期刊文献+
共找到4篇文章
< 1 >
每页显示 20 50 100
The Analysis of Bases of Market Segmentation
1
作者 Wei Lu 《Chinese Business Review》 2005年第10期71-72,共2页
This paper analyses the characters of different bases of market segmentation and classes the bases into four kinds: observable general bases, observable product-specific bases, unobservable general bases and unobserv... This paper analyses the characters of different bases of market segmentation and classes the bases into four kinds: observable general bases, observable product-specific bases, unobservable general bases and unobservable product-specific bases. The result can be used in the future research of market segmentation. 展开更多
关键词 market segmentation the method of segmentation the bases of segmentation
下载PDF
AGWO-CNN Classification for Computer-Assisted Diagnosis of Brain Tumors 被引量:3
2
作者 T.Jeslin J.Arul Linsely 《Computers, Materials & Continua》 SCIE EI 2022年第4期171-182,共12页
Brain cancer is the premier reason for cancer deaths all over the world.The diagnosis of brain cancer at an initial stage is mediocre,as the radiologist is ineffectual.Different experiments have been conducted and dem... Brain cancer is the premier reason for cancer deaths all over the world.The diagnosis of brain cancer at an initial stage is mediocre,as the radiologist is ineffectual.Different experiments have been conducted and demonstrated clearly that the algorithms for nodule segmentation are unsuccessful.Therefore,the research has consolidated incremental clustering focused on superpixel segmentation as an appropriate optimization approach for the accurate segmentation of pulmonary nodules.The key aim of the research is to refine brain CT images to accurately distinguish tumors and the segmentation of small-scale anomalous nodules in the brain region.In the beginning stage,an anisotropic diffusion filters(ADF)method with un-sharp intensification masking is utilized to eliminate the noise discernment in images.In the following stage,within the improved nodule image sequence,a Superpixel Segmentation Based Iterative Clustering(SSBIC)algorithm is proposed for irregular brain tissue prediction.Subsequently,the brain nodule samples are captured using deep learning methods:Advanced Grey Wolf Optimization(AGWO)with ONN(AGWO-ONN)and Advanced GWO with CNN-based(AGWOCNN).The proposed technique indicates that the sensitivity is increased and the calculation time is decreased.Consequently,the proposed methodology manifests that the advanced Computer-Assisted Diagnosis(CAD)system has outstanding potential for automatic brain tumor diagnosis.The average segmentation time of the nodule slice order is 1.06s,and 97%of AGWO-ONN and 97.6%of AGWO-CNN achieve the best classification reliability. 展开更多
关键词 Advanced GWO with ONN(AGWO-ONN) Advanced GWO with CNN(AGWO-CNN) brain cancer superpixel segmentation based iterative clustering(SSBIC)algorithm
下载PDF
Developing nutrient criteria for the Jiulong River Estuary,Southeast China 被引量:7
3
作者 LIU Baoli CAO Wenzhi +3 位作者 HUANG Zheng CHEN Wenhui CHEN Huihuang LIU Lusan 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2018年第2期1-13,共13页
One of the key concerns in estuarine and coastal environments is eutrophication, which is known to be closely connected to nutrient enrichment. To control and improve surface water quality, nutrient criteria are recom... One of the key concerns in estuarine and coastal environments is eutrophication, which is known to be closely connected to nutrient enrichment. To control and improve surface water quality, nutrient criteria are recommended in order to provide reference conditions for the environment. However, the current datasets of nutrient criteria in China are either designed for surface water or sea water, and as such these are not suitable for assessing estuarine water quality, especially given the unique ecosystem and dynamic properties of estuaries. To address this issue in current estuarine water management, nutrient criteria have been developed for a local estuary in the southeast of China. Segmentation of the Jiulong River Estuary, China was firstly analysed through field investigations carried out during 2013–2014, which resulted in the delineation of three segments characterized by their distinct properties in relation to salinity, hydrology, ecosystems, etc. Historical records from 1997 to 2014 were then analysed using statistical modelling to develop candidate nutrient criteria for the estuary.This stage of the analysis was undertaken in combination with the study of nutrient status records from the 1980s,which were used to establish a baseline reference condition. The recommended criteria values of dissolved inorganic nitrogen(DIN) in Segments Ⅰ, Ⅱ and Ⅲ of the Jiulong River Estuary are 64, 21 and 14 μmol/L,respectively, and the corresponding values for soluble reactive phosphorus(SRP) are 0.89, 0.76 and 0.89 μmol/L,respectively. It should be emphasised that these values are site-dependent, and that different results may be achieved at other locations depending on the physical and biogeochemical characteristics of an estuary, or even a single site within a catchment. It is hoped that by demonstrating a possible methodological approach and methods of nutrient criteria derivation in the Jiulong River Estuary, the current study will offer researchers some fundamental basis from which to begin to develop more complete nutrient criteria indices for the study of nutrient conditions in other estuaries throughout China. 展开更多
关键词 estuarine segmentation nutrient criteria ecosystems based approach
下载PDF
Based on the Four Segments and Treatment by Syndrome Differentiation to Lower the Mortality of Sepsis 被引量:2
4
作者 刘清泉 《Chinese Journal of Integrative Medicine》 SCIE CAS 2009年第1期16-18,共3页
Lowering the mortality of sepsis has become an important issue in the international critical care medicine because of its unacceptably high incidence. In 2004 and 2008,there were no essential breakthroughs in internat... Lowering the mortality of sepsis has become an important issue in the international critical care medicine because of its unacceptably high incidence. In 2004 and 2008,there were no essential breakthroughs in international guidelines for the management of severe sepsis 展开更多
关键词 Based on the Four Segments and Treatment by Syndrome Differentiation to Lower the Mortality of Sepsis
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部