نتایج جستجو برای: جریان 2co

تعداد نتایج: 38233  

Journal: :Chemical communications 2006
Dmytro S Nesterov Volodymyr N Kokozay Viktoriya V Dyakonenko Oleg V Shishkin Julia Jezierska Andrew Ozarowski Alexander M Kirillov Maximilian N Kopylovich Armando J L Pombeiro

An unprecedented hexanuclear heterotrimetallic Fe/Cu/Co complex bearing two Cu(mu-O)2Co(mu-O)2Fe cores is easily prepared by self-assembly and acts as a remarkable catalyst for the peroxidative oxidation of cycloalkanes under mild conditions.

پدیده تغییر اقلیم و گرم شدن جهانی توجه بسیاری از دانشمندان را به خود جلب کرده است. هدف از این پژوهش بررسی انتشار گازهای گلخانه‏ای و پتانسیل گرمایش جهانی (GWP) ناشی از آن در تولید گندم در گرگان بود. برای انجام این پژوهش ابتدا 6 مزرعه گندم در دو بخش شرقی و غربی گرگان انتخاب شدند. همه اعمال زراعی به 8 بخش تهیه زمین، کاشت، کوددهی، حفاظت گیاه، کنترل علف‌های هرز، آبیاری، برداشت و حمل و نقل به کارخانه...

Journal: :Inorganic Chemistry 2021

A water-soluble strapped iron(III)tetraarylporphyrin (FeIIIPor-1) bearing two propylpyridinium groups at the side chains and a carboxylic acid group overhanging position of strap was synthesized to mimic function myoglobin with distal polar functionality in aqueous solution. FeIIIPor-1 forms stable 1:1 inclusion complex per-O-methylated β-cyclodextrin dimer having pyridine linker (Py3OCD), prov...

Journal: :Science 2001
R J Levis G M Menkir H Rabitz

We used strong-field laser pulses that were tailored with closed-loop optimal control to govern specified chemical dissociation and reactivity channels in a series of organic molecules. Selective cleavage and rearrangement of chemical bonds having dissociation energies up to approximately 100 kilocalories per mole (about 4 electron volts) are reported for polyatomic molecules, including (CH3)2C...

Journal: :Nature chemistry 2010
Olga Lopez-Acevedo Katarzyna A Kacprzak Jaakko Akola Hannu Häkkinen

Finely dispersed nanometre-scale gold particles are known to catalyse several oxidation reactions in aerobic, ambient conditions. The catalytic activity has been explained by various complementary mechanisms, including support effects, particle-size-dependent metal-insulator transition, charging effects, frontier orbital interactions and geometric fluxionality. We show, by considering a series ...

2012
Adam Wightwick Robert Walters Graeme Allinson Neal Menzies

Adam Wightwick1,2,3, Robert Walters3, Graeme Allinson3,4, Suzanne Reichman5, and Neal Menzies1,2 1The University of Queensland 2Co-operative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE) 3Department of Primary Industries, Victoria 4Victorian Centre for Aquatic Pollution Identification and Management (CAPIM) 5Royal Melbourne Institute of Technology (R...

2010
Czesław Szmytkowski

Absolute total cross sections (TCSs) for electron scattering from acetaldehyde [(CH3)CHO] and acetone [(CH3)2CO] molecules have been measured at electron-impact energy extending from 0.7 to 400 eV, using a linear electron-transmission technique. The shape of obtained TCS energy dependences appears typical for targets of high electric dipole moment; both TCSs decrease with the energy increase; o...

Journal: :Acta Crystallographica Section E Crystallographic Communications 2016

2016
Mohammed Hadouchi Abderrazzak Assani Mohamed Saadi Lahcen El Ammari

Single crystals of the title compounds, disodium di(cobalt/iron) cobalt tris-(orthovanadate), Na2(Fe/Co)2Co(VO4)3, and disilver di(cobalt/iron) cobalt tris-(orthovanadate), Ag2(Fe/Co)2Co(VO4)3, were grown from a melt consisting of stoichiometric mixtures of three metallic cation precursors and vanadium pentoxide. The difficulty to distinguish between cobalt and iron by using X-ray diffraction a...

Journal: :Jurnal Ilmiah Perikanan dan Kelautan 2023

Highlight Research Each species of microalga has a preferable nitrogen source for their optimal growth. The sources in the grown media affected growth rate and biochemical composition Chlorella FNUB01. (NH2)2CO (urea) was found to be best alternative For producing 1 g FNUB01, use urea reduced cost medium by 72.6%. Abstract sp. is potential microalgae produced commercially feed, accelerator, imm...

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