Results 91 to 100 of about 614 (250)
, 2007 采用ICP-OES,XRD,SEM,EDX和电导率在线监测等手段分析铬渣浸取前后的变化及各种元素浸出量随pH值的变化,考察了添加化学悬浮剂、浸取体系和超声处理对铬渣中Cr(Ⅵ)浸出行为的强化作用.结果表明,浸取过程基本不改变铬渣的结构;pH为5—7,使用合适的浸取介质有利于Cr(Ⅵ)的溶出,通过添加化学悬浮剂APG650可提高浸取效率3倍 ...
林晓 +4 more
core
Preparation of Modified Expanded Graphite and its Adsorption Characteristics for Pb (II) and Cr (VI)
, 2011 A new method to improve the adsorption ability of expanded graphite (EG) was introduced in this paper. EG was modified by nano magnesium hydroxide. Modified expanded graphite (MEG) was characterized by SEM, XRD and FTIR.
Rui Jing Su +3 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Chimeric antigen receptor (CAR) T‐cell therapy has been investigated in neurological diseases, encompassing both central nervous system malignancies and autoimmune disorders, thereby extending its application beyond hematological cancers.
Omar Alqaisi +5 more
wiley +1 more source
纳米多孔二氧化钛空心球的水热法制备及其对Cr(Ⅵ)的吸附特性
, 2011 利用水热法一步合成了TiO2.结构、形貌表征结果显示,所得产物为纯相锐钛矿型多孔空心结构,平均粒径为172nm.以此吸附剂对Cr(Ⅵ)的吸附实验结果表明,溶液pH对TiO2吸附性能影响显著,在pH为2.7时,产物最大吸附率为86%,随pH值升高,吸附率逐渐降低.其等温吸附行为很好地符合朗缪尔单分子层吸附模型,通过计算得到产物对Cr(Ⅵ)的理论最大单位吸附量为23mg/g.产物吸附Cr(Ⅵ)后,使用碱液可将吸附的Cr(Ⅵ)离子脱附,表现出了极好的重复使用性能.Cr(Ⅲ)共存对TiO2的Cr(Ⅵ ...
张星 +5 more
core
Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran +13 more
wiley +1 more source
Determination of Trace Chromium (VI) in Tanning Wastewater by Flow Injection Spectrophotometry
, 2010 In 1.0 mol/L H2SO4 solution, a rapid and simple flow—injection spectrophotometric method has been developed for Cr(Ⅵ) determination, based on the violet—red Cr(Ⅵ)—diphenylcarbazide chelates formed by reactions. The results show, under optimum conditions,
Jing Bin Zhang, Xin Zhao, Zhi Hui Sui
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To characterize the demographic, clinical, and laboratory features of the Chinese patients of genetic Creutzfeldt‐Jakob disease with T188K variant (T188K‐gCJD), the most common subtype of genetic prion diseases (gPrDs) in China. Methods In this nationwide retrospective study, data from 98 genetically confirmed T188K‐gCJD patients ...
Chun‐Jie Li +11 more
wiley +1 more source
Gongye shui chuli, 2017 为解决水体Cr（Ⅵ）污染，实现农业固废资源化利用，通过水热H3PO4改性制备了花生壳基吸附剂，并将其用于水中Cr（Ⅵ）的吸附。实验结果表明，在453 K下，与质量分数为15%的H3PO4水热反应10 h制备的改性花生壳性能最优；当吸附剂投加量为2 g/L，pH=2.0，Cr（Ⅵ）初始质量浓度为5 mg/L，吸附时间为120 min时，水中Cr（Ⅵ）去除率可达86.83%。改性花生壳对Cr（Ⅵ）的吸附过程符合伪二级动力学模型，属于Langmuir单分子层吸附。
孟祥霞, 邬欣慧, 马东, 吴娟
doaj
Arthritis Care &Research, EarlyView.Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo +88 more
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