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1,659 results on '"Shen, Xia"'

1. Relay Satellite Assisted LEO Constellation NOMA Communication System

Author

Zhang, Xuyang, Yue, Xinwei, Han, Zhihao, Li, Tian, Shen, Xia, Wang, Yafei, and Liu, Rongke

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

This paper proposes a relay satellite assisted low earth orbit (LEO) constellation non-orthogonal multiple access combined beamforming (R-NOMA-BF) communication system, where multiple antenna LEO satellites deliver information to ground non-orthogonal users. To measure the service quality, we formulate a resource allocation problem to minimize the second-order difference between the achievable capacity and user request traffic. Based on the above problem, joint optimization for LEO satellite-cell assignment factor, NOMA power and BF vector is taken into account. The optimization variables are analyzed with respect to feasibility and non-convexity. Additionally, we provide a pair of effective algorithms, i.e., doppler shift LEO satellite-cell assisted monotonic programming of NOMA with BF vector (D-mNOMA-BF) and ant colony pathfinding based NOMA exponential cone programming with BF vector (A-eNOMA-BF). Two compromise algorithms regarding the above are also presented. Numerical results show that: 1) D-mNOMA-BF and A-eNOMA-BF algorithms are superior to that of orthogonal multiple access based BF (OMA-BF) and polarization multiplexing schemes; 2) With the increasing number of antennas and single satellite power, R-NOMA-BF system is able to expand users satisfaction; and 3) By comparing various imperfect successive interference cancellation, the performance of A-mNOMA-BF algorithm exceeds D-mNOMA-BF.

Published
2024

2. The genetic landscape of neuro-related proteins in human plasma

Author

Repetto, Linda, Chen, Jiantao, Yang, Zhijian, Zhai, Ranran, Timmers, Paul R. H. J., Feng, Xiao, Li, Ting, Yao, Yue, Maslov, Denis, Timoshchuk, Anna, Tu, Fengyu, Twait, Emma L., May-Wilson, Sebastian, Muckian, Marisa D., Prins, Bram P., Png, Grace, Kooperberg, Charles, Johansson, Åsa, Hillary, Robert F., Wheeler, Eleanor, Pan, Lu, He, Yazhou, Klasson, Sofia, Ahmad, Shahzad, Peters, James E., Gilly, Arthur, Karaleftheri, Maria, Tsafantakis, Emmanouil, Haessler, Jeffrey, Gyllensten, Ulf, Harris, Sarah E., Wareham, Nicholas J., Göteson, Andreas, Lagging, Cecilia, Ikram, Mohammad Arfan, van Duijn, Cornelia M., Jern, Christina, Landén, Mikael, Langenberg, Claudia, Deary, Ian J., Marioni, Riccardo E., Enroth, Stefan, Reiner, Alexander P., Dedoussis, George, Zeggini, Eleftheria, Sharapov, Sodbo, Aulchenko, Yurii S., Butterworth, Adam S., Mälarstig, Anders, Wilson, James F., Navarro, Pau, and Shen, Xia

Published
2024
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3. Active Simultaneously Transmitting and Reflecting Surface Assisted NOMA Networks

Author

Yue, Xinwei, Xie, Jin, Ouyang, Chongjun, Liu, Yuanwei, Shen, Xia, and Ding, Zhiguo

Subjects
Electrical Engineering and Systems Science - Signal Processing
Abstract

The novel active simultaneously transmitting and reflecting surface (ASTARS) has recently received a lot of attention due to its capability to conquer the multiplicative fading loss and achieve full-space smart radio environments. This paper introduces the ASTARS to assist non-orthogonal multiple access (NOMA) communications, where the stochastic geometry theory is used to model the spatial positions of pairing users. We design the independent reflection/transmission phase-shift controllers of ASTARS to align the phases of cascaded channels at pairing users. We derive new closed-form and asymptotic expressions of the outage probability and ergodic data rate for ASTARS-NOMA networks in the presence of perfect/imperfect successive interference cancellation (pSIC). The diversity orders and multiplexing gains for ASTARS-NOMA are derived to provide more insights. Furthermore, the system throughputs of ASTARS-NOMA are investigated in both delay-tolerant and delay-limited transmission modes. The numerical results are presented and show that: 1) ASTARS-NOMA with pSIC outperforms ASTARS assisted-orthogonal multiple access (ASTARS-OMA) in terms of outage probability and ergodic data rate; 2) The outage probability of ASTARS-NOMA can be further reduced within a certain range by increasing the power amplification factors; 3) The system throughputs of ASTARS-NOMA are superior to that of ASTARS-OMA in both delay-limited and delay-tolerant transmission modes.

Published
2024

5. A compendium of genetic regulatory effects across pig tissues.

Author

Teng, Jinyan, Gao, Yahui, Yin, Hongwei, Bai, Zhonghao, Liu, Shuli, Zeng, Haonan, Bai, Lijing, Cai, Zexi, Zhao, Bingru, Li, Xiujin, Xu, Zhiting, Lin, Qing, Pan, Zhangyuan, Yang, Wenjing, Yu, Xiaoshan, Guan, Dailu, Hou, Yali, Keel, Brittney, Rohrer, Gary, Lindholm-Perry, Amanda, Oliver, William, Ballester, Maria, Crespo-Piazuelo, Daniel, Quintanilla, Raquel, Canela-Xandri, Oriol, Rawlik, Konrad, Xia, Charley, Yao, Yuelin, Zhao, Qianyi, Yao, Wenye, Yang, Liu, Li, Houcheng, Zhang, Huicong, Liao, Wang, Chen, Tianshuo, Karlskov-Mortensen, Peter, Fredholm, Merete, Amills, Marcel, Clop, Alex, Giuffra, Elisabetta, Wu, Jun, Cai, Xiaodian, Diao, Shuqi, Pan, Xiangchun, Wei, Chen, Li, Jinghui, Cheng, Hao, Wang, Sheng, Su, Guosheng, Sahana, Goutam, Lund, Mogens, Dekkers, Jack, Kramer, Luke, Tuggle, Christopher, Corbett, Ryan, Groenen, Martien, Madsen, Ole, Gòdia, Marta, Rocha, Dominique, Charles, Mathieu, Li, Cong-Jun, Pausch, Hubert, Hu, Xiaoxiang, Frantz, Laurent, Luo, Yonglun, Lin, Lin, Zhou, Zhongyin, Zhang, Zhe, Chen, Zitao, Cui, Leilei, Xiang, Ruidong, Shen, Xia, Li, Pinghua, Huang, Ruihua, Tang, Guoqing, Li, Mingzhou, Zhao, Yunxiang, Yi, Guoqiang, Tang, Zhonglin, Jiang, Jicai, Zhao, Fuping, Yuan, Xiaolong, Liu, Xiaohong, Chen, Yaosheng, Xu, Xuewen, Zhao, Shuhong, Zhao, Pengju, Haley, Chris, Zhou, Huaijun, Wang, Qishan, Pan, Yuchun, Ding, Xiangdong, Ma, Li, Li, Jiaqi, Navarro, Pau, Zhang, Qin, Li, Bingjie, Tenesa, Albert, Li, Kui, and Liu, George

Subjects
Swine, Animals, Humans, Gene Expression Regulation, Genotype, Phenotype, Sequence Analysis, RNA, Gene Expression Profiling
Abstract

The Farm Animal Genotype-Tissue Expression (FarmGTEx) project has been established to develop a public resource of genetic regulatory variants in livestock, which is essential for linking genetic polymorphisms to variation in phenotypes, helping fundamental biological discovery and exploitation in animal breeding and human biomedicine. Here we show results from the pilot phase of PigGTEx by processing 5,457 RNA-sequencing and 1,602 whole-genome sequencing samples passing quality control from pigs. We build a pig genotype imputation panel and associate millions of genetic variants with five types of transcriptomic phenotypes in 34 tissues. We evaluate tissue specificity of regulatory effects and elucidate molecular mechanisms of their action using multi-omics data. Leveraging this resource, we decipher regulatory mechanisms underlying 207 pig complex phenotypes and demonstrate the similarity of pigs to humans in gene expression and the genetic regulation behind complex phenotypes, supporting the importance of pigs as a human biomedical model.

Published
2024

7. Identifying therapeutic targets for cancer among 2074 circulating proteins and risk of nine cancers

Author

Smith-Byrne, Karl, Hedman, Åsa, Dimitriou, Marios, Desai, Trishna, Sokolov, Alexandr V., Schioth, Helgi B., Koprulu, Mine, Pietzner, Maik, Langenberg, Claudia, Atkins, Joshua, Penha, Ricardo Cortez, McKay, James, Brennan, Paul, Zhou, Sirui, Richards, Brent J., Yarmolinsky, James, Martin, Richard M., Borlido, Joana, Mu, Xinmeng J., Butterworth, Adam, Shen, Xia, Wilson, Jim, Assimes, Themistocles L., Hung, Rayjean J., Amos, Christopher, Purdue, Mark, Rothman, Nathaniel, Chanock, Stephen, Travis, Ruth C., Johansson, Mattias, and Mälarstig, Anders

Published
2024
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9. Review on Methodologies of Assessing Carbon Sequestration Amount of Coastal Wetlands

Author

Wang, Haipeng, Zhang, Ming, Shen, Xia, Wu, Xiaohua, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, Tajima, Yoshimitsu, editor, Aoki, Shin-ichi, editor, and Sato, Shinji, editor

Published
2024
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10. Genetic architecture of spatial electrical biomarkers for cardiac arrhythmia and relationship with cardiovascular disease.

Author

Young, William J, Haessler, Jeffrey, Benjamins, Jan-Walter, Repetto, Linda, Yao, Jie, Isaacs, Aaron, Harper, Andrew R, Ramirez, Julia, Garnier, Sophie, van Duijvenboden, Stefan, Baldassari, Antoine R, Concas, Maria Pina, Duong, ThuyVy, Foco, Luisa, Isaksen, Jonas L, Mei, Hao, Noordam, Raymond, Nursyifa, Casia, Richmond, Anne, Santolalla, Meddly L, Sitlani, Colleen M, Soroush, Negin, Thériault, Sébastien, Trompet, Stella, Aeschbacher, Stefanie, Ahmadizar, Fariba, Alonso, Alvaro, Brody, Jennifer A, Campbell, Archie, Correa, Adolfo, Darbar, Dawood, De Luca, Antonio, Deleuze, Jean-François, Ellervik, Christina, Fuchsberger, Christian, Goel, Anuj, Grace, Christopher, Guo, Xiuqing, Hansen, Torben, Heckbert, Susan R, Jackson, Rebecca D, Kors, Jan A, Lima-Costa, Maria Fernanda, Linneberg, Allan, Macfarlane, Peter W, Morrison, Alanna C, Navarro, Pau, Porteous, David J, Pramstaller, Peter P, Reiner, Alexander P, Risch, Lorenz, Schotten, Ulrich, Shen, Xia, Sinagra, Gianfranco, Soliman, Elsayed Z, Stoll, Monika, Tarazona-Santos, Eduardo, Tinker, Andrew, Trajanoska, Katerina, Villard, Eric, Warren, Helen R, Whitsel, Eric A, Wiggins, Kerri L, Arking, Dan E, Avery, Christy L, Conen, David, Girotto, Giorgia, Grarup, Niels, Hayward, Caroline, Jukema, J Wouter, Mook-Kanamori, Dennis O, Olesen, Morten Salling, Padmanabhan, Sandosh, Psaty, Bruce M, Pattaro, Cristian, Ribeiro, Antonio Luiz P, Rotter, Jerome I, Stricker, Bruno H, van der Harst, Pim, van Duijn, Cornelia M, Verweij, Niek, Wilson, James G, Orini, Michele, Charron, Philippe, Watkins, Hugh, Kooperberg, Charles, Lin, Henry J, Wilson, James F, Kanters, Jørgen K, Sotoodehnia, Nona, Mifsud, Borbala, Lambiase, Pier D, Tereshchenko, Larisa G, and Munroe, Patricia B

Subjects
Humans, Cardiovascular Diseases, Electrocardiography, Risk Factors, Arrhythmias, Cardiac, Atrioventricular Block, Genome-Wide Association Study, Biomarkers, Human Genome, Cardiovascular, Genetics, Heart Disease
Abstract

The 3-dimensional spatial and 2-dimensional frontal QRS-T angles are measures derived from the vectorcardiogram. They are independent risk predictors for arrhythmia, but the underlying biology is unknown. Using multi-ancestry genome-wide association studies we identify 61 (58 previously unreported) loci for the spatial QRS-T angle (N = 118,780) and 11 for the frontal QRS-T angle (N = 159,715). Seven out of the 61 spatial QRS-T angle loci have not been reported for other electrocardiographic measures. Enrichments are observed in pathways related to cardiac and vascular development, muscle contraction, and hypertrophy. Pairwise genome-wide association studies with classical ECG traits identify shared genetic influences with PR interval and QRS duration. Phenome-wide scanning indicate associations with atrial fibrillation, atrioventricular block and arterial embolism and genetically determined QRS-T angle measures are associated with fascicular and bundle branch block (and also atrioventricular block for the frontal QRS-T angle). We identify potential biology involved in the QRS-T angle and their genetic relationships with cardiovascular traits and diseases, may inform future research and risk prediction.

Published
2023

31. Research on Digital Management of Scientific and Technological Innovation Services in Universities Based on Artificial Intelligence Background

Author

Shen Xia and Xie Changwei

Subjects
artificial intelligence, principal component analysis, cluster analysis, digital management, science and technology innovation service, 97m50, Mathematics, QA1-939
Abstract

In this paper, the digital management of scientific and technological innovation services in universities based on the background of artificial intelligence is studied in depth, aiming to create a comprehensive and efficient management platform. By constructing a platform with a multi-level architecture, it realizes the informatization management of the whole process of university science and technology projects. Specifically, this study designed a functional structure of 10 subsystems, covering all stages from project declaration to results management. To improve the management efficiency, principal component analysis and cluster analysis techniques were introduced, and the effectiveness and feasibility of the platform were verified by analyzing 270 questionnaires. The average score is 3.8293, showing that users highly recognize the platform. In addition, by qualitatively and quantitatively analyzing the factors affecting management, the key factors promoting and inhibiting the management efficiency were clarified, providing a new perspective for the management of scientific and technological innovation services in universities.

Published
2024
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32. Breaking Rayleigh's Criterion via Discernibility in High-Dimensional Light-Field Space with Snapshot Ghost Imaging

Author

Tong, Zhishen, Liu, Zhentao, Wang, Jian, Shen, Xia, and Han, Shensheng

Subjects
Physics - Optics, Electrical Engineering and Systems Science - Image and Video Processing
Abstract

By encoding the high-dimensional light-field imaging information into a detectable two-dimensional speckle plane, ghost imaging camera via sparsity constraints (GISC camera) can directly catch the high-dimensional light-field imaging information with only one snapshot. This makes it worth to revisit the spatial resolution limit of this optical imaging system. In this paper we show both theoretically and experimentally that, while the resolution in high-dimensional light-field space is still limited by diffraction, the statistical spatial resolution of GISC camera can be greatly improved comparing to classical Rayleigh's criterion by utilizing the discernibility in high-dimensional light-field space. The interaction between imaging resolution, degrees of freedom of light field, and degrees of freedom of objects in high-dimensional light-field space is also demonstrated., Comment: 7pages, 6 figures

Published
2020

34. Dissecting aneuploidy phenotypes by constructing Sc2.0 chromosome VII and SCRaMbLEing synthetic disomic yeast

Author

Shen, Yue, Gao, Feng, Wang, Yun, Wang, Yuerong, Zheng, Ju, Gong, Jianhui, Zhang, Jintao, Luo, Zhouqing, Schindler, Daniel, Deng, Yang, Ding, Weichao, Lin, Tao, Swidah, Reem, Zhao, Hongcui, Jiang, Shuangying, Zeng, Cheng, Chen, Shihong, Chen, Tai, Wang, Yong, Luo, Yisha, Mitchell, Leslie, Bader, Joel S., Zhang, Guojie, Shen, Xia, Wang, Jian, Fu, Xian, Dai, Junbiao, Boeke, Jef D., Yang, Huanming, Xu, Xun, and Cai, Yizhi

Published
2023
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38. Therapeutic effect of Ixekizumab combined with hemoperfusion in a patient with severe psoriasis (依奇珠单抗联合血液灌流治疗重度银屑病1例疗效观察)

Author

LI Jing (李静), SHEN Xia (沈霞), and LI Hongxian (李红仙)

Subjects
psoriasis, hemoperfusion, ixekizumab, hemodialysis, 银屑病, 血液灌流, 依奇珠单抗, 血液透析, Nursing, RT1-120
Abstract

In this paper, clinical data of a case of hemodialysis patients with erythrodermic psoriasis who were treated with Ixekizumab injection combined with hemoperfusion were retrospectively analyzed. The first administration was subcutaneous injection of Ixekizumab 80 mg, followed by injection every three weeks (6 doses in total), and maintenance therapy with 80 mg once a month. The hemodialysis treatment was performed three times a week, and hemoperfusion treatment was carried out every two weeks. After more than 1 year of observation, the patient's current systemic skin lesions were significantly improved, without scaling or skin itching and other manifestations. Ixekizumab combined with hemoperfusion had achieved good clinical efficacy in the treatment of erythrodermic psoriasis. (本文回顾1例红皮病型银屑病血液透析患者临床资料, 使用依奇珠单抗注射联合血液灌流治疗。依奇珠单抗方案: 第一次皮下注射依奇珠单抗注射液80 mg, 此后每3周注射1次(共6次), 并以80 mg每月1次维持治疗; 透析方案: 血液透析治疗每周3次, 每2周进行1次血液灌流治疗。经1年多的观察, 患者全身皮损明显改善, 无鳞屑及皮肤瘙痒等表现, 提示依奇珠单抗联合血液灌流治疗红皮病型银屑病取得很好的临床疗效。)

Published
2023
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39. Spectral ghost imaging camera with super-Rayleigh modulator

Author

Liu, Shengying, Liu, Zhentao, Hu, Chenyu, Li, Enrong, Shen, Xia, and Han, Shensheng

Subjects
Physics - Optics, Electrical Engineering and Systems Science - Image and Video Processing
Abstract

A spectral camera based on ghost imaging via sparsity constraints (GISC) acquires a spectral data-cube (x; y; {\lambda}) through a single exposure. The noise immunity of the system is one of the important factors affecting the quality of the reconstructed images, especially at low sampling rates. Tailoring the intensity to generate super-Rayleigh speckle patterns which have superior noise immunity may offer an effective route to promote the imaging quality of GISC spectral camera. According to the structure of GISC spectral camera, we proposed a universal method for generating super-Rayleigh speckle patterns with customized intensity statistics based on the principle of reversibility of light. Simulation and experimental results demonstrate that, within a wide imaging spectral bandwidth, GISC spectral camera with super-Rayleigh modulator not only has superior noise immunity, but also has higher imaging quality at low sampling rates. This work will promote the application of GISC spectral camera by improving the quality of imaging results, especially in weak-light illumination., Comment: 11 pages, 12 figures

Published
2019
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41. Ghost imaging LiDAR via sparsity constraints using push-broom scanning

Author

Ma, Shuang, Liu, Zhentao, Wang, Chenglong, Hu, Chenyu, Li, Enrong, Gong, Wenlin, Tong, Zhishen, Wu, Jianrong, Shen, Xia, and Han, Shensheng

Subjects
Electrical Engineering and Systems Science - Image and Video Processing, Physics - Optics
Abstract

Ghost imaging LiDAR via sparsity constraints using push-broom scanning is proposed. It can image the stationary target scene continuously along the scanning direction by taking advantage of the relative movement between the platform and the target scene. Compared to conventional ghost imaging LiDAR that requires multiple speckle patterns staring the target, ghost imaging LiDAR via sparsity constraints using push-broom scanning not only simplifies the imaging system, but also reduces the sampling number. Numerical simulations and experiments have demonstrated its efficiency.

Published
2019
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