Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.
full reflective motorcycle safety vest
We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.
Professional team work and production line which can make nice quality in short time.
The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
impact, configuration to compute Summation of Tests for the Analysis of Risk (STAR) values. STAR Ratings . The STAR equation was originally developed to the incidence of estimate concussion that a college football player may ,experience, while wearing a given ,helmet, the …
A hard shell helmet provides good protection against penetration and is durable. However, the nature of the stiff outer shell also has its drawbacks. On impact, the hard shell causes an abrupt stop of the head. This increases the risk of brain injuries and whiplash injuries are more likely as hard shell helmet is more prone to rebound on impact.
Safety helmet are designed to protect the head against falling objects and the side of the head, eyes, and neck from any untoward impacts, bumps, scrapes, and electrical exposure, etc. Wearing a safety helmet is a mandatory requirement that should be followed by all employers who should provide their workers with hard hats/safety helmet and fully ensure that they wear them.
Alter the part of the ,helmet, that hits the ground first (the top of the ,helmet, vs the side of the ,helmet,) to see what type of ,impact, causes the most damage in a crash. Test new ,helmets, versus old ,helmets, to see if the age of a ,helmet, makes a difference in how well it protects your head.
Scholars spanning a variety of disciplines have studied the ways in which contact with natural environments may ,impact, human well-being. We review the effects of such nature ,experience, on human cognitive ,function, and mental health, synthesizing work from environmental psychology, urban planning, the medical literature, and landscape aesthetics.
They are designed to provide safety to the rider by protecting the rider’s head in case of an impact and prevent or reduce head injuries. Some modular motorcycle helmets , however, provide extra conveniences such as intercom, Bluetooth, face shield, ear protection and ventilation among many others.
Helmet-to-helmet impacts are often glancing blows owing to the smooth rounded shape of the helmet. This was recognized in both the design of the pendulum arm and initial selection of impact sites. Impacts to a wide variety of sites on helmets revealed that hits high on the helmet, or nearly tangential to the outer profile, tended to be very minor in terms of head accelerations.