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新疆生产建设兵团第十师草原毒害草多样性研究

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石河子大学学报（自然科学版） 2024年第1期42卷 47-54页

作者：谭海燕王鑫渝王钢郭庆程文亮杨德松石河子大学农学院/新疆绿洲农业病虫害治理与植保资源利用重点实验室新疆石河子832000 新疆生产建设兵团第十师林业和草原服务中心新疆北屯836000

本研究以新疆生产建设兵团第十师草原毒害草为研究对象,为查明其草原毒害草种类、分布及危害程度等,系统的评估毒害草发生及危害现状,为毒害草的防治与草原的可持续发展提供科学的理论依据。本研究采用踏查、样地调查等方法进行调查,并... 详细信息

本研究以新疆生产建设兵团第十师草原毒害草为研究对象,为查明其草原毒害草种类、分布及危害程度等,系统的评估毒害草发生及危害现状,为毒害草的防治与草原的可持续发展提供科学的理论依据。本研究采用踏查、样地调查等方法进行调查,并进行重要值及多样性分析。结果表明:第十师毒害草共有63种,分属23科53属,其中菊科毒害草种类占比最多为19%;毒害草种群Shannon-Wiener多样性指数为3.56,Simpson多样性指数为0.96,Pielou均匀度指数为0.86;毒害草空间分布格局整体趋向于均匀分布;优势毒害草为苦豆子、工布乌头、兔儿条、狭叶锦鸡儿、骆驼刺、麻叶荨麻、白刺、梭梭和蓝刺头,主要分布在181团、182团、185团。第十师草原毒害草种类较多,分布较广、危害严重,因此对其进行调查,摸清其种类、分布等对毒害草的防治具有重要意义。

关键词：草原毒害草种类与分布新疆生产建设兵团第十师

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凯格尔训练护理模式联合他达拉非治疗勃起功能障碍的临床研究

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中国医药导报 2024年第13期21卷 80-82页

作者：谭海艳李金涛崔应东湖北省恩施土家族苗族自治州民族医院泌尿外科湖北恩施445000

目的探讨凯格尔训练护理模式联合他达拉非治疗阴茎勃起功能障碍的临床效果。方法选择2020年6月至2022年6月湖北省恩施土家族苗族自治州民族医院泌尿外科就诊的82例勃起功能障碍患者,根据随机数字表法将其分为药物组、联合组,每组41例... 详细信息

目的探讨凯格尔训练护理模式联合他达拉非治疗阴茎勃起功能障碍的临床效果。方法选择2020年6月至2022年6月湖北省恩施土家族苗族自治州民族医院泌尿外科就诊的82例勃起功能障碍患者,根据随机数字表法将其分为药物组、联合组,每组41例。药物组口服他达拉非,联合组在药物组的基础上进行凯格尔训练,治疗2个月。比较两组治疗前后勃起硬度评分(EHS)、国际勃起功能指数问卷(IIEF)评分;比较两组满意度。结果治疗后,两组EHS高于治疗前,且联合组高于药物组(P<0.05)。治疗后,两组IIEF评分高于治疗前,且联合组高于药物组(P<0.05)。联合组满意度优于药物组(P<0.05)。结论凯格尔训练联合他达拉非治疗阴茎勃起功能障碍临床效果好,患者满意度高,值得在临床推广使用。

关键词：凯格尔训练他达拉非勃起功能障碍临床研究

CdS decorated resorcinol-formaldehyde spheres as an inorganic/organic S-scheme photocatalyst for enhanced H_(2)O_(2)production

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Journal of Materials Science & Technology 2023年第31期162卷 90-98页

作者： Bicheng Zhu Jingjing Liu Jian Sun Fei Xie haiyan tan Bei Cheng Jianjun Zhang Laboratory of Solar Fuel Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430078China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Chemistry and Environmental Engineering Hubei University for NationalitiesEnshi 445000China

Photocatalytic H_(2)O_(2)production provides a clean and sustainable strategy for artificial ***,an inorganic/organic composite photocatalyst was fabricated by in-situ growth of CdS nanoparticles on the surface of resorcinol-formaldehyde(RF)resin *** spheres played multiple roles:(i)acting as a substrate for the growth of CdS and constructing a core-shell structure with seamless con-tact;(ⅱ)improving visible light absorption of CdS;(ⅲ)forming an S-scheme heterojunction with CdS and promoting the charge separation and ***,under visible light illumination,CdS/RF composite presented remarkably enhanced H_(2)O_(2)production *** H_(2)O_(2)yield in 60 min was 801μmol L^(-1),which was 5.2 and 1.5 times higher than that of RF spheres and CdS hollow spheres,*** charge migration between CdS and RF followed the S-scheme photocatalytic mechanism,which was verified by work function measurement,ex-situ and in-situ irradiated X-ray photoelectron *** work brings a novel insight into designing RF-based inorganic/organic S-scheme heterojunction pho-tocatalysts for efficient H_(2)O_(2)production.

关键词： Photocatalysis Step-scheme heterojunction Resorcinol-formaldehyde Hydrogen peroxide in-situ irradiated XPS

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傅里叶变换红外光谱法测定轧制油羟值含量

铝加工 2024年第2期 57-59,72页

作者：王秋霞高双谭海燕谭家英周义平西南铝业(集团)有限责任公司重庆401326

铝合金轧制生产中需要工艺润滑,轧制油的羟值是衡量润滑性能的重要指标。及时检测轧制油羟值的含量变化情况,可为轧制生产控制提供依据。羟值的测定一般采用化学方法,但化学方法检测时间长、操作繁琐。利用傅里叶变换红外光谱(FT-IR)法... 详细信息

铝合金轧制生产中需要工艺润滑,轧制油的羟值是衡量润滑性能的重要指标。及时检测轧制油羟值的含量变化情况,可为轧制生产控制提供依据。羟值的测定一般采用化学方法,但化学方法检测时间长、操作繁琐。利用傅里叶变换红外光谱(FT-IR)法能够快速、准确地测定轧制油羟值含量。该方法的精密度高,相对标准偏差为0.18%;准确度高,相对误差均在±1%以内。与传统化学方法相比,该技术具有分析时间短、操作简单、特征性好和不破坏试样等特点,可满足及时指导工艺的需求,提高工作效率。

关键词：傅里叶变换红外光谱轧制油羟值含量测定

X荧光光谱仪测定7×××系铝合金中元素的方法研究

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铝加工 2024年第3期 65-68页

作者：高双王秋霞唐宗元谭家英谭海燕西南铝业(集团)有限责任公司重庆401326

通过电流、电压、计数时间等不同试验参数的正交试验,确定了X射线荧光光谱法的最佳试验条件。选择铝合金标准样品,建立标准工作曲线,实现了7×××系铝合金中元素Si、Fe、Cu、Mn、Mg、Cr、Ni、Zn、Ti、Zr的准确测定。对该测定方法的精... 详细信息

通过电流、电压、计数时间等不同试验参数的正交试验,确定了X射线荧光光谱法的最佳试验条件。选择铝合金标准样品,建立标准工作曲线,实现了7×××系铝合金中元素Si、Fe、Cu、Mn、Mg、Cr、Ni、Zn、Ti、Zr的准确测定。对该测定方法的精密度进行考察,铝合金样品中各元素测定结果的相对标准偏差均低于0.7%,对标准样品进行分析,测定值与化学法吻合较好,能够满足铝合金各元素的准确测定的需求。

关键词：正交试验 X射线荧光光谱法铝合金元素

Thermoplastic Starch Prepared with Different Plasticizers: Relation between Degree of Plasticization and Properties

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Journal of Wuhan University of Technology(Materials Science) 2015年第2期30卷 423-428页

作者：左迎峰 GU Jiyou tan haiyan 张彦华 Key Laboratory of Bio-based Material Science and Technology (Ministry of Education) Northeast Forestry University

Ethylene glycol, glycerol, sorbitol, formamide, and urea were used as plasticizers for the preparation of thermoplastic starch（TPS） from corn starch. The properties of TPS were tested by analysis method. The results showed that TPSs were more highly plasticized with amines than alcohols. For the same type of plasticizer, the degree of plasticization decreased as the molecular weight of plasticizer increased. The relationship between plasticization degree and TPS properties was characterized and described by mechanical properties and water absorption. The experimental results showed that when the degree of plasticization increased, the tensile strength decreased and the elongation at breakage and water absorption increased.

关键词： corn starch plasticizer thermoplastics degree of plasticization properties

Study on the Magnetothermopower in GMR with Laser Pulse Excitation

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Study on the Magnetothermopower in GMR with Laser Pulse Exci...

Effect of relative humidity on the desulfurization performance of calcium-based desulfurizer

中国稀土学会第四届青年学术会议

作者： haiyan tan Hangfu Yang College of Materials and Chemistry China Jiliang University

Giant magnetoresistance(GMR) head technology is one of the important advancements in the hard disk drive(HDD) storage industry. The multi-layer structure of GMR magnetic head is composed of multi-layer thin films alternately stacked with ferromagnetic metal layer(FM) and non-magnetic metal layer(NM). By changing its magnetization structure, the resistivity R changes significantly, which is called GMR effect. The spin thermoelectric analog of GMR is the Giant Magneto-Seebeck effect(GMS) or Giant Magnetothermopower(GMP).The Spin-dependent Seebeck coefficient is defined as ΔS= ΔV/ΔTGMR,where ΔV is the potential difference in AP and P state and ΔTGMR is the temperature gradient through the GMR In this study, we have fabricated the GMR(Si/Ta/NiFe/IrMn//CoFe/Ru/CoFe/CuO/CoFe/NiFe/Ta) samples with typical MR～4%, as shown in Fig.1. To study the GMS, the femtosecond laser pulses is used to generate a large temperature gradient through the samples. To extract the temperature distribution across the structure, the heat diffusion after laser pulse are studied with the COMSOL simulation. The laser pulse is applied to the surface of the GMR sample. In the simulation, continuous laser pulse makes the surface of the sample in a stable state of high temperature. The temperature between the GMR layers is measured, and the temperature gradient is obtained, as shown in Figure 2, ΔT=*** simulation results provide nice research basis for study the GMP in GMR.

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Journal of Environmental Sciences 2024年第4期138卷 179-188页

作者： Juan Lǖ Yu Fu haiyan Yu HuanWang Zhe Wang haiyan Chen School of Environment and Resource Southwest University of Science and TechnologyMianyang 621010China Guangyuan Emergency Management bureau Guangyuan 628000China

Low desulfurization efficiency impedes the wide application of dry desulfurization technology,which is a low-cost and simple process,and one significant solution is the development and manufacture of high-performance *** this study,firstly,a steam jet mill was used to digest quicklime;then,we utilized numerical simulation to study the flow field distribution and analyze the driving factors of quicklime digestion;and lastly,the desulfurization performance of the desulfurizer was evaluated under different relative *** results show that the desulfurizer prepared via the steam jet mill had better apparent activity than traditional ***,the entire jet flow field of the steam jet mill is in a supersonic and highly turbulent flow state,with high crushing intensity and good particle acceleration *** contact with the nascent surface maximizes the formation of slaked *** experiments demonstrated that the operating time with 100%desulfurization efficiency and the“break-through”time for the desulfurizer prepared via the steam jet mill is longer than that of traditional desulfurizers,and has significant advantages,especially at low flue gas relative *** with traditional desulfurizers,the desulfurizer prepared via steam jet mill expands the range of acceptable flue gas temperature,and the failure temperature is 1.625 times that of traditional *** work breaks through the technical bottleneck of low dry desulfurization efficiency,which is an important step in pushing forward the application of dry desulfurization.

关键词： Dry desulfurization Relative humidity Desulfurization efficiency High-efficiency desulfurizer Quicklime digestion

孕妇阴道B族链球菌检测联合胎儿脐带血中性粒细胞CD64指数预测胎膜早破新生儿感染的价值

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检验医学 2024年第1期39卷 53-59页

作者：谭海燕蒋玉蓉湖南省妇幼保健院产一科湖南长沙410000

目的探讨孕妇阴道B族链球菌(GBS)检测联合胎儿脐带血中性粒细胞CD64指数对胎膜早破(PROM)新生儿感染的预测价值,并分析其影响因素。方法选取2022年3—12月湖南省妇幼保健院170例足月分娩PROM新生儿作为观察组,根据新生儿感染情况分为... 详细信息

目的探讨孕妇阴道B族链球菌(GBS)检测联合胎儿脐带血中性粒细胞CD64指数对胎膜早破(PROM)新生儿感染的预测价值,并分析其影响因素。方法选取2022年3—12月湖南省妇幼保健院170例足月分娩PROM新生儿作为观察组,根据新生儿感染情况分为感染组(48例)和未感染组(122例)。比较新生儿一般资料,分析PROM新生儿感染与临床特征的关系。采用多因素Logistic回归分析评价PROM新生儿感染的影响因素;构建列线图模型,并进行验证。采用受试者工作特征(ROC)曲线评价GBS阳性、CD64指数判断新生儿感染的效能。结果感染组和未感染组PROM到分娩时间、绒毛膜羊膜炎、GBS阳性、阴道指检次数、产前使用抗菌药物、5 min Apgar评分<7分、羊水污染、CD64指数差异均有统计学意义(P<0.05)。PROM到分娩时间、绒毛膜羊膜炎、GBS阳性、阴道指检次数、CD64指数是PROM新生儿感染的危险因素(P<0.05),这5项指标在列线图预测模型中的总分为294分,对应的感染风险为73.15%。交互作用分析结果显示,CD64指数、GBS阳性对感染组和未感染组具有正相加交互作用(P<0.001)。ROC曲线分析结果显示,CD64指数和GBS阳性单项检测和联合检测判断PROM新生儿感染的曲线下面积分别为0.763、0.807和0.847。结论孕妇阴道GBS检测联合胎儿脐带血中性粒细胞CD64指数对PROM新生儿感染具有较高的预测价值。PROM到分娩时间、绒毛膜羊膜炎、阴道检查次数是导致PROM新生儿感染的危险因素,临床应重点关注,以降低感染风险。

关键词： B族链球菌中性粒细胞CD64 胎膜早破新生儿感染