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Aging factor and its prediction models of chromium ecotoxicity in soils with various properties

SCIENCE OF THE TOTAL ENVIRONMENT 2022年 847卷 157622页

作者： Sun, Xiaoyi Qin, Luyao Wang, Lifu zhao, shuwen Yu, Lei Wang, Meng Chen, Shibao Chinese Acad Agr Sci Inst Agr Resources & Reg Planning Beijing 100081 Peoples R China

Aging of pollutants determines bioavailability and toxicity thresholds of environmental pollutants in soil. However, the ecotoxicity of chromium(Cr) rarely considers the effect of aging as well as soil properties. In order to explore the aging characteristics and establish their quantitative relationship with different soil properties, this study selected 7 soils with different properties through exogenous addition of Cr and determined its toxicity on barley root elongation. From 14d to 540d, EC10 and EC50 of barley root elongation ranged from 21.40 to 312.52 (***(-1)) and 50.15 to 883.88 (***(-1)) respectively. The hormesis appeared in the dose-response curve of acid soil as relative barley root elongation reached >110 % compared with the control. Extended aging time of Cr from 14d to 540d was associated with the attenuation of the toxicity of Cr, as the aging factor increased from 1.26 to 6.09 for EC50, from 0.88 to 4.98 for EC10. The prediction model of AFEC(50) and soil properties is lg (AF(360d)) = 0.306lg Clay+0.026lg CEC + 0.240 (R-2 = 0.872, P < 0.01). The results demonstrated that with the extension of aging time, the toxicity of Cr decreased at 360d and reached a slow reaction stage, after that soil OC, Clay and CEC could well explain the aging procedure of Cr (VI). These results are beneficial for risk assessment of Cr contaminated soils and establishment of a soil environmental quality criteria for Cr.

关键词： Chromium Toxicity thresholds Hormesis Aging factor Dose-response curve

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CAS FGOALS-f3-L Model Datasets for CMIP6 DCPP Experiment

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Advances in Atmospheric Sciences 2023年第10期40卷 1911-1922页

作者： Shuai HU Bo WU Yiming WANG Tianjun ZHOU Yongqiang YU Bian HE Pengfei LIN Qing BAO Hailong LIU Kangjun CHEN shuwen zhao State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of the Chinese Academy of Sciences Beijing 100864China

The outputs of the Chinese Academy of Sciences(CAS)Flexible Global Ocean-Atmosphere-Land System(FGOALSf3-L)model for the decadal climate prediction project(DCPP)of the Coupled Model Intercomparison Project Phase 6(CMIP6)are described in this *** FGOALS-f3-L was initialized through the upgraded,weakly coupled data assimilation scheme,referred to as EnOI-IAU,which assimilates observational anomalies of sea surface temperature(SST)and upper-level(0–1000-m)ocean temperature and salinity profiles into the coupled ***,nine ensemble members of 10-year hindcast/forecast experiments were conducted for each initial year over the period of 1960–2021,based on initial conditions produced by three initialization *** hindcast and forecast experiments follow the experiment designs of the Component-A and Component-B of the DCPP,*** decadal prediction output datasets contain a total of 44 monthly mean atmospheric and oceanic *** preliminary evaluation indicates that the hindcast experiments show significant predictive skill for the interannual variations of SST in the north Pacific and multi-year variations of SST in the subtropical Pacific and the southern Indian Ocean.

关键词： CMIP6 DCPP FGOALS-f3-L decadal prediction model initialization

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Research on the application of immersive media in new retail cyberspace

Research on the application of immersive media in new retail...

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International Conference on Image Processing and Intelligent Control (IPIC)

作者： Zhang KeWei Jiang Mai zhao shuwen Liaoning Commun Univ Dept Animat Shenyang 110136 Peoples R China Criminal Invest Police Univ China Dept Criminal Invest & Counter Terrorism Collge Shenyang 110854 Peoples R China Pukyong Natl Univ Dept Marine Design Convergence Engn Busan 48513 South Korea

ISBN: (数字)9781510647251

ISBN: (纸本)9781510647251;9781510647244

While the new pneumonia epidemic (CVD-19) has had an unprecedented impact on the traditional economic model, it has also given a huge boost to the new retail industry immersive technologies such as Virtual Reality (VR) and Augmented Reality (AR). Mixed Reality (MR)will achieve breakthrough development of even more 5G technology, focusing on digital media with multi-sensory interaction features such as visual, auditory, and kinesthetic-immersive media-to build a new paradigm for commercial information dissemination Therefore, it is of obvious relevance to understand the value of immersive media in the digital retail space an to find the right way to apply it to the way coastal cities grow economically.

关键词： New Retail Virtual Reality 3D images online sales

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粤港澳大湾区规则衔接的理论内涵与创新样态——以广东省推进规则衔接实践为例

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行政论坛 2025年第1期32卷 66-76页

作者：杨爱平赵庶文华南师范大学政治与公共管理学院广东广州510006

强化跨境治理中的规则衔接不仅是粤港澳大湾区建设的核心问题,更是我国深入实施制度型开放的重要环节。从既有研究来看,其成果丰富了相关的理论和实践,但也存在对规则衔接的内涵界定不清导致的概念混用以及对经验阐释不够造成理论与实... 详细信息

强化跨境治理中的规则衔接不仅是粤港澳大湾区建设的核心问题,更是我国深入实施制度型开放的重要环节。从既有研究来看,其成果丰富了相关的理论和实践,但也存在对规则衔接的内涵界定不清导致的概念混用以及对经验阐释不够造成理论与实践脱节的问题。有鉴于此,需从以下两个方面加以深入探讨:首先,对规则进行概念厘定,基于制度主义理论明确了大湾区规则衔接的三维内涵,即规则衔接的主体、领域和路径;其次,采用群案例研究方法,以广东省推进大湾区规则衔接的首批20个案例为研究对象,对大湾区规则衔接实践中的三维创新样态进行了归纳阐释。研究表明:近年来大湾区规则衔接表现出主体变多、领域变广、路径变宽的显著特点。未来深化大湾区规则衔接,一是要用好重大平台,推动多元制度的互动和创新;二是要渐进推动粤港澳三地间整体的规则衔接;三是要探索更多领域的非正式规则衔接。

关键词：粤港澳大湾区规则衔接正式规则非正式规则群案例分析

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Effect on In³⁺ co-doping on photoluminescence and scintillation properties of LYSO:Ce crystal

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PHYSICA B-CONDENSED MATTER 2025年 699卷

作者： Yu, Jiaqi Li, Mingqing zhao, shuwen Xue, Zhongjun Ding, Dongzhou Feng, He Shanghai Univ Sch Mat Sci & Engn Shanghai 200444 Peoples R China Chinese Acad Sci Shanghai Inst Ceram Shanghai 201800 Peoples R China

In this work, a series of LYSO:0.03 at.% Ce,xat.%In (x = 0, 0.001, 0.005 and 0.01) crystals were successfully grown for the first time by the optical floating zone (FZ) method. The effect of In3+ co-doping on photoluminescence and scintillation properties of LYSO:Ce scintillation single crystal was investigated. It was found that at x = 0.001, the overall scintillation performance was optimized. This was attributed to the fact that In3+ co-doping reduces the concentration of Ce2 emission center and accelerates the photoluminescence decay time of Ce3+. The temperature dependence of photoluminescence of LYSO:Ce,xat.%In samples was also investigated. Combined with density functional theory calculation, the phenomenon of In3+ co-doping leading to a decrease in quenching temperature of decay time was explained in terms of both crossover relaxation and introduction of impurity energy levels.

关键词： Scintillation crystal LYSO:Ce In co-doping Figure of merit Temperature dependence

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Efficient Byzantine Consensus Algorithm in IoT Scenarios

Efficient Byzantine Consensus Algorithm in IoT Scenarios

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6th International Conference on Intelligent Computing and Signal Processing (ICSP)

作者： Kaiyuan Li shuwen zhao Jing Zhang School of Computer Science and Technology Changchun University of Science and Technology Changchun China Medical School Shandong University Jinan China

This article proposes a layered blockchain architecture based on partitioned IoT to reduce the scalability requirements of the Internet of Things for blockchain. In addition, in response to the problem of low performance of traditional Byzantine fault-tolerant consensus algorithms such as PBFT in IoT scenarios, a parallel block verification Byzantine consensus algorithm (PVBFT) is proposed based on a layered blockchain architecture based on partitioned IoT. This algorithm improves the VRF lottery algorithm to select consensus nodes quickly, replaces single chain storage structure with DAG structure, introduces coordination nodes, and fully utilizes the high concurrency of DAG. We have implemented multi-node collision-free block packaging and multi-block parallel verification, using aggregation signature to reduce communication costs during the Byzantine consensus process and effectively improve the throughput of the consensus algorithm. The experimental results show that compared with the PBFT consensus algorithm, PVBFT has lower communication overhead and higher performance.

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民营企业市场平等准入权立法保护的检视与重构

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甘肃社会科学 2022年第5期 194-205页

作者：赵树文河北大学法学院河北保定071000 河北大学共同富裕研究中心河北保定071000

对市场平等准入权的立法保护是推动民营企业发展的重要支点,其内在逻辑源于市场平等准入权在民营企业经济权利体系中的高级位阶即核心序位,外在动因源于经济发展模式转换、竞争政策贯彻、国有企业治理以及营商环境塑造等多元化需求。当... 详细信息

对市场平等准入权的立法保护是推动民营企业发展的重要支点,其内在逻辑源于市场平等准入权在民营企业经济权利体系中的高级位阶即核心序位,外在动因源于经济发展模式转换、竞争政策贯彻、国有企业治理以及营商环境塑造等多元化需求。当前我国对民营企业市场平等准入权的立法保护呈多元化情形,具体可划分为宣示性保护模式、抽象性保护模式、竞争性保护模式、行政性保护模式以及清单性保护模式等五种类型。上述多元化立法保护模式对民营企业市场平等准入权提供了多层级的制度支撑,但是依然存在着突出的问题,包括专门法律制度缺失、主体实施法规位阶较低、制度体系建构欠缺、民营企业参与程度不足以及配套关联立法发展迟缓等等。因此,有必要沿着立法模式的改进、立法位阶的提升、立法内容的拓补、立法程序的优化以及立法保障的升级等路径,推进民营企业市场平等准入权立法保护的重构。

关键词：民营企业市场平等准入权权利位阶立法模式营商环境负面清单

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Synthesis and application of silver and copper nanowires in high transparent solar cells

Advanced Powder Materials

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Advanced Powder Materials 2022年第4期1卷 24-38页

作者： Jinpeng Yang Fayin Yu Anran Chen shuwen zhao Yao Zhou Shusheng Zhang Tao Sun Guangzhi Hu International Joint Research Center of China for Optoelectronic and Energy Materials School of Materials and EnergySchool of Ecology and Environmental ScienceYunnan UniversityKunming 650091China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China School of Engineering The University of EdinburghSouth BridgeEdinburghEH89YLUK College of Chemistry Zhengzhou UniversityZhengzhou 450000China

Electrodes in new function-flexible optoelectronic devices,need to meet the requirements of foldability and high *** last decades,thousands of research about copper and silver nanowires promoted the prosperity of photovoltaic *** this paper,we focus on the recent progresses of silver and copper nanowires for high transparent solar cell application,including preparation and optimization *** addition,the primary obstacles of nanowire transparent electrodes in perovskite solar cells,organic solar cells and dye sensitized solar cells were ***,the application prospects of nanowire-based high transparent solar cells were outlined.

关键词： Transparent electrode Sheet resistance Visible transmittance Solar cell Integrated photovoltaic

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Interface engineering of bimetallic nitrides nanowires as a highly efficient bifunctional electrocatalyst for water splitting

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JOURNAL OF ALLOYS AND COMPOUNDS 2022年 919卷

作者： Dai, Ruijie Zhang, Hua Zhou, Weijie Zhou, Yao Ni, Zitao Chen, Ji zhao, shuwen zhao, Yifan Yu, Fayin Chen, Anran Wang, Rongfei Sun, Tao Yunnan Univ Int Joint Res Ctr Optoelect & Energy Mat Kunming 650091 Peoples R China Yunnan Univ Sch Mat & Energy Kunming 650091 Peoples R China Univ Edinburgh Sch Engn Edinburgh EH9 3JW Scotland

Electrolytic water splitting offers a prodigious amount of hydrogen and oxygen production, which could satisfy the demand for clean energy for building the community of human destiny. Thus, as the key technology barrier, the development of a low-cost and high-performance bifunctional transition metal electrocatalyst toward water splitting is still a challenge. In this work, aiming to enhance electrocatalytic performance, the nickel molybdenum nitride heterostructure nanowire arrays were synthesized on nickel foam (Ni3N-Mo2N/NF) via hydrothermal strategy followed by a direct nitridation, from which the heterostructure nanowire was achieved. The self-supporting Ni3N-Mo2N/NF electrodes exhibits very low over potentials of 66 and 252 mV at 10 mA cm(-2) for the hydrogen evolution reaction and oxygen evolution reaction, respectively. When the cathode and anode were both Ni3N-Mo2N/NF, a current density of 10 mA cm(-2) was achieved with only 1.55 V. This work provides a new idea for the design and preparation of non-precious metal-based transition metal nitride catalysts. (C) 2022 Elsevier B.V. All rights reserved.

关键词： Heterointerfaces Transition metal nitrides Hydrogen evolution reaction Oxygen evolution reaction Overall water splitting

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清偿能力测试标准主导公司资本分配规制的解析

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北京理工大学学报（社会科学版） 2022年第5期24卷 84-96页

作者：赵树文河北大学法学院河北保定071002

清偿能力测试标准是一个与资本维持原则相对称的概念,其旨在以公司满足对其到期债务的清偿能力作为公司资本分配的先决条件。1980年美国《示范公司法》确立该标准对公司资本分配规制的主导地位,而导致这一立法变革的逻辑动因则包括内外... 详细信息

清偿能力测试标准是一个与资本维持原则相对称的概念,其旨在以公司满足对其到期债务的清偿能力作为公司资本分配的先决条件。1980年美国《示范公司法》确立该标准对公司资本分配规制的主导地位,而导致这一立法变革的逻辑动因则包括内外两个方面。内部动因源于该标准对债权人核心关切即公司是否具备对其到期债务清偿能力的精准把握,外部动因则在于资本维持原则对债权人保护的僵化与低效。“资产负债表测试”“衡平清偿能力测试”与“资本充足率测试”构成该标准嵌入公司资本规制体系的三种具体模式,各种模式关注重心明显有别,但又存在着紧密关联。该标准的建构从多维路径优化对公司资本的分配规制,包括规制理念的修正、规制目标的拓展、规制方式的改变、规制程序的转换以及规制缝隙的填补。鉴于中国公司资本规制立法的未来发展,有必要对该标准进行借鉴,建构综合性清偿能力测试模式,同时还应拓补董事信义义务制度、完善债权人撤销权制度以及发展商事估值技术制度,以构建完备的清偿能力测试标准制度体系。

关键词：清偿能力测试标准资本分配规制资本维持债权人保护

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