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64 papers found.
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Antenna array design by a contraction adaptive particle swarm optimization algorithm

Massive multiple input multiple output (MIMO) has drawn intensive attention of researchers for solving huge data transmissions in the fifth generation wireless communication. Antennas aligning in array bring in advantages for interference reduction of incoming wave signals and interference offset among antenna elements. The design of antenna array is studied in this paper. The...

Stereotypical patterns of epileptiform calcium signal in hippocampal CA1, CA3, dentate gyrus and entorhinal cortex in freely moving mice

, tianjin, china. 2VcAnBi O biological Resources Storage (tianjin) co. Ltd, tianjin, china. Xin Zhang, Zhihong Qiao and nannan Liu contributed equally. correspondence and requests for materials should be

Breastfeeding and myopia: A cross-sectional study of children aged 6–12 years in Tianjin, China

Search for Yongjun Cao in:Nature Research journals • PubMed • Google Scholar Search for Xin Zhang in:Nature Research journals • PubMed • Google Scholar Contributions X.Z. conceived the study ... interests. Corresponding author Correspondence to Xin Zhang. Rights and permissions Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use

Tuning rectangular microstrip antenna through scan and zoom algorithm

analysis. Xin Zhang received his PhD in Electronic Engineering from City University of Hong Kong in 2013. Since 2015, he works as a lecturer at Tianjin Normal University. His main research interests are

Thinning of antenna array via adaptive memetic particle swarm optimization

Massive multiple input multiple output antenna array is crucial for the fifth generation wireless communication. Proper antenna array design can reduce interference among different signals and generate desirable beamforming. Sparse antenna array is able to form narrower beam with lower sidelobe than equally spaced antenna array given the same number of array elements. However...

Microstructure and phases of deposited metal of SUPER304H steel under high temperature Persistent stress

resistance. Author Contributions Yanchang Qi: Experimental scheme formulation and experimental analysis; Zhiquan Wu: Thermodynamic calculation and experimental process; Xin Zhang: Experimental process

A Study on Curing Kinetics of Nano-Phase Modified Epoxy Resin

reaction mechanism. The results showed that the curing reaction mechanism was autocatalytic reaction. 1 4 Author Contributions Hailing Ma, Xin Zhang, Feifei Ju, Sang-Bing Tsai; Providing case and idea ... : Hailing Ma; Providing revised advice: Hailing Ma, Xin Zhang, Feifei Ju, Sang-Bing Tsai. Additional Information Competing Interests: The authors declare no competing interests. Publisher's note: Springer

Effect of religion on hypertension in adult Buddhists and residents in China: A cross-sectional study

information AffiliationsDepartment of Cardiology, West China Hospital, Sichuan University, Chengdu, 610041, ChinaQingtao Meng, Ying Xu, Rufeng Shi, Xin Zhang, Si Wang, Kai Liu & Xiaoping Chen AuthorsSearch for ... • Google Scholar Search for Xin Zhang in:Nature Research journals • PubMed • Google Scholar Search for Si Wang in:Nature Research journals • PubMed • Google Scholar Search for Kai Liu in:Nature Research

Mean platelet volume predicts survival in pancreatic cancer patients with synchronous liver metastases

Most pancreatic cancer (PC) patients manifest multiple liver metastases at the time of diagnosis. Activated platelets play a key role in tumor growth and tumor metastases. Mean platelet volume (MPV) is a platelet index and is altered in patients with malignancies. This study aimed to evaluate whether MPV can effectively predict death in PC patients with synchronous liver...

A Prognostic 5-lncRNA Expression Signature for Head and Neck Squamous Cell Carcinoma

Changhan Chen Zhexuan Li Jiangyi Liu liangjuan Chen Gengming Cai Xin Zhang OPEN Head and neck squamous cell carcinoma (HNSCC) is a common malignant cancer that accounts for 5-10% of all cancers. This study

Terahertz Dispersion Characteristics of Super-aligned Multi-walled Carbon Nanotubes and Enhanced Transmission through Subwavelength Apertures

• PubMed • Google Scholar Search for Xiaoguang Zhao in:Nature Research journals • PubMed • Google Scholar Search for Xin Zhang in:Nature Research journals • PubMed • Google Scholar Contributions Y. Wang ... authors Correspondence to Yue Wang or Xin Zhang. Rights and permissions Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing

Nonuniform antenna array design by parallelizing three-parent crossover genetic algorithm

Antenna plays a very important role in wireless communication. Array elements laid out nonuniformly could achieve better frequency reliability and lower sidelobe level than uniform spaced elements. Designing desirable nonuniform antenna array requires the tuning of distances between each element, excitation, amplitude, and so on. Such design problem can be solved by genetic...

A non-revisiting artificial bee colony algorithm for phased array synthesis

An effective non-revisiting artificial bee colony (NrABC) algorithm based on the paradigm of artificial bee colony (ABC) is developed in this paper. NrABC is applied to tackle the synthesis of phased linear arrays. Pros and cons of NrABC is provided along with a comparison to standard ABC. Binary space partitioning tree structure is used to record history evolutionary information...

Population-adaptive differential evolution-based power allocation algorithm for cognitive radio networks

Zhang 0 1 0 Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal University , Tianjin , China 1 College of Electronic and Communication Engineering, Tianjin

Dissipation induced by phonon elastic scattering in crystals

for Zhongzhou Ren in:Nature Research journals • PubMed • Google ScholarSearch for Xin Zhang in:Nature Research journals • PubMed • Google Scholar Contributions G.L. conceived the protocol and performed

Triplex-quadruplex structural scaffold: a new binding structure of aptamer

Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, ChinaTao Bing, Wei Zheng, Xin Zhang, Luyao Shen, Xiangjun Liu, Fuyi Wang ... , Jie Cui, Zehui Cao & Dihua ShangguanUniversity of Chinese Academy of Sciences, Beijing, 100049, ChinaTao Bing, Xin Zhang, Luyao Shen, Xiangjun Liu, Fuyi Wang & Dihua Shangguan AuthorsSearch for Tao Bing

A novel artificial bee colony algorithm for radar polyphase code and antenna array designs

When designing radar, mobile, or satellite communication systems, optimization problems often come out and need to be handled to accomplish certain requirements. Polyphase code design and circular antenna array design problems are considered in this paper. To deal with the two problems, a novel artificial bee colony (ABC) algorithm is proposed. A population reduction method is...

Elevated mean platelet volume predicts poor prognosis in colorectal cancer

Altered mean platelet volume (MPV) is implicated in several malignancies. However, the clinicopathological significance and prognostic value of MPV in colorectal cancer (CRC) is still elusive. The purpose of this study was to elucidate the predictive significance of MPV in CRC. The retrospective study recruited 509 consecutive CRC patients between January 2009 and December 2009...

A study of artificial bee colony variants for radar waveform design

Waveform design and diversity is the technology that allows one or more sensors (e.g., radar or radar sensor networks) on board a platform to automatically change operating parameters, e.g., frequency, gain pattern, and pulse repetition frequency, to meet the varying environments. Optimization problems in the design of radar waveforms such as polyphase code design often bring...