-
2 months ago | 
nature.com | Chang Liu |Yawei Lv |Pan Xu |Chao Ma |Xingqiang Liu |Fang Wang | +5 more
AbstractBarrier detectors such as nBn and pBp architectures (formed by a n- or p-type contact layer, a barrier layer and a n- or p-type absorber) aim to block one carrier type while allowing the other to pass, but require complex hetero-integration and precise band engineering. Here, we propose an ultra-thin polar barrier strategy using a 0.75 nm water-intercalated WSe2/H2O/PdSe2 heterostructure.
-
Dec 19, 2024 | 
journals.plos.org | Chao Ma
Loading metrics Open Access Peer-reviewedResearch Article Citation: Xu Q, Xu Y, Ma C (2024) Analysis of contemporary value and influence of intangible cultural heritage based on online review mining. PLoS ONE 19(12): e0315805.
-
Nov 18, 2024 | 
mdpi.com | Hang Yin |Chao Ma |Haifeng Wang |Zhihao Sun
1. IntroductionAccording to statistics provided by the International Energy Agency (IEA), in 2022, private cars and vans were responsible for over 25% of global oil consumption and approximately 10% of global energy-related CO2 emissions. To reduce greenhouse gas emissions, a growing array of countries are implementing carbon neutrality initiatives and other climate change actions [1].
-
Oct 31, 2024 | 
nature.com | Wu Zhou |Chao Ma |Liang Yu |Rui Huang
AbstractAmbient-condition acetylene hydrogenation to ethylene (AC-AHE) is a promising process for ethylene production with minimal additional energy input, yet remains a great challenge due to the difficulty in the coactivation of acetylene and H2 at room temperature. Herein, we report a highly efficient AC-AHE process over robust sulfur-confined atomic Pd species on tungsten sulfide surface.
-
Oct 15, 2024 | 
nature.com | Chao Ma
AbstractTo optimize the current college sports data information management system, this study combines the Apriori association rule algorithm with web application development technology to upgrade the management system. Firstly, this study explores novel log mining techniques in genetic algorithms and web application development technology. Secondly, by integrating log mining techniques to optimize the Apriori algorithm, associations between sports data and information are discovered.
-
Oct 10, 2024 | 
mdpi.com | Xue Li |Chao Ma
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
-
Sep 28, 2024 | 
nature.com | Wei Wu |Hang Chen |Chen Li |Gang Lu |Chao Ma |Lei Ren | +1 more
Photovoltaic development has played a crucial role in mitigating the energy crisis and addressing global climate change. However, it has also had significant impacts on the ecological environment. To ensure the sustainable growth of the photovoltaic industry, it is essential to establish an indicator system to assess the ecological and environmental effects of photovoltaic development. This study utilizes the Driving-Pressure–Status–Impact-Response (DPSIR) framework to create an indicator system for evaluating the ecological and environmental effects of desert photovoltaic development. The study evaluates the ecological and environmental effects at the on-site (WPS), transitional zone (TPS), and off-site (OPS) areas of the Qinghai Gonghe Photovoltaic Park in China. The entropy weight method was utilized to calculate indicator weights, while the evaluation model and indicators were transformed uniformly to obtain standardized scores for ecological and environmental effects. and conducting a thorough analysis of the distribution characteristics and factors influencing the evaluation indicators’ scores. Overall, the large-scale development of desert photovoltaics in Gonghe County has had a positive impact on the ecological environment. The WPS had better ecological and environmental conditions than did the TPS and OPS, and the ecological and environmental evaluation levels of the WPS were categorized as “general” (0.439), while the ecological and environmental effect evaluation levels of the TPS (0.286) and OPS (0.28) were both “poor”, indicating significant room for improvement. Moreover, all indicators in the scheme layer, which are used to evaluate ecological and environmental quality, yielded higher scores for the WPS than for the TPS and OPS, demonstrating that photovoltaic development has a positive effect on desert area ecology and the environment.
-
Sep 26, 2024 | 
nature.com | Wei-Wei Wang |Qiang Fu |Feng Wang |Chao Ma
AbstractThe reverse water gas shift reaction can be considered as a promising route to mitigate global warming by converting CO2 into syngas in a large scale, while it is still challenging for non-Cu-based catalysts to break the trade-off between activity and selectivity.
-
Sep 5, 2024 | 
mdpi.com | Lei Liu |Chao Ma |Yong Duan |Xinyu Liu
1. IntroductionIntegrated sensing technology for space–air–ground–ocean (SAGO) contexts is a key research focus for next-generation mobile communications [1]. Underwater communication technology plays a crucial role in SAGO integrated sensing and information transmission systems. Acoustic waves are the sole effective medium for long-range underwater information transmission.
-
Aug 12, 2024 | 
mdpi.com | Hui Zeng |Chao Ma |Meng Wu
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
