检索结果-南通市图书馆

npj Computational Materials 2023年第1期9卷 1443-1452页

作者： Amirkoushyar Ziabari S.V.Venkatakrishnan Zackary Snow Aleksander Lisovich Michael Sprayberry Paul Brackman curtis frederick Pradeep Bhattad Sarah Graham Philip Bingham Ryan Dehoff Alex Plotkowski Vincent Paquit Energy and Electrification Infrastructure Division Oak Ridge National LaboratoryKnoxvilleTN 37830USA ZEISS Industrial Metrology LLC Maple GroveMN 55369USA Manufacturing Science Division Oak Ridge National LaboratoryOak RidgeTNUSA Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTNUSA

Metal additive manufacturing(AM)offers flexibility and cost-effectiveness for printing complex parts but is limited to few *** new alloys requires process parameter optimisation to produce consistent,high-quality ***-resolution X-ray computed tomography(XCT)has not been effective for this task due to artifacts,slow scan speed,and *** propose a deep learning-based approach for rapid XCT acquisition and reconstruction of metal AM parts,leveraging computer-aided design models and physics-based simulations of nonlinear interactions between X-ray radiation and *** significantly reduces beam hardening and common XCT *** demonstrate high-throughput characterisation of over a hundred AlCe alloy components,quantifying improvements in characterisation time and quality compared to high-resolution microscopy and *** approach facilitates investigating the impact of process parameters and their geometry dependence in metal AM.

关键词： rapid alloy character

Reliability of a computerized system for strabismus screening

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第1期17卷 126-130页

作者： Supaporn Tengtrisorn Alan frederick Geater Department of Ophthalmology Faculty of MedicinePrince of Songkla UniversityHat-YaiSongkla 90110Thailand Epidemiology Unit Faculty of MedicinePrince of Songkla UniversityHat-YaiSongkla 90110Thailand

AIM:To evaluate the reliability of Photo-Hirschberg screening for global strabismus performed by non-specialized ***:Participants at three sites were *** person at each site was trained in visual acuity measurement and use of the computerized *** acuity was measured,and strabismus testing was performed using two flash *** data from the three primary observers were sent to an experienced assistant researcher,who was blinded to the primary results,for *** primary and re-evaluation results of the Photo-Hirschberg screenings using weighted kappa for agreement were ***:The study included 181 participants(88 males and 93 females)and the results for primary and re-evaluation screenings were *** participants with contrasting results presented with unclear corneal light *** and specificity were 100%[95%confidence interval(CI):29.0%-100%]and 99.4%(95%CI:96.6%-100%),respectively,based on the Agresti test of the primary evaluation,considering the re-evaluated classification as ***:The computerized system can be used for primary strabismus screening by non-specialized personnel,with 98.8%agreement with ***,it cannot be used as a substitute for professional examination.

关键词： strabismus screening computerized system Photo-Hirschberg screening

Do tensile and shear forces exerted on cells influence mechanotransduction through stored energy considerations?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

BIOCELL 2024年第4期48卷 525-540页

作者： frederick H.SILVER TANMAY DESHMUKH Department of Pathology and Laboratory Medicine Robert Wood Johnson Medical SchoolRutgersThe State University of New JerseyPiscatawayNJ 08854USA OptoVibronex LLC.Ben Franklin Tech PartnersBethlehemPA 18015USA

All tissues in the body are subjected externally to gravity and internally by collagenﬁbril and cellular retractive forces that create stress and energy equilibrium required for *** involves mechanical work(force through a distance)and energy storage as kinetic and potential *** leads to changes in cell mitosis or apoptosis and the synthesis or loss of tissue *** involves the application of energy directly to cells through integrin-mediated processes,cell-cell connections,stretching of the cell cytoplasm,and activation of the cell nucleus via yes-associated protein(YAP)and transcriptional coactivator with PDZ-motif(TAZ).These processes involve numerous complexes,intermediate molecules,and multiple *** pathways have been identiﬁed from research studies on vertebrate cell culture and from studies in *** pathways involve mechanosensors and other molecules that activate the *** review discusses the mitogen-activated protein kinase(MAPK)family,Hippo,Hedgehog,and Wingless-related integration site(WNT)/βcatenin signaling *** mediators covered includeβcatenin,ion channels,growth factors,hormone receptors,members of the Ras superfamily,and components of the linker of nucleoskeleton and cytoskeleton(LINC)***,the interrelationship among the different pathways remains to be clariﬁ***-mediated mechanotransduction involves direct tensile loading and energy applied to the cell membrane via collagenﬁbril *** energy is transferred between cells by stretching the cell-cell connections involving cadherins and the WNT/βcatenin *** alterations induce changes in intracellular events in the cytoskeleton and nuclear skeleton caused by the release of YAP and *** coactivators then penetrate through the nuclear pores and inﬂuence nuclear cell *** in the balance of forces and energy applied to cells and tissues is hypothesized to shift th

关键词： MAPK family Hippo Hedgehog WNT pathway βcatenin Ion channels Growth factor receptors Hormone receptors Ras superfamily LINC complex Collagen Cadherins

Unicompartmental knee arthroplasty vs high tibial osteotomy for knee osteoarthritis:A comparison of clinical and radiological outcomes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第5期15卷 444-456页

作者： frederick William Wyatt Oday Al-Dadah Translational and Clinical Research Institute Faculty of Medical SciencesNewcastle UniversityNewcastle Upon Tyne NE24HHUnited Kingdom Department of Trauma and Orthopaedic Surgery South Tyneside District HospitalSouth Shields NE340PLUnited Kingdom

BACKGROUND Unicompartmental knee arthroplasty(UKA)and high tibial osteotomy(HTO)are well-established operative interventions in the treatment of knee ***,which intervention is more beneficial to patients with knee osteoarthritis remains unknown and a topic of much ***,there is a paucity of research assessing the relationship between radiographic parameters of knee joint alignment and patient-reported clinical outcomes,preoperatively and following HTO or *** To compare UKAs and HTOs as interventions for medial-compartment knee osteoarthritis:Examining differences in clinical outcome and investigating the relationship of joint alignment with respect to *** This longitudinal observational study assessed a total of 42 patients that had undergone UKA(n=23)and HTO(n=19)to treat medial compartment knee ***-reported outcome measures(PROMs)were collected to evaluate clinical *** included two disease-specific(Knee Injury and Osteoarthritis Outcome Score,Oxford Knee Score)and two generic(EQ-5D-5L,Short Form-12)*** radiographic parameters of knee alignment assessed were the:Hip-knee-ankle angle,mechanical axis deviation and angle of Mikulicz *** Statistical analyses demonstrated significant(P<0.001),preoperative to postoperative,improvements in the PROM scores of both *** were,however,no significant inter-group differences in the postoperative PROM scores of the UKA and HTO *** significant correlations associated a more distolaterally angled Mikulicz line with worse knee function and overall health preoperatively(P<0.05).Postoperatively,two clusters of significant correlations were observed between the disease-specific PROM scores and knee joint alignment parameters(hip-knee-ankle angle,mechanical axis deviation)within the HTO group;yet no such associations were observed within the UKA *** UKAs and HTOs are both efficacious operations that provide a comp

关键词： Arthroplasty Osteotomy Medial compartment Osteoarthritis Knee alignment Patient reported outcome measures

Design and Experimental Testing of a Moving Coil Actuator with Compensation Coil

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2024年第2期10卷 707-716页

作者： Boyuan Yin Xianwu Zeng John frederick Eastham Emelie Nilsson Jean-francois Rouquette Jean Rivenc Ludovic Ybanez Xiaoze Pei Department of Electronics&Electrical Engineering University of BathBathBA27AYUnited Kingdom Airbus UpNext BlangnacFrance Airbus CRT BlangnacFrance Department of Mechanical Engineering University of BathBathBA27AYUnited Kingdom

Hydrogen-powered electric aircraft have attracted significant interests aiming to achieve decarbonization *** DC electric networks are facing great challenges in DC fault protection *** interrupters are widely used in low voltage and medium voltage power systems due to being environmentally friendly with low *** this paper a moving coil actuator with compensation coils for a vacuum interrupter,as part of a hybrid direct current circuit breaker,is designed and experimentally *** coils are used to improve operating speed compared with original moving coil *** between four possible connections of compensation coils and original moving coil actuator are carried *** results show comparisons between different connections of actuator coils in terms of opening time and coil current with a range of pre-charged capacitor *** performance of each actuator connection is also *** actuator with compensation coils is shown to have a higher current rising rate and achieve faster opening speed,which is a critical requirement for electric aircraft network *** parallel connection actuator achieves the highest opening speed within 3.5 ms with capacitor voltage of 50 V.

关键词： Circuit breaker compensation coil moving coil actuator vacuum interrupter

Development of Localized Assessment of Municipal Wastewater Disposal Risks

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Water Resource and Protection 2024年第6期16卷 395-413页

作者： frederick Bloetscher Daniel E. Meeroff Brittanney Adelmann Department of Civil Environmental and Geomatics Engineering Florida Atlantic University Boca Raton USA Department of Mathematics Florida Atlantic University Boca Raton USA

A means to develop a comparative assessment of the risks of available wastewater effluent disposal options on a local scale needs to be developed to help local decision-makers make decisions on options such as direct or indirect potable reuse options. These options have garnered more interest as a result of water supply limitations in many urban areas. This risk assessment was developed from a risk assessment developed at the University of Miami in 2001 and Florida Atlantic University (FAU) in 2023. Direct potable reuse and injection wells were deemed to have the lowest risk in the most recent study by FAU. However, the injection well option may not be available everywhere. As a result, a more local means to assess exposure risk is needed. This paper outlines the process to evaluate the public health risks associated with available disposal alternatives which may be very limited in some areas. The development of exposure pathways can help local decision-makers define the challenges, and support later expert level analysis upon which public health decisions are based.

关键词： Potable Reuse Wastewater Effluent Disposal Risk Risk Assessment

Buechel Pappas Resurfacing Shoulder Replacement: Evolution and over 40 Years of Clinical Experience

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Orthopedics 2024年第5期14卷 218-228页

作者： frederick F. Buechel Michael J. Pappas Rutgers NJ Medical School Newark NJ USA South Mountain Orthopaedic Associates South Orange NJ USA New Jersey Institute of Technology Newark NJ USA

Background: Early exploration of the semi constrained “Floating-Socket” total shoulder replacement (TSR) in 1974 led to a proliferation of various unconstrained designs that allowed resection or retention of the humeral head, depending upon the pathological process involved. Degenerative glenohumeral arthritis with mild to moderate involvement of subchondral bone allowed for a resurfacing option, while severe humeral head involvement required a partial or full humeral head replacement attached to an intramedullary stem for fixation. All components evolved from cemented to cementless application by 1982. The purpose of this paper is to describe the progression of Buechel-Pappas (B-P) shoulder replacement development from the early 1970’s in both cemented and cement less applications. Methods: Clinical evaluations of “Floating-Socket” TSR, followed by B-P stem-type, resurfacing types, bipolar-type and revision components, all of which comprise the B-P Shoulder Replacement System, were performed over a 49-year period. Results: “Floating-Socket” implants improved the results of simple, constrained ball-in-socket designs, but generally failed by glenoid component loosening in both chimpanzee and human applications. Unconstrained resurfacing-type components, both anatomical humeral head and full proximal humeral components, were quite successful, with minimal failures observed in long-term studies. Bipolar salvage implants, used for severe proximal deficiencies, revisions and massive rotator cuff arthropathy, were also very successful;providing overhead range of motion in many patients. Conclusions: Resurfacing hemiarthroplasty, in patients with intact or repairable rotator cuff mechanisms, gave the most satisfactory results and were the least technically complicated to perform, requiring minimal instrumentation. Resurfacing of full proximal humeral deficiencies, using femoral resurfacing components, gave similar clinical results to more complex semi-constrained devices,

关键词： Total Shoulder Replacement Resurfacing Shoulder Replacement

Estimating the subsolar magnetopause position from soft X-ray images using a low-pass image filter

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2024年第1期8卷 173-183页

作者： Hyangpyo Kim Hyunju K.Connor Jaewoong Jung Brian M.Walsh David Sibeck Kip D.Kuntz frederick S.Porter Catriana K.Paw U Rousseau A.Nutter Ramiz Qudsi Rumi Nakamura Michael Collier Space Research Institute Austrian Academy of Sciences8042 GrazAustria Geophysical Institute University of Alaska FairbanksFairbanksAlaska 99775USA National Aeronautics and Space Administration(NASA)Goddard Space Flight Center GreenbeltMaryland 20771USA Astronomy Department University of Maryland College ParkCollege ParkMaryland 20742USA Center for Space Physics Boston UniversityBostonMassachusetts 02215USA Department of Physics and Astronomy Johns Hopkins UniversityBaltimoreMaryland 21218USA Howard University WashingtonDC 20059USA

The Lunar Environment heliospheric X-ray Imager(LEXI)and Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)missions will image the Earth’s dayside magneto pause and cusps in soft X-rays after their respective launches in the near future,to specify glo bal magnetic reconnection modes for varying solar wind *** suppo rt the success of these scientific missions,it is critical to develop techniques that extract the magnetopause locations from the observed soft X-ray *** this research,we introduce a new geometric equation that calculates the subsolar magnetopause position(RS)from a satellite position,the look direction of the instrument,and the angle at which the X-ray emission is *** assumptions are used in this method:(1)The look direction where soft X-ray emissions are maximized lies tangent to the magnetopause,and(2)the magnetopause surface near the subsolar point is almost spherical and thus RSis nea rly equal to the radius of the magneto pause *** create synthetic soft X-ray images by using the Open Geospace General Circulation Model(OpenGGCM)global magnetohydrodynamic model,the galactic background,the instrument point spread function,and Poisson *** then apply the fast Fourier transform and Gaussian low-pass filte rs to the synthetic images to re move noise and obtain accurate look angles for the soft X-ray pea *** the filte red images,we calculate RS and its accuracy for different LEXI locations,look directions,and solar wind densities by using the OpenGGCM subsolar magnetopause location as ground *** method estimates RS with an accuracy of10 *** accuracy improves for greater solar wind densities and during southward interplanetary magnetic *** method ca ptures the magnetopause motion during southwa rd interplaneta ry magnetic field ***,the technique will enable quantitative analysis of the magnetopause motion and help reveal the daysi

关键词： soft X-ray magnetopause reconnection low-pass filter LEXI SMILE

Correlates of Mistimed Pregnancy and Unmet Need for Family Planning among Women of Reproductive Age in Sandema, Ghana

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Advances in Reproductive Sciences 2024年第2期12卷 125-140页

作者： Elvis Junior Dun-Dery Elijah Yendaw frederick Dun-Dery Lawrence Bagrmwin Menaal Kaushal Department of Population and Health Research Research Web Africa Sunyani Ghana Department of Governance and Development Management Faculty of Planning and Land Management Simon Diedong Dombo University of Business and Integrated Development Studies Wa Ghana University of Calgary 2500 University Drive NW Calgary Alberta Canada Lambussie Polyclinic Ghana Health Service Lambusie Upper West Region Ghana Department of Public Health Lekma Hospital Ghana Health Service Accra Ghana

Background: Globally, an estimated 80 million unintended pregnancies comprising both mistimed and unwanted pregnancies are recorded yearly. Yet only half of the women at risk of mistimed pregnancy use contraceptives. In developing countries, over 100 million females have unmet need, and national surveys in Ghana indicate 23% unmet need rate. Methods: Using a cross-sectional community-based approach, a sample size of 300 women of reproductive age were selected using multi-step cluster sampling techniques. The study was quantitative, using structured interviewer-administered questionnaires. Results: Two-third (66%) of the women in reproductive age still had unmet need, 71% were currently pregnant, and more than a third (36%) confirmed ever having a mistimed pregnancy. Fifty-three percent (53%) of the women confirmed never communicating with their partners on family planning issues, a little below half (45%) took their own health care decisions. Seventy nine percent (79%) ever received family planning services from a health professional. Factors related to unmet needs included mistimed pregnancy, level of education, preferred birth/pregnancy interval, communication between partners and the autonomy to spend self-earnings. Conclusion: Considering that high rates of unmet need results in mistimed pregnancy, improved policies around the influence of unmet need on mistimed pregnancies are needed.

关键词： Contraception Family Planning Mistimed Pregnancy Ghana Unintended Pregnancy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

我国古籍整理成果法律保护研究进展与展望

图书情报研究 2024年第2期17卷 106-116页

作者：董洪玲李永卉卢章平 Abankwa frederick 江苏大学法学院镇江212013 江苏大学科技信息研究所镇江212013 伯明翰城市大学工程系英国伯明翰B55JU

[目的/意义]古籍整理与出版是古籍保护的重要内容和方法之一,目前学界对古籍整理成果的法律保护还存在争议。[方法/过程]通过可视化分析软件CiteSpace对2000-2022年CNKI数据库中收录的我国古籍整理成果法律保护相关的130篇核心期刊论文... 详细信息

[目的/意义]古籍整理与出版是古籍保护的重要内容和方法之一,目前学界对古籍整理成果的法律保护还存在争议。[方法/过程]通过可视化分析软件CiteSpace对2000-2022年CNKI数据库中收录的我国古籍整理成果法律保护相关的130篇核心期刊论文进行统计分析,从发文数量、研究机构、核心作者、研究热点与前沿等方面,对近二十年我国古籍整理的法律保护研究成果进行梳理和总结。[结果/结论]结果表明:我国古籍整理成果法律保护研究的发文量呈波浪式增长趋势;高产机构主要由国家图书馆、天津师范大学古籍保护研究院构成,高校图书馆是研究的主要力量,但机构间合作不密切;核心作者共现网络密度低,合作程度有待提高;研究态势主要趋向于多学科交叉融合发展。在我国司法实践中,大多数法院认可古籍整理成果的独创性,符合著作权中作品的构成要件,少数法官则偏向于从民事权益的角度对其进行保护。而古籍整理成果的独创性在理论界成为争议焦点,部分学者提出了反不正当竞争法保护模式,但邻接权保护已渐成主流。从立法、司法、行政介入、合作研究四个方面,对完善我国古籍整理成果法律保护提出建议:加快古籍整理成果保护立法;完善司法实践中古籍整理成果的法律保护体系;利用行政手段加强古籍整理行业的监管力度;加强古籍整理成果保护研究机构的合作。

关键词：古籍整理成果著作权古籍保护邻接权