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

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 UniversityAnam-ro 145Seongbuk-guSeoulRepublic of Korea Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India Yashwantrao Chavan school of Rural Development Shivaji UniversityKolhapur 416004India

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： Machine learning Ternary organic solarcells PM6 donor PCE

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Biopolymer Decorated Pencil Graphite Electrode for the In-situ Quantification of L-Tryptophan in Dietary supplements

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Journal of Analysis and Testing 2025年第01期 82-95页

作者： v.Devika P.J.sreelekshmi B.vedhanarayanan sandhya sadanandan R.Rejithamol Department of Chemistry Amrita Vishwa Vidyapeetham Graduate school of science Chiba University Department of Chemistry School of Advanced SciencesVIT-AP University

A simplistic and novel electrochemical sensor for selectively detecting the essential amino acid tryptophan in dietary supplements was fabricated on a pencil graphite electrode modified with a tryptophan-based dipeptide. The dipeptide was synthesized using common synthetic strategy for amino acid couplings. The modified electrode was characterized by scanning electron microscopy, impedance spectroscopy, cyclic voltammetry, and infrared spectroscopy. Differential pulse voltammetry was used to study the electrochemical response of the fabricated electrode to tryptophan in dietary supplements. Under the optimized experimental conditions, a distinct oxidation peak at + 0.671 v corresponding to tryptophan was noticed in differential pulse voltammetry, which indicated the detection of tryptophan by the fabricated electrode. The oxidation peak current for tryptophan was found to be linear within a concentration range of 10–350 μM with a lower detection limit of 1.2 μM, and the sensitivity of the fabricated electrode was 6.9 μA/μM/cm 2. Excellent selectivity, permissible reproducibility, and good stability of the sensor make it undoubtedly suitable for determining tryptophan in dietary supplements.

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Exercise preconditioning alleviates ischemia-induced memory deficits by increasing circulating adiponectin

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Neural Regeneration Research 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui Zhang sonata s Y Yau Kwok-Fai so Li Zhang Haining Ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of CNs Regeneration(Ministry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina state Key Laboratory of Brain and Cognitive science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Center for Exercise and Brain science School of PsychologyShanghai University of SportShanghaiChina Neuroscience and Neurorehabilitation Institute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

Cerebral ischemia is a major health risk that requires preventive approaches in addition to drug *** exercise enhances neurogenesis and synaptogenesis,and has been widely used for functional rehabilitation after *** this study,we determined whether exercise training before disease onset can alleviate the severity of cerebral *** also examined the role of exercise-induced circulating factors in these *** mice were subjected to 14 days of treadmill exercise training before surgery for middle cerebral artery *** found that this exercise pre-conditioning strategy effectively attenuated brain infarct area,inhibited gliogenesis,protected synaptic proteins,and improved novel object and spatial memory *** analysis showed that circulating adiponectin plays a critical role in these preventive effects of *** activation of adiponectin receptors by Adipo Ron mimicked the effects of exercise,while inhibiting receptor activation abolished the exercise *** summary,our results suggest a crucial role of circulating adiponectin in the effects of exercise pre-conditioning in protecting against cerebral ischemia and supporting the health benefits of exercise.

关键词： adiponectin cerebral ischemia exercise pre-conditioning hippocampus memory function middle cerebral artery occlusion prefrontal cortex synaptic proteins treadmill exercise

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Characteristics of Energy Fluxes and Cold Frontal Effects on Energy Exchange over a Boreal Lake

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Advances in Atmospheric sciences 2025年第2期42卷 357-372页

作者： Lujun XU Huizhi LIU Ivan MAMMARELLA Aki vÄHÄ Joonatan ALA-KÖNNI Xuefei LI Qun DU Yang LIU Timo vEsALA state Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of sciences Beijing 100864China Department of Atmospheric sciences Yunnan UniversityKunming 650091China Institute for Atmospheric and Earth system Research/Physics Faculty of ScienceUniversity of HelsinkiHelsinki 00014Finland

Understanding the characteristics and variations of heat exchange and evaporation of lakes is important for regional water resource management and sustainable *** on eddy covariance measurements over Lake vanajavesi in southern Finland,characteristics of energy fluxes and cold frontal effects on energy exchange were *** lake acted as a heat sink in spring and summer and a heat source in *** latent heat flux reached its minimum value in the morning and peaked in the *** diurnal variation of sensible heat flux was opposite to that of latent heat *** factors for the sensible heat flux were mainly the lake-air temperature difference and the product of lake-air temperature difference and wind *** latent heat flux was mainly affected by the vapor pressure deficit and the product of vapor pressure deficit and wind *** annual mean values of bulk transfer coefficients for momentum,heat,and water vapor were 1.98×10^(-3),1.62×10^(-3),and 1.31×10^(-3),*** transfer coefficients for heat and water vapor were not equal,indicating that the parameterization of energy exchange in numerical models,where the assumption that the heat coefficient equals the water vapor coefficient needs *** the ice-free season,cold fronts resulted in 28 sensible heat pulses and 17 latent heat pulses,contributing to 50.59%and 34.89%of sensible and latent heat exchange in Lake *** results indicate that cold fronts significantly impact the surface energy budget and evaporation over lakes.

关键词： sensible heat flux latent heat flux roughness length bulk transfer coefficient cold front

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Real-world cost-effectiveness of targeted temperature management in out-of-hospital cardiac arrest survivors: results from an academic medical center

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World Journal of Emergency Medicine 2025年第1期16卷 28-34页

作者： Wachira Wongtanasarasin Daniel K.Nishijima Wanrudee Isaranuwatchai Jeff rey s.Hoch Department of Emergency Medicine Faculty of MedicineChiang Mai UniversityChiang Mai 50200Thailand Department of Emergency Medicine University of California Davis School of MedicineSacramento 95817USA Health Intervention and Technology Assessment Program Ministry of Public HealthBangkok 11000Thailand Institute of Health Policy Management and EvaluationUniversity of TorontoToronto M5T 3M6Canada Division of Health Policy and Management Department of Public Health SciencesUniversity of California Davis School of MedicineSacramento 95817USA Center for Healthcare Policy and Research University of California Davis School of MedicineSacramento 95817USA

BACKGROUND: Targeted temperature management(TTM) is a common therapeutic intervention, yet its cost-effectiveness remains uncertain. This study aimed to evaluate the real-world cost-effectiveness of TTM compared with that of conventional care in adult out-of-hospital cardiac arrest(OHCA) survivors using clinical patient-level ***: We conducted a retrospective cohort study at an academic medical center in the UsA to assess the cost-effectiveness of TTM in adult non-traumatic OHCA survivors between 1 January, 2019 and 30 June, 2023. The primary outcome was survival to hospital discharge. Incremental cost-effectiveness ratios(ICERs) were calculated and compared with various decision makers' willingness to pay. Cost-effectiveness acceptability curves were utilized to evaluate the economic attractiveness of TTM. Uncertainty about the incremental cost and effect was explored with a 95% confidence ***: Among 925 non-traumatic OHCA survivors, only 30(3%) received TTM. After adjusting for potential confounders, the TTM group did not demonstrate a significantly lower cost(delta cost-$5,141, 95% confidence interval [95% CI]: $-35,347 to $25,065, P=0.79) and higher survival to hospital discharge(delta effect 6%, 95% CI:-11% to 23%, P=0.41). Additionally, a 95% confidence ellipse indicated uncertainty reflected by evidence that the true value of the ICER could be in any of the quadrants of the cost-effectiveness ***: Although TTM did not demonstrate a clear survival benefit in this study, its potential cost-effectiveness warrants further investigation with larger sample sizes. These findings highlight the need for additional research to optimize TTM use in OHCA care and inform resource allocation decisions.

关键词： Out-of-hospital cardiac arrest Targeted temperature management Cost-effectiveness survival Real-world data

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An effective stress-based DsC model for predicting hydromechanical shear behavior of unsaturated collapsible soils subjected to initial shear stress

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Journal of Rock Mechanics and Geotechnical Engineering 2025年第1期17卷 539-555页

作者： saman soleymani Borujerdi s.Mohsen Haeri Amir Akbari Garakani Chandrakant sDesai Civil Engineering Department Sharif University of TechnologyTehranIran Power Industry structures Research Department Niroo Research InstituteTehranIran Department of Civil and Architectural Engineering and Mechanics University of ArizonaArizonaUSA

Evaluation of hydromechanical shear behavior of unsaturated soils is still a challenging issue. The time and cost needed for conducting precise experimental investigation on shear behavior of unsaturated soils have encouraged several investigators to develop analytical, empirical, or semi-empirical models for predicting the shear behavior of unsaturated soils. However, most of the previously proposed models are for specimens subjected to the isotropic state of stress, without considering the effect of initial shear stress. In this study, a hydromechanical constitutive model is proposed for unsaturated collapsible soils during shearing, with consideration of the effect of the initial shear stress. The model implements an effective stress-based disturbed state concept (DsC) to predict the stress-strain behavior of the soil. Accordingly, material/state variables were defined for both the start of the shearing stage and the critical state of the soil. A series of laboratory tests was performed using a fully automated unsaturated triaxial device to verify the proposed model. The experimental program included 23 suction-controlled unsaturated triaxial shear tests on reconstituted specimens of Gorgan clayey loess wetted to different levels of suctions under both isotropic and anisotropic stress states. The results show excellent agreement between the prediction by the proposed model and the experimental results.

关键词： Unsaturated collapsible soil Initial shear stress Hydromechanical shear behavior Effective stress Disturbed state concept Critical state

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A comprehensive review of phytochemical approaches in treatment of acute myeloid leukemia:Associated pathways and molecular mechanisms

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Chinese Herbal Medicines 2025年第1期17卷 41-55页

作者： Mouvanal sajana T.s.Gopenath Basalingappa M.Kanthesh Division of Molecular Biology School of Life SciencesJSS AHER Department of Biotechnology and Bioinformatics School of Life SciencesJSS AHER

Acute myeloid leukemia(AML) is a type of cancer that affects the blood and bone *** review conducts a thorough analysis of AML, addressing its genetic *** examination extends to the current therapeutic approaches employed for AML,shedding light on their efficacy and the notable side effects experienced by patients undergoing these treatments,leading to a low overall survival ***,exploring alternative treatments,such as phytochemicals,is ***,the review explores the complex landscape of phytochemicals,categorizing them based on their diverse properties,which include alkaloids,phenols,terpenoids,organo-sulfur compounds,and other compounds,including quinones,and elucidating their mechanisms of *** emphasis is placed on their involvement in critical signaling pathways,with a particular focus on how these phytochemicals impact AML when evaluated across a spectrum of cell *** in-depth exploration aims to uncover potential targets within the molecular landscape of AML where phytochemicals can exert their therapeutic *** review investigates the potential role of plant-derived phytochemicals as adjunctive therapies for *** exploration encompasses the identification of specific phytochemicals that exhibit promising anti-leukemic properties and evaluates their potential in clinical *** conventional treatments,the review explores the integration of complementary and alternative medicine as a holistic approach to managing *** examination encompasses the synergy between conventional therapies and alternative interventions,exploring how these combined strategies may enhance overall therapeutic outcomes and mitigate side *** a forward-looking perspective,the overarching goal is to contribute to the evolving landscape of AML treatment by considering innovative approaches that harness the therapeutic potential of phytochemicals,both independently and in conjunction with establishe

关键词： cell death complementary and alternative medicine leukemia phytochemicals signaling pathways therapeutic targets

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Mitigating Hotspot Problem Using Northern Goshawk Optimization Based Energy Aware Multi-Hop Communication for Wireless sensor Networks

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China Communications 2025年第2期22卷 283-298页

作者： s.Leones sherwin vimalraj J.Lydia Department of Electronics and Communication Engineering Panimalar Engineering CollegeChennai 600123India Department of Electrical and Electronics Engineering Easwari Engineering CollegeChennai 600089India

Wireless sensor Network(WsN)comprises a set of interconnected,compact,autonomous,and resource-constrained sensor nodes that are wirelessly linked to monitor and gather data from the physical *** are commonly used in various applications such as environmental monitoring,surveillance,healthcare,agriculture,and industrial *** the benefits of WsN,energy efficiency remains a challenging problem that needs to be *** and routing can be considered effective solutions to accomplish energy efficiency in *** studies have reported that metaheuristic algorithms can be applied to optimize cluster formation and routing *** study introduces a new Northern Goshawk Optimization with boosted coati optimization algorithm for cluster-based routing(NGOBCO-CBR)method for *** proposed NGOBCO-CBR method resolves the hot spot problem,uneven load balancing,and energy consumption in *** NGOBCO-CBR technique comprises two major processes such as NGO based clustering and BCO-based *** the initial phase,the NGObased clustering method is designed for cluster head(CH)selection and cluster construction using five input variables such as residual energy(RE),node proximity,load balancing,network average energy,and distance to Bs(DBs).Besides,the NGOBCO-CBR technique applies the BCO algorithm for the optimum selection of routes to *** experimental results of the NGOBCOCBR technique are studied under different scenarios,and the obtained results showcased the improved efficiency of the NGOBCO-CBR technique over recent approaches in terms of different measures.

关键词： clustering energy efficiency metaheuristics multihop communication network lifetime wireless sensor networks

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Improved strength and ductility of high alloy containing Al–12Zn–3Mg–2.5Cu alloy by combining non-isothermal step rolling and cold rolling

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International Journal of Minerals,Metallurgy and Materials 2017年第2期24卷 179-185页

作者： v.v.Ravikumar s.Kumaran Department of Metallurgical and Materials Engineering National Institute of TechnologyTamil Nadu 620015India

Al-12Zn-3Mg-2.5Cu alloy was prepared using a liquid metallurgy route under the optimized conditions. A sample cut from the ingot was rolled non-isothermally from 400℃ to 100℃ in 100℃ steps, with 15% reduction in thickness; it was then cold rolled isothermally at room temperature for 85% reduction. The cold-rolled alloys were characterized by electron microscopy, hardness test, and tensile test to elucidate their structural evolution and evaluate their mechanical behavior. In the results, the cast alloy consists of a-aluminum and various intermetallic compounds. These compounds are segregated along the grain boundaries, which makes the alloy difficult to roll at room tem- perature. The combined effect of non-isothermal step rolling and cold rolling results in the nano/microsized compounds distributed uniformly in the matrix. The hardness is substantially increased after rolling. This increase in hardness is attributed to the ultra-fine grain size, fine-scale intermetallic compounds, and structural defects （e.g., dislocations, stacking faults, and sub-grains）. The ultimate tensile strength of the rolled alloy is approximately 628 MPa with 7% ductility.

关键词： aluminum zinc magnesium copper alloys non-isothermal cold rolling mechanical properties intermetallic compounds struc-ture defects

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块系岩体准共振诱发弱夹层拉压损伤断裂研究

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岩石力学与工程学报 2025年第1期44卷 114-127页

作者：王凯兴徐伟刚潘一山薛佳琪 OPARIN v N KIRYAEvA T A 辽宁工程技术大学力学与工程学院辽宁阜新123000 俄罗斯科学院西伯利亚分院矿业研究所俄罗斯新西伯利亚630091

当外界扰动频率接近块系岩体的固有频率时,会出现准共振现象。这一现象导致岩块间的弱夹层应变急剧变化,从而加快弱夹层的动态损伤断裂。为了研究块系岩体准共振导致岩块间弱夹层的动态拉压损伤断裂规律,基于块系岩体模型,分析准共振状... 详细信息

当外界扰动频率接近块系岩体的固有频率时,会出现准共振现象。这一现象导致岩块间的弱夹层应变急剧变化,从而加快弱夹层的动态损伤断裂。为了研究块系岩体准共振导致岩块间弱夹层的动态拉压损伤断裂规律,基于块系岩体模型,分析准共振状态下弱夹层的变形特征。结合岩石动态损伤断裂准则,对准共振状态下弱夹层的动态损伤断裂进行理论计算分析,进而研究动态破坏规律。通过数值模拟揭示了准共振状态下块系岩体中弱夹层的损伤演化特征。结果表明:当块系岩体发生准共振现象时,岩块间的相对位移急剧增加,使得弱夹层的应变和损伤程度明显增大;弱夹层的损伤程度在准共振频率下最高,同时受外部扰动力和弱夹层的刚度、黏性、厚度及岩块质量等系统参数的影响;块系岩体发生准共振时断裂应力增大,但从断裂到完全破坏的时间明显缩短,即残余承载能力大幅下降。该研究对认识块系岩体的动态断裂具有一定的参考价值。

关键词：岩石力学块系岩体准共振弱夹层变形动态损伤断裂

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