Mechanical Engineering

Results 41 - 60 of 326.

Physics - Mechanical Engineering - 08.08.2018
Engineers develop world's most efficient semiconductor material for thermal management
Engineers develop world’s most efficient semiconductor material for thermal management
Researchers at the UCLA Samueli School of Engineering have developed a new semiconductor material — defect-free boron arsenide — that is more effective at drawing and dissipating waste heat than any other known semiconductor or metal materials. Managing heat in electronics is one of the biggest challenges in optimizing performance, in part because as as transistors become smaller, more heat is generated within the same footprint, which in turn slows down processor speeds, in particular at "hot spots" on the chips where that heat concentrates.

Life Sciences - Mechanical Engineering - 17.07.2018
Dragonfly Larvae Inspire New Designs for Prosthetic Heart Valves
Dragonfly Larvae Inspire New Designs for Prosthetic Heart Valves
A new understanding of the mechanics of dragonfly larvae respiration and maneuvering could lead to the next generation of prosthetic heart valves, say Caltech engineers.

Physics - Mechanical Engineering - 06.07.2018
Kirigami-inspired technique manipulates light at the nanoscale
Kirigami-inspired technique manipulates light at the nanoscale
Nanokirigami has taken off as a field of research in the last few years; the approach is based on the ancient arts of origami (making 3-D shapes by folding paper) and kirigami (which allows cutting as well as folding) but applied to flat materials at the nanoscale, measured in billionths of a meter.

Physics - Mechanical Engineering - 27.06.2018
Quantum Mechanics: Entanglements In Ultracold Atomic Clouds
Quantum Mechanics: Entanglements In Ultracold Atomic Clouds
A system's state is characterised as entangled or quantum correlated if two or more particles cannot be described as a combination of separate, independent states but only as a whole. Researchers at the Kirchhoff Institute for Physics of Heidelberg University recently succeeded in verifying so-called non-local quantum correlations between ultracold clouds of rubidium atoms.

Mechanical Engineering - Physics - 22.06.2018
What causes the sound of a dripping tap - and how do you stop it?
Scientists have solved the riddle behind one of the most recognisable, and annoying, household sounds: the dripping tap. And crucially, they have also identified a simple solution to stop it, which most of us already have in our kitchens.  We were all surprised that no one had actually answered the question of what causes the sound.

Computer Science - Mechanical Engineering - 20.06.2018
Driving Toward the Intersection of 3D Printing and Machine Learning
Applications of metal additive manufacturing, otherwise known as 3D printing, have primarily been confined to prototyping, but researchers are now pushing closer to developing metal 3D printing as a reliable form of industrial manufacturing. However, major obstacles still need to be addressed, especially in high-risk applications such as aviation components.

Mechanical Engineering - Environment - 04.06.2018
Experts build pulsed air rig to test 3D printed parts for low carbon engines
Researchers designed a unique facility for testing 3D printed engine parts, to help reduce carbon emissions worldwide. The new Transient Air System Rig (TASR) was designed and built by Dr Aaron Costall and his team from Imperial College London's Department of Mechanical Engineering. The researchers hope it will help makers of large off-road and freight vehicles reduce the amount of carbon dioxide (CO2) they produce.

Mechanical Engineering - Chemistry - 04.06.2018
The underwater adhesive
The underwater adhesive
A special formula for epoxy resins has been developed at TU Wien, which can be used for fibre-reinforced composites in aerospace, shipbuilding and automotive manufacturing, or even for underwater renovation. This is achieved merely by irradiating any part of the resin with light. Within seconds the new material can be completely transformed.

Environment - Mechanical Engineering - 17.05.2018
Consumers quickly learn what environmentally friendly looks like
Without realizing it, our brains quickly learn to associate certain visual cues - a curve of a car or color of a product - with certain attributes, such as its environmental friendliness. You can't judge a book by its cover, goes the saying. Yet, that's exactly what people do, according to new research from Stanford mechanical engineer Erin MacDonald and visiting researcher Ping Du.

Mechanical Engineering - Physics - 13.05.2018
Going with the flow
Going with the flow
Is sand a solid, a liquid, or a gas' It's a question that has plagued scientist for centuries. If a jogger runs on a beach, sand acts as a solid and supports their weight. Put it in an hourglass, and sand pours through the nozzle, much like a liquid. If a child in a sandbox trips and kicks up a cloud of sand, the separated grains collide and interact as though it's a gas.

Physics - Mechanical Engineering - 11.05.2018
Shen Puts High-Tech Spin on Polymers
Strong, lightweight, thermal nanofibers could be used in many industries Sheng Shen is Carnegie Mellon University's Spiderman. When the associate professor of mechanical engineering talks about his work with polymer nanofibers, he compares it to a spider spinning its web. "Just as a spider synthesizes silk from protein polymer to form a fiber with strength similar to high tensile steel, polymers can be spun and drawn to form high-strength materials with exceptionally high thermal conductivity," said Shen, associate professor of mechanical engineering at Carnegie Mellon University.

Mechanical Engineering - Physics - 09.05.2018
Fish in schools can take it easy
Fish in schools can take it easy
Using a new computer model, researchers at the Ecole Centrale de Marseille and CNRS have shown that a fish expends less energy when it swims in a school, because neighbouring fish produce a 'suction' effect. This work will be published on 11 May 2018 in Physical Review Letters . Schools of fish provide a fascinating example of collective behaviour in which the group moves in a coordinated manner without the need for a leader.

Electroengineering - Mechanical Engineering - 03.05.2018
Koman Family Outpatient Pavilion at UC San Diego Health Dedicated
An innovative, eel-like robot developed by engineers and marine biologists at the University of California can swim silently in salt water without an electric motor. Instead, the robot uses artificial muscles filled with water to propel itself. The foot-long robot, which is connected to an electronics board that remains on the surface, is also virtually transparent.

Mechanical Engineering - Innovation - 25.04.2018
Putting the future of flying to the test
Putting the future of flying to the test
The world's most powerful aerospace gearbox will go into service in 2025: It is part of the Rolls-Royce UltraFan design and will transfer up to 100,000 hp. In a project supported by the German federal government, scientists at the Technical University of Munich (TUM) are investigating how the gearbox's properties vary according to size and how they can be optimized.

Mechanical Engineering - Life Sciences - 19.03.2018
Taylor Puts New Twist on Measuring Stress in Materials
The U.S. Air Force has awarded Assistant Professor of Mechanical Engineering Rebecca Taylor funding to develop "nanosprings" that could stick to soft materials or be sprayed onto metals to estimate the mechanical stress a piece of machinery endures. The nanosprings would allow mechanics and engineers to monitor the integrity and function of mechanical equipment, such as struts or aircraft components.

Physics - Mechanical Engineering - 09.03.2018
Combining scientific languages to create an invisibility cloak
An assistant professor at Brussels' Vrije Universiteit and a visiting professor at Harvard, Vincent Ginis is a brilliant scientist who won a Solvay Award in 2014 and was designated as one of the top 50 tech pioneers in Belgium in 2017. His particular area of study is optics, but he makes a strong case for the combination of different scientific disciplines, or "languages", to drive progress in research.

Life Sciences - Mechanical Engineering - 14.02.2018
Acoustic blockage-detection system could prevent aircraft accidents
Acoustic blockage-detection system could prevent aircraft accidents
Pitots, which provide airspeed data, have played a role in several aircraft accidents, including the fatal Air France Flight 447 in 2009. New research by aerospace engineers at the University of Bristol has found that an acoustic blockage-detection system could prevent future accidents by making pilots aware of a blocked Pitot before a situation becomes critical.

Life Sciences - Mechanical Engineering - 14.02.2018
Tissue mechanics essential for cell movement
Cells that form facial features need surrounding embryonic tissues to stiffen so they can move and develop, according to new UCL-led research. The discovery has important implications for understanding the causes of facial defects which account for a third of all birth defects globally (3.2 million each year) and are the primary cause of infant mortality.

Physics - Mechanical Engineering - 07.02.2018
The Schrödinger equation as a Quantum clock
The Schrödinger equation as a Quantum clock
Researchers succeed in controlling multiple quantum interactions in a realistic material Materials with controllable quantum mechanical properties are of great importance for the electronics and quantum computers of the future.

Mechanical Engineering - Computer Science - 02.02.2018
Automating materials design
Automating materials design
For decades, materials scientists have taken inspiration from the natural world. They'll identify a biological material that has some desirable trait - such as the toughness of bones or conch shells - and reverse-engineer it. Then, once they've determined the material's "microstructure," they'll try to approximate it in human-made materials.