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Research on the Novel Mode of Plane Graphic Design from the Angle of Visual Language Transmitting
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作者 Hui Wu 《International Journal of Technology Management》 2016年第2期31-33,共3页
In this paper, we conduct research on the novel mode of plane graphic design from the core angle of the primary visual language transmitting. Relationship between nationality and cosmopolitan processing in graphic des... In this paper, we conduct research on the novel mode of plane graphic design from the core angle of the primary visual language transmitting. Relationship between nationality and cosmopolitan processing in graphic design in the design of image symbol expression and significance of the symbol on the one hand require symbolic form must have enough openness and the cognitive function on the other hand with semiotics method can let the designer to extract the most representative and symbolic notation style to carry on the design expression. As a non- verbal symbols, from the perspective of the view, the design image is no national boundaries, but the human form to beauty and should express the symbolism of cognition is the same. In the form of the ethnic groups of the cosmopolitan codes are for identification of Chinese contemporary design possible effective methods. Our research proposes novel perspective of the design which is meaningful. 展开更多
关键词 Novel Mode Plane Graphic Design visual Language Transmitting General angle.
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The Study of Relationships between the Damage of Visual Function and Hemorrheology, Ocular Rheography, as well as Other Related Factors in Patients with Primary Open Angle Glaucoma (POAG) 被引量:1
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作者 Jian Ge, Wenbing Zhou National Ophthalmological Laboratories, Ministry of Public Health, China, Zhongshan Ophthalmic Center, Sun Yat-Sen University of Medical Sciences, Guangzhou 510060, China Jiancu Zhu, Anheng Cheng, Yulan Lin, Hongyan Tong, Lin Lian, Zhixing Chen Institute of Cardiovascular Diseases of Guangdong Province, Guangzhou 510080, China 《眼科学报》 1993年第1期3-11,共9页
Researches of glaucoma visual function damage, hemorrheololgy, ocular rheography and other related multiplex factors, with computed multifactorial stepwise regresion analysis, indicate that the elevation of intraocula... Researches of glaucoma visual function damage, hemorrheololgy, ocular rheography and other related multiplex factors, with computed multifactorial stepwise regresion analysis, indicate that the elevation of intraocular pressure (IOP) is not the only factor to induce visual impairment. POAG patients are shown to have markedly reduced diastolic purfussion pressure in ophthalmic artery, besides prolonged filling time of the retinal artery and vein, diminished erythrocyte deformability and increased platele... 展开更多
关键词 visual function hemorrheology primary open angle glaucoma (POAG) ocular rehography intraocular pressure (IOP) blood cells trace elements multiphy stepwise regression.
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(The Good), The Bad and The Ugly: The Visual Construction of Female Child Sex-offenders
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作者 Charlotte Barlow Adam Lynes 《Journalism and Mass Communication》 2015年第9期480-494,共15页
This paper explores the visual construction and representation of female sex offenders. It utilises the case study of Vanessa George, a nursery worker who was involved in the exchange of indecent imagery of children v... This paper explores the visual construction and representation of female sex offenders. It utilises the case study of Vanessa George, a nursery worker who was involved in the exchange of indecent imagery of children via an online paedophile ring. The first part of the paper considers the emergence of the sub-discipline, visual criminology and examines what is known about the visual representation of female offenders. The second part presents the findings of an empirical investigation, which involved engaging in a critical, reflexive visual analysis of a selection photographs and the police mugshot of Vanessa George. The paper considers the ways in which George's physical appearance and her suggested ability to deceive were used to visually represent her as "other", thus reinforcing the existing simplistic motifs of female sex offending. 展开更多
关键词 female child sex offenders visual representation
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The Exact Estimation of Visual Acuity by VEP Technology:A Report of 726 Cases of Eye Injury 被引量:3
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作者 饶广勋 吴炳为 张玲莉 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2010年第1期138-140,共3页
This study explored the accuracy of using visual evoked potentials(VEP)technology for visual acuity estimation.The enrolled 726 patients with post-traumatic unilateral decrease in visual acuity included the injured ey... This study explored the accuracy of using visual evoked potentials(VEP)technology for visual acuity estimation.The enrolled 726 patients with post-traumatic unilateral decrease in visual acuity included the injured eyes served as the experimental group,and the healthy eyes as the control group.The least signal visual angle(LSVA),and amplitude and latency of P100 were chosen as test indexes.The results under different experimental conditions were recorded by PRVEP technology.All data collected were processed... 展开更多
关键词 clinical forensic medicine visual evoked potentials visual acuity least signal visual angle amplitude and lateny of P100
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Normal tension glaucoma: from the brain to the eye or the inverse? 被引量:6
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作者 Hui-Jun Zhang Xue-Song Mi Kwok-Fai So 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第11期1845-1850,共6页
Glaucoma is a chronic, progressive optic neuropathy characterized by the loss of peripheral vision first and then central vision. Clinically, normal tension glaucoma is considered a special subtype of glaucoma, in whi... Glaucoma is a chronic, progressive optic neuropathy characterized by the loss of peripheral vision first and then central vision. Clinically, normal tension glaucoma is considered a special subtype of glaucoma, in which the patient’s intraocular pressure is within the normal range, but the patient experiences typical glaucomatous changes. However, increasing evidence has challenged the traditional pathophysiological view of normal tension glaucoma, which is based only on intraocular pressure, and breakthroughs in central nervous system imaging may now greatly increase our knowledge about the mechanisms underlying normal tension glaucoma. In this article, we review the latest progress in understanding the pathogenesis of normal tension glaucoma and in developing imaging techniques to detect it, to strengthen the appreciation for the connection between normal tension glaucoma and the brain. 展开更多
关键词 NERVE REGENERATION normal tension GLAUCOMA open angle GLAUCOMA NEURODEGENERATIVE diseases visual field CEREBROSPINAL fluid pressure IMAGING techniques pathogenesis magnetic resonance IMAGING diffusion tensor IMAGING metabolic changes neural REGENERATION
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Visualizing experimental investigation on gas-liquid replacements in a microcleat model using the reconstruction method 被引量:1
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作者 Shaojie Chen Jicheng Zhang +3 位作者 Dawei Yin Faxin Li Jialin Lu Peiyang Zhu 《Deep Underground Science and Engineering》 2023年第3期295-303,共9页
Cleats are the main channels for fluid transport in coal reservoirs.However,the microscale flow characteristics of both gas and water phases in primary cleats have not been fully studied as yet.Accordingly,the local m... Cleats are the main channels for fluid transport in coal reservoirs.However,the microscale flow characteristics of both gas and water phases in primary cleats have not been fully studied as yet.Accordingly,the local morphological features of the cleat were determined using image processing technology and a transparent cleat structure model was constructed by microfluidic lithography using the multiphase fluid visualization test system.Besides,the effect of microchannel tortuosity characteristics on two‐phase flow was analyzed in this study.The results are as follows:(1)The local width of the original cleat structure of coal was strongly nonhomogeneous.The cleats showed contraction and expansion in the horizontal direction and undulating characteristics in the vertical direction.(2)The transient flow velocity fluctuated due to the structural characteristics of the primary cleat.The water‐driven gas interface showed concave and convex instability during flow,whereas the gas‐driven water interface presented a relatively stable concave surface.(3)The meniscus advanced in a symmetrical pattern in the flat channel,and the flow stagnated due to the influence of undulation points in a partially curved channel.The flow would continue only when the meniscus surface bypassed the stagnation point and reached a new equilibrium position.(4)Enhanced shearing at the gas-liquid interface increased the gas‐injection pressure,which in turn increased residual liquids in wall grooves and liquid films on the wall surface. 展开更多
关键词 dynamic contact angle flow visualization instantaneous velocity microcleat residual liquid
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Visual navigation in orchard based on multiple images at different shooting angles
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作者 MA Zenghong YUE Jiawen +3 位作者 YIN Cheng ZHAO Runmao CHANDA Mulongoti DU Xiaoqiang 《智能化农业装备学报(中英文)》 2024年第4期51-65,共15页
The orchards usually have rough terrain,dense tree canopy and weeds.It is hard to use GNSS for autonomous navigation in orchard due to signal occlusion,multipath effect,and radio frequency interference.To achieve auto... The orchards usually have rough terrain,dense tree canopy and weeds.It is hard to use GNSS for autonomous navigation in orchard due to signal occlusion,multipath effect,and radio frequency interference.To achieve autonomous navigation in orchard,a visual navigation method based on multiple images at different shooting angles is proposed in this paper.A dynamic image capturing device is designed for camera installation and multiple images can be shot at different angles.Firstly,the obtained orchard images are classified into sky and soil detection stage.Each image is transformed to HSV space and initially segmented into sky,canopy and soil regions by median filtering and morphological processing.Secondly,the sky and soil regions are extracted by the maximum connected region algorithm,and the region edges are detected and filtered by the Canny operator.Thirdly,the navigation line in the current frame is extracted by fitting the region coordinate points.Then the dynamic weighted filtering algorithm is used to extract the navigation line for the soil and sky detection stage,respectively,and the navigation line for the sky detection stage is mirrored to the soil region.Finally,the Kalman filter algorithm is used to fuse and extract the final navigation path.The test results on 200 images show that the accuracy of visual navigation path fitting is 95.5%,and single frame image processing costs 60 ms,which meets the real-time and robustness requirements of navigation.The visual navigation experiments in Camellia oleifera orchard show that when the driving speed is 0.6 m/s,the maximum tracking offset of visual navigation in weed-free and weedy environments is 0.14 m and 0.24 m,respectively,and the RMSE is 30 mm and 55 mm,respectively. 展开更多
关键词 ORCHARD visual navigation multiple shooting angles region segmentation Kalman filter
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Analysis of the development trend of leisure sports from the perspective of synergetic development of industry
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作者 Bing Chen 《International Journal of Technology Management》 2017年第5期6-8,共3页
The starting point of the social development and the ultimate goal is to improve the quality of people' s life, the sports form, content, structure and function are put forward new demands, the trend of leisure sport... The starting point of the social development and the ultimate goal is to improve the quality of people' s life, the sports form, content, structure and function are put forward new demands, the trend of leisure sports activities become a new research object. This paper adopts the method of literature and logical analysis from the new era of domestic and foreign leisure sports development present situation and tendency of, analyzes current situation and problems of leisure sports China development, put forward the corresponding countermeasures for the healthy development of leisure sports. Chinese sports in the new period is to improve the quality of life and social development goals. 展开更多
关键词 Industry research collaboration visual angle leisure sports development trend ANALYSIS
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On China's Economy: A Tentative Research from a Dual Visual Angle
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作者 Guibin Suo Zhiyong Shi 《Chinese Business Review》 2005年第4期80-81,共2页
Most economists approach the economy of China from a single visual angle considering it as a special economic modality of transition economy. Based on the analysis from the single visual angle, the paper puts forward ... Most economists approach the economy of China from a single visual angle considering it as a special economic modality of transition economy. Based on the analysis from the single visual angle, the paper puts forward a dual visual angle treating China's economy as one of both transition and transformation features, and attempts to research it from this dual visual angle. 展开更多
关键词 China's economy transition and transformation dual visual angle
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A STUDY ON VISUAL EVOKED POTENTIAL TO SHOW THE RELATIONSHIP BETWEEN THE EYES AND THE TWELVE REGULAR CHANNELS
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作者 段俊国 周华详 +5 位作者 陈晓莉 潘学会 袁晓辉 李翔 肖挹 胡雪云 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1998年第2期140-145,共6页
The visual electrophysiologic method was used to investigate the relationship between the eyes and the 12 regular channels. The values of the latent period and the amplitude of P100 wave were calculated and compared s... The visual electrophysiologic method was used to investigate the relationship between the eyes and the 12 regular channels. The values of the latent period and the amplitude of P100 wave were calculated and compared statistically. The results show that: 1) The eyes and the 12 regular channels are closely related, no matter whether the channels are classically associated with the eyes or not, while the control (non-channel)/ point has no such relationship; 2) the degrees of relationship between the eyes and the 12 regular channels vary significantly; and 3) acupuncture at the 12 regular channels induces different effects on the visual evoked potential that the Urinary Bladder Channel presents a facilitation effect whereas all the other channels chiefly show an inhibitory effect. 展开更多
关键词 ELECTROACUPUNCTURE Evoked Potentials visual Eye MERIDIANS ADOLESCENT Adult female Humans Male
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Bifurcation analysis of visual angle model with anticipated time and stabilizing driving behavior
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作者 Xueyi Guan Rongjun Cheng Hongxia Ge 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第7期214-228,共15页
In the light of the visual angle model(VAM),an improved car-following model considering driver's visual angle,anticipated time and stabilizing driving behavior is proposed so as to investigate how the driver's... In the light of the visual angle model(VAM),an improved car-following model considering driver's visual angle,anticipated time and stabilizing driving behavior is proposed so as to investigate how the driver's behavior factors affect the stability of the traffic flow.Based on the model,linear stability analysis is performed together with bifurcation analysis,whose corresponding stability condition is highly fit to the results of the linear analysis.Furthermore,the time-dependent Ginzburg–Landau(TDGL)equation and the modified Korteweg–de Vries(m Kd V)equation are derived by nonlinear analysis,and we obtain the relationship of the two equations through the comparison.Finally,parameter calibration and numerical simulation are conducted to verify the validity of the theoretical analysis,whose results are highly consistent with the theoretical analysis. 展开更多
关键词 visual angle bifurcation analysis anticipated time stabilizing driving behavior TDGL and mKdV equations
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Development of Instrument Control System Using Biosignals Created by the Change of Eyes Movement Sequence
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作者 肖云翔 李刚 NOGATA Fumio 《Transactions of Tianjin University》 EI CAS 2003年第2期115-118,共4页
A new biosi gn al control system that offers the disables the opportunities to control electric appliances is proposed.The four types of signals created by the eyes movements in four directions(up,down,left,and right)... A new biosi gn al control system that offers the disables the opportunities to control electric appliances is proposed.The four types of signals created by the eyes movements in four directions(up,down,left,and right),which are taken as four basic signals , are detected at the forehead.Permutation of 2 signals out of them creates 16 d ifferent signals.Permutation of 3 signals out of them creates 64 signals.They al l amounts to 84 control signals.They are thought to be applicable for the operat ion of some instruments.Furthermore,the dynamic biosignals created by the slow e yes movement is speculated to be applicable for the more convenient control of t hem. 展开更多
关键词 eyes movement biosignal control brai n wave visual angle Fast Fourier Transform wavelet coefficient
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TREATMENT OF JUVENILE AMETROPIA BY AURICULAR-PLASTER THERAPY COMBINED WITH PLUM-BLOSSOM NEEDLE TAPPING -A Report of 200 Cases
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作者 程红锋 马玉英 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1998年第1期47-48,共2页
In recent years, the authors employed plum-blossom needle tapping on the specific acupoints with external application of Huoxue Zengshi Ye (HZY, 活血增视液 infusion for promoting blood circulation and improving eyesig... In recent years, the authors employed plum-blossom needle tapping on the specific acupoints with external application of Huoxue Zengshi Ye (HZY, 活血增视液 infusion for promoting blood circulation and improving eyesight) in combination with the auricular-plaster therapy by using 展开更多
关键词 Acupuncture therapy Acupuncture Points Administration Cutaneous Adolescent Adult AMBLYOPIA CHILD Child Preschool Drugs Chinese Herbal Ear External female Humans HYPEROPIA Male Myopia visual Acuity
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青少年特发性脊柱侧弯治疗的可视化分析 被引量:1
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作者 郑晓东 高山 +3 位作者 韩文瑾 刘立俊 贾梦龙 于龙潭 《中国组织工程研究》 CAS 北大核心 2025年第3期645-653,共9页
背景:目前脊柱侧弯发病率正在逐年上升,尤以青少年特发性脊柱侧弯最为常见。因此加强对青少年脊柱侧弯治疗的研究就显得越来越重要。目的:旨在总结全球关于青少年特发性脊柱侧弯治疗研究的现状、热点、新兴趋势以及前沿,为今后相关的研... 背景:目前脊柱侧弯发病率正在逐年上升,尤以青少年特发性脊柱侧弯最为常见。因此加强对青少年脊柱侧弯治疗的研究就显得越来越重要。目的:旨在总结全球关于青少年特发性脊柱侧弯治疗研究的现状、热点、新兴趋势以及前沿,为今后相关的研究提供参考及指导。方法:从Web of Science核心集数据库中检索2013-2023年有关青少年特发性脊柱侧弯治疗的文献。运用CiteSpace 6.2.R1软件对国家、机构、作者和关键词进行可视化分析。结果与结论:①共纳入561篇英文文献,在国家、机构及作者分析中,美国的贡献最为突出,南京大学及Qiu Yong(南京大学医学院附属鼓楼医院)是发文量最多的机构及作者,发文量最多的学术期刊是《European Spine Journal》。②在被引用文献分析中,引用量前10位的文章主要描述了手术治疗与保守治疗对于改善青少年特发性脊柱侧弯的效果,尤以改善患者曲度为著,③通过对高被引文章进行归纳总结以及对关键词聚类、关键词突现进行深入挖掘发现,目前的研究热点是Cobb角与治疗方法选择的关系、运动疗法的治疗效果与椎体后路融合术的治疗效果。④对于不同曲度的患者,预后情况是否一致未有深入研究,以及青少年特发性脊柱侧弯的病因尚未明确,因此曲率与预后的关系以及青少年特发性脊柱侧弯的病因可能是未来新的研究趋势。 展开更多
关键词 文献计量学 青少年特发性脊柱侧弯 治疗 CITESPACE 可视化分析 COBB角 热点 趋势
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The Ultimate Female Auteur: Visuality, Subjectivity, and History in the Works of Peng Xiaolian
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作者 S. Louisa Wei 《Frontiers of Literary Studies in China-Selected Publications from Chinese Universities》 2017年第1期157-179,共23页
Peng Xiaolian is a rare and prolific Chinese author who writes both fiction and non-fiction works and directs both dramatic and documentary films. Peng has not only written, cowritten, or rewritten all the screenplays... Peng Xiaolian is a rare and prolific Chinese author who writes both fiction and non-fiction works and directs both dramatic and documentary films. Peng has not only written, cowritten, or rewritten all the screenplays of her eight dramatic features and two documentaries but is also the author of one novel, twelve novellas, over a dozen short stories, four book-length memoirs, three collections of film reviews, and numerous essays. The existing scholarly studies, however, nearly all focus on Peng's dramatic films, with much less, if any, attention directed at her writing and documentaries. To really understand Peng as a film auteur, however, it is necessary to look at her films and writings together. Given the quantity and complexity of her works and the space limitations of this article, I examine Peng's subversion of the conventional treatment of character, location, and time in three thematic sections reflecting the key narrative motifs in her work. I first summarize existing studies of Peng's films, highlighting the rarely examined interaction between visuality and spatiality in her films. Then, after defining her sense of time in narrative, I demonstrate how family history and self-reflexivity are the major difference between her films and her nonfiction works. Last but not least, I discuss how, through her use of multilayered narratives constructed by the female voice and subjectivity, her complete repertoire constitutes a unique history of modern Chinese women. This article aims to demonstrate how, through her use of multilayered narratives constructed by the female voice and subjectivity, her complete repertoire constitutes a unique history of modern Chinese women. 展开更多
关键词 female auteur visuality and spaciality female subjectivity women's history women's writing women's film
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Head Position of Patients with Right Hemisphere Damage during a Visual Search Task in a Large Field
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作者 Ken Nakatani Shusuke Takahashi +8 位作者 Daisuke Kimura Masako Notoya Nobuyuki Sunahara Takashi Fujita Minoru Toyama Shinya Fukunaga Naoe Mori Kiyoe Sakai Shinya Fuwa 《World Journal of Neuroscience》 2018年第2期190-202,共13页
Spatial neglect syndrome with cerebral lesions is characterized by the ina-bility to orient, report, or respond to relevant visual stimuli contralateral to the lesions. In this study, we investigated the pattern of ho... Spatial neglect syndrome with cerebral lesions is characterized by the ina-bility to orient, report, or respond to relevant visual stimuli contralateral to the lesions. In this study, we investigated the pattern of horizontal visual search in a large space;this search was performed by patients with right hemisphere damage caused by cerebrovascular disease. The neck rotation angle and search time in each increment were continuously recorded during the task, and quantitative data of the measurements were collected. Head position during the visual search task in a large space (%) was then calculated. We set angular bands in increments of 5 degrees from the midline on the left and right sides, and calculated the total search time in each angular band. In patients with unilateral spatial neglect (USN), the search time in the angular band of 5 - 9 on the right side was significantly longer (with USN 16.7%, without USN 4.5%, t = 2.52, df = 16, p < 0.05). Furthermore, in patients with neglect in the leftmost end area in a large space, the search time was significantly shorter in the angular band of 1 - 4 degrees to the left (with neglect 13.1%, without neglect 23.7%, t = 2.13, df = 16, p < 0.05), and tended to be long in the angular band of 5 - 9 to the right. The neck rotation angle and pattern during the search task in a large field deviated slightly to the right, and the search time slightly to the left was short. We believe that these results support the rightward deviation of the search pattern and frame of USN patients. 展开更多
关键词 Head POSITION NECK ROTATION angle UNILATERAL Spatial NEGLECT visual Exploration
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Makeup Activates Brain Activity in Visually Impaired Persons: Evaluation by Functional Magnetic Resonance Imaging
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作者 Katsushi Taomoto Kaho Oishi +5 位作者 Hiroshi Matsunaka Yumi Murakami Yoshihiro Kuga Shinsuke Hashimoto Hideyuki Ohnishi Koji Abe 《Journal of Cosmetics, Dermatological Sciences and Applications》 2021年第2期140-154,共15页
Cosmetics are used to improve physical appearance, but the benefits may be limited to people without visual impairment. The importance of attractiveness among blind persons has not been assessed. We investigated the i... Cosmetics are used to improve physical appearance, but the benefits may be limited to people without visual impairment. The importance of attractiveness among blind persons has not been assessed. We investigated the influence of makeup on brain activity of blind persons using functional magnetic resonance imaging (fMRI). Participants were 7 blind females (BFs) who learned to fully apply makeup and 9 mostly age-matched normally sighted females (NSFs). Brain activity was measured using fMRI before and after application of makeup and during a makeup image task in each state. In the default mode network at rest, there was no difference between the BFs and NSFs. However, a lateral visual network to the opposite side was observed in the NSFs, whereas no such network was noted in the BFs. A weak network was noted in the BFs in the occipital fusiform gyrus and temporal occipital fusiform cortex, and an extensive visual area network defect was noted. Also, activity after makeup application was significantly higher in the nucleus accumbens, pallidum, and hippocampus. Activity in the right middle cingulate gyrus, right cerebral white matter, and right anterior cingulate gyrus was higher before makeup in both BFs and NSFs, and the activity was significantly higher and more extensive in the BFs. In conclusion, applying makeup is a personally rewarding activity, even for BFs, as it strongly activates the reward system and the reward/memory system network, even in the absence of a visual area network. 展开更多
关键词 Functional Magnetic Resonance Imaging visually Impaired Persons Brain Activity MAKEUP female
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FASHION TRENDS IN DESIGN OF FEMALE CLASSICAL JACKETS
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作者 V E.Kuzmichev O.N.kolodeznaya 《武汉科技学院学报》 2004年第6期117-122,共6页
The mathematical description of clothes shape change is made by the example of a European female classical jacket. As objects of research graphic representations of female classical jackets have been taken from women&... The mathematical description of clothes shape change is made by the example of a European female classical jacket. As objects of research graphic representations of female classical jackets have been taken from women's fashion magazines of the middle XX-the beginnings of XXI centuries published in France, Germany, Russia, Poland,Italy, U.S.A. For visual identification of female jacket models of the different time we product the nomenclature of the quantitative parameters of the internal form with use of the chosen more important information points is developed,Revealing of objectively existing laws of jacket form constructions is carried out with use of correlative and regressive analyses. The system of a few linear equations for the description, constructions and comparisons of jacket form characteristics of the researched periods are received. Graphic forms of representation of possible zones for information points moving are offered. Using quantitative information about this parameters changed in the period with 1955 on 2002 received by means of our special instrument we proved the constant cyclic character of change them. Knowledge the common rules of change of the chosen form parameters allow us distributing the established lows to 10th of XXI century as a possible perspective direction in fashion trends for designers and sewing industry. Due to establishing rules that took place in forming European female jacket during latest 50 years almost we offered the instrument for predicting the main possible changes in composite-structural construction until lOth of XXI century。 展开更多
关键词 女性服装 夹克 设计 流形趋势
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激光周边虹膜切除术在原发性急性闭角型青光眼患者中的应用效果及对眼压和视力的影响 被引量:1
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作者 管小丹 雍智谋 +1 位作者 程锦 陈欣 《临床医学研究与实践》 2024年第16期121-124,共4页
目的探讨激光周边虹膜切除术在原发性急性闭角型青光眼患者中的应用效果及对眼压和视力的影响。方法以随机法选取2020年10月至2022年10月的80例(86眼)原发性急性闭角型青光眼患者作为研究对象,所有患者给予激光周边虹膜切除术治疗。观... 目的探讨激光周边虹膜切除术在原发性急性闭角型青光眼患者中的应用效果及对眼压和视力的影响。方法以随机法选取2020年10月至2022年10月的80例(86眼)原发性急性闭角型青光眼患者作为研究对象,所有患者给予激光周边虹膜切除术治疗。观察患者术前、术后的眼压、视力水平、房角关闭情况及角膜内皮细胞指标。结果术后,患者的眼压低于术前,视力水平高于术前(P<0.05)。术后,患者的前房角角度(ACA)、前房容积(ACV)和周边前房深度(PACD)均显著大于术前(P<0.05);术后,患者的中央前房深度(CACD)与术前比较,差异无统计学意义(P>0.05)。术后,患者的平均内皮细胞面积(AVE)、最大细胞面积(MAX)、最小细胞面积(MIN)、细胞密度(CD)、变异系数(CV)及细胞面积标准差(SD)与术前比较,差异无统计学意义(P>0.05)。结论原发性急性闭角型青光眼患者早期给予激光周边虹膜切除术治疗对降低眼压有明显效果,且还能提升视力水平,改善房角关闭情况,对患者角膜内皮细胞的损伤较小,安全性较高。 展开更多
关键词 原发性急性闭角型青光眼 激光周边虹膜切除术 视力 眼压
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超声波干涉及可视化实验装置研制
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作者 王亚平 韩睿 +2 位作者 周志赋 宋哲 滕永平 《实验室研究与探索》 CAS 北大核心 2024年第5期52-55,共4页
为了丰富大学物理声学实验内容,研制了一种多功能超声波干涉实验装置。基于空气介质设计了双振子干涉声速测量实验和半波损失验证实验。分别采用干涉声场测量法和干涉条纹移动法进行声速测量实验,并利用示波器实现了干涉声场声压分布的... 为了丰富大学物理声学实验内容,研制了一种多功能超声波干涉实验装置。基于空气介质设计了双振子干涉声速测量实验和半波损失验证实验。分别采用干涉声场测量法和干涉条纹移动法进行声速测量实验,并利用示波器实现了干涉声场声压分布的可视化。分别以有机玻璃、橡胶和玻璃为反射面材料,利用干涉法验证掠入射条件下的半波损失现象,并估算出掠入射角的范围。该实验装置实验现象明显、可操作性强,获评北京市第十六届大学生物理实验竞赛一等奖。 展开更多
关键词 超声波干涉 声速测量 可视化 半波损失 掠入射角
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