In concurrent programming, concurrent accesses to shared resources can lead to unexpected or erroneous behavior, so parts of the program where the shared resource is accessed are protected. This protected section is the critical section or critical region. It cannot be executed by more than one process. Typically, the critical section accesses a shared resource, such as a data structure, a...
A simple generic C Queue for static or dynamic memory usage
In this post i publish a simple modular queue written in C which can be used either by assigning a static space for the elements of a dynamic one (malloc etc). Queue is a particular kind of abstract data type or collection in which the entities in the collection are kept in order. The only requirement is that the memory space which will hold the queue items have to be allocated in prior. Below is...
Fast Kalman Filter in Matlab
Kalman filtering-smoothing is a fundamental tool in statistical time series analysis: it implements the optimal Bayesian filter in the linear-Gaussian setting, and serves as a key step in the inference algorithms for a wide variety of nonlinear and non-Gaussian models. However, using this kind of filter in small embedded systems is not a good choice due to the computational intensive maths. For...
How to localize EEG-signals according to the international 10-20 system of electrodes position
In order to perform measurements for feature extraction, it is needed to localize the channels from the data-set recordings to, which contain the raw brain waves with some technical specification of each signal. CHB-MIT Scalp EEG Database is one of the most cited resources used in prediction detection experiments. It is also one of the few publicly available invasive EEG data-sets. The database...
J-Lock Encryption Tool
J-Lock Encryption Tool is a windows application dedicated to securely encrypt your files. The encryption algorithm that is utilized in this software is well know AES. For the most of the security, this application does not store any password (beware that there is no recovery of the file(s) in case you loose you password). For more information please contact us at: apps[at]devcoons.com. The full...
Using ST’s I2C EEPROM 24C16 with Freescale SKEAZ128LH4
The I²C bus is the most popular of the three current serial EEPROM protocols because of its simplicity, high signal density, and unique write protect (WP) pin characteristics. This illustration shows the typical pin-out of an I²C device with pins 1 through 3 as address pins A0, A1, and A2. Pin 4 is designated as ground, Vcc, while pin 5 is the data line, SDA. The clock signal SCL is at pin 6, pin...
Automotive most used protocols – KWP2000 and UDS.
KWP2000/UDS devices are essential tools for anyone who wants to tinker with a vehicle’s onboard computer system. Whether you’ll use yours for chip tuning a hobby-racing vehicle or you need to equip your auto-shop business with better on-board vehicle diagnostics (OBD) programming tools. KWP2000 actually stands for Keyword Protocol 2000, which is the name of a set of communications...
How to manipulate an enormous Data Set
Data Preparation is the core of data science and it is crucial for any data analysis. It involves data cleansing and feature engineering. Usually, this takes 60 to 80 percent of the whole analytical pipeline. However, it is a mandatory task in order to get the best accuracy from machine learning algorithms on your data-sets [1]. The first part of this process is the Data Cleansing is the process...
A small Preview of Epilepsy Seizure Prediction, What? How? Why?
Epilepsy is a chronic neurological disorder that affects approximately 50 million people worldwide. These intractable seizures postures are a serious risk of injury, restrict the self-sufficiency and mobility of a person. While medication and surgery can, to some degree, relieve the symptoms, these treatments fail to help all patients. Population wide, approximately 1% is suffering from epilepsy...
The blockchain technology
In our times, there has been a tremendous evolution of technology that among others has extended human capabilities. One of the latest adapted concepts with a significant impact in various sectors is the Blockchain technology. This term was first coined in 2008 by an individual (or group) under the name of Satoshi Nakamoto in a white-paper entitled Bitcoin: A Peer-To-Peer Electronic Cash System...
