آیین نامه آموزشی دانشگاه آزاد اسلامی

قسمت آیین نامه آموزشی دانشگاه آزاد اسلامی به وبلاگ الکترونیک تیم اضافه گردید تا دانشجویان عزیز در صورت برخورد با مشکل به این قسمت مراجعه نمایند.

آیین نامه آموزشی دانشگاه آزاد اسلامی

لیست دروس ارائه شده

لیست دروس ارائه شده ترم دوم سال 89-88 دانشگاه آزاد مراغه

دروس عمومی و تخصصی تمامی رشته ها

 

نظر سنجی دانشگاه آزاد اسلامی واحد مراغه

نتایج نظر سنجی سایت دانشگاه آزاد اسلامی واحد مراغه شکایت از کاستی ها بیشتر دارد!؟ این شکایت ها به صورت خیلی چشم گیری هست تا حدی که این نظر سنجی از 17 مهر 1385 تا 08 بهمن 1388 با تعداد آراء 528 است، ولی 343 رای یعنی 65% اصلا راضی نیستند!؟بنده خود هم یکی از این شاکی ها هستم ولی به نظر بنده این شکایت ها مربوط ریاست دانشگاه آزاد مراغه نیست بلکه این شکایت ها شامل کارمندان و کارکنان این دانشگاه است. بنده نتایج این نظر سنجی رو روی وب قرار می دهم تا شما دانشجویان دانشگاه آزاد مراغه هم نظرات و انتقادات خودتون رو بزارید و بتوانیم این شکایت ها را به گوش مسئولان برسانیم.

نتایج نظر سنجی:

آیا از خدمات و امكانات رفاهی دانشگاه راضی هستید؟

اصلا راضی نیستیم
343	65%
متاسفانه در حد مطلوب نمیباشد
95	18%
جای برای فعالیت بیشتر وجود دارد
49	9.3%
بلی . راضی هستیم
36	6.8%

تعداد آرا	:  528
اولین رای	:  دوشنبه, ۱۷ مهر ۱۳۸۵ ساعت ۱۷:۳۱
آخرین رای	:  پنجشنبه, ۰۸ بهمن ۱۳۸۸ ساعت ۱۳:۴۲

 

مشاهده عکس در سایز اصلی

مشاهده نتایج نظر سنجی

آشنایی با سنسور های گاز سری MQ

از سری سنسور های تشخیص انواع گاز ، سنسور های سری MQ میباشد که کاربرد فراوانی دارند و با  قیمت های متفاوتی و در مدل های مختلفی دربازار ایران یافت میشود.

ادامه مطلب

هشتمین دوره مسابقات رباتیک دانشگاه صنعتی نوشیروانی بابل

هشتمین دوره مسابقات رباتیک در رشته‌های زیر توسط انجمن علمی برق و کامپیوتر دانشگاه صنعتی نوشیروانی بابل برگزار می‌گردد :

۱٫ ربات‌های مسیریاب ۲٫ آتش‌نشان ۳٫ مین‌یاب ۴٫ تیرانداز

زمان برگزاری : هفته اول اردیبهشت ماه ۱۳۸۹

جهت کسب اطلاعات بیشتر به سایت انجمن علمی برق و کامپیوتر دانشگاه صنعتی وشیروانی بابل به آدرس http://www.eleccomp.ir مراجعه فرمایید .

پروژه با AVR

اینم چند پروژه با AVR خدمت شما

دما سنج با AVR

 دریافتDownload

 

ساعت با AVR

دریافت Download

 

قفل رمز پیشرفته با 8051 و AVR

دریافت Download

 

دما سنج دیجیتال با سون سگمنت و AVR

دریافت Download

 

متر دیجیتال (AVR)

دریافت Download

 

چشمک زن با AVR

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رقص نور با AVR

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Monster debuts world's fastest HDMI cable and 3.5mm superthin cable

Monster announced two additions to its cable products and a new home networking solution at CES this week. On the cable front, the “future ready” M Series M2000 Hyper-Speed Cable for HDMI is the world’s fastest at a blistering 21 Gigabits per second, while the near invisible 3.5mm SuperThin Cable for Mini HDMI has been specifically designed for use with the latest HDMI enabled digital cameras and camcorders. The Powernet 1G with PowerLine Communication (PLC) technology instantly turns a home's electrical wiring system into a high speed Ethernet network.

ادامه مطلب

Sensirion SHT11 Sensor Module

اندازه گیری دقیق درجه حرارت و میزان رطوبت ویژگی ها:

مقداردرجه حرارت: -40 °F (-40 °C) تا +254.9 °F (+123.8 °C)

میزان دقت درجه حرارت: +/- 0.5 °C @ 25 °C

میزان رطوبت: 0 تا 100% RH

میزان دقت RH مطلق: +/- 3.5% RH

مصرف برق پایین( شاخصا 30 μW)

 

اتصالات:

SHT11 به استامپ موجود در بالای دو پین I/O وصل است. کاهش مقاومت 4.7 kΩ موجود بر روی ساعت اختیاری است اما اگر حسگر آزمایشات کاربردی قفل باشد به آن نیاز می باشد.

 

کاربرد استامپ BASIC:

عکلکرد استامپ BASIC زیر می تواند نمونه حسگر SHT11 را بخواند و شمارش حسگر ، حرارت تبدیل شده و رطوبت اندازه گیری شده را نشان دهد. در زمان حرکت،‌خروجی برنامه همانند زیر ظاهر میشود:

 

SALESTYPE های مقدم ریز الکترونیک های ST n مقاومت های سیلیکون NPN شرح:

BD135 و BD139 ،ترانزیستورهای NPN مسطح epitaxial سیلیکون در بسته پلاستیکی

Jedec SOT-32 هستند که برای امپلی فایرهای صوتی و  محرک های مورد استفاده در مدارهای تکمیلی یا مشابه تکمیلی طراحی شده اند. انواع PNP  تکمیلی به ترتیب BD136 و BD140 هستند.

 

واحد مقدار پارامتر نمونه BD135 BD139:

 

ولتاژ پایه کالکتر: (IE = 0) 45 80 V

ولتاژ منتشر کننده کالکتر: (IB = 0) 45 80 V

ولتاژ پایه- منتشر کننده: (IC = 0) 5 V

جریان برق کالکتر: 5/1 آمپر

حراکثر جریان برق کالکتر: 3 آمپر

جریان برق پایه: 5/0 آمپر

پراکندگی کلی در Tc 3 25 oC           :  12.5 W

پراکندگی کلی در Tamb 3 25 oC      : 1.25 W

درجه حرارت ذخیره شده: منفی 65 تا 150 درجه سانتیگراد

درجه حرارت نقطه اتصال عملیاتی: 150 درجه سانتیگراد

نظر سنجی اساتید

این قسمت در حال طراحی می باشد. 

با تشکر

پست رمز دار : دروس انتخابی ترم جاری توسط دانشجویان

این پست رمزدار است، جهت مشاهده باید کلمه رمز این پست را وارد کنید.

Microscopic 'ants' can transport objects inside a microchip

A collaboration between MIT, Boston University and German researchers has produced a new system that could soon be used to move tiny objects inside a microchip. The system is self-assembling, can be controlled via software and can transport particles up to 100 times the size of the beads carrying them. The objective is to give scientists new insights as to how cells and other objects are transported by tiny cilia throughout our bodies.

Throughout our bodies, tiny hair-like filaments known as cilia are used in organs such as the trachea and intestines to create currents that can effectively transport small particles where needed. The system devised by the team uses the same principle to move particles around a microchip.

ادامه مطلب

Israel's military avatar: Robots on the battlefield

 

Elbit's Viper robot, capable of crawling through tunnels, entering buildings, turning around and broadcasting images.

With self-detonating grenades, thinking bullets and robot warriors, humans on the frontline could soon be a thing of the past.

When armies clash in the not-too-distant future, remotely-operated robotic weapons will fight the enemy on land, in the air and at sea, without a human soldier anywhere on the battlefield.

The first robotic systems are already being used by the Israel Defense Forces and other armies across the world, and only budgetary constraints seem to be keeping science fiction from becoming reality.

In places where there is no choice but to send in troops, constantly improving broadband technologies, developed from the civilian communications industry, will serve as an essential part of the infrastructure for all modern military forces.

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A helicopter that spots suspicious movement on the ground will, for instance, be able to relay a command to a drone aircraft to photograph the site and transmit the picture in real time to troops on the ground and to the command posts in the rear.

Soldiers will be able to mark their target by its coordinates and with lasers, allowing missiles launched from dozens of kilometers away to be guided by global positioning systems, ensuring accuracy and destruction of the target.

The systems will be coded to prevent enemy interception of the operation. Spy satellites that today weigh several tons will be shrunk down to anything between one and 100 kilograms or less, with engines the size of postage stamps. Infantry rifles will be computerized and fire "smart" rounds telling them when and where to explode. New rockets will also be able to think by themselves to enhance their accuracy.

Israel's military industries, already world leaders in arms technology, are hard at work developing weaponry for the 2020s. Development of new weapons for the IDF is generally carried out with assistance and in cooordination with the Defense Ministry?s research and development arm.

The Israeli military's demands are the cornerstone of the local weapons industry, and they can be summed up in two words: miniaturization and accuracy. The former will enable the troops in the field to carry their weapons or communications equipment more easily, and the latter will help avoid civilian casualties.

Military censorship prevents disclosure of the Israeli arms industries? most exciting and futuristic devices, but a good picture of what can be expected can be compiled using what is already in the public domain.

 

ادامه مطلب

دیتا شیت های کاربردی در ضمینه ی رباتیک

سنسور ها:

CNY70 , GP2S04 , ON2179 

درایور ها:

L298 , L293 , ULN2003 , ULN2803 

مقایسه کننده ها:

LM741 , LM358 ,  LM324 

رگولاتور ها:

LM7805 , LM7812

New sensors protect priceless paintings in transit

Valuable paintings that are shipped or loaned to museums or other destinations around the world will soon have unusual traveling companions for their long journeys – sensors that can detect the buildup of pollutants within their specially-designed shipping crates. Occasionally, adhesives and other chemicals within the crates can breakdown and the fumes can damage the works of art. But the new sensors, developed by scientists at the Fraunhofer Institute for Silicate Research ISC in Würzburg, Germany, will detect these dangerous substances and help avoid the treasures being damaged.

While the microclimate inside the cases keeps the polluted outside atmosphere at bay, the environment within the cases – that are made of plastic, wood and glass to protect the works of art - can also emit damaging substances such as acetic acid. These substances react with the oil paint, causing it to gradually degrade. Even the paintings themselves can also emit pollutant gases that build up inside the case. Similar problems can be encountered when paintings are stored in the vaults of a museum or put on display in an enclosed, climate-controlled showcase.

Various environmental sensors will soon be available to measure the amount of gases inside the case.

One of these sensors is a glass dosimeter, which is particularly sensitive to the presence of acids. “The acid attacks the surface of the glass and gradually erodes it. After a few days, a reaction layer starts to form. We quantitatively analyze this reaction layer using an infrared spectrometer. A few weeks later, crystalline products may also start to appear on the surface of the glass, enabling us to identify the type of acid involved,” said the head of the relevant ISC business unit, Dr Gerhard Schottner.

The new sensors will also be able to detect atmospheric pollutants that produce nitrogen and sulfuric oxides inside the showcases.

“The sensors help us to identify the pollutant gases and determine which were produced inside the showcase and which have penetrated it from outside. They enable us to build zero-emission showcases and substantially improve the microclimate surrounding the valuable artworks,” says Schottner.

Another use for the sensors will be when assessing claims for damages sustained by a painting during shipment, because they enable the display-case manufacturer to provide documented evidence of the origin of the harmful emissions. The research team has already conducted initial pilot tests.

باز این چه شورش است؟ که در خلق عالم است

 

 

 

باز این چه شورش است؟ که در خلق عالم است       باز این چه نوحه وچه عزا وچه ماتم است؟
باز این چه رستخیز عظیم است؟ کز زمین           بی نفخ صور، خاسته تا عرش اعظم است
این صبح تیره باز دمید از کجا؟ کزو            کار جهان وخلق جهان جمله درهم است
گویا، طلوع می‌کند از مغرب آفتاب         کآشوب در تمامی ذرات عالم است
گر خوانمش قیامت دنیا، بعید نیست            این رستخیز عام، که نامش محرم است
در بارگاه قدس که جای ملال نیست             سرهای قدسیان همه بر زانوی غم است
جن وملک بر آدمیان نوحه می‌کنند       گویا، عزای اشرف اولاد آدم است
خورشید آسمان وزمین، نور مشرقین    پروردهٔ کنار رسول خدا، حسین

فرا رسیدن ماه محرم ماه عزا و ماتم، ماه پیروزی خون بر شمشیر را به تمامی دوستان و عزیزان و بازدیدکننده گان ما عرض تسلیت و تعضیت دارم. امیدوارم تو این ماه ما رو هم فراموش نکرده و دعا کنید.

با تشکر
سامان تمجیدتاش

 

Helping robotic surgeons to operate on beating hearts

Stopping a heart from beating during surgery is a complicated and risky procedure. Robotic technology that predicts the movement of the heart as it beats, thereby enabling surgical tools to move in concert with each beat, could help cut the risks of such surgery by allowing surgeons to operate on a beating heart as if it were stationary.

The researchers from France's Montpellier Laboratory of Informatics, Robotics, and Microelectronics developed a three-dimensional computerized model that not only tracks the motion of the heart's surface as it beats, but also accounts for the movement of a patient's chest wall during breathing. Known as the "thin-plate spline deformable model", this new computerized approach allows the robotic arm to continually adjust to heart and chest movements during surgery.

The new approach relies on a mathematical representation of the heart's surface as it moves in three dimensions during pumping. Previous attempts to use computer modeling to account for heart and breathing motion have relied on 2D imaging combined with other steps, making them to slow to provide instantaneous feedback during an operation. This new 3D imaging predicts the heart movements in a single step, making it faster in real-life surgical environments.

Robotic arms have become essential in many kinds of surgical procedures, including microsurgery and operations that require extremely delicate movements. However, these machines also prevent the surgeons from using their sense of touch and coordination to adjust for rapidly changing environments. This new computer-generated model makes it possible for the surgeon to focus on suturing or cutting without having to adjust for the moving surface.

The researchers believe their work will ultimately have many potential applications including heart surgery, coronary bypasses, and many kinds of brain surgery. In the shorter term though they say the technology will benefit the large number of patients worldwide who go without less invasive procedures that are not “life-or-death” simply because the risk of complications surrounding stopping the heart outweighed the benefits.

The report, “Three-dimensional Motion Tracking for Beating Heart Surgery Using a Thin-plate Spline Deformable Model,” appears in the International Journal of Robotics Research.

Use your face to unlock the door

A facial recognition door entry access system that also keeps records of people coming and going could be the one accessory your high-tech home is missing. Or it could be that you run a business say, without a receptionist, and you want to keep track of employees’ movements in and out of the front door. With this device you can even keep out those pesky door-to-door salespeople. The Hanvon CVJB-G107 Face Recognition Time Attendance System and Access Door Lock from electronics wholesaler Chinavasion is a cheap solution (under US$500) and lets you program who gets in and out of your business or home.

The system works by taking a 3D image of people at the door via its two cameras and matching them against your stored database of images (up to 500 faces).

Deploying the same wiring protocol (Weigand) commonly used to connect a card swipe mechanism to the rest of an electronic entry system, you can monitor your staff, family members, their friends, plus unwelcome guest and family members.

Chinavasion says the wall-mounted CVJB-G107 can recognize facial distinction accurately in a fraction of a second and the added security of 3D images means that photographs of people won’t fool the system, only the real people will gain access to your premises.

The facial recognition and time attendance system isn’t a bad looking piece of equipment either, and will sit comfortably alongside most other high-tech devices in the modern home or office.

Also equipped with night vision, the unit has a 3.5-inch TFT display screen, touch keypad, USB and Ethernet port for TCP/IP connections.

 

ادامه مطلب

تبادل لینک

سلام خدمت وب نویسان و همکاران:

چنانچه دوستانی که در ضمینه غیر برق و الکترونیک وب نویسی می کنند و مایل به تبادل لینک با این وبلاگ هستند می توانند با قرار دادن آدرس ما در وبلاگ خودشان و از قسمت ارسال لینک در قسمت لینک دوستان در وبلاگ الکترونیک تیم ما را با خبر نمایند و ما ظرف 24 ساعت چنانچه وبلاگ ما در لیست وبلاگ های دوستان باشد تایید نماییم.

و عزیزانی که وبلاگ های در ضمینه ی الکترونیک و برق وبلاگ نویسی می کنند در نظرات آدرس خود را به ما ارسال کنند تا ما به قسمت لینک های مرتبط با وب تایید  نماییم ولی قبل آن خواهشمندیم که وبلاگ ما را عضو لینک های خود نمایید.

 

با تشکر مدیریت وب

سامان تمجیدتاش

Gestural interfaces make touch screens look so ‘last year

 

The gestural interface used by Tom Cruise in the movie Minority Report was based on work by MIT Media Lab’s Hiroshi Ishii, who has already commercialized similar large-scale gestural interface systems. However, such systems comprise many expensive cameras or require the user to wear tracking devices on their fingers. To develop a similar yet cost effective gestural interface system that is within reach of many more people other researchers at MIT have instead been working to develop screens with embedded optical sensors to track the movement of the user’s fingers that could quickly make touch screens seem outdated.

Touch screens, like those found in iPhones, use capacitive sensing, where the touch of a finger disrupts the electrical connection between sensors which determine the location of the touch. Gestural interfaces use embedded optical sensors to track the movement of the user’s fingers so they don't have to come into contact with the display.

Many have pegged gestural interfaces as the next big thing in computer interfaces, including Microsoft whose Project Natal uses a peripheral embedded with a small camera to capture gestural information. However, according to the MIT researchers, such systems are limited because the cameras are offset from the center of the screen and therefore don’t perform well at short distances, which limits their ability to provide a seamless transition from gestural to touch screen interactions. This can be overcome if the cameras are set far enough behind the screen, as they are in Microsoft’s SecondLight, but this makes the displays bulky and requires expensive hardware to render the screen alternately transparent and opaque.

“The goal with this is to be able to incorporate the gestural display into a thin LCD device” - like a mobile phone - “and to be able to do it without wearing gloves or anything like that,” says researcher Matthew Hirsch, a PhD candidate at the Media Lab says.

Hirsch, along with MIT Media Lab professors Ramesh Raskar and Henry Holtzman and visiting researcher Douglas Lanman, have instead been working on a project that uses embedded sensors to turn displays into giant lensless cameras that can recognize hand gestures.

ادامه مطلب

Nao,a robot that sees, speaks, reacts to touch and surfs the web

 

The versatile humanoid robot Nao caught Gizmag's attention at the 2009 International Robot Exhibition (iREX 2009). What Nao lacks in size, he makes up for in features and capabilities. Nao can see (via two cameras), will react to touch, can surf the Web and can interact with other Naos. He can speak (in English or French, so far) by reading out any file stored locally in his storage space or captured from a website RSS flow. The bot is fitted with an accelerometer and gyrometer so he won't fall down, he's also equipped with two pairs of ultra-sound senders/receivers on his torso that give feedback on several echoes so Nao is aware of obstacles close by and can avoid them.

Nao’s vision is provided by two CMOS 640 x 480 cameras, which can capture up to 30 images per second. One is positioned on his forehead, aimed at Nao’s horizon, while the second camera is placed at mouth level to scan Nao’s immediate environment. And Nao’s software even lets you recover photos and video stream of his vision.

But Nao’s vision is more than just a movie-maker. His eyes can interpret his surroundings thanks to a set of algorithms in his on-board computer that can detect faces and shapes. This enables Nao to recognize the person talking to him, find a ball, and more complex objects. These algorithms have been specially developed for Nao by his makers, Aldebaran Robotics, and care has been taken to ensure they use up minimum processor resources.

ادامه مطلب