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IEEE/CAA Journal of Automatica Sinica 2023年第2期10卷 550-553页

作者： Zhenyong Zhang Yan Qin Jingpei Wang Hui Li Ruilong Deng the State Key Laboratory of Public Big Data and the College of Computer Science and Technology Guizhou UniversityGuiyang 550025China the School of Chemical and Biomedical Engineering Nanyang Technological UniversitySingapore 639798Singapore the State Key Laboratory of Industrial Control Technology and the College of Control Science and Engineering Zhejiang UniversityHangzhou 310027China IEEE

Dear Editor,dummy attack(DA), a deep stealthy but impactful data integrity attack on power industrial control processes, is recently recognized as hiding the corrupted measurements in normal measurements. In this letter, targeting a more practical case, we aim to detect the oneshot DA, with the purpose of revealing the DA once it is launched.Specifically, we first formulate an optimization problem to generate one-shot DAs. Then, an unsupervised data-driven approach based on a modified local outlier factor(MLOF) is proposed to detect them.

关键词： dummy Power letter

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dummy ROV试验平台的设计及应用

中国造船 2019年第A1期60卷 160-164页

作者：李爱华郝静徐玉宁深圳海油工程水下技术有限公司深圳518067

dummy ROV用于模拟ROV,它是拥有工作级ROV的尺寸、远程操作模式和甲板操作功能的试验平台。在深水工程项目通常会使用尚未参加海上施工项目的ROV设备进行相关操作测试。但由于ROV水下作业环境与水上的差别,用于水下生产设备的ROV系统的... 详细信息

dummy ROV用于模拟ROV,它是拥有工作级ROV的尺寸、远程操作模式和甲板操作功能的试验平台。在深水工程项目通常会使用尚未参加海上施工项目的ROV设备进行相关操作测试。但由于ROV水下作业环境与水上的差别,用于水下生产设备的ROV系统的陆地测试的效果往往不理想。以ROV使用操作要求及ROV硬件设备为基础搭建的dummyROV具备了工作级ROV的陆地操作能力,而且在陆地操控的耐受性上强于工作级ROV。

关键词： dummy ROV 模拟仿真光纤通讯机械手

The Reliability of the Anaerobic Power dummy Throw Test in High School Wrestlers:A Pilot Study

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Journal of Sports Science 2018年第3期6卷 193-199页

作者： Eric Lopez Ryan Luke Kent J.Adams Mark DeBeliso Department of Kinesiology and Outdoor Recreation Southern Utah UniversityCedar CityUT 84720USA Department of Kinesiology California State University Monterey BaySeasideCA 93955USA

AP(anaerobic power)output is an important physical characteristic that is required to succeed in sports such as wrestling.The Wingate test is considered the Gold Standard for assessing AP but is not specific to the sport of wrestling.The purpose of this study was to examine the reliability of a novel field test known as the LWAPT(Lopez wrestling anaerobic power test)for the assessment of AP.The participants were male high school wrestlers(n=10,age:17.0±0.8 yrs,mass:70.9±10.2 kgs).The participants met on one occasion in order to complete the testing protocol.The protocol initiated with the participants completing a 10-15 minute dynamic WU(warm-up)that included three practice dummy throw attempts(dummy mass=31.75 kgs).Following the dynamic WU(≈5 minutes),the participants performed two trials of the LWAPT.In order to perform the LWAPT,wrestlers stood behind the wrestling dummy in a squat position with legs bent at 45-90 degrees.Next the wrestlers wrapped their arms around the waist of the dummy and on the signal“go”the wrestlers quickly exploded up,lifting the dummy by getting triple extension with the ankles,knees and hips as one would in a power clean.After the wrestler was fully extended,he turned in midair in order to drive the dummy onto its stomach on the ground,where the wrestler was on top of the back of the dummy(a common position after an opponent has been thrown).The participant then repositioned the dummy to the original position to execute another throw.The participants completed as many dummy throws as possible during the one minute trials.The LWAPT trials were separated by 15 minutes.The trial scores were 15.6±2.5 and 17.2±1.5 throws respectively.The interclass and intraclass reliability coefficients were r=0.84 and ICC=0.80.The standard error of the measure was SEm=1.0 throws with 90%confidence limits of UL:1.7,LL:0.7.The mean difference between trials was 1.6±1.4 throws(90%confidence limits of UL:2.4,LL:0.8).Bland-Altman plots suggested agreement between trials with no evidence of heteroscedasticity

关键词： Reliability dummy wrestling high school

Effect coding与dummy coding赋值方法及其医学研究应用

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中国卫生统计 2013年第2期30卷 302-303,306页

作者：高俊宏董丽芳颜虹王多劳中国兵器工业第五二一研究所 710065 陕西省疾病预防控制中心艾滋病防制科 710054 西安交通大学医学院伦敦大学热带病与卫生学院

目的介绍effect coding的变量赋值方法及其在医学研究中的应用,并与dummy coding方法比较。方法将2005年调查中搜集到西部10省40个县的村医20125张处方作为分析资料,省作为分类变量,分别采用dummy coding与effect coding两种编码方式纳... 详细信息

目的介绍effect coding的变量赋值方法及其在医学研究中的应用,并与dummy coding方法比较。方法将2005年调查中搜集到西部10省40个县的村医20125张处方作为分析资料,省作为分类变量,分别采用dummy coding与effect coding两种编码方式纳入模型,分析处方费用的影响因素,并做比较。结果分类变量的编码方式不同,不会影响回归分析的结果。疾病种类、村医的文化程度、患者年龄、在治疗中是否使用注射剂以及处方所开出的药物个数都是村医处方费用的影响因素。结论 Effect coding在回归的系数的解释方面有其独到的优点,各省份的回归系数之间可以直接进行大小的比较,回归系数的正负表示该省的处方费用较平均水平的高低。

关键词： effect coding dummy coding处方费用

Underwater explosion effects of 60 mm H.E. mortar bomb on a cylindrical concrete structure-PIT

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Defence Technology（防务技术） 2019年第1期15卷 65-71页

作者： Faruk Razic Burek Miralem Defense Technologies Department University of Sarajevo Faculty of Mechanical Engineering University of Sarajevo Pretis d.d. Igmanska bb

PIT tests are usually performed when a mass distribution of High Explosive(H.E) projectile fragments is required. This paper shows the underwater detonation effects of 60 mm, M90 H.E. mortar bomb filled with Comp. B on cylindrical concrete structure(concrete pipe closed at one end-similar to a PIT test)which is 2 m high(inner height) with inner diameter of also 2 m. Thickness of both wall and bottom of a pipe is 0.35 m. Detailed characteristics of concrete which is used for manufacturing of a pipe are specified. Mortar bomb is submerged directly in to the water(no free airspace around the bomb) with the nose pointing to the bottom of a pipe. Number and mass of fragments after detonation are presented by table and photographs. Fragments of dummy fuze, through which blasting cap was protruded, are collected and reassembled to form a shape of a fuze after detonation where expanding of fuze material due to a detonation products is visualized. After underwater detonation, detonation of the same mortar bomb is performed in an empty pipe and the effects of this kind of detonation are observed. Distance at which fragments generated from submerged mortar bomb will not reach concrete pipes wall is also determined.

关键词： Underwater explosion Mortar bomb Blast Comp B dummy fuze Fragments

CIRD-F:Spread and Influence of COVID-19 in China

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Journal of Shanghai Jiaotong university(Science) 2020年第2期25卷 147-156页

作者：周凌云吴凯伟刘涵之高远宁高晓沨 Antai College of Economics and Management Shanghai Jiao Tong UniversityShanghai 200240China SJTU-ParisTech Elite Institute of Technology Shanghai Jiao Tong UniversityShanghai 200240China School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

The outbreak of coronavirus disease 2019(COVID-19)has been spreading rapidly in China and the Chinese government took a series of policies to control the epidemic.Therefore,it will be helpful to predict the tendency of the epidemic and analyze the influence of official policies.Existing models for prediction,such as cabin models and individual-based models,are either oversimplified or too meticulous,and the influence of the epidemic was studied much more than that of official policies.To predict the epidemic tendency,we consider four groups of people,and establish a propagation dynamics model.We also create a negative feedback to quantify the public vigilance to the epidemic.We evaluate the tendency of epidemic in Hubei and China except Hubei separately to predict the situation of the whole country.Experiments show that the epidemic will terminate around 17 March 2020 and the final number of cumulative infections will be about 78191(prediction interval,74872 to 82474).By changing the parameters of the model accordingly,we demonstrate the control effect of the policies of the government on the epidemic situation,which can reduce about 68%possible infections.At the same time,we use the capital asset pricing model with dummy variable to evaluate the effects of the epidemic and official policies on the revenue of multiple industries.

关键词： coronavirus disease 2019(COVID-19) epidemic prediction model negative feedback capital asset pricing model dummy variable

Variable-top stem biomass equations at tree-level generated by a simultaneous density-integral system for second growth forests of roble, raulí,and coigüe in Chile

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Journal of Forestry Research 2019年第3期30卷 993-1010页

作者： Carlos Valenzuela Eduardo Acuna Alicia Ortega Geronimo Quinonez-Barraza Jose Corral-Rivas Jorge Cancino Departamento Manejo de Bosques y Medio Ambiente Facultad de Ciencias ForestalesUniversidad de Concepcion Victoria 631Barrio Universitario4070386 ConcepcionChile Instituto de Bosques y Sociedad Facultad de Ciencias Forestales y Recursos NaturalesUniversidad Austral de ChileCampus Isla Teja5110566 ValdiviaChile Campo Experimental Valle del Guadiana Instituto Nacional de Investigaciones Forestales Agricolas y Pecuarias (INIFAP)km 4.5 Carretera Durango-Mezquital34170 DurangoDGOMexico Instituto de Silvicultura e Industria de la Madera Universidad de Juarez del Estado de Durango34120 DurangoMexico

Variable-top stem biomass models at the tree level for second growth forests of roble (Nothofagus obliqua), rauli(Nothofagus alpina), and coigüe (Nothofagus dombeyi) were fitted by a simultaneous density-integral system, which combines a stem taper model and a wood basic density model. For each model, an autoregressive structure of order 2 and a power equation of residual variance were incorporated to reduce residual autocorrelation and heteroscedasticity, respectively. By using dummy variables in the regression analysis, zonal effects on the parameters in the variable-top stem biomass equations were detected in roble. Consequently, equations for clusters of zones were obtained. These equations presented significant parameters and a high precision in both fitting and validation processes (i.e., CV<11.5% and CVp<11.9%, respectively), demonstrating that they are unbiased. The advantage of these types of functions is that they provide estimates of volume and biomass of sections of the stem, defined between any two points of the stem in the three species. Thus, depending on the final use of the wood and the dimensions of the tree, a stem fraction can be quantified in units of volume and the remaining fraction in units of weight.

关键词： Autocorrelation Density-integral dummy variables Autoregressive error structure Heteroscedasticity

Development of an occupant restraint system model and parametric study on equivalent crash pulse in vehicle frontal offset crash

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Journal of Beijing Institute of Technology 2012年第2期21卷 203-209页

作者：李志刚张金换马春生 State Key Laboratory of Automotive Safety and Energy Tsinghua University

Studies were conducted to evaluate driver injury metrics with varying crash pulse in offset crash. First, a vehicle finite element （ FE ） model and an occupant restraint system （ORS） model were developed and validated against tests; then, the crash pulse collected from the test vehicle was equivalent to a dual-trapezoid shape pulse which will be quantitatively described by six parameters and was put into the ORS model; finally, parametric studies were conducted to analyze the sensitivi- ties of parameters of equivalent crash pulse on head resultant acceleration, head injury criteria （HIC）, neck axial force and chest deformation. Results showed that the second peak value of the crash pulse was statistically significant on all these injury criteria （P = 0. 001, 0. 000, 0. 000, 0. 000 re- spectively）, the first peak level had a negative significantly effect on all the criteria aforementioned except the chest deformation （P = 0. 011, 0. 038, and 0. 033 respectively）, and the interaction of the time-points of first and second peak values had a significant influence on head resultant acceleration （P = 0. 03 ）. A higher first peak value and a lower second peak value of the crash pulse could bring deeply lower injury metrics.

关键词： offset crash dummy parametric study injury metrics sensitivity

BIOSID dummy撞击实验的计算机模拟研究

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爆炸与冲击 2001年第3期21卷 173-178页

作者：赵隆茂太原理工大学山西太原030024

给出了一个BIOSIDdummy侧撞有限元模拟结果 ,和实验结果比较验证后可知该模型是可靠有效的。这一模型不仅可以用于任何侧撞情况下车辆乘员损伤防护模拟的研究。

关键词： BIOSID dummy 有限元模拟 VC TTI 撞击实验车辆安全性乘员损伤汽车

Injury Biomechanics and Crash dummy

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Injury Biomechanics and Crash Dummy