Results 71 to 80 of about 621,630 (239)
, 2008 利用等离子体发射光谱（ICP-AES），激光拉曼光谱，傅里叶变换红外光谱（FTIR），核磁共振（^1H NMR）分析技术对伯胺在近中性条件下从水溶液中萃取Cr（Ⅵ）的过程进行了研究。ICP-AES对萃取前后水相Cr（Ⅵ）浓度测试结果显示，在近中性条件下，伯胺仍然能够萃取Cr（Ⅵ）。激光拉曼光谱显示，未经酸化的伯胺从近中性水溶液中萃取Cr（Ⅵ）后在890cm^-1处出现新峰。红外光谱显示在近中性条件下直接使用伯胺萃取Cr（Ⅵ）与经酸化处理后按离子交换历程萃取的萃取机理不同，Cr（Ⅵ ...
林晓, 张懿, 曹宏斌
core
, 2019 目的:研究从厦门近岸海域沉积物样品中分离筛选出的芽孢八叠球菌属菌株Sporosarcina saromensis M52在含不同浓度六价铬[Cr（Ⅵ）]培养基中的生长情况,定位Cr（Ⅵ）还原酶,探讨金属离子和小分子物质对耐Cr（Ⅵ）菌株M52还原能力的影响。方法:将M52菌株的种子液接种于含不同浓度(0～600mg·L-1)Cr（Ⅵ）LB培养基中,培养0～48h后用紫外分光光度法测量600nm处M52菌液的吸光度（A）值,观察M52菌株在含0、50、100、200、400和600mg·L-1 Cr（Ⅵ ...
郭东北 +7 more
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FEBS Open Bio, EarlyView.The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley +1 more source
Gongye shui chuli, 2012 为了高效、低成本地处理含Cr(Ⅵ)废水,提出采用离子交换-还原沉淀耦合工艺处理该废水。结果表明,将质量浓度为100 mg/L的含Cr(Ⅵ)废水以20 mL/min连续10.5 h流经离子交换柱,Cr(Ⅵ)的吸附率高达99.9%;用5%NaOH溶液洗脱饱和的离子交换树脂,洗脱液含Cr(Ⅵ)高达6 918.7 mg/L。FeSO4.7H2O还原处理浓缩后的高浓度含Cr(Ⅵ)废水的最佳反应条件为pH≥7,反应时间30 min,搅拌速度100 r/min,FeSO4.7H2O投加量为理论投加量的1.2倍 ...
曾君丽, 邵友元, 易筱筠
doaj +2 more sources
Direct Exfoliation of g-C3N4 with Addition of NaOH for Enhanced Photocatalytic Cr(Ⅵ) Reduction
, 2018 A simple, effective and environmental-friendly method was adopted for enhancing the photocatalytic activity of g-C3N4 in the reduction of aqueous Cr(Ⅵ) under visible-light irradiation.
Hui Chang +3 more
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Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment [PDF]
, 2013 This paper presents a review of creep cavitation and rupture of low Cr alloy and its weldment, particular in the heat-affected zone (HAZ). Creep damage is one of the serious problems for the high temperature industry.
Xu, Qiang +6 more
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, 2021 This dataset consists of HAXPES spectra at Cr measured at SPring-8 BL46XU, and is a part of HAXPES database (MDR HAXPES DB, https://doi.org/10.48505/nims.3056) as a collection of ...
Industrial Application and Partnership Division, JASRI
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Pathways and pitfalls: a qualitative study of student experiences in biomedical science education
FEBS Open Bio, EarlyView.Biomedical science students from underrepresented backgrounds face barriers including financial strain, disrupted laboratory access and cultural exclusion. Peer networks provide vital support when institutional systems are difficult to navigate. To create inclusive learning environments and achieve academic success, educators should blend active, hands‐
Olivia J. Russell +8 more
wiley +1 more source
Carburisation of ferritic Fe–Cr alloys by low carbon activity gases [PDF]
, 2011 Model Fe–Cr alloys were exposed to Ar–CO2–H2O gas mixtures at 650 and 800 °C. At equilibrium, these atmospheres are oxidising to the alloys, but decarburising (aC ≈ 10−15 to 10−13).
Zhang, Jianqiang +7 more
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carnotresearch/cr-nimble: CR-Nimble v0.3.1
, 2022 This release includes functions which were introduced during the development of block sparse bayesian learning in CR-Sparse library. Documentation Added Metrics normalized_mse percent_rms_diff compression_ratio cr_to_pss pss_to_cr Noise ...
Shailesh Kumar
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