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nZEB:bridging the gap between design forecast and actual performance data

能源与人工环境(英文) 2022年第1期3卷 16-29页

作者： N.Aste r.s.adhikari M.Buzzetti C.Del Pero H.E.Huerto-Cardenas F.Leonforte A.Miglioli Politecnico di Milano-Dept.of Architecture Built Environment and Construction EngineeringVia Ponzio 3120133 MilanoItaly

The nZEB objectives have raised the standard of building performance and changed the way in which buildings are designed and *** energy dynamic simulation tools are potentially the most suitable way for accurately evaluating and forecasting the thermal performance,they need several data inputs and user’s knowledge that can affect the reliability of the *** is precisely these two aspects that proved to be particularly critical,since the reliability of the ICT calculation tools has been widely proven in recent ***,in order to foster credibility in sustainable architecture,bridging the gap between predicted and measured performance is pivotal to boost the building market towards energy efficiency and provide reliable data to inhabitant,investors and policy *** present research aims to identify and quantify the main factors that affect the energy performance gap through a detailed energy analysis carried out on a case study,which can be considered one of the first nearly zero energy residential complex built in *** on the analysis,the study identifies the main causes of the deviation between the calculated and measured data and demonstrates how it is possible to achieve very reliable models and,therefore,real *** the procedure traces a classic model calibration scheme,actually it consists of a verification of possible downstream errors mainly due to human factors,such as the provision of incorrect technical data or inappropriate *** observations on the technical,management and regulatory gaps that may generate these errors are reported at the end of the study,together with practical suggestions that can provide effective solutions.

关键词： nZEB Energy performance gap Building energy dynamic simulation Post occupancy evaluation Model calibration GIGO

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Climate-change habitat shifts for the vulnerable endemic oak species(Quercus arkansana sarg.)

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Journal of Forestry research 2024年第1期35卷 117-127页

作者： suresh Chandra subedi seth Drake Binaya adhikari Mark V.Coggeshall Department of Biological sciences Arkansas Tech UniversityRussellvilleARUSA Department of Biology University of KentuckyLexingtonKYUSA school of Natural resources University of Missouri203 ABNR BuildingColumbiaMO 65211USA

Quercus arkansana(Arkansas oak)is at risk of becoming endangered,as the total known population size is represented by a few isolated *** potential impact of climate change on this species in the near future is high,yet knowledge of its predicted effects is *** study utilized the biomod2 r package to develop habi-tat suitability ensemble models based on bioclimatic and topographic environmental variables and the known loca-tions of current distribution of *** predicted suitable habitats across three climate change scenarios(ssP1-2.6,ssP2-4.5,and ssP5-8.5)for 2050,2070,and *** findings reveal that the current suitable habitat for *** is approximately 127,881 km^(2) across seven states(Texas,Arkansas,Alabama,Louisiana,Mississippi,Georgia,and Florida);approximately 9.5%is encompassed within state and federally managed protected *** models predict that all current suitable habitats will disap-pear by 2050 due to climate change,resulting in a northward shift into new regions such as Tennessee and *** large extent of suitable habitat outside protected areas sug-gests that a species-specific action plan incorporating pro-tected areas and other areas may be crucial for its ***,protection of *** habitat against climate change may require locally and regionally focused conservation policies,adaptive management strategies,and educational outreach among local people.

关键词： Biomod2 Climate change Conservation Habitat loss Habitat shift species distribution modeling Oak species

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Impacts of road on plant invasions in the Middle Mountain region of central Nepal

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Journal of Mountain science 2024年第2期21卷 619-632页

作者： Ananda adhikari Adarsha sUBEDI Achyut TIWArI Bharat Babu sHrEsTHA Central Department of Botany Tribhuvan UniversityKirtipur 44618Nepal

Biological invasion is triggered by human development activities such as the construction and expansion of road *** verges serve as important habitats and corridors for the distribution of invasive alien plant species(IAPs)between geographically distant ***,the trajectory of plant invasion and the data regarding the impact of roads on IAPs distribution are relatively poor in ***,we surveyed two road types(main roads and feeder road)in the Middle Mountain region of central Nepal in order to investigate how different road types are driving the dispersal of IAPs along road verges and the adjacent natural *** sampling was conducted at ca 2.5 km intervals along the *** each sampling site,paired plots(25 m×4 m)were sampled:one adjacent to and along the road,and another 20 m away and parallel to it in the interior *** results revealed that the main road verges had a higher cover(33%)and a larger number of IAPs(14 species)than the feeder road(25%;10 species).The IAPs cover and richness were significantly higher along verges than in the adjacent interior habitats for both road types,indicating that roads are contributing as corridors for the dispersal of IAPs in the Middle Mountain areas of central ***,elevation,tree canopy,and disturbances(grazing/mowing/trampling)were found to be the key factors that determine spatial distribution of IAPs along road *** emphasize that regular monitoring of vegetation along the road verges can help with the early detection and control of potential IAPs in the region before they become problematic.

关键词： Biological invasions Dispersal corridor Invasive alien plants Transport infrastructure Himalayan mountains

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Evaluation of hand infections in the emergency department using point-of-care ultrasound

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World Journal of Emergency Medicine 2024年第4期15卷 283-288页

作者： David Ahmad Haidar David Mintz Brandon M Wubben Omar rizvi srikar adhikari Department of Emergency Medicine Michigan MedicineAnn Arbor 48109-1382USA University of Arizona College of Medicine Tucson 85724USA Department of Emergency Medicine University of IowaIowa City 52242-1009USA Department of surgery University of Arizona College of MedicineTucson 85724USA Department of Emergency Medicine University of Arizona College of MedicineTucson 85724USA

BACKGrOUND:We aimed to evaluate the utility of point-of-care ultrasound(POCUs)in the assessment of hand infections that present to the emergency department(ED)and its impact on medical decision making and patient ***:We conducted a retrospective review of patients who presented to two urban academic EDs with clinical presentations concerning for skin and soft tissue infections(ssTI)of the hand between December 2015 and December *** trained POCUs fellowship physicians reviewed an ED POCUs database for POCUs examinations of the *** then reviewed patients’electronic health records(EHr)for demographic characteristics,history,physical examination findings,ED course,additional imaging studies,consultations,impact of POCUs on patient care and final ***:We included a total of 50 cases(28 male,22 female)in the final *** most common presenting symptoms and exam findings were pain(100%),swelling(90%),and erythema(74%).The most common sonographic findings were edema(76%),soft tissue swelling(78%),and fluid surrounding the tendon(57%).POCUs was used in medical decision making 68%of the time(n=34),with the use of POCUs leading to changes in management 38%of the time(n=19).POCUs use led to early antibiotic use(11/19),early consultation(10/19),and led to the performance of a required procedure(8/19).The POCUs diagnosis was consistent with the discharge diagnosis of flexor tenosynovitis 8/12 times,abscess 12/16 times,and cellulitis 14/20 ***:POCUs is beneficial for evaluating of hand infections that present to the ED and can be used as an important part of medical decision making to expedite patient care.

关键词： Ultrasound Point-of-care ultrasound Cellulitis Abscess Flexor tenosynovitis

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Defect mediated losses and degradation of perovskite solar cells:Origin impacts and reliable characterization techniques

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Journal of Energy Chemistry 2024年第7期94卷 217-253页

作者： Himangshu Baishy ramkrishna Das adhikari Mayur Jagdishbhai Patel Deepak Yadav Tapashi sarmah Mizanur Alam Manab Kalita Parameswar Krishnan lyer Centre for Nanotechnology Indian Institute of Technology GuwahatiGuwahati 781039AssamIndia Department of Chemistry Indian Institute ofTechnology GuwahatGuwahati739AssamIndi

The rapid advancement of halide-based hybrid perovskite materials has garnered significant research attention,particularly in the domain of photovoltaic *** to their exceptional optoelec-tronic properties,they demonstrated power conversion efficiency(PcE)of over 25%in single junction solar *** the notable progress in PCE over the past decade,the inherent high defect density pre-senting in perovskite materials gives rise to several loss mechanisms and associated ion migration in per-ovskite solar cells(PsCs)during operational *** factors collectively contribute to a significant stability challenge in PsCs,placing their longevity far behind for *** numerous reports have explored defects,ion migration,and their impacts on device performance,a com-prehensive correlation between the types of defects and the degradation kinetics of perovskite materials and PsCs has been *** this context,this review aims to provide a comprehensive overview of the origins of defects and ion migration,emphasizing their correlation with the degradation kinetics of per-ovskite materials and PsCs,leveraging reliable characterization ***,these charac-terization techniques are intended to comprehend loss mechanisms by different passivation approaches to enhance the durability and PCE of PsCs.

关键词： Perovskite solar cells Defects lon migration Degradation stability

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FEA-based Geometrical Modification of switched reluctance Motor for radial Force reduction

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Chinese Journal of Electrical Engineering 2024年第1期10卷 124-135页

作者： rani s Jayapragash r school of Electrical Engineering Vellore Institute of TechnologyChennai 600127India

switched reluctance motors(srMs)are becoming increasingly popular in the automotive sector owing to their robust ***,srMs are preferred particularly for EV applications owing to their fault tolerance,magnet-free structure,and high power/torque *** main concerns of srM compared to other machines include torque ripple and *** primary cause of vibration is the radial force created by the srM.A geometry-based modification of the srM to reduce the radial force without significantly changing the average torque produced is *** primary goal is to design a 4-phase,8/6 srM with a lower radial *** possible geometrical alterations are proposed:one with square windows and the other with circular holes on the rotor *** windows are sized and positioned to avoid flux *** criteria are developed for the optimal window size and *** element analysis(FEA)modelling of the srM is used to validate its *** FEA results are compared with the performance parameters obtained using the analytical *** the multiphysics design tool ANsYs to obtain the natural frequencies and associated deformations through modal *** to the conventional geometry,the radial force is significantly reduced by providing windows.

关键词： 8/6 srM radial force modal analysis FEA analysis natural frequencies srM with windows

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Modeling measles transmission in adults and children:Implications to vaccination for eradication

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Infectious Disease Modelling 2024年第4期9卷 1007-1026页

作者： Anjana Pokharel Khagendra adhikari ramesh Gautam Kedar Nath Uprety Naveen K.Vaidya Padma Kanya Multiple Campus Tribhuvan UniversityKathmanduNepal Mathematical Biology research Center KathmanduNepal Amrit Campus Tribhuvan UniversityKathmanduNepal ratna rajya Laxmi Campus Tribhuvan UniversityKathmanduNepal Central Department of Mathematics Tribhuvan UniversityKathmanduNepal Department of Mathematics and statistics San Diego State UniversitySan DiegoCAUSA Computational science research Center San Diego State UniversitySan DiegoCAUSA Viral Information Institute San Diego State UniversitySan DiegoCAUSA

Despite the availability of successful vaccines,measles outbreaks have occurred frequently in recent years,presumably due to the lack of proper vaccination ***,measles cases in adult groups,albeit small in number,indicate that the previously neglected adult group may need to be brought into vaccine coverage to achieve WHO's goal of measles eradication from the *** this study,we develop a novel transmission dynamics model to describe measles cases in adults and children to evaluate the role of adult infection in persistent measles cases and vaccination programs for *** of our model,validated by measles cases from outbreaks in Nepal,provides the vaccination reproduction number(conditions for measles eradication or persistence)and the role of contact network *** results highlight that while children are primary targets for measles outbreaks,a small number of infections in adults may act as a reservoir for measles,causing obstacles to ***,our model analysis shows that while impactful controls can be achieved by children-focused vaccines,a combined adult-child vaccination program may help assert eradication of the disease.

关键词： Measles eradication Measles reservoir Adult-child vaccination Adults and children groups Nepal

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Kinematic analysis of flexible bipedal robotic systems

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 795-818页

作者： r.FAZEL A.M.sHAFEI s.r.NEKOO Department of Mechanical Engineering Shahid Bahonar University of KermanKerman ***Iran Departamento de Ingenieria de sistemas y Automatica Escuela Técnica Superior de IngenieriaUniversidad de SevillaSeville 41092Spain

In spite of its intrinsic complexities,the passive gait of bipedal robots on a sloping ramp is a subject of interest for numerous *** distinguishes the present research from similar works is the consideration of flexibility in the constituent links of this type of robotic *** is not a far-fetched assumption because in the transient(impact)phase,due to the impulsive forces which are applied to the system,the likelihood of exciting the vibration modes increases ***,the human leg bones that are involved in walking are supported by viscoelastic muscles and ***,for achieving more exact results,it is essential to model the robot links with viscoelastic *** this end,the Gibbs-Appell formulation and Newton's kinematic impact law are used to derive the most general form of the system's dynamic equations in the swing and transient phases of *** most important issue in the passive walking motion of bipedal robots is the determination of the initial robot configuration with which the system could accomplish a periodic and stable gait solely under the effect of gravitational *** extremely unstable nature of the system studied in this paper and the vibrations caused by the impulsive forces induced by the impact of robot feet with the inclined surface are some of the very serious challenges encountered for achieving the above-mentioned *** overcome such challenges,an innovative method that uses a combination of the linearized equations of motion in the swing phase and the algebraic motion equations in the transition phase is presented in this paper to obtain an eigenvalue *** solving this problem,the suitable initial conditions that are necessary for the passive gait of this bipedal robot on a sloping surface are *** effects of the characteristic parameters of elastic links including the modulus of elasticity and the Kelvin-Voigt coefficient on the walking stability of this type of

关键词： bipedal robot flexible link swing phase transient phase eigenvalue problem Kelvin-Voigt coefficient

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Parametric investigation on the novel and cost-effective nano fly ash impregnated geopolymer system for sustainable construction

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Frontiers of structural and Civil Engineering 2024年第2期18卷 170-183页

作者： r.MOHANA s.M.Leela BHArATHI Department of Civil Engineering Mepco Schlenk Engineering CollegeSivakasi 626123India

The hazardous environmental effects of greenhouse gas emissions and climate change demand alternative sources for cementitious materials in the construction *** development of geopolymer structures provides a way of producing 100%cement-free *** this research work,a novel and simple way of deriving nano particles from waste fly ash particles is *** effect of adding the synthesized nano fly ash particles as a filler medium in geopolymer mortars was investigated by considering strength and durability *** optimization was done by using regression analysis on the geopolymer mortar and the impact of adding nano fly ash particles was studied by varying different percentages of addition ranging from 0 to 7.5%by weight of binder *** the results,it was observed that 1%nano fly ash acted not only as a filler but also as nano-sized precursors of the polymerization process,resulting in denser geopolymer *** can explain the extraordinary gain in strength of 72.11 MPa as well as the denser core with negligible level of chloride ion penetration,making the material suitable for the development of structures susceptible to marine environment.

关键词： geopolymer nano fly ash chloride ion penetration durability polymerization fillers

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An Efficient Modelling of Oversampling with Optimal Deep Learning Enabled Anomaly Detection in streaming Data

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China Communications 2024年第5期21卷 249-260页

作者： r.rajakumar s.sathiya Devi srinivasa ramanujan Centre SASTRA Deemed UniversityKumbakonamTamil Nadu 612001India University College of Engineering BIT CampusAnna UniversityTiruchirappalli 620024India

recently,anomaly detection(AD)in streaming data gained significant attention among research communities due to its applicability in finance,business,healthcare,education,*** recent developments of deep learning(DL)models find helpful in the detection and classification of *** article designs an oversampling with an optimal deep learning-based streaming data classification(Os-ODLsDC)*** aim of the OsODLsDC model is to recognize and classify the presence of anomalies in the streaming *** proposed Os-ODLsDC model initially undergoes preprocessing *** streaming data is unbalanced,support vector machine(sVM)-synthetic Minority Over-sampling Technique(sVM-sMOTE)is applied for oversampling ***,the Os-ODLsDC model employs bidirectional long short-term memory(Bi LsTM)for AD and ***,the root means square propagation(rMsProp)optimizer is applied for optimal hyperparameter tuning of the Bi LsTM *** ensuring the promising performance of the Os-ODLsDC model,a wide-ranging experimental analysis is performed using three benchmark datasets such as CICIDs 2018,KDD-Cup 1999,and NsL-KDD datasets.

关键词： anomaly detection deep learning hyperparameter optimization oversampling sMOTE streaming data

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