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Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-Ying Chen Fa Shen Chang Cheng Yu-Han Wang Wen-Chao Cheng De-Zhi yuan Wen huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report

Model test on dynamic characteristics of invert and foundation soils of high-speed railway tunnel

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Earthquake Engineering and Engineering Vibration 2015年第3期14卷 549-559页

作者： huang Juan yuan Tieying Peng Limin Yu Jun ding Zude School of Civil Engineering Central South University Faculty of Civil Engineering and Mechanics Kunming University of Science and Technology

A dynamic model test(CL = 4) at different velocities of train,namely different loading frequencies,is carried out to study the dynamic characteristics of a high-speed railway tunnel invert and its foundation *** only are the accelerations,dynamic coefficients,dynamic stresses of the invert and foundation soils emphatically analyzed,their relationship with the velocity of the train are discussed in *** laboratory testing,the attenuation of vibration propagating from up the rails is obtained and the calculation formula of the speed influence coefficient of the tunnel invert is preliminarily *** depth of the foundation soils influenced by vibration is also determined in this *** is shown that the responses of the tunnel invert and foundation soils to vibration are slightly increased with the velocity of the train;circumferential stresses in the bottom of the invert are tensile stresses and maximum stresses appear under the foot of the rails;the dynamic soil pressures of the foundation decrease quickly with the distance away from the tunnel invert and an exponential relationship exists between them.

关键词： high speed railway tunnel dynamic characteristic m

Weak signal detection method based on Duffing oscillator with adjustable frequency

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Science China(Information Sciences) 2015年第10期58卷 159-167页

作者： MA SongShan LU Ming ding JiaFeng huang Wei yuan Hong School of Physics and Electronics Central South University The Third Xiangya Hospital Central South University

In this paper, we present a new system of weak signal detection based on Duffing oscillator with adjustable frequency, in which the frequency of periodic driving force signal can be fixed at a certain value and make the system to be in a same critical chaotic state. Therefore, by adjusting an adjustable signal frequency,the detection system we propose can detect signals of different frequencies in the same critical chaotic state, and overcome the limitation of the previous system which can only detect a signal of a specific frequency in a critical chaotic state. Meanwhile, we analyzed its system performance according to simulation and designed the circuit of the system. Based on the results of simulation and actual condition, we find the system is effective for weak signal detection. We can also find that in the proposed system, the signal detection accuracy increases firstly and then decreases with the increase in amplitude of adjustable signal, while the input noise variance is *** addition, in the improved system, the smaller the variance of the input noise is, the higher the detection accuracy is, and the wider the adjustable operating range is.

关键词： Duffing oscillator weak signal detection adjustable frequency critical chaotic state noise

Neuropeptide cholecystokinin:a key neuromodulator for hippocampal functions

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Neural Regeneration Research 2025年第7期20卷 1991-1992页

作者： Fengwen huang Stephen Temitayo Bello Department of Neuroscience City University of Hong KongKowloon TongHong Kong Special Administrative RegionChina Center for Regenerative Medicine and Health Hong Kong Institute of Science&InnovationChinese Academy of SciencesHong Kong Special Administrative RegionChina

Spatial memory is crucial for survival within external surroundings and wild *** hippocampus,a critical hub for spatial learning and memory formation,has received extensive investigations on how neuromodulators shape its functions(Teixeira et al.,2018;Zhang et al.,2024).However,the landscape of neuromodulations in the hippocampal system remains poorly understood because most studies focus on classical monoamine neuromodulators,such as acetylcholine,serotonin,dopamine,and *** neuropeptides,comprising the most abundant neuromodulators in the central nervous system,play a pivotal role in neural information processing in the hippocampal ***(CCK),one of the most abundant neuropeptides,has been implicated in regulating various physiological and neurobiological statuses(Chen et al.,2019).CCK-A receptor(CCK-AR)and CCK-B receptors(CCK-BR)are two key receptors mediating the biological functions of CCK,both of which belong to class-A sevenfold transmembrane G protein-coupled receptors(Nishimura et al.,2015).CCK-AR preferentially reacts to sulfated CCK,whereas CCK-BR binds both CCK and gastrin with similar affinities(ding et al.,2022).The expression patterns of CCK-AR and CCK-BR are distinct,implying that CCK has various functions in target *** instance,CCK-AR is widely expressed in the GI and brain subregions and is hence implicated in the control of digestive function and satiety ***,CCK-BR is abundantly and widely distributed in the central nervous system,which majorly regulates anxiety,learning,and memory(ding et al.,2022).However,the roles of endogenous CCK and CCK receptors in regulating hippocampal function at electrophysiological and behavioral levels have received less attention.

关键词： abundant functions modulator

Self-Adaptive Control System for Additive Manufacturing Using Double Electrode Micro Plasma Arc Welding

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Chinese Journal of Mechanical Engineering 2021年第3期34卷 285-298页

作者： Nan Li ding Fan Jiankang huang Shurong Yu Wen yuan Miaomiao Han School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050China State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of TechnologyLanzhou 730050China School of Mechanical and Electrical Engineering Lanzhou University of TechnologyLanzhou 730050China

Wire arc additive manufacturing(WAAM)has been investigated to deposit large-scale metal parts due to its high deposition efficiency and low material ***,in the process of automatically manufacturing the high-quality metal parts by WAAM,several problems about the heat build-up,the deposit-path optimization,and the stability of the process parameters need to be well *** overcome these issues,a new WAAM method based on the double electrode micro plasma arc welding(DE-MPAW)was *** circuit principles of different metal-transfer models in the DE-MPAW deposition process were analyzed *** effects between the parameters,wire feed rate and torch stand-off distance,in the process of WAAM were investigated *** addition,a real-time DE-MPAW control system was developed to optimize and stabilize the deposition process by self-adaptively changing the wire feed rate and torch stand-off ***,a series of tests were performed to evaluate the control system’s *** results show that the capability against interferences in the process of WAAM has been enhanced by this self-adaptive adjustment ***,the deposition paths about the metal part’s layer heights in WAAM are ***,the appearance of the WAAM-deposited metal layers is also improved with the use of the control system.

关键词： Double electrode microplasma arc welding Additive manufacturing Wire feed rate Torch stand-off distance Self-adaptive adjustment

X射线透视引导下不同方式建立兔椎间盘退变模型的结果对比

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中国组织工程研究 2025年第5期29卷 995-1002页

作者：丁至立黄杰蒋强李土胜刘江丁宇安徽医科大学海军临床学院北京市100048 安徽医科大学第五临床医学院安徽省合肥市230032 解放军总医院第六医学中心中医医学部骨伤科北京市100048

背景:国内外学者认为新西兰大白兔腰椎解剖形态与人类腰椎更为相似,是理想的模型动物。在X射线引导下采用不同方式建立兔椎间盘退变模型目前尚缺乏系统性比较。目的:基于X射线引导采用针刺法、终板注射法以及改良终板注射法建立兔腰椎... 详细信息

背景:国内外学者认为新西兰大白兔腰椎解剖形态与人类腰椎更为相似,是理想的模型动物。在X射线引导下采用不同方式建立兔椎间盘退变模型目前尚缺乏系统性比较。目的:基于X射线引导采用针刺法、终板注射法以及改良终板注射法建立兔腰椎间盘退变模型,比较3种方法造模的效果。方法:6月龄新西兰大白兔16只随机分为4组,分别为针刺组、终板注射组、改良终板注射组及空白对照组,针刺组对3个连续节段(L2/3、L3/4、L4/5)椎间盘进行针刺造模,终板注射组在3个连续节段终板单点注射50μL无水乙醇,改良终板注射组对3个连续节段椎间盘进行针刺并在相应节段终板4个方位点注射50μL无水乙醇,空白对照组不进行干预。术后2,4,8周进行X射线检查,测量椎间隙高度指数,然后取椎间盘组织进行解剖学观察、病理学检查。结果与结论:①解剖学观察显示,针刺组以纤维环破溃为主要表现,终板注射组主要以髓核退变为主要表现,改良终板注射组以全椎间盘结构紊乱为主要表现;②与空白对照组相比,针刺组术后2周椎间隙高度指数降低最明显,终板注射组术后2,4周椎间隙高度指数降低明显,改良终板注射组术后2,4,8周椎间隙高度指数均显著降低;③病理学检查显示,针刺组纤维环结构出现破损,内层纤维环向内凸入,终板注射组表现为终板裂隙、排列混乱及细胞核丢失,改良终板注射组表现为整体椎间盘结构紊乱,髓核失水皱缩,与破损的纤维环无明显边界。结果表明,针刺法、终板注射法及改良终板注射法均能建立兔椎间盘退变模型,改良终板注射法较单一方法可大幅加快并加重椎间盘退变,可有效缩短实验周期。

关键词：组织工程椎间盘退变纤维环穿刺法终板注射法 X射线新西兰大白兔

Signature of high-order azimuthal MHD body modes in sunspot's low atmosphere

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Research in Astronomy and Astrophysics 2015年第9期15卷 1449-1454页

作者： ding yuan Centre for mathematical Plasma Astrophysics Department of Mathematics

The five-minute oscillations inside sunspots appear to be the absorption of the solar p-mode. It is a potential tool to probe a sunspot＇s sub-structure. We studied the collective properties of five-minute oscillations in the power and phase distribution at the sunspot＇s umbra-penumbra boundary. The azimuthal distributions of the power and phase of five-minute oscillations enclosing a sunspot＇s umbra were obtained with images taken with the Solar Dynamics Observatory/Atmospheric Imaging Assembly （SDO/AIA）. The azimuthal modes were quantified with periodogram analysis and justified with significance tests. The azimuthal nodal structures in an approximately ax- ially symmetric sunspot AR 11131 （2010 Dec 08） were investigated. Mode numbers ra = 2, 3, 4, 7, 10 were obtained in both 1700 A and 1600A bandpasses. The 1600A channel also revealed an extra mode at m = 9. In the upper atmosphere （304 A）, fewer modes were detected at m = 3, 4, 7. The azimuthal modes in the sunspot＇s low atmo- sphere could be interpreted as high-order azimuthal MHD body modes. They were detected in the power and phase of the five-minute oscillations in sunspot AR 11131 with SDO/AIA data. Fewer modes were detected in the sunspot＇s upper atmosphere.

关键词： Sun atmosphere - Sun UV radiation -- Sun sunspots

Enhanced post-combustion CO2 capture and direct air capture by plasma surface functionalization of graphene adsorbent

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Journal of Energy Chemistry 2025年第01期 653-664页

作者： Rahul Navik Eryu Wang Xiao ding huang Yunyi Yiyu Liu Jia Li Guangdong-Hong Kong Joint Laboratory for Carbon Neutrality Jiangmen Laboratory of Carbon and Science and Technology Guangzhou HKUST Fok Ying Tung Research Institute The Hong Kong University of Science and Technology (Guangzhou) Carbon Neutrality and Climate Change Thrust Society Hub The Hong Kong University of Science and Technology (Guangzhou) Stoddart Institute of Molecular Science Department of Chemistry Zhejiang University

Graphene has enormous potential to capture CO2due to its unique properties and ***,graphene-based adsorbents have drawbacks of lower CO2adsorption capacity and poor *** work demonstrates a one-step rapid and sustainable N2/H2plasma treatment process to prepare graphene-based sorbent material with enhanced CO2adsorption *** treatment directly enriches amine species,increases surface area,and improves textural *** CO2adsorption capacity increases from 1.6 to 3.3 mmol/g for capturing flue gas,and from 0.14 to 1.3 mmol/g for direct air capture （DAC）.Importantly,the electrothermal property of the plasma-modified aerogels has been significantly improved,resulting in faster heating rates and significantly reducing energy consumption compared to conventional external heating for regeneration of *** aerogels display improved selectivity of 42 and 87 after plasma modification for 5 and 10 min,*** plasma-treated aerogels display minimal loss between 17%and 19% in capacity after 40 adsorption/desorption cycles,rendering excellent *** N2/H2plasma treatment of adsorbent materials would lower energy expenses and prevent negative effects on the global economy caused by climate change.

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A Fiber Optic Sensor for 2-cholrophenol Analysis based on Oxygen Sensing System

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Journal of Wuhan University of Technology(Materials Science) 2014年第6期29卷 1178-1182页

作者：贡晶晶 huang Xinting huang Jun ding Liyun LI Kun yuan Yinquan National Engineering Laboratory for Fiber Optic Sensing Technology Wuhan University of Technology Key Laboratory of Fiber Optic Sensing Technology and Information Processing (Wuhan University of Technology) Ministry of Education Faculty of Mechanical & Electronic Information China University of Geosciences

A fiber optic 2-cholrophenol（2-CP） sensor was developed based on the fluorescence quenching of molecular oxygen on the oxygen-sensitive membrane and O2 consumption during catalytic oxidation reaction of 2-CP. The 2-CP concentration can be determined by utilizing a lock-in amplifier to measure the change in the fluorescence lifetime of an oxygen-sensitive membrane, in which the tris（2,2′-bipyridyl） ruthenium（II） chloride complexes（Ru（II）（byp）3Cl2） were immobilized in cellulose acetate（CA） via simple hybridized approach. The experimental results show the good linear relationship between the phase delay of sensitive membrane and 2-CP concentration in its detection range of 1×10-7 to 1×10-5 mol/L and 1×10-5 to 1×10-4 mol/L. The detection limit of the sensor is 7×10-8 mol/L（S/N=3） and the response time is 5 min. Our experimental measurements confirmed good response characteristics of the as-prepared fiber optic 2-CP sensor, as well as its capability to detect the 2-CP concentration in practical water samples.

关键词： fiber optic sensor 2-chlorophenol oxygen-sensitive membrane fluorescence quenching