Recent Posts

[Technical Knowledge] Iris Recognition Security Problem

The demand for safe and credible identification and authentication has rapidly increased, but the emphasis on the security of biometric images and feature templates is far from enough. Biometrics, including iris features, have a life-time constant character, which indicates that once lost, it mean ......

Demand for LED filament lamps in the United States will soar…

According to sources, because they look like traditional incandescent bulbs, the demand for LED filament lamps in Europe and the United States is expanding, mainly for decorative lighting in churches, restaurants, retail stores and hotels; in addition, the EU plans to 2018 The complete elimination o ......

MXene-based integrated electrodes for lithium-sulfur battery…

Recently, researchers from the 2D Materials and Energy Devices Research Group (DNL21T3) of Dalian Institute of Chemical Physics, Wu Zhongshuai, researcher of advanced secondary battery (DNL0306) Chen Jian and researcher Wang Xiaohui of the Institute of Metal Research, Chinese Academy of Sciences, ......

Sudden failure of brakes can save lives at critical times

When it comes to traffic safety, the brake safety that comes to mind at the first time. In the southwestern region, there has been an ancient saying that it is difficult for hard roads to be on the blue sky. For the long-term truck drivers who run logistics ......

Liangshan semi-trailer vacuum tire advantages and how to use…

The current journey of Liang Qianli begins with a single step. Trailer tires are like the shoes we wear. Choosing the right tire is like putting on a comfortable shoe. Tire affects the comfort, safety and fuel consumption of the trailer, and its importance is self-evident. The choice of tyres shou ......

Hot work safety management system

1 General 1.1 Purpose In order to standardize the fire safety management of ********* Group Co., Ltd. (hereinafter referred to as the group company), implement the fire safety measures and prevent accidents, this system is specially formulated. 1.2 Scope This system is applicable to the fire saf ......

a sign of a common roof accident

a sign of a common roof accident 1. Sounds: The roof subsides, the mine pressure increases sharply, and the mining face supports deformation, fracture, and bending, accompanied by sounds. Before the old roof is pressed, the roof crack will also emit firecrackers or thunder. 2. Drossing: When the t ......

Red, yellow, and green LD trolley wire functions and paramet…

The LED-3 slip line indicator is a signal indicator for real-time monitoring of the three-phase power supply of lifting equipment such as overhead cranes and gantry cranes to prevent the adverse consequences caused by the lack of power supply to the equipment. This product is made of LED ultra-high ......

Discussion on Design Requirements for Impeller of Important …

As one of the important basic materials for the construction industry, sand and gravel will undoubtedly contribute to China's construction and cannot be replaced. The industrial chain formed by the sand and gravel industry is also being continuously improved. The status of the sand and gravel ......

Guiding Opinions of the Ministry of Land and Resources on Im…

Now that China has proposed to develop green mines, then for the green mines, the National Mineral Resources Planning (2008-2015) puts forward the clear requirements for the development of green mining, and has determined the strategic goal of basically establishing a green mine pattern in 2020. To ......