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不同地域玉米秸化学成分、瘤胃发酵特性和能量价值比较

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动物营养学报 2014年第2期26卷 496-503页

作者：刘强林张元庆白元生孟庆翔周振明任丽萍赵金维高书文动物营养学国家重点实验室中国农业大学动物科技学院北京100193 山西省农科院畜牧兽医研究所太原030032 山西省生态畜牧产业管理站太原030001 北京金维福仁清真食品有限公司北京102611 山西省忻州市畜禽繁育工作站忻州034000

本试验旨在以采自北京大兴(BJ)、河北文安(HB)、吉林公主岭(JL)、山西太原(SX)、江苏徐州(JS)5个地域的同一品种玉米秸作为试验材料,通过化学分析和体外人工瘤胃产气法比较其化学成分、瘤胃发酵特性及能量价值的差异。采用单因素完全随... 详细信息

本试验旨在以采自北京大兴(BJ)、河北文安(HB)、吉林公主岭(JL)、山西太原(SX)、江苏徐州(JS)5个地域的同一品种玉米秸作为试验材料,通过化学分析和体外人工瘤胃产气法比较其化学成分、瘤胃发酵特性及能量价值的差异。采用单因素完全随机化试验设计。结果表明:不同地域来源玉米秸的粗蛋白质、粗脂肪和粗灰分含量最高的玉米秸分别高出含量最低的49.0%(P0.05);不同地域的玉米秸体外有机物消化率、总可消化养分含量、消化能、代谢能和增重净能值最高值较最低值分别高出20.1%、13.6%、13.7%、13.6%和43.2%(P<0.01)。由本试验可知,不同地域来源的玉米秸在化学成分、体外瘤胃发酵参数(除乙酸和异丁酸摩尔比例外)、产气量、有机物消化率含量和能量价值方面存在显著差异,在采用玉米秸作为肉牛粗饲料时,应对其化学成分和能量价值进行实际测定或估测。

关键词：地域来源玉米秸化学成分瘤胃发酵特性产气量能量价值

硼中子俘获治疗的理论基础及其在乳腺癌中的相关研究

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肿瘤预防与治疗 2022年第10期35卷 957-962页

作者：何晓梁瞿凡赖芋州刘嫱霖田超西南医科大学临床医学院四川泸州646000 电子科技大学临床医学院成都611731 成都中医药大学临床医学院成都601132

硼中子俘获治疗(boron neutron capture therapy,BNCT)作为当前国际上最先进的癌症治疗手段之一,展现了美好的前景。BNCT的原理是将具有亲肿瘤组织的无毒性含硼药物注入患者体内,待硼药物聚集在肿瘤组织后,采用超热中子照射肿瘤部位。... 详细信息

硼中子俘获治疗(boron neutron capture therapy,BNCT)作为当前国际上最先进的癌症治疗手段之一,展现了美好的前景。BNCT的原理是将具有亲肿瘤组织的无毒性含硼药物注入患者体内,待硼药物聚集在肿瘤组织后,采用超热中子照射肿瘤部位。中子和癌细胞中的硼-10核素发生核反应,从而摧毁癌细胞。乳腺癌是威胁女性生存健康最常见的一类恶性肿瘤,发病率逐年上升,在治疗方式上也探索出了多种模式,包括内分泌治疗、靶向治疗以及放化疗、免疫治疗等。BNCT在治疗中枢神经系统肿瘤、头颈部恶性肿瘤等领域取得了令人满意的成果,但其在乳腺癌领域的相关研究目前鲜有报道。本文主要论述BNCT治疗肿瘤的理论基础、所用的中子源和硼递送剂的近期研究进展,重点综述了BNCT在乳腺癌中的相关研究,以期为乳腺癌治疗尤其是难治性乳腺癌提供新的研究方向。

关键词：硼中子俘获治疗中子源硼递送剂乳腺癌

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高频超声在皮肤基底细胞癌管理中的应用进展

皮肤病与性病 2024年第4期46卷 230-233页

作者：刘嫱霖高春芳汪红平储旭春马骄阳上海中医药大学附属普陀医院皮肤科上海200062 上海中医药大学附属普陀医院内分泌科上海200062 上海中医药大学附属普陀医院影像科上海200062

皮肤基底细胞癌(basal cell carcinoma,BCC)是全世界范围内最常见的皮肤非黑素瘤之一。高频超声作为一种无创、安全的实时成像工具,能够为临床实践中BCC的诊疗及管理提供有价值的信息,包括肿瘤的形态特征、浸润深度及与周围组织的关系,... 详细信息

皮肤基底细胞癌(basal cell carcinoma,BCC)是全世界范围内最常见的皮肤非黑素瘤之一。高频超声作为一种无创、安全的实时成像工具,能够为临床实践中BCC的诊疗及管理提供有价值的信息,包括肿瘤的形态特征、浸润深度及与周围组织的关系,这对于评估病变的性质、范围、确定治疗方案及后续的管理都具有重要意义。

关键词：高频超声基底细胞癌管理进展

安徽省恙虫病高发地区人群知信行状况调查及影响因素分析

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海峡预防医学杂志 2022年第1期28卷 20-23页

作者：郭倩龚磊刘强林程孝连李俊宋丹丹高学欢吴家兵安徽医科大学公共卫生学院安徽合肥230032 安徽省疾病预防控制中心安徽合肥230601 亳州市疾病预防控制中心安徽亳州236800 蚌埠市疾病预防控制中心安徽蚌埠233020 怀远县疾病预防控制中心安徽怀远233499

目的了解恙虫病高发地区人群对恙虫病的知识、态度和行为状况,为开展针对性健康教育提供依据。方法2019年9~10月,选择安徽省亳州市、阜阳市及蚌埠市3个恙虫病高发地区作为研究点,根据2016—2018年累计报告恙虫病病例数排序,确定研究现场... 详细信息

目的了解恙虫病高发地区人群对恙虫病的知识、态度和行为状况,为开展针对性健康教育提供依据。方法2019年9~10月,选择安徽省亳州市、阜阳市及蚌埠市3个恙虫病高发地区作为研究点,根据2016—2018年累计报告恙虫病病例数排序,确定研究现场,对当地居民开展问卷调查,收集恙虫病知信行状况并统计分析。结果共收集有效问卷320份,调查对象中,蚌埠市占30.3%(97人),亳州市38.1%(122人),阜阳市31.6%(101人),男女性别比1∶1.7,≥50岁居民占90.0%(288人);多因素logistic回归分析显示,亳州市、阜阳市人群知识得分高于蚌埠市(OR=2.20、2.39),阜阳市态度得分较高(OR=1.89);年龄≥50岁者态度得分和行为得分均偏低(OR均<1)。结论安徽省恙虫病高发地区人群知信行得分总体较低,需进一步加强恙虫病健康教育工作。

关键词：恙虫病知识态度行为健康教育

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氨基酸原料中游离氨基酸测定及风险评估

山东农业科学 2016年第4期48卷 129-133页

作者：吕乐福赵旭东张红卫刘强林高翔杜建光国家化肥产品质量监督检验中心(山东) 山东临沂276000 临沂市产品质量监督检验所山东临沂276000

利用氨基酸自动分析仪对氨基酸原料进行氨基酸种类和含量测定分析,采用原子吸收分光光度计和可见光分光光度计测定了Pb、Cd、Cr和As有害元素含量并进行分析比较。结果表明：氨基酸原料A1、A2和A3样品中均含有17种氨基酸,其总含量分别为5... 详细信息

利用氨基酸自动分析仪对氨基酸原料进行氨基酸种类和含量测定分析,采用原子吸收分光光度计和可见光分光光度计测定了Pb、Cd、Cr和As有害元素含量并进行分析比较。结果表明：氨基酸原料A1、A2和A3样品中均含有17种氨基酸,其总含量分别为51.63%、46.29%和61.90%。该测定方法精密度和准确度高,平均回收率为96.23%-100.77%,相对偏差RSD为0.67%-2.15%。三种氨基酸原料中有害元素Pb、Cd、Cr和As含量分别为6.46-91.41、4.35-13.21、7.53-13.12 mg/kg和1.34-2.08 mg/kg,在含氨基酸肥料生产中,氨基酸原料经过稀释后可以达到国家相关标准限量值要求,但仍需加强监管。

关键词：肥料氨基酸重金属风险评估

Information retrieval methods for high resolution γ-ray spectra

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Nuclear Science and Techniques 2012年第6期23卷 332-336页

作者： WU Hexi ZHANG Huaiqiang liu Qingcheng YANG Bo WEI qianglin YUAN Xinyu Engineering Research Center of Nuclear Technology Application(East China Institute of Technology Fuzhou) Ministry of Education School of Nuclear Engineering and Geophysics East China Institute of Technology

A program based on MATLAB 7.0 platform was developed to locate characteristic peak position and calculate net area of characteristic *** formula for the calculation of relative standard deviation of net peak area by Sterlinski’s method was found excellent in searching single peaks and resolving overlapping peaks in high resolution gamma-ray *** function fitting method using Levenberg-Marquardt algorithm was applied to calculate net area of peaks.A standard test spectrum supplied by the IAEA in 1995 was analyzed by the program and another two widely used commercial *** analysis results show the program was superior to the latter two in searching single peaks and resolving overlapping *** optimized fitting indexes are found between 0.962 and 0.996,which shows that the program adopted is feasible and accurate for extracting the net peak area in high resolution gamma-ray spectra.

关键词： γ射线谱 Levenberg-Marquardt算法光谱分辨率检索方法相对标准偏差国际原子能机构信息 MATLAB

Corrosion behavior of high-level waste container materials Ti and Ti-Pd alloy under long-term gamma irradiation in Beishan groundwater

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Chinese Physics B 2021年第5期30卷 93-100页

作者： qianglin Wei Yuhong Li Yanliang Huang Dongyan Yang Bo Yang Yibao liu School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China Institute of Oceanology Chinese Academy of SciencesQingdao 266071China

Titanium and titanium-palladium alloys are important potential materials for nuclear waste container,which will endure both intenseγ-irradiation and groundwater ***,it is very important to investigate the corrosion behavior of the container *** this research,the cumulative dose effect of TA8-1 type titanium-palladium alloy(TA8-1)and TA2-type pure titanium(TA2)underγ-irradiation was studied based on the geological disposal of nuclear *** irradiation experiments were performed at room temperature using^(60)Co gamma sources with a 5.0-kGy·h^(-1)intensity for 40,80 or 160 days,*** pH value and conductivity of Beishan groundwater were *** results showed that the pH value changed from alkaline(8.22)to acidic(2.46 for TA8-1 and 2.44 for TA2),while the un-irradiated solution remained alkaline(8.17 for TA8-1 and 8.20 for TA2)after 160 *** the increase of irradiation dose,the conductivity increases rapidly and then tends to become stable,which indicates that the titanium dioxide corrosion layer formed on the surface of the sample surface effectively prevents further ***,XRD and SEM-EDS analysis results show that the main components of corrosion products are TiO_(2) and *** titanium on the surface of the sample is oxidized,resulting in slight uneven local *** results show that TA8-1 and TA2 are suitable to be used as candidate materials for high-level waste(HLW)disposal containers due to their excellent performance under long-term and high-dose irradiation corrosion.

关键词： γ-irradiation corrosion high-level waste container material

Computational insights into the ionic transport mechanism and interfacial stability of the Li_(2)OHCl solid-state electrolyte

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Journal of Materiomics 2022年第1期8卷 59-67页

作者： Bo liu qianglin Hu Tianyu Gao Peiguang Liao Yufeng Wen Ziheng Lu Jiong Yang Siqi Shi Wenqing Zhang College of Mathematics and Physics Jinggangshan UniversityJi'anJiangxi343009China Materials Genome Institute Shanghai UniversityShanghai200444China School of Materials Science and Engineering Shanghai UniversityShanghai200444China Department of Materials Science&Metallurgy University of CambridgeCB30FSUnited Kingdom Department of Physics and Shenzhen Institute for Quantum Science&Technology Southern University of Science and TechnologyShenzhenGuangdong518055China

Lithium-rich antiperovskites are promising solid-state electrolytes for all-solid-state lithium-ion batteries because of their high structural tolerance and good ***,the experimentally reported proton-free Li_(3)OCl is plagued by its inferior interfacial compatibility and harsh synthesis *** contrast,Li_(2)OHCl is a thermodynamically favored phases and is easier to achieve than Li_(3)*** to the proton inside this material,it exhibits interesting lithium diffusion ***,we present a systematic investigation of the ionic transport,phase stability,and electrochemicalchemical stability of Li_(2)OHCl using first-principles *** results indicate that Li_(2)OHCl is thermodynamically metastable and is an electronic *** wide electrochemical stability window and high chemical stability of Li_(2)OHCl against various electrodes are *** charged defects are the dominant conduction mechanism for Li-transport,with a low energy barrier of~0.50 *** Li-ion conductivity estimated by ab initio molecular dynamics simulations is about 1.3×10^(-4) S cm^(-1) at room *** work identifies the origin of the high interfacial stability and ionic conductivity of Li_(2)OHCl,which can further lead to the design of such as a cathode ***,all computational methods for calculating the properties of Li_(2)OHCl are general and can guide the design of highperformance solid-state electrolytes.

关键词： Solid-state electrolyte Electrochemical stability Chemical stability Ionic transport First-principles calculation

Harvesting the Vibration Energy of CdS for High-Efficient Piezo-Photocatalysis Removal of U(Ⅵ):Roles of Shape Dependent and Piezoelectric Polarization

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Energy & Environmental Materials 2024年第5期7卷 387-399页

作者： Zhimin Dong Donglin Gao Zifan Li Haonan Pei Lin Xu Jian Huang Xiaohong Cao Youqun Wang Ting Wang qianglin Wei Zhibin Zhang Yunhai liu State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China Institute of Geology Chinese Academy of Geological Sciences26 Baiwanzhuang RoadBeijing 100037China

Piezo-photocatalysis could coalesce the advantages of mechanical vibration and solar energy perfectly to achieve high-efficiency catalytic ***,the quintessential piezoelectric material CdS nanowires with different aspect ratios are precisely constructed and applied for piezo-photocatalytic reduction of U(Ⅵ)for the first *** ultrasonic(60 kHz,100 W)induces piezoelectric potential to generate a 0.57 eV A^(-1)electric field,which is added to the direction of CdS(010)as a driving force to efficiently separate photogenerated *** alliance between piezoelectric effect and photocatalytic activity endows CdS NW-3 with the fastest piezo-photocatalytic rate under ultrasonic vibration and 5 W LED irradiation,and the relevant rate constant(0.042 min^(-1))is about 12 and 53.8 times than that of LED and *** importantly,93.74%of U(Ⅵ)could be removed from natural uranium mine ***,this piezo-photocatalysis system that reduces U(Ⅵ)to easily separable(UO_(2))O_(2)·2H_(2)O(s)provides valuable input for disposal applications of radioactive wastewater and broadens the horizons of nuclear energy utilization toward the advancement of carbon neutrality.

关键词： (UO_(2))O_(2)·2H_(2)O CdS nanowires piezo-photocatalytic piezo-potential U(Ⅵ)