Results 31 to 40 of about 102,206 (259)
Safe vibration velocity of directly buried pressure pipeline under blasting P wave
工程科学学报, 2022 With the continuous development of urban underground space in China, safety problems between urban underground pipelines and underground engineering construction that are in active service are constantly emerging.
Bin ZHU +4 more
doaj +1 more source
Semiempirical Correlation between P-Wave Velocity and Thermal Conductivity of Frozen Silty Clay Soil
Shock and Vibration, 2021 In this study, the thermal conductivity and P-wave velocity of silty clay soil with different water contents are investigated through experiments at different temperatures, and a theoretical correlation between thermal conductivity and wave velocity is ...
Yadong Ji +6 more
doaj +1 more source
Frontiers in Earth Science, 2022 A multichannel seismic survey was conducted to investigate the geophysical characteristics of gas hydrates along the western continental margin of the Chukchi Rise around an ARAON mound cluster, which was first recovered in 2016. In the seismic data, gas
Yeonjin Choi +7 more
doaj +1 more source
Multidimensional Profiling of MRI‐Negative Temporal Lobe Epilepsy Uncovers Distinct Phenotypes
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Although hippocampal sclerosis (TLE‐HS) represents the most frequent cause of temporal lobe epilepsy (TLE), up to 30% of patients show no lesion on visual MRI inspection (TLE‐MRIneg). These cases pose diagnostic and therapeutic challenges and are underrepresented in surgical series.
Alice Ballerini +28 more
wiley +1 more source
SPATIAL VELOCITY ELECTROCARDIOGRAM OF THE P WAVE IN NORMAL SUBJECTS
Japanese Circulation Journal, 1973 The spatial velocity electrocardiogram (SVECG) was recorded in 61 subjects of normal men by the spatial velocity electrocardiograph manufactured by Mori et al. using Frank system simultaneously recorded with its scalar ECG's. Atrial component of the SVECG was analyzed quantitatively as well as qualitatively. The normal atrial SVECG is composed of three
openaire +3 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To characterize the demographic, clinical, and laboratory features of the Chinese patients of genetic Creutzfeldt‐Jakob disease with T188K variant (T188K‐gCJD), the most common subtype of genetic prion diseases (gPrDs) in China. Methods In this nationwide retrospective study, data from 98 genetically confirmed T188K‐gCJD patients ...
Chun‐Jie Li +11 more
wiley +1 more source
Influence of Stress Anisotropy on Petrophysical Parameters of Deep and Ultradeep Tight Sandstone
Applied Sciences, 2022 Rock mechanics parameters control the distribution of in situ stress and natural fractures, which is the key to sweet spot evaluation in reservoir engineering.
Hui Zhang +8 more
doaj +1 more source
SPATIAL VELOCITY ELECTROCARDIOGRAM OF THE P WAVE IN ATRIAL OVERLOAD
Japanese Circulation Journal, 1973 The SVECG was recorded in grand total of 119 cases with mitral stenosis in 35 cases, atrial septal defect in 51 cases, tetralogy of Fallot in 22 cases and pulmonary stenosis in 11 cases, and the correlation with hemodynamic data in 107 cases and operation findings in 78 cases was investigated.
openaire +3 more sources
Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source