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基于Ferry Borges理论的地震与重卡车作用下桥梁内力的组合问题 被引量:6
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作者 孙得璋 孙柏涛 George C.Lee 《地震工程与工程振动》 CSCD 北大核心 2011年第6期18-23,共6页
目前的AASHTO LRFD桥梁规范主要考虑重力荷载和卡车等活荷载的组合情况,而没有在概率基础上考虑地震等极端荷载的组合问题。包括LRFD在内的很多桥梁抗震规范都是主要考虑地震的作用,甚至设计时不考虑其他荷载的作用,LRFD设计指导手册中... 目前的AASHTO LRFD桥梁规范主要考虑重力荷载和卡车等活荷载的组合情况,而没有在概率基础上考虑地震等极端荷载的组合问题。包括LRFD在内的很多桥梁抗震规范都是主要考虑地震的作用,甚至设计时不考虑其他荷载的作用,LRFD设计指导手册中在考虑地震等极端荷载时,也只是提到在特殊情况和桥梁比较长的情况下再考虑卡车的作用,而且,也比较模糊。文中在考虑地震荷载与卡车荷载时将其视为2种随机过程函数,并分析其各自的荷载特点。结合最近一些年USGS收集的极端荷载数据,文中认为桥梁设计(考虑地震和重卡车设计)时应该综合考虑地震和重卡车的影响,对它们进行荷载组合。接着,文中简单回顾了几种荷载组合方法,对比之后,认为FerryBorges(也称Ferry Borges-Castanheta模型)模型考虑了荷载的持时因素与荷载发生概率,虽然也对荷载做了极大的简化,但很好地解释了随机过程转化成随机变量以及与其他随机变量组合的复杂问题。最后,本文以美国西雅图地区的一桥梁为研究对象进行了算例分析。 展开更多
关键词 LRFD 极端荷载 随机过程 荷载组合 地震与重卡车 FERRY borges 桥梁设计
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基于Borges差分的RMSprop算法及在卷积神经网络参数训练中的应用 被引量:2
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作者 高哲 剪静 《辽宁大学学报(自然科学版)》 CAS 2023年第1期1-9,F0002,共10页
针对RMSprop算法存在梯度消失和局部最优的问题,本文提出了一种基于Borges差分的RMSprop算法并应用到卷积神经网络参数训练方法.根据Borges分形导数的定义,本文给出了Borges差分的定义;将Borges差分与RMSprop算法相结合,提出了基于Borge... 针对RMSprop算法存在梯度消失和局部最优的问题,本文提出了一种基于Borges差分的RMSprop算法并应用到卷积神经网络参数训练方法.根据Borges分形导数的定义,本文给出了Borges差分的定义;将Borges差分与RMSprop算法相结合,提出了基于Borges差分的RMSprop优化算法,提高了图像识别的精度和学习收敛速度;给出了一种基于梯度信息的自适应的调整阶次的方法.本文以Fashion-MNIST数据集为例,分析了阶次对网络参数训练结果的影响,验证了本文提出的算法提高卷积神经网络的识别精度和学习收敛速度的有效性. 展开更多
关键词 卷积神经网络 RMSprop算法 borges差分 分形导数 反向传播
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A letter from professor Joao Borges Fortes Filho in Brazil
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作者 Porto Alegre RS, Brazil 《国际眼科杂志》 CAS 2007年第2期335-335,共1页
关键词 巴西 Joao borges Fortes Filho教授 视网膜病 IJO 研究进展
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Reading as Transformational Journey From Homer to Borges
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作者 Robin McAllister 《Journal of Literature and Art Studies》 2015年第6期385-393,共9页
The transformational journey archetype begins long before literature in rites of initiation when a child undergoes a journey full of tests and temptations, perilous encounters in an underworld, and visions that transf... The transformational journey archetype begins long before literature in rites of initiation when a child undergoes a journey full of tests and temptations, perilous encounters in an underworld, and visions that transform the child into a member of a tribe. Before this archetype is translated by the written word into literature, the telling of the story is not just the account of something that happened long ago in the past, but an actual reenactment of the events for the audience. The journey archetype appears in the earliest example of literature, Homer's Odyssey, where Homer makes the readers both an observer and participant in the transformation. The journey does not always, as in rites of initiation, involve a child and occur only once in life. Instead, the journey may begin in death and trauma and involve a person who must resume that journey over again as an adult. Such is the fate of Aeneas in Virgil's Aeneid whose transformative journey begins with the burning towers of Troy. In these two early epics the heroes suffer the loss of an older world and must resume their pursuit of new identities in a new world after descending to a land of death or underworld to consult ancestor figures who prepare them for the transition to a new life, identity, and destiny. The reader of these works participates in the journeys the heroes undertake and learns to renew contact with the sources of life and consciousness in myth, magic, and vision. Dante's journey through the Inferno to his vision of God in Paradiso is a culmination of this transformative experience and vision, whose intent is to transform us as well through imaginative and intellectual participation in the journey. In Jorge Luis Borges's parody of Dante in his story, "El Aleph", Borges goes beyond Dante in making the reader, not only a participant in the journey and vision, but a "writer" whom Borges evokes to transform the impossible vision of the Aleph into an illusion of reality. Unlike Dante's positive transformational vision of the universe as a harmonious cosmos embraced within the vision of God as if it were a book uniting its multiple pages in one binding, the vision of the Aleph confronts the protagonist and readers with a universe that is random and chaotic, a vision that is disillusioning rather than transformational. 展开更多
关键词 transformational journey READING rite of initiation HOMER VIRGIL Dante borges
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Reading Borges at Iguazu Falls
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作者 Robin McAllister 《Journal of Literature and Art Studies》 2015年第10期830-834,共5页
An observer at Iguazu Falls tries to make sense of the inexpressible natural wonder through the texts of Jorge Luis Borges's essays and poems. Borges's paradoxes of time, immortality, and eternity give meaning to th... An observer at Iguazu Falls tries to make sense of the inexpressible natural wonder through the texts of Jorge Luis Borges's essays and poems. Borges's paradoxes of time, immortality, and eternity give meaning to the vision, while the natural wonder gives substance to those idealist concepts derived from Berkeley. As a reader of Borges's fictions, I yield up my personal identity to an impersonal dreaming consciousness that resembles Berkeley's mind as a consciousness sustaining the reality I perceive. Borges writes in his poem "Dawning" that "ideas are not like marble, everlasting, but ever-renewing like a forest or a river". The cataracts of Iguazu are both eternal and immortal, eternal in the sense of removing our consciousness of time and confusing past, present, and future in constant repetition, and immortal in the sense of only existing in individual drops of water constantly disappearing and renewing in infinite repetition. The cataracts are perfect emblems of this immortality. The cataracts are time, infinite moments of immortality, moving forward, accelerating, repeating themselves identically, until they achieve a certain eternity, no motion, suspended in time. I am Berkeley's Eternal Spirit, the consciousness evoked by Borges in his essay, "A New Refutation of Time". Distance from the immediate impact of the Falls helps transform fear and horror into sublimity. The closer to the Falls, the more the observer feels fear and anguish at his own insignificance, a fear of annihilation. Aesthetic distance requires an image or word, something that exempts us from immediate contact, and allows us to descend into the whirlpool and come back to the calm surface. The vision evoked in writing and reading fiction is both prior and subsequent to the reading. Our vision of the universe is always inexpressible, a problem of accommodating something overwhelming to the limited schemata we use to grasp existence. 展开更多
关键词 BERKELEY borges Iguazu Falls ETERNITY IMMORTALITY
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Signs of the Concept of Chaos in Kant’s Thinking and Its Relationship with Jorge Luis Borges’Thinking
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作者 Pablo César Martín Meier 《Journal of Philosophy Study》 2018年第3期142-150,共9页
The concept of chaos is present in man from the origins of mankind.Philosophy is alien to this concept and proceeds to speculate about its reality.Both Kant and Borges were not indifferent to this speculation and in t... The concept of chaos is present in man from the origins of mankind.Philosophy is alien to this concept and proceeds to speculate about its reality.Both Kant and Borges were not indifferent to this speculation and in their works,we can find“the effort to explain or to approach”the concept of chaos.Our first aim is to demonstrate in Kant’s The Critique of Judgement,and more precisely in The Analytic of the Sublime,what Kant understands as“chaos.”Our second aim is to establish a relationship between Kant and Borges in some of Borges’tales.Finally,we aim at establishing whether this“language of chaos”can refer to a sort of communication which exceeds logic language,i.e.,a sort of“mute logos.” 展开更多
关键词 CHAOS SUBLIME Kant borges LOGOS
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Poor, Pitiful Monsters From Homer to Borges
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作者 Robin McAllister 《Journal of Literature and Art Studies》 2016年第8期901-904,共4页
This article reviews famous monsters in Western literature that reveal a hidden humanity or affinity with the hero that elicits compassion or emphasizes their bestiality in surprising ways. Their monstrosity is often ... This article reviews famous monsters in Western literature that reveal a hidden humanity or affinity with the hero that elicits compassion or emphasizes their bestiality in surprising ways. Their monstrosity is often a distorted mirror image of the hero's humanity. Shakespeare's Caliban is a famous example of the affinity between monster and protagonist. Homer's Polyphemus, the first monster in Western tradition establishes certain traits that persist through later literature: lawless, barbarian, cannibal, and giant. Polyphemus hates men, but loves his old ram. Grendel, Grendel's mother, and the dragon in Beowulf are giants, lawless, cannibals. The dragon Beowulf dies fighting anticipates the identity between hero and monster that Borges makes explicit in Asterion, the Minotaur. Dante's Satan in the Inferno fails to leave later successors. In Borges's "The House of Asterion" the Minotaur is both monster and hero. Asterion's affinities with other protagonists in Borges' stories suggest that the monster in the labyrinth is not the Minotaur, but the concept of infinity. 展开更多
关键词 MONSTERS HOMER BEOWULF borges
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Borges' Poetics of Visible Unrealities
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作者 Robin McAllister 《Journal of Literature and Art Studies》 2014年第5期338-344,共7页
Close reading and inter-textual analysis of Borges' essays, fiction, and poetry suggest a poetics of visible unrealities, a fiction that calls attention to its own artifice. Borges's poetics of reading and dreaming ... Close reading and inter-textual analysis of Borges' essays, fiction, and poetry suggest a poetics of visible unrealities, a fiction that calls attention to its own artifice. Borges's poetics of reading and dreaming require another poetics of the work as a text that calls attention to its own artifice. In reading Borges' fiction, the separate roles and identities of reader, writer, and work of fiction merge and exchange roles, powers, and identities and are transformed into a single act of dreaming, which assumes cosmogonic and apocalyptic risks. In the dominant role given to the reader, the work of fiction as an object or work of art does not exist unless it is read. There is no determinate text, only a version of our own we re-write and invent every time we read the text. The author's reading is not a spontaneous evocation of vision, but an artifice, as artificial as the writing of the fiction. As writers and readers we are composed of texts and schemata, alphabets and artifacts, not merely mental perceptions and ideas. The reader requires a prior text to copy, translate, and recreate, and that text only exists as a fictional microcosm in so far as it is being read by a Reader who is able to actualize the revelation only imminent within it. 展开更多
关键词 borges POETICS READING BERKELEY
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Infinite Regress and the Illusion of Actuality and Participationin Borges's The Aleph
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作者 Robin McAllister 《Journal of Literature and Art Studies》 2017年第6期656-662,共7页
Borges wants his reader to use imagination to participate in his fiction, to imagine the vision of the universe as anAleph. The vision of the Aleph is paradoxical, impossible, inexpressible--a point in space, in the b... Borges wants his reader to use imagination to participate in his fiction, to imagine the vision of the universe as anAleph. The vision of the Aleph is paradoxical, impossible, inexpressible--a point in space, in the basement of ahouse in Buenos Aires, where all other points in the universe are simultaneously present. The reader sees theAleph--or the illusion of the Aleph, watching it emerge as if through Borges' own eyes, as an unrequited lover andfrustrated poet gradually accommodating the infinite vision to the limitations of actual perception. The illusion ofactual presence the reader evokes seems to include the reader as both a subject reading and an object in the vision.The reader mirrors himself in the enumeration as the reader imaginatively projects associations and expectationsinto the images in order to make sense of them. The reader tries to avoid involving himself in the vision, but theimages the writer presents the reader with are ambiguous, schematic, demanding intervention to try to resolveapparently unresolved contradictions by trying out the different interpretations that may make sense of them. Overand over again in reading the enumeration the reader encounters images that allow him to convert sequence intosimultaneity, part into whole. Other images suggest the presence of infinite, multiple, perspectives on each objectconverging in the Aleph and reveal insights into hidden designs and into secret interiors of structures. The visionthe reader reads must seem to exceed the limits of language and perception. Opposed to images of disintegrationand chaotic dispersal are microcosmic images that suggest a whole reflected or contained in its parts, worldsreflected within worlds by infinite regress. Infinite regress undermines the assumption of a subject and objectdichotomy in the act of reading and enhances the illusion of participation in the vision. Infinite regress, imagewithin image, world within world, is a symmetry that asserts itself against the illusion of the enumeration asapparently random and chaotic and reinforces the illusion of infinite convergence on one point in space. Thesuccess of this illusion depends partly on Borges' success in finding a stylistic formula that encourages the reader toevoke a total, simultaneous vision from a partial, sequential listing of images. The I saw...l saw...l saw formulaprovides a minimal formal order for referring each separate image to the concept of a total vision withoutinterfering with the illusion of actual participation by calling attention too much to the artifice that holds the visiontogether. Just as the separate images of the enumeration threaten to break loose from their minimal syntacticalframe and assume autonomy of their own, so the enumeration itself seems to assume autonomy from its narrativecontext. Within the context of a story of failed mediation in which every attempt at communication is interrupted,aborted, or comically transformed into unanticipated consequences, the reader seems to have resolved the problemof poetics Borges the writer poses to him as a reader. The reader's reading of Borges' fiction is a kind of hypothesisthe reader projects into his words in response to a problem of inexpressibility the writer poses for the reader justbefore he attempts to describe the Aleph. Similarly this fiction requires a certain kind of reader and reading--areader who intervenes in the fiction to complete with our imagination what the writer only hints at or denies, and areader who seeks out those contradictions or refutations in our interpretation that indicates our reading is onlypartial and falsifying, a hypothesis we propose in response to a problem of inexpressibility the writer has posed. 展开更多
关键词 borges Aleph INFINITE REGRESS
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Inarticulateness, Power and Ethnic identity On Jorge Luis Borges' The Gospel According to Mark
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作者 Du Bingyue 《International Journal of Technology Management》 2016年第8期10-11,共2页
This paper attempts to focus on Jorge Luis Borges’ short story The Gospel according To Mark. Borges, an Argentina short storywriter and translator, whose motherland is under long-term western colonization, identifi e... This paper attempts to focus on Jorge Luis Borges’ short story The Gospel according To Mark. Borges, an Argentina short storywriter and translator, whose motherland is under long-term western colonization, identifi es himself unconsciously with the western culture. Hisworks mostly touch upon the themes of religion and philosophy. Along with post-colonialism theory’s springing up, critics began to analyze hisworks from the post-colonial perspective. The author thinks that this short story with religious implication parallels to the cultural invasion in theperiod of colonization, from powerful culture to weaker one. The author, thus, aims to use Michael Foucault’s viewpoints concerning power andknowledge to probe into the western cultural hegemony and ideological invasion refl ected in this story. Besides, the loss and construction of theethnic identity of the colonized will be discussed in details. 展开更多
关键词 Jorge Luis borges power and knowledge inarticulateness Ethnic identity cultural hegemony.
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下肢重复蹬伸至力竭过程中肌肉功能网络拓扑特性
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作者 张陈 冉令华 +4 位作者 呼慧敏 张欣 周子健 徐红旗 史冀鹏 《中国组织工程研究》 CAS 北大核心 2025年第12期2513-2520,共8页
背景:表面肌电已经被广泛用于监测肌肉疲劳,但传统肌电指标通常针对于单块肌肉,无法评价一组肌肉在疲劳过程中的变化。目的:建立肌肉功能网络,提取复杂网络参数,研究不同疲劳程度下的肌肉功能网络拓扑特性变化,为疲劳的监测、预防提供... 背景:表面肌电已经被广泛用于监测肌肉疲劳,但传统肌电指标通常针对于单块肌肉,无法评价一组肌肉在疲劳过程中的变化。目的:建立肌肉功能网络,提取复杂网络参数,研究不同疲劳程度下的肌肉功能网络拓扑特性变化,为疲劳的监测、预防提供理论和方法依据。方法:11名受试者进行直到力竭的50%1RM单腿下肢蹬伸运动,同步采集股直肌、股外侧肌、股内侧肌、股二头肌长头、胫骨前肌、腓肠肌外侧肌、腓肠肌内侧肌7块肌肉的肌电信号,以及心电信号和Borg CR-10量表评分;根据Borg CR-10量表评分划分为轻度、中度和重度三个疲劳阶段,采用心率和心率变异性验证疲劳阶段划分的有效性;以7块肌肉为节点,使用肌肉信号的相干性构建肌肉功能网络,提取聚类系数、平均加权度、全局效率、特征向量中心性4个复杂网络参数;提取肌电信号的均方值振幅、中位频率、瞬时平均频率和共激活比4种指标,并在3种疲劳程度下进行比较。结果与结论:①3种疲劳阶段在心率及心率变异性上产生显著性差异,证明了疲劳阶段划分的有效性;②对于不同肌肉在3种疲劳程度下的肌电指标:均方值振幅和共激活比未表现出差异,中位频率在股外侧肌、股内侧肌和股二头肌长头表现出稳健的疲劳趋势,瞬时平均频率则在股直肌、股外侧肌、股内侧肌和股二头肌长头表现出稳健的疲劳趋势;瞬时平均频率的性能优于中位频率和均方值振幅,但三者仅在主要工作肌群能够获得较好的稳健趋势,共激活比不受疲劳因素的影响;③股外侧肌-股内侧肌、股外侧肌-股二头肌长头、股外侧肌-腓肠肌内侧肌和股内侧肌-股二头肌长头连接强度逐渐增加,平均加权度、聚类系数和全局效率在疲劳后表现出显著差异,并且与疲劳程度之间显著相关。结果表明:肌肉功能网络内的连通强度变化能够反映疲劳过程中肌肉间的协同性和互补性;聚类系数、平均加权度、全局效率可作为一组肌肉疲劳的监测指标。 展开更多
关键词 肌肉功能网络 下肢蹬伸 膝关节 肌电 Borg CR-10量表 疲劳 运动损伤 复杂网络指标 相干性
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Borg评分进阶综合运动方案联合云督导管理在老年慢性阻塞性肺疾病患者中的应用效果
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作者 王莉萍 陈群英 《医疗装备》 2025年第15期142-145,共4页
目的探讨Borg评分进阶综合运动方案联合云督导管理在老年慢性阻塞性肺疾病(慢阻肺)患者中的应用效果。方法选取2023年8月至2024年8月莆田九十五医院收治的110例老年慢阻肺患者为研究对象,以随机数字表法分为两组,各55例。对照组接受慢... 目的探讨Borg评分进阶综合运动方案联合云督导管理在老年慢性阻塞性肺疾病(慢阻肺)患者中的应用效果。方法选取2023年8月至2024年8月莆田九十五医院收治的110例老年慢阻肺患者为研究对象,以随机数字表法分为两组,各55例。对照组接受慢阻肺常规模式护理支持,观察组在对照组基础上接受Borg评分进阶综合运动方案联合云督导管理。比较两组运动康复依从性、身体活动能力[简易身体活动能力(SPPB)评分]、肺功能[第1秒用力呼气容积(FEV_(1))、用力肺活量(FVC)、FEV_(1)/FVC]及生活质量[圣·乔治呼吸问卷(SGRQ)评分]。结果观察组老年慢阻肺患者运动康复依从率、SPPB评分高于对照组,FEV_(1)、FVC、FEV_(1)/FVC值均高于对照组,SGRQ评分低于对照组(P<0.05)。结论采用Borg评分进阶综合运动方案联合云督导管理对老年慢阻肺患者实施干预,可提升患者运动康复依从性与身体活动能力,改善患者肺功能与生活质量。 展开更多
关键词 Borg评分 进阶综合运动方案 云督导管理 老年 慢性阻塞性肺疾病
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虚拟现实康复训练在慢性阻塞性肺疾病患者中的应用效果观察
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作者 张小敏 《中国现代药物应用》 2025年第10期167-170,共4页
目的探讨虚拟现实康复训练在慢性阻塞性肺疾病(COPD)患者中的应用效果。方法85例COPD患者按随机数字表法分为对照组(40例)和研究组(45例)。对照组采用常规康复训练(上肢举臂训练及步行训练),研究组采用BioMaster虚拟情景互动系统进行虚... 目的探讨虚拟现实康复训练在慢性阻塞性肺疾病(COPD)患者中的应用效果。方法85例COPD患者按随机数字表法分为对照组(40例)和研究组(45例)。对照组采用常规康复训练(上肢举臂训练及步行训练),研究组采用BioMaster虚拟情景互动系统进行虚拟现实康复训练(家务活动、骑车模拟等),每日1次,持续12周。比较两组康复训练前后的肺功能指标(呼吸频率、血氧饱和度、FEV1/FVC、肺每分钟最大通气量、6 min步行距离)、Borg呼吸困难评分、康复总有效率及满意度。结果训练后,两组肺功能指标及Borg评分均显著改善(P<0.05),且研究组呼吸频率(19.31±1.27)次/min、血氧饱和度(98.92±0.38)%、FEV1/FVC(56.51±2.48)%、6 min步行距离(429.27±51.01)m及Borg评分(1.41±0.37)分均优于对照组(22.16±1.86)次/min、(96.51±0.71)%、(54.42±2.06)%、(398.54±47.11)m、(2.17±0.45)分(P<0.05)。研究组康复总有效率为97.78%(44/45),显著高于对照组的82.50%(33/40);满意度为100.00%(45/45),显著高于对照组的85.00%(34/40)(P<0.05)。结论虚拟现实康复训练可有效改善COPD患者肺功能,缓解呼吸困难,提升康复效果及患者依从性,具有显著的临床应用价值。 展开更多
关键词 虚拟现实康复训练 慢性阻塞性肺疾病 肺功能 Borg呼吸困难评分 满意度
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Imitation and Transgression: Ge Fei's Creative Use of Jorge Luis Borges's Narrative Labyrinth
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作者 Qingxin Lin 《Fudan Journal of the Humanities and Social Sciences》 2015年第4期649-669,共21页
This paper attempts to trace the influence of Jorge Luis Borges on Ge Fei. It shows that Ge Fei's stories share Borges's narrative form though they do not have the same philosophical premises as Borges's to support... This paper attempts to trace the influence of Jorge Luis Borges on Ge Fei. It shows that Ge Fei's stories share Borges's narrative form though they do not have the same philosophical premises as Borges's to support them. What underlies Borges's narrative complexity is his notion of the inaccessibility of reality or divinity and his understanding of the human intellectual history as epistemological metaphors. While Borges's creation of narrative gap coincides with his intention of demonstrating the impossibility of the pursuit of knowledge and order, Ge Fei borrows this narrative technique from Borges to facilitate the inclusion of multiple motives and subject matters in one single story, which denotes various possible directions in which history, as well as story, may go. Borges prefers the Jungian concept of archetypal human actions and deeds, whereas Ge Fei tends to use the Freudian psychoanalysis to explore the laws governing human behaviors. But there is a perceivable connection between Ge Fei's rejection of linear history and traditional storyline with Borges' explication of epistemological uncertainty, hence the former's tremendous debt to the latter. Both writers have found the conventional narrative mode, which emphasizes the telling of a coherent story having a beginning, a middle, and an end, inadequate to convey their respective ideational intents. 展开更多
关键词 Ge Fei - Jorge Luis borges . Narrative gap . Narrative labyrinthFreudian psychoanalysis . Jungian archetypes
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止咳散联合超声药透疗法治疗慢性阻塞性肺疾病急性加重期临床研究
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作者 袁大陆 尉理梁 +3 位作者 尹灵巧 白莉娜 陈圆芳 郦梦琳 《新中医》 CAS 2024年第22期63-67,共5页
目的:观察自拟止咳散配合超声药物透入疗法治疗慢性阻塞性肺疾病急性加重期(AECOPD)的临床疗效。方法:将208例AECOPD患者按简单随机化法分为治疗组与对照组各104例,治疗组与对照组各剔除2例,最终2组各完成研究102例。对照组给予常规综... 目的:观察自拟止咳散配合超声药物透入疗法治疗慢性阻塞性肺疾病急性加重期(AECOPD)的临床疗效。方法:将208例AECOPD患者按简单随机化法分为治疗组与对照组各104例,治疗组与对照组各剔除2例,最终2组各完成研究102例。对照组给予常规综合对症治疗,治疗组在对照组基础上给予止咳散联合超声药物透入疗法治疗。7 d为1个疗程,连续治疗2个疗程后评估2组临床疗效、中医证候评分、症状缓解时间、呼吸困难程度、血气指标及住院时间。结果:治疗组总有效率为94.12%,对照组为85.29%,2组比较,差异有统计学意义(P<0.05)。治疗后,2组中医证候评分、改良Borg评分均较治疗前降低(P<0.05),且治疗组中医证候评分、改良Borg评分均低于对照组(P<0.05)。治疗后,治疗组喘息缓解时间、咳嗽缓解时间、肺部啰音消失时间、住院时间均短于对照组,差异有统计学意义(P<0.05)。治疗后,2组动脉血氧分压(PaO_(2))水平均较治疗前升高(P<0.05),动脉血二氧化碳分压(PaCO_(2))水平较治疗前降低(P<0.05);且治疗组PaO_(2)水平高于对照组(P<0.05),PaCO_(2)水平低于对照组(P<0.05)。结论:止咳散配合超声药透疗法治疗AECOPD痰热蕴肺型疗效确切,可加速临床症状体征缓解,并能改善呼吸困难及血气指标,缩短住院时间。 展开更多
关键词 慢性阻塞性肺疾病 急性加重期 止咳散 超声药物透入疗法 改良Borg评分 血气分析
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探究早期心脏康复联合渐进式护理对心脏瓣膜置换术后ICU患者的影响
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作者 郭兰静 《心血管病防治知识(学术版)》 2024年第17期135-138,共4页
目的 探究早期心脏康复联合渐进式护理心脏瓣膜置换术后ICU患者的影响。方法 将2022年5月至2024年5月100例ICU心脏瓣膜置换术治疗的患者随机分为两组,观察组(50例)和对照组(50例),对照组患者给予常规护理,观察组患者给予早期心脏康复护... 目的 探究早期心脏康复联合渐进式护理心脏瓣膜置换术后ICU患者的影响。方法 将2022年5月至2024年5月100例ICU心脏瓣膜置换术治疗的患者随机分为两组,观察组(50例)和对照组(50例),对照组患者给予常规护理,观察组患者给予早期心脏康复护理结合渐进式护理,记录两组患者不良情绪、出ICU当天的6 min步行试验(6MWT)距离、相应的自觉用力程度分级(Borg评分),以及两组ICU住院时间。结果 观察组不良情绪得分均低于对照组,差异有统计学意义(P<0.05)。观察组出ICU当天的6MWT距离和对照组比较更高、Borg评分和对照组相比更低,差异有统计学意义(P<0.05)。两组ICU住院时间对比,观察组用时更短,差异有统计学意义(P<0.05)。结论 早期心脏康复结合渐进式护理能更好地提高心脏瓣膜置换术后患者的耐力,缓解不良情绪,缩短ICU住院时间,值得应用。 展开更多
关键词 心脏瓣膜置换术后ICU 早期心脏康复 渐进式护理 6MWT Borg评分
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公路桥梁地震设计状况荷载组合分项系数研究 被引量:5
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作者 周敉 赵威 +1 位作者 刘阳 朱国强 《中国公路学报》 EI CAS CSCD 北大核心 2021年第2期317-330,共14页
为了在保障桥梁目标可靠度指标的前提下,确定最优的地震设计状况荷载组合分项系数,使桥梁结构以最为经济的抗力方式抵御外加荷载,从而对现行的桥梁设计规范地震设计状况进行优化,为今后公路桥梁地震设计状况荷载组合计算提供理论依据和... 为了在保障桥梁目标可靠度指标的前提下,确定最优的地震设计状况荷载组合分项系数,使桥梁结构以最为经济的抗力方式抵御外加荷载,从而对现行的桥梁设计规范地震设计状况进行优化,为今后公路桥梁地震设计状况荷载组合计算提供理论依据和指导意见,以2座连续刚构桥为依托工程,建立空间动力有限元模型,采用Monte-Carlo法并基于动态称重(WIM)系统模拟随机车流,进行了数条地震波增量动力分析(IDA);采用Ferry Borges荷载组合理论求解地震设计状况组合效应分布,依据直接积分法求解桥梁结构的失效概率,从而确定荷载效应分项系数与可靠度指标影响面关系。研究结果表明:荷载效应分项系数的取值与目标可靠度指标的选取息息相关,忽略汽车荷载的地震设计状况风险分析,将严重低估桥梁结构的实际失效概率。为指导高烈度区连续刚构桥的地震设计状况设计,对于E2工况下的地震动输入,地震作用重要性系数λ1取1.0,桥梁结构跨径对汽车荷载效应分项系数取值产生较大的影响,故选取β_(s)=3.1~3.4作为Ⅷ度区连续刚构桥地震设计状况设计时目标可靠度指标建议值,汽车荷载分项系数Ψ_(Q)的建议取值为0.76;地震基本烈度对汽车荷载分项系数存在一定的影响,在同样的目标可靠度指标建议值下,对于Ⅶ度区地震设计状况,汽车荷载分项系数Ψ_(Q)的建议取值为0.652。 展开更多
关键词 桥梁工程 荷载效应分项系数 Ferry borges组合理论 地震设计状况 失效概率
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手臂静态姿势负荷的肌电实验研究 被引量:18
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作者 葛树旺 陈松林 +3 位作者 付圣灵 朱宏宇 宋昱 杨磊 《工业卫生与职业病》 CAS CSCD 北大核心 2008年第4期220-223,共4页
目的利用表面肌电术和Borg量表来测定、评价手臂静态姿势负荷,为工效学设计提供参考。方法14名男性大学生志愿者为对象,右臂以不同角度和距离做上抬、外展和前伸静态姿势,测定此间肱桡肌、肱二头肌、三角肌和斜方肌的表面肌电信号。肌... 目的利用表面肌电术和Borg量表来测定、评价手臂静态姿势负荷,为工效学设计提供参考。方法14名男性大学生志愿者为对象,右臂以不同角度和距离做上抬、外展和前伸静态姿势,测定此间肱桡肌、肱二头肌、三角肌和斜方肌的表面肌电信号。肌电幅度以最大自主收缩肌电百分比(MVE%)来表示。用Borg量表对不同姿势的主观疲劳程度评分。对肌电幅度与Borg量表评分进行Pearson相关分析。结果各肌群的肌电幅度、疲劳评分随上抬和外展角度以及前伸距离的增大呈上升趋势。表面肌电MVE%与Borg量表评分之间相关性显著。结论表面肌电和Borg量表评分能够反映肌肉的静态姿势负荷与应激,两者有明显的相关性。在所测定的肌肉中,以三角肌和斜方肌受累最为显著。 展开更多
关键词 静态姿势 劳动负荷 表面肌电术 Borg量表
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不同Borg评分患者临床特征及Borg评分对呼吸系统疾病的预后价值 被引量:28
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作者 张勇 周鹏 +1 位作者 刘涛 陈萍 《成都医学院学报》 CAS 2021年第4期512-515,共4页
目的比较呼吸与危重症医学科住院患者不同Borg评分的临床特征,探讨Borg评分的预后价值。方法选取2016年1月至2020年1月于彭州市人民医院呼吸与危重症医学科住院的245例患者为研究对象,根据Borg评分将患者分为0分组(n=90)、1~3分组(n=48)... 目的比较呼吸与危重症医学科住院患者不同Borg评分的临床特征,探讨Borg评分的预后价值。方法选取2016年1月至2020年1月于彭州市人民医院呼吸与危重症医学科住院的245例患者为研究对象,根据Borg评分将患者分为0分组(n=90)、1~3分组(n=48)、4~6分组(n=71)、≥7分组(n=36)4组。比较4组患者临床特征,并探讨Borg评分对呼吸系统疾病的预后价值。结果与0分组、1~3分组相比,4~6分组、≥7分组患者年龄更大(P<0.05);合并高血压、慢性阻塞性肺疾病(COPD)者更多(P<0.05)。与其他3组相比,≥7分组住院时间更长(P<0.001);出院1年呼吸困难再次住院率更高(P<0.05)。COPD、高血压、Borg≥7分为发生出院1年呼吸困难再次住院的独立危险因素。结论不同Borg评分有不同的临床特征,Borg评分与呼吸系统疾病预后具有相关性。针对呼吸系统疾病,建议有条件的医院对患者常规进行Borg评分评估,应重点关注Borg≥7分的人群,尤其是合并COPD和高血压的患者。 展开更多
关键词 Borg评分 老年 呼吸系统疾病 预后
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