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Chinese Journal of Polymer Science 2018年第4期36卷 546-554页

作者： Li-Wen hu Li Liang Yong Yang ting Guo yu-Hao Zhang Wei Yang Yong Cao Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology

Green light-emitting polyfluorenes containing 3,7-bis（4-hexylthiophen-2-yl）dibenzo[b,d]thiophene 5,5-dioxide（DHTSO）unit were *** the resulted polymers show high thermal stability with the decomposition temperatures（T_d）over 420°C and the glass transition temperatures（T_g）over 75°*** polymers exhibit the enhanced highest occupied molecular orbital（HOMO）energy levels and the depressed lowest unoccupied molecular orbital（LUMO）energy levels with the increase of DHTSO unit in *** photoluminescence（PL）spectra of the polymers show positive solvatochromism in solution with the variation of solution polarities,indicating remarkable intramolecular charge transfer（ICT）effect in the polymers containing DHTSO *** fluorescence quantum yields（（37）_（PL））are in the range of 34%-67%for PF-DHTSOs in *** polymers possess two photon absorption（TPA）properties,and the TPA cross sections（？_2）are enhanced with increasing DHTSO unit in *** highest？_2 is 2392 GM for PF-DHTSO15 in chloroform solution upon 740 nm *** device of PF-DHTSO15 shows green emission with the Commission Internationale de L’.Eclairage（CIE）coordinates of（0.26,0.59）,and the maximum luminous efficiency（LE_（max））of 10.8 cd·A^（-1） with the configuration of ITO/PEDOT：PSS/EL/Cs F/*** results indicate that introducing DHTSO unit into polyfluorene backbone could be a promising molecular design strategy for TPA and effective green-light emission.

关键词： DHTSO Polyfluorene TPA Green emission PLED

Fabrication and thermal stability of Ni-P coated diamond powder using electroless plating

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International Journal of Minerals,Metallurgy and Materials 2011年第4期18卷 479-486页

作者： Ying-hu Dong Xin-bo He Ud-din Cai-yu Guo Liang Xu yu-ting huang Xuan-hui Qu School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China School of Materials Science and Engineering Nanchang Hangkong University Nanchang 330063 China Fuel Cell Division Pakistan Institute of Nuclear Science and Technology Islamabad 44000 Pakistan

Ni-P coated diamond powder was fabricated successfully by using electroless *** of active solutions,plating time,reaction temperature,and the components of the plating bath on the Ni-P coating were investigated ***,a study on the thermal stability of Ni-P coated diamond under various atmospheres was *** results indicate that Pd atoms absorbed on the diamond surface as active sites can consequently enhance the deposition rate of Ni *** optimized plating bath and reaction conditions improve both the plating speed and the coverage rate of Ni-P electroless plating on the diamond *** to the diamond substrate,the diamond coated with Ni-P films exhibits very high thermal stability and can be processed up to 900°C in air and 1300°C in protective atmosphere such as H2.

关键词： synthetic diamonds electroless plating thermal stability particulates

Role of exosomes in metastasis and therapeutic resistance in esophageal cancer

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World Journal of Gastroenterology 2023年第42期29卷 5699-5715页

作者： Xing-yu Ning Jin-hu Ma Wei He Jun-ting Ma The Second School of Clinical Medicine Anhui Medical UniversityHefei 230032Anhui ProvinceChina School of Basic Medical Sciences Anhui Medical UniversityHefei 230032Anhui ProvinceChina

Esophageal cancer(EC)has a high incidence and mortality rate and is emerging as one of the most common health problems *** to the lack of sensitive detection methods,uncontrollable rapid metastasis,and pervasive treatment resistance,EC is often diagnosed in advanced stages and is susceptible to local *** are important components of intercellular communication and the exosome-mediated crosstalk between the cancer and surrounding cells within the tumor microenvironment plays a crucial role in the metastasis,progression,and therapeutic resistance of *** the critical role of exosomes in tumor pathogenesis,this review focused on elucidating the impact of exosomes on EC metastasis and therapeutic ***,we summarized the relevant signaling pathways involved in these *** addition,we discussed the potential clinical applications of exosomes for the early diagnosis,prognosis,and treatment of EC.

关键词： Exosomes Esophageal cancer Tumor microenvironment Metastasis Signaling pathway Therapeutic resistance

Uniform lithium deposition induced by copper phthalocyanine additive for durable lithium anode in lithium-sulfur batteries

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Chinese Chemical Letters 2024年第5期35卷 447-452页

作者： ting hu yuxuan Guo Yixuan Meng Ze Zhang Ji yu Jianxin Cai Zhenyu Yang Key Laboratory of Jiangxi Province for Environment and Energy Catalysis School of Chemistry and Chemical EngineeringNanchang UniversityNanchang 330031China

Copper phthalocyanine(CuPc)is adopted as an electrolyte additive to stabilize lithium anode for lithiumsulfur(Li-S)*** with a planar molecular structure and lithiophilic N-containing group,is likely to be adsorbed on the surface of Li anode to form a coating layer,which can restrict the direct contact between Li anode and solvents,and guide the uniform deposition of Li^(+)*** Li||Li symmetric cells demonstrate a stable cycle performance,and Li||Cu cells show high Coulombic *** Li-S batteries,the formed stable solid-electrolyte interface(SEI)film containing copper sulfides can protect Li anode from the polysulfide corrosion and side reactions with the electrolyte,leading to the compact and smooth surface morphology of Li ***,the Li-S batteries with CuPc additive deliver much higher capacity,better cycle performance and rate capability as compared to the one without CuPc additive.

关键词： Copper phthalocyanine Electrolyte additive Stable SEI film Stabilized Li anode Lithium-sulfur batteries

Challenges and opportunities in improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve replacement

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Frontiers of Medicine 2021年第3期15卷 416-437页

作者： Xu yu Jin Mario Petrou Jiang ting hu Ed D Nicol John R Pepper Surgical Echo-Cardiology Services Oxford Heart CentreJohn Radcliffe HospitalOxford University Hospitals NHS Foundation TrustOxford OX39DUUK Cardiac Surgical Physiology and Genomics Group Nuffield Division of Clinical Laboratory SciencesRadcliffe Department of MedicineUniversity of OxfordOxford OX39DUUK Department of Cardiac Surgery Royal Brompton HospitalLondon SW36NPUK National Heart and Lung Institute Imperial College LondonLondon SW36LYUK NIHR Imperial Biomedical Research Centre London W21NYUK Department of Cardiology Royal Brompton HospitalLondon SW36NPUK

Over the last half century,surgical aortic valve replacement(SAVR)has evolved to offer a durable and efficient valve haemodynamically,with low procedural complications that allows favourable remodelling of left ventricular(LV)structure and *** latter has become more challenging among elderly patients,particularly following trans-catheter aortic valve implantation(TAVI).Precise understanding of myocardial adaptation to pressure and volume overloading and its responses to valve surgery requires comprehensive assessments from aortic valve energy loss,valvular-vascular impedance to myocardial activation,force-velocity relationship,and myocardial *** hypertrophy and myocardial fibrosis remains as the structural and morphological focus in this *** intervention in asymptomatic aortic stenosis or regurgitation along with individualised management of hypertension and atrial fibrillation is likely to improve patient *** pacing via the His-Purkinje system for conduction abnormalities,further reduction in para-valvular aortic regurgitation along with therapy of angiotensin receptor blockade will improve patient outcome by facilitating hypertrophy regression,LV coordinate contraction,and global vascular *** leaflet thromboses require anticoagulation while impaired access to coronary ostia risks future TAVI-in-TAVI or coronary *** comparable long-term durability and the resolution of TAVI related complications become available,SAVR remains the first choice for lower risk younger patients.

关键词： surgical aortic valve replacement trans-catheter aortic valve implantation left ventricular hypertrophy and fibrosis myocardial force-velocity relationship His-Purkinje pacing renin-angiotensin system inhibitors coronary access impairment

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新型二维声子晶体带隙特性及调控方法研究

大连理工大学学报 2025年第1期65卷 48-55页

作者：胡启国胡皓魏晨胡豁然重庆交通大学机电与车辆工程学院重庆400074 国网重庆市电力公司信息通信分公司重庆401120

为拓宽声子晶体弹性波带隙,提出一种关于基体双侧对称的声子晶体结构模型.采用有限元法计算了该声子晶体的能带结构和本征模态,基于局域共振机理深入分析了其带隙的形成机理,通过改变几何参数及施加等轴预拉伸应变的方法对该声子晶体的... 详细信息

为拓宽声子晶体弹性波带隙,提出一种关于基体双侧对称的声子晶体结构模型.采用有限元法计算了该声子晶体的能带结构和本征模态,基于局域共振机理深入分析了其带隙的形成机理,通过改变几何参数及施加等轴预拉伸应变的方法对该声子晶体的带隙进行被动调控与主动调控.仿真结果表明:所提声子晶体结构基体中的长波行波与振子的谐振相互耦合作用产生一条局域共振带隙,通过优化几何参数可以获得起始频率更低的宽频带隙,对结构施加等轴预拉伸应变可以有效拓宽带隙且带隙宽度随着预拉伸应变的增大而变宽.研究结果为声子晶体的带隙主动调控提供了方案,为结构减振降噪提供了新思路.

关键词：声子晶体带隙特性带隙调控预拉伸应变

Improved isochronous mass spectrometry with tune measurement

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Nuclear Science and Techniques 2024年第11期35卷 174-181页

作者： Han-yu Deng yuan-Ming Xing Xu Zhou yu-hu Zhang Xin-Liang Yan Jin-Yang Shi ting Liao Meng Wang CAS Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

In conventional isochronous mass spectrometry(IMS)performed on a storage ring,the precision of mass measurements for short-lived nuclei depends on the accurate determination of the revolution times(T)of stored ***,the resolution of T inevitably deteriorates due to the magnetic rigidity spread of the ions,limiting the mass-resolving *** this study,we used the betatron tunes Q(the number of betatron oscillations per revolution)of the ions and established a correlation between T and *** this correlation,T was transformed to correspond to a fixed Q with higher *** these transformed T values,the masses of ^(63)Ge,^(65)As,^(67)Se,and ^(71)Kr agreed well with the mass values measured using the newly developed IMS(Bρ-IMS).We also studied the systematics of Coulomb displacement energies(CDEs)and found that anomalous staggering in CDEs was eliminated using new mass *** method of T transformation is highly effective for conventional IMS equipped with a single time-of-flight detector.

关键词： Isochronous Mass Spectrometry Storage ring Tune Natural chromaticity Nuclear mass measurement

米氏凯伦藻的培养条件及其抑制α-葡萄糖苷酶和血管紧张素I-转换酶活性的研究

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精细与专用化学品 2016年第11期24卷 20-23页

作者：陈宇婷胡晓娟赵莹李敏晶张敏李伟谭成玉大连海洋大学海洋科技与环境学院辽宁大连116023 大连海洋大学食品科学与工程学院辽宁大连116023

通过对米氏凯伦藻实验室培养条件中初始pH值、接种量、培养温度、光照等因素进行研究,探讨米氏凯伦藻的适宜培养条件,并对培养的米氏凯伦藻提取物进行抑制α-葡萄糖苷酶和血管紧张素I-转换酶(ACE)活性实验。结果表明,米氏凯伦藻的适宜... 详细信息

通过对米氏凯伦藻实验室培养条件中初始pH值、接种量、培养温度、光照等因素进行研究,探讨米氏凯伦藻的适宜培养条件,并对培养的米氏凯伦藻提取物进行抑制α-葡萄糖苷酶和血管紧张素I-转换酶(ACE)活性实验。结果表明,米氏凯伦藻的适宜培养条件为:初始pH值为7,接种量为100∶10,培养温度为30℃/25℃(昼/夜),光照强度为3500Lx。其水提物在浓度为8mg·mL^(-1)时对α-葡萄糖苷酶的抑制率为34.1%,在浓度为100mg·mL^(-1)时对ACE的抑制率为19.7%,具有一定的抑制活性。

关键词：米氏凯伦藻培养条件 α-葡萄糖苷酶 ACE

Apolipoprotein A1 suppresses the hypoxia-induced angiogenesis of human retinal endothelial cells by targeting PlGF

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International Journal of Ophthalmology(English edition) 2023年第1期16卷 33-39页

作者： Jie hu Zhu-ting Chen Kun-Yi Su yu Lian Lin Lu An-Di-Na hu State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangzhou 510060Guangdong ProvinceChina

AIM:To investigate the anti-angiogenic effect of apolipoprotein A1(apoA1)on primary human retinal vascular endothelial cells(HRECs)and explore the possible ***:The primary HRECs were transfected with apoA1-GFP recombinant lentiviral and were compared with cells undergoing transfection with empty lentiviral *** chambers were used to simulate the anoxic environment of cells under pathological *** concentrations of secreted vascular endothelial growth factor(VEGF)and placental growth factor(PlGF)were measured by enzyme-linked immunosorbent assay(ELISA).Cell migration ability was detected by wound healing *** sprouting of HRECs was determined by tube formation *** protein levels of extracellular signal regulated kinase 1/2(ERK1/2)and phosphor ylated ERK1/2(p-ERK1/2)were measured by Western ***:Overexpressed apoA1 in hypoxia-induced HRECs significantly suppressed PlGF(0.67±0.10 folds,P=0.007).Overexpressed apoA1 also attenuated hypoxiainduced cell migration(0.32±0.11 folds,Pting ERK1/2 in hypoxia-induced ***,apoA1 suppresses the PlGF expression,which selectively associated with pathological angiogenesis.

关键词： apolipoprotein A1 retinal neovascularization placental growth factor MEK/ERK signaling pathway

A Study on Performance and Reliability of Urethral Valve Driven by Ultrasonic-vaporized Steam

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International Journal of Automation and computing 2020年第5期17卷 752-762页

作者： Zhen hu Xiao Li ting Guan School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006China Guangzhou General Hospital of Guangzhou Military Command Guangzhou 510006China

The aim of this study is to investigate the performance and reliability of urethral valve driven by ultrasonic-vaporized *** performance model of urethral valve is established to analyze the driving and opening/closing performances of urethral *** reliability model of urethral valve is obtained,and the reliability simulation algorithm is proposed to calculate the reliability index of urethral *** numerical simulation and experimental results show that urethral valve has a good opening/closing performance,the driving performance can be improved by increasing ultrasonic intensity,radiation area and ultrasonic frequency,and the corrosion and aging of driving bags are the weak links of urethral valve.

关键词： Urethral valve ultrasonic opening/closing performance driving performance reliability