مستودع الأصول الرقمية لابحاث ومشاريع الطلبة بالجامعة
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Item A Dissertation Proposal Submitted to the Department of English in Fulfillment of the Requirements of the BA in Applied Linguistics Studies(جامعة سبها, 2020-01-08) علي, رويدةThe present study aims at investigating and describing the indirect speech act of threatening and the issue of misunderstanding these acts in the Libyan context. It attempts to find whether interactants in the Libyan society fail in delivering and interpreting this kind of speech acts. It also attempts at collocating the kind of strategies are being used to express or perform their acts of threatening. In addition, what factors are involved that have an effect on their performance and interpretation. Over and above, this study aims to figure out what makes a speaker threatens his interactant indirectly rather than directly. The current study targeted 6 subjects chosen randomly from the society that represent different genders and different ages. For the purpose of this study, data is collected through analytic and descriptive method known as DCT (discourse completion test). The study revealed that people in the Libyan society fail in delivering and interpreting indirect speech acts of threatening. This study also revealed that the social distance, relationship, power, and disposition of the interactants involved in the interaction are the most factors that affect the performance and interpretation of indirect speech act of threatening. Furthermore, it revealed that interactant consider using at least one politeness strategy when performing indirect threats. The amount of the politeness strategies used when performing indirect threats is the most occurring and important reason that leads to misunderstanding these acts.Item A Final Project Submitted in Partial Fulfillment of the Requirement for the degree of Bachelor in English Language with a focus on Translation studies(جامعة سبها, 2021-04-07) شانا, اصال; علي, رحمة; المحروقي, سعدةAbstract By Asal, Rahma Seada. Sebha University March 2018 The dictionary has traditionally been a widely used tool by Foreign Language students, both in their self-process of vocabulary acquisition and trying to understand a text. Bilingual electronic dictionary is one type of dictionaries that can not only be helpful for translation but also can be a tremendous tool to link a meaning to a form. This research aims to show how the use of bilingual ED can be effective and beneficial in developing vocabulary of secondary school students. To achieve the aim of this study, a questionnaire was given to 50 EFL secondary school students from 1st, 2nd and 3th years in some Sebha schools. The results of the study show that the use of bilingual ED is one of the good strategies that learners can use to able to disambiguate more words and recognizing (synonyms, antonyms, meaning of words, pronouncing words, spelling, etc.). This study will be concluded by offering suggestions about the use of such dictionaries to improve vocabulary for EFL secondary school students.Item Item A final project submitted in partial fulfillment the requirements for the degree of bachelor in English language with focus on translation studies(جامعة سبها, 2020-01-22) رزق الله , ليلى , أمينة , إلهام بابا , أحمدItem and their Bio-application. Ligand stabilized Iron Oxide Nanoparticles(2020-09-14) الصغير, صفاء; شبل, صالحةA study was conducted to prepare iron nanoparticles using chemical compounds reducing agent from sodium borohydride (NaBH4) and we note that the peak of the curve appears for samples at 200 to 350 at UV measurements. The preparation of iron nanoparticles using a plant extract of the plant (Teucrium appolines) by adding a reducing agent from (sodium borohydride NaBH4) was also studied, we note that the curve appears at 350 when measured in UV. We observe the stability of nanoparticles from 2 to 3 months from the results of ultraviolet analysis, and pH measurements have proven the stability of iron nanoparticles in alkaline and acidic medium, according to a biological study of iron nanoparticles that has proven effective against bacteria.Item Appling nitric acid and hydrochloric acid to be use in well stimulation processes(جامعة سبها, 2020) عمر, نجمة; عبدالسلام, آيةAcidizing involves pumping acid into a wellbore or geologic formation that is capable of producing oil and/or gas. The purpose of any acidizing is to improve a well’s productivity or injectivity. There are three general categories of acid treatments: acid washing; matrix acidizing; fracture acidizing.Item The Best Orientation for Parabolic Trough Concentrator(جامعة سبها, 2022) صالح, حليمةSolar energy is continuous on Earth and is a source from sources of renewable energies. The brightness of the sun's rays is in the form of radiation. This solar radiation and the conversion of solar energy can be used in a different form using different methods and techniques. The study was applied to Program MATLAB of the city of Sebha to simulate the tracking of the sun's rays by moving in detailed ways to reduce the angle of incidence of the incidence of beam radiation. on its surfaces, a comparison was made between the fifth systems.Item Biodiesel Production Using Calcined Eggshells Loaded on Barium Oxide as a Catalyst(جامعة سبها, 2024) محمد أحمد محمدItem biographie Alexandre Dumas(جامعة سبها, 2020-01-12) منصور, حدودItem Challenges Facing Libyan Translators in Translating Libyan Proverbs from Arabic to English(جامعة سبها, 2020-03-02) محمد, ضاوية; امحمد, هناءThis study aims to explore the challenges that Libyan translator, majored in translation at the department of English, encounter when translating Libyan proverbs from Arabic into English. It also focuses on the strategies applied by the translator to facilitate the translation in that respect. To achieve the goals of this study, the researchers used two instruments for data collection. These are a test and interviews. The sample of this study consisted of 6 translators specialists in translation. The results showed that some translator, majored in translation face problems in transferring the meaning of Libyan proverbs into the target language (English) because it is unlikely to find the exact equivalent in English due to cultural aspects. As regards the strategies the translator use in order to translate the Libyan proverbs, it was found that literal translation was their method. They try to get equivalent in standard Arabic then translate it into English language.Item CHALLENGES OF SUBTITLING CULTURAL ELEMENTS OF ENGLISH FILMS FROM ENGLISH TO ARABIC(جامعة سبها, 2019-11-26) JHIM, EMANSubtitling is considered as one of the main translation methods in our modern day, but most of the translation students at University of Sebha aren't familiar with most of the cultural elements that occur in many American or British movies or in general, they don't have enough background of the entire cultural elements of the target language .Therefore, in this project I tend to investigate those challenges that face translators when it comes to subtitling the cultural elements.Item Characterization of activated carbon and its performance to treat produced water for water injection(جامعة سبها, 2020) عبدالله, محمود; أبوبكر, طهWater injection (water flooding) method used in oil recovery is where the water is injected out into the reservoir usually to increase the pressure. Before the water is injected into the reservoir there are many processes passes through it, one of the main process is the treatment. Water injection could be treated by many methods and different ways. In this search, activated carbon was used as a treatment substance for injection water. Its source was the date seeds, where this seed was converted to non-activated carbon physically and activated chemically. Three different volumes of activated carbon were used in the water treatment Operation, to obtain treated water samples of different sizes. A spontaneous imbibition test for sandstone core samples after saturated of crude oil. A spontaneous imbibition test consisting of three scenarios of treatment water by Activated Carbon with change temperature and compared with one scenario of Reservoir water (untreated). The spontaneous imbibition test was performed in this study at room temperature to oven temperature (45°C, 55°C, 70°C). The results showed that the best oil recovery was by using water treated with activated carbon volume (0.125mm) is (70.41%) at the maximum temperature used.Item Chemical Synthesis of Aluminum oxide Nanoparticles, Determination of Antimicrobial Activity(جامعة سبها, 2023) Almahdi Ali Almahdi; Abdelsalam Mesbah MasoudIn this study,Aluminum oxide nanoparticles were prepared by sol gel method , aluminum oxide nanoparticles were evaluated using x-ray fluorescence (XRF) , Fourier transforms infrared spectroscopy (FT-IR) and X-ray diffraction (XRD), This study also determines the antibacterial and fungus activity of Al2O3 nanoparticles against pathogens such as Staphylococcus aureus, Escherichia Coli and Trichophyton rubrum, The average crystallite size of Al2O3 nanoparticles was determined to be 30 nm in XRD, Staphylococcus aureus , Escherichia Coli and Trichophyton rubrum displayed a peak zone of inhibition (15 , 13 mm) and (70%) in the antimicrobial experiment at a dose of 100 mg/ml of Al2O3 nanoparticles, aluminium oxide is a powerful antibacterial and fungus agent that may be used to treat a wide range of human illnesses.Item Chemical Synthesis of Aluminum oxide Nanoparticles, Determination of Antimicrobial Activity(جامعة سبها, 2023) علي, المهدي; موسي, عبدالسلامIn this study,Aluminum oxide nanoparticles were prepared by sol gel method , aluminum oxide nanoparticles were evaluated using x-ray fluorescence (XRF) , Fourier transforms infrared spectroscopy (FT-IR) and X-ray diffraction (XRD), This study also determines the antibacterial and fungus activity of Al2O3 nanoparticles against pathogens such as Staphylococcus aureus, Escherichia Coli and Trichophyton rubrum, The average crystallite size of Al2O3 nanoparticles was determined to be 30 nm in XRD, Staphylococcus aureus , Escherichia Coli and Trichophyton rubrum displayed a peak zone of inhibition (15 , 13 mm) and (70%) in the antimicrobial experiment at a dose of 100 mg/ml of Al2O3 nanoparticles, aluminium oxide is a powerful antibacterial and fungus agent that may be used to treat a wide range of human illnesses.Item Choisir l’interaction et le débat comme moyen d’apprentissage en classe de fle(جامعة سبها, 2019-08-01) Hammadi, Mariam fadwa , shibaniNous allons aborder dans ce deuxième chapitre tout ce qui concerne le débat comme stratégie d'apprentissage de l’oral en classe du FLE. Nous avons commencé par: la définition du concept du débat, les types de celui-ci. Nous avons défini la classe, sa compression du temps, de son espace, et son disciplinaire. L'intérêt pédagogique du débat, sa place dans le programme du lycée, le débat est un facteur de socialisation, de développement des comportements langagiers. il se rapporte au savoir, à l'éducation de la citoyenneté, à I’nteraction orale au cœur des instructions sociales. Le dernier élément sera la mise en place du débat au sein du cours, ou nous allons voir, les différents rôles, rôle de L’enseignant et rôle de L’apprenant et enfin, L’organisation spatio-temporelle.Item CLASSROOM MANAGEMENT PROBLEMS THAT FACED EFL TEACHERS IN SECONDRAY SCHOOL AT SEBHA, LIBYA(جامعة سبها, 2021-06-15) فاطمة, محمد; اميرة, امعيقلItem CODE-SWITCHING IN A DIASPORIC COMMUNITY: AN ETHNOGRAPHIC CASE STUDY OF A PRESCHOOL LIBYAN MULTILINGUAL GIRL(جامعة سبها, 2019-11-20) ahmad, alzhraCode-switching is a natural process of multilingualism that is typically related to linguistics, sociolinguistics, and psycholinguistics. Such factors are responsible for a pre-school child’s switching among the acquired languages. The current study examines a case of a four-year-old Libyan child who has been living in North-Cyprus for three years before the study. It specifically aimed to investigate the process of code-switching of the focal child in terms of patterns of switching (linguistic items and linguistic codes), and functions of switching. A linguistic ethnographic design was adopted. The primary mode of data collection was audio-recordings of everyday naturally occurring interactions, supported by participant observations, semi-structured interviews and playback sessions. A total of 300 hours of audio-recordings were made over a period of two months. Micro-discourse analysis (MDA) was implemented to analyze the data. The results of the examination of the codes among which Sara, the focal child, switched showed that a total of 260 switches were recorded among Arabic, English and Turkish. In terms of the structure of the language used by Sara through the research period, she was observed to predominantly switch basic parts of speech (nouns, verbs, and adjectives) among the three languages. Accordingly, data analysis showed that there were four main reasons behind Sara’s code-switching. These were; to maintain social interaction, to assert her position, language development, and pragmatic and psycholinguistic factors. It is suggested that further research should address the influence of the sociolinguistic and pragmatic factors in a multilingual child’s speech acts as well as the relationship of the non-verbal interaction with the implementation of language codes, i.e. code-switching among the three focal languages and the Libyan regional dialects.Item Comparative Study on Different Sand/Binder Mixtures for Suitability in Metal Casting Operations(Sebha University, 2017) Morouj Omar Rajab, Houssien Mannaa Masoud, Ahmed Mohammed Asaleh SalemSand casting refers to an object produced using the sand casting process. Sand castings are produced in specialized factories called foundries. It is known that over 70% of all metal castings are produced via sand casting process. Molds that are made of sand are relatively cheap, and sufficiently refractory for high temperature use. In addition to the sand, a suitable binder is mixed with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop the strength and plasticity of the clay and to make the aggregate suitable for molding . This research offers a comparative study on the usability and suitability of different local sands and binders for metal casting operations. The aim was to examine three different properties that are necessary for sand casting. Four different types of sands and three binders were combined successfully in different design mixtures. The sands under study were Red sand (Ashkeda), white well sand, red well sand and silica sand (Zallaf). The binders used in the new mixtures were sugar solution, dates extract and local clay . To achieve the research aim, certain properties concerning sand casting were investigated which are; the mixture strength, thermal collapse temperature and sand texture analysis so that all results can be linked together to support the findings . The overall conclusion is that each type of our local sand require certain binder to give the best combination of properties required for metal casting operations. The best recommendation for sand/binder mixture for casting is (silica + clay) since this type tolerates a temperature of about 1100 ºc and compression strength of 700 N. The reason for this is that silica contain quartz element that has high melting point of about 1670 cº. The new second best mixtures was the sample with mixture of (the white well sand + dates extract). This type of sand/binder mixture can endure a temperature as high as 870 cº, and has a strength of 800 N. The third best choice for metal casting operation will be (Ashkida + dates extract). This type can withstand about 870 ºc and has failure strength of 750 N.Item Corrosion inhibition of mild steel by using Carbimazole/Zn+2 system in NaCl medium(Sebha University, 2018) Alfitury salh alfitury, Ali Jumaa Ali Almabrouk,Seraj Mohammed Omar BurkanCorrosion is defined as the degradation of metallic materials under the effect of the environment. This is a surface reaction that propagates in progressive ways affecting the integrity of the material. Under the aggressive environment, corrosion leads to the formation of corrosion products, and to a progressive generalized or localized loss of matter. The use of inhibitor material is considered as a one way to protect the metal surface against corrosion. The inhibitor is chemically adsorbed on the surface of the metal and forms a protective thin film with inhibitor effect or by combination between inhibitor ions and metallic surface. Or, the inhibitor leads a formation of a film by oxide protection of the base metal. The current work was evaluated the corrosion inhabitation of carbon steel in NaCl solution by carbimazole\Zn system. the ability of carbimazole as a good corrosion inhibitor is enhanced slightly in presence of Zn+2 when the concentration of carbimazole increased and this may be attributed to the protective film formed on the metal surface was withstand the continuous attack of corrosive ions. Also, the formation of complex Fe-carbimazole/Zn+2 linkages on the anodic sites of the metal surface during the immersion time may play a role in the improvement in adsorption of inhibiter system via coverage more area of the metal surface which reduced the exposure of anode sites to the corrosive media. By using Langmuir isotherm model to identify the inhibitor mechanism performance, the values of linear correlation coefficient were found close to unity (1) suggested that the adsorption of the studied inhibitors follows Langmuir isotherm model. Generally, values of ∆𝐺°ads up to -9.7 KJ/mol are attributed to the electrostatic interaction between the inhibitor molecules and the metal surface (physical adsorption), whilst those at -10.6 KJ/mol or a little more negative are consistent with chemical bonding of the inhibitor to the sample (Chemisorptions).