Hamza Ali

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Huge carbuncle of the neck with intracranial extension: a case report

International Surgery Journal, 2018

A carbuncle is a coalescence of several inflamed follicles into a single inflammatory mass with p... more A carbuncle is a coalescence of several inflamed follicles into a single inflammatory mass with purulent drainage from multiple sinuses. They can develop in healthy individuals with no predisposing conditions or in immune-compromised ones. Author are presenting a case report of 57 years old Saudi presented with neglected huge carbuncle of the neck that was found complicated with intracranial extension in the posterior cranial fossa. He underwent successful simultaneous excision of the carbuncle and debridement of gross necrotic tissues; together with evacuation of the intracranial abscess. Both general and neurosurgical teams were involved. Patient made uneventful recovery and discharged home in good condition.

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Pipe Drafting and Design

escape the numerous quality control checks performed during the manufacturing process. As a resul... more escape the numerous quality control checks performed during the manufacturing process. As a result, the American National Standards Institute (ANSI) developed strict guidelines for the manufacture of pipe. Pressure Piping Code B31 was written to govern the manufacture of pipe. In particular, code B31.1.0 assigns a strength factor of 85% for rolled pipe, 60% for spiral-welded pipe, and 100% efficiency for seamless pipe. Generally, wider wall thicknesses are produced by the seamless method. However, for the many low-pressure uses of pipe, the continuous welded method is the most economical. Seamless pipe is produced in single and double random lengths. Single random lengths vary from 16-0 to 20-0. Pipes 2 and below are found in double random lengths measuring from 35-0 to 40-0. SIZING OF PIPE Just as manufacturing methods differ, there are also different ways to categorize the size of a pipe. Pipe is identified by three different size categories: nominal pipe size, outside diameter, and inside diameter (see Figure 2.5). Nominal pipe size (NPS) is used to describe a pipe by name only. It is essentially a &quot;reference&quot; size and does not translate to an exact diameter measurement of pipes 12 and smaller. In process piping, the term nominal simply refers to the name of the pipe, much like a 2  4 piece of lumber. A 2  4 board does not actually measure 2  4, nor does a 6 pipe actually measure 6 in diameter. It is just a convenient and easy way to identify pipe and lumber. Outside diameter (OD) and inside diameter (ID), as their names imply, categorize pipes by their true outside and inside measurements. One of the complexities of pipe design is that different sizes of pipes are manufactured differently. Pipe sizes (NPS) 1 ⁄8  through 12 have an outside diameter greater than its nominal pipe size, whereas pipe sizes 14 and above have an outside diameter equal to its nominal pipe size. In process piping, the aforementioned method of sizing the pipe maintains a uniform outside diameter while varying the inside diameter. This method achieves the desired strength necessary for the pipe to perform its intended function while operating under various temperatures and pressures. WALL THICKNESS Wall thickness is the term used to describe the measurement of how thick the metal is that a pipe is made from. There are three systems in which a pipe&#39;s wall thickness can be categorized: the weight system, the schedule system, and the fractional/decimal system. The weight system uses three categories to define the thickness of a pipe: standard, extra strong, and double extra strong. Limited in number, these three pipe thicknesses restrict a pipe designer&#39;s options. Over time, pipe selection has increased in complexity. With the development of new chemical processes, the methods of manufacturing pipe have expanded to meet process requirements. Such a wide array of commodity possibilities, with their ever changing corrosive properties and their extreme range of temperature and pressure variances, has necessitated the manufacture of pipe in additional wall thicknesses. Now called schedules , these additional wall thicknesses allow a designer to specify a particular pipe that will meet the exact requirements needed for quality installation and safe FIGURE 2.1 Sizing seamless pipe. FIGURE 2.2 Shaping butt-welded pipe. FIGURE 2.3 Forming spiral-welded pipe. FIGURE 2.4 Manufactured carbon steel pipe.

Object Oriented Methodology for Component Based Software Architectures

Citeseer

Page 1. The International Journal of ACM Jordan (ISSN 2078-7952), Vol. 1, No. 1, March 2010 9 Obj... more

Enhanced Traveling Salesman Problem Solving By Genetic Algorithm Technique (Tspga)

The well known NP-complete problem of the Traveling Salesman Problem (TSP) is coded in genetic fo... more The well known NP-complete problem of the Traveling Salesman Problem (TSP) is coded in genetic form. A software system is proposed to determine the optimum route for a Traveling Salesman Problem using Genetic Algorithm technique. The system starts from a matrix of the calculated Euclidean distances between the cities to be visited by the traveling salesman and a randomly chosen city order as the initial population. Then new generations are then created repeatedly until the proper path is reached upon reaching a stopping criterion. This search is guided by a solution evaluation function.

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The USMCA and Investment: A New North American Approach?

Canada and International Affairs, 2021

Serialization and Deserialization

The C# Programmer’s Study Guide (MCSD), 2017

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Implementing Delegates Events

The C# Programmer’s Study Guide (MCSD), 2017

In any modern language, event-driven development is used to structure a program around various ev... more In any modern language, event-driven development is used to structure a program around various events. These events perform a certain functionality when a certain condition satisfies, for example, close the application when a user clicks on the “Exit” button. Or shut down the system when the heat Temperature rises, etc.

Removal of Congo Red from Aqueous Solution by Circulating Fluidized Bed(CFB)

In this study circulating fluidized bed was adopted to remove of Congo Red from wastewater using ... more In this study circulating fluidized bed was adopted to remove of Congo Red from wastewater using Eichhornia crassipes as a adsorbent. Solution flow rate(6,12 and 18)l/hr, bed height(2,4 and 6) cm and Congo Red initaial concentration (10,25 and 50)mg/l were examined in experiments to show their effects on breakthrough curves and time required to reach the adsorbent to fully saturated curve. The mass transfer coefficient "KL"decreased with decreasing the liquid flow rate. The minimum fluidization velocities of bed found equal to 1.6, 2, 2.5 mm/s for heights of 2, 4,6 cm respectively. The increasing of the bed height will increase the contact time of the solute in the bed, and these improve the solute removal efficiency. the increasing in flow rate and initial concentration will increase the mass transfer rate. Keywords— Congo Red dye, Eichhornia crassipes. Circulating Fluidized Bed, Minimum fluidization velocity, Mass transfer

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Elimination of Congo Red Dyes From Aqueous Solution Using Eichhornia Crassipes

Iraqi Journal of Chemical and Petroleum Engineering, 2020

Water hyacinth (Eichhornia crassipes) is a free-floating plant, growing plentifully in the tro... more Water hyacinth (Eichhornia crassipes) is a free-floating plant, growing plentifully in the tropical water bodies. It is being speculated that the large biomass can be used in wastewater treatment, heavy steel and dye remediation, as a substrate for bioethanol and biogas production, electrical energy generation, industrial uses, human food and antioxidants, medicines, feed, agriculture, and sustainable improvement. In this work, the adsorption of Congo Red (CR) from aqueous solution onto EC biomass was investigated through a series of batch experiments. The effects of operating parameters such as pH (3-9), dosage (0.1-0.9 g. /100 ml), agitated velocity (100-300), size particle (88-353μm), temperature (10-50˚C), initial dye concentration (50-500) mg/l, and sorption–desorption were investigated to assess the efficiency of EC-elimination from aqueous solution. Different pre-treatments, alkali, and acid were achieved to increase the adsorption uptake. The optimum conditions for maximu...

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Rnglish

International Journal of Advanced Computer Research, 2016

Many people rely on public transportation, which provides them with movement and mobility from on... more Many people rely on public transportation, which provides them with movement and mobility from one place to another, transportation appears as an important mean to the students to travel from and to school and university . Some of the most important desired features, among transit riders are real-time transit tracking and arrival time prediction . The idea of our research became to our mind during our involvement in the current transportation system of the Applied Science University, which has three actors (Student, bus driver, and transportation manager). We have perceived that the mechanism of the transit process as the following: the transportation manager specifies the bus's paths, drivers and the bus's movement schedule, after that the driver starts his trip on a specific path, and students will be waiting on random locations on the path for bus arrival, when the bus reaches the student's location, the students will interact with the bus driver via hand signals in order to get on the bus.

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A Computer Simulation Model for Automated Quantification of Luteinizing Hormone Secretion

Journal of Computer Science, 2009

An automated software package is developed for quantifying Luteinizing Hormone (LH) release from ... more An automated software package is developed for quantifying Luteinizing Hormone (LH) release from pituitary gonadotropes in response to short pulses of gonadotropin-releasing hormone (GnRH). Approach: These computer programs were designed to accommodate the release mechanism that consists of three stages, namely; (1) Production of different concentrations of effectors (such as receptor-hormone binds, G protein interactions, inositol 1,4,5trisphosphate IP 3 ), (2) Release of Ca 2+ from the endoplasmic reticulum ER and finally (3) Release of LH through pumping of Ca 2+ in and out of the cytosol. Results: The programs were coded in C++ computer language and implemented on Pentium PC. The designed model was intended to help in explaining the characteristics of LH release in response to various duration and different concentrations of GnRH pulses in the presence and absence of external Ca 2+ . Conclusion: Features of the short-term responses were simulated and fairly understood using receptor binding, dimerization, interaction of the dimerized receptor with a G protein, production of effectors that open voltage sensitive channels in cell membrane and finally open the Ca 2+ channels in the ER and the Ca 2+dependent release of LH. Also, prediction of the varying concentrations of Ca 2+ effects and comparison with experimental data was made possible.

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Strict anaerobic Staphylococcus saccharolyticus isolates recovered from contaminated platelet concentrates fail to multiply during platelet storage

Transfusion, 2012

Characterization of the growth dynamics and biofilm formation of Staphylococcus epidermidis strains isolated from contaminated platelet units

Journal of Medical Microbiology, 2014

Bacterial contamination of platelet concentrates (PCs) poses the highest transfusion-associated i... more Bacterial contamination of platelet concentrates (PCs) poses the highest transfusion-associated infectious risk, with Staphylococcus epidermidis being a predominant contaminant. Herein, the growth dynamics of 20 S. epidermidis strains in PCs and regular media were characterized. Strains were categorized as fast (short lag phase) or slow (long lag phase) growers in PCs. All strains were evaluated for the presence of the biofilm-associated icaAD genes by PCR, their capability to produce extracellular polysaccharide (slime) on Congo red agar plates and their ability to form surface-attached aggregates (biofilms) in glucose-supplemented trypticase soy broth (TSBg) using a crystal violet staining assay. A subset of four strains (two slow growers and two fast growers) was further examined for the ability for biofilm formation in PCs. Two of these strains carried the icAD genes, formed slime and produced biofilms in TSBg and PCs, while the other two strains, which did not carry icaAD, did ...

Identity hiding by blind signature scheme

Proceedings of the 2nd WSEAS …, 2003

... Authors: Salah Albermany, Computer Science Department, Zarka Private University, Jordan. Hamz... more

Multi Purpose Code Generation Using Fingerprint Images

International Arab Journal of Information Technology, 2009

Extracting minutia and other features from fingerprint images is one of the most important steps ... more Extracting minutia and other features from fingerprint images is one of the most important steps in automatic fingerprint identification and classification. This paper proposes a method for the generation of long and secure code that may be used for multi-purpose applications, such as ATM, coded door locks and other security measures. The method consists of two phases; the first phase is carried out using fingerprint image enhancement and thinning. The second phase consists of extracting minutia, ridge ending, bifurcation and all other features in order to produce initial pattern. Finally the multipurposes secure code is generated by applying the one-way MD5 hash function on that pattern. The achieved results are discussed for security improvement. The proposed technique also shows considerable improvement in the minutia detection process in terms of both efficiency and speed.

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Timing Attack Prospect for RSA Cryptanalysts Using Genetic Algorithm Technique

This paper presents an approach to cryptanalysis of RSA cryptosystem based on the application of ... more This paper presents an approach to cryptanalysis of RSA cryptosystem based on the application of genetic algorithm. The search utilizes the idea of timing attack as computation time information may leak due to different modular operations throughout the RSA encoding. This approach suggests a speed up process, aiming at reducing the required number of plaintext-ciphertext samples needed for a successful timing attack. The proposed notion of timing attack outlined in this work with its preliminary implementation, have given encouraging results on RSA cryptosystem samples. Further work carried on to implement the idea of genetic algorithm technique to practical RSA system has demonstrated encouraging results.

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A Novel Genetic Algorithm Approach for Solving Flow Shop Problem

IJCSNS, 2008

Genetic algorithms simulate the survival of the fittest among individuals over consecutive genera... more Genetic algorithms simulate the survival of the fittest among individuals over consecutive generations for solving a problem. Prior work has shown that genetic algorithms generally do not perform well for shop problems . This paper proposes a solution for the Flow Shop Problem (FSP) or Machine scheduling problem that implements a Genetic Algorithm based solution for Traveling Salesman Problem (GATSP) . The suggested algorithm is stated as a scheduling problem in which a batch of jobs (n-jobs) is to be assigned to a group of machines (m-machine). It aims to maximize the total efficiency of the shop given only the job/machine processing time matrix for machine scheduling.

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Generalization Aspect of Neural Networks on Upgrading Assimilation Structure into Accommodating Scheme

Journal of Computer Science, 2009

Generalization feature enhancement of neural networks, especially feed forward structural model h... more Generalization feature enhancement of neural networks, especially feed forward structural model has limited progress. The major reason behind such limitation is attributed to the principal definition and the inability to interpret it into convenient structure. Traditional schemes, unfortunately have regarded generalization as an innate outcome of the simple association, referred to by Pavlov and had been modeled by piaget as the basis of assimilating conduct. Approach: A new generalization approach based on the addition of a supportive layer to the traditional neural network scheme (atomic scheme) was presented. This approach extended the signal propagation of the whole net in order to generate the output in two modes, one deals with the required output of trained patterns with predefined settings, while the other tolerates output generation dynamically with tuning capability for any newly applied input. Results: Experiments and analysis showed that the new approach is not only simpler and easier, but also is very effective as the proportions promoting the generalization ability of neural networks have reached over 90% for some cases. Conclusion: Expanding neuron as the generalization essential construction denoted the accommodating capabilities involving all the innate structures in conjugation with Intelligence abilities and with the needs of further advanced learning phases. Cogent results were attained in comparison with that of the traditional schemes.

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