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Journal of Rare Earths 2020年第3期38卷 265-273页

作者： M.A.Almessere Y.Slimani h.Güngünes A.Baykal Department of Physics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Department of Biophysics Institute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia Department of Physics Hitit University19030Cevre Yolu Bulvan-CorumTurkey Department of Nano-Medicine Research Institute for Research&Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityP.O.Box 198231441DammamSaudi Arabia

This study presents the influence of Zn and Nd co-substitution on structure,morphology,AC susceptibility and ZFC-FC magnetizations of Sr nanohexaferrites(NhFs),SrFe12-x(Zn,Nd)xO19(0.0≤x≤1.0),which was produced by sol-gel *** powder patterns,scanning electron microscopy(SEM) and high-resolution transmission electron spectroscopy(hR-TEM) approve the synthesis of Sr M-type *** spectra show that Zn^2+ions occupy 2 b and 4f1 sites while Nd3+ions locate at 2 a,4f2 and 12 k *** magnetic properties of the produced Sr-NhFs were investigated also by ZFC-FC magnetizations and AC *** to the MFC-MZFC results(between 2 and 400 K),no blocking temperature was detected which indicates the ferromagnetic(FM) behavior of *** lower temperatures,a super-spin glass like behavior is *** AC susceptibility indicates that the magnetic interactions are improved due to the inclusion of low content(x=0.1) of Nd^3+and Zn^2+ions into the ***,with further increasing the Nd^3+and Zn^2+contents(x=0.9),the magnetic interactions are weakened.

关键词： Sr hexaferrites Rare earths Mossbauer spectroscopy AC susceptibility ZFC-FC

Breath monitoring,sleep disorder detection,and tracking using thin-film acoustic waves and open-source electronics

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Nanotechnology and Precision Engineering 2022年第3期5卷 9-17页

作者： Jethro Vernon Pep Canyelles-Pericas hamdi Torun Richard Binns Wai Pang ng Qiang Wu yong-Qing Fu Faculty of Engineering and Environment University of NorthumbriaNewcastle upon Tyne NE18STUnited Kingdom Department of Integrated Devices and Systems MESA+Institute for NanotechnologyUniversity of TwenteEnschede 7522 NBThe Netherlands

Apnoea,a major sleep disorder,affects many adults and causes several issues,such.as fatigue,high blood pressure,liver conditions,increased risk of type II diabetes,and h.art ***,advanced monitoring and diagnosing tools of apnoea disorders are needed to facilitate better treatment,with.advantages such.as accuracy,comfort of use,cost effectiveness,and embedded computation capabilities to recognise,store,process,and transmit time series *** this work we present an adaptation of our apnoea-Pi open-source surface acoustic wave(SAW)platform(Apnoea-Pi)to monitor and recognise apnoea in *** platform is based on a thin-film SAW device using bimorph ZnO and Al structures,including those fabricated as Al foils or plates,to achieve breath tracking based on humidity and temperature *** applied open-source electronics and provided embedded computing characteristics for signal processing,data recognition,storage,and transmission of breath *** show that the thin-film SAW device out-performed standard and off-the-shelf capacitive electronic sensors in terms of their response and accuracy for human breath-tracking *** in combination with embedded electronics makes a suitable platform for human breath monitoring and sleep disorder recognition.

关键词： Surface acoustic waves Sleep disorder Apnoea Open-source electronics Pattern recognition Piezoelectric thin film

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从消费税的设置目的谈我国消费税改革

消费经济 2005年第2期21卷 31-33页

作者：何志静暨南大学经济学院广东广州510632

我国现行的消费税是1994年税改设置的税种,设置目的是为调节产品结构、引导消费方向、保证国家收入。经过十多年的经济发展,我国的现行消费税制在一些方面已经与其设置目的不相符,这就要求我们对现行的消费税制进行改革,更好的发挥消费... 详细信息

我国现行的消费税是1994年税改设置的税种,设置目的是为调节产品结构、引导消费方向、保证国家收入。经过十多年的经济发展,我国的现行消费税制在一些方面已经与其设置目的不相符,这就要求我们对现行的消费税制进行改革,更好的发挥消费税的特殊调节作用。

关键词：消费税设置目的改革中国课税范围税率

Composition Dependence of Surface Phonon Polariton Mode in Wurtzite InxGa1-xN （0 ≤ x ≤ 1） Ternary Alloy

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Chinese Physics Letters 2008年第12期25卷 4378-4380页

作者： S. S. ng Z. hassan h. Abu hassan Nano-Optoelectronics Research.and Technology Laboratory School of Physics Universiti Sains Malaysia 11800 Minden Pulau Pinang Malaysia

We present a theoretical study on the composition dependence of the surface phonon polariton （SPP） mode in wurtzite structure α-InxGa1-xN ternary alloy over the whole composition range. The SPP modes are obtained by the theoretical simulations by means of an anisotropy model. The results reveal that the SPP mode of α-InxGa1-xN semiconductors exhibits one-mode behaviour. From these data, composition dependence of the SPP mode with bowing parameter of-28.9 cm^-1 is theoretically obtained.

关键词： field emission molybdenum dioxide enhancement factor

Incorporating geotechnical and geophysical investigations for underground obstruction detection:A case study

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Underground Space 2023年第4期11卷 116-129页

作者： Yaohui Liu Yannick C.h.ng Yunhuo zh.ng Ping Yang Taeseo Ku School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhou 221000China Department of Civil and Environmental Engineering National University of Singapore117576Singapore Geotechnical&Tunnel Division Land Transport Authority Singapore219428Singapore Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China Department of Civil and Environmental Engineering Konkuk UniversitySeoul 05029South Korea

Determining the location and boundary of underground obstructions and/or anomalies is a common problem and often a great chal-lenge for tunneling and underground *** this study,geotechnical investigations(penetration tests and borehole drilling/sam-pling)and geophysical investigations(surface wave method and cross-hole seismic method)were conducted with the aim of identifying the location and boundary of rock obstructions in Changi East,*** surface wave method is frequently used in the sites with lateral homogeneity in previous studies,but its application in the sites with rock obstructions is *** experimental results of this study indicate that the surface wave method is also able to determine the upper surface of rock obstructions,but difficult to identify the lateral and bottom boundaries of rock *** improve the precision of detection,the full waveform inversion(FWI)method was used to process the data from the cross-hole seismic *** results indicate that the inversion precision of P-wave is higher than that of *** horizontal and vertical ranges of rock obstructions in the P-wave inversion results are 14–26 m and 7.5–11.0 m respectively,roughly consistent with the results of penetration tests(about 15–25 m)and borehole log(8.85–10.80 m).This result proves that the sequential application of first-arrival time analysis and FWI can effectively delineate the boundary of rock ***,the results of various detection methods were analyzed and compared in this *** the advantages of various methods,we propose a cost-effective and high-precision workflow containing both geotechnical and geophysical investigations.

关键词： FWI Geotechnical and geophysical investigations Cross-hole seismic method Surface wave method Obstruction detection

Study on Single-fiber Pull-out Method for Evaluating Interfacial Strength in CFRP

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high Technology Letters 1995年第1期1卷 105-108页

作者： Yudong, h. zhiqian, zh. Lixun, L. Qiwei, L. harbin Inst of Technology Harbin China

Single-fiber pull-out testing (SFPOT) methods are frequently used to evaluate the interfacial adhesion between fiber and matrix in composite materials. To make such pull-out measurements, however, the length of embedded fiber must be small enough so that the fiber does not break before it is pulled freely. This is difficult to achieve by conventional methods with fibers of small diameter, such.as the carbon fibers. In this paper, a fiber pull-out experiment is described. Specialized apparatus in our laboratory, as well as this technique for sample preparation are discussed in detail. The interfacial sh.ar strength of carbon fiber/resin matrix composites is analyzed quantitatively by using the finite-element method. The SFPOT system has been proved to be an available means for the study of interfacial properties for carbon fiber/resin matrix composites.

关键词： Carbon fiber Composite materials Interfacial sh.ar strength Single-fiber pull-out

A pan-cancer fingerprint:common molecular denominators of the human tumor microenvironment

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Signal Transduction and Targeted Therapy 2021年第12期6卷 3371-3372页

作者： Susanna S.ng Sonia Leonardelli Michael hölzel Institute of Experimental Oncology University Hospital BonnUniversity of Bonn53127 BonnGermany

In a recent study published in Cancer Cell,Bagaev et *** a pan-cancer tumor microenvironment(TME)classification that can be predictive of response to immune checkpoint inhibitor(ICI)therapy.1 The authors presented a detailed visualization that can be generated for each tumor,which combines the 29 functional gene expression signatures(Fges)used to subtype the TME with targetable genomic *** the compartments and path.ays within the TME could aid decision-making in patient-specific treatment of cancer,especially in the context of immunotherapies.2 The increasing use of ICIs have shown promising clinical outcomes in several cancer ***,response to treatment is heterogenous and often results in immune-related adverse events.3 Therefore,efforts are focused on the development of prognostic tools to predict response to *** analysis of 468 melanoma patients resulted in grouping of the TME into four major subsets based on manually curated Fges.

关键词： cancer alterations

MXene:From synthesis to environment remediation

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Chinese Journal of Chemical Engineering 2023年第9期61卷 260-280页

作者： Ali Nikkhah hasan Nikkhah hadis langari Alireza Nouri Abdul Wahab Mohammad Ang Wei Lun ng law yong Rosiah Rohani Ebrahim Mahmoudi Department of Chemical and Process Engineering Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan MalaysiaBangi 43600Malaysia Department of Mechanical and Aerospace Engineering University at BuffaloBuffaloUSA Department of Chemical and Biomolecular Engineering University of ConnecticutStorrsUSA Department of Chemistry and Medicinal Chemistry University at BuffaloBuffaloUSA Chemical and Water Desalination Engineering Program College of EngineeringUniversity of SharjahSharjah 27272United Arab Emirates Lee Kong Ch.an Faculty of Engineering and Science Universiti Tunku Abdul RahmanJalan Sungai LongBandar Sungai LongKajangSelangorMalaysia

A new burgeoning family of two-dimensional(2D)transition metal carbides/nitrides,better known as MXenes,have received extensive attention because of their distinct properties,such.as metallic conductivity,good hydrophilicity,large surface area,good mechanical stability,and *** 40 different MXenes have been synthesized,and dozens more structures and properties have been theoretically ***,the recent progress in MXenes development is not well covered in chronological order based on different *** review article focuses on emerging synthesis methods,the properties of MXenes,and mainly the applications of MXenes and MXene-based material family in environmental remediation,a comprehensive review of gaseous and aqueous pollutants treatment.

关键词： MXene 2D materials Wastewater treatment CO_(2)capture Adsorption Photodegradation

Update on Carotid Stenting and Endarterectomy

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International Journal of Clinical Medicine 2021年第10期12卷 433-440页

作者： Puay yong ng Mt Elizabeth Medical Centre Singapore

The role of carotid stenting and endarterectomy has been evolving over the past few decades. Results of recent randomized trials have added more insights to the indications of the two established interventions for symptomatic moderate to severe stenosis as well as asymptomatic carotid stenosis. Despite a wide range of complication rates in various trials for both symptomatic and asymptomatic carotid stenosis, benefits of the two interventions have been consistently demonstrated for symptomatic moderate stenosis as well as asymptomatic severe stenosis albeit with lower benefit margin for asymptomatic disease. Intervention for asymptomatic carotid stenosis should only be considered when the complication rate can be maintained below 3%.

关键词： Carotid Stenosis Stenting

System Dynamic Modelling of Patient Flow and Transferral Problem in a Mixed Public-Private h.alth.are System:A Case Study of hong Kong SAR

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Journal of Systems Science and Systems Engineering 2020年第5期29卷 590-608页

作者： C.K.M.LEE W.C.TAI Kam K.h.ng Department of Industrial and Systems Engineering The Hon g Kong Polytechnic UniversityHung HornHong Kong SARChina School of Mechanical and Aerospace Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore

The current h.alth.are system in hong Kong is experiencing pressure due to constrained resources,with dramatic increases in inpatient services queue lengths,dissatisfaction with the working environment,unacceptable workforce arrangements and high turnover rate of hospital *** maintain the robustness of the h.alth.are system and a sustainable inpatients flow,the Food and h.alth Bureau launched a public-private partnership programme to utilise the resources of the public and private *** research investigates the potential for extension of the programme and further enhancing the sustainability of the long-term inpatient services under a mixed public-private h.alth.are policy via system dynamic *** findings show that an increase of human resources in public hospitals does not substantially improve inpatient flow rate ***,the results from the system dynamic approach provide insights into the expansion of the service areas of the programme and suggest increasing the number of referrals to private hospitals.

关键词： System dynamic models scenario analysis inpatient transferral mixed public-private h.alth.are system