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Transactive control:a framework for operating power systems characterized by high penetration of distributed energy resources

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Journal of Modern Power Systems and Clean Energy 2017年第3期5卷 451-464页

作者： Junjie HU Guangya YANG koen KOK Yusheng XUE Henrik W.BINDNER Center for Electric Power and Energy Technical University of DenmarkCopenhagenDenmark Netherlands Organization for Applied Research TNOThe HagueThe Netherlands State Grid Electric Power Research Institute NanjingChina

The increasing number of distributed energy resources connected to power systems raises operational challenges for the network operator, such as introducing grid congestion and voltage deviations in the distribution network level, as well as increasing balancing needs at the whole system level. Control and coordination of a large number of distributed energy assets requires innovative approaches. Transactive control has received much attention due to its decentralized decision-making and transparent characteristics. This paper introduces the concept and main features of transactive control, followed by a literature review and demonstration projects that apply to transactive control. Cases are then presented to illustrate the transactive control framework. At the end, discussions and research directions are presented, for applying transactive control to operating power systems, characterized by a high penetration of distributed energy resources.

关键词： Distributed energy resources Distribution system operation Smart grids Transactive control

Impact of lipids and lipoproteins on hepatitis C virus infection and virus neutralization

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World Journal of Gastroenterology 2014年第43期20卷 15975-15991页

作者： koen Vercauteren Ahmed Atef Mesalam Geert Leroux-Roels Philip Meuleman Center for Vaccinology Ghent University Hospital Ghent University

Hepatitis C virus(HCV)infections represent a major global health ***-stage liver disease caused by chronic HCV infection is a major indication for liver ***,after transplantation the engrafted liver inevitably becomes infected by the circulating *** acting antivirals are not yet approved for use in liver transplant patients,and limited efficacy and severe side effects hamper the use of pegylated interferon combined with ribavirin in a post-transplant ***,alternative therapeutic options need to be *** entry represents an attractive target for such therapeutic *** the mechanisms of viral entry is essential to define the viral and cellular factors *** HCV life cycle is dependent of and associated with lipoprotein physiology and the presence of lipoproteins has been correlated with altered antiviral efficacy of entry *** thisreview,we summarise the current knowledge on how lipoprotein physiology influences the HCV life *** focus especially on the influence of lipoproteins on antibodies that target HCV envelope proteins or antibodies that target the cellular receptors of the *** information can be particularly relevant for the prevention of HCV re-infection after liver transplantation.

关键词： Hepatitis Lipids Neutralisation Antiviral therapy Animal models

The physical and physiological effects of vacuum massage on the different skin layers: a current status of the literature

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Burns & Trauma 2016年第3期4卷 180-191页

作者： Peter Moortgat Mieke Anthonissen Jill Meirte Ulrike Van Daele koen Maertens OSCARE Organisation for BurnsScar After-care and ResearchVan Roiestraat 18B-2170 AntwerpBelgium OSCARE Organisation for BurnsScar After-care and ResearchVan Roiestraat 18B-2170 AntwerpBelgium Department of Rehabilitation Sciences KU LeuvenTervuursevest 101box 15003001 HeverleeBelgium OSCARE Organisation for BurnsScar After-care and ResearchVan Roiestraat 18B-2170 AntwerpBelgium Department of Rehabilitation Sciences and Physiotherapy University of AntwerpUniversiteitsplein 12610 AntwerpBelgium Department of Rehabilitation Sciences and Physiotherapy University of AntwerpUniversiteitsplein 12610 AntwerpBelgium OSCARE Organisation for BurnsScar After-care and ResearchVan Roiestraat 18B-2170 AntwerpBelgium Department of Clinical and Lifespan Psychology Vrije Universiteit BrusselPleinlaan 21050 BrusselsBelgium

Vacuum massage is a non-invasive mechanical massage technique performed with a mechanical device that lifts the skin by means of suction,creates a skin fold and mobilises that skin *** the late 1970s,this therapy was introduced to treat traumatic or burn *** vacuum massage was invented to treat burns and scars,one can find very little literature on the effects of this ***,the aim of this review is to present an overview of the available literature on the physical and physiological effects of vacuum massage on epidermal and dermal skin structures in order to find the underlying working mechanisms that could benefit the healing of burns and *** discussion contains translational analysis of the results and provides recommendations for future research on the *** extended search for publications was performed using PubMed,Web of Science and Google *** authors independently identified and checked each study against the inclusion *** articles were included in the qualitative *** two most reported physical effects of vacuum massage were improvement of the tissue hardness and the elasticity of the *** physical effects,a variety of physiological effects are reported in literature,for example,an increased number of fibroblasts and collagen fibres accompanied by an alteration of fibroblast phenotype and collagen *** information was found on the decrease of pain and itch due to vacuum *** vacuum massage initially had been developed for the treatment of burn scars,this literature review found little evidence for the efficacy of this *** in duration,amplitude or frequency of the treatment have a substantial influence on collagen restructuring and reorientation,thus implying possible beneficial influences on the healing potential by mechanotransduction *** massage may release the mechanical tension associated with scar retraction and thus in

关键词： Vacuum massage Endermology Vacuotherapy Depressomassage Scars Hypertrophic Physical Physiological Intervention

Comparison of FDA safety and efficacy data for KAMRA and Raindrop corneal inlays

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International Journal of Ophthalmology(English edition) 2017年第9期10卷 1446-1451页

作者： Majid Moshirfar Jordan D Desautels Ryan T Wallace Nicholas koen Phillip C.Hoopes HDR Research Center Hoopes VisionDraperUtah 84020United States john A.Moran Eye Center Department of Ophthalmology and Visual SciencesUniversity of Utah School of MedicineSalt Lake CityUtah 84132United States Tufts University School of Medicine BostonMassachusetts 02111United States Brigham Young University ProvoUtah 84602United States Brown University Alpert School of Medicine ProvidenceRhode Island 02906United States

AIM：To provide a side-by-side analysis of the summary of safety and effectiveness data（SSED）submitted to the FDA for the KAMRA and Raindrop corneal inlays for the correction of ***：SSED reports submitted to the FDA for KAMRA and Raindrop were compared with respect to loss of corrected distance visual acuity（CDVA）,adverse event rates,induction of astigmatism,retention of contrast sensitivity,stability of manifest refractive spherical equivalent（MRSE）,and achieved monocular uncorrected near visual acuity（UNVA）at ***：Totally 442/508 of KAMRA patients and344/373 Raindrop patients remained enrolled in the clinical trials at *** proportion of KAMRA and Raindrop patients who lost≥2 lines of CDVA at 24mo was 3.4%and1%,*** adverse event rate was comparable between the *** significant inductions of astigmatism were *** technologies induced a transient myopic shift in MRSE followed by a hyperopic shift and subsequent *** 87%of KAMRA and 98%of Raindrop patients attained a monocular UNVA of J5（20/40）or better at 24mo,28%of KAMRA and 67%of Raindrop patients attained a monocular UNVA of J1（20/20）or better at ***：Both devices can be considered safe and effective,however,the results of corneal inlay implantation are mixed,and long-term patient satisfaction will likely depend on subjective expectations about the capabilities of the *** in surgical technique and postoperative care within and between the two clinical trials diminishes the comparative power of this article.

关键词： KAMRA Raindrop presbyopia comeal inlay

Annotated checklist and fisheries interactions of cetaceans in Togo, with evidence of Antarctic minke whale in the Gulf of Guinea

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Integrative Zoology 2014年第1期9卷 1-13页

作者： Gabriel H.SEGNIAGBETO koen VAN WAEREBEEK Joseph EBOWESSIDJAOU Koffivi KETOH Takouda KKPATCHA Kotchikpa OKOUMASSOU Kossi AHOEDO Department of Zoology and Animal Biology University of LoméLoméTogo Agbo-Zegué Togolese Society for Nature ConservationLoméTogo Conservation and Research of West African Aquatic Mammals(COREWAM) c/o Department of Marine and Fisheries SciencesUniversity of GhanaLegonGhana Peruvian Centre for Cetacean Research LimaPeru Department of Fauna and Hunting Ministry of Environment and Forest ResourcesLoméTogo Department of Fisheries and Aquaculture Ministry of AgricultureAnimal Breeding and FisheriesLoméTogo

Based on strandings and captures,9 cetacean species,including 6 odontocetes and 3 mysticetes,are document-ed(photos and specimens)in Togo’s coastal waters(newly-recorded species marked with an asterisk):Antarc-tic minke whale(Balaenoptera bonaerensis*),Bryde’s whale(Balaenoptera brydei or ***),humpback whale(Megaptera novaeangliae),sperm whale(Physeter macrocephalus),pygmy sperm whale(Kogia brevi-ceps*),short-finned pilot whale(Globicephala macrorhynchus*),pantropical spotted dolphin(Stenella attenu-ata*),common bottlenose dolphin(Tursiops truncatus)and common dolphin Delphinus *** anecdotal sight-ing record for killer whale(Orcinus orca)is considered *** lack of Sousa teuszii records in Togo is consistent with its apparent contemporaneous absence in *** *** specimen,entangled in a purse seine set on small pelagics,is a first record for the Gulf of *** occurrence of this Southern Ocean species north of the equator underscores the severe gaps in our understanding of cetacean distribution off west-ern *** majority of artisanal fishermen operating in Togolese coastal waters are of Ghanaian origin and are thought to promote trade and consumption of cetacean *** captures are illegal,enforced with some success in the main fishing centers,covert landings of cetaceans are exceedingly difficult to moni-tor,quantify or *** is expressed about pollution of Togo’s coastal waters with heavy metals due to phosphorite mining and export from the coastal basin near Hahotoéand Kpogamé.

关键词： bycatches capture cetacean bushmeat dolphin Gulf of Guinea stranding whale

Chemically modified STM tips for atomic-resolution imaging of ultrathin NaCI films

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Nano Research 2015年第7期8卷 2223-2230页

作者： Zhe Li koen Schouteden Violeta lancu Ewald Janssens Peter Lievens Chris Van Haesendonck Jorge I. Cerda Solid-State Physics and Magnetism Section KU Leuven BE-3001 Leuven Belgium Instituto de Ciencia de Materiales ICMM-CSIC Cantoblanco 28049 Madrid Spain

Cl-functionalized scanning tunneling microscopy （STM） tips are fabricated by modifying a tungsten STM tip in situ on islands of ultrathin NaCI（100） films on Au（111） surfaces. The functionalized tips are used to achieve clear atomic- resolution imaging of NaCI（100） islands. In comparison with bare metal tips, the chemically modified tips yield drastically enhanced spatial resolution as well as contrast reversal in STM topographs, implying that Na atoms, rather than C1 atoms, are imaged as protrusions. STM simulations based on a Green＇s function formalism reveal that the experimentally observed contrast reversal in the STM topographs is due to the highly localized character of the Cl-pz states at the tip apex. An additional remarkable characteristic of the modified tips is that in dI/dV maps, a Na atom appears as a ring with a diameter that depends crucially on the tip-sample distance.

关键词： scanning tunneling microscopy(STM)ultrathin insulating films functionalized stm-tip sm simulation

Water use efficiency in an arid watershed: a case study

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Research in Cold and Arid Regions 2013年第1期5卷 16-26页

作者： Damaris Orphanopoulos koen Verbist Alvaro Chavez Guido Soto Rodhos Consulting Vaticano 4026 B Santiago Chile UNESCO-International Hydrological Programme 1 Rue Miolis Paris France Centro del Agua para Zonas áridas y Semiáridas de América Latina y el Caribe (CAZALAC) Benavente 980 La Serena Chile

Integrated Water Resource Management （IWRM） becomes increasingly important in arid watersheds, where water resources are scarce and demands are rising under increased population pressure. In this case study, we present the results from the Elqui Valley in Chile, where water resources are shared between agriculture, mining operations, hydropower generation and drinking water for nearby cities. An IWRM model was applied to visualize water resources distribution in the catchment and determine irrigation and water use efficiencies. After calibration with observed surface and groundwater measurements, the model showed large differ- ences in efficiencies between different irrigation sectors. Most notably, irrigation sectors with the highest irrigation security, i.e., higher water rights per hectare, were characterized with lower water use efficiencies. Frequent water deficits were present in sec- tors downstream of the main reservoir, which was related to limited water rights per hectare, lower irrigation efficiencies and higher water demands due to larger agricultural areas. In subsequent scenario analyses, the model was used to evaluate the impact of improved irrigation and water use efficiencies in these downstream sectors, to confirm an important reduction in water deficits, except for drought years when surface water resources are insufficient. In a third scenario, groundwater resources were allowed to compensate for water deficits, effectively reducing these in most irrigation sectors, especially during droughts. Expansion of the current agricultural area by 37% was evaluated, as a future scenario, and was found to be unsustainable, as aquifer levels are low- ered to such levels that make annual recharge insufficient.

关键词： integrated water resources management drought arid zones Chile

Effect of introducing an online system on the follow-up of elbow arthroplasty

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World Journal of Orthopedics 2016年第12期7卷 826-831页

作者： Jetske Viveen Ante Prkic Bertram The koen LM koenraadt Denise Eygendaal Upper Limb Unit Department of Orthopaedic SurgeryAmphia Hospital Foundation for Orthopedic Research Care & EducationAmphia Hospital Department of Orthopaedic Surgery University of Amsterdam

AIM To evaluate the effect of introducing a structured online follow-up system on the response *** Since June 2015 we have set up an electronic followup system for prosthesis in orthopedic patients. This system allows prospective data gathering using both online and paper questionnaires. In the past all patients received questionnaires on paper. This study includes only patients who received elbow arthroplasty. Response rates before and after introduction of the online database were compared. After the implementation,completeness of the questionnaires was compared between paper and digital versions. For both comparisons Fisher's Exact tests were *** A total of 233 patients were included in the study. With the introduction of this online follow-up system,the overall response rate increased from 49.8% to 91.6%(P 0.05).Paper questionnaires had a completeness of 54.4%,which was lower compared to the online questionnaires where we reached full completeness(P < 0.01). Furthermore,non-responders proved to be younger with a mean age of 52 years compared to a mean age 62 years of responders(P < 0.05).CONCLUSION The use of a structured online follow-up system increased the response rate. Moreover,online questionnaires are more complete than paper questionnaires.

关键词： Patient reported outcome measures Elbow Follow-up Arthroplasty Online Database

Integrated design of transport infrastructure and public spaces considering human behavior:A review of state-of-the-art methods and tools

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Frontiers of Architectural Research 2019年第4期8卷 429-453页

作者： Liu Yang koen Hvan Dam Amab Majumdar Bani Anvari Washington YOchieng Lufeng Zhang Center of Architecture Research and Design University of Chinese Academy of Sciences100190BeijingChina Centre for Transport Studies Deptof Civil and Environmental EnQineerinqImperial Colleqe LondonLondonSW72AZUK Centre for Process Systems Engineering Deptof Chemical EngineerinsImperial College LondonLondonSW72AZUK Centre for Transport Studies Deptof CivilEnvironmental and Geomatic EngineeringUniversity College LondonWC1E 6BTUK

In order to achieve holistic urban plans incorporating transport infrastructure,public space and the behavior of people in these spaces,integration of urban design and computer modeling is a promising way to provide both qualitative and quantitative support to *** paper describes a systematic literature review following a four-part ***,to understand the relationship of elements of transport,spaces,and humans,w e review policy and urban design strategies for promoting positive ***,we present an overview of the integration methods and strategies used in urban design and policy ***,metrics and approaches for evaluating the effectiveness of integrated plan alternatives are ***,this paper gives a review of state-of-the-art tools with a focus on seven com puter simulation *** article explores mechanisms underlying the complex system of transport,spaces,and humans from a multidisciplinary perspective to provide an integrated toolkit for designers,planners,modelers and decision-m akers with the current methods and their challenges.

关键词： Transport infrastructure Public space Human behavior Integrated design Decision support Computer simulation