Posts by Ibrar Ayyub:
Drugs and other contaminants found in private drinking wells on Cape Cod
Posted on: 27 Jan 2016
Recent news about tainted water in Flint, Michigan, and other parts of the country have called into question the safety of the nation’s drinking water supply. Adding to this, a new study finds that pollutants from household wastewater—pharmaceuticals and consumer product chemicals—can make their way into people’s private wells, and that backyard septic systems are likely to blame
Leave an excess heat to Fischer heatsinks
Posted on: 27 Jan 2016
Precise heatsinks from the production of Fischer Elektronik will take care for your devices to stay “cool”. Over 40 years of experience of company Fischer reflect in an excellent reputation and mainly in a stable high quality of their products. Main production portfolio consists of heatsinks, connectors and enclosures. Narrow specialization on mechanical and […]
1kHz Chebyshev Filter
Posted on: 27 Jan 2016
The Chebyshev filter features a steep roll-off, but has ripple in the pass band. So it is not suited for audio signal use, where a flat response is ideal. The roll off is so fast that the common definition for cut-off frequency does not work for Chebyshev filters. For this type of filter the cutoff […]
An alternative to platinum: Iron-nitrogen compounds as catalysts in graphene
Posted on: 27 Jan 2016
Fuel cells convert the chemical energy stored in hydrogen (H2) into electrical energy by electrochemically “combusting” hydrogen gas with oxygen (O2) from the air into water (H2O), thereby generating electricity. As a result, future electric automobiles might be operated quite well with fuel cells instead of with heavy batteries.
Blockchain could challenge the accepted ways we shape and manage society
Posted on: 27 Jan 2016
In only a few years, digital currency bitcoin has emerged from the shadows to become something debated by politicians and pondered by economists. Now it is blockchain, the technology that makes bitcoin possible, that is having its moment in the sun: the UK government’s Chief Scientist Sir Mark Walport laid out a possible role for it in delivering public services.
Space-earth system produces highest-resolution astronomical image
Posted on: 26 Jan 2016
Using an orbiting radio-astronomy satellite combined with 15 ground-based radio telescopes, astronomers have made the highest-resolution, or most-detailed, astronomical image yet, revealing new insights about a gorging black hole in a galaxy 900 million light-years from Earth. The scientists combined signals from the Spektr-R satellite of the RadioAstron mission with those from radio telescopes throughout Europe and nine antennas of the National Science Foundation’s Very Long Baseline Array (VLBA)
NASA provides a look at post-blizzard snowfall and winds
Posted on: 26 Jan 2016
NASA satellites obtained a number of different views of the great winter storm that left many snowfall records from Virginia to New York City from January 22 to 24, 2016. RapidScat provided a look at the strong winds that led to flooding in southern New Jersey, while NASA’s Aqua satellite and NASA/USGS’s Landsat satellite provided images of the post-storm snowy blanket.
Immediately available TFT modules with capacitive touch panels
Posted on: 25 Jan 2016
FTDI „Embedded Video Engine“ (EVE) platform may be familiar to you from our article like „Be in plus with a graphic platform FTDI VM800P “. FT800, as a powerful graphic platform with minimum requirements for a host MCU will meet your requirements with a high probability. Into the final application, you´ll probably use only the […]
Smart songbird’s reference genome is milestone for ecological research
Posted on: 25 Jan 2016
A well-known songbird, the great tit, has revealed its genetic code, offering researchers new insight into how species adapt to a changing planet. Their initial findings suggest that epigenetics—what’s on rather than what’s in the gene—may play a key role in the evolution of memory and learning.
LTC7138 – High Efficiency, 140V 400mA Step-Down Regulator
Posted on: 24 Jan 2016
Features Wide Operating Input Voltage Range: 4V to 140V Internal Low Resistance Power MOSFET No Compensation Required Adjustable 100mA to 400mA Maximum Output Current Low Dropout Operation: 100% Duty Cycle Low Quiescent Current: 12μA Wide Output Range: 0.8V to VIN 0.8V ±1% Feedback Voltage Reference Precise RUN Pin Threshold Internal or External Soft-Start Programmable 1.8V, 3.3V, […]
