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901.
Mathematical Programming - We study the geometry of convex optimization problems given in a Domain-Driven form and categorize possible statuses of these problems using duality theory. Our duality... 相似文献
902.
Designs, Codes and Cryptography - In this paper, we analyze the security of subset-resilient hash function families, which is first proposed as a requirement of a hash-based signature scheme called... 相似文献
903.
Izadikhah Mohammad Azadi Elnaz Azadi Majid Farzipoor Saen Reza Toloo Mehdi 《Annals of Operations Research》2022,316(2):1319-1347
Annals of Operations Research - Owing to the increasing importance of sustainable supply chain management (SSCM), it has received much attention from both corporate and academic over the past... 相似文献
904.
Mohammad Mahdavi Mehdi Asadi Mahsa Khoshbakht Mina Saeedi Mohammad Bayat Alireza Foroumadi Abbas Shafiee 《Helvetica chimica acta》2016,99(5):378-383
A series of novel quinazolin‐4(3H)‐one derivatives were efficiently synthesized starting from isatoic anhydride. First, reaction of isatoic anhydride and amines in H2O at room temperature afforded 2‐aminobenzamides. Then, CuBr/Et3N promoted reaction of 2‐aminobenzamides and different aryl isothiocyanates in DMF at 80° afforded the title compounds in good yield. 相似文献
905.
906.
Abdouss Majid Shokri Aref Karimi Mohammad Mehdi Zargaran Mojdeh 《Russian Journal of Applied Chemistry》2022,95(3):366-378
Russian Journal of Applied Chemistry - In this project, the fibers were applied to increase the tensile strength of the concrete and produce fiber reinforced concrete (FRC). Polypropylene (PP) is... 相似文献
907.
Salari Mehdi Assari Mohammad Reza Ghafouri Ashkan Pourmahmoud Nader 《Journal of Thermal Analysis and Calorimetry》2022,147(1):509-523
Journal of Thermal Analysis and Calorimetry - Heat transfer of MgO-EG nanofluid flowing in a double tube heat exchanger with an inner tube containing a partial porous material under laminar and... 相似文献
908.
Farbod Salahi Mohammad Javad Taghizadeh Hamid Arvinnezhad Mehdi Moemeni Khosrow Jadidi Behrouz Notash 《Tetrahedron letters》2014
The catalytic, highly regio-, diastereo-, and enantioselective synthesis of a small library of chiral spirooxindolopyrrolizidines via a three-component 1,3-dipolar cycloaddition reaction of azomethine ylides, derived from isatin, with electron-deficient dipolarophiles, 3-(2-alkenoyl)-1,3-oxazolidin-2-ones, is described. A chiral copper(II) complex of cyclohexane-1,2-bis(arylmethyleneamine) catalyzed this process at room temperature. The reaction mechanism is discussed on the basis of the assignment of the absolute configuration of the cycloadducts. 相似文献
909.
Ali Ramazani Mehdi Khoobi Fariba Sadri Roghayeh Tarasi Abbas Shafiee Hamideh Aghahosseini Sang Woo Joo 《应用有机金属化学》2018,32(1)
Palladium immobilized magnetic nanoFe3O4@hyperbranched polyethylenimine (Fe3O4@HPEI.Pd) was prepared according to a simple and cost effective pathway and it was employed as a new efficient and selective organic–inorganic hybrid nanocatalyst for the aqueous oxidation of primary and secondary alcohols to their corresponding products in good yields applying oxone (potassium hydrogen monopersulfate) and H2O2 as an oxidant at room temperature. Moreover, the catalytic system was reused at least 13 times without significant loss of activity. The complete characterization of this efficient nanocatalyst was investigated by FTIR, UV–Vis, TEM, SEM, XRD, TGA, VSM, ICP and EDX techniques. 相似文献
910.
Mozhgan Samandar Sangari Mehdi Rashidi S. Masoud Nabavizadeh Banafshe Askari Fatemeh Niroomand Hosseini 《应用有机金属化学》2018,32(1)
Oxidative addition of 2‐phenylethylbromide (PhCH2CH2Br) to dimethylplatinum(II) complexes [PtMe2(NN)] ( 1a , NN = 2,2′‐bipyridine (bpy); 1b , NN = 1,10‐phenanthroline (phen)) afforded the new organoplatinum(IV) complexes [PtMe2(Br)(PhCH2CH2)(bpy)], as a mixture of trans ( 2a ) and cis ( 3a ) isomers, and [PtMe2(Br)(PhCH2CH2)(phen)], as a mixture of trans ( 2b ) and cis ( 3b ) isomers, respectively. The new Pt(IV) complexes were readily characterized using multinuclear (1H and 13C) NMR spectroscopy and elemental microanalysis. The crystal structure of 2a was further determined using X‐ray crystallography indicating an octahedral geometry around the platinum centre. A comparison of reactivity of RCH2Br reagents (R = CH3, Ph or PhCH2) in their oxidative addition reactions with complex 1a , with an emphasis on the effects of the R groups of alkyl halides, was also conducted using density functional theory. 相似文献