bluuebunny/crossref_metadata_2025_split huggingface dataset:
Robust conductive nanocomposite hydrogels with an interpenetrating network based on polyaniline for flexible supercapacitors
Authors: Du Juan , Zhu Wenli , She Xiaohong , Yang Qiaoling , Lu Yue , Zhang Chao , He Yuxuan , Tian Hongli , Tsou Chihui 
Published: November 2023

AbstractConductive polyacrylic acid/polyaniline/SiO2 (PAA/PANI/SiO2) nanocomposite hydrogels as electrolytes for a high‐performance flexible supercapacitor were prepared by combining in situ radical polymerization of anionic monomer acrylic acid, in situ sol–gel reaction of vinyltriethoxysilane (VTES), and oxidative polymerization of conductive monomer aniline (ANI). In the nanocomposite hydrogel, vinyl‐SiO2 nanoparticles served as analogous covalent crosslinkers, while the reversible noncovalent interactions (such as hydrogen bonds, electrostatic interactions, and chain entanglements) between the PAA/SiO2 and PANI networks acted as physical crosslinkers. The interconnected PANI and PAA/SiO2 networks thus constructed an interpenetrating three‐dimensional network that improved the movement of electrons and ions while also enhancing the mechanical properties of the hydrogel. At a volume ratio of ANI to VTES of 50:200, the compressive strength and conductivity of PAA/PANI/SiO2 hydrogels were as high as 1505 kPa and 4.42 S/m, respectively. Moreover, the flexible supercapacitors based on the nanocomposite hydrogel electrolyte exhibited high specific capacitance (574.7 F/g), energy density (19.6 Wh/kg), and power density (1.4 kW/kg) at a current density of 0.05 A/g. Meanwhile, these supercapacitors exhibit exceptional flexibility and mechanical stability, and can be repeatedly bent without degrading performance. This nanocomposite hydrogel has considerable potential for use in other flexible energy devices and electronics due to its excellent mechanical and electrochemical properties.Highlights
Conductive nanocomposite hydrogel have good conductivity and mechanical properties.
Conductive hydrogels are used as electrolytes for flexible supercapacitors.
Vinyl‐SiO2 served as analogous covalent crosslinkers for the hydrogel.
Noncovalent bonds between PAA/SiO2 and PANI acted as physical crosslinkers.
Interconnected PANI and PAA/SiO2 networks formed an interpenetrating network.
Dissecting genomic regions and underlying sheath blight resistance traits in rice (Oryza sativaL.) using a genome‐wide association study
Authors: Naveenkumar R , Anandan Annamalai , Prabhukarthikeyan Seenichamy Rathinam , Mahender Anumalla , Sangeetha Ganesan , Vaish Shyam Saran , Singh Pawan Kumar , Hussain Waseem , Ali Jauhar 
Published: November 2023

AbstractThe productivity of rice is greatly affected by the infection of the plant pathogenic fungusRhizoctonia solani, which causes a significant grain yield reduction globally. There exist a limited number of rice accessions that are available to develop sheath blight resistance (ShB). Our objective was to identify a good source of the ShB resistance, understand the heritability, and trait interactions, and identify the genomic regions for ShB resistance traits by genome‐wide association studies (GWAS). In the present study, a set of 330 traditional landraces and improved rice varieties were evaluated for ShB resistance and created a core panel of 192 accessions used in the GWAS. This panel provides a more considerable amount of genetic variance and found a significant phenotypic variation among the panel of rice accessions for all the agro‐morphological and disease‐resistance traits over the seasons. The infection rate of ShB and disease reaction were calculated as percent disease index (PDI) and area under the disease progress curve (AUDPC). The correlation analysis showed a significant positive association between PDIs and AUPDC and a negative association between PDI and plant height, flag leaf length, and grain yield. The panel was genotyped with 133 SSR microsatellite markers, resulting in a genome coverage of 314.83 Mb, and the average distance between markers is 2.53 Mb. By employing GLM and MLM (Q + K) models, 30 marker–trait associations (MTAs) were identified with targeted traits over the seasons. Among these QTLs, eight were found to be novel and located on 2, 4, 8, 10, and 12 chromosomes, which explained the phenotypic variation ranging from 5% to 15%. With the GWAS approach, six candidate genes were identified. Os05t0566400, Os08t0155900, and Os09t0567300 were found to be associated with defense mechanisms against ShB. These findings provided insights into the novel donors of IC283139, IC 277248, Sivappuchithirai Kar, and Bowalia. The promising genomic regions on 10 of 12 chromosomes associated with ShB would be useful in developing rice varieties with durable disease resistance.
The Refractive Index Sensing Performance of Au and Ag Nanoparticles Under Different Surrounding Environment
Authors: Li Meiying , Yang Kang 
Published: November 2023

AbstractBenefiting from the sensitive response to the change of surrounding environment, localized surface plasmon resonance sensors have wide applications for the detection of bio‐/chemical species. Traditionally, the sensitivity research of localized surface plasmon resonance sensors mainly focused on the morphologies and materials of sensor structures. Instead, the effect of environmental refractive index on sensitivity of a gold (Au) nanoparticle sensor is theoretically investigated in this work. The results show that when few free targets are adjacent to the sensor, a better sensing performance can be achieved as the refractive index increases from 1.00 to 1.10. However, when a target layer is closely covered on the Au nanoparticle, a 0.1 decrease in environmental refractive index can lead to a significant improvement in sensitivity. The similar results can be also obtained on a silver (Ag) nanoparticle. This work provides new understandings for advanced sensing applications of surface plasmon resonance sensors.
Structural, elastic, mechanical, electronic, and magnetic properties of In2NbX6 (X = Cl, Br) variant perovskites
Authors: Ali Basit , Saad H.‐E. M. Musa , Ali Malak Azmat , Alothman Asma A. , Mushab Mohammed , Wadood Fazal , Ali Jawad , Hussain Sajjad 
Published: November 2023

AbstractThis article is about the study of structural, elastic, mechanical, electronic, and magnetic properties of two variant perovskites In2NbX6 (X = Cl, Br) using density functional theory. To the best of our information all calculations were carried out for the first time. The results established the cubic state stability of the present compounds in the FM phase. The thermodynamic and perovskites phase stabilities are respectively confirmed from negative values of formation energies and tolerance factor. The calculated elastic constants C11, C12, and C44 confirmed the mechanical stability of In2NbX6 compounds. The mechanical properties confirmed ductile nature of In2NbCl6 and brittle nature of In2NbBr6. The electronic properties showed that these compounds were metallic in spin up state and semiconductor in spin down state. The magnetic moments were calculated as 1 μB for both the compounds majorly associated with the Nb atom. The spin dependent electrical conductivity was calculated via BoltzTrap code. Besides half metallic nature, high spin dependent electrical conductivities reveals that In2NbX6 variant perovskites compounds are suitable for spintronic applications.
Frozen 1‐RSB structure of the symmetric Ising perceptron
Authors: Perkins Will , Xu Changji 
Published: November 2023

AbstractWe prove, under an assumption on the critical points of a real‐valued function, that the symmetric Ising perceptron exhibits the ‘frozen 1‐RSB’ structure conjectured by Krauth and Mézard in the physics literature; that is, typical solutions of the model lie in clusters of vanishing entropy density. Moreover, we prove this in a very strong form conjectured by Huang, Wong, and Kabashima: a typical solution of the model is isolated with high probability and the Hamming distance to all other solutions is linear in the dimension. The frozen 1‐RSB scenario is part of a recent and intriguing explanation of the performance of learning algorithms by Baldassi, Ingrosso, Lucibello, Saglietti, and Zecchina. We prove this structural result by comparing the symmetric Ising perceptron model to a planted model and proving a comparison result between the two models. Our main technical tool towards this comparison is an inductive argument for the concentration of the logarithm of number of solutions in the model.
An econometric study of eco‐innovation, clean energy, and trade openness toward carbon neutrality and sustainable development in OECD countries
Authors: Obobisa Emma Serwaa 
Published: November 2023

AbstractInternational entities have highlighted the issue of climate change and global efforts toward becoming carbon neutral by 2050. Given the current emphasis on Agenda 2030 and the commitment to achieve net zero emissions, this study lures motivation from the United Nations sustainable development goals (SDGs) of access to affordable clean energy, innovation, sustainable economic growth, sustainable consumption, and production to avert climate change. To this end, this study assesses the role of eco‐innovation, clean energy, trade openness, human capital, and economic growth toward carbon neutrality and sustainable development in the Organization for Economic Cooperation and Development (OECD) countries. The study utilized regression models to analyze the relationship between the variables. The study findings show that eco‐innovation, clean energy utilization, and human capital have a negative impact on CO2 emissions. Trade openness and economic growth have a positive impact on CO2 emissions except that trade impact is insignificant. The results of the causality test show bidirectional causality between eco‐innovation, clean energy utilization, human capital, and CO2 emissions as well as a one‐way causality from trade openness and economic growth to CO2 emissions. Moreover, the impulse‐response and variance decomposition analysis results show that human capital and clean energy will be the key drivers contributing to the reduction of carbon emissions in the future while eco‐innovation, trade openness, and economic growth will steadily increase CO2 emissions. The study proposes expanded development and deployment of clean energy technologies to curtail CO2 emissions and achieve SDGs.
Measuring regions' vulnerability and adaptation to climate change in China: An application of hybrid assessment approach
Authors: Li Qin , Zhu Lei , Shi Xunpeng 
Published: November 2023

AbstractA timely and systematic assessment can provide valuable insights for decision‐making aimed at reducing vulnerability and enhancing adaptive capacity. This study assesses the vulnerability and adaptation of China's provinces to climate change by employing a combination of the criteria importance intercriteria correlation method and Grey relational analysis. We establish a comprehensive three‐level index system for evaluation, allowing us to prioritize various factors. Our findings reveal significant disparities in the levels of adaptation and vulnerability to climate change across various regions, Generally, regions with well‐developed economies exhibit greater resilience to the impacts of climate change. the ecological system emerges as a key determinant influencing provincial vulnerability to climate change. Moreover, our study underscores the pivotal role of energy system transition in facilitating adaptation to climate change. The findings suggest policy recommendations in areas of ecosystem protection, energy intensity, roadmap, and funding allocation.
Decolonization of MB Dye (C16H18CIN3S) under the Natural Light Using Pristine and Zn−Y Substituted CoFe2O4 as a Catalyst
Authors: Patil Pradip D. , Birajdar Chandrakant T. , Alwesabi Wedad A. , Panchariya Prakashram K. , Raut Anil V. , Jadhav Kamalakar M. , Kavade Ramdas B. 
Published: November 2023

AbstractCo2Fe2O4 NPs were made using the sol‐gel ignition technique employing citric acid (C6H8O7.6H2O) as a reducing agent to oxidizing agent with a ratio of 1 : 3. A thorough study of the effects of divalent Zn2+ and trivalent Y3+ ion on their structural, Infra‐red, morphological, magnetic, DC‐electrical, optical, and photocatalytic activity. All of the samples have crystallized to a cubic spinel structure with a single phase space group Fd3m, according to the analysis of the XRD pattern consisting of the intense reflections (220), (311) (222), (400), (422), (511), (440), (533), and (444). Transmission electron microscopy (TEM) suggested the particle size range of ~27 nm; and demonstrates the agglomerations on the tip of MNPs, which are ideal for increasing surface area, and infrared study verifies the spinel structure. With a decrease in the hysteresis loop for the Zn−Y ligand, the magnetic hysteresis loops demonstrate a ferrimagnetic character. With Zn−Y, magnetic characteristics are noticeably affected; saturation magnetization (Ms) 70.9133 to 59.2148 emu/g; and coercivity (Hc) 1900.30 to 193.96 Oe both exhibit a decrease. The DC‐electrical resistivity image reveals the CFMNPs′ semiconducting nature and the optical energy bandgap demonstrates a decrease from their original state. The MB dye's decolorization demonstrates the amazing deterioration in a short amount of time 20 to 80 minutes range was observed to be 35.88, 61.92, 76.40, and 94.07 %.
Synthesis and Characterization of Carboxymethylated Locust Bean Gum‐co‐poly(SA)‐cl‐poly(MBA) pH Responsive Hydrogel for Controlled Drug Delivery of Metformin Hydrochloride
Authors: Tanwar Meenakshi , Rani Archna , Gupta Rajinder K. 
Published: November 2023

AbstractThe development of hydrophilic carriers with dual stimuli‐ responsiveness for the drug encapsulation and controlled release is one of the biggest challenges for the modern medicinal chemist. In this context, the current study explores the application of locust bean gum (LB), to develop a pH and temperature responsive matrix for controlled delivery of an anti‐diabetic drug, Metformin HCl (MFH) for the first time. LB gum was first structurally modified to carboxymethylated locust bean gum (CMLB). It was copolymerized with sodium acrylate (SA) and cross‐linked by using N,N‐methylene bisacrylamide (MBA) to form hydrogel (CMLB‐co‐poly(SA)‐cl‐poly(MBA)). The model hydrogel was examined using FTIR, TGA, SEM, XRD, and 13C‐NMR to determine structural changes, thermal behaviour and surface morphology. Network parameters confirm the porous nature of the hydrogel and support their swelling behaviour. The drug loaded CMLB‐co‐poly(SA)‐cl‐poly(MBA) hydrogel follows the non‐Fickian diffusion of the anti‐diabetic drug, Metformin HCl (MFH), which is having short and biological half life time. The MFH release profile was analysed by fitting data in the Korsmeyer‐Peppas kinetic model with high rate of release in pH 7.4 compared to Distilled Water (DW) and pH 2.2. Thus we can explore the bio‐compatible synthesized hydrogel as a carrier for sustained drug delivery.
CuS Morphology Control for Enhanced Catalytic Performance in A3 Coupling Reaction
Authors: Cao Sainan , Pan Yongqi , Feng Huangdi , Yang Jingxia 
Published: November 2023

AbstractA3 coupling reaction can be used to efficiently synthesize propargylamine, which is an important bioactive molecule intermediate, and copper sulfide (CuS) as its catalyst is rarely reported. Herein, CuS with different morphologies including nanoflowers (NFS), nanorods (NR), nanoparticles (NP) were synthesized and applied to the A3 coupling reaction. The results show that CuS NP has the highest catalytic activity (99 % conversion) compared to other CuS, and also has good group compatibility and recyclability. Combining the activity with the CuS surface structure checked by XPS, BET and HRTEM etc., the excellent catalytic performance of CuS NP can be attributed to its higher specific surface area ((SBET=26.9 m2/g, SLangmuir=144.2 m2/g), and higher Cu+/Cu0 (58.9 %), Sn2− (16.7 %). The large specific surface area can provide more active sites, and higher Cu+/Cu0, Sn2− content are conducive to promoting the activation of alkyne terminal C−H, which is an important step in the A3 coupling reaction.
Rationally Construction of Mn‐Doped RuO2 Nanofibers for High‐Activity and Stable Alkaline Ampere‐Level Current Density Overall Water Splitting
Authors: Li Weimo , Liu Ran , Yu Guangtao , Chen Xiaojie , Yan Su , Ren Siyu , Chen Junjie , Chen Wei , Wang Ce , Lu Xiaofeng 
Published: November 2023

AbstractNowadays, highly active and stable alkaline bifunctional electrocatalysts toward water electrolysis that can work at high current density (≥1000 mA cm−2) are urgently needed. Herein, Mn‐doped RuO2 (MnxRu1‐xO2) nanofibers (NFs) are constructed to achieve this object, presenting wonderful hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performances with the overpotentials of only 269 and 461 mV at 1 A cm−2 in 1 m KOH solution, and remarkably stability under industrial demand with 1 A cm−2, significantly better than the benchmark Pt/C and commercial RuO2 electrocatalysts, respectively. More importantly, the assembled Mn0.05Ru0.95O2 NFs||Mn0.05Ru0.95O2 NFs electrolyzer toward overall water splitting reaches the current density of 10 mA cm−2 with a cell voltage of 1.52 V and also delivers an outstanding stability over 150 h of continuous operation, far surpassing commercial Pt/C||commercial RuO2, RuO2 NFs||RuO2 NFs and most previously reported exceptional electrolyzers. Theoretical calculations indicate that Mn‐doping into RuO2 can significantly optimize the electronic structure and weaken the strength of O─H bond to achieve the near‐zero hydrogen adsorption free energy (ΔGH*) value for HER, and can also effectively weaken the adsorption strength of intermediate O* at the relevant sites, achieving the higher OER catalytic activity, since the overlapping center of p‐d orbitals is closer to the Fermi level.
Durable Roller‐Based Swing‐Structured Triboelectric Nanogenerator for Water Wave Energy Harvesting
Authors: Xu Zhiqiang , Chen Litu , Zhang Zheng , Han Jiajia , Chen Pengfei , Hong Zhanyong , Jiang Tao , Wang Zhong Lin 
Published: November 2023

AbstractOcean energy is a kind of clean and renewable energy source, but it cannot be efficiently harvested by traditional electromagnetic generators, due to its low‐frequency characteristic. The emergence of triboelectric nanogenerators provides a more promising technology for collecting ocean energy. In this work, a durable roller‐based swing‐structured triboelectric nanogenerator (RS‐TENG) is designed and fabricated for low‐frequency water wave energy harvesting. The rolling structure reduces the wear between triboelectric materials and improves the device's durability. After a continuous operation of 1 260 000 cycles, the attenuation of the electrical outputs of the RS‐TENG is below 1.6%, exhibiting excellent durability. At the same time, the output current can arrive at 53.2 µA. Under the triggering of water waves, the RS‐TENG can generate an output power of 4.27 mW, corresponding to a power density of 1.16 W m−3. After the arraying, the output performance can be doubled, so that the TENG can successfully power an environmental monitoring sensor and ensure long‐term stable operation of the sensor. This work provides an effective strategy for improving the device durability, which benefits the practical applications of the TENGs in large‐scale blue energy harvesting.
Zinc Aluminum Oxide Encapsulation Layers for Perovskite Solar Cells Deposited Using Spatial Atomic Layer Deposition
Authors: Asgarimoghaddam Hatameh , Chen Qiaoyun , Ye Fan , Shahin Ahmed , Song Bo , Musselman Kevin P. 
Published: November 2023

AbstractAn atmospheric‐pressure spatial atomic layer deposition system is used to rapidly deposit 60 nm zinc–aluminum oxide (Zn–AlOx) thin‐film‐encapsulation layers directly on perovskite solar cells at 130 °C without damaging the temperature‐sensitive perovskite and organic materials. Varying the Zn/Al ratio has a significant impact on the structural properties of the films and their moisture barrier performance. The Zn–AlOx films have higher refractive indexes, lower concentrations of OH─ groups, and lower water–vapor transmission rates (WVTR) than AlOx films without zinc. However, as the Zn/Al ratio increases beyond 0.21, excess Zn atoms segregate, leading to an increase in the number of available hydroxyl groups on the surface of the deposited film and a slight increase in the WVTR. The stability of the p–i–n formamidinium methylammonium lead iodide solar cells under standard ISOS‐D‐3 testing conditions (65 °C and 85% relative humidity) is significantly enhanced by the thin encapsulation layers. The layers with a Zn/Al ratio of 0.21 result in a seven‐fold increase the time required for the cells to degrade to 80% of their original efficiency.
Cost‐benefit assessment framework for robotics‐driven inspection of floating offshore wind farms
Authors: Khalid Omer , Hao Guangbo , MacDonald Hamish , Cooperman Aubryn , Devoy McAuliffe Fiona , Desmond Cian 
Published: November 2023

AbstractOperations and maintenance (O&M) of floating offshore wind farms (FOWFs) poses various challenges in terms of greater distances from the shore, harsher weather conditions, and restricted mobility options. Robotic systems have the potential to automate some parts of the O&M leading to continuous feature‐rich data acquisition, operational efficiency, along with health and safety improvements. There remains a gap in assessing the techno‐economic feasibility of robotics in the FOWF sector. This paper investigates the costs and benefits of incorporating robotics into the O&M of a FOWF. A bottom‐up cost model is used to estimate the costs for a proposed multi‐robot platform (MRP). The MRP houses unmanned aerial vehicle (UAV) and remotely operated vehicle (ROV) to conduct the inspection of specific FOWF components. Emphasis is laid on the most conducive O&M activities for robotization and the associated technical and cost aspects. The simulation is conducted in Windfarm Operations and Maintenance cost‐Benefit Analysis Tool (WOMBAT), where the metrics of incurred operational expenditure (OPEX) and the inspection time are calculated and compared with those of a baseline case consisting of crew transfer vessels, rope‐access technicians, and divers. Results show that the MRP can reduce the inspection time incurred, but this reduction has dependency on the efficacy of the robotic system and the associated parameterization e.g., cost elements and the inspection rates. Conversely, the increased MRP day rate results in a higher annualized OPEX. Residual risk is calculated to assess the net benefit of incorporating the MRP. Furthermore, sensitivity analysis is conducted to find the key parameters influencing the OPEX and the inspection time variation. A key output of this work is a robust and realistic framework which can be used for the cost‐benefit assessment of future MRP systems for specific FOWF activities.