Posts by Ibrar Ayyub:
Designer ‘swiss-army-knife’ molecule captures RNA in single cells in their natural tissue…
Posted on: 12 Jan 2014
A multi-disciplinary team from the University of Pennsylvania have published in Nature Methods a first-of-its-kind way to isolate RNA from live cells in their natural tissue microenvironment without damaging nearby cells. This allows the researchers to analyze how cell-to-cell chemical connections influence individual cell function and overall protein production.
New Battery Technology Charges 1000 Times Faster
Posted on: 12 Jan 2014
CHAMPAIGN, Ill. — Though they be but little, they are fierce. The most powerful batteries on the planet are only a few millimeters in size, yet they pack such a punch that a driver could use a cellphone powered by these batteries to jump-start a dead car battery – and then recharge the phone in […]
Fastron – metal enclosures with fluent shapes
Posted on: 11 Jan 2014
Aesthetic and relatively massive enclosures from company Fastron are the novelty able to provide an attractive look to your devices. Metal enclosures are a stable part of our offer. We usually choose them, when wanting to produce a device with a higher mechanical rigidity or with a higher resistance to disturbances (EMI shielding) but even […]
'Superlens' extends range of wireless power transfer
Posted on: 10 Jan 2014
(Phys.org) —Inventor Nikola Tesla imagined the technology to transmit energy through thin air almost a century ago, but experimental attempts at the feat have so far resulted in cumbersome devices that only work over very small distances. But now, Duke University researchers have demonstrated the feasibility of wireless power transfer using low-frequency magnetic fields over distances much larger than the size of the transmitter and receiver.
Study: Groups are the future for angel investing
Posted on: 10 Jan 2014
Entrepreneurs looking for risk capital to fund growth will need to get to grips with the rise of the angel group, according to the latest research by leading academics into business angel activity. In a joint project undertaken by the universities of Glasgow and Edinburgh, the growth in the number of managed angel groups signifies a maturing of the angel investment market from a fragmented, anonymous and largely invisible activity in which angels invested on their own or with a few friends to one characterised by formal groups or syndicates of angels investing together
Simple circuit indicates health of lithium-ion batteries
Posted on: 10 Jan 2014
Lithium-ion batteries are sensitive to bad treatment. Fire, explosions, and other hazardous condition may occur when you charge the cell below the margin that the manufacturer defines. Modern battery chargers can manage the hazardous conditions and deny operation when illegal situations occur. This fact doesn’t mean, however, that all cells are bad. In most cases, […]
Disordered materials hold promise for better batteries
Posted on: 09 Jan 2014
Lithium batteries, with their exceptional ability to store power per a given weight, have been a major focus of research to enable use in everything from portable electronics to electric cars. Now researchers at MIT and Brookhaven National Laboratory have found a whole new avenue for such research: the use of disordered materials, which had generally been considered unsuitable for batteries.
Dry Film Solder Mask
Posted on: 09 Jan 2014
This Instructable is about dry film solder mask, in other words, is the green stuff that is on top of the circuit board. I like to use smd components in my circuits board because I don’t have a computerized drill machine and do in it by hand for a big boards are really tedious. Soldering […]
DIY Amp Hour Meter – Arduino
Posted on: 08 Jan 2014
If you like this instructable, please vote for it! For my off-grid Ham Radio and Solar projects, I needed a way to measure volts, amps, watts, amp hours and watt hours. There’s a couple of commercial products that can do this, but not with the flexibility I wanted. I designed a Arduino micro-controller based solution […]
Charge a nickel-cadmium cell reliably and inexpensively
Posted on: 07 Jan 2014
Rechargeable NiCd (nickel-cadmium) cells are widely used in consumer devices because of their high energy density, long life, and small self-discharge rate. As a part of one project, I needed to design a reliable and inexpensive charger for a battery pack containing two NiCd AA-size 1200-mAh cells. In the process of the charger design, I […]
