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Explosions - Science topic
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Publications related to Explosions (10,000)
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Octonion theory antimass dark photon production is (to-be) shown by measuring 50 [mW] of heat radiated from the anode of a capacitor in a vacuum. The computed Fowler-Nordheim tunneling current provides the required energy to generate the measured heat. Dark photons in the anode map local zero momentum phonon eigenstates into nonlocal phonon 4-momen...
This study focused on the inhibitory effects of dry water materials on the coal dust explosion characteristics in the coal hydrogenation process by adopting a 20 l explosion device. Additionally, the inhibitory effects of dry water material were compared with SiO2 and NH4H2PO4. The results showed that 10 wt% dry water materials notably delay the ar...
Britain’s cultural revolution began 50 years ago in 1976. The capital’s Metropolitan Police Force had
declared that black youth were the vanguard of the criminal classes, feeding both moral panic and
also a powerful subcultural reaction from those labelled the new folk devils by the media and politi�cians. Linton Kwesi Johnson’s poem All we doin...
The Whole-in-One Framework provides a groundbreaking way to understand the Singularity, not just as a technological event but as a probabilistic transition in human decision-making. This article explains how the framework, using a sigmoid-based knowledge evolution model, predicts the Singularity as the point where humanity's probabilistic decision-...
The steam explosion of softwood bark generates blow steam condensates rich in furans, such as furfural and 5-hydroxymethylfurfural (5-HMF). These are not only problematic inhibitors to enzymes and yeast but are also valuable platform chemicals, and their presence relates to the process intensity. This study explores the potential of Raman spectrosc...
In first part of this paper a human rights violation at some Slovenian courts is briefly highlighted. This violation has been firmly proved not just through a judicial proofs, but also by a full physical analysis. Apart of the court proceedings some important physical facts are described, which were quite misunderstood and even intentionally neglec...
Stellar streams are a promising way to probe the gravitational effects of low-mass dark matter (DM) subhalos. In recent years, there has been a remarkable explosion in the number of stellar streams detected in the Milky Way, and hundreds more may be discovered with future surveys such as LSST. Studies of DM subhalo impacts on streams have so far fo...
Driven by the goals of carbon neutrality, electrochemical storage technologies play a vital role in supporting the integration of renewable energy and reducing dependency on fossil fuels. The Mn-based rechargeable battery (MnRB) is gaining significant attention in the battery industry due to its high voltage platform and high energy density, making...
In second part of this paper a physical background of
firecracker explosion and its influence on hearing damage
is described. This explosion took place very close to the
around 150 dBC. However, due to incorrect metrics used,
the expert witness estimated intuitively this level to be
much lower, with four hundred times to low energy value,
The exper...
Se trata de explicar un hecho tan inusual como importante: que una comunidad intelectual de una ciudad periférica, durante un periodo muy corto de tiempo (Santiago de Chile 1968-1972) se haya transformado en una de las capitales mundiales del pensamiento, generando y exportando algunas de las expresiones eidéticas más influyentes (el dependentismo,...
In this study, risk analysis of the effects of climate change on process accidents was aimed and a methodology was proposed in this context. Firstly, process accidents between 2008 and 2023 were analyzed through databases. Then, the province and organization where the risk analysis studies will be performed were selected. In the last stage, risk an...
Large transformer models are known to produce high-norm tokens. In vision transformers (ViTs), such tokens have been mathematically modeled through the singular vectors of the linear approximations of layers. However, in large language models (LLMs), the underlying causes of high-norm tokens remain largely unexplored, and their different properties...
The inherent computational complexity of validating and verifying concurrent systems implies a need to be able to exploit parallel and distributed computing architectures. We present a new distributed algorithm for state space exploration of concurrent systems on computing clusters. Our algorithm relies on Remote Direct Memory Access (RDMA) for low...
We present a new methodology for the computational modeling of fluid–structure interaction (FSI) involving underwater explosion (UNDEX) and thin-shell structures. The FSI formulation makes use of an immersed approach and employs a simple and effective volumetric penalty coupling between the shell structures and surrounding multiphase flow. The mult...
It is essential to standardize the safety characteristics of dust explosions to mitigate their impact on the process industries. The 20 L sphere primarily investigates the safety characteristics, namely explosion pressure (P_ex) and the rate of pressure rise ((dP/dt)_ex), of dust explosions at the laboratory level. Ensuring uniform dust distributio...
Although Kolmogorov-Arnold based interpretable networks (KAN) have strong theoretical expressiveness, they face significant parameter explosion and high-frequency feature capture challenges in high-dimensional tasks. To address this issue, we propose the Kolmogorov-Arnold-Fourier Network (KAF), which effectively integrates trainable Random Fourier...
This paper outlines the technical and organizational measures implemented by the Italian supercomputing center, CINECA, to efficiently collect, process, and store sensitive-omics data in compliance with GDPR regulations. Indeed, the explosion of High Throughput Sequencing in medicine has raised tremendous opportunities for large-scale genomic data...
The three-dimensional (3D) and dynamic development of land use has created a demand for updating topological relations of 4D spatio-temporal data. However, limited by data structures and updating methods, the existing spatio-temporal data updating methods are not efficient at updating complete topological relations of 4D spatio-temporal data. This...
The article presents an experimental and numerical study on the effectiveness of an additional shield mounted under the vehicles in reducing the penetration capability of the scattered mines, using the example of the MN-123 mine. For this purpose, the formation of the EFP (explosive formed penetrator) was analyzed for the classic scattered mine sys...
The dynamics of the development of Belarusian culture at the turn of the 20th and 21st centuries can be divided into stages: up to 1990 (restoration of the independence of Belarus); until 1996 (a coup under the beautiful name of a referendum); 2010 (Ploshcha); 2020 (The Revolution of Truth). Since 1990, Belarusian culture has created a solid founda...
Extreme loads can arise from accidents such as vehicle collisions or airplane crashes, as well as deliberate acts of terrorism or military attacks involving blasts and fragmentation. Blast overpressure can also occur accidentally, for example, from explosions of hazardous materials such as gas. Distinguishing between accidental and deliberate loads...
This paper investigates the tracking control problem for fractional-order (FO) nonlinear systems with model uncertainties and external disturbances under full-state constraints. An adaptive fuzzy control strategy based on a command filter is proposed, where the asymmetric Barrier Lyapunov Function is adopted to ensure that the states do not violate...
Molecular clusters are aggregates of molecules weakly bound by the van der Waals force between molecules. Removing one electron from each constitutive molecule results in van der Waals bond cleavages through Coulomb explosion. This provides an ideal prototype to further study the environmental effects played by one fragmented ion on the other one a...
Type Ia supernovae (SNe Ia) are runaway thermonuclear explosions in white dwarfs that result in the disruption of the white dwarf star, and possibly its nearby stellar companion. SNe Ia occur over an immense range of stellar population age and host galaxy environments, and play a critical role in the nucleosynthesis of intermediate-mass and iron-gr...
The ZTF SN Ia Data Release 2 provides a perfect opportunity to perform a thorough search for, and subsequent analysis of, high-velocity components in the Si II $\lambda$6355 feature in the pre-peak regime. The source of such features remains unclear, with potential origins in circumstellar material or density/abundance enhancements intrinsic to the...
Compared with history, which is a compendium of statements of what happened in human past, rumors are a fleeting phenomenon that escapes scholarship from historiography. However, rumors, as the manifestation of local beliefs and the power relationships at the time, can expand the horizons of history by providing decentralized perspectives towards v...
The recent prediction and discovery of hypervelocity supernova survivors has provided strong evidence that the "dynamically driven double-degenerate double-detonation" (D6) Type Ia supernova scenario occurs in Nature. In this model, the accretion stream from the secondary white dwarf in a double white dwarf binary strikes the primary white dwarf vi...
In the era of information explosion, as a form of personalized recommendation, dialogue recommendation systems provide users with personalized recommendation services through natural language interaction. However, in the face of complex user preferences, the traditional dialogue recommendation system has the problem of a poor recommendation effect....
Discovering stable polymeric nitrogen phases and exploring their properties are crucial for energy storage and conversion, garnering significant attention. In this study, we investigate the formation possibility of a stable compound between Ar and N2 through ab initio calculations under low-pressure conditions (0–100 GPa). The novel super nitride,...
The inherent risks of fluid leakage, combustion, and explosive reactions constitute major impediments to the widespread commercial deployment of lithium battery technologies. To solve these problems, solid‐state electrolytes presenting the advantages of non‐leakage, good thermal stability, non‐volatilization, low spontaneous combustion or explosion...
Reactive powder concrete (RPC) is widely used in ultra-high-rise buildings, hydropower stations, bridges, and other important infrastructures. To study the dynamic response and damage characteristics of RPC columns and frames considering coupled fire and explosions, an analytical model of RPC columns and frames with coupled fire and explosions was...
The blow-up of the marine pipeline raised an international uproar. The destruction of the pipeline not only causes great economic losses but also has a significant impact on the ecological environment. In order to investigate the damage process of the marine pipeline, a fluid–structure interaction underwater explosion model based on the Arbitrary L...
Though there is robust literature on the history of the advice genre, Reddit is an unrecognized but significant medium for the genre. This lack of attention, in part, stems from the lack of a coherent timeline and framework for understanding the emergence of dozens of advice-related subreddits. Noting the challenges of Reddit historiography, I trac...
Raspberry leaves are renowned for their abundant biomass and bioactive compounds, making them highly valuable in both medicinal and industrial applications. In this study, the extraction efficiency of bound phenolics (BP) from raspberry leaf residues (Rubus idaeus) was evaluated using four individual processes: water extraction (WA), alkaline hydro...
Scalidophora, the ecdysozoan group including priapulids, kinorhynchs and loriciferans, comprises some of the most abundant and ecologically important Cambrian animals. However, reconstructions of the morphology and lifestyles of fossil scalidophorans are often hampered by poor preservation of their submillimetre-scale cuticular specializations. Bas...
The contemporary scholarly communication environment is characterized by the growth in mandates and infrastructure for open access publication and open approaches to the research lifecycle, with a consequent explosion in the number of online platforms seeking to provide infrastructure for open scholarship. These include corporate academic social ne...
In order to solve the wall damage problem of roadways with deep and high stress in methane explosion accidents, mathematical-physical analysis models for the dynamic response damage of roadway walls were established by LS-Dyna software in this paper, and the models were validated to be effective. The roadway wall displacement, stress, and deformati...
Hydrogen peroxide (H2O2) is a versatile chemical widely used in various industries. The traditional anthraquinone method for H2O2 synthesis has environmental and safety concerns due to the use of organic solvents and hazardous by‐products. The direct synthesis of H2O2 from H2 and O2 poses risks of flammability and explosion. Recently, the 2‐electro...
Background
Hospitals are complex and dynamic facilities that house vulnerable people, medical equipment, and hazardous materials, making them susceptible to fires and explosions with potentially catastrophic effects. This study aims to understand and address fire and explosion risks in hospital environments using biomedical engineering, safety, and...
Ethiopia has experienced rapid urbanization over the past three decades, leading to the explosion of building construction. The job created in the construction industry of the country was hazardous due to the nature of the activities involved in the industry. However there is paucity of evidence regarding the prevalence and risk factors of injuries...
A resistive magnetohydrodynamics simulation with a dynamo term is performed for modeling the collapsar in full general relativity. As an initial condition, a spinning black hole and infalling stellar matter are modeled based on a stellar evolution result, superimposing a weak toroidal magnetic field. After the growth of a massive torus around the b...
We consider a general model for a quasi-spherical explosion in which a part of the explosion energy is thermalized, forming an expanding photosphere around a compact object, and the second part of energy is taken by the expanding shell of material which forms a shock wave in the surrounding medium. Different types of particles (electrons, hadrons)...
We study the late-time evolution of the compact Type IIb SN 2001ig in the spiral galaxy NGC 7424, with new and unpublished archival data from the Australia Telescope Compact Array and the Australian Square Kilometre Array Pathfinder. More than two decades after the SN explosion, its radio luminosity is showing a substantial re-brightening: it is no...
We consider a class of wave equations with constant damping and polynomial nonlinearities that are perturbed by small, multiplicative, space-time white noise. The equations are defined on a one-dimensional bounded interval with Dirichlet boundary conditions, continuous initial position and distributional initial velocity. In the first part of this...
The effects of hydrostatic pressure on shock wave parameters were analyzed by using a combination of experiments and numerical simulations in this paper. The functional relationship between the overpressure peak and hydrostatic pressure was established, and the functional expression between the slope of the linear change and the specific distance w...
This study explores the complex mechanisms driving flame acceleration (FA) in hydrogen/air mixtures with transverse stratification, using high-fidelity 3-D Large Eddy Simulations (LES) in a confined, obstructed channel based on the GraVent explosion setup. A systematic methodology for LES of stratified hydrogen deflagrations is presented, showing r...
Los muros de mampostería son ampliamente usados en centros urbanos. El estudio de su respuesta frente a cargas explosivas es fundamental, tanto para perfeccionar el diseño de estructuras susceptibles a estas acciones, como para desarrollar herramientas de análisis de atentados, ataques militares o accidentes industriales. La predicción de la respue...
Los muros de mampostería son ampliamente usados en centros urbanos. El estudio de su respuesta frente a cargas explosivas es fundamental, tanto para perfeccionar el diseño de estructuras susceptibles a estas acciones, como para desarrollar herramientas de análisis de atentados, ataques militares o accidentes industriales. La predicción de la respue...
Since the explosion in popularity of ChatGPT, large language models (LLMs) have continued to impact our everyday lives. Equipped with external tools that are designed for a specific purpose (e.g., for flight booking or an alarm clock), LLM agents exercise an increasing capability to assist humans in their daily work. Although LLM agents have shown...
Early-time radioactive signals from type Ia supernovae (SNeIa) can provide important constraints on the explosion mechanism and the progenitor system. We investigate whether shock ignition models of Chandresehkar-mass carbon oxygen white dwarf stars in the SD WD-He star scenario can account for observed population of the Type Iax supernovae (SN Iax...
This article critically reviews 8 books that were published in the context of the ‘social explosion’ that took place in Chile in 2019. The authors show how this volcanic phenomenon could have been thought, but also over-interpreted, with little attachment to empirical data. The article provides clues about what is known (or what is thought to be kn...
In open-pit extraction of minerals emit large amounts of harmful dust fractions and gas into the atmosphere. This leads to atmospheric pollution in open pit and sanitary protection zones. The largest dust emissions are observed during blasting operations in open pits. This is especially the cases when unfavorable meteorological conditions occur, me...
Purpose: Housing and Land property development is a critical aspect of any urban living space that is undergoing rapid development. Juba is the capital of South Sudan with the largest metropolitan area and the most populated urban centre in South Sudan. Housing remains a critical element in the psychosocial wellness of human beings. Increasing rura...
The hypothesis (Galactic Explosion Hypothesis, GEH) is put forth that about every 10,000 years or so the center of our Galaxy enters an explosive phase during which it generates an outburst of cosmic rays with total particle energies on the order of 10^(57) ergs or more. These outbursts or "superwaves," composed of highly relativistic electrons and...
Normalmente se utilizan tanques metálicos cilíndricos para almacenamiento de distintos productos petroquímicos. La respuesta y el proceso de falla de los tanques de acero bajo ondas de choque producidas por explosiones externas constituyen problemas dinámicos complejos, muy rápidos, con un grado de acoplamiento importante y alta no linealidad. En e...
En el contexto peruano, el sector aeroespacial en el Perú está en constante desarrollo, por ello el proyecto JICAAT representa un avance significa-tivo en la tecnología aeroespacial peruana, con potencial para aplicaciones comerciales y cientí-ficas. Aunque el lanzamiento del JICAAT I fue de prueva, los datos obtenidos son cruciales para mejorar el...
Vibration affects the service life of engineering structures and the working accuracy of instruments, causing engineering accidents such as structural collapse and equipment explosion. Phononic crystals can effectively suppress the propagation of elastic waves within the bandgap frequency range. In this study, based on the local resonance theory, a...
Automatic license plate recognition (ALPR) technology has gained widespread use in many countries, including India. With the explosion in the number of vehicles plying over the roads in the past few years, automating the process of documenting vehicle license plates for use by law enforcement agencies and traffic management authorities has great si...
span>Electric vehicles are the trend of this decade. Frequent high-power requirements of electric vehicles, make the batteries discharge at higher C rate. Discharging at a higher C rate will lead to higher heat production leading to destruction and explosion of the battery. To optimize the charging and discharging C rates considering both safety an...
Car Gearbox explosion-related injuries are very rare but could be serious. We reported a 43-year-old female patient who sustained severe bilateral lower limb injuries following an explosion of the gearbox in her private car while waiting at a traffic signal. The patient suffered from a left open tibia shaft fracture and severely macerated soft tiss...
Burn efficiency Φ is a key for commercial feasibility of fusion power stations for inertial fusion energy, while Φ is usually lower than 30 % in the central ignition scheme of inertial confinement fusion (ICF). A recent conceptual design for a 10 MJ laser driver [Z. Sui and K. Lan, Matter Radiat. Extremes 9, 043002 (2024)] provides new room for tar...
If you don't understand the theories of physics and mathematics, ask yourself if I'm right, because others don't understand these theories either. These theories cannot be made understandable in the current, incomplete R^4 space. Einstein, Schrödinger, Heisenberg, Minkowski, Hilbert, Rieman, among others, overcomplicated the theory of mathematics a...
Analizar la reducción del capital de la tierra y cómo
esta ha sido afectada por la explosión demográfica, Describir las terminologías asociadas al cambio climático y el ambiente, Explicar los aspectos generales de las causas del cambio climático y su impacto ambiental sobre especies animales. Describir un grupo de especies animales que ha cambiado...
Extensive studies have investigated second-order singular differential equations to model various phenomena in astrophysics, reaction-diffusion processes, and electrohydrodynamics. However, finding numerical and analytical solutions for these problems with appropriate boundary conditions is challenging due to their inherent nonlinearity. Our curren...
Rapid industrialization and population explosion has led to increasing need for building construction projects to either provide shelter or for business ventures in urbanizing areas. A survey research design which made use of questionnaire to elicit relevant information from the respondents comprise the people (residents and shop owners) domiciled...
We present observations of the Type IIP supernova (SN) 2024jlf, including spectroscopy beginning just 0.7 days ($\sim$17 hours) after first light. Rapid follow-up was enabled by the new $\texttt{BTSbot-nearby}$ program, which involves autonomously triggering target-of-opportunity requests for new transients in Zwicky Transient Facility data that ar...
The first direct detection of gravitational waves in 2015 marked the beginning of a new era for the study of compact objects. Upcoming detectors, such as the Einstein Telescope, are expected to add thousands of binary coalescences to the list. However, from a theoretical perspective, our understanding of compact objects is hindered by many uncertai...
Focussing on the effect of the temporal characteristics of blast loading on rock fragmentation and damage, a self-developed constitutive model considering equivalent stress history is adopted for numerical simulation studies. Fitting and statistics of published test data on rock dynamic strength indicate that the incubation characteristic time that...
En la industria petroquímica, los tanques cilíndricos de almacenamiento de hidrocarburos pueden estar sometidos a efectos de ondas explosivas externas provenientes de detonaciones. El estado límite de pandeo dinámico de cáscaras delgadas bajo cargas asimétricas de corta duración no ha sido determinado. En este trabajo se desarrolla y propone un cri...
Context. The circumnuclear disk (CND) is presently the main supply of mass for the accretion onto the supermassive black hole (SMBH) in the Galactic Center (GC). While the accretion is relatively slow, it has been suspected that local episodic explosive events play an important role in the temporary mass inflow toward the SMBH, while also affecting...