An ultra-high strength and low-cost magnesium wrought alloy, Mg-1Al-1Ca-0.3Zn-0.4Mn (wt. %), has been fabricated by conventional extrusion, with yield strength of ~ 435 MPa, the ultimate tensile strength of ~ 449 MPa and the elongation of ~ 4.2%. Dispersive nano-precipitations, e.g., the Al2Ca phase and AlMn phase, have been induced during extrusion, which can effectively pin ...

This experiment uses Gillian baby, chocolate brick, Otome heart, Kuma boy, and Dongmeiren as materials to compare the effects of different substrates on the growth of succulents, in order to screen out the suitable ratios for the growth of succulents. The results showed that the succulent plants in substrates B and C are robust, with warm color, less pests and diseases, and high ...

Intelligent manufacturing refers to the comprehensive modern social market economy development trend, and the use of intelligent technology to replace the traditional manual technology can achieve full automation and full network production process. With the rapid development of intelligent manufacturing and the transformation of production methods, the requirements for motors ...

Data show that in 2020, the number of motor vehicles in China reached 372 million, including 281 million cars. The number of motor vehicle drivers reached 456 million, of which 418 million were automobile drivers. In 2020, 33.28 million newly registered motor vehicles and 22.31 million newly licensed drivers were registered nationwide. In 2020, the annual auto sales reached 25.311 ...

In the 21st century, in order to realize the concept of carbon neutrality in the construction industry, the research and development of new forms of construction engineering materials is imperative. This article briefly introduces the properties of renewable concrete additives and their recycling methods.

In the process of urban renewal, the development of underground space is faced with many scientific problems, including complex geological structure, underground abandoned buildings formed by historical construction, interaction mechanism between deep space excavation and surrounding environment, and stratum structure collaborative bearing mechanism of urban deep underground ...

This paper mainly introduces the design and implementation of self planning postgraduate entrance examination website which combines ai artificial intelligence technology with web application form. On the student side, it can not only query information, but also have forum, open class, live broadcast module and other functions. In addition, the recommendation system is added to ...

Aiming at the problems of low detection accuracy and slow detection speed in traditional human polyp detection, this paper proposes a colorectal polyp detection method based on improved yolov4 algorithm. Firstly, the colorectal polyp data set is constructed. In order to automatically detect the polyp position in CT and increase the accuracy, deep learning is needed to make the ...

This paper introduces the design of intelligent Therapy Bracelet system based on Internet of things technology. The smart Therapy Bracelet system mainly realizes the functions of blood pressure detection, blood pressure value viewing, historical blood pressure value viewing, peripheral services, personal information, account setting, etc. Firstly, the research background and ...

This paper introduces the design of intelligent monitoring car based on Internet of things technology. The intelligent monitoring car mainly realizes the monitoring of classroom students' cheating in exams and other functions. Firstly, the research background and demand analysis of the intelligent monitoring car are analyzed, and then the functional modules of the system are ...