Search
374 articles for “space technology”
-
Possible Ionospheric Precursors to Magnitude 6.2 Earthquake near Iquique, Chile on 1st November, 2018
Abstract: On November 1st, 2018 a strong magnitude 6.2 earthquakes hit areas near Iquique of Chile. According to USGS, the earthquake was deep with epicenter at 102 km from surface. 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 as ionospheric precursors for strong …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 3, 2018 · pp. 48–55 Read article
-
The Fate of Our Universe: How This Universe Will End
Abstract: There are two ultimate questions for human beings: “where do we come from?” and “where are we going?”. For a long time, they have been topics of just religion and philosophy. But in the last three decades, along with the rapid development of modern cosmology, scientists have already obtained some important clues to these two questions. To explain the origin of the Universe, cosmologists have established a standard theoretical framework: …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 1, 2019 · pp. 15–27 Read article
-
Do Dark Galaxies Exist in the Universe?
Abstract: As huge islands of stars, gas and dust that populate the universe in groups and clusters. But the theory has predicted that some galaxies, called “dark galaxies,” have few if any stars and are made predominately of dense gas and dark matter. Because they are devoid of stars, dark galaxies have been impossible to detect directly by optical telescope until now. Some theoretical models predicted that dark galaxies were common …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 1, 2019 · pp. 1–3 Read article
-
Estimation of Stratospheric Ozone Concentration over Southern Nigeria using Neural Network: Case Study of Lagos and Port Harcourt
Abstract: The neural network model was developed to estimate the stratospheric ozone concentrations along with some meteorological parameters. The neural network was trained using monthly maximum data provided by Nigerian Meteorological Agency (NIMET) and National Aeronautics and Space Administration (NASA) over a period of 43year (1970-2012) in the towns of Lagos and Port Harcourt Ozone concentration from the two stations was estimated using a surface meteorological variable as predictors for the …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 1, 2019 · pp. 4–9 Read article
-
Light Curve Analysis for Different Artificial Space Objects
Abstract: This research deals with the studying of the temporal variations of brightness “light curves” for different space objects. Mathematical expressions describing the light reflection from the satellite components have been established. The computations are applied to different space objects and artificial satellites with various geometries and altitudes. Data precise of artificial satellites are utilized to estimate the obtained results. Keywords: Analysis, brightness, reflection model, various satellite geometriesCite this ArticleAfaf M. …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 1, 2019 · pp. 10–14 Read article
-
Evaluations of Disturbance and Land Cover Changes in the Chitrakoot Forest Range Madhya Pradesh
Abstract: Evaluation of disturbance and land cover change of forest degradation in the Chitrakoot forest range. Land cover change detection and normalized difference vegetation index analysis was carried out on the three images. Global positioning system and topographical map of scale 1:50,000 for ground verification ERDAS Imagine and ArcGIS Software for satellite image processing and analysis were used for the analysis. The Disturbance and land caver change analysis has been attempted …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 2, 2019 · pp. 1–5 Read article
-
Landuse/Landcover Changes and Geo-Environmental Impacts on Beluguppa Mandal of Anantapur District of Andhra Pradesh, India, using Remote Sensing and GIS Modelling
Abstract: The study aims to discriminate the changing pattern of land use and its geo-environmental impacts over the Beluguppa mandal of Anantapur district in the division of AP state, India. Satellite imageries were analyzed to perceive the changes in landuse and landcover (LULC) in the past 19 years in Beluguppa mandal. The assistance of Remote Sensing (RS) and Geographic Information System (GIS) modeling has been adopted in mapping the LULC changes. …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 2, 2019 · pp. 6–15 Read article
-
Impact of Tropical Cyclone “Fani” on Chilika Lake Inlet
Abstract: The Extremely Severe Cyclonic Storm ‘FANI’ made landfall on the Odisha Coast south of Puri on 3 May 2019 and the eye of the system was completely moved into land by 1000 hrs at the wind speed of 175 - 185, gusting up to 205 kmph which hit in Puri district near Chilika lake inlet. The study area is the part of Outer channel of the Chilika lake which is …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 2, 2019 · pp. 26–29 Read article
-
Flood Inundation Mapping for using Sentinel-1 SAR Data for Assam during 2018
Abstract: This paper is focusing on the flood inundation mapping of Hailakandi, Assam flood during 2018 using Sentinel 1 Single Look Complex (SLC) and Ground Range Detected (GRD) data. For the analysis of water pixels, pre and post event images of SLC and GRD data were downloaded with similar specification such as same date, pat and row. Supervised classification is performed with the pre and post event of the study area …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 8, Issue 2, 2019 · pp. 16–25 Read article
-
Optimization of Manufacturing Process of Booster Rocket to Reduce the Cost
Abstract: The spacecraft is launched into earth orbit or beyond with the help of boosters. After entering into earth orbit, the booster leaves the spacecraft and falls back into the earth after reaching a point called as booster engine cut-off (BECO). The spacecraft continues flight after leaving the booster with upper stage engines. Some of the boosters are recovered, reconstructed and reused. The boosters used for space shuttle are recovered and …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 7, Issue 1, 2018 · pp. 24–34 Read article
-
A Review on Smart Parking System
Abstract: The Smart Parking System is an intelligent solution designed to reduce traffic congestion and save time by efficiently managing parking spaces using modern technology. To determine if a car is there or not, sensors are placed in each parking space in this system. The collected sensor data is processed by a microcontroller and transmitted to a display unit or mobile application, enabling users to access real-time information about parking availability. …
Published in International Journal of Electrical and Communication Engineering Technology · Vol. 4, Issue 2, 2026 Read article
-
C4ISR: A Ground Zero Support to the Soldier from the Sky
Abstract: The precision ‘surgical strike’ that Indian soldiers recently carried out on terrorist camps and launch pads across the line of control was assisted by our eyes deep into the sky facilitated by our satellites. India is quickly developing a capability called ‘C4ISR’- command, control, communications, computers, intelligence, surveillance, and reconnaissance. Advances in Indian space program are the symbol of the country's state-of-the-art technological abilities resulting into its phenomenal growth in …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 5, Issue 3, 2016 · pp. 27–33 Read article
-
CogniLeapAI: An Adaptive Personalized Learning Platform with AI-Powered Content Generation, Active Recall, and Intelligent Study Planning
Abstract: Students today must work through large volumes of academic PDFs with little tooling to support effective learning. Passive reading remains the default approach for most learners, yet it consistently produces poor retention and demands excessive preparation time. This paper presents CogniLeapAI, a web-based platform designed to convert static PDF documents into a closed-loop adaptive learning system. AI requests are routed across four providers (Google Gemini, OpenRouter, LaoZhang, and Kie.ai) with …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 13, Issue 2, 2026 · pp. 45–63 Read article
-
Effect of Inter Shell Spacing on Performance of MWCNT Bundle at 100 µm Interconnect Length
Abstract: This paper introduces the aspects of the utilization of Multi Wall Carbon Nanotube (MWCNT) as VLSI interconnects. The equivalent impedance parameters are figured concerning inter-shell spacing for L=100 µm and examination through diagrams are demonstrated. The delay and power dissipation of MWCNT with changing inter shell spacing have additionally been mimicked for ideal driver size and ideal number of repeaters at 32 nm, 22 nm and 16 nm technology nodes, …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 3, 2015 · pp. 71–79 Read article
-
Geomorphological Dynamic of Mangala Cut of Puri District, Odisha: A Geospatial Approach
Abstract: Odisha rivers are east flowing and the Mahanadi is the largest river in Odisha. The river Bhargavi is the southern branch river of Mahanadi, which flows to Chilika lagoon parallel with Bay of Bengal. In the year 1929, the toposheet has no information about Mangala cut. In the year 1937, it was made for controlling flood in Bhargavi river. The Mangala cut was constructed to get relief from the regular …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 5, Issue 3, 2016 · pp. 1–6 Read article
-
Geomatic Based Morphometric Analysis of Kadalibadi Micro-Watershed of Ansupa Lake Catchment, Cuttack District, Odisha
Abstract: In the present study, an attempt has been made to evaluate morphometric parameters derived from SRTM data and also land use/land cover, geomorphology, soil and also drainage map are prepared from SOI toposheet, LISS IV and Cartosat II satellite images. The study is about the Kadalibadi micro-watershed of Ansupa catchment and the micro-watershed, covering five nos. of villages (Kadalibadi, Podapada, Radhadarsanpur, Mahidharpur and Baidehipur). Remote sensing (RS) along with geographical …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 5, Issue 1, 2016 · pp. 10–21 Read article
-
Physical Modeling of Mass Transport Processes in Extraterrestrial Landscapes
Abstract: Currently the progress in physical models based on mass transport in both the Earth's surface and extraterresterial landscape has been growing. It is a frame work involving different natural and made made processes including aeline process, fluid flow process, magmal movement, Geomagnetic stroms, and clould flow modesl etc. These process encorporates Physical models and appraches which help to simulate, compute and experiment in order to reduce complexity. However, their operating …
Published in International Journal of Universe · Vol. 1, Issue 2, 2025 · pp. 47–54 Read article
-
Park Information System for Kolkata: A Low Cost Web Enabled Solution
Abstract: Green parks in urban environment play an important role in promoting public health, art, culture, tourism and economy. City dwellers require information about the parks to get the benefit of green spaces. Web GIS technology has a potential to maintain inventory and disseminate spatial and aspatial information over the Internet. Open source software enables cost effective and feature rich implementation, operation and maintenance of Web GIS application. In this study …
Published in Current Trends in Information Technology · Vol. 6, Issue 1, 2016 · pp. 35–39 Read article
-
Assessment Of Land Use And Land Cover Change In District Baramulla (J&K)
Abstract: The present study aims to study the land use land cover change detection in district Baramulla from 1980 to 2014. The images of two different time periods 1980 (MSS) and 2014 (OLI) have been used to measure the change detection in the study area. Spatial and radiometric enhancement has been carried out to improve the image quality. The analysis revealed that the area under built-up, horticulture and pasture has shown …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 6, Issue 3, 2017 · pp. 1–14 Read article
-
A Parametric Investigation on the Drag Effect Consideration in Re-Entry Vehicle Performance
Abstract: Rocket adaptation relies more on normal gravity experimentation and simplified conventional theories. The related complexities and lack of well-defined prediction system have always restricted futuristic missions. The work primarily addresses issues related to the accurate prediction of rocket dynamics and re-entry vehicles. Parametric study on the conventional equation systems was carried out with consideration of geometric and design variables. Emphasis is put on the practical cases with minimization of assumptions. …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 5, Issue 3, 2016 · pp. 7–26 Read article