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36 papers found.
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An adaptive relay node selection algorithm based on opportunity

The collaborative relay network plays an important role in a smart grid application thanks to its high efficiency. However, energy and bandwidth management need to be further improved to extend network life cycle and reduce potential network segmentation. Aiming to balance the network energy consumption, this paper proposes an adaptive relay node selection algorithm based on the ...

Robust group compressive sensing for DOA estimation with partially distorted observations

In this paper, we propose a robust direction-of-arrival (DOA) estimation algorithm based on group sparse reconstruction algorithm utilizing signals observed at multiple frequencies. The group sparse reconstruction scheme for DOA estimation is solved through the complex multitask Bayesian compressive sensing algorithm by exploiting the group sparse property of the received ...

Multiple statuses of through-wall human being detection based on compressed UWB radar data

Ultra-wideband (UWB) radar is one of the most favorable methods for through-wall human detection due to its strong penetration ability in many common non-metallic obstructions. The paper proposed the residual subspace projection method for multiple statuses of through-wall human being detection behind. And the compressed sensing method was presented to collect incomplete UWB radar ...

Lipedematous alopecia: clinical and histological analysis of the first male Chinese

Background Lipedematous alopecia (LA) is a rare disorder clinically characterized by a thick boggy scalp and varying severity of hair loss, which primarily occurs in black female adults. In this study, we reported one male adult Chinese diagnosed with lipedematous alopecia for the first time. Case presentation A Chinese male, aged 20 years old, admitted to Shandong Provincial ...

Model updating mechanism of concept drift detection in data stream based on classifier pool

In data stream, concept drift often occurs in an unpredictable way, the classifier model which was learned from previous data is not accurate to the current data, so regular updating of the model is necessary. Moreover, updating too frequently will cause a negative impact on the clustering accuracy and the analysis of subsequent data. This paper proposed a model-updating mechanism ...

Regulatory mechanisms of microRNAs in lung cancer stem cells

Increasing evidence suggests that cancer stem cells (CSCs) are a key occurrence in the process of many human cancers. Lung cancer is the most common aggressive malignancy and cause of cancer death worldwide. The research on lung cancer stem cells has been highlighted for many years. Lung CSCs seem to play a major role in lung cancer metastasis, drug resistance and ...

The study of statistical methods for evaluating the comparability of routine chemistry analytes among 3 routine laboratory measurement systems in China

Background Clinical laboratory tests are important for clinicians to make diagnostic decisions, but discrepancies may directly lead to incorrect diagnosis. We would like to introduce some statistical methods to evaluate the comparability of chemistry analytes while comparing the performances of different measurement systems. Methods We used a panel of 10 fresh-frozen single ...

Improving the thermostability and stress tolerance of an archaeon hyperthermophilic superoxide dismutase by fusion with a unique N-terminal domain

Wei Wang 0 1 2 0 Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, TEDA Institute of Biological Sciences and Biotechnology, Nankai University , 23 Hongda Street, TEDA

Design, synthesis, and biological evaluation of the novel glycyrrhetinic acid-cinnamoyl hybrids as anti-tumor agents

Background Glycyrrhetinic acid (GA) derivatives had shown not only cytotoxicity but also could trigger apoptosis in various human cancer cell lines. Moreover, cinnamic acid (CA) and its phenolic analogues as potent antitumor agents were employed in the design of anti-tumor drugs. To further improve the anti-tumor activity of GA and CA derivatives, a series of novel compounds were ...

Analysis of opportunistic spectrum access in cognitive radio networks using hidden Markov model with state prediction

Jyu-Wei Wang 0 Ramzi Adriman 1 0 Department of Photonics and Comm. Engineering, Asia University , No. 500, Lioufong Rd., Wufong District, Taichung City , Taiwan 1 Department of Computer Science

A novel energy-efficient resource allocation algorithm based on immune clonal optimization for green cloud computing

Cloud computing is a style of computing in which dynamically scalable and other virtualized resources are provided as a service over the Internet. The energy consumption and makespan associated with the resources allocated should be taken into account. This paper proposes an improved clonal selection algorithm based on time cost and energy consumption models in cloud computing ...

Joint spectrum sensing and access for stable dynamic spectrum aggregation

Spectrum aggregation is an emerging technology to satisfy the data rate requirement of broadband services for next-generation wireless communication systems. In dynamic spectrum environment, in which the spectrum availability is time-varying, it is quite challenging to maintain the stability of spectrum aggregation. In this paper, we investigate the spectrum sensing and access ...

Detection of the rs10250202 polymorphism in protection of telomeres 1 gene through introducing a new restriction enzyme site for PCR–RFLP assay

Human protection of telomeres 1 (POT1) gene is a single stranded telomere binding proteins with a critical role in ensuring chromosome stability. There have been variants of POT1 gene, and the polymorphisms of POT1 gene were associated with some diseases. Polymerase chain reaction–restriction fragment length polymorphism (PCR–RFLP) is a traditional method to detect the single ...

Through-wall detection of human being with compressed UWB radar data

Baoju Zhang 0 Wei Wang 0 0 College of Physical and Electronic Information, Tianjin Normal University , Tianjin 300387, China The technology for through-wall human detection with ultra-wideband (UWB

Hepatocellular adenoma: comparison between real-time contrast-enhanced ultrasound and dynamic computed tomography

Purpose To investigate and compare the contrast-enhanced ultrasound (CEUS) features of histologically proven HCA with those of contrast-enhanced computed tomography (CECT). Methods Eighteen patients with proven hepatic adenoma by pathology were retrospectively selected from the CEUS database. Fourteen of them had undergone liver CECT exams. The basic features on unenhanced imaging ...

Adaptive sampling with Bayesian compressive sensing in radar sensor networks and image

Wei Wang 0 Baoju Zhang 0 0 College of Physical and Electronic Information, Tianjin Normal University , Tianjin, China The theory of Bayesian compressive sensing is briefly introduced and the

Compressive sensing image fusion algorithm based on directionlets

Xin Zhou 0 Wei Wang 0 Rui-an Liu 0 0 College of Electronics and Communication Engineering, Tianjin Normal University , Tianjin 300387, China This paper presented a new image fusion based on

An adaptive routing optimization and energy-balancing algorithm in ZigBee hierarchical networks

ZigBee hierarchical tree routing protocol (HRP; ZigBee Alliance, San Ramon, CA, USA) provides a simple but reliable topology. However, the transmission routes are not always efficient, and the links are fixed after they were determined during the network initialization. In this paper, we propose an adaptive routing optimization and energy-balancing algorithm in ZigBee hierarchical ...

Optimization of relay placement and power allocation for decode-and-forward cooperative relaying over correlated shadowed fading channels

In this paper, we investigate the relay placement and power allocation for decode-and-forward (DF) cooperative relaying over correlated lognormal shadowed Rayleigh fading channels. Assuming that maximum-ratio combining is performed at the destination, we first derive an upper bound of symbol error rate (SER) with M-phase-shift keying (PSK) modulation. Then, three optimization ...