Bilingual Publishing Group

Building Pattern Technique of an Indigenous Community – Does Its Appearances a Distinctive Representation? DOI:  https://doi.org/10.30564/jaeser.v4i3.3385 Abstract Bangladesh is enriched with beautiful traditional indigenous cultures. Different indigenous peoples with their distinctive existences also considerably create an enhance values and lifestyles to the socio-cultural sectors of Bangladesh [1]. Habitually, these indigenous communities have been comparable to live a large combined family to shear their lifestyles [2]. Presently the country has 45 indigenous communities who are living in different locations. All indigenous people within this country have their own style to build their settlements with special techniques to keep them safe and sound from all types of natural and environmental vulnerabilities and also enhance their knowledge of construction techniques and lifestyle. Rakhain is one of them with very small number of people are still living in different regions with...

Assessing the Impact of the Lead/Lag Times on the Project Duration Estimates in Highway Construction DOI:  https://doi.org/10.30564/jaeser.v4i3.3383 Abstract The literature mentions multiple factors that can affect the accuracy of estimating the project duration in highway construction, such as weather, location, and soil conditions. However, there are other factors that have not been explored, yet they can have significant impact on the accuracy of the project time estimate. Recently, TxDOT raised a concern regarding the importance of the proper estimating of the lead/lag times in project schedules. These lead/lag times are often determined based on the engineer’s experience. However, inaccurate estimates of the lead/lag time can result in unrealistic project durations. In order to investigate this claim, the study utilizes four time sensitivity measures (TSM), namely the Criticality Index (CI), Significance Index (SI), Cruciality Index (CRI), and the Schedule Sensitivity Index (S...

Battery Train Fire Risk on a Steel Warehouse Structure DOI:  https://doi.org/10.30564/jaeser.v4i3.3327 Abstract Lithium ion battery fire hazard has been well-documented in a variety of applications. Recently, battery train technology has been introduced as a clean energy concept for railway. In the case of heavy locomotives such as trains, the massive collection of battery stacks required to meet energy demands may pose a significant hazard. The objective of this paper is to review the risk evaluation processes for train fires and investigate the propagation of lithium ion battery fire to a neighboring steel warehouse structure at a rail repair shop through a case study. The methodology of the analyses conducted include a Monte Carlo-based dynamic modeling of fire propagation potentials, an expert-based fire impact analysis, and a finite element (FE) nonlinear fire analysis on the structural frame. The case study is presented as a demonstration of a holistic fire risk analysis for ...

Influence of Selected Curing Techniques on Compressive Strength of Concrete From Palm Kernel Shell Ash and Ordinary Portland Cement DOI:  https://doi.org/10.30564/jaeser.v4i3.3315 Abstract This paper discusses the findings of an experimental study on the effect of various curing procedures on the compressive strength of concrete produced by partially substituting portland cement with Palm Kernel Shell Ash (PKSA). Palm kernel shell ash was utilized in a 1:2:4 mix ratio as a partial substitute for ordinary Portland cement (OPC) at percentage levels of 0%, 10%, and 15%. River sand with particles passing a 4.75 mm BS sieve was used, as well as crushed aggregate with a maximum size of 20 mm, and palm kernel shell ash with particles passing a 212 μm sieve. The compressive strength of the test cubes (150 mm x 150 mm x 150 mm) was determined after 7, 28, and 56 days of curing. The results demonstrated that test cubes containing Palm kernel shell ash developed strength over a longer curing ...

Irregularities and Roughness DOI:  https://doi.org/10.30564/jaeser.v4i3.3312 Abstract The periodically repeated pavement irregularities and their effect on the dynamic behavior of a bridge are the subject of this paper, as well as a new point of view of how the surface roughness operates on vehicles. The authors observed that the models used so far accept that the wheels are always in contact with the roughness curve. But in reality the wheels only come in contact with the peaks of the roughness curve by applying impact forces. The theoretical formulation is based on a continuous approach that has been used in literature to analyze such bridge. The procedure is carried out by the modal superposition method, while the obtained equations are solved by using Duhamel’s integrals. Important conclusions for structural design purposes can be drawn through a variety of numerical examples. Keywords:  Irregularities, Roughness, Bridges Dynamics, Vehicle models

Influence of Waterside Buildings’ Layout on Wind Environment and the Relation with Design Based on a Case Study of the She Kou Residential District DOI:  https://doi.org/10.30564/jaeser.v4i3.3309 Abstract It is important to improve residential thermal comfort in the high dense cities, in which wind environment is crucial. Waterside buildings take an advantage of micro-hydrological-climate in summer that should be used to enhance residential thermal comfort especially in the subtropical region. In order to propose design approaches according to the outdoor thermal comfort of the waterside residential, a case study of Shenzhen She Kou residential district has been made. It focused on various factors that could have influence on wind environment for improving thermal comfort. Using wind velocity ratio (ΔRi) criterion, factors of building development volume, building direction and layout pattern, open space arrangement etc. have been broadly explored using FLUENT simulation. To plannin...

Impact of Polymer Coating on the Flexural Strength and Deflection Characteristics of Fiber-Reinforced Concrete Beams DOI:  https://doi.org/10.30564/jbms.v4i2.5304 Abstract Liquid polymers (LP) have become an important structural material used in the construction industry in the last decade. This paper investigates the viability of using commercially available LPs as a coating material to improve the flexural strength of fiber-modified concrete beams. The scope included preparing rectangular prism concrete beams with a concrete mixture including fly ash and fiber and coating them with four different liquid polymers at a uniform thickness following the curing process while one set of samples was maintained under the same conditions as a control group without coating. In addition, cylindrical samples were prepared to determine the compressive strength of the concrete mixture. Following the curing process in an unconfined open-air laboratory environment for another 28 days, concrete sa...

Thermal Analysis of Concrete Mixtures with Recycled EPS Aggregates DOI:  https://doi.org/10.30564/jbms.v4i2.5251 Abstract Reusing recycled waste materials in buildings is gaining more and moreattention for what it offers economic, environmental, and energy benefits;and many researchers are nowadays working on producing new sustainableconstruction materials incorporating recycled wastes. In this scope, thiswork uses an experimental approach aiming at understanding the effect ofincorporating Expanded Polystyrene (EPS) beads in concrete and proposingthermally improved concrete mixtures for the production of hollow blocksin Lebanese constructions by substituting fine aggregates with recycledproducts such as EPS in order to promote their insulating properties. Threedifferent diameters of EPS beads (2 mm ~ 3 mm, 3 mm ~ 4 mm and 4 mm ~5 mm) are studied with different volumetric ratios (20%, 40%, 60% and80%) in order to investigate the effect of EPS on the thermal properties ofconcrete. Th...

Heating, Ventilation and Air Conditioning Design for Commercial Complex Buildings: Theory and Method Based on Inverse Problem DOI:  https://doi.org/10.30564/jbms.v4i2.5167 Abstract Scientific and technological progress and innovation help the design industry, which plays an important role in sustainable development. It willimprove the operation efficiency of enterprises and explore a blue sea forenterprise. In essence, design should be the process of deriving the optimalscheme from different schemes or imaginary scenes. Based on this, thispaper proposes an overall optimization method for Heating, Ventilation andAir Conditioning (HVAC) design. Compared with the traditional designmethod, under certain constraints, it can obtain the optimal design schemethat maximizes the value of the designed product. This study provides newinverse problem ideas and methods for HVAC designers, and providessolutions for enhancing the value of HVAC design products. Keywords:  Science and technolog...

Effect Of Quartz Particle Size and Cement Replacement on Portland Limestone Cement properties DOI:  https://doi.org/10.30564/jbms.v4i2.5091 Abstract This research focuses on investigating the effect of quartz particle sizeand cement replacement on their physicomechnical properties. Portlandlimestone cement (PLC) was employed and replaced with quartz powder(QP) at various particle sizes (1.19 mm, 425 µm, 300 µm, 212 µm, <212µm) and cement replacement between 2.5 wt.% ~ 15 wt.% at interval of2.5 wt.% to study their impact on the cement properties. The PLC chemical composition revealed a relatively low lime and high silica contentcompared to the conventional cement. QP revealed a high silica, lime andsulphur contents compared to natural sand. A high consistence, elongatedsetting times and lower strengths and specific gravities were observed ascement was replaced with QP at a given particle size respectively. Theeffect of replacing cement with QP content between 2.5 wt.% and 15 wt.%...

Properties of Sawdust Concrete DOI:  https://doi.org/10.30564/jbms.v4i2.4818 Abstract This work examined the structural properties of concrete obtained bypartially replacing cement with sawdust ash. The sawdust ash which is apozzolan was obtained by burning sawdust which is a waste product fromprocessing of timber in an open air. The burnt ash was passed through a150 µm metric sieve to obtain the ash used. Physical and chemical analysiswere performed on the ash to verify its suitability as a partial substitute forcement in concrete. Chemical analysis was also carried out on the OrdinaryPortland Cement (OPC) sample. Concrete mixes were produced by replacing OPC with 0%, 5%, 10%, 20% and 30% of Sawdust Ash (SDA). Bothfresh and hardened properties of the concrete produced were investigated.The chemical investigation on the ash showed that it contained most ofthe basic compounds found in OPC making it suitable to serve as a partialsubstitute for OPC in concrete. Investigation on the co...

Importance of Instrumentation in Hydropower Projects DOI:  https://doi.org/10.30564/jgr.v3i2.3018 Abstract With the advancement of science and technology, humans endeavored to build massive structures, both on surface and sub –surface taking the advantage of physico-mechanical properties of the construction materials like concrete, steel, wood, rock, etc. Quality is the standard of something as measured against other things of a similar kind. The term itself is subjective until and unless quantified, cannot be controlled. Instrumentation plays a major role to quantify the quality of materials and check if the resources meet the requirements of the structural design. Several types of instruments are developed and used world-wide in different structures to monitor water pressure, seepage, movements, vibration, temperature, stress, strain and other significant parameters. The role of instrumentation specialist...

Mineralogical and Geochemical Assessment of Clay Properties of Edda, Afikpo Sub Basin Nigeria for Possible Use in the Ceramics Industry DOI:  https://doi.org/10.30564/jgr.v3i2.2964 Abstract Clay samples from selected part of Edda were analyzed to identify the clay mineral types present, their chemical and physical properties with a view to appraising their industrial suitability as ceramic materials. The mineralogical and geochemical analyses were done using the principles of X-Ray diffraction and X-ray fluorescence respectively. A total of seven clay samples were used for the study, other tests such as plasticity, bulk density, shrinkage, loss on ignition (LOI) and water absorption capacity was carried out to determine the amount of water absorbed under specified conditions. The basic industrial properties assessment showed that more than 70% of the clays are fine-grained. The clays exhibited low to moderate...

Comparison of U-spatial Statistics Method with Classical Statistics Results in the Determination of Geochemical Anomalies of Epithermal Gold in Khoshnameh Area, Hashtjin, Iran DOI:  https://doi.org/10.30564/jgr.v3i2.2935 Abstract In this study, methods based on the distribution model (with and without personal opinion) were used for the separation of anomalous zones, which include two different methods of U-spatial statistics and mean plus values of standard deviation ( ). The primary purpose is to compare the results of these methods with each other. To increase the accuracy of comparison, regional geochemical data were used where occurrences and mineralization zones of epithermal gold have been introduced. The study area is part of the Hashtjin geological map, which is structurally part of the folded and thrust belt and part of the Alborz Tertiary magmatic complex.Samples were taken from secondary lithogeochemical e...

Assessment of Geologic Controls of Flooding in Parts of OBIO/AKPOR L.G.A., Rivers State, Nigeria DOI:  https://doi.org/10.30564/jgr.v3i2.2902 Abstract Flooding of Municipal areas is a frequent environmental occurrence in Rivers State that occurs when rainfall runoff meets land surfaces with low water absorbing capacity or when it overwhelms drainage channels. In order to assess the flood situation in the study area, an integrated method which involves field-measurement, geographic information system (GIS),laboratory analysis of soil samples and topographic studies were employed.Digital elevation model of the study area reveals that the flooded areas are situated in areas with elevations lower than its surrounding, thereby acting as a natural basin to retain flood waters after rainfall.Four holes were drilled to depth of 3 m to obtain soil samples at 1 m sampling interval, from which laboratory analysis was carried out to d...

Geochemical Classification and Geotectonic Setting of Granitic Gneisses from Southeastern Margin of Western Nigeria Basement DOI:  https://doi.org/10.30564/jgr.v3i2.2831 Abstract Chemical whole-rock major oxides and some trace element analyses were done on granitic-gneiss rocks from Dagbala-Atte District, located on the southeastern margin of western Nigeria Basement Complex. This was meant to classify the rocks and to understand the tectonic setting in order to evaluate their crustal evolution. The chemical analyses were done using inductively-coupled plasma mass spectrometer. From the results obtained, these rocks classified into calc-alkaline to shoshonite series with metaluminous to peraluminous varieties. They are I-type granitoids of feroan composition. The granitic gneisses formed from metamorphism of granite and granodiorite. Tectonically, most of the rock samples plotted in the field of island arc, continental arc and continental-collisional granitoids,which indicated that...

SGT: Session-based Recommendation with GRU and Transformer DOI:  https://doi.org/10.30564/jcsr.v5i2.5610 Received: 30 March 2023 | Revised: 5 April 2023 | Accepted: 11 April 2023 | Published Online: 20 April 2023 Abstract Session-based recommendation aims to predict user preferences based on anonymous behavior sequences. Recent research on session-based recommendation systems has mainly focused on utilizing attention mechanisms on sequential patterns, which has achieved significant results. However, most existing studies only consider individual items in a session and do not extract information from continuous items, which can easily lead to the loss of information on item transition relationships. Therefore, this paper proposes a session-based recommendation algorithm (SGT) based on Gated Recurrent Unit (GRU) and Transformer, which captures user interests by learning continuous items in the current session and utilizes all item transitions on sessions in a more refined way. By com...

Inquiring Natural Language Processing Capabilities on Robotic Systems through Virtual Assistants: A Systemic Approach DOI:  https://doi.org/10.30564/jcsr.v5i2.5537 Received: 9 March 2023 | Revised: 4 April 2023 | Accepted: 7 April 2023 | Published Online: 18 April 2023 Abstract This paper attempts to approach the interface of a robot from the perspective of virtual assistants. Virtual assistants can also be characterized as the mind of a robot, since they manage communication and action with the rest of the world they exist in. Therefore, virtual assistants can also be described as the brain of a robot and they include a Natural Language Processing (NLP) module for conducting communication in their human-robot interface. This work is focused on inquiring and enhancing the capabilities of this module. The problem is that nothing much is revealed about the nature of the human-robot interface of commercial virtual assistants. Therefore, any new attempt of developing such a capabi...

Comparison of Websites Employing Search Engine Optimization and Live Data DOI:  https://doi.org/10.30564/jcsr.v5i2.5536 Received: 8 March 2023 | Revised: 7 April 2023 | Accepted: 10 April 2023 | Published Online: 17 April 2023 Abstract This study compares websites that take live data into account using search engine optimization (SEO). A series of steps called search engine optimization can help a website rank highly in search engine results. Static websites and dynamic websites are two different types of websites. Static websites must have the necessary expertise in programming compatible with SEO. Whereas in dynamic websites, one can utilize readily available plugins/modules. The fundamental issue of all website holders is the lower level of page rank, congestion, utilization, and exposure of the website on the search engine. Here, the authors have studied the live data of four websites as the real-time data would indicate how the SEO strategy may be applied to website page ...

Establishing the Forecasting Model with Time Series Data Based on Graph and Particle Swarm Optimization DOI:  https://doi.org/10.30564/jcsr.v5i1.5443 Received: 2 February 2023 | Revised: 24 March 2023 | Accepted: 27 March 2023 | Published Online: 13 April 2023 Abstract In recent years, a wide variety of fuzzy time series (FTS) forecasting models have been created and recommended to handle the complicated and ambiguous challenges relating to time series data from real-world sources. However, the accuracy of a model is problem-specific and varies across data sets. But a model’s precision varies between different data sets and depends on the situation at hand. Even though many models assert that they are better than statistics and a single machine learning-based model, increasing forecasting accuracy is still a challenging task. In the fuzzy time series models, the size of the intervals and the fuzzy relationship groups are thought to be crucial variables that affect the model’s forec...

Statistical Characteristics of the Temporal Spectrum of Scattered Radiation in the Equatorial Ionosphere DOI:  https://doi.org/10.30564/jees.v5i1.5442 Received: 2 February 2023 | Revised: 6 March 2023 | Accepted: 13 March 2023 | Published Online: 13 April 2023 Abstract On the basis of the solution of the space-time characteristic system by the method of geometric optics using symbolic calculations, analytical and numerical simulation of the propagation of the ordinary and extraordinary radio waves in the conducting equatorial ionospheric plasma was made considering the anisotropy of plasma irregularities and non-stationary nature of propagation medium. Broadening of the spectrum and the displacement of its maximum contain velocity of a turbulent plasma flow and parameters characterizing anisotropic plasmonic structures. Statistical moments of both radio waves do not depend on the absorption sign and are valid for both active and absorptive random media. Temporal pulsations and cond...

Deep Learning Methods Used in Remote Sensing Images: A Review DOI:  https://doi.org/10.30564/jees.v5i1.5232 Received: 3 November 2022 | Revised: 9 February 2023 | Accepted: 20 February 2023 | Published Online: 4 April 2023 Abstract Undeniably, Deep Learning (DL) has rapidly eroded traditional machine learning in Remote Sensing (RS) and geoscience domains with applications such as scene understanding, material identification, extreme weather detection, oil spill identification, among many others. Traditional machine learning algorithms are given less and less attention in the era of big data. Recently, a substantial amount of work aimed at developing image classification approaches based on the DL model’s success in computer vision. The number of relevant articles has nearly doubled every year since 2015. Advances in remote sensing technology, as well as the rapidly expanding volume of publicly available satellite imagery on a worldwide scale, have opened up the possibilities for a ...

Impact of River Water Quality on Public Health in Perspective of Asian Rivers: A Case Study of Buriganga River, Bangladesh DOI:  https://doi.org/10.30564/jees.v5i1.5132 Received: 10 October 2022 | Revised: 5 January 2023 | Accepted: 6 January 2023 | Published Online: 20 February 2023 Abstract Water pollution is one of the current global problems. So many countries are suffering from this problem specifically most South Asian and Southeast Asian countries, and Bangladesh is one of those countries that are suffering from water pollution. Furthermore, the city of Bangladesh, Dhaka is one of the most densely populated cities in the world and overpopulation is showing a negative impact on the water quality now. Most of the rivers are very polluted around Dhaka city because of anthropogenic causes. This study focused on Buriganga river pollution and its impact on public health. This study intended to find out the major cause of Buriganga river pollution and the health status of the commu...