检索结果-内蒙古大学图书馆

IEEE Symposium on Bioinformatics and Bioengineering (BIBE)

作者： George Tzanoukos Anastasios Gaitanis Alexandros Georgakopoulos Achilleas Chatziioannou Sofia Chatziioannou George Spyrou post-graduate Program: “Information Technologies in Medicine and Biology” (ITMB) National Center for Scientific Research (NCSR) “Demokritos” Athens CO Greece Department of Biomedical Technology Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece Nuclear Medicine Department Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece First Radiology Department University of Athens Athens Greece Biomedical Informatics Unit Biomedical Research Foundation of the Academy of Athens (BRFAA) Athens Greece

The assessment of solitary pulmonary nodules (SPN) is a very difficult task in PET imaging due to adjacent normal structures. Physicians and computational systems as well, would gain benefit if trained to a large number of SPN cases with controlled topological and morphological characteristics. Our objective was to develop a method for the modeling of the solitary pulmonary nodules in CT and PET images. The modeling of SPN was implemented by Monte Carlo methods taking into consideration morphological characteristics, internal features and Standardized Uptake Value (SUV) activity distribution. For the validation of the model, an observer study from three independent medical experts was performed. The reviewers characterized the lesions as simulated or real and finally they classified them as benign or malignant. According to the results of the human observer study a significant percentage of simulated images could not be differentiated from real ones and the simulated class (benign or malignant) was consistent with the observers' classification.

关键词： Positron emission tomography Lesions Computed tomography Cancer Observers Computational modeling Monte Carlo methods

来源：评论

学校读者我要写书评

暂无评论

Apical ballooning syndrome (Takotsubo Syndrome): Case report

引用

International Archives of Medicine 2013年第1期6卷 1-4页

作者： Do Nascimento, Charles Ulloffo Bosso, Carlos Eduardo Da Costa Nunes Jorge, Paulo Henrique Vanderlei, Franciele Marques Ebaid, Henrique Issa Artoni Valenti, Vitor Engrácia Vanderlei, Luiz Carlos Marques Presidente Prudente Regional Hospital 19050-680 R. José Bongiovani Presidente Prudente SP 1297 Brazil Santa Casa Municipal Hospital Heart Institution Presidente Prudente SP 19014-120 R. Donato Armelin 351 - Pres. Prudente Brazil Department of Cardiology Federal University of São Paulo UNIFESP São Paulo 1500. 04021-001 Rua Sena Madureira Brazil Post-graduate Program in Physical Therapy Faculty of Sciences and Technology UNESP 19060-900 Presidente Prudente SP R. Roberto Simonsen 305 Brazil

Introduction. The apical ballooning syndrome (ABS) is a single reversible cardiomyopathy often triggered by a stressful event. We aimed to present a case report regarding this disorder. Case presentation. Here we present the case of a 77-year-old female hypertensive patient, sedentary and non-smoker, diagnosed with apical ballooning syndrome. We describe the clinical signs and symptoms, changes in markers of myocardial necrosis and changes in the electrocardiogram and coronary angiography. Conclusion: The course of events patient showed clinical improvement with treatment and support was not necessary to administer specific medications or interventions to reverse the situation. After hemodynamic stabilization coronary angiography showed no obstructive lesions and left ventricle with akinesia of the apex and the middle portion of the left ventricle. © 2013 do Nascimento et al.;licensee BioMed Central Ltd.

关键词： Broken-heart syndrome Stress-induced cardiomyophaty Takotsubo cardiomyophaty

来源：评论

学校读者我要写书评

暂无评论

An image-based postal barcode decoder with missing bar correction

An image-based postal barcode decoder with missing bar corre...

引用

Asia-Pacific Signal and information Processing Association Annual Summit and Conference (APSIPA)

作者： Peng-Hua Wang Jia-Wei Ciou Department of Communication Engineering National Taipei University New Taipei City Taiwan R.O.C Graduate Industrial Collaboration R&D Master Program of Information and Communication Technology National Taipei University New Taipei City Taiwan R.O.C

In this paper, we propose an image-based postal barcode decoding algorithm. The proposed algorithm is capable of correcting missing bars in a symbol. postal barcodes in general belong to bar length modulated symbology. Usually, postal barcodes use a check digit to detect errors. It is possible for some postal code symbologies not only to detect errors, but also to correct them by using the uniqueness of the pattern of a digit. In this paper, we present a general method of correcting errors caused by missing bars. In order to validate our method, a postNET (postal Numeric Encoding Techniques) decoder is implemented. Experimental results show that the proposed algorithm can correct one missing bar in a digit, and at most ten missing bars in a postNET symbol.

关键词： Bars Decoding Bar codes Linear codes Algorithm design and analysis Signal processing algorithms

来源：评论

学校读者我要写书评

暂无评论

Routing Techniques in Sensor Network–A Survey

引用

Procedia Engineering 2012年 38卷 2739-2747页

作者： S. Saranya M. Princy Post Graduate Scholar Department of Information Technology Karunya UniversityIndia Lecturer Department of Information Technology Karunya University India

Wireless Sensor Networks (WSNs) consist of large number of sensor nodes with sensing, communication and computation capabilities. Sensor nodes have limited energy supply, bandwidth and computational capacity. Routing in sensor network differ based on the network architecture and the application in order to achieve high energy efficiency and better lifetime. In this paper, we have given the design issues of sensor network and also we classified the routing techniques into three main categories, flat, hierarchical and location based. We have described each routing techniques in appropriate category and presented a comparison of these routing techniques.

关键词： Classification of Routing Design Issues Data Aggregation Sensor Network

来源：评论

学校读者我要写书评

暂无评论

Gait recognition using GEI and pattern trace transform

Gait recognition using GEI and pattern trace transform

引用

2012 International Symposium on information Technologies in Medicine and Education, ITME 2012

作者： Theekhanont, Porntep Kurutach, Werasak Miguet, Serge Electrical Engineering Graduate Program Mahanakorn University of Technology Bangkok Thailand Information Technology Department Mahanakorn University of Technology Bangkok Thailand LIRIS Lab. Université Lumière Lyon 2 Lyon France

ISBN: (纸本)9781467321068

In this paper, gait recognition using Gait Energy Image (GEI) and pattern trace transform, is presented for human identification. The first step, gait recognition using GEI and pattern trace transform, used silhouette input. The gait period could be estimated by computing the median of the walking-step width of the three consecutive maxima. Subsequently, we calculated the Gait Energy Images from the silhouettes. GEI was transformed to a trace transform image. The pattern trace transform images were calculated using a threshold from the trace transform image to develop the pattern trace transform, which was a significant difference. Finally, we used template matching for identification. The results of gait recognition using GEI and pattern trace transform show that the proposed technique is quite effective and can be developed for higher performance. © 2012 IEEE.

关键词： Template matching

来源：评论

学校读者我要写书评

暂无评论

Automatic analysis of asynchronous discussions

Automatic analysis of asynchronous discussions

引用

4th International Conference on Computer Supported Education, CSEDU 2012

作者： Azevedo, Breno Fabrício Terra Behar, Patricia Alejandra Reategui, Eliseo Berni Department of Information Technology IFF 273 Dr. Siqueira 28030-130 Campos dos Goytacazes-RJ Brazil Graduate Program in Information Technology in Education UFRGS Building 12105 110 Paulo Gama 90040-060 Porto Alegre-RS Brazil

ISBN: (纸本)9789898565068

This paper presents results of an automatic analysis of text contributions made by students in asynchronous discussions. The study was carried with the Minera Fórum software. Data collected with the program were compared to appraisals made by teachers. Results show that the average of the analyses of posts made MineraFórum is similar to the average obtained in the analyses made by teachers.

关键词： Teaching

来源：评论

学校读者我要写书评

暂无评论

Amorphous silicon Bragg reflectors fabricated by oblique angle deposition

Amorphous silicon Bragg reflectors fabricated by oblique ang...

引用

2011 MRS Fall Meeting

作者： Jang, S.J. Yeo, C.I. Lee, Y.T. School of Information and Mechatronics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Graduate Program of Photonic and Applied Physics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Department of Nanobio Materials and Electronics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of

ISBN: (纸本)9781605113739

We demonstrate the highly reflective broadband a-Si distributed Bragg reflector fabricated by oblique angle deposition. By tuning the refractive index of a-Si film, the high index contrast material system was achieved. The broadband reflective characteristics of a-Si distributed Bragg reflector were investigated by calculation and fabrication. The broad stop band (Δλ/λ=33.7%, R>99%) with only a five-pair a-Si distributed Bragg reflector was achieved experimentally at center wavelength of 650, 980, and 1550 nm. The size-, feature- and substrate-independent method for highly reflective Bragg reflectors was realized by simple oblique angle evaporation. © 2012 Materials Research Society.

关键词： Reflection

来源：评论

学校读者我要写书评

暂无评论

Optimization of geometrical parameters of optical interconnect module based on double side perforated silicon optical platform for high coupling efficiency

Optimization of geometrical parameters of optical interconne...

引用

2012 17th Opto-Electronics and Communications Conference, OECC 2012

作者： Jeong, Bong Kyu Ravindran, Sooraj Kang, Eun Kyu Cha, Sung Hyun Lee, Yong Tak Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology 261 Cheomdan-gwagiro Buk-gu Gwangju 500-712 Korea Republic of Department of Information and Communication Gwangju Institute of Science and Technology 261 Cheomdan-gwagiro Buk-gu Gwangju 500-712 Korea Republic of

ISBN: (纸本)9781467309776

We demonstrated a new structure of optical interconnect module based on double side perforated silicon optical platform. This structure can eliminate the use of micro mirrors, lens, and guide pin, leading to a reduced packaging cost and volume. Simulation results show that the proposed structure can result in high coupling efficiency with relaxed permissible error for assembly. © 2012 IEEE.

关键词： Silicon

来源：评论

学校读者我要写书评

暂无评论

Low intensity laser therapy accelerates muscle regeneration in aged rats

引用

Photonics and Lasers in Medicine 2012年第4期1卷 287-297页

作者： Vatansever, Fatma Rodrigues, Natalia C. Assis, Livia L. Peviani, Sabrina S. Durigan, Joao L. Moreira, Fernando M.A. Hamblin, Michael R. Parizotto, Nivaldo A. Physiotherapy Department Federal University of São Carlos Via Washington Luiz km 235 13565-905 - Sao Carlos SP Brazil Wellman Center for Photomedicine Massachusetts General Hospital Boston MA United States Department of Dermatology Harvard Medical School Boston MA United States Biotechnology Post-Graduate Program Federal University of São Carlos SP Brazil Harvard-MIT Division of Health Science and Technology Cambridge MA United States

Background: Elderly people suffer from skeletal muscle disorders that undermine their daily activity and quality of life;some of these problems can be listed as but not limited to: sarcopenia, changes in central and peripheral nervous system, blood hypoperfusion, regenerative changes contributing to atrophy, and muscle weakness. Determination, proliferation and differentiation of satellite cells in the regenerative process are regulated by specific transcription factors, known as myogenic regulatory factors (MRFs). In the elderly, the activation of MRFs is inefficient which hampers the regenerative process. Recent studies found that low intensity laser therapy (LILT) has a stimulatory effect in the muscle regeneration process. However, the effects of this therapy when associated with aging are still unknown. Objective: This study aimed to evaluate the effects of LILT (λ = 830 nm) on the tibialis anterior (TA) muscle of aged rats. Subjects and methods: The total of 56 male Wistar rats formed two population sets: old and young, with 28 animals in each set. Each of these sets were randomly divided into four groups of young rats (3 months of age) with n = 7 per group and four groups of aged rats (10 months of age) with n = 7 per group. These groups were submitted to cryoinjury + laser irradiation, cryoinjury only, laser irradiation only and the control group (no cryoinjury/no laser irradiation). The laser treatment was performed for 5 consecutive days. The first laser application was done 24 h after the injury (on day 2) and on the seventh day, the TA muscle was dissected and removed under anesthesia. After this the animals were euthanized. Histological analyses with toluidine blue as well as hematoxylin- eosin staining (for counting the blood capillaries) were performed for the lesion areas. In addition, MyoD and VEGF mRNA was assessed by quantitative polymerase chain reaction. Results: The results showed significant elevation (p

关键词： Rats

来源：评论

学校读者我要写书评

暂无评论

Reversible JPEG Data Hiding Based on EMD

引用

通讯和计算机（中英文版） 2012年第10期9卷 1135-1141页

作者： Wen-Chung Kuo Shao-Hung Kuo Department of Computer Science and Information Engineering National Yunlin University of Science & Technology Yunlin 672 Taiwan Graduate School of Engineering Science and Technology Doctoral Program National Yunlin University of Science and Technology Yunlin 640 Taiwan

As the rapid growth of smart phone technology, people have a lot of digital image information such as digital photos or videos. Both data hiding and data compression are very important technologies in image processing field. On the overview, it seems that there is no relationship between data hiding and data compression because data hiding mechanisms focus on information security and data compression mechanisms emphasize the compression ratio. However, the more secret data is embedded, the more capacity the stego image increases. Actually, they are closely related. Until now, there are many literatures to discuss the secret data how to be embedded into the media image and keeps the original capacity as soon as possible. In this paper, a reversible data hiding scheme based on EMD data hiding and JPEG (Joint Picture Experts Group) compression technology will be proposed. According to experimental results, the authors can prove that our proposed scheme maintains high embedding capacity, security and good compression ratio.

关键词：数据隐藏 JPEG EMD 可逆数字图像信息数据嵌入压缩技术数据压缩

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：