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Obstructive sleep apnea-hypopnea syndrome immunological relationship
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作者 Mahmoud Ali Alaa Ramadan Salim Surani 《World Journal of Clinical Cases》 SCIE 2024年第27期6011-6014,共4页
Obstructive sleep apnea-hypopnea syndrome(OSAHS)is a complex disorder cha-racterized by symptoms resulting from intermittent hypoxia and hypopnea,with research indicating a crucial role of immune system dysregulation ... Obstructive sleep apnea-hypopnea syndrome(OSAHS)is a complex disorder cha-racterized by symptoms resulting from intermittent hypoxia and hypopnea,with research indicating a crucial role of immune system dysregulation and genetic variations in its pathogenesis.A recent Zhao et al study utilizes Mendelian ran-domization analysis to explore the causal relationship between immune cell characteristics and OSAHS.The study identifies specific lymphocyte subsets as-sociated with OSAHS,providing valuable insights into the disease's pathophy-siology and potential targets for therapeutic intervention.The findings underscore the significance of genetic and immunological factors in sleep disorders,offering a fresh perspective on OSAHS's complexities.Compared to existing literature,Zhao et al's study stands out for its focus on genetic markers and specific immune responses associated with OSAHS,expanding upon previous research primarily centered on systemic inflammation.In conclusion,the study represents a signi-ficant advancement in the field,shedding light on the causal role of immune cells in OSAHS and paving the way for future research and targeted treatments. 展开更多
关键词 Obstructive sleep apnea Mendelian randomization Lymphocyte charac-teristics IMMUNOLOGY Obstructive sleep apnea-hypopnea syndrome
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Isolation and Biological Characteristics of Bacteriophage of an Antibiotic-resistant Escherchia coli Strain 被引量:1
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作者 李淑芳 邓瑞玲 +3 位作者 张帅领 张智慧 梁垲珊 张继东 《Agricultural Science & Technology》 CAS 2016年第12期2692-2695,2706,共5页
In this study, bacteriophage of an antibiotic-resistant Escherchia coil strain isolated from feces of chicken was isolated. Its host range was determined by the method of spotting sample on monolayer agar, and its lys... In this study, bacteriophage of an antibiotic-resistant Escherchia coil strain isolated from feces of chicken was isolated. Its host range was determined by the method of spotting sample on monolayer agar, and its lysis titer, optimal multiplicity of infection (MOI), temperature tolerance and pH tolerance were determined by the double-layer agar plate method. The results showed that the bacteriophage had a broad host range. The biological assay demonstrated that two strains of E. coil were fully lysed and one strain of E. coil was weakly lysed by the bacteriophage. The lysis titer and MOI of the bacteriophage were 1.20×10^8 PFU/ml and 1, respec- tively. Under the optimum temperature of 40℃, the Jysis titer of the bacteriophage reached 8.90×10^9 PFU/ml; however, the bacteriophage lost its infectivity at the tem- perature of 80℃. In the pH range of 5-11, the lysis titer of the bacteriophage ranged from10^6 to 10^9 PFU/mI. Under the condition of pH 4 and 12, the bacterio- phage was invalid. 展开更多
关键词 BACTERIOPHAGE Escherchia coli Antibiotic resistance Biological charac-teristics
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Characterization of TGMS Line 33S in Rice
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作者 谢红军 汤国华 +1 位作者 余应弘 吴升高 《Agricultural Science & Technology》 CAS 2015年第4期719-721,共3页
The research expIored morphoIogical characteristics, fertiIity, and tralts re-Iating to outcrossing of 33S which was of good shapes in pIant and Ieaf, with Iow infertiIity temperature, earIy fIowering period, high fIo... The research expIored morphoIogical characteristics, fertiIity, and tralts re-Iating to outcrossing of 33S which was of good shapes in pIant and Ieaf, with Iow infertiIity temperature, earIy fIowering period, high fIowering rate before noon, and good tralts reIating to outcrossing. 展开更多
关键词 Hybrid rice 33S Thermo-sensitive genie male sterility (TGMS) charac-teristics
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Developments of parabolic equation method in the period of 2000–2016 被引量:2
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作者 徐传秀 唐骏 +2 位作者 朴胜春 刘佳琪 张士钊 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第12期106-117,共12页
Parabolic equation (PE) method is an efficient tool for modelling underwater sound propagation, particularly for problems involving range dependence. Since the PE method was first introduced into the field of underw... Parabolic equation (PE) method is an efficient tool for modelling underwater sound propagation, particularly for problems involving range dependence. Since the PE method was first introduced into the field of underwater acoustics, it has been about 40 years, during which contributions to extending its capability has been continuously made. The most recent review paper surveyed the contributions made before 1999. In the period of 2000-2016, the development of PE method basically focuses on seismo-acoustic problems, three-dimensional problems, and realistic applications. In this paper, a review covering the contribution from 2000 to 2016 is given, and what should be done in future work is also discussed. 展开更多
关键词 parabolic equation method underwater sound propagation seismo-acoustic transmission charac-teristics modelling three-dimensional problems
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Multi–physical-field characteristics modeling and structure optimization for kW-level ultra-high-speed PM motors with integrated support system
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作者 Qixing GAO Xiaolin WANG Yan ZHANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2023年第4期455-467,共13页
In the aerospace industry,the low-mass ultra-high-speed flywheel system play a critical role.In this paper,a kW-level Ultra-High Speed Permanent Magnet Synchronous Motor(UHSPMSM)as the core component of flywheel syste... In the aerospace industry,the low-mass ultra-high-speed flywheel system play a critical role.In this paper,a kW-level Ultra-High Speed Permanent Magnet Synchronous Motor(UHSPMSM)as the core component of flywheel system is proposed and analyzed with consideration of multiple physical fields,including electromagnetic characteristics,mechanical strength and rotor dynamics.The integrated support structure is put forward to improve rotation accuracy and operation stability of the UHSPMSM.Further,influence of the integrated support structure on critical speed is explored,and the key parameters such as support position and support stiffness are designed.Moreover,the rotor strength is analyzed by analytical model developed of rotor stress that can deal with multiple boundary types.Material and thickness of the sleeve are optimized,and range of interference value is accurately limited based on four extreme operating conditions.The 3-D Finite Element Model(FEM)is used to validate the strength characteristics and stress distribu-tion of rotor.A 1.5 kW-150000 r/min UHSPMSM with integrated support system is manufactured and tested.The feasibility of UHSPMSM proposed and the accuracy of analysis method are verified through electromagnetic,temperature rise and vibration characteristics test.The machine prototype realizes the load operation at rated speed and the multi-physical-field characteristics achieve the design specification. 展开更多
关键词 Flywheel energy storage Integrated support system Multi–physical-field charac-teristics Mechanical strength Rotor dynamics Ultra-high-speed motor
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Kinetic modeling of multiphase fow based on simplified Enskog equation 被引量:4
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作者 Yu-Dong Zhang Ai-Guo Xu +2 位作者 Jing-Jiang Qiu Hong-Tao Wei Zung Hang Wei 《Frontiers of physics》 SCIE CSCD 2020年第6期133-145,共13页
A new kinetic model for multiphase flow was presented under the framework of the discrete Boltzmann method(DBM).Significantly different from the previous DBM,a bottom-p approach was adopted in this model.The effects o... A new kinetic model for multiphase flow was presented under the framework of the discrete Boltzmann method(DBM).Significantly different from the previous DBM,a bottom-p approach was adopted in this model.The effects of molecular size and repulsion potential were described by the Enskog collision model;the attraction potential was obtained through the mean field approximation method.The molecular interactions,which result in the non-ideal equation of state and surface tension,were directly introduced as an external force term.Several typical benchmark problems,including Couette flow,two-phase coexistence curve,the Laplace law,phase separation,and the collision of two droplets,were simulated to verify the model.Especially,for two types of droplet collisions,the strengths of two non-equilibrium ffcts,D*2 and D*3,defined through the second and third order non-conserved kinetic moments of(f-feq),are comparatively investigated,where f(feq)is the(equilibrium)distribution function.It is interesting to find that during the collision process,D*2is always significantly larger than D*3,D*2 can be used to identify the different stages of the collision process and to distinguish different types of collisions.The modeling method can be directly extended to a higher.order model for the case where the non-equilibrium pffect is strong,and the linear constitutive law of viscous stress is no longer valid. 展开更多
关键词 multiphase flow discrete Boltzmann method Enskog equation non-equilibrium charac-teristics
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Characteristics Study of Weibo Users' Interactions
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作者 LIU Jing LI Shijun 《Wuhan University Journal of Natural Sciences》 CAS CSCD 2015年第6期499-504,共6页
An individual's personal network is a basic object of study in sociology. This article analyzes and compares sina-weibo users' personal network size based on over 2 billion tweets gath- ered from over 1.3 million us... An individual's personal network is a basic object of study in sociology. This article analyzes and compares sina-weibo users' personal network size based on over 2 billion tweets gath- ered from over 1.3 million users in 2012. We propose a new measure method for the analysis of user interactions based on how an individual divides his attention across contacts and how user's characteristics affect the interactions. We find that the balance of attention of user with different age and gender is quite different in weibo. It displays interesting variation in both different groups of people and different modes of interaction. 展开更多
关键词 social network microblog INTERACTION user charac-teristics
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Non-selfsimilar Global Solutions and Their Structure for the Multi-dimensional Combustion Models
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作者 Kai HU Gao-wei CAO Xiao-zhou YANG 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2017年第3期659-678,共20页
We investigate the Chapman-Jouguet model in multi-dimensional space, and construct explicitly its non-selfsimilar Riemann solutions. By the method we apply in this paper, general initial discontinuities can be dealt w... We investigate the Chapman-Jouguet model in multi-dimensional space, and construct explicitly its non-selfsimilar Riemann solutions. By the method we apply in this paper, general initial discontinuities can be dealt with, even for complex interaction of combustion waves. Furthermore, we analyze the way in which the area of unburnt gas shrinks. 展开更多
关键词 chapman-Jouguet model multi-dimensional Riemann problem non-selfsimilar solutions charac-teristic analysis
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