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Effects of the probability of pulse-like ground motions on landslide susceptibility assessment in near-fault areas

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Journal of Mountain Science 2023年第1期20卷 31-48页

作者： LIU Jing FU hai-ying ZHANG Ying-bin XU Pei-yi HAO Run-dan yu hai-hong HE yun-yong DENG hong-yan ZHENG Lu Department of Geotechnical Engineering School of Civil EngineeringSouthwest Jiaotong UniversityChengdu610031China CREC Sichuan Eco-City Investment Co. Ltd.Chengdu620562China Sichuan Highway Planning SurveyDesign and Research Institute Ltd.Chengdu610041China Department of Track and Underground Engineering School of Civil EngineeringFuzhou UniversityFuzhou350108China

Earthquake-induced strong near-fault ground motion is typically accompanied by largevelocity pulse-like component,which causes serious damage to slopes and *** not all near-fault ground motions contain a pulse-like component,it is important to consider this factor in regional earthquake-induced landslide susceptibility *** the present study,we considered the probability of the observed pulse-like ground motion at each site(PP)in the region of an earthquake as one of the conditioning factors for landslide susceptibility assessment.A subset of the area affected by the 1994Mw6.7 Northridge earthquake in California was *** explore and verify the effects of PP on landslide susceptibility assessment,seven models were established,consisting of six identical influencing factors(elevation,slope gradient,aspect,distance to drainage,distance to roads,and geology)and one or two factors characterizing the intensity of the earthquake(distance to fault,peak ground acceleration,peak ground velocity,and PP)in logistic regression *** results showed that the model considering PP performed better in susceptibility assessment,with an area under the receiver operating characteristic curve value of *** on the results of relative importance analysis,the contribution of the PP value to earthquakeinduced landslide susceptibility was ranked fourth after the slope gradient,elevation,and *** prediction performance of the model considering the pulse-like effect was better than that reported previously.A logistic regression model that considers the pulse-like effect can be applied in disaster prevention,mitigation,and construction planning in near-fault areas.

关键词： Earthquake Landslides Pulse-like ground motion Logistic regression Susceptibility assessment 1994 Northridge earthquake

Assessment of earthquake-induced landslide hazard zoning using the physics-environmental coupled Model

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Journal of Mountain Science 2023年第9期20卷 2644-2664页

作者： ZENG Ying ZHANG Ying-bin LIU Jing XU Pei-yi ZHU Hui yu hai-hong HE yun-yong Department of Geotechnical Engineering School of Civil EngineeringSouthwest Jiaotong UniversityChengdu 610031China CREC Sichuan Eco-City Investment Co. Ltd.Chengdu 420562China Sichuan Highway Planning SurveyDesign and Research Institute Ltd.Chengdu 610041China

In order to prevent and mitigate disasters,it is crucial to immediately and properly assess the spatial distribution of landslide hazards in the earthquake-affected ***,there are primarily two categories of assessment techniques:the physical mechanism-based method(PMBM),which considers the landslide dynamics and has the advantages of effectiveness and proactivity;the environmental factor-based method(EFBM),which integrates the environmental conditions and has high *** order to obtain the spatial distribution of landslide hazards in the affected area with near realtime and high accuracy,this study proposed to combine the PMBM based on Newmark method with EFBM to form Newmark-Information value model(N-IV),Newmark-Logic regression model(N-LR)and Newmark-Support Vector Machine model(N-SVM)for seismic landslide hazard assessment on the Ludian Mw 6.2 earthquake in *** predicted spatial hazard distribution was compared with the actual cataloged landslide inventory,and frequency ratio(FR),and area under the curve(AUC)metrics were used to verify the model's plausibility,performance,and *** to the findings,the model's accuracy is ranked as follows:N-SVM>N-LR>N-IV>*** an AUC value of 0.937,the linked N-SVM was discovered to have the best *** research results indicate that the physics-environmental coupled model(PECM)exhibits accuracy gains of 46.406%(N-SVM),30.625%(N-LR),and 22.816%(N-IV)when compared to the conventional Newmark *** shows varied degrees of improvement from 2.577%to 12.446%when compared to the single *** study also uses the Ms 6.8 Luding earthquake to evaluate the model,showcasing its trustworthy in forecasting power and steady *** the suggested PECM in this study can adapt to complicated earthquake-induced landslides situations,it aims to serve as a reference for future research in a similar field,as well as to help with emergency planning and response in earthquakepro

关键词： Earthquake-induced landslides Newmark method Coupled model Ludian earthquake Landslide distribution

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工程服务外包中的激励机制和定价策略研究

浙江大学学报（理学版） 2011年第2期38卷 150-156页

作者：俞海宏浙江大学管理学院浙江杭州310058 宁波大学海运学院浙江宁波315211

工程服务外包是制造企业应对竞争、专注核心业务、降低成本的重要途径之一.在服务外包及由此形成的服务供应链的运作中,由于供应商直接向最终客户提供服务以及服务结果难以被衡量等原因,存在着道德风险问题,需要制造商向供应商提供激励... 详细信息

工程服务外包是制造企业应对竞争、专注核心业务、降低成本的重要途径之一.在服务外包及由此形成的服务供应链的运作中,由于供应商直接向最终客户提供服务以及服务结果难以被衡量等原因,存在着道德风险问题,需要制造商向供应商提供激励.文章研究了工程服务外包中的最优激励机制问题,运用连续工作表现的道德风险模型构建了激励模型,得出最优的激励转移支付,并详细分析了供应商努力的必要性条件和参与性要求、不同激励程度的机制设计以及不同谈判力要求下的激励机制控制等问题,在此基础上提出了工程服务外包的定价模式.认为:1)只有符合特定需求分布条件的服务才需要激励使激励有效;2)最优激励转移支付存在一个震荡间断点;3)可以通过改变参数来调整激励的程度以及成员间的利润分配比例.

关键词：工程服务外包服务供应链激励机制

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生态哲学视野中的教师教育创新

大学教育科学 2014年第3期 66-71页

作者：于海洪长江师范学院教务处

从生态哲学的视域重新审视教师教育的人才培养模式,发现当前的教师教育存在教育生态环境不平衡、学术性和师范性对立、人才培养模式生态链断裂等困境。为了解决这些问题,应当运用生态哲学观点,遵循以尊重生命的存在为前提、以回归生活... 详细信息

从生态哲学的视域重新审视教师教育的人才培养模式,发现当前的教师教育存在教育生态环境不平衡、学术性和师范性对立、人才培养模式生态链断裂等困境。为了解决这些问题,应当运用生态哲学观点,遵循以尊重生命的存在为前提、以回归生活的统一性和整体性为基础、从学术取向抑或师范取向转向生态取向、建设教师专业发展的人文生态链四个原则。各级政府要对教师个体活动予以尊重,优化"教师教育生态环境",打破"师范性"与"学术性"在课程体系上的樊篱,构建"四位一体"的教师教育途径。

关键词：生态哲学人才培养教师教育行动策略

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外海复杂地质码头结构选型

水运工程 2022年第5期 66-71页

作者：虞红海宁波舟山港集团浙江宁波315800

针对外海复杂条件下码头结构选型问题,结合宁波某30万吨级卸船码头工程,根据水文地质特点,从结构形式适应性、施工工艺和工程造价等方面选择斜嵌岩桩和直嵌岩桩两种基桩形式作为研究对象,并采用对比分析法,从技术、经济等方面对斜嵌岩... 详细信息

针对外海复杂条件下码头结构选型问题,结合宁波某30万吨级卸船码头工程,根据水文地质特点,从结构形式适应性、施工工艺和工程造价等方面选择斜嵌岩桩和直嵌岩桩两种基桩形式作为研究对象,并采用对比分析法,从技术、经济等方面对斜嵌岩桩和直嵌岩桩进行分析。结果表明,与较大直径的直嵌岩桩相比,在安全经济方面,斜嵌岩桩具有桩径小、结构抗水平荷载能力强、工程造价低的优点,更为经济合理;在斜嵌岩桩施工工艺方面,采用回旋钻机施工质量有较高可靠性;在施工期稳桩措施方面,采用碎石基床稳桩保证嵌岩桩稳定较实用,适应外海施工期相对较短的要求。

关键词：嵌岩桩人工基床斜桩旋挖钻机

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Risk Factors for Lymph Node Metastasis and Endoscopic Treatment Strategies of Undifferentiated Early Gastric Cancer

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Clinical oncology and cancer researeh 2011年第3期8卷 181-184页

作者： Yi FANG Tao YAN Ji-dong GAO Xin-yu BI hong ZHAO hai-tao ZHOU Zhen HUANG Jian-qiang CAI Department of Abdominal Surgery Cancer Hospital Chinese Academy of Medical Sciences Beijing 100021 China

OBJECTIVE To discuss the effects of clinico-pathological features on lymph node metastasis （LNM） in undifferentiated EGC （early gastric cancer）, as well as identify the appropriate medical management. METHODS From January 1999 to June 2011, 352 patients were treated for undifferentiated EGC in our hospital. All patients had undergone gastrectomy with regional lymphadenectomy. We used univariate and multivariate associated with lymph node entiated EGC. analyses to determine the features metastasis in patients with undiffer- RESULTS Signet ring cell carcinoma （SRC） was more common in patients with undifferentiated EGC than other undifferentiated carcinoma （UDC）. SRC had a tendency to be confined to the mucosa, with a smaller size than other UDC. The incidence of LNM for SRC was lower than that for other UDC. Multivariate analysis showed that LNM was associated with the sex, tumor size, depth of invasion, lymphovascular invasion, and histological type. CONCLUSION Complete endoscopic resection is suitable for SRC- type intramucosal EGC, which is less than 2 cm in diameter without lymphovascular invasion in the postoperative histological examination.

关键词： undifferentiated early gastric cancer endoscopic submucosal dissection lymph node metastasis

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砂石桩非连续屏障隔振试验研究

水运工程 2018年第2期 203-205,210页

作者：虞红海宁波舟山港集团有限公司浙江宁波315800 宁波港工程项目管理有限公司浙江宁波315800

针对强夯施工产生的强烈地面振动会对周围人和环境产生不利影响、采用连续屏障隔振成本较高的问题,进行强夯振动试验和砂石桩隔振试验研究。对比研究不同砂石桩材料、桩距的试验方法,得到不同材料、桩距砂石桩的隔振效果差异,得出"砂石... 详细信息

针对强夯施工产生的强烈地面振动会对周围人和环境产生不利影响、采用连续屏障隔振成本较高的问题,进行强夯振动试验和砂石桩隔振试验研究。对比研究不同砂石桩材料、桩距的试验方法,得到不同材料、桩距砂石桩的隔振效果差异,得出"砂石桩屏障对强夯具有较好的隔振效果,且隔振效果随砂石桩间距变小而增强"的结论。

关键词：砂石桩非连续屏障强夯振动现场试验

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农机设备管理系统中决策支持模型的研究

农机化研究 2008年第7期30卷 66-68页

作者：俞海红浙江经贸职业技术学院杭州310018

开发了基于***和数据库技术的网络化农机设备管理系统,并增加了顾客满意度模型作为决策支持模型。顾客满意度模型采用德尔菲法确定各指标权重,同时根据网上各顾客对设备及厂家满意度指标评分得出最终结果。该系统设计了决策支持模型的... 详细信息

开发了基于***和数据库技术的网络化农机设备管理系统,并增加了顾客满意度模型作为决策支持模型。顾客满意度模型采用德尔菲法确定各指标权重,同时根据网上各顾客对设备及厂家满意度指标评分得出最终结果。该系统设计了决策支持模型的功能并列举了应用实例,为设备管理者提供了辅助决策管理方法。

关键词：设备管理系统德尔菲法顾客满意度

数量柔性契约下引入激励的服务供应链协调性研究

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浙江大学学报（理学版） 2012年第3期39卷 352-360,366页

作者：俞海宏刘南宁波大学海运学院浙江宁波315211 浙江大学管理学院浙江杭州310058

基于数量柔性契约的交易环境,建立服务供应链激励模型和协调模型,分析了其内在机制.认为服务供应链不同于产品供应链,为了实现效益最优化,需要综合服务提供商向专业服务供应商实施努力激励;同时,激励机制的出现使供应链的协调模型发生... 详细信息

基于数量柔性契约的交易环境,建立服务供应链激励模型和协调模型,分析了其内在机制.认为服务供应链不同于产品供应链,为了实现效益最优化,需要综合服务提供商向专业服务供应商实施努力激励;同时,激励机制的出现使供应链的协调模型发生极大改变,直接影响了服务供应链协调的基本要求、协调可行性条件和利润分配柔性等性质.分析得出,数量柔性契约下服务供应链也能够实现协调,而且会拥有良好的利润分配柔性,但服务供应链的协调实现受制于特定服务供应链的相关参数影响,如供应商的努力成本、不同努力下的需求分布特点等,因此这一问题变得更加复杂.

关键词：服务供应链数量柔性契约激励协调