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Controlling the hidden parity in vectorial light with metasurfaces

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Advanced Photonics 2024年第4期6卷 5-6页

作者： Cade peters Andrew Forbes University of the Witwatersrand School of Physics

Identifying and controlling new degrees of freedom in structured light has exploded of late.1One such form of structured light is vectorial beams with spatially inhomogeneous polarization structures, already having fo... 详细信息

关键词： Polarization Structured light Design Quantum light Birefringence Holograms Quantum communications Quantum control Quantum information Resonators

Experimental and numerical investigation of iron ore pellet firing using coupled CFD-DEM method

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PARTICUOLOGY 2024年第10期93卷 75-86页

作者： Amani, Hafez Alamdari, Eskandar Keshavarz Moraveji, Mostafa Keshavarz peters, Bernhard Amirkabir Univ Technol Sch Mat Engn & Adv Proc 424 Hafez Ave Tehran 158754413 Iran Univ Luxembourg Fac Sci Technol & Med Campus Kirchberg 6Rue Coudenhove Kalergi L-1359 Kirchberg Luxembourg

Iron ore pellets are the main feedstock in ironmaking processes. While extensive research has addressed numerical modeling of the iron ore pellet induration process, little effort has been made to describe the intricate thermochemical processes occurring within the reactor starting from the pellet and particularly at the intra-particle scale. In this regard, discrete-continuous methods like CFD-DEM can generate more realistic, irregular particle assemblies, which leads to significantly more accurate predictions of voidage variation, wall effects, temperature distribution, and associated mass transfer phenomena. This study presents a numerical model based on computational fluid dynamics (CFD) coupled with the discrete element method (DEM) to simulate the thermal induration process of iron ore pellets. The presented model solving heat, mass, and momentum conservation equations for both continuous and discrete phases, provides detailed information on the thermochemical aspects of the process. Pilot-scale induration experiment was conducted to validate model predictions in terms of thermal history and final conversion fraction. It was found that inlet charge specifications, such as particle and pellet size, significantly impact the productivity of pelletizing plants, highlighting the potential of the presented model to optimize the process and improve plant productivity. (c) 2024 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

关键词： CFD-DEM Heat and mass transfer Iron ore pellets Powder and pellet size Modeling INDURATION PROCESS MATHEMATICAL-MODEL HEAT-TRANSFER FLOW BED MAGNETITE MECHANISMS SIMULATION OXIDATION KILN

A theoretical framework for improved fire suppression by linking management models with smart early fire detection and suppression technologies

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Journal of Forestry Research 2024年第5期35卷 1-13页

作者： Li Meng Jim O’Hehir Jing Gao Stefan peters Anthony Hay University of South Australia AdelaideSAAustralia Esk Spatial InvermayTASAustralia

Bushfires are devastating to forest managers,owners,residents,and the natural *** tech-nological advances indicate a potential for faster response times in terms of detecting and suppressing ***,to date,all these technologies have been applied in *** paper introduces the latest fire detection and sup-pression technologies from ground to *** operations research method was used to assemble these technologies into a theoretical framework for fire detection and *** framework harnesses the advantages of satellite-based,drone,sensor,and human reporting technologies as well as image processing and artificial intelligence machine *** study concludes that,if a system is designed to maximise the use of available technologies and carefully adopts them through complementary arrangements,a fire detection and resource suppression system can achieve the ultimate aim:to reduce the risk of fire hazards and the dam-age they may cause.

关键词： Forest fire Resource suppression Smart fire detection and suppression system Forest fire management Holistic system

Heart failure with preserved ejection fraction and the first law of thermodynamics

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World Journal of Cardiology 2024年第10期16卷 608-610页

作者： Robert M peters Department of Cardiology Zucker School of MedicineHemsteadNY 11549United States

In heart failure with preserved ejection fraction,significant left ventricular diastolic abnormalities are present,despite a normal systolic ejection *** article will consider whether this is consistent with the law o... 详细信息

关键词： Diastolic dysfunction Heart failure with preserved ejection fraction Thermodynamics

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道德发展与道德教育 1

A remarkable class of elliptic surfaces of amplitude 1 in weighted projective spaces

丛书名： 20世纪国际德育理论名著文库

2000年

作者：（英）彼得斯（richard Stanley peters）邬冬星译

本书收入《弗洛伊德道德发展理论与皮亚杰道德发展理论之比较》、《道德教育与品格心理学》、《道德发展与道德学习》等文章，阐述了作者的道德哲学和道德教育理论。

ISBN: (纸本)7533832493

关键词：德育教育哲学研究

来源：汇雅图书（南通市图书馆... 评论

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Science China Mathematics 2024年

作者： Gregory Pearlstein Chris peters Wim Nijgh Department of Mathematics University of Pisa Department of Mathematics & Computer Science Technical University of Eindhoven Department of Mathematics University of Leiden

Surfaces of amplitude 1 in the ordinary projective space are of the general type, but this need not be the case in weighted projective spaces. Indeed, there are 4 classes of quasi-smooth weighted hypersurfaces in P（1, 2, a, b） of amplitude 1 with an elliptic pencil cut out by hyperplanes. Their moduli spaces are constructed,and the monodromy of their universal families is determined as well as their period maps which turn out to be generally immersive. For those that are not, a mixed Torelli theorem holds. We added an application to certain compactifications of moduli spaces of surfaces of the general type with K2= 1, pg= 2 and q = 0 as a follow up of Gallardo et al.（2022）, as well as detailed SageMath-calculations. The appendix written by Wim Nijgh shows that the general member of the types 1 and 2 elliptic family has a “trivial” Picard lattice, i.e., is spanned by fiber components and a multisection.

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垂直运输中用始发层站目的层站矩阵估计和预测

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中国电梯 2015年第6期26卷 52-55页

作者： Rosa Basagoiti Maite Beamurgia richard peters Stefan Kaczmarczyk 行武奇

1引言如果一幢大楼配备的电梯不止一台，那么，服务其中的梯群控制系统（LGCS）就可以使用关于乘客客流的详细信息，以改善系统的性能。这个信息能够改善根据乘客需求呼梯的轿厢分派情况。利用乘客到达层站和目的层站的详细信息，就可... 详细信息

1引言如果一幢大楼配备的电梯不止一台，那么，服务其中的梯群控制系统（LGCS）就可以使用关于乘客客流的详细信息，以改善系统的性能。这个信息能够改善根据乘客需求呼梯的轿厢分派情况。利用乘客到达层站和目的层站的详细信息，就可以动态地改进最优路线选择程序。有了这个信息，系统为电梯乘客提供的服务就可以大为改观。这对弄清楚大楼的需求以及改善大楼资源的管理很有帮助。举个例子，根据乘客的需求和最小服务水平，一些电梯可能会暂时出现故障或是运行异常。对此人们希望通过改善规划来增加单位时间内运送乘客的数量。本文展示了一些通过乘客始发层站目的层站技术程序得出的实证结果。

关键词：目的层垂直运输预测估计矩阵控制系统选择程序最优路线

Eight of ten patients return to daily activities, work, and sports after total knee arthroplasty

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World Journal of Orthopedics 2024年第7期15卷 608-617页

作者： Maud Cornelia Wilhelmina Maria peters Yvette Pronk Justus-Martijn Brinkman Department of Research Kliniek ViaSanaMill 5451 AANetherlands Department of Orthopedic Surgery Kliniek ViaSanaMill 5451 AANetherlands

BACKGROUND Besides return to work(RTW)and return to sports(RTS),patients also prefer to return to daily activities(RTA)such as walking,sleeping,grocery shopping,and domestic work following total knee arthroplasty(TKA).However,evidence on the timelines and probability of patients’RTA is *** To assess the percentage of patients able to RTA,RTW,and RTS after TKA,as well as the timeframe and influencing factors of this *** A retrospective cohort study with prospectively collected data was conducted at a medium-sized Dutch orthopedic *** of RTA,RTW,and RTS were performed at 3 mo and/or 6 mo following *** factors en-compassed patient characteristics,surgical characteristics,and preoperative patient-reported *** TKA patients[n=2063;66 years old(interquartile range[IQR]:7 years);47%male;28 kg/m2(IQR:4 kg/m2)]showed RTA ranging from 28%for kneeling to 94%for grocery shopping,with 20 d(IQR:27 d)spent for putting on shoes to 74 d(IQR:57 d)for *** rates varied from 62%for medium-impact work to 87%for low-impact work,taking 33 d(IQR:29 d)to 78 d(IQR:55 d).RTS ranged from 48%for medium-impact sports to 90%for low-impact sports,occurring within 43 d(IQR:24 d)to 90 d(IQR:60 d).One or more of the investigated factors influenced the return to each of the 14 activities examined,with R²values ranging from 0.013 to *** Approximately 80%of patients can RTA,RTW,and RTS within 6 mo after *** is not consistently in-fluenced by predictive *** help set realistic pre-and postoperative expectations.

关键词： Knee Arthroplasty Replacement Return to work Return to daily activities Return to sports

泊松按批到达过程下由电梯乘客形成的系统化方法

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中国电梯 2016年第20期27卷 40-43页

作者： richard peters Lutfi AI-Sharif Ahmad T Hammoudeh Eslam Alniemi Ahmad Salman 行武奇 peters Research Ltd. NN U.K. Al-Sharif VTC Ltd. London U.K Dar AI Handasah U.K. The University of Jordan JO u.K 西安市徐家湾红旗东路西安710021

乘客到达过程是电梯交通仿真器的重要组成部分。乘客到达数量表示电梯所能承受的载重要求。乘客到达模型应能反映到达过程的真实特性，确保仿真的输出结果更能代表真实情况。在本文中，笔者介绍和探讨了几种到达模型，并提出了一种生成... 详细信息

乘客到达过程是电梯交通仿真器的重要组成部分。乘客到达数量表示电梯所能承受的载重要求。乘客到达模型应能反映到达过程的真实特性，确保仿真的输出结果更能代表真实情况。在本文中，笔者介绍和探讨了几种到达模型，并提出了一种生成乘客到达的新方法。

关键词：到达过程电梯交通乘客系统化到达模型组成部分数量表示输出结果