MATEC Web of Conferences

https://www.matec-conferences.org/

List of Papers (Total 7,301)

Numerical Analysis Of Viscous Wall Dampers On Steel Frame

The structure is designed to minimize component damaged, one of them is using a damping system. Viscous Wall Damper is one of the damping systems, using high viscosity liquids as dampers. The viscous wall damper is represented by an Exponential Maxwell Damper model. Much of the literature shows the ability of viscous wall damper by experimental studies, but few of them had...

Study on Singular Spectrum Analysis as a data-driven technique for damage diagnosis. Comparison between time and frequency domain.

Vibration-based Structural Health Monitoring methodologies have been developed in many different applications with the aim of damage diagnosis. Recently, purely data-driven methods have been gained popularity because these methods do not assume any linearity or model in their analysis. Data-driven methods use the measured vibration signals as data-input to extract features that...

Soil reinforcement with geosynthetics

The proportionality of existence of land with good bearing to erect any building or building is very small, to remedy this deficiency it is necessary to resort to techniques of reinforcement of the soils which can constitute a very important development. Among these methods of remediation, there is reinforcement by the geosynthetics which constitute an effective solution to these...

Effect of mechanical activation of fly ash added to Moroccan Portland cement

Nowadays, the cement industry is the largest emitter of CO2. In 2015, cement production accounts for roughly 8% of global CO2 emissions. In order to reduce this impact, cement plants are working on alternative solutions, for instance, producing cement by adding additives like fly ash known for reducing the emissions of CO2 and minimizing production costs. The thermal power...

Ecofriendly bricks elaborated from coal waste of Moroccan Jerrada Mining

Solid waste generated during mining is one of the major environmental problems associated with this industrial activity. The best solution to overcome the environmental impact of this waste is to find recycling facilities in mass-produced products that can absorb the large quantities of these available byproducts. The present study shows the feasibility of using the coal waste of...

Application areas of phosphogypsum in production of mineral binders and composites based on them: a review of research results

The increase of the consumption of gypsum products in construction industry with a limited amount of natural gypsum deposits requires alternative sources of gypsum-containing raw materials. In some countries which have fertilizers industry plants, the problem can be solved using industrial wastes, e.g. phosphorgypsum – a byproduct of fertilizers’ production. Kept in dumps over...

Atmospheric Weathering of Historic Monuments and Their Related Conservation Issues

Atmospheric environment affects the materials of historic monuments and their structure starting from the time of their construction. Daily and seasonal changes in temperature and humidity, wind, snow and rainfall, soluble salts carried by water, biological agents, pollutant gases and particulate matter are some of the agents in atmospheric environment that introduce weathering...

Perception of Teacher on Cooperative Learning

The participation of students in the process of learning is one of the keys to ensure effective learning outcomes either in terms of knowledge or skill. However, teacher-centred teaching methods which have been practiced in this country after so long avert students to fully engage in the learning process especially in a classroom. Various attempts have been made by the government...

Risky Riding Behaviour Among Malaysian Young Motorcyclists

The main objective of this study was to explore the relationship between riding attitude, sensation seeking, anger and riding confidence with risky riding behaviour among motorcyclist at University Malaysia Perlis (UniMAP). Partial Least Squares of Structural equation modelling (SEM) and Statistical Package Social Science (SPSS) are utilized to determine the direct effect of the...

Electrical Energy Harvesting from Cooker’s Wasted Heat with Using Conduction Cooling

In order meet the demand of electricity in current era, the need for new sources of energy even in very minimal amount, could be done with proper research and technology advancement in order to convert as much wasted energy as possible. Collecting and analyses cooker’s wasted heat as a main wasted energy source become the main interest for this research. This application can be...

Mechanical Characterization of Zirconia Ceramic Composite

In this day and age, zirconia ceramics are used widely in the medical field as biomaterials for the replacement of damaged body parts. This is because zirconia is one of the closest replacements for bone tissue. However, there were a few cases regarding the failure of zirconia ceramic hip transplants. To overcome this issue, composite materials are being studied as they are able...

Preliminary Study on Effect of Chemical Composition Alteration on Elastic Recovery and Stress Recovery of Nitrile Gloves

Nitrile gloves are widely used in the medical and automobile field due to its superiority in hypo-allergic component and chemical resistance over natural latex gloves. However, poor elastic recovery of nitrile glove to compressive force also creates an aesthetic issue for customers with high levels of wrinkling after removing from glove box. This paper demonstrates the...

Web-based audiovisual phonetic table program application as e-learning of pronunciation practice in undergraduate degree program

Verbal-based learning such as English pronunciation practice requires the existence of an effective e-learning because if it is directly given without any learning media, inaccuracies in pronunciation, spelling, repetition will usually occur in the spoken language. Therefore, this study aims to develop e-learning to be used in the Pronunciation Practice class, Indraprasta PGRI...

Pyrolysis of palm empty fruit bunch: Yields and analysis of bio-oil

The palm oil industry is currently growing rapidly and generating large amounts of biomass waste that is not utilized properly. Palm empty fruit bunch (PEFB), by product of palm oil industry is considered as a promising alternative and renewable energy source that can be converted to a liquid product by pyrolysis process. In this work, pyrolysis of PEFB was studied to produce bio...

Recognition and Identification by Timbre of a Living Creature's Voice Based on Trainable Neural Networks in Real-Time Mode and Their Implementation in the Intelligent System «Neurocyber»

The article considers physical basis for formation and propagation of sound and its psychophysical perception by living creatures. The authors suggest an algorithm of living creatures’ identification by the voice timbre and the algorithm’s practical realization by artificial neural networks, by initialization of a conversation by the robot in order to reduce ambiguity of...

Dynamic Study of Feed-Effluent Heat Exchanger Addition on Double Bed Configuration Ammonia Reactor System within Varied Quenching Ratio

Ammonia is one of the most important industrial commodity due to its wide function. Ammonia synthesis reaction is an exotermic reaction. Therefore, Feed-Effluent Heat Exchanger (FEHE) is added to increase thermal efficiency. However, FEHE could lead the process to experience hysteresis phenomenon due to interaction between equipments as one steady state T feed could result...

Synthesis of Green Diesel From Waste Cooking Oil Through Hydrodeoxygenation Technology With NiMo/γ-Al2O3 Catalysts

Hydrodeoxygenation (HDO) of waste cooking oil (WCO) and trapped grease over sulfide catalysts was examined to produce high quality transportation fuel from low-grade resources. The hydrodeoxygenation of waste cooking oils was carried out in a high pressure of 30 and 60 bar and high temperature of 300 – 400 °C in a batch reactor autoclave. NiMo/γ-Al2O3 catalyst was prepared and...

3D Numerical study on the effect of shaft eccentricity on the tribological performance of lubricated sliding contact

Recently, a growing interest is given to the wall slip and the artificial texturing for improving the performance of lubricated sliding contact. The use of wall slip, artificial texturing, and the combination of slip and texturing can be the effective approach to enhance the performance of the bearing. The present study examines the effect of shaft eccentricity ratio on the...

Design and fabrication of a twist fixture to measure torsional stiffness of a pick up chassis

Torsional stiffness is important parameter of chassis that affect the handling performance of chassis. Torsional stiffness can be determined using Finite Element Method (FEM) in early stage design of its. In order to validate the FEM result, experimental work needs to be done. The fixture has been design in simpler stucture, flexible for any kind of chassis and using a simple...

Comparison of ratio loaded and unloaded foot area of flat foot and healthy foot in younger adults

This study is aimed to investigate loaded and unloaded foot area ratio (RFA, ratio of foot area) as special tests for the basis of clinical examination of flat foot and healthy foot. Type of foot is determined by Cavanagh’s arch indexes (AI) which is the ratio between mid foot area to entire footprint area excluding the toes. Type of foot is called high arch when AI<0.21, normal...

Gaz Diffusion Layers from functional carbon materials for fuel cells used in energy installations

Gas Diffusion Layers (GDL) for fuel cells are two-dimensional carbon materials designed to obtain a smaller thickness, greater bending stiffness, lower residual deformation and lower compressibility compared to analogs. To produce it, functional carbon materials were used: activated carbon of own production, from vegetable raw materials, acetylene black and single-walled Tuball...

Evaluation of raw water quality in Wassit governorate by Canadian water quality index

In this work an attempt has been done to evaluate the raw water quality in Wassit Governorate by using Canadian Council of Ministers of Environment Water Quality Index (CCME WAI). Six stations along Tigris River were located and the field work was conducted during one year from October 2015 to September 2016 in collecting data. Twelve water parameters were used to evaluate the...

Shear strength enhancement of lightweight aggregate reinforced concrete deep beams by using CFRP strips

In this research, results of an experimental investigation on the shear strengthening of lightweight aggregate reinforced concrete deep beams are presented. A total of eight lightweight aggregate deep beams were cast and tested in the experimental work to study the effect of externally bonded CFRP strips in improving their structural behavior, one of them was unstrengthened to...

Comparison of ultimate strength results from ACI and Eurocode 4 for steel tubular columns filled with SCC

The Concrete Filled Steel Tubular (CFST) columns have several benefits in comparison to the ordinary steel or reinforced concrete ones. Therefore, they have become more commonly acknowledged in the structural applications. In this study, two design codes such as American Concrete Institute (ACI) and Eurocode 4 (EC4) were used for predicting the ultimate axial strength of CFST...

Impact of using two different sources of water quality for simulation of salt and moisture content in unsaturated zone

Monitoring water quality and moisture content throughout the root zone become essential for proper management and for reduction of undesirable and diverse effects caused by using different water quality. In the field level, poor management of using different quality water can cause a huge reduction on the vegetation production. Two field plots were selected in Al-Khalis region in...