Search
70 articles for “Rocks”
-
Design, Analysis, and Testing of a Carbon Fibre-based Solid Rocket Motors
Abstract: The goal of the research is to simulate the outer shell of a rocket in order to fulfil mission criteria. Case failures can occur for a number of causes, including poor material selection, carelessness in the service conditions, inadequate non-destructive testing during crucial stages of production, and poor design and analysis. For this reason, it is crucial to simulate rockets with precise design and analysis. The study entails the designing …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 650–669 Read article
-
Fuel Less Slingshot Rocket to Flies a Certain Distance Using Costless and Ecofriendly Fuel
Abstract: In this study, the rocket travels a certain distance by utilizing the force provided by the alternative of using potassium nitrate (KNO3) and sugar (C12H22O11). this initial burst reduces the amount of fuel needed for the rocket to achive the necessary speeds and altitudes. Slingshot physics involves using stored elastic energy to shoot something at high speed. This energy comes from specially made elastic bands for slingshots and is initially …
Published in Journal of Aerospace Engineering & Technology · Vol. 14, Issue 2, 2024 · pp. 14–19 Read article
-
Hybrid Rocket Propellant Grains: A Review
Abstract: The go-to-rocket propulsion system is either solid rocket motor or liquid rocket engine, but both have their own drawbacks like solid rocket motors cannot be throttled or stopped and started again or the construction of liquid propulsion systems is quite complex, with difficulty in storage and major safety issues. A hybrid rocket propulsion system uses either fuel or oxidizer in solid form and the other in liquid and has a …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 13, Issue 3, 2024 · pp. 44–51 Read article
-
Carbon Sequestration in Mineralogy: Potential of Ultramafic Rocks for CO₂ Storage
Abstract: The increasing concentration of atmospheric carbon dioxide (CO₂) due to anthropogenic activities has necessitated the development of effective carbon sequestration strategies. Mineral carbonation, particularly utilizing ultramafic rocks, has emerged as a promising approach for long-term CO₂ storage. This review explores the potential of ultramafic rocks in sequestering CO₂, discussing their mineral composition, reaction mechanisms, advantages, and challenges associated with their utilization in carbon capture and storage (CCS). Additionally, advancements in …
Published in International Journal of Minerals · Vol. 2, Issue 1, 2025 · pp. 30–35 Read article
-
Additive Manufacturing of Rocket Propulsion System: A Review
Abstract: In recent years plenty of research is going on to produce effective manufacturing techniques which can produce complex unique designs with reduced cost and lead time for aerospace applications. In this aspect, Additive manufacturing is getting a wide range of popularity in the aerospace manufacturing domain due to its vast applications and advantages. In terms of geometric flexibility and processing time, additive manufacturing outperforms conventional manufacturing processes. Additive manufacturing has …
Published in Journal of Materials & Metallurgical Engineering Read article
-
Solid Rocket Motor Case: A Review of Existing Design and Composite Material Criteria
Abstract: Solid propulsion systems are an integral part of inaugural vehicles for many space agencies because of their relatively simple design and high reliability. The solid propulsion rocket motor case design, including the material used for fabrication, is an important aspect as it affects the solid rocket motor's performance, reliability, and safety. In this abstract, an attempt has been made to review the most commonly used materials in the manufacture of …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 224–232 Read article
-
An Experimental Study to Assess the Effectiveness of Planned Teaching Program Regarding Pelvic Rocking Exercise and Dry Ginger on Knowledge and Attitude Regarding Dysmenorrhea
Abstract: Objective: Dysmenorrhea is characterized by painful menstrual cramps originating from the uterus and is a common gynaecological condition affecting women of all ages and nationalities. Primary dysmenorrhea refers to menstrual pain without any underlying organic disease, while secondary dysmenorrhea occurs due to an identifiable medical condition. Common causes of secondary dysmenorrhea include endometriosis, fibroids, adenomyosis, endometrial polyps, pelvic inflammatory disease, and the use of intrauterine contraceptive devices. Methodology: Experimental research …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 14, Issue 1, 2024 · pp. 6–10 Read article
-
Simulation of Flow Vorticity and Instability Analysis in a Solid Rocket Motor
Abstract: Combustion instability is a major problem in most solid rocket motor (SRM) during its operation. More form of instability is generated due to several factors like coupling of combustion acoustic waves with flow dynamics, grain configuration, combustion chamber design, combustible mixture, etc. This type of flow turbulence is sustained in such system for long durations and leads to failure of the mission. In this paper, an effort has been made …
Published in Journal of Experimental & Applied Mechanics Read article
-
Utilizing Machine Learning to Evaluate the Connection between Poisson's Ratio and the Petrophysical Properties of Reservoir Rocks
Abstract: The Poisson's ratio is a crucial cornerstone, illuminating our understanding of geomechanical behaviour in wells during the dynamic drilling process and the inspiring recovery journey. This research rigorously employs machine learning methods to analyse the significant impact of geophysical parameters on the Poisson ratio in hydrocarbon reservoirs found in oil fields. The analysis utilized data from multiple oil and gas fields, highlighting the crucial relationships between the Poisson ratio, the …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 33–43 Read article
-
Spatial Distribution and Species Diversity of Marine Bibalves Along the Rocky Intertidal Zone of Veraval, Gujarat, India.
Abstract: The rocky intertidal shoreline of Veraval, located along the Saurashtra coast of Gujarat, serves as a vital habitat for various marine organisms due to its unique composition of rocky- sandy patches and tidal pools. This study was undertaken to evaluate the diversity and spatial distribution of marine bivalves at the Jaaleshwar coast (20º 54’ 36.210’’ N, 70º 21’ 09.090’’ E). Field observations were carried out over nine months from July …
Published in International Journal of Marine Life · Vol. 3, Issue 1, 2026 · pp. 25–30 Read article
-
Durability Assessment of Self Compacting, Self Curing Concrete Incorporating Crushed Rock Powder and Mineral Admixtures
Abstract: Curing plays a crucial role in achieving the desired strength, characteristics, and durability of concrete. Negligent curing practices can lead to adverse effects on hydration and mechanical properties of concrete. In recent times, self-curing concrete has gained significant attention due to its potential in reducing water loss through the use of self-curing agents. The Present Research study focus on investigation on durability characteristics of self-curing self-compacting concrete using crushed rock …
Published in Journal of Polymer & Composites · Vol. 11, Issue 10, 2023 · pp. 25–35 Read article
-
Comparison of Several Clinical Scoring Systems in Predicting the Outcome of Variceal Bleeding
Abstract: Background: Stratification of variceal bleeding patients into high-risk and low-risk group is very important to guide them through the suitable clinical pathway and to save the medical costs. We purposed to find out the best scoring system in the prediction of rebleeding and death after variceal bleeding by comparing four clinical scoring systems(clinical Rockall score, complete Rockall score, AIMS65 score, Child-Pugh score) which seemed to be applicable and simple. Method: …
Published in Research and Reviews: A Journal of Medicine · Vol. 15, Issue 2, 2025 Read article
-
Self-Navigating Rover for Real Time Mapping and Disaster Management
Abstract: This paper presents the development of an autonomous rover designed for mapping and object detection in challenging terrains. The rover integrates a 6-wheel rocker-bogie mechanism for enhanced mobility and stability, making it suitable for rugged and uneven environments. Key components include an Arduino Uno for control operations, a Camera module for real-time visual data capture and object detection, and a LiDAR for precise distance measurement and spatial mapping. The system …
Published in Journal of Aerospace Engineering & Technology · Vol. 15, Issue 1, 2025 · pp. 23–33 Read article
-
Study on the Rocking Phenomenon of Parachute Rope
Abstract: With the constant development of computer technology and the development of numerical simulation techniques, the simulation of the dynamics of the parachute is becoming increasingly accurate. To eliminate the effects of large deformation of the grid in the conventional parachute simulation, we chose the parachute model using the smooth particle hydrodynamics method and performed a steady-state fluid-solid coupling numerical simulation, which is in good agreement with the calculated gas power …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 2, 2025 · pp. 1–7 Read article
-
Cretaceous–Tertiary Rift Basins of Northwestern Kenya: Tectonics, Stratigraphy, and Petroleum Implications
Abstract: This study looks at the potential for oil and gas in northwest Kenya, giving a broad overview of the geology, tectonic (earth movement) features, and underground rock layers in four main basins from the Cretaceous to Tertiary periods: Lotikipi, Lake Turkana, Lokichar–Kerio, and Chalbi. These are part of the larger East African Rift System. Recently, important signs of oil and gas structures have been found in the Lokichar Tertiary Basin …
Published in Journal of Geotechnical Engineering · Vol. 13, Issue 1, 2026 · pp. 25–54 Read article
-
Minerals: A Comprehensive Review of Classification, Properties, Formation, and Their Role in Modern Technology and Sustainability
Abstract: Minerals are naturally occurring, inorganic, solid elements with a definite chemical composition and a characteristic crystal structure. They are the building blocks of rocks. Minerals are the key to the development and progress of human civilization. They are used for the development of infrastructure, electronic gadgets, agriculture, and medicine. This research paper aims to present an exhaustive overview on the field of mineralogy, which includes the definition, classification, physical and …
Published in International Journal of Crystalline Materials · Vol. 3, Issue 1, 2026 · pp. 25–33 Read article
-
Isolation and Evaluation of Aspergillus Niger : A Fungi Implicated in Infectious Diseases and its application as potential Biofertilizer
Abstract: In the quest to improve the agronomic effectiveness of Rock Phosphate (RP), a widely available and cost-effective phosphate fertilizer, this study aimed to overcome its limited solubility by isolating fungal strains capable of solubilizing rock phosphate. Soil samples were collected from Garhmukteshwar, Hapur, for the isolation process. Among several isolates, three strains exhibited the highest rock phosphate solubilization within a seven-day timeframe, coinciding with a significant decrease in soil pH. …
Published in Recent Trends in Infectious Diseases · Vol. 1, Issue 2, 2024 · pp. 29–34 Read article
-
Historical Development and Potentiality of LED-fluorimeter
Abstract: Pulsed LED-fluorimetry is a highly sensitive, versatile, and well-documented field technique for the direct determination of uranium in water samples at the μgL-1 levels. Pulsed LED-fluorimetry has been utilized to assess uranium in a variety of matrices, including mineralized rocks, ores, beneficiation products, and other matrices, without the need for any kind of separation method. Using the high sensitivity of pulsed LED-fluorimetry, interferences from related and auxiliary elements are removed …
Published in Research & Reviews : Journal of Physics · Vol. 13, Issue 1, 2024 · pp. 14–21 Read article
-
Characterization of Thermochemical Properties and Combustion Behavior In AP/HTPB Polymer Composite Solid Propellant for Enhanced Performance
Abstract: The thermal decomposition of solid propellants containing hydroxyl-terminated polybutadiene (HTPB) binder is a complex process, driven by multiple interacting chemical and physical factors. Solid propellant combustion characteristics are profoundly influenced by the composition of the propellant, the conditions of pressure, the starting temperature, and a range of aero-thermochemical parameters. The paper explores the influence of polymeric structure in the HTPB binder on thermal decomposition characteristics of the AP/HTPB composite propellants …
Published in Journal of Polymer & Composites · Vol. 13, Issue 3, 2025 · pp. 502–511 Read article
-
The Tech That Makes Space Travel Possible: From Earth to Orbit
Abstract: Space flight was once only a dream, but it has now become one of the most important achievements of modern science and engineering. This article looks at the technology that make it possible to travel from Earth to orbit, with a focus on the complex systems that make space missions safe, efficient, and repeatable. It looks at how rocket propulsion has changed throughout time, from classic chemical engines to new …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 15, Issue 1, 2026 · pp. 26–33 Read article