TEXTUAL ASPECTS IN TRANSLATING LEGAL TEXTS FROM ARABIC INTO ENGLISH With Reference to Libyan Commercial Law

This research aims to examine the challenges in translating legal texts with reference to Libyan commercial law. It analyses Libyan legal texts translated into English in terms of lexical, syntactic and textual features in order to identify the similarities and differences between Arabic and English legal texts and to tackle the major translation difficulties that face Libyan translators in the field of legal translation. The research adopts two methods in analysing the data; first, through a contrastive analysis of both Arabic and English legal texts; second, through an empirical study conducted by answering two surveys. The first survey was answered by legal translators and the second by lawyers specializing in legal drafting in Libya

CONTROL OF KEY POLYMER PROPERTIES VIA REVERSIBLE ADDITION-FRAGMENTATION CHAIN TRANSFER IN EMULSION POLYMERIZATION

Free radical emulsion polymerization (FRP) is widely adopted in industry due to its applicability to a wide range of monomers. Despite its many benefits and wide spread use, the fast chain growth and the presence of rapid irreversible termination impose limitations with respect to the degree of control in FRP. Furthermore, producing block copolymers and polymers with complex structures via FRP is not feasible. Closer control of macromolecular chain structure and molar mass, using novel polymerization techniques, is required to synthesize and optimize many new polymer products. Reversible addition fragmentation chain transfer (RAFT)-mediated polymerization is a novel controlled living free radical technique used to impart living characters in free radical polymerization. In combination with emulsion polymerization, the process is industrially promising and attractive for the production of tailored polymeric products. It allows for the production of particles with specially-tailored properties, including size, composition, morphology, and molecular weights. The mechanism of RAFT process and the effect of participating groups were discussed with reviews on the previous work on rate retardation. A mathematical model accounting for the effect of concentrations of propagating, intermediate, dormant and dead chains was developed based on their reaction pathways. The model was combined with a chain-length dependent termination model in order to account for the decreased termination rate. The model was validated against experimental data for solution and bulk polymerizations of styrene. The role of the intermediate radical and the effect of RAFT agent on the chain length dependent termination rate were addressed theoretically. The developed kinetic model was used with validated kinetic parameters to assess the observed retardation in solution polymerization of styrene with high active RAFT agent (cumyl dithiobenzoate). The fragmentation rate coefficient was used as a model parameter, and a value equal to 6×104 s-1 was found to provide a good agreement with the experimental data. The model predictions indicated that the observed retardation could be attributed to the cross termination of the intermediate radical and, to some extent, to the RAFT effect on increasing the average termination rate coefficient. The model predictions showed that to preserve the living nature of RAFT polymerization, a low initiator concentration is recommended. In line with the experimental data, model simulations revealed that the intermediate radical prefers fragmentation in the direction of the reactant. The application of RAFT process has also been extended to emulsion polymerization of styrene. A comprehensive dynamic model for batch and semi-batch emulsion polymerizations with a reversible addition-fragmentation chain transfer process was developed. To account for the integration of the RAFT process, new modifications were added to the kinetics of zero-one emulsion polymerization. The developed model was designed to predict key polymer properties such as: average particle size, conversion, particle size distribution (PSD), and molecular weight distribution (MWD) and its averages. The model was checked for emulsion polymerization processes of styrene with O-ethylxanthyl ethyl propionate as a RAFT based transfer agent. By using the model to investigate the effect of RAFT agent on the polymerization attributes, it was found that the rate of polymerization and the average size of the latex particles decreased with increasing amount of RAFT agent. It was also found that the molecular weight distribution could be controlled, as it is strongly influenced by the presence of the RAFT based transfer agent. The effects of RAFT agent, surfactant (SDS), initiator (KPS) and temperature were further investigated under semi-batch conditions. Monomer conversion, MWD and PSD were found to be strongly affected by monomer feed rate. With semi-batch mode, Mn and increased with increasing monomer flow rate. Initiator concentration had a significant effect on PSD. The results suggest that living polymerization can be approached by operating under semi-batch conditions where a linear growth of polymer molecular weight with conversion was obtained. The lack of online instrumentation was the main reason for developing our calorimetry-based soft-sensor. The rate of polymerization, which is proportional to the heat of reaction, was estimated and integrated to obtain the overall monomer conversion. The calorimetric model developed was found to be capable of estimating polymer molecular weight via simultaneous estimation of monomer and RAFT agent concentrations. The model was validated with batch and semi-batch emulsion polymerization of styrene with and without RAFT agent. The results show good agreement between measured conversion profiles by calorimetry with those measured by the gravimetric technique. Additionally, the number average molecular weight results measured by SEC (GPC) with double detections compare well with those calculated by the calorimetric model. Application of the offline dynamic optimisation to the emulsion polymerization process of styrene was investigated for the PSD, MWD and monomer conversion. The optimal profiles obtained were then validated experimentally and a good agreement was obtained. The gained knowledge has been further applied to produce polymeric particles containing block copolymers. First, methyl acrylate, butyl acrylate and styrene were polymerized separately to produce the first block. Subsequently, the produced homopolymer attached with xanthate was chain-extended with another monomer to produce block copolymer under batch conditions. Due to the formation of new particles during the second stage batch polymerization, homopolymer was formed and the block copolymer produced was not of high purity. The process was further optimized by operating under semi-batch conditions. The choice of block sequence was found to be important in reducing the influence of terminated chains on the distributions of polymer obtained. It has been found that polymerizing styrene first followed by the high active acrylate monomers resulted in purer block copolymer with low polydispersity confirmed by GPC and H-NMR analysis

Calculation and Analysis of Total Quantity of Solar Radiation Incident on the Horizontal Surface of Babylon

This study includes mathematical methods to calculate the total amount of solar radiation falling on the horizontal surface of the city of Hilla, for the unit of area, which can be applied on the ground in order to use photo voltage cells for the electrical energy needed to feed the required loads, weather data have been relied on  temperature, relative humidity, dust and clouds for the period from 1/9/2012 to 05/01/2013 which taken from the Meteorological station of Education College for Pure Sciences - University of Babylon, as well as data from the Meteorological station of Sciences College - University of Babylon for the period from 1/5/2012 to 01/09/2012 located on longitude (44.401o) and width (32.4o), which have a direct impact on the angle of the fall of the solar radiation. The results showed that the amount of solar radiation calculated theoretically for the city of Hilla per m2 was the reality within the range 0-945 W / m2. The study also proved that weathering has a direct impact on the amount of solar radiation measured through decreasing it by the processes of absorption and scattering depending on the diameter of particles, dust and water vapor (the amount of relative humidity) in the air and the type and thickness and height of the clouds

EXTRACTION AND CHARACTERIZATION OF IRAQI ARTEMISIA DRACUNCULUS DRIED AERIAL PARTS EXTRACT THOUGH HPLC AND GC-MS ANALYSIS WITH EVALUATION OF ITS ANTITUMOR ACTIVITY AGAINST 7, 12-DIMETHYLBENZE (a) ANTHRACENE INDUCED SKIN CANCER IN MICE

Objective: This study focused on the extraction of bioactive constituents in Iraqi cultivated Artemisia dracunculus L dried aerial parts and phytochemical screening with qualitative estimation of three important flavonols (kampferol, quercetin and rutin). The study also included evaluating the antitumor effects (skin cancer) of methanolic extract for this plant.Methods: Extraction of bioactive constituents was carried out according to standard protocols using 85% methanol. The phytochemical screening has been done using chemical tests and GC/MS with qualitative estimation of three flavonols (kampferol, quercetin and rutin) utilized preparative high-performance liquid chromatography (PHPLC). Skin cancer in mice was induced by using 7, 12-dimethylbenze (a) anthracene to evaluate the antitumor effect of methanolic extract of Artemisia dracunculus when administered orally via intragastric feeding tube. Body weight, tumor volume, tumor burden, percent of tumor incidence and histopathological examination were measured in all tested animals.Results: Phytochemical screening revealed the presence of glycosides, volatile oils, alkaloids, tannin, terpenoids, phenolic compounds and flavonoids. The preparative high-performance liquid chromatography (PHPLC) analysis indicated that rutin had the highest concentration followed by quercetin while kampferol had the lowest concentration. The methanolic extract of the Artemisia dracunculus significantly reduced the percent of tumor incidence, tumor volume and tumor burden of skin cancer in mice (p<0.05).Conclusion: Dried aerial parts of Iraqi Artemisia dracunculus contain many bioactive constituents including three flavonoid compounds (quercetin, kampferol and rutin) that may be responsible for chemo preventive effect exerting by methanolic extract of Artemisia dracunculus against 7, 12-dimethylbenzeanthracine-induced skin cancer in mice

Equivariant cohomology and GKM-sheaves

If a topological group T acts on a topological space X, we may define the equivariant cohomology ring H*T(X). Due to its importance, several techniques have been developed to study equivariant cohomology. Goresky, Kottwitz, and MacPherson proved that of T torus action with a certain condition (GKM-manifold) the equivariant cohomology ring H*T(X) has a combinatorial description. More recently, T. Baird applied GKM-methods to general equivariantly formal compact T-manifold X. He developed a new class of sheaves (GKM-sheaves), and proved that the equivariant cohomology of X is isomorphic to the global sections of a GKM-sheaf FX. The purpose of this thesis is studying the GKM-theory and GKM-sheaves. In particular, we study the higher cohomology of GKM-sheaves and generalize the theory to compact T-manifolds for which H*T(X) is reflexive

Exfoliación por cizallamiento de nanohojuelas de grafeno como electrodo en supercondensadores

Introduction: The graphene has received a great attention becauseof its extraordinary characteristics of high carrier mobility, excellent thermal conductivity, high optical transmittance, and superiormechanical strength. Developing a simple methods with the property of producing large quantities of high-quality graphene havebecome essential for electronics, optoelectronics, composite materials, and energy-storage applications. Materials and Methods: Inthis study, the simple one step and efficient method of grindingwas used to produce few-layers graphene nanoflakes from graphite.Different microscopic (TEM, SEM, and AFM) and spectroscopics(XRD, XPS, and Raman) charactrization tools were used to testthe quality of the resultant graphene nanoflakes. Results: The produced nanoflakes showed no traces of oxidation due to the grindingprocess. In addition, the applicability of the obtained nanoflakes aspotential supercapacitor electrodes was investigated. For that purpose, thin films of the few-layer graphene nanoflakes were developed using spray coating technique. In terms of both transparencyand conductivity, the prepared films showed equivalent propertiescompared to those prepared by more complex methods. The electrochemical properties of the prepared electrodes showed highspecific capacitance of 86 F g_1 at 10 A g_1 with excellent stability.The electrodes sustained their original capacity for more than 7000cycles and started reducing to 72 F g-1 after 10000 cycles. Conclussions: The method provides a simple, efficient, versatile, andeco-friendly approach to low-cost mass production of high-qualitygraphene few-layers. The electrochemical stability and flexibility ofthe developed thin films indicated that the films could be used aselectrodes in a wide range of electronic applications

Some Non-destructive Testing for Al metal in 0.1N of NaCl and NaOH

In this work the corrosion behavior of Al metal was studied by using non- destructive testing (NDT), which is a noninvasive technique for determining the integrity of a material. The ultrasonic waves was used to measure the corrosion which occur by two corrosive medium (0.1N sodium chloride and 0.1N sodium hydroxide) and study the corrosion by weight-loss method and electrochemical method in addition to performance the microscopic inspection for the samples before and after the immersion in the corrosive medium. Corrosion parameters were interpreted in these media which involve corrosion potential (Ecorr) and corrosion current density (icorr). The results indicate that both media was corrosive but the 0.1N NaOH was more corrosive than 0.1N NaCI. Micro hardness test indicates that, the hardness value of the testing metal is decrease in 0.1N NaOH solution more than 0.1N NaCl solution with longest time of immersion

Steganography For Embedding Data In Digital Image

The growth of the World Wide Web (WWW) has enabled the personal computer to be used as a general communications tool. As in the case of other forms of communication there is a wish for security and privacy. With literally millions of images moving on the Internet each year, it is safe to say that digital image Steganography is of real concern to many in the IT security field. Digital images could be used for a number of different types of security fear. In the business world, the sending of a harmless looking bitmap file could actually hide the latest company secrets. Steganography (literally, covered writing) is concealing of a secret message within another seemingly innocuous message, or carrier. Digital carriers include email, audio, and images. Steganography, like cryptography, is a means of providing secrecy. Steganography does so by hiding the very existence of the communication, while cryptography does so by scrambling a message so it cannot be understood. A cryptography message can be intercepted by an eavesdropper, but the eavesdropper may not even know the existence of a steganographic message. This thesis discusses the issues regarding Steganography and its application to multimedia security and communication, addressing both theoretical and practical aspects, and tackling both design and attack problems. In the fundamental part, we identify a few key elements of Steganography through a layered structure. Data hiding is concerned to be as a communication problem where the embedded data is the signal to be transmitted. The tradeoff for two major categories of embedding data using spatial domain and frequency domain will be discussed. In addition, we have found that unevenly distributed embedding capacity brings difficulty in data hiding. We propose a complete solution to this problem, addressing considerations for choosing constant or variable embedding rate and enhancing the performance for each case. In the design part, we present new data hiding algorithms for binary images, grayscale and color images, covering such applications as annotation, fingerprinting, and ownership protection