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Influence of sea-land breeze on the formation and dissipation of severe dense fog and its burst reinforcement in the Yellow Sea coastal area,China

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Science China Earth Sciences 2024年第2期67卷 432-449页

作者： ya GAO Duanyang LIU Shuqi yaN Wenjun ZHOU Hongbin WANG Fan ZU qin MEI Chuanxiang YI Ye SHENG Key Laboratory of Transportation Meteorology of China Meteorological Administration Nanjing210041China yancheng Meteorological Bureau Yancheng224000China Nanjing Joint Institute for Atmospheric Sciences Nanjing210041China Key Laboratory of Disaster Weather Chinese Academy of Meteorological SciencesBeijing100086China

Based on the global reanalysis data of the National Centers for Environmental Prediction(NCEP)/National Center for Atmospheric Research,the surface meteorological observation data,sounding data and satellite observation data,this paper comprehensively analyzes the evolution process and formation mechanism of a persistent severe dense fog process occurred on February 15–17,2015 in yancheng,eastern *** the numerical simulation experiment of Weather Research and Forecast(WRF)model,we further analyze the impact of sea-land breeze on the formation and burst reinforcement of *** show that the precipitation caused by the southwesterly airflow in front of the upper-level trough and the low-pressure inverted trough are conducive to the formation of early rain fog,while the nighttime clear radiance under the control of surface cold high and the infiltration of weak cold advection are conducive to the formation and development of later radiation-advection *** WRF model simulates the fog evolution process,which is basically consistent with the actual fog area,and the simulation results are credible to a certain *** simulation results show that the establishment of sea breeze has an advection cooling effect on the near surface layer,which is conducive to the formation and development of the inversion layer on the near surface,providing stable stratification conditions for the formation and burst reinforcement of *** one hand,the strengthening of sea breeze circulation can continuously transport water vapor to the study *** the other,the occurrence of ultra-low level jet is favorable for the accumulation of low-level water *** the same time,the inversion intensity further strengthens,which is in favor of the burst reinforcement and long-term maintenance of fog.

关键词： Radiation-advection fog Sea-land breeze Atmospheric boundary layer Fog burst reinforcement WRF model

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Nitro-oleic acid ameliorates erectile dysfunction in a streptozotocin-induced rat model of diabetes by inhibiting oxidative stress and apoptosis and activating the NO/cGMP pathway

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Asian Journal of Andrology 2024年第1期26卷 57-66页

作者： Chang-Bo Zhao Wei-Bo Chen Wen-zhen Wang Fang-Xin Gong Cui-qin Fan Ye Li Tian Lan Wen-Jing Wang Ming-zhen Yuan Department of Urology Shandong Provincial HospitalShandong UniversityJinan 250012China Department of Andrology Liaocheng People's HospitalShandong UniversityLiaocheng 252000China Department of Urology The Second Hospital of Shandong UniversityJinan 250012China Department of Physiology School of Basic Medical SciencesShandong UniversityJinan 250012China

The major vascular complications associated with diabetes make the management of diabetic mellitus erectile dysfunction(DMED)a challenging *** factors contributing to DMED include oxidative stress,nitric oxide(NO)/cyclic guanosine monophosphate(cGMP)pathway activation,and apoptosis,while nitro-oleic acid(NO,-OA)has been shown to be beneficial in treating these aspects of this ***,herein,investigated the effects and possible mechanisms of NO,-OA on erectile function as assessed in a streptozotocin-induced rat model of *** results revealed that the erectile function of DMED rats was significantly impaired compared with that of the control ***,in response to 4 weeks of NO,-OA treatment,there was an improvement in erectile *** expression of oxidative stress-related indicators was significantly increased and the NO/cGMP pathway was impaired in the DMED *** expression of proapoptotic factors was increased,while that of antiapoptotic factors was decreased in the DMED ***,the cell morphology in the cavernous tissue of the DMED group also changed ***,-OA treatment significantly reversed all these changes observed in the DMED *** conclusion,NO,-OA treatment partially improved erectile function in DMED rats through mechanisms that included inhibition of oxidative stress,activation of the NO/cGMP pathway,and a reduction in apoptosis.

关键词： apoptosis diabetic mellitus erectile dysfunction nitro-oleic acid NO/cGMP pathway oxidative stress

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Mechanism of high-energy pulsed current-assisted rolling of 08AL carbon steel ultra-thin strip

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Journal of Iron and Steel Research International 2024年第2期31卷 416-427页

作者： Zhong-kai Ren ya-nan Xu Jia-zhao Chen He Li Rui-lin Yuan zhen-hua Wang Tao Wang Xiao Liu College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment(Ministry of Education) Taiyuan University of TechnologyTaiyuan030024ShanxiChina National Key Laboratory of Metal Forming Technology and Heavy Equipment China National Heavy Machinery Research Institute Co.Ltd.Xi’an710016ShaanxiChina

To improve the plastic deformation performance of a 08AL carbon steel ultra-thin strip,a pulsed electric field was integrated into the plastic processing of the ultra-thin strip,and the effects of high-energy current on its deformation ability were ***-assisted tensile tests were employed,and the results clarified that the pulsed current could reduce the activation energy of faults and promoted dislocation slip within grains and at grain boundaries,leading to a decrease in the deformation resistance of the metal and an increase in its plastic *** the current density of 2.0 A/mm2,the yield strength,tensile strength,and elongation of the rolled sample reached 425 MPa,467 MPa,and 12.5%,*** the rolling process,it was found that the pulsed current promoted the dynamic recrystallization of the ultra-thin strip,reduced its dislocation density and deformation resistance,and promoted the coordinated deformation of the metal.

关键词： 08AL ultra-thin strip High-energy pulsed current Mechanical property Dislocation density Dynamic recrystallization

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Dielectric Constant Calculation of Poly(vinylidene fluoride)Based on Finite Field and Density Functional Theory

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Chinese Journal of Polymer Science 2024年第5期42卷 655-662,I0009页

作者： Yong-Zhi Lin Lu-Kun Feng ya-Dong Li Chao-Fan Chang Cai-zhen Zhu Ming-Liang Wang Jian Xu College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen518055China Chengdu Institute of Organic Chemistry Chinese Academy of SciencesChengdu610041China

In this study,we proposed a novel method that integrates density functional theory(DFT)with the finite field method to accurately estimate the polarizability and dielectric constant of *** approach effectively accounts for the influence of electronic and geometric conformation changed on the dielectric *** validated our method using polyethylene(PE)and polytetrafluoroethylene(PTFE)as benchmark materials,and found that it reliably predicted their dielectric ***,we explored the impact of conformation variations in poly(vinylidene fluoride)(PVDF)on its dielectric constant and *** resulting dielectric constants ofα-andγ-PVDF(3.0)showed excellent agreement with crystalline PVDF in *** findings illuminate the relationship between PVDF’s structural properties and its electrical behavior,offering valuable insights for material design and applications.

关键词： Dielectric constant PVDF Finite field DFT

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Mechanical performance of 22SiMn2TiB steel welded with lowtransformation- temperature filler wire and stainless steel filler wire

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Journal of Iron and Steel Research International 2024年第4期31卷 967-981页

作者： Zi-dong Lin Kai-jie Song zhen Sun Zi-qian Zhu Xue-feng Zhao Constantinos Goulas Wei ya Xing-hua Yu School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing 401120China Department of Design Production and Management Faculty of Engineering Technology.University of TwenteEnschede 7500 AETheNetherlands Rotterdam Additive Manufacture Fieldlab(RAMLAB) Rotterdam 3089 JWTheNetherlands

TX-80 low-transformation-temperature(LTT)welding wire was used to replace the traditional ER 307Si welding wire to realize the connection of 22SiMn2TiB armor steel in manual overlay *** previously existing issues,such as welding cracks,large welding deformation,and severe welding residual stress,were solved to ensure good strength and ductility *** particular,with the same welding conditions,TX-80 LTT wire eliminates welding *** reduces the welding deformation no matter the base pretreatment of pre-setting angle or no pre-setting *** comparison,it was found that the microstructure at the TX-80 weld is mainly composed of martensite and a small amount of retained *** contrast,the microstructure of the ER 307Si weld consists of a large amount of austenite and a small amount of skeleton-like *** variation trend of residual stress and microhardness from the weld to the base were investigated and compared with the mechanical properties of base *** TX-80 and the ER 307Si tensile samples elongation is 6.76%and 6.01%,while the ultimate tensile strengths are 877 and 667 MPa,*** average impact toughness at room temperature of the ER 307Si weld is 143.9 J/cm^(2),much higher than that of the TX-80 weld,which is only 36.7 J/cm^(2).The relationship between impact and tensile properties with microstructure species and distribution was *** addition,the fracture surface of the tensile and the impact samples was observed and *** dimples,fewer pores,larger radiation zone,and shear lips of TX-80 samples indicate better tensile ductility and worse impact toughness than those of ER 307Si weld.

关键词： Low-transformation-temperature material 22SiMn2TiB steel Welding deformation Residual stress Martensitic transformation Mechanical property

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Predicting the prognosis of hepatic arterial infusion chemotherapy in hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2380-2393页

作者： Qi-Feng Wang Zong-Wei Li Hai-Feng Zhou Kun-Zhong Zhu ya-Jing Wang ya-qin Wang Yue-Wei Zhang Department of Hepatobiliary Pancreatic Center Beijing Tsinghua Changgung Hospital Affiliated to Tsinghua UniversityBeijing 102218China Department of Hepatobiliary and Pancreatic Surgery Qinghai University Affiliated HospitalXining 810000Qinghai ProvinceChina

Hepatic artery infusion chemotherapy(HAIC)has good clinical efficacy in the treatment of advanced hepatocellular carcinoma(HCC);however,its efficacy *** review summarized the ability of various markers to predict the efficacy of HAIC and provided a reference for clinical *** of October 25,2023,51 articles have been retrieved based on keyword predictions and *** eligible articles were selected for inclusion in this *** literature analysis found that methods used to predict the efficacy of HAIC include serological testing,gene testing,and imaging *** above indicators and their combined forms showed excellent predictive effects in retrospective *** review summarized the strategies currently used to predict the efficacy of HAIC in middle and advanced HCC,analyzed each marker's ability to predict HAIC efficacy,and provided a reference for the clinical application of the prediction system.

关键词： Hepatocellular carcinoma Hepatic artery infusion chemotherapy Prediction Prognosis Imaging Biomarkers Genomics

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Screening of morphology-related genes based on predatorinduced transcriptome sequencing and the functional analysis of Dagcut gene in Daphnia galeata

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Current Zoology 2024年第4期70卷 440-452页

作者： ya-qin Cao ya-Jie Zhao Hui-Ying Qi Jin-Fei Huang Fu-Cheng Zhu Wen-Ping Wang Dao-Gui Deng School of Life Science Huaibei Normal UniversityHuaibei 235000AnhuiChina

High fish predation pressure can trigger"induced defense"in Daphnia species,resulting in phenotypic plasticity in morphology,behavior,or life-history *** molecular mechanisms of defense morphogenesis(e.g.,the tail spine and helmet)in Daphnia remain *** the pres-ent study,the tail spine,helmet,and body of Daphnia galeata under fish and non-fish kairomones conditions were collected for transcriptome analysis.A total of 24 candidate genes related to the morphological defense of *** were identified,including 2 trypsin,one cuticle protein,1 C1qDC protein,and 2 ferritin *** function of the Dagcut gene(*** cuticle protein gene)in relation to tail spine morphology was assessed using RNA interference(RNAi).Compared with the EGFP(Enhanced green fluorescent protein)treatment,after RNAi,the expression levels of the Dagcut gene(*** cuticle protein gene)showed a significant ***,the tail spines of the offspring pro-duced by *** after RNAi of the Dagcut gene appeared curved during the *** whole-mount in situ hybridization,a clear signal site was detected on the tail spine of *** before RNAi which disappeared after *** results suggest that the Dagcut gene may play an important role in tail spine formation of ***,and will provide a theoretical basis for studying the molecular mechanisms of the morpho-logical plasticityin cladocera inthefuture.

关键词： Dagcut Daphnia galeata fish kairomones RNAi tail spine transcriptome sequencing.

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Photo-Responsive Carbon Capture over Metalloporphyrin-C_(60) Metal-Organic Frameworks via Charge-Transfer

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Research 2024年第3期2023卷 233-241页

作者： Shi-Chao Qi zhen Sun Zhi-Hui yang Yun-Jie Zhao Jia-Xin Li Xiao-qin Liu Lin-Bing Sun State Key Laboratory of Materials-Oriented Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China.

Great efforts have been devoted to the study of photo-responsive adsorption,but its current methodology largely depends on the well-defined photochromic units and their photo-driven molecular ***,a methodology to fabricate nondeforming photo-responsive sorbents is successfully *** C_(60)-fullerene doping in metalloporphyrin metal-organic frameworks(PCN-M,M=Fe,Co,or Ni)and intensively interacting with the metalloporphyrin sites,effective charge-transfer can be achieved over the metalloporphyrin-C_(60) architectures once excited by the light at 350 to 780 *** electron density distribution and the resultant adsorption activity are thus changed by excited states,which are also stable enough to meet the timescale of microscopic adsorption *** charge-transfer over Co(II)-porphyrin-C_(60) is proved to be more efficient than the Fe(II)-and Ni(II)-porphyrin-C_(60) sites,as well as than all the metalloporphyrin sites,so the CO_(2) adsorption capacity(CAC;at 0°C and 1 bar)over the C_(60)-doped PCN-Co can be largely improved from 2.05 mmol g^(−1) in the darkness to 2.69 mmol g−1 with light,increased by 31%,in contrast to photo-irresponsive CAC over all C_(60)-undoped PCN-M sorbents and only the photo-loss CAC over C_(60).

关键词： porphyrin adsorption excited

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Robust textile-based spoof plasmonic frequency scanning antenna for on-body IoT applications

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Science China(Information Sciences) 2024年第8期67卷 269-284页

作者： Zhao-Min CHEN Jun-Lin ZHAN Hao CHEN ya LI Hongjun HE Wu yaNG zhen-Guo LIU Wei-Bing LU State Key Lab of Millimeter Waves School of Information Science and EngineeringSoutheast University Center for Flexible RF Technology Frontiers Science Center for Mobile Information Communication and SecuritySoutheast University Future Research Laboratory China Mobile Research Institute Purple Mountain Laboratories

Securing a comfortable, wearable compact frequency beam scanning antenna(FBSA) with robustness to deformation, low specific absorption rate(SAR), and good coverage of the surrounding environment for Internet of Things(IoT) applications, such as on-body navigation and wireless communication is an emerging challenge. In this work, a robust textile-based spoof plasmonic frequency scanning antenna utilizing higher-order modes is presented, which is also robust to deformation caused by the activities of the human body. The innovative design of the element ensures the high-efficiency transmission of the fundamental mode of spoof surface plasmon polaritons(SSPP) structure, providing the potential of being a multifunctional composite device in the compact on-body network. Besides, an artificial magnetic conductor(AMC) is designed underneath the SSPP structure, obtaining a low SAR value(0.113 W/kg), which ensures the safety of users. As a practical realization of this concept, a textile-based spoof plasmonic antenna was fabricated in the microwave regime and the performed experimental results show the proposed antenna has a single-beam radiation characteristic with a 70° beam scanning angle range when the frequency is 4.7–6.0 GHz with a high average realized gain of 13.15 dBi. And it still maintains a steady performance when faced with structure deformation, which proves its robustness. Wireless communication quality experiments are performed to demonstrate the proposed antenna can measure the angles of targets and realize wireless signal transmission to specific targets as the frequency varies, it may find great potential in the field of on-body IoT applications.

关键词： frequency beam scanning antenna (FBSA) Internet of Things (IoT) on-body communication spoof surface plasmon polaritons (SSPP) textile-based antenna

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Covalent organic framework-based solid-state electrolytes for advanced batteries

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Science China Chemistry 2024年

作者： Desheng Feng zhen qin Yumei Ren Yuxi Xu School of Materials Science and Engineering Zhengzhou University of Aeronautics School of Engineering Westlake University

The emergence of solid-state batteries (SSBs) has generated significant interest in the field of energy storage, primarily due to their advantages such as high safety, high energy density and long lifetime. Solid state electrolytes (SSEs) play a crucial role in SSBs, which not only affects the ion transport efficiency, but also relates to the overall performance and stability of the *** recent years, SSEs based on covalent organic frameworks (COFs) have become a research focus in the battery field because of their unique structural characteristics and excellent performance. This review aims to provide an overview of the application and latest progress of COF-based SSEs in the field of advanced batteries. Firstly, the structural features of COFs and their advantages as SSEs are briefly introduced, followed by a summary of the types of COF-based SSEs (including neutral COF-based SSEs and ionic COF-based SSEs). The latest research progress in lithium ion batteries (LIBs), lithium metal batteries (LMBs), proton exchange membrane fuel cells (PEMFCs) and other advanced batteries recently is also discussed. Finally, we summarize and outlook the current research status, the challenges faced in practical application, the future research directions and application prospects of COF-based SSEs.

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