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Metamaterials have great potential to construct ultrathin, miniaturized, and cost-effective microwave and optical devices for future wireless communication systems. Here, a dual-band meta-absorber comprising four arrows-shaped unit cells is…

Applied Physics · Physics 2023-03-01 Amjad Nadeem

The utilization of millimeter wave frequency bands is expected to become prevalent in the following communication systems. However, generating and transmitting communication signals over these frequencies is not as straightforward as in…

Signal Processing · Electrical Eng. & Systems 2024-05-06 M. Yaser Yağan , Ibrahim Hökelek , Ali E. Pusane , Ali Görçin

Breast cancer is a common cancer for women. Early detection of breast cancer can considerably increase the survival rate of women. This paper mainly focuses on transfer learning process to detect breast cancer. Modified VGG (MVGG), residual…

Image and Video Processing · Electrical Eng. & Systems 2021-01-13 Aditya Khamparia , Subrato Bharati , Prajoy Podder , Deepak Gupta , Ashish Khanna , Thai Kim Phung , Dang N. H. Thanh

Analysis of X-ray images is one of the main tools to diagnose breast cancer. The ability to quickly and accurately detect the location of masses from the huge amount of image data is the key to reducing the morbidity and mortality of breast…

Computer Vision and Pattern Recognition · Computer Science 2023-02-23 Hexiang Zhang , Zhenghua Xu , Dan Yao , Shuo Zhang , Junyang Chen , Thomas Lukasiewicz

Cancer is one of the most common and fatal diseases in the world. Breast cancer affects one in every eight women and one in every eight hundred men. Hence, our prime target should be early detection of cancer because the early detection of…

Image and Video Processing · Electrical Eng. & Systems 2022-02-15 Jitendra Maan , Harsh Maan

Millimeter wave technology being an emerging area is still very undeveloped. A substantial research needs to be done in this area as its applications are numerous. In the present endeavor, a rectangular patch antenna is designed on thick…

Other Computer Science · Computer Science 2010-06-07 Harsh kumar , Shweta Srivastava

In this paper, a definition of the gain and added noise of impedance matching networks for scanning microwave microscopy is given. This definition can be used to compare different impedance matching techniques independently of the…

To support millimeter wave (mmWave) frequency bands in cellular communications, both the base station and the mobile platform utilize large antenna arrays to steer narrow beams towards each other to compensate the path loss and improve…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Junmo Sung , Brian L. Evans

Thinning antenna arrays through quantum Fourier transform (QFT) is proposed. Given the lattice of the candidate locations for the array elements, the problem of selecting which antenna location has to be either occupied or not by an array…

Quantum Physics · Physics 2021-07-13 Paolo Rocca , Nicola Anselmi , Giacomo Oliveri , Alessandro Polo , Andrea Massa

Ultrasound image diagnosis of breast tumors has been widely used in recent years. However, there are some problems of it, for instance, poor quality, intense noise and uneven echo distribution, which has created a huge obstacle to…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Zhihao Fang , Wanyi Zhang , He Ma

The use of the millimeter (mm) wave spectrum for next generation (5G) mobile communication has gained significant attention recently. The small carrier wavelengths at mmwave frequencies enable synthesis of compact antenna arrays, providing…

Information Theory · Computer Science 2014-10-22 Jaspreet Singh , Sudhir Ramakrishna

Breast cancer is one of the most common cancers in women worldwide, and early detection can significantly reduce the mortality rate of breast cancer. It is crucial to take multi-scale information of tissue structure into account in the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-01 Mo Zhang , Quanzheng Li

Biomedical implantable technologies are life-saving modalities for millions of people globally because of their abilities of wireless remote monitoring, regulating the abnormal functions of internal organs, and early detection of cognitive…

Detecting primordial fluctuations from the cosmic dark ages requires extremely large low-frequency radio telescope arrays deployed on the far side of the Moon. The antenna of such an array must be lightweight, easily storable and…

Instrumentation and Methods for Astrophysics · Physics 2024-08-20 Suonanben , Fengquan Wu , Kai He , Shijie Sun , Wei Zhou , Minquan Zhou , Cong Zhang , Jiaqin Xu , Qisen Yan , Shenzhe Xu , Jiacong Zhu , Zhao Wang , Ke Zhang , Haitao Miao , Jixia Li , Yougang Wang , Tianlu Chen , Xuelei Chen

Breast X-ray CT imaging is being considered in screening as an extension to mammography. As a large fraction of the population will be exposed to radiation, low-dose imaging is essential. Iterative image reconstruction based on solving an…

Medical Physics · Physics 2011-11-14 Jakob H. Jørgensen , Emil Y. Sidky , Xiaochuan Pan

This paper presents an experimental study to evaluate the effects of antenna radiation parameters on the detection capabilities of a 2.4 GHz Doppler radar used in non-contact heart rate monitoring systems. Four different types of patch…

Signal Processing · Electrical Eng. & Systems 2018-01-03 Mehrdad Nosrati , Negar Tavassolian

We propose and investigate a compressive architecture for estimation and tracking of sparse spatial channels in millimeter (mm) wave picocellular networks. The base stations are equipped with antenna arrays with a large number of elements…

Information Theory · Computer Science 2016-05-04 Zhinus Marzi , Dinesh Ramasamy , Upamanyu Madhow

Structural and mechanical differences between cancerous and healthy tissue give rise to variations in macroscopic properties such as visual appearance and elastic modulus that show promise as signatures for early cancer detection. Atomic…

The confocal microwave imaging (CMI) algorithm, which is used in radar imaging, has been applied to microwave medical imaging (MMI) [1, 2]. In MMI, the diseased region to be imaged has different electromagnetic characteristics from that of…

Medical Physics · Physics 2024-10-01 Wenyi Shao , Beibei Zhou , Gang Wang

Spectral imaging is a method in medical x-ray imaging to extract information about the object constituents by the material-specific energy dependence of x-ray attenuation. Contrast-enhanced spectral imaging has been thoroughly investigated,…

Medical Physics · Physics 2021-01-26 Erik Fredenberg , Magnus Aslund , Bjorn Cederstrom , Mats Lundqvist , Mats Danielsson