Brown University

Brown University

HQ Country
United States
フィルター:
Brown University
Company
Topic
Show
 
2020
25 Mar 2020

Deep Learning for Mechanical Property Evaluation

A standard method for testing some of the mechanical properties of materials is to poke them with a sharp point. This "indentation technique" can provide detailed measurements of how the material responds to the point's force, as a function of its penetration depth.
2019
6 Sep 2019

Graphene shield shows promise in blocking mosquito bites

An innovative graphene-based film helps shield people from disease-carrying mosquitos, according to a new study.
22 May 2019

Teaching robots to write and draw

An algorithm enables robots to put pen to paper, writing words using stroke patterns similar to human handwriting. It's a step, the researchers say, toward robots that are able to communicate more fluently with human co-workers and collaborators.
2018
29 Nov 2018

New smart material with potential biomedical, environmental uses

By combining seaweed-derived alginate with the nanomaterial graphene oxide, researchers have developed a new material that's durable and can respond dynamically to its environment.
26 Oct 2018

New, durable catalyst for key fuel cell reaction

The new catalyst exceeds Department of Energy targets for performing the oxygen reduction reaction, a key step in generating an electric current in a hydrogen fuel cell.
9 Aug 2018

Nanotube rebar makes graphene twice as tough

Rebar graphene is the nanoscale analog of rebar (reinforcement bars) in concrete, in which embedded steel bars enhance the material's strength and durability. Rebar graphene, developed by the Rice lab of chemist James Tour in 2014, uses carbon nanotubes for reinforcement.
6 Jul 2018

Graphene forms electrically charged crinkles

Gently compressed stacks of graphene form sharp crinkles that carry an electric charge, which could be useful in nanoscale self-assembly and other applications.
2017
25 Sep 2017

3D printed biomaterials that degrade on demand

Engineers have demonstrated a technique for making 3-D-printed biomaterials that can degrade on demand, which can be useful in making intricately patterned microfluidic devices or in making cell cultures than can change dynamically during experiments.
19 Jul 2017

Helping robots learn to see in 3D

Autonomous robots can inspect nuclear power plants, clean up oil spills in the ocean, accompany fighter planes into combat and explore the surface of Mars. Yet for all their talents, robots still can't make a cup of tea.
12 Jul 2017

Towards a high-resolution, implantable neural interface

The goal of The Neural Engineering System Design program is developing an implantable system able to provide precision communication between the brain and the digital world.
19 Jun 2017

Teaching robots manners

Advances in artificial intelligence are making virtual and robotic assistants increasingly capable in performing complex tasks. For these "smart" machines to be considered safe and trustworthy collaborators with human partners, however, robots must be able to quickly assess a given situation and apply human social norms.
8 Mar 2017

Robot uses social feedback to fetch objects intelligently

By enabling them to ask a question when they're confused, an algorithm helps robots get better at fetching objects, an important task for future robot assistants.
9 Jan 2017

Researchers design one of the strongest, lightest materials known

The new configurations have been made in the lab using a high-resolution, multimaterial 3-D printer.
2016
8 Nov 2016

Graphene templates to make new metal-oxide nanostructures

Researchers have found a new method for making ultrathin metal-oxide sheets containing intricate wrinkle and crumple patterns.
16 Jun 2016

Flexible and thin battery technology enables integrated sensors

Joint project aims at developing a multipurpose sensor, which is flexible and simple for its user.
27 Apr 2016

Flipping a chemical switch helps perovskite solar cells beat the heat

Thin films of crystalline materials called perovskites provide a promising new way of making inexpensive and efficient solar cells. Now, an international team of researchers has shown a way of flipping a chemical switch that converts one type of perovskite into another — a type that has better thermal stability and is a better light absorber.
28 Mar 2016

Wrinkles and crumples make graphene better

New research shows that repeatedly crumpling sheets of the nanomaterial graphene can actually enhance some of its properties.
6 Jan 2016

Solar energy from discarded car batteries

A simple procedure for making a promising type of solar cell using lead recovered from discarded lead-acid car batteries — a practice that could benefit both the environment and human health.
2015
29 Jul 2015

Anelastic nanowires could enable stretchable electronic devices

Researchers have found that nanoscale wires (nanowires) made of common semiconductor materials have a pronounced anelasticity - meaning that the wires, when bent, return slowly to their original shape rather than snapping back quickly.
28 Apr 2015

Ultrasound test echoes with battery charge

Researchers have shown that ultrasound echoes can indicate density changes to provide a simple and non-invasive method for measuring charge within any battery.