What is selectivity of a filter?

Shape factor is a common figure of merit for a related term, selectivity. For an RF filter selectivity tells us how much of the total bandwidth will be used by transition bands. The smaller the transition bands the smaller any necessary guard bands can be and less of the bandwidth is wasted in this way.

What is plastic flow rule?

The flow rule describes the interconnection between the next plastic strain increment at a stress state for a deformed material point. This relation reminds us of the stress‐strain relation for a viscos fluid and uses the principle of a plastic potential surface g.

Which is stronger forging or casting?

Forged steel is generally stronger and more reliable than castings and plate steel due to the fact that the grain flows of the steel are altered, conforming to the shape of the part.

What is LDPE used for?

LDPE is a very versatile plastic and is often used in flexible film and bag applications, but it can also be used to make bottles, food storage containers and rigid trays.

What is the difference between LDPE and PVC?

PVC in its native form is brittle and hard, so it needs softening and flexibility by adding other compounds called plasticizers. Polyethylene's properties depend on the type. LDPE is much softer and more malleable than linear polyethylenes such as high-density polyethylene, or HDPE.

Can you make plastic without oil?

Scientists have discovered a previously unknown way that some bacteria produce the chemical ethylene – a finding that could lead to new ways to produce plastics without using fossil fuels. The study, published today (Aug.

How much money does it take to produce plastic bags?

A standard plastic grocery bag costs about a penny to produce, according to the plastics industry, compared with 4 cents to 5 cents for a paper bag.

What is OG molding?

Ogee profiles, trims or mouldingsAn ogee profile is a decorative moulding which is ogee-shaped. In homes they are often used for skirting, architraves, worktop edges, plinths, coving and cabinet cornices. It's also called a cyma. The ogee profile on this worktop creates a more ornate finish.

What are 5 common plastics used in homes?

Below is 7 of the most popular and commonly used plastics:Polypropylene (PP) Polyethylene Terephthalate (PETE or PET) Polyvinyl Chloride (PVC) Acrylonitrile-Butadiene-Styrene (ABS)

What is the difference between industrial and manufacturing?

Manufacturing engineers may manage quality control processes during the construction of machinery, while industrial engineers often oversee quality control for both manufacturing and organizational processes.

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