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Search Results: 1 - 10 of 9313 matches for " 迟源 "
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转胯回旋运动对女性压力性尿失禁的疗效观察

,
- , 2017,
Abstract: ?目的?探讨转胯回旋运动对女性压力性尿失禁的疗效和安全性。方法?将62例诊断为轻、中度压力性尿失禁患者,按随机数字表法分成研究组30例和对照组32例,研究组给予转胯回旋运动,对照组给予盆底肌锻炼(Kegel)、两组的疗程均为16周。采用1 h尿垫试验、盆底肌肉电位测定和尿失禁问卷表简表(ICI-Q-SF)评分进行评定。结果?治疗后两组盆底肌肉电位强度与治疗前比较, 差异有统计学意义(P<0.05);1 h尿垫试验漏尿量、ICI-Q-SF评分与治疗前比较,差异有统计学意义(P<0.05);研究组治疗16周后各指标与对照组比较,差异有统计学意义(P<0.05)。未发生不良事件。结论?转胯回旋运动对压力性尿失禁有一定的改善作用,值得推广。
基于高光谱成像技术生长发育后期苹果糖度的无损检测
Hyperspectral imaging based non-destructive prediction of soluble solids content in apples at late development period

孟田,王转卫,,,
- , 2016,
Abstract: 【目的】研究应用高光谱成像技术无损检测生长发育后期苹果糖度的可行性。【方法】以生长发育后期的“富士”苹果为对象,基于采集到的波长900~1 700 nm高光谱数据,建立预测苹果糖度的偏最小二乘(PLS)、支持向量机(SVM)和极限学习机(ELM)模型,并比较主成分分析(PCA)和连续投影算法(SPA)2种数据压缩或特征波提取方法对预测模型精度的影响。【结果】采用PCA方法可将全光谱压缩至9个主成分,采用SPA从全光谱的230个波长中提取出了13个特征波长,两者相比,SPA能更有效地提高模型预测能力。预测生长发育后期苹果糖度的最佳模型为基于SPA的PLS模型,其预测集相关系数为0.945,均方根误差为0.628°Brix。【结论】高光谱图像技术可以用于生长发育后期苹果糖度的无损检测,该技术的应用将有助于指导苹果的种植和适时采收。
【Objective】This study investigated the feasibility of using hyperspectral image technique to nondestructively predict soluble solids content (SSC) of apples at the late development period. 【Method】‘Fuji’ apples were used as samples to acquire hyperspectral images from 900 nm to 1 700 nm.Three prediction models,partial least squares (PLS),support vector machine (SVM) and extreme learning machine (ELM),were built.The effect of characteristic wavelength selection method of successive projections algorithm (SPA) and data compression method of principal component analysis (PCA) were compared according to model predication accuracy.【Result】Nine principal components were compressed by PCA and 13 characteristic wavelengths were selected by SPA from the full spectra (230 wavelengths).SPA improved the prediction performance effectively.The best model for SSC prediction of apples at late development period was SPA-PLS,whose correlation coefficient and root mean square error of prediction were 0.945 and 0.628 °Brix,respectively.【Conclusion】Hyperspectral imaging technique could be used as a noninvasive method for predicting SSC of apples at late development period.This technique is helpful to instruct apple planting and harvest timely
CO在Pt/Al2O3催化剂上的TPD和TPSR
李启,立广,郇述刚,宋彩琴,郭建学
催化学报 , 1986,
Abstract: ?
青年结直肠癌的临床病理特点分析
Clinical and Pathological Characteristics of Colorectal Cancer in Young Patients
 [PDF]

杨磊, 欧阳书睿, 张思琴, 郭睿, 林峰洋, 魏佳, 贾洪, 刘莹, 曾彦彰, 冬梅, 杨烈, 于永扬, 周总光
World Journal of Cancer Research (WJCR) , 2014, DOI: 10.12677/WJCR.2014.42006
Abstract:

目的:分析我国青年结直肠癌(colorectal cancer, CRC)患者的临床病理特点。方法:回顾性分析136例CRC,以年龄为界分为3组:青年组(年龄 ≤ 40岁)、中年组(年龄:40~60岁)和老年组(年龄 > 60岁),比较分析青年结直肠癌的临床病理特点,包括患者是否有合并症、肿瘤位置、TNM分期、病理类型和分化程度等。结果 青年、中年及老年组患者合并基础疾病发生率分别为59.0%、18.7%和8.2%,有统计学差异(P < 0.05)。肿瘤TNM分期中,中、老年患者肿瘤T4分期显著高于青年组(P < 0.05),分别为52.1%、64.1%和20.4%。青年患者组肿瘤N2期所占比例高于中、老年组(P < 0.05),分别为22.5%、16.6%和5.1%。三组患者的总TNM分期、肿瘤位置、TNM分期、病理类型和分化程度等并无统计学差异。结论:青年结直肠癌患者肿瘤T4分期较少,而肿瘤淋巴结转移率高,提示青年结直肠癌患者肿瘤更易于淋巴结转移。
 Objective: Analysis of clinical and pathological characteristics of colorectal cancer in young patients. Methods: A retrospective analysis of 136 cases of CRC, which was divided by age into three groups: young group (age ≤ 40 years), middle-aged group (age: 40 to 60 years) and older group (age > 60 years). Compare the differences of clinical and pathological characteristics among them, including whether the patient has complications, tumor location, TNM stage, histological type, degree of differentiation and depth of invasion. Results: Patients with basic disease incidence were 59.0% in older group, 18.7% in middle-aged group and 8.2% in young group, a significant difference (P < 0.05). Elderly patients with T4 tumor staging were more than young group (P < 0.05), and the proportion respectively is 52.1% in middle-aged group, 64.1% in older group and 20.4% in young group. In N stage, the young group was higher than the others in the proportion of N2 stage, a significant difference (P < 0.05), and the proportion respectively is 22.5%, 16.6% and 5.1%. Conclusion: In TNM stage system, young patients in T4 stage are fewer, but the lymph node metastasis rate is higher, suggesting that CRC in young patients is easier to lymph node metastasis.

江西省南昌市城市绿地儿童安全性调查研究
Study on Children’s Safety in Urban Green Space in Nanchang, Jiangxi Province
 [PDF]

, 钟乐
World Journal of Forestry (WJF) , 2015, DOI: 10.12677/WJF.2015.44010
Abstract:
城市绿地是城市生态系统的重要组成部分,城市绿地儿童安全性评价对完善城市绿地系统规划具有重要的科学意义。本研究基于问卷调查法初步掌握了南昌市儿童经常活动的城市绿地,在此基础上通过抽样方法选取了南昌市8个代表性的城市绿地(包括公园、广场等),对南昌市城市绿地儿童安全性进行了调查研究,结果表明:植物、地形、水体、设施、材质是影响儿童安全的主要内部因素;而交通和管理是影响儿童安全的主要外部因素。南昌市城市绿地儿童安全性总体不容乐观,有待通过植物空间营造、设施配套改善、提升管理水平等途径加强儿童安全性,本研究为城市绿地儿童安全性评价提供了指导依据。
Urban green space is the important part of the urban ecosystem, and the children’s safety assessment of urban green space has important scientific significance for improving the urban green space system planning. Based on the questionnaire, this study initially knows the urban green space where children usually do activities in Nanchang, and based on the sampling method, we select eight representatives of urban green space (including parks, squares, etc.) and survey the children’s safety in urban green space. The results show that plants, terrain, water, facilities, and material are the main internal factors affecting children’s safety, while traffic and management are the main external factors which influence the safety of children. For children’s safety, the overall condition of urban green space in Nanchang is not optimistic and should strengthen the security of children through the creation of plant space, facilities improvement, and enhancement of management. The research provides guidance for children’s safety evaluation of urban green space.
二尖瓣球囊扩张术对二尖瓣狭窄合并心房颤动患者的近期临床和血液动力学的影响
舒茂琴,何国祥,宋治远,路湘,胡厚,冉擘力
第三军医大学学报 , 2005,
Abstract:
电涡流式传感器液面测量控制系统
Control System of Liquid Level Measurement Based on Eddy Current Sensor
 [PDF]

李阳, 宗涛
Computer Science and Application (CSA) , 2016, DOI: 10.12677/CSA.2016.68056
Abstract: 随着微电子技术的不断发展,智能化程度的日益加深,以及国家相关政策支持力度的不断加大,其在测量领域发挥的作用也日见显著。在工业生产与日常生活中,经常需要进行液面高度测量,采用微电子技术作为控制系统具有小型化、低功耗、可靠性高的优点。文中介绍了一种电涡流式位移传感器,是一以单片机为核心的液面高度测量电子控制系统。本控制系统以单片机为核心,控制液面高度数据的采集、管理以及远程通讯,具有体积小、维护容易、可靠性高、实时测量并显示液面高度值、记录历史数据、远程传输等优点。本文综合应用了传感器、微控制器等领域的知识,详细介绍了液面高度测量电子控制系统的整体结构及控制方法。本文的研究实现了液面测量电子控制系统的小型化,智能化,并基于接触式测量方法进一步确保了测量的精准度,从而降低了测量装置的复杂性,节约了材料,具有重要的现实意义和显著的社会效益。
With the development of microelectronics technology, increasingly intelligent and relevant national policies and support growing, its role in the measurement region has become more significant. In industrial production and daily life, it is often necessary for liquid level measurement, of which microelectronic technology is adopted as the control system, having advantages of miniaturization, low power consumption, and high reliability. Eddy current type displacement sensor is introduced in this paper, based on the single chip microcomputer electronic control system of liquid height measurement. This system uses single-chip microcomputer as the core control system, and controls liquid level data collection, management, and telecommunications. Small size, easy maintenance, high reliability, real time measurement and displaying the liquid height value, recording historical data remote transmission and so on are advantages of this system. This paper comprehensively applies knowledge in the areas of sensors, micro-controller, and introduces in detail the overall structure and control methods of electronic control system of liquid height measurement. This study implements the miniaturization and intelligentization of electronic control system of liquid level measurement, and based on contact measuring method ensures the measurement accuracy, which can reduce the complexity of measuring devices, save material, having important practical significance and significant social benefits.
不同温度时间对草本植物标本烘干质量的影响
Effects of Different Temperatures and Different Times on the Drying Quality of Herbaceous Plants
 [PDF]


Botanical Research (BR) , 2016, DOI: 10.12677/BR.2016.54017
Abstract: 标本烘干是标本制作重要步骤之一,本文通过研究不同烘干温度与不同烘干时间处理对标本质量的影响,以提高标本保存质量。以6种草本植物为材料,采用不同温度(35℃、45℃、55℃和65℃)和不同时间(12 h、24 h和36 h)进行处理,采用标准比色卡和水活度测量仪分别对植物标本叶色和水分活度进行比对和测试。结果表明:草本植物的最佳烘干条件为55℃、36 h,在该烘干条件下标本颜色退化程度最低,标本最稳定的水分活度值为0.20 Aw。
The specimens drying is one important step of specimen making. In this paper, effects of different drying temperature and drying time on the specimen’s quality were studied to improve the con-served quality of samples. Six herbaceous plants were treated under different temperatures (35?C, 45?C, 55?C and 65?C) and different times (12 h, 24 h and 36 h), the leaves’ colors were compared with the colourimetric card and water activity under different treatments was tested. The results showed that the specimens have been optimal situation after drying under 55?C for 36 h, which has the lowest fading degree and stabilized water activity (0.20 Aw).
血流储备分数在冠状动脉中度狭窄长病变中的应用价值及右房压对其的影响
王明礼,刘建平,钟理,胡厚,路湘,景涛,李永华,吕建峰,王振华,仝识非,宋治远
第三军医大学学报 , 2014,
Abstract: 目的初步探讨血流储备分数(fractionalflowreserve,FFR)在冠状动脉中度狭窄长病变中的诊治价值和右房压(rightatrialpressure,RAP)对其的影响。方法共纳入我院2013年9月至2014年7月冠状动脉造影(coronaryarteriography,CAG)显示至少有一支冠状动脉为中度狭窄(50%~70%)的83例住院患者,依冠状动脉病变长度分组(A组:<20mm,n=42;B组:20~35mm,n=27;C组:≥36mm,n=14)。测定FFR,并计算结合右房压计算的FFR(incorporationofrightatrialpressureintothecalculationofFFR,FFRrap),比较各组间及组内的差异。FFR<0.75,行经皮冠状动脉介入治疗(percutaneouscoronaryintervention,PCI);FFR>0.80,最佳药物治疗。FFR介于0.75~0.80之间的患者,依据FFRrap值决定治疗策略:FFRrap<0.75,行PCI;FFRrap≥0.75则行最佳药物治疗。随访治疗后3个月内主要不良心血管事件(majoradversecardiacevents,MACE),即心源性死亡、非致死性心肌梗死、心绞痛发作情况、靶血管及靶病变再次血运重建的发生情况。结果组间比较显示:FFR和FFRrap平均值随病变长度增加均显著降低(F=2.524,P<0.05;F=1.656,P<0.05);各组内结合右房压计算的FFRrap均值显著低于测定的FFR均值[A组(0.84±0.19)vs(0.78±0.14),P<0.05;B组(0.75±0.14)vs(0.72±0.11),P<0.05;C组(0.67±0.11)vs(0.63±0.07),P<0.05]。随访3个月内药物治疗和PCI术后MACE发生情况无明显差异,整体不良心血管事件发生率为13.3%。结论冠状动脉中度狭窄病变越长,FFR值相对偏低。当FFR介于0.75~0.80之间时,结合右房压计算的FFR能够更精确地判断病变远端的血流情况,指导临床治疗策略的选择。
The application of three dimensional seismic interpretation to development of oilfieids
三维地震解释技术在油田开发中的应用

红霞
地球物理学进展 , 2010,
Abstract: In the reseach of development stage of oilfields,the application study of three dimensional seismic interpretation is indispensable. Due to complex geology of Liaohe oilfields the application of horizontal wells packed data like seismic data must be used to portray subsurface geologic bodies more accurately and ascertain microtectonics and minor faults. It allows us to achieve thin reservoir forecast,and trace reservoirs, and direct horizontal well drilling.The examples of thin reservoir forecast and minor faults identification through seismic interpretation technology show the value of precise seismic interpretation technology . Along with the development of seismic interpretation especially four-dimensional seismic,its application is more wide in development of oilfields. Seismic interpretation , geological and logging are combined to form a comprehensive research technique that is the trend required for oil field development.
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