hy19992

What is Bubble Tea (or Boba Tea)?

With its jewel-like tapioca pearls, iconic fat straws and a full rainbow of colour choices, bubble tea seems made for the Instagram generation. But in fact, this photogenic thirst-quencher has been around since the 1980s. It was first invented in Taiwan, and has been popular in many East Asian countries ever…[Leggi tutto]

Quality of Surgical Instruments

Many surgeons will have encountered the scissors that would not cut, and the artery clip that comes off in a deep difficult location, but it would be reasonable to assume that new instruments should be of assured quality. This study reports the surprising findings of a local quality control exercise for new…[Leggi tutto]

Ultraviolet Light Fights New Virus

In the fight against the coronavirus disease 2019 (COVID-19) pandemic, an old weapon has re-emerged [1]. More than a century after Niels Finsen won the 1903 Nobel Prize for discovering that ultraviolet (UV) light could kill germs [2], UV light is surging in popularity as a method for disinfecting hospital rooms…[Leggi tutto]

Choosing the Ideal Shower Door For Your Bathroom

Showers have taken a central role in today’s bathroom design, with some people even choosing to leave the tub out of their bathroom renovation in favor of a larger shower. There is no one-size-fits-all shower, and likewise bathroom shower door come in a variety of styles and sizes to suit any d…[Leggi tutto]

Natural raw materials for better animal health

Commercial feed ingredients alone are usually not as palatable and nutritionally optimal as the balanced feed diet.

However, such ingredients offer secured availability as nutritionally and health-related optimal raw ingredients. Demand for the commercialisation of such ingredients is challenging…[Leggi tutto]

The Benefits of Plant Extracts for Human Health

Nature has always been, and still is, a source of foods and ingredients that are beneficial to human health. Nowadays, plant extracts are increasingly becoming important additives in the food industry due to their content in bioactive compounds such as polyphenols [1] and carotenoids [2], which…[Leggi tutto]

Aluminum CNC Machine: Benefits and Possible Alternatives

For CNC machining projects, aluminum is one of the most popular material choices due to its desirable physical properties. It is strong, which makes it ideal for mechanical parts, and its oxidized outer layer is resistant to corrosion from the elements. These benefits have made aluminum…[Leggi tutto]

How Does Bitcoin Mining Work?

Bitcoin mining is the process by which new bitcoins are entered into circulation; it is also the way that new transactions are confirmed by the network and a critical component of the maintenance and development of the blockchain ledger. “Mining” is performed using sophisticated hardware that solves an extremely…[Leggi tutto]

The continuous flowmeter

Flow meters are classed as volumetric or inferential, the latter term referring to meters that determine velocity from other variables such as pressure differences across a device such as an orifice plate. There is a large variety of flow measurement device, using numerous physical principles. Full discussion of the…[Leggi tutto]

Latex Medical Gloves: Time for a Reappraisal

Many hospitals have implemented policies to restrict or ban the use of devices made of natural rubber latex (NRL) in healthcare as precautionary measures against the perceived risk of NRL allergy. Changes in glove technology, progress in measuring the specific allergenic potential of gloves and a…[Leggi tutto]

Does a dehumidifier cool a room?

A new humid air humidifier was designed and built. It is composed with two identical stages. The condensation is achieved on vertical tubes. Many configurations are tested. A thermodynamic model has been established. This model predicted the performances of each stage. The results showed that the flow rate of…[Leggi tutto]