Location: california, United States
Abstract :
Detecting trace amounts of analytes in aqueous systems is important for health diagnostics, environmental monitoring, and national security applications. Single-walled carbon nanotubes (SWNTs) are ideal components for both the sensor...
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Location: Nepoli, France
Watching a metal transform into a superconductor, it may not be obvious that
this transition provides access to some of the same physics that governed the
cooling of the universe following the Big Bang. Yet at the root of both of these...
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Location: Dallas, United States
Control of polymer morphology and chain orientation is of great importance in
organic solar cells and field effect transistors (OFETs). Here we report the use
of nanoimprint lithography to fabricate large-area, high-density, and ordered...
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Location: Khulna, Bangladesh
This Research
introduces a DC motor drive system with a fuzzy-artificial neural-network
controller. First, a neural network-based architecture is described for fuzzy
logic control. The characteristic rules and their membership functions of...
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Location: Cambridge, United States
Source: "The rational design of nitric oxide selectivity in
single-walled carbon nanotube near infrared fluorescence sensors for biological
detection"
Jong-Ho Kim et al
Nature Chemistry
Results: A...
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Location: Tsukuba, Japan
Among all available materials, diamond has the optimal characteristics with
respect to hardness, thermal conductivity, light transmission wavelength range,
and chemical stability. Furthermore, as a semiconducting material, diamond shows...
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Location: Cambridge, United States
Not far beneath the ocean's surface, tiny phytoplankton swimming upward in a
daily commute toward morning light sometimes encounter the watery equivalent of
Rod Serling's Twilight Zone: a sharp variation in marine currents that traps...
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Location: Cambridge, United States
Folding paper into shapes such as a crane or a butterfly is challenging
enough for most people. Now imagine trying to fold something that's about a
hundred times thinner than a human hair and then putting it to use as an
electronic device....
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Location: WA, United States
In a fuel cell, the anode facilitates the reaction between hydrogen, carbon
monoxide and hydrocarbon fuels with oxygen ions that permeate the electrolyte
from the cathode side of the cell. An ideal anode should have high electrical...
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Location: Cambridge, United States
MIT engineers have created a kind of beltway that allows for the rapid
transit of electrical energy through a well-known battery material, an advance
that could usher in smaller, lighter batteries -- for cell phones and other
devices -- that...
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Location: Cambridge, United States
A rising tide is said to lift all boats. Rising global temperatures, however,
may lead to increased disparities between rich and poor countries, according to
a recent MIT economic analysis of the impact of climate change on growth. ...
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Location: Cambridge, United States
New research findings at MIT could lead to microchips that operate at much
higher speeds than is possible with today's standard silicon chips, leading to
cell phones and other communications systems that can transmit data much faster. ...
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Location: Cambridge, United States
For the first time, MIT researchers have shown they can genetically engineer
viruses to build both the positively and negatively charged ends of a
lithium-ion battery.
The new virus-produced batteries have the same energy capacity and...
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Location: Cambridge, United States
Living cells are bombarded with messages from the outside world -- hormones
and other chemicals tell them to grow, migrate, die or do nothing. Inside the
cell, complex signaling networks interpret these cues and make life-and-death...
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Location: Cambridge, United States
The ubiquitous barcodes found on product packaging provide information to the
scanner at the checkout counter, but that's about all they do. Now, researchers
at the Media Lab have come up with a new kind of very tiny barcode that could...
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Location: California, United States
In a blown-up image from a scanning tunneling microscope, it looks just like
an endless sheet of chicken wire: a simple flat sheet made up of a lattice of
hexagons. But this nanoscopic material called graphene, first generally
acknowledged...
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Location: Marion Doucet or Nadine Peyrolo: @ pasteur.fr marion.doucet - 01 45 68 89 28, France
Through a study of human genetics in different populations around the world,
researchers at the Pasteur Institute and CNRS have discovered how pathogens may
vary over time the evolution of our immune system.
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Location: Tokyo, Japan
The thin-film EL devices use perovskite oxides, typified by barium titanate
(BaTiO3), which has long been used as capacitor material for
electronic circuits. With an emission starting voltage of ≈10 V AC, the power
source...
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Location: Heslington, United States
Equipment using wireless technology is becoming increasingly commonplace but
despite this up to 90 per cent of the radio spectrum can be idle in any one
location.
The failure to unlock the potential of this unused radio spectrum is...
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Location: Seattle, United States
A single hour of sunlight contains enough energy to meet global energy consumption for an entire year. With demand for energy on the rise and environmental pollution an increasing concern, scientists are exploring new ways to harness the sun's...
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