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Tracing enterococci persistence along a pork production chain from feed to food in China

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Animal Nutrition 2022年第2期9卷 223-232页

作者： Jianfei Zhao Rui Liu yanpeng sun Xiaojun Yang Junhu Yao College of Animal Science and Technology Northwest Agriculture&Forestry UniversityYangling712100China

The prevalence and transmission of vancomycin-resistant Enterococcus(VRE)in enterococci being as probiotics has been neglected in the scientific *** application of enterococci in feed,food and health products may cause VRE transmission through the food *** study evaluated phenotypic resistance of Enterococcus species to 20 antibiotics along a pork production chain from feed to *** also assessed the genetic diversity of Enterococcus faecium isolates.A total of 510 samples(feed,n=70;swine manure,n=400;swine carcasses,n=20,and retail pork,n=20)were collected in Beijing,China.A total of 328 enterococci isolates with 275 *** and 53 Enterococcus faecalis were identified using 16 S *** susceptibility to all enterococci isolates was conducted using the KeB method for 20 antibiotics from 9 *** sequence typing(MLST)was conducted on the *** isolates to survey the dissemination of enterococci in the pig *** results showed that only 26 enterococci isolates were sensitive to the 20 antibiotics,while half of the isolates(164/328)had acquired multi-drug *** resistant rate to furazolidone was 68.60%,followed by 42.99%to *** vancomycin-resistant *** isolates were isolated from feed origin and 2 from manure origin,with minimum inhibitory concentrations to vancomycin of 1,024,64,and 64 mg/mL,*** MLST outcomes showed that the 275 *** isolates belonged to 11 sequence types(ST)including ST40,ST60,ST94,ST160,ST178,ST296,ST361,ST695,ST726,ST812 and *** ST of the feedsourced VRE was ST1014,while the 2 manure-sourced VRE was ***1014 evolved from ST78,which was the dominant clonal complex in most cities of China,leading to the spreading of *** findings revealed the potential safety hazards of commercial probiotic enterococci in China and showed that there is a risk of the VRE horizontally transferring from feed to food.

关键词： Antimicrobial resistance Multilocus sequence typing Vancomycin-resistant enterococci

The Seismogenic Structure of the 2010 Suining Ms 5.0 Earthquake and its Geometry,Kinematics and Dynamics Analysis

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Acta Geologica Sinica(English Edition) 2011年第6期85卷 1277-1285页

作者： LU Renqi HE Dengfa JOHN Suppe MA Yongsheng GUAN Shuwei sun yanpeng GAO Jinwei Institute of Oil and Gas School of Earth and Space Sciences Peking University Beijing 100871 China College of Energy Resources China University ofGeosciences Beijing 100083 China The Department ofGeosciences TaiWan University. TaiPei 13-318 China Oil fieldExploration Production Department SINOPEC Beijing 100728 China Research Institute of Petroleum and Development of China Beijing 100083 China

In January 2010, the Suining Ms5.0 earthquake occurred in central Sichuan Basin, with the epicenter in Moxi-Longnvsi structural belt and a focal depth of 10 km. Based on structural interpretations of seismic profiles in this area, we recognized a regional detachment fault located at a depth of 9-10 km in the Presinian basement of the Suining area, transferring its slipping from NW to SE orientation. This detachment fault slipped from NW to SE, and underwent several shears and bends, which caused the basement to be rolled in and the overlaying strata fold deformation. It formed a fault-bend fold in the Moxi area with an approximate slip of 4 km. Correspondingly, the formation of the Moxi anticline is related to the detachment fault. With the earthquake＇s epicenter on the ramp of the detachment fault, there is a new point of view that the Suining earthquake was caused by re-activation of this basement detachment fault. Since the Late Jurassic period, under the influence of regional tectonic stress, the detachment fault transfered its slip from the Longmen Mountains （LMS） thrust belt to the hinterland of the Sichuan Basin, and finally to the piedmont zone of southwest Huayingshan （HYS）, which indicates that HYS might be the final front area of the LMS thrust belt.

关键词： Suining Ms5.0 earthquake Seismic interpretation Detachment fault Moxi anticline Longmen Mountains Sichuan Basin

交通基础设施建设、劳动力流动与城乡收入差距

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南京审计大学学报 2020年第3期17卷 103-111页

作者：孙延鹏青岛大学商学院山东青岛266100 青岛大学经济学院山东青岛266100

基于1992-2017年我国29个省区市的面板数据,采用非线性门槛模型系统地分析交通基础设施建设、劳动力流动和城乡收入差距之间的关系。研究结果表明:交通基础设施建设能够有效促进农业劳动力向非农业部门的流动,进而影响城乡收入差距,并... 详细信息

基于1992-2017年我国29个省区市的面板数据,采用非线性门槛模型系统地分析交通基础设施建设、劳动力流动和城乡收入差距之间的关系。研究结果表明:交通基础设施建设能够有效促进农业劳动力向非农业部门的流动,进而影响城乡收入差距,并且交通基础设施建设对城乡收入差距的影响并非呈现简单的线性相关关系,而是随着农村劳动力转移程度的变化呈现出“U”型的动态相关关系。当农村劳动力转移率低于0.157时,交通基础设施建设能够缩小城乡收入差距;当农村劳动力转移率超过0.288时,交通基础设施建设不利于缩小城乡收入差距,并且随着农村劳动力转移率的进一步提高,交通基础设施建设对城乡收入差距的负面影响会增大。

关键词：交通基础设施建设城乡收入差距劳动力流动收入分配对外开放程度教育发展水平

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蔬菜脱水试验台传动装置设计

农机化研究 2009年第4期31卷 57-60页

作者：孙传祝孙延鹏山东理工大学机械工程学院山东淄博255049

现有的蔬菜脱水设备生产能力较大,直接用于试验时,一次试验用料过多,更换加热方式麻烦,试验过程复杂。针对这些问题,设计了一小型蔬菜脱水试验台。该试验台体积小,一次试验用料少,大大降低了试验成本。对该试验台的传动和输送装置进行... 详细信息

现有的蔬菜脱水设备生产能力较大,直接用于试验时,一次试验用料过多,更换加热方式麻烦,试验过程复杂。针对这些问题,设计了一小型蔬菜脱水试验台。该试验台体积小,一次试验用料少,大大降低了试验成本。对该试验台的传动和输送装置进行了详细的结构设计及计算,同时还对其张紧装置和张紧机构进行了改进设计。改进后的传动及输送装置结构合理、传动平稳且试验方便,为蔬菜脱水设备的进一步研究及其产业化奠定了良好基础。

关键词：蔬菜脱水试验台传动装置输送装置

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四川盆地北部剑阁古隆起的厘定及其基本特征

地质学报 2013年第5期87卷 609-620页

作者：孙衍鹏何登发中国地质大学(北京)能源学院北京100083

古隆起成因机制及其演化的分析,可为探讨大陆陆内构造变形提供基础,古隆起也是重要油气勘探领域之一。地震剖面、钻井资料和野外露头等证据揭示,四川盆地北部须家河组上部地层缺失并非周边造山作用剥蚀形成,而是古隆起活动造成,本文称... 详细信息

古隆起成因机制及其演化的分析,可为探讨大陆陆内构造变形提供基础,古隆起也是重要油气勘探领域之一。地震剖面、钻井资料和野外露头等证据揭示,四川盆地北部须家河组上部地层缺失并非周边造山作用剥蚀形成,而是古隆起活动造成,本文称之为剑阁古隆起,对其进行厘定和描述。通过分析地震剖面和连井剖面的年代地层格架,并结合Bischke曲线分析法,确定古隆起的形成与演化历史。结合区域构造背景,分析古隆起成因。剑阁古隆起相对高部位的边界近似为须家河组缺失尖灭线,分布在江油—剑阁—广元—旺苍一带。它于晚三叠世须三期开始形成,主要发育期为须四期到须六期,持续到早侏罗世后衰亡,经历了一个完整的形成—演化—衰亡的隆起旋回,持续大约21Ma,造成约350m的地层沉积间断,后期改造使古隆起初始形态不复存在。剑阁古隆起的形成受控于勉略洋盆的关闭,大地构造位置属于晚三叠世扬子地块北缘前陆盆地的前隆部分,它的发现对分析扬子地块北缘构造演化和川北地区须家河组油气勘探具有重要意义。

关键词：四川盆地古隆起须家河组勉略洋前陆盆地

Imaging System of Remaining Information of Fingerprint in Paper

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Imaging System of Remaining Information of Fingerprint in Pa...

Real world epidemiological characteristics of acute ischemic stroke in young people in northwest Hubei Province

2007 8th International Conference on Electronic Measurement & Instruments（ICEMI’2007）

作者： sun yanpeng Shenyang Institute of Aeronautical Engineering shenyang 110136 China

This article elaborates on the testing principles and working procedures of the remaining trace on paper （mainly invisible fingerprints of sweat）.In order to keep the original testing samples intact,a new method is proposed to test and get image of the invisible of fingerprints of *** new approach is to test the difference on resistance between the remaining trace in paper and non-remaining trace,and input the tested data into *** approach makes use of software to convert the tested data into image and some method to obtain a keener image.

关键词： Remaining trace Invisible fingerprints of sweat Resistance Image enhancement

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Journal of Translational Neuroscience 2021年第2期6卷 1-7页

作者： Hui Huang Yi Bao Mengjiao Li Xiaodong Liu Xiaoqin Peng yanpeng sun Wei Huang Department of Neurology Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei Medical UniversityShiyan 442000China

Objective:acute ischemic stroke is oc-curing in younger and younger *** paper aims to explore the real-world epidemiological characteristics of young stroke patients in northwest ***:the information of acute stroke patients under 50 years old in northwest Hubei Province was collected,including age,gender,region,education level,smoking and drinking,onset season,etc,and epidemiological analysis was carried ***:a total of 344 patients with acute ischemic stroke were *** males accounted for 69.19%,and the average age was 44.94±5.61 years old;the females accounted for 30.18%,and the average age was 45.22±5.02 years *** distribution of patients varied,with most living in urban *** were more male patients than female *** proportion of patients with an education level below junior high school was higher than that of patients with an education level above junior ***-nine point thirty-six percent of all young people with stroke smoked and *** occurred in all seasons,but the incidence of stroke was relatively high in summer and *** was a significant difference in the ratio of males to females(P<0.001).Conclusion:the incidence rate of acute stroke in young people in northwest Hubei Province is *** the increase of age,men in all ages are more prone to strokes than *** incidence of stroke among young people in urban areas is higher than in surrounding *** incidence rate decreases with the increase of education *** strokes occur in summer and autumn than in winter and *** and drinking do not show obvious effects on the incidence rate.

关键词： ischemic stroke epidemiology degree of education season real world

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深井声波传输特性仿真分析

重庆理工大学学报（自然科学） 2018年第12期32卷 62-68页

作者：孙延鹏卢海琪沈阳航空航天大学沈阳110000

在油井通信传输系统中,利用油管管壁作为通信的信道,将井下与地面之间进行有效可靠的通信,需要研究声波沿管壁的传输特性。首先根据传递矩阵法研究一维理想油管管壁的声波传输模型,进而深入研究周期性的油管管壁和非周期性的油管管壁声... 详细信息

在油井通信传输系统中,利用油管管壁作为通信的信道,将井下与地面之间进行有效可靠的通信,需要研究声波沿管壁的传输特性。首先根据传递矩阵法研究一维理想油管管壁的声波传输模型,进而深入研究周期性的油管管壁和非周期性的油管管壁声波传输模型,将3种组合形式的井道进行综合考虑,并进行有效的对比。编写Matlab程序,通过计算机仿真分析声波沿管壁的传输特性。结果表明:声波通过一维理想的信道之后,为不具有选择性的一条直线;声波通过周期性的信道,输出是通带和阻带交替出现的波形,为梳状结构,但是改变系统的某一参量,输出的波形会发生变化;声波通过非周期性的信道,输出的结果和周期性的一样,输出通带变窄的梳状结构。该研究为从事相关工作的研究人员提供了技术支持和参考。

关键词：油管管壁声波传输传输特性传递矩阵法梳状结构

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激光光斑中心圆拟合定位算法的FPGA实现

红外与激光工程 2011年第5期40卷 970-973页

作者：孙延鹏梁小骜郎瑶沈阳航空航天大学电子信息工程学院辽宁沈阳110136

针对双目立体视觉测距系统的实时性要求,提出了一种改进的激光光斑中心定位算法,并在FPGA上进行了验证。该算法首先对图像进行阈值判定排除干扰光线,然后用Sobel算子对图像进行边缘检测得到边缘图像,最后再利用改进的圆心拟合算法进行... 详细信息

针对双目立体视觉测距系统的实时性要求,提出了一种改进的激光光斑中心定位算法,并在FPGA上进行了验证。该算法首先对图像进行阈值判定排除干扰光线,然后用Sobel算子对图像进行边缘检测得到边缘图像,最后再利用改进的圆心拟合算法进行中心定位。基于FPGA的硬件系统利用合理的流水线设计提高了数据处理的并行性,可以实时处理大量的数据,克服了传统算法在精度和速度上的不足。中心定位算法结果用于立体匹配,效果良好,完全满足设计需要。

关键词：中心定位圆心拟合 Sobel算子 FPGA