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Machine learning empowers efficient design of ternary organic solar cells with PM6 donor

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Journal of Energy chemistry 2025年第1期100卷 337-347页

作者： Kiran A.Nirmal Tukaram d.dongale Santosh S.Sutar Atul c.Khot Tae Geun Kim School of Electrical Engineering Korea University computational Electronics and Nanoscience Research Laboratory School of Nanoscience and Biotechnology Shivaji University Yashwantrao chavan School of Rural development Shivaji University

Organic solar cells(OScs) hold great potential as a photovoltaic technology for practical ***, the traditional experimental trial-and-error method for designing and engineering OScs can be complex, expensive, and time-consuming. Machine learning(ML) techniques enable the proficient extraction of information from datasets, allowing the development of realistic models that are capable of predicting the efficacy of materials with commendable accuracy. The PM6 donor has great potential for high-performance OScs. However, it is crucial for the rational design of a ternary blend to accurately forecast the power conversion efficiency(PcE) of ternary OScs(TOScs) based on a PM6 ***, we collected the device parameters of PM6-based TOScs and evaluated the feature importance of their molecule descriptors to develop predictive models. in this study, we used five different ML algorithms for analysis and prediction. For the analysis, the classification and regression tree provided different rules, heuristics, and patterns from the heterogeneous dataset. The random forest algorithm outperforms other prediction ML algorithms in predicting the output performance of PM6-based TOScs. Finally, we validated the ML outcomes by fabricating PM6-based TOScs. Our study presents a rapid strategy for assessing a high PcE while elucidating the substantial influence of diverse descriptors.

关键词： Random forests

cOMPARiSON OF FATiGUE ANd cREEP BEHAViOR BETWEEN 2d ANd 3d-c/Sic cOMPOSiTES

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Acta Metallurgica Sinica(English Letters) 2004年第4期17卷 569-574页

作者： d.Han S.R.Qiao M.Li J.T.Hou x.J.Wu Ultra-high-temperature Thermostructural composites Laboratory Northwestern Polytechnical UniversityXi'an 710072 China

The differences of tension-tension fatigue and tensile creep characters of 2d-c/Sic and 3d-c/Sic composites have been scrutinized to meet the engineering needs. Experiments of tension-tension fatigue and tensile creep are carried out under vacuum high temperature condition. All of the high temperature fatigue curves are flat; the fatigue curves of the 2d-c/Sic are flatter and even parallel to the horizontal axis. While the tension-tension fatigue limit of the 3d-c/Sic is higher than that of the 2d-c/Sic, the fiber pullout length of the fatigue fracture surface of the 3d-c/Sic is longer than that of the 2d-c/Sic, and fracture morphology of the 3d-c/Sic is rougher, and pullout length of the fiber tows is longer. At the same time the 3d-c/Sic has higher tensile creep resistance. The tensile curve and the tensile creep curve of both materials consist of a series of flat step. These phenomena can be explained by the non-continuity of the damage.

关键词： 2d-c/Sic 3d-c/Sic vacuum high-temperature tensile creep fatigue

Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： desmond A.Nunez Ru c.Guo division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEdLiNE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SiRT1/P Gc-1α),SiRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

On the spray drying of uniform functional microparticles

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Particuology 2015年第5期13卷 1-12页

作者： W.Liu x.d.chen c.Selomulya department of chemical Engineering Monash University18 Alliance LaneClayton 3800VICAustralia department of Pharmaceutics School of Pharmaceutical SciencesCentral South University School of chemical and Environmental Engineering Soochow UniversitySuzhou Industrial Park

Spray drying is a typical method to produce particles in dry powder forms at industrial scale. Most spray-dried products often show a wide range of particle properties even within the same batch. At Monash University, we utilise a microfluidic spray drying approach to generate uniform microparticles with tightly controlled characteristics and sizes in a scalable, almost waste-flee process. The technique is useful to correlate the effects of formulation and spray drying conditions on the properties of spray-dried particles, and can be used to test new formulations for targeted applications such as encapsulation and release of active ingredients. The synthesis route can be applied to other self-assembling systems, includ- ing mesoporous, crystalline, and hierarchically structured microparticles. As spray drying is commonly used in commercial scales, the understanding of how functional particles are formed in relation to formulations and process conditions could assist in developing a cost effective, energy and material-efficient route to produce powders with better properties and ease of handling for more advanced applications such as selective adsorption and bio-separation.

关键词： Microfluidic spray drying Uniform microparticles Encapsulation controlled release

Micro-scaled plastic yielding and shear-banding dynamics in metallic glasses

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Journal of Materials Science & Technology 2023年第21期152卷 237-246页

作者： d.x.Han G.Wang Q.Wang R.Feng x.d.Ma K.c.chan c.T.Liu institute of Materials Shanghai UniversityShanghai 200444China department of industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong KongChina Neutron Scattering division Oak Ridge National LaboratoryOak RidgeTN 37831United States department of Material Science and Engineering College of Science and EngineeringCity University of Hong KongHong KongChina center for Advanced Structural Materials College of Science and EngineeringCity University of Hong KongHong KongChina

Shear-banding behavior in metallic glasses plays a key role in the operation of plastic deformation,which is associated with yield *** a micro-scale,the shear-banding behavior must be affected by many factors from the test machine and the ***,in this study,comprehensively considering a machine compliance,a geometry imperfection of micro-pillar,and a substrate sink-in the machine-sample-substrate system,we developed a plastic-strength model at a micrometer scale in this study,which is evidenced by the microscale compressive properties of 18 kinds of metallic *** the-oretical model provides a guidance for the elastic limits and shear-banding dynamics of metallic glasses at the micro-scale,which can be applicable to characterize the microscale deformation behavior of other amorphous materials.

关键词： Metallic glasses Shear-banding dynamics Micro-compression Plastic deformation

influence of a liquid-filled compartment structure on the incoming shaped charge jet stability

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defence Technology（防务技术） 2021年第2期17卷 571-582页

作者： x.d.Zu Z.x.Huang Z.W.Guan x.c.Yin Y.M.Zheng School of Mechanical Engineering Nanjing University of Science and TechnologyXiaolingwei 200Nanjing 210094China School of Engineering University of LiverpoolLiverpoolL693GQUK department of Mechanics and Engineering Science Nanjing University of Science and TechnologyNanjing 210094China

Liquid-filled compartment structure consists of a bulk steel plate with matrix blind holes which are filled with liquid and a steel front plate to seal up the liquid with rings and *** liquid-filled compartment structure can resist the shaped charge warhead *** paper presents experimental and theoretical investigations of the penetration ability of the residual shaped charge jet emerging from the liquid-filled compartment structure after the penetration process at different impact *** the basis of shock wave propagation theory,the influence of the liquid-filled compartment structure on jet stability is *** interferences of the liquid backflow caused by a reflected shock wave and a back plate on jet stability under different impact angles are also *** addition,the range of the disturbed velocity segments of the jet at different impact angles and the penetration ability of the residual jet are obtained.A theoretical model is validated against the experimental penetration depths.

关键词： compartment structure Shaped charge jet Shock wave disturbance Stability

Machine learning guided automatic recognition of crystal boundaries in bainitic/martensitic alloy and relationship between boundary types and ductile-to-brittle transition behavior

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Journal of Materials Science & Technology 2021年第25期84卷 49-58页

作者： x.c.Li J.x.Zhao J.H.cong R.d.K.Misra x.M.Wang x.L.Wang c.J.Shang collaborative innovation center of Steel Technology University of Science and Technology BeijingBeijing 100083China department of Metallurgical Materials and Biomedical EngineeringUniversity of Texas at El Paso500 W.University AvenueEl PasoTX 79968USA

Gradient boosting decision tree(GBdT)machine learning(ML)method was adopted for the first time to automatically recognize and conduct quantitative statistical analysis of boundaries in bainitic microstructure using electron back-scatter diffraction(EBSd)*** spite of lack of large sets of EBSd data,we were successful in achieving the desired accuracy and accomplishing the objective of recognizing the *** with a low model accuracy ofing Euler angles or axis-angle pair as characteristic features,the accuracy of the model was significantly enhanced to about 88%when the Euler angle was converted to overall misorientation angle(OMA)and specific misorientation angle(SMA)and considered as important *** this model,the recall score of prior austenite grain(PAG)boundary was~93%,high angle packet boundary(OMA>40°)was~97%,and block boundary was~96%.The derived outcomes of ML were used to obtain insights into the ductile-to-brittle transition(dBTT)***,ML modeling approach suggested that dBTT was not determined by the density of high angle grain boundaries,but significantly influenced by the density of PAG and packet *** study underscores that ML has a great potential in detailed recognition of complex multi-hierarchical microstructure such as bainite and martensite and relates to material performance.

关键词： Machine learning Feature engineering Automatic recognition Lath structure crystallography

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

VERiFicATiON ANd cOMPARiSON OF FORMULAS FOR BEd LOAd TRANSPORT

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Journal of Hydrodynamics 2001年第1期13卷 8-11页

作者： Wang, x.K. Li, d.x. Qu, Z.S. Wang, d.c. dep. of Hydraulic Eng. Tsinghua Univ. Beijing 100084 China

Several typical formulas for bed load transport are examined based on field data. it is concluded that the Einstein formula provides good estimates for the bed load transport rate while other ones predict much lower transport rates. The main reason for the under-prediction is that dp, the effective diameter of particles, is too large as a representative diameter of the bed material for gravel streams with partially movable bed. Performance of these formulas can be significantly improved if d35 is adopted instead of dp.

关键词： Loads (forces) Structural loads