195 research outputs found
Thermo-plastic finite element analysis for metal honeycomb structure
This paper deals with thermal-plastic analysis for the metal honeycomb
structure. The heat transfer equation and thermal elastoplastic constitutive
equation of a multilayer panel are established and studied numerically using
ANSYS software. The paper elucidates that only the outer skin produces easily
plastic deformation, and the outer skin still exists some residual stress and
residual deformation after cooling. The dynamic evolution of plastic
deformation and material performance degradation under high energy thermal
load are revealed
Interactive Humanoid: Online Full-Body Motion Reaction Synthesis with Social Affordance Canonicalization and Forecasting
We focus on the human-humanoid interaction task optionally with an object. We
propose a new task named online full-body motion reaction synthesis, which
generates humanoid reactions based on the human actor's motions. The previous
work only focuses on human interaction without objects and generates body
reactions without hand. Besides, they also do not consider the task as an
online setting, which means the inability to observe information beyond the
current moment in practical situations. To support this task, we construct two
datasets named HHI and CoChair and propose a unified method. Specifically, we
propose to construct a social affordance representation. We first select a
social affordance carrier and use SE(3)-Equivariant Neural Networks to learn
the local frame for the carrier, then we canonicalize the social affordance.
Besides, we propose a social affordance forecasting scheme to enable the
reactor to predict based on the imagined future. Experiments demonstrate that
our approach can effectively generate high-quality reactions on HHI and
CoChair. Furthermore, we also validate our method on existing human interaction
datasets Interhuman and Chi3D
The Expanded Electrodeionization Method for Sewage Reclamation
The aim of the chapter is to introduce a new technology using the flow-divided electrodes for sewage reclamation based on redox and concentrating ions. This creative system can be used directly for sewage treatment without the need for costly ion-exchange membranes and other chemical reagents. Under experimental conditions, the removal percentage of TDS (total dissolved salts) is 83 %and the removal percentage of COD (chemical oxygen demand) is 92 %
CrossVideo: Self-supervised Cross-modal Contrastive Learning for Point Cloud Video Understanding
This paper introduces a novel approach named CrossVideo, which aims to
enhance self-supervised cross-modal contrastive learning in the field of point
cloud video understanding. Traditional supervised learning methods encounter
limitations due to data scarcity and challenges in label acquisition. To
address these issues, we propose a self-supervised learning method that
leverages the cross-modal relationship between point cloud videos and image
videos to acquire meaningful feature representations. Intra-modal and
cross-modal contrastive learning techniques are employed to facilitate
effective comprehension of point cloud video. We also propose a multi-level
contrastive approach for both modalities. Through extensive experiments, we
demonstrate that our method significantly surpasses previous state-of-the-art
approaches, and we conduct comprehensive ablation studies to validate the
effectiveness of our proposed designs
Clinical efficacy of Danshen preparation in the treatment of vascular cognitive impairment: A systematic review and meta-analysis
Ethnopharmacological relevanceDanshen preparations are widely used in the treatment of ischaemic cerebrovascular disease. However, the clinical efficacy of such preparations remains unclear. Consequently, Danshen preparations are used to a lesser extent in vascular cognitive impairment (VCI).Aim of the studyIn this study, we aimed to systematically assess the clinical efficacy and safety of Danshen preparations in VCI. To this end, we examined and performed a meta-analysis (MA) of the evidence available from randomised controlled trials (RCTs) of Danshen preparations conducted in patients with VCI.MethodsWe queried the following sources and collected all articles reporting on RCTs of Danshen preparations published prior to December 2021: PubMed, China National Knowledge Infrastructure (CNKI), Wanfang Data, Chongqing VIP Database (CQVIP), and China Biology Medicine (CBM) disc databases. The assessment of treatments that were included in references were performed by RevMan 5.2 software based on guidelines from Cochrane Handbook for Systematic Reviews of Interventions.ResultsWe included a total of 12 RCTs that included data on clinical therapeutic effects. The evaluation criteria included the following: National Institutes of Health Stroke Scale (NIHSS), modified Rankin Scale (mRS), Barthel Index (BI), Mini-Mental State Assessment (MMSE), Montreal Cognitive Assessment (MOCA), Activities of Daily Living Scale (ADL), treatment effect index, and incidence of adverse reaction index. In the included studies, the observation groups included 656 cases and the control groups included 660 cases. The results of the MA were as follows: the mean difference (MD) value after combining the effect size for NIHSS was β2.91, with a 95% confidence interval (CI) of β4.22 to β1.59; the combined effect quantity hypothesis test revealed that Zβ=β4.33 (pβ<β0.00001), indicating that the score pertaining to the degree of neurological deficit (NIHSS) in the observation group after treatment was significantly lower than that in the control group. This result reveals that treatment with a Danshen preparation can reduce neurological deficit in VCI patients. The MD value after combining the effect size for mRS was β0.73, with a 95% CI of β0.85 to β0.61; the result of the combined effect quantity hypothesis test revealed that Zβ=β12.29 (pβ<β0.00001). These results indicate that the degree of disability was significantly reduced after treatment in the observation group. The MD value after combining the effect size for MMSE was 2.09, with a 95% CI of 0.33β3.84; the result of the combined effect quantity hypothesis test showed that Zβ=β2.33 (pβ=β0.02). These results indicate that the cognitive function score (MMSE) of the observation group after treatment was significantly higher than that of the control group and suggests that the cognitive function of VCI patients was improved after treatment with Danshen preparations. The MD value after combining the effect size for ADL was 8.79, with a 95% CI of 3.52 to 14.06; the result of the combined effect quantity hypothesis test indicated that Zβ=β3.27 (pβ=β0.001). These results showed that the life ability (ADL scale) scores of patients in the observation group after treatment were significantly higher than those in the control group, and reveals that after treatment with Danshen preparations, patients exhibited significant improvement in life ability. The MD value after combining the effect size for high-sensitivity C-reactive protein (hs-CRP) was β3.21, with a 95% CI of β4.21 to β2.22; the result of the combined effect quantity hypothesis test showed that Zβ=β6.31 (pβ<β0.00001), indicating that the hs-CRP level in the observation group was significantly decreased after treatment. The MD value after combining the effect size for interleukin (IL)-6 was β2.95, with a 95% CI of β3.86 to β2.04; the result of the combined effect quantity hypothesis test showed that Zβ=β6.36 (pβ<β0.00001). These results showed that the IL-6 level in the observation group was significantly decreased after treatment.ConclusionThe existing clinical evidence shows that Danshen preparations exert significant therapeutic effects on VCI patients and can ameliorate inflammatory conditions in these patients. In addition, Danshen preparations are relatively safe
Computations of height higher Real -theory spectra at prime
We completely compute the -homotopy fixed point spectral sequences at
prime for the height Lubin-Tate theory , in the case of finite
subgroups of the Morava stabilizer group for and
. Our computation uses recently developed equivariant techniques since
Hill-Hopkins-Ravenel. We also compute the -graded - and
-homotopy fixed point spectral sequences where is a
non-trivial one dimensional -representation.Comment: 48 pages, comments welcome
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