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探讨盆腔恶性肿瘤术后放疗骨盆受量与骨髓抑制相关性

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宁夏医学杂志 2024年第3期46卷 230-233页

作者：郭莹杨亚丽刘芳姜阳刘医辉冶秀鹏马宣宁夏回族自治区人民医院放射治疗科宁夏银川750002 南京医科大学附属明基医院苏州院区江苏苏州215010

目的研究盆腔恶性肿瘤术后放疗骨盆受量与骨髓抑制之间的相关性,为骨盆受量限值提供参考依据,降低骨髓抑制的发生率。方法回顾性分析进行盆腔恶性肿瘤术后调强放疗的患者93例,观察治疗过程中骨髓抑制发生的情况,评判同期放化疗与单纯放... 详细信息

目的研究盆腔恶性肿瘤术后放疗骨盆受量与骨髓抑制之间的相关性,为骨盆受量限值提供参考依据,降低骨髓抑制的发生率。方法回顾性分析进行盆腔恶性肿瘤术后调强放疗的患者93例,观察治疗过程中骨髓抑制发生的情况,评判同期放化疗与单纯放疗对骨髓抑制的影响,同时分析骨髓抑制与骨盆受量参数平均剂量Dmean及V45、V40、V35、V30、V25、V20、V15、V10的相关性。结果全组病例中出现放疗后骨髓抑制主要表现为白细胞及中性粒细胞降低,白细胞的骨髓抑制发生率为95.70%、中性粒细胞的骨髓抑制发生率为77.42%;55例同期放化疗患者中有30例出现3~4级骨髓抑制,主要表现为白细胞及中性粒细胞下降,与单纯放疗患者相比,其3~4级骨髓抑制发生率明显升高(P<0.05);骨盆受量参数V10与严重的白细胞下降有关(P<0.05),V15与严重的中性粒细胞下降有关(P<0.05)。结论盆腔肿瘤术后放疗患者骨髓抑制与骨盆低剂量照射有关,术后同期放化疗较单纯放疗更容易导致骨髓抑制,应注意保护骨盆,降低骨盆低剂量照射区域。

关键词：盆腔恶性肿瘤放疗骨髓抑制骨盆受量

Layered Structural PBAT Composite Foams for Efficient Electromagnetic Interference Shielding

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Nano-Micro Letters 2024年第2期16卷 273-286页

作者： Jianming yang Hu Wang yali Zhang Hexin Zhang Junwei Gu School of Chemistry and Chemical Engineering Anhui University of TechnologyMa’anshanAnhui 243032People’s Republic of China Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072ShaanxiPeople’s Republic of China School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuPeople’s Republic of China

The utilization of eco-friendly,lightweight,high-efficiency and high-absorbing electromagnetic interference(EMI)shielding composites is imperative in light of the worldwide promotion of sustainable *** this work,magnetic poly(butyleneadipate-coterephthalate)(PBAT)microspheres were firstly synthesized via phase separation method,then PBAT composite foams with layered structure was constructed through the supercritical carbon dioxide foaming and scraping *** merits of integrating ferroferric oxideloaded multi-walled carbon nanotubes(Fe3O4@MWCNTs)nanoparticles,a microcellular framework,and a highly conductive silver layer have been judiciously orchestrated within this distinctive layered *** are consumed throughout the process of“absorption-reflection-reabsorption”as much as possible,which greatly declines the secondary radiation *** biodegradable PBAT composite foams achieved an EMI shielding effectiveness of up to 68 dB and an absorptivity of 77%,and authenticated favorable stabilization after the tape adhesion experiment.

关键词： Electromagnetic interference shielding Layered structure Supercritical carbon dioxide foaming Poly(butyleneadipateco-terephthalate) Microcellular

Achieving a high dielectric tunability in strain-engineered tetragonal K_(0.5)Na_(0.5)NbO_(3) films

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npj Computational Materials 2021年第1期7卷 571-579页

作者： Lanxia Hao yali yang Yu Huan Hongbo Cheng Yu-Yao Zhao Yingying Wang Jing Yan Wei Ren Jun Ouyang Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinanChina Institute of Advanced Energy Materials and Chemistry Shandong Provincial Key Laboratory of Molecular EngineeringSchool of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)JinanChina International Centre for Quantum and Molecular Structures Department of PhysicsShanghai UniversityShanghaiChina School of Materials Science and Engineering University of JinanJinanChina

Using a modified Landau-Devonshire type thermodynamic potential,we show that dielectric tunabilityηof a tetragonal ferroelectric film can be analytically *** a given electric field E,ηis a function of the remnant polarization(P_(0)^(f))and the smallfield relative dielectric permittivity(χ_(0)^(f)),which are commonly measured material *** a survey of materials,a largeη~80%is predicted to be achievable in a(001)-oriented tetragonal(K_(0.5),Na_(0.5))NbO_(3)*** strain-stabilized tetragonal phase is verified by density functional theory(DFT)calculations.(K_(0.5),Na_(0.5))NbO_(3)films based on this design were successfully prepared via a sputtering deposition process on SrRuO_(3)-buffered(100)SrTiO_(3) *** resulted epitaxial films showed a sizable Pf0(~0.21C m^(−2))and a largeχ_(0)^(f)(~830–860),as well as a largeηclose to the theoretical *** measured dielectric tunabilities as functions of E are well described by the theoreticalη(E)curves,validating our integrated approach rooted in a theoretical understanding.

关键词： properties value film

离子色谱法测定玉溪北城“涩水”中4种无机阴离子

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云南化工 2024年第1期51卷 67-70页

作者：李松陈娟李亮星解佳睿杨亚丽玉溪师范学院化学生物与环境学院云南玉溪653100 玉溪师范学院附属中学云南玉溪653100

为了研究玉溪市北城“涩水”中无机阴离子的含量是否符合《生活饮用水卫生标准》中的限值,采用离子色谱法测定了玉溪北城“涩水”中F^(-)、Cl^(-)、NO_(3)^(-)、SO_(4)^(2-)的含量。结果表明,玉溪北城“涩水”中1月、2月、3月和4月的F^... 详细信息

为了研究玉溪市北城“涩水”中无机阴离子的含量是否符合《生活饮用水卫生标准》中的限值,采用离子色谱法测定了玉溪北城“涩水”中F^(-)、Cl^(-)、NO_(3)^(-)、SO_(4)^(2-)的含量。结果表明,玉溪北城“涩水”中1月、2月、3月和4月的F^(-)、Cl^(-)、NO_(3)^(-)、SO_(4)^(2-)四种无机阴离子含量低于《生活饮用水卫生标准》中的限值。该方法标准曲线相关系数在0.9990以上,样品加标回收率在93.73%~109.20%之间,检出的数据准确可靠。结果为进一步探究“涩水”的水源保护和商用价值开发提供了数据支撑。

关键词：离子色谱法涩水无机阴离子测定准确性

Building Better Full Manganese‑Based Cathode Materialsfor Next‑Generation Lithium‑Ion Batteries

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Electrochemical Energy Reviews 2023年第1期6卷 148-185页

作者： Jin Song Hangchao Wang Yuxuan Zuo Kun Zhang Tonghuan yang yali yang Chuan Gao Tao Chen Guang Feng Zewen Jiang Wukun Xiao Tie Luo Dingguo Xia Beijing Key Laboratory of Theory and Technology for Advanced Battery Materials School of Materials Science and EngineeringPeking UniversityBeijing 100871China College of Chemistry and Molecular Science Wuhan UniversityWuhan 430072HubeiChina College of Engineering Peking UniversityBeijing 100871China

Lithium-manganese-oxides have been exploited as promising cathode materials for many years due to their environmental friendliness,resource abundance and low ***,inevitable problems,such as Jahn-Teller distortion,manganese dissolution and phase transition,still frustrate researchers;thus,progress in full manganese-based cathode materials(FMCMs)has been relatively slow and limited in recent ***,with the fast growth of vehicle electrification and large-scale energy-storage grids,there has been an urgent demand to develop novel FMCMs again;actually,new waves of research based on FMCMs are being ***,we systematically review the history of FMCMs,correctly describe their structures,evaluate the advantages and challenges,and discuss the resolution strategies and latest ***,beyond FMCMs,a profound discussion of current controversial issues,such as oxygen redox reaction,voltage decay and voltage hysteresis in Li_(2)MnO_(3)-based cathode materials,is also *** review summarizes the effectively optimized approaches and offers a few new possible enhancement methods from the perspective of the electronic-coordination-crystal structure for building better FMCMs for next-generation lithium-ion batteries.

关键词： Energy storage Lithium-ion batteries Cathode materials Manganese oxides

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安塞区托幼机构儿童健康状况分析

临床医学研究与实践 2024年第21期9卷 1-4,41页

作者：樊雪丽杨亚莉李芳李元霞李夙凌延安市安塞区妇幼保健院陕西延安717400 延安大学附属医院陕西延安716000

目的分析2020—2022年安塞区29所托幼机构儿童体检数据,掌握儿童基本健康状况,明确存在的突出问题及相关影响因素。方法回顾性分析2020—2022年安塞区29所托幼机构3~7岁17306名儿童的体检数据。结果安塞区托幼机构儿童体检常见疾病按检... 详细信息

目的分析2020—2022年安塞区29所托幼机构儿童体检数据,掌握儿童基本健康状况,明确存在的突出问题及相关影响因素。方法回顾性分析2020—2022年安塞区29所托幼机构3~7岁17306名儿童的体检数据。结果安塞区托幼机构儿童体检常见疾病按检出率由高至低排序依次为龋齿、佝偻病体征、肥胖、贫血、消瘦、生长迟缓、视力低常及发育行为预警征象筛查未通过。2020—2022年儿童的肥胖、视力低常、龋齿、佝偻病体征及贫血检出率呈逐年上升趋势,生长迟缓及消瘦发病率呈逐年下降趋势。儿童的肥胖、视力低常、龋齿、佝偻病体征及发育行为预警征象筛查未通过检出率随着年龄增长而增高,差异具有统计学意义(P<0.05);儿童的生长迟缓、消瘦及贫血检出率随着年龄增长而降低,差异具有统计学意义(P<0.05)。乡镇儿童的生长迟缓、消瘦、佝偻病体征及贫血检出率高于城区,差异具有统计学意义(P<0.05)。结论安塞区托幼机构儿童健康状况不容乐观,要从根本上改善安塞区托幼机构儿童健康状况,需要保健机构、教育托幼机构及家庭三方协作配合。

关键词：安塞区托幼机构儿童健康状况

人工髋关节置换术治疗股骨头缺血性坏死合并同侧股骨粗隆间骨折

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中国骨与关节损伤杂志 2024年第2期39卷 124-127页

作者：毕红宾杨亚丽李岩范华雨李哲邢庆胜河南省洛阳正骨医院(河南省骨科医院)髋关节外科河南郑州450008 河南省洛阳正骨医院(河南省骨科医院)健康管理中心河南郑州450008

目的研究人工髋关节置换术治疗股骨头缺血性坏死合并同侧股骨粗隆间骨折的可行性及临床疗效。方法回顾性分析自2019-10—2021-03诊治的18例股骨头缺血性坏死合并同侧股骨粗隆间骨折,一期采用生物型加长股骨柄行人工髋关节置换术联合... 详细信息

目的研究人工髋关节置换术治疗股骨头缺血性坏死合并同侧股骨粗隆间骨折的可行性及临床疗效。方法回顾性分析自2019-10—2021-03诊治的18例股骨头缺血性坏死合并同侧股骨粗隆间骨折,一期采用生物型加长股骨柄行人工髋关节置换术联合骨折复位内固定术治疗。比较术前与末次随访时患者髋关节功能Harris评分,随访并记录并发症发生情况。骨折愈合情况根据骨折临床愈合标准进行评定;临床疗效根据髋关节功能Harris评分评定。结果 18例均获得随访,随访时间20~36个月,平均32.0个月。术后切口按时换药,均一期愈合并拆线,围手术期未出现心脑血管疾病等并发症。骨折均达到临床愈合,愈合时间3~6个月,平均5.0个月。随访期间均未出现感染、假体松动脱位、假体周围骨折、下肢深静脉血栓形成等并发症,末次随访时所有患者均可独立无辅助行走。本组末次随访时髋关节功能Harris评分为(86.89±4.64)分,较术前(53.11±3.45)分明显提高,差异有统计学意义(P<0.05)。末次随访时临床疗效评价:优10例,良6例,可2例,优良率为88.9%。结论一期人工髋关节置换术联合骨折复位内固定治疗股骨头缺血性坏死合并同侧股骨粗隆间骨折临床可行,疗效满意;股骨侧假体建议选择生物型全涂层加长股骨柄假体,初始稳定性好,同时具有骨折固定作用。

关键词：股骨头缺血性坏死股骨粗隆间骨折人工髋关节置换术内固定

Eco-friendly polysaccharide coatings for antifouling and dragreduction and potential application for marine devices

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Friction 2024年第4期12卷 726-744页

作者： Hao yang Liguo QIN Wenhui ZHAO Fagla Jules MAWIGNON Hui GUO Yongkang WU yali ZHANG Guangneng DONG Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Institute of Design Science and Basic ComponentsSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Biomedical Information of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China Department of Endocrinology First Affiliated Hospital of Medical CollegeXi'an Jiaotong UniversityXi’an 710061China

Traditional antifouling agents usually have a certain toxic effect on marine environments and non-target *** this study,Dictyophora indusiata polysaccharide(DIP)was applied as a natural antifouling surface modifier to prepare the surface coating for marine *** DIP coatings were prepared:*** spore polysaccharide(DISP),*** volva polysaccharide(DIVP),and *** embryonic body polysaccharide(DIEP).The antifouling,tribological,and anticorrosion behavior of the coatings were *** revealed that the three kinds of DIP coatings had excellent antifouling properties,which could effectively prevent the adhesion of Chlorella and the attachment of water-based and oily stains on the ***,the coatings showed great mechanical stability and could maintain an extremely low coefficient of friction(COF<0.05)after continuous *** drag reduction rate of the coated surfaces reached 5%,showing a powerful lubrication ***,the DIP coatings presented an outstanding corrosion resistance,where the equivalent circuit impedances were 4-9 orders of magnitude higher than the control *** research showed a promising prospect of surface coating fabrication with DIP for marine devices to achieve the purpose of antifouling and drag reduction.

关键词： Dictyophora indusiata polysaccharide(DIP)coating antifouling anticorrosion lubrication and drag reduction

Frictional contact analysis of a rigid solid with periodic surface sliding on the thermoelectric material

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Applied Mathematics and Mechanics(English Edition) 2024年第1期45卷 179-196页

作者： yali ZHANG Yueting ZHOU Shenghu DING School of Mathematics and Statistics Ningxia UniversityYinchuan 750021China School of Aerospace Engineering and Applied Mechanics Tongji UniversityShanghai 200092China

Understanding and characterizing rough contact and wavy surfaces are essential for developing effective strategies to mitigate wear,optimize lubrication,and enhance the overall performance and durability of mechanical *** sliding friction contact problem between a thermoelectric(TE)half-plane and a rigid solid with a periodic wavy surface is the focus of this *** simplify the problem,we utilize mixed boundary conditions,leading to a set of singular integral equations(SIEs)with the Hilbert *** analytical solutions for the energy flux and electric current density are obtained by the variable transform method in the context of the electric and temperature *** contact problem for the elastic field is transformed into the second-kind SIE and solved by the Jacobi ***,the smoothness of the wavy contact surface ensures that there are no singularities in the surface contact stress,and ensures that it remains free at the contact *** on the plane strain theory of elasticity,the analysis primarily examines the correlation between the applied load and the effective contact *** distribution of the normal stress on the surface with or without TE loads is discussed in detail for various friction ***,the obtained results indicate that the in-plane stress decreases behind the trailing edge,while it increases ahead of the trailing edge when subjected to TE loads.

关键词： wavy surface periodic contact thermoelectric(TE)material Hilbert integral kernel