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Remote monitoring of implantable cardioverters defibrillators:a comparison of acceptance between octogenarians and younger patients

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Journal of Geriatric Cardiology 2020年第7期17卷 417-426页

作者： Iva Safarikova alan Bulava Premysl Hajek Faculty of Health and Social Sciences the University of South Bohemia in Ceske BudejoviceCeske BudejoviceCzech Republic Cardiac Center Department of CardiologyCeske Budejovice HospitalCeske BudejoviceCzech Republic Faculty of Medicine and Dentistry of Palacky University Olomouc OlomoucCzech Republic

Background Remote monitoring(RM)is increasingly employed for all types of cardiac implantable devices(CIED).However,there are only limited data on the acceptance of RM by the *** aim of our study was to ascertain how octogenarians assess RM technologies compared to younger,presumably technically more literate patients,and what concerns or technical problems the system presents to both groups of *** The trial was designed as a descriptive,register-based single-center *** study population consisted of all consecutive patients≥80 years of age(group A,n=94)and all consecutive patients aged≤40 years(group B,n=71),who had undergone implantation of an implantable cardioverter-defibrillator(ICD)between the years of 2009 and 2018 and were using a Home Monitoring?(HM,Biotronik,Berlin,Germany)*** patients fulfilling entry criteria were approached with a request to participate in the *** A total of 85(90.4%)and 65(91.5%)valid surveys were obtained for groups A and B,***-two percent of patients in both groups(P=0.903)were satisfied with the limited number of planned ambulatory follow-ups(i.e.,once a year).All patients in both groups(100%)reported that they were satisfied with the HM system,and 97%and 94%of patients in Groups A and B,respectively,ranked it highly beneficial(P=0.68).A significant proportion of patients in both groups were completely unaware of any health-related benefits associated with the use of the HM system(42%in Group A vs.49%in Group B,P=0.4).Among the most frequently reported personal benefits of HM were a sense of safety and security and savings on travel expenses and time.5%and 9%of patients in Groups A and B,respectively,reported that usage of HM caused them some degree of psychological stress(P=0.27).Nearly all patients in both groups reported receiving information on HM from their doctor after ICD *** of Group A reported receiving information from a nurse either before or after

关键词： Education Implantable electronic devices Remote monitoring The elderly

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Optimizing the use of biological therapy in patients with inflammatory bowel disease

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Gastroenterology Report 2015年第1期3卷 63-68页

作者： alan C.Moss Division of Gastroenterology Beth Israel Deaconess Medical Center&Harvard Medical SchoolBostonMAUSA

Biological therapy revolutionized the treatment of inflammatory bowel disease(IBD)during the last *** monoclonal antibodies,which target tumor necrosis factor(TNF),integrins or IL12/23,have been approved—or are in development for—both Crohn’s disease(CD)and ulcerative colitis(UC).Early use of these agents taught clinicians that induction and maintenance therapy,coupled with immunomodulator agents,reduced the immunogenicity of these agents,and led to sustained remission in many *** recent data has demonstrated that,through dose adjustments,optimizing serum drug levels may also provide more durable maintenance of remission,and improved mucosal *** review examines clinical practices that may enhance clinical outcomes from biological therapy in IBD.

关键词： inflammatory bowel disease biological therapy

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Measurement Sensitivity and Estimation Error in Distribution System State Estimation using Augmented Complex Kalman Filter

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Journal of Modern Power Systems and Clean Energy 2020年第4期8卷 657-668页

作者： alan Louis Gerard Ledwich Geoff Walker Yateendra Mishra IEEE Queensland University of Technology BrisbaneAustralia

Distribution state estimation(DSE)is an essential part of an active distribution network with high level of distributed energy *** challenges of accurate DSE with limited measurement data is a well-known *** practice,the operation and usability of DSE depend on not only the estimation accuracy but also the ability to predict error *** paper investigates the application of error covariance in DSE by using the augmented complex Kalman filter(ACKF).The Kalman filter method inherently provides state error covariance *** can be utilized to accurately infer the error covariance of other parameters and provide a method to determine optimal measurement locations based on the sensitivity of error covariance to measurement noise *** paper also proposes a generalized formulation of ACKF to allow scalar measurements to be incorporated into the complex-valued *** proposed method is simulated by using modified IEEE 34-bus and IEEE 123-bus test feeders,and randomly generates the load data of complex-valued Wiener *** ACKF method is compared with an equivalent formulation using the traditional weighted least squares(WLS)method and iterated extended Kalman filter(IEKF)method,which shows improved accuracy and computation performance.

关键词： Augmented complex Kalman filter direct load flow distribution system state estimation error variance sensitivity analysis

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Phase constitution of the noble metal thin-film complex solid solution system Ag-Ir-Pd-Pt-Ru in dependence of elemental compositions and annealing temperatures

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Nano Research 2022年第6期15卷 4827-4836页

作者： Bin Xiao Xiao Wang alan Savan Alfred Ludwig Materials Discovery and Interfaces Institute for MaterialsRuhr University Bochum44780 BochumGermany Zentrum für Grenzflächendominierte Höchstleistungswerkstoffe(ZGH) Ruhr University Bochum44780 BochumGermany

Multiple-principal element alloys hold great promise for multifunctional material discovery(e.g.,for novel electrocatalysts based on complex solid solutions)in a virtually unlimited compositional ***,the phase constitution of the noble metal system Ag-Ir-Pd-Pt-Ru was investigated over a large compositional range in the quinary composition space and for different annealing temperatures from 600 to 900°C using thin-film materials ***-dependent X-ray diffraction mapping of the asdeposited thin-film materials library indicates different phases being present across the composition space(face-centered cubic(fcc),hexagonal close packed(hcp)and mixed fcc+hcp),which are strongly dependent on the Ru *** general,low Ru contents promote the fcc phase,whereas high Ru contents favor the formation of an hcp solid-solution ***,a temperature-induced phase transformation study was carried out for a selected measurement area of fcc-Ag_(5)Ir_(8)Pd_(56)Pt_(8)Ru_(23).With increasing temperature,the initial fcc phase transforms to an intermediate C14-type Laves phase at 360°C,and then to hcp when the temperature reaches 510°*** formation and disappearance of the hexagonal Laves phase,which covers a wide temperature range,plays a crucial role of bridging the fcc to hcp phase *** obtained composition,phase and temperature data are transformed into phase maps which could be used to guide theoretical studies and lay a basis for tuning the functional properties of these materials.

关键词： noble metal high-entropy alloys phase transformation combinatorial synthesis and high-throughput characterization

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Solar-absorbing metamaterial microencapsulation of phase change materials for thermo-regulating textiles

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International Journal of Smart and Nano Materials 2015年第2期6卷 105-112页

作者： William Tong alan Tong Illinois Mathematics and Science Academy AuroraIL 60506USA Neuqua Valley High School NapervilleIL 60564USA

This paper presents a novel concept for designing solar-absorbing metamaterial microcapsules of phase change materials(PCMs)integrated with thermo-regulating smart textiles intended for coats or garments,especially for wear in space or cold weather on *** metamaterial is a periodically nanostructured metal-dielectric-metal thin film and can acquire surface plasmons to trap or absorb solar energy at subwavelength *** kind of metamaterial microencapsulation is not only able to take advantage of latent heat that can be stored or released from the PCMs over a tunable temperature range,but also has other advantages over conventional polymer microencapsulation of PCMs,such as enhanced thermal conductivity,improved flame-retardant capabilities,and usage as an extra solar power *** thermal analysis for this kind of microencapsulation has been done and can be used as a guideline for designing integrated thermo-regulating smart textiles in the *** metamaterial microcapsules may open up new routes to enhancing thermo-regulating textiles with novel properties and added value.

关键词： metamaterial microencapsulation phase change material thermo-regulating textile

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基于回授式健康教育的延续护理方案对内窥镜下声带息肉摘除术患者嗓音康复的影响

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黑龙江医学 2024年第2期48卷 205-207页

作者：江阿兰李灵郑星福建医科大学附属第一医院耳鼻咽喉头颈外科福建福州350004

目的:探讨基于回授式健康教育的延续护理方案对内窥镜下声带息肉摘除术患者嗓音康复的影响,为临床护理干预提供依据。方法:选取2021年1—12月福建医科大学附属第一医院收治的64例行内窥镜下声带息肉摘除术的患者作为研究对象,采用随机... 详细信息

目的:探讨基于回授式健康教育的延续护理方案对内窥镜下声带息肉摘除术患者嗓音康复的影响,为临床护理干预提供依据。方法:选取2021年1—12月福建医科大学附属第一医院收治的64例行内窥镜下声带息肉摘除术的患者作为研究对象,采用随机数表法分为对照组与回授组,每组各32例。对照组接受常规院外随访,回授组接受基于回授式健康教育的延续护理方案,两组患者均干预1个月。比较两组患者干预前后嗓音障碍程度[中文版嗓音障碍指数(VHI)量表评分]、嗓音声学参数[基频微扰(Jitter)、振幅微扰(Shimmer)、噪谐比(NHR)、最高基频(Fhigh)、最长发声时间(MPT)]情况。结果:干预1个月,回授组患者VHI量表中F、P、E 3个维度评分及T评分均明显低于对照组患者,差异有统计学意义(t=4.567、8.468、6.697、6.577,P<0.05)。干预1个月,回授组患者Jitter、Shimmer、NHR及嗓音障碍严重指数(DSI)显著低于对照组患者,MPT显著长于对照组患者,差异有统计学意义(t=10.219、4.243、5.657、3.628、6.754,P<0.05)。结论:构建并实施基于回授式健康教育的延续护理方案,有利于促进内窥镜下声带息肉摘除术患者的声带功能恢复,提高嗓音质量。

关键词：内窥镜下声带息肉摘除术回授式健康教育延续护理嗓音康复

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Equal Sex Ratios of a Marine Green Alga, Bryopsis plumosa

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Journal of Integrative Plant Biology 2008年第6期50卷 648-652页

作者： Tatsuya Togashi Paul alan Cox Marine Biosystems Research Center Chiba University Institute for Ethnomedicine Box 3464 Jackson Hole Wyoming 83001 USA Institute for Ethnomedicine Box 3464 Jackson Hole

By finding some important culture conditions as below, we succeeded in experimentally controlling the whole life history of a dioecious marine green alga, Bryopsis plumosa （Hudson） C. Agardh. In this study, we focused on the primary and secondary sex ratios （i.e. at inception and maturity） using these culture techniques. Gametogenesis was induced by culturing haploid gametophytes with Provasoli＇s enriched seawater （PES） medium under a 14：10 h light： dark cycle at 14 ℃. Formed zygotes grew into diploid sporophytes, which were cultured for 3 months with PES medium under a 14：10 h light ： nbsp;dark cycle at 18℃. Then they were transferred into Schreiber medium and cultured under a 10：14 h light： dark cycle at 22℃. Within 1 week, zoosporogenesis was observed. Zoospores were released within a couple of days. Each zoospore soon germinated and grew into a unisexual gametophyte. The primary sex ratio was examined in gametophytes that originated from a single sporophyte. The secondary sex ratio was studied in the field. Both were estimated as 1：1. Synchronized meiotic cell divisions might occur during zoosporogenesis dividing each sex-determining factor evenly among zoospores. Given the equal sex ratio at maturity, there seems to be no environmental factor that differentially affects the survival of male or female gametophytes in nature.

关键词： algal culture Bryopsis green algae life history sex ratio.

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A Heterogeneous Virtual Machines Resource Allocation Scheme in Slices Architecture of 5G Edge Datacenter

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Computers, Materials & Continua 2019年第7期61卷 423-437页

作者： Changming Zhao Tiejun Wang alan Yang College of Computer Science Sichuan UniversityChengdu610041China School of Computer Science Chengdu University of Information TechnologyChengdu610225China Amphenol AssembleTech HoustonTX 77070US

In the paper,we investigate the heterogeneous resource allocation scheme for virtual machines with slicing technology in the 5G/B5G edge computing *** general,the different slices for different task scenarios exist in the same edge layer synchronously.A lot of researches reveal that the virtual machines of different slices indicate strong heterogeneity with different reserved resource *** the condition,the allocation process is a NP hard problem and difficult for the actual demand of the tasks in the strongly heterogeneous *** on the slicing and container concept,we propose the resource allocation scheme named Two-Dimension allocation and correlation placement Scheme(TDACP).The scheme divides the resource allocation and management work into three stages in this paper:In the first stage,it designs reasonably strategy to allocate resources to different task slices according to *** the second stage,it establishes an equivalent relationship between the virtual machine reserved resource capacity and the Service-Level Agreement(SLA)of the virtual machine in different *** the third stage,it designs a placement optimization strategy to schedule the equivalent virtual machines in the physical ***,it is able to establish a virtual machine placement strategy with high resource utilization efficiency and low time *** simulation results indicate that the proposed scheme is able to suppress the problem of uneven resource allocation which is caused by the pure preemptive scheduling *** adjusts the number of equivalent virtual machines based on the SLA range of system parameter,and reduces the SLA probability of physical servers effectively based on resource utilization time sampling series *** scheme is able to guarantee resource allocation and management work orderly and efficiently in the edge datacenter slices.

关键词： Heterogeneous virtual machine resource allocation edge computing slicing

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Magnesium: From fundamental research to future applications

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Journal of Magnesium and Alloys 2023年第12期11卷 4357-4358页

作者： alan A.Luo Jiashi Miao The Ohio State University ColumbusOH 43210USA

Magnesium(Mg), the lightest structural metal and the eighth most abundant element on the earth's crust, has traditionally been used as an “industrial metal” in transportation, electronics, aluminum alloying, steel desulfurization, and protective anodes;and recently shown significant potential to become a “technology metal” in a variety of new applications from energy storage/battery to biomedical products [1].

关键词： alloying steel battery

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Precise Electro-thermal Power Loss Model of a Three-level ANPC Inverter with Hybrid Si/SiC Switches

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Chinese Journal of Electrical Engineering 2022年第3期8卷 76-89页

作者： Dereje Woldegiorgis H.alan Mantooth Department of Electrical Engineering University of ArkansasFayettevilleAR 72701USA

Hybrid Si/SiC switches constituting a parallel connection of a lower current rated SiC MOSFET and a higher current rated Si IGBT are becoming very attractive solution for designing high frequency and high-power density power electronic *** to the complementary nature of Si IGBT devices(smaller inverter cost and smaller conduction loss)and SiC devices(smaller switching loss and higher junction temperature capability),these novel switch device configurations enable a good tradeoff between cost and efficiency for high power converter *** such recent application of hybrid Si/SiC switches for efficiency-cost optimization is an Si/SiC hybrid switch based ANPC inverter proposed in Ref.[30].In Ref.[30]the topology structure,modulation strategy and the efficiency-cost benefits of the proposed ANPC inverter is *** this paper a precise electro-thermal power loss model for this ANPC inverter topology will be presented based on the modulation strategy of the inverter and the operating characteristics of the Si/SiC hybrid *** power loss model development takes into account how the current sharing between the two internal devices of the Si/SiC hybrid switches and their corresponding gate control method affects their power loss.A brief introduction to the topology structure and operation principle of the Si/SiC based ANPC inverter is first highlighted to provide context for readers and then a detailed description of the proposed electro-thermal power loss model is *** precision of the electro-thermal power loss model introduced in this paper is then validated using experimentally measured energy loss,device temperature and inverter efficiency data.

关键词： Cost reduction power loss model efficiency improvement ANPC inverter

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