搜索结果: 1-15 共查到“理学 Redox”相关记录43条 . 查询时间(0.105 秒)
中国地质大学科学技术发展院王海洋(博士研究生)，李超* 等, BGEG国家重点实验室，Geochimica et Cosmochimica Acta(2019), Spatiotemporal redox heterogeneity and transient marine shelf oxygenation in the Mesoproterozoic ocean
中元古代；海洋高度；时空差异；氧化还原状态；短暂；陆架；氧化事件
2021/10/15
近日，中国地质大学生物地质与环境地质国家重点实验室李超教授团队在国际著名地球化学期刊《Geochimica et Cosmochimica Acta》(Nature Index)上发表题为“Spatiotemporal redox heterogeneity and transient marine shelf oxygenation in the Mesoproterozoic ocean”（中...
中国地质大学科学技术发展院宋虎跃BGEG国家重点实验室 Geology (2017) Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass extinction
全球；变冷；事件；导致；生物；大灭绝
2021/10/21
近日，中国地质大学生物地质与环境地质国家重点实验室宋虎跃副研究员及合作者在国际地学领域权威期刊《GEOLOGY》上发表题目“Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass ex...
Gordon Research Conference on Thiol-Based Redox Regulation & Signaling
Redox Regulation Signaling
2016/7/29
Redox biology is an all-encompassing term that refers to the multitude of reduction and oxidation processes occurring in biological systems. This Gordon conference focuses specifically on the redox re...
Spectroscopic and Redox Properties of Sym1 and (M)F195H Rhodobacter capsulatus Reaction Center Symmetry Mutants Which Affect the Initial Electron Donor
Circular Dichroism Electron Spin Resonance Spectroscopy Electron Transport Genes, Bacterial Kinetics Light-Harvesting Protein Complexes Mutation Oxidation-Reduction Photosynthetic Reaction Center Complex Proteins Plasmids Protein Conformation Rhodobacter capsulatus Spectrophotometry
2016/5/23
The redox properties, absorption, electroabsorption, CD, EPR, and P+QA- recombination kinetics have been measured for the special pairs of two mutants of Rhodobacter capsulatus reaction centers involv...
Seasonal Changes in the Hydrochemical Structure of the Black Sea Redox Zone
Seasonal Changes Hydrochemical Structure Black Sea Redox Zone
2015/7/27
The Black Sea is the world's largest marine anoxic basin. The Black Sea's water below a depth of ~100 m is enriched with hydrogen sulfide that formed after the intrusion of seawater as a result of sea...
ELUCIDATING THE ROLE OF REDOX EFFECTS AND THE KU80 C-TERMINAL REGION IN THE REGULATION OF THE HUMAN DNA REPAIR PROTEIN KU
DNA-PKcs regulation Ku NHEJ
2015/5/25
DNA double strand breaks (DSB) are among the most lethal forms of DNA damage and can occur as a result of ionizing radiation (IR), radiomimetic agents, endogenous DNA-damaging agents, etc. If left unr...
Possibilities of differentiation of individual Achillea species on the basis of redox potential measurements
yarrow Achillea Achillea species redox potentia
2015/1/20
he redox potential of flowers of Achillea plants was measured by means of a puncture method. Measurements were performed in 6 taxa (species and hybrids) in the stage of bud formation, full flower and ...
采用冷冻干燥法分别制备了经Cu、Co、Mn、Ni修饰的Fe2O3/Al2O3氧载体。利用化学吸附仪,通过程序升温还原(H2-TPR)和程序升温氧化(TPO)来研究经不同过渡金属修饰的Fe2O3/Al2O3与H2和O2的反应性能。实验发现,在Fe2O3/Al2O3中加入Cu、Co、Ni以后,氧载体与H2的反应性都有提高,但是当在Fe2O3/Al2O3中加入Mn以后,氧载体的反应性和载氧能力反而下降。...
Atmospheric dissolved iron deposition to the global oceans: effects of oxalate-promoted Fe dissolution, photochemical redox cycling, and dust mineralogy
global oceans oxalate-promoted Fe dissolution
2014/12/12
Mineral dust deposition is suggested to be a significant atmospheric supply pathway of bioavailable iron
(Fe) to Fe-depleted surface oceans.
Redox states of thirteen shergottites as inferred from iron micro X-ray absorption near edge structure of maskelynite
shergottite X-ray Absorption Near Edge Structure Mars maskelynite redox stat
2017/4/10
We used synchrotron radiation Fe micro-XANES (X-ray Absorption Near Edge Structure) analysis to determine the
iron valence of maskelynite (shocked-plagioclase glass) in thirteen shergottites, and we ...
Phosphatases relieve carbon limitation of microbial activity in Baltic Sea sediments along a redox-gradient
carbon limitation Baltic Sea sediments
2014/4/4
The relationship between phosphatase activity and the element limiting microbial activity (carbon [C], nitrogen
[N], or phosphorus [P]) was studied experimentally in sediment from four stations in th...
Extraordinarily Efficient Conduction in a Redox-Active Ionic Liquid
Extraordinarily Efficient Conduction Redox-Active Ionic Liquid
2010/11/19
Iodine added to iodide-based ionic liquids leads to extraordinarily efficient charge transport, vastly exceeding that expected for such viscous systems. Using terahertz time-domain spectroscopy, in co...
The role of polysaccharides and diatom exudates in the redox cycling of Fe and the photoproduction of hydrogen peroxide in coastal seawaters
polysaccharides and diatom exudates the redox cycling of Fe the photoproduction of hydrogen peroxide coastal seawaters
2010/1/21
The effect of artificial acidic polysaccharides (PS) and exudates of Phaeodactylum tricornutum on the half-life of Fe(II) in seawater was investigated in laboratory experiments. Strong photochemical h...
Redox Cycling Effect on the Surface-enhanced Raman Scattering Signal of Crystal Violet Molecules at Nanostructured Interdigitated Array Electrodes
Redox Cycling the Surface-enhanced Raman Scattering Signal Crystal Violet Molecules
2010/9/16
Nanostructured interdigitated array (IDA) electrodes with different inter-electrode spacing were demonstrated to improve the detection sensitivity of short-lived electroactive species and to follow in...
Kinetic Spectrophotometric Determination of N-Acetyl-L-cysteine Based on a Coupled Redox-Complexation Reaction
Kinetic Spectrophotometric Determination N-Acetyl-L-cysteine Coupled Redox-Complexation Reaction
2010/9/20
A novel simple kinetic spectrophotometric method for the determination of N-acetyl-L-cysteine (NAC) has been developed and validated. The proposed method is based on a coupled redox-complexation react...