Environmental Impact Assessment (EIA) of Marine Structures - A Case Study

Rasha El Gohary,Nagy A. A. Hassan 대한토목학회 2012 KSCE JOURNAL OF CIVIL ENGINEERING Vol.16 No.5

The purpose of this research is to outline the issues that needed to be considered when establishing an Environmental Impact Assessment (EIA) for ports, harbors, marinas and other related facilities. The study explains the steps done when preparing the EIA study for establishing four jetties in front of four hotels and two jetties in front of two marinas, the site lies within a number of touristic villages in El Sharm El Quible region on the coastal area of the Red Sea, located 34 km south of El Qusair city, Red Sea Governorate. The EIA study includes site selection, baseline environmental, project impact on the environment,environmental impact assessment, mitigation measurement, and environmental management plan. The study will examine all aspects and activities of the study area in terms of the impact on the environmental components, provide the best alternatives to preserve the environment, and avoid potential negative effects during the establishment and operation of the project in order to outline the issues that need to be considered when establishing an EIA for ports, harbors, marinas and other related facilities. However, as each development intervention is unique, the one size fits all is not applicable. Key issues may differ from project to another. Accordingly, specific key issues may be identified through a planning focus meeting and through consultation with the existing community. The purpose of this research is to outline the issues that needed to be considered when establishing an Environmental Impact Assessment (EIA) for ports, harbors, marinas and other related facilities. The study explains the steps done when preparing the EIA study for establishing four jetties in front of four hotels and two jetties in front of two marinas, the site lies within a number of touristic villages in El Sharm El Quible region on the coastal area of the Red Sea, located 34 km south of El Qusair city, Red Sea Governorate. The EIA study includes site selection, baseline environmental, project impact on the environment,environmental impact assessment, mitigation measurement, and environmental management plan. The study will examine all aspects and activities of the study area in terms of the impact on the environmental components, provide the best alternatives to preserve the environment, and avoid potential negative effects during the establishment and operation of the project in order to outline the issues that need to be considered when establishing an EIA for ports, harbors, marinas and other related facilities. However, as each development intervention is unique, the one size fits all is not applicable. Key issues may differ from project to another. Accordingly, specific key issues may be identified through a planning focus meeting and through consultation with the existing community.

Environmental analysis of present and future fuels in 2D simple model marine gas tubines

El Gohary, M. Morsy The Society of Naval Architects of Korea 2013 International Journal of Naval Architecture and Oc Vol.5 No.4

Increased worldwide concerns about fossil fuel costs and effects on the environment lead many governments and scientific societies to consider the hydrogen as the fuel of the future. Many researches have been made to assess the suitability of using the hydrogen gas as fuel for internal combustion engines and gas turbines; this suitability was assessed from several viewpoints including the combustion characteristics, the fuel production and storage and also the thermodynamic cycle changes with the application of hydrogen instead of ordinary fossil fuels. This paper introduces the basic environmental differences happening when changing the fuel of a marine gas turbine from marine diesel fuel to gaseous hydrogen for the same power output. Environmentally, the hydrogen is the best when the $CO_2$ emissions are considered, zero carbon dioxide emissions can be theoretically attained. But when the $NO_x$ emissions are considered, the hydrogen is not the best based on the unit heat input. The hydrogen produces 270% more $NO_x$ than the diesel case without any control measures. This is primarily due to the increased air flow rate bringing more nitrogen into the combustion chamber and the increased combustion temperature (10% more than the diesel case). Efficient and of course expensive $NO_x$ control measures are a must to control these emissions levels.

Utilization of alternative marine fuels for gas turbine power plant onboard ships

El Gohary, M. Morsy,Seddiek, Ibrahim Sadek The Society of Naval Architects of Korea 2013 International Journal of Naval Architecture and Oc Vol.5 No.1

Marine transportation industry is undergoing a number of problems. Some of these problems are associated with conventional marine fuel-oils. Many researchers have showed that fuel-oil is considered as the main component that causes both environmental and economic problems, especially with the continuous rising of fuel cost. This paper investigates the capability of using natural gas and hydrogen as alternative fuel instead of diesel oil for marine gas turbine, the effect of the alternative fuel on gas turbine thermodynamic performance and the employed mathematical model. The results showed that since the natural gas is categorized as hydrocarbon fuel, the thermodynamic performance of the gas turbine cycle using the natural gas was found to be close to the diesel case performance. The gas turbine thermal efficiency was found to be 1% less in the case of hydrogen compared to the original case of diesel.

Estimation of parameters including a quadratic failure rate semi-Markov reliability model

El-Gohary, A.,Alshamrani, A. The Korean Reliability Society 2011 International Journal of Reliability and Applicati Vol.12 No.1

This paper discusses the stochastic analysis and the statistical inference of a quadratic failure rate semi-Markov reliability model. Maximum likelihood procedure will be used to obtain the estimators of the parameters included in this reliability model. Based on the assumption that the lifetime and repair time of the system units are random variables with quadratic failure rate, the reliability function of this system is obtained. Also, the distribution of the first passage time of this system is derived. Many important special cases are discussed.

Estimation of Parameters in a Generalized Exponential Semi-Markov Reliability Models

El-Gohary Awad The Korean Reliability Society 2005 International Journal of Reliability and Applicati Vol.6 No.1

This paper deals with the stochastic analysis of a three-states semi-Markov reliability model. Using both the maximum likelihood and Bayes procedures, the parameters included in this model are estimated. Next, assuming that the lifetime and repair time are generalized exponential random variables, the reliability function of this system is obtained. Then, the distribution of the first passage time of this system is discussed. Finally, some of the obtained results are compared with those available in the literature.

A Mixture of Multivariate Distributions with Pareto in Reliability Models

El-Gohary Awad The Korean Reliability Society 2006 International Journal of Reliability and Applicati Vol.7 No.1

This paper presents a new class of multivariate distributions with Pareto where dependence among the components is characterized by a latent random variable. The new class includes several multivariate and bivariate models of Marshall and Olkin type. It is found the bivariate distribution with Pareto is positively quadrant dependent and its mixture. Some important structural properties of the bivariate distributions with Pareto are discussed. The distribution of minimum in a competing risk Pareto model is derived.

Oreochromis spp. and Clarias Lazera as a Source of Transmitting Encysted Metacercariae to Man

El-Gohary, A.H.,Samaha, I.A. Asian Australasian Association of Animal Productio 1997 Animal Bioscience Vol.10 No.4

A total of 135 freshwater fish samples (Oreochromis spp. <85> and Clarias lazera <50>) were collected from different localities (shops and fish markets) in Alexandria Province-Egypt and examined for the presence of parasitic larval stages. The obtained data found the overall mean of the infestation with encysted metacercariae was 71.1% in the examined fish. The rates of infestation with encysted metacercariae were 72.9% and 68.0% in the examined Oreochromis spp. and Clarias lazera, respectively. The highest prevalence of the encysted metacercariae was found in summer (81.8%) in case of Oreochromis spp. and in winter (92.3%) in case of Clarias lazera, all these seasonal differences are statistically significant. The rate of infestation of encysted metacercariae in the anterior third, middle third and posterior third of Oreochromis spp. was found to be 82.3%, 74.2% and 95.2%, respectively, while 88.2%, 88.2% and 91.2%, respectively, in Clarias lazera. Moreover, the rate of infestation of encysted metacercariae in eyes, gills, liver, kidney and branchial cavity of Oreochromis spp. was 91.9%, 70.9%, 20.9%, 46.8% and 32.2%, respectively. In Clarias lazera the infestation rate was found to be 47.1%, 70.6%, 8.8% and 38.2% in the gills, liver, spleen and kidney, respectively. The zoonotic and public health importance of the encysted metacercariae are causes severe visceral pain, abdominal discomfort, intermittent bloody diarrhoea and colic after consumption of inadequately cooked fish especially Tilapia spp. (Oreochromis spp.).

STUDY ON AFLATOXINS IN SOME FOODSTUFFS WITH SPECIAL REFERENCE TO PUBLIC HEALTH HAZARD IN EGYPT

EL-GOHARY, A.H. Asian Australasian Association of Animal Productio 1995 Animal Bioscience Vol.8 No.6

A total of 455 food samples representing 22 different food types were collected from several localities at Alexandria province in Egypt. Aflatoxin B1 and aflatoxin M1 were detected in 5 out of 455 (1.1%) of these food samples. From the same samples 206 fungal isolates were obtained. Thirty two of these isolates (15.5%) were found to be aflatoxin producers. Aspergillus flavus was the dominant isolate, while Aspergillus parasaticus was also isolated from a few other food samples. Among locally consumed foodstuffs. Peanut (7.5%) and Milk powder (6.6%) were found to be a suitable substrates for aflatoxin production. The hygienic and public health significance of the isolated aflatoxigenic strains were discussed.

Parameters Estimation of Generalized Linear Failure Rate Semi-Markov Reliability Models

El-Gohary, A.,Al-Khedhair, A. The Korean Reliability Society 2010 International Journal of Reliability and Applicati Vol.11 No.1

In this paper we will discuss the stochastic analysis of a three state semi-Markov reliability model. Maximum likelihood procedure will be used to obtain the estimators of the parameters included in this reliability model. Based on the assumption that the lifetime and repair time of the system units are generalized linear failure rate random variables, the reliability function of this system is obtained. Also, the distribution of the first passage time of this system will be derived. Some important special cases are discussed.

The Impact of Financial Technology on Facilitating E-Government Services in Egypt

Esam El GOHARY 한국유통과학회 2019 유통과학연구 Vol.17 No.5

Purpose – Nowadays financial technology is crucial for each organization to facilitate business transactions and make them easier. This paper was conducted with the purpose of determining the effect of fintech including services e-payment, bills e-payment, ways of payment and bank accounts with e-government on facilitating e-government services in terms of availability, accessibility, efficiency and responsiveness. Research design, data, and methodology – The problem of this paper is summarized in the lack of studies in this subject. So, a survey was applied on 400 respondents in Egypt to investigate the impact of fintech on facilitating e-government services, in order to determine which fintech item can affect any of facilitating services dimensions. Results – The results revealed that bank accounts with e-government doesn’t affect any of facilitating services dimension, while each of the remain items has an effect on some dimensions and does not has effect on others. Conclusions – Data analysis revealed that the most obstacles that face respondents resulted in the weakness of internet networks, lack of efficient employees in e-government portal and lack of system effectiveness. In general, it clears that fintech implementation affect the dimensions of facilitating e-government services, however not all fintech implementation components have the same effect on the dimensions.