Friday, December 30, 2011

Hack Space

Hackerspace Global Grid

"As proposed on CCCamp11 we need our own infrastructure and space program. HGG's aim is to develop a modular antenna grid for satellite communication.
Vision: The hacker community needs a fallback infrastructure in case of natural and economic disaster to stay connected.
Long term goal: Design and build a modular terrestrial base-station for satellite communication. Based on open-source hard- and software as well as open standards.
Short term goal: Gain insight into the nature, protocols and security features of satellite <> earth communication. Build a working prototype of a modular receiver station with networking capabilities. Provide interfaces to existing high performance computing platforms (GPU-based and similar systems)."

Source
http://shackspace.de/wiki/doku.php?id=project:hgg
http://www.bbc.co.uk/news/technology-16367042

アート自由川: トレーラーでのPhysXのGPUのGeForce GTXの資源のデモンストレーション

アート自由川: トレーラーでのPhysXのGPUのGeForce GTXの資源のデモンストレーション: 主にハードウェアアクセラレーションのPhysXの効果を中心に、ビデオは、PhysXの効果が有効と無効の状態でゲームからいくつかのシーンを比較します。 http://wanartsci.blogspot.com

Demonstration of resources of gpu GeForce GTX with PhysX in Trailer

Primarily focusing on Hardware-Accelerated PhysX effects, the video compares several scenes from the game with PhysX effects enabled and disabled.

Twinkle - Real World game interface


Wednesday, December 28, 2011

Tip Article : Fluid Simulation for Games

Source: www.intel.com
"Video games appeal to our desire to explore and interact with our environment, and adding real-world phenomena-such as fluid motion-allows game developers to create immersive and fun virtual worlds. Recently, physical simulations have become more realistic, but the simulations have largely been limited to rigid bodies. Pervasive simulations of continuous media like cloth and fluids remain uncommon, largely because fluid dynamics entail conceptual and computational challenges that make simulating fluids difficult. This article begins a series that explains fluid dynamics and its simulation techniques. The series culminates in an example of a fluid simulation algorithm suitable for use in a video game." by Intel


In Intel webpage you can to see article about fluid simulation for games. The link for webpage be below.


Article "Fluid Simulation for Video Games"

Computer Graphics - GPU

List of links for GPU resources, books and development. And free ebooks about computer graphics and programming for GPU.
Source: www.nvidia.com

1. AMD Developer & GPUs
2. Intel Visual Computing
3. Nvidia Developer
4. Nvidia CG Tutorial
5. Nvidia GPU Programming Guide
6. Nvidia - GPU Gems Part I
7. Nvidia - GPU Gems Part II
8. Nvidia - GPU Gems Part III

Tutorial and Books about OpenCL

OpenCL(Open Computing Language) is a framework for writing programs for heterogeneous platforms consisting of CPUs, GPUs and others processors.
List texts, tutorial and books about OpenCL.


1. FixStars Free Online Book about OpenCL
2. Khronos - OpenCL - Especifications
3. http://www.hardware.com.br/dicas/opencl.html (português)
4. Nvidia OpenCL
5. Intel SDK OpenCL
6. AMD OpenCL
7. IBM OpenCL



(soon more resources. If you know some text, tutorial and free online book about opencl put your comment and tip.)

Tutorial about OpenGL

List of webpages with tutorial about opengl.

1. XOAX OpenGL (with video lectures tutorial)
2. NeHe
3. OpenGL Tutorial (portugues)
4. UCSS Tutorial OpenGL
5. http://www.lighthouse3d.com/
6. http://www.lighthouse3d.com/opengl/

Tuesday, December 27, 2011

Dicas: Criando redes Sociais e Banco de Dados

Neste post hoje publicarei algumas dicas de materiais sobre programação para web. Sendo mais especifico para criação de banco de dados com MySQL e criação redes sociais. Abaixo vê-se um video sobre a criação de redes sociais com o ELGG um framework gratuito que serve para implementação de redes sociais.

Elgg - Crie sua rede social - Vídeo 1 por weeby no Videolog.tv.

Mais informações pode serem vistas em um artigo em www.weeby.com.br

A dica de tutorial para banco de dados MySQL é um artigo bastante completo sobre o tema que pode ser visto no site Viva Linux.

Apostilas
 
0. Instalando Apache, MySQL e PHP no Debian Linux
1. Apostila de Html, CSS e Javascript
2. Java para Desenvolvimento Web
3. Apostila de Curso PHP MySQL Servidor de Banco de Dados
4. PHP MySQL Básico
5. SQL Magazine Apostilas
6. Apostilas de Linguagens usadas para Criar Sites 
7. Ebook gratuito sobre python (Python para Desenvolvedores. Inclui informações e dicas no uso de python na web)
8. www.python.org (Download do interpretador da linguagem python e documentação)
9. Python Brasil (Comunidade contendo dicas e tutoriais em português sobre python.)

Mais apostilas podem ser encontrarados pelo Google ou em www.apostilando.com.br

Recomendações: Para interessados em programação para web recomendo buscar tutoriais de html, javascript, php, mysql, java e python de acordo com suas necessidades interesses.

Espero que seja útil aos leitores. E quem tiver outras sugestões só enviar-me deixando seu comentário. Boas festas e bênçãos a todos.

Monday, December 26, 2011

Superhuman - Exoskeleton

"A powered exoskeleton, also known as powered armor, or exoframe, is a powered mobile machine consisting primarily of an exoskeleton-like framework worn by a person and a power supply that supplies at least part of the activation-energy for limb movement." (Source Wikipedia)

On September 23, 2010, Clark Gregg - the actor known for this recurring role as Agent Phil Coulson in Marvel Studios' Iron Man movies - visited the Raytheon Sarcos research lab in Salt Lake City, Utah (USA), for the unveiling of the company's wearable XOS 2 robotics suit...




Links 
Creepru.blogspot.com  (russian language)
Exoskeleton

Tuesday, December 20, 2011

GLUT Tutorial

GLUT Tutorial

Tutorial about library GLUT stand for OpenGL toolkit for graphics
application and computer graphics in http://www.lighthouse3d.com

MIT launches online learning initiative - MIT News Office

MIT launches online learning initiative - MIT News Office
"MIT today announced the launch of an online learning initiative internally called “MITx.” MITx will offer a portfolio of MIT courses through an online interactive learning platform that will:
  • organize and present course material to enable students to learn at their own pace
  • feature interactivity, online laboratories and student-to-student communication
  • allow for the individual assessment of any student’s work and allow students who demonstrate their mastery of subjects to earn a certificate of completion awarded by MITx
  • operate on an open-source, scalable software infrastructure in order to make it continuously improving and readily available to other educational institutions.
MIT expects that this learning platform will enhance the educational experience of its on-campus students, offering them online tools that supplement and enrich their classroom and laboratory experiences. MIT also expects that MITx will eventually host a virtual community of millions of learners around the world."

What is MITx? - MIT News Office

What is MITx? - MIT News Office

Wednesday, December 14, 2011

Google Open Source Blog: Students add to SymPy

Google Open Source Blog: Students add to SymPy: SymPy is a computer algebra system (CAS) written in pure Python. The core allows basic manipulation of expressions (like differentiation ...

Friday, December 9, 2011

String-theory calculations describe 'birth of the universe' - physicsworld.com

String-theory calculations describe 'birth of the universe' - physicsworld.com
 
Researchers in Japan have developed what may be the first string-theory model with a natural mechanism for explaining why our universe would seem to exist in three spatial dimensions if it actually has six more. According to their model, only three of the nine dimensions started to grow at the beginning of the universe, accounting both for the universe's continuing expansion and for its apparently three-dimensional nature.

Source: http://physicsworld.com

Tuesday, December 6, 2011

アート自由川: 科学者は生命にマンモスをもたらすことに近いです。

アート自由川: 科学者は生命にマンモスをもたらすことに近いです。: 日本とロシアの科学者たちは、シベリアのマンモスからDNAのサンプルです。材料は、研究者が可能な約12,000年前に絶滅した動物のクローニングを行うとなる、完璧だった。 しかし、プロジェクトは、クローン動物で何がなされるべきかについての倫理的な問題を提起する。さらに、もちろん、...

Monday, December 5, 2011

Python: Image Processing with numpy, PIL (Python Image LIbrary) and PythonMagick

Below an example code with numpy and PIL for manipulate image.
Create it code and save like blend.py in directory.

import numpy, Image
import os

"""Combine two image with a factor"""
def addImages(img1, img2, factor):
    #Convert to object type Image opened with Image.open(file) to array with numpy.
    M, N = numpy.array(img1), numpy.array(img2)
    #Type of value in M and N is uint8 that the type returned
    #by Image.open() when open and create the object image.
    A = M.astype('float')
    B = N.astype('float')
    #Combine the two images with the factor defined for user.
    I = (A+B)/factor
    #Return image. Before convert I in 'uint8' again and change
    #for from array to image.
    return Image.fromarray(I.astype('uint8'))

Examples for use of this module blend.py:

import blend
img1 =  Image.open(file_of_image)
img2 = Image.open(file_of_image)
#Resize image to ok combine.
I1 = img1.resize(x,y)
I2 = img2.resize(x,y)
#Combine with function in blend
I = blend.addImages(I1, I2, 2)
#Show image
I.show()
#Save your image created.
I.save(name_for_file_save)

Result bellow(the images that i use was get in wikimedia in wikipedia.org)



img1



img2


I - combine img1 and img2 with factor=2

For use PythonMagick,

import PythonMagick

#Open file of image
I = PythonMagick.Image("/home/wandeson/Imagens/pathera_onca.jpg")
#View image
I.display()
#Apply filter of oil paint
I.oilPaint(0.8)


The result for oil paint effect in image is bellow


Links for other examples, docs, sources: 
www.pythonware.com/products/pil/
http://numpy.scipy.org



Video: Nvidia - Introduction to CUDA 4.1

Thursday, November 24, 2011

ロシア人は、空気中の投影システムを作成する

会社のDisplairによって開発されたプロトタイプは、煙が上の画像を投影するクールミストフローを使用してください。


Russians create projection system in the air

A prototype developed by company Displair, you use cool mist flow to project images on the smoke.


Russos criam sistema de projeção no ar

Um prototipo desenvolvido pela empresa Displair, utiliza-se de fluxos de  névoa fria para fazer projeções de imagens sobre a fumaça.



GPUs Lend Special Effects To The Muppets



"They're still the same Muppets, but they're more animated than ever thanks to Look Effects and Quadro GPUs."

Wednesday, November 23, 2011

Livro: "A Arma Escarlate"

Livro: "A Arma Escarlate"

 
"A Arma Escarlate"
"A Arma Escarlate", da escritora Renata Ventura, trata-se de um livro de ficção e fantasia que foi lançado recentemente, no dia 18 pela editora Novo Século. Uma das curiosidades e que mostra o impacto da internet, e particularmente das redes sociais, sobre a cultura de um modo geral, é que é possível encontrar na rede social Facebook o perfil dos personagens Caimana e Viny por exemplo.

A história do livro se desenrola no ano de 1997. Onde durante um intenso tiroteio, em uma época das mais sangrentas da favela Santa Marta, um menino descobre que é bruxo. Vendo-se ameaçado, e sua familia, pelo chefe do tráfico o jovem decide perseguir um objetivo: aprender magia e voltar para enfrentar os bandidos.


Onde comprar "A Arma Escarlate"
"A Arma Escarlate" no Facebook

Free Online Courses

The Stanford University offered their most popular courses online and free.



This time they’re offering 7 computer science courses:

Computer Science 101 http://www.cs101-class.org/
Machine Learning (one of the offerings this past fall) http://jan2012.ml-class.org/
Software as a Service http://www.saas-class.org/
Human-Computer Interaction http://www.hci-class.org/
Natural Language Processing http://www.nlp-class.org/
Game Theory http://www.game-theory-class.org/
Probabilistic Graphical Models http://www.pgm-class.org/
Cryptography http://www.crypto-class.org/

And two entrepreneurship courses:
The Lean Launchpad http://www.launchpad-class.org/
Technology Entrepreneurship http://www.venture-class.org/

Source: http://www.uncollege.org/archives/1441

Monday, November 7, 2011

Material sobre Lógica Matemática e Computacional

Dica de textos e e-books sobre lógica. Lista de links abaixo.



1. UFRN - Lógica Computacional (UFRN João Marcos)
2. Lógica Proposicional
3. Lógica de Segunda Ordem


(Se você conhece links de sites com mais material contribua postando no comentário as recomendações enviadas serão acrescentadas neste post. Textos em outros idiomas também são permitidos. Contribua para disseminação do conhecimento. Obs.: Os textos devem ser de distribuição livre e permitida.)

Friday, November 4, 2011

TACES: Orca Linux

TACES: Orca Linux: Orca é um leitor de tela programável livre e de código aberto. Ele usa recursos de fala, braille e ampliação. O Orca ajuda a fornecer acess...

TACES: Orca Gnome - Accessibility

TACES: Orca Gnome - Accessibility: Orca screen reader is a programmable free and open source . It uses speech capabilities , braille , and magnification. Orca help...

Python tutorial

Python is an interpreted programming language and momentum that was created by Guido van Rossum in 1991 by combining a clear and concise syntax as well as being easy to learn. Despite its apparent simplicity has several features quite powerful and useful in many types of applications. You can find great tutorials and handouts for free download on the web. One is the Wikibook Python on Wikipedia.

Pythonチュートリアル

Pythonは習得が容易であるだけでなく、明確かつ簡潔な構文を組み合わせることにより、1991年にGuido van Rossum氏によって作成されたインタプリタプログラミング言語と勢いです。にもかかわらず、その見かけのシンプルさは、多くの種類のアプリケーションで非常に強力で便利な機能がいくつかあります。 あなたがWeb上で無料でダウンロードするための偉大なチュートリアルと配布資料を見つけることができます。一つは、ウィキペディア上WikibookのPythonです。

Tutorial Python

Python é uma linguagem de programação interpretada e dinâmica que foi criada por Guido Van Rossum em 1991 combinando uma sintaxe concisa e clara além de ser de fácil aprendizado. Apesar de sua aparente simplicidade possui diversos recursos bastante poderosos sendo útil em diversos tipos de aplicações.

Pode-se encontrar ótimos tutoriais e apostilas para download gratuito na web. Um deles é o Wikibook sobre Python da Wikipédia.

Thursday, October 20, 2011

Pythonに関するチュートリアル

Pythonに関するチュートリアル


"Python は簡単に習得でき、それでいて強力な言語の一つです。 Python は高レベルなデータ構造を効率的に実装していて、 オブジェクト指向プログラミングに対しても、単純ながら効果的なアプローチをとっています。 洗練された文法とデータ型を動的に決定する機能、そしてインタプリタであるという特徴から、 Python はほとんどのプラットフォームの幅広い対象領域において、 スクリプティングや迅速なアプリケーション開発のための理想的な言語になっています。
Pythonインタプリタ自体と膨大な標準ライブラリは、ソースコード形式や、 主要なプラットフォーム向けのバイナリ形式で、Python Web サイト http://www.python.org/ から無料で入手でき、かつ無料で再配布できます。 また、Python Webサイトでは、無料で手に入るたくさんのサードパーティ製 Python モジュールから、プログラム、ツール類、その他のドキュメントに至るまで、 配布物やポインタの情報を公開しています。
Python インタプリタは、 C 言語や C++ 言語 (あるいはその他の C 言語から呼び出せる言語) で実装された新たな関数やデータ構造を組み込んで簡単に拡張できます。 Python はまた、カスタマイズ可能なアプリケーションを作るための拡張機能記述言語としても適しています。
このチュートリアルでは、Python の言語仕様と仕組みについて、基本的な概念と機能をざっと紹介します。 Python インタプリタが手元にあれば、自分で試しながら学ぶ助けになりますが、 例題は全て明解なので、チュートリアルはオフラインでも十分読めます。
標準のオブジェクトやモジュールの記述については、 「Python ライブラリリファレンス (Python Library Reference)」を参照してください。 C 言語や C++ 言語で拡張モジュールを書くなら、「Python インタプリタの拡張と埋め込み (Extending and Embedding the Python Interpreter)」や 「Python/C API リファレンス (Python/C API Reference)」を参照してください。 他にも、 Python について広く深くカバーしている書籍はいくつかあります。
このチュートリアルは網羅的な内容を目指しているわけではありませんし、 Pythonの個別の機能や、よく使われる機能でさえ完全にカバーしてはいません。 その代わり、このチュートリアルではPythonの特筆すべき機能をたくさん紹介して、 この言語の持ち味やスタイルについて好印象を持ってもらうつもりです。 このチュートリアルを読んだ後には、読者のみなさんは Python のモジュールやプログラムを 読み書きできるようになり、「Python ライブラリリファレンス (Python Library Reference)」 に記述されているさまざまな Python ライブラリモジュールについて学べるようになるでしょう。"

List Ebooks and Tutorials about C and Fortran - Apostilas e tutoriais sobre C e Fortran - チュートリアル

Tutorials & Ebooks チュートリアル About/Sobre 

Fortran 90/95  チュートリアル
C/C++

Sunday, October 16, 2011

Dennis Ritchie - Bell Labs - Promotional Film Unix - 1980

"Segment from an AT&T Bell Labs (BTL) promotional film (circa 1980s) featuring UNIX creators Ken Thompson and Dennis Ritchie briefly explaining the UNIX environment. In cameo roles you'll see UNIX luminaries Greg Chesson (in the wine red shirt) and Doug McIlroy (to the foreground of Greg). Also featured is a classic ASR-33 Teletype, BLIT displays (developed by Rob Pike, then of the Labs as well), and much more."

Dennis Ritchie

OCW MIT - Artificial Intelligence

On the website of the MIT OCW project is possible to find material about artificial intelligence and some lessons. The links are below.





 

Artificial Intelligence - Spring 2005

Artificial Intelligence - Fall 2010

Inteligência Artificial - OCW MIT

No site do projeto OCW do MIT é possivel encontrar material sobre inteligência artificial e algumas lições. Os links estão abaixo.



Inteligência Artificial - Spring 2005
Inteligência Artificial - Fall 2010

Friday, October 7, 2011

Real Time Physics

List of links about physics simulations and computer graphics resources to can be see in page http://www.matthiasmueller.info/realtimephysics/.
 In this page to have Course Note in Real Time Physics.


Real Time Physics Course Notes
http://www.matthiasmueller.info

See in videos bellow for demonstrations.
video


Thursday, October 6, 2011

Steve Jobs - Discurso Stanford COMPLETO



Fractal Art - Fractal Apple Jobs

Arte com fractais feito em homenagem à Steve Jobs.
My work of Fractal art made ​​in honor of Steve Jobs.

Autor/Author: Wandeson Ricardo

Die Apple founder Steve Jobs 1955 - 2011

He died on Wednesday a co-founder of Apple technology. Steve Jobs was born in 1955 in California in the United States. In the 1970's was one of those responsible along with Steve Wosniak created the first personal computer. And in 1980 was among the first to realize the potential of using mouse-driven graphical interfaces.
Due to the high cost of University Reed College in Portland, Oregon, which had entered Steve is forced Abaddon the course after six months, but this has not prevented him from becoming the visionary technology.

Links about Steve Jobs

Morre fundador da Apple Steve Jobs - 1955 2011

Morreu nesta quarta-feira um dos fundadores da empresa de tecnologia Apple. Steve Jobs nasceu em 1955 na Califórnia nos Estados Unidos. Na década de 1970 foi um dos responsáveis ao lado de Steve Wosniak pela criação do primeiro computador pessoal. E em 1980 foi o um dos primeiros a perceber o potencial do uso de interfaces gráficas guiada pelo mouse.
Devido ao elevado custo da universidade Reed College em Portland, Oregon, na qual havia entrado em Steve se vê obrigado abadonar o curso após 6 meses, mas tal fato não o impediu de se tornar o visionário da tecnológia.


Links sobre grande Steve Jobs
G1 Tecnológia
Apple Bio
Wikipédia Português
http://www.apple.com/stevejobs/

Saturday, October 1, 2011

Site kernel.org fora do ar

No mês de agosto o site kernel.org, onde ficam os arquivos referentes aos fontes do kernel Linux, foi alvo de ataque. O fato foi descoberto 17 dias após o ataque. Desde então a página encontra-se fora do ar para manutenção e verificação de erros e possiveis danos. Devido a estes pequenos inconvinientes, o site permanece fora do ar e possiveis novos lançamentos do kernel foram alterados.

Tais fatos abriu precedentes para os não-simpatizantes do Linux começarem a despejarem suas avalanches de criticas ao sistema, muitos desses nunca usaram o sistema e nem acessam o site do kernel. Com isso começam a especular sobre a segurança do sistema. Se considerarmos que recentemente a Microsoft havia anunciado que máquinas saidas com Windows não permitiriam "dual boot" (dois sistemas na inicialização do computador) alegando que isto era inseguro. Pode parecer um pouco exagerado da minha parte mas começo a me questionar sobre as origens reais e motivações de tais ataques. Mas vamos esperar pelos resultados e as novas notícias que possam surgir a cerca do fato.

Fonts:
InternetNews
BrLinux
LWM

Site do kernel: http://www.kernel.org

Por Dentro do AdSense: Com o +1, os anúncios gráficos tornam-se mais rele...

Por Dentro do AdSense: Com o +1, os anúncios gráficos tornam-se mais rele...: Gostaríamos de anunciar mais um recurso para nossos editores do Google AdSense: o +1 na Rede de Display do Google. A partir de ou...

Friday, September 30, 2011

Computer Controlled Orchestra - Computador controla Orquestra

"Inspired by the animated music video Pipe Dream by Animusic, Intel Embedded Computing engineers teamed up with Austin-based Sisu to turn that animation into a real computerized paint ball orchestra. The Intel Industrial Control in Concert piece was unveiled at the Intel Developer Forum in September 2011. Built with seven Intel Atom processors, running three different operating systems, security camera system, sensors, touchscreen and other technologies, the project was completed in just 90 days at a cost of about $160,000."




Animusic - Pipe Dream


Animusic - Pipe Dream II

Video Aulas de matemática e outros - Video Lectures in Mathematics and others

List Pages

Free material of courses for study.
Material online gratuito para estudo.

http://video.impa.br(Portugues e english)
http://ocw.mit.edu(English)
http://academicearth.org/(English)
http://nptel.iitm.ac.in/ (English)

Monday, September 26, 2011

OpenCloth - implementing cloth simulation algorithms in OpenGL

Algorithms in opengl for simulation of cloth.

"Introducing an OpenGL based cloth simulation code base. We implement all of the existing cloth simulation algorithms in as simplistic an approach as possible so that learners may know exactly what is needed to get a cloth simulation system up and running in OpenGL with a minimum of fuss. OpenCloth project has been initiated with a view that it may help beginners and researchers alike to implement the basic algothims for cloth simulation using OpenGL API. It is not intended as another library that you can plugin into your game engine directly. Rather, you can learn from it and then implement a technique or two in you own game/physics engine. With a little bit of effort, it should be straight forward to implement the discussed algorithms on other platforms and Graphics API. Focus is on how to handle the bare minimum required to implement the techniques. Rather than wrapping code into classes, we implement the whole code in a single source file."

See algorithms in OpenCloth page.

Explicit Euler integration



Manipulation

Curso a distância de openMP pelo CESUP-UFRGS

Será realizado entre os dias de 11 até 24 de Outubro curso sobre o uso
de openMP. Serão abordados conceitos básicos de Computação de Alto Desempenho e de programação paralela com o padrão OpenMP.

Mais detalhe podem ser visto aqui

Uma lista de cursos estão em http://www.cesup.ufrgs.br, entre os cursos a distâncias também estão o de MPI e Fortran 90/95 (estes sem data de inicio divulgados)

Sunday, September 25, 2011

Artificial Intelligence Course Free Online - Based on Stanford course

Will start on 10 October an online course on Artificial Intelligence. To participate you must register on the site www.ai-class.com . The course instructors will be the authors of the book Artificial Intelligence: A Modern Approach, Sebastian Thrun and Peter Norvig. This course is based on the course Introduction to Artificial Inteligêcia offered at Stanford University in the United States

Curso de Inteligência artificial online gratuito - Baseado em curso de Stanford

Será iniciado em 10 de Outubro um curso online sobre Inteligência Artificial. Para participar é necessário cadastrar-se no site www.ai-class.com. O curso terá como instrutores os autores do livro Artificial Intelligence: A Modern Approach, Sebastian Thrun and Peter Norvig. Este curso é baseado no curso de Introdução a Inteligêcia Artificial oferecido na Universidade de Stanford nos Estados Unidos.

Tuesday, August 2, 2011

Ebook online free Math and Computing - Ebooks grátis Matemática e computação

Below be links for online material of mathematic (math ebooks).
Abaixo estão links para ebooks online gratuitos de matemática.

Português

1. UFAL - Universidade Federal de Alagoas
Material sobre Algebra Abstrata e programação em C.
2. ICMC - USP
Textos de Cálculo, Algebra Linear, Equações Diferenciais, Tutorial sobre editoração com Latex entre outros.
3. IME - UERJ - Cálculo
Ebooks sobre Cálculo, Topologia, Topologia Algébrica, Equações diferenciais.
4. IME - UERJ - Algebra Linear
Ebook de Algebra Linear
5.  UFMG - Professor Reginaldo
Ebooks de matemática, apostilas de latex, introdução ao Matlab entre outros.
6. UNESP - inclui video.

English

1. Gatech - Georgia Institute of Technology 
  Online ebook. http://people.math.gatech.edu/~cain/textbooks/onlinebooks.html
2. AMS - American Mathematical Association
   Online ebooks in http://www.ams.org/publications/online-books/online_subject

Saturday, July 30, 2011

Caltech Researchers Create the First Artificial Neural Network Out of DNA - Caltech Media Relations

Caltech Researchers Create the First Artificial Neural Network Out of DNA - Caltech Media Relations

Caltech, California Institute of Technology, created first neural network with DNA molecules.

The project In the words him:
"Consisting of four artificial neurons made from 112 distinct DNA strands, the researchers' neural network plays a mind-reading game in which it tries to identify a mystery scientist. The researchers "trained" the neural network to "know" four scientists, whose identities are each represented by a specific, unique set of answers to four yes-or-no questions, such as whether the scientist was British."
Caltech for read more




View the researchers' videos (part 1, part 2) that explain their work.


Video 1

Video 2

Sunday, July 10, 2011

Privacy Policy - Política de Privacidade - プライバシーポリシー

Política de Privacidade

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Thank you very much.

Wednesday, July 6, 2011

Cluster - スーパーコンピュータ

クラスタは、多くの場合、データ処理のためのより大きな容量を得るために、その意思で低コストのコンピュータを使用しているコンピュータのクラスタです。これらのコンピュータはネットワーク接続と我々は、タスクを実行するために配布されるそれに接続されたサーバを、持っている。 Beowulfクラスタは、有名なブランドを複数のスレーブノードによって構成され、マシンによって管理されます。 Custumは特殊効果などの科学研究、シミュ​​レーション、製造に使用される。彼らはまた、とりわけ、OpenMPの、MPI、PVMでそのような環境でのプログラミングのために他のリソースを使用してください。 

 クラスタの一般的なタイプは次のとおりです:
  • Computer Cluster, HPC High Performance Computing), データ処理の多くを許可する;
  • High-availability (HA) cluster, 長時間アクティブなままです;
  • Load-balancing clusters,  処理バランスのとれた分布を制御する義務があります

の詳細インターネットのリンクで得られた下記の文書

  

Font: Wikipedia


(Note: ごめんなさい私の日本語、まだわたしも日本語の学生です。)

Cluster - Supercomputers - HPC

A cluster is a set of computers often using low-cost computers in its making in order to obtain a greater capacity for data processing. These computers are networked and we have a server connected to it, which will be distributed tasks to be performed. A famous brand is the Beowulf cluster constituted by several slave nodes and managed by a machine. Custum be used in scientific research, simulations, production of special effects, etc.. They also use other resources for programming in such environments with OpenMP, MPI, PVM, among others.

Common types of clusters are:

  • Computer Cluster, HPC High Performance Computing), allow a great deal of data processing;
  • High-availability (HA) cluster, remain active for long periods of time;
  • Load-balancing clusters,  have a duty to control the balanced distribution of processing. 



Fonte: Wikipedia

Clusters - Supercomputadores

Um cluster é um aglomerado de computadores usando muitas vezes computadores de baixo custo em sua confecção afim de obter uma maior capacidade de processamento de dados. Esses computadores estão conectados em rede possuindo um servidor e nós a ele conectado, aos quais serão distribuidas tarefas a serem executadas. Um tipo famoso de cluster é o beowulf constituidos por diversos nós escravos e gerenciados por uma máquina. Custuma ser em empregados em pesquisas ciêntificas, simulações, produção de efeitos especiais, etc. Tambêm utilizam outro recursos para programar em tais ambientes com openmp, MPI, PVM, entre outros.

Os tipos comuns de Clusters são:
  • Cluster de Alto Desempenho (ou HPC High Performance Computing), permiti uma grande carga de processamento de dados;
  • Cluster de Alta Disponibilidade, mantêm-se ativo por longos periodos de tempo;
  • Cluster para Balanceamento de Carga, têm como função controlar a distribuição banlanceada de processamento.
 Segue abaixo documento obtidos na internet e links com mais detalhes sobre o tema:


Fonte: Wikipedia

Livros sobre Python online para download - Python book

Livros sobre Python online para download - Python book

"Dive in to Python" é um livro sobre a linguagem de programação python que está publicado sobre
a linceça GNU Free. Ele pode ser baixado gratuitamento ou visualizado no site. Seguem abaixo os link.

"Dive into Python" is a book about Python language was released under GNU Free license.
You can download free or read online in the website.

http://diveintopython.org/index.html

Ebook "Python para Desenvolvedores" em português. Possui duas
ediçoes uma cobre o a versão 2.6 e a outra a versão 2.5 do Python.
Um ótimo texto bem completo. Pode ser encontrado no link abaixo
http://ark4n.wordpress.com/python/