为贯彻落实国家科技强国发展战略、国家创新驱动发展战略，研判信息技术领域未来技术发展趋势，推进信息科技领域发展，中国科协信息科技学会联合体自2018年开始，通过各联合体成员学会面向广大科技工作者征集“信息技术领域前沿热点问题”。通过成员学会推荐及专家评审，评选出2019年信息技术领域十大前沿热点问题：自然语言理解、规模量子计算机的软件基础研究、自动驾驶车控操作系统关键技术研究及市场化应用、非正交轴系三维激光测量仪器、基于头显式增强现实系统的应用技术、完美密码学随机数的产生、复杂电磁环境卫星抗干扰新技术、全天候实时高分辨成像与识别、人工智能与生物智能的融合问题：人工生物智能的研究和应用、干涉光学成像技术。以下对其具体内容作一简略解读。

Since the founding of the People's Republic of China, there have been great changes in agriculture in Heilongjiang Province after 70 years' efforts. Leap development which attracts worldwide attention has been achieved over the past few decades. At present, the total grain output in Heilongjiang Province ranks first in the country as well as the Degree of integrated mechanization, and the Gross livestock production value ranks fifth in the country. The past 70 years' Brilliant achievements gained in Heilongjiang's agriculture under the support and guidance of agricultural science and technology are briefly reviewed in this paper.

The cultivated land and the ecological land are important factors to maintain the ecological security and the sustainable development. Identifying their dynamic evolution and the transformation relationship will provide a decision-making basis for the ecological environment protection. With Jilin, Liaoning and Heilongjiang provinces in Northeast China as the empirical areas, this paper quantifies the change matrix between the cultivated land and the other types of land based on the Landsat remote sensing images of 1990, 1995, 2000, 2005, 2010 and 2015 as the data sources. The results show that:in northeast China, the conversion of the ecological land into the cultivated land is 3.11 times of that of the cultivated land into the ecological land, where the forest land and the grassland are more active than the waters among the ecological land; the change of the cultivated land area reduces the ecological land step by step in Heilongjiang Province and Jilin Province, so it is desirable to emphasize the rational development of the unused land; the construction land has expanded rapidly through occupying the cultivated land, therefore the flow of the cultivated land to the ecological land is hampered; The flow pattern of ecological land to cultivated land and cultivated land to construction land made land resources face great pressure in Northeast China; Reducing grassland reclamation and controlling the disordered expansion of construction land were the vital methods to protect land resources; Moreover, preventing opening up wasteland and deforestation were also important to facilitate better coordinated development between economy and environment.

The most important characteristics of the bionic materials are the ability to be desined. The structure and the function of the biological materials in nature can be obtained by artificial intelligent materials by means of bionics. This paper summarizes the application of the bionic new materials in the fields of information communication, building industry, biological medicine, energy conservation and emission reduction, and analyzes the application direction of the bionic materials in the future, as well assome prospective development of the bionic materials.

The tributyl citrate is a non-toxic, green and environmentally friendly plasticizer, one of the new generation plasticizers to replace the widely used toxic plasticizers, and has become a research hotspot. The main properties of the tributyl citrate are listed in detail, and the main synthesis methods of the tributyl citrate are reviewed. The solid acid catalysts for the synthesis of the tributyl citrate are classified and their applications in the esterification are summarized. It is concluded that the organic solid acid catalyst is a suitable catalyst for the preparation of the tributyl citrate.

The modern sea battlefield environment is complex and the detection objects and the combat forms are diverse. At the same time, the multi-platform equipment has network features, with new requirements and challenges, as compared with that in the traditional naval battle model. With the rapid development of the artificial intelligence technology, the intelligent warfare is beginning to emerge. This paper introduces the concept and the connotation of the intelligent warfare with the application of the artificial intelligence in future naval battles, and analyzes the basic style of the artificial intelligence being integrated into the combat. The future characteristics and laws of the intelligent naval warfare pattern are introduced and the bottlenecks and the challenges faced by the intelligent naval warfare are systematically summarized. Finally, some measures and suggestions for adapting to the future intelligent naval warfare are discussed.

In view of the five cores of the industrial enterprise operation, the people, the equipment, the materials, the process, and the environment, a total solution for the safety production is given in this paper, with the industrial operating system as the platform, the 5thgeneration (5G), narrow band internet of things (NB-IoT) and cloud computing as tools, to solve the problems of the personnel safety, the equipment safety, the materials safety, the process safety and the environmental safety. It can meet the security requirements of enterprises, and guarantee the safety production of intelligent plants.