Results 51 to 60 of about 1,775,147 (351)

THz‐Driven Coherent Phonon Fingerprints of Hidden Symmetry Breaking in 2D Layered Hybrid Perovskites

Advanced Materials, EarlyView.
Intense THz pulses are employed to drive coherent phonons in 2D Ruddlesden‐Popper hybrid metal‐halide perovskites (HOIPs) from the (PEA)2(MA)n‐1PbnI3n+1 family, revealing mode‐selective spectroscopic signatures of inversion symmetry breaking in those nominally centrosymmetric materials. These findings provide a handle to decode nonlinear phonon driving
Joanna M. Urban, Michael S. Spencer, Maximilian Frenzel, Gaëlle Trippé‐Allard, Marie Cherasse, Charlotte Berrezueta‐Palacios, Prakriti P. Joshi, Alexander P. Fellows, Olga Minakova, Eduardo B. Barros, Luca Perfetti, Stephanie Reich, Martin Wolf, Emmanuelle Deleporte, Sebastian F. Maehrlein   +14 more
wiley   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Characteristics of Urban–Rural Integration at the County-Scale Interface: The Case of Linqu County, China

Land
Urban–rural integration (URI) has emerged as a crucial strategy to bridge urban and rural disparities and promote more sustained urbanisation paradigms in China and abroad.
Guiqing Yang, Liyao Wang, Huang Huang
doaj   +1 more source

رصد وتحليل توزيع استعمالات الأراضي أسفل الطرق العلوية (دراسة حالة القاهرة الكبرى) Monitoring and Analyzing the Land Use Distribution Under the Elevated Roads (Greater Cairo Case Study) [PDF]

Journal of Urban Research
طرحت الدولة في الأونة الأخيرة العديد من الأراضي أسفل الكباري؛ لاستغلالها في توطين الأنشطة الاقتصادية والمشروعات الصغيرة المتنوعة مثل (المطاعم، الكافيتريات، المحلات التجارية، مواقف السيارات والاتوبيسات، الحدائق، ...) خاصةً بالمناطق الحضرية الكبرى. كما نتج
Hend Mohamed Mostafa Al-Abbasy, Mohamed Ahmed Mohamed Osman   +1 more
doaj   +1 more source

Public Participation GIS for sustainable urban mobility planning: methods, applications and challenges [PDF]

, 2016
Sustainable mobility planning is a new approach to planning, and as such it requires new methods of public participation, data collection and data aggregation.
Brudka, Cezary, Bąkowska, Edyta, Czepkiewicz, Michał, Jankowski, Piotr, Kaczmarek, Tomasz, Mikuła, Łukasz, Młodkowski, Marek, Wójcicki, Michał, Zwoliński, Zbigniew   +8 more
core   +1 more source

High‐Precision Silicon Microgrooves via Metal‐Assisted Chemical Etching (MACE) Using Electrospun Nanofibers

Advanced Materials Interfaces, EarlyView.
This paper presents a novel, low‐cost process for fabricating high‐precision silicon microstructures using an electrospun nanofiber mask. It details the dual functionality of the palladium (Pd) nanocluster mask, which acts as a catalyst for Metal‐Assisted Chemical Etching (MACE) in acidic solutions and as a porous protective layer in alkaline ...
Mun Jeong Choi, Dong Ho Lee, Han Seul Kim, Geon Hwee Kim   +3 more
wiley   +1 more source

An analysis of the role of non-governmental organizations in improving the urban management system from the perspective of the citizens of the metropolis of Tehran [PDF]

تحقیقات کاربردی علوم جغرافیایی, 2022
In this regard, the main purpose of this study is to investigate the role of non-governmental organizations in improving the urban management system of Tehran metropolis in six physical, functional, social, economic, environmental and institutional ...
sirous rahimzadeh sisibig, alireza shichaslami, Kianoosh zakerhaghighi   +2 more
doaj  

Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC

Advanced Robotics Research, EarlyView.
The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang, Jianyang Dong, Yongming Yao, Kaijin Hu, Jianxiong Cui, Yikai Luo, Jiawen Zhang, Shichao Niu   +7 more
wiley   +1 more source

Towards a Multi-Scale Effect of Land Mixed Use on Resident Population—A Novel Explanatory Framework of Interactive Spatial Factors

Land
Starting from Jane Jacobs’ critiques and largely promoted and emphasized by New Urbanism, land mixed use (LMU) has become prevalent worldwide. It is believed to be an efficient approach to shaping a higher level of vitality in the economy, equality in ...
Liu Liu, Huang Huang, Jiaxin Qi
doaj   +1 more source

Long‐Term Elevated CO2 Improves Soil Health and Rice Yields in Paddy Fields

Advanced Science, EarlyView.
Combining the two longest‐running rice free‐air CO2 enrichment experiments with a global data synthesis, this study demonstrates that long‐term elevated CO2 consistently enhances soil health. In rice paddies, this improvement sustains the CO2 fertilization effect over decades.
Fan Jiang, Wenchao Du, Kees Jan van Groenigen, Josep Peñuelas, Scott X. Chang, Lian Song, Chuang Cai, Yu Wang, Lin Deng, Zhengkun Hu, Weishou Shen, Qicong Wu, Haiyang Yu, Ying Yin, Fuxun Ai, Wei Zhou, Dongming Wang, Jianqiang Sun, Xiaoyuan Yan, Renfang Shen, Jiabao Zhang, Hongyan Guo, Chunwu Zhu   +22 more
wiley   +1 more source