Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：【目的】随着互联网技术的快速发展，各种新型社交平台层出不穷，信息传播方式不断更新，传统媒体的发展面临严峻的市场挑战。为了更好地拓展杂志传播范围、集聚杂志优势资源，文章对如何提升杂志的传播力、影响力做了研究。【方法】文章以《项目管理技术》杂志为例，结合杂志特点和办刊理念，通过分析精准定位、品牌营销等具体措施和方法。【结果】打造具有项目管理特色的私域流量群，可以提升杂志传播力和品牌形象。【结论】经过实践检验，该方法具有一定的科学性和实操性，可为其他领域私域流量群的建立提供参考。
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：随着网络、手机媒体、数字媒体等新媒体手段的不断涌现,传统的广告营销模式面临严峻考验。本文结合杂志广告营销的特点,以某杂志为例,分析杂志广告营销投放模式及存在的问题,探讨新媒体环境下杂志的广告营销定位,提出新形势下杂志广告营销的新方法和手段,以期为从事杂志市场营销和管理工作的人士提供一定的借鉴。
Subjects: Geosciences >> Other Disciplines of Geosciences submitted time 2023-08-23 Cooperative journals: 《中国科学院院刊》
Abstract： The public’s psychological reactions to climate change, including cognition, attitude, emotions, and affects, are important psychological antecedents to their participation in the mitigation of and adaptation to climate change crisis. As a result, tracking, monitoring, and learning about these individuals’ psychological reactions to climate change would lay the foundation for climate change education, mass media communication, and successful implementation of climate policies. The current study systematically summarizes the multi-dimensional factors influencing individuals’ psychological reactions to climate change, and proposes suggestions for the development of psychological research on climate change and for climate actions. Hopefully, this study would raise the awareness of psychologists, climate scientists, and the governments on the application of public psychological reactions and the discipline of psychology to climate practices, facilitating the construction of a climate-resilient society where everybody contributes.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] Under the background of government function transformation, the cooperation of government with social organizations in providing public libraries service is an effective measure for the reform of the public library management system. It is also an important development trend of public libraries. The study of the relationship between the government and the social organization can not only enrich the relevant theoretical results, but also provide a reference for the development of the collaboration between government and social organizations in public libraries service supply. [Method/process] Through the literature research, network survey and field research, this paper discusses the concept and characteristic of the collaboration relationship between government and social organizations in public libraries service supply, and deeply analyzes the role of different subjects, the causes, the types and the formation process of the collaboration relationship between government and social organizations in public libraries service supply. On this basis, it puts forward the countermeasures for sustainable development of the collaboration relationship between government and social organizations in public libraries service supply. [Result/conclusion] The establishment of good collaboration relationship needs to correct the collaborative motivations, improve the collaborative systems and standardize the collaborative behaviors.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] The value of user participation in knowledge service has attracted more and more attention in academic circles. The analysis of the case of user wisdom integrated in digital knowledge space can provide new ideas and methods for the innovation of library knowledge service.[Method/process] From the perspective of value co-creation, this paper analyzed the role orientation of users, the stage strategy of the user wisdom integration and the guarantee mechanism of the user wisdom integrated in Yunzhou knowledge space. Then this paper summarized the mode and its advantages.[Result/conclusion] The enlightenment of user wisdom integrated in Yunzhou knowledge space to library knowledge service innovation has three aspects:attaching importance to the value of user wisdom integration, supply-side and demand-side joint efforts; finding out the value orientation of users and implementing different incentive measures; caring about the value experience of users and establishing a diverse interaction mechanism.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/Significance] Integrating the wisdom of users to make up for the limitation of librarians’ knowledge is an important trend in the transformation and development of the subject service in university libraries in the new era. The evaluation of user participation quality is helpful to provide theoretical references for libraries to better integrate user wisdom. [Method/Process] Using a combination of qualitative and quantitative methods, this paper constructed a conceptual model from three main dimensions of "psychological approach", "action support" and "result performance" to screen and optimize the evaluation items. Through exploratory analysis and confirmatory analysis, it was determined that the introduction and evaluation model of user participating in subject services with high quality in university libraries. [Result/Conclusion] The evaluation model of library subject services can be presented a multi-level and multi-dimensional comprehensive model with three main dimensions and eight sub dimensions.
Subjects: Agriculture, Forestry,Livestock & Aquatic Products Science >> Other Disciplines of Agriculture, Forestry,Livestock & Aquatic Products Science submitted time 2023-02-17 Cooperative journals: 《智慧农业（中英文）》
Abstract： To further improve the simulation and estimation accuracy of the supply and demand process of agricultural products, a large number of agricultural data at the national and provincial levels since 1980 were used as the basic research sample, including production, planted area, food consumption, industrial consumption, feed consumption, seed consumption, import, export, price, GDP, population, urban population, rural population, weather and so on, by fully considering the impact factors of agricultural products such as varieties, time, income and economic development, a multi-agricultural products supply and demand forecasting model based on long short-term memory neural network (LSTM) was constructed in this study. The general thought of supply and demand forecasting model is packaging deep neural network training model as an I/O-opening modular model, reserving control interface for input of outside data, and realizing the indicators forecasting of supply and demand and matrixing of balance sheet. The input of model included forecasting balance sheet data of agricultural products, annual price data, general economic data, and international currency data since 2000. The output of model was balance sheet data of next decade since forecasting time. Under the premise of fully considering the mechanical constraints, the model used the advantages of deep learning algorithms in nonlinear model analysis and prediction to analyze and predict supply and demand of 9 main types of agricultural products, including rice, wheat, corn, soybean, pork, poultry, beef, mutton, and aquatic products. The production forecast results of 2019－2021 based on this model were compared and verified with the data published by the National Bureau of Statistics, and the mean absolute percentage error was 3.02%, which meant the average forecast accuracy rate of 2019－2021 was 96.98%. The average forecast accuracy rate was 96.10% in 2019, 98.26% in 2020, and 96.58% in 2021, which shows that with the increase of sample size, the prediction effect of intelligent learning model would gradually get better. The forecasting results indicate that the multi-agricultural supply and demand prediction model based on LSTM constructed in this study can effectively reflect the impact of changes in hidden indicators on the prediction results, avoiding the uncontrollable error introduced by manual experience intervention. The model can provide data production and technical support such as market warning, policy evaluation, resource management and public opinion analysis for agricultural production and management and macroeconomic regulation, and can provide intelligent technical support for multi-regional and inter-temporal agricultural outlook work by monitoring agricultural operation data in a timely manner.
Subjects: Agriculture, Forestry,Livestock & Aquatic Products Science >> Other Disciplines of Agriculture, Forestry,Livestock & Aquatic Products Science submitted time 2023-02-17 Cooperative journals: 《智慧农业（中英文）》
Abstract： Crop 3-dimensional (3D) reconstruction is one of the most fundamental techniques in crop phenomics, and is an important tool to accurately describe the holographic structure of crop morphology. 3D reconstruction models of crops are important for high-throughput crop phenotype acquisition, crop plant characteristics evaluation, and plant structure and phenotype correlation analysis. In order to promote and popularize the 3D reconstruction technology in crop phenotype research, the basic methods and application characteristics, the current advances of research and the prospects of 3D reconstruction in crops were review in this paper. Firstly, the existing methods of crop 3D reconstruction were summarized, the basic principles of each method were reviewed, the characteristics, advantages and disadvantages of each method were analyzed, the applicability of each method on the basis of the general process of crop 3D reconstruction methods were introduced, and the specific process and considerations for the implementation of each method were summarized. Secondly, the application of crop 3D reconstruction were divided into three parts: single crop reconstruction, field group reconstruction and root system, according to different target objects, and the applications of crop 3D reconstruction technology from these three perspectives were reviewed, the research advances of each method for different crop 3D reconstruction based on accuracy, speed and cost were explored, and the problems and challenges of crop 3D reconstruction in the context of different reconstruction objects were organized. Finally, the prospects of crop 3D reconstruction technology were analyzed.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2022-05-10 Cooperative journals: 《计算机应用研究》
Abstract： Constrained multi-objective evolutionary algorithms (CMOEAs) can deal with multiple conflicting objective functions and constraints simultaneously and guide the population towards the optimal solution in the feasible domain, which has received extensive attention from researchers. This paper firstly introduces the relevant definitions of constrained multi-objective optimization problems (CMOPs) and three classifications of multi-objective evolutionary algorithms (MOEAs) ; secondly, it systematically analyzes the current constraint processing mechanisms in CMOEAs, and condenses the current four main constraint processing methods; Then, the research progress of CMOEAs is reviewed in detail from three aspects: dominance-based, index-based, and decomposition-based; finally, the challenges and future research directions of CMOEAs are pointed out.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2020-09-28 Cooperative journals: 《计算机应用研究》
Abstract： This paper studied a new event-triggered consensus protocol for MASs based on switching topology. Two events are designed in this protocol, including convergence events caused by agent state evolution and topology events caused by topology change. Stability analysis of public Lyapunov function related to events and consensus proof of MASs are given. A network connectivity algorithm based on constraint set is also designed to enhance network connectivity. The simulation results show that the designed event-triggered consensus protocol can make the state evolution of agents tend to be consistent and effectively reduce the update frequency of the controller of agents in the switching topology network environment, reduce the energy consumption of MASs, improve the connectivity effect of the network effectively, and provide theoretical support for the subsequent research of event-triggered control.
Subjects: Biology >> Zoology submitted time 2018-12-20 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在对1只死亡野生川金丝猴的胃肠道菌群多样性及其克隆测序条带的系统进化树进行分析。取死亡野生川金丝猴胃肠道内容物，进行聚合酶链式反应（PCR）-变性梯度凝胶电泳（DGGE）分析，结合条带的克隆测序、聚类分析和主成分（PCA）分析检测菌群多样性并构建系统进化树。结果显示：1）野生川金丝猴整个胃肠道栖息着大量细菌，且来自胃、小肠的样品聚为一大簇，来自大肠的样品聚为一簇，而来自粪便的样品单独聚为一簇。2）从DGGE图谱上共回收18个条带，细菌种类鉴定主要是5个菌门，分别为变形菌门（Proteobacteria，38.89%）、厚壁菌门（Firmicutes，22.22%）、拟杆菌门（Bacteroidetes，5.56%）、放线菌门（Actinobacteria，5.56%）、疣微菌门（Verrucomicrobia，5.56%）和不可培养菌（uncultured bacterium，22.22%）。其中，变形菌门和厚壁菌门分布于整个胃肠道。3）菌群的系统进化树分析表明，仅有1种不可培养菌与已鉴定的粪肠球菌进化分类相似，而其他不可培养菌与已知的菌种进化分支差异较大，说明在野生川金丝猴的胃肠道中仍有大量的菌群信息未被鉴定。结果提示，本试验测定的1只死亡野生川金丝猴的胃肠道优势菌群为变形菌门，菌群多样性随着胃肠道由前至后的顺序呈现高-低-高的趋势。
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-20 Cooperative journals: 《计算机应用研究》
Abstract： With the rapid development of intelligent mobile terminal, smart wearable devices and the pedestrian navigation system based on inertial sensors, and for the demand of step counting in these devices and systems, a large number of researches on step detection algorithm with MEMS-based acceleration sensor have been carried out and achieved good results. For the existing technology in the field, the development of this field is firstly introduced, and the main research points, methods and applications of the field are pointed out. Then, the current research status in this field is reviewed, and the data pre-preprocessing methods and the validation methods of steps in different step detection algorithms are described and analyzed. And then, the main research points are discussed in detail, and the methods related to the main research points are summarized. Finally, for providing reference for follow-up researches, the possible developments of this field is discussed and prospected.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-02 Cooperative journals: 《计算机应用研究》
Abstract： Multi-agent system has always been the main research subject in many disciplines. The multi-agent collaborative control theory based on switch topology is an important part of multi-agent system research and has been a hot spot in recent years. In order to promote cooperative control theory of multi-agent based on switched topology, based on the extensive investigation of the existing literature and the latest achievements, this paper discusses the development of this field from three aspects: the consistency problem, the distributed optimization problem and the distributed estimation problem The status quo is summarized; such as the design of the agreement, the performance analysis of the agreement and its advantages and disadvantages, the realization of distributed optimization and the practical application of distributed estimation. Finally, it points out the outstanding issues in the field and the future research directions.
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-02 Cooperative journals: 《计算机应用研究》
Abstract： Nowadays, with the rapid development of Internet of Things and big data, micro-embedded systems have been widely used in takeaway and sharing industries such as shared bikes, transportation, express delivery and smart home. Existing fault diagnosis research mainly focuses on traditional embedded systems. Therefore, relatively few fault diagnosis documents for micro-embedded systems. To solve the above problems and combine the characteristics of the system (limited computing capacity and storage space) , this paper proposes a class of fault diagnosis method classification methods suitable for miniature embedded systems, divided into two categories, namely local fault diagnosis methods and remote Fault diagnosis method. Then this paper describes the core idea of the fault diagnosis method for micro-embedded systems, summarizes the advantages and disadvantages of each method used in micro-embedded systems, and the problems that should be noted. Finally, this paper discusses the problems that need to be solved in the fault diagnosis of miniature embedded systems.
Subjects: Library Science，Information Science >> Information Science submitted time 2017-11-08 Cooperative journals: 《数据分析与知识发现》
Abstract：【目的】通过对以互联网为媒介的新闻报道的主题演化研究, 分析新闻主题的产生、发展和演变过程, 把握媒体舆论方向。【方法】引入流形学习构建全局时间跨度的新闻主题关联关系, 挖掘由LDA 主题模型识别得到的各个时间窗口的高维主题向量间的关系, 在低维平面上实现主题聚类和相互关联的可视化, 提出利用社会网络理论指标分析主题的演化结果。【结果】利用2015 年美国有线电视新闻网对中国的新闻报道进行主题关系构建和演化, 结果表明该方法能够发现主题在全局时间跨度的演化趋势。【局限】时间窗口长度对主题演化的效果和可变时间窗口长度机制没有涉及。【结论】新闻主题演化分析方法能够在低维可视平面上描绘主题在全局时间跨度的演化, 避免主题由于相邻时间窗口关联失效而导致全局演化路径的断裂。
Subjects: Biology >> Zoology submitted time 2017-10-23 Cooperative journals: 《动物营养学报》
Abstract：消化道表面黏液层中含有大量黏蛋白，这些黏蛋白分子侧链往往被糖基化修饰，这些糖基在肠道菌的黏附、定植及免疫调节过程中发挥重要作用，岩藻糖是肠道黏蛋白分子侧链中的一种重要糖基。本文总结了岩藻糖作为肠道菌黏附靶位点和信号调节分子，以及调节肠道功能等方面的作用。
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