Navigation Links
Penn research helps lay out theory for metamaterials that act as an analog computer
Date:1/9/2014

rea Al of The University of Texas at Austin and Giuseppe Castaldi and Vincenzo Galdi of the University of Sannio in Italy.

It was published in the journal Science.

The researchers' theory has its roots in analog computing. The predecessors of modern computers were mechanical calculators, which used physical elements, ranging from sliding rulers to complex arrays of gears and drive shafts, to represent, store and manipulate numerical information. In the most complicated examples, a user might set the starting values to be computed on a wheel or dial, and then crank a handle a certain number of times. Intervening sets of gears transformed the starting values in a step-wise fashion until the results were produced. In the mid-20th century, electronic analog computers replaced the mechanical ones, with series of resistors, capacitors, inductors and amplifiers taking the place of gears and drive shafts. Starting values were represented by electric voltage and current, and the results could be read out from the changes in voltage and current after passing through these dedicated circuits.

Both mechanical and electronic analog computers were particularly suited to calculating large tables of information. Where the paper-and-pencil method would require tedious and repetitious steps performed on each of the table's elements, with each step prone to human error, analog computers could perform those steps in parallel, producing the results all at once.

The advent of the first all-purpose, digital computer Penn's ENIAC was revolutionary; abstracting the input data allowed digital computers to be multi-purposed. They could be reprogramed to perform multiple types of calculations, unlike their purpose-built analog predecessors. Though analog computers still had an advantage in not having to translate, quantize and digitize the information they were calculating, their mechanical and electronic makeup could not compete with the a
'/>"/>

Contact: Evan Lerner
elerner@upenn.edu
215-573-6604
University of Pennsylvania
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology technology :

1. Louisiana’s First Clinical Data Research Network to Be Developed Through PCORI Funding
2. Capsugel’s Bend Research to Present New Processes for Flu Vaccine and Other Science Advancements at Upcoming Industry Meetings
3. New Insights on the Decline of Research and Development in Pharma & Biotech
4. New Jersey Health Foundation President Addresses Panel at AAHC Research Efficiency Conference
5. Cardio3 BioSciences, a European biopharmaceutical company, now covered by Edison Investment Research
6. Nanomedicine Market is Expected to Reach USD 177.60 Billion Globally in 2019: Transparency Market Research
7. Elsevier Launches the New Generation SciVal, Providing Dynamic Real-Time Analytics and Insights into the Global Research Landscape
8. Paraformaldehyde Industry 2014 Global & China Development Analysis in a New Research Study Available at DeepResearchReports.com
9. Researchers find that computer components can be damaged by key manufacturing processes
10. PCCI Collaborates With UTSW On Top National Research Grants Totaling Over $30 Million
11. Greater ChiChina Chain Catering Industry Report, 2013-2016 Available at Marketresearchreports.biz
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Penn research helps lay out theory for metamaterials that act as an analog computer
(Date:8/20/2014)... (PRWEB) August 20, 2014 The ... is being held on October 29-30 in San Francisco, ... industry, academic and government researchers and clinicians focused on ... space. , In the twelve years since the ... therapies have been introduced with pharmacogenetic information in the ...
(Date:8/20/2014)... GraphDB™ 6.0 from ... to the enterprise replication cluster, faster loading speeds, ... and Elasticsearch. This release happens to coincide with ... – GraphDB™ was formerly known as OWLIM. ... mature enterprise resilient RDF triplestore will also benefit ...
(Date:8/19/2014)... Cellgen Diagnostics today launched ... a corporate lab for its genetic-based medical testing ... a critical component in the move from today’s ... of personalized medicine – a more predictive, preventive, ... contributions will support Cellgen’s intent to develop the ...
(Date:8/19/2014)... BURNIE, Md. , Aug. 19, 2014 ... clinical research industry, recently announced the formation of the ... pleased to announce the addition of Dr. William ... Photo - http://photos.prnewswire.com/prnh/20140818/136957 The ... across a variety of therapeutic areas and set strategic ...
Breaking Biology Technology:6th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 3CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3
... , MONTRÉAL, Jan. 19 /PRNewswire-FirstCall/ - ... established a Special Committee of independent Board members to explore ... a sale of the Company or the sale of all ... be working with management and external consultants to expeditiously make ...
... ... of integration, functionality, innovation, manageability, performance and value provided to end users. , ... (PRWEB) January 19, 2010 ... Silver Award for Virtualization Management. This annual award identifies the companies ...
... NEW HAVEN, Conn. , Jan. 19 ... Richard J. Carroll to the newly created position ... HistoRx over 20 years of sales, marketing, research, and general ... Before joining HistoRx in 2009, he was Vice President of ...
Cached Biology Technology:ConjuChem to evaluate strategic alternatives 2VKernel's Optimization Pack Wins Award In SearchServerVirtualization.Com's 2009 Products of the Year Survey 2HistoRx Names Dick Carroll, Ph.D. as VP of Clinical Research 2HistoRx Names Dick Carroll, Ph.D. as VP of Clinical Research 3
(Date:8/20/2014)... and plastic bags could one day be made out ... scientists are now reporting. The novel process they developed ... with its agricultural and plastic waste problems, appear in ... Ilker S. Bayer and colleagues at the Italian Institute ... growing. In 2012, its production reached 288 million tons ...
(Date:8/20/2014)... light and its energy is finally utilized for ... devices, mostly build from silicon based semiconductors, also ... for the development of cheaper and renewable photovoltaics ... membrane protein complexes of photosynthesis. Prof. Dr. Matthias ... thermophilic cyanobacteria that live in a hot spring ...
(Date:8/19/2014)... systems be used in supermarkets to encourage healthier spending ... to answer that very question by tracking the purchasing ... Stars System to rate the nutritional value of foods ... Brand Lab,s David Just, PhD, and Brian Wansink PhD, ... records of over 150 Hannaford Supermarkets in the Northeastern ...
Breaking Biology News(10 mins):A semi-artificial leaf faster than 'natural' photosynthesis 2
... Inflammation of gum tissues periodontitis is one of ... susceptible to diseases of the circulatory system, rheumatoid arthritis, ... of Jan Potempa, PhD, DSc, professor and academic scholar, ... School of Dentistry, have helped change scientific thinking about ...
... Ore. -- A constellation of defective proteins suspected in causing ... DNA could be the link scientists need to prove a ... broad range of ovarian cancer patients, an Oregon Health & ... results, published this week in PLoS ONE , have ...
... DC - On January 18, 2012, Dr. Peter ... National Homeland Security Research Center in the Office ... Protection Agency, will lead a session titled "National ... national resilience to bioterrorism threats involves maximizing advanced ...
Cached Biology News:UofL researcher earns the Foundation for Polish Science Prize 2Faulty proteins may prove significant in identifying new treatments for ovarian cancer 2