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健康奶牛和乳腺炎奶牛乳汁中微生物组成的特征及差异研究

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中国乳品工业 2024年第4期52卷 10-19,60页

作者：谢景昊杨晨杨涵琳郜世凯赵运泽郭爽李和平王月影河南农业大学动物医学院农业农村部动物生化与营养重点实验室河南省动物生长发育调控重点实验室郑州450046

奶牛乳腺炎的发生与多种病原微生物密切相关,乳汁中菌群特征的分析对建立乳房炎防控体系和提高乳制品质量和安全具有重要意义。本研究通过16S rRNA基因的V3-V4区测序,分析河南省某奶牛场17头健康奶牛和10头乳房炎奶牛乳汁中微生物菌群... 详细信息

奶牛乳腺炎的发生与多种病原微生物密切相关,乳汁中菌群特征的分析对建立乳房炎防控体系和提高乳制品质量和安全具有重要意义。本研究通过16S rRNA基因的V3-V4区测序,分析河南省某奶牛场17头健康奶牛和10头乳房炎奶牛乳汁中微生物菌群结构的多样性和丰富度。结果发现,微生物菌群在11个门、24个纲、37个目、82个科和184个属水平上的相对丰度存在显著差异。乳腺炎奶牛乳汁中微生物菌群结构的多样性和丰富度显著低于健康奶牛乳汁,在乳腺炎奶牛乳汁中厚壁菌门、变形菌门、放线菌门的相对丰度较高。乳腺感染后,变形菌门、软壁菌门的丰度显著降低;互养菌门的丰度显著升高。乳腺炎奶牛乳汁中的链球菌科、链球菌属的相对丰度增加,棒状杆菌科、罗尔斯通氏菌属、假单胞菌属的相对丰度下降。优势菌属中有4个嗜冷菌,健康奶牛和乳腺炎奶牛乳汁中的嗜冷菌总丰度分别为19.5%和42.0%。提示乳汁中微生物组成变化可能与奶牛乳腺炎的发生发展有密切联系,该研究为奶牛场乳房炎的防控及原料奶的质量控制提供了理论依据。

关键词：奶牛乳汁菌群特征乳腺炎高通量测序

贵阳市某三甲医院妇产科医护人员加速康复外科知信行现状及讲座的干预效果

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贵州医科大学学报 2024年第1期49卷 115-120页

作者：赵文文杨涵琳任小玉朱焱訾聃贵州医科大学公共卫生与健康学院贵州贵阳550025 贵州省人民医院妇科贵州贵阳550000

目的了解贵阳市某三甲医院妇产科医护人员加速康复外科(ERAS)知信行现状,探讨讲座在改善妇产科医护人员加速康复知信行中的效果。方法以贵阳市某三甲医院妇产科146名医护人员为研究对象,自行设计调查问卷,计算问卷各维度得分评价调查... 详细信息

目的了解贵阳市某三甲医院妇产科医护人员加速康复外科(ERAS)知信行现状,探讨讲座在改善妇产科医护人员加速康复知信行中的效果。方法以贵阳市某三甲医院妇产科146名医护人员为研究对象,自行设计调查问卷,计算问卷各维度得分评价调查对象ERAS知信行状态,采用单因素方差分析妇产科医护人员ERAS知信行得分;对妇产科医护人员进行1次讲座形式的知识宣教,比较讲座前后妇产科医护人员ERAS知信行得分变化情况。结果讲座前妇产科医护人员加速康复外科知识得分较低,得分率仅为65.74%;单因素方差分析和独立样本t检验显示,研究对象知信行得分在学历、年龄、科室、职称、工作年限方面比较,差异有统计意义(P<0.05);讲座后妇产科医护人员加速康复外科知信行整体得分及知识、态度、行为各项单独得分均较讲座前提高(P<0.05)。结论妇产科医护人员加速康复外科知识得分较低,对妇产科医护人员进行讲座形式的培训后,可有效提高医护人员的知信行状况。

关键词：加速康复外科妇产科知识态度行为讲座

REACTIONS OF PYRITE IN CATALYTICAL OXIDATION ACID LEACHING SYSTEM

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中国有色金属学会会刊：英文版 1995年第2期5卷 43-48页

作者： Xia, Guangxiang Tu, Taozhi yang, hanlin Shi, Wei(Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080) Chinese Acad of Sciences Beijing China

ＲＥＡＣＴＩＯＮＳＯＦＰＹＲＩＴＥＩＮＣＡＴＡＬＹＴＩＣＡＬＯＸＩＤＡＴＩＯＮＡＣＩＤＬＥＡＣＨＩＮＧＳＹＳＴＥＭ￥Ｘｉａ，Ｇｕａｎｇｘｉａｎｇ；Ｔｕ，Ｔａｏｚｈｉ；Ｙａｎｇ，Ｈａｎｌｉｎ；Ｓｈｉ，Ｗｅｉ（Ｉｎｓｔｉ... 详细信息

ＲＥＡＣＴＩＯＮＳＯＦＰＹＲＩＴＥＩＮＣＡＴＡＬＹＴＩＣＡＬＯＸＩＤＡＴＩＯＮＡＣＩＤＬＥＡＣＨＩＮＧＳＹＳＴＥＭ￥Ｘｉａ，Ｇｕａｎｇｘｉａｎｇ；Ｔｕ，Ｔａｏｚｈｉ；Ｙａｎｇ，Ｈａｎｌｉｎ；Ｓｈｉ，Ｗｅｉ（ＩｎｓｔｉｔｕｔｅｏｆＣｈｅｍｉｃａｌＭｅｔ...

关键词： catalytic oxidation acidic leaching pyrite oxidation pretreatment

基于结构方程模型的贵州省妇科医护人员加速康复外科知识-态度-行为研究

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中国医药导报 2024年第16期21卷 29-32页

作者：赵文文任小玉杨涵琳朱焱訾聃贵州医科大学公共卫生与健康学院贵州贵阳550025 贵州省人民医院妇科贵州贵阳550000

目的运用结构方程模型分析贵州省妇科医护人员加速康复外科(ERAS)知识-态度-行为现状,为相关培训提供参考依据。方法使用自制问卷于2023年8月调查贵州省妇科医护人员ERAS知识-态度-行为现状,建立结构方程模型探讨贵州省妇科医护人员ERA... 详细信息

目的运用结构方程模型分析贵州省妇科医护人员加速康复外科(ERAS)知识-态度-行为现状,为相关培训提供参考依据。方法使用自制问卷于2023年8月调查贵州省妇科医护人员ERAS知识-态度-行为现状,建立结构方程模型探讨贵州省妇科医护人员ERAS知识-态度-行为的作用路径及可能影响因素。结果贵州省妇科医护人员ERAS知识得分率最低(68.91%),态度得分率最高(86.18%);仅45.78%的妇科医护人员ERAS知信行得分为优秀。结构方程模型拟合良好,路径分析显示知识对态度的影响路径系数为0.477,态度对行为的影响路径系数为0.436,态度在知识对行为的作用过程中呈现部分中介作用,中介效应占总效应值的49.81%。结论贵州省妇科医护人员ERAS知信行得分率较低,结构方程模型提示ERAS态度在知识对行为的作用过程中起中介作用,且ERAS行为不仅受ERAS知识和态度直接影响,还可能受其他因素影响。

关键词：加速康复外科结构方程模型妇科知识态度行为

Rainfall-triggered waste dump instability analysis based on surface 3D deformation in physical model test

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Journal of Mountain Science 2024年第5期21卷 1549-1563页

作者： LI hanlin JIN Xiaoguang HE Jie XUE Yunchuan yang Zhongping School of Civil Engineering Chongqing UniversityChongqing 400038China

Landslide is the second largest natural disaster after earthquake. It is of significance to study the evolution laws and failure mechanism of landslides based on its surface 3D deformation information. Based on the rainfall-triggered waste dump instability model test, we studied the failure mechanisms of the waste dump by integrating surface deformation and internal slope stress and proposed novel parameters for identifying landslide stability. We developed a noncontact measurement device, which can obtain millimeter-level 3D deformation data for surface scene in physical model test;Then we developed the similar materials and established a test model for a waste dump. Based on the failure characteristics of slope surface, internal stress of slope body and displacement contours during the whole process, we divided the slope instability process in model test into four stages: rainfall infiltration and surface erosion, shallow sliding, deep sliding, and overall instability. Based on the obtained surface deformation data, we calculated the volume change during slope instability process and compared it with the point displacement on slope surface. The results showed that the volume change can not only reflect the slow-ultra acceleration process of slope failure, but also fully reflect the above four stages and reduce the fluctuations caused by random factors. Finally, this paper proposed two stability identification parameters: the volume change rate above the slip surface and the relative velocity of volume change rate. According to the calculation of these two parameters in model test, they can be used for study the deformation and failure mechanism of slope stability.

关键词： Waste dump stability Physical model test Surface 3D deformation Stability identification

某大型综合医院不同院区建筑用能特征及节能策略分析

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暖通空调 2024年第10期54卷 159-164页

作者：杨涵淋於仲义陈焰华金碧辉张玉华施俊刚华中科技大学同济医学院附属同济医院武汉中信建筑设计研究总院有限公司武汉武汉市建筑节能办公室武汉

以武汉市某三级甲等综合医院为研究对象,对该医院3个院区多年的业务量和能耗情况进行了统计分析,追溯医院电力、天然气、水和蒸汽的使用去向,并分析其逐月使用变化。使用相关能耗指标评价该医院的用能水平,并探究影响医院能耗的相关因... 详细信息

以武汉市某三级甲等综合医院为研究对象,对该医院3个院区多年的业务量和能耗情况进行了统计分析,追溯医院电力、天然气、水和蒸汽的使用去向,并分析其逐月使用变化。使用相关能耗指标评价该医院的用能水平,并探究影响医院能耗的相关因素。基于医院的用能特征,对后续节能策略提出建议,以期为大型综合医院建筑节能和绿色低碳转型提供借鉴和参考。

关键词：大型综合医院能耗指标用能特征影响因素节能策略

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Novel high-safety aeroengine performance predictive control method based on adaptive tracking weight

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Chinese Journal of Aeronautics 2024年第7期37卷 352-374页

作者： Qian CHEN hanlin SHENG Jie ZHANG Jiacheng LI College of Energy and Power Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China College of Automation Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Increasing attention has been attracted to the dynamic performance and safety of advanced performance predictive control systems of the next-generation *** latest research demonstrates that Subspace-based Improved Model Predictive Control(SIMPC)can overcome the difficulty in solving the predictive model in MPC/NMPC ***,applying constant design parameters cannot maintain consistent control effects in all ***,the designed system relies too much on sensor-measured data,and thus it is difficult to thoroughly validate the safety of the system because of its high *** means that any potential hardware/software faults will endanger the ***,this paper first presents a novel nonlinear mapping relationship to adaptively tune the tracking weight online with the change of Power Lever Angle(PLA)and real-time relative tracking ***,without introducing additional design parameters,an Adaptive Tracking Weight-based SIMPC(ATW-SIMPC)controller is designed to improve the control performance in all operating states ***,a Primary/Backup Hybrid Control(PBHC)strategy with the ATW-SIMPC controller as the primary system and the traditional speed(Nf)controller as the backup system is proposed to ensure *** designed affiliated switching controller and the real-time monitor therein can be used to realize reasonable and smooth switching between primary/backup systems,so as to avoid bump *** PBHC system switches to the Nf controller when the ATW-SIMPC controller is wrong because of potential hardware/software faults;otherwise,the ATW-SIMPC controller keeps acting on the *** main results prove that the ATW-SIMPC controller with the optimal nonlinear mapping relationship,compared with the existing SIMPC controller,uplifts the dynamic control performance by 32%and reduces overshoots to an allowable limit,resulting in a better control effect in full *** comparison results consistently i

关键词： Aeroengine Model predictive control Hybrid system Adaptive weight Safety

Preparation of K-doped g-C_(3)N_(4) composite loaded on magnetic attapulgite and its degradation performance for malachite green

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Chinese Journal of Chemical Engineering 2024年第7期71卷 110-121页

作者： Aishun Ma hanlin Qian Hongxia Liu Sili Ren Jiangxi Key Laboratory of Mining&Metallurgy Environmental Pollution Control Jiangxi University of Science and TechnologyGanzhou 341000China Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources Jiangxi University of Science and TechnologyGanzhou 341000China

Visible-light-driven photocatalysis is a promising technology for the treatment of dye *** this work,a novel photocatalyst of K-doped g-C_(3)N_(4) loaded on magnetic attapulgite(ATP)(Kω-g-C_(3)N_(4)@ATP-Fe_(3)O_(4))with excellent visible light photocatalytic properties and stability were successfully prepared and *** removal efficiency of Kω-g-C_(3)N_(4)@ATP-Fe_(3)O_(4) for malachite green(MG)was studied,and the degradation mechanism was analyzed and *** was found that the K_(5)-g-C_(3)N_(4)@ATP-Fe_(3)O_(4) photocatalyst possessed excellent degradation efficiency of over 98.0%for the MG dye wastewater under optimal ***,the K_(5)-g-C_(3)N_(4)@ATP-Fe_(3)O_(4) materials possessed good recyclability with a removal rate over 82%after 4 *** visible light condition,the K_(5)-g-C_(3)N_(4)@ATP-Fe_(3)O_(4) photocatalyst produce radicals of·OH and O_(2)^(-)to degrade the MG dyes,which was supported by electron paramagnetic resonance(EPR)and radical trapping *** addition,the LC-MS analysis interpreted the degradation pathways and intermediates of MG in the *** findings in this work indicate that the prepared photocatalytic material has excellent degradation efficiency for MG and can be applied in dye wastewater treatment.

关键词： Photocatalyst Malachite green K-doped g-C_(3)N_(4) Degradation

An Incremental-Selective Cooperative Relaying Scheme with Best Relay Selection in WSN80002

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Journal of Computer and Communications 2015年第3期3卷 106-113页

作者： Shaoqing Wang hanlin yang Ning Zhou An Wang The Electronic System Engineering Company of China Beijing China

In wireless sensor networks, the traditional multi-relay incremental cooperative relaying (MIR) scheme could improve the system throughput over the fading channel enormously by exploiting multiple relay nodes to retransmit the copy of the source packet to the destination in turn, but increase the energy consumption and transmission delay. In order to mitigating the energy consumption and transmission delay, this paper proposes a new cooperative relaying scheme termed as incremental-selective relaying with best-relay selection (ISR), which selects the best relay node from the candidate relays to retransmit the packet to the destination only when the direct transmission between the source and the destination is not successful. Expressions of normalized throughput, normalized delay and energy efficiency for the ISR and MIR systems are derived respectively and their performances are compared through simulations. The results show that normalized throughput, normalized delay and energy efficiency for the ISR system all outperform the corresponding performances of the MIR system. Especially, there are different the optimal number of relays which can maximize the energy efficiency of system.

关键词： Cooperative Relaying Wireless Sensor Networks Normalized Throughput Delay Energy Efficiency