Management of Tomato Root-knot Nematode Meloidogyne incognita by Plant Extracts and Essential Oils

Kamal A. M. Abo-Elyousr,Magd El-Morsi Awad,M. A. Abdel Gaid 한국식물병리학회 2009 Plant Pathology Journal Vol.25 No.2

The effect of plant extracts of eucalyptus (Eucalyptus chamadulonsis), garlic (Allium sativium), marigold (Tagetes erecta) and neem (Azadirachta indica) and essential oils were tested on the suppression of root-knot nematode Meloidogyne incognita under greenhouse and field conditions. In vitro study, all tested treatments had nematicidal effect on nematode juveniles after 24 and 48 hours from exposures. The highest percentage of nematode mortality was achieved by application of neem extract (65.4%), essential oils (64.4%) and marigold extract (60.5%), followed by garlic and eucalyptus extracts (38.7-39.5%). Under greenhouse and field conditions, neem extract and essential oils treatments were more effective in reducing population numbers of the M. incognita in soil and root gall index compared to other treatments. In field experiments, the maximum protection of tomato plant against root-knot nematode was obtained by application of neem and essential oil treatments, 44.2 and 32.6%, respectively.

Management of Tomato Root-knot Nematode Meloidogyne incognita by Plant Extracts and Essential Oils

Abo-Elyousr, Kamal A.M.,Awad, Magd El-Morsi,Gaid, M.A. Abdel The Korean Society of Plant Pathology 2009 Plant Pathology Journal Vol.25 No.2

The effect of plant extracts of eucalyptus (Eucalyptus chamadulonsis), garlic (Allium sativium), marigold (Tagetes erecta) and neem (Azadirachta indica) and essential oils were tested on the suppression of root-knot nematode Meloidogyne incognita under greenhouse and field conditions. In vitro study, all tested treatments had nematicidal effect on nematode juveniles after 24 and 48 hours from exposures. The highest percentage of nematode mortality was achieved by application of neem extract (65.4%), essential oils (64.4%) and marigold extract (60.5%), followed by garlic and eucalyptus extracts (38.7-39.5%). Under greenhouse and field conditions, neem extract and essential oils treatments were more effective in reducing population numbers of the M. incognita in soil and root gall index compared to other treatments. In field experiments, the maximum protection of tomato plant against root-knot nematode was obtained by application of neem and essential oil treatments, 44.2 and 32.6%, respectively.

Hypolipidemic Effect of Moringa oleifera Lam Leaf Powder and its Extract in Diet-Induced Hypercholesterolemic Rats

Shahinaz A. Helmy,Nashwa F.S. Morsy,Shahenda M. Elaby,Mohammed A.A. Ghaly 한국식품영양과학회 2017 Journal of medicinal food Vol.20 No.8

The leaves of Moringa oleifera Lam possess some potential medicinal value. The aim of this study was to evaluate the protective effect of M. oleifera leaf powder and its extract against hyperlipidemia in rats. Adult male albino rats were divided into six groups. The first group was fed on a basal diet that served as a negative control, whereas the others were fed on a high-fat diet (HFD) containing moringa leaf powder at 0.737% or 1.475% or administered daily with 200 or 400 mg dry moringa leaf extract/kg bw for 60 days. A positive control group was fed on the HFD. Serum indices related to lipid profile, oxidative status, and liver function were analyzed. Feeding rats on an HFD containing moringa leaf powder at 0.737% or an oral dose of its dry extract at 400 mg/kg bw alleviated the harmful elevation of cholesterol, triglycerides, low-density lipoprotein cholesterol, malondialdehyde, and the activities of alanine aminotransferase and aspartate aminotransferase in serum that were induced by the HFD. This is the first study demonstrating the hypocholesterolemic effect of M. oleifera leaf powder.

Determination of the Optical Properties of Bent Optical Fibre by Using an Automatic Fringe Pattern Analysis

M. A. M. El-Morsy,H. H. Wahba 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.5

The automatic multiple-beam Fizeau fringes technique with the aid of the slabs model is used to characterize the macroscopic and microscopic optical parameters of the bent optical fibre cladding. The contour line of the interferogram is obtained using one dimensional Fourier transform. The used mathematical expressions based on the consideration of refraction of the beam through the liquid/bent fibre interface. The refractive index profile, the induced birefringence profile and the dispersions are studied along the cladding diameter. The influences of the dispersion parameters such as the oscillation energy E_0 and the dispersion energy Ed for the optical fibre cladding due to bending are investigated. Also the variation occurred in the molecular Polarizability and corresponding parameters are illustrated.

PILOT INJECTION OF DME FOR IGNITION OF NATURAL GAS AT DUAL FUEL ENGINE-LIKE CONDITIONS

M. H. MORSY,D. H. AHN,S. H. CHUNG 한국자동차공학회 2006 International journal of automotive technology Vol.7 No.1

The ignition delay of a dual fuel system has been numerically investigated by adopting a constant volume chamber as a model problem simulating diesel engine relevant conditions. A detailed chemical kinetic mechanism, consisting of 28 species and 135 elementary reactions, of dimethyl ether (DME) with methane (CH₄) sub-mechanism has been used in conjunction with the multi-dimensional reactive flow KIVA-3V code to simulate the autoignition process. The start of ignition was defined as the moment when the maximum temperature in the combustion vessel reached to 1900 K with which a best agreement with existing experiment was achieved. Ignition delays of liquid DME injected into air at various high pressures and temperatures compared well with the existing experimental results in a combustion bomb. When a small quantity of liquid DME was injected into premixtures of CH₄/air, the ignition delay times of the dual fuel system are longer than that observed with DME only, especially at higher initial temperatures. The variation in the ignition delay between DME only and dual fuel case tend to be constant for lower initial temperatures. It was also found that the predicted values of the ignition delay in dual fuel operation are dependent on the concentration of the gaseous CH₄in the chamber charge and less dependent on the injected mass of DME. Temperature and equivalence ratio contours of the combustion process showed that the ignition commonly starts in the boundary at which near stoichiometric mixtures could exists. Parametric studies are also conducted to show the effect of additive such as hydrogen peroxide in the ignition delay. Apart from accurate predictions of ignition delay, the coupling between multi-dimensional flow and multi-step chemistry is essential to reveal detailed features of the ignition process.

Effect of the Volatile Oil of Nigella sativa Seeds and Its Components on Body Temperature of Mice: Elucidation of the Mechanisms of Action

M. M. Ashour,K. E. H. El Tahir,M.G. Morsi,N.A. Aba-Alkhail 한국생약학회 2006 Natural Product Sciences Vol.12 No.1

effect(s) of the volatile oil (VO) of Nigella sativa and its two components, α-pinene and ρ-cymeneon body temperature of male and female conscious mice were studied. Further investigations to delineate themechanism(s) of action of the observed efect(s) by using various blockers involved in the central regulation ofbody temperature were made. VO and α-pinene caused significant reductions in rectal body temperature at is and30 minute after treatment. ρVO and α-pinene-induced hypothermia significantly. Nalbuphine inhibited α-pinene-induced hypothermiasignificantly but did not affect VO-induced hypothermia. Droperidol potentiated VO and α-pinene-inducedhypothermia to a non-significant level; whereas atropine potentiated VO-induced hypothermia non-significantly.The study confirms further the role of serotoninergic receptors in the mechanism(s) of the observedpharmacological efects of the VO of Nigella sativa. It also indicated a possible role of opioid receptors in α-KeywordsNigella sativa, α-pinene, ρ-cymene, receptor blockers, serotoninergic receptors

Effect of additives on ignition of methane at homogeneous charge compression ignition engine-like conditions

Morsy, M. H.,Chung, S. H. Professional Engineering Publishing Ltd 2007 Proceedings of the Institution of Mechanical Engin Vol.221 No.5

Low Cost Alcoholic Breath Sensor Based on SnO2 Modified with CNTs and Graphene

M. Morsy,I. S. Yahia,H. Y. Zahran,M. Ibrahim 한국물리학회 2018 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.73 No.10

In this work, SnO2 modified with reduced graphene oxide (rGO) and carbon nanotubes (CNTs) separately and combined sensitized by using the co-precipitation method and their sensing behavior toward ethanol vapor at room temperature were investigated. An interdigitated electrode (IDE) gold substrate is very expensive compared to a uorine doped tin oxide (FTO) substrate; hence, we used the latter to reduce the fabrication cost. The structure and the morphology of the studied materials were characterized by using differential thermal analyses (DTA) and thermogravimetric analysis (TGA), transmission electron microscope (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Brunauer-Emmett-Teller surface area and Barrett-Joyner- Halenda (BJH) pore size measurements. The studied composites were subjected to ethanol in its gas phase at concentrations from 10 to 200 ppm. The present composites showed high-performance sensitivity for many reasons: the incorporation of SnO2 and CNTs which prevents the agglomeration of rGO sheets, the formation of a 3D mesopourus structure and an increase in the surface area. The decoration with rGO and CNTs led to more active sites, such as vacancies, which increased the adsorption of ethanol gas. In addition, the mesopore structure and the nano size of the SnO2 particles allowed an ecient diffusion of gases to the active sites. Based on these results, the present composites should be considered as ecient and low-cost sensors for alcohol.

Influence of Sunflower Whole Seeds or Oil on Ruminal Fermentation, Milk Production, Composition, and Fatty Acid Profile in Lactating Goats

Morsy, T.A.,Kholif, S.M.,Kholif, A.E.,Matloup, O.H.,Salem, A.Z.M.,Elella, A. Abu Asian Australasian Association of Animal Productio 2015 Animal Bioscience Vol.28 No.8

This study aimed to investigate the effect of sunflower seeds, either as whole or as oil, on rumen fermentation, milk production, milk composition and fatty acids profile in dairy goats. Fifteen lactating Damascus goats were divided randomly into three groups (n = 5) fed a basal diet of concentrate feed mixture and fresh Trifolium alexandrinum at 50:50 on dry matter basis (Control) in addition to 50 g/head/d sunflower seeds whole (SS) or 20 mL/head/d sunflower seeds oil (SO) in a complete randomized design. Milk was sampled every two weeks during 90 days of experimental period for chemical analysis and rumen was sampled at 30, 60, and 90 days of the experiment for ruminal pH, volatile fatty acids (tVFA), and ammonia-N determination. Addition of SO decreased (p = 0.017) ruminal pH, whereas SO and SS increased tVFA (p<0.001) and acetate (p = 0.034) concentrations. Serum glucose increased (p = 0.013) in SO and SS goats vs Control. The SO and SS treated goats had improved milk yield (p = 0.007) and milk fat content (p = 0.002). Moreover, SO increased milk lactose content (p = 0.048) and feed efficiency (p = 0.046) compared to Control. Both of SS and SO increased (p<0.05) milk unsaturated fatty acids content specially conjugated linolenic acid (CLA) vs Control. Addition of SS and SO increased (p = 0. 021) C18:3N3 fatty acid compared to Control diet. Data suggested that addition of either SS or SO to lactating goats ration had beneficial effects on milk yield and milk composition with enhancing milk content of healthy fatty acids (CLA and omega 3), without detrimental effects on animal performance.

PILOT INJECTION OF DME FOR IGNITION OF NATURAL GAS AT DUAL FUEL ENGINE-LIKE CONDITIONS

MORSY M. H.,AHN D. H.,CHUNG S. H. The Korean Society of Automotive Engineers 2006 International journal of automotive technology Vol.7 No.1

The ignition delay of a dual fuel system has been numerically investigated by adopting a constant volume chamber as a model problem simulating diesel engine relevant conditions. A detailed chemical kinetic mechanism, consisting of 28 species and 135 elementary reactions, of dimethyl ether (DME) with methane ($CH_{4}$) sub-mechanism has been used in conjunction with the multi-dimensional reactive flow KIVA-3V code to simulate the autoignition process. The start of ignition was defined as the moment when the maximum temperature in the combustion vessel reached to 1900 K with which a best agreement with existing experiment was achieved. Ignition delays of liquid DME injected into air at various high pressures and temperatures compared well with the existing experimental results in a combustion bomb. When a small quantity of liquid DME was injected into premixtures of $CH_{4}$/air, the ignition delay times of the dual fuel system are longer than that observed with DME only, especially at higher initial temperatures. The variation in the ignition delay between DME only and dual fuel case tend to be constant for lower initial temperatures. It was also found that the predicted values of the ignition delay in dual fuel operation are dependent on the concentration of the gaseous $CH_{4}$ in the chamber charge and less dependent on the injected mass of DME. Temperature and equivalence ratio contours of the combustion process showed that the ignition commonly starts in the boundary at which near stoichiometric mixtures could exists. Parametric studies are also conducted to show the effect of additive such as hydrogen peroxide in the ignition delay. Apart from accurate predictions of ignition delay, the coupling between multi-dimensional flow and multi-step chemistry is essential to reveal detailed features of the ignition process.