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374 articles for “space technology”
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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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When Light Talks The Realm of Opto-Electronic Communication
Abstract: The basic principles of opto-electronics systems are discussed. In these systems the electrical signals are changed to optical signals for high speed and long distance communication and then converted back to electrical form at the receiver. This study underscores the essential elements including light sources, optical fibres, modulators, and photodetectors that facilitate the effective transmission of information with less loss and interference. The paper also discusses the benefits of opto-electronic …
Published in Trends in Opto-electro & Optical Communication · Vol. 16, Issue 1, 2026 · pp. 1–14 Read article
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Separation of gas bubbles from a fluid in microgravity
Abstract: The paper presents the constructed device and developed method of gas bubbles separation from fluid using the specially created temperature gradient in a fluid in the conditions of microgravity, which differs by simplicity of a construction, economically high efficiency and productivity, and can be successfully used to separation of gas bubbles from a fluid in various technological systems on the international space station. Such technological systems include processes that occur …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 9, Issue 1, 2020 · pp. 23–31 Read article
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Advancements in Privacy-Preserving Techniques for Cloud Database Management Systems: A Review Analysis
Abstract: Cloud computing is a technology that provides a lot of configurable resources, enabling decentralized data execution and space. Cloud technologies have transformed the ideas of internal data storage and access to provide businesses with flexibility and efficiency. Thanks to cloud services like DBaaS, users may make use of advanced database features without having to worry about the burden of traditional databases. With more organizations moving to the usage of Cloud …
Published in Journal of Web Engineering & Technology · Vol. 13, Issue 1, 2026 · pp. 11–22 Read article
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The Evolution of Ion Propulsion Systems: A Comprehensive Review of Technologies and Applications
Abstract: Field-Emission Electric Propulsion (FEEP) represents a cutting-edge advancement in electric propulsion systems, leveraging the principle of ion emission through intense electric fields to generate precise and efficient thrust for spacecraft. This study explores the working mechanisms, performance characteristics, and applications of FEEP thrusters in the context of modern space exploration. FEEP systems utilize liquid metals, such as cesium or indium, as propellants, which are ionized at the emitter tip and …
Published in Recent Trends in Fluid Mechanics · Vol. 12, Issue 1, 2025 · pp. 16–22 Read article
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The Emerging Golden Age of Astrophysics: Progress, Discoveries, and Future Directions
Abstract: The period between 2024 and 2026 has marked a transformative era in astrophysics, fundamentally reshaping our understanding of the universe and its underlying physical mechanisms. Significant advancements in observational astronomy, computational modeling, and space exploration technologies have enabled scientists to investigate cosmic phenomena with unprecedented precision. Among the most groundbreaking achievements, the James Webb Space Telescope (JWST) has provided high-resolution infrared observations that revealed the large-scale distribution of dark matter, …
Published in International Journal of Universe · Vol. 2, Issue 1, 2026 · pp. 6–9 Read article
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Multispectral Imaging Camera Sensing to Evaluate Vegetation Index from UAV
Abstract: Agriculture in India is always on top priority. With an increase in population and rise of it in coming generations, it is a challenge to meet the demand of indefinite food supply. The study describes the use of multispectral imaging sensors to help farmers getting the real and live data about their agriculture fields. Farmers are the backbone of/for any country in the world and they generate a good amount …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 2, 2019 · pp. 30–42 Read article
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Morphological Dynamic of Ekakula Spit and Kalam Island in Kendrapara District of Odisha—A Geospatial Approach
Abstract: Odisha Coast of India is about 480 km long stretching and oriented in a SW-NE direction. The sediment contributions from the rivers are deposited along the coast. The littoral drift deposition builds spits and bars at the river mouths especially at the southern side of the river mouths. The one of the study area is situated between 20°40’57.417”N and 20°45’49.947”N latitude and 87°1’5.576” E and 87°7’4.959”E longitude. Another is the …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 6, Issue 3, 2017 · pp. 35–39 Read article
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Effect of Solar X-ray Flares on VLF Radio Wave Signal Strength at 19.8 and 24 kHz Received at Khatav (India) (16°46'N, 75°53'E)
Abstract: The period from August 2009 to July 2012 was an important period as 2009–10 was solar minimum period, and solar cycle was extended by 16 months during this period. In this period, solar activity like solar X-ray flares, solar wind, coronal mass ejections were at minimum level. In this research, it is focused on detailed study of response of signal strength of VLF radio waves transmitted by VLF station NWC …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 6, Issue 3, 2017 · pp. 15–34 Read article
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Modeling the Solar Radiation Parameter over Abuja using Neural Networks
Abstract: Many computer simulation models which predict growth, development and yield of agronomic and horticultural crops require daily weather data as input. One of these inputs is daily total solar radiation, which in many cases is not available owing to the high cost and complexity of the instrumentation needed to collect the data. In this work, a neural network model of the solar radiation over Abuja, Nigeria is developed. The model …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 6, Issue 3, 2017 · pp. 40–48 Read article
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Study of Energy Injection during Intense and Super Intense Geomagnetic Storm Driven by Coronal Mass Ejection (CME)
Abstract: We have studied the energy injection process associated with CME driven storms that occurred during 18th February 1998, 4th May 1998, 16th July 2000 and 20th November 2003. The energy injection efficiency was parameterized by the ԑ parameter as a measure of the energy transfer of solar wind into the magnetosphere; we observed that intensification of ring current (Dst) depends on the energy injection into the magnetosphere and the duration …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 6, Issue 3, 2017 · pp. 49–53 Read article
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Design Analysis of Micro-Strip Moody Patch Antenna For Space Application
Abstract: Micro-strip antennas are frequently used in wireless applications. There are well known beneficial mechanical characteristics like low profile, planar but conformal to non-planar, easy to fabricate and light weight. Micro-strip antenna has flexibility in the term of electromagnetic parameter like gain, radiation pattern and polarization. In the application of spacecraft, missile and satellite application the antenna requirement is micro-strip due to their light weight, size, cost, performance, low profile and …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 1, 2018 · pp. 1–4 Read article
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Numerical Investigation of Missile Strike over an Unmanned Aerial Vehicle
Abstract: Objectives: The present work deals with the impact analysis of missile over an unmanned aerial vehicle (UAV), the missile is made to strike on the UAV with various angles on the different locations and structural behaviour of the UAV will be investigated through the intended work. Novelty: There is very limited data concerning structural failure modes caused by impact and explosion loading on an UAV due to missiles. Method: The …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 2, 2018 · pp. 1–7 Read article
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The Study of Temporal Variations in Ionosonde foF2 and GPS TEC at Multan and Islamabad during Low and High Solar Activity in Solar Cycle 24
Abstract: The study of temporal variations in critical frequency of the F2 layer (foF2) and total electron content (TEC) calculated from satellites of GPS (Global Positioning System) has been conducted at Multan (Geog. Lat: 30.16°N, long: 71.53°E) and Islamabad (33.66°N, 73.23°E) during low solar activity (LSA) year 2009 and relatively high solar activity (HSA) year 2012 of solar cycle (SC) 24. In general, it has been observed that the diurnal variations …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 2, 2018 · pp. 8–17 Read article
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Historical Review of Ionosphere in Perspective of Sources of Ionization and Radio Waves Propagation
Abstract: Before the discovery of ionosphere, the electronic communication was not possible at a distance greater than 100 km due to the curvature of Earth; but after its discovery, the ionospheric wave propagation made possible the electronic communication at even more than 3000 km via reflection of radio waves through ionosphere. The ionosphere is electrically neutral, ranging from 50 to 1000 km in altitude and outer limit can exceed to 3000 …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 2, 2018 · pp. 28–39 Read article
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Modelling of Flood in Lagos using Artificial Neural Network
Abstract: Flooding events have caused havoc to live and properties in recent times. Flooding could be caused by several factors some of which are rainfall, temperature, and relative humidity, which lead to rise in water level. The method of artificial neural networks (ANN) was used in this work to model flood occurrence in Lagos, Nigeria. Meteorological data were collected from the Nigeria Meteorological Agency (NIMET) and Nigeria Hydrological survey Agency (NHSA) …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 2, 2018 · pp. 50–57 Read article
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Prediction of Solar Proton Events Occurrence using CMEs and Flares as Control Events
Abstract: Prediction of Solar Energetic Particle (SEP) events is an important research area and helps in enabling space scientists prevent the risks and hazards for the space assets and astronauts. Several methods have been developed for predicting SEP events by means of studying the measured Solar Proton Event (SPE) in conjunction with other remote and in-situ measurements. The supporting measurements include solar soft and hard x-ray data, radio measurements, sunspot numbers, …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 3, 2018 · pp. 26–34 Read article
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Report on the Indian-Space-Programmes with Indian-Missile-Programmes from the 20th Century of 2nd Millennium to the 21st Century of 3rd Millennium
Abstract: Newton’s laws of motion are the fundamental principles of Rocket-Science. According to the recent earlier publications, Newton’s third law of motion has been recently established in space-time by Mukhopadhyay as author, using both of the Mukhopadhyay’s concept theory and Mukhopadhyay’s concept mechanics related to the special theory of relativity in third quantisation. According to the brief description in this report, Indian Space Research Organisation (ISRO) has obtained many significant achievements …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 3, 2018 · pp. 35–47 Read article
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Feasibility of Optimized Heat Source Assisted Combustion in Solid Rocket Motors
Abstract: Advances in rocket propulsion have a predominant role in space exploration developments. As an active chemical propulsion system, the efficiency of operations depends largely upon the nature of the combustion process and related energy transfer. Modern rockets are well known to epitomizes a distinct area of propulsion assisted by external thermal source(s)/rocket boosters. The presence of external heat source(s) encourages high possibility of fire risk/ hazards, which can adequately threaten …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 3, 2018 · pp. 12–25 Read article
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Possible Ionospheric Precursors to Magnitude 6.6, 6.8 and 6.5 Earthquakes near Port Hardy, Canada on 22nd October, 2018
Abstract: On October 22nd, 2018 a series of three large magnitude earthquakes hit areas near Vancouver island of Canada. According to USGS, the earthquakes were shallow with depths of epicenter ranging at around 10 Km. This paper demonstrates possible anomalous changes in the ionospheric parameters like VTEC, foF2, hmF2 in the ionosphere around areas hit by the earthquake a few days prior to the earthquake. These anomalous changes may be treated …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 3, 2018 · pp. 1–11 Read article