hu2022nian17

The right lighting can lift your spirits and make you more relaxed and productive.

Any experienced designer will tell you that lighting is an essential ingredient when you’re decorating a room — not the afterthought that many of us consider it.

If you’re tempted to spend more of your time picking out furnishings or puzzling over layouts, remem…[Leggi tutto]

Making process control valve choices

Control valves are used to manage the flow rate of a liquid or a gas and in-turn control the temperature, pressure or liquid level within a process. As such, they are defined by the way in which they operate to control flow and include globe valves, angle seat, diaphragm, quarter-turn, knife and needle valves,…[Leggi tutto]

PP Woven and Non-Woven Reusable Bags

Plastic is quickly becoming a vulgarity within the environmental community. Its production requires the use of nonrenewable resources, many types of plastics are difficult or impossible to recycle, and lightweight plastics easily end up in our oceans killing our wildlife.

But, not all plastic is the same,…[Leggi tutto]

Research on the effect of yield strength of circular saw blade on roll tensioning process

In this paper, a 2-D and 3-D finite element model of roll tensioning process of woodworking saw blade were established by Static/General module of ABAQUS software based on finite element method. The rolling force and tensioning stress distribution of…[Leggi tutto]

What is a Ball Valve and How Does It Work?

A ball valve is a shut-off valve that allows, obstructs, and controls the flow of liquids, gases, and vapors in a piping system by rotating the ball having a bore inside the valve. The ball is mounted against two seats and has a shaft that connects it to the operating and control mechanism that rotates…[Leggi tutto]

Experimental Investigation of Steel Plate Shear Walls under Shear-Compression Interaction

This paper describes the derivation of the equation for evaluating the strength of bridge steel plate reinforced concrete structure (SC) and the experimental results of SC panels subjected to in-plane shear.

Two experimental research programs were carried…[Leggi tutto]

A Guide to Types of Whatman Filter Paper Grades

A device that transmits part of a received signal and rejects the rest. The signal may be in the form of a beam of light or other radiation or may be an electrical signal. Optical, ultraviolet, and infrared filters are dyed plastic or gelatin, glass or glasslike substances, or confined liquids, all…[Leggi tutto]

What is the difference between Sublimation Paper and Heat Transfer Paper?

According to the experienced sublimation worker charles, the quick answer is No. You cannot use sublimation ink on ANY transfer paper for dark fabrics. Very basic information on sublimation is that it actually dyes the polyester fiber. Unlike ink on a transfer paper the…[Leggi tutto]

Photography Lighting Equipment: The Essential Guide

When you first dive into photography lighting equipment, you’re bound to feel massively overwhelmed. Studio lighting seems complex, it’s full of confusing jargon, and it certainly isn’t designed for the beginner.

But here’s the truth:

While photography lighting might seem complic…[Leggi tutto]

Do Sticky Mousetraps Work?

When it comes to mousetraps, the most traditional method is a snap trap, also known as spring-loaded bar traps. But that’s not your only option. Sticky mousetraps, or mouse glue tray, are also readily available. But do they work?

This simple, natural remedy helps keep mice away for good.

When mice are baited to t…[Leggi tutto]