Object Tracking Algorithm Based on Multi-Time-Space Perception and Instance-Specific Proposals

Aiming at the problem that a single correlation filter model is sensitive to complex scenes such as background interference and occlusion,a tracking algorithm based on multi-time-space perception and instance-specific proposals is proposed to optimize the mathematical model of the correlation filter(CF).Firstly,according to the consistency of the changes between the object frames and the filter frames,the mask matrix is introduced into the objective function of the filter,so as to extract the spatio-temporal information of the object with background awareness.Secondly,the object function of multi-feature fusion is constructed for the object location,which is optimized by the Lagrange method and solved by closed iteration.In the process of filter optimization,the constraints term of time-space perception is designed to enhance the learning ability of the CF to optimize the final track-ing results.Finally,when the tracking results fluctuate,the boundary suppres-sion factor is introduced into the instance-specific proposals to reduce the risk of model drift effectively.The accuracy and success rate of the proposed algorithm are verified by simulation analysis on two popular benchmarks,the object tracking benchmark 2015(OTB2015)and the temple color 128(TC-128).Extensive experimental results illustrate that the optimized appearance model of the proposed algorithm is effective.The distance precision rate and overlap success rate of the proposed algorithm are 0.756 and 0.656 on the OTB2015 benchmark,which are better than the results of other competing algorithms.The results of this study can solve the problem of real-time object tracking in the real traffic environment and provide a specific reference for the detection of traffic abnormalities.

基于Object Proposals并集的显著性检测模型

针对当前常见的显著性检测模型得到的结果会包含大量的背景区域的缺点,本文提出了基于Object Proposals并集的显著性检测模型。该模型首先对于输入图片生成一系列Object Proposals,并通过其并集计算得到背景图;然后结合纹理特征和全局对比度得到初始显著图;最后,用得到的背景图对初始显著图进行背景抑制得到最终显著图。实验结果表明,在通用MSRA1000数据集上,本文提出的显著性模型与其他5种方法相比取得了很好的效果。

Comparative assessment and essential analysis on new international GHG emission reduction proposals

Since Kyoto Protocol came into force on February 16, 2005, the endeavor by international society to combat the climate change has stepped into a new milestone. The greenhouse gas （GHG） abatement mechanisms in Kyoto Protocol have served a remarkable function but also been questioned during the practices of past three years about its environmental effectiveness. A lot of new international GHG emission reduction proposals are proposed from many new a.spects, some of which especially impose pressure on developing countries. So it is of great importance to research on these new proposals in time for negotiation beyond Kyoto and institution of Chinese relevant climate policies. As this paper focutses on the way of commitment distribution of mechanisms, the mechanisms here are categorized in one of two types： those distribute commitment based on countries and those based on sectors. Some of the typical mechanisms are selected to be analyzed comparatively, especially about their influence on developing countries,E-mail address： jiangdongmei@tsinghua.edu.cn

Analysis on the Influence Factors of High Quality Proposals and the Countermeasures

The People＇s Political Consultative Conference is an organization of the patriotic united front of the Chinese people, and it is an important form of develop- ing socialist democracy. As an important way to perform the functions of the People＇s Political Consultative Conference, the proposal work has been valued by the leading collective of the Communist Party of China. Based on the summary of the research results of CPPCC proposals at home and abroad, the influence factors of the quality of proposals were investigated through the analysis and summary of the overall conditions of CPPCC proposals in recent 5 years, and specific countermeasures were put forward in terms of proposal drafting, filing and summarizing, so as to improve the scientific level of proposal work in China, and give full play to the function of CPPCC proposal work.

Qualitative Comparison between the Brazilian Labeling Program for Buildings and the Portuguese Energy Certification System for Buildings:Proposals for Improving Brazilian Regulations

Buildings represent a significant share of the world’s energy consumption,and the sector has drawn the attention of governments,which have adopted policies to reduce energy expenditure.The Certifications of Energy Efficiency in Buildings stand out as one possible solution to achieve this goal,employed in several countries worldwide.The European Union presents advanced energy assessment programs for buildings,being a reference and model for several other regulations in the world.The Energy Certification System for Buildings(SCE)of Portugal is considered a success case,reflected in the significant number of energy certificates issued.The Brazilian Labeling Program for Building(PBE Edifica),first launched in 2009,does not find a broad application today in the Brazilian scenario.This work shows a synthesis of the European Energy Performance of Buildings Directive(EPBD)and the Brazilian and Portuguese regulations’history.A qualitative comparison is made between the SCE and the PBE Edifica to verify a European and a developing country’s regulations with a certain degree of cultural and climatic similarities.Through this comparison,proposals are made for improvements to Brazilian certification,seeking to improve its energy planning and energy policy concerning its building stock.The suggestions for improvement presented may also be appropriate for other developing countries that have started and have not yet successfully implemented their energy certification programs in buildings.

Presidential Proposals in Congress

This paper analyses what is likely to happen to a presidential proposal once it has been introduced in Congress. By analysing the efforts of Presidents Bill Clinton and Barack Obama to pass comprehensive healthcare reform, this paper argues that the ideological spread in the House of Representatives and the Senate, the influence wielded by interest groups, and the nuanced responses of both parties in Congress to presidential proposals are all of fundamental importance to the chances a presidential proposal has of eventually becoming law. Given the success of the Obama administration and the failure of the Clinton administration to succeed in passing fundamental healthcare reform, these two cases can provide the field of political science with a convincing account of what a presidential proposals eventual fate will be.

Some Technical Proposals on Rural Power Grid Construction and Retrofit

In consideration of high investment, large scope, longperiod and arduous tasks of rural power garid construction andretrofit, this paper analyzes the present state of China’s ruralpower grids and the difficulties on the construction and retrofit,for which some technical proposals are put forward.

Analysis and Development Proposals of Aronia mealnocarpa Planting Industry in Heilongjiang Province

Aornial mealnocarpa Elliot is a rare tree species that combined edible,medicinal,ornamental and ecological values. This article analyzes the economic value,domestic research and development status and development trend of A. mealnocarpa. Heilongjiang Province has been hurried to introduce A. mealnocarpa,lack of understanding of the characteristics of the tree species,resulting in serious cold damage and great economic losses. For these issues,proposals are put forward to promote the development of A. mealnocarpa planting industry.

TWO PROPOSALS CONCERNING ENHANCEMENT OF OCEANOGRAPHIC RESEARCH IN CHINA

Contemporary sciences are characterized by disciplinary diversity,so we cannot attend necessarily to each and every aspect of them.The development of oceanic sciences involves the exploration of marine resources,state sovereignty,national interests and the future of our motherland.Therefore,its actual significance,

PROPOSALS FOR STRENGTHENING THE MANAGEMENT AND LEGISLATION ON BIOLOGICAL RESEARCH

Ⅰ. REASONS AND BACKGROUND The development of biological science during the 20th century has been particularly spectacular.Experts predict that the position and function of biological science during the 21st century will be incomparable and supreme.Genetic engineering and cell engineering will change our life profoundly and,at the same time,the solution to the problem of natural resources and the ecology will depend on the development and advancement of biological science.

Proposed Wave Momentum Source for Generating the 22-Year Solar Cycle

For the 22-year solar cycle oscillation there is no external time dependent source. A nonlinear oscillation, the solar cycle must be generated internally, and Babcock-Leighton models apply an artificial nonlinear source term that can simulate the observations—which leaves open the question of the actual source mechanism for the solar cycle. Addressing this question, we propose to take guidance from the wave mechanism that generates the 2-year Quasi-biennial Oscillation (QBO) in the Earth atmosphere. Upward propagating gravity waves, eastward and westward, deposit momentum to generate the observed zonal wind oscillation. On the Sun, helioseismology has provided a thorough understanding of the acoustic p-waves, which propagate down into the convective envelope guided by the increasing temperature and related propagation velocity. Near the tachocline with low turbulent viscosity, the waves propagating eastward and westward can produce an axisymmetric 22-year oscillation of the zonal flow velocities that can generate the magnetic solar dynamo. Following the Earth model, waves in opposite directions can generate in the Sun wind and magnetic field oscillations in opposite directions, the proposition of a potential solar cycle mechanism.

构建粮食产业链供应链一体化体系的研究

全球经济衰退和贸易供应链中断相互叠加加剧了世界粮食安全风险,尽管我国粮食安全形势总体看好,但粮食安全仍不能忽视,需要树立新时代的粮食安全战略,构建与新发展格局相适应的粮食安全观,针对我国粮食安全的主要风险,从高效推动粮食全链发展、积极谋划粮食产业链供应链安全、加大粮食产业高质量发展力度等3个方面提出有针对性地构建粮食产业链供应链一体化体系政策建议,从而确保中国人的饭碗牢牢端在自己手中。

冲击破岩钻井提速技术研究现状与发展建议

提高钻井速度不仅是提高我国油气效益开发及深地勘探等方面的重要技术手段,同时对保障国家能源安全意义重大。冲击破岩钻井技术在国内外油田现场应用并获得了良好的提速效果,持续开展此类技术攻关有望攻克当下我国深地高温高压硬岩地层进尺低、提速难的技术痛点。介绍和分析了轴向冲击、扭力冲击和轴-扭耦合冲击辅助钻头破岩钻进技术方面的实践及发展动态。结合冲击破岩钻井技术现状,阐明了冲击辅助钻头破岩力学原理是冲击破岩钻井提速技术的关键问题,综述了国内外研究学者在冲击辅助钻头破岩物理实验、理论模型和数值模拟等研究方法上取得的科学进展。针对冲击破岩钻井提速技术的发展提出了相关建议,即加强在材料结构优化设计、智能化控制、多元技术融合和井场应用优化等方面的研究力度,为我国能源高效开发做出贡献。

从“两会”议案提案解读数字中国建设

“数字中国”是由党中央发起,全国人民共同参与,旨在加速建设社会主义现代化强国、实现中华民族伟大复兴的数字化运动。全国“两会”作为汇集民智、反映民意、影响民生的重要政治舞台,影响国家未来重点发展方向。本文基于2023年全国“两会”代表委员关于数字中国建设的议案提案,运用NVivo 11软件进行文本分析,从整体建设及重点问题与挑战两方面梳理了数字中国建设的发展现状,并在此基础上对未来数字中国建设提出相应建议与展望。

中国海洋能研究现状及未来发展建议

随着全球人口的增长、能源结构的转型和对可持续能源需求的增加,中国面临着优化其能源体系的紧迫任务。作为清洁、可再生的能源形式,海洋能成为国内外能源研究的焦点,其在中国具有巨大的开发潜力。在分析中国海洋能分布特征和发展现状的基础上,总结了中国海洋能开发的趋势,对未来的海洋能产业提出了构建面向“双碳”战略的海洋能顶层发展规划、建立健全海洋能技术的政策等建议,助力中国海洋能技术稳步发展。

上海桃产业信息现状与发展趋势

为推动上海桃产业高质量可持续发展,在分析产业布局、品种结构、经营主体概况、成本结构、采后仓储、市场动态等产业信息的基础上,阐述了上海桃全产业链生产中存在的问题,如与市场空缺期配套的高品质品种选育有待完善,省力化、智慧化配套管理技术和病虫害防治技术有待提升,产业链延伸关键技术、分等分级、贮运保鲜技术和品牌建设有待加强等。进而有针对性地提出调优品种结构,推广省力化、智慧化配套管理模式,推进产业链延伸的关键技术,以及提高经济附加值等发展建议。

中医儿科优势病种认识与发展专家探讨

中医儿科在临床工作中发挥着巨大的功效,挖掘中医儿科的优势和特色,整理、遴选、推广中医儿科优势病种对于临床工作具有重要意义。中华中医药学会组织临床优势病种系列青年沙龙,旨在探明中医诊治的优势和特色,凝练中医解决临床问题的相关科学问题,为中医的精准发展提供支撑。本专家探讨意见从中医儿科优势病种的范畴、建设意义以及建设建议三个方面进行阐述,希冀广大同行及行政管理部门重视并推动中医儿科优势病种工作进展,这将对人民健康及中医儿科的振兴与发展大有裨益。

数字孪生技术在油气钻完井工程中的应用与思考

数字孪生技术在数据实时分析、工程设计优化和设备健康诊断等方面已展现出巨大潜力,成为油气行业数字化转型发展、加速油气行业新一代技术创新的关键技术,但受钻完井工程中软硬件不完善与研究方法不明确的制约,目前尚处于起步阶段。在论述油气田钻完井工程数字孪生技术的概念和技术特点的基础上,重点介绍了数字孪生技术在钻完井工程的钻前设计、过程监控、作业培训方面的最新应用进展,提出了数字孪生技术在钻完井工程中的应用构成方案,探讨了数字孪生的关键技术方法;并分析了数字孪生技术在钻完井工程及其相关行业应用中存在的问题,提出了油气行业数字孪生技术发展建议。这可为数字孪生技术在油气行业的应用提供理论基础与方法指导,加速油气行业数字化进程,提升油气田开发效率,推动智慧油田全面构建。