bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Insecurity on Quality Tertiary Education in Nigeria
Authors: Nwakpa Paul
Published: December 2019

The study was conducted in Ebonyi State University, Abakaliki, to investigate the effect of insecurity on quality tertiary education in Nigeria. The purpose of the study was to investigate the effect of insecurity on quality of tertiary education and to evolve strategies to solve the problem the study was guided by four research questions. Descriptive survey research design was adopted. Five hundred respondents were used for the study. Questionnaire instrument was used to gather data for the study. Mean and standard were used to answer the research questions. The instrument was validated by 3 experts. The reliability index effects of the instrument was 0.78 the study found causes, of insecurity in tertiary educational institutions, and strategies to be employed. Finally, the study made some recommendations to include, full implementation of the suggested strategies.
The Influence of Rotational Speed on the Wall Thickness and Mechanical Characteristic of Rotomouldable Plastics
Authors: Faleh Nadhim Mejbil , Hani Fatima Masood
Published: December 2019

This study is interested in the main parameter of this technique that uses a cubic container with an internal dimension of 100 mm and a cylindrical container 100 mm in diameter. We implemented the work in the fifth stage: In the first stage, we designed and manufactured the multi-axial system. In the second stage, the specimens were moulded from polyester, PVC, and polyethylene at a rotational speed axis of 5â€“120 rpm. The results from this stage indicated that the optimal rotational speed of the steady quality in dimensions and properties of the parts are 85, 100 and 115 rpm. The third stage was concerned with the effect of the speed of rotation on the thickness of the wall. The rotational speed of the axes was changed, and the thickness of the moulded walls was measured. The laboratory measurements revealed that the maximum compression ratio with the change of speed is at the speed of 115 rpm. The fourth stage was concerned with the effect of the speed of rotation on the value of tensile strength. The rotational speed of the axes was changed, and the tensile strength of the mould was measured. The tests revealed an improvement in the tensile strength at the speed of 115 rpm compared with the other speeds. The fifth stage utilised a cylindrical mould, which was re-worked in the previous stages, to investigate the effect of the speed of rotation on the thickness of the wall and mechanical specifications. Based on the conducted experimental tests, the influence of the rotational speed, which characterized the moulding process, on selected geometrical features of the mould was studied and analysed theoretically and numerically. The results showed an increase of about 5% in the compression ratio with increased rotation speed within the range of 85 to 115 rpm. There was also an improvement of about 7% in the tensile strength with increased rotational speed from 85 to 115 rpm. These results are due to the increase in the centrifugal force on the wall of the mould during the process. Also, the study was characterized by the production of the composite of polyethylene reinforced by iron screen wire, with improvement in the mechanical properties by about 300% compared to the base material.Â
The Effect of Canned Products on Human Body
Authors: Kemi Olatinpo Morayo , Olubodun Ogundowole Thompson , Olabisi Famojuro Olusegun , Joshua Makinwa Olutobi , Victoria Babatunde-Ikare Oluyemisi , Taiwo Adebayo Mary , Olawale Jimoh Babatunde
Published: December 2019

The use of canned products has become one of the defining characteristics of modern life. Canning is a method of preserving food by first sealing it in air-tight jars, cans or pouches, and then heating it to a temperature that destroys contaminating microorganisms that can either be of health or spoilage concern because of the danger posed by several spore-forming thermo-resistant microorganisms, such as Clostridium botulinum (the causative agent of botulism). Bisphenol A (BPA) is constantly discharged at trace levels in food packed in metal cans with PVC lining. BPA is a known endocrine or hormone disruptor and is implicated in diseases ranging from infertility, obesity, breast and prostate cancer, to diabetics, thyroid malfunction and attention deficit syndrome. This represents a cause for concern because of potential effects of Bisphenol A to human health. This research presents the report on the effect of BPA on human and possible way to reduce it.
Incidence and Antibiotic Resistance pattern of Bacteria associated with Wound infection in some Hospitals in Lagos, Nigeria.
Authors: Moro D. D. , Bello H. O. , Akano S. O.
Published: December 2019

A total of 202 wound samples consisting of surgical, burn and accident/cut, collected randomly from patients in some hospitals in Lagos were examined using standard microbiological techniques. Wound infections were more prevalent in children and adolescent (0-20 years) with 96(48%) as against adults (21-40) with 64(32%) which declines from age 41-60 and above. A high incidence of bacterial isolates in wound was observed which were either pathogens or opportunistic pathogens. Pseudomonas aeruginosa, was the most frequently isolated bacterium with 128(40%), Enterobacter sp., 60(19%), Proteus mirabilis56(18%), Escherichia coli, 20(6%) and Staphylococcus aureus, 16(5%). Accident/cut wounds constituted 52%, burn wounds, 32%, while surgical wounds accounted for only 16%. Antibiotic susceptibility studies with the disc diffusion technique on the bacterial isolates showed that most bacteria tested were resistant to amoxicillin, cotrimoxazole, nalidixic acid, augmentin, tetracycline and nitrofurantoin. However, in-vitro efficacy was shown by gentamicin and ofloxacin. Wounds independent of infection site led tohospitalization for mostly 1-2 days (72%) while very few were hospitalized for over 5 days Â (10%).Cleanliness and good personal hygiene should be taken seriously and enlightenment of the general public on the consequences of wound infection by our health care delivery system is strongly advocated.
Crack Growth Direction in Mixed Mode Loading: A Strain Energy Density Approach
Authors: Enab Tawakol Ahmed , Taha Hasnaa W. , Shabara Mohamed A. N. , Galal Ahmed M.
Published: December 2019

The crack growth in metallic materials using fast and reliable simulations of 2-D and linear elastic finite element models is investigated. The effect of the stress intensity factor in mode I and II (KI, KII) on the fracture behavior of stainless steel and the associated strain energy density factor in mixed mode crack propagation were studied numerically to determine crack propagation angle Î¸ in linear elastic fracture investigation. In order to implement the determination of the crack propagation direction using the strain energy density criterion S, the numerical finite element program ANSYS was used. ANSYS APDL macros were developed to generate the geometry, material properties, boundary conditions and mesh size of the model for the conducted analyses. To demonstrate the capability of crack propagation trajectories using the proposed method under mixed mode situation, an edge crack specimen was considered with initial crack having the same length but at different inclination angles under a uniaxial tension load. Results obtained from the developed models had a good agreement (average deviation of 4.63%) with the results available in the literatures.
An Identity based Multi-receiver Generalized Signcryption Scheme
Authors: Singh Tej , Ali Rashid
Published: December 2019

Generalized signcryption can adaptively work as a signcryption scheme, a signature scheme or an encryption scheme jointly with only one algorithm. It is very suitable for the storage constrained environments, like smart card, the embedded system and wireless sensor networks. In this paper, we proposed an identity based multi â€“receiver generalized signcryption. We also prove the security of the proposed scheme in the simplified modal under the q-DHIP and q-BDHIP.
Development of a Dust Measurement System
Authors: Ewetumo T. , Oke A. O. , Ehiabhili J. C.
Published: December 2019

Dust particle are particulate matter that can become suspended in the atmosphere and deposited. Dust is present in the atmosphere has significant effect climate, health of human, and strong influence on the solar energy during dry season. The dust monitoring device developed consists of sharp dust sensor module that has capacity of measuring particle size about PM2.5 and above, microcontroller (arduino mega 2560), micro secure data (MicroSD) shield card, with intelligent liquid crystal display unit (LCD) and all are link together to form the complete unit. The dust measuring system compare with available dust device has the correlation of 0.999980 and maximum value of 0.541 mg/m3. Also the sensitivity, resolution and error are 5V/0.1 mg/m3, 0.001 mg/m3and Â±0.005% respectively, at 67% relative humidity and temperature of 32oC. The total power consumption of the dust monitoring system is 1.06 W.Â
Innovation Strategies for Improving the Quality of Studentsâ€™ Educational Research Project in the Ph.D. Programme of Ebonyi State University, Abakaliki
Authors: Nwakpa Paul
Published: December 2019

This study investigated innovative strategies for improving the quality of studentsâ€™ research projects in the Ph.D programme of Ebonyi State University, Abakaliki, Nigeria. To achieve this purpose, two research questions and one null hypothesis guided the study. The population for the study consisted of twenty (20) professors and one hundred and thirty (130) senior lecturers, totaling one hundred and fifty (150) respondents who teach Ph.D students all of the faculty of education, Ebonyi State University. The sampling technique adopted for this study was the total census technique due to the smallness and manageability of the population. Questionnaire titled â€œInnovative Strategies for Improving Studentsâ€™ Research Dissertation Questionnaireâ€ (ISISRDQ) was used to collect data from the respondents. The instrument was validated by three experts in measurement and evaluation of the department of science education of Ebonyi state University. Re-reliability of the instrument was tested using cronbach Alpha statistic and it yielded an index of 0.84 which was adjudged high enough for measuring the consistency of the items. The method of data collection was done by the researcher alone by going to the individual respondentâ€™s office for distributing and collecting the copies of the questionnaire, and this exercise lasted for two weeks. The method of data analysis includes mean, standard deviation and t-test. The results of the study revealed some innovative strategies to be adopted and used to improve studentsâ€™ research projects. Based on the findings, it was recommended that lecturers in the Universities should ensure that studentsâ€™ research projects are organized in accordance with the suggested innovative strategies.Key Words: Innovative, strategies, improve, quality, students, educational research programme, university.
Smoking Habit Effect on Total Cholesterol Levels
Authors: Prasetyorini Tri , Permata Putu Puja Kasih
Published: December 2019

Introduction and Aims: Smoking habits have an adverse effect on fat profiles, including high concentrations of LDL cholesterol. Nicotine in cigarettes is one of the substances that interfere with cholesterol metabolism in the body. This study aims to find out more about the relationship of smoking habit to total cholesterol levels.Â Methods: This research is a survey research using cross-sectional study design. The respondents in this study are active smokerresidents of Bintara XIV. The data collected in this research is using Biosensor method.Analysis of the data performed is univariate and bivariate analysis by using the ANOVA test SPSS for Windows 17.Â Result: The result of the ANOVA analysis is p = 0.000 (p < 0.05) which means there is influence of two variables analyzed and there is a relationship between them.Â Conclusions: There is influence between smoking habits of respondent with a total cholesterol level of respondent. Respondents with high smoking intensity tend to have high total cholesterol levels. The results of this study are expected to be used as a base for further research todetermine the effect of smoking intensity oneach lipid profile on laboratory examination.Â
On the Problem of Tangency of Ellipse Curve
Authors: Pakapongpun Apisit , Srisuk Saowaros
Published: December 2019

Given a ellipse curve and a point in the exterior region, there are always two tangents from the given point to the curve.
The Influence of Health Education How to Care for Teeth and Mouths on Knowledge, Attitude and Skills and the Status of Dental and Oral Health in Elementary School
Authors: Setiawati Santun , Siahaan Nurdiana , Supartini Yupi , Sianturi Yenny
Published: December 2019

One health problem that often occurs in school-age children is dental and oral health problems. One of the efforts made by increasing the knowledge of children and parents about dental and oral health. This study aims to determine the effect of health education on how to care for teeth and mouth on knowledge, attitudes and skills as well as dental and oral health status in elementary school children. This study uses a quasi-experimental design. Respondents of the study amounted to 64 children (intervention group 32 children and control group 32 children). In the intervention group health education was carried out on how to care for teeth and mouth and observed ways to care for teeth and mouth at home for 1 month by involving parents and being monitored by the teacher, while the control group was not carried out. Test the analysis using bivariate univariate (frequency distribution) analysis (t test and correlation test) and multivariate (multiple linear regression). The results showed that there was an effect of health education on how to care for teeth and mouth on the knowledge, attitudes and skills and dental and oral health status of elementary school children (p value = 0.000-0.002 and Î± = 0.0050). Conclusion: health education about how to care for teeth and mouth is an effort to improve dental and oral health status in children.
The Effect Progressive Muscle Relaxation And Deepth Breathing On Ansietas Level Caregiver Of Paliative Care Patients
Authors: Haryati Omi , Gunawan Nur Halimah , Siahaan Nurdiana
Published: December 2019

Emotional mental disorders experienced by caregiver due to treating palliative patients which can threaten the integrity of both internal and external self. The study was conducted to determine the effect of progressive relaxation and deep breathing to reduce anxiety in caregiver when treating palliative patients in hospitals. The design of this study is "experimental quasi pre-post test with control group". In the intervention group given progressive relaxation therapy and deep breathing. The number of samples of this study was 40 respondents in each group (intervention and control). The instrument in this study uses the HARS (Hamilton Anxiety Rating Scale). Data analysis includes univariate analysis carried out to describe the characteristics of each variable measured in the study. Bivariate analysis was carried out to identify the effect of progressive relaxation packages on reducing levels of caregiver anxiety in treating palliative patients. Homogeneity of the characteristics of respondents in two groups, that is variables of age, sex, education, occupation, marital status, duration of illness is done by Chi-Square test. From the results of the study there was no decrease in the response of physical anxiety (p = 0.493), cognitive (p = 0.223), attitude (p = 0.953) and psychological (p = 0.933) in the intervention group. As well in the control group (p> 0.05) except for the attitude element (p = 0.013), The results of this study concluded that there was no significant decrease in anxiety response after intervention in deep breath relaxation and progressive muscle relaxation in caregiver who treated palliative patients.
Mathematical Modeling of Diurnal Patterns of Turbulent Heat Fluxes using Modified Aerodynamic Resistance Method
Authors: Akinnubi R. T. , Oketayo O. O. , Akinwale B. F. , Ojo M. O. , Ikusika A.
Published: December 2019

The development of improved methods for estimating turbulent heat fluxes is important in effective monitoring of the surface energy balance for climate change prediction. However, different Â parameterized models carried out at the local site of Nigerian Micrometeorological site (NIMEX-1) did not consider the surface heat fluxes-aerodynamics resistance relationships, and these validated models cannot be incorporated into the Climate models because some of the input climate variables are not routinely available in some meteorological stations. This study therefore, aims at improving the diurnal patterns of surface heat fluxes estimates using radiometric surface temperature and aerodynamic surface-layer resistances. Hourly data of air temperature (Ta), soil temperature (Tsoil), global radiation (QL), surface temperature (Ts), wind speed (u), QH and QE were obtained from the NIMEX-1 at Ile-Ife (7.55 oN, 4.55 oE). The QH and QE were estimated using Aerodynamic Resistance Approach algorithm which was modified to reduce the large bias errors between the aerodynamic temperature and surface temperature above the ground level. The algorithms were validated and rated using the following error statistics: coefficient of determination (r2), Mean Bias Error (MBE) and Root Mean Square Error (RMSE). The RMSE and MBE for the modeled QE estimated using ARM and MAR reduced from 28.33Wm-2 to 14.33 Wm-2 and 36.93 to 10.74 Wm-2 respectively while for QH ,the RMSE and MBE reduced from 17.29 Wm-2 to 9.49 Wm-2 and 31.39 to 16.93 Wm-2 respectively. The r2 values ranged from 0.68 to 0.73 and 0.95 to 0.98 for QH and QE respectively. The MAR had the highest r2 and least error values.Â  Hence, the proposed modified Aerodynamic resistance models are estimated the diurnal and seasonal turbulent heat fluxes accurately for tropical regions.
Nutrition Improvement of Elementary Students with Intervention of Tilapia Fish Flour and Sardine Fish Flour Based Biscuits
Authors: Widodo Slamet , Sirajuddin Saifuddin
Published: December 2019

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Exploratory Study of the Idling Driving Effect on Gas Emission Levels in a Traffic Jam Environment:  Case Study of Jakarta Metropolitan Traffic on Gasoline Passenger Cars
Authors: Pratama Abdi , Tokai Akihiro , Nguyen Hoa Thi , Naoya Kojima
Published: December 2019

In this paper,Â we measured the potential avoidable emissions in Jakarta city, one of the busiest cities in the world for traffic. We analyzed its impact on the total emissions from passenger gasoline cars. We recorded each designated road to estimate the idling time during travelling and calculated the avoidable emissions of CO, NO, and HC gas from vehicles. We determined that more than 46.0% of the recorded lost travel distance occurred with an average speed <5 km/h.Â Expanding idling driving to <10 km added a +10.0% contribution to the avoidable emissions. The 46.0% portions contribute to the current emission levels. However, because of the limitations of the work in this field, the last portion is often neglected in past work. In 2040, CO, NO, and HC showed similar tendencies with an emission difference of more than 46.0% or 481.79 thousand tons for CO, 2,275 thousand tons for NO, and 20,472 thousand tons for HC. Idle driving contributes to the emissions in traffic jam conditions in Jakarta city.Â The increase of avoidable emissions is strongly supported by the high growth rate of vehicles by more than 9.0% every year, which is larger when compared to the annual road growth that only averages 0.01%. We have concluded that avoidable emissions during traffic jams needs to be urgently solved. Eliminating emissions during idling conditions using a technological approach or by conducting idle driving education are two potential ways to reduce avoidable emissions during traffic jams.Â­Â­Â­Â­
The Effect of Prolonged Time of Tablet Usage on Postural Alignment in Children
Authors: Ibrahim Marwa M. , Radwan Nadia L.
Published: December 2019

Background: Smart handheld devices are nowadays forming a great impact on peopleâ€™s health. The prolonged use of these devices is known to be associated with musculoskeletal disorders in the upper limb. The aim of this study: was to examine the effect of prolonged usage of tablets on postural alignment in children.Methods: 60 female children, Â their age ranged from 7 to 10 years, were participated in this study, and they were randomly divided equally into 2 groups according to the total interrupted time spent using the tablets, reported by their parents. Group (1) those who use tablets less than 3hours per day, and group (2) those who use tablets from 3 to 6 hours per day. Assessments and comparisons between the two groups were applied by using the bio photogrammetric postural analysis to measure the Craniovertebral angle (CVA), The Head tilt angle (HTA), Forward Shoulder Angle (FSA), Thoracic kyphotic angle (TKA), Lumbar lordotic angle (LLA) and Pelvic tilt angle (PTA).Results:The findings indicated significant differences between the examined groups regarding the CVA, HTA, FSA,TKA, while there were no significant differences could be recorded relative to LLA and PTA. Conclusion:Prolonged sitting posture for children who use tablets can produce postural alignment changes such as FHP, rounded shoulders and increased kyphosis with predicted other spinal changes at lumbar and pelvic regions and associated forward musculoskeletal disorders.Â
Analysis of Rainfall and Temperature Trends in Bahati Sub-County, Kenya
Authors: Koimbori Jackson K. , Shisanya Chris A. , Murimi Shadrack K. , Petterson Rickard
Published: December 2019

This study analyzed the climate variability trends in Bahati Sub-County, Kenya for the period 1985 to 2015.The climate parameters used included rainfall onset, rainfall cessations, seasonal rain, annual rainfall, annual mean temperature, maximum and minimum temperature. Data on rainfall and temperature was collected from Nakuru Meteorological Station. The strength and direction of the relationship between rainfall and temperature was determined using SPSS software version 23 (correlation analysis) and Microsoft Office Excel 2010 to generate frequency tables, pie charts, graphs and moving averages. The findings revealed that there is a significant, negative and strong relationship between annual rainfall trend and maximum temperature (r= -0.716, p = 0.000). However, the study findings also revealed that the relationship between annual rainfall and minimum temperature had an insignificant, weak and negative relationship (r= 0.151, p= 0.418).
Relationship between Teachersâ€™ Continuous Professional Development Practices and their Job Performance in Secondary Schools in Eobnyi State, Nigeria
Authors: Nwakpa Paul
Published: December 2019

The main purpose of this study was to determine the relationship between teachersâ€™ continuous professional development practices and their job performance. It was a co-relational study, and was carried out from the three education zones of the state. Population of the study was 4500 teachersâ€™ from the state public secondary schools. The sample for the study was 450 teachersâ€™ selected from the three education zones of the state representing 10% of the population. Researchers-developed instrument, titled: questionnaire on teachers continuous professional development practices and job performance (QTCPDJP) was used to elicit information from the respondents. The instrument was face-validated by three experts from the department of Educational Foundations of Ebonyi State University, Abakaliki. The reliability of the instrument was established through test retest procedure using twenty teachers in public secondary schools in Enugu State, and the reliability index of 0.87 was obtained using the pearson product moment correlation coefficient. The researcher administered the instrument directly on the respondents with the help of three research assistants. The study was guided by only one research question and one null hypothesis. Data collected were analyzed using pearson product moment correction coefficient. Findings of the study revealed that there is a moderate positive correlation between teachersâ€™ continuous professional development practices and their job performance in secondary schools in Ebonyi State. The study among others recommended that teachers should take interests in professional growth and development through regular workshops, seminars and conferences in order to increase their job performance.
The Effect of High Temperature Heating on Indentation Resistance of Cobalt Chromium Alloy Plates as Denture Labeling for Forensic Identification ( Research Report )
Authors: Prawesthi Endang , Gusfourni Rosita , Marsigit Didik
Published: December 2019

The labeled denture is important to identify people who have memory loss or identify ofÂ  bodies in mass disasters, mainly due to the fires. Denture labeling made of tinfoil or paper laminated, but this form can easily be damaged if exposed to high temperatures. Cobalt Chromium (CoCr)Â  Alloy metal is resistant to high temperatures which has melting point 1150Âº-1500ÂºC, so that possibility can be used as a tool in identification.Â  Purpose: To determineÂ  indentation resistanceÂ  ofÂ  CoCr alloy plates on heating with high temperatures and be expected the use of its can be alternatives as denture labeling for forensic identification. Methods:Â  Experimental Laboratory with sample form of plates made of CoCr metalÂ  cast and measuring 30X10X2 mm, withÂ  depth of indentation is 1.5 mm. The plates were heated with temperatures 400Âº, 800Âº,1050ÂºC andÂ  duration 5 and 15 minutes in the preheatingÂ  furnace machine. 42 samples were divided into 3 groups (temperature of heating) and each group was divided into 2 groups again (duration of heating). Results: The size of depth and width of indentation (mm) ofÂ  plate for all groups, there was no significant difference between before and after heating, except in groups heating to a temperature of 1050Â°C for 15 minutesÂ  (P<0.05). Conclusions: Heating with high temperature is not enough to make the plate damaged and deformed, so labeling indentationÂ  can still be read clearly. The use of CoCrÂ  plate can be alternatives as denture labeling.
Estimate the Slope Parameter in Replicated Linear Structural Relationship Model
Authors: Alshargawi Amel Saad , Hussin Abdul Ghapor , Abd Rauf Ummul Fahri binti
Published: December 2019

Replication of observation allows consistent estimation of slope parameter of a linear structural model when the ratio of variances is unknown or when some external information about parameters is not available. In this paper, we look at the way a linear structural relationship model work by replicating observations with two different estimation methods of slope parameter and different cases of existence of outliers. The maximum likelihood estimate (MLE) and a new nonparametric robust estimation method Â are used to estimate the slope parameter in replicated linear structural relationship model (RLSRM). The simulation studies and the application of real data are used to investigate the performance of the estimated parameters.Â
Chemopreventive Efficacy of Punica granatum and Silybum marianum Extracts on Chemically-induced Hepatocellular Carcinoma in Rats
Authors: Tag Hend Maarof , Bargougui Ahlem , Alshayyal Sara Gamal , Kamal Amany , Tantawy Hekmat M. , El-Naggar Mohamed Salah
Published: December 2019

Punica granatum (POM) and Silybum marianum (MT) receiving attention as potential potent anti-oxidant and anti-mutant agents. In this context, the present study was designed to highlight their effects either in vitro as well as in vivo model of induced Hepatocellular carcinoma (HCC). Human hepatoma (HepG2 cells) were treated with MT and POM to explore their antitumor activity then in vivo were carried out on thirty-six male albino rats divided into six groups (n=6). Two weeks after induction of HCC, rats were co-treated with either MT or POM ethanolic extract (500 mg/kg, orally) daily for 8 weeks. The results displayed marked reduction in the viability of HepG2 cells with IC50 equal to 48.4 and 8.6 Î¼g/mL of POM and MT treatment respectively. Considering, in vivo experiment HCC group displayed significant elevation liver function indices (p<0.05). It also elicited depletion of liver reduced glutathione (GSH), and increased content of liver malondialdehyde (MDA) compared to control group. HCC was proved after a significantly elevated alpha-fetoprotein (AFP) level (p<0.05). All of these measurements were diminished significantly after POM and MT treatments, except the GSH level that was increased significantly. Supplementation of pomegranate and milk thistle extracts had a protective effect against chemically induced HCC.Â
Simulation of Three-dimensional Vibrated Fluidized Bed Dryer Using Distinct Element Method
Authors: Wongsiriwan S. , Srinophakun Thongchai Rohitatisha , Laopreecha Pakon
Published: December 2019

The particle motion, temperature behavior, and drying rate of particle inside a vibrated fluidized bed dryer were numerically investigated in this work. In the simulation, the Distinct Element Method (DEM) based on the Newtonâ€™s second law of motion was used to solve the particle motion. The physical aspects of fluid motion and heat transfer were obtained by applying Computational Fluid Dynamics (CFD) technique. For the drying of particle, only the constant rate period was considered in order to save the computational time. Programming was developed in Standard-C language and using MATLAB to visualize the results. In the simulation, 2,000 particles with stiffness 800Â N m-1 were simulated in a rectangular bed. The developed model was validated with an experimental result of Gupta et al. [1]. The program was then used to study the effect of superficial gas velocity (U0), frequency of vibration (f) and amplitude of vibration (a) in fluidized bed dryer. At low velocities and no vibration of bed,Â  articles in the bed were not fluidized but smoothly circulated. Thus, the heat transfer occurred only near the orifice. When superficial gas velocity increased, the fluidization of the particles was observed. The fluidization and drying rate improved with increased in superficial velocity for both vibrated fluidized bed and stationary bed. With introducing of vibration, the fluidization behavior of the particle was improved. The particles in the bed were well mixed and also increased the drying rate. From the simulation results, increasing of frequency and amplitude could not significantly improve rate of drying.
Grain Growth Dominance on Complex Permittivity of MgTiO3
Authors: Abdul Halim D. N. F. , Abdullah M. S , Hassan J. , Hashim M. , Aziz R. S. , Husin R.
Published: December 2019

Uncovering the relationship between microstructural and dielectric properties is beneficial for designing new dielectric materials for technological purpose. Thus, this work attempts to understand the evolving relationship between complex permittivity and microstructural in magnesium titanate (MgTiO3) at 40 Hz to 1 MHz. Magnesium oxide and titanium dioxide were mechanically crushed using a high energy ball mill for 12 hours via the mechanical alloying method. Pellets were formed followed by a sintering process from 500 oC up to 1400 oC. The phase formations of the sintered samples showed a development in their crystalline structure and their phase was confirmed by X-ray diffraction patterns, yielding a completed phase of MgTiO3 formed at 800 oC. Observation by scanning electron microscopy revealed an improvement in grain growth as the sintering temperatures are elevated. The density proportionally increased with the sintering temperature. From the complex permittivity studies, the dielectric constant, Ô‘râ€™ showed a decreasing trend with increasing frequency and attained constant limitation value of Ô‘râ€™ at higher frequency at room temperature. Below 104 Hz, the relaxation belonged to the interfacial polarization while beyond 104 Hz, it is dominant by dipolar polarization. The frequency dependence of loss tangent, tan Î´ decreased with value almost zero at higher frequency for all sintering temperatures. A significant increasing trend was observed which correlated the polarization-crystallinity behaviors at 1 MHz from 500 oC up to 1400 oC. The improvement in microstructure properties with respect to the sintering temperature was observed which give rise to the dielectric permittivity at infinite frequency, Îµâˆžâ€™. It revealed the dependency of dipolar polarization on the grain sizes and the crystallinity of the sample.
Solving Security of Cyber-Physical Systems with Multi-Objective Optimization Algorithms
Authors: Hashemi Seyed Mahmood
Published: December 2019

Cyber-physical systems (CPS), as a significant set of the Internet of Things (IoT), play a key role in our life. CPS has a wide range of applications. Regardless of the benefits of CPS, they need a secure approach to communication. In this paper, an approach to CPS security is proposed. Usability of the proposed approach is the major characteristic of it because it employs a multi-objective model (MOM) of security. In this study, three algorithms were used to solve MOM (Multi-Objective Imperialist Competitive Algorithm, Multi-Objective Automata, Multi-Objective Bee Colony), because the evolutionary structure of the proposed algorithms causes the best adaptation on the network.
Pipeline Balance and Monitoring for the Integrated Flare System in Map Ta Phut Industrial Estate
Authors: Poowanchaikul Picha , Piromchart Taradol , Atchananonkul Nattawich , Sinlapacharoen Thanapluet , Srinophakun Thongchai Rohitatisha
Published: December 2019

This study aims to design flare pipeline network in Map Ta Phut Industrial Estate (MTP IE). This network is designed to transport waste gas from 6 companies in MTP IE to PTT LNG terminal for treatment. At typical operation case, there will be 12.46 tons/hr. of waste gas flow accumulated into the system. In an emergency case, this pipeline network is needed to handle the maximum load at 79.84 tons/hr. of waste gas, through the entire system. The difference of the mass flow rate needs the specific pipeline network design to minimize the back pressure to the system. The route of the network is selected by Google Earth to overview and to find the possible shortest way of waste gas transportation. The sizing of the pipeline system is then proposed. The flare pipeline network is designed using Aspen Flare System Analyzer program. The simulation result shows that the proposed flare pipeline network can handle all waste gas both in regular operation and in emergency cases. All plant back pressures are under the maximum allowable back pressure (MABP) limit, which means that the plant can be operated without any upset from other companies
Knowledge on Maternal-Fetal Transmission of HIV in Pregnant Women
Authors: Deswani Ulty Desmarnita , Krisanti Paula
Published: December 2019

HIV or Human Immunodeficiency Virus is a virus affecting immune system consisting of white blood cells and lymphocytes called â€œT-4 cellâ€ or â€œCD-4 cellâ€ which fights infection. The fetus may easily contract the disease from mother with HIV and inflamed placenta. The study aimed to identify knowledge on mother-to-child transmission of HIV in pregnant women with HIV. The study design was quantitative with descriptive phenomenology approach and analysis by Colaizzi method. The study involved 9 participants. This study identified 7 themes including: 1) knowledge about HIV, 2) treatment of pregnant mothers with HIV during, 3) sources that support prevention of HIV, 4) information sources, 5) barrier in prevention, 6) how to deal with barrier, and 7) impact of HIV on fetus. Participants demonstrated inadequate level of knowledge about HIV transmission to fetus based on the identified themes. These findings may be beneficial for further studies and in development of health service programs for pregnant women, especially pregnant women with HIV. Â Â
Investigating the Super Paramagnetic Limits of Ferromagnetic Nanowires
Authors: Ezeh C. V. , Ehiabhili J. C. , Allwood D. A.
Published: December 2019

Highly sensitive focused magneto optical Kerr effect magnetometer (MOKE) has been used to explore the nanoscale limit of state of the art electron beam lithography (EBL) patterned permalloy (NiFe) nanowires. The nanowires are 20 Âµm long arranged in 20 Âµm Ã— 20 Âµm arrays. Permalloy of different thicknesses, which includes 10, 8, 6, 4 and 3.5 nm were deposited on 5 different samples containing these arrays. Results from 10 nm thick permalloy nanowires shows superparamagnetic transition at 85 Â± 5 nm wire width. For 6 nm thick array, superparamagnetic transition occurs at 125 Â± 25 nm. We therefore show that with 10 nm thickness, instead of 6 nm thickness, more miniaturisation of nanowire width can be achieved before the onset of superparamagnetism. This may be seen as very efficient in achieving increased storage density in memory devices.
An Experimental Investigation on Segregation Process of Binary Materials Based on Various Vibration Conditions
Authors: Mahdi Bahaaulddin D. , Faleh Nadhim M.
Published: December 2019

The mixing and segregation process of binary steel-glass mixture within a vertically vibrated containerat different frequencies are investigated in this paper. The image processing techniques areemployed to track the convection flow of granular materials.Six different amounts of frequency (20, 25, 30, 35, 40, and50 Hz) for certain amplitudes are used to study the effects of miscellaneous vibration conditions on the velocity fields of moving beads.The results show that increasing frequency with constant amplitude has a positive effect on increasing the velocity movement of the beads in addition, the decreasing of amplitude at almost constant dimensionless vibrational acceleration cause the velocity movement of the beads to be increased.The granular bed was divided into three horizontal parts and a separate study was provided for each one.
Optimization of Processing Parameters of Red Gypsum-Based Brick Manufacturing using Response Surface Methodology
Authors: Sidek Mohd Amirul Hakim , Yunus Rosli M. , Khan Mohammad Al-Nizar Khan Ahmad , Islam Muhammad Remanul
Published: December 2019

The red gypsum (RG) is a waste, industrial by product, can be potentially used for brick manufacturing. In the current study, the manufacturing of bricks using RG, sand and cement was optimized using response surface methodology (RSM). The water/cement (w/c) ratio and sand replacement were varied for an optimum compressive strength and water absorption properties of the cement. From the analysis, the average compressive strength of conventional cement brick (CCB) tested was 10.9 MPa. Based on the optimum solution from the RSM analysis, possible cost prediction was estimated which can provide some valuable information to the manufacturer.Â Â
A Filed Study of Effect using the Internet on Iraqi Familyâ€™s Relationship in Khanaqin City by Using Linear Regression
Authors: Mijwil Maad M. , Khazaal Sarmad M.
Published: December 2019

The internet and especially social media are one of the most important means of modern communication among humanity. Undoubtedly, it has played an important role in influencing the cultures of many peoples. It has had positive and negative effects. The effect of this modern technology has extended to the family.Â  The Sociology defines a family is a group consisting of a man and a woman with whom there is a marital relationship. As a result, many problems have arisen, including all segments of society, including the important part of society and its main constituent, countryside families. In this paper, the main hypothesis was established to show whether there is a statistically significant effect on the Iraqi familyâ€™s relationship in Diyala governorate and specifically in Khanaqin city, by using the linear regression equation in SPSS, which shows the effect of the Internet as well as social media sites on them.
Application of Analytics in Machine Vision using Big Data
Authors: Elfiky Noha
Published: December 2019

The Bag-of-Words (BoW) approach has been successfully applied in the context of category-level image classification. To incorporate spatial image information in the BoW model, Spatial Pyramids (SPs) are used. However, spatial pyramids are rigid in nature and are based on pre-defined grid configurations. As a consequence, they often fail to coincide with the underlying spatial structure of images from different categories which may negatively affect the classification accuracy.The aim of the paper is to use the 3D scene geometry to steer the layout of spatial pyramids for category-level image classification (object recognition). The proposed approach provides an image representation by inferring the constituent geometrical parts of a scene. As a result, the image representation retains the descriptive spatial information to yield a structural description of the image. From large scale experiments on the Pascal VOC2007 and Caltech101, it can be derived that SPs which are obtained by the proposed Generic SPs outperforms the standard SPs.
Summary of Modelling Safety Factors of Slope Stability in A Tar-Sand Quarry: A Case Study
Authors: Oyebamiji Ajibola Rasidat , Afolayan Alao David , Bassagi Mopa , Tajudeen Olarewaju
Published: December 2019

This research studies the importance of slope stability during open-pit mining of tar sand within the Dahomey basin, Southwest Nigeria. It involved the geotechnical characterization of the layers of Laterites and Alluvium which it underlies. In addition, SLOPE/W software of the GeoStudio package was utilized for deducing and modeling the bench face angles which had higher safety factors, through the Morgenstern Price method of slices. It was discovered that the lateritic soil layer possessed higher values of unit weight, cohesion and internal frictional angle than those of the Alluvial Sand layer. Factors of safety were generated for bench face angles ranging from 10o to 90o at 1m, 4m and above 40m groundwater levels; over a 10m bench width and 6m bench height. However, for heavy equipment, a bench width of 20m and height of 6m were assumed. This resulted in factors of safety varying between 3.58 and 1.73 for bench face angles between 10o and 30o during higher precipitation (and water tables). Thus, this suggests that stable slopes predominate at bench face angles of 10o to 30o. This can be further enhanced when sufficient drainage systems are constructed.Â
Formation Temperature Distribution of the Turonian- Maastrichtian Fika Shale Formation from Wireline Logs, in Part of Borno Basin, Northeastern Nigeria
Authors: Ilozobhie Anthony John , Obi Dominic Akam
Published: December 2019

The distribution of Formation Temperature of the Fika Shale Formation within part of Borno basin from five wireline logs was investigated.Â  The area under studied covered about 20 by 40 kilometre square of the total land mass of the basin. The Fika shale sequence were identified at 865m to 1795m in Kinasar well, 640m to 1990m in Krumta, 980m to 1620m in Masu, 700m to 2710m in Tuma, 710m to 2220m in Wadi. The plot of the entire Formation Temperature of the study area reveals remarkable steep variations in temperature with increased range from 680C to 1280C starting from the southern eastern region to the north western region. This is possibly due to substantial temperature enhancing effects of the underlying basement complex. Interestingly, it was also observed that the minimal temperature variation occurred approximately 20C/ meter across the field and this also lays credence to the fact that the notable subsurface geothermal variation may be recent events initiated by the near- surface magmatic intrusive events which may have had adverse effects on the overlying sedimentary cover. Furthermore, it was deduced that the probability of hydrocarbon accumulation is better in the south eastern region than the north western region although the steep temperature variation of 20C/ meter within some part of the study area may perhaps reduce this possibility.
Dominant Risk Factors of Sexually Transmitted Infections (STI) for HIV at Ships Crew
Authors: Fajrunni'mah Rizana , Lestari Diah
Published: December 2019

Results of risk behavior surveys show that truck drivers, sailors and fishermen and other port workers include frequent workers moving the place or mobile (mobile population) is due to the nature of the work, and is a group that is prone to contracting HIV due to sexual behavior. Access to Sex Workers at the port is considered easier compared to other groups, because it can be obtained directly or indirectly through intermediaries. This study aims to determine the most dominant risk factors for sexually transmitted infections against HIV incidence in crew in the Tanjung Priok Port area. The study used a quantitative design, design cross sectional with 60 respondent. Primary data was collected through an anti-HIV questionnaire and examination.The results showed that the risk factors for STIs that were associated with HIV incidence were variables of sex with non-permanent partners, frequent partner changes, number of sex partners, and buying sex. There was no relationship between the frequency of sex, condom use, alcohol consumption and the incidence of HIV. The dominant factor is often changing partners with OR 32,173. This research is expected to be useful as a source of information and able to improve the quality of education and assistance provided by health workers to the community, especially ABK for the prevention of sexually transmitted infections.
The Relationship of Birth Weight Infant with Bacteriological Profile and Antibiotic Resistance of Neonatal Sepsis
Authors: Asysyifa Nisrina , Djajaningrat Husjain , Lestari Diah
Published: December 2019

Neonatal sepsis is a major issue on neonatal-care field. This incident occurs by many factors, one of the factor is infant with a low birth weight. Blood culture is used as the gold standard for diagnosis. The spectrum of bacteria which caused neonatal sepsis is constantly change and vary due to antibiotic resistance phenomenon. This study aimed to determine the relationship of birth weight infant with bacteriological profile and antibiotic resistance of neonatal sepsis in RSAB Harapan Kita Jakarta. This study used observational method with cross sectional design and purposive sampling method which is analyzed by chisquare test. Medical record data and blood culture and antibiotic resistance test from all subjects in Januari until December 2018 were reviewed. The sample in this research is neonatal sepsis patients who met inclusion criteria were 51 patients. From 51 (55,43%) subjects, there were 39 (76,47%) neonatal sepsis in low birth weight infant. Klebsiella pneumonia spp (41,17%) and Staphylococcus epidermidis (19,60%) were the predominant pathogens. Amikacin (62,74%), and meropenem (50,98%) were the most susceptible antibiotic towards bacteria. Maximum resistance among organisms was seen in cefotaxime (84,31%), ceftazidime (78,43%), and amoxicillin (70,58%).Â  The result of the analysis found there is a relationship between birth weight infant and bacteriological profile (p-value = 0,035), but there is no relationship between birth weight infant and antibiotic resistance of neonatal sepsis (p-value =0,092; 0,066; and 0,521). There is a relationship between birth weight infant and bacteriological profile , but there is no relationship between birth weight infant and antibiotic resistance of neonatal sepsis.