Study of main body element of crustal strain and its relationship with moderate-strong earthquakes

In this paper, progress in strain study of blocks and faults by GPS data are discussed, and the concept that active structures between blocks are the main body of crustal strain is clarified. By energy transfer principle of elastic mechanics, the relation between strain around faults and tectonic force on fault surfaces is set up and main body element model of crustal strain is constructed. Finally, the relation between mechanical evolution of model and seismogenic process of Kunlun earthquake （Ms=8.1） is discussed by continuous GPS data of datum stations. The result suggests that the relatively relaxed change under background of strong compressing and shearing may help to trigger moderate-strong earthquakes.

Safety Parts of Body to Respiration with Breathing Apparatus in Dangerous Zone

People are witnesses of life imperilling and working background too, as today, even during the evolution. People＇s life interface is disturbed with different shapes of contamination： natural disasters （floods, earthquakes, volcanic eruptions and the other）; on purpose or accidentally-different shapes like： wars, fires, chemical fates, using of dangerous materials in production processes and everyday life... In these mentioned specific conditions, breathing is imperiled, like the vital function of men＇s life and working interfaces. With the technical-technology progress, it is enclosed the development equipment for protection and safety of the respiratory parts of body, faces and eyes, regard to breathing apparatus. Applying the breathing apparatus, the total protection of the respiratory parts of the body, faces and eyes to aggressive materials, smoke and warmth is enabled. Today in the world there are many producers of breathing apparatus with similar technical-technological solutions, of which should be mentioned the main ones： MSA Auer, Dr/iger and Interspiro. Using of the breathing apparatus in practice, continual performation of different activities without consequences for the health and life of the user is enabled, what firstly depends on the user＇s education, regular using, controlling examination and maintenance/servicing.

The Construction of Intensive and Organized Agricultural Industrialization Model with Farmers as the Main Body

The current agricultural conflicts of China are analyzed and the forms and drawbacks of current agricultural industrial structure are listed.The situations for intensifying the farmland with appropriate scale are analyzed from the aspects of policy,farmers,farms and modernization of agriculture.It is pointed out that the situations for the intensive use of land are becoming mature.Taking the single pig-breeding chain as an example,the agricultural industrialization model,which takes farmers as the main body,is expounded.Besides,its functions and significance in solving "the three agriculture problems" and facilitating the modernization of agriculture are discussed.

The Planning, Organization and Management of Post-disaster Reconstruction of the Lushan Earthquake Based on the Local as the Main Body

A new organization and management mechanism with the local government as the main body was created during the post-disaster reconstruction of the "4. 20 " Lushan earthquake,in which the experiences and lessons were drawn from the "5. 12"Wenchuan earthquake. Correspondingly, the local government conducted an exploration of the organization and management mode in the field of planning and construction. The effective experiences have been accumulated, including working out a full coverage planning,taking the leading part in the urban-rural planning,and exercising whole space control over the disaster area. An innovation management mode named as "Five Generals Pattern"was implemented in the construction projects. In view that the rural housing reconstruction was a weak link, a new approach to improving the construction management was investigated,by means of strengthening on-site supervision,establishing a technical platform,and bolstering public participation.

Dynamic genetic analysis for body weight and main length ratio in turbot Scophthalmus maximus

The objective of this study was to estimate genetic parameters of body width(BW)to body length(BL)ratio(BW/BL)and of body weight traits(BWT)in turbot,and to elucidate the genetic mechanism of the two traits during ontogeny by dynamic genetic analysis.From 3 to 27 months,BW,BL and BWT of each communally stocked fish were measured every 3 months.The BW/BL ratio was measured at different sampling ages.A twotrait animal model was used for genetic evaluation of traits.The results showed that the heritability values of BW/BL ratio ranged from 0.2168 to 0.3148,corresponding to moderate heritability.The BWT heritability values ranged from 0.2702 to 0.3479 corresponding to moderate heritability.The heritability of BW/BL ratio was lower than that of BWT,except at 3 months of age.Genetic correlation between BW/BL ratio and BWT decreased throughout the measurement period.Genetic correlations were higher than the phenotypic correlations.The current results for estimating genetic parameters demonstrate that the BW/BL ratio could be used as a phenotypic marker of fast-growing turbot,and the BW/BL ratio and BWT could be improved simultaneously through selective breeding.

Kenyan Wool Fiber Properties Sampled from Different Sheep Body Parts

This study provides information on fleece characteristics for stakeholders in a wool trade to make sheep farming more viable and profitable for farmers. Wool fiber samples were taken from four sheep body parts of the 95 sheep. Tests were conducted to analyze the fiber diameter,length,color,and strength. Correspondingly,fiber surface morphology and the medullated fibers were also analyzed and the results were reported. The fiber characteristics from the shoulder and flank were better than those shorn from back and belly/legs. From the results, the values of the measured parameters suggest potential for improvement of economical qualities and in fostering the economic and industrial development

Analysis of the Main Body the Object and their Relationship Concerning Research of Traditional Chinese Medicine

This paper is the analysis of the main body, the object and their relationship concerning research of traditional Chinese medicine. The result proved that the main body of research of traditional Chinese medicine is researchers who possessed the fundamentals of traditional Chinese medicine. It is the objects of research of traditional Chinese medicine that origin of a class of traditional Chinese medical literature consisting of herbals which focus on descriptions of individual drugs; the relationship of the technological process of preparing Chinese medicine, as by parching, roasting, baking, steaming, soaking, and simmering, etc.;and technology of separating, extracting and purifying for composition; traditional Chinese medicine dynamics of one of the 12 two-hour periods into which the day was formerly divided before the introduction of western chronology; compatibility of medicines in active compositions; patent, effectiveness for a given period of time and constantly changing of traditional Chinese medicine.The relationship between the main body and the objects was that the former depends on the latter ones and the main body has subjective initiative as fully as possible.

Research on Characteristics of Main Body and Role of Farmers and Government in Socialist New Village Construction

This paper expounds the connotation of main body of new socialist village construction,and the duplex main body characteristics of farmers and government.It points out that the main body of society should be the state holding public power,and the main body of nature or practice is the farmer who participates in production and living activities in rural areas and supports the existence of rural society.It also expounds the dominant position of duplex main body in new village construction,wherein the government is the main body which administers public power in the field of public power in new village construction,while the farmer is the main body who administers private rights in the field of non-public rights in new village construction.It generalizes and unravels the role of duplex main body of farmers and government in new village construction,and analyzes the relationship of role of duplex main body between government and farmers as follows:the government dominates over rural development,and the government,as main body,plays dominant role in the field of rural public power and construction of social environment,while the farmers are main participators and constructors,who play significant role;in construction of rural non-public power field,the farmers play the role of main body,and the government plays the role of guidance and service.In new village construction,the government and farmers play the role abreast,which is an important prerequisite and guarantee of constructing new village.In the process of government's fulfilling responsibility in new village construction,the outdated administrative concept exists,and in the process of administering and promoting new village construction,the farmers' quality is yet to be promoted.As for these problems,three countermeasures are put forward as follows:transform concept;transform style of work and transform and exert advantage of organization.

Collaborative Performance Analysis and the Establishement of Main Body of Agricutlural Technology Innovation

Relying on the relevant data from China Statistical Yearbook and Chinese Rural Statistical Yearbook,the coolabarative performance of main body of agricutlural technology innovation is evaluated by taking quaternary-parties innovation body as the sujects and by establishing the index system from the perspectives of input and output.The results show serious dislocation of main body and bad collabrative performance.On the basis,the quaternary-parties motivation system cocerning agricutlural enterpises,agricutlural science and technology acanamy,rural hosueholds and governments is established.The system is capable of integrating market,sciencetific reserch and diffusion collection into a whole part and solving the seperation of agricutlural innovation supply and demand.

基于YOLO v8n-seg-FCA-BiFPN的奶牛身体分割方法

奶牛身体部位的精准分割广泛应用于奶牛体况评分、姿态检测、行为分析及体尺测量等领域。受奶牛表面污渍和遮挡等因素的影响,现有奶牛部位精准分割方法实用性较差。本研究在YOLO v8n-seg模型的基础上,加入多尺度融合模块与双向跨尺度加权特征金字塔结构,提出了YOLO v8n-seg-FCA-BiFPN奶牛身体部位分割模型。其中,多尺度融合模块使模型更好地提取小目标几何特征信息,双向跨尺度加权特征金字塔结构实现了更高层次的特征融合。首先在奶牛运动通道处采集奶牛侧面图像作为数据集,为保证数据集质量,采用结构相似性算法剔除相似图像,共得到1 452幅图像。然后对目标奶牛的前肢、后肢、乳房、尾部、腹部、头部、颈部和躯干8个部位进行标注并输入模型训练。测试结果表明,模型精确率为96.6%,召回率为94.6%,平均精度均值为97.1%,参数量为3.3×10^(6),检测速度为6.2 f/s。各部位精确率在90.3%~98.2%之间,平均精度均值为96.3%。与原始YOLO v8n-seg相比,YOLO v8n-seg-FCA-BiFPN的精确率提高3.2个百分点,召回率提高2.6个百分点,平均精度均值提高3.1个百分点,改进后的模型在参数量基本保持不变的情况下具有更强的鲁棒性。遮挡情况下该模型检测结果表明,精确率为93.8%,召回率为91.67%,平均精度均值为93.15%。结果表明,YOLO v8n-seg-FCA-BiFPN网络可以准确、快速地实现奶牛身体部位精准分割。

基于Altair Inspire的四旋翼无人机机身部件轻量化设计方法

无人机的续航能力是其性能优劣的一个重要指标,而影响续航的最主要因素是机身的质量,为了减轻无人机机身部件质量,利用Altair Inspire轻量化设计软件,对一种四旋翼无人机机身部件进行拓扑优化,几何重构、强度校核、并自动拟合重构得到优化模型,优化后的该模型仍存在一些缺陷,最后通过手动拟合重构得到进一步优化,达到在强度、最大位移和最小安全系数满足条件的情况下,尽可能减轻模型的质量,以达到轻量化的设计目的。结果表明,在满足强度、最大位移和最小安全系数要求的条件下,实现了71.8%的减重,有效减轻了质量,提高了无人机的续航能力,为无人机的轻量化设计提供了一种可行的方法。

Method of Measuring Fixture Automatic Design and Assembly for Auto-Body Part

A method of 3-D measuring fixture automatic assembly for auto-body part is presented. Locating constraint mapping technique and assembly rule-based reasoning are applied. Calculating algorithm of the position and pose for the part model, fixture configuration and fixture elements in virtual auto-body assembly space are given. Transforming fixture element from itself coordinate system space to assembly space with homogeneous transformation matrix is realized. Based on the second development technique of unigraphics（UG）, the automated assembly is implemented with application program interface （API） function. Lastly the automated assembly of measuring fixture for rear longeron as a case is implemented.

Research on intelligent search-and-secure technology in accelerator hazardous areas based on machine vision

Prompt radiation emitted during accelerator operation poses a significant health risk,necessitating a thorough search and securing of hazardous areas prior to initiation.Currently,manual sweep methods are employed.However,the limitations of manual sweeps have become increasingly evident with the implementation of large-scale accelerators.By leveraging advancements in machine vision technology,the automatic identification of stranded personnel in controlled areas through camera imagery presents a viable solution for efficient search and security.Given the criticality of personal safety for stranded individuals,search and security processes must be sufficiently reliable.To ensure comprehensive coverage,180°camera groups were strategically positioned on both sides of the accelerator tunnel to eliminate blind spots within the monitoring range.The YOLOV8 network model was modified to enable the detection of small targets,such as hands and feet,as well as larger targets formed by individuals near the cameras.Furthermore,the system incorporates a pedestrian recognition model that detects human body parts,and an information fusion strategy is used to integrate the detected head,hands,and feet with the identified pedestrians as a cohesive unit.This strategy enhanced the capability of the model to identify pedestrians obstructed by equipment,resulting in a notable improvement in the recall rate.Specifically,recall rates of 0.915 and 0.82were obtained for Datasets 1 and 2,respectively.Although there was a slight decrease in accuracy,it aligned with the intended purpose of the search-and-secure software design.Experimental tests conducted within an accelerator tunnel demonstrated the effectiveness of this approach in achieving reliable recognition outcomes.

Application and Practice of Knowledge Graph in Experimental Teaching in Colleges and Universities

With the reform of experimental teaching in colleges and universities,the teaching mode of"experimental students as the main body,experimental teachers as the guide"needs to constantly explore new experimental teaching methods.In this paper,knowledge graph is integrated into the experiment of mechanical principle to guide undergraduates to use knowledge graph to analyze and summarize independently in experimental teaching activities,aiming at cultivating undergraduates interest in learning and innovative thinking,so as to improve the quality of experimental teaching.This study has a certain reference significance for experimental teaching in colleges and universities.

基于Wasim的三体船耐波性能的敏感性分析

针对三体船舶在不同海况下的动力响应影响因素进行敏感性分析,并对三体船的主侧体布局进行优化设计。采用三维时域Rankine源法分析一艘典型三体船在不同分离比和不同侧体纵向位置时的耐波性响应特性。采用水动力分析软件Wasim针对3种航速、5个浪向、2个横向位置及5个纵向位置多次进行升沉、横摇和纵摇运动响应模拟,对不规则海域内的响应振幅算子(RAO)进行敏感性分析。布局分析结果表明,在船舶的耐波性能方面,对于所有的航速、浪向和模态周期下,侧体布局并没有保持一致的最佳位置,在常规迎浪条件下,主侧体横向间距小利于耐波性能;垂荡和纵摇运动性能的优劣主要取决于主侧体的纵向相对位置。

ChatGPT著作权主体的否定性分析

人工智能的热点效应引发了我国法学界的派生讨论,目前代表人工智能最新技术的ChatGPT势头大热,ChatGPT能够代替人类撰写论文、诗歌、新闻报道等,其自主生成的内容是否属于著作权法所保护的作品就是在著作权领域中的一大新议题。不少学者提出将其纳入著作权主体的范畴进行规范保护,但ChatGPT始终没有引发技术的革新性变动,也没有构成对法律主体制度的突破与颠覆,生成的内容不属于作品,也不需要赋予其著作权主体地位。

DSA在颈动脉体瘤术前诊断中的价值

目的回顾性分析颈动脉体瘤（CBT）的数字减影血管造影（DSA）表现,探讨DSA在CBT术前诊断中的价值。方法收集并分析11例（12个）CBT患者的临床资料和DSA表现。结果 11例CBT临床均表现为颈部无痛性肿块,肿块呈椭圆形、圆形,质较硬,实性,边界清楚,无压痛,其中颈部闻及血管杂音2例;肿物可前后推动而不能上下移动。DSA显示所有患侧颈动脉分叉夹角增大,颈内外动脉移位;所有CBT肿瘤血供丰富,肿瘤染色明显,瘤体与血管的关系清晰,主要供血动脉起源于颈外动脉。DSA显示瘤体位于颈总动脉分叉内3个,9个瘤体呈偏心性生长并包绕颈内动脉或颈总动脉分叉。瘤体直径3.0~9.0 cm,平均约（4.5±1.5）cm。DSA显示右侧6例,左侧4例,双侧1例。肿瘤定性、定位以及与邻近血管的关系与外科手术、病理检查结果相符。结论大多数CBT临床表现不典型,易于误诊,但具有特殊的DSA表现。DSA能清晰显示瘤体与颈部血管关系,为外科手术或栓塞治疗提供了可靠的依据。DSA诊断CBT准确率100%。

基于AM-LFM分解的微动信号提取

该文针对微多普勒信号与目标主体回波信号分离的问题,分析了包含微动结构的雷达回波模型,指出目标主体信号分量多普勒频率是固定的,而微多普勒信号的多普勒频率是时变的,且可用分段的线性调频信号拟合。在此基础上,提出了一种基于调幅-线性调频(AM-LFM)分解的微动信号分离算法,该算法根据调频率来判定各调幅-线性调频分量的对应结构,实现微多普勒信号提取。仿真及实测数据处理结果验证了算法的有效性。

汽车覆盖件冲压CAPP系统的研究

提出了引入KBE和优化方法的汽车覆盖件冲压工艺设计CAPP系统的框架结构,建立了基于特征/知识的产品/工艺信息模型,采用基于特征和知识的智能工艺决策方法制定了覆盖件冲压成形工艺路线,并利用几何优化的方法确定冲压方向,采用关联技术和参数化的方法进行冲压件图半智能化的详细设计和信息传递,直接生成工序件图的三维模型,有利于实现与CAE系统的结合,可直接用于模具设计和制造。