Swelling kinetic study of poly(methyl vinyl ether-co-maleic acid) hydrogels as vehicle candidates for drug delivery

This review highlights recent progress in the synthesis and application of vinyl ethers (VEs) as monomers for modern homo- and co-polymerization processes. VEs can be easily prepared using a number of traditional synthetic protocols…[더 보기]

UChicago institute helps reassemble ancient, rare art from first to 6th centuries

BAMIYAN, Afghanistan — Here is a reminder to someone with the initials A.B., who on March 8 climbed inside the cliff out of which Bamiyan’s two giant Buddhas were carved 1,500 years ago.

In a domed chamber — reached after a trek through a passageway that worms…[더 보기]

In trying to keep up with emissions and fuel efficiency laws, the fuel system used in modern cars has changed a lot over the years. The 1990 Subaru Justy was the last car sold in the United States to have a carburetor; the following model year, the Justy had fuel injection. But fuel injection has been around since the 1950s, and electronic fuel…[더 보기]

For beginners looking to hone their acrylic painting skills, this acrylic paint set of two dozen 12-milliliter tubes of paint from Colore is ideal. Providing an excellent selection of colors, this student-grade paint is suitable for use on a wide range of surfaces including canvas, paint, wood, fabric, and rock. Featuring a smooth texture for…[더 보기]

When selecting a hose material for a particular application, it is important to consider its performance in the short-term and long-term. For example, the ideal material should accommodate the environmental and operating conditions (e.g. heat, extreme cold, etc.) now and in the future. Below we outline how PVC, TPR, and PU measure up in these…[더 보기]

No matter how big or small the space is, the top items on your bathroom supplies list should include:

Mirror

Wastebasket

Natural Hand Soap

Bath towels, hand towels, washcloths (2 each)

Non-skid bath mat

Toothbrush holder

Over-the-door and/or wall hooks

Extra toilet paper

Toilet paper…[더 보기]

Hard hats have?come a long way since shipbuilders would cover their hats with tar to create a layer of protection from tools and objects falling from ships.?Today, the hard hat has become an iconic symbol to represent the construction industry.?Hard hats?are?typically?made?of polyethylene?and?additional?accessories such as shields, visors,…[더 보기]

Most dogs and cats in the U.S. eat food and treats manufactured specifically for their particular species. Holistic veterinarians focus on the quality of nutrients entering pets’ bodies and strive to get them on whole-food-based diets with the same grade of nutrients consumed by humans. By providing their pets with commercially available dry a…[더 보기]

In this article, we are going to introduction the technology of Fiber Laser marking Machine, understand its scientific background, its applications, materials targeted and its challenges.

After reading this article, you should be able to discern how best to use this machine for your own applications.

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How does a TFT module operate? First, TFT stands for “Thin Film Transistor,” and it describes the control elements that actively control the pixels. Because of that, you hear a lot said about active matrix TFTs. How do the images get produced? It operates on a basic principle. You have the TFT LCD display, which has many pixels, and each pixel has…[더 보기]

The principle of the SVG static var generator is very similar to that of Active Power Filter, as demonstrated in the picture below. When the load is generating inductive or capacitive current, it makes load current lagging or leading the voltage. SVG detects the phase angle difference and generates leading or lagging current into the grid, making…[더 보기]

The inception of the dust collector has allowed companies to effectively capture airborne particulate from an air stream. This has become more important for several reasons. First, containing particulate — toxic or not — is necessary to provide a healthy and clean work environment. Second, increasing local and global awareness of air pol…[더 보기]

Crystal oscillators are able to provide a much better level of performance than that provided by LC resonator circuits. Nevertheless crystal oscillators are still affected by temperature.

The angle of the cut and other aspects of the quartz crystal have a major impact on the performance.

As a result special cuts are defined and one…[더 보기]

Humidifier adds moisture to the air, which can benefit people with respiratory symptoms or dry skin.

There are several ways to use humidifiers in the home or office, but there are also some risks.

In this article, learn about the benefits of humidifiers, how to use them correctly, and precautions to take.

When hoverboards hit the scene in 2015, they were an immediate success. Also known as self-balancing or two-wheeled boards, these toys can be a fun way to get around. However, many parents began to wonder — just how dangerous are hoverboards?

Shortly after their debut, several manufacturers started selling hoverboard that were not i…[더 보기]