Chongqing University of Science and Technology

Propagation Laws of the Pressure Disturbance and Mathematical Model of Unstable Seepage in Water-Bearing Tight Sandstone Reservoirs

Abstract Due to their complex pore-throat networks, low permeability, and high water saturation, water-bearing tight sandstone reservoirs exhibit pronounced heterogeneity in formation pressure distribution and unclear reserve mobilization patterns. These factors hinder accurate e...

Numerical Simulation of Spatial Distribution Characteristics of Hazardous Gas Clouds from Leakage at a Hydrogen-Blended Natural Gas Distribution Station

Abstract Blending hydrogen into natural gas pipelines is widely regarded as a promising transitional pathway for large-scale H2 transport; however, it inevitably increases the risk of leaks and explosions at urban distribution stations. This computational fluid dynamics (CFD) stu...

Predictive-feedforward energy management for a hybrid agricultural machine operating in mountainous orchards

Hybrid agricultural machines in mountainous orchards operate under low-speed, high-load conditions with coupled gradient and time-varying rolling-resistance disturbances. Their power demand is therefore nonstationary and may change abruptly. Rule-based and instantaneous strategie...

Energy-saving hydrogen production coupled with PET-derived ethylene glycol oxidation: Reaction mechanisms, catalyst design, and reactor engineering

Abstract The growing accumulation of poly(ethylene terephthalate) (PET) waste and the increasing demand for clean hydrogen call for integrated electrochemical strategies. Ethylene glycol oxidation reaction (EGOR), derived from PET hydrolysis, offers a thermodynamically favorable...

Ammonium Chloride and Peroxide: A Metal‐Free Aqueous Strategy for Oxime Synthesis

A metal‐free, aqueous protocol enables the synthesis of oximes from carbonyls using NH 4 Cl and H 2 O 2 . A radical mechanism involving in situ hydroxylamine generation bypasses the use of unstable salts. Monoethanolamine (MEA) serves as an essential additive, facilitating the co...

Synthesis of Pyrroloquinazolinones via Base-Promoted Domino Reaction of 7-Vinylindoles with In Situ Formed Isocyanates from Dioxazolones

Abstract Herein, we report a novel base-promoted domino reaction between 7-vinylindoles and dioxazolones, enabling the efficient one-pot synthesis of pyrroloquinazolinone scaffolds in moderate to excellent yields (up to 95%). This transition-metal-free protocol employs readily av...

Proton-Exchange Surface Engineering Enables Air-Stable Sodium Layered Oxide Cathodes for Carbon-Neutral Energy Storage

O3-type layered oxides have emerged as one of the most promising cathode candidates for sodium-ion batteries, which are widely regarded as a key enabling technology for carbon-neutral grid-scale energy storage. However, their practical application is hindered by surface degradati...

Dual pathways controlling Mn-carbonate mineralization in redox-stratified basins: Geochemical constraints from the Ortokarnash deposit (Western Kunlun, China)

The formation of sedimentary manganese deposits—vital sources of a critical metal for green technologies—is intimately linked to redox-stratified basins, yet whether Mn-carbonates precipitate directly in anoxic water columns or form diagenetically in sediments has remained unreso...

Adaptive ADMM-based optimal power flow for distribution systems via dynamic penalty strategy

To mitigate voltage fluctuations caused by intermittent distributed generation (DG), this paper proposes a reactive power optimization strategy based on an Improved Alternating Direction Method of Multipliers (I-ADMM). The model coordinates switchable capacitor banks (SCBs), on-l...

Evaluating the impact of mainline slope on temperature distribution in a branched tunnel fire: An experimental study and theoretical model analysis

Smoke and heat transport in branched tunnel fires become more complex when an inclined mainline is subjected to longitudinal ventilation. This study conducted 1:20 reduced-scale experiments to investigate the maximum ceiling temperature rise and temperature longitudinal decay in...

Explosion characteristics of thermal runaway gases from nickel cobalt manganese (NCM) and lithium iron phosphate (LFP) batteries under elevated temperatures and pressures: Experiments and chemical kinetic analysis

This study systematically elucidates the explosion characteristics and kinetic mechanisms of gases released during thermal runaway in lithium-ion batteries with varying cathode chemistries. Experiments were conducted in a 60 L constant-volume explosion vessel for using reconstruc...

Identifying ecosystem service drivers to inform land use scenario simulation: An InVEST-PLSR-PLUS framework for the Danjiangkou Reservoir Basin, China

The Danjiangkou Reservoir Basin is the core water source of the Middle Route of China's South-to-North Water Diversion Project, yet research in this basin has largely focused on static ecosystem service (ES) assessments, leaving the drivers of ES dynamics and their future traject...

Angular and invariant-mass observables in the four-body Higgs decay $$ h\to \ell {\overline{\nu}}_{\ell }{\overline{\ell}}^{\prime }{\nu}_{\ell^{\prime }} $$

A bstract We study the angular distribution of the Higgs boson decay $$ h\to \ell {\overline{\nu}}_{\ell }{\overline{\ell}}^{\prime }{\nu}_{\ell^{\prime }} $$ h → ℓ ν ¯ ℓ ℓ ¯ ′ ν ℓ ′ with ℓ ≠ ℓ ′ . Due to the presence of two undetected neutrinos, a complete angular analysis is no...

Investigation of Extrusion Parameters Affecting 3D Print Performance of Wheat Flour and Citrus Pectin Dough

In this study, three-dimensional (3D) printed dough samples were prepared using wheat flour powder and citrus pectin. Dough formulations supplemented with 0.2 g, 0.5 g, and 0.7 g citrus pectin exhibited superior printing performance. The optimal values of compressive pressure, no...

High–Performance and Low–Power Complementary Transistors Based on Red Carbon Ribbon

Due to significant progress in architecture through the vertical stacking of negative channel metal oxide semiconductor (MOS) and positive channel MOS devices, the complementary field–effect transistor (CFET) is regarded as one of the most promising technologies for the next gene...

Constraints of Tectono-Hydrothermal Alteration on Permian Volcanic Reservoir Formation as Recorded by Fluid Inclusions

The origin of effective porosity in the Permian volcanic reservoirs of the Sichuan Basin remains poorly understood, particularly regarding the contribution of deep-sourced hydrothermal fluids. This study presents an integrated analysis of the Emeishan basalts, combining petrograp...

Understanding older adults’ sharing intention toward AI-generated health misinformation: a heuristic-systematic and health belief perspective

The rapid development of generative artificial intelligence has changed the production and presentation of health information on social media. AI-generated health misinformation has increasingly appeared on social platforms, including disease prevention and wellness advice presen...

Discovery and Biosynthesis of a Novel Acorane-Type Sesquiterpene from Rhynchosporium agropyri

Abstract Acoranes represent an important family of sesquiterpenes featuring a unique spiro[4.5]decane skeleton with remarkable structural diversity and extensive biological activities. In this study, genome mining of the plant pathogenic fungus Rhynchosporium agropyri enabled the...

Pressure-Controlled Drainage Strategy for Deep Coalbed Methane Wells Considering Stress Sensitivity

China’s deep coalbed methane (CBM) resources hold significant development potential, yet their commercial exploitation remains hindered by four interrelated reservoir challenges: substantial burial depth, elevated in situ stress, ultra-low matrix permeability, and pronounced stre...

The framework of Large Mathematical Logic Model (LMLM): Gibbs sampling-based restricted Boltzmann machines for financial engineering

This paper gives a mathematical account of Gibbs sampling, the classical Boltzmann Machine (BM), and the efficiency breakthrough of the Restricted Boltzmann Machine (RBM), tracing the Markov Chain Monte Carlo lineage from Metropolis–Hastings to coordinate-wise sampling and derivi...