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Spatial correlation effect and influencing factors of provincial carbon emission performance in China

Shengtai Xuebao 2024年第16期44卷 7036-7050页

作者： w.ng Y. Zhen w. School of Economics and Management Chang'An University Xi'an 710064 China

At the completion of the "1+N" policy system for the "dual-carbon" target, improving carbon performance is a key to promoting balance between the environment and the economy and facilitating synergistic regional sustainability. However, the existing studies mainly focus on the measurement of carbon emission performance, influencing factors and traditional spatial scales, lacking exploration of the spatial correlation strength, network characteristics, and network conditions of various provinces and regions of carbon emission performance, and rarely examining the influencing factors of spatial network relationships from the perspective of spatial networks. Therefore, this article used the super-efficient SBM model to calculate the carbon emission performance of 30 provinces in China from 2005 to 2022. The structural characteristics of the network, transmission paths of interrelationships, network effects, and influencing factors were analyzed using the modified gravity model and social network analysis. The results are as follows: ① China' s carbon emission performance increased significantly, the spatial correlation network characteristics were obvious, manifested as a dense in the east and sparse in the west pattern with the " Beijing—Shanghai" double core actors as the center, and gradually formed a complex and compact network distribution form. ② The number of relationships within each sector of the network is significantly lower than between sectors, and the direct connection and correlation between the " net spillover" and "net beneficial" sectors were strengthened. The influence of the "bidirectional spillover" and "broker" sectors has been gradually weakening. ③ The overall and individual structural characteristics of the correlation network significantly affect carbon emission performance. increasing network density, number of relationships, degree centrality, closeness centrality, and intermediate centrality, decreasing network efficiency and network hierar

关键词： carbon emission performance influencing factor network effect social network analysis spatial association network

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Rational design of AgGaS/ZnS/ZnS quantum dots with a near-unity photoluminescence quantum yield via double shelling scheme

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Journal of Materials Science & Technology 2024年第2期169卷 235-242页

作者： H.X.Lu H.Liu Z.Z.Fu Y.Y.Chen H.Q.dai Z.Hu w.L.Zhang R.Q.Guo institute for Electric Light Sources School of Information Science and TechnologyFudan UniversityShanghai 200433China institute of Future Lighting Academy for Engineering and TechnologyFudan UniversityShanghai 200433China Yiwu Research institute of Fudan University YiwuZhejiang 322000China Zhongshan-Fudan Joint innovation Center Zhongshan 528437China

in this study,a two-step method was used to synthesize highly luminescent AgGaS/ZnS/ZnS quantum dots(QDs).in the first step,an inner ZnS shell was formed via a one-pot method,w.ich resulted in a smaller lattice mismatch between the AgGaS core and the outer ZnS shell,thereby facilitating the formation of a thick outer *** the two-step shelling process,the synthesized AgGaS/ZnS/ZnS QDs showed an excellent photoluminescence quantum yield(PLQY)of 96.4%with a peak wavelength of 508 nm,repre-senting the highest PLQY reported thus far for AgGaS ***,the effect of halogen ions in Zn precursors on the shelling process was *** was proposed that the capacity of halogen ions to coordinate with the QDs influenced the balance between Zn cation diffusion and ZnS shelling ***,the ZnS shelling reaction was dominant when ZnCl_(2)was employed,w.ile Zn cation diffusion was the dominant process under the i^(−)-rich *** work provides insights into the interfacial restructuring during the ZnS shelling and offers a clear map for the tailored synthesis of core/shell QDs.

关键词： AgGaS Quantum dots Photoluminescence Core/shell Alloyed core/shell interface

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Efficient guiding and focusing of intense laser pulse using periodic thin slits

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Matter and Radiation at Extremes 2024年第4期9卷 29-39页

作者： L.Xu T.w.Huang K.Jiang C.N.wu H.Peng P.C.hen R.Li H.B.Zhuo C.T.Zhou Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology Center for Intense Laser ApplicationTechnologyand College of Engineering PhysicsShenzhen Technology UniversityShenzhen 518118People’s Republic of China

Slits have been widely used in laser-plasma interactions as plasma optical components for generating high-harmonic light and controlling laser-driven particle ***,we propose and demonstrate that periodic thin slits can be regarded as a new breed of optical elements for efficient focusing and guiding of intense laser *** fundamental physics of intense laser interaction with thin slits is studied,and it is revealed that relativistic effects can lead to enhanced laser focusing far beyond the pure diffractive focusing *** addition,the interaction of an intense laser pulse with periodic thin slits makes it feasible to achieve multifold enhancement in both laser intensity and energy transfer efficiency compared with conventional *** results provide a novel method for manipulating ultra-intense laser pulses and should be of interest for many laser-based applications.

关键词： laser pulse intense

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Outcomes of endoscopic submucosal dissection in cirrhotic patients: First American cohort

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world Journal of Hepatology 2024年第5期16卷 784-790页

作者： Robert Luke Pecha Fares Ayoub Ankur Patel Abdullah Muftah Michael w w.ight Mai A Khalaf Mohamed O Othman Department of Gastroenterology and Hepatology UC DavisSacramentoCA 95817United States Department of Gastroenterology and Hepatology Baylor College of MedicineHoustonTX 77030United States internal Medicine Baylor College of MedicineHoustonTX 77030United States Department of Gastroenterology and Hepatology University of Texas Medical Branch at GalvestonGalvestonTX 77550United States Medical School Baylor College of MedicineHoustonTX 77030United States Department of Tropical Medicine Tanta UniversityTanta 31527Egypt

BACKGROUND Among patients with cirrhosis and pre-malignant or early malignant mucosal lesions,surgical intervention carries a much higher bleeding *** such lesions are discovered,endoscopic submucosal dissection(ESD)may offer curative therapy with lower risks than surgery and improved outcomes compared to traditional endoscopic *** To evaluate the outcomes of ESD in patients with *** Patients with cirrhosis undergoing ESD between July 2015 and August 2022 were retrospectively matched in 1:2 fashion to controls based on lesion location,size,and anticoagulation *** outcomes were compared between *** A total of 64 Lesions from 59 patients were included(16 cirrhosis,43 control).There were no differences in patient or lesion characteristics between *** bloc and curative resection was achieved in 84.21%,78.94%of the cirrhosis group and 88.89%,68.89%of controls,respectively,with no significant *** patients had significantly higher rates of intra-procedural coagulation grasper use for control of bleeding(47.37%vs 20%;P=0.02).There were otherwise no significant differences in adverse event *** the 29 patients with follow up,we found higher rates of recurrence in the cirrhosis group compared to controls(40%vs 5.26%;P=0.019),however this effect did not persist on multivariable analysis controlling for known *** ESD may be safe and effective in patients with *** procedure related outcomes were not significantly different between ***-procedural bleeding requiring use of the coagulation grasper use was expectedly higher in the cirrhosis group given the known effects of liver disease on hemostasis.

关键词： Endoscopic aubmucosal dissection Cirrhosis Advanced polypectomy intraprocedural bleeding Colon cancer

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An update on hormonal regulation of early embryo-fallopian tube interactions: insights for improvements of assisted reproductive technology outcomes

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生殖与发育医学(英文) 2024年第1期08卷 39-49页

作者： Kodithuwakku Suranga P. ng Ernest H. Y. Yeung william S. B. Lee Kai-Fai Department of Obstetrics and Gynaecology LKS Faculty of Medicine 3. The University of Hong Kong 4. Hong Kong SAR 999077 5. China

Human fallopian tubes (FTs) play important roles in the whole reproductive process. FTs are the site for the final maturation of gametes, fertilization, transport of preimplantation embryos, and early embryonic development before entering the uterus. All these functions are critical in the establishment of a successful pregnancy. when the embryo is in transit through the FT, the FT microenvironment changes through endocrine, paracrine, autocrine, and juxtacrine mechanisms w.ich involve various hormones and bioactive substances mainly from the neighboring cells. Therefore, the interactions between the embryo and the FT may be the earliest embryo-maternal communications that are essential for the establishment of pregnancy. This review critically discusses the evidence of various hormonal and bioactive mediated control of the microenvironment in the FTs during the earliest embryo-maternal communications. Moreover, we highlight existing gaps in the knowledge and the importance of exploring more of the physiology of FTs w.ich will hold the key to producing high-quality embryos for patients seekingin vitro fertilization (iVF) treatments.

关键词： Fallopian tube Embryo Maternal-embryo communication Hormonal control

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Sim-to-Real: A Performance Comparison of PPO, TD3, and SAC Reinforcement Learning Algorithms for Quadruped walking Gait Generation

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Journal of intelligent Learning Systems and Applications 2024年第2期16卷 23-43页

作者： James w. Mock Suresh S. Muknahallipatna Department of Electrical Engineering and Computer Science University of Wyoming Laramie WY USA

The performance of the state-of-the-art Deep Reinforcement algorithms such as Proximal Policy Optimization, Twin Delayed Deep Deterministic Policy Gradient, and Soft Actor-Critic for generating a quadruped walking gait in a virtual environment was presented in previous research work titled “A Comparison of PPO, TD3, and SAC Reinforcement Algorithms for Quadruped walking Gait Generation”. we demonstrated that the Soft Actor-Critic Reinforcement algorithm had the best performance generating the walking gait for a quadruped in certain instances of sensor configurations in the virtual environment. in this work, we present the performance analysis of the state-of-the-art Deep Reinforcement algorithms above for quadruped walking gait generation in a physical environment. The performance is determined in the physical environment by transfer learning augmented by real-time reinforcement learning for gait generation on a physical quadruped. The performance is analyzed on a quadruped equipped with a range of sensors such as position tracking using a stereo camera, contact sensing of each of the robot legs through force resistive sensors, and proprioceptive information of the robot body and legs using nine inertial measurement units. The performance comparison is presented using the metrics associated with the walking gait: average forward velocity (m/s), average forward velocity variance, average lateral velocity (m/s), average lateral velocity variance, and quaternion root mean square deviation. The strengths and weaknesses of each algorithm for the given task on the physical quadruped are discussed.

关键词： Reinforcement Learning Reality Gap Position Tracking Action Spaces Domain Randomization

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Effect of Spray Rails on Takeoff Performance of Amphibian Aircraft

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world Journal of Engineering and Technology 2024年第1期12卷 117-140页

作者： Soham S. Bahulekar Alberto w. Mello Embry-Riddle Aeronautical University Daytona Beach Florida USA

Amphibian aircraft have seen a rise in popularity in the recreational and utility sectors due to their ability to take off and land on both land and water, thus serving a myriad of purposes, such as aerobatics, surveillance, and firefighting. Such seaplanes must be aerodynamically and hydrodynamically efficient, particularly during the takeoff phase. Naval architects have long employed innovative techniques to optimize the performance of marine vessels, including incorporating spray rails on hulls. This research paper is dedicated to a comprehensive investigation into the potential utilization of spray rails to enhance the takeoff performance of amphibian aircraft. Several spray rail configurations obtained from naval research were simulated on a bare Seamax M22 amphibian hull to observe an approximate 10% - 25% decrease in water resistance at high speeds alongside a 3% reduction in the takeoff time. This study serves as a motivation to improve the design of the reference airplane hull and a platform for detailed investigations in the future to improve modern amphibian design.

关键词： Seaplane Spray Rails Hull Optimization Take-Off Performance

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inhibiting the phase transition of wO_(3)for highly stable aqueous electrochromic battery

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Journal of Energy Chemistry 2024年第8期95卷 86-95,I0003页

作者： Zhisheng wu Zhendong Lian Ting Ding Jielei Li Jincheng Xu Jinxiao w.ng Liangxing Zhang Bo w.ng Shi Chen Peng Xiao Hua Xu Shuang-Peng w.ng Kar w.i ng Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeMacao 999078China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020GuangdongChina Guangdong-Hong Kong-Macao Joint Laboratory for intelligent Micro-Nano Optoelectronic Technology School of Physics and Optoelectronic EngineeringFoshan UniversityFoshan 528225GuangdongChina Guangzhou New Vision Optoelectronic Technology Co. Ltd.Guangzhou 510530GuangdongChina

Aqueous electrochromic battery(ECB)has shown intense potential for achieving energy storage and saving *** tungsten oxide(wO_(3))is the most promising EC material for commercialization,the cycling stability of wO_(3)-based aqueous ECBs is currently unsatisfactory due to the repeated phase transition during the redox process and the corrosion by acidic ***,we present a titanium-tungsten oxide alloy(Ti-wO_(3))with controllable morphology and crystal phase synthesized by a facile hot injection method to overcome the *** contrast to conventional monoclinic wO_(3),the Ti-wO_(3)nanorods can stably maintain their cubic crystal phase during the redox reaction in an acidic electrolyte,thus leading to dramatically enhanced response speed and cycling stability,Specifically,when working in a well-matched hybrid Al^(3+)/Zn^(2+)aqueous electrolyte,our phasetransition-free cubic Ti-wO_(3)exhibits an ultra-high cycling stability(>20000 cycles),fast response speed(3,95 s/4,65 s for bleaching/coloring),as well as excellent discharge areal capacity of 214.5 mA h m^(-2),we further fabricate a fully complementa ry aqueous electrochromic device,for the first time,using a Ti-wO_(3)/Prussian blue device ***,the complementary ECB shows>10000 stable operation cycles,attesting to the feasibility of our Ti-wO_(3)for practical *** work validates the significance of inhibiting the phase transitions of wO_(3)during the electrochromic process for realizing highly cyclable aqueous ECB,w.ich can possibly provide a generalized design guidance for other high-quality metallic oxides for electrochemical applications.

关键词： Aqueous electrochromic battery Ti-wO_(3) Phase transition Long-term stability

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Combatting anthrax outbreaks across Nigeria's national land borders: need to optimize surveillance with epidemiological surveys

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infectious Diseases of Poverty 2024年第1期13卷 100-100页

作者： Hammed O.Mogaji Babatunde Adewale Stella i.Smith Ehimario U.igumbor Chidumebi J.idemili Andrew w.Taylor-Robinson Yale School of Public Health Yale University New Haven USA Parasitology and Epidemiology Unit Federal University Oye-Ekiti Oye-Ekiti Nigeria Department of Public Health and Epidemiology Nigerian Institute of Medical Research Lagos Nigeria Department of Molecular Biology and Biotechnology Nigerian Institute of Medical Research Lagos Nigeria Centre for infectious Disease Research Nigerian Institute of Medical Research Lagos Nigeria Department of Public Health Walter Sisulu University Mthatha South Africa institute of Health Policy Management and Evaluation University of Toronto Toronto Canada College of Health Sciences Vin University Hanoi Vietnam Center for Global Health Perelman School of Medicine University of Pennsylvania Philadelphia USA

Background Anthrax is a non-contagious zoonotic disease caused by the Gram-positive,spore-forming bac-terium Bacillus *** is common in livestock and wild animals such as cattle,goats,sheep,camels,and *** humans,anthrax may occur after contact with contaminated carcasses or animal products like milk and *** best method to prevent anthrax in people is to ensure livestock are vaccinated,w.ich significantly limits the risk of zoonotic spread to ***,the rate of vaccination of domesticated animals kept by nomadic pastoralists in west Africa is *** groups regularly cross over national boundaries with their grazing *** is a country that historically has done comparatively well to contain this public health ***,in 2023 several outbreaks of human disease appear linked to the consumption of anthrax-contaminated animal products brought into Nigeria by pastoralists from neighboring *** manifestations include skin sores or ulcers,nausea,vomiting,and *** article aims to raise awareness of recent outbreaks of anthrax in west Africa and to callfor a renewed focus on measures to combat this neglected public health concern to the *** body The imperative to pinpoint pivotal issues relating to the ongoing emergence of anthrax cases in Nigeria cannot be *** delving into the prevalence of anthrax in both livestock and human populations residing along Nigeria's borders,unraveling the genetic diversity and potential sources of *** strains,and identify-ing the primary animal host(s)responsible for transmission,we stand to enhance our understanding of this critical ***,investigating the multifaceted factors contributing to anthrax transmission,assessing community knowledge and practices,mapping common migratory routes of pastoralists,and formulating targeted interven-tion strategies tailored to the challenges of border communities,are each crucial steps towards eff

关键词： border Combat doubt

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Volumetric lattice Boltzmann method for pore-scale mass diffusionadvection process in geopolymer porous structures

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第6期16卷 2126-2136页

作者： Xiaoyu Zhang Zirui Mao Floyd w.Hilty Yulan Li Agnes Grandjean Robert Montgomery Hans-Conrad zur Loye Huidan Yu Shenyang Hu Purdue University IndianapolisIN46202USA Pacific Northwest National Laboratory RichlandWA99352USA CEA DESISECDMRCUniv.MontpellierMarcouleFrance Department of Chemistry and Biochemistry University of South CarolinaColumbiaSC29208USA

Porous materials present significant advantages for absorbing radioactive isotopes in nuclear waste *** improve absorption efficiency in nuclear waste treatment,a thorough understanding of the diffusion-advection process within porous structures is essential for material *** this study,we present advancements in the volumetric lattice Boltzmann method(VLBM)for modeling and simulating pore-scale diffusion-advection of radioactive isotopes within geopolymer porous *** structures are created using the phase field method(PFM)to precisely control pore *** our VLBM approach,we introduce a concentration field of an isotope seamlessly coupled with the velocity field and solve it by the time evolution of its particle population *** address the computational intensity inherent in the coupled lattice Boltzmann equations for velocity and concentration fields,we implement graphics processing unit(GPU)*** of the developed model involves examining the flow and diffusion fields in porous ***,good agreement is observed for both the velocity field from VLBM and multiphysics object-oriented simulation environment(MOOSE),and the concentration field from VLBM and the finite difference method(FDM).Furthermore,we investigate the effects of background flow,species diffusivity,and porosity on the diffusion-advection behavior by varying the background flow velocity,diffusion coefficient,and pore volume fraction,***,all three parameters exert an influence on the diffusion-advection *** background flow and diffusivity markedly accelerate the process due to increased advection intensity and enhanced diffusion capability,***,increasing the porosity has a less significant effect,causing a slight slowdown of the diffusion-advection process due to the expanded pore *** comprehensive parametric study provides valuable insights into the kinetics of isotope

关键词： Volumetric lattice Boltzmann method(VLBM) Phase field method(PFM) Pore-scale diffusion-advection Nuclear waste treatment Porous media flow Graphics processing unit(GPU) parallelization

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