Results 1 to 10 of about 213,469 (99)

Planetary wave activity in the lower ionosphere during CRISTA I campaign in autumn 1994 (October−November) [PDF]

open access: yesAnnales Geophysicae, 1998
On the basis of MEM spectrum analysis, the main planetary scale fluctuations formed in the lower ionosphere are studied over a period of 3–25 days during the CRISTA campaign (October-November 1994).
D. Pancheva, J. Laštovička
doaj   +1 more source

Synthesis and Characterization of Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) Complexes With Polydentate 14-Membered Macrocyclic Ligand [PDF]

open access: yesمجلة التربية والعلم, 2012
الخلاصة یعطی التفاعل التکثیفی [2+2] بین السمیکاربازید وبنزویل اسیتون (بنسبة مولاریة 1:1) فی المحلول المائی عند درجة حرارة المختبر لیکاند قاعدة شیف حلقی رباعی الایمین (L): 5، 12 –ثنائی مثیل – 7، 14 – ثنائی فنیل-1، 3، 4، 8، 10، 11- هکسا ازا سایکلو تیترا ...
Najla H. Taher, Akram A. Mohammed
doaj   +1 more source

Anti-cancer study of Ni (II) and Zn (II)- chitosan complexes

open access: yesTikrit Journal of Pure Science, 2022
Two neutral chitosan polymer complexes with Ni(II) and Zn (II) were prepared and characterized by molar conductivity measurements, IR spectroscopy. The prepared complexes were tested against two types of cancer cell lines {breast cancer (MCF-7) and ...
Beyadir R. Abed, Ali O. Mohammed
doaj   +1 more source

Synthesis and characterization of some new complexes of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II) with 2,3 and 3,4- di-(2΄-thiophenoyloxy) aniline [PDF]

open access: yesمجلة التربية والعلم, 2012
A series of new complexes of the type [M(L1)Cl2] , [M(L2)Cl2] and [M΄(L1)(Th)2] where L1=2,3-di-(2΄-thiophenoyloxy) aniline, L2=3,4-di-(2΄-thiophenoyloxy)aniline, M=Co+2, Ni+2, Cu+2, Zn+2, Cd+2 and Hg+2, M΄= Ni+2, Cu+2, Zn+2 and Cd+2, Th=thiophene ...
Saba M. Alasalli
doaj   +1 more source

Preparation and adsorption properties of Ni(ii) ion-imprinted polymers based on synthesized novel functional monomer

open access: yese-Polymers, 2021
In this study, a novel functional monomer N-(1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethyl)acrylamide (NDTEA) was designed and synthesized, and was used to prepare Ni(ii) ion-imprinted polymers (Ni(ii)-IIPs).
Zhao Li   +6 more
doaj   +1 more source

Synthesis and characterization complexes of bis (2-mercaptobenzimidazole) mercury (II) with transition metal (Ni (II), Pd (II), and Pt (II))

open access: yesZanco Journal of Pure and Applied Sciences, 2020
Treatment of 2-Mercaptobenzimidazol (HL) with the mercuric acetate (Hg(OAc)2) give the complex[Hg(L)2] (1). Then the multinuclear complexes of the type [M2Hg2(L)4Cl4] were prepared through the reaction of complex (1) with each of NiCl2.6H2O, PdCl2 and ...
Nhiyat H. Hassan, Hikmat A. Mohammad
doaj   +3 more sources

Preparation and Study of Some New Schiff Base Complexes of Co(II), Ni(II) and Cu(II) [PDF]

open access: yesمجلة التربية والعلم, 2013
: The ligand (LH) [P-hydroxy phenyl benzilidene] derived from a condensation product of p-hydroxy aniline and benzaldehyde and its complexes with Cobalt(II), Nickel(II) and Copper(II) has been synthesized and characterized by metal analysis molar ...
A. M. Al-Dabagh Department of Chemistry
doaj   +1 more source

Distinguished Ni(II) Capture with Rapid and Superior Capability Using Biochar: Behavior and Mechanism [PDF]

open access: yesNature Environment and Pollution Technology, 2022
Batch experiments were used to study the interaction mechanism of Ni(II) with biochar as a function of solution pH, contact time, initial concentrations, reaction temperature, and the addition of humic compounds.
Y. Wang, S. Zhang and Y. Zheng
doaj   +1 more source

Short-term responses of the anammox process to Ni(II): nitrogen removal, mechanisms and inhibition recovery

open access: yesScientific Reports, 2022
Anaerobic ammonia oxidizing (anammox) has already been recognized as an innovative and economical nitrogen removal technology. However, the effect of heavy metals on anammox bacteria in aquatic ecosystem remains largely unknown.
Yu-Qi Li   +5 more
doaj   +1 more source

Recovery Process for Critical Metals: Selective Adsorption of Nickel(II) from Cobalt(II) at Acidic Condition and Elevated Temperature

open access: yesAdsorption Science & Technology, 2023
Effective and sustainable separation processes for critical metals, especially for the physicochemically similar elements nickel and cobalt in battery recycling, are of great interest in the future.
Friederike Kriese   +2 more
doaj   +1 more source

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