A study of island network performance for streaming protocols

Nowadays video surveillance is a cornerstone of the security in the world. It provides real-time monitoring for alarm of the environment, for people as face recognition, for property as plate car numbers detection, and provides a recorded archive for investigation. With megapixel cameras becoming increasingly widespread, even the bandwidth exhaustion of corporate networks is becoming a real issue. In this research, study on the performance of the island network using streaming protocol of HTTP and RTSP to broadcast the IP camera when streaming executed on H264 and H.265 encoder was conducted. The research done on the real island network that build to use as test bed for the project, also used network emulator (NetEm) to inject the packet loss and delay to the island network to emulate real big network. Then the results were analysed by Wireshark packet analyser. Based on the results gained, it was found that HTTP over TCP has less packets when compared to RTSP. As a conclusion, Hypertext Transfer Protocol is a little superior and authoritative protocol to stream a video when compared to the RTSP protocol

Development of a vehicle robotic driver with intelligent control system modelling for automated standard driving-cycle tests

New road vehicles are required to undergo several specific tests to meet the requirement set by governing bodies in various markets. These tests are often carried out over specific driving-cycles. To carry out lab-based driving-cycle tests, a typical vehicle manufacturer will employ a trained driver to follow driving profiles on a chassis dynamometer. This project involves development of a robotic driver controller for the automation of dynamometer-based vehicle testing according to industry standard driving cycle tests and produce repeatable results by replacing the traditional method of employing a human driver with a robot driver. The throttle and brake pedals control systems modelling and design for automatic transmission vehicle are implemented, with Fuzzy model reference adaptive control (Fuzzy MRAC) as the main controller. The vehicle model was developed using black-box modelling approach where simulations are performed based on real-time data and processed using Matlab System Identification tool. The Fuzzy MRAC was then designed within the simulations to attain the driving performance. The vehicle model response was sent as feedback to the robotic DC linear actuator motor which was modelled based on DC linear actuator motor design specification. The results obtained from simulation and modelling experiment were discussed and compared. The performed work concludes that system identification modelling with best fit accuracy of 79.93% can be applied in Fuzzy MRAC to ensure smooth and accurate vehicle driving pattern behavior even when the leading vehicle exhibits highly dynamic speed behavior during driving-cycle test. The performance of the vehicle model has shown an average 0.07 MSE for the throttle system and 0.008 MSE for the brake system of the vehicle model

Somali Remittances Campaign

The world changed after 9/11, and so did the US banking regulations. One change was that it has become increasingly difficult for families and communities in Somalia to receive remittances from relatives and friends living in the United States. Those funds are essential to the livelihoods of 40% of the population, especially women and children. It further has a negative impact on the national economy of one of the world’s poorest countries. However, US banks has become increasingly willing to assume the costs of complying with the government’s Anti-Money Laundering and Combatting the Financing of Terrorism (AML/CFT) regulations or to risk the penalties for failing to meet those regulations. The problem grew to crisis levels in 2011, as the country was experiencing a devastating drought. At that point, Oxfam America, responding to requests from its local development partners, agreed to use its well-developed policy research and advocacy capacity in an effort to resolve the problem. This case study documents, evaluates and draws lessons from the first three years of Oxfam’s ongoing campaign on remittances into Somalia

SIMULATION ANALYSIS AND EXPERIMENTAL VALIDATION OF ULTRASOUND ENERGY TRANSFER IN THE NEAR FIELD TO CHARGE MEDICAL IMPLANTS

Acoustic power transfer technology is a method for wirelessly transfer energy to implantable medical devices. The advantage of ultrasonic power transfer over inductive power transfer is in the longer-distance range between the transmitter and receiver. Inductive power transfer is more powerful and even has high efficiency if the distance is in the order of the transmitter diameter orless. Nevertheless, in some cases short-distance ultrasonic power transfer may be employed; consequently, their operation may be complicated by the near-field aspects of acoustic energy transfer. Rapidly varying characteristics of the near-field region present challenges to experimental investigation.A piezoelectric energy transfer system consisting of two lead zirconate titanate (PZT) transducers is analyzed and tested, focusing on the near-field in this work. To facilitate this study, simulation analysis was used to investigate the effects on the voltage output of simultaneous variations of multiple pairs of physical parameters, such as changing the diameters of both receiver and transmitter. These physical parameters have been used to model, analyze, and simulate the performance of a piezoelectric ultrasonic energy transfer system using COMSOL Multiphysics software then validate experimentally. Moreover, the effect of the thickness ratio and diameter ratio on the power transfer efficiency was observed to be significant when the transmitter thickness was 1 mm. The simulation results indicated that changing multiple parameters simultaneously was more effective for energy transfer than changing individual parameters. The effects of operating frequency on power transfer efficiency at various distances between transmitter and receiver were also studied. It was found that the frequencies below 1 MHz showed almost zero power transfer efficiency regardless of the distance between two PZT transducers. The rotation angle that represents the misalignment between the PZT receiver and transmitter can make the power transfer efficiency change significantly by a few degrees. Finally, simulation analysis for influence of perfect match layers in terms of material and thickness on power transfer efficiency is provided

Use Accounting Information System as Strategic Tool to Improve SMEs' Performance in Iraq Manufacturing Firms

These days organizations are operating and competing in an information age. Information systems (IS) are widely use by many organizations to automate existing operation and to improve performance activities efficiency, and most the researches shown that information system adoption did increase firms’ performances and operations efficiency. Accounting information system (AIS) is one of an important component of modern information system. On the other hand, the growing importance of small and medium enterprises (SMEs) in the production sector is undeniable, whether among industrialized countries or developing countries. But there is very limited research has been prevailed by Iraq SME’s to improve their performance through AIS. So the main aim of this thesis is to explore the determinants of influence accounting information system on SMEs among Iraq manufacturing firms. This study would add value by providing a significant contribution towards use of AIS practices among SMEs in Iraq manufacturing firms. The research method used was primary data collection technique. The sampling was done on 118 owners and managers at the Industrial Area of Baghdad. The findings of this study reflect the findings of previous studies that there is a positive relationship between use AIS and improve the performance. This shows that Iraqi SMEs can improve their performance through use AIS

Investigation of brake squeal/self induced vibrations.

kebisingan brek hingar persatuan dengan ketidakstabilan dinamik dari sistem dan dikategorikan bergantung pada frekuensi untuk hingar quality (menjerit) dan rendah kebisingan (Mengerang). Pada frekuensi rendah (0-500kHz) model tongkat-slip digunakan untuk menyediakan disc-pad sistem yang diselesaikan dengan menggunakan kaedah ODE45 berangka dengan MATLAB perisian. Brake noise associates with the dynamic instability of the system and is categorized depending on the frequency to high noise (squeal) and low noise (groan). At low frequencies (0-500kHz) a stick-slip model was used to present the disc-pad system which is solved by using a numerical method ODE45 with MATLAB software

Studying of the complexes product of the nerve agent Soman with the Butyrylcholinesterase and Acetylcholinesterase Enzymes

Cholinesterases are among the most efficient enzymes known. They are divided into two groups: acetylcholinesterase (AChE) involved in the hydrolysis of the neurotransimitter acetylcholine, and butyrylcholinesterase (BChE) of unknown function. Several crystal structures of the former have shown that the active site is located at the bottom of a deep and narrow gorge. Human BChE has attracted attention because it can hydrolyze toxic esters and nerve agents. Here we analyze the complexes of cholinesterase with soman by describing the 3D geometry of the complex, the active site, the changes happened through the inhibition and provide a description for the mechanism of inhibition. Soman undergoes degradation in the active site of the AChE and BChE. We calculate the energy of the products of the degradation reaction and suggest the reaction path. The product of the former reaction bind to serine residue in the active site and forming a stable bond and ends the catalytic function of the enzyme. This study has a useful role in the search of inhibitors to help in the treatment of Alzahimer's disease

A MATLAB model for diagnosing sickle cells and other blood abnormalities using image processing

The conventional method for detecting blood abnormality is time consuming and lacks the high level of accuracy. In this paper a MATLAB based solution has been suggested to tackle the problem of time consumption and accuracy. Three types of blood abnormality have been covered here, namely, anemia which is characterized by low count of red blood cells (RBCs), Leukemia which is depicted by increasing the number of white blood cells (WBCs), and sickle cell blood disorder which is caused by a deformation in the shape of red cells. The algorithm has been tested on different images of blood smears and noticed to give an acceptable level of accuracy. Image processing techniques has been used here to detect the different types of blood constituents. Unlike many other researches, this research includes the blood sickling disorder which is epidemic in certain regions of the world, and offers a more accuracy than other algorithms through the use of detaching overlapped cells strategy