Subjects: Statistics >> Social Statistics submitted time 2024-05-18 Cooperative journals: 《中国科学院院刊》
Abstract： Rural revitalization is a major task in realizing the great rejuvenation of the Chinese nation. Agriculture is the foundation of rural areas, and developing smart agriculture is an important means to realize rural revitalization. The southern hilly and mountainous areas are the concentrated distribution areas of land desertification in China, with obvious disadvantages in agricultural infrastructure, large poverty areas, and deep poverty levels. They are the “hard bones” that are difficult to tackle in rural revitalization in China. In the important period of consolidating and expanding the achievements of poverty alleviation and continuously promoting rural revitalization, under the background of the vigorous development of high technologies such as the Internet of Things, artificial intelligence, and big data, the issues that urgently need to be thought about and solved include: how to realize informatization in the southern hills and mountains, how to find a reasonable path of modern agricultural and rural development, and how to drive rural peace and prosperity with agricultural development. Based on the basic status quo of population, cultivated land, and landforms in the southern hills and mountains, this study analyzes thoroughly the pain points that limit the development of agriculture in the southern hills and mountains. Focusing on the whole process of intelligent perception, intelligent communication, intelligent decision-making and intelligent operation of smart agriculture, it proposes ideas and steps for developing smart agriculture in the southern hills and mountains of China with the help of information and intelligent means. With the aim to form a set of smart agriculture development model to help rural revitalization in southern China, it will take Shuicheng County in Guizhou Province as an example to demonstrate before promoting it in an all-round way on a large scale. Finally, focusing on the shortcomings and challenges of the development of smart agriculture in the southern hills and mountains, four development suggestions are put forward.
Subjects: Statistics >> Social Statistics submitted time 2024-03-27 Cooperative journals: 《中国科学院院刊》
Abstract： Food security is a top priority in national governance. Since 1949, high-standard farmland construction, agricultural mechanization development, and agricultural technology promotion have all contributed to the grain production. To ensure grain security, China has drawn a “red line” of 1.8 billion mu (about 120 million hectares) as the official minimum of arable land. At the same time, increasing the investment of capital goods such as fertilizer and pesticides can no longer produce more food. Due to the extensive farming method in the past, the continuous increase in total grain output becomes difficult in the future. With the rapid development of advanced technologies such as informatization, intelligence, Internet of Things, big data and artificial intelligence, fine management of agricultural production can be achieved. Through the integration of digital economy and traditional agricultural industries, developing smart agriculture will provide possibilities for increasing food production. Focusing on the three stages of grain production (including pre-, during- and after-production), this study puts forward the Nine-Step Approach of smart agriculture, namely two refinements, three changes, three reductions, and one use. For each step, the connotation, the existing technical bottleneck, and the potential of future improvement are discussed. In addition, suggestions for further development of smart agriculture are made from four perspectives, namely, data collection, data standardization, data applications, and data security.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Information technology is deeply penetrating into all walks of life. Through the acquisition of massive data, modeling and analysis in the information space, it has become an effective means to solve practical problems in the information society. At present, China is vigorously implementing black soil conservation projects. Aiming at the complex system protection engineering,it is necessary to rely on the strength of information technology to carry out problem modeling and algorithm solving in the process of black soil utilization and protection, and find the best protection way through simulation and emulation. Based on the analysis of the black land protection measures worldwide, the study puts forward the design idea of agricultural simulator based on the fifth paradigm from the perspective of intelligent technology, gives the organizational structure of the total factor agricultural simulator, and realizes the rapid operation and iteration of data flow through the intelligent OODA (observe, orient, decide, act) loop to continuously optimize the black soil protection technology. Finally, the study proposes the idea and framework of building agricultural simulator in the black land protection demonstration area, as well as the policy suggestions for the application and promotion of agricultural simulator in the process of black land protection.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Agricultural mechanization and intelligent agricultural machinery equipment are important basis for improving agricultural production efficiency and rural productivity, and changing the mode of agricultural development. In the past 70 years, China’s agricultural machinery industry has made remarkable achievements. It has become the largest agricultural machinery country in the world, though the backwardness before liberation. Nevertheless, there is still a huge technical gap between China and established powers in the field of agricultural machinery. “Big but not strong” has become the main feature at this stage. To realize the breakthrough “from big to strong” in agricultural machinery industry, the fundamental path is to establish an agricultural machinery innovation system suitable for China’s agricultural production operation mode. This study takes tractor as a typical representative of agricultural machinery industry, and reviews the development process of agricultural machinery industry system in China. Then we divide the agricultural machinery industry system of new China into different generations according to the technological development and the reform of land system. The aim and content of the new generation (third generation) agricultural machinery innovation system are described emphatically. We also discuss the application of new technology innovation system in the Yellow River Delta, and introduce how to build the application system of the third-generation agricultural machinery. Finally, some suggestions are given for the construction of the independent and controllable third generation agricultural machinery innovation system of China.
Subjects: Computer Science >> Computer Network submitted time 2017-03-10
Abstract：依然基于停等模式。对于大规模系统，停等模式在很大程度上会影响程序的并行效率。本文提出了一种非 停等的算法级容错策略——热替换策略。在程序运行过程中若发生节点失效，不用停等恢复失效节点上的 数据，而用冗余节点替换失效节点，使计算能继续进行。终的正确结果可以通过一个线性变换求出。为 了论证方案的有效性，我们结合 MPICH 的容错特性实现了容错的 High Performance Linpack (HPL)，并评估 了方案的性能。实验结果表明，即使在小规模下，我们的方案的性能也明显优于算法失效恢复技术。
Peer Review Status:
Awaiting Review
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