Browse Articles

High-precision visual calibration of motion stage positioning errors using adaptive Zernike moments

Selective Nitrone Synthesis via Cascade Hydrogenative Coupling of Nitro Compounds and Aldehydes Catalyzed by Single-Atom Platinum on N,P-Doped Carbon

Docynia delavayi fruit polysaccharides alleviate DSS-induced ulcerative colitis via oxidative stress suppression in Drosophila model

Surface Functionalities, Speciation, and Strength of Brønsted Acid Sites from a ³¹ P– ¹⁰⁹ Ag NMR Tag

Temperature-dependent thermoelectric behavior of metal-doped nanoporous carbon with tailored pore structures for multilevel temperature sensing

Pure Carbon Triggers Nitrogen Reduction: The Critical Role of Spin Electrons Induced at <i>sp</i> ³ / <i>sp</i> ² Carbon Interfaces

Reply to: Lack of evidence for Initial Upper Palaeolithic attribution at Cueva Millán in Iberia’s Hinterland

Regulating Interfacial Water Distribution and Ion Transport by Rigid-Flexible Dual-Piperidinium Ionomer toward Enhanced CO ₂ Electrolysis

Total flavonoids from Ageratum conyzoides synergize with docetaxel to induce ferroptosis in prostate cancer cells via the NRF2/SLC7A11/GPX4 signaling pathway

Machine learning-based identification of medication adherence predictors in two Spanish primary care cohorts

A Vakognavine-Type Diterpenoid Alkaloid as FoxO1 Inhibitors against Rheumatoid Arthritis

Computational investigation on dynamic response of supercritical natural circulation loop under rolling motion condition

Abstract This study examines the performance of a supercritical natural circulation loop (sNCL) under rolling motion using a one-dimensional transient numerical model. Heating powers of 1000, 1250 and 1500 W are analyzed with rolling amplitudes of 5% and 15% relative to gravitational acceleration (g), and periods ranging from 4 s to 75 s. At 1000 W, the system maintains dynamic steady-state. However, at 1500 W, when the rolling frequency (0.196 Hz) matches the system’s natural frequency, large oscillations and flow reversal occur. Heater outlet temperatures fluctuate near the pseudocritical point (307.8 K), affecting buoyancy and friction forces. For the operating conditions investigated in the present study, the buoyancy parameter was observed to vary approximately between 2570 and 3100. A 4 s rolling period at 15% amplitude leads to flow reversal within 20 s, whereas longer periods (75 s) stabilize the loop. The findings highlight the importance of accounting for rolling-induced instabilities in marine sNCL applications, providing preliminary physical insights relevant to sNCL operation under dynamic gravity environments.

A robust hybrid deep learning framework for IoT intrusion detection with adaptive feature embedding and imbalance-aware optimization

M═CR ₂ (M = U, Y) Diphosphonioalkylidene and U≡O Terminal Oxo Multiple Bond Interactions Encoded in ¹³ C and ¹⁷ O Nuclear Magnetic Resonance Chemical Shift Anisotropies: Correlations of M═C Bond Order to Chemical Shift Tensors

Experimental quantification of influencing parameters on free-flow flushing efficiency in reservoirs

Correction to “Monooxygenase Activity of Indoleamine 2,3-Dioxygenase”

Prevalence and factors associated with undernutrition among preschoolers in low-income urban households in Malaysia

Principal component analysis of morphological features of the aortic arch for predicting the risk for acute type B aortic dissection

Childhood maltreatment and anger expression during adulthood: an exploration of the impact on mortality risk across 15 years

Zeolite Catalysts Prepared with Maximum Brønsted Acidity Reveal a Dominant Contribution from Inaccessible Sites