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التصفح حسب نوع المادة
التصفح حسب العلاقة بالعمل
تم العثور علي : 751
 تم العثور علي : 751
  
 
إعادة البحث

Thesis 2024.
عنوان البحث: ”أثر اختلاف كثافة عناصر التعلمالرقمية عبر بيئات التعلم الشخصية في تنمية مهارات
التصميم التعليمي والثقافة البصرية لدى طلبة تكنولوجيا التعليم”
اسم الباحثة: مها ممدوح محمد عبد الحميد.
جهة المنح: كلية التربية، جامعة قناة السويس.
سنة المنح: 1445ه/ 2024م.
لغة البحث: اللغة العربية.
الدرجة العلمية: دكتوراه الفلسفة في التربية.
التخصصالدقيق: مناهج وطرق التدريسوتكنولوجيا التعليم.
هيئة الإشراف: أ. د. زينب محمد أمين؛ أ. د/ إسلام جابرأحمد علام؛ د/ حسين عبد الفتاح.
المستخلص:
هدف البحث الحالي إلىتنمية مهارات التصميم التعليمي والثقافة البصرية لدى طلبة تكنولوجيا التعليممن خلال تعرف أثر اختلاف كثافة عناصر التعلم الرقمية عبر بيئات التعلم الشخصيةفي ذلك. وتحقيقًا لأهداف البحث تم استخدام المنهج التجريبي بتصميمه شبه التجريبي ذو الثلاثةمجموعاتتجريبية، وذلك لدراسة تأثير المُتغيرات: كثافة عناصر التعلم الرقمية عبر بيئات التعلم الشخصية كمتغير مستقل(نص/صورةوصوت/ مقاطع فيديو)؛ ومهارات التصميم التعليمي(تحليل المهمات التعليمية/ صياغة الأهداف التعليمية/ تنظيم المحتوى العلمي ومعالجته/ اختيار استراتيجية التعلم/اختيارأو إنتاج مصادر التعلم/ التقويم التعليمي)، والثقافة البصرية (كمتغيرين تابعين): وتكونت عينة البحث من (90) طالبًا/طالبة من كلية التربية النوعية، قسم تكنولوجيا التعليم. وللإجابة عن أسئلة البحث واختبارفروضه، تم بناء مادة المعالجة التجريبية وإعدادأدوات القياس (اختبار معرفي لمهارات التصميم التعليمي، وبطاقة تقييم المنتج، واختبار الثقافة البصرية).وأوضحت النتائج أن هناك أثر لكثافة عناصر التعلم الرقمية عبر بيئات التعلم الشخصية في تنمية الأداء المهاري لمهارات التصميم التعليمي والثقافة البصرية لدى طلبة تكنولوجيا التعليم، حيث جاء معالجات الفيديو في المرتبة الأولى يليها الصورة والصوت ثم النص،بينمالا يوجد اختلاف بين كثافة عناصر التعلم الرقميةعبر بيئات التعلم الشخصية في تنمية الجوانب المعرفية لمهارات التصميم التعليمي.كما أشارت النتائج إلى وجود علاقة ارتباطية موجبة بين الثقافة البصرية والأداء لمهارات التصميم التعليمي.وتم تحليل النتائج وتفسيرها في ضوء الإطار النظري والدراسات السابقة ذات الصلة.
الكلمات المفتاحية: كثافة عناصر التعلم الرقمية؛ بيئات التعلم الشخصية؛ مهارات التصميم التعليمي؛ مهارات الثقافة البصرية.

Abstract
Research Title: The Effect of the Density of Digital Learning Objects Difference via Personal Learning Environments for Developing some Instructional Design and Visual Literacy Skills for Educational Technology Students
Researcher’s name:Maha Mamduh Mohammad Abdelhamid
Language of the Study: Arabic
Academic Degree: Doctor of Philosophy Degree inCurriculum
- Instructionl & Educational Technology
Supervision Committee: Prof. Dr. Zeinab Mohamed Amin;Prof. Dr. Islam Gaber Allam; Dr.Hussein Abdelfattah.
Abstract:
The current research aims to develop educational design and visual culture skills among educational technology students by identifying the impact of the difference in the density of digital learning elements across personal learning environments. To achieve the research objectives
- the experimental method with its quasi-experimental design with three experimental groups was used to study the effect of the variables:Density of digital learning elements across personal learning environments as an independent variable (text/image and audio/video); And educational design skills (analyzing educational tasks/formulating educational objectives/organizing and processing scientific content/choosing a learning strategy/selecting or producing learning resources/educational evaluation) - and visual culture (as dependent variables): The research sample consisted of (90) male/female students from a college Specific Education - Department of Educational Technology. To answer the research questions and test its hypotheses - the experimental treatment material was constructed and measurement tools were prepared (a cognitive test for educational design skills - a product evaluation card - and a visual culture test).The results showed that there is an impact of the density of digital learning elements across personal learning environments in developing the skill performance of educational design and visual culture skills among educational technology students - as video processors came in first place - followed by image - sound - then text - while there is no difference between the density of digital learning elements across Personal learning environments in developing the cognitive aspects of educational design skills. The results also indicated that there is a positive correlation between visual culture and performance of educational design skills. The results were analyzed and interpreted in light of the theoretical framework and previous relevant studies.
Keywords: Density Digital Learning Objects; Personal Learning Environment (PLE); Instructional Design Skills; Visual Literacy Skills

Articles 2024.
Vol. 99, No. 1 (July 2024) /

Articles 2024.
Vol. 99, No. 1 (July 2024) /

Thesis 2024.
The application of anaerobic processes has tended to be restricted to
strong industrial wastewaters. The success of anaerobic processes as a
treatment technology for high strength
- industrial wastewater has meant
that the potential of these processes for the treatment of low strength
wastewater has been evaluated. However
- one of the main challenges to
anaerobic technology remains its applicability to low-strength wastewaters
like sewage. The up-flow anaerobic sludge blanket (UASB) reactor is the
most widely and successfully used high rate anaerobic system for
wastewater treatment. The aim of the thesis is to increase the efficiency of
the system by adding conductive materials. Ecofriendly bio-adsorbents
such as Rice Straw
- Phragmites australis - and Commercial Activated
Carbon were used for chemical oxygen demand (COD) removal and
Biogas production from wastewater. Experiments using a multilevel
complete factorial design were conducted to optimize the removal
effectiveness of COD (Chemical Oxygen Demand) while minimizing the
number of experiments required. To verify the structural characteristics
- elemental composition - and the existence of various functional groups - a
characterization investigation was conducted using X-ray diffractometry
(XRD)
- Fourier Transform InfraRed spectroscopy (FTIR) - Scanning
Electron Microscopy (SEM)
- and Brunner–Emmett–Teller (BET). Batch
experimental trails were operated to determine the optimum adsorpant
material
- its optimum dose - as well as the other operational parameters - such as solution pH - inoculation concentration - and their interactions
during COD removal and Biogas production were investigated. The
maximum removal of COD (99.63%) and the biogas production (5.16 mL
biogas/mg COD removed) of Rice Straw Biochar (RSB) were at pH value
- biochar dose - and buffalo sludge dose concentration were equal to 8 - 2 g/L -
IV
and 0%
- respectively. Commercial Activated Carbon (AC) has achieved
maximum removal of COD (95.55%)
- and the biogas production (6.08 mL
biogas/mg COD removed) at pH
- biochar dose - and buffalo sludge dose
concentration were equal to 5
- 2 g/L - and 0% - respectively. The maximum
removal of COD (98.88%) and the biogas production (4.08 mL biogas/mg
COD removed) of Phragmites australis Biochar (PaB) were at pH
- biochar dose - and buffalo sludge dose concentration were equal to 5 - 2 g/L - and 0% - respectively. These results revealed that rice straw biochar can be
used as an effective and low-cost adsorbent to remove COD from
wastewater. The surface properties of rice straw biochar substantially
affect its capability of removing metal ions from wastewater
- and fourier
transform infrared spectroscopy (FTIR) spectroscopy is a great tool to
observe this surface composition. Two identical pilot-scale models
simulating “Up-flow Anaerobic Sludge Blanket” reactors (UASBs) were
built and operated continuously within the work frame of the present work
to investigate its performance and efficiency in treating buffalo
wastewater treatment. The effect of supporting media on the UASB
efficiency will be also invistgated at the field. The two UASB reactors
were operated under the same operational conditions and scenario
- the
reators operated at HRT equals 4hr and ambiaint temperature. Both R4
(conventional UASB) and R3 (modified UASB) were fed by settleled
wastewater . The condutive media was not added to R3 at the beigning. After the start-up
- the modified UASB reactor (R3) was inoculated with
rice straw biochar through an inclined pipe. Samples were collected and
analyzed periodically twice weekly. The results indicated that; For the
conventional reactor
- the maximum removal efficiency of COD - TSS - TDS - Color - and Turbidity was 79.89% - 74.04% - 80.11% - 72.72% - and
75.70%
- respectively. Cumulative biogas production reached 0.028 mL - The application of anaerobic processes has tended to be restricted to
strong industrial wastewaters. The success of anaerobic processes as a
treatment technology for high strength
- industrial wastewater has meant
that the potential of these processes for the treatment of low strength
wastewater has been evaluated. However
- one of the main challenges to
anaerobic technology remains its applicability to low-strength wastewaters
like sewage. The up-flow anaerobic sludge blanket (UASB) reactor is the
most widely and successfully used high rate anaerobic system for
wastewater treatment. The aim of the thesis is to increase the efficiency of
the system by adding conductive materials. Ecofriendly bio-adsorbents
such as Rice Straw
- Phragmites australis - and Commercial Activated
Carbon were used for chemical oxygen demand (COD) removal and
Biogas production from wastewater. Experiments using a multilevel
complete factorial design were conducted to optimize the removal
effectiveness of COD (Chemical Oxygen Demand) while minimizing the
number of experiments required. To verify the structural characteristics
- elemental composition - and the existence of various functional groups - a
characterization investigation was conducted using X-ray diffractometry
(XRD)
- Fourier Transform InfraRed spectroscopy (FTIR) - Scanning
Electron Microscopy (SEM)
- and Brunner–Emmett–Teller (BET). Batch
experimental trails were operated to determine the optimum adsorpant
material
- its optimum dose - as well as the other operational parameters - such as solution pH - inoculation concentration - and their interactions
during COD removal and Biogas production were investigated. The
maximum removal of COD (99.63%) and the biogas production (5.16 mL
biogas/mg COD removed) of Rice Straw Biochar (RSB) were at pH value
- biochar dose - and buffalo sludge dose concentration were equal to 8 - 2 g/L -
IV
and 0%
- respectively. Commercial Activated Carbon (AC) has achieved
maximum removal of COD (95.55%)
- and the biogas production (6.08 mL
biogas/mg COD removed) at pH
- biochar dose - and buffalo sludge dose
concentration were equal to 5
- 2 g/L - and 0% - respectively. The maximum
removal of COD (98.88%) and the biogas production (4.08 mL biogas/mg
COD removed) of Phragmites australis Biochar (PaB) were at pH
- biochar dose - and buffalo sludge dose concentration were equal to 5 - 2 g/L - and 0% - respectively. These results revealed that rice straw biochar can be
used as an effective and low-cost adsorbent to remove COD from
wastewater. The surface properties of rice straw biochar substantially
affect its capability of removing metal ions from wastewater
- and fourier
transform infrared spectroscopy (FTIR) spectroscopy is a great tool to
observe this surface composition. Two identical pilot-scale models
simulating “Up-flow Anaerobic Sludge Blanket” reactors (UASBs) were
built and operated continuously within the work frame of the present work
to investigate its performance and efficiency in treating buffalo
wastewater treatment. The effect of supporting media on the UASB
efficiency will be also invistgated at the field. The two UASB reactors
were operated under the same operational conditions and scenario
- the
reators operated at HRT equals 4hr and ambiaint temperature. Both R4
(conventional UASB) and R3 (modified UASB) were fed by settleled
wastewater . The condutive media was not added to R3 at the beigning. After the start-up
- the modified UASB reactor (R3) was inoculated with
rice straw biochar through an inclined pipe. Samples were collected and
analyzed periodically twice weekly. The results indicated that; For the
conventional reactor
- the maximum removal efficiency of COD - TSS - TDS - Color - and Turbidity was 79.89% - 74.04% - 80.11% - 72.72% - and
75.70%
- respectively. Cumulative biogas production reached 0.028 mL

Articles 2024.
Vol. 96, No. 1 (June 2024) /

Articles 2024.
Vol. 94, No. 1 (May 2024) /

Thesis 2024.

Book 2023
ISBN: 9781260597707

Thesis 2024

Thesis 2024.


من 76
 







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