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63 articles for “direct-expansion.”
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Experimental Analysis of Capillary Tube in a Vapor Compression Refrigeration System
Abstract: Abstract A capillary is an essential deice of a vapor compression refrigeration system. It is used to reduce the condenser pressure to evaporator pressure. The refrigerant is expanded enthalpically, the reduction in pressure also reduces corresponding saturation temperature. This paper presents the analysis of expansion device accounting for three different sizes of capillary tubes. The investigations are carried out for different length of capillaries measuring 3, 3.5 and 4 m …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 1, 2016 · pp. 32–34 Read article
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Innovative Approaches to Reducing Data Traffic in IoT Networks Using Deep Learning and Compressive Sensing
Abstract: The exponential growth of internet of things (IoT) devices has posed unprecedented challenges in managing the massive data generated by real-time monitoring, automation, and analytics. Existing network infrastructures lack scalability, bandwidth, and suffer from latency problems, further making data transmission less efficient. This study surveys innovative approaches using deep learning and compressive sensing to reduce IoT data traffic. Deep learning is able to upgrade data processing by means of very …
Published in International Journal of Satellite Remote Sensing · Vol. 2, Issue 2, 2024 · pp. 46–62 Read article
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Rooftop Garden: An Initiative of Sovanagar High School
Abstract: This paper examines the rooftop garden initiative at Sovanagar High School (HS), Malda, West Bengal, a project aimed at addressing a growing rural institution's environmental and educational needs. As the school's expansion reduced available green spaces, the administration sought an innovative solution that would restore greenery and serve as an educational resource. The rooftop garden integrates sustainable practices such as rainwater harvesting, vermicomposting, and the use of recycled materials, aligning …
Published in International Journal of Trends in Horticulture · Vol. 1, Issue 1, 2024 · pp. 10–17 Read article
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A Comparative Analysis of India's Two Leading Digital Learning Platforms: NPTEL and SWAYAM
Abstract: In recent years, India has witnessed a transformative shift in its educational landscape with the advent of digital learning platformsthe role of MOOCs is extremely important in this direction.. This revolution has been propelled by the increasing accessibility of the internet and a growing demand for flexible, inclusive, and technology-driven education. MOOC learning platforms have the potential to transform the educational landscape in India, making quality education more accessible, flexible, …
Published in International Journal of Atmosphere · Vol. 1, Issue 1, 2024 · pp. 26–31 Read article
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An Experimental Analysis on Enhancement of Electric Vehicle Safety using ADAS Technology and Forward Collision Avoidance with an Automatic Braking System
Abstract: The rapid expansion of the automobile sector in developing nations has intensified road safety concerns, particularly in congested urban environments where human error accounts for approximately 90% of all accidents. This paper presents and experimentally validates an integrated Advanced Driver Assistance System (ADAS) for electric vehicles comprising three complementary safety modules: a Forward Collision Avoidance System (FCAS) employing an HC-SR04 ultrasonic sensor interfaced with an Arduino Uno R3 to detect …
Published in Journal of Automobile Engineering and Applications · Vol. 13, Issue 2, 2026 · pp. 20–30 Read article
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What Every Person Must Know About the Preliminary of String Theories to Evolve All Super Clusters, Galaxies, Stars, Planets, Planetesimals in the Universe
Abstract: The basic things of string theory say that we live in an accelerating and ever expanding universe today. String theory also supports the inflation theory of the Big Bang, where a period of rapid expansion happened in the history of the early Universe. Most of the theories in string theory are focused on understanding a theory of broken Supersymmetry. Only after following conditions are met is destroyed would De-Sitter space …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 11, Issue 2, 2022 · pp. 7–21 Read article
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Study on Land Use/Land Cover Change Dynamics through Remote Sensing and GIS – A Case Study of Kamrup District, North East India
Abstract: The study describes the land use and land cover dynamics in Kamrup district of Assam from 1991 to 2011 using remote sensing and Geographical Information System (GIS). Satellite remote sensing and GIS acts as an effective approach for analyzing the direction, rate and spatial pattern of land use dynamics. Landsat-TM and ETM+ for the period 1991, 2001 and 2011 were used to prepare the land use/land cover (LULC) map for …
Published in Journal of Remote Sensing & GIS · Vol. 5, Issue 1, 2014 · pp. 55–62 Read article
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Reinforcement Learning for Adaptive Sensing with Shape Memory Polymer-Based IoT Nodes
Abstract: The rapid expansion of intelligent sensing in the Internet of Things (IoT) has revealed the pressing need for materials and algorithms capable of self-adaptation in volatile environments. Conventional polymer-based sensors and static control strategies often fail to capture nonlinear thermo-mechanical dynamics, leaving them unsuitable for unpredictable operating conditions. Although prior studies have improved polymer composites or introduced algorithmic optimization independently, few attempts have coupled the adaptability of smart materials with …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 370–391 Read article
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Landscape Classification of Sariska National Park (India) and its Environments using Geospatial Technology
Abstract: The relationship between land use/land cover (LULC) changes and land degradation over a period of 20 years (1989–2009) at Sariska National Park (India), and its environment was investigated using remotely sensed and ancillary data. The study analyzed the magnitude and direction of temporal LULC changes for two consecutive periods; 1989–2009. The temporal change patterns of LULC were analyzed through interpretation of LANDSAT imagery. Final land cover maps produced under four …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 1, 2018 · pp. 5–14 Read article
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Impact of Climate Change on Economy of Nepal with Special Edges on Tourism Industry: Threats to Development and Stability
Abstract: Nepal is rich in biodiversity with Himalayan ecosystems and natural resources. Nepal's natural resources are a valuable and cultural asset for local communities, as well as supporting many of the country's industries. Safety is an important part of nature tourism and can attract or repel tourists. Climatic factors include temperature, precipitation, clouds, air, wind, and humidity. A key component of the industry's expansion is making traveler access safe and simple. …
Published in International Journal of Climate Conditions · Vol. 1, Issue 2, 2024 · pp. 31–38 Read article
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Hybrid Solar PV–Wind Energy System: A Performance Study
Abstract: The solar PV and, wind energy hybrid technology is based on the concept of a modular, scalable, distributed renewable energy system designed and optimized for on and off grid installations. This kind of system is fully integrated hybrid system that combines wind energy units with PV technology in a compact footprint, creating the greatest energy generation density. The hybrid concept is unique and disruptive, seamlessly utilizing wind and solar energy …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 1, 2017 · pp. 7–10 Read article
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Performance and Improvement of Antenna Designs in Modern Wireless Communication System
Abstract: AbstractIn this paper, the cell innovation and the remote correspondence innovation is creating and enhancing quickly. The reception apparatus goes about as the scaffold between the client terminal and the base station controller. Being a key segment of the remote correspondence framework, the reception apparatus' fundamental capacity is to communicate and to get electromagnetic waves. It will, to an expansive degree, influence the quality and the speed of the correspondence. …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 3, 2017 · pp. 5–10 Read article
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Thermo-Responsive Polymer Blends for Minimally Invasive Medical Procedures
Abstract: Thermo-responsive polymer blends have become a key new class of biomaterials for the minimally invasive medical procedure. They offer precision, flexibility and greater patient safety. These smart materials undergo a change of physical/ mechanical properties relative to temperature difference in the body, limiting tissue trauma and increasing effectiveness of the procedure. Their adjustable sol-gel behavior, shape-memory effects and reversible volume change provides an opportunity for their precise delivery through catheters, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Improving Black Cotton Soil with Sodium Hydroxide and Fly Ash: An Assessment of Optimum Moisture Content, Dry Density, and California Bearing Ratio
Abstract: This study investigates the stabilization of Black Cotton Soil (BCS), an expansive clayey soil primarily composed of montmorillonite minerals, using sodium hydroxide (NaOH) and fly ash. Due to its high plasticity and significant volume changes with moisture, BCS is challenging for construction purposes. Adding NaOH and fly ash can potentially improve the soil's moisture tolerance, compressibility, and reduce its plasticity, making it more suitable for structural applications. The research evaluates …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 192–201 Read article
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Energy Yield from Biomass: A Case Study of a Village in Uttar Pradesh
Abstract: Due to enormous rising demand of fossil fuel and environmental threat, there is a need to expedite the harnessing of renewable sources of energy for sustainable development. The renewable energy resources are vast sources for alternative energy production without endangering our environment and causing threat of climate change. Out of the several resources, the biomass resource is discussed in this paper. Biomass is one of the most potential sources of …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 7, Issue 1, 2017 · pp. 4–10 Read article
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An Extensive Review of IoT and Wireless Power Transfer Based Movable Spotlight
Abstract: This paper provides an in-depth overview of IoT and Wireless Power Transfer-Based Movable Spotlights. The rapid expansion of the Internet of Things (IoT) has created new opportunities for smart gadgets, allowing them to seamlessly integrate into our daily lives. In addition to this trend, wireless power transfer (WPT) technologies have emerged as a transformative alternative for powering devices without traditional connected connections. This paper explores the integration of Internet of …
Published in Recent Trends in Sensor Research & Technology · Vol. 12, Issue 2, 2025 · pp. 16–20 Read article
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Advanced Design, Modeling and Optimization Techniques in Electric Vehicle Using Green Energy: A Review
Abstract: In today’s world, we are using conventional energy sources in a larger amount. To reduce it we must move to use an alternative source, it means replacing the diesel and petrol vehicles with an electric vehicle, which is the best option. The rapid expansion of electric vehicles (EVs) is expected to make them a major contributor to transportation. Increasing fossil fuel use has resulted in greenhouse gas emissions that are …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 3, 2024 · pp. 20–28 Read article
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High-Performance Polymer Composites for Next-Generation Biomedical Sensor Interfaces
Abstract: High-performance polymer composites are emerging as versatile platforms for next-generation biomedical sensor interfaces because they can combine mechanical compliance, electrical functionality, biocompatibility, and structural tunability within a single material system. However, the rapid expansion of polymer matrices, conductive nanofillers, hydrogels, and biodegradable materials has produced a highly diverse literature, making it difficult to identify how material composition and interfacial structure determine sensor performance and clinical suitability. This review critically examines …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Geotechnical Analysis and Performance Evaluation of Subgrade Materials in Road Construction
Abstract: Geotechnical engineering plays a pivotal role in the design, construction, and long-term maintenance of infrastructure, particularly in road construction, where subgrade conditions are directly linked to pavement performance, durability, and overall structural integrity. The performance of a road is heavily influenced by the geotechnical properties of the subgrade, making it essential to thoroughly assess these properties in the planning and construction phases. This study comprehensively investigates the geotechnical characteristics and …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 3, 2024 · pp. 24–29 Read article
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Molecular and Immunological Study for The Relationship of CMV in Miscarriage in Women with a History of Repeated Abortion in Najaf Governorate
Abstract: The study was conducted in Al-Zahra Hospital for Maternity and Children in Najaf Governorate for the period from 1/8/2024 to 1/1/2025., The stream study directed to establish the occurrence of CMV infectivity in women who experienced of continual miscarriage and perform a analyze of the amount of miscarriage situations arising in the Najaf governorate. The study was divided into two parts. The first part was aiming to determine the frequency …
Published in Research and Reviews : A Journal of Immunology · Vol. 16, Issue 2, 2026 · pp. 1–8 Read article