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LLM4CP:Adapting Large Language Models for Channel Prediction

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Journal of Communications and Information Networks 2024年第2期9卷 113-125页

作者： Boxun Liu Xuanyu Liu Shijian Gao Xiang Cheng liuqing yang State Key Laboratory of Advanced Optical Communication Systems and Networks School of ElectronicsPeking UniversityBeijing 100871China Internet of Things Thrust The Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400China Internet of Things Thrust and Intelligent Transportation Thrust The Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400China Department of Electronic and Computer Engineering and Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyHong KongChina

Channel prediction is an effective approach for reducing the feedback or estimation overhead in massive multi-input multi-output (m-MIMO) systems. However, existing channel prediction methods lack precision due to model mismatch errors or network generalization issues. Large language models (LLMs) have demonstrated powerful modeling and generalization abilities, and have been successfully applied to cross-modal tasks, including the time series analysis. Leveraging the expressive power of LLMs, we propose a pre-trained LLM-empowered channel prediction(LLM4CP)method to predict the future downlink channel state information (CSI) sequence based on the historical uplink CSI sequence. We fine-tune the network while freezing most of the parameters of the pre-trained LLM for better cross-modality knowledge transfer. To bridge the gap between the channel data and the feature space of the LLM,preprocessor, embedding, and output modules are specifically tailored by taking into account unique channel characteristics. Simulations validate that the proposed method achieves state-of-the-art (SOTA) prediction performance on full-sample, few-shot, and generalization tests with low training and inference costs.

关键词： channel prediction massive multi-input multi-output(m-MIMO) large language models(LLMs) fine-tuning time-series

Isolation and characterization of mpox virus from the first mpox case in Shenzhen,China

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Virologica Sinica 2024年第2期39卷 335-337页

作者： Lin Cheng liuqing yang Miao Wang Yabo Peng Haiyan Wang Xiaoxiang yang Juanjuan Zhao Mingxia Zhang Fuxiang Wang Zheng Zhang Institute for Hepatology National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalShenzhen518112China Department of Infectious Diseases Shenzhen Third People's HospitalShenzhen 518112China The Second Affiliated Hospital School of MedicineSouthern University of Science and TechnologyShenzhen 518112China

Dear Editor,Unlike previous outbreaks of the mpox(previously known as monkeypox),which were localized in Africa and resulted in small numbers of infections due to limited human-to-human transmission,the current outbreak beginning in May 2022,has spread rapidly primarily through human-to-human transmission in non-endemic countries(Gong et al.,2022).As of 27 Sep 2023,115 countries and regions have reported cases of mpox to the World Health Organization(WHO),bringing the total number of confirmed cases to 90,618 including 125 *** the number of new cases has decreased in most WHO regions in the second half of 2022,the curves reveal a long outbreak tail in different subregions of the *** worrying,106 mpox cases were reported in the mainland of China in June 2023.

关键词： mainland bringing

Mechanisms of Dangua Fang(丹瓜方)in multi-target and multi-method regulation of glycolipid metabolism based on phosphoproteomics

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Journal of Traditional Chinese Medicine 2024年第2期44卷 334-344页

作者： HENG Xianpei WANG Zhita LI Liang yang liuqing HUANG Suping JIN Lang HE Weidong Department of Endocrinology People's Hospital Affiliated to Fujian University of Traditional Chinese MedicineFuzhou 350004China Academy of Integrative Medicine Fujian University of Traditional Chinese MedicineFuzhou 350122China Faculty of Humanities and Management Fujian University of Traditional Chinese MedicineFuzhou 350122China Department of Geriatrics People's Hospital Affiliated to Fujian University of Traditional Chinese MedicineFuzhou 350004China

OBJECTIVE:To explore the mechanism of Dangua Fang(丹瓜方,DGR)in multi-target and multi-method regulation of glycolipid metabolism based on ***:Sprague-Dawley rats with normal glucose levels were randomly divided into three groups,including a conventional diet control group(Group A),high-fat-highsugar diet model group(Group B),and DGR group(Group C,high-fat-high-sugar diet containing 20.5 g DGR).After 10 weeks of intervention,the fasting blood glucose(FBG),2 h blood glucose[PBG;using the oral glucose tolerance test(OGTT)],hemoglobin A1c(HbA1c),plasma total cholesterol(TC),and triglycerides(TG)were tested,and the livers of rats were removed to calculate the liver ***,hepatic portal TG were tested using the Gross permanent optimization-participatiory action planning enzymatic method and phosphoproteomics was performed using liquid chromatography with tandem mass spectrometry(LC-MS/MS)analysis followed by database search and bioinformatics ***,cell experiments were used to verify the results of *** mitogen-activated protein kinase kinase kinase kinase 4(MAP4k4)and phosphorylated adducin 1(ADD1)were detected using western ***:DGR effectively reduced PBG,TG,and the liver index(P1.2),DGR upregulated the modification of 228 phosphorylation sites involving 204 corresponding function proteins,and downregulated the modification of 358 phosphorylation sites involving 358 corresponding function proteins,which includ

关键词： phosphoproteomics glycolipid metabolism therapeutic mechanism compound formula Dangua Fang

Research on the Damping Mechanism of Time-Delay Coupled Negative Stiffness Dynamic Absorber in Nonlinear Vibration Damping System

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Open Journal of Applied Sciences 2024年第4期14卷 818-832页

作者： Weikai Wang Yanying Zhao Qiqi Li Hao Wu liuqing yang School of Aircraft Engineering Nanchang Hangkong University Nanchang China

A study was conducted on the effect of time delay and structural parameters on the vibration reduction of a time delayed coupled negative stiffness dynamic absorber in nonlinear vibration reduction systems. Taking dynamic absorbers with different structural and control parameters as examples, the effects of third-order nonlinear coefficients, time-delay control parameters, and negative stiffness coefficients on reducing the replication of the main system were discussed. The nonlinear dynamic absorber has a very good vibration reduction effect at the resonance point of the main system and a nearby area, and when 1 increases to a certain level, the stable region of the system continues to increase. The amplitude curve of the main system of a nonlinear dynamic absorber will generate Hop bifurcation and saddle node bifurcation in the region far from the resonance point, resulting in almost periodic motion and jumping phenomena in the system. For nonlinear dynamic absorbers with determined structural parameters, time-delay feedback control can be adopted to control the amplitude of the main system. For different negative stiffness coefficients, there exists a minimum damping point for the amplitude of the main system under the determined system structural parameters and time-delay feedback control parameters.

关键词： Time Delay Nonlinear Dynamic Vibration Absorber

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《阙子》佚文考辨及人物寓言考论

中国文学研究 2024年第3期 33-41页

作者：杨柳青北京师范大学文学院北京100875

先秦纵横家子书《阙子》已佚,清代辑佚学家马国翰、顾观光均有辑本。对现存佚文考辨后可知,由于失注出处且多从文多者补正,多条佚文存在择取欠精的疏陋,此外还可补辑出新佚文。《阙子》现存佚文均为人物寓言,题材丰富且颇具艺术价值。... 详细信息

先秦纵横家子书《阙子》已佚,清代辑佚学家马国翰、顾观光均有辑本。对现存佚文考辨后可知,由于失注出处且多从文多者补正,多条佚文存在择取欠精的疏陋,此外还可补辑出新佚文。《阙子》现存佚文均为人物寓言,题材丰富且颇具艺术价值。其寓言不乏对《庄子》的继承,如多以钓说理、多贬低宋人并持有相似的言辞观。阙子融合了以庄子为代表的“空语型”和以孟子、韩非子为代表的“事实型”两种战国寓言题材,还曾与庄子、荀子取用同一寓言素材,其所处时代大致为战国后期。《阙子》寓言流传甚广,被后世频繁征引,足见其寓言之精妙,其流传方式主要有三种:引用事典佐证、化用事典说理、对事典进行改编。

关键词：《阙子》佚文考辨寓言典故

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区域一体化分工—合作视角下的都市圈高质量国土空间治理

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中国土地科学 2024年第2期38卷 11-21页

作者：杨柳青陈雯中国科学院南京地理与湖泊研究所江苏南京210008 中国科学院大学资源与环境学院北京100049

研究目的:阐释都市圈国土空间区域一体化分工分区与合作治理的逻辑关联与实践思路,为都市圈国土空间高质量治理提供理论和实践借鉴。研究方法:理论分析,案例归纳法。研究结果:都市圈国土空间功能分工分区可以确立开发与保护的基本格局,... 详细信息

研究目的:阐释都市圈国土空间区域一体化分工分区与合作治理的逻辑关联与实践思路,为都市圈国土空间高质量治理提供理论和实践借鉴。研究方法:理论分析,案例归纳法。研究结果:都市圈国土空间功能分工分区可以确立开发与保护的基本格局,实现因地制宜、优势互补的空间发展和分类管控。跨行政区空间合作是实现生态和经济收益最大化的空间分工发展的手段。毗邻和非毗邻地区的跨行政区空间合作,包括互补型、连通型、共享型三种类型,常常面临信息不对称引起的空间规划不对接“逆向选择”和地域间合作成本收益不对等导致的不合作“道德风险”两种障碍,需要通过畅通信息渠道、组织利益协商、上级政府协调才能破除障碍,推动合作。研究结论:都市圈国土空间治理的核心要义在于空间分工与合作,分工是合作的科学依据,合作是实现分工的手段。成本共担—利益共享是合作的目标准则,信息沟通、利益协商、自上而下的协调是均衡地域间成本收益、推动合作成功的驱动力。

关键词：都市圈国土空间治理空间分工跨界合作高质量发展

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中央苏区干部教育实践的探索与启示

教育学术月刊 2024年第7期 53-57页

作者：杨柳青豫章师范学院学前教育学院党委景德镇陶瓷大学南昌330103

文章从苏区干部教育的内涵与意义,苏区干部教育的实践特质,中央苏区干部教育的实践启示三个方面阐释了中央苏区干部教育体系。中央苏区在艰苦朴素的环境下构建起丰富系统、务实高效的干部教育体系,其在教育形式上具备分层分级的灵活性... 详细信息

文章从苏区干部教育的内涵与意义,苏区干部教育的实践特质,中央苏区干部教育的实践启示三个方面阐释了中央苏区干部教育体系。中央苏区在艰苦朴素的环境下构建起丰富系统、务实高效的干部教育体系,其在教育形式上具备分层分级的灵活性、教育主题上具备指引方向的政治性、教育内容上具备应急应需的实用性、教育方法上具备深学细悟的启发性。让新生的革命队伍在复杂多变的斗争环境中快速成长成熟,成为引领中国前进方向的核心政治力量,也为当前强化党员干部教育、有效应对百年未有之大变局提供了珍贵教益与深刻启示。

关键词：苏区干部教育实践

Successful treatment of severe monkeypox case with advanced HIV infection using plasma from smallpoxvaccinated healthy population:A case report

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iLABMED 2024年第1期2卷 60-66页

作者： Chuming Chen Weiming Yao Siran Huang Ling Peng Shiyan Feng Weibo Wu Yunlan Yi Zhiqiang Cheng yang yang Yan yang liuqing yang Hongzhou Lu Fuxiang Wang Department of Infectious Diseases National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalThe Second Affiliated HospitalSchool of MedicineSouthern University of Science and TechnologyShenzhenGuangdongChina Department of Pathology National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalThe Second Affiliated HospitalSchool of MedicineSouthern University of Science and TechnologyShenzhenGuangdongChina Department of Blood Transfusion National Clinical Research Center for Infectious DiseaseShenzhen Third People's HospitalThe Second Affiliated HospitalSchool of MedicineSouthern University of Science and TechnologyShenzhenGuangdongChina

Since the first reported case of monkeypox in the UK in May 2022,there has been an upward trend in monkeypox cases and a global ***,reports of severe cases are relatively *** this study,we report a case of severe monkeypox in a patient with *** patient presented with skin lesions that started on his face and around the penis and persisted for several *** the course of the disease,he received systematic symp-tomatic supportive treatment,topical remedies,and special care for the *** also underwent cidofovir antiviral therapy and smallpox‐vaccinated healthy population‐derived plasma therapy in succession,with the condition ultimately showing improvement after plasma *** more than 3 months of hospitalization,he fully *** the best of our knowledge,this is the first reported use of smallpox‐vaccinated healthy population‐derived plasma in the treatment of severe monkeypox cases.

关键词： antiviral therapy co‐infection HIV monkeypox plasma therapy severe infection

基于改进平衡优化算法的折叠翼飞行器自抗扰控制器设计

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北京航空航天大学学报 2024年第8期50卷 2449-2460页

作者：孟志鹏杨柳庆王波刘燕斌军事科学院国防科技创新研究院北京100071 南京航空航天大学无人机研究院南京210016 南京航空航天大学航天学院南京210016

针对折叠翼飞行器(FWV)模型误差和抗扰动能力较差及自抗扰控制器(ADRC)人工参数整定难的问题,提出一种基于莱维飞行的改进平衡优化(LEO)算法。给出典型FWV动力学模型,基于ADRC结构设计一种FWV的姿态控制器;在此基础上用所提算法整定了A... 详细信息

针对折叠翼飞行器(FWV)模型误差和抗扰动能力较差及自抗扰控制器(ADRC)人工参数整定难的问题,提出一种基于莱维飞行的改进平衡优化(LEO)算法。给出典型FWV动力学模型,基于ADRC结构设计一种FWV的姿态控制器;在此基础上用所提算法整定了ADRC参数,并从控制性能和抗干扰的角度对经参数优化后的ADRC和传统ADRC进行仿真对比;将所提算法与经典平衡优化算法、粒子群优化(PSO)算法等进行仿真对比。仿真结果表明:所提算法优化的控制器能提高FWV的控制精度和扰动抑制性能,验证了所提算法在解决ADRC参数优化问题时的优越性。对搭载优化后ADRC的样机进行实飞验证,结果表明:在风扰之下,FWV样机仍具有较好的飞行性能指标,进一步验证了所提算法优化的ADRC对FWV抗扰能力的提升。

关键词：折叠翼飞行器改进平衡优化算法莱维飞行自抗扰控制器姿态控制