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تصفح المحتوي RDA
التصفح حسب الموضوعات
التصفح حسب اللغة
التصفح حسب الناشر
التصفح حسب تاريخ النشر
التصفح حسب مكان النشر
التصفح حسب المؤلفين
تصفح الهيئات
التصفح المؤتمرات
التصفح حسب نوع المادة
التصفح حسب العلاقة بالعمل
تم العثور علي : 1846
 تم العثور علي : 1846
  
 
إعادة البحث

Articles 2024.
Vol. 100, No. 1 (August 2024) /

Thesis 2024.
Administrative development works to establish administrative systems and methods correctly in order to contribute to achieving progress in various fields. Administrative development is based on well-established and developed internal capabilities represented by a driving and growing economic ability - an interactive and participatory social ability - a conscious and directed political ability - and an administrative ability that provides modern technological means. Which seeks to raise the efficiency of work - get rid of regulations and rules that disrupt the workflow - work to achieve consistency and integration between specializations - so that the desired goals are achieved - and try to develop existing systems and introduce everything new in order to expand and develop.
Administrative development represents all administrative development efforts through training
- consultation - field research - information and communications technology - e-government - and effective legislation to achieve balances among stakeholders in society.
Sustainable management in educational institutions is necessary to maintain a positive school culture
- high morale among members of the school community - the participation of all members of the school community in setting the school’s vision and mission - and an important factor in determining the academic growth of students and the professional growth of members of the school community - and makes members of the school community their responsibility Shared - and is considered an important element in achieving long- and short-term goals. Sustainable management is based on the good practices of the educational institution and its competitiveness - and managing it in a sustainable manner to be a priority goal in all advanced educational policies. Official language schools are also among the educational institutions in Egypt that are located on It is responsible for educating students - and was established to meet the needs of a large sector of the Egyptian people who want to educate their children.
The study problem and its questions
The current situation of public language schools in Egypt indicates many problems with regard to the low performance of leadership and administrative work
- the steps of school work - and the weakness of administrative development in terms of planning - organization - decision-making and oversight. Among the manifestations of this deficiency are the following

Thesis 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 restrict