أثر العوامل الفردية، الفصلية، الثقافية والتقنية في تشارك المعرفة بين طالب األكاديمية الليبية – طرابلس
مقال في مجلة علميةهدفت الدراسة إلى التعرف على العوامل المؤثرة في تشارك المعرفة بين طالب األكاديمية الليبية بطرابلس والمتمثلة في ) العوامل الفردية، العوامل الفصلية، العوامل الثقافية، العوامل التقنية (. تم استخدام المنهج الوصفي كما تم اختيار عينة عشوائية بنسبة )%10 ( من مجتمع الدراسة والبالغ عدده )1945( طالب مسجلين خالل الفصل الدراسي خريف) 2018 (، ولتحقيق أهداف الدراسة وزعت )230( استمارة استبيان على عينة البحث استبعد منها )19( استمارة غير صالحة للتحليل، و استعيد منها )211( استمارة صالحة للتحليل، أي بمعدل استجابة )%91.7(، وقد تمت اإلجابة على االستمارات وذلك بمقابلة الطالب في داخل األكاديمية وفي أوقات مختلفة وأماكن مختلفة من األكاديمية، كما تم االعتماد علي األوساط الحسابية واالنحرافات المعيارية باإلضافة إلى أسلوب االنحدار البسيط الختبار معنوية األثر. من خالل نتائج التحليل اإلحصائي للبيانات األولية المجمعة بواسطة ) صحيفة االستبيان( باستخدام الحزمة اإلحصائية للعلوم االجتماعية( SPSS ( توصلت الدراسة إلى جملة من النتائج من أهمها:أن مستوى توفر العوامل المؤثرة في تشارك المعرفة في األكاديمية قيد الدراسة كان )متوسط(، كما تبين وجود أثر للعوامل )الفردية، الفصلية، الثقافية والتقنية ( في تشارك المعرفة، كما تم اقتراح العديد من التوصيات التي من أهمها: نشر ثقافة تشارك المعرفة بين طالب األكاديمية الليبية وذلك من خالل التركيز على العوامل المؤثرة في تشارك المعرفة من خالل متطلباتها المتمثلة في )العوامل الفردية، العوامل الفصلية، العوامل الثقافية، العوامل التقنية( باعتبارها تؤثر بشكل كبير على تشارك المعرفة بين الطلبة، كما تقترح الدراسة إجراء بعض الدراسات المستقبلية على جامعات أخرى مماثلة.
جمال محمد عربي حميدة التواتي، عبدالرزاق نصر علي العجيلي، (06-2019)، صبراتة: Sabratha University، 5 (5)، 46-74
The Comparative Advantage of Crude Oil in the Top 10 Oil-Producing Countries
Conference paperAbstract
This paper investigates the comparative advantage of crude oil in the top 10 oil-producing countries over the period 1990-2016 through computing the Normalized Revealed Comparative Advantage (NRCA) index and further examines the determinants of this advantage using panel estimation technique. The results of the NRCA index showed that not all the top10 oil-producing countries have a comparative advantage in crude oil production during the study period. Countries like Iran, Iraq, Kuwait, Russia, Saudi, and UAE are found to have a comparative advantage in producing crude oil, while countries like Brazil, China, and the USA have no comparative advantage in producing crude oil. For Canada, its comparative advantage is only revealed just between 2006 and 2016. The result of the Panel ARDL suggested that in the long run, crude oil price (COP) and daily average of crude oil production (DAP) are found to be positive and significantly related to NRCA, whereas proven reserve (PR) and domestic demand for oil (DDO) are negative and significantly related to NRCA. In the short run, COP, DAP, and DDO have the same effect as in the long run and significantly related to NRCA, while PR is statistically insignificant. Finally, a bidirectional Granger-causality is detected between the variables except for the PR and NRCA where a unidirectional causality runs from PR to NRCA.
Mustafa Besim Abdelhakim Embaya Osama Elsalih, Kamil Sertoğlu, (06-2019), INTERNATIONAL CONFERENCE ON EURASIAN ECONOMIES 2019: INTERNATIONAL CONFERENCE ON EURASIAN ECONOMIES 2019, 118-125
Wild mammals in northwestern Libya and the role of rain and temperature in its geographical distribution
مقال في مجلة علميةThis study was conducted on mammals in the western part of the Jafara Plain and on its relationship to environmental factors, such as temperature and rainfall. This study included two parts; the first part is a field study to identify the species of wild mammals in the western part of the Jafara plain and to determine its geographical distribution. The second part of this study included analyzing data of average annual rainfall and average annual temperatures, using the regression equation and the quintile equation for eight urban areas within the region during thirty years, from 1977 to 2006 due to the availability of temperature and precipitation data in this period. The results showed that there are nineteen species of wild mammals in this region belonging to ten families of six orders. The most recorded species belong to the order of rodents (47%) followed by the order of carnivores (26%), then insectivores (10%). Results of environmental changes showed that, the trend in all studied areas was negative and that the amounts of rain were fluctuating, unstable and decreased at a rate between 40 - 125 mm during the thirty years. As for the temperature, it rose during this period between 1.5oC to 2oC. Therefore, it became clear that the change in environmental factors caused an increase in the rate of drought, and this is what threatens the natural vegetation and thus threatens all other organisms, especially wild mammals, which their numbers were few in the driest places on the plain of Jafara. Key words: Mammals, Biodiversity, Temperature, Rain, Libya.
Hamed Basher Bsissa، Mohamed aiysal Ashur، Tarek Basher Jdeidi، (06-2019)، Tripoli University, Libyas: The Libyan Journal of Science (An International Journal):، 22 (1)، 27-44
A Simplified Model for Characterizing the Effects of Scattering Objects and Human Body Blocking Indoor Links at 28 GHzIEEE Access
Journal ArticleThis paper presents a simple approach to characterize the effects of scattering objects around indoor links at 28 GHz while the link is fully blocked by a human body. The effects of scattering objects nearby the link were studied by conducting measurements with a metallic re ector and the human body.
Ahmed Ben Alabish, (05-2019), IEEEAccess: IEEE, 1109 (29), 1-10
Impact of Some Pollution Sites on the Chemical and Bacterial Properties of the Groundwater in the Tajoura Region of Libya
مقال في مجلة علميةAbstract: This study Was Carried at the area of Tajura. It covers three places, AL Hamedia, Sidi Khalifa and Industrial Compounded (AL-mojamma Assinay). The Study aimed to investigate the influence of some contaminations which may be produced from wastewater treatment plants in the study area, and from the landfill of the industrial compound. The quality of the ground water of the sites were determined according to the Libyan standard of drinking water No 82 for the year of 2013 and according to the world health organization standard, 1989. To achieve the goals of the study, many chemical and biological analyses were performed on 23 samples of groundwater. The analysis included electric conductivity EC, Total dissolved solids, TDS, pH, some cations and anions Mg2+, Ca2+ , K + , Na+ , Cl- , NO3 - , SO4 - and some heavily and micro elements like Hg, pb, Cu. Total coliform and fecal coliform bacteria were screened. The sodium adsorption ratio (SAR) adjusted sodium carbonate were collected as well. The results revealed that according to the Libyan and WHO standard the majority of the groundwater samples were influenced by wastewater, seawater intrusion. The results also showed that most of the wells located in Al Hamedia area were contaminated with coliform bacteria. However, the ground water sample of well No 3 and 7 were under the allowable limits according to the Libyan standard for drinking water 2013.
خيري محمد ميلاد العماري، (04-2019)، Alexandria Science Exchange Journal: مجلة الإسکندرية للتبادل العلمي، 2 (40)، 130-140
Post Weld Heat Treatment Qualification of Type 304L Stainless Steel Weld Metal
Conference paper. The aim of the present paper is focused on post weld heat treatment qualification by
describes the results of an investigation to understand the micro structural changes that taken place in type 304L stainless steel weld deposits as function of temperature / time by showing any presence of re-crystallization and / or strain induced grain boundary migration and the dissolution of any carbide formed at grain boundaries in welding monitored by metallographic examination.
Abdulnaser Hamza Ahmed Fadel, (03-2019), Libya: International Conference on Technical Sciences, 1131-1134
A coupling Method of Regularization and Direct Computation Method for solving Two-dimensional Fredholm Integral Equations
Journal ArticleAbstract: In this paper, we will use the combination of Regularization method and Direct computation method, or shortly, Regularization-Direct method for solve two dimension- al linear Fredholm integral equations of first kind, by converting the first kind of equation to the second kind by applying the obtain a solution. A few examples are provided to prove the validity and applicability of this approach. regularization method. Then the Direct compotation method is applying to getting the resulting second kind of equation to
Ali Abaoub, Asma Embirish, Abejela Shkheam, (03-2019), ليبيا: Journal of Faculties of Education, 13 (3), 98-107
إدارة الموارد المائية : إستراتيجية لتحقيق الأمن المائي في ليبيا
مقال في مجلة علميةتعد الموارد المائية من أهم موارد الدولة الطبيعية، وعنصراً أساسياً من مقومات قوة الدولة الاقتصادية، كونها عاملاً مهماً في تحقيق برامج التنمية المختلفة، لذلك تحظى بأهمية كبيرة عند الدول وتوليها الكثير من الاهتمام.ونظراً لموقع البلاد الجغرافي ضمن حزام المناطق الجافة وشبه الجافة ، فإن معدلات هطول الأمطار هي في معظمها قليلة وغير منتظمة ، ونسبة الاستفادة منها تبقى محدودة فضلاً عن تعرضها للضياع نحو البحر أو الصحراء وبذلك كان الاعتماد على المياه الجوفية لتغطية الطلب على حاجة المياه لمختلف الاستخدامات ، وهو ما يؤدي إلى زيادة تفاقم الوضع المائي ، ويزيد من خطورة وهشاشة الأمن المائي الليبي ، مما يتطلب التقييم المستمر لهذه الموارد من حيث مصادرها وتوزيعها الجغرافي ، وكذلك تقييم الطلب عليها ، من أجل وضع سياسة مائية تضمن تحقيق الموازنة المائية بين العرض والطلب ، وتهدف هده الدراسة إلى التعرف على مصادر الموارد المائية المتاحة في ليبيا، وأسباب مشكلة العجز المائي، وكيفية إدارتها، وإيجاد رؤية استراتيجية تفضي لمعالجتها بما يسهم في تحقيق الأمن المائي.
عبدالقادر علي موسى الغول، (03-2019)، ليبيا: مجلة المنتدى الجامعي، 23 (2)، 99-130
The Environmental Impacts Caused by Transported Water Project to The Tripoli City In libya.
مقال في مجلة علميةAbstract: This study deals with research on the environmental effects of water transferred to Tripoli City, Libya, on economic activity, especially agricultural production, as well as, the side project of urban, industrial and service side of the area compared to areas that do not suffer from water scarcity in Libya This done by relying on reports and official statistics issued by the competent authorities in Libya and analysis of that information statistically as in this study the use of available information on the study area through the distribution of a questionnaire relating to the urban side forms and 125 questionnaires were contained many questions that serve this study. The number of 50 was distributed questionnaires to the owners of the farms in the study area that serve this study in terms of the environmental aspect. As well as, the distribution 25 were distributed to 25 industrial and service sites concerning the study of the industrial and service sides. The analysis of these questionnaires using some descriptive statistics methods and of the standard deviation frequencies and percentages to display the data that reflect the personal variables of the items of the sample, as well as some of the methods and statistical tests and other deductive, were also statistically significant study data processing through the Statistical Package for Social Sciences (SPSS- Statistical Package for Social Sciences), where it shows that the lack of water in the study area has led to a decrease in productivity of agricultural land, and weak returns economic them, also forced people in this region to compensate for the acute water shortage in the daily water their needs secured by through the purchase of water large amounts of money to weigh their shoulders and brought in from other far places by portable tanks on trucks, which cost the citizen additional expenses directly from the annual limited income, and also cause them in other, indirect costs as a result of the need for storage that amount of water transferred, In addition, the failure to ensure borne water quality and may result in health problems for the population, which confirms that the severe shortage and water scarcity afflicting the study area throught environmental, social and economic concerns.
خيري محمد ميلاد العماري، (03-2019)، Alexandria Science Exchange Journal: Alexandria Science Exchange Journal، 40 (2)، 104-122
Biomarker Ratios and Stablecarbon Isotopes to Describe Crude Oils Characteristics in the Murzuq Basin (Libya)
Journal ArticleThis present paper includes a detailed evaluation of specific biomarkers together with stable carbon isotope (δ13C) by gas chromatography-mass spectrometry (GC–MS) and Gas Chromatograph– Isotope Ratio Mass Spectrometry (GC–IR–MS). Eight crude oil samples were collected from the A, B, H (east) and H (west) Fields, located in the Murzuq Basin, Libya. Stable Carbon isotope data (δ13C) together with biomarker ratios data of individual hydrocarbons, n-alkanes, isoprenoids, terpenes, hopanes, steranes and aromatic have been determined in crude oils to delineate their bacterial degradation, source facies, organic matter precursors, depositional conditions and a variation of maturation. Based on source-specific parameters including n-C19 alkane, % C27S, %C28S, %C29S, %C23TT, %C30αβ, %rC28, DBT/P, CPI, Pr/Ph, Ts/Tm, dh 30/h 30, 1 MN, 2 MN, 26-27 DMN, 15 DMN, 236 TMN, 146-135 TMN, 125 TMN, 136 TMN ratios and δ13C‰ of saturates and aromatics fractions. Such oils showed non-biodegradation, n-C19 peak proved oils generated from a Lower Palaeozoic source rocks as emphasizedvian-C19 peak, the dominance of C29steranes
over C27 and C28 with light Carbon isotope ratio (δ13C‰) values. The abundances of isosterane C29, C27, C28.Tricyclohexaprenol and bacteriohopane polyols and aminopolyols, recommended as mixture bioprecursors of tricyclic terpenes and hopanes, furthermore regular sterane ratio gives values characteristic of Lower Palaeozoic marine source rocks and holding green algae and most likely a quantity of contribution from acritarchs. Carbon preference indices (CPIs)>0.9 pointed to an anoxic deposition, dibenzothiophene to phenanthrene (DBT/Prange 0.49 - 0.58) recommend a siliciclastic source rather than carbonate and/or evaporate saline deposition. The ratios of CPIs, pristane/n-C17 and phytane/n-C18, n-alkanes (C16 to C22) against (C23 to C33), Ts/Tm, C30diahopane/C30hopane, methylnaphthalene, dimethyl naphthalene and trimethyl naphthalene indicated that the oils analysed are mature except the B Field oil being slightly less mature than the A, H (east) and H (west) Fields oils
S. Aboglila1*, A. Abdulgader1 , A. Albaghdady1 , O. Hlal1 and E. Farifr1, (03-2019), Advances in Research: Advances in Research, 18 (3), 1-12