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中国金丝桃属金丝桃组(藤黄科)新分类群(英文)

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植物分类学报 2005年第3期43卷 271-277页

作者： norman k.B.ROBSON Department of Botany The Natural History Museum Cromwell Road London SW7 5BD

描述了中国云南北部的金丝桃属Hypericum L.(藤黄科)两个新种,即楚雄金丝桃H. fosteri N. Robson和漾濞金丝桃H. wardianum N. Robson。二者均与短柱金丝桃H. hookerianum Wight & Arn.相近。楚雄金丝桃为一地方特有种,目前仅在模式地... 详细信息

描述了中国云南北部的金丝桃属Hypericum L.(藤黄科)两个新种,即楚雄金丝桃H. fosteri N. Robson和漾濞金丝桃H. wardianum N. Robson。二者均与短柱金丝桃H. hookerianum Wight & Arn.相近。楚雄金丝桃为一地方特有种,目前仅在模式地点发现;漾濞金丝桃在缅甸东北部还有分布。二者主要以蒴果伸长,非卵状近球形,萼片无中脉而有别于短柱金丝桃。此外,将宽萼金丝桃H. latisepalum (N. Robson) N. Robson从亚种提升为种;将变异较大的纤枝金丝桃H. lagarocladum N. Robson划分为两个亚种,即叶较宽、具有开张习性的原亚种纤枝金丝桃H. lagarocladum ssp. lagarocladum和叶较窄、更为直立的新亚种狭叶金丝桃H. lagarocladum ssp. angustifolium N. Robson。

关键词：中国金丝桃属金丝桃组藤黄科新分类群新种楚雄金丝桃漾濞金丝桃

Atlas of hypertension 6th ed

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VR-based digital twin for remote monitoring of mining equipment:Architecture and a case study

2009年

作者： norman k. Hollenberg Serries Editor Eugenen Braunwald

ISBN: (纸本)9781573403085

The sixth edition of the "Atlas of Hypertension" builds on the tremendous success of earlier editions, but significant revision has been done since the last edition - a third of the chapters are new, and more than half of the chapters are written by new authors. Expanded topics include home blood pressure; secondary hypertension; information on newer agents such as nebivolol, aliskiren, and new vasopeptidase inhibitors; the possible role and pharmacology of renin inhibition; and, American and European guidelines for antihypertensive treatment and their influence on physician practice. The striking, four-color format combined with the breadth of information it contains make this Atlas an invaluable resource for physicians, cardiologists, and all professionals involved in the study and treatment of hypertension.

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来源：畅想之星图书光盘版（南... 评论

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虚拟现实与智能硬件（中英文） 2024年第2期6卷 100-112页

作者： Jovana PLAVŠIĆ Ilija MIŠkOVIĆnorman Bkeevil norman B.keevil Institute of Mining Engineering University of British ColumbiaVancouverBC V6T 1Z4Canada

Background Traditional methods for monitoring mining equipment rely primarily on visual inspections,which are time-consuming,inefficient,and *** article introduces a novel approach to monitoring mission-critical systems and services in the mining industry by integrating virtual reality(VR)and digital twin(DT)***-based DTs enable remote equipment monitoring,advanced analysis of machine health,enhanced visualization,and improved decision *** This article presents an architecture for VR-based DT development,including the developmental stages,activities,and stakeholders involved.A case study on the condition monitoring of a conveyor belt using real-time synthetic vibration sensor data was conducted using the proposed *** study demonstrated the application of the methodology in remote monitoring and identified the need for further development for implementation in active mining *** article also discusses interdisciplinarity,choice of tools,computational resources,time and cost,human involvement,user acceptance,frequency of inspection,multiuser environment,potential risks,and applications beyond the mining *** The findings of this study provide a foundation for future research in the domain of VR-based DTs for remote equipment monitoring and a novel application area for VR in mining.

关键词： Virtual reality Digital twin Condition monitoring Mining equipment

Mechanism of cross-level settlements and void accumulation of wide and conventional sleepers in railway ballast

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Railway Engineering Science 2024年第3期32卷 361-383页

作者： Olga Nabochenko Mykola Sysyn norman krumnow Szabolcs Fischer Institute of Railway Systems and Public Transport Technical University of DresdenDresdenGermany Rhomberg Sersa Deutschland GmbH BerlinGermany Central Campus Győr Széchenyi István UniversityGyorHungary

The cross-level and twist irregularities are the most dangerous irregularity types that could cause wheel unloading with the risk of derailments and additional maintenance ***,the mechanism of the irregularities initiation and development is *** motivation of the present study was the previous experimental studies on the application of wide sleepers in the ballasted *** long-term track geometry measurements with wide sleepers show an enormous reduction of the vertical longitudinal irregularities compared to the conventional ***,wide sleepers had higher twist and cross-section level *** present paper aims to explain the phenomenon by discrete element method(DEM)modeling the development process of sleeper inhomogeneous support at cross-level depending on the sleeper *** DEM simulations show that the maximal settlement intensity is up to 3.5 times lower for a wide sleeper in comparison with the conventional ***,the cross-level differential settlements are almost the same for both *** particle loading distribution after all loading cycles is concentrated on the smaller area,up to the half sleeper length,with fully unloaded zones under sleeper *** flow limitation under the central part of the sleeper could improve the resilience of wide sleepers to the development of cross-level *** mechanism of initiation of the cross-level irregularity is proposed,which assumes the loss of sleeper support under sleeper *** further growth of inhomogeneous settlements along the sleeper is assumed as a result of the interaction of two processes:ballast flow due to dynamic impact during void closing and on the other side high pressure due to the concentration of the pressure under the middle part of the *** DEM simulation results support the assumption of the mechanism and agree with the experimental studies.

关键词： Wide sleeper Ballasted track Sleeper support inhomogeneity Sleeper foot form Discrete element modeling Void accumulation

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关于保持长期森林生态系统生产力的经济前景

湖北林业科技 1992年第1期 39-43页

作者： John H.Beuter k.norman Johson 宋长贵

常规效益成本分析(Benefit-Cost Analysis)无助于约束木材经营以保持长期的生态系统生产力(Ecosystem Productivity)。在这样的分析中,除了计划采伐效益(Allowable Cut Effect)直接地改变采伐标准这一特殊情况外,甚至长期木材生产力(Tim... 详细信息

常规效益成本分析(Benefit-Cost Analysis)无助于约束木材经营以保持长期的生态系统生产力(Ecosystem Productivity)。在这样的分析中,除了计划采伐效益(Allowable Cut Effect)直接地改变采伐标准这一特殊情况外,甚至长期木材生产力(Timher Product vity)也难以维持。政策和法规的目标是保护生态系统,限制私有地主的产权,增加林产、品的成本,为私有地主和公共机构服务。对这种分析的异议表明,约束木材经营可以增加纯公益。考虑长期生态系统退化代价的决策模型已经建立。然而,为了这些模型的应用,必须认识和理解它的长期效应,这对于生态系统研究者来说是一个可怕的挑战。经济学家和生物学家认识扣理解这一问题的关键是承认和确立资源的价值。

关键词：生产力成本生产方式财政管理森林生态系统无机非金属材料木材

Cross-cultural psychometric assessment of the parent-teen sexual risk communication (PTSRC-III) scale in Jamaica

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Open Journal of Preventive Medicine 2012年第2期2卷 205-213页

作者： norman k. Waldron M. katherine Hutchinson Hermi H. Hewitt Pansy I. Hamilton Department of Community Health and Psychiatry The University of the West Indies (UWI) Kingston Jamaica Hugh Wynter Fertility Management Unit Faculty of Medical Sciences The University of the West Indies (UWI) Kingston Jamaica New York University College of Nursing New York USA The UWI School of Nursing The University of the West Indies (UWI) Kingston Jamaica

Background: HIV/AIDS represents a serious health threat in Jamaica. Adolescent and young adult females are at particularly high risk. US studies have shown that parent-teen sexual communication may significantly influence the sexual risk-related beliefs and behaviors. However, no studies have examined parent-teen sexual communication in Jamaica or the wider Caribbean. Objective: The study aims to describe patterns of parent-teen sexual communication between Jamaican mothers and adolescent daughters and assess the psychometric properties of the Parent-Teen Sexual Risk Communication (PTSRC-III) scale when used with this population. Method: Data were collected as part of a larger randomized controlled trial study. A total of 330 urban Jamaican adolescent girls, ages 13 - 17, and their mothers or female guardians completed the 8-item PTSRC-III scale at baseline and 3-month follow-up. Results: Mothers’ and daughters’ scores covered the full range of possible scores. Internal reliability of the PTSRC-III scale was excellent (α = 0.92 and 0.93 for mothers and daughters, respectively). There was evidence of consistency over time (r = 0.57, p r = 0.27, p r = 0.427, p r = 0.146, p = 0.008). A two-factor structure was identified, although the second factor showed a lower eigen-value than was found in previous US studies. The loading pattern and explanation of variance were very similar to the factor 2 described in the initial psychometric testing of the PTSRC-III instrument. Discussion: Patterns of sexual communication and the psychometrics of the scale when used in Jamaica were consistent with US results, and provided evidence of the cross-cultural reliability and validity of the PTSRC-III scale.

关键词： Adolescent Sexual Risk Sexual Communication Psychometric Assessment Reliability

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风景园林设计要素

作者：诺曼 k.·布思(norman k. Booth)

来源：南通市图书馆图书评论

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致密星

国外科技新书评介 2014年第6期 7-8页

作者： norman k. Glendenning 郑耀昕不详中国科学院空间科学与应用研究中心

致密星是白矮星、中子星、黑洞等一类致密天体的总称，它是一类密度特别高的恒星，是在恒星的核能耗尽后，经引力坍缩而形成的。致密星的平均密度很高，体积很小，表面引力场很强。在这种超密环境中，大量粒子过程可能会发生，如核子转... 详细信息

致密星是白矮星、中子星、黑洞等一类致密天体的总称，它是一类密度特别高的恒星，是在恒星的核能耗尽后，经引力坍缩而形成的。致密星的平均密度很高，体积很小，表面引力场很强。在这种超密环境中，大量粒子过程可能会发生，如核子转为重核子、玻色凝聚和夸克解禁。

关键词：致密星平均密度致密天体引力坍缩玻色凝聚重核子白矮星中子星

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欧洲稀燃缸内直接喷射汽油机车型的评估

汽车与新动力 2012年第6期 24-29页

作者： Chambon P Huff S norman k Edwards k D Thomas J Prikhodko V 陈荣峻

稀燃汽油缸内直接喷射燃烧是一种很有前途的燃烧技术,可在满足未来排放要求的情况下显著提高燃油效率。虽然在美国市场上部分车型已实现化学计量比汽油缸内直接喷射技术的商业化运作,却还没有稀燃汽油直接喷射车型出现,而这种车型已在... 详细信息

稀燃汽油缸内直接喷射燃烧是一种很有前途的燃烧技术,可在满足未来排放要求的情况下显著提高燃油效率。虽然在美国市场上部分车型已实现化学计量比汽油缸内直接喷射技术的商业化运作,却还没有稀燃汽油直接喷射车型出现,而这种车型已在欧洲市场上市。美国橡树岭国家试验室获得了1台配装2.0 L稀燃汽油直接喷射汽油机的欧洲产BMW 1系轿车,利用底盘测功器对其进行测量,分别在美国行驶循环(联邦测试循环)、公路燃油经济性测试循环和US06联邦增补测试循环,以及稳态脉谱下检测了发动机和排气后处理系统的性能和排放。在研究过程中,同时对车辆使用轻度混合动力技术(发动机起动-停车系统和交流电机智能控制)时的性能进行了评估。对试验数据作了分析,并根据美国市场对燃油经济性和排放所提出的要求,量化了稀燃汽油直接喷射与轻度混合动力技术的优缺点。这些数据经过整理后将用于开发和运用常规或先进的动力总成车辆的仿真。

关键词：稀燃缸内直接喷射燃油经济性排放发动机起动-停车系统交流电机智能控制