Design and implementation of hybrid vehicle using control of DC electric motor

The electric motors and its control technology are key components of hybrid electric vehicles (HEVs). Control of the electric motor is a fundamental issue for traction application in electric vehicles and HEVs. This paper presents the design, development and implementation of a hybrid vehicle using both an electric motor and petrol engine to increase efficiency and decrease carbon footprint. Initially, a prototype of a HEV is designed and the performance values are calculated, before a control system is developed and implemented to control the DC motor speed using a microcontroller as the vehicle’s electronic control unit along with simple proportional integral derivative (PID) control using speed as a feedback mechanism. The prototype made incorporated voltage, current, speed and torque sensors for feedback resulting in a closed loop control system which successfully matched the speed input of a user-controlled pedal sensor. A user interface was developed to show the driver of the vehicle key variables such as the revolutions per minute (RPM) of the motor, the speed of the vehicle along with the current being drawn, and the voltage applied to the motor with overall power. To output a variable voltage from the Arduino, a digital output was used with pulse width modulation (PWM) capabilities in order to provide a variable DC voltage to the speed controller

Corporate Governance in the Financial Sector of Pakistan

La Porta et al. (1998) assign Pakistan, a common-law country, the maximum score of 5 for their anti-director rights index. Pakistan should therefore be a country with good investor protection attracting large amounts of investments. However, the reality could not be more different. Pakistan has been lagging behind other, comparable Asian economies in terms of incoming foreign direct investment as well as GDP-per-capita growth. This paper focuses on the Pakistani banking sector. The paper analyses the banks ownership and control structure. It finds that Pakistan has its own idiosyncrasies, which are difficult to associate with La Porta et al.s characterisation of corporate governance and investor protection in common-law countries. The paper also reviews the recent reforms of corporate governance.Corporate governance, corporate control, Banks, Pakistan, Emerging Markets, investor protection

Effect of Composition on Optical and Thermoelectric Properties of Microstructured p-type (Bi2Te3)x(Sb2Te3)1 – x Alloys

Semiconducting (Bi2Te3)x(Sb2Te3)1 – x alloys are among the best thermoelectric materials available today near room temperature. This property is largely attributed to compositional variations, resulting in improved figure of merit. Considering this, present study aimed at characterizing the optical and thermoelectric properties of microstructured p-type (Bi2Te3)x(Sb2Te3)1 – x alloys for enhanced thermoelectric efficiency. High performance microstructured p-type (Bi2Te3)x(Sb2Te3)1 – x alloys were prepared by melting technique. The phase, optical band gap, microstructure, carrier type concentration and thermoelectric properties of the prepared alloys were systematically investigated by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, hot probe p-n type tester, four-probe method, κ-probe method and Seebeck coefficient measurement system. The electrical conductivity and Seebeck coefficient were measured in the temperature range 298-473 K to elucidate the Sb content effect on the thermoelectric properties of the p-type (Bi2Te3)x(Sb2Te3)1 – x alloys. The optical band gap decreased with increasing Sb content. Also, with the increase of Sb content, the electrical conductivity increased substantially, the thermal conductivity increased significantly and the Seebeck coefficient decreased marginally, which lead to a great improvement in the thermoelectric figure of merit. The maximum power factor of 3.2 × 10 – 3 Wm – 1K – 2 and figure of merit of 0.72 were obtained at 300 K for the composition of 15 %Bi2Te3-85 %Sb2Te3. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3582

Arc discharge synthesis of CNTs in hydrogen environment in presence of magnetic field

In this study the effect of hydrogen ambient environment on the growth of carbon nanotubes by arc discharge plasma in presence of external magnetic field is investigated. The samples collected from cathode deposit are analyzed by field emission scanning electron microscopy and Raman spectroscopy. Results show an increase in carbon nanotube growth with increase in hydrogen ambient pressure. The magnetic field considerably enhances the growth of carbon nanotube as observed in FESEM micrographs. In Raman spectrum, high intensity of G peak as compared to D peak indicates the presence of high quality nanotubes. Magnetic effect remarkably decreases ID/IG ratio from 1.55 to 0.31 for ambient pressure 10 mbar

Trafficking in Europe: An Analysis of the Effectiveness of European Law

This Essay looks at the manifestation of various forms of human trafficking within Europe and analyzes the effectiveness of current European law provisions in combating trafficking and protecting victims. The Essay will accomplish this by examining recent and current cases before the European Court of Human Rights and the comparative gap between European standards and domestic procedures in the United Kingdom. The United Kingdom is a well-known destination state for trafficking victims\u27 and consequently is required to meet obligations under international law toward a significant number of individuals who have been forced into exploitation in the United Kingdom

Trafficking in Europe: An Analysis of the Effectiveness of European Law

This Essay looks at the manifestation of various forms of human trafficking within Europe and analyzes the effectiveness of current European law provisions in combating trafficking and protecting victims. The Essay will accomplish this by examining recent and current cases before the European Court of Human Rights and the comparative gap between European standards and domestic procedures in the United Kingdom. The United Kingdom is a well-known destination state for trafficking victims\u27 and consequently is required to meet obligations under international law toward a significant number of individuals who have been forced into exploitation in the United Kingdom

Pakistan Journal of Neurological Surgery

Dear ReadersI am glad to announce that Pakistan Journal of Neurological Surgery has been upgraded in Y category from Z category in the list of HEC recognized journals. Moreover, it has been included in the list of HJRS (HEC Journal Recognized System) after an evaluation. I am extremely thankful to my editorial team for theirefforts and cooperation. We have been indexed in multiple International agencies like ICI (Index Copernicus), ISSN France, BASE Germany, Cross Ref, Eurasian Index, Asian Digital, PASTIC and PakMediNet. Each article has its DOI Number as well via Cross Ref

Domestic and cross-border returns to bidders in acquisitions into the E.U.

United Kingdom (U.K.) i.e., when U.K. banks acquire domestic banks and when U.K. banks acquire cross-border banks within the European Union (E.U.). The article includes 75% sample of the total population of bank to bank domestic acquisitions within the U.K. and crossborder acquisitions within the E.U. from 2006 until 2013. The article comes to the conclusion, by the means of event study methodology, that the shareholders returns of acquiring banks are negative and statistically insignificant (–2.076%) when they acquire cross-border banks. The results of U.K. banks acquiring domestic banks indicates higher and statistically significant abnormal returns of 1.628% at 5% significance level as compared to cross-border returns gained by U.K. acquiring banks. The research found an overall insignificant abnormal return of –0.448% for shareholders of the acquiring banks for the entire portfolio. It can be concluded that, on average, shareholders of the acquiring banks experience negative abnormal returns and acquisitions do create (short-term) abnormal returns for the acquiring banks’ shareholders around the acquisition announcement time