Internet - Based Security and Monitoring System

This study describes a remote monitoring and security system based on the Internt. It is intended to investigate the possibilities of using the integration of the Internet and telephone lines in providing solution to security problems by conveying alarm signals from remote monitored locations. developed to allow selected users to get monitoring and security information. A special purpose web server was designed to handle the system. This web server which is acting as a central monitoring station will supply the system's users with information reporting any intrusion at remote monitored locations The system utilised the existing telephone network , and user friendly in alarm transmission from remote monitored location. modem was used to maintain interface between the telephone line and the web server. data capturing from the modem through the serial port web server . Java language was used for developing a server program that is running in the back ground to enable data provided by the communication program to be put on the Internet for access. A graphical user interface (Java applets) implemented to allow users to access the system. The results of applying this approach showed the possibilities of using the integration of the Internet and telephone lines in conveying alarm signals and control command. It also emphasised the import developing software programs for Internet-based systems . Furthermore, is still required to fill the low-level interface gap that was not supported by Java language. Finally, Internet can be used not only for information exchange and retrieval, as a communication medium for monitoring and controlling of remote physical environments

Petrophysical Study and Formation Evaluation of Jake Reservoir, Block 6, Muglad Basin, Sudan

The study area (Jake oilfield) is located on the Western Escarpment of the Fula Subbasin of the Muglad Basin, which is bounded by the latitudes 11°20' and 11°36′ N and longitudes 28° 30′ and 29° 36′ E. This oilfield has been structurally subdivided into three main structures of Jake, Jake Central and Jake South. The goal of this study is to identify and to interpret the reservoir quality and properties (lithology, porosity, shale volume, and water saturation) and then to detremine sand continuity of Bentiu formation, to achieve this goal in successful way the information and data of three wells (Jake South -2, Jake South -3, Jake South -15) were made available, then the evaluation of the given data has been processed using the interactive petrophysic software (IP 3.6) version. The wireline logging and mud logging data had been carefully evaluated during the process of the data application, and data quality was thought to be good. Eventually, the results obtained using the shaly sand evaluation techniques, were in better agreement with core and test data. For the Reservoir and shale identification the most useful indicator was obtained from the behavior of the density and neutron logs. The neutron – density cross plot is the best method for lithology identification. Density – Neutron cross plot values had been used to identify the pure matrix and/related porosity, v-shale, porosity and water saturation models had been done and full interpreted from the initial results cut off parameters also determined and multi targets prospects of all wells had been marked, beside netreservoir and net-pay had been obtained successfully.In Jake South -2 (the maximum net pay thickness for Bentiu reservoirs is 48.2m and the minimum thickness is 3.66m, the average effective porosity is 17%, and the average water saturation is 48%), in Jake South -3 (the maximum net pay thickness for Bentiu reservoirs is 4.72m), the average porosity is 22%, and average water saturation is 86%). Hence in Jake South -15 (the maximum net pay thickness for Bentiu reservoirs is 28.12m, the minimum thickness is 4.5m, the average porosity is 18% and the average water saturation is 33%)

Voltage profile enhancement in distribution network using static synchronous compensator STATCOM

STATCOM is one of FACTS devices that used as regulator for transmission and distribution systems which works for reactive power compensation. STATCOM utilisation in distribution system mostly for enhancing the profile of voltage, where used for adjusting the disturbance voltage by injecting into the system a controllable voltage. This paper present a Fuzzy controller based on STATCOM to enhance the voltage profile in distribution network. The controller of STATCOM has simulated for different types of abnormal load conditions of balance and unbalance load. The results of simulation show ability of proposed design to enhance the load voltage which was 96% of the nominal value

Active and reactive power flow management in parallel transmission lines using static series compensation (SSC) with energy storage

The power flow controlled in the electric power network is one of the main factors that affected the modern power systems development. The Static Series Compensatior with storage energy, is a FACTS powerful device that can control the active power flow control of multiple transmission lines branches. In this paper, a simulation model of power control using static series compensator with parallel transmission lines is presented.  The control system using adaptive neuro-fuzzy logic is proposed. The results show the ability of static series compensator with storage energy to control the flow of powers components "active and reactive power" in the controlled line and thus the overall power regulated between lines.

Voltage profile Improvement Using Static Synchronous Compensator STATCOM

Static synchronous compensator (STATCOM) is a regulating device used in AC transmission systems as a source or a sink of reactive power. The most widely utilization of the STATCOM is in enhancing the voltage stability of the transmission line. A voltage regulator is a FACTs device used to adjust the voltage disturbance by injecting a controllable voltage into the system. This paper implement Nruro-Fuzzy controller to control the STATCOM to improve the voltage profile of the power network. The controller has been simulated for some kinds of disturbances and the results show improvements in voltage profile of the system. The performance of STATCOM with its controller was very close within 98% of the nominal value of the busbar voltage

A new form of peer feedback technique :an investigation into the impact of focusing Saudi ESL learners on macro level writing features

PhD ThesisAlthough many researchers have explored the use of Peer Feedback (PF) in writing (e.g., Hu & Lam, 2010), several have reported concerns with this technique, such as a tendency to shift most of the attention to micro features (e.g., mechanics, vocabulary) while giving little attention to macro features such as organisation and coherence (e.g., Van Steendam et al., 2010), even though macro features can be argued to be a highly important aspect of good writing (Truscott, 1996). This is one of the factors that have led researchers (e.g., Gielen et al., 2010b) to propose forms of this technique in which emphasis is placed on particular aspects of the PF process. This study introduces one such form of PF technique which requires learners to focus on macro features in writing and the teacher to focus on micro features, in order to give learners more time to critique essays at a macro level while receiving micro level FB from a reliable source. The study investigates the impact of the introduced form on: learners’ motivation to use PF and to learn writing; learners’ attitudes towards PF and towards writing; learners’ linguistic progress, and learners’ preference for giving and receiving macro and/or micro level feedback when practising PF technique. The research was conducted on 41 Saudi Arabian undergraduate students in their final year of an English degree course. An action research approach was adopted using a one-group design, with the PF activities divided into two consecutive phases. During the first phase, subjects practised the conventional use (i.e, providing PF on macro and micro features) of this technique (T1), while during the second phase they practised the new form of the technique (T2). The data were gathered over 15 weeks from pre-, mid- and post-tests; pre-, mid- and post-questionnaires; mid- and post-interviews; field notes; documentary evidence, and recording of several verbal protocol sessions. The findings suggest that both treatments can have a significant impact on the overall quality of learners’ writing, with the second treatment resulting in significantly better quality. Despite these findings, the learners showed a strong preference for conventional PF, suggesting they have difficulty in accepting the prohibition from providing PF on micro features owing to a negative transfer effect from their previous experience of approaches to teaching writing, which placed a great emphasis on the importance of micro features. It is likely that this transfer effect may be found in other contexts with a similar approach to teaching writing; further research is needed in order to test this hypothesis. In addition, in this study, the participants did not have the chance to see how much better they performed in their post-test, which raises the question of whether or not their views would have changed if they had.King Saud University (KSU)

A study of cohesion in international postgraduate Business students’ multimodal written texts: an SF-MDA of a key topic in finance

Empirical research studies of finance students’ language use have investigated students’ performance in finance courses and the effect of class attendance on students’ performance.Similarly, research on accounting students’ texts has been directed at readability of accounting narratives and lexical choices. Systemic Functional Linguistics (SFL) based research in multimodal communication and representation has been confined to school and workplace contexts. Whereas multimodal communication investigations in tertiary contexts has been conducted across the fields of mathematics, science and computing, and nursing, business courses have not been explored. The purpose of this paper is to report on a case study designed to investigate the key multimodal academic literacy and numeracy practices of ten international Master of Commerce Accounting students enrolled at an Australian university. Specifically, it aims to provide an account of the salient textual and the logical patterns through the analysis of cohesive devices in a key topic in the Principles of Finance course, namely capital budgeting techniques and management reports. This study is pertinent as most international ESL/EFL students’ enrolments in Australia and elsewhere is in business programs. This study is underpinned by Halliday’s (1985) Systemic Functional Linguistics (SFL) approach to language and Halliday and Hasan’s (1976) cohesion analysis scheme. The study employs a Systemic Functional Multimodal Discourse Analysis (SF-MDA) for the analysis of cohesive devices in the participants’ multimodal texts. Lexical cohesion formed the largest percentage of use, and in particular repetition of the same lexical items, followed by reference.The findings contribute to the description of the meaning-making processes in these multimodal artefacts. They provide a potential research tool for similar investigations across a broad range of educational settings. Implications of the findings for finance students and educators are finally presented