در هنگام جستجو کلمه در قسمت عنوان میتوانید کلمات مورد جستجو را با کاراکتر (-) جدا کنید.
کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Artificial Intelligence in Electrical Engineering
- نوع مقاله: Journal Article
- کلمات کلیدی: Wavelet transform,Contourlet Transform,EZW, EBCOT,Fractal Coding
- چکیده:
- چکیده انگلیسی: Within recent years the use of medical images for diagnosis purposes has become necessity. The limitation in transmission and storage space also growing size of medical images has necessitated the need for efficient method, then image Compression is required as an efficient way to reduces irrelevant and redundancy of the image data in order to be able to store or transmits data. It also reduces the time required for images to be sent over the internet or downloaded from web pages. Medical Image Compression plays a vital role in the field of Telemedicine. Image compression will allow Picture Archiving and Communication Systems (PACS) to reduce the file sizes on their storage requirements while maintaining relevant diagnostic information. Diagnosis is effective only when compression techniques preserve the relevant and important image information needed. In this paper, a review has been based on different image compression methods are presented.
- انتشار مقاله: 17-03-1396
- نویسندگان: Nasser Lotfivand,Neda Rezaei
- مشاهده
- جایگاه : پژوهشی
- مجله: International Journal of Community Based Nursing and Midwifery
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,Women,Health,Qualitative study,Context
- چکیده:
- چکیده انگلیسی: Background: Contextual factors impact health the same way social and cultural conditions do. Women’s health, with its varying dimensions, is also under the influence of biological, societal, and cultural contexts. This typical condition has been developed along the continuum of their life cycle, bearing close correlation with their lif style. Therefore, identifying those marices within which women’s health behaviors are formed is important.This study aims at exploring the contextual factors affecting women’s health in Sistan and Baluchestan in Iran.Methods: This study was carried out using a qualitative method, on a content analysis approach. Participants were 20 middle-aged women from Zahedan who entered the study with purposive sampling method. The method of collecting data was face-to- face and through conducting semi-structured interviews. After data collection, all interviews were transcribed, andreviewed, from which categories were extracted. The semantic similarities were revised and subcategories were identified, and then the related subcategories were arranged under one category.Results: Two main categories of “features of context-based structure” and “changes in the cultural context” prove to be the basis for health behaviors in women. As for the category of “characteristics of context-based structure”, individual, familial and environmental characteristics were identified, and regarding the category of “changes in the cultural context”, the context-based cultural features were identified.Conclusion: The findings of the study suggest that effective contextual factors influencing women’s living conditions had a decisive role in their health behaviors. In fact, the context- based structure in association with the cultural changes that have occurred in the beliefs of men and women, have had a decisive role in the women’s health behaviors.
- انتشار مقاله: 06-06-1395
- نویسندگان: Nasrin Rezaee,Alireza Salar,Fereshteh Ghaljaei,Naimeh Seyedfatem,Neda Rezaei
- مشاهده
- جایگاه : پژوهشی
- مجله: Advances in Environmental Technology
- نوع مقاله: Journal Article
- کلمات کلیدی: Deposited Dust,Trace Eelements,Pb/Zn Mine,Hierarchical Cluster Analysis,Contamination Indices
- چکیده:
- چکیده انگلیسی: Mining activities are among the main sources of trace elements in the environment, which constitute a real concern worldwide, especially in developing countries. This study aimed to investigate the multivariate approaches such as Correlation Matrix and Hierarchical Cluster Analysis (HCA) for the identification of probable sources of trace elements in the deposited dust near the Mehdi Abad Pb/Zn mine located in Mehriz, Yazd province, as well as the evaluation of dust contamination based on the Geo-accumulation Index (I geo), Nemerow Pollution Index (PI Nemerow), Improved Nemerow Index (IN), and Combined Pollution Index (CPI). In addition, an anthropogenic index was used to determine the sources of the elements. For this purpose, deposited dust was collected in nine sites using a marble dust collector (MDCO). Next, the chemical analysis of dust was determined using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Statistics analysis was carried out using SPSS 22.0. The results showed that concentrations of zinc, thallium, silver, aluminium, arsenic, bismuth, calcium, cadmium, cerium, caesium, erbium, europium, gadolinium, hafnium, potassium, lutetium, manganese, sodium, phosphorus, antimony, scandium, and samarium in the deposited dust was higher than the background value. HCA identified two origins for the elements. The anthropogenic index confirmed the geogenic origin of elements in the deposited dust. Furthermore, CPI and PI Nemerow indices values showed that all sampling sites were in the heavily contaminated class. The results of IN Index showed that 56% of sampling sites were in the heavily contaminated class. The analysis of I geo, PI Nemerow, and IN indices showed that arsenic caused extreme contamination of the deposited dust at sampling sites.
- انتشار مقاله: 30-06-1399
- نویسندگان: Saeed Shojaee Barjoee,Neda Rezaei,Saeed Zarei Mahmoud Abadi,Elham Malverdi,Mojtaba Nikbakht,Mohamad Reza Naghdi
- مشاهده