检索结果-南通市图书馆

Color space quantization-based clustering for image retrieval

Frontiers of Computer Science 2017年第6期11卷 1023-1035页

作者： le DOnG Wenpu DOnG ning FEnG Mengdie MAO Long CHEn Gaipeng KOnG School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 611731 China

Color descriptors of an image are the most widely used visual features in content-based image retrieval sys- tems. In this study, we present a novel color-based image retrieval framework by integrating color space quantization and feature coding. Although color features have advantages such as robustness and simple extraction, direct processing of the abundant amount of color information in an RGB image is a challenging task. To overcome this problem, a color space clustering quantization algorithm is proposed to obtain the clustering color space （CCS） by clustering the CIE1976L＊a＊b＊ space into 256 distinct colors, which ade- quately accommodate human visual perception. In addition, a new feature coding method called feature-to-character coding （FCC） is proposed to encode the block-based main color fea- tures into character codes. In this method, images are repre- sented by character codes that contribute to efficiently build- ing an inverted index by using color features and by utilizing text-based search engines. Benefiting from its high-efficiency computation, the proposed framework can also be applied to large-scale web image retrieval. The experimental results demonstrate that the proposed system can produce a signifi- cant augmentation in performance when compared to block- based main color image retrieval systems that utilize the tra- ditional HSV（Hue, Saturation, Value） quantization method.

关键词： content-based image retrieval color spacequantization feature coding inverted index

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Windows WDM设备驱动程序开发指南

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丛书名：软件开发技术丛书

2000年

作者：（美）（C.坎特）Chris cant 孙义等译

本书主要介绍Windows 98和Windows 2000新的驱动程序模型(WDM)。描述了WDM设备驱动程序的结构、功能和开发方法；通过实际的设备驱动程序例子，说明WDM设备驱动程序的实现技术、测试和调试方法；介绍了本书提供的一个调试软件debugPrint... 详细信息

ISBN: (数字)7111077091

ISBN: (纸本)7111077091

本书主要介绍Windows 98和Windows 2000新的驱动程序模型(WDM)。描述了WDM设备驱动程序的结构、功能和开发方法；通过实际的设备驱动程序例子，说明WDM设备驱动程序的实现技术、测试和调试方法；介绍了本书提供的一个调试软件debugPrint;说明如何在客户驱动程序中使用USB驱动程序接口（USBDI)访问USB设备，以及如何利用HID类驱动程序以标准方法访问多种输入设备。

关键词：窗口软件程序设计

来源：畅想之星图书光盘版（南... 评论

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认知-运动双重引导疗法在维持性血液透析肥胖型肌少症患者中的应用价值

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护理实践与研究 2024年第9期21卷 1282-1288页

作者：王露叶蕾王丽乐小艳占艺上饶市人民医院(江西省上饶市 334000)

目的探讨认知-运动双重引导疗法在维持性血液透析肥胖型肌少症患者中的应用效果。方法选取江西省上饶市人民医院2021年1月-2023年1月115例维持性血液透析肥胖型肌少症患者为研究对象,按照组间基线资料可比的原则分为对照组57例和观察组5... 详细信息

目的探讨认知-运动双重引导疗法在维持性血液透析肥胖型肌少症患者中的应用效果。方法选取江西省上饶市人民医院2021年1月-2023年1月115例维持性血液透析肥胖型肌少症患者为研究对象,按照组间基线资料可比的原则分为对照组57例和观察组58例。对照组给予常规的护理与训练,观察组实施认知-运动双重引导疗法,观察比较两组患者身体功能相关指标、日常活动能力及生活质量。结果干预后,观察组握力、骨骼肌质量及步行速度的改善效果均优于对照组(P<0.05),观察组生活能力、平衡与移动能力改善效果均高于对照组(P<0.05),观察组生活质量评分高于对照组,差异均有统计学意义(P<0.05)。结论认知-运动双重引导疗法对提高维持性血液透析肥胖型肌少症患者身体功能、日常活动能力及生活质量等方面具有较高的优势与可行性,值得临床结合实际来应用和改进。

关键词：认知-运动双重引导疗法维持性血液透析肥胖型肌少症身体功能生活质量

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简单沉积方程应用于层序地层学

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渤海石油地质情报 1991年第4期 1-11页

作者： cant,DJ 葛玲

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基于个体需求层次的舒适护理对晚期肿瘤患者心理状态、睡眠质量及生存质量的影响

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护理实践与研究 2024年第4期21卷 589-595页

作者：乐利芳杨海霞冯静黄巧周文凤江西省抚州市第一人民医院江西省抚州市344100

目的探讨基于个体需求层次的舒适护理对晚期肿瘤患者心理状态、睡眠质量及生存质量的影响。方法选取2022年5月—2023年5月抚州市第一人民医院肿瘤科收治的70例晚期肿瘤患者作为研究对象,按照组间基本特征具有可比性的原则将其分为对... 详细信息

目的探讨基于个体需求层次的舒适护理对晚期肿瘤患者心理状态、睡眠质量及生存质量的影响。方法选取2022年5月—2023年5月抚州市第一人民医院肿瘤科收治的70例晚期肿瘤患者作为研究对象,按照组间基本特征具有可比性的原则将其分为对照组和观察组,每组35例,对照组采用常规护理;观察组采用基于个体需求层次的舒适护理,两组均干预至出院。比较两组入院时与出院时心理状态、死亡态度、疼痛情况、睡眠质量及生存质量。结果干预前,两组患者焦虑评分、抑郁评分、死亡态度量表评分、疼痛评分、睡眠质量评分、生存质量评分比较,差异无统计学意义(P>0.05);干预后观察组抑郁、焦虑量表评分低于对照组,差异有统计学意义(P<0.05);干预后,观察组死亡态度量表死亡恐惧、死亡逃避、逃离接受评分低于对照组,中性接受评分高于对照组,差异有统计学意义(P<0.05);干预后,观察组疼痛评分低于对照组,差异有统计学意义(P<0.05);干预后,观察组睡眠质量、失眠严重程度评分低于对照组,差异有统计学意义(P<0.05);干预后,观察组生存质量量表症状模块低于对照组,功能模块、总体健康状况评分高于对照组,差异有统计学意义(P<0.05)。结论基于个体需求层次的舒适护理应用于晚期肿瘤患者中可以有效改善患者抑郁、焦虑心理状态与患者死亡态度,降低患者死亡恐惧,此外,还可以有效缓解患者疼痛、失眠程度,提高其睡眠质量与生存质量。

关键词：个体需求层次舒适护理晚期肿瘤心理状态睡眠质量生存质量

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Expression of matrix metalloproteinase-1 and tissue inhibitor of metalloproteinase-1 in ulcerative colitis

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World Journal of Gastroenterology 2006年第37期12卷 6050-6053页

作者： Ying-de Wang Pei-Yun Yan department of Gastroenterology the First Affiliated Hospital of Dalian Medical University Dalian 116011 Liaoning Province China

AIM: To examine the expression of metalloproteinase-1 (MMP-1) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in the colonic mucosa of patients with ulcer- ative colitis (UC). METHODS: Reverse transcription-polymerase chain re- action (RT-PCR) and immunohistochemistry were used to study the expression of MMP-1 and TIMP-1 at both mRnA and protein levels in patients with UC and con- trols. The relationship between MMP-1 mRnA, TIMP-1 mRnA, MMP-1 mRnA/TIMP-1 mRnA ratio and the sever- ity of clinical symptoms of the patients with UC were also analyzed. RESULTS: The expression of MMP-1 mRnA and TIMP-1 mRnA in the ulcerated and inflamed colonic mucosa was signifi cantly higher than that in the non-inflamed colonic mucosa (P no statistically signif i- cant difference in the non-inflamed colonic mucosa of UC patients and normal controls (P > 0.05). The mRnA ex- pression of MMP-1 and TIMP-1 in ulcerated colonic mu- cosa of UC patients was increased by 80-fold and 2.2-fold, respectively when compared with the normal controls. In the inflamed colonic mucosa, the increase was 30-fold and 1.6-fold, respectively. Immunohistochemical analy- sis showed that among the ulcerated, inflamed, and non-inflamed colonic mucosae of UC patients and the normal controls, the positive rate of MMP-1 expression was 87%, 87%, 40% and 35% respectively, and the positive rate of TIMP-1 expression was 89%, 89%, 80% and 75%, respectively. Furthermore, the expression of MMP-1 mRnA, TIMP-1 mRnA and the MMP-1 mRnA/ TIMP-1 mRnA ratio were correlated with the severity of clinical symptoms (P nCLUSIOn: Excessive expression of MMP-1 in the diseased colonic mucosa causes excessive hydrolysis of the extracellular matrix (ECM) and ulceration in UC pa-tients. MMP-1 mRnA, TIMP-1 mRnA and MMP-1 mRnA/ TIMP-1 mRnA ratio can be used as biomarkers to judge the severity of clinical symptoms in patients with UC. Exogenous TIMP-1 or MMP-1 inhibitor therapy is a novel treatment for pati

关键词： Matrix metalloproteinase-1 Tissue inhibitor of metalloproteinase-1 Ulcerative colitis Reverse transcriptionpolymerase chain reaction Immunohistochemistry

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Current Zoology 2019年第5期65卷 527-534页

作者： Ke denG Wei LIU de-Hua WAnG State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina Chengdu Institute of Biology Chinese Academy of SciencesChengduSichuanChina University of Chinese Academy of Sciences BeijingChina

Kin selection theory predicts that individuals should generally behave less aggressively or more amicably towards relatives than ***,how individuals treat conspecifics depends on genetic relatedness but also on the ecological context,which influences the benefits and costs of their *** this study,we used microsatellite DnA markers and behavioral tests to examine the influence of kinship and proximity on the social behavior of Mongolian gerbils Meriones unguiculatus living in different social groups,and whether these effects varied with sex and *** recorded the duration of 4 behavioral categories(investigative,neutral,amicable,and agonistic)during a 10-min pairwise *** found that genetic relatedness had significant effects on the duration of investigative,neutral,and amicable behavior,but not on agonistic *** also found significant interaction effects of relatedness and distance between burrow systems(i.e.,spatial distance)on investigative,neutral,and amicable behavior,which suggests that the effects of kinship on social behavior were restricted by spatial *** interaction effect between sex and relatedness on amicable behavior showed that male gerbils became more intimate with individuals of the same sex that had higher pairwise relatedness than ***,both male and female gerbils enhanced their aggression during the food-hoarding season,but the intensity of these changes was significantly higher in ***,our results suggest that the effects of kinship and spatial proximity on social behavior exhibit sexual or seasonal patterns,thereby implying ecological context-dependent responses to out-group individuals in Mongolian gerbils.