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关键词： CAM   CLIP   Image-level labels   WSSS  

摘要： Weakly supervised semantic segmentation (WSSS) using image-level labels aims to create pseudo-labels leveraging Class Activation Maps (CAM) to train a separate segmentation model. Recent methods that utilize Contrastive Language-Image Pre-training (CLIP) models have achieved significant advancements. These approaches take advantage of CLIP’s capability to identify various categories without requiring additional training. However, due to the limited local information of the final embedding layer, the CAM generated by the CLIP model is still a rough region with an under-activated or over-activated issue. Furthermore, the abundant multi-layer information of CLIP, which plays a vital role in dense prediction, has been ignored. In this paper, we proposed a LayerCLIP model for a fine-grained CAM generation via hierarchical features, which consists of two consecutive components: a dynamic hierarchical CAMs module and an adaptive affinity module. Specifically, the dynamic hierarchical CAMs module utilizes the hierarchical features to produce two complementary CAMs, along with a dynamic strategy to fuse these CAMs. Subsequently, the affinity based on multi-head self-attention is adaptively reweighted to refine CAM by the CAM itself in the adaptive affinity module. LayerCLIP significantly enhances the quality of CAM. Our method achieves a new state-of-the-art performance on PASCAL VOC 2012 (75.1 % mIoU) and MS COCO 2014 (46.9 % mIoU) through extensive benchmark experiments.

关键词： Custom-made bone regeneration   CAD/CAM   surgery  

摘要： To investigate the clinical application of customized CAD/CAM coral hydroxyapatite block.

关键词： Account-level controls   Critical audit matters   Entity-level controls   Financial reporting quality   Internal control material weaknesses   Internal control quality  

摘要： We examine whether critical audit matter (CAM) reporting improves internal controls over financial reporting. We propose that CAM reporting improves internal control quality. This is because CAM reporting incentivizes early identification and communication of internal control issues among auditors, management, and audit committees, and increases their attention and effort in high-risk CAM areas. We find that, compared to control companies, companies that implement CAM reporting experience a significant decrease in the likelihood of internal control material weaknesses (ICMWs), and the improvement in internal control quality is primarily at account-level rather than entity-level controls. We also find that CAM reporting significantly lowers the likelihood of accounting misstatements. Cross-sectional analyses suggest that the benefit of CAM reporting on internal control quality depends on audit committee quality and auditor effort. The survey results of audit partners and CFOs provide further support for our theory.

关键词： Inflammation   Coronary artery disease   Depression   Group psychotherapy   Comorbidities   BMI   Body-Mass-Index   CAD   Coronary Artery Disease   CI   Confidence Interval   HADS-D   Hospital Anxiety and Depression Scale (German version)   HAM-D   Hamilton Depression Rating Scale   hsCRP   High-sensitive C-reactive protein   IFS   Inflammatory factors score   IL-6   Interleukin-6   NYHA   New York Heart Association   OR   Odds Ratio   SF-36   Short-Form-36 Health Survey   SF-36 MCS   Short-Form-36 Health Survey-Mental Component Summary Score   SF-36 PCS   Short-Form-36 Health Survey-Physical Component Summary Score   SPIRR-CAD   Stepwise Psychotherapy Intervention to Reduce Risk in Coronary Artery Disease   TNF-α   Tumor necrosis Factor-α  

摘要： Inflammation contributes to the bidirectional relationship between depression and coronary artery disease (CAD). However, the impact of group psychotherapy on inflammatory levels in CAD patients with comorbid depression has not been elucidated.

关键词： Experimentation   Numerical analysis   Piston engine   SRC (steam Rankine cycle)  

摘要： Piston engines can be potentially applied to distributed power generation systems due to simple structure, high power density, and compact size. This paper proposes and experimentally verifies a compact piston engine for steam Rankine cycle system. The mathematical model of the in-cylinder thermodynamic process and the valve timing model of the piston cam engine are established. In addition, the numerical model is then established to accurately predict the engine performance. Finally, a prototype of the cam engine was made and the experimental equipment and methods were introduced. In the experiment, a power output of 16.28 kW was achieved, with a three-dimensional computational result error of 8.04% and a mathematical result error of 4.91%. The comparison indicates that the theoretical and measured values show good consistency. This paper provides insight into a novel cam position engine for distributed energy systems and industrial waste heat recovery.

关键词： CAD/CAM个性化基台   成品基台   游离端缺失   食物嵌塞  

摘要： 目的:通过回顾性研究比较CAD/CAM个性化基台与成品基台在游离端缺失患者种植治疗中的临床效果。方法:回顾2017年3月至2019年3月在我科完成的114例游离端缺失的牙列缺损患者,共184颗骨水平种植体,基台与种植体平台转移式连接。其中50例患者,79颗种植体用CAD/CAM个性化基台完成种植修复(实验组);64例患者,105颗种植体用成品基台完成种植修复(对照组)。修复完成后3年随访两组患者,比较边缘骨吸收、龈乳头高度恢复量、龈乳头指数、患者主观食物嵌塞情况。结果:实验组的种植体近中边缘骨吸收量平均(0.56±0.08)mm,远中边缘骨吸收量平均(0.55±0.07)mm;对照组近中边缘骨吸收量平均(0.55±0.08)mm,远中边缘骨吸收量平均(0.56±0.07)mm,两者差异无统计学意义(近中P=0.260,远中P=0.548)。实验组牙龈高度恢复量平均(1.00±0.09)mm,而对照组平均(0.77±0.08)mm,两者差异有统计学意义(P<0.05)。实验组共17例出现食物嵌塞,占比34.00%,对照组共38例出现食物嵌塞,占比59.38%,差异具有统计学意义(P<0.05)。实验组牙龈形态良好的患者(PIS2-3)比例较对照组高,差异具有统计学意义(P<0.05)。结论:在游离端牙列缺损种植修复患者中应用CAD/CAM个性化基台和成品基台对种植体负重后的边缘骨吸收没有明显影响,但使用CAD/CAM个性化基台完成种植修复短期内有助于恢复牙龈高度,减少食物嵌塞的发生。

关键词： Peg-shaped maxillary lateral incisors   Microdontia   Lithium disilicate ceramics   Minimally-invasive dental restorations   Digital dentistry   Computer-aided design/computer-assisted manufacturing (CAD/CAM)   Survival   Complications   CAD   computer-aided-design   CDA   California Dental association   CAD/CAM   computer-aided design/computer-assisted manufacturing   3D   three-dimensionally   CI   confidence interval  

摘要： To evaluate the medium-term clinical performance of digitally planned and fabricated minimally invasive lithium disilicate restorations veneered with feldspathic porcelain for the treatment of peg-shaped maxillary lateral incisors.

关键词： Partial ceramic crown   Long-term   CEREC   Universal adhesive   Self-adhesive resin cement  

摘要： This study evaluated the long-term clinical performance and survival of CAD-CAM-fabricated partial ceramic crowns (PCCs) luted with either self-adhesive resin cement, or conventional luting composite combined with a universal adhesive, applied without or with selective enamel etching.

关键词： Delirium   Intensive care units   Nursing   Sensitivity and specificity   Clinical assessment tools  

摘要： To analyse the agreement between NU-DESC and CAM-ICU scales in detecting hyperactive and hypoactive delirium in adult patients at a tertiary hospital, testing the alternative hypothesis (HA) of significant concordance.

关键词： Manganese   Circular economy   Cathode active material   CAM   LIB recycling  

摘要： Manganese control is a crucial step in lithium-ion battery (LIB) recycling processes. Older cathode active materials (CAM) have manganese concentrations excessively high for modern high‑nickel cathode active materials. This study explores the use of the cathode active materials' oxidative properties for manganese removal during the leaching process utilizing synthetic solutions. Furthermore, delithiated cathode material was utilized to facilitate manganese removal from the NCM622 leachate. Preliminary experiments involved leaching various cathode materials in sulfuric acid without the addition of common reducing agent, such as H₂O₂. Results indicated that 35–50 wt-% of the transition metals could be leached from the cathode material in the absence of a reducing agent. Additionally, after approximately 90 wt-% of the lithium had been removed, manganese was effectively employed as a reducing agent for nickel and cobalt. A carefully controlled initial concentration of manganese sulfate achieved >99% leaching yield of Ni and Co, while precipitating MnO₂ with nickel and cobalt impurities below 1 wt-%. Moreover, Ni-rich cathode materials were successfully utilized to control Mn in the NMC622 recycling solution. Manganese removal efficiency was also studied using delithiated cathode materials at different lithium yields. Manganese removal yield was lower, if over 80% delithiation yield was obtained in separate delithiation reaction.