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自动化技术:阀门行业的创新驱动力

流程工业 2024年第7期 20-21页

作者： dominik Stephan 《PROCESS》

目前很多自动化企业业绩增长不错,然而另一方面,阀门等流体设备制造商的经营情况则不容乐观。尤其面对激烈的市场竞争、能源紧缺及复杂多变的供应链挑战,不少阀门等设备制造商越发感到压力。尽管如此,自动化技术或许能使流体控制设备行... 详细信息

目前很多自动化企业业绩增长不错,然而另一方面,阀门等流体设备制造商的经营情况则不容乐观。尤其面对激烈的市场竞争、能源紧缺及复杂多变的供应链挑战,不少阀门等设备制造商越发感到压力。尽管如此,自动化技术或许能使流体控制设备行业突破目前的市场困境。

关键词：自动化技术市场困境创新驱动力供应链流体控制市场竞争设备制造商企业业绩增长

基于深度学习重建和传统TSE序列在直肠癌磁共振检查的对比研究

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磁共振成像 2024年

作者：胡思洁范文文滕泽刘侃童晓婉江岳娈刘鹏郎宇 Nickel Marcel dominik 张红梅国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院北京协和医学院肿瘤医院影像诊断科西门子医疗系统有限公司北京分公司西门子医疗系统有限公司

目的评估深度学习重建（deep learning reconstruction, DL Recon）技术在提高直肠MRI快速自旋回波序列（turbo spin-echo, TSE）图像质量的价值。材料与方法前瞻性纳入2023年9月至2024年1月中国医学科学院肿瘤医院病理诊断为直肠癌... 详细信息

目的评估深度学习重建（deep learning reconstruction, DL Recon）技术在提高直肠MRI快速自旋回波序列（turbo spin-echo, TSE）图像质量的价值。材料与方法前瞻性纳入2023年9月至2024年1月中国医学科学院肿瘤医院病理诊断为直肠癌的初诊患者60例，对每位患者进行临床传统TSE序列及应用DL Recon技术的TSE序列（deep learning reconstruction-TSE,DL-TSE）扫描，并记录扫描时间，由两名影像科医师分别对两组图像（传统TSE、DL-TSE）的图像质量进行主观评价，采用“五分法”分别对病灶轮廓清晰度，图像伪影，病灶结构清晰度以及诊断信心进行评分；由两名影像科技师进行客观评价，分别计算DL-TSE和传统TSE图像的病灶信噪比（signal-to-noiseratio,SNR）以及病灶区域与周边组织的对比噪声比（contrast-to-noise ratio, CNR），采用配对样本t检验或配对样本非参数检验（Wilcoxon符号轶检验）进行统计学分析。结果图像主观评价显示DL-TSE序列的病灶轮廓清晰度、图像伪影、病灶结构清晰度以及诊断信心的主观评分得分均优于传统TSE序列，且差异具有统计学意义（P<0.001）。图像客观评价显示DL-TSE序列和传统TSE序列的SNR分别为24.26(15.95, 42.79)、11.84(7.63, 18.88)，差异有统计学意义（Z=-14.276,P<0.001）;DL-TSE序列和传统TSE序列CNR分别为10.75(7.19, 15.63),5.47(3.72, 8.86)，且差异有统计学意义（Z=-14.271,P<0.001）。DL-TSE序列的SNR及CNR相较于传统TSE序列均有明显提升。结论 DL-TSE序列通过采用原始K空间数据DL Recon算法，在保证图像质量和病变可检测性的情况下，可提升直肠癌患者序列图像SNR及CNR，并且可缩短36.6%扫描时间。

关键词：直肠癌信噪比对比噪声比深度学习重建磁共振成像

视黄醇-PPARs受体和纳米载体技术的应用研究

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日用化学品科学 2024年第5期47卷 69-76页

作者：徐冬席淑云陈斌 dominik Imfeld Leithe Budel 陈临婧上海百雀羚生物科技有限公司上海200000 帝斯曼-芬美意个人护理及香原料巴塞尔CH-4000

为改善视黄醇(Retinol)的皮肤刺激性和稳定性问题,通过Retinol和10-羟基硬脂酸(10-HAS)的组合以及纳米载体技术,制备得到了粒径大小约75 nm的视黄醇组合物纳米载体ProVA,对比研究了纳米载体在胶原蛋白数量方面的提升效果,并对ProVA的稳... 详细信息

为改善视黄醇(Retinol)的皮肤刺激性和稳定性问题,通过Retinol和10-羟基硬脂酸(10-HAS)的组合以及纳米载体技术,制备得到了粒径大小约75 nm的视黄醇组合物纳米载体ProVA,对比研究了纳米载体在胶原蛋白数量方面的提升效果,并对ProVA的稳定性能进行了考察研究。结果表明,ProVA具有优良的耐热稳定性能,在皮肤重复性开放型涂抹试验中未发现皮肤不良反应;其次,ProVA在视黄醇增效方面,通过体外细胞共培养模型论证了ProVA纳米载体较Retinol有明显的增效作用;在离体皮肤实验中,也进一步证明了ProVA对于UVB辐射造成的皮肤Ⅰ和Ⅲ型胶原蛋白流失有较好的回复效果;32位30~65岁有明显皱纹女性在日用添加量为0.2%ProVA的百雀羚帧颜淡纹修护精华霜后,可有效淡化细纹和皱纹,增强皮肤紧致度和弹性。以上表明ProVA为日化产品中理想的抗老原料,应用前景广阔。

关键词：视黄醇过氧化氢酶体增殖物激活受体协同增效纳米载体技术

Multimodal Integration Processes in Plan-Based Service Robot Control

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Tsinghua Science and Technology 2011年第1期16卷 1-6页

作者： dominik Off TAMS Department of InformaticsUniversity of Hamburg

Cross-modal integration processes are essential for service robots to reliably perceive relevant parts of the partially known unstructured environment, We demonstrate how multimodal integration on different abstraction levels leads to reasonable behavior that would be difficult to achieve with unimodal approaches. Sensing and acting modalities are composed to multimodal robot skills via a fuzzy multisensor fusion approach. Single modalities constitute basic robot skills that can dynamically be composed to appropriate behavior by symbolic planning. Furthermore, multimodal integration is exploited to answer relevant queries about the partially known environment. All these approaches are successfully implemented and tested on our mobile service robot platform TASER,

关键词： service robotic multimodal integration plan-based robot control

A High-Order Discontinuous Galerkin Solver for Helically Symmetric Flows

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Communications in Computational Physics 2021年第6期30卷 288-320页

作者： dominik Dierkes Florian Kummer dominik Plumacher Department of Mechanical Engineering Technische Universitat DarmstadtOtto-Berndt-Straße 264287 DarmstadtGermany

We present a high-order discontinuous Galerkin(DG)scheme to solve the system of helically symmetric Navier-Stokes equations which are discussed in[28].In particular,we discretize the helically reduced Navier-Stokes equations emerging from a reduction of the independent variables such that the remaining variables are:t,r,ξwithξ=az+bϕ,where r,ϕ,z are common cylindrical coordinates and t the *** this,all three velocity components are kept non-zero.A new non-singular coordinateηis introduced which ensures that a mapping of helical solutions into the three-dimensional space is well *** that,periodicity conditions for the helical frame aswell as uniqueness conditions at the centerline axis r=0 are *** the sector near the axis of the computational domain a change of the polynomial basis is implemented such that all physical quantities are uniquely defined at the *** the temporal integration,we present a semi-explicit scheme of third order where the full spatial operator is splitted into a Stokes operator which is discretized implicitly and an operator for the nonlinear terms which is treated *** are conducted for a cylindrical shell,excluding the centerline axis,and for the full cylindrical domain,where the centerline is *** all cases we obtain the convergence rates of order O(hk+1)that are expected from DG *** addition to the first DG discretization of the system of helically invariant Navier-Stokes equations,the treatment of the central axis,the resulting reduction of the DG space,and the simultaneous use of a semi-explicit time stepper are of particular novelty.

关键词： Discontinuous Galerkin(DG) helical flows

Predicting Future Rumours

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Chinese Journal of Electronics 2018年第3期27卷 514-520页

作者： QIN Yumeng dominik Wurzer TANG Cunchen School of Computer Science (International School of Software) Wuhan University School of Information Management Wuhan University

Recent uproar of fake news and misinformation on social media platforms has sparked the interest in the scientific community to automatically detect and refute them. The most popular research task to counteract misinformation, Rumour detection, requires repeated signals to reach adequate detection accurate. Consequently,rumour detection recognizes rumours only when they have started spreading and causing harm. We introduce a new task called "rumour prediction" that assesses the possibility of a document arriving from a social media stream becoming a rumour in the future. Note that rumour prediction differentiates itself from rumour detection through instant decision making. This allows refuting misinformation before it spreads and causes harm. Our approach to rumour prediction harnesses content based features in combination with novelty based features and pseudo *** experiments show that we are able to accurately predict, whether a document will become a rumour in the future. Additionally, we show how rumour prediction can significantly improve the accuracy of state-of-the-art Rumour detection systems.

关键词： Real-time rumour prediction Social media Data stream Information retrieval K-term hashing Pseudo feedback

Predetermination of potential plastic hinges on reinforced concrete frames using GFRP reinforcement

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Frontiers of Structural and Civil Engineering 2022年第5期16卷 624-637页

作者： dominik KUERES Dritan TOPUZI Maria Anna POLAK Department of Civil and Environmental Engineering University of WaterlooWaterlooON N2L 3G1Canada Schoeck Canada Inc. OttawaON K1P 5G3Canada

In the past,glass fiber-reinforced polymer(GFRP)-reinforcement has been successfully applied in reinforced concrete(RC)structures where corrosion resistance,electromagnetic neutrality,or cuttability were *** investigations suggest that the application of GFRP in RC structures could be advantageous in areas with seismic activity due to their high deformability and ***,especially the low modulus of elasticity of GFRP limited its wide application as GFRP-reinforced members usually exhibit considerably larger deformations under service loads than comparable steel-reinforced *** overcome the aforementioned issues,the combination of steel and GFRP reinforcement in hybrid RC sections has been investigated in the *** on this idea,this paper presents a novel concept for the predetermination of potential plastic hinges in RC frames using GFRP *** analyze the efficiency of the concept,nonlinear finite element simulations were *** results underscore the high efficiency of hybrid steel-GFRP RC sections for predetermining potential plastic hinges on RC *** results also indicate that the overall seismic behavior of RC structures could be improved by means of GFRP as both the column base shear force during the seismic activity as well as the plastic deformations after the earthquake were considerably less pronounced than in the steel-reinforced reference structure.

关键词： glass fiber-reinforced polymer GFRP hybrid section plastic hinge seismic design reinforced concrete

Guardians of the eye:new tales about retinal microglia and other ocular macrophages

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Neural Regeneration Research 2022年第6期17卷 1275-1277页

作者： Dennis-dominik Rosmus Peter Wieghofer Institute of Anatomy Leipzig UniversityLeipzigGermany

Macrophages are highly versatile and plastic immune cells that are localized in nearly all organs of the body and contribute to a plethora of physiological and pathological processes in *** their roles as major players in the“first line of defense”under inflammatory conditions,macrophages are known to participate in tissue homeostasis maintenance.

关键词： organs homeostasis ocular

Exploring the Characteristics of Data Breaches: A Descriptive Analytic Study

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