检索结果-南通市图书馆

Clinical efficacy and mechanism study of mid-frequency anti-snoring device in treating moderate obstructive sleep apnea-hypopnea syndrome

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第5期12卷 942-950页

作者： Bao Qian zhan-Jun Chen yong-Sheng Wang Xiao-Yan Hu Xiao-Biao Hu yong-Hua Zheng Pulmonary Medicine Shanghai Jinshan Tinglin HospitalShanghai 201505China Radiology Medicine Shanghai Jinshan Tinglin HospitalShanghai 201505China

BACKGROUND Obstructive sleep apnea-hypopnea syndrome(OSAHS)is primarily caused by airway obstruction due to narrowing and blockage in the nasal and nasopha-ryngeal,oropharyngeal,soft palate,and tongue base *** mid-frequency anti-snoring device is a new technology based on sublingual nerve *** principle is to improve the degree of oropharyngeal airway stenosis in OSAHS patients under mid-frequency wave ***,there is a lack of clinical application and imaging *** We selected 50 patients diagnosed with moderate OSAHS in our hospital between July 2022 and August *** underwent a 4-wk treatment regimen involving the mid-frequency anti-snoring device during nighttime *** the treatment,we monitored and assessed the sleep apnea quality of life index and Epworth Sleepiness Scale ***,we performed computed tomo-graphy scans of the oropharynx in the awake state,during snoring,and while using the mid-frequency anti-snoring ***-sectional area measurements in different states were taken at the narrowest airway point in the soft palate posterior and retrolingual *** Compared to pretreatment measurements,patients exhibited a significant reduction in the apnea-hypopnea index,the percentage of time with oxygen saturation below 90%,snoring frequency,and the duration of the most prolonged apnea *** lowest oxygen saturation showed a notable increase,and both sleep apnea quality of life index and Epworth Sleepiness Scale scores *** computed tomography scans revealed that in OSAHS patients cross-sectional areas of the oropharyngeal airway in the soft palate posterior area and retrolingual area decreased during snoring compared to the awake ***,during mid-frequency anti-snoring device treatment,these areas increased compared to *** The mid-frequency anti-snoring device demonstrates the potential to enhance various sleep parameters in pat

关键词： Mid-frequency anti-snoring device Obstructive sleep apnea-hypopnea syndrome Sleep monitoring Oropharyngeal computed tomography Curative effect

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

永远的探索

美术 2020年第5期629卷 78-81页

作者：詹勇江苏省国画院

自2003年大学毕业至今,我几乎有一大半的时间在潜心研习中国画的线条。线条是中国画最核心的元素,是对中国绘画艺术最简练的概括,是描绘物象的结构骨架,表达主观意识、情感的重要手法。它具有情感性的内在本质,体现出多样与统一、对比... 详细信息

自2003年大学毕业至今,我几乎有一大半的时间在潜心研习中国画的线条。线条是中国画最核心的元素,是对中国绘画艺术最简练的概括,是描绘物象的结构骨架,表达主观意识、情感的重要手法。它具有情感性的内在本质,体现出多样与统一、对比与和谐、节奏与韵律。它又与所描绘的形体之间不存在必然的依附关系,因而获得了极大的自由,可以追求更多形体之外的东西,并赋予它更多样的内涵,使线条本身具有独立的意义。

关键词：中国绘画艺术节奏与韵律结构骨架中国画依附关系主观意识多样与统一情感性

在线全文

学校读者我要写书评

暂无评论

联合产权制度下的劳动产权分析

江汉论坛 2005年第8期 9-12页

作者：湛泳南开大学经济学院天津300071

作为微观经济基础的企业,采取何种产权制度及其实现形式是关系改革最终成败和社会生产力能否持续发展的关键。本文试图阐述联合产权制度中的劳动产权,首先对劳动产权的概念进行了定义并其进行了界定,其次区分了劳动产权和劳动力产权,最... 详细信息

作为微观经济基础的企业,采取何种产权制度及其实现形式是关系改革最终成败和社会生产力能否持续发展的关键。本文试图阐述联合产权制度中的劳动产权,首先对劳动产权的概念进行了定义并其进行了界定,其次区分了劳动产权和劳动力产权,最后指出了劳动产权基于联合产权制度下的运用。

关键词：劳动产权联合产权制度协作激励

High Order Compact Difference Scheme and Multigrid Method for 2D Elliptic Problems with Variable Coefficients and Interior/Boundary Layers on Nonuniform Grids

在线全文

学校读者我要写书评

暂无评论

Journal of Applied Mathematics and Physics 2015年第5期3卷 509-523页

作者： Bin Lan yongbin Ge Yan Wang yong zhan Institute of Applied Mathematics and Mechanics Ningxia University Yinchuan China Department of Environment and Architecture University of Shanghai for Science and Technology Shanghai China

In this paper, a high order compact difference scheme and a multigrid method are proposed for solving two-dimensional (2D) elliptic problems with variable coefficients and interior/boundary layers on nonuniform grids. Firstly, the original equation is transformed from the physical domain (with a nonuniform mesh) to the computational domain (with a uniform mesh) by using a coordinate transformation. Then, a fourth order compact difference scheme is proposed to solve the transformed elliptic equation on uniform girds. After that, a multigrid method is employed to solve the linear algebraic system arising from the difference equation. At last, the numerical experiments on some elliptic problems with interior/boundary layers are conducted to show high accuracy and high efficiency of the present method.

关键词： Elliptic Equation Coordinate Transformation High Order Compact Difference Scheme Multigrid Method Interior/Boundary Layer

Redox-responsive polymer prodrug/AgNPs hybrid nanoparticles for drug delivery

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Redox-responsive polymer prodrug/AgNPs hybrid nanoparticles ...

Synthesis of Perfluorinated Oxetane and Surface Properties of Its Cationic UV Cured Coating as a Reactive Additive

中国化学会第五届全国生物物理化学会议（NCBPC5）

作者：邱亮 Linfei Zhao Chengfen Xing yong zhan Institute of Biophysics Hebei University of Technology

＜正＞A drug carrier system of the hybrid nanoparticles based on the redox-responsive P[（2-（（2-（（camptothecin）-oxy） ethyl）disulfanyl）ethylmethacrylate）-co-（2-（D galactose）methylmethacryl-ate）]（P（MACPTS-co-MAGP）） and AgNPs is developed to deliver the anti-cancer drug camptothecin（CPT） and monitor the drug release by the recovery of the fluorescence of CPT.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2012年第3期28卷 550-554页

作者： zhan Fu,zhanG yong and SHI Wen-fang * CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei 230026,P.R.China CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China

Perfluorinated oxetane(F-OXE) was synthesized via the ring-opening reaction of epoxy-functionalized oxetane with 2-(perfluorooctyl)ethanol under base-catalysis,and characterized by FTIR and 1 H NMR *** synthesized F-OXE was mixed with a commercial cationic UV curable resin,UVR6110,as a reactive additive at different mass fractions,and UV-irradiation cured in the presence of triphenylsulphonium hexafluoroantimonate as a cationic *** surface property study of cured films indicated that both hydrophobicity and oleophobicity were effectively enhanced by the addition of a small amount of *** contact angles of water and 1-bromonaphthalene on the surface of the cured film with 1.0%(mass fraction) F-OXE loading increased from 72 o to 106o and from 0o to 76o,respectively,compared with those on the surface of the film without F-OXE *** surface tension of UVR6110-F-OXE cured film decreased greatly from 55.6 mN/m of referenced film to 22.9 mN/*** results from X-ray photoelectron spectroscopy analysis confirm the migration and aggregation effect of perfluoroalkyl group to the surface of cured *** 1%(mass fraction) addition of F-OXE,the relative content of fluorine greatly increased from 0.70%(mass fraction) in the interior of the cured film to 36.73%(mass fraction) at the surface of the cured film,whereas those of carbon and oxygen decreased from 73.29% to 40.96% and from 26.00% to 22.30%,respectively.

关键词： Cationic UV curing Oxetane Perfluoroalkyl Water and oil repellence

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

一种模块式自动化激光诱导击穿光谱测控系统

光电子．激光 2015年第8期26卷 1561-1567页

作者：杨诚詹永照常州信息职业技术学院江苏常州213164 江苏大学计算机科学与通信工程学院江苏镇江212013

为提高激光诱导击穿光谱（LIBS）仪对不同型号部件的兼容性,优化LIBS仪参数和测试流程,研制了一种模块式的自动化LIBS测控系统。实际测试表明,研制的测控系统可以兼容市场上大部分类型的LIBS部件,提升了LIBS仪对不同部件的兼容性及自身... 详细信息

为提高激光诱导击穿光谱（LIBS）仪对不同型号部件的兼容性,优化LIBS仪参数和测试流程,研制了一种模块式的自动化LIBS测控系统。实际测试表明,研制的测控系统可以兼容市场上大部分类型的LIBS部件,提升了LIBS仪对不同部件的兼容性及自身的灵活性,其中光谱仪、激光器等核心部件已测试兼容至少3种不同型号的部件。此外,设计多层迭代式自动化测试流程,提高了LIBS仪参数优化过程的效率。在延时时间的优化测试中,延时时间的优化范围为1.28-18.28μs,步进值分别为1.0、0.5、0.2和0.1μs时,与手动测试平台相比,测试效率分别提升了2.81、3.15、3.72和4.15倍。

关键词：激光器激光诱导击穿光谱(LIBS) 测控系统部件

Quantitative detection of Streptococcus mutans and bacteria of dental caries and no caries groups in permanent teeth from a north China population

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2012年第21期125卷 3880-3884页

作者： WANG zhan-yong WANG Jian-qiu ZHOU Yan ZHAO Dong XIAO Bai Laboratory Research Center Department of Dentistry Beijing-Chao-Yang Hospital CapitalMedical University Beijing 100020 China

Background Streptococcus mutans （S. mutans） is the prime pathogen of dental caries. There are few reports that studied the relationship between S. mutans, bacteria and dental caries in permanent teeth when compared to those in primary teeth. This study aimed to detect S. mutans and bacteria of dental caries and non-caries groups in permanent teeth from a north China population by real-time polymerase chain reaction （PCR） and compare the relationship between the number of these bacteria and the prevalence of dental caries in permanent teeth.

关键词： real-time polymerase chain reaction, streptococcus mutans dental caries

Damage characteristics of fused silica under low-temporal coherence light

在线全文

学校读者我要写书评

暂无评论

High Power Laser Science and Engineering 2024年第3期12卷 77-83页

作者： Chong Shan Lingbao Kong Fujian Li yong Cui Lailin Ji Quan Zheng Daxing Rao Ruijing He Xiaohui Zhao Yuanan Zhao zhan Sui Shanghai Engineering Research Center of Ultra-precision Optical Manufacturing School of Information Science and TechnologyFudan UniversityShanghaiChina Shanghai Institute of Laser Plasma China Academy of Engineering PhysicsShanghaiChina Key Laboratory of High Power Laser Materials Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina

The damage characteristics of fused silica were investigated under low-temporal coherence light(LTCL).It was found that the laser-induced damage threshold(LIDT)of fused silica for the LTCL was lower than that of the single longitudinal mode pulse laser,and for the LTCLs,the LIDTs decrease with the increasing of laser bandwidth,which is not consistent with the temporal spike *** is due to the nonlinear self-focusing effect and multi-pulse accumulation *** specific reasons were analyzed based on theoretical simulation and experimental *** research work is helpful and of great significance for the construction of high-power LTCL devices.

关键词： laser-induced damage threshold low-temporal coherence light nonlinear self-focusing effect temporal spike