Böcker av Hidaia Mahmood Alassouli

Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakersThe function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement.The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When |I'| exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open.System-protection components have the following design criteria:¿ Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages.¿ Selectivity: Avoid unnecessary, false trips.¿ Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise.¿ Economy: Provide maximum protection at minimum cost.¿ Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection.The book consists from the following sections:1. Chapter 1: Power System Faults:2. Chapter 2: Instrument Transformers.3. Chapter 3: Overcurrent and Earth Fault Protection Relays.4. Chapter 4: Radial System Protection.5. Chapter 5: Zones of Protection.6. Chapter 6: Differential Relays.7. Chapter 7: Distance Relays.8. Chapter 8: Transformer Protection.9. Chapter 9: Generator Protection.10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers.12. Chapter 12: Fuses.13. Chapter 13: References.¿

Matlab SimPowerSystems is a modern design tool that allows scientists and engineers to rapidly and easily build models that simulate power systems. Not only can you draw the circuit topology rapidly, but your analysis of the circuit can include interactions with mechanical, thermal, control, and other disciplines. The paper covers some case studies that provide detailed, realistic examples of how to use SimPowerSystems in power system analysis. The following types of studies are covered on the paper:1. Thyristor-Based Static Var Compensator: Study the steady-state and dynamic performance of a static var compensator (SVC) on a transmission system.2. Transient Stability of a Power System with SVC and PSS: Study of the application of static var compensator (SVC) and power system stabilizers (PSS) to improve transient stability and power oscillation damping of the system. 3. GTO-Based STATCOM: Study the steady-state and dynamic performance of a static synchronous compensator (STATCOM) on a transmission system. 4. Control of load flow using UPFC: Study the steady-state and dynamic performance of a unified power flow controller (UPFC).5. Variable-frequency Induction Motor Drive: Study of a PWM inverter is used as a variable-voltage, variable-frequency source to drive an induction motor in variable-speed operation.6. Chopper-Fed DC Motor Drive: Study of a DC motor drive with armature voltage controlled by a GTO thyristor chopper.7. VSC-Based HVDC Link: Modeling of a forced-commutated voltage-sourced converter high-voltage direct current (VSC-HVDC) transmission link.

This is Arabic book talks about various topics about Envy, Jinn Touching and Magic ساتطرق في كتابي هذه لمواضيع حيويه عن السحر والحسد والمس بالجن. السبب عن كتابه مقالات عن موضوع الحسد والمس والسحر انني اشاهد كثيرا فيديوهات عن موضوع الحسد والمس والسحر. وهناك فوضى عارمه وغير وضوح او ترتيب في المعلومات حولها. لهذا تجد نسبه كبيره من الناس تنكر المس بالجن بسبب فوضى المعلومه حوله. وحتى لا انسى ما اسمعه واضطر ان اعود للفيديوهات الطويله فانني اوثقه بالكتابه. اما الجن والحسد والمس والسحر فهي مسلمات. الذين يؤمنون ببعض ما جاء به القرءان ولا يستطيعون استيعاب بعض الغيبيات به يحاولون ان يكذبوا وجود الجن، فانني اقر انه لم ياتي الجن ناحيتي قط مع اني اكتب عنهم لانني محصنه بالعلم وذكر الله. ولا ادعي العلم بعالمهم كما لا اخشاهم. لكن رايت حالات تلبس كثيره بعيني سواء عند الشيخ احمد نمر في قطاع غزه عام 1998 او في فيديوهات بالنت عرضت بعضها.انسوا مقالاتي ا يحتوي كتابي مقالاتي التاليه 1. حول الخلاف بين الاطباء النفساويين وشيوخ الدين المعالجين لحالات المس بالجن 2. العين والحسد .. اسبابهم واعراضهم وعلاجهم 3. القرين 4. المس بالجن .. اعراضه وطرق حضوره وطرق صرفه 5. السحر .. تعريفه وحكمه وانواعه واركانه 6. ايات الرقيه الشامله 7. سحر التصفيح 8. الجن العاشق 9. تجربه ساحر مع السحر 10. كيف يعلم الساحر الغيب 11. اهم كتب السحر والعلوم الروحانيه 12. الحجامه وعلاقتها بالامراض الروحيه 13. سحر الجلب والمحبه والقبول 14. سحر الربط عن الجماع (الثقاف) أنواعه - أعراضه - علاجه 15. سحر التفريق 16. اسماء وقصة ملوك الجن السبعة الارضيين من كتاب شمس المعارف الكبرى 17. تحليل لما يكون قد حدث مع المرحومه اسراء غريب بناء على اللقاءات مع اهلها وخطيبها 18. راي معارض للكاتب المفكر رمضان عيسى الذي ينكر المس بالجن

This project shows some selected signal techniques, including image and audio processing, using the Matlab digital signal processing and image processing toolboxes. The project is divided to 3 parts.The project is divided to 3 parts.Part I includes design and implementation of different types of filters for filtering signal that has different sinusoidal frequency components or noise. The comparison was made between FIR low pass flter, butterworth filter, Chebycheve Type I low pass filter and Chebycheve Type II low pass filter. Then different types of IIR Butterworth filters were designed and implemented to filter a signal that has many harmonics components, including low pass filter, high pass filter, stop band filter and band pass filter.Part II examined audio filtering in the sense of specific frequency suppression and extraction. There are many different types of filters available for the construction of filters. We will specifically use the Butterworth filter. An audio signal was read and different types of filters, including low pass filter, high pass filter, stop band filter and band pass filter, were designed and implemented in order to filter the audio signal from some frequency bands. Then the discrete cosine transform compression examined on the audio signal at different compression rates.Part III deals with image processing; the project shows examples in smoothing, sharpening, and edge detection. Other useful operations on the image were tested, including image cropping, image resizing, image, histogram equalization and altering image brightness

Power systems have two components of apparent power: active and reactive power. Both components are necessary for functioning of electrical systems. The active power is the average power absorbed by the resistive load. The reactive power is the measure of energy exchange between the source and reactive power of load. Energy storage devices do not dissipate or supply power, but exchange power with the rest of system. Active power is the one that is converted to other forms of energy in the load yet reactive power is only responsible for magnetizing purposes. Power factor is a ratio depicting how much of the power supplied is real. The reactive current contribute in the value of the overall magnitude of current in transmission lines causing unnecessarily high line currents and low power factor. Since a low power factor means higher amount of apparent power need to be supplied by the utility company, thus the company must also use bigger generators, large transformers and thicker transmission/distribution lines. This requires a higher capital expenditure and operational cost which usually result in the cost being passed to the consumer.In this research, we seek to identify the effects of a low power factor on Swaziland Electricity Company's power supply system and recommend possible solutions to the problem. The results are useful in determining how to optimally deliver power to a load at a power factor that is reasonably close to unity, thus reducing the utility's operational costs while increasing the quality of the service being supplied.

The thesis will try to summarize the major power system problems and the important role of the FACTS devices to enhance the power system quality. Then, it will give a brief description for various FACTS and Active Filters controllers as mentioned on the existing publications. This work is devoted to find a proper optimal control schemes for a system with series or shunt or series and shunt converters that can provide all functions together.Various optimal control schemes will be designed for systems with series, shunt and series-shunt converters with the objective to control the load flow through a lines and to eliminate current harmonics and voltage flickers with different strategies for tracking. ¿ Chapter 1: Gives a general description of most power system problems and the basic techniques used to improve the power system quality. It also gives idea about basic objectives from the FACTS devices.¿ Chapter 2: Offers detailed description for the basic types of FACTS devices and active filters existing in power industry.¿ Chapter 3: Describes various shunt controllers for control of the Static Compensator (STATCOM) and various series controllers for the control of the Static Synchronous Series Compensator (SSSC) and various Unified Power Flow Controllers (UPFC) as covered in most existing papers.¿ Chapter 4: Describes the major control schemes for the shunt active filter as covered by most existing papers.¿ Chapter 5: Describes the major control schemes for the other types of active filters as covered by most existing papers.¿ Chapter 6: Gives description for optimal control design.¿ Chapter 7: Case studies to design different optimal control schemes for system with UPFC unit to control the power flow, eliminate voltage flicker and eliminate current harmonics. The case studies were repeated for system with only series or shunt converters.

This is Arabic book that includes: Selection of the Author's Best Articles on Various Issues to Combat Corruption and Tyranny انا الكاتبه دكتوره هدايه محمود محمد العسولي. قمت بتاليف عدد كبير من الكتب باللغة العربية واللغة الإنجليزية فيما يخص العديد من الموضوعات العلمية والثقافية. اكتب العديد من المقالات باسم مستعار واقوم بنشرها في العديد من المواقع الإلكترونية. تتركز مقالاتي حول مكافحه الفساد . ونشرت مؤخرا عده كتب تحوي على مختارات من احدث مقالاتي حول مكافحه الفساد. في هذا الكتاب احاول نشر احدث ما كتبته من مقالات . سأقسم كتابي هذا الى عده اقسام، حسب تصنيف القضيه التي يتناولها الموضوع. 1) قضايا سياسيه. 2) قضايا مؤسساتيه. 3) قضايا اجتماعيه. 4) قضايا الكترونيه.

This is Arabic book that talks about Palestine and Israel History. يسرد كتابي هذا تسلسل لمعظم إحداث تاريخ فلسطين القديم والحديث حتى اليوم. يشمل هذا الكتاب الفصول التالية الفصل الاول قدسيه فلسطين في الاسلام. الفصل الثاني تاريخ فلسطين قبل الاسلام. الفصل الثالث تاريخ فلسطين في عهد الاسلام قبل قيام الدولة الفاطمية. الفصل الرابع تاريخ فلسطين في عهد الدولة الاخشيديه وعهد الدولة الفاطمية. الفصل الخامس تاريخ فلسطين لدى قيام الحملات الصليبية واحتلال الصليبيين للقدس. الفصل السادس نهضه الحركة الجهادية بقياده نور الدين الزنكي وتحرير القدس من الصليبيين بقياده صلاح الدين الايوبي. الفصل السابع حروب صلاح الدين الايوبي مع الصليبيين وتحريره بيت المقدس. الفصل الثامن ضعف الايوبيين بعد موت صلاح الدين الايوبي. الفصل التاسع يسرد هذا الفصل تاريخ فلسطين خلال الحكم المملوك. الفصل العاشر يسرد هذا الفصل تاريخ فلسطين خلال الحكم العثماني. الفصل الحادي عشر تاريخ فلسطين خلال الانتداب البريطاني في فلسطين. الفصل الثاني عشر يسرد هذا الفصل ابرز الاحداث ما بعد انتهاء الانتداب البريطاني في فلسطين حتى نكبة عام 1967 م. الفصل الثالث عشر تاريخ فلسطين ما بعد نكبة عام 1967م حتى قيام الانتفاضة الاولى. الفصل الرابع عشر تاريخ فلسطين ما بعد قيام الانتفاضة الاولى حتى وفاة الرئيس عرفات. الفصل الخامس عشر تاريخ فلسطين بعد وفاة الرئيس عرفات. الفصل السادس عشر نبذه عن معتقدات اليهود وتحريفاتهم بالتوراة ونظامهم السياسي وأحزابهم السياسية وتطلعاتهم. الفصل السابع عشر نبذه عن الكاتبه هذا مع العلم انني اعود بالفضل لا شرطه الدكتور طارق السويدان حول تاريخ فلسطين القديم والحديث في اعداد هذا الملخص.

This is arabic book that includes selections from the Author's Articles on political, economic, social, institutional and religious Issues, Issued in 2022 انا الكاتبه دكتوره هدايه محمود محمد العسولي. قمت بتاليف عدد كبير من الكتب باللغة العربية واللغة الإنجليزية فيما يخص العديد من الموضوعات العلمية والثقافية. لدي اوراق عمل كثيرة في مختلف المجلات العلمية والمؤتمرات. كما لي كثير من الكتب منشوره في مواقع نشر الكترونيه ؟ قمت بتأليف عدد كبير من الكتب باللغة العربية واللغة الإنجليزية فيما يخص العديد من الموضوعات العلمية والثقافية. اكتب العديد من المقالات باسم مستعار "سهيله عمر"، واقوم بنشرها في العديد من المواقع الإلكترونية. ونشرت مؤخرا العديد من الكتب التي تحوي على مختارات من مقالاتي حول قضايا سياسيه واجتماعيه واقتصاديه ودينيه. تستطيعون ان ترجعوا لمقالاتي خلال الاعوام السابقه بكتبي التي سبق نشرها وبموقعي الرسمي. بما انني اكتب كل عام مقالات جديده لم تنشر في كتبي السابقه، فانني اعد كل عام كتاب جديد يحوي مختارات من اهم مقالاتي القديمه والجديده معا. واعرض هنا مجموعه من مقالاتي حول العديد من القضايا السياسيه والاقتصاديه والاجتماعيه والمؤسساتيه والدينيه اصدار عام 2022.كما اعرض بعض المختارات الفكريه والتوعويه لمفكرين عرب في قسم منفصل. يتضمن كتابي هذا المقالات التاليه 1. مختارات فكريه حول قضايا سياسيه واقتصاديه. 2. مختارات فكريه حول قضايا اجتماعيه ومؤسساتيه. 3. مختارات فكريه حول قضايا دينيه. 4. مختارات فكريه وتوعويه لمفكرين عرب. 5. نبذه عن الكاتبة.

Phone number apps are software that enables you to send messages, Wi-Fi, and cellular calling. Phone number apps are used to make a call, record, and transfer a call, and send customize the greetings. They also are used to send unlimited SMS and MMS. Second Phone Number apps enable you to select a custom phone number and pace phone calls. This ideal when you do not want to share your real number. The objective of this book is to evaluate some phone number apps. The book consists from the following parts:1. Overview about the Phone Number Apps:2. Quick comparison between some Second Phone Number Apps covered in the book:3. How to solve the problem that the Google Play Store Application not supported in your country:4. List of some good Virtual Private Network Services VPN :5. How to install Google Pay mobile App:6. How to install PayPal Mobile App:7. How to install Mobile ID changer App:8. Installing Multiple Accounts Apps9. Evaluation of some Virtual Phone Number Services that can provide USA and Canada Phone Numbers only such as. Such as:Textnow, Sideline, GoDaddy Smartline, Line2,Google Voice,textfree,Nextplus, Textplus, CoverMe, RingCentral,Voxdirect, RingCentral,Mightycall10. Evaluation of some Virtual Phone Number Services that can provide Phone Number Services on certain countries. Such as:Virtual Sim, Sonetel, Flyp, Telos, Numero eSIM, Numberpeople, TalkU, Wabi, AntiPhone, Phoner, Smscodes, PingMe, 2nd phone number11. Evaluation of some Virtual Phone Number Services that did not work under my country Palestine using VPN or did not work properly because of un identified reason. Such as:Textme, Textme UP, Freetone, Dingtone, Talkatone, Burner, Ring4, Cloud SIM, Secure messenger SafeUM, Hushed, 2nr Darmowy Drugi Number, 2ndLine, Twilio.

Current-limiting fuses are widely used to protect the thyristors in dc drive systems. In the event of the commutation failure when regenerating (inverting), the fuses need to interrupt in loop supplied by the ac and dc voltages acting in series which is the most difficult case for protection by fuse.In this paper, a detailed study of the complete interruption process has been investigated by modeling of arcing process of the fuse. The effect varying the motor time constant, supply impedance, number of fuses used to clear the fault and dc machine rating to the total response for fuses protecting against the regenerative circuit internal commutation fault has been studied. The model of 200A fuse is employed in this study and fuses in series with the semiconductor devices (F1) and fuses in ac line (F2) are both considered.

The objective of this work is to develop a Word Press Online Store with Different Ecommerce Plugins and Themes and Word Press Online Magazine with MH Magazine ThemeThe work consists of three parts:i. Part I: Building Personal Website with online shop to sell E-books: The objective of this part is to develop an Ecommerce word press website with all commonly used Plug-ins.ii. Part II: Building Ecommerce website with mystyle theme and WooCommerce pluginThe objective of this part is to develop an Ecommerce website with mystyle theme and WooCommerce plugin and other commonly used Plug-ins.iii. Part III: Building Online magazine website with MH-Magazine themeThe objective of this part is to develop an online magazine website with MH Magazine theme and other commonly used Plug-ins.

Cloud Platforms provide VM images in the Linux OS as well. Linux has always been operated via terminal or shell through a keyboard and a terminal. Even with GUIs around, Linux continues to be operated from the shell.Linux VMs are also operated from the command line of your desktop via an SSH (secure shell) connection. They do not have a desktop environment or GUI installed by default. For Windows users migrating to Linux, a desktop environment would be more convenient to operate. Hence, various desktop environments can be set up on a Linux VM.Mostly we need to have Graphical User Interface GUI on the Linux Virtual Machine instance and to use Internet browser on it.This report will talk about the steps to install minimum required User Interface on VM (virtual machine) with Web Browser. We will work on installing a desktop environment on a Linux Virtual Machine on different Cloud Platforms. The book consists from the following sections:1. Generating SSH key for auto log in to Linux server.2. Creating Google Cloud Linux Virtual Machine.3. Logon to the Linux Virtual Machine4. Installing VNC server.5. Installing XRDP server.6. Installing a Graphical User Interface (GUI) for Linux Google Cloud instance and connecting to the server through VNC or RDP connection.7. Quick guide to create a Linux virtual machine in Cloudsigma.8. Quick guide to create a Linux Virtual Machine in the Microsoft Azure portal.9. Quick guide to create a Linux Virtual Machine in Amazon AWS.¿¿

The paper aim is to configure Apache Server to support ASP. Two methods were tested. The first, by installing Bundle::Apache::ASP, and the second, by installing SUN ONE ASP Server. Two possible options for connecting to a Microsoft Access database with Sun ONE ASP for UNIX or Linux, using the using SequeLink, and using the Sun ONE ASP Database Publisher tool to migrate an Access database to MySQL, were studied.The paper is composed from the following parts,1. Setting up working environment when working with CodeCharge Studio program, software for building web applications.2. Connecting to databases in ASP.3. ASP program example.4. Configuring apache server to support ASP by installing Bundle::Apacahe::ASP.5. Configuring apache server to support ASP by installing Sun ONE ASP.

configured the Postfix mail server to support Anti-Spam and Anti-Virus, using two methods.¿ Method 1: With Postfix, SpamAssassin, ClamAV and Amavis-new¿ Method 2: With Postfix, SpamAssassin, ClamAV and ProcmailThe report includes the following sections1. How Postfix receives mail:2. How Postfix delivers mail3. Starting guide for quick Postfix configuration4. Postfix mail server and Dovecot configuration5. Installing ClamAV and SpamAssassin6. Installing and configuring Squirrelmail:7. Method 1 to support Antivirus and Antispam: Using Postfix, Amavis-new, ClamAV, SpamAssassin8. Method 2 to support Antivirus and Antispam: Using Postfix, Procmail, ClamAV, SpamAssassin

Power Quality can be defined as the characteristics of the electricity at a given point on an electrical system, evaluated against a set of reference technical parameters. These parameters might relate to the compatibility between electricity supplied on a network and the loads connected to that network.The voltage waveform is normally distorted, and we have the so called Power Quality disturbances such as; voltage dips/swells, transients, harmonics and voltage unbalance amongst others. The study of Power Quality encompasses the Power Quality disturbances, as well as Power Quality standards, and Power Quality Monitoring.This project will tackle the subject of Power Quality, Power Quality Disturbances, Power Quality Standards as well as Power Quality Monitoring. A general description of each of the disturbances will be given, and the basic techniques which are used to mitigate that disturbance so as to improve the quality of the supply are presented.The book consists from the following parts:1. Abstract2. Chapter 1 Introduction3. Chapter 2 Literature Review On Power quality Disturbances 4. Chapter 3- Power Quality Standards 5. Chapter 4 Power Quality Monitoring6. Chapter 5- Results and Discussion of Results7. Chapter 6- Conclusion, Recommendations and Future Work8. References9. Appendices

This work is a step-by-step "how to" guide for configuring Samba file server, Quota andscheduled backup of important files. The paper provides an installation guide for,1. Samba server.2. Quota.3. Scheduled backup of important files.

Zoom is a video telephony software program developed by Zoom Video Communications. Zoom is a free (plus paid-for options) video conferencing tool that can be used on PCs, Macs and mobile devices. The free plan provides a video chatting service that allows up to 100 participants concurrently, with a 40-minute time restriction, and there are lots of features to support collaborative working.In this report, I'll just give quick guide on how to sign up and use the Zoom application. The report contains the following sections:1. Downloading and installing the Zoom application.2. Starting new immediate meeting.3. Joining a meeting.4. Scheduling a meeting.

This is Arabic book that talks about History of Religions and Civilizations. عمل الشيخ د ممدوح الحربي سلسله فيديوهات عن كافه الاديان والحركات السياسية والطوائف الدينية. وكتابي هذا اعددته لدى محاولاتي لتوثيق ما اسمعه في سلسه فيديوهات د ممدوح الحربي حول تاريخ الاديان والحضارات لأهميته. علما ان ما جاء في الكتاب مجرد نقل عما جاء بفيديوهات الشيخ ممدوح الحربي ولا يمثل رايي، واختلف عما جاء بفيديو هاته بعديد من النقاط. واهم المواضيع التي تطرق اليها الكتاب 2) نبذه عن الكاتبة 3) حول سلسله فيديوهات الشيخ ممدوح الحربي المتخصص في تاريخ الاديان والحضارات 4) القسم الاول مواضيع مختصه بالأديان والتنظيمات والمدارس التابعة لأهل الكتاب اليهود والنصارى - 4.1 اليهودية - 4.2 النصرانية - 4.3 الماسونية - 4.4 الموساد الاسرائيلي - 4.5 الأصولية الإنجيلية او الصهاينة الجدد - 4.6 جماعه كو كلوكس كلون - 4.7 مذهب اليهود الكابالا - 4.8 الاقصى ام الهيكل - 4.9 العلمانية - 410 الليبرالية - 4.11 نبذه عن معتقدات اليهود وتحريفاتهم بالتوراة ونظامهم السياسي وأحزابهم السياسية وتطلعاتهم 5) القسم الثاني مواضيع مختصه بالأديان والتنظيمات والمدارس الإسلامية - 5.1 الصوفية - 5.2 القدس لن يرثها الا عباد الله المسلمين الصالحين - 5.3 جماعه الاخوان المسلمين - 5.4 تنظيم الدولة الإسلامية - 5.6 حزب الله اللبناني والبحريني والسعودي والكويتي واليمني - 5.7 الشيعة الدروز - 5.8 الشيعة النصيرية العلوية - 5.9 الشيعة الزيدية - 5.10 الشيعة الإسماعلية - 5.11 البهائية البابيه - 5.12 اليزيدية 6) القسم الثالث مواضيع مختصه باديان وتنظيمات ومدارس اخرى - 6.1 الشيوعية - 6.2 مدرسة تحضير الارواح - 6.3 مدرسة السحر والسحرة - 6.4 الهندوسية - 6.5 البوذية - 6.6 السيخية - 6.7 العنصرية - 6.8 المجوسية الزرادشتية

The paper concerns about basic Microsoft ISA server and Linux Squid Server configuration As a lot of technicians switch between ISA server and Squid server, I decided to write this paper to present some reference when configuring ISA and Squid. There a lot of issues that not covered, and you can go to the manual of ISA server and Squid server for detailed configuration of ISA and Squid.The paper is composed from two parts1. Microsoft ISA server 2004 Configuration2. Linux Squid Server Configuration

The paper evaluates some the security tools. Top security tools can be found in Sectools. org. Most important vulnerabilities in Windows and Linux can be found in sans. org/top20/.The paper covers the installation and configuration of the following security tools:¿ LANguard¿ Nessus¿ Snort¿ BASE¿ ACID¿ Rman¿ SnortCenter.¿ OSSEC¿ Sguil

It is common these days for a single system to host many domains, for example uniswa. com and mtn. com or acme. com may run on a single host machine, but behave as if they were on three different hosts. A system usually has a canonical domain, it has its usual or local domain name, and additional domains are configured as virtual domains. The purpose behind this work is to create a mail server solution based on Postfix that is based on virtual users and domains, i. e. users and domains that are in a MySQL database. The goal is to have completely virtual users and domains. This means creating a separate name spaces for reach domain.It will also demonstrate the installation and configuration of Courier-Imap (IMAP/POP3), so it can authenticate against the same MySQL database Postfix uses. The resulting postfix server is capable of quota which is not built into Postfix by default; the project will demonstrate how to patch postfix appropriately. Passwords are stored in encrypted form in the database. The work also covers the installation of Mail Scanner, SpamAssassin and ClamAv so that emails will be scanned for spams and viruses. The administration of MySQL database can be done through a web based tool Postfixadmin or can be done manually in the MySQL shell. Postfixadmin is a web based management tool created for Postfix that handles Postfix style virtual domains and users that are stored in MySQL. The squirrelmail web based email client is installed.

In this report, I will speak about the academic corruption I noted in some universities and academic institutions according to my experience with them.I will review also the abusive practices against me by some book publishing websites such as Ingramspark that arbitrarily closed my publishing accounts without reasonsI will provide also a summary of the difficulties I encountered in electronic money transfer and online shopping due to the financial blockade against the Palestinians.The report will consist from the following parts1. Academic Corruption in Higher Colleges of Technology in Dubai2. Academic Corruption in University of Swaziland.3. Some stories of corruption I met in Gaza Strip institutions.4. General profile about my education and experiences with some stories of corruption I met.5. Academic Corruption in Palestinian Universities.6. The corruption in Palestinian Energy and Natural Resources Authority - PENRA and Electrical Companies.7. Scandals of some websites for publishing books such as Ingramspark and other publishing websites that arbitrarily closed my accounts without reasons.8. My detailed complaint about Ingramspark that recently closed four accounts for publishing for me without the slightest reason.9. Brief description of my complaint about Ingramspark that closed four accounts for publishing for me without the slightest reason:10. Summary of the difficulties I encountered in electronic money transfer and online shopping due to the financial blockade against the Palestinians.

Faults studies form an important part of power system analysis. The problem consists of determining bus voltages and line currents during various types of faults. If the fault location is known the problem can be easily solved. But if the fault location is unknown, it is difficult to solve the problem. If the fault location is known the problem can be easily solved. But if the fault location is unknown, it is difficult to solve the problem. There were attempts to find the critical distance of a fault that will cause certain per-defined voltage dip at certain bus, and the problem was easy to be solved in radial systems, but yet non of the existing researches could provide proper solution for finding the critical distance of the fault at certain line that will cause predefined voltage dip magnitude at certain bus in meshed power system. The paper provided proper solution based in Gauess Seidal to find the critical distance in meshed power system