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News articles about "Electrical resistance"

New sensor detects spoiled meat

MIT chemists have devised an inexpensive portable sensor that can detect gases emitted by rotting meat allowing consumers to determine whether the meat in their grocery store or refrigerator is safe to eat The sensor ... - Read More

How to maximize the superconducting critical temperature in a molecular superconductor

An international research team led by Professor Kosmas Prassides of Tohoku University has investigated the electronic properties of the family of unconventional superconductors based on fullerenes*1 which have the highest known superconducting critical temperature Tc ... - Read More

New processing technology converts used packing peanuts to battery components

Researchers have shown how to convert waste packing peanuts into high performance carbon electrodes for rechargeable lithium ion batteries that outperform conventional graphite electrodes representing an environmentally friendly approach to reuse the waste Batteries have ... - Read More

Nanotubes self-organize and wiggle: Evolution of a nonequilibrium system demonstrates MEPP

The second law of thermodynamics tells us that all systems evolve toward a state of maximum entropy wherein all energy is dissipated as heat and no available energy remains to do work Since the mid ... - Read More

Switching superconductivity by light

A research team led by Prof Hiroshi M Yamamoto of the Institute for Molecular Science National Institutes of Natural Sciences has developed a novel superconducting transistor which can be switched reversibly between ON and OFF ... - Read More

Magic numbers of quantum matter revealed by cold atoms

Topology a branch of mathematics classifying geometric objects has been exploited by physicists to predict and describe unusual quantum phases the topological states of matter These intriguing phases generally accessible at very low temperature exhibit ... - Read More

Nanoshaping method points to future manufacturing technology

A new method that creates large area patterns of three dimensional nanoshapes from metal sheets represents a potential manufacturing system to inexpensively mass produce innovations such as plasmonic metamaterials for advanced technologies The metamaterials have ... - Read More

Superconducting circuits, simplified

Computer chips with superconducting circuits circuits with zero electrical resistance would be 50 to 100 times as energy efficient as today's chips an attractive trait given the increasing power consumption of the massive data centers ... - Read More

For electronics beyond silicon, a new contender emerges

Silicon has few serious competitors as the material of choice in the electronics industry Yet transistors the switchable valves that control the flow of electrons in a circuit cannot simply keep shrinking to meet the ... - Read More

Unleashing the power of quantum dot triplets

Quantum computers have yet to materialise Ye scientists are making progress in devising suitable means of making such computers faster One such approach relies on quantum dots a kind of artificial atom easily controlled by ... - Read More

From pencil marks to quantum computers

One of the hottest materials in condensed matter research today is graphene Graphene had an unlikely start it began with researchers messing around with pencil marks on paper Pencil lead is actually made of graphite ... - Read More

Heat-based technique offers new way to measure microscopic particles

Researchers have developed a new heat based technique for counting and measuring the size of microscopic particles The technique is less expensive than light based techniques and can be used on a wider array of ... - Read More

Physicists quantify temperature changes in metal nanowires

Using the interaction between light and charge fluctuations in metal nanostuctures called plasmons physicist have demonstrated the capability of measuring temperature changes in very small 3 D regions of space Plasmons can be thought of ... - Read More

Bio-inspired robotic device could aid ankle-foot rehabilitation

Rubber
A soft wearable device that mimics the muscles tendons and ligaments of the lower leg could aid in the rehabilitation of patients with ankle foot disorders such as drop foot said Yong Lae Park an ... - Read More

Graphene sees the light: Sheets of carbon just one atom thick could be used in photovoltaic cells

Sheets of carbon just one atom thick could make effective transparent electrodes in certain types of photovoltaic cells Graphene a one atom thick sheet of carbon that is extremely strong and conducts electricity well is ... - Read More

Thermoelectric materials nearing production scale

Materials, materials
Half Heusler compounds are especially suited for manufacturing thermoelectric modules Waste heat can be converted to electricity with them Researchers have manufactured the alloys for the first time in kilogram quantities More than two thirds ... - Read More

Step closer to composite-based electronics

A new study demonstrates that electrical resistivity obeys a staircase like dependence on the conducting particle concentration in composite materials Composite materials are of increasing interest to physicists Typically they are made of electrically conducting ... - Read More

Giant atom eats quantum gas

Gas
A team of experimental and theoretical physicists from the University of Stuttgart studied a single micrometer sized atom This atom contains tens of thousands of normal atoms in its electron orbital The interaction of electrons ... - Read More

The '50-50' chip: Memory device of the future? Material built from aluminum and antimony shows promise for next-generation data-storage devices

Material, Material
A new environmentally friendly electronic alloy consisting of 50 aluminum atoms bound to 50 atoms of antimony may be promising for building next generation phase change memory devices which may be the data storage technology ... - Read More

Radically better smarphones may be possible using system inspired by bird migration: Molecular chains hypersensitive to magnetic fields

System
Researchers of MESA+ the research institute for nanotechnology of the University of Twente in cooperation with researchers of the University of Strasbourg and Eindhoven University of Technology are the first to successfully create perfect one ... - Read More
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