Results 11 to 20 of about 5,987,539 (157)
Auto-focus technology and its application based on image processing [PDF]
, 2009 Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
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Kongjian kexue xuebao, 2023 天文暂现源携带了关于天体本质及演化过程的丰富信息，对暂现源进行探测与研究具有极为重要的科学价值。天文暂现源的辐射峰值大多在X射线或伽马射线，天基望远镜对这些高能波段的观测优势是地基望远镜无法比拟的，更适合于暂现源观测。但由于星载计算机的性能约束，很难实现依托于地面强大算力的复杂检测算法。针对以上问题，提出了基于轻量化卷积神经网络（CNN）模型的天基暂现源检测算法，并在嵌入式ARM平台上实现了模型部署。实验结果表明，本文提出的轻量化CNN暂现源检测算法的模型复杂度和计算量不及Deep Hits算法的1/4，
李 晓斌 +3 more
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Journal of Diabetes, Volume 15, Issue 12, Page 1020-1028, December 2023., 2023 Highlights Childhood obesity was significantly associated with the increased risk of insulin resistance (IR). There were 12 metabolites co‐associated with childhood obesity and IR, including seven amino acid and five fatty acid metabolites. The combination of body mass index standard deviation score and key metabolites could effectively predict the ...
Wu Yan +5 more
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Zhejiang Daxue xuebao. Lixue ban, 2005 给定一组数据点{（xi，yi，f（xi，yi）}（i = 1，2，…，n;j = 1，2，…，m）构造一类由双二次样条函数生成的保形拟插值，1≤k≤n,1≤l≤m，证明了σ(x，y）具有线性再生性，并且保持原有数据点的单调性和凸性等一系列保形性质.在计算机辅助几何设计和曲线曲面造型技术中利用这一性质设计和构造曲线或者曲面是相当便利的.
XUJian-hua(徐建华) +1 more
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Journal of Diabetes, Volume 15, Issue 8, Page 685-698, August 2023., 2023 Highlights Vascular complication is one of the most important causes of death in diabetes patients. Arterial stiffness plays a key role in the progress of diabetes vascular complication; therefore, the improvement of arterial stiffness could inhibit the process of atherosclerosis and reduce the burden of diabetes vascular complications This study first
Jincheng Wang +14 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Developing electrode materials with high capacity and outstanding activity is essential for energy storage and conversion technologies. However, integrating multiple functions into a single material remains challenging. Herein, we synthesized a novel CoP@NiCo layered double hydroxide (CoP@NiCo‐LDH) nano‐electrode using hydrothermal and ...
Ruiyu Li +9 more
wiley +1 more source
Gaoya dianqi, 2020 GIS母线较长或安装错位时,会出现母线不对中现象。这种机械故障会导致GIS导杆受力不平衡,引起机械振动。文中通过有限元仿真的方法,建立单相GIS母线模型,并施加正弦载荷模拟不对中故障激励,探究其振动特性。采用有限元软件对母线模型进行计算模态分析,得到结构的固有频率和振型。通过分析母线外壳X、Y、Z方向振动加速度以及总加速度时域图和频谱图,获得各个方向上振动的频谱特征,总结自由状态下和约束条件下母线外壳的传播特性。
卞超, 张正东, 赵科, 树婷
doaj
Insights Into the Temperature‐Dependent Oxidation Mechanism of Metallic Cerium in H2O‐N2 Atmospheres
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Metallic cerium (Ce), a widely used surrogate for actinide metals, enables mechanistic studies of reactions in complex gas environments under controlled and safer laboratory conditions. Here, the oxidation behavior of Ce in H2O‐N2 mixed atmospheres was investigated from 200°C to 350°C using in situ thermogravimetry–mass spectrometry, in situ X‐
Kun Huang +10 more
wiley +1 more source
多层螺旋CT在诊断肺小结节及早期肺癌的价值及其与病理结果对比分析
Zhongguo shiyan zhenduanxue, 2021 原发性肺癌是一种常见的癌症,也是癌症死亡的主要原因[1]。据统计,2009-2015年间肺癌5年整体生存率仅为19.4%,而明确诊断的肺癌中有57%发生了远处转移[2]。因此,尽早对肺癌实现早期诊断,对改善患者预后尤为重要。随着计算机X线断层扫描技术的发展和应用,多层螺旋CT(MSCT)在肺部疾病诊断中取得了重大突破[3]。MSCT是一种简捷、无创的检查方法,通过实施多方位、全方面的扫描,在不降低空间分辨率的情况下,
李辉, 胡树志, 李首崇
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