Results 51 to 60 of about 455,453 (240)
Phytoextraction of Cr(VI) from soil using Portulaca oleracea
, 2013 Cr(VI) represents an environmental challenge in both soil and water as it is soluble and bioavailable over a wide range of pH. In previous investigations, Portulaca oleracea (a plant local to the United Arab Emirates (UAE)) demonstrated particular ...
Alyazouri, Ayman H. +10 more
core +1 more source
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
core +1 more source
Molecular Oncology, EarlyView.Single‐cell multi‐omics reveals epigenetic heterogeneity across therapy‐adaptive tumor states, including quiescent/dormant, drug‐tolerant persister, and EMT‐like phenotypes. By linking regulatory features with state‐associated biomarkers, these approaches inform biomarker‐guided therapeutic strategies for evolving tumors.
Hee Jung Kim +3 more
wiley +1 more source
Gongye shui chuli, 2020 利用介质阻挡放电低温等离子体技术实现了废水中Cr（Ⅵ）和苯酚的同步去除。研究表明，低温等离子体对苯酚和Cr（Ⅵ）有较强的去除能力。其中·OH在苯酚氧化降解过程中起主要作用，而·OH的消耗能够明显促进Cr（Ⅵ）的还原。分析了苯酚和Cr（Ⅵ）共存条件下污染物的去除效果，发现去除过程中苯酚和Cr（Ⅵ）存在协同作用：苯酚能够与·OH发生反应，增加还原性·H含量，促进Cr（Ⅵ）的还原；Cr（Ⅵ）通过消耗还原性物质，间接增加了与苯酚反应的·OH含量，促进苯酚的降解。
刘华瑜, 宋泽群, 宋超, 王曙光
doaj
流动注射分离-原子吸收光谱法测定底泥中生物可利用态Cr(Ⅵ)和Cr(Ⅲ)
, 2007 湖泊底泥中生物可利用态铬是对湖泊生态环境最有影响的铬赋存形态,分别用弱有机酸或螯合缓冲剂对底泥中生物可利用态铬进行萃取分离。在流动注射系统中,分别以串联在流路中阴、阳离子交换微型柱分离,NH4NO3+抗坏血酸和H2SO4两种洗脱液同时逆向洗脱,实现了对底泥可利用态铬中Cr(Ⅵ)和Cr(Ⅲ)同时在线分离和原子吸收光谱法测定。交换时间2min,洗脱50s,Cr(Ⅵ)和Cr(Ⅲ)回收率分别为85.4%~94.8%和96.7%~106%。本方法对实际样品中不同价态铬进行测定,铬回收率可达95%。Cr(Ⅵ ...
刘杰, 王畅, 刘剑彤, 谢文兵
core
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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Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis
FEBS Open Bio, EarlyView.Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho +4 more
wiley +1 more source
Gongye shui chuli, 2021 铬是一种重金属元素，在自然界多以Cr（Ⅲ）或Cr（Ⅵ）的价态存在。而Cr（Ⅵ）的毒性远高于Cr（Ⅲ），对人体健康造成危害。因此，高效去除废水中的Cr（Ⅵ）意义重大。将聚间苯二胺（PmPD）接枝至壳聚糖（CTS）表面，制得聚间苯二胺修饰的壳聚糖吸附剂（CTS-PmPD），研究其最佳合成条件及对水中Cr（Ⅵ）的去除情况。结果表明，CTS-PmPD的最佳合成条件为：m（PmPD）∶m（CTS）=1∶5，反应温度100 ℃。在30 ℃下用0.06 g CTS-PmPD吸附处理pH为3.0、质量浓度为100 mg/
于婉婷, 侯亮
doaj
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
core +1 more source
FEBS Open Bio, EarlyView.Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta +7 more
wiley +1 more source