2,459 research outputs found

    Performances of Various Back-propagation Learning Algorithms of Neural Network Using Matlab

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    There are plenty of back-propagation learning algorithms of artificial neural network. Performances of various back-propagation learning algorithms have been checked using few portions of Australian Rain Dataset. Polak-Ribiere conjugate gradient back-propagation and Levenberg-Marquardt back-propagation have showed good performance than others

    Polymer-Clay Nanocomposites for Corrosion Protection

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    Nanoclays have evoked a great deal of attention lately for the preparation of novel nanocomposite materials for several applications. This is attributed to their lamellar structures, which are distinguished by having high in-plane strength and stiffness, as well as a high aspect ratio. Nanocomposites have exhibited an advanced gas and water barrier properties compared to the pristine polymers. Such advancement plays a major role in enhancing the coating industry, specifically for corrosion protection. One main factor attributing to coating failure is its inability to maintain low water and oxygen permeability thought its service life. The penetration of these elements through the coating leads to corrosion initiation under the coating. The addition of clay to polymeric coatings has great potential to improve the corrosion protection performance of the coatings. This chapter will present the recent advancement in the preparation and utilization of clay nanocomposites as enhanced coatings for corrosion protection

    The Influence of Exogenous Hormone on the Flowering and Fruiting of Strawberry (Fragaria x ananassa Duch)

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    The influence the exogenous hormone on flowering and fruiting of strawberry was conducted at the Malaysian Agricultural Research and Development Institute (MARDI) station in Cameron Highlands. Factorial experiment with three replications was designed in randomized completed block design (RCBD) where two factors, cultivars and exogenous hormone were used. Two strawberry cultivars, Camarosa and Camaroga cvs., were grown under green house and treated with 0 and 50 ppm of auxin (IBA), gibberellins acid (GA3) or cytokinin (6-BA) either singly or in combination by foliage application. The results showed that, there are significant different between the mean of flowering parameter, percentage of fruit set and average of fruit weight among the two cultivars. The result also showed that the number of the flowers per plant was greatly increased by about 138% comparing with the control plants when treated with 50 ppm GA3. 6-BA and IBA shows an antagonized effect on the role of GA3 in producing the flowers. The percentage of fruits set had increased by about 97.24 % and 81.5 % after treated with IBA and GA3, respectively. Combined application of GA3+6BA had increased the fruit weight by 33.85% compared with the control plants. The result also indicated that these two cultivars of strawberry response differently to the exogenous hormones in the producing flowers and fruits. The first bud of the plant treated with IBA+6-BA formed to flower as compared with the plants treated with GA3. The result obtained from of the present study could be used to control the flowering and fruiting of strawberry. Keywords: Strawberry, exogenous hormone, flowering, fruiting

    Men Health Seeking Behaviour: A literature review

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    Gender equality between males and females is a Sustainable Development Goal (SDG) that the nation must address. However, compared to women, the health status of men lags. The objectives are to describe and summarize the factors influencing men's health-seeking behaviour in various health problems from published literature. Methods: The literature search was performed using online databases in Scopus, Web of Science and ScienceDirect. Findings: In a total of  22 studies that fulfilled the inclusion criteria, the factors identified were predisposing factors (socio-demographic, health belief), enabling factors (healthcare services and facilities, alternative medicine, social support), and need factors (perceived need). Keywords: Men; Health-seeking; Factors; Review eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v7i20.348

    Synthesis and Study of Silver Nanoparticles Using Iraqi and Indian Lawsonia inermis Plant and their Catalytic Performance in Degradation of Organic Pollutant

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    In this work, we depict the cheap, friendly environment, an unreported and easy methodology for the synthesis of silver nanoparticles using the extract of leaf concentrate of Lawsonia inermis as a green, reducing agent. Silver nanoparticles display exclusive physical characteristics, which have appealed serious research attention due to their essential uses. In present work, silver nanoparticles were synthesized for environment uses by means of a completely green biosynthetic process using Lawsonia inermis flowers extract (henna). The structure, as well as properties of silver nanoparticles, was investigated with UV-visible spectroscopic techniques, scanning electron microscopy (SEM), energy dispersive X-ray spectrometers (EDS) and zeta potential. The maximum peak absorption by using UV-visible spectroscopic analysis was found at 460and 495nm, which point to the production of silver nanoparticles. Usual slight particle diameter that is determined by SEM was found to (10-46nm). Furthermore, zeta potential investigation shown that silver nanoparticles have good stability. EDX analysis also displays the presentation of a silver element. The methylene The catalytic effectiveness using light (LED) with silver nanoparticles was additionally researched in catalytic degradation of methylene blue dye. blue dye degrades 16 - 24.8% within 40 min for Iraqi & Indian henna produced better catalytic activity because of smaller particle size of silver, which is less than (10 ) nm in Indian henn

    WARPAGE ANALYSIS VERIFICATION BETWEEN SIMULATION AND EXPERIMENTAL OF DUMBBELL PLASTIC PART IN THE INJECTION MOULDING PROCESS

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    Injection moulding is widely used to produce a variety of plastic parts. Its process involved various process parameters, which plays an important roles in influencing the quality and productivity of plastic parts. In this case, the application of Computer Aided Engineering (CAE) software is essential to enhance the quality of plastic parts in the injection moulding industry. This paper deals with the application of Moldflow Plastic Insight (MPI) intergrated with a statistical technique using Taguchi Method. The purpose of this application is to study the effect of process parameters on warpage deflection in dumbbell plastic part. Subsequently, the result of CAE simulation was validated with the aid of experimental data result. The Process parameters involved in this study were core temperature, cavity temperature, melt temperature and cooling time. Based on the simulation and experimental results, it was found that the most significant parameter affected warpage deflection is cavity temperature, followed by core temperature, melt temperature and cooling time. In addition, the results show that the minimum and maximum percentages of the differential of warpage deflection between the simulation and experiment are 4% and 10.89% respectively. Thus, this indicates that there is a good agreement between the simulation and the experimental data result

    The extent to which multiple intelligences are available among grade eleven in governate of North Albatinah in Sultanate of Oman and its relationship with some variables = مدى توافر الذكاءات المتعددة لدى طلبة الصف الحادي عشر بمحافظة شمال الباطنة في سلطنة عمان وعلاقتها ببعض المتغيرات

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    This quantitative study discusses the most available intelligence among eleventh grade students in North Al Batinah Governorate in the Sultanate of Oman. The problem is that the Career Guidance Center, which aims to help students in identifying their preferences and intelligence, uses the inclinations measures only, therefore, this study aims to identify the students' intelligence. The research adopted the descriptive and analytical method, a random sample consisted of (700) students was chosen. The study adopted (Shearer, 2004) Multiple Intelligence Scale, which consists of (119) phrases distributed in eight sub-scales: musical, physical, motor, logical, mathematical, spatial, verbal, linguistic, social, subjective and natural. The data were analyzed according to the descriptive analysis, to calculate the frequencies and percentages to determine the most available intelligence, the Kay square to find out the significance of the differences between the frequencies, and Spearman correlation coefficient for the extent of compatibility between the grades according to the variables of specialization and gender, and calculate the Pearson correlation coefficient. The findings revealed that: the most available intelligence among the members of the sample are: the subjective and social intelligence, while musical intelligence came in the last place. There are also statistically significant differences in logical mathematical intelligence in favor of males, and there are statistically significant differences in verbal linguistic intelligence in favor of females. There are positive and significant correlations between academic achievement and five intelligences: mathematical, spatial, verbal, social, and subjective logical. ******************************************************************************* تناقش هذه الدراسة الكمية أكثر الذكاءات توافراً لدى طلبة الصف الحادي عشر بمحافظة شمال الباطنة في سلطنة عمان. تكمن المشكلة أن مركز التوجيه المهني الذي يهدف إلى مساعدة الطلاب في التعرف على ميولهم وذكاءهم، لكنه يستخدم مقاييس الميول فقط، لذا فإن هذه الدراسة تهدف التعرف على الذكاء لدى الطلبة. اعتمد البحث المنهج الوصفي التحليلي، وتم اختيار عينة عشوائية تألفت عينة الدراسة من (700) طالبٍ وطالبة. اعتمدت الدراسة مقياس الذكاء المتعدد لـ (Shearer, 2004 ) المكون من (119) عبارة موزعة في ثمانية مقاييس فرعية هي: الموسيقي، والجسمي الحركي، والمنطقي الرياضي، والمكاني، واللفظي اللغوي، والاجتماعي، والذاتي، والطبيعي. تم تحليل البيانات حسب التحليل الوصفي، لحساب التكرارات والنسب المئوية لتحديد أكثر الذكاءات توافراً، وحساب مربع كاي لمعرفة دلالة الفروق بين التكرارات، وحساب معامل ارتباط سبيرمان لمدى التوافق بين الرتب تبعا لمتغيري التخصص والنوع، وحساب معامل ارتباط بيرسون. بينت النتائج أن أكثر الذكاءات توافراً بين أفراد العينة هما: الذكاءان الذاتي والاجتماعي، بينما جاء الذكاء الموسيقي في المرتبة الأخيرة. كما أنه توجد فروق ذات دلالة إحصائية في الذكاء المنطقي الرياضي لصالح الذكور، كما توجد فروق ذات دلالة إحصائية في الذكاء اللغوي اللفظي لصالح الإناث. ووجود فروق ذات دلالة إحصائية في الذكاء اللغوي اللفظي تعزى لمتغير التخصص لصالح تخصص العلوم الإنسانية، وتوجد فروق ذات دلالة إحصائية في الذكاء الطبيعي تعزى لمتغير التخصص لصالح العلوم الطبيعية. وجود ارتباطات موجبة ودالة بين التحصيل الدراسي وخمسة ذكاءات هي: المنطقي الرياضي، والمكاني، واللغوي اللفظي، والاجتماعي، والذاتي

    Indicators for socio-religious harmony index (SRHI) instrument for Malaysia: findings of FDM expert panel

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    This study contributes to an understanding of the Malaysian socio-religious situation. Being a multi-religious country, Malaysia is not immune to contentious issues and incidents that challenge the relationship between different religious groups. Thus, it is crucial for the country to be conscious of its level of inter-religious relationship in order to maintain peaceful coexistence within the nation. This literature review is presented as a guideline to propose suitable indicators for the Socio-Religious Harmony Index (SRHI) instrument. This study uses the Design and Developmental Research (DDR) approach to conduct a Needs Analysis (Phase 1), development of the SRHI instrument (Phase 2) and evaluation of the index (Phase 3). This paper discusses Phase 2 of DDR, which is the development of the SRHI instrument. The method of this phase uses the Fuzzy Delphi Method (FDM) involving 14 expert panels invited to participate in the development of the instrument through a workshop. There were two rounds of FDM sessions, where the first round was to determine the indicators and the second round was to determine the sub-indicators. The end output of this paper is to present the findings of selected indicators for this index instrument as it was determined in FDM round one and two. The result shows that all 22 proposed indicators were accepted for inclusion in the SRHI instrument with the highest ranking indicators being mutual respect and the lowest ranking indicator being acknowledgement. The result of FDM round two shows that 53 sub-indicators were accepted out of 58 sub-indicators. Lastly, this paper presents the overall indicators and respective sub-indicators for the SRHI instrument
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