May 26, 2020

Researchers at Indiana University in the United States have developed a virus-like biomaterial that catalyzes the formation of hydrogen for the production of biofuels. Biomaterials or "nano-reactors", Indiana University scientists describe it as placing the modified e

May 25, 2020

In the current security environment, video surveillance has become an important means of security. From large-scale exhibitions to leaders' gatherings, to small-scale bank monitoring and warehouse security, we can all see the shadow of surveillance cameras. The deteriorating security environmen

May 23, 2020

There are two important features: the effective thread and the thread finish (also known as thread tail). Precise modeling of the thread, the usual practice is to simulate turning machining for spiral material removal. Taking the modeling of ordinary thread as an example, the basic tooth shape is ge

May 23, 2020

There are two important features: the effective thread and the thread finish (also known as thread tail). Precise modeling of the thread, the usual practice is to simulate turning machining for spiral material removal. Taking the modeling of ordinary thread as an example, the basic tooth shape is ge

May 22, 2020

Abstract [Before] The 8th Vietnam International Machine Tool & Metalworking Machinery Exhibition (METALEXVIETNAM2015) was held on October 8-11, 2015 at Saigon Exhibition and Convention Center in Ho Chi Minh City, Vietnam. Take the China Machine Tool Industry Association Mao Yufeng... [Be

May 22, 2020

This paper briefly describes the composition principle of the electrical fire monitoring system, and analyzes the design basis and related specifications of the electrical fire monitoring system in the application. Finally, through the introduction of Ankerui residual current electric fire monitor

May 21, 2020

Rakesh Agrawal and Emre Gener of the School of Chemical Engineering at Purdue University in the United States have proposed a concept of “negative hydrogen,” a concept that creatively combines the processes of power generation and hydrogen product