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Effects of melting parameters and quartz purity on silica glass crucible produced by arc method

We have investigated the effect of hydroxyl (OH) content in fused silica crucible on the scintillation and optical properties of the CsI single crystal, but not limited to, grown by Bridgman technique. For the purpose, 0.1 mol% Tl doped CsI single…[Leggi tutto]

Solar street lighting is a unique opportunity for sustainable recovery

In response to the economic fallout from COVID-19, the European Union has formulated a major recovery plan for the continent with a key focus on adapting to the digital age and investing in cleaner and more resilient technologies for the future. In the U.S., the 2021 American…[Leggi tutto]

On the Move: Unpacking the Challenges and Opportunities of Electric Vehicles

SINGAPORE – More than 600 electric vehicle (EV) chargers will be installed at some 200 public carparks in HDB estates, industrial estates and the Central Business District over the next 12 months.

The first of these car chargers are expected to be installed by the end…[Leggi tutto]

Rising Prices for PE, PVC; Others Flat to Down

The trajectory of prices of the five volume commodity PVC resin powder was upward through September; but starting last month, a reversal was underway for most of these resins, possibly excepting PE and PVC. Factors in the continued flat-to-downward trajectory for PP, PS and PET included expectations…[Leggi tutto]

A review of a machine design of chocolate extrusion based co-rotating twin screw extruder

Based on innovation and competitive market for food industry, there are several food products which have been designed to attract customer. Since there is USD 39,431 millions of chocolate sales in 2018, USA [1], chocolate product shapes have been developed…[Leggi tutto]

Why Hot Foil Stamping Helps Packaging To Shine

Differentiation. It’s what every brand owner wants for their product, but in increasingly crowded markets, it is becoming harder and harder to achieve.

Brand owners know that packaging is the key differentiator on the shelf, and special finishing techniques – such hot foil stamping and thermal emb…[Leggi tutto]

Sandblasting

Air-abrasion (sandblasting) techniques have long been employed in restorative dentistry to enhance the mechanical adhesion between metals and adhesive resins. Sandblasting uses a high-speed stream of aluminum oxide particles propelled by compressed air to remove unfavorable oxides and contaminants, increase surface energy, bonding…[Leggi tutto]

Ball Valve – How They Work

A ball valve is a shut off valve that controls the flow of a liquid or gas by means of a rotary ball having a bore. By rotating the ball a quarter turn (90 degrees) around its axis, the medium can flow through or is blocked. They are characterized by a long service life and provide a reliable sealing over the life…[Leggi tutto]

Air Fryer

If you are a family of two, you can make easy meals with a small air fryer. While there are many different sizes of air fryers available in the market, for a family of two, an air fryer from 2 to 4 quarts will be ideal. As these air fryers are small in size, they do not take much space on the kitchen shelf, and they cook ample food for…[Leggi tutto]

How to choose the right retractable monitor?

A retractable LCD monitor for use in aircraft and the like is supplied with power from a power supply that is secured in a fixed off-monitor location on the monitor’s housing. The power supply also provides power for a motor assembly that controls a pivoting of the monitor between open and retracted…[Leggi tutto]

The PCR tube is highly optimized to achieve excellent PCR Supplies performance in various thermal cyclers. These innovative and RNase-free PCR tubes are the results of years of research on the best design of PCR tubes, coupled with meticulous craftsmanship to ensure that each product is as perfect as the first product. The results speak for…[Leggi tutto]

Automatic classification of granite tiles through colour and texture features

This paper is about the development of an expert system for automatic classification of granite tiles through computer vision. We discuss issues and possible solutions related to image acquisition, robustness against noise factors, extraction of visual features and…[Leggi tutto]

TURN YOUR KID’S ARTWORK INTO A SCRAPBOOK

The kids have only been in school for two months, but the papers and artwork are piling up. Normally I keep a select pieces of artwork and recycle the rest (after the kids are in bed). This year I’m taking a different approach. Armed with my Straight Talk Samsung Galaxy S6, I’m taking pictures of their…[Leggi tutto]

Calculation Inductance of Toroidal Inductor Wound by Rectangular Cross-Sectional Wire

In this article, we present two methods for calculation of the inductance of toroidal core power inductors wound by rectangular cross-sectional wire, considering that the current density is inversely proportional to the circular coil radius. The first method is…[Leggi tutto]

Calculation Inductance of Toroidal Inductor Wound by Rectangular Cross-Sectional Wire

In this article, we present two methods for calculation of the inductance of toroidal core power inductors wound by rectangular cross-sectional wire, considering that the current density is inversely proportional to the circular coil radius. The first method is…[Leggi tutto]

The integrated impact indicator revisited

We propose the I3* indicator as a non-parametric alternative to the journal impact factor (JIF) and h-index. We apply I3* to more than 10,000 journals. The results can be compared with other journal metrics. I3* is a promising variant within the general scheme of non-parametric I3 indicators introduced…[Leggi tutto]