Posts Tagged ‘University of Waterloo’

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Canadian federal government coughs up funds ($1.8M) for ecoEnergy project at the University of Waterloo Institute for Nanotechnology

Tuesday, May 14th, 2013

Stephen Harper, Prime Minister of  Canada, recently announced a series of 32 grants for Natural Resources Canada’s ecoENERGY Innovation Initiative. From the May 3, 2013 announcement,

To this end, on May 3, 2013, Prime Minister Stephen Harper announced support of more than $82 million through Natural Resources Canada’s ecoENERGY Innovation Initiative (ecoEII) for 55 innovative projects across Canada. Of these, 15 will be pre-commercialization demonstration projects to test the feasibility of various technologies, and 40 will be research and development projects to address knowledge gaps and bring technologies from the conceptual stage to the ready-to-be-tested stage of development.

For all projects, funding provided by NRCan will be allocated from the date of signature of contribution agreements until March 31, 2016, the project end date.

Since 2006, the Government of Canada has taken action to reduce greenhouse gas emissions and build a more sustainable environment through more than $10 billion in investments in green infrastructure, energy efficiency, clean energy technologies and the production of cleaner energy and cleaner fuels.

….

High Energy Density Energy Storage for Automotive Applications
Lead Proponent: University of Waterloo
Location: Waterloo, Ontario
Funding: $1,870,000

Today’s electric vehicles are limited by driving range and cost, both of which greatly depend on the electric vehicle’s battery pack. The objective of this project is to develop advanced energy materials based on nanotechnology concepts for high energy density storage.

There’s more about the announcement in a May 14, 2013 news item in the LabCanada.com Daily news,

Led by Professor Linda Nazar of the Faculty of Science and the Waterloo Institute for Nanotechnology at the University of Waterloo, the study will examine completely new approaches to materials and chemical components of batteries that could result in more powerful, and longer-lasting batteries for hybrid electric or electric cars.

“The funding from Natural Resources Canada allows us to expand our electrochemical energy storage laboratory here at Waterloo to explore beyond lithium-ion batteries using nanotechnology and completely different approaches to battery chemistry,” said Professor Nazar, a Canada Research Chair in Solid State Energy Materials. “This research is high-risk, but it has the potential to create batteries with much greater storage capacity and at lower costs.”

Natural Resources Canada (NRCan) is providing $1.8 million over four years to Professor Nazar for her work titled High Energy Density Storage for Automotive Applications.  Partnerships on the project include Hydro-Québec, the Korea Institute of Energy Technology Evaluation and Planning, and BASF (SE).

…

For anyone who’s interested in Natural Resources Canada’s ecoENERGY Innovation Initiative (ecoEII), here’s the website.

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Posted in energy, nanotechnology | No Comments »

A ‘graphite today, graphene tomorrow’ philosophy from Focus Graphite

Wednesday, April 17th, 2013

Focus Graphite, a Canadian company with the tag line ‘Think Graphite today, Think Graphene tomorrow’, is making a bit of splash this month (April 2013) with its announcement of three deals (two joint ventures and the commissioning of their pilot plant) and it’s only April 17.

The most recent is the pilot plant announcement, from Focus Graphite’s Apr. 17, 2013 press release,

Focus Graphite Inc. (TSX-V:FMS)(OTCQX:FCSMF)(FRANKFURT:FKC) (“Focus” or the “Company”) is pleased to report the commissioning of its pilot plant and the start-up of circuit testing for the production of high-grade graphite concentrates from the Company’s wholly-owned Lac Knife, Québec graphite project.

The principal objectives of the pilot plant testwork are to confirm the results from Phase II bench scale Locked Cycle Tests (LCT)*; to assess the technical viability and operational performance of the processing plant design; to generate tailings for environmental testing, and; to produce a range of graphite raw materials for customer assessments and for further upgrading.

The Lac Knife project pilot plant was designed and built and is being operated by SGS Canada Inc. (“SGS”) in Lakefield, Ontario. The testing is expected to last 4-6 weeks.

….

The highlights of those tests conducted by SGS confirmed:-       The average amount of graphite flake recovered from the core samples in the Phase II LCT increased to 92.2% compared with a recovery of 84.7% graphite flake in the Phase I LCT;

-       The proportion of large flakes (+80 mesh) in the graphite concentrates ranged between 35% and 58%;

-       The carbon content of graphite concentrates produced from the four (4) composites averaged 96.6 %C, including the fine flake fraction (-200 mesh), a 4.6% increase over Phase I LCT completed in mid-2012.

Final results for Phase II LCT including for the two composite drill core samples of massive graphite mineralisation are pending.

* A locked cycle test is a repetitive batch flotation test conducted to assess flow sheet design. It is the preferred method for arriving at a metallurgical projection from laboratory testing. The final cycles of the test are designed to simulate a continuous, stable flotation circuit.

There’s also the announcement of a joint venture between Grafoid (a company where, I believe, 40% is owned by Focus Graphite) with the University of Waterloo, from the Apr. 17, 2013 news item on Azonano,

Focus Graphite Inc. on behalf of Grafoid Inc. (“Grafoid”) is pleased to announce the signing of a two-year R&D agreement between Grafoid Inc. and the University of Waterloo to investigate and develop a graphene-based composite for electrochemical energy storage for the automotive and/or portable electronics sectors.

Gary Economo, President and CEO of Focus Graphite Inc. and Grafoid Inc., said the objective of the agreement is to research and develop patentable applications using Grafoid’s unique investment which derives graphene from raw, graphite ore to target specialty high value graphene derivatives ranging from sulfur graphene to nanoporous graphene foam.

…

“Today’s announcement marks Grafoid’s fifth publicly declared graphene development project with a major academic or corporate institution, and the third related directly to a next generation green technology or renewable energy development project,” Mr. Economo said.

It follows R&D partnering projects announced with Rutgers University’s AMIPP, CVD Equipment Corporation, with Hydro-Quebec’s research institute, IREQ, and with British Columbia-based CapTherm Systems, an advanced thermal management technologies developer and producer.

Focus Graphite’s Apr. 16, 2013 press release, which originated the news item on Azonano, provides some context for the intense worldwide interest in graphene and the business imperatives,

Alternative Energy & Graphene:

The quest for alternative energy sources is one of the most important and exciting challenges facing science and technology in the 21st century. Environmentally-friendly, efficient and sustainable energy generation and usage have become large efforts for advancing human societal needs.  Graphene is a pure form of carbon with powerful characteristics which can bring about success in portable, stationary and transportation applications in high energy demanding areas in which electrochemical energy storage and conversion devices such as batteries, fuel cells and electrochemical supercapacitors  are the necessary devices.

Electrochemical Supercapacitors:

Supercapacitors, a zero-emission energy storage system, have a number of high-impact characteristics, such as fast charging, long charge-discharge cycles and broad operating temperature ranges, currently used or heavily researched in hybrid or electrical vehicles, electronics, aircrafts, and smart grids for energy storage. The US Department of Energy has assigned the same importance to supercapacitors and batteries. There is much research looking at combining electrochemical supercapacitors with battery systems or fuel cells.

Fuel Cells:

A fuel cell is a zero-emission source of power, and the only byproduct of a fuel cell is water. Some fuel cells use natural gas or hydrocarbons as fuel, but even those produce far less emissions than conventional sources. As a result, fuel cells eliminate or at least vastly reduce the pollution and greenhouse gas emissions caused by burning fossil fuels, and since they are also quiet in operation, they also reduce noise pollution. Fuel cells are more efficient than combustion engines as they generate electricity electrochemically. Since they can produce electricity onsite, the waste heat produced can also be used for heating purposes. Small fuel cells are already replacing batteries in portable products.

Toyota is planning to launch fuel cell cars in 2015, and has licensed its fuel cell vehicle technology to Germany’s BMW AG. BMW will use the technology to build a prototype vehicle by 2015, with plans for a market release around 2020.

By 2020, market penetration could rise as high as 1.2 million fuel cell vehicles, which would represent 7.6% of the total U.S. automotive market. Other fuel cell end users are fork lift and mining industries which continuously add profits to this growing industry.

Proton or polymer exchange membranes (PEM) have become the dominant fuel cell technology in the automotive market.

The U.S. Department of Energy has set fuel cell performance standards for 2015. As of today, no technologies under development have been able to meet the DOE’s  targets for performance and cost.

As I am from British Columbia and it was the first joint venture deal signed in April, here’s a bit more from Focus Graphite’s Apr. 9, 2013 press release,

Focus Graphite Inc. (TSX-V:FMS)(OTCQX:FCSMF)(FRANKFURT:FKC) on behalf of Grafoid Inc., announced today Grafoid’s joint venture development agreement with Coquitlam, British Columbia-based CapTherm Systems Inc. to develop and commercialize next generation, multiphase thermal management systems for electric vehicle (EV) battery and light emitting diode (LED) technologies.

CapTherm Systems Inc – Progressive Thermal Management is a thermal management/cooling company specializing in personal computer, server, LED, and electric vehicle cooling systems. It develops and commercializes proprietary, next-generation high-power electronics cooling technologies.

Its multiphase cooling technologies represent the core of its products that harness the power of latent heat from vaporization.

Under the terms of the agreement, Grafoid Inc., a company invested in the production of high-energy graphene and the development of graphene industrial applications will supply both materials and its science for adapting graphene to CapTherm’s existing EV and LED cooling systems.

Focus Graphite is a Canadian company, you can find more information on their website and the same for Grafoid and SGS Canada, and CapTherm Systems.

I have previously mentioned Focus Graphite in a Nov. 27, 2012 posting about their deal with Hydro Québec’s research institute, IREQ. I have also mentioned graphite mining in Canada with regard to the Northern Graphite Corporation and its Bissett Creek mine (my July 25, 2011 posting and my Feb. 6, 2012 posting). Apparently, Canada has high quality, large graphic flakes.

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Waterloo Institute of Nanotechnology/EcoSynthetix industrial partnership and an interlaced relationship

Wednesday, March 13th, 2013

The EcoSynthetix and Waterloo Institute for Nanotechnology partnership announced today (Mar. 13, 2013) is an example of how tightly interlaced the relationships between academic institutions and their graduates’ start-up companies can be. A Mar. 13, 2013 news item on Nanowerk describes the partnership,

EcoSynthetix Inc. and the Waterloo Institute for Nanotechnology at the University of Waterloo have joined forces through an industrial partnership to collaborate on new applications for EcoSynthetix’ EcoSphere® technology. The five-year agreement will be jointly funded through an EcoSynthetix and NSERC (National Sciences and Engineering Research Council) Collaborative Research and Development Grant. The project matches the scientific expertise from the University of Waterloo in macromolecular science with the sustainability benefits of EcoSphere® bio-based nanoparticles which are based on green chemistry. The goal of the project is to broaden the scientific knowledge base of the EcoSphere® technology to support its introduction into new application areas.

The Mar. 13, 2013 EcoSynthetix news release, which originated the news item, mentions the relationship in passing while extolling the virtues of the partnership,

“As a global centre of excellence for nanotechnology research, this project represents a great opportunity for our institute, faculty and students at the University, to collaborate with a local innovator to further our understanding of the technology and its potential applications,” said Dr. Arthur J. Carty, Executive Director of the Waterloo Institute for Nanotechnology (“WIN”) and an independent director of the board of EcoSynthetix. [emphasis mine] “Nanotechnology is a leading-edge, enabling technology that holds the promise of a lasting economic benefit for jobs and investment in the materials, energy and healthcare sectors. EcoSynthetix’s innovative nanotechnology has the potential to impact a wide-array of markets that would benefit from a sustainable alternative to petroleum-based products.”

“This ECO-WIN collaboration involves four professors and eight graduate students at the Waterloo Institute for Nanotechnology and is a great example of how industry and universities can work together to advance an exciting new area of science to benefit the community,” said Dr. Steven Bloembergen, Executive Vice President, Technology of EcoSynthetix. “Our EcoSphere® technology is already commercial and providing sustainable benefits in three separate markets today. Our team’s primary focus at this stage is near-term product development and product enhancements of carbohydrate-based biopolymers. By working with the Institute of Nanotechnology to deepen our understanding of the basic science, we can identify new future applications that could benefit from our sustainable biobased materials.”

The EcoSphere® technology is being commercially utilized as biobased latex products providing alternatives to petroleum-based binders in the coated paper and paperboard market. [emphasis mine] The goal of this project is to generate a greater understanding of the properties of EcoSphere® biolatex® binders by establishing a knowledge base that could enable tailor-made novel particles with the desired properties for a given application. The project team will be chemically modifying the nanoparticles and then characterizing how the properties of the novel particles are affected by these changes.

I don’t understand what “independent director” means in this context. Is the term meant to suggest that it’s a coincidence Carty is WIN’s executive director and a member of the EcoSynthetix board? Or, does it mean that he’s not employed by the company? If any readers care to clarify the matter, please do leave a comment. In any event, the EcoSynthetix timeline suggests the company has a close relationship with the University of Waterloo as it was founded in 1996 by graduates  (from the company’s About Us History Timeline webpage),

EcosynthetixTimeline

As for the product line which birthed this partnership, there’s a disappointing lack of technical detail about Ecosphere biolatex binders. Here’s the best I can find on the company website (from the Ecosphere Biolatex Binders Performance page),

The smaller particle size characteristic of biolatex binders results in increased binder strength and performance. In coated paper, it provides improved aesthetics; a rich, bright finish; enhanced open structure and excellent printability across all grades.

I wonder if some of this new work will be focused on ways to use CNC (cellulose nanocrytals or NCC, nanocrystalline cellulose) in addition to the company’s previously developed “bio-based nanoparticles”  to enhance the product which, as I highlighted earlier, sells to the “coated paper and paperboard market.” From the CelluForce (the CNC/NCC production plant in Quebec) Applications page,

NCC’s properties and many potential forms enable many uses, including:

  • Biocomposites for bone replacement and tooth repair
  • Pharmaceuticals and drug delivery
  • Additives for foods and cosmetics
  • Improved paper and building products
  • Advanced or “intelligent” packaging
  • High-strength spun fibres and textiles
  • Additives for coatings, paints, lacquers and adhesives
  • Reinforced polymers and innovative bioplastics
  • Advanced reinforced composite materials
  • Recyclable interior and structural components for the transportation industry
  • Aerospace and transportation structures
  • Iridescent and protective films
  • Films for optical switching
  • Pigments and inks
  • Electronic paper printers
  • Innovative coatings and new fillers for papermaking

Since I’m already speculating, I will note I’ve had a couple of requests for information on how to access NCC/CNC from entrepreneurs who’ve not been successful at obtaining the material from the few existing production plants such as CelluForce and the one in the US. It seems only academics can get access.

One last comment about this ‘partnership’, I’d dearly love to know what relationships, if any exist, between the proponents and the NSERC committee which approved the funding.

Interestingly, Carty is the chair for the recently convened expert panel for the Council of Canadian Academies’ The State of Canada’s Science Culture assessment, as per my Dec. 19, 2012 post about the announcement of his appointment. This latest development casts a new light on the panel (my Feb. 22, 2013 post notes my reaction to the expert panel’s membership) and the meaning of science culture in Canada.

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Posted in business, coatings, forestry, nanotechnology, science policy | No Comments »

Computer simulation errors and corrections

Thursday, January 3rd, 2013

In addition to being a news release, this is a really good piece of science writing by Paul Preuss for the Lawrence Berkeley National Laboratory (Berkeley Lab), from the Jan. 3, 2013 Berkeley Lab news release,

Because modern computers have to depict the real world with digital representations of numbers instead of physical analogues, to simulate the continuous passage of time they have to digitize time into small slices. This kind of simulation is essential in disciplines from medical and biological research, to new materials, to fundamental considerations of quantum mechanics, and the fact that it inevitably introduces errors is an ongoing problem for scientists.

Scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have now identified and characterized the source of tenacious errors and come up with a way to separate the realistic aspects of a simulation from the artifacts of the computer method. …

Here’s more detail about the problem and solution,

How biological molecules move is hardly the only field where computer simulations of molecular-scale motion are essential. The need to use computers to test theories and model experiments that can’t be done on a lab bench is ubiquitous, and the problems that Sivak and his colleagues encountered weren’t new.

“A simulation of a physical process on a computer cannot use the exact, continuous equations of motion; the calculations must use approximations over discrete intervals of time,” says Sivak. “It’s well known that standard algorithms that use discrete time steps don’t conserve energy exactly in these calculations.”

One workhorse method for modeling molecular systems is Langevin dynamics, based on equations first developed by the French physicist Paul Langevin over a century ago to model Brownian motion. Brownian motion is the random movement of particles in a fluid (originally pollen grains on water) as they collide with the fluid’s molecules – particle paths resembling a “drunkard’s walk,” which Albert Einstein had used just a few years earlier to establish the reality of atoms and molecules. Instead of impractical-to-calculate velocity, momentum, and acceleration for every molecule in the fluid, Langevin’s method substituted an effective friction to damp the motion of the particle, plus a series of random jolts.

When Sivak and his colleagues used Langevin dynamics to model the behavior of molecular machines, they saw significant differences between what their exact theories predicted and what their simulations produced. They tried to come up with a physical picture of what it would take to produce these wrong answers.

“It was as if extra work were being done to push our molecules around,” Sivak says. “In the real world, this would be a driven physical process, but it existed only in the simulation, so we called it ‘shadow work.’ It took exactly the form of a nonequilibrium driving force.”

They first tested this insight with “toy” models having only a single degree of freedom, and found that when they ignored the shadow work, the calculations were systematically biased. But when they accounted for the shadow work, accurate calculations could be recovered.

“Next we looked at systems with hundreds or thousands of simple molecules,” says Sivak. Using models of water molecules in a box, they simulated the state of the system over time, starting from a given thermal energy but with no “pushing” from outside. “We wanted to know how far the water simulation would be pushed by the shadow work alone.”

The result confirmed that even in the absence of an explicit driving force, the finite-time-step Langevin dynamics simulation acted by itself as a driving nonequilibrium process. Systematic errors resulted from failing to separate this shadow work from the actual “protocol work” that they explicitly modeled in their simulations. For the first time, Sivak and his colleagues were able to quantify the magnitude of the deviations in various test systems.

Such simulation errors can be reduced in several ways, for example by dividing the evolution of the system into ever-finer time steps, because the shadow work is larger when the discrete time steps are larger. But doing so increases the computational expense.

The better approach is to use a correction factor that isolates the shadow work from the physically meaningful work, says Sivak. “We can apply results from our calculation in a meaningful way to characterize the error and correct for it, separating the physically realistic aspects of the simulation from the artifacts of the computer method.”

You can find out more in the Berkeley Lab news release, or (H/T)  in the Jan. 3, 2013 news item on Nanowerk, or you can read the paper,

“Using nonequilibrium fluctuation theorems to understand and correct errors in equilibrium and nonequilibrium discrete Langevin dynamics simulations,” by David A. Sivak, John D. Chodera, and Gavin E. Crooks, will appear in Physical Review X (http://prx.aps.org/) and is now available as an arXiv preprint at http://arxiv.org/abs/1107.2967.

This casts a new light on the SPAUN (Semantic Pointer Architecture Unified Network) project, from Chris Eliasmith’s team at the University of Waterloo, which announced the most  successful attempt (my Nov. 29, 2012 posting) yet to simulate a brain using virtual neurons. Given the probability that Eliasmith’s team was not aware of this work from the Berkeley Lab, one imagines that once it has been integrated that SPAUN will be capable of even more extraordinary feats.

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CelluForce in Brazil at workshop on nanotechnology

Wednesday, December 5th, 2012

The first Brazil-Canada Workshop on Nanotechnology will be taking place in São Paulo, Brasil, Dec. 6-7, 2012 and Dr. Richard Berry of Canada’s CelluForce (developer of nanocrystalline cellulose or cellulose nanocrystals as the product is also known) will be presenting.

Here’s a bit more about the Brazil-Canada meeting from its home page,

The 1st Brazil-Canada Workshop on Nanotechnology Gathers scientists, researchers, government and industry to discuss the possibilities of Brazil-Canada cooperation on Nanotechnology. The main institutions participating on the event are the Waterloo Institute for Nanotechnology (WIN) , the National Center for Energy and Materials Research (CNPEM), the Institute for Energy and Nuclear Research (IPEN). The special guest institution is the National Renewable Energy Lab (NREL), from U. S.

The Dec. 3, 2012 CelluForce news release provides details about Dr. Berry’s presentation, which is titled Nanomaterials From Trees – Harnessing The Power of Nature’s Basic Elements,

CelluForce, the world leader in the commercial development of NanoCrystalline Cellulose (NCC), also referred to as Cellulose Nanocrystals (CNC), is participating in the first Brazil-Canada workshop on nanotechnology  in Sao Paulo, Brazil on Thursday, December 6, 2012.  Richard Berry, Vice-President and Chief Technology Officer of CelluForce, will provide an overview of the current knowledge of NCC including the state of development, potential applications as well as health and safety practices.

This workshop, organized by Nanotechnology Coordination at the Brazilian Ministry for Science Technology and Innovation and the Energy and Nuclear Research National Institute (IPEN), aims to identify prospective nanotechnology projects where Brazil and Canada can cooperate. Distinguished members from industry and academia will share their knowledge and expectations on the subject.

You can find abstracts for some of the other presenters (Fernando Galembeck, Director of LNNano, Brazil; Michael K.C. Tam, Department of Chemical Engineering and Waterloo Institute for Nanotechnology, University of Waterloo, Canada; and Dr. Jennifer Flexman, advancing research and development, industrial collaboration and commercialization, University of Toronto, Canada) here.

ETA Dec.5.12 1325 hours PST: I think someone tried to send me some additional information about this meeting. Unfortunately, I deleted the message as spam before I realized what I was reading. The spam filter is usually pretty good but this happens every once in a while. If you’re inclined please do e-mail (nano@frogheart.ca) with the info. & I will add it.

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Posted in nanotechnology | 1 Comment »

University of Waterloo researchers use 2.5M (virtual) neurons to simulate a brain

Thursday, November 29th, 2012

I hinted about some related work at the University of Waterloo earlier this week in my Nov. 26, 2012 posting (Existential risk) about a proposed centre at the University of Cambridge which would be tasked with examining possible risks associated with ‘ultra intelligent machines’.  Today (Science (magazine) published an article about SPAUN (Semantic Pointer Architecture Unified Network) [behind a paywall])and its ability to solve simple arithmetic and perform other tasks as well.

Ed Yong writing for Nature magazine (Simulated brain scores top test marks, Nov. 29, 2012) offers this description,

Spaun sees a series of digits: 1 2 3; 5 6 7; 3 4 ?. Its neurons fire, and it calculates the next logical number in the sequence. It scrawls out a 5, in legible if messy writing.

This is an unremarkable feat for a human, but Spaun is actually a simulated brain. It contains2.5 millionvirtual neurons — many fewer than the 86 billion in the average human head, but enough to recognize lists of numbers, do simple arithmetic and solve reasoning problems.

Here’s a video demonstration, from the University of Waterloo’s Nengo Neural Simulator home page,

The University of Waterloo’s Nov. 29, 2012 news release offers more technical detail,

… The model captures biological details of each neuron, including which neurotransmitters are used, how voltages are generated in the cell, and how they communicate. Spaun uses this network of neurons to process visual images in order to control an arm that draws Spaun’s answers to perceptual, cognitive and motor tasks. …

“This is the first model that begins to get at how our brains can perform a wide variety of tasks in a flexible manner—how the brain coordinates the flow of information between different areas to exhibit complex behaviour,” said Professor Chris Eliasmith, Director of the Centre for Theoretical Neuroscience at Waterloo. He is Canada Research Chair in Theoretical Neuroscience, and professor in Waterloo’s Department of Philosophy and Department of Systems Design Engineering.

Unlike other large brain models, Spaun can perform several tasks. Researchers can show patterns of digits and letters the model’s eye, which it then processes, causing it to write its responses to any of eight tasks.  And, just like the human brain, it can shift from task to task, recognizing an object one moment and memorizing a list of numbers the next. [emphasis mine] Because of its biological underpinnings, Spaun can also be used to understand how changes to the brain affect changes to behaviour.

“In related work, we have shown how the loss of neurons with aging leads to decreased performance on cognitive tests,” said Eliasmith. “More generally, we can test our hypotheses about how the brain works, resulting in a better understanding of the effects of drugs or damage to the brain.”

In addition, the model provides new insights into the sorts of algorithms that might be useful for improving machine intelligence. [emphasis mine] For instance, it suggests new methods for controlling the flow of information through a large system attempting to solve challenging cognitive tasks.

Laura Sanders’ Nov. 29, 2012 article for ScienceNews suggests that there is some controversy as to whether or not SPAUN does resemble a human brain,

… Henry Markram, who leads a different project to reconstruct the human brain called the Blue Brain, questions whether Spaun really captures human brain behavior. Because Spaun’s design ignores some important neural properties, it’s unlikely to reveal anything about the brain’s mechanics, says Markram, of the Swiss Federal Institute of Technology in Lausanne. “It is not a brain model.”

Personally, I have a little difficulty seeing lines of code as ever being able to truly simulate brain activity. I think the notion of moving to something simpler (using fewer neurons as the Eliasmith team does) is a move in the right direction but I’m still more interested in devices such as the memristor and the electrochemical atomic switch and their potential.

Blue Brain Project

Memristor and artificial synapses in my April 19, 2012 posting

Atomic or electrochemical atomic switches and neuromorphic engineering briefly mentioned (scroll 1/2 way down) in my Oct. 17, 2011 posting.

ETA Dec. 19, 2012: There was an AMA (ask me anything) session on Reddit with the SPAUN team in early December, if you’re interested, you can still access the questions and answers,

We are the computational neuroscientists behind the world’s largest functional brain model

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Posted in science, science philosophy | 2 Comments »

Existential risk

Monday, November 26th, 2012

The idea that robots of one kind or another (e.g. nanobots eating up the world and leaving grey goo, Cylons in both versions of Battlestar Galactica trying to exterminate humans, etc.) will take over the world and find humans unnecessary  isn’t especially new in works of fiction. It’s not always mentioned directly but the underlying anxiety often has to do with intelligence and concerns over an ‘explosion of intelligence’. The question it raises,’ what if our machines/creations become more intelligent than humans?’ has been described as existential risk. According to a Nov. 25, 2012 article by Sylvia Hui for Huffington Post, a group of eminent philosophers and scientists at the University of Cambridge are proposing to found a Centre for the Study of Existential Risk,

Could computers become cleverer than humans and take over the world? Or is that just the stuff of science fiction?

Philosophers and scientists at Britain’s Cambridge University think the question deserves serious study. A proposed Center for the Study of Existential Risk will bring together experts to consider the ways in which super intelligent technology, including artificial intelligence, could “threaten our own existence,” the institution said Sunday.

“In the case of artificial intelligence, it seems a reasonable prediction that some time in this or the next century intelligence will escape from the constraints of biology,” Cambridge philosophy professor Huw Price said.

When that happens, “we’re no longer the smartest things around,” he said, and will risk being at the mercy of “machines that are not malicious, but machines whose interests don’t include us.”

Price along with Martin Rees, Emeritus Professor of Cosmology and Astrophysics, and Jaan Tallinn, Co-Founder of Skype, are the driving forces behind this proposed new centre at Cambridge University. From the Cambridge Project for Existential Risk webpage,

Many scientists are concerned that developments in human technology may soon pose new, extinction-level risks to our species as a whole. Such dangers have been suggested from progress in AI, from developments in biotechnology and artificial life, from nanotechnology, and from possible extreme effects of anthropogenic climate change. The seriousness of these risks is difficult to assess, but that in itself seems a cause for concern, given how much is at stake. …

The Cambridge Project for Existential Risk — a joint initiative between a philosopher, a scientist, and a software entrepreneur — begins with the conviction that these issues require a great deal more scientific investigation than they presently receive. Our aim is to establish within the University of Cambridge a multidisciplinary research centre dedicated to the study and mitigation of risks of this kind.

Price and Tallinn co-wrote an Aug. 6, 2012 article for the Australia-based, The Conversation website, about their concerns,

We know how to deal with suspicious packages – as carefully as possible! These days, we let robots take the risk. But what if the robots are the risk? Some commentators argue we should be treating AI (artificial intelligence) as a suspicious package, because it might eventually blow up in our faces. Should we be worried?

…

Asked whether there will ever be computers as smart as people, the US mathematician and sci-fi author Vernor Vinge replied: “Yes, but only briefly”.

He meant that once computers get to this level, there’s nothing to prevent them getting a lot further very rapidly. Vinge christened this sudden explosion of intelligence the “technological singularity”, and thought that it was unlikely to be good news, from a human point of view.

Was Vinge right, and if so what should we do about it? Unlike typical suspicious parcels, after all, what the future of AI holds is up to us, at least to some extent. Are there things we can do now to make sure it’s not a bomb (or a good bomb rather than a bad bomb, perhaps)?

It appears Price, Rees, and Tallinn are not the only concerned parties, from the Nov. 25, 2012 research news piece on the Cambridge University website,

With luminaries in science, policy, law, risk and computing from across the University and beyond signing up to become advisors, the project is, even in its earliest days, gathering momentum. “The basic philosophy is that we should be taking seriously the fact that we are getting to the point where our technologies have the potential to threaten our own existence – in a way that they simply haven’t up to now, in human history,” says Price. “We should be investing a little of our intellectual resources in shifting some probability from bad outcomes to good ones.”

Price acknowledges that some of these ideas can seem far-fetched, the stuff of science fiction, but insists that that’s part of the point.

According to the Huffington Post article by Lui, they expect to launch the centre next year (2013). In the meantime, for anyone who’s looking for more information about the ‘intelligence explosion’ or  ‘singularity’ as it’s also known, there’s a Wikipedia essay on the topic.  Also, you may want to stay tuned to this channel (blog) as I expect to have some news about an artificial intelligence project based at the University of Waterloo (Ontario, Canada) and headed by Chris Eliasmith at the university’s Centre for Theoretical Neuroscience, later this week.

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Posted in robots, science, science philosophy | 1 Comment »

Big bash in Waterloo for the new Quantum Nano Centre (QNC)

Tuesday, September 25th, 2012

The Quantum Nano Centre (QNC), which was officially opened on Sept. 21, 2012 and mentioned in my Sept. 13, 2012 posting, is enjoying quite the publicity bonanza. Even the architects are getting in on the action as per the Sept. 25, 2012 news item on Nanowerk,

Opening ceremonies were held last week in Waterloo for Canada’s new ‘mind space’, the Mike and Ophelia Lazaridis Quantum Nano Centre (QNC). The massive 26,010-square-metre Centre at the University of Waterloo, designed by Kuwabara Payne McKenna Blumberg (KPMB) is a showcase for Canadian innovation and industry in the fields of quantum computing and nanotechnology – the first of its kind in the world to bring together the two disciplines under one roof.

…

“Breakthrough science is advancing at dizzying speed today, with quantum physics at atomic and sub-atomic scale”, said Mike Lazaridis, founder of the Centre, “Simultaneously, rapid movement is happening in nanotechnology, where fabrication of materials, devices and systems 100 nanometres or smaller is being explored. This critical nexus of quantum computing and nanotechnology brings the world closer to the cusp of previously unimagined solutions and insights.”

…

The Quantum Nano Centre was conceptually inspired by the famed Newton Institute in Cambridge, U.K. IQC and Nanotechnology Engineering each occupy their own building and are joined by a six-storey central atrium which acts as an indoor pedestrian route and an informal gathering space. The design organizes ‘mind spaces’ – lounges, offices and meeting rooms – around the edge of the atrium where interdisciplinary interaction can flourish.

…

KPMB took an Integrated Design Team Approach to the project. As Mitchell Hall, KPMB Design Architect and Principal-in-Charge led the design team said. “We first engaged researchers, both theorists and experimentalists, in deep discussions to understand the ways and patterns of their work. This advance research later provided the groundwork for the development of the interior and exterior of the complex.”

Designed to meet stringent scientific standards – with controls for vibration, temperature fluctuation and electromagnetic radiation – the facility is of the highest international caliber. One of the signature features of the facility is a 929-square-metre cleanroom with fabrication facilities for quantum and nanodevices, as well as an advanced metrology suite, extensive teaching and research laboratories.

The exterior is distinguished by a hexagonal honeycomb lattice of structural steel, a pattern inspired by the stable hexagonal carbon structure of the nanotube. The podium of the building is clad with burnished concrete block to relate to the primarily masonry fabric of the University of Waterloo.

I found an image of the new centre on the Canada Foundation for Innovation website, where that federal government agency also gets in on the party,

Quantum Nano Centre (QNC) in Waterloo, Ontario

Stephen Strauss in his Sept. 20, 2012 article for the Canada Foundation for Innovation suggests,

Take one look at the honeycomb facade of the Mike & Ophelia Lazaridis Quantum-Nano Centre at the University of Waterloo, and you get a sense that the place will be a hive of activity.

Indeed, the 285,000-square-foot facility, which opened September 21, will be buzzing with 50 researchers, more than 100 graduate students and some 500 undergraduates. Together, these bright minds will conduct the kind of research for which the university has already become world famous — such as research that aims to replace the traditional silicon-based computer with a cutting-edge quantum computer.

Although still on the drawing board, quantum computers hold promise as the new frontier of superfast computing power. Quantum computers rely on quantum physics and atomic and subatomic particles to create computing power that is much more advanced than the bits and bytes and semiconductors used in today’s computers. Many physicists and computer scientists believe that quantum computers capable of processing vast amounts of data at extremely high speeds could be developed within the next decade. However, working in the quantum and nano realm is tricky business, so structural stability and temperature control had to be carefully considered in the design of the new Centre.

“You have to design an entire building where one atom won’t accidentally bump into another,” [emphasis mine] says Raymond Laflamme, executive director of the Institute for Quantum Computing (IQC) which, along with the Institute for Nanotechnology and the Nanotechnology Engineering program, is moving into the Centre. This is a mighty task when the distance between atoms is only about 1/50,000th the width of a human hair.

I don’t understand Laflamme’s comment about one atom accidentally bumping into another. Perhaps it will make more sense after reading Laflamme’s Sept. 20, 2012 article about a symphony, Quantum: Music at the Frontier of Science, which was premiered in Kitchener (it’s near Waterloo), Ontario in February 2012 and is being remounted for a Sept. 30, 2012 performance in honour of the QNC opening. From Laflamme’s article,

For two evenings last February, the symphony played the concert to sold-out audiences at Kitchener’s Conrad Centre for the Performing Arts.  On September 30 — as part of the grand opening celebrations of the Mike & Ophelia Lazaridis Quantum-Nano Centre at the University of Waterloo — we will host the concert again inside the remarkable new building.

With music, visuals and unique “sound experiments,” the concert gives audiences a guided tour along the parallel paths taken by music and quantum science over the past century. From Mozart to Xenakis — and from Newton to Hawking — the concert explores the many unexpected intersections between music and science.

More than a year of planning went into the concert. KW [Kitchener-Waterloo]  Symphony Music Director Edwin Outwater spent many hours with IQC [Institute for Quantum Computing] researchers and staff, wrapping his head around the concerts. He and IQC communications officer Colin Hunter collaboratively wrote a script for the concert, which is performed during the live concerts by a narrator. During the February performances, I joined Edwin onstage several times to talk about the scientific concepts being expressed through the music.

Creating the concert was a revelatory experience.  Too often, it is assumed that science and art are completely separate spheres of human endeavour, but this just isn’t so.

“There are two kinds of truth,” our narrator said during the concert, quoting novelist Raymond Chandler [known for his fictional detective, Philip Marlow, and for writing the novel, The Big Sleep, amongst many others]. “The truth that lights the way, and the truth that warms the heart. The first of these is science, and the second is art.”

Science and art share a common goal — to help us understand our universe and ourselves.  Research at IQC aims to provide important new understanding of nature’s building blocks, and devise methods to turn that understanding into technologies beneficial for society.Since founding IQC a decade ago, I have sought ways to bridge science and the arts, with the belief that scientific discovery itself is a source of beauty and inspiration.  Our collaboration with the Kitchener-Waterloo Symphony was an example — one of many yet to come — of how science and the arts provide different but complementary insights into our universe and ourselves.

I have included a ‘making of …’ video for this symphony, which is, unfortunately, approximately 18 mins. in length (I don’t usually embed anything much over five minutes),

Neither Laflamme’s article nor the ‘making of …’ video helped me to understand that business of constructing a building where atoms don’t accidentally bump into each other. Perhaps I’ll get lucky and somebody who knows will leave a comment.

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Quantum-Nano Centre (QNC) opening Sept. 21, 2012 at the University of Waterloo (Canada)

Thursday, September 13th, 2012

Gary Thomas’ Sept. 13, 2012 news item for Azonano provides some facts about the new centre at the University of Waterloo,

The University of Waterloo has reported that the Mike & Ophelia Lazaridis Quantum-Nano Centre (QNC) will be officially opened on September 21, 2012, in the new building at the center of the university campus.

The Waterloo Institute for Nanotechnology (WIN) and the Institute for Quantum Computing (IQC) will share QNC, a 285,000-square-foot facility for future innovation in nanotechnology and quantum information. QNC will provide the equipment and collaborative opportunities to researchers to carry out pioneering experiments, explore new materials and processes and develop advanced technologies.

You can find more details on Azonano or in the fulsome Sept. 11, 2012 University of Waterloo news release by Christian Aagaard,

It’s a curious building for curious people, supported by an entrepreneur driven by curiosity.

The Mike & Ophelia Lazaridis Quantum-Nano Centre on the main campus of the University of Waterloo is ready for its starring role — a gateway to a future shaped by incredibly small devices, advanced materials and powerful technologies based on the laws of quantum mechanics.

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University of Waterloo Canada Research for Nanotechnology

Monday, March 26th, 2012

The University of Waterloo’s (Ontario, Canada), Professor Linda Nazar of the Waterloo Institute for Nanotechnology (Note: Website say ‘for’ but the news item states ‘of’.) just had her position as a Canada Research Chair renewed and consequently received a grant of $1.4M for her work in alternative energy. From the March 23, 2012 news item on Nanowerk,

The six Canada Research Chairs from the University of Waterloo included a CRC in Solid State Energy Materials, going to Professor Linda Nazar, Waterloo Institute of Nanotechnology. She receives $1.4 million over seven years (Renewal). Research: One of the greatest challenges to the sustainable energy field is adequate storage. For 15 years, Nazar has focused her research on developing new materials to store and deliver energy at a high rate. This ongoing work is exploring the potential of nanotechnology to improve rechargeable batteries, like those used in plug-in hybrid vehicles.

For anyone not familiar with the funding programme (from the news item),

Canada Research Chairs is a federally funded program that is part of a strategy to make Canada one of the top research and development countries in the world. The program invests $300 million annually to attract and retain to top researchers in the world.

The Nazar Group lab can be found here. Excerpted from the Group’s home page,

Research Interests:

§     Design of nanomaterials for energy storage, conversion and delivery applications

§     Materials solid state chemistry and nanotechnology

§     Li-ion and lithium batteries; fuel cells; supercapacitors; hydrogen storage materials

§     Fundamental solid state chemistry & structure-property relationships

§     Mesoporous and nanoporous materials

Professor Linda Nazar is a faculty member of the Department of  Chemistry at the University of Waterloo, and is cross appointed  to the Department of Electrical Engineering. Prof. Nazar, holder  of a Tier 1 Canada Research Chair in Solid State Materials since 2004, has focused her research on developing new materials for energy storage and conversion for the past 15 years. She has published well over 100 papers, review articles and patents in the field which are cited on average over 125 times each year.

Congratulations!

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