同遥感信息源之间互补协同作用,有效提高了产量估算模型的精度与稳定性,为作物生长监测及产量估算提供思路参考和方法支持。张少华 段剑钊 贺利 井宇航 Urs Christoph Schulthess Azam Lashkari 郭天财 王永华 冯伟 2022作物学报2022,48,7:4
3The implication of rheology in semi-solid metal processes: An overview显示文摘Omid Lashkari Reza Ghomashchi 2006Journal of Materials Processing Tech2006,,1:2
4Hepatocyte growth factor receptor in human RPE cells: implications in proliferative vitreoretinopathy显示文摘Lashkari K Rahimi N Kazlauskas A 1999Invest Ophthalmol Vis Sci1999,40,1:2
5Hepatoeyte growth factor receptor in human RPE cells:implication in proliferative vitreoretinopathy 显示文摘Lashkari K Rabimi N Kazlauskas A 1999Invest Ophthalmol Vis Sei1999,40,:1
6The implication of rheology in semi-solid metal processes: An overview显示文摘Omid Lashkari Reza Ghomashchi 2006Journal of Materials Processing Tech2006,,1:1
7Quantitative phenotype analysis of yeast deletion mutants using a highly parallel molecular bar-coding strategy 显示文摘 Lashkari DA Morris D 1996Nature Genet1996,14,4:1
8Non-functioning pituitary adenoma:immunohistochemical analysis of 85 cases显示文摘Mahta A Haghpanah V Lashkari A 2007Folia Neuropathol2007,45,2:1
9The implication of rheology in semi-solid metal process: An overview 显示文摘LASHKARI O GHOMASHCHI R 2007Journal of Material Processing Technology2007,182,13:1
10A simple plasticity model for prediction of non-coaxial flow of sand显示文摘LASHKARI A LATIFI M 2007Mechanics Research Communications2007,34,2:1
11A non-coaxial constitutive model for sand deformation under rotation of principal stress axes显示文摘LASHKARI A LATIFI M 2008Int J Numer Anal Meh Geomech2008,32,9:1
12Adsorptive separation of La(Ⅲ)from aqueous solution via the synthesized[Zn(bim)_(2)(bdc)]_(n) metal-organic framework显示文摘Lanthanum is one of the rare earth metals which due to specific chemio-physical properties,has wide applications in different industries.In this research,the ability of the synthesized metal-organic framework(MOF),[Zn(bim)_(2)(bdc)]_(n)(ZBB) for the removal of lanthanum ions from the aqueous stream was investigated in the batch and column processes.The synthesized MOF was characterized by using scanning electron microscopy(SEM),Brunauer-Emmett-Teller(BET),Fourier transform infrared spectroscopy(FTIR) and thermogravimetric analysis(TGA).The effect of pH on lanthanum ions adsorption was evaluated in the range from 1 to 7.Moreover,isothermal,kinetic,and thermodynamic parameters for adsorption of La(Ⅲ) ions onto the synthesized MOF were evaluated.The adsorption capacity of lanthanum ions onto the synthesized MOF was calculated to be about 130 mg/g.Thermodynamic studies demonstrate the endothermic and chemical nature of lanthanum adsorption,while kinetic studies suggest the pseudo-first-order of reaction.In column mode,the effect of solution flow rate passing through the fixed-bed was studied.Experimental data confirm that increasing the bed flow rate causes a decrease in the adsorption capacity of lanthanum ions on the synthesized MOF.Sareh Ammari Allahyari Reza Saberi Kamran Sepanloo Ahmad Lashkari 2021Journal of Rare Earths2021,39,6:1
13Identification of tyrosine residues in vascular endothelial growth factor receptor - 2/Flk- 1 involved in activation of phosphatidylinositol 3 -kinase and cell proliferation显示文摘Dayanir V Meyer RD Lashkari K 2001J Biol Chem2001,276,17:1
14Vascular endothelial growth factor and hepatocyte growth facter levels are differentially elevated in patients with advanced retinopathy of prematurity 显示文摘Lashkari K Hirose T Yazdany J 2000Ard J Pathol2000,156,4:1
15Yeast microarrays for genome wide paralled genetic and gene expression analysis 显示文摘Lashkari DA Derisi JL McCusker JH 1997Proc Natl Acad Sci USA1997,94,13:1
16Vascular endothelial growth factor and hepatocyte growth facter levels are differentially elevated in patients with advaned retinopathy of prematurity显示文摘Lashkari K Hirose T Yazdany J 2000Am J Pathol2000,156,4:1
17Receptor chimerate indicate that the vascular endothelial growth factor receptor-1 (VEGFR-1) modulates mitogenic activity of VEGFR-2 in endothetial cells显示文摘Rahimi N Dayanir V Lashkari K 2000J Biol Chem2000,275,16:1
18Vascular endothelial growth factor and hepatocyte growth facter levels are differentially elevated in patients with advanced retinopathy of prematurity显示文摘Lashkari K Hirose T Yazdany J 0,,04:1
19Yeast microarrays for genome wide paralled genetic and gene expression analysis显示文摘LASHKARI D A DERISI J L MCCUSKER J H 1997Proc Natl Acad Sci USA1997,94,13:1
20Rheological behavior of se- mi-solid AI-Si alloys:effect of morphology 显示文摘Omid Lashkari Reza Ghomashchi 2007Materials Sci- ence and Engineering A2007,45,:1
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