For manufacturers of nitride laser diodes, ridge etching offers a fair performance and cost trade-off. But the selection of the etch depth means compromise: if it is shallow and leaves a p-side waveguide thickness of 100nm or more, high lateral current leakage and optical mode instability in the waveguide will impair performance. If it is deep, benefits of a decrease in threshold current density, strong index guiding and a high slope efficiency is weighed against the challenge of realising both high etch quality and good thermal management.
Classical music is hard to define in specific terms, but it is generally understood to be music rooted in Western European traditions, performed by trained musicians in formal settings like concert halls, opera houses, and churches. Key emphasis is the faithful interpretation of composers' written scores. Classical music's roots however lie in the chant melodies of Medieval religious rites.
Research collaboration spearheaded by ETH Zurich sheds a light on the genome of two commercially important species of bumblebees. The findings provide unexpected insights into the ecology and evolution of bumblebees and honeybees. In other research at QMUL (Queen Mary University of London), bees infected with crithidia bomb parasite, given an option to choose between sugar solution with nicotine in it and without, would if infected by the parasite, go for the nicotine nectar.
Analysing the large volumes of data gathered by modern businesses and public services has become problematic. Traditionally, relationships between the different parts of a network are represented as simple links, regardless of how many ways they can actually interact, potentially loosing precious information.
Using 3D printing technology, Lawrence Livermore National Laboratory researchers are able to create micro-lattices with a graphene aerogel that can be used in applications such as nano electronics and energy storage. The news is on the heels of Lodz University who have worked on developing HSMG (High Strength Metallurgical Graphene).
As computers continue to shrink, moving from desks and laps to hands and wrists— memory has to become smaller, more stable and energy conscious. At Drexel University’s College of Engineering, a group of researchers is trying to achieve that with help from a new class of materials, whose magnetism can be controlled by the flick of a switch. At North Carolina State University, researchers discover that electron spin brings a previously unknown degree of order to the high entropy alloy NiFeCrCo (nickel iron chromium cobalt), and may play a role in giving the alloy its desirable properties.
Based on methods developed by scientists fromPoland’s Lodz University of Technology, a spinoff company AGP has created a production process for graphene that is unique and also extremely efficient as it introduces an entirely new graphene product HSMG (High Strength Metallurgical Graphene) produced on a liquid metal substrate.
Seeking to develop nextgen micro-electronic transistors, researchers have been hunting a silicon replacement witih a wealth of recent research going into fully flexible electronic circuitry focused on various organic and metal-oxide ink materials, which can lack the favorable electronic properties of Can't Meet Our Standard CMOS silicon but do offer superior "printability." The result is printable, wearable, and even edible!
Where some claim the future is digital, others emphasise it is distributed and will have an impact on digital currencies such as Bitcoin. The algorithm mining money making method has a total value now of approximately $3.4 billion, and companies and investors are at work to prove the technology makes financial services both cheaper and more useful.
ScottishPower Renewables is working to protect endangered black grouse on its wind farms across Scotland. A team has been overseeing creation of native woodland habitats, involving planting trees and restoration of moorland areas, at sites that include Cruach Mhor in Argyll and Bute and Green Knowes, Perthshire. SPR also plans a detailed study, tracking the movements of these grouse, following funding support by the World Pheasant Association, in a collaborative study with Newcastle University
Anacail Limited, a University of Glasgow’s School of Physics and Astronomy spinout, closes a £2 million “Series A” equity investment whose consortium includes new investor Sussex Place Ventures, existing investors IP Group plc and SIB (Scottish Investment Bank) plus some private individuals. Fundraising process support came from IP Group subsidiary, IP Capital.
Website foundries are working overtime. The html wizards are casting their spells. In three days time, intensive work on the new website Madeherenow.com will be launched at 6.30pm at the Building Centre Gallery, London, featuring speeches by (below) author and commentator Will Hutton and CEO of the EEF, the manufacturer's organisation Terry Scuoler
The HWDT (Hebridean Whale and Dophin Trust) reports a doubling of common dolphin encounters in the Hebrides. This substantial increase in common dolphin encounters off western Scotland is to be studied by Cetacean Hebridean Whale and Dolphin Trust in a new season of marine research expeditions beginning next month.
In a bid to close the cyber security skills gap, MWR InfoSecurity - the global research-led security consultancy, is bringing back its highly anticipated and prestigious HackFu event for the eighth year running. HackFu 2015 aims to test and improve existing cyber security and team work skills amongst the industry’s best emerging talent, through a series of tasks and challenges that push participants to explore beyond their comfort zones.
University of Dundee student Ellis O’Connor has been selected for a month-long residency in the Arctic. Aged 23 she graduated from Duncan of Jordanstone College of Art and Design, part of the University, last year, recently winning the RSA Landscape Award at the prestigious New Contemporaries exhibition in Edinburgh.
Researchers from the University of Waterloo in Canada report a new design for electromagnetic energy harvesting, based on the "full absorption concept." This involves the use of metamaterials tailored to produce media that neither reflects nor transmits any power—enabling full absorption of incident waves at a specific range of frequencies and polarisations.
A new and unusual computer game has been developed that allows players to experience and explore the complexities of sustainable fishing. The game allows players to directly investigate the effects of different fisheries management measures on fishermen’s behaviour. It was also used to engage fishermen in discussions about possible incentives of different management measures aiming to conserve fish stocks in European waters.
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