European Journal of Scientific Research
Volume 131 No 2
Measurement of Radon Gas Concentration in Bentonite Samples by Using Nuclear Track Detector (CR-39)
Khalid H. Abass, Ismael Kh. Hasan and Ali R. Abdul Ridha
In the present work, we have measured the radon gas concentration in four bentonite samples different in origin(Iraq, Al-Saudi Arabia, Iran, India), by using alpha-emitters registrations which are emitted from radon gas in (CR-39) nuclear track detector.
The obtained results have shown that the highest average radon gas concentration in bentonite samples was found in Al-Saudi Arabia sample, which was (36.75 Bq/m3), while the lowest average radon gas concentration in bentonite samples was found in Iran sample, which was (9.17 Bq/m3). The present results show that the radon gas concentration in all bentonite samples is below the allowed limit from International Commission of Radiation Protection (ICRP) agency.
Keywords: Bentonite, Radon Gas, CR-39
Zootechnical Effect of some Medicinal and Aromatic Plants at Broiler Chickens(Gallus gallus)
Ouldsidimoctar Y., Azeroual E., Benazzouz B.,Ouichou. A., El Hessni. A. and Mesfioui
This work aims at studying the zootechnical effect of five additives antibiotic (Oxytetracyclin
), fennel (Foeniculumvulgare
), linen (Linumusitatissimum
), rosemary (Rosmarinusofficinalis
) and thyme (Thymus vulgaris
) on the zootechnical performances of broiler chickens, have been incorporated into the diet with a rate of 3% of the daily ration.The zootechnical parameters studied are the following: Average Live Weight (ALW), the Average Daily Gain (ADG) Consumption Index (CI), and Mortality Rate (MR). A workforce of 600 day-old chicks, were divided into six parquet.Reached results showed that the ALW at 42day is 3098g, 2990g, 2938g, 2866g and 2774g respectively for lot fennel, linen, thyme, rosemary and antibiotic ; with a highly significant difference (p <0.0001) compared to the control 2640g. The results related toADGindicate that subjects belonging to the batches treated with fennel, linen and thyme, expressed the best performance with ADG respective of 83.73g/d, 80.98g/d, 79.21g/d, followed by rosemary 76.95g/d and antibiotic 74.62 g/d, against 70.71g/d for the control group with a difference which is statistically highly significant (p <0.0001). For CI, fennel has the best feed conversion with a value of 1.29, followed by linen 1.41 and control 1.52, a highly significant difference (p <0.0001). The MR of 3%, 2.2%, 1.4%, 3.2%, 0.8% and 2.6% for the control group, antibiotic, fennel, linen, rosemary and thyme, respectively, did not express significant This work aims at studying the zootechnical effect of five additives antibiotic (Oxytetracyclin), fennel (Foeniculumvulgare), linen (Linumusitatissimum), rosemary (Rosmarinusofficinalis) and thyme (Thymus vulgaris) on the zootechnical performances of broiler chickens, have been incorporated into the diet with a rate of 3% of the daily ration.The zootechnical parameters studied are the following: Average Live Weight (ALW), the Average Daily Gain (ADG) Consumption Index (CI), and Mortality Rate (MR). A workforce of 600 day-old chicks, were divided into six parquet.Reached results showed that the ALW at 42day is 3098g, 2990g, 2938g, 2866g and 2774g respectively for lot fennel, linen, thyme, rosemary and antibiotic ; with a highly significant difference (p <0.0001) compared to the control 2640g. The results related toADGindicate that subjects belonging to the batches treated with fennel, linen and thyme, expressed the best performance with ADG respective of 83.73g/d, 80.98g/d, 79.21g/d, followed by rosemary 76.95g/d and antibiotic 74.62 g/d, against 70.71g/d for the control group with a difference which is statistically highly significant (p <0.0001). For CI, fennel has the best feed conversion with a value of 1.29, followed by linen 1.41 and control 1.52, a highly significant difference (p <0.0001). The MR of 3%, 2.2%, 1.4%, 3.2%, 0.8% and 2.6% for the control group, antibiotic, fennel, linen, rosemary and thyme, respectively, did not express significant differences depending on the type of treatment (p> 0.05).
Keywords: MAP; additive; antibiotic resistance; growth factor; Broiler chickens
Les Avantages D’ajout de la Chaux aux Enrobés Bitumineux
The Benefits of Lime Added in Hot Mix Bituminous
Youssef WAHIB and My El Arbi ABIDI
The addition of lime in the mix bituminous goes back to the end of XIXth century. Many experiences were interested on this matter, especially in the United States and in Europe, in Morocco this aspect is not developed yet, except some simple experiences. This article demonstrates the power of lime, as an active filler addition, to increase the performances of the mix through multiple mechanisms, which extend significantly the useful life of the pavement; these benefits are demonstrated through the experiences realized in the world and also in Morocco.
Keywords: Mix bituminous, lime, asphalt, aggregate, stiffness power.
3D Design and Simulation Using Comsol of Platinum Piezoresistive Pressure Sensor
N. Medjahdi and N. Benmoussa
MEMS are systems of small size, light weight, enhanced performance and reliability finding widest of applications in sectors of Automotive, instrumentation and environment area, especially in aspects of weather monitoring and forecast. Nowadays it has become common for scientist and engineers working in micro-electro mechanical system area to simulate the structure using simulation software like COMSOL before actual fabrication. The software helps to create the structure, mesh it and then simulate. In this paper we have modeled and simulated the micro pressure sensor wish can be used to determine the environment pressure with for example piezoresistive detection. The analysis is carried out for different parameters. In this work we need to study the stress repartition on the Silicon membrane surface. This study is very important because it allows us to determinate where the stress is maximal and to place there the four piezoresistors, wish provides a maximal sensitivity to the pressure. Differing from traditional silicon piezoresistive pressure sensor, we use platinum piezoresistive pressure sensor, in wish platinum is used as the piezoresistor material of pressure sensor. We use platinum as the sensing material of pressure sensor to simplify the fabrication process to integrate pressure sensor into for example multi-sensor for micro weather station.
Keywords: MEMS, Pressure Sensor, Deflection, Stress, Piezoresistor
Study of antimicrobial effect for water extracts of Lepidiumaucheri Boissandpeel Actinidiadeliciosaon growth some types of bacteriainvitro
FRAH RAZZAQ KBYEH
Were prepared from water extracts belonging to two of the plants which leaves and stalks and husks LepidiumaucheriBoiss mainland Actinidiadeliciosa has studied the effect of water extracts of plants mentioned in the growth of a Escherichia coli, Staphyllcoccusaureus , Klebsiella sp. and Streptococcus feacalis
and two concentrations of (25,50)mg / ml has varied effect of these extracts on the bacteria and the relationship between them was any direct correlation greater the concentration of extract increased the inhibitory effect of aqueous extract showed him to the mainland inhibition rates LepidiumaucheriBoiss higher than the peel Actinidiadeliciosa and to varying degrees.
Signature Identification and Recognition Using Elman Neural Network
Hind Rostom Mohammed and Elaf Jabbar Abdul Razzaq Al-Taee
The problem of signature recognition, which is a special case of image analysis, describes how to extracts the features efficiently and verifies the signature perfectly. Human signature can be handling as the image and can be Identified by using Elman neural network. This paper deals with the signature using global features extraction and Elman neural network in which the human signature is captured In image acquisition stage, scanner was used as image acquisition device. In image processing, many techniques are used, through which the signature is extracted from the original image, filtered from noises, and image improvements that prepare the signature to the feature extraction stage. Feature extraction stage which global features is implemented and ending with vector of values for feature extraction method that describes the signature image features. Each feature vector is fed Elman neural network which, that will characterize the signature to whom it belongs.
Data base contain 500 signatures for 100 person each person have 5 signatures with different orientation, size, deviation, etc. In an Elman network, the weights from the hidden layer to the context layer are set to one and are fixed because the values of the context neurons have to be copied exactly. The initial output weights of the context neurons are equal to half the output range of the other neurons in the network. The Elman network can be trained with gradient descent back propagation and optimization methods. The accuracy of proposed method was is highly promised result and dependable.
Keywords: Signature, Neural Networks, Signature Identification and Recognition, Elman neural network.
vulnerability of Sources and Drilling Artesian and Aquifer than Nitrate Pollution in the Region of Zagnanado Zogbodomey Center of Benin
Gilbert Tite LALEYE, Léonce Firmin DOVONON, Patrick A.EDORH, Euloge AGBOSSOU and Christophe Sègbé HOUSSOU
The presence of nitrates in drinking water is primarily attributable to human activities. The use of synthetic fertilizers and manures, crop-associated and intensive farming, promotes the appearance of nitrates in the water. ). The amount of fertilizer for all crops and ZogbodomeyZagnanado was respectively 600 tonnes and 350 tonnes. The area planted to cotton production 2013- 2014, were respectively Zogbodomey and Zagnanado to 2650.64 ha to 1350 ha. Nitrate and nitrite in the cotton fields, overburden springs and artesian wells in the samples of water from artesian springs and boreholes were measured. In the area of dry land, the land covers present the values of the highest nitrate as the cotton fields, regardless of the particular site. For cons, the nitrate content in groundwater is more important than in source waters. Nitrate concentrations below 3 mg-N / l were observed in most of the samples taken between 2012 and 2013 in the waters of artesian wells and springs in the area made Zagnanado and Zogbodomey, except in the waters of artesian springs of Massavi and Ahandatin and water drilling Zoukou. Nitrate and nitrite in the water aquifers of the two towns are, in the vast majority of cases, very average. Thus, the levels of nitrates and nitrites above 3 mg-N / L were observed in 90.9% of samples taken at the level of large wells to Zogbodomey and 69.23% of the samples taken at the high wells dimension Zagnanado in 2013. In general, the water contamination nitrate is acceptable in the region.
Keywords: pollution; nitrate; sources and wells artesian; aquifer; Zagnanado- zogbodomey
Patterns and Distribution of drug dependence and associated risk factors among male youth in Upper Egypt
Sameh Sh.Zaytoun, Raouf M. Afifi, Mohamed A. Alsenbsy and Hesham AK. Ayoub
Drug abuse is a major behavioral problem which poses an overwhelming burden upon the publcs’ health and national economies. This study aimed to determine the patterns of drug dependence in young male populations in Upper Egypt, and associated risks.
1000 Egyptian male 18-28 years old attending for medical examination in Quena University Outpatient Clinics between March 2013 and March 2014 were surveyed; prevalence and risk factors for drug abuse were analyzed.
Drug dependence was reported by 28 (2.8%) subjects; hashish was the commonest drug used (71.4%). Most abusers (78.6%) took the drug in the form of smoking alone or combined with sniffing (14.3%). Most abusers (92.9%) were occasional users. Likewise, 64.3% of them also had this habit for ≤5 years. High social class was a significant risk for drug abuse (Fisher’s exact, p<0.001); living in rural areas was protective [X2
(df= 1) =8.39, p=0.004]. Smokers tended to be either drug abusers (Fisher’s exact, p<0.001) or alcohol consumers (Fisher’s exact, p=0.013). The presence of extra-marital sexual activity has also been risk for drug abuse (Fisher’s exact, p<0.0001).
Drug dependence is influenced by certain socio-demographic factors, the control of which helps minimize burden of such soaial evel.
Keywords: Drug dependence, young aduts, risks, Egypt.
A Comparative Study of Counselling Needs Between Tanzanian and Ghanaian Junior Secondary School Students: Implication for Counselors and Policy Makers
Abdullah Seif Abdullah Al Miskry and Sofoh H. Hassane
The purpose of this study was to examine and compare the counselling needs of Tanzanian and Ghanaian junior secondary school students. The Counselling and Guidance Needs Assessment (Hassane, 2010) was used to identify the counselling needs of both Tanzanian and Ghanaian samples. T-test and ANOVA were employed in data analysis. The results suggested significant differences in counselling needs of junior secondary school students of the two countries. In addition, significant differences were found in the counselling needs of the two samples across age, gender, location, and grade levels. Overall, the mean counselling needs of Tanzanian sample were higher than those of Ghanaian in all three domains: personal/social, academic, and career domains. The findings highlighted the importance of individual characteristics as well as cultural factors in assessing and identifying students' counselling needs. These findings suggested that both Tanzania and Ghana junior secondary schools are in need of counselling programs to address students' needs. The cultural aspects were further discussed and improvements of counselling practices in junior secondary schools of both countries were recommended.
Keywords: Counselling needs, Ghana, Tanzania, junior secondary school.
A Mobile Agent System to Enhance DoS and DDoS Detection in Cloud Computing
Abdelali Saidi, El Mehdi Bendriss, Ali Kartit and Mohamed El Marraki
The evolution of cloud computing is strongly tied to its security. Among the questions that we invoke before trying it is the possibility to access information anytime.
Deny of service is a type of attack that aim to impair the information availability. It can be caused by an abnormal use of a resource or by a violation to the mechanism of a network service.
This paper is about a mobile agent system that enhances the detection of DoS and DDoS flooding attacks in a virtualized cloud computing.
Keywords: IDS; Mobile agent; DoSand DDoSattacks; Cloud computing.