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:10/30/2014)... in the development of quantum technologies has been proposed ... published today (28 October) in Nature Communications , ... a new type of flexibly designed microscopic trap for ... and specialised superfast computers, often depend on harnessing the ... these tiny particles are hugely problematic because of the ...
(Date:10/27/2014)... The new research report, “Gas Insulated Switchgear (GIS) ... & Secondary), and End-User (Transmission & Distribution, Manufacturing ... - Trends and Forecasts to 2019”, defines and ... of the market size. , Browse more than ... through 146 Pages and in-depth TOC on “Gas ...
(Date:10/27/2014)... 2014 Kalorama Information says that PCR is ... the United States and is ... researcher said the FDA,s Emergency Use Authorization (EUA) to authorize ... the detection of the Ebola virus was an indication ... assess the IVD industry and its biennial survey on ...
(Date:10/27/2014)... (PRWEB) October 27, 2014 Called ... reducing and eliminating several types of pediatric brain ... been achieved in over 30 years of research ... Light Foundation, proves that one mom's determination can ... just before Halloween trick-or-treating, and it’s only fitting ...
Breaking Biology Technology:Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4Kalorama: PCR The Go-to Test in Ebola Fight 2Kalorama: PCR The Go-to Test in Ebola Fight 3FDA Approves Breakthrough in Pediatric Brain Cancer - First in 30 Years 2FDA Approves Breakthrough in Pediatric Brain Cancer - First in 30 Years 3
... ATLANTA, Aug. 27 Alimera Sciences, Inc., today announced that ... which was originally completed in March 2008. In connection with this ... received warrants for an additional $10 million in Series C preferred stock. ... delivery of Phase III top-line data for Iluvien(R) to elect to exercise ...
... , , BOSTON, Aug. 27 The Center ... to announce their full agenda for the 3rd Annual ... Over 60 firms are already confirmed to gather in Philadelphia on ... discuss industry case examples for accounting for collaborations and transactions. Perspectives ...
... ... (a licensed manufacturer of clinical grade biological products as licensed by the State of California ... two of its latest scientific discoveries at the 2009 World Stem Cell Summit. , ... San Diego, CA (PRWEB) Aug 27, ...
Cached Biology Technology:Alimera Sciences Closes $5 Million in Extended Series C Financing 2Over 60 Firms Confirmed to Attend CBI's Third Annual Bio/Pharmaceutical Collaboration and Transaction Accounting Conference in September 2Stemedica Selected By World Stem Cell Summit To Present Scientific Discoveries 2Stemedica Selected By World Stem Cell Summit To Present Scientific Discoveries 3Stemedica Selected By World Stem Cell Summit To Present Scientific Discoveries 4
(Date:10/30/2014)... 30, 2014—Oligonucleotide-based therapeutics present unique challenges when it ... and developmental harm. New consensus guidelines for toxicity ... and biological characteristics of these novel biopharmaceuticals are ... peer-reviewed journal from Mary Ann Liebert, Inc. ... the Nucleic Acid Therapeutics website until ...
(Date:10/30/2014)... New York | Heidelberg, 30 October 2014 Biological ... a better understanding of adsorption of solution ions ... biological cells. Now, a new study provides a ... and surrounding solution ions. Joanna Kotyńska and Zbigniew ... the authors of a study describing these findings, ...
(Date:10/29/2014)... who lose their hair as a consequence of chemotherapy ... improve the scalp cooling technology that prevents hair loss. ... being pioneered by global scalp cooling manufacturing company, Paxman ... biology department of the University of Huddersfield. , The ... who has a background in the pharmacology of cancer ...
Breaking Biology News(10 mins):New guidelines for reproductive & developmental toxicity testing of oligonucleotide drugs 2Ion adsorption matter in biology 2New technology on the way to aid cancer suffers who lose their hair after chemotherapy 2
... Pharmaceuticals report this week that they have successfully used RNA ... mice, an advance that could lead to new treatments for ... 1998 discovery of RNA interference the naturally occurring phenomenon ... nucleus to the protein-building machinery of the cell is disrupted ...
... New Delhi, Singapore and Washington DC (Dec 28, 2010) ... identify with political parties , according to an article in ... official journal of the Western Political Science Association (published by ... studied concepts in modern political science. Scholars have long held ...
... spotlight that illuminates an otherwise dark scene, attention brings to ... A new study by researchers at the Salk Institute for ... that primarily had been known for its role in the ... the mind,s spotlight. Their findings, published in the Dec. ...
Cached Biology News:New RNA interference technique can silence up to 5 genes 2Seeing without looking 2
... deparaffinize and perform Heat Induced Antigen Retrieval ... mounted on glass microscope slides. Deparffinization is ... high temperature used in HIER (over 90degrees ... by detergent. Formaldehyde fixation impairs or totally ...
... designed to deparaffinize and perform Heat Induced ... tissue sections mounted on glass microscope slides. ... at the high temperature used in HIER ... the paraffin by detergent. Formaldehyde fixation impairs ...
...
...
Biology Products: