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M.R.Salem, L.A.Talaat, and H.M.Soliman, "Voltage control by tap-changing transformer for a radial distribution network", IEE Proc .Generation , Transmission and Distribution., vol. 144, issue 6, pp. 517-20, 1997.
Sedky, J. S., H. M. Yassin, H. H. Hanafy, and F. Ismail, "Voltage and frequency control of standalone wind-driven self-excited reluctance generator using switching capacitors", Journal of Electrical Systems and Information Technology, vol. 8, issue 1: SpringerOpen, pp. 1-24, 2021. Abstract
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Hanafy, H. H., A. M. Gesraha, M. M. Abd-Elaziz, and A. F. Zobaa, "Voltage and Frequency Control of Self-Excited Short-Shunt Induction Generator", Journal of Engineering and Computer Sciences, Qassim University, vol. 1, issue 2, pp. 95-108, 2008.
Shaltout, A. A., T. M. Abdo, M. M. Halouda, and A. H. Besheer, "Voltage and Frequency Control of Self Excited Slip Ring Induction Generator Driven by Wind Turbine", 13th Middle East Power Systems Conference (MEPCON’ 2009), Assuit, Egypt, 15 December, 2009.
Elkholy, S. H., H. S. Shehata, H. Raafat1, A. M. Nawito, and R. A. Almahdy1, "Volitional single fiber electromyography of the masseter muscle; normative values and in myasthenia gravis", International Journal of Medicine and Medical Sciences, vol. 2, issue 11, pp. 245-250, 2012. volitional_sfemg_of_the_masseter_muscle.pdf
Elkholy, S. H., H. S. Shehata, H. Raafat, A. M. Nawito, and R. A. Almahdy, "Volitional single fiber electromyography of the masseter muscle; normative values and in myasthenia gravis", International Journal of Medicine and Medical Sciences, vol. 2, issue 11, pp. 245-250, 2012. Abstract

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Khalaf, E. A., A. A. Motelib, M. S. Hammed, and E. A. H. Manawi, "Volcano-sedimentary characteristics in the Abu Treifiya Basin, Cairo–Suez District, Egypt: Example of dynamics and fluidization over sedimentary and volcaniclastic beds by emplacement of syn-volcanic basaltic rocks", Journal of Volcanology and Geothermal Research, vol. 292, pp. 1-28, 2015. Abstractezz_article_1.pdf

This study reports on lava–sediment interaction focusing on the Neogene volcano-sedimentary sequence in the
Abu Treifiya Basin, Cairo–Suez district, as a detailed example. The dynamic lava–sediment interactions as
peperites happen on a variety of scales from simple sediment interbeds with the extrusive and intrusive basaltic
rocks and hydrothermal products at a large scale down to complex breccia horizons and bulbous lava–sediment
contacts at small scales. They have been identified for the first time at the Abu Treifiya Basin and can only be used
as widespread paleoenvironmental indicators with limitations to demonstrate magma and surface water nonexplosive
interaction. The study of peperite is important in establishing broad contemporaneity of magmatism
and sedimentation along with explosive hydrovolcanic hazards and this finding is significant for the reconstruction
of evolution in the study area. The basaltic lava peperites and sedimentary rocks are up to 350 m thick and
form a continuous stratigraphic section that is distributed regionally in the study area over a distance of 100 km.
Five types of peperites are described and interpreted as resulting frombasaltic lava bulldozed intowet, unconsolidated
sediments at their basal contacts. Evidence that the sediments were unconsolidated or poorly consolidated
and wet when the lava flowed over them include vesiculated sediment, sediment in vesicles and fractures in lava
flow and in juvenile clasts in the peperite and soft sediment deformation. All peperites in this study could be described
as blocky or fluidal on the basis of juvenile clast, but other shapes occur and mixtures of different clast
shapes are also found regardless of the host sediment. Blocky and fluidal clasts in the peperite display progressive
disintegration, suggesting decreasing temperature and increasing viscosity during fragmentation. Abundance of
blocky clasts with respect to fluidal clasts in the peperites indicates that the fluidalemplacement and low-volume
sediment fluidization in the early stages were immediately followed by quench fragmentation due to the high
viscosity of the magma. Sediment fluidization, formation of vapor films, magma–sediment density contrasts,
and explosive fragmentation as well as magma properties such as composition, viscosity, and vesicularity are
the main mechanisms invoked to generate the peperites. Variously combining these contrasting features to varying
degrees may form diverse juvenile clast shapes in peperitic domains. During cooling, the larger fluidal shaped
clasts settled to the base of the sequence, through the saturated sediment, producing the vertical (stratigraphic)
grading now preserved. Grading occurred, essentially, in situ during peperite formation and cannot be attributed
to remobilization or mass flow.
Peperites occur in phreatomagmatic intra-crater/conduit or vent-filling deposits and along contacts between
sediment and intrusions, extrusion, and hot volcaniclastic deposits in two environments. Carbonate–lava interactions
occur in shallow marine which changes to subaerial fluvio-lacustrine environment through the mingling
between lava flows and siliciclastic sediments during the onset of basaltic volcanism. This work suggests that
the Abu Treifiya Basin may be an important local for the study of subvolcanic phreatomagmatic processes and
associated phenomena.

Khalaf, E. E. D. A. H., M. Abdelwahed, A. Maged, and H. Mokhtar, "Volcanic Geosites and Their Geoheritage Values Preserved in Monogenetic Neogene Volcanic Field, Bahariya Depression, Western Desert, Egypt: Implication for Climatic Change-Controlling Volcanic Eruption", Geoheritage, pp. 1-19, 2018. AbstractWebsite

Bahariya monogenetic volcanic field is characterized by important geomorphological features (geomorphosites), namely, sub-circular maar-tuff ring, scoria cones, and domal-shaped tumuli. These geomorphosites constitute an asset for geoeducation, geotourism and miscellaneous social activities. They offer important knowledge into the paleoenvironmental and climatic factors that affected the style of volcanism at the occasion, and eventually shaped the diverse landforms found in the volcanic field. Bahariya Oasis is exclusive for its excellent locations where many volcanic heritages of high value give evidence of phreatomagmatic and effusive-controlled phases which formed volcanic landscapes under humid to dry climate. The geoheritage and archeological sites of early settlements are abundant in the Bahariya Oasis, accentuating the scientific magnitude of this region. There have been seven geosites recognized such as (1) the scoria cone, (2) the lava flows and their surface morphological features, (3) the pseudopillow fractures, (4) columnar joints, (5) peperites, (6) tumuli, and (7) rootless cones. These geosites coupled with other unique sites define the Oasis as global geopark. The latter will consider as an excellent logistical network to endorse volcanic geosciences and raise the economic growth in this part of Bahariya Oasis. The diverse geological characteristics at the Bahariya make this area a high volcanic geodiversity that can be used for geoeducational programs and geotourism. Excursions and research programs carried out by universities will contribute to enhanced geoconservation for local sustainable development. Currently, in the Bahariya region, tourism is not well developed, but it is recommended that, roads be improved to give better accessibility to the geomorphosites, and interpretative panels, informative brochures, multi-media presentations, seminars and workshops, scientific lectures, and postcards be produced to inform tourists about the geology of the region.

El-Desoky, A., A. Hassan, and A. Mahmoud, "Volcanic Ash as a Material for Soil Conditioner and Fertility", Journal of Soil Sciences and Agricultural Engineering, vol. 9, issue 10, pp. 491-495, 2018. Website
Shahin, R. R., K. N. Al-Redaiman, and M. I. D. Helal, "Volatilization of ammonia from sulphur-blended nitrogen fertilizers", Zagazig Journal of Agricultural Research (Egypt), 1999. Abstract
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Shahin, R. R., K. N. Al-Redaiman, and M. I. D. Helal, "Volatilization of ammonia from sulphur-blended nitrogen fertilizers", Zagazig Journal of Agricultural Research (Egypt), 1999. Abstract
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Eid, H. H., and A. A. Sleem, "Volatiles, Lipoids and Bioactivity of the Flowers of Oenothera Speciosa Nutt. Cultivated in Egypt", Egyptian Journal of Biomedical Sciences, vol. 25, no. November, pp. 103–126, 2007. Abstract

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Farag, M. A., and D. M. El-Kersh, "Volatiles profiling in(Carob bean) from Egypt and in response to roasting as analyzedsolid-phase microextraction coupled to chemometrics.", Journal of advanced research, vol. 8, issue 4, pp. 379-385, 2017 Jul. Abstract

is a legume tree of considerable commercial importance for the flavor and sweets industry cultivated mostly for its pods nutritive value and or several health benefits. Despite extensive studies onpod non-volatile metabolites, much less is known regarding volatiles composition which contributes to the flavor of its many food products. To gain insight intoaroma, 31 volatile constituents from unroasted and roasted pods were profiled using headspace solid-phase micro extraction (HD-SPME) analyzedquadruple mass spectrometer followed by multivariate data analyses. Short chain fatty acids amounted for the major volatile class at. (71-77%) with caproic acid (20%) and pentanoic acid (15-25%) as major components. Compared to ripe pod, roasted ripe pod was found less enriched in major volatile classes., short chain fatty acids and aldehydes, except for higher pyranone levels. Volatiles mediating for unheated and hot carob fruit aroma is likely to be related to its ()-cinnamaldehyde and pyranone content, respectively. Such knowledge is expected to be the key for understanding the olfactory and taste properties ofand its various commercial food products.

Issa, M. Y., E. Mohsen, I. Y. Younis, E. S. Nofal, and M. A. Farag, "Volatiles distribution in jasmine flowers taxa grown in Egypt and its commercial products as analyzed via solid-phase microextraction (SPME) coupled to chemometrics", Industrial Crops & Products, vol. 144, pp. 1-10, 2020.
Farag, M. A., N. m Fayek, and I. Abou Reidah, "Volatile profiling in fruit (sumac) from three different geographical origins and upon roasting as analyzed via solid-phase microextraction.", PeerJ, vol. 6, pp. e5121, 2018. Abstract

(sumac) is a fruit grown worldwide for its culinary use as a flavoring agent and for its health benefits. Despite several studies on non-volatile metabolites, much less is recognized concerning volatile composition within that genus. In an effort to expand on flavor profile sumac and its food products, we report on volatile profiling from three accessions of different origins including Palestine, Jordan and Egypt in addition to its cold tea and post roasting via headspace solid-phase microextraction (SPME). Under optimized conditions, 74 volatile components were identified belonging to alcohols, aromatics, esters, ethers, furan/aldehyde, hydrocarbons, ketones, monoterpenes, oxides and sesquiterpene hydrocarbons. Major identified components included α-pinene, naphthalene and o-cymene in Palestinian, Jordanian and Egyptian sumac, respectively. Whereas sesquiterpenes amounted for the major volatile class in fresh at ca. 40-58%, furan/aldehydes were the predominant classes in roasted fruits (58%). Volatile abundance data was further subjected to multivariate data analyses revealing furfural and nonanal enrichment in roasted compared to fresh fruits and their cold tea preparation. Seeds exhibited no aroma components which justified their removal in prior to its use as a food flavor. Such knowledge is expected to be the key for understanding the olfactory and taste properties of and its several food products.

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