150 research outputs found

    Design and implementation of a smart dual axis sun tracker based on astronomical equations

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    This paper presents a new design algorithm for stand-alone solar tracking system based on ATMEL Microcontroller. The proposed idea of the design is based on astronomical equations to determine the position of the sun in the sky at any time of the day to calculate the tilt angle and polar angle for the two axis tracking purposes. The system is capable of tracking the sun properly at any position on the earth because of the general nature of the algorithm used in the design. At the same time the system reliability, cost effectiveness, precision and flexibility are taken into consideration

    Desıgn of a control and data acquısıtıon system for a multı-mode solar trackıng farm

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    This paper presents a combination network design for a solar tracking farm consisting of n-solar tracking systems. Serial communication protocol has been adopted for this network with developed strategy to make the farm expandable for possible future extension. The master control unit is responsible for managing all the trackers of the sun location in multi-tracking mode, diagnosis all the trackers for any faults and give complete information about the produced power by each of the solar tracking system. This network protocols is designed to deal with the error control, congestion control and flow control for data transmission in the network

    Energy Efficient Network Function Virtualisation in 5G Networks

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    Once the dust settled around 4G, 5G mobile networks become the buzz word in the world of communication systems. The recent surge of bandwidth-greedy applications and the proliferation of smart phones and other wireless connected devices has led to an enormous increase in mobile traffic. Therefore, 5G networks have to deal with a huge number of connected devices of different types and applications, including devices running life-critical applications, and facilitate access to mobile resources easily. Therefore given the increase in traffic and number of connected devices, intelligent and energy efficient architectures are needed to adequately and sustainably meet these requirements. In this thesis network function virtualisation is investigated as a promising paradigm that can contribute to energy consumption reduction in 5G networks. The work carried out in this thesis considers the energy efficiency mainly in terms of processing power consumption and network power consumption. Furthermore, it considers the energy consumption reduction that can be achieved by optimising the locations of virtual machines running the mobile 5G network functions. It also evaluates the consolidation and pooling of the mobile resources. A framework was introduced to virtualise the mobile core network functions and baseband processing functions. Mixed integer linear programming optimisation models and heuristics were developed minimise the total power consumption. The impact of virtualisation in the 5G front haul and back haul passive optical network was investigated by developing MILP models to optimise the location of virtual machines. A further consideration is caching the contents close to the user and its impact on the total power consumption. The impact of a number of factor on the power consumption were investigated such as the total number of active users, the backhaul to the fronthaul traffic ratio, reduction/expansion in the traffic due to baseband processing, and the communication between virtual machines. Finally, the integration of network function virtualisation and content caching were introduced and their impact on improving the energy efficiency was investigated

    HR practices at General Logistics Limited

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    This internship report is submitted in a partial fulfillment of the requirements for the degree of Master of Business Administration, 2016.Cataloged from PDF version of Internship report.Includes bibliographical references (page 25)The report is intended to focus on the Human resources practices at General Logistics LTD. Basically General Logistics LTD is a growing organization in the freight forwarding industry. GLL always try to maintain the government policies regarding employment issues. Many of Human resources policies and method is following by this organization. GLL is merging two departments like HR & Admin for operating their business. Under the HR department they are doing some common function of HR like planning, staffing, selection, recruitment, performance appraisal, Training and development etc. In the selection and recruitment process, HR department is following both internal and external recruitment. At first they are doing plan about their manpower requirement as well as budget against the employee. In every year HR is doing performance appraisal for knowing the efficiency of the employee in addition to promote the employee as per his performance. Apart from the HR department, the Admin department is also doing some major task in GLL. The regular functions of Admin department is attendance monitoring, leave management, motor vehicle management, logistics support etc. There is some dilemma in the GLL like they has no employee digital system, inefficient planning and forecasting, missing of OHS issues. So GLL should to implement the employee digital system, doing planning and forecasting in efficiently for getting exact output, implement OHS issues and making a policy for this. As a new organization, they are implementing new procedures in day by day. Although GLL has some lacking regarding HR issues but they are determined to reduce these lacking as soon as possible. Overall GLL’s Admin and HR department is doing well among other companies.Naima AhmedM. Business Administratio

    Primary Renal Squamous Cell Carcinoma: An Unusual Malignancy

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    Malignancies of the upper urinary tract are rare, accounting for about 8% of all malignancies of the renal system, presenting mostly as urothelial carcinoma. Squamous cell carcinoma (SCC) arising from the upper urinary tract is even more rare, accounting for about 0.5% of all malignancies of the renal system and 10% of all renal pelvic tumors. There are very few case reports in the indexed literature regarding renal squamous cell carcinoma. Here we present a case of SCC arising from the lower pole of left kidney, in a 35-year-old male resident of Muzaffarabad, Azad Kashmir
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