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Potential use of garlic products in ruminant feeding:A review

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Animal Nutrition 2023年第3期14卷 343-355页

作者： He Ding Changjin Ao xiaoqing zhang Institute of Grassland Research Chinese Academy of Agricultural SciencesHohhot 010010China Key Laboratory of Animal Feed and Nutrition of Inner Mongolia Autonomous Region College of Animal ScienceInner Mongolia Agricultural UniversityHohhot 010018China

The addition of antibiotics as growth promoters to ruminant feed can result in bacterial resistance and antibiotic residues in ruminant ***,there is serious public concern regarding the presence of antibiotic residue in ruminant products and the consequent threat to human *** a result,the addition of plants and their products to ruminant feeds,as an alternative to antibiotics,has received much attention *** and its products are rich in organosulphur compounds,which have a variety of biological activities and have been widely used as natural additives in animal *** review presents recent knowledge on the addition of garlic products(powder,skin,oil,leaf and extracts)to the diets of *** this paper,garlic products are evaluated with respect to their chemical composition,bioactive compounds,and their impacts on the rumen ecosystem,antioxidant status,immune response,parasitic infection,growth performance and product quality of *** review provides valuable guidance and a theoretical basis for the development of garlic products as green,highly efficient and safe additives,with the aims of promoting ruminant growth and health,reducing methane emissions and improving ruminant product *** extracts have the potential to control parasite infections by decreasing the faecal egg *** powder,oil and allicin are able to reduce the methane emissions of *** compounds such as allicin,which is present in garlic products,have the potential to inhibit membrane lipid synthesis of the archaeal community,thus influencing the population of methanogenic archaea and resulting in a reduction in methane *** garlic products are also able to increase the average daily gain(garlic skin,water extract,and leaf)and the feed conversion ratio(garlic skin and leaf)of *** stalk silage fed to sheep has the potential to improve the nutritional value of mutton by increasing the

关键词： Garlic product Ruminant Methane emission Growth performance Product quality

Numerical Simulation on Ceramic/Metal Armours Impacted by Deformable Projectile

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上海交通大学学报 2004年第Z2期38卷 142-146页

作者： zhang xiaoqing Yao Xiaohu Yang Guitong College of Traffic and Communications South China University of Technology China College of Traffic and Communications South China University of Technology China Institute of Applied Mechanics Taiyuan University of Technology China Institute of Applied Mechanics Taiyuan University of Technology China

Numerical simulation for the dynamic response of ceramic/metal armours impacted by deformable projectile is carried out with *** simulated penetration processes are shown. The mushrooming of the projectile is displayed. A distinct conoid shaped zone of fragmented ceramic is observed. A significant bending of the backing plate is revealed. Simulation results match fairly well with the experimental values and the theoretical analysis results. The accuracy of the numerical simulation is validated.

关键词： deformable projectile ceramic/metal armours numerical simulation

Studies on Mechanochemical Method to Synthesize LDH Nanoparticles

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Chinese Journal of Chemistry 2012年第2期30卷 277-282页

作者： Jia,Chunxiao zhang,xiaoqing Li,Shuping Department of Chemistry Dezhou UniversityDezhouShandong253023China Jiangsu Key Laboratory of Biofunctional Material College of Chemistry and Material ScienceNanjing Normal UniversityNanjingJiangsu 210097China

Magnesium-ferrum layered double hydroxide （Mg-Fe-LDH） and zinic-aluminum layered double hydroxide （Zn-A1-LDH） compounds were prepared through a mechanochemical method. The influence of molar ratio of M2＋ to M3＋（R value） on the property ofLDH nanoparticles has been studied and the results showed that R=3 ： 1 is the optimum value for the both samples. Besides pure water, the mixture of water and ethanol with the volume ratio of 3 ; 1 is also used to wash the precipitates and used as suspending agent during the peptization process and our results showed that the addition of ethanol can improve the monodispersity of LDH nanoparticles greatly.

关键词： mechanochemical method solvent-free reaction layered compounds intercalations

PDNet:A Convolutional Neural Network Has Potential to be Deployed on Small Intelligent Devices for Arrhythmia Diagnosis

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Computer Modeling in Engineering & Sciences 2020年第10期125卷 365-382页

作者： Fei Yang xiaoqing zhang Yong Zhu Department of Computer Science and Engineering Southern University of Science and TechnologyShenzhenChina Cooperative Innovtion Center of Internet Healthcare Zhengzhou UniversityZhengzhou450052China College of Computer Science and Technology Huaqiao UniversityXiamen361021China

Heart arrhythmia is a group of irregular heartbeat conditions and is usually detected by electrocardiograms(ECG)*** the past years,deep learning methods have been developed to classify different types of heart arrhythmias through ECG based on computer-aided diagnosis systems(CADs),but these deep learning methods usually cannot trade-off between classification performance and parameters of deep learning *** tackle this problem,this work proposes a convolutional neural network(CNN)model named PDNet to recognize different types of heart arrhythmias *** the PDNet,a convolutional block named PDblock is devised,which is comprised of a pointwise convolutional layer and a depthwise convolutional ***,an improved loss function is utilized to improve the results of heart arrhythmias *** verify the proposed CNN model,extensive experiments are conducted on publicMIT-BIH ECG *** experimental results demonstrate that the proposed PDNet achieves an accuracy of 98.2%accuracy and outperforms state-of-the-art methods about 2%.

关键词： Electrocardiograms heart arrhythmia convolutional neural network PDblock loss

聚己内酯-透明质酸静电纺丝膜联合间充质干细胞修复子宫内膜损伤

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中国组织工程研究 2025年第16期29卷 3369-3379页

作者：安江茹张锦艺王秋花杨杨杨王文双张晓晴滨州医学院基础医学院人体解剖与组织胚胎学教研室生物材料与组织再生国际合作联合实验室山东省烟台市264003 烟台毓璜顶医院妇科山东省烟台市264000

背景:人子宫内膜间充质干细胞能够直接修复受损的子宫内膜,促进血管生成、恢复子宫形态结构,然而将干细胞直接注入受损子宫内膜后的细胞存活率低、滞留时间短,修复效果有限。目的:观察聚己内酯-透明质酸静电纺丝膜复合人子宫内膜间充质... 详细信息

背景:人子宫内膜间充质干细胞能够直接修复受损的子宫内膜,促进血管生成、恢复子宫形态结构,然而将干细胞直接注入受损子宫内膜后的细胞存活率低、滞留时间短,修复效果有限。目的:观察聚己内酯-透明质酸静电纺丝膜复合人子宫内膜间充质干细胞修复大鼠子宫内膜损伤的效果。方法:①细胞实验:采用胶原酶消化法提取人子宫内膜间充质干细胞,静电纺丝技术制备聚己内酯-透明质酸静电纺丝膜。将人子宫内膜间充质干细胞分别接种于聚苯乙烯培养板与聚己内酯-透明质酸静电纺丝膜上,通过DNA定量分析、WST-1细胞活性实验、鬼笔环肽染色、扫描电镜观察细胞的增殖与黏附能力,qRT-PCR检测静电纺丝膜上细胞CD90、Meflin的mRNA表达。②动物实验:取27只处于动情期的雌性SD大鼠,通过机械搔刮法建立宫腔粘连模型后随机分为3组,每组9只:空白对照组不进行任何治疗,对照组将聚己内酯-透明质酸静电纺丝膜植入宫腔损伤部位,实验组将聚己内酯-透明质酸静电纺丝膜/人子宫内膜间充质干细胞补片植入宫腔损伤部位。术后第3,7,14天取材,采用苏木精-伊红染色观察子宫形态结构及腺体数量,qRT-PCR和免疫荧光染色观察子宫组织CD31、血管内皮生长因子的表达。结果与结论:①细胞实验:与聚苯乙烯培养板相比,聚己内酯-透明质酸静电纺丝膜可促进人子宫内膜间充质干细胞的增殖与黏附,并且聚己内酯-透明质酸静电纺丝膜支持人子宫内膜间充质干细胞基因CD90和Meflin的表达;②动物实验:苏木精-伊红染色显示,聚己内酯-透明质酸静电纺丝膜/人子宫内膜间充质干细胞补片可促进子宫内膜损伤后形态结构的恢复,术后第14天的内膜厚度与腺体数量均多于空白对照组、对照组(P<0.05);qRT-PCR和免疫荧光染色检测显示,实验组术后第7,14天的CD31、血管内皮生长因子mRNA与蛋白表达均高于空白对照组、对照组(P<0.05);③结果表明:聚己内酯-透明质酸静电纺丝膜可以提高干细胞的存活率、延长干细胞与受损组织的接触时间,二者复合移植可更好地修复受损子宫内膜组织。

关键词：子宫内膜宫腔粘连人子宫内膜间充质干细胞静电纺丝膜聚己内酯透明质酸

Study on Dynamic Mechanism of Urban Expansion: A Case Study of Shandong Province

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Chinese Journal of Population,Resources and Environment 2007年第3期5卷 37-42页

作者： zhang xiaoqing Ren Jianlan School of Population Resources and Environment Shandong Normal University Jinan Shandong 250014 China

This paper aims at studying the dynamic mechanism of urban expansion and its role. Based on the economic model of urban spatial structure and applying panel data in Shandong Province, the paper concludes. Economic growth and transition of economic structure have played the most powerful role in urban expansion. An increase in population helps the core to extend. Increasing agricultural productivity can provide a countervailing force. An increase in transportation costs will limit urban expan- sion. An increase in the marginal productivity of land in housing production will increase urban expansion. Fiscal and taxation policies also have encouraged the extensive shift of cultivated land into build-up area. This paper also suggests that if high rate increasing GDP is needed, the urban core will continue to expand. The government should take measures to improve the rapid growth of the city.

关键词： urban extent dynamic mechanism economic modelof urban spatial structure panel data

Spray-coated electret materials with enhanced stability in a harsh environment for an MEMS energy harvesting device

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Microsystems & Nanoengineering 2021年第1期7卷 151-159页

作者： Anxin Luo Yixin Xu Yulong zhang Mi zhang xiaoqing zhang Yan Lu Fei Wang School of Microelectronics Southern University of Science and Technology518055 ShenzhenChina State Key Laboratory of AMS-VLSI Institute of MicroelectronicsUniversity of Macao(UM)999078 MacaoChina Department of Electrical and Computer Engineering FSTUM999078 MacaoChina Engineering Research Center of Integrated Circuits for Next-Generation Communications Ministry of EducationSouthern University of Science and Technology518055 ShenzhenChina Department of Mechanical Engineering Boston UniversityBostonMAUSA College of New Materials and New Energies Shenzhen Technology University518118 ShenzhenChina Shanghai Key Laboratory of Special Artificial School of Physics Science and Engineering Tongji University200092 ShanghaiChina

The charge stability of electret materials can directly affect the performance of electret-based devices such as electrostatic energy *** this paper,a spray-coating method is developed to deposit an electret layer with enhanced charge *** long-term stability of a spray-coated electret is investigated for 500 days and shows more stable performance than a spin-coated layer.A second-order linear model that includes both the surface charge and space charge is proposed to analyze the charge decay process of electrets in harsh environments at a high temperature(120°C)and high humidity(99%RH);this model provides better accuracy than the traditional deep-trap *** further verify the stability of the spray-coated electret,an electrostatic energy harvester is designed and fabricated with MEMS(micro-electromechanical systems)*** electret material can work as both the bonding interface and electret layer during fabrication.A maximum output power of 11.72μW is harvested from a vibrating source at an acceleration of 28.5 m/*** the energy harvester with the spray-coated electret is exposed to a harsh environment(100°C and 98%RH),an adequate amount of power can still be harvested even after 34 h and 48 h,respectively.

关键词： stability. stability electrostatic

Social-Aware Based Secure Relay Selection in Relay-Assisted D2D Communications

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Computers, Materials & Continua 2019年第2期58卷 505-516页

作者： Shanshan Yu Ju Liu xiaoqing zhang Shangbin Wu Shandong University Qingdao266237China. Samsung R&D Institute UK Staines-upon-ThamesTW184QEUK

Relay-assisted transmission could effectively enhance the performance of Device-to-Device(D2D)communications when D2D user equipments(UEs)are too far away from each other or the quality of D2D channel is not good enough for direct ***,security is one of the major concerns for proximity *** secure relay selection problem for D2D communications underlaying cellular network is studied in this ***,we define a relay selection area and derive the closed-form of outage probability in D2D links using a Poisson Point Process(PPP)***,in the defined relay selection area,we propose a secure relay selection scheme for the relay-assisted D2D communication system by exploiting the social relation as a security *** results show that the scheme based on social relation can greatly improve the security performance of relay-assisted D2D communications.

关键词： Device-to-device social-aware security poisson point process

不同静电纺丝膜上骨髓间充质干细胞的黏附、增殖与成血管平滑肌分化

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中国组织工程研究 2025年第4期29卷 661-669页

作者：孙现娟王秋花张锦艺杨杨杨王文双张晓晴滨州医学院基础医学院人体解剖与组织胚胎学教研室生物材料与组织再生国际合作联合实验室山东省烟台市264003 烟台毓璜顶医院妇科山东省烟台市264000

背景:临床上迫切需要小口径人工血管来治疗冠状动脉和外周动脉疾病,目前,血管组织工程已成为制备小口径人工血管的主要方法,选择合适的生物材料和细胞来源是小口径组织工程血管构建成功的关键因素。目的:观察4种静电纺丝膜材料对骨髓间... 详细信息

背景:临床上迫切需要小口径人工血管来治疗冠状动脉和外周动脉疾病,目前,血管组织工程已成为制备小口径人工血管的主要方法,选择合适的生物材料和细胞来源是小口径组织工程血管构建成功的关键因素。目的:观察4种静电纺丝膜材料对骨髓间充质干细胞增殖、黏附及分化为血管平滑肌细胞的影响。方法:分离提取SD大鼠骨髓间充质干细胞。将骨髓间充质干细胞分别接种于聚己内酯(PCL)、聚己内酯-透明质酸(PCL-HA)、聚己内酯-丝素蛋白(PCL-SF)、聚己内酯-明胶(PCL-GEL)静电纺丝膜材料上,培养1,3,7 d后,扫描电镜下观察材料上的细胞排布,鬼笔环肽染色观察材料上的细胞增殖与黏附,qRT-PCR检测材料上细胞分泌的CD90、Meflin、转化生长因子βmRNA表达;向血管平滑肌细胞诱导分化7 d后,qRT-PCR检测材料上细胞ɑ-平滑肌肌动蛋白mRNA表达。结果与结论:①扫描电镜下可见骨髓间充质干细胞在4种静电纺丝膜上均沿着静电纺丝膜的纤维走向排列;②鬼笔环肽染色显示,骨髓间充质干细胞在4种静电纺丝膜上分布规律,均沿着纤维走向呈现平行分布,并且PCL-HA、PCL-SF、PCL-GEL静电纺丝膜较PCL静电纺丝膜更有利于骨髓间充质干细胞的增殖、黏附,PCL-SF静电纺丝膜相较于PCL-HA、PCL-GEL静电纺丝膜更有利于骨髓间充质干细胞的增殖、黏附;③qRT-PCR检测显示,4种静电纺丝膜材料均可维持骨髓间充质干细胞CD90和Meflin的mRNA表达,组间比较差异无显著性意义(P>0.05);PCL-HA、PCL-SF、PCL-GEL组培养1,7 d的转化生长因子βmRNA表达高于PCL组(P<0.05),PCL-SF组培养3,7 d的转化生长因子βmRNA表达高于其他3组(P<0.05),PCL-HA组培养7 d的转化生长因子βmRNA表达高于PCL-GEL组(P<0.05);④qRT-PCR检测显示,PCL-SF组ɑ-平滑肌肌动蛋白mRNA表达高于其他3组(P<0.05),PCL-HA组ɑ-平滑肌肌动蛋白mRNA表达高于PCL组(P<0.05);⑤结果表明:相较于PCL、PCL-HA、PCL-GEL静电纺丝膜,PCL-SF静电纺丝膜与骨髓间充质干细胞结合更适合制备小口径组织工程血管。

关键词：骨髓间充质干细胞小口径组织工程血管静电纺丝聚己内酯聚己内酯-透明质酸聚己内酯-丝素蛋白聚己内酯-明胶