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1387 articles for ““SPA””
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Smart Parking Systems: for Narrow Spaces
Abstract: With the beginning of the era of “Narrow Spaces,” everyone with wheels is facing the problem of parking, may it be for a short duration, while shopping in markets, or even when it comes to parking in residences, etc. The solution to this can be attained, designed and described to user if and only if it is economic, user friendly and safer. To attain the solution we first must observe …
Published in Journal of Construction Engineering, Technology & Management · Vol. 4, Issue 3, 2014 · pp. 46–53 Read article
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Earth Tube Heat Exchanger for Space Heating and Cooling: a Review
Abstract: AbstractMaking heating and cooling policies for good climate regions societies should think the requirement of present cities as well as traditional agriculturalists. Successful heating and cooling modes must be economically reliable in both urban and rural areas setups as well as environmentally friendly and sustainable. One low energy option for conditioning space is to allow ambient air to pass through the earth pipe, which is long-buried tube inside the upper …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 9, Issue 2, 2019 · pp. 11–22 Read article
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A RELIABILITY STUDY ON A SYMMETRIC TWO-SPAN I - STEEL BEAM
Abstract: In this paper, a reliability study is carried out on a symmetric two-span I-Section steel beam using the First Order Reliability approach. The ultimate limit state of bending moment, shear stress and local buckling of web were the design criteria considered in the reliability index estimation. A Matlab code was developed based on the performance functions developed for the various failure modes and a Matlab optimizer, fmincon, was invoked in …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 1, 2019 · pp. 18–27 Read article
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Safety Analysis of A Three Span Reinforced Concrete Beam
Abstract: In this study, the safety analysis of a three- span reinforced concrete beam supporting a classroom block is carried out considering the failure of the beam in bending, shear and deflection in accordance with the provision of BS8110 (1987). The failure functions were developed based on bending, shear and deflection were solved to obtain the design points using a Matlab code. A sensitivity analysis was conducted on the design parameters …
Published in Journal of Structural Engineering and Management · Vol. 10, Issue 2, 2023 · pp. 31–46 Read article
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Study of Multiple Input Multiple Output Free Space Optical Terrestrial Link
Abstract: AbstractAtmospheric turbulence causes mitigation in the performance of the Free Space Optical Link (FSO) transmission. The performance changes due to scintillation. To reduce the effect of scintillation, we have employed a Multiple Input Multiple Output (MIMO) FSO link which gives better performance as compared to Single Input Single Output (SISO) FSO link. We have combined the detector output with different combining techniques i.e. Selection Combining (SC), Equal Gain Combining (EGC) …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 1, 2018 · pp. 25–29 Read article
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Free-Space Optical Communications: A Review
Abstract: AbstractIn last five decades Free-Space Optical communication (FSO) is becoming more and more interesting domain. In this review article we have explained, an overview of the tasks that a system designer considers while implementing an FSO system. We have also introduced the pros and cons along the path from the transmitter through which the medium is connected to the receiver.Keywords: Free-space optical communications, high altitude platforms, refraction turbulenceCite this ArticleHasting …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 2, 2015 · pp. 27–31 Read article
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A Case Study of Free Space Optic Performance Using Simulation Tools – OptSim
Abstract: ABSTRACTFree space optics (FSO) has received a great deal of attention lately both in the military and civilian information society due to its potentially high capacity, rapid deployment, portability and high security from deception and jamming. A proper understanding of optical signal propagation in different atmospheric conditions has become essential, and thus there arises the need to rationalize the effects of atmospheric channel on terrestrial FSO links. This paper studies …
Published in Trends in Opto-electro & Optical Communication · Vol. 1, Issue 1-3, 2011 · pp. 1–7 Read article
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Performance Analysis of a Subcarrier Multiplexed Qpsk Modulated Free Space Optical Mimo Transmission Link through Atmospheric Turbulence
Abstract: AbstractFree space optical (FSO) communication shows potential technology for communication. But the main weakness is atmospheric turbulence which causes major transmission destruction for an open air optical communication system. In this paper, the performance of free space optical (FSO) is analyzed using subcarrier multiplexed QPSK intensity modulated OFS link with optical intensity modulation and direct detection for a single input single output (SISO) system considering strong atmospheric turbulence. To overcome …
Published in Trends in Opto-electro & Optical Communication · Vol. 1, Issue 1-3, 2011 · pp. 32–40 Read article
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Simulation of Differential Space Time Block Coding
Abstract: AbstractIn such a coherent system, the underlying assumption is that the channel does not change during one frame of data. Thus, it can also be interpreted as the frame length is chosen such that the path gain change during one frame is negligible. This is basically the quasi-static fading assumption that we have used so far. There is a bandwidth penalty due to the number of transmitted pilot symbols. Of …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 1, 2016 · pp. 19–25 Read article
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Continuous Location-based Spatial Queries using a Proxy-based Approach
Abstract: AbstractThe intent of the paper is to obtain continuous location-based spatial queries using a proxy-based approach. Initially proxy creates estimated valid region for mobile clients. Using novel representation more effective EVRs of window queries are obtained. In this paper, index structures, EVR-tree and grid index are used for NN queries and window queries. To support for NN query answering and EVR updating, grid index is used. For performance evaluation several …
Published in Journal of Computer Technology & Applications · Vol. 6, Issue 1, 2015 · pp. 19–22 Read article
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The Use of Autologous Platelet-Rich Plasma in Treating Web Space Scar Contractures in Pediatric Burn Patients
Abstract: Burn injuries are prevalent among children, with scald injuries emerging as the predominant type among those under the age of five, constituting more than 65% of cases. Despite receiving appropriate initial treatment and compressive therapy, deep burns often result in contractures, with web space and hand contractures being the most frequent and functionally limiting.To address these challenges in burn management, Autologous Platelet Rich Plasma (APRP) has emerged as a significant …
Published in Research and Reviews : Journal of Surgery · Vol. 13, Issue 1, 2024 · pp. 1–5 Read article
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Performance Evaluation of Adverse Atmospheric Effects on Free Space Optical Communication
Abstract: There is an increasing need for communication systems that can accommodate high bandwidth and quick data transfer rates in today's fast-paced technological environment. Free Space Optical (FSO) communication has become a very attractive technology to address these changing needs. FSO systems, which use license-free infrared beams, have a number of benefits, including strong bandwidth, immunity to interference, improved security, and small, light designs. FSO is used in many different applications, …
Published in International Journal of Solid State Innovations & Research · Vol. 2, Issue 1, 2024 · pp. 21–29 Read article
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Marine Spatial Planning: Implementation of Plans and Strategies in Perspective of Bangladesh
Abstract: Marine spatial planning (MSP) is an internationally recognized planning tool used in coastal countries to utilize information about a particular maritime zone, its resources, and its uses and to develop a comprehensive ocean management system. It is a pragmatic and integrated process to protect the environment when human operations are held at spatial and temporal levels and increase sustainability in marine resources' uses. After two victories with two neighboring countries, …
Published in Journal of Offshore Structure and Technology · Vol. 11, Issue 3, 2024 · pp. 24–31 Read article
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From Space to Sea: Leveraging Satellite Technology for Monitoring Marine Debris
Abstract: Marine trash endangers ecosystems, so efficient detection is critical. This article describes a novel strategy for improving detection accuracy by integrating YOLOv7 instance segmentation with attention processes. Three models are evaluated: lightweight coordinate attention, the convolutional block attention module (CBAM) for spatial-channel focus, and the bottle neck transformer, which relies on self-attention. On an annotated satellite image dataset, CBAM has the greatest F1 scores in box recognition (77%) and mask …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 14, Issue 1, 2025 · pp. 1–9 Read article
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Modular and Prefabricated Design: Shaping the Future of Interior Spaces
Abstract: This paper explores the emerging trend of modular and prefabricated design in the interior design industry, highlighting its potential to revolutionize the creation of residential and commercial spaces. The study examines the advantages of these approaches, including cost efficiency, sustainability, and design flexibility, while also addressing the challenges such as design constraints and regulatory hurdles. Through the analysis of contemporary projects and innovative case studies, the research demonstrates how modular …
Published in Research & Reviews : Journal of Statistics · Vol. 13, Issue 1, 2024 · pp. 12–19 Read article
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Expanding Hicks Contraction Theory, Multi-Valued Mappings in Generalized b-Menger Spaces
Abstract: This paper extends the Hicks contraction theory to multi-valued mappings within generalized b-Manger spaces, a class of metric-like structures that accommodate more flexible distance functions. By introducing new definitions, such as generalized admissibility conditions and weak compatibility in the multivalued sense, we provide a comprehensive analysis of how these contractions behave in broader topological and metric contexts. Our approach systematically generalizes classical contraction principles by relaxing conventional constraints, thereby broadening …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 12, Issue 1, 2025 · pp. 1–05 Read article
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Joint Estimation of CSI and IQ Imbalance, and Compensation of IQ Imbalance in Spatialy Multiplexed MIMO-OFDM Receivers
Abstract: This study presents a novel method for estimating Channel State Information (CSI) and IQ imbalance and compensating IQ imbalance in a spatially multiplexed MIMO OFDM receiver. Our approach integrates estimation of IQ imbalance with CSI estimation using an OFDM training frame, thus eliminating the need for additional pilot symbols for IQ imbalance estimation. This technique streamlines the process and avoids extra overhead. We conducted simulations on a 2×2 spatially multiplexed …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 11–17 Read article
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ArcGIS Applications in COVID-19 Spatial Epidemiology: A Comprehensive Systematic Review
Abstract: Addressing complicated community health concerns frequently necessitates the establishment of health practices. Professionals who study community health using information technology require a thorough framework. Health care professionals and authorities have had the ability to comprehend health-related geographical data and make timely judgments in different situations. In the field of epidemic disease prevention, including a viral spread model into a GIS is a popular issue. As a result, a GIS as …
Published in Journal of Remote Sensing & GIS · Vol. 16, Issue 2, 2025 · pp. 17–25 Read article
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A Comprehensive Study of Sensor and Camera Fusion for Real-Time Parking Space Detection
Abstract: Due to the rapid growth in urban vehicle density, there have been major problems in the effective management of parking space, which has caused congestion, more traveling time, wastage of fuel, and environmental pollution. Conventional parking systems are very ineffective, as they are based on manual surveillance and cannot provide drivers with much real-time information. To overcome these challenges, the present paper explores the design, development, and operation of a …
Published in Trends in Transport Engineering and Applications · Vol. 13, Issue 1, 2026 · pp. 1–16 Read article
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Physiographic, Climatic, and Hydrogeological Determinants of Urban Flooding in Bhopal: A Spatial Assessment
Abstract: Bhopal, capital city of Madhya Pradesh, is uniquely shaped by hilly terrain, lake systems, and complex hydrogeological characteristics, which historically supported efficient natural drainage. However, rapid urbanization, encroachment, and alterations in land use have increasingly disrupted these natural systems, amplifying the city’s susceptibility to urban flooding. The city’s physiography, defined by five major hills, undulating slopes, and a network of natural drainage channels, directs runoff toward low-lying zones that frequently …
Published in Journal of Water Resource Engineering and Management · Vol. 13, Issue 1, 2026 · pp. 25–32 Read article