Founded in 1947, ACM (Association for Computing Machinery) is the world's oldest and largest computer education and research institution.

The American Physical Society (APS), founded in 1899, aims to "advance and disseminate knowledge of physics." It boasts over 55,000 members globally.

Founded in 1880, the American Society of Mechanical Engineers (ASME) is a not-for-profit professional organization with more than 130,000 members that enables collaboration, knowledge sharing, and

CNKI is online publishing platform for achievements of CNKI project. It is Chinese knowledge information gateway website with complete resource types and comprehensive content.

The China Dissertations Database, established in 1980, has an annual increase of over 420000 articles, covering various disciplines such as basic science, science, industrial technology, humanities

The CXSTAR E - book Platform is developed by Beijing CXSTAR Information Technology Co., Ltd. This platform has in - depth cooperation with publishers.

Superstar Group, established in 1993, is the world's largest provider of Chinese digital book resources.

EBSCO is one of the earliest companies in the world to launch an online full-text database retrieval system.

Engineering Village's databases, including Compendex and Inspec, are deeply-indexed and managed by domain experts.

ScienceDirect, the full-text database platform of Elsevier, the world's leading publishing company, is the world's largest database of full-text electronic resources for science, technology and med