Results 51 to 60 of about 1,275,926 (300)

Trifluoromethoxylated Electron Acceptor Enabling Ternary Organic Solar Cells with over 20% Power Conversion Efficiency

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li   +16 more
wiley   +1 more source

Hong Kong as Alternative Sinophone Articulation: Translation and Literary Cartography in Dung Kai-Cheung’S Atlas: The Archaeology of an Imaginary City

open access: yesOpen Cultural Studies, 2018
Following the 2014 Umbrella Movement, Hong Kong society has witnessed a series of fights between social (youth) activists and its Special Administrative Government (SAR).
Chao Long
doaj   +1 more source

Studies on Hong Kong hepatics : 2., notes on some newly recorded liverworts from Hong Kong [PDF]

open access: yes, 1996
Based on field work and herbarium studies, 44 species belonging to 21 genera and 11 families of hepatics are newly reported for Hong Kong.
So, M.L., Zhu, R.L.
core  

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai   +6 more
wiley   +1 more source

Today in Guangzhou, Tomorrow in Hong Kong? A Comparative Study of the Language Situation in Two Cities

open access: yesJournal of Current Chinese Affairs, 2020
Many in Hong Kong voice concerns about the fate of Cantonese, including nativists (“localists”) and the general public. Guangzhou is seen as a harbinger of diminishing Cantonese in Hong Kong.
Barry Sautman, Xinyi Xie
doaj   +1 more source

Hong Kong\u27s democratic movement and the making of China\u27s offshore civil society

open access: yes, 2012
Hong Kong\u27s civil society has remained vibrant since the sovereignty handover in 1997, thanks to an active defense by the democratic movement against Beijing\u27s attempts to control civil liberties.
HUNG, Ho Fung, IP, Iam Chong
core   +1 more source

Constructing Ionic Fast Diffusion Channels on LiNi0.5Mn1.5O4 for Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐modification strategy is developed for LNMO cathode, where bulk Ti doping stabilizes the oxygen framework and simultaneously drives the in situ formation of LaTi2O6 nano‐islands as ion diffusion channels on (111) surfaces, enabling high‐rate capacity (∼100 mAh g−1 at 30 C) and excellent cycling retention (87.8% after 1000 cycles).
Xinyi Zhang   +10 more
wiley   +1 more source

Young onset breast cancer in Southern China – a 5-year clinico-pathological study from a multi-centre database

open access: yesCancer Treatment and Research Communications, 2020
Aims: Breast cancer onset is known to be younger in China when compared to many westernized countries, the reason remains unknown. This study aims to evaluate the clinical and pathological characteristics of young breast cancer in Hong Kong and Shenzhen,
Michael Co, FRCS (Edin), FACS   +1 more
doaj   +1 more source

Toward Stable Multivalent Metal Batteries: Understanding the Interfacial Chemistry for Magnesium and Calcium Metal Anodes

open access: yesAdvanced Functional Materials, EarlyView.
Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin   +4 more
wiley   +1 more source

The chronology of the 2002-2003 SARS mini pandemic. [PDF]

open access: yes, 2004
Severe acute respiratory syndrome (SARS) was a new human disease in the autumn of 2002. It first occurred in Southern China in November 2002 and was transported to Hong Kong on February 21, 2003 by an infected and ill patient.
Cherry, James D
core  

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