为解决垃圾分类困难问题,根据大量垃圾图片的特点,提出了基于yolov4的垃圾检测的方法,实现垃圾的自动识别分类和定位.该方法通过手机拍摄以及百度等收集不同种类的垃圾图像集,运用图像增强的方式进行图像预处理,再利用迁移学习模型和k-means++聚类算法进行垃圾网络分类模型的训练测试,最后将训练好的模型通过摄像头对采集的垃圾图片实时识别分类和定位.实验表明:该方法的mAP达到95.15％,能够快速有效地对垃圾分类和定位.

近年来创新创业教育已经成为我国高等教育改革研究的热点.本文以东北石油大学为例,从人才培养方案改革、创新创业课程体系完善、实践平台建设和实践活动开展等方面,研究了提升大学生创新创业能力培养的途径.

基于Unity3D研制了一种由地面控制终端、机器人本体和三维仿真系统3部分组成的水下机器人半实物仿真系统,为水下机器人开发过程中的性能测试、控制算法分析和人员操作培训提供了仿真和测试平台.该系统采用同一地面控制终端作为三维仿真系统和机器人控制系统的统一指令输入源,以实现虚拟对象和机器人本体的同步工作,可对系统进行实时监测、调参.采用多目视觉技术对机器人位置采集,对传带感器数据进行卡尔曼滤波处理.机器人运动仿真试验结果表明,机器人实际运动路径和仿真规划路径基本相同,该系统动态响应性和控制系统同步性较好.

The thruster is the power unit of the underwater robot, and the propeller is an important part of the underwater thruster. In order to design a set of high-performance propellers, the theoretical design of the magnetically coupled propellers was first conducted based on the graph method. The structural parameters of the propellers were initially determined, and the preliminary design of the propellers was completed. The simulation calculation and analysis on the propeller were conducted using Fluent based on hydromechanics. The analysis results show that the selection of the pitch ratio is influenced by the advance coefficients and the propeller thrust coefficient. Under the premise of ensuring that the propeller thrust coefficient meets the requirements, lower advance coefficients leads to a smaller pitch ratio. Disk ratio has no effects on the thrust on the blade surface, resulting in very close of propeller efficiencies. Under high advance coefficients, the thrust provided by the unit blade surface is equal. The propeller with a larger disk ratio can absorb more main engine power and be more efficient. Smaller gap between the outer edge of the propeller and the inner diameter of the guide pipe leads to larger propeller coefficient, and the guide pipe propeller’s efficiency will be the highest. The guide pipe propeller thrust coefficient fluctuates slightly under certain advance coefficients with the change of the shrinkage coefficient. The shrinkage factor should not be too large. If the load is large, a smaller expansion coefficient is preferred. If the load is small, a larger expansion coefficient is better. The study results could provide references for the further optimization design of the underwater robot propeller.

To address the problem of poor operation capability of heading flow and difficult motion control of mini-type ROVs in shallow water environment at offshore platform, the mini-type Elf ROV was researched and developed for shallow-water based on Arduino. The control system architecture was designed taking Arduino mega 2560 as the core controller. The small-volume high-thrust propellers were used to improve the ROV operation capability of heading flow. Taking Arduino as the core, the upper layer instruction system and the bottom layer motion system were set up, and the upper and lower system communication was established through serial communication. The mechanical structure of ROV for shallow water was designed, and the dynamic model of the Elf ROV was established. The PID was used to perform the heading motion control. The system simulation was also performed. The system joint debugging and pool test results showed the design of the shallow water ROV control system with the Arduino as the core is feasible. The actual effect of thrust vector composition was also verified. The development of this ROV could provide references for the development of other tiny portable robots, especially mini-type ROVs.

随着中国教育水平的不断提升,需要进一步改革教育模式.翻转课堂的教学模式对于我国现在的教育改革热潮能够提供一定的参考价值.根据在计算机教学的课程实践当中,开始逐渐结合翻转课堂的教学模式,并且取得了一定的效果.本文对于翻转课堂教学模式的概念进行阐述,并且结合课堂教育流程分析如何在计算机教学过程中实施翻转课堂的教学模式,最后对于翻转课堂教学模式在计算机教学中的实施成效进行阐释,希望能够对计算机教学从业者提供一定参考价值.

文章介绍了高校建立课程组管理模式的主要内容，并利用一定的激励措施提高教师的积极性，从而提高课程的授课质量和学生的培养质量。

Web service is an emerging distributed computation mode and provides Internet-based software service unrelated to development environment. Such service-oriented calculation mode follows certain architecture, adapts Web environment openness and lays technological base for Web information and application procedure integration. But, existing Web service lacks obvious semantics. Web services cannot well understand information mutually conveyed, hinder service communication and interaction and cannot fulfill automatic service combination. From the perspective of service discovery, keyword-based grammar service discovery cannot ensure accuracy, lack semantic information support and cannot achieve secondary selection from given service candidate set. The key cause of the above problems is that there is lack of sharable semantic platform oriented to Web service. Thus, sharable semantic interpretation of Web service interface and execution process cannot be fulfilled. The setup of semantic platform contributes to improving service discovery quality and laying a foundation for automatic service combination. In allusion to these practical application demands, research status and existing problems, this paper mainly focuses on Web service semantic platform setup to propose Multi-technologies Supported Service-Oriented Architecture (MTSSOA). This architecture regards ontology as the core and take Web service process attribute description and Semantic coordination as assistive technology.

高校在国家知识创新系统中发挥至关重要的作用,是推动科技成果转化为现实生产力的重要力量。黑龙江省要实现"十二五"的经济目标,提升高校知识创新能力是其中一个重要环节。本文构建的黑龙江省高校知识创新能力的指标体系,主要包括高校知识创新投入指标和高校知识创新产出指标2个一级指标和R&D人员总数、R&D经费投入、研发中心总数等11个二级指标,指标体系的构建为科学合理地评价黑龙江省高校的知识创新能力提供依据和方向。

本文结合财务竞争力的构成要素设计了上市银行财务竞争力评价指标体系,运用因子分析法,对选取的16家A股上市银行的财务竞争力进行了实证分析,并基于分析得出研究结论.

本文对课程组建设的目的和内涵,成员结构,教材优化,教学方法和激励评价制度的建立等问题进行了一些分析,探讨和总结,认为课程组是对传统教学团队的有力补充,对全面提升高校的教学质量,提高教师的教学能力起到了一些积极的作用.

翻转课堂是一种全新的教学模式，它把传统的教学过程完全颠倒，学生在课前通过教学视频来完成课程学习，课堂中进行作业、测试及其它教学活动来进行知识的内化。实践证明，这种教学模式取得了良好的教学效果。

本文分析了应用型本科人才的特点,探索了构建以能力培养为重心的应用型本科人才培养的培养模式,提出了办学特色是应用型本科教育发展的生命线,对于深化应用型本科院校的教学改革,培养高素质的应用型本科人才具有重要的意义.

课表编排是一项涉及因素非常多而且十分复杂的工作,如何编制出科学、合理、高效的课表,一直深深困扰着教务管理人员.经过多年的研究与实践,设计出一套非常有效的交叉排课方案,并在实际应用中取得了良好的效果.

Network course construction is a useful supplement to traditional classroom teaching. It can foster students’ ability to learn, and is conducive to the quality of education in our country. This article focuses on the need to pay attention to the problem of awareness and networking courses to open college network course construction and management, and describes the network course construction achievements of the Northeast Petroleum University.

At present,the logical model and physical model in most enterprises are still in a primitive manual management phase.Even if parts of enterprises adopt electronic management,which are only limited to logical model,they rarely take logical model changes into account with physical model changes.Through collating various logical model changes situations,a set of rules and algorithms are made and defined.The definition of the rules will not only facilitate the management of enterprise data,but also ensure data consistency in the logical and physical model.Meanwhile the data management of enterprises becomes convenient.At last the rules constructed are applied to oilfield enterprises data management,and achieved very good application effect.

分析了当前高校教材供应模式的种类和利弊，通过东北石油大学教材供应模式的改革与实践，探索出一种适合地方院校的教材供应模式，产生了良好的效果。

近年来,我国高校教材建设取得了很大的成就,但也存在内容陈旧、低水平重复等问题.针对这些问题,本文提出了加强教材建设与管理的思路,提出一些措施和方法.

After thorough exploration of the replica management component in globus toolkit4,a replica location prototype based on hiberarchy full-index is designed.A system framework,replica location principle,soft-state update and replica location algorithm are proposed,and the replica location prototype is implemented.By means of deployment and running the prototype system,the algorithm is verified.The result shows that this prototype system is able to achieve replica location and create replicas safely and efficiently.

研究GridFTP的协议功能及特点,详细分析第三方传输、并行传输和条状传输的传输机制及性能。并阐述如何通过在GT4环境下成功部署GridFTP服务,利用GridFTP客户端API开发包,创建一个GridFTP客户端应用程序,实现以上三种传输方式的方法。