Open Access Short Research Article

Study of Sustainable Nautical Ecotourism Management on Kepulauan Seribu Jakarta

Linda Noviana, Laila Febrina

Current Journal of Applied Science and Technology, Page 1-8
DOI: 10.9734/BJAST/2016/30757

Kepulauan Seribu has nautical ecotourism potential that locates in the entire island. That potential become primary tourism activities in development of Kepulauan Seribu nautical ecotourism. In the last ten years, growth of tourists number occurs cause serious environmental degradation. Therefore, nautical tourism management studies are needed in order to be sustainable. Based on that data, objectives of this study are research for strengths, weaknesses, opportunities and threats; and most best management strategy for Kepulauan Seribu nautical tourism development. Research area located at Taman Nasional Kepulauan Seribu. The SWOT analysis strategy data concluded that: higher value of strenghts is affordable and economic accomodation and transportation (0.06); higher value of weaknesses is disintegrated management system (0.07); higher value of opportunities is growth of tourist number (0.05); and higher value of threats is limit of tourist capacity (0.07). The best management strategy for Kepulauan Seribu nautical tourism development are strengthening coordination between sectors, zonation based on tour. 

Open Access Original Research Article

Impact of Dust Storm Intensity on Some Metrological Elements and Aerosol Optical Properties (Case Study: Baghdad, Iraq)

Saadiyah H. Halos, Monim H. Al-Jiboori, Osama T. Al-Taai

Current Journal of Applied Science and Technology, Page 1-10
DOI: 10.9734/BJAST/2016/31460

Based on diurnal horizontal visibility and wind speed, three dust storms types and non-dusty days are identified in spring and summer seasons during 2005-2013 for Baghdad city to evaluate the impact of dust storm (DS) intensity on some meteorological elements and aerosol optical properties (AOP). The frequency of westerly and northwesterly winds increases significantly in three DS type days. The mean air temperature have (lower/higher) values in DS days during the (day/night) than non-dusty days while the relative humidity values have opposite phase. The maximum difference in air temperature and relative humidity in dusty days from its values in non-dusty days is higher in severe DS than in moderate and light DS at night time. The solar radiation has very good correlations with dust particles during the daytime where the high percentage of reduction of solar radiation in severe DS is about (45%) while reductions is about 32% in moderate DS and 23% in light DS. The variations in AOP are proportional to intensity of the DS. Increase in aerosol absorption optical depth (AAOD), aerosol extinction optical depth (AOD) at 388 nm and 500 nm and aerosol index (AI) while for aerosol single scattering albedo (SSA) show decrease during dust storm that means the process of aerosols absorption is more active than scattering during DS. This paper is interesting and the presented results may be particularly useful in the development of optical communication systems in the studied area.

Open Access Original Research Article

Acceptability of Instant Cassava-soybean Based Complementary Food by Weaning Mothers

Faustina Dufie Wireko-Manu, Mabel Birago Otu, Enoch Aryeetey, Collins Quarcoo, Ibok Oduro

Current Journal of Applied Science and Technology, Page 1-11
DOI: 10.9734/BJAST/2016/30162

Aims: The objective of this study was to formulate and evaluate some functional properties and sensory qualities of cassava-soybean complementary food using a relatively cheaper method; Steam Blanching

Study Design: Qualitative and quantitative.

Place and Duration of Study: Department of Food Science and Technology, Kwame Nkrumah University of Science and Technology and Ayeduase Community Clinic in Kumasi, Ghana between August 2014 and May 2015.

Methodology: The processing and heat treatment used were varied (fermentation (24 h) and non-fermentation; steam blanching (15 min) and non-steam blanching) to obtain Fermented Steam Blanched (FSB) blend, Non-Fermented Steam Blanched (NFSB) blend, Fermented Non-Steam Blanched (FNSB) blend and Non-Fermented Non-Steam Blanched (NFNSB) blend. Four cassava-soybean blends in a 65:35 ratio were processed. The products were formulated using 75% cassava-soybean blend, 20% sugar and 5% mango. Fifty (50) mothers assessed the attributes of the formulated blends using preference test with 5-point hedonic scale.

Results: Results showed that the flavour and taste of steam blanched blends were most preferred while non-steam blanched blends were most preferred in terms of smoothness. There was no significant difference between the acceptability of the blends in terms of colour at p = 0.05. Steam blanching significantly affected the sensory qualities and functional properties; FSB and NFSB were scored 2.02±0.73 and 2.05±0.85 while FNSB and NFNSB scored 2.19± 0.74 and 2.12±0.83 respectively in terms of preference of their sensory attributes. Steam blanched blends had higher bulk densities and swelling index as compared to non-steam blanched blends. Fermentation decreased the swelling power of the blends but not at a significant level because of the shorter duration (less than 48 h) Fermented Steam Blanched product scored the highest in terms of all the sensory attributes and had low bulk density (0.70±0.02) and swelling index (2.63± 0.13).

Conclusion: The study showed that Steam Blanching could be employed in developing an instant cassava-based complementary food capable of meeting the nutritional needs of children 9-11 months old.

Open Access Original Research Article

Power Spectrum and Data Clustering Analysis for Intraoperative EEG Signals

Beni R. Hermanto, Ahmad Faried, Agung B. Sutiono, Muhammad Z. Arifin, Richard Mengko, Tati L. E. Rajab

Current Journal of Applied Science and Technology, Page 1-8
DOI: 10.9734/BJAST/2016/30909

Intraoperative EEG is used for acquiring brain signal that probes or electrodes placed on brain organ directly. It is different from common EEG, which probes placed on scalp. In order to explore the characteristic of brain signal based on brain injuries case, data taken from ten subjects while applied intraoperative EEG. The signals acquire by placing eight channels on brain organ simultaneously with particular form of probes.

For comparing the brain signal among the subjects, power spectrum chosen as basic method. The power spectrum indicates the energy of signals, representing the brain activity.  Cross checking between powers spectrum and brain injuries case, data clustering applied using self-organizing maps.

Calculating the power spectrum of signals shows that brain stroke case has higher value than non-stroke case. This higher value exists for most of channels. Using channels as dimension of data, self-organizing maps visualize that stroke case’s position are closed to each other on map. On map also, visualize the boundary between stroke and non-stroke case. Based on brain injuries happened among the subjects, stroke case has specific signals characteristic, which different from non-stroke significantly.

Open Access Original Research Article

Physical Activity and Ethnicity as Determinants for Depressive Symptoms

Dean Culpepper

Current Journal of Applied Science and Technology, Page 1-8
DOI: 10.9734/BJAST/2016/31694

Aims: Epidemiological research has shown that regular physical activity can help in the prevention of depression. Recent research has been unclear about the racial components of depression and knowing which population is at the greatest risk will help clinics, nurses, and teachers seek and promote interventions with the population. The purpose of this study is to explore the relationship of physical activity, gender, and ethnicity on depressive symptoms. 

Study Design: Survey sample.

Place and Duration of Study: Department of Health and Physical Education, Eastern New Mexico University, between March 2016 and April 2016.

Methodology: Eighty-seven individuals completed a non-experimental research study and data was collected on demographics, the Center for Epidemiological Studies on Depression (CES-D), and the Johnson Space Center/NASA Physical Activity Rating Scale (PAR).

Results: Regression analysis showed that physical activity and non-minority status significantly influenced depressive symptoms [CES-D = 17.702 - 2.242(PAR) – 5.487(Caucasian)]. 

Conclusion: Results of the analysis revealed that being a Caucasian decrease the chance of developing depressions, and a lack of habitual physical activity can increase an individual’s likely-hood of developing depressive symptoms. Access to mental health care must be improved for minorities to help improve these rates.

Open Access Original Research Article

Formation Damage Analysis Due to Filtrate Invasion in Deviated Wells: A Numerical Approach

Oluwatoyin O. Akinsete, Adebayo I. Raji, Julius U. Akpabio

Current Journal of Applied Science and Technology, Page 1-10
DOI: 10.9734/BJAST/2016/31189

During production, drilling, completion, stimulation and work-over operations, the formation is exposed to several types of fluids which have high tendencies to impair and impact gas and oil productivity by reducing pore throat size and relative permeability. Therefore, it is desirable to accurately characterize filtration process during these operations.

A mathematical model was developed describing the mechanism of formation damage in deviated wells. Rate of mud cake build up, cumulative filtrate volume and depth of invasion into the formation at different angles of inclination were determined. The model employed numerical approach rather than the conventional analytical method to solve the equations developed using the fully implicit discretization scheme.

The effect of filtration on the angle of deviation was determined and this should help in planning and allocation of drilling time in order to reduce formation damage.  Also the analysis shows the result of infiltration on cake thickness and filtrate volume at the early, middle and late time of permeation into the formation.

The model was validated with the previous analytical model. Results showed that the previous conventional analytical models developed overestimate the formation damage when compared to the numerical model.

Open Access Original Research Article

Modelling Leachate Pollution Index and Potential for Selected Municipal Solid Waste Dump Sites: A Case Study

Mamuyovwi Odia, Ify L. Nwaogazie, Eunice O. Nwachukwu, Gregory O. Avwiri

Current Journal of Applied Science and Technology, Page 1-16
DOI: 10.9734/BJAST/2016/31198

Unengineered and uncontrolled dump sites is a threat to human and the environment. Leachate infiltration from Municipal Solid Waste (MSW) posed great threats to surface and groundwater systems. Leachate samples were collected from Niger-Cat (NC), Don-Parkar (DP) and Orhuwhorun (ORH) dump sites for September, November and January by Random Sampling (RS) technique and concentration of selected leachate parameters were determined. Principal Component Regression (PCR) analysis was employed to model Leachate Pollution Index (LPI) and pollution potentials of leachate of NC, DP and ORH dump sites to ascertain the threats posed to surface and groundwater systems of the immediate environment of the dump sites. The modelled LPI values at NC were 16.492, 16.162 and 14.599, at DP modelled LPI values were 15.714, 15.119 and 18.883 while at ORH modelled LPI values were 12.379, 11.940 and 12.072 for September, November and January respectively. The LPI values were compared with the Indian LPI standard value (7.378) for the disposal of leachate. It was revealed that the LPI values were above the maximum permissible limit, which indicated that the leachate generated from these dump sites are of high pollution potentials. It therefore implied that NC, DP and ORH are threats to the immediate environments; local surface and groundwater systems may be at risk of contamination, if no measure is put in place to check these threats.

Open Access Original Research Article

Evaluation of the Effect of Terrain on Wind Speed Using Analytical Method

S. Olu Adesogan

Current Journal of Applied Science and Technology, Page 1-12
DOI: 10.9734/BJAST/2016/12077

The causal factor of roof blown-off is wind, most of the roof designers do not have enough information on the wind environment in which they work and as such do not take into consideration the effect of terrain on wind speed uphill. It is therefore reasonable to know the maximum wind speed forecast for any building at a specified locations. A Survey of roof blown-offs in South-western Nigeria comprising of Ekiti, Lagos, Ogun, Ondo, Osun and Oyo States was conducted between 2011 and 2013 to ascertain the influence of the various environmental conditions and roof properties on roof blown-off. This survey resulted in MODEL FORMULATION. Variations of wind speeds with respect to topographical location of the building were investigated in this paper. Relations between this variable was then drawn up using analytical method. In modeling the wind speed along the slope uphill, the general fluid equation and Peronian equations were both employed to show that there is a relationship between wind speed at the valley and wind speed at the crest of a hill. The model was validated using data from four different stations at Ibadan. The t values for the stations are 0.215, 0.533, 0.298, 0.517 respectively indicating that there are no significant difference in the use of the model and the actual wind measurement indicating that the model is good.

Open Access Original Research Article

A Design of an Automatic Web Page Classification System

Tarek M. Mahmoud, Doha Taha Nour El-Deen, Tarek Abd- El-Hafeez

Current Journal of Applied Science and Technology, Page 1-14
DOI: 10.9734/BJAST/2016/30376

Web Page Classification is one of the common problems of the today's Internet. In this paper, an automatic Web page classification system is introduced. The proposed system tries to increase the accuracy of a web page classification via combine the well-known Naïve Bayesian algorithm, Support Vector Machine and K-Nearest Neighbor. The experimental results shows that the performance of classifying web page by hybrid Naïve Bayesian classifier, Support Vector Machine and K-Nearest Neighbor algorithm is better than using Naïve Bayesian alone as always used to get the highest and fastest classifier or using K-Nearest Neighbor alone or using Support Vector Machine alone to reduce the false positive rate and get highest accuracy. The experimental results, applied on 10.000 web pages (30% for training process and 70% for testing process), showed a high efficiency with the less number of false positive rate (on average) 0%, the true positive rate (on average) 1%, F-measure (on average) 1% and overall accuracy rate (on average) 99.98%.

Open Access Original Research Article

T.R.P Mechanism to Secure E-learning Information that Shared with Cloud Storage

Khalid Muhammad Al-Khafaji, Meltem Eryilmaz

Current Journal of Applied Science and Technology, Page 1-10
DOI: 10.9734/BJAST/2016/30798

The aim of the study is establish and implement a safe mechanism is: Technique Relationship Protected (TRP), by using a privacy control with the Auditor on the information shared between two of the most important services offered by modern technology, namely the E-learning systems and service of cloud storage, as a matter of fact these technologies require relevant features of the databases made up of information that need safety. This study aims to shed light on the concept of ensuring privacy to protect information shared between the E-learning system and Cloud platform by proposing a mechanism to preserve the privacy of quite distinctive between these important technologies. It is worth mentioning that the study has a tendency to need to pick advantage of looping the signatures to verify the authenticity of the information required to review the validity the information shared encrypted. With our mechanism, entity location on each block of the joint information is unbroken figure of the year investigators, administrative body is able to check the efficiency of the safety of the common information, without retrieving the entire file.

The propose system, keep a privacy of auditing a mechanism for shared information about cloud keeping-safe. With AES an encryption algorithm for protecting the shared information by applying an encryption a mechanism on the information that is being uploaded from its owners. They have been certified by the E-learning system administrators and the application of a decrypt the encrypted information after users' requested, they trusted users has E-learning system after sponsorship by the owners of the information they need. We have to take advantage of ring autographs to build homomorphism authenticators so that a general verifier has the capacity to audit shared information integrity without retrieving the complete data or access to content. Addition to it cannot recognize who's the signer on files, this means that the power to administrator to reveal the identity of the signer. As well as the presence of additional functions of the work of the Auditor that contribute to the consolidation of this technique relationship protected TRP.

This is for the protect and the success of that relationship between the technical services which has become an urgent necessity in the modern technical world that contains a very massive amount of data and information those shared and transmitted daily between branches of our technological world.