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Dilemmas and Optimization of Third-Party Assessment System in Chinese Fair Competition Review

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Open Journal of Applied Sciences 2024年第8期14卷 2039-2049页

作者： Cui Xu mingyu hu The Law School of Hainan University Haikou China

The current predominant self-review mechanism by policy-making bodies suffers from deficiencies such as insufficient motivations, limited review capabilities, and weak external supervision. Third-party assessment, characterized by independence and specialization, is designed to mitigate these shortcomings. However, the implementation of third-party assessment faces challenges too. This paper intends to improve the third-party assessment system and to realize the legislative purpose of the system. Based on social research, discussions and exchanges with relevant parties, and the existing research results, this paper analyzes the challenges and possible optimization measures for the third-party assessment. The challenges include repulsion from policy-making bodies, insufficient independence of assessment bodies, disparity of assessment quality, and limited application of assessment outcomes. Possible optimization measures include promoting fair competition culture, increasing the acceptance of third-party assessment from policy-making bodies, enhancing the quality of third-party assessment, clarifying the relationship between policy-making bodies and assessment bodies, ensuring the independence of third-party assessments, and promoting the application of assessment results.

关键词： Fair Competition Review Self-Review Third-Party Assessment Dilemma Optimization

Filterless narrowband photodetectors enabled by controllable band modulation through ion migration: The case of halide perovskites

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InfoMat 2024年第1期6卷 123-138页

作者： Yu Li Shanshan Yu Junjie Yang Kai Zhang mingyu hu Weitao Qiu Fumin Guo Wei Qian Sean Reinecke Tao Chen Makhsud I.Saidaminov Jian Wang Shihe Yang Guangdong Provincial Key Lab of Nano-Micro Materials Research School of Chemical Biology and BiotechnologyShenzhen Graduate SchoolPeking UniversityShenzhenGuangdongthe People's Republic of China Shenzhen Bay Laboratory Institute of Biomedical EngineeringShenzhenGuangdongthe People's Republic of China School of Advanced Materials Shenzhen Graduate SchoolPeking UniversityShenzhenGuangdongthe People's Republic of China Department of Chemistry The University of Hong KongHong Kong SARthe People's Republic of China Hefei National Laboratory for Physical Sciences at Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringSchool of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefeiAnhuithe People's Republic of China College of Materials and Energy South China Agricultural UniversityGuangzhouGuangdongthe People's Republic of China Department of Chemistry University of VictoriaVictoriaBritish ColumbiaCanada

Narrowband photodetectors conventionally rely on optical structure design orbandpass filters to achieve the narrowband regime. Recently, a strategy forfilterless narrowband photoresponse based on the charge collection narrowing(CCN) mechanism was reported. However, the CCN strategy requires an electrically and optically “thick” photoactive layer, which poses challenges in controlling the narrowband photoresponse. Here we propose a novel strategy forconstructing narrowband photodetectors by leveraging the inherent ion migration in perovskites, which we term “band modulation narrowing” (BMN). Bymanipulating the ion migration with external stimuli such as illumination,temperature, and bias voltage, we can regulate in situ the energy-band structure of perovskite photodetectors (PPDs) and hence their spectral *** the Fermi energy levels obtained by the Kelvin probe force microscopy, the internal potential profiles from solar cell capacitance simulator simulation, and the anion accumulation revealed by the transient ion-drifttechnique, we discover two critical mechanisms behind our BMN strategy: theextension of an optically active but electronically dead region proximal to the top electrode and the down-bending energy bands near the electron transportlayer. Our findings offer a case for harnessing the often-annoying ionmigration for developing advanced narrowband PPDs.

关键词： band structure ion migration narrowband detection perovskite spatial distribution of charge carriers

基于涡识别技术的微结构壁面湍流减阻机理研究

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工程科学与技术 2024年第3期56卷 197-207页

作者：刘春烨王文娥周士越胡明宇凌刚胡笑涛西北农林科技大学旱区农业水土工程教育部重点实验室陕西杨凌712100

为探究微结构壁面湍流减阻机理,采用粒子图像测速技术(PIV)观测微结构壁面的水流特性,分别对超疏水壁面和微沟槽壁面的流速发展、雷诺切应力变化及涡的分布规律进行分析。引入流速的概念,对Omega(Ω)涡识别方法进行改进,建立新的Ω_(M)... 详细信息

为探究微结构壁面湍流减阻机理,采用粒子图像测速技术(PIV)观测微结构壁面的水流特性,分别对超疏水壁面和微沟槽壁面的流速发展、雷诺切应力变化及涡的分布规律进行分析。引入流速的概念,对Omega(Ω)涡识别方法进行改进,建立新的Ω_(M)涡识别方法,并采用该方法对近壁面涡结构进行识别,提出液流涡密度定义,定量分析近壁处不同强度涡的分布,为研究微结构壁面减阻机理奠定基础。研究结果表明:在相同雷诺数下,边界层内流速由大到小分别为超疏水壁面、微沟槽壁面和光滑壁面,两种微结构壁面对数律层流速分布与光滑壁面相比明显外移,说明微结构壁面具有减阻效果;雷诺切应力随法向无量纲距离y+的增大而先增大后减小,其中,超疏水壁面雷诺切应力的最大值与其他壁面相比最小;采用Ω_(M)方法对近壁处涡进行识别,发现近壁0.1倍水深内,两种微结构壁面上水流中涡结构以弱涡为主,在0.2倍水深内开始出现强涡;与光滑壁面相比,微结构壁面近壁处水流弱涡的涡密度增加,强涡的涡密度减小,说明微结构壁面抑制了水流中强涡的发展;在3种壁面中,微沟槽壁面的减阻率大于7.60%;超疏水壁面的弱涡涡密度大,强涡涡密度小,减阻效果最好,减阻率大于9.48%。微结构壁面可有效降低水流输运能耗、提高其输运效率。

关键词：超疏水壁面沟槽壁面 Ω_(M)方法涡密度减阻

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碳税征收对我国宏观经济和石化产业影响

石油石化绿色低碳 2024年第2期9卷 25-33页

作者：高蕙雯胡明禹中国石化集团经济技术研究院有限公司中国石化咨询有限责任公司北京100029

碳税是国际上碳定价机制的重要形式之一。在我国,适时开征碳税,对于指引产业发挥税收政策对绿色低碳发展作用、有效弥补碳交易定价缺陷、实现“双碳”目标意义重大。该文基于最新的投入产出表,构建中国碳税可计算一般均衡模型,采用动态... 详细信息

碳税是国际上碳定价机制的重要形式之一。在我国,适时开征碳税,对于指引产业发挥税收政策对绿色低碳发展作用、有效弥补碳交易定价缺陷、实现“双碳”目标意义重大。该文基于最新的投入产出表,构建中国碳税可计算一般均衡模型,采用动态碳税调整机制,模拟分析碳税征收对宏观经济和产业经济的影响。研究发现,征收碳税将对我国GDP、出口、居民收入等经济指标造成负面影响,但会抑制高耗能行业发展,从而优化产业结构;对于石化产业,实施碳税会降低医药制品价格,提升其市场竞争力,但会导致基础化学原料等高碳排行业产出和出口的双重下降;引导消费者选择低碳环保产品,从而降低传统橡塑制品产出;综合来看,实施碳税会显著降低高耗能石化行业化石能源消耗和碳排总量,降幅超过全社会平均水平,有利于推动石化行业低碳发展。

关键词： “双碳”目标碳税政策 CGE 模型经济影响减排效果

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持久性隆起性红斑合并多系统损害一例

中国麻风皮肤病杂志 2024年第2期40卷 124-126页

作者：胡名玉徐薇薇周朋朋唐俊婷昆明市昆明医科大学第一附属医院皮肤科云南昆明650032

本文报道一例持久性隆起性红斑合并多系统损害。患者因四肢、臀部斑块结节伴痛2年余入院。病程中出现眼部疼痛、视物模糊、四肢关节疼痛、脐周隐痛等症状。经组织病理确诊。给予糖皮质激素、羟氯喹等治疗后皮疹、腹痛、关节痛好转。

关键词：持久性隆起性红斑多系统损害治疗

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基于ESG理念的本土品牌营销策略研究

传媒论坛 2024年第11期7卷 46-48页

作者：李嘉宁胡明宇苏州大学传媒学院苏州大学传媒学院广告系

ESG本质上是指从环境、社会和治理三个维度构建衡量企业可持续高质量发展水平的考察体系,现已作为主题框架广泛应用于品牌营销中。为顺应政策导向和消费环境,本土品牌在ESG营销实践中积极尝试,从多个细分议题出发,给出了一份份优秀答卷... 详细信息

ESG本质上是指从环境、社会和治理三个维度构建衡量企业可持续高质量发展水平的考察体系,现已作为主题框架广泛应用于品牌营销中。为顺应政策导向和消费环境,本土品牌在ESG营销实践中积极尝试,从多个细分议题出发,给出了一份份优秀答卷。结合各个高频议题下典型案例来探析本土品牌的ESG营销现状,并据此总结出ESG营销的实现路径。

关键词： ESG 品牌ESG ESG营销本土品牌

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绿氢标准、融资体系及中欧氢能合作路径分析

当代石油石化 2024年第6期32卷 11-16页

作者：胡明禹刘亦凡高蕙雯中国石化集团经济技术研究院有限公司中国石化咨询有限责任公司北京100029 中国石油大学(北京)机械与储运工程学院北京102299

欧美国家相继出台绿氢定义标准和草案,但全球范围内绿氢定义、范围要求、标准要求尚未达成共识,对未来开展跨国绿氢项目投融资和贸易带来一定阻力。欧盟是该领域的先行者,2023年率先成立了欧洲氢能银行,以刺激和支持本土氢能产业发展。... 详细信息

欧美国家相继出台绿氢定义标准和草案,但全球范围内绿氢定义、范围要求、标准要求尚未达成共识,对未来开展跨国绿氢项目投融资和贸易带来一定阻力。欧盟是该领域的先行者,2023年率先成立了欧洲氢能银行,以刺激和支持本土氢能产业发展。其设立初衷是帮助欧盟更好应对氢能项目发展初期的投资缺口,设计了4项功能机制:释放欧盟及第三国对氢能的投资(拍卖即服务)、扩大氢能进口、整合氢能融资政策、提升融资工具的协调性和效率。绿氢的碳属性和交易属性是支撑欧洲开展绿氢交易的关键依据和重要基础。全球碳中和大势下,氢能已日渐成为未来国际经济合作的重要领域,有望成为打造中欧能源绿色合作伙伴关系的新增长点。为此建议,加强绿氢标准合作和协调,推动国际互认和互用;多形式参与欧洲氢能银行合作,推动项目合作共建;加速建立全球氢能市场,开辟新型能源贸易关系;建立中国特色的氢能投资银行,整合现有金融资源。

关键词：绿氢欧洲氢能银行拍卖即服务绿氢融资体系绿氢标准

Mechanical and thermal properties of RETaO4(RE=Yb,Lu,Sc)ceramics with monoclinic-prime phase

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Journal of Materials Science & Technology 2020年第17期52卷 20-28页

作者： Lin Chen mingyu hu Jun Guo Xiaoyu Chong Jing Feng Faculty of Material Science and Engineering Kunming University of Science and TechnologyKunming 650093People's Republic of China School of Engineering Brown UniversityProvidenceRl02912USA

As candidate thermal/environmental barrier coatings(T/EBCs),the structure characteristics and comprehensive properties of monoclinic-prime(m')RETaO4(RE=Yb,Lu,Sc)with excellent Al2O3/SiO2 chemical compatibility are *** thermal insulation protection will be provided by m'RETaO4 due to their low thermal conductivity(~1.6 Wm^-1 K^-1,900℃)and prominent thermal radiation resistance,which is much better than those of YSZ(~2.5 Wm^-1 K^-1,1000℃)and La-12 Zr2O7(~2.0 Wm^-1 K,900℃).The thermal expansion coefficients(TECs)are 3.0–8.0×10^-6 K^-1(200-1200℃),which is suitable for T/EBCs ***,absence of phase transition and extraordinary chemical compatibility with Al2O3/SiO2 up to 1500℃indicate the potential application *** documented governing mechanisms of m'RETaO4 properties will enable researchers to promote their application in the future investigation.

关键词： Ceramics Thermal/environmental barrier coatings Rare earth tantalates Mechanical property Thermal conductivity Chemical compatibility

Mechanical property enhancements and amorphous thermal transports of ordered weberite-type RE_(3)Nb/TaO_(7) high-entropy oxides

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Journal of Advanced Ceramics 2023年第2期12卷 399-413页

作者： Lin CHEN Keren LUO Baihui LI mingyu hu Jing FENG Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China Peking University Shenzhen Graduate School Shenzhen 518055China

A_(3)BO_(7)-type(A=rare earth(RE),B=Nb or Ta)oxides have been studied as protective coating materials because of their low thermal conductivity;however,their hardness,toughness,and stiffness are insufficient,particularly for members with webeirte-type *** this work,we have synthesized two high-entropy oxides(HEOs)of weberite-type RE niobates/tantalates(RE_(3)Nb/TaO_(7)),i.e.,(Nd_(1/7)Sm_(1/7)Eu_(1/7)Gd_(1/7)Dy_(1/7)Ho_(1/7)Er_(1/7))_(3)NbO_(7)(7HEOs-Nb)and(Nd_(1/7)Sm_(1/7)Eu_(1/7)Gd_(1/7)Dy_(1/7)Ho_(1/7)Er_(1/7))3(Nb_(1/2)Ta_(1/2))O_(7)(7HEOs-NbTa),to overcome the mechanical *** short-and long-range ordered arrangements of RE cations in the A-site and Nb/Ta cations in the B-site were identified by the X-ray diffraction(XRD),scanning electron microscopy equipped with energy-dispersive spectrometry(EDS),and transmission electron *** enhancements in hardness(H=9.4 GPa)and fracture toughness(KIC=2.0 MPa·m^(1/2))were realized by grain refinement,solid solution strengthening,and high stiffness(K).The exceptional phase stability at 25-1500℃,amorphous thermal conductivity(k=1.5-1.7 W·m^(−1)·K^(−1) at 25-900℃),and high thermal expansion coefficients(TEC>11.0×10^(−6) K^(−1) at 1500℃)further supported their potential application as protective coating materials.

关键词： high-entropy oxides(HEOs) RE niobates/tantalates(RE_(3)Nb/TaO_(7)) stiffness(K) fracture toughness(KIC) thermal transports