Results 41 to 50 of about 1,349 (263)

Defect‐Functionalization‐Mediated Tunneling Drives Nonlinear Photoemission in Perovskites

Advanced Science, EarlyView.
This cover illustration depicts CsPbBr3 perovskite nanocrystals embedded with functionalized defect vacancies, where electrons migrate through defect‐mediated pathways and emit as lightning‐like beams. The imagery visualizes the core discovery of our work—defect‐functionalization‐mediated tunneling enabling nonlinear photoemission, where deep‐level ...
Hang Ren, Xi Zhang, Yicheng Wang, Shuai Wang, Zhi Wang, Yumeng Li, Jikai Yang, Xin Wang, Weijun Chen, Yining Mu   +9 more
wiley   +1 more source

A Proposed Method to Estimate Climate Change Impacts on Dam's Spillway Design Flood

Journal of Flood Risk Management
Overtopping of a dam, which can be due to inadequate spillway design, is often a precursor to dam failure. Generally, dam spillways are designed using historical hydro‐meteorological records.
Mohammad Reza Khazaei
doaj   +1 more source

Insights into the Oroville Dam 2017 Spillway Incident

Geosciences, 2019
In February 2017, a failure occurring in Oroville Dam’s main spillway risked causing severe damages downstream. A unique aspect of this incident was the fact that it happened during a flood scenario well within its design and operational procedures,
Aristotelis Koskinas, Aristoteles Tegos, Penelope Tsira, Panayiotis Dimitriadis, Theano Iliopoulou, Panos Papanicolaou, Demetris Koutsoyiannis, Tracey Williamson   +7 more
doaj   +1 more source

Scale Effects on the Discharge Coefficient of Ogee Spillway with an Arc in Plan and Converging Training Walls [PDF]

Civil Engineering Infrastructures Journal, 2016
Dam spillways are the structures that lead rightly and safely the outflow downstream, so that the dam integrity can be guaranteed. Many accidents with dams have been caused by an inadequate spillway design or insufficient capacity.
Mojtaba Saneie, Jalal SheikhKazemi, Mehdi Azhdary Moghaddam   +2 more
doaj   +1 more source

A Dual‐Channel Synergistic Ultrasensitive Biosensor for Tumor Liquid Biopsy

Advanced Science, EarlyView.
ABSTRACT Liquid biopsy technology, which detects circulating tumor DNA (ctDNA) in cerebrospinal fluid, plays a crucial role in the early diagnosis and precision treatment of gliomas. However, the intrinsically low abundance and rapid clearance of ctDNA pose substantial challenges for conventional analytical techniques, such as droplet digital PCR and ...
Yu Sun, Jing Zhang, Chenqing Liu, Jing Lou, Sihui Wang, Xiangtian Ji, Xiaofang Zhao, Shirui Xu, Jingyu Feng, Bin Liu, Chao Chang, Qinggang Ge, Jun Yang   +12 more
wiley   +1 more source

Practical Engineering Application and Hydraulic Characteristics of the Flow in Stepped Spillway with Pre-aerator Slot

工程科学与技术, 2010
:The hydraulic characteristics of smooth spillway, stepped spillway and pre-aerator stepped spillway were studied. The experimental investigations showed that the pre-aerator equipment can not only keep the stepped spillway’s large energy dissipation ...
Chen Jian-Gang, ZHang Jian-Min, Xu Weilin   +2 more
doaj  

The use of Regression Triplet in Hydraulic Modelling on the Example of Determination of Overfall Coefficient

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016
The paper is focused on a hydraulic problem of water overfall on hydrotechnic structures, especially outlets and spillways of water reservoirs. The main parameter of such structures is its discharge capacity depending on overfall coefficient, dimensions ...
Petr Pelikán, Jana Marková
doaj   +1 more source

NMI Regulates Adipose Adaptive Thermogenesis Through TLR4/IRF3 Signaling to Promote Obesity

Advanced Science, EarlyView.
Adipose tissue‐derived NMI is secreted under metabolic stress and suppresses adaptive thermogenesis through TLR4/IRF3 signaling, repressing the PPARα/PGC‐1α/UCP1 thermogenic transcriptional program. Genetic ablation or anti ‐ NMI monoclonal antibody treatment enhances energy expenditure, protects against DIO, and ameliorates adipose tissue inflammation,
Ting‐Ting Li, Xin‐Yuan Zhao, Min Zhang, Zhuang‐Feng Weng, Xiao‐Ran Guo, Ying‐Fang Liu, Qiao‐Ping Wang, Huan‐Huan Liang   +7 more
wiley   +1 more source

Investigating the Scouring Rate in Plunge Pools Resulting from Impinging Jets With and Without Aeration [PDF]

علوم و مهندسی آبیاری, 2018
draining the flood of enormous dams and transmitting the procedure to the downstream is one of the important issues regarding hydraulic structures. Plunge pools are the main structures to dissipate the high rate of energy.
Akbar Armaghani, Babak Lashkarara, ALi Mohammad Akhond - Ali   +2 more
doaj   +1 more source

Confinement‐Driven CO Spillover in CuAg@MSN Tandem Catalysts Boosts C2 Selectivity Toward Electrocatalytic CO2 Reduction

Advanced Science, EarlyView.
The CuAg@MSN catalyst developed in this study promotes C─C coupling by regulating the coverage of *CO intermediates through spatial confinement effects, significantly enhancing the selectivity of CO2 electroreduction for C2 product formation. ABSTRACT Tandem catalysts represent a promising paradigm for synergistic electrochemical CO2 reduction (CO2RR ...
Jiaying Zhang, Junjie Huang, Siying Zhang, Yanjia Cui, Chao Kong, Zijian Peng, Huihui Jiang, Sirui Deng, Zhuoyao Chen, Caili Yang, Ketong He, Zhen Li, Yibing Song, Gongwei Wang, Lin Zhuang   +14 more
wiley   +1 more source