A new study shows that children who watch TV for a long time have much more junk food than children who often sit in front of a computer. Researchers say that unhealthy snacks and tempting advertisements may be the culprit.

The study was published at the 63rd American College of Cardiology Science Conference. Researchers selected 1003 students from 24 secondary schools in a community health school in southeastern Michigan. The questionnaire asked about the type (whether it was playing video games or watching TV), time and lifestyle, such as the choice of snacks and food and drinks. Blood pressure, cholesterol, height, weight, and recovery after exercise were also measured.
The researchers divided the students into three groups: "low" screen time, less than 30 minutes per day; high television time, watching TV two to six hours a day; high computer/electronic games, playing two to six hours a day game. They found that children spend more time eating unhealthy snacks in front of the TV or computer screen. At the same time, TV watching consumes more fat-rich foods such as potato chips and fries than computer/video game groups. The researchers believe that the children who spend a lot of time in front of the TV are mainly because of the influence of advertising, they chose snack foods with high salt, sugar and bad fat. Those children who play video games or use computers are often blind snacks.
Elizabeth Jackson, MD, senior author of the study, said: "We can change a person's early eating habits to promote healthy weight and eating habits to reduce future problems including heart disease, diabetes and high blood pressure.

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DUPLEX STAINLESS STEEL

Duplex Stainless Steels Available

Yuhong Group supplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.

Duplex Stainless Steel Overview

Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.

Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507

Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.

What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability

In what Applications are Duplex Stainless Steels® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts

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