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抗凝血酶 III 活性对骨科创伤性出血风险的评估价值研究
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作者 毕晓洁 王会超 肖中岳 《四川生理科学杂志》 2026年第2期296-299,307,共5页
目的:探讨抗凝血酶III(Antithrombin III,ATIII)活性在骨科创伤患者出血风险评估中的应用价值。方法:选取2022年11月至2024年12月期间本院骨科创伤中心收治62例患者作为研究对象。根据患者入院后24小时内是否发生临床显著的创伤性出血,... 目的:探讨抗凝血酶III(Antithrombin III,ATIII)活性在骨科创伤患者出血风险评估中的应用价值。方法:选取2022年11月至2024年12月期间本院骨科创伤中心收治62例患者作为研究对象。根据患者入院后24小时内是否发生临床显著的创伤性出血,将患者分为非出血组(非出血组)和出血组(出血组)。收集并对比两组的基线资料。检测并对比两组的实验室资料。采用t检验、χ2检验、Mann-Whitney U检验进行组间比较,Spearman相关分析评估相关性,Logistic回归分析筛选独立危险因素,受试者工作特征(ROC)曲线分析评估ATIII活性预测出血的价值。结果:62例骨科创伤患者中,发生出血的患者有19例,纳入出血组(出血组);非出血患者有43例,纳入非出血组(非出血组)。出血组的ISS评分显著高于非出血组,ATIII活性显著低于非出血组,PT、APTT显著延长,FIB水平显著降低,D-二聚体显著升高(P均<0.001),HGB、PLT显著降低(P<0.05)。多因素Logistic回归分析显示,ATIII活性降低、ISS评分升高和D-二聚体升高是骨科创伤患者出血的独立危险因素。ROC曲线分析显示,ATIII活性预测出血的曲线下面积(AUC)为0.920(95%CI:0.858-0.982,P<0.001),最佳截断值为74.90%,灵敏度为89.47%,特异度为83.72%。结论:ATIII活性降低是骨科创伤患者出血的独立危险因素,且具有良好的预测价值。 展开更多
关键词 骨科创伤 抗凝血酶iii 出血风险 凝血功能
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Real-World Data on Stage III Non-Small Cell Lung Cancer in Vietnam
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作者 Khanh Toan Nguyen Thi Huong Pham +14 位作者 Van Lam Ngo Thi Thuy My Nguyen Thi Dao Nguyen Khanh Hung Truong Van Nhat Nguyen Van Thanh Le Ba Duc Ho Thi Phuong Thao Nguyen Thi Ha Phuong Nguyen Thi My Linh Dinh Thi Hong Anh Vo Thi Thuy Phan Thi Hai Yen Le Thi Nhung Ngo Khanh Ha Nguyen 《Oncology Research》 2025年第12期4013-4028,共16页
Objective:Patients with stage III non-small cell lung cancer(NSCLC)present with a heterogeneous disease profile and often require multifaceted treatment strategies.This research aimed to investigate the demographic fe... Objective:Patients with stage III non-small cell lung cancer(NSCLC)present with a heterogeneous disease profile and often require multifaceted treatment strategies.This research aimed to investigate the demographic features,therapeutic patterns,and survival outcomes of such patients in Vietnam.Methods:A retrospective descriptive study was conducted on 731 patients diagnosed with stage III NSCLC American Joint Committee on Cancer(AJCC)8th edition,at Nghe An Oncology Hospital from January 2018 to August 2024.Descriptive statistics summarized baseline and treatment characteristics.We calculated progression-free survival(PFS)and overall survival(OS)through the Kaplan–Meier approach and compared survival curves with the log-rank test.Prognostic variables were assessed using Cox regression analysis.Results:Patients had a median age of 64 years,and the majority(84%)were male.Disease stages IIIA,IIIB,and IIICaccounted for 26.0%,49.9%,and 24.1%of cases,respectively.Adenocarcinoma(60.7%)was the most common histological subtype.Initial treatments included surgery(8.5%),concurrent chemoradiotherapy(38.6%),sequential chemoradiotherapy(2.2%),radiotherapy alone(1.4%),systemic therapy(37.3%),and palliative care(12.0%).From 2018 to 2024,the use of systemic therapy declined(88.5%to 21.7%),while concurrent chemoradiotherapy rose significantly(1.1%to 51.5%).Median progression-free survival(mPFS)and median overall survival(mOS)were 8.9 months and 20.5 months,respectively.Patients with stage IIIA had significantly better outcomes(mPFS:12.6 months;mOS:32.4 months;p<0.001).Surgical treatment yielded the longest survival(mPFS:13.5 months;mOS:42.8 months).Favorable prognostic factors included adenocarcinoma subtype,presence of driver mutations,stage IIIA,and good performance status.Conclusion:For stage III NSCLC,concurrent chemoradiotherapy is still considered the standard treatment,whereas surgery can provide the highest survival advantage in carefully selected cases.Histology,molecular profile,and disease stage are key prognostic indicators. 展开更多
关键词 Non-small cell lung cancer stage iii SURGERY concurrent chemoradiotherapy IMMUNOTHERAPY
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A stable scandium(III) metal-organic framework with introduced nitrate ions for enhancing C_(2)H_(6)/C_(2)H_(4) selectivity in the separation of MTO products
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作者 Yajun Gao Xinyu Yang +1 位作者 Jian Su Zhizhong Li 《Chinese Journal of Structural Chemistry》 2025年第6期18-25,共8页
Based upon the thiophene-2,5-dicarboxylic acid(H_(2)Tdc),a novel[Sc_(3)(μ_(2)-OH)_(3)(CO_(2))_(4)O_(6)]n inorganic chain-based Sc-MOF with decorated nitrate ions,{[Sc_(3)(OH)_(2)(Tdc)_(3)(NO_(3))]⋅H_(2)O}_(∞)(AEU-1;... Based upon the thiophene-2,5-dicarboxylic acid(H_(2)Tdc),a novel[Sc_(3)(μ_(2)-OH)_(3)(CO_(2))_(4)O_(6)]n inorganic chain-based Sc-MOF with decorated nitrate ions,{[Sc_(3)(OH)_(2)(Tdc)_(3)(NO_(3))]⋅H_(2)O}_(∞)(AEU-1;AEU for Army Engineering University of PLA),was synthesized,which shows good water and chemical stabilities.Significantly,due to channel constriction accompanied by the polar window caused by introducing nitrate ions,AEU-1 exhibits high C_(2)H_(6)/C_(2)H_(4)adsorption selectivity comparable to many famous C_(2)H_(6)-selective MOFs,making it a promising candidate for the purification of methanol-to-olefin(MTO)products.Furthermore,theoretical investigations reveal that the introduced nitrate ions in AEU-1 as the main adsorption sites could provide strong interactions between the framework and C2H6/C3H6 in the full-contacting mode,leading to an increase in the adsorption enthalpies(Qst)of C_(2)H_(6)and C_(3)H_(6),and thus further improving the C_(2)H_(6)/C_(2)H_(4)and C_(3)H_(6)/C_(2)H_(4)adsorption selectivity.Our work could open up a new avenue for constructing MOFs with inorganic polar moieties as adsorption sites for one-step C_(2)H_(4)purification and C3H6 recovery from MTO mixtures with high selectivity. 展开更多
关键词 Scandium(iii)metal-organic framework Nitrate ions SELECTIVITY MTO product separation
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Collagen III combined with autologous adipose-derived mesenchymal stem cells accelerates burn wound healing in a rat model
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作者 Xiao-Long Zhou Ben Wu +1 位作者 Zi-Jing Xie Hong-De Li 《World Journal of Stem Cells》 2025年第5期85-92,共8页
BACKGROUND Skin is the largest organ in the human body and plays crucial roles in human health.Efficient and rapid healing of burn wounds is of great significance.While stem cell therapies have offered potential metho... BACKGROUND Skin is the largest organ in the human body and plays crucial roles in human health.Efficient and rapid healing of burn wounds is of great significance.While stem cell therapies have offered potential methods to treat burn wounds,relatively few have had success in clinical practice.AIM To investigate the effect of the combined application of collagen III and adiposederived stem cells(ASCs)on vascular regeneration in skin wound healing.METHODS Burn wounds were created in 18 adult male Sprague-Dawley rats,and they were randomly divided into two groups.In the treatment group,each rat was injected with 4×10^(6) Zs-Green-labeled autologous ASCs suspended in collagen III.In the control group,each rat was injected with collagen III.Each rat received six injections.Images of the wounds were acquired every 3 days.RESULTS Multiple injections of autologous ASCs improved wound closure rate more efficiently compared to the control group.Moreover,autologous ASCs do not survive long-term during the skin wound healing process.CONCLUSION This study demonstrated that multiple injections of autologous ASCs combined with collagen III accelerated burn wound healing by increasing collagen deposition and improving angiogenesis. 展开更多
关键词 Skin wound healing Adipose-derived mesenchymal stem cells Stem cell therapy Autologous transplantation Collagen iii
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In-depth Analysis of the Pathogenesis and Research Progress in Cutting-edge Treatment of Type III Acute Acquired Comitant Esotropia
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作者 Ling Jin 《Journal of Clinical and Nursing Research》 2025年第4期37-42,共6页
Type III acute acquired comitant esotropia(AACE)is a special type of binocular coordination disorder with sudden onset characteristics,but its pathogenesis and treatment strategies remain unclear.This article analyzes... Type III acute acquired comitant esotropia(AACE)is a special type of binocular coordination disorder with sudden onset characteristics,but its pathogenesis and treatment strategies remain unclear.This article analyzes the incidence and classification characteristics of Type III AACE,and explores its pathogenesis from multiple perspectives including clinical medicine,neuroscience,and neuro-ophthalmology.It is found that this disease is associated with factors such as decompensation of phoria,dysfunction of the visual center,abnormalities in the physiological and anatomical structure of extraocular muscles,accommodative factors,and disorders of convergence and divergence.The prognosis of Type III AACE is excellent with treatments such as botulinum toxin injection and surgery,and adjunctive therapies like prism adaptation test and visual function training can enhance the management effect.This article provides an in-depth analysis of the pathogenesis and cutting-edge treatment techniques for patients with Type III AACE,which can offer guidance for the subsequent diagnosis and treatment of such patients. 展开更多
关键词 Type iii acute acquired comitant esotropia Treatment progress PATHOGENESIS
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Improved superelastic Ni-Ti alloy wire for treating skeletal class III malocclusion combined with anterior crossbite:A case report
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作者 Yu-Hsiang Sean Chang Yuan-Hou Chen Jian-Hong Yu 《World Journal of Clinical Cases》 2025年第18期34-45,共12页
BACKGROUND Correcting skeletal class III malocclusion with anterior crossbite in adolescents using only orthodontic treatment poses challenges.This report highlights a novel approach leveraging improved superelastic N... BACKGROUND Correcting skeletal class III malocclusion with anterior crossbite in adolescents using only orthodontic treatment poses challenges.This report highlights a novel approach leveraging improved superelastic Ni-Ti alloy wire(ISW)to address these conditions effectively.CASE SUMMARY A 17-year-old male patient presented with the chief complaint of an underbite.The patient was given a diagnosis of skeletal class III malocclusion and anterior crossbite.The orthodontic treatment plan was implemented and did not require teeth extractions or orthognathic surgery.Key interventions involved the app-lication of ISW,intermaxillary elastics,and ISW unilateral multi-bend edgewise archwire.The unique combination of these techniques enabled the correction without the need for extractions or surgery.This approach leverages the advanced biomechanical properties of ISW,including its super-elasticity and shape memory,to enhance treatment efficacy.The treatment lasted 17 months,and major improvements in overjet,overbite,and alignment were achieved.The results were favorable,and stability was discovered during follow-up.CONCLUSION The application of ISW for treating skeletal class III malocclusion with anterior crossbite in a 17-year-old male patient resulted in exceptional outcomes.The treatment led to a marked improvement in the patient’s facial profile and to proper overjet,overbite,and midline alignment.These results were maintained over a one-year follow-up,indicating that a minimally invasive orthodontic approach can effectively address complex skeletal discrepancies in adolescent patients.This case illustrates that with the careful use of advanced orthodontic techniques,major skeletal challenges can be resolved without resorting to surgical procedures. 展开更多
关键词 Orthodontics Skeletal class iii malocclusion Anterior crossbite Improved superelastic Ni-Ti alloy wire Multi-bend edgewise archwire Intermaxillary elastics Case report
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Improved super-elastic Ti-Ni alloy wire for the angle class III patient with anterior open bite:A case report
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作者 Yu Fan Jian-Hong Yu Yuan-Hou Chen 《World Journal of Clinical Cases》 2025年第15期32-41,共10页
BACKGROUND Orthodontic treatment for open bite and crossbite cases is always challenging.In this paper,we demonstrate a skeletal class III patient with anterior open bite and crossbite whose problem was successfully c... BACKGROUND Orthodontic treatment for open bite and crossbite cases is always challenging.In this paper,we demonstrate a skeletal class III patient with anterior open bite and crossbite whose problem was successfully corrected with improved super-elastic Ti-Ni alloy wire(ISW).CASE SUMMARY A 19 years old male came to our clinic with a chief complaint of anterior open bite and crossbite and not able to chew food well.Clinical examination revealed an angle class III malocclusion with anterior open bite,crossbite and spaced arch.Ra-diographic and clinical examination showed a skeletal class III pattern.We used ISW to level the upper and lower arch and to correct the anterior open bite and crossbite.Intermaxillary elastics were also used to achieve a better interdigitation.Finally,adequate overbite,overjet and a desirable occlusion were achieved.The active treatment time took 2 years and 2 months.CONCLUSION In a case of class III angular malocclusion with open bite and crossbite in the ante-rior teeth,ideal results were achieved using the ISW technique and the patient was satisfied with the outcome. 展开更多
关键词 Dentistry Orthodontics Angle class iii malocclusion Anterior open bite Anterior open bite Improved super-elastic Ti-Ni alloy wire Case report
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Functional outcomes of radial head arthroplasty in Mason type III and IV fractures
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作者 Shikhar Bindal Harshaan Singh Pooni +1 位作者 Rajnish Garg Deepak Jain 《World Journal of Orthopedics》 2025年第6期56-66,共11页
BACKGROUND Radial head fractures constitute approximately one-third of all elbow fractures,significantly impacting the young and active population.While open reduction and internal fixation is the preferred treatment ... BACKGROUND Radial head fractures constitute approximately one-third of all elbow fractures,significantly impacting the young and active population.While open reduction and internal fixation is the preferred treatment for displaced fractures,its high complication rate in comminuted fractures has led to the increasing use of radial head arthroplasty(RHA).RHA provides improved functional outcomes with fewer complications,yet its long-term efficacy remains a topic of debate.AIM To evaluate the functional outcomes of patients undergoing RHA with a modular metallic prosthesis for comminuted Mason type III and IV radial head fractures.METHODS A prospective and retrospective hospital-based study was conducted at Dayanand Medical College and Hospital,Ludhiana over 32 months(January 2021-August 2023).A total of 26 patients with Mason type III and IV fractures were included,with six retrospective and 20 prospective cases.Functional outcomes were assessed using the Mayo Elbow Performance Score(MEPS),elbow range of motion,pain via Visual Analog Scale,and activities of daily living at immediate postoperative,three-month,and six-month follow-ups.RESULTS MEPS at 6 months follow up for 4 cases(15.38%)had good scores,and 22 cases(84.62%)had excellent scores,with a mean±SD of 97.31±6.67.Comparisons showed significant improvement from immediate post-operative to 3 months(P<0.0001),from immediate post-operative to 6 months(P<0.0001),and between 3 months and 6 months(P<0.0001).None of the patients had elbow instability after radial head replacement and 22 cases(84.62%)had no complications,while 3 cases(11.54%)had a stiff elbow,and 1 case(3.85%)had heterotopic ossification.CONCLUSION RHA is an effective treatment for comminuted radial head fractures,providing stable elbow function with minimal complications. 展开更多
关键词 Radial head arthroplasty Radial head replacement Mason classification Mason type iii and IV fractures Elbow fractures Functional outcomes Mayo elbow performance score Elbow dislocation
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Frankel-III型矫治器矫治替牙期AngleIII类错的临床研究 被引量:2
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作者 弓飞 崔广庆 王玲 《中外医疗》 2014年第9期51-52,共2页
目的探讨Frankel-III型功能矫治器治疗替牙期AngleIII类错的临床疗效。方法选择替牙期安氏III类错患者15例,应用Х线头影测量技术进行治疗前后的硬组织分析。结果进过治疗,前牙反覆反覆盖得到纠正,磨牙达到中性关系。SNA角、SNB角、NP-F... 目的探讨Frankel-III型功能矫治器治疗替牙期AngleIII类错的临床疗效。方法选择替牙期安氏III类错患者15例,应用Х线头影测量技术进行治疗前后的硬组织分析。结果进过治疗,前牙反覆反覆盖得到纠正,磨牙达到中性关系。SNA角、SNB角、NP-FH角、ANB角、MP-FH角和上下牙倾斜度的改变差异有统计学意义(P<0.01)。结论 Frankel-III型功能矫治器对替牙期功能性或轻度骨性的安氏III类错患者疗效显著。 展开更多
关键词 Frankel-iii型矫治器 安氏iii类错(牙合) 替牙期 头影测量分析
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利用响应面法优化巴卡亭III生成10-DAB的工艺条件 被引量:1
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作者 朱凤芝 程赪 +4 位作者 刘祥胜 张昆 王立爽 王敏 骆健美 《生物技术通报》 CAS CSCD 北大核心 2017年第4期238-246,共9页
10-脱乙酰基巴卡亭III(10-DAB)是紫杉烷类抗肿瘤药物多烯紫杉醇的前体物质。采用响应面法优化成团泛菌P2-A-8转化巴卡亭III生成10-DAB的工艺条件。利用Box-Behnken试验和方差分析,从菌体培养时间、菌体浓度OD600、底物终浓度、转化温度... 10-脱乙酰基巴卡亭III(10-DAB)是紫杉烷类抗肿瘤药物多烯紫杉醇的前体物质。采用响应面法优化成团泛菌P2-A-8转化巴卡亭III生成10-DAB的工艺条件。利用Box-Behnken试验和方差分析,从菌体培养时间、菌体浓度OD600、底物终浓度、转化温度、转化时间5个方面优化成团泛菌P2-A-8转化巴卡亭III生成10-DAB的工艺条件。结果表明,获得最佳转化工艺条件为:菌体经过二级培养12 h,转接后调节初始OD600为3.0,此时,加入溶解于甲醇的巴卡亭III溶液,使其终浓度为0.007 mg/m L,32℃,200 r/min下转化4 d,此时10-DAB的生成率达到24.5%,比优化前提高了446.8%。实验结果表明,响应面法优化成团泛菌P2-A-8转化巴卡亭III生成10-DAB的工艺条件合理可行。该研究成果对于多烯紫杉醇生物合成具有重要的应用价值。 展开更多
关键词 10-脱乙酰巴卡亭iii(10-DAB) 巴卡亭iii 成团泛菌 生物转化 工艺优化
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纳米铁用于饮用水中As(III)去除效果 被引量:22
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作者 黄园英 刘丹丹 刘菲 《生态环境学报》 CSCD 北大核心 2009年第1期83-87,共5页
主要考察实验室合成制得的纳米铁对毒性高,迁移能力强,在厌氧地下水中作为砷的主要存在形式的As(III)去除效果。通过批实验探讨吸附动力学,以及pH和纳米铁投加量对As(III)的去除影响。反应1h时,0.25g纳米铁对起始质量浓度为910μg·... 主要考察实验室合成制得的纳米铁对毒性高,迁移能力强,在厌氧地下水中作为砷的主要存在形式的As(III)去除效果。通过批实验探讨吸附动力学,以及pH和纳米铁投加量对As(III)的去除影响。反应1h时,0.25g纳米铁对起始质量浓度为910μg·L-1As(III)的去除率高达99%以上;反应遵循准一级反应动力学方程,标准化后的速率常数kSA为1.64mL·m-2·min-1。研究结果表明,具有高反应活性的纳米铁将成为饮用水中砷去除非常有效的吸附材料。 展开更多
关键词 纳米铁 AS(iii) 去除率 吸附
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Cr(III)在钝顶螺旋藻中的生物富集及其对钝顶螺旋藻生长的影响 被引量:5
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作者 许文涛 王颖 +3 位作者 罗云波 李元飒 张方方 黄昆仑 《食品科学》 EI CAS CSCD 北大核心 2009年第5期153-157,共5页
本实验研究了钝顶螺旋藻对Cr(III)的吸收和生物转化以及Cr(III)对钝顶螺旋藻的生长影响,用ICP-MS-HPLC对无机Cr(III)经钝顶螺旋藻吸收后的存在价态进行了分析。结果表明,钝顶螺旋藻对Cr(III)具有良好的富集和生物转化能力,在本实验中总... 本实验研究了钝顶螺旋藻对Cr(III)的吸收和生物转化以及Cr(III)对钝顶螺旋藻的生长影响,用ICP-MS-HPLC对无机Cr(III)经钝顶螺旋藻吸收后的存在价态进行了分析。结果表明,钝顶螺旋藻对Cr(III)具有良好的富集和生物转化能力,在本实验中总铬富集量可达到173.17mg/g,有机化程度可高达96.99%。ICP-MS-HPLC分析结果表明没有有毒的Cr(VI)的产生。此外,干重测定结果显示低浓度的Cr(III)(<234.38×10-6g/g)促进钝顶螺旋藻的生长,高浓度的Gr(Ⅲ)(>234.38×10-6g/g)则抑制共生长,并导致钝顶螺旋藻形态异常。在一定范围内钝顶螺旋藻能高效富集Cr(III),可作为安全营养的保健食品;钝顶螺旋藻抗高Cr(III)压,吸附高浓度Cr(III)的能力使其可用于环境中Cr(III)污染的去除。 展开更多
关键词 钝顶螺旋藻 CR(iii) ICP-MS-HPLC 生物富集 生物转化
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Effect of shaking time, ionic strength, temperature and pH value on desorption of Cr(III) adsorbed onto GMZ bentonite 被引量:5
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作者 陈永贵 贺勇 +2 位作者 叶为民 隋旺华 肖明明 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2013年第11期3482-3489,共8页
The Cr(III) desorption experiments of Gaomiaozi (GMZ) bentonite in aqueous solutions were performed. The variables affecting the desorption behaviors, such as contact time, concentration of the desorbent, pH value... The Cr(III) desorption experiments of Gaomiaozi (GMZ) bentonite in aqueous solutions were performed. The variables affecting the desorption behaviors, such as contact time, concentration of the desorbent, pH value of the solution, temperature and desorption isotherms, were investigated by the batch experiments. The results show that the adsorbed Cr(III) on GMZ bentonite can be easily extracted by the desorbent. Kinetics examination shows that desorption is slower than adsorption, and the desorption rate increases with time and reaches the equilibrium after 3 h. The final desorption ratios of Cr(III) are 89.4%, 56.5%and 77.2%in the desorption solution with 0.1 mol/L HCl, 1 mol/L NaCl, and 1 mol/L CaCl2, respectively, and the concentration can promote the desorption progress. Furthermore, the results of successive regeneration cycles indicate that the bentonite has a good regeneration ability and reusability. The pH value is an important factor in the Cr(III) desorption from the GMZ bentonite. The results of adsorption and desorption isotherms show that both adsorption and desorption isotherms are consistent with the Freundlich equation. The comparison of adsorption and desorption isotherms implies that the adsorption/desorption hysteresis is negligible and the transport of Cr(III) in bentonite can be described by a reversible adsorption process. 展开更多
关键词 GMZ bentonite Cr(iii DESORPTION isotherms
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CRTSIII型板式无砟轨道桥梁段环境振动测试分析 被引量:9
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作者 张光明 贺玉龙 +1 位作者 梅昌艮 杨立中 《噪声与振动控制》 CSCD 2014年第3期144-147,共4页
为研究CRTS III型板式无砟轨道环境振动特点,对成灌铁路某桥梁段地面振动进行现场测试,分析不同测点地面振动加速度时程特点、频谱特征,并进行1/3倍频程分析和Z振级的衰减分析。结果表明,列车以180 km/h速度通过时,地面振动持续时... 为研究CRTS III型板式无砟轨道环境振动特点,对成灌铁路某桥梁段地面振动进行现场测试,分析不同测点地面振动加速度时程特点、频谱特征,并进行1/3倍频程分析和Z振级的衰减分析。结果表明,列车以180 km/h速度通过时,地面振动持续时间约6 s,距线路中心10 m处振动峰值加速度为60 mm/s2;在10 m处振动频谱分布范围在20~90 Hz,高频振动随距离衰减更快,大于20 m处振动主要以15~45 Hz为主;地面振动Z振级的衰减符合对数衰减规律。 展开更多
关键词 振动与波 环境振动 iii型板式无砟轨道 铁路桥梁 频谱
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鸭坦布苏病毒E蛋白结构域III原核表达产物诱导中和抗体的研究 被引量:7
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作者 余磊 闫大为 +7 位作者 高旭元 肖亚莉 刘绍琼 李雪松 闫丽萍 滕巧泱 李国新 李泽君 《中国动物传染病学报》 CAS 2014年第2期1-6,共6页
黄病毒E蛋白结构域Ⅲ能够介导病毒与宿主受体结合以及诱导产生中和抗体,本研究利用原核表达系统表达了鸭坦布苏病毒E蛋白结构域Ⅲ,并研究了其免疫原性。按照大肠杆菌偏好性密码子对鸭坦布苏病毒E蛋白结构域Ⅲ核苷酸序列进行优化并合成后... 黄病毒E蛋白结构域Ⅲ能够介导病毒与宿主受体结合以及诱导产生中和抗体,本研究利用原核表达系统表达了鸭坦布苏病毒E蛋白结构域Ⅲ,并研究了其免疫原性。按照大肠杆菌偏好性密码子对鸭坦布苏病毒E蛋白结构域Ⅲ核苷酸序列进行优化并合成后,克隆至pCold-TF载体构建重组质粒pCold-TF-optiEDIII。Western blot证实重组蛋白能与鸭坦布苏病毒特异性血清发生反应。用纯化的重组蛋白免疫BLAB/c小鼠3次,间接ELISA和间接免疫荧光实验证实E蛋白结构Ⅲ诱导了鸭坦布苏病毒特异性的体液免疫反应。中和实验证实鸭坦布苏病毒E蛋白结构域Ⅲ可诱导产生中和抗体。本研究为进一步研制鸭坦布苏病毒诊断抗原和亚单位疫苗奠定了基础。 展开更多
关键词 鸭坦布苏病毒 E蛋白 结构域iii 中和抗体
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GPS III首星信号结构及其特性分析 被引量:3
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作者 卢晓春 王萌 +1 位作者 王雪 饶永南 《电子与信息学报》 EI CSCD 北大核心 2021年第8期2317-2323,共7页
导航信号是连接空间卫星和地面用户端的枢纽,是卫星导航定位系统中最重要的部分之一,其优劣直接影响后续的定位、测速、授时等性能。该文利用国家授时中心40 m高增益天线对GPS III首星进行多次信号采集及比对分析工作,从GPS III L1频点... 导航信号是连接空间卫星和地面用户端的枢纽,是卫星导航定位系统中最重要的部分之一,其优劣直接影响后续的定位、测速、授时等性能。该文利用国家授时中心40 m高增益天线对GPS III首星进行多次信号采集及比对分析工作,从GPS III L1频点调制矢量及频谱分布入手,对L1频点载波相位存在“滑动”现象进行了深入剖析,得出该现象主要源于L1M信号。利用C/A码解析出授权信号M码,定量分析了L1频点信号分量的S曲线过0点偏差以及功率占比,其中L1M S曲线过0点偏差达到0.058 ns,信号功率占比最高可达6.78。该文研究成果可为研究新一代GPS信号的调制方式提供支撑,也可为后续北斗导航卫星系统信号体制设计以及信号质量评估方法提供参考。 展开更多
关键词 GPS iii 导航信号 信号结构 信号解析 信号评估
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宫腔镜辅助冷刀锥切术与传统冷刀锥切术治疗子宫颈上皮内瘤变III期的临床疗效比较 被引量:27
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作者 董华娟 邱莉 白凤琴 《实用医院临床杂志》 2016年第4期73-75,共3页
目的 探讨宫腔镜辅助冷刀锥切术治疗子宫颈上皮内瘤变(cervical intraepithelial neoplasia,CIN)III期的临床疗效及可行性。方法 我科2014年1~12月收治CINIII患者120例,分为观察组和对照组各60例,观察组行宫腔镜辅助下的宫颈冷刀锥切... 目的 探讨宫腔镜辅助冷刀锥切术治疗子宫颈上皮内瘤变(cervical intraepithelial neoplasia,CIN)III期的临床疗效及可行性。方法 我科2014年1~12月收治CINIII患者120例,分为观察组和对照组各60例,观察组行宫腔镜辅助下的宫颈冷刀锥切术,对照组行传统的宫颈冷刀锥切术,比较两组的手术时间、术中出血量、术后出血率、术后高危型HPV转阴率等。结果 观察组手术时间、术中出血量及术后出血率均明显低于对照组,差异有统计学意义(P〈0.05);两组术后3月、6月HPV转阴率比较差异无统计学意义(P〉0.05),术后1年观察组HPV转阴率明显高于对照组,差异有统计学意义(P〈0.05)。结论 与传统的宫颈冷刀锥切术对比,宫腔镜辅助下的宫颈冷刀锥切术治疗CINIII止血效果确切,可明显缩短手术时间、减少术中出血量、降低术后出血率、提高高危型HPV转阴率。 展开更多
关键词 宫颈上皮内瘤样病变iii 冷刀锥形切除术 宫腔镜
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阴极荧光联合分析系统在III族氮化物研究中的应用 被引量:2
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作者 赵红 张荣 +8 位作者 谢自力 刘斌 修向前 陆海 李亮 刘战辉 江若琏 韩平 郑有炓 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2008年第6期1184-1188,共5页
利用高性能阴极荧光(CL)联合分析系统对几类典型的III族氮化物材料进行测试分析.在光谱研究中,利用CL紫外可见光谱系统,对c面蓝宝石衬底上生长的AlxGa1-xN薄膜进行阴极荧光单色谱测试分析,揭示了CL的激发强度与发光带之间的变化关系.进... 利用高性能阴极荧光(CL)联合分析系统对几类典型的III族氮化物材料进行测试分析.在光谱研究中,利用CL紫外可见光谱系统,对c面蓝宝石衬底上生长的AlxGa1-xN薄膜进行阴极荧光单色谱测试分析,揭示了CL的激发强度与发光带之间的变化关系.进一步研究了掺Mg的Al0.5Ga0.5N薄膜的带边和杂质能级发光机理.利用CL近红外光谱系统对InN薄膜的阴极发光特性进行了研究,验证了InN实际光学带边Eg在0.77eV附近.利用微区分析(CLmapping)系统,可在紫外波段确切地给出材料不同波长的荧光发光区这一特点,对HVPE生长的自支撑GaN衬底进行了SEM和CL微区的对比分析,研究了GaN的位错类型和分布. 展开更多
关键词 阴极荧光联合分析系统 iii族氮化物 阴极荧光特性
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伯胺(N1923)-正辛烷在硫酸体系中萃取和反萃Fe(III)机理的研究 被引量:2
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作者 刘会洲 于淑秋 陈家镛 《金属学报》 SCIE EI CAS CSCD 北大核心 1991年第4期B228-B231,共4页
对伯胺—正辛烷萃取体系在萃取和反萃过程中有机相组成和水含量的变化用FTIR和光子相关谱进行分析研究。结果表明:伯胺与水相酸作用生成了阳离子型表面活性剂的结构,在有机相中易生成反相胶团。其萃取和反萃过程的实质是反相胶团内外的... 对伯胺—正辛烷萃取体系在萃取和反萃过程中有机相组成和水含量的变化用FTIR和光子相关谱进行分析研究。结果表明:伯胺与水相酸作用生成了阳离子型表面活性剂的结构,在有机相中易生成反相胶团。其萃取和反萃过程的实质是反相胶团内外的阳离子交换过程。Fe(Ⅲ)以水合形式萃取入有机相中,Fe(Ⅲ)的水解可能发生在反相胶团的微环境中。 展开更多
关键词 FE(iii) 萃取 仲碳 伯胺
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CRTS III型无砟轨道板生产管理信息系统设计与实现 被引量:10
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作者 梁策 王荣波 王辉麟 《铁路计算机应用》 2016年第12期35-39,共5页
针对板场借助信息化手段辅助管理轨道板快速、批量生产的需求,研发了CRTS III型无砟轨道板生产管理信息系统。系统基于协同工作平台,采用参数配置和二次开发的方式实现。经过7个环节扫描RFID电子标签和12个生产环节的质量控制,实现了生... 针对板场借助信息化手段辅助管理轨道板快速、批量生产的需求,研发了CRTS III型无砟轨道板生产管理信息系统。系统基于协同工作平台,采用参数配置和二次开发的方式实现。经过7个环节扫描RFID电子标签和12个生产环节的质量控制,实现了生产和仓储各阶段信息的关联。整个生产过程的信息实现了整合,生产及质量信息可以追溯,使得查询、归档、统计和分析更加便捷。将III型板生产管理过程从传统记账式单机信息化,提升到系统性的信息化程度。目前,此系统已在多条高速铁路线路的板场中应用,验证了系统功能的可行性、准确性和稳定性。 展开更多
关键词 CRTSiii 无砟轨道板 生产管理
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