diallant

Enabling a circular economy for plastics in Europe and beyond is an ambitious goal. To reach a fully closed loop, numerous challenges and knowledge gaps need to be overcome. This review provides a list of more than 6000 chemicals reported to be found in plastics and an overview of the challenges and gaps in assessing their impacts on the…[Leia mais]

The selection of solvent for preparing a working electrode (and to act as the electrolyte) is known to influence the efficiency of dye-sensitized solar cells. In this topical review, results taken from a systematic study are presented from the authors’ own lab examining how protic and aprotic solvents, as well as solvent polarity, affect a…[Leia mais]

The state of inhibited cells in suspension culture was examined by dispersing them in a methyl cellulose gel, in vessels lined with agar. In this system aggregation is prevented and the cells may be recovered quantitatively. Normal, as well as transformed, cells increase in size, and a proportion synthetize DNA during the first 24 hours in…[Leia mais]

LED tube lights are usually categorised by various key designations. The most common of these are tube length (this can be stated in either imperial or metric measurements) and bulb or lamp size. Lamp size is typically given as a ‘T’ measurement, with widespread standard sizes including T5, T8 and T12.

If you’re wondering exactly what…[Leia mais]

The prime mover is the power source for the drilling, while the hoisting equipment handles lifting the drill pipe to either insert it into the well or lift it out of the well. Rotating equipment is what sets the whole system in motion. Before the early 1900s, drilling equipment was spun using livestock and a wooden wheel, but now, the…[Leia mais]

Brick Paver Cost

You should be able to buy the materials needed for a brick paver driveway for about $5 per square foot. If you do the job yourself, the labor will be free. Professional installation will probably start at about $10 to $20 per square foot, although fancier designs and pricier bricks can drive that price higher. This…[Leia mais]

Plenty of manual cutting applications call for a hand-held grinder and cutting wheel. Cutting sheet metal, sizing a piece for fabrication, cutting out a weld to refabricate it, and cutting and notching in pipeline work are just a few examples of what can be accomplished using a grinder and cutting wheel.

Resinoid-bonded cutting wheels…[Leia mais]

It often seems that analog wristwatches have gone the way of the landline, the film camera, and the crowded indoor restaurant. And while you may be resigned to telling time with your phone, there’s still a chance for your kid to get a kick out of an old-school analog watch. Kids watches are not only a very cool accessory (and one with a l…[Leia mais]

If you’re on the fence about mounting your new set, where it should go, and what mount you need, we’ve put together this guide on what to consider about your home before mounting, and what hardware you should be on the lookout for to get the job done right.

What’s with your walls?

Almost all universal TV mount are compa…[Leia mais]

Laboratory shakers are a key piece of equipment in any biological laboratory. Their versatility enables scientists to easily culture, monitor and scale up a range of experiments including biofuel research and microbiological cultures. When buying a new biological shaker, it’s important to consider the experiments and a…[Leia mais]