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Phase Change Microcage for Multienergy Capture and Microwave Absorption

Renewables 2024年第3期2卷 183-193页

作者： Yang li Zijian liao Panpan liu Yu Jiang Xiao chen Guanglei Wu Ge Wang School of Physics and Astronomy Beijing Normal UniversityBeijing 100875 Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055 Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071 Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory of Function Materials for Molecule&Structure ConstructionSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083

Advanced multifunctional composite phase change materials(PCMs)integrating dual-field excitative thermal storage and microwave absorption have been recently highlighted in cutting-edge ***,we designed a metal–organic framework(MOF)derived magnetic NiCo-modified open carbon microcage(NiCo@C)for the encapsulation of PCMs,which simultaneously achieve fast-response multienergy capture and bimode stealth functions:The NiCo@C/PW composite PCMs exhibited a relatively high phase change enthalpy of 130.39 J/g due to the high cavity volume of the NiCo@C ***,the composite PCMs demonstrated excellent solar-thermal conversion,attributed to the local surface plasmon resonance effect of NiCo nanoparticles and full-spectrum absorption of high graphitized carbon ***,composite PCMs harvested high-efficiency magnetic-thermal conversion due to the Néel and Brownian relaxation effects of diffusely embedded magnetic NiCo *** importantly,this thermal energy storage system achieved high-performance microwave absorption with a minimum reflection loss(RL)of−38.1 dB at 11.8 GHz at only 2.35 mm *** designed all-in-one strategy created an innovative platform for constructing advanced multifunctional microwave-absorbing composite PCMs with thermal storage,dual-energy conversion,microwave absorption,and infrared stealth.

关键词： phase change materials open microcage multienergy capture thermal energy storage microwave absorption

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Fine-tuning N-doped species of C catalysts for 98%current efficiency of electrocatalytic decarboxylation into hindered ether

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Green Carbon 2024年第3期2卷 291-299页

作者： Weiqin Wei Zhen Wei Ruizhe li Hong Yuan Jiansheng chen Jun Lv Shuxin Ouyang Key Laboratory of Pesticide and Chemical Biology of Ministry of Education College of ChemistryCentral China Normal UniversityWuhan 430079China Beijing Key Laboratory for Green Catalysis and Separation Key Laboratory of Bejing on Regional Air Polution ControlBejing University of TechnologyBejing 100124China LONGi Solar Technology Co.Ltd Xi'an 710018China

Regulating the interaction between the substrate and electrode is crucial for maximizing catalytic *** this study,we developed a method for controlling the sintering temperature and introducing H2O2 post-treatment to modulate the N-doping of c catalysts,enhancing the interaction between the substrate and elec-trode to cause a radical reaction,thereby promoting electrocatalytic *** 10g of feedstock was used,the electrocatalytic system exhibited 9.4-and 4.2-fold increases in productivity and current efficiency,respectively,compared with the conventional method.A systematic investigation combining experiments and theoretical calculations revealed that pyridine N-oxide units not only promote bridging adsorption of the sub-strate and the formation of a substrate-enriched electric layer but also the transfer of mass and electrons,gen-erating more reactive carboxyl *** electrocatalytic system delivers a current efficiency of 98%,which is exceptional compared to previously reported *** system is in line with the development trend of the green chemical industry,combining flow reactors and photovoltaic *** study offers valuable insights and guidance for advancing electrocatalytic organic synthesis for future industrial applications.

关键词： N-doped carbon Electrocatalytic decarboxylation Current efficiency Pyridinic N-oxide

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Severe hypoxemia after radiofrequency ablation for atrial fibrillation in palliatively repaired tetralogy of Fallot: A case report

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World Journal of Cardiology 2024年第3期16卷 161-167页

作者： Zhi-Hang li lian Lou Yu-Xiao chen Wen Shi Xuan Zhang Jian Yang Department of Cardiovascular Medicine The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina Department of Cardiology The First Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310003Zhejiang ProvinceChina

BACKGROUND Patients with tetralogy of Fallot(TOF)often have arrhythmias,commonly being atrial fibrillation(AF).Radiofrequency ablation is an effective treatment for AF and does not usually cause severe postoperative hypoxemia,but the risk of complications may increase in patients with conditions such as *** SUMMARY We report a young male patient with a history of TOF repair who developed severe hypoxemia after radiofrequency ablation for AF and was ultimately confirmed to have a new right-to-left *** patient subsequently underwent atrial septal occlusion and eventually *** Radiofrequency ablation may cause iatrogenic atrial septal injury;thus possible complications should be predicted in order to ensure successful treatment and patient safety.

关键词： Atrial fibrillation Radiofrequency ablation Tetralogy of Fallot Right-to-left shunt Hypoxemia Medical decision Case report

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自然选择副现象论及其因果决定的限度与反思

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自然辩证法研究 2024年第5期40卷 53-59页

作者：柯文涌陈丽华中农业大学马克思主义学院武汉430070 华中农业大学农业历史研究中心武汉430070 海军工程大学政治理论系武汉430033

自然选择通常被预设了意向地作用于机体表型特征的因果力。自然选择副现象论否认自然选择和与其连在一起的目的论的因果实在性。有鉴于此,它把病原学功能当作目的论自然化基础,通过高阶因果还原取消自然选择的因果力。魏斯曼模型抽取于... 详细信息

自然选择通常被预设了意向地作用于机体表型特征的因果力。自然选择副现象论否认自然选择和与其连在一起的目的论的因果实在性。有鉴于此,它把病原学功能当作目的论自然化基础,通过高阶因果还原取消自然选择的因果力。魏斯曼模型抽取于魏斯曼切鼠尾巴案例,它被解读为提供了一条用表观因果干预的方法论证自然选择副现象论的经验因果进路。由于心灵哲学中的随附性概念恰好刻画了魏斯曼模型的共时性因果发生程序,它因此被借以论证表观因果作用的无效性。即便如此,自然选择副现象论并不能完全说明个体性机体何以适应性演化的问题,因为目的论因果有其不同于随附性因果的历时性因果发生程序,这决定了自然选择副现象论的因果决定限度。

关键词：自然选择副现象论随附性

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Ultrasomics in liver cancer: Developing a radiomics model for differentiating intrahepatic cholangiocarcinoma from hepatocellular carcinoma using contrast-enhanced ultrasound

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World Journal of Radiology 2024年第7期16卷 247-255页

作者： li-Ya Su Ming Xu Yan-lin chen Man-Xia lin Xiao-Yan Xie Department of Medical Ultrasound The First Affiliated HospitalInstitute of Diagnostic and Interventional UltrasoundSun Yat-Sen UniversityGuangzhou 510000Guangdong ProvinceChina

BACKGROUND Hepatocellular carcinoma(HCC)and intrahepatic cholangiocarcinoma(ICC)represent the predominant histological types of primary liver cancer,comprising over 99%of *** their differing biological behaviors,prognoses,and treatment strategies,accurately differentiating between HCC and ICC is crucial for effective clinical ***,an emerging image processing technology,can automatically extract various quantitative image features that may elude the human *** on the application of ultrasound(US)-based radiomics methods in distinguishing HCC from ICC are *** In our retrospective study,we included a total of 280 patients who were diagnosed with ICC(n=140)and HCC(n=140)between 1999 and *** patients were divided into training(n=224)and testing(n=56)groups for *** images and relevant clinical characteristics were *** utilized the XGBoost method to extract and select radiomics features and further employed a random forest algorithm to establish ultrasomics *** compared the diagnostic performances of these ultrasomics models with that of *** Four distinct ultrasomics models were constructed,with the number of selected features varying between models:13 features for the US model;15 for the contrast-enhanced ultrasound(CEUS)model;13 for the combined US+CEUS model;and 21 for the US+CEUS+clinical data *** US+CEUS+clinical data model yielded the highest area under the receiver operating characteristic curve(AUC)among all models,achieving an AUC of 0.973 in the validation cohort and 0.971 in the test *** performance exceeded even the most experienced radiologist(AUC=0.964).The AUC for the US+CEUS model(training cohort AUC=0.964,test cohort AUC=0.955)was significantly higher than that of the US model alone(training cohort AUC=0.822,test cohort AUC=0.816).This finding underscored the significant benefit of incorporating CEUS information in accurately distin-guishing ICC from HC

关键词： Cholangiocarcinoma Hepatocellular carcinoma Contrast-enhanced ultrasound Radiomics Primary liver tumor

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Glycerol Electrooxidation to Value-Added C_(1)-C_(3)Chemicals:Mechanism Analyses,Influencing Factors,Catalytic Regulation,and Paired Valorization

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Renewables 2024年第2期2卷 89-110页

作者： Chaogang Zhou Jiajun chen Jingjing Zhao Yuxuan Meng Zhenhua li Xianguang Meng Jiacheng Wang College of Metallurgy and Energy North China University of Science and TechnologyTangshan 063210 Hebei Iron and Steel Laboratory Tangshan 063210 School of Pharmacy North China University of Science and TechnologyTangshan 063210 Hebei Provincial Laboratory of Inorganic Nonmetallic Materials College of Materials Science and EngineeringNorth China University of Science and TechnologyTangshan 063210 State Key Laboratory of Chemical Resource Engineering College of ChemistryBeijing University of Chemical TechnologyBeijing 100029 Institute of Electrochemistry School of Materials Science and EngineeringTaizhou UniversityTaizhou 318000 State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 201899

Glycerol,as a byproduct of biodiesel production,can be used to produce a variety of high-value C_(1),C_(2),and C_(3)chemicals by electrocatalytic glycerol oxidation reaction(EGOR).Further coupling EGOR with CO_(2)reduction reaction(CO_(2)RR)or hydrogen evolution reaction(HER)in paired electrolyzers is increasingly attractive due to the reduced input energy for the simultaneous formation of value-added products on both sides of the *** review article introduces the main reaction path of EGOR and the influencing factors of the reaction conditions of *** catalysts for the highly selective formation of glyceric acid,lactic acid,tartaric acid(TA),or formic acid(FA)from EGOR are *** latest research progress on design strategies of catalysts required for these reactions was ***,the paired electrolyzers coupling EGOR with HER or electrocatalytic CO_(2)RR were ***,the challenges and prospects in the field of EGOR are pointed out to move forward with the future development of glycerol electrocatalysis.

关键词： selective oxidation electrocatalysis glycerol conversion CO_(2)reduction hydrogen evolution

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基于PLUS-InVEST模型碳储量时空演变及驱动因素分析——以纳帕海流域为例

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中国环境科学 2024年第9期44卷 5192-5201页

作者：张爽高启晨张戎宋晨珲栗忠飞西南林业大学生态与环境学院云南昆明650224 中国石油集团安全环保技术研究院有限公司北京102200

以纳帕海流域为例,利用PLUS-InVEST模型和地理探测器等方法,对过去20a和未来不同情境下该流域的土地利用变化、碳储量时空演变规律以及空间分异驱动因素进行了深入分析.研究结果表明:(1)2000~2020年,水域、建设用地面积分别增加143.98%... 详细信息

以纳帕海流域为例,利用PLUS-InVEST模型和地理探测器等方法,对过去20a和未来不同情境下该流域的土地利用变化、碳储量时空演变规律以及空间分异驱动因素进行了深入分析.研究结果表明:(1)2000~2020年,水域、建设用地面积分别增加143.98%、451.86%,耕地、草地面积分别减少61.37%、20.53%,耕地和草地主要转化为建设用地,部分草地也转化为林地;(2)纳帕海流域碳储量在过去20a中总体呈现下降趋势,共减少了0.63×10^(6)t,草地和耕地的下降和建设用地的增加是碳储量减少的主要原因;(3)与2020年相比,未来2035年不同情景下的碳储量,除自然发展和耕地保护情景外,其他情景下均呈增加趋势,碳储量总量分别为18.11×10^(6)t,18.17×10^(6)t,18.29×10^(6)和18.31×10^(6)t;(4)DEM(0.533),年均温(0.442)和NDVI(0.365)是驱动纳帕海流域碳储量空间分异的主导因子;(5)各驱动因子间的交互作用强度均强于单一因子,其中协同作用最强的是DEM与NDVI协同影响类型(0.633).研究结果可为纳帕海流域土地利用合理规划及碳汇功能提升提供数据支撑.

关键词：碳储量驱动因子 Plus-InVEST模型地理探测器纳帕海流域

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面向同频干扰环境的5G机会信号定位算法研究

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电子与信息学报 2024年第8期46卷 3136-3145页

作者：孙骞丁天语简鑫李一兵于飞哈尔滨工程大学信息与通信工程学院哈尔滨150001 工信部先进船舶通信与信息技术重点实验室哈尔滨150001 哈尔滨工程大学数学科学学院哈尔滨150001

针对全球导航卫星系统(GNSS)拒止环境下定位精度难以保证的问题,该文设计了一种基于新无线电(NR)机会信号的定位方案,并提出一种基于干扰消除子空间追踪(ICSP)算法,解决超密集网络(UDNs)和异构网络(HetNets)环境中同频干扰对定位观测量... 详细信息

针对全球导航卫星系统(GNSS)拒止环境下定位精度难以保证的问题,该文设计了一种基于新无线电(NR)机会信号的定位方案,并提出一种基于干扰消除子空间追踪(ICSP)算法,解决超密集网络(UDNs)和异构网络(HetNets)环境中同频干扰对定位观测量提取精度不足的问题。通过仿真实验和通用软件无线电外设(USRP)半实物仿真,验证了ICSP算法在复杂网络环境中优化5G机会信号接收机性能、提高定位精度上的有效性。

关键词：机会信号导航新无线电定位技术干扰消除子空间追踪同频干扰软件无线电平台

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美国海军海洋学业务体系概述

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舰船科学技术 2024年第1期46卷 180-185页

作者：张永垂胡王江邵晨李科丁亚梅国防科技大学气象海洋学院湖南长沙410073 中国人民解放军92859部队天津300061 中国人民解放军92192部队浙江宁波315100

美国海军海洋学通过对海洋环境的观测和预报,为海上军事行动提供评估和决策。本文详细梳理负责海洋学业务的美国海军气象海洋司令部及其下属的四级和五级指挥部业务体系。以美国海军海洋学业务部门参加一次军事演习为例,阐述各业务部门... 详细信息

美国海军海洋学通过对海洋环境的观测和预报,为海上军事行动提供评估和决策。本文详细梳理负责海洋学业务的美国海军气象海洋司令部及其下属的四级和五级指挥部业务体系。以美国海军海洋学业务部门参加一次军事演习为例,阐述各业务部门的职责。最后,对军事海洋学的发展提出了意见建议。

关键词：美国海军军事海洋气象海洋司令部业务体系

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Effects of ovarian response prediction index and follicle-oocyte index on pregnancy outcomes:a retrospective cohort study of 12,218 fresh transfer cycles

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Reproductive and Developmental Medicine 2024年第3期8卷 151-161页

作者： Mao Wang li Tan Yu-Bin ding Xiao-Jun Tang Tian li Xin-Yue Hu Hu-Cen Zhong Qi Wan Zhao-Hui Zhong Department of Epidemiology School of Public HealthResearch Center for Medicine and Social DevelopmentInnovation Center for Social Risk Governance in HealthChongqing Medical UniversityChongqing 400016China The Reproductive Center Chengdu Xinan Gynecology HospitalChengdu 610011China Joint International Research Laboratory of Reproduction and Development of the Ministry of Education of China School of Public HealthChongqing Medical UniversityChongqing 400016China Academician Workstation Department of PharmacologyChangsha Medical UniversityChangsha 410219China The Department of Reproductive Medicine the First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Gynecology and Obstetrics West China Second HospitalSichuan UniversityChengdu 610041China

Objective:To investigate the potential relationships among the ovarian response prediction index(ORPI),follicle-oocyte index(FOI),and clinical pregnancy rate(CPR)in women undergoing their first in vitro fertilization/intracytoplasmic sperm injectionembryo transfer(IVF/ICSI-ET)fresh cycle ***:In this retrospective cohort study,we included 12,218 women who underwent their first IVF/ICSI-ET cycle between December 2014 and January *** primary and secondary outcomes of our study were CPR and cumulative live birth rate(CLBR),*** data were divided into three groups according to the ORPI and FOI *** logistic regression analyses,stratification analyses,interaction,restricted cubic splines,and receiver operating characteristic(ROC)curves were constructed to identify the relationships among ORPI,FOI,and ***:A statistically significant increase in CPR was detected from the lowest to the highest tertile group(ORPI:48.12%,54.07%,and 53.47%,Pline analyses indicated the existence of a non-linear relationship across the entire range of FOI and *** ORPI and FOI variables had poor predictive ability(AUCliable predictors of clinical pregnancy or live birth outcomes in fresh *** and researchers should avoid using FOI and ORPI to assess pregnancy outcomes after fresh ET because of their limited relevance and predictive value.

关键词： In vitro fertilization Controlled ovarian hyperstimulation Ovarian response indexes Ovarian response prediction index Follicle-oocyte index Clinical pregnancy

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