Results 91 to 100 of about 9,176 (267)

Some new weakly singular integral inequalities and their applications to fractional differential equations

Journal of Inequalities and Applications, 2016
Some new inequalities with weakly singular integral kernel are developed, which generalize some known inequalities and can be used in the qualitative and quantitative analysis of the solutions to certain fractional differential equations.
Run Xu, Fanwei Meng
doaj   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Numerical Treatment of Abel’s Integral Equations Via Chelyshkov Wavelets Collocation Technique [PDF]

Computational Algorithms and Numerical Dimensions
This study presents a method to solve weakly singular Volterra integral equations using an approximation approach. The method relies on Chelyshkov wavelet polynomials. The characteristics of the Chelyshkov wavelet are presented.
Youssef Esmaiel, Magdi El-Azab, Galal El-Baghdady   +2 more
doaj   +1 more source

Water Adsorption‐Induced Color Sensor: Insight Into the Sensing Mechanism and Interfacial Engineering for Improved Responsiveness

Advanced Functional Materials, EarlyView.
We report a unique color‐sensing phenomenon of a TiO2/SbSI:Sb2S3 device utilizing X‐ray absorption. Based on the revealed penetration and adsorption of water onto TiO2, we successfully improved the color response speed and sensitivity by incorporating a hydrophilic polymer interlayer, thereby opening up opportunities for photodetection applications ...
Tai Kobayashi, Ryosuke Nishikubo, Yusuke Tomiyori, Fumitaka Ishiwari, Daisuke Asakura, Eiji Hosono, Miho Kitamura, Hisao Kiuchi, Yoshihisa Harada, Akinori Saeki   +9 more
wiley   +1 more source

Robust Interlayer Exciton Interplay in a Twisted van der Waals Heterotrilayer on a Broadband Bragg Reflector up to Room Temperature

Advanced Functional Materials, EarlyView.
In this work, we highlight a unique material platform capable of producing three distinct room temperature (RT) photoluminescence (PL) resonances from spatially separated regions composed of a heterobilayer (HBL), a homobilayer (HoBL), and an heterotrilayer (HTL) transition metal dichalcogenide (TMD) heterostructures configuration on a highly ...
Bhabani Sankar Sahoo, Shachi Machchhar, Avijit Barua, Martin Podhorský, Seth Ariel Tongay, Takashi Taniguchi, Kenji Watanabe, Chirag Chandrakant Palekar, Stephan Reitzenstein   +8 more
wiley   +1 more source

A Bioinspired Sensory‐CAPode With Dual Functionality: Logic Gate and Real‐Time Biosensing

Advanced Functional Materials, EarlyView.
An electrochemical capacitor diode (CAPode) redefines the frontier of iontronics by seamlessly unifying logic computing and biosensing within a single biocompatible platform. Inspired by nature's own ion‐channel circuitry, this elegant ionic system transforms complex chemical signals into precise electrical responses, paving the way for next‐generation
Hanfeng Zhou, Tianle Zheng, Haolin Jin, Xiongjun Zhou, Jiang Qu, Bilal Riaz, Ahmed Bahrawy, Jiajie Chen, Przemyslaw Galek, Julia Grothe, Stefan Kaskel   +10 more
wiley   +1 more source

Single‐Step Recovery of Water from Stable Crude Oil‐Water Emulsion Using Surface Engineered Hybrid Inorganic‐Polymer Membranes

Advanced Functional Materials, EarlyView.
Atomic layer deposition is used to conformally surface engineer polymeric membranes to fabricate inorganic–organic hybrid membranes. These membranes have exceptionally strong attraction toward water even in high oil containing emulsions, which leads to an extremely strong hydration layer at the interface.
Bratin Sengupta, Yining Liu, Gaurab Sarkar, Rouke Cai, Katrina Sparks, Chi Thang Nguyen, Tamar Segal‐Peretz, Seth B. Darling, Jeffrey W. Elam   +8 more
wiley   +1 more source

Interface Engineering via Sb2Te3 Deposition Enables High‐Performance SWCNT Film Thermoelectrics

Advanced Functional Materials, EarlyView.
SWCNTs are promising for flexible thermoelectrics but suffer from low performance. Here, cold‐pressed SWCNT films combined with deposited Sb2Te3 form engineered interfaces that enhance charge transport and energy filtering. The composite achieves a high power factor (25.82 µW cm−1 K−2) and delivers a power density of 3 mW cm−2 at ΔT = 40 K, with ...
Yuan‐Meng Liu, Xiao‐Lei Shi, Ziyu Wang, Muyang Huang, Meng Li, Xiaolong Sun, Yong Liu, Shanshan Zhou, Yi Zhao, Yineng Gou, Yue Hou, Zhi‐Gang Chen   +11 more
wiley   +1 more source

Weakly singular corners always scatter

, 2018
Assume that a bounded scatterer is embedded into an infinite homogeneous isotropic background medium in two dimensions. The refractive index function is supposed to be piecewise constant. If the scattering interface contains a weakly or strongly singular point, we prove that the scattered field cannot vanish identically.
Li, Long, Hu, Guanghui, Yang, Jiansheng
openaire   +2 more sources