Results 51 to 60 of about 281,059 (296)
Efeito do substituinte no deslocamento químico de rmn de 13c de quinolinas 4,8- dissubstituídas [PDF]
, 2008 TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Os efeitos provocados por substituintes em compostos aromáticos podem ser verificados através de deslocamentos químicos em espectros de ...
OLIVEIRA, Leonardo Henrique de
core
, 1985 The structure of C hordein was studied by a combination of solution and solid-state 13C-n.m.r. spectroscopy. The repetitive primary structure results in simple solution-state n.m.r.
Tatham, A. S. +2 more
core +1 more source
Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition
Advanced Engineering Materials, EarlyView.AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley +1 more source
13C nuclear magnetic resonance spectroscopy (13C NMR) ()
dataset for 13C nuclear magnetic resonance spectroscopy (13C NMR) 13C NMR (100 MHz, Chloroform-d [77.0 ppm], ppm) δ = 171.0, 147.0, 142.8, 141.7, 121.7, 96.2, 57.5, 20.9, 11 ...
Wippert, Nicolai, Gräßle, Simone
core +5 more sources
Douala – miasto utraconych nadziei? Skutki dekolonizacji w Afryce a zrównoważony rozwój
Problemy Ekorozwoju, 2011 Jednym z najistotniejszych skutków dekolonizacji jest niestabilność systemów politycznych państw postkolonialnych, co pociąga za sobą kolejne, daleko idące konsekwencje.
Marta Dorenda-Zaborowicz
doaj
Synthesis of Gemcitabine-13C, 15N2 and Gemcitabine-13C, 15N2 Metabolites
Journal of Isotopes, 2014 Homemade urea-13C, 15N2 was used to react with 3-methyl acrylonitrile closure to form cytosine-13C, 15N2 (2),which was protected by trimethylsilylation with BSA and condensed with 2-deoxy-2,2-difluoro-D-erythro-pentofuranose-3,5-dibenzoate-1 ...
ZHU Cheng-gu;YANG Shao-zu;YAN Sheng-wang;FANG Ning-jing;CAI Ding-long;LI Gang
doaj +1 more source
Advanced Functional Materials, EarlyView.Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang +13 more
wiley +1 more source
13C-Glycogen deposition during pregnancy in the rat following routine meal feeding
, 1998 In vivo 13C-NMR was employed to determine the hepatic fate of infused [1-13C]-d-glucose (200 mg/kg) following ad libitum or routine meal feeding (RMF) regimes imposed during pregnancy.
Changani, K.K., Bell, J.D., Iles, R.A.
core +1 more source
Advanced Functional Materials, EarlyView.Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour +11 more
wiley +1 more source
Effects of Rice Straw and Its Biochar Addition on Soil Labile Carbon and Soil Organic Carbon
Journal of Integrative Agriculture, 2014 Whether the biochar amendment could affect soil organic matter (SOM) turnover and hence soil carbon (C) stock remains poorly understood. Effects of the addition of 13C-labelled rice straw or its pyrolysed biochar at 250 or 350°C to a sugarcane soil ...
Yun-feng YIN +4 more
doaj +1 more source