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Towards the performance limit of catenary meta-optics via field-driven optimization

Opto-Electronic Advances 2024年第5期7卷 33-42页

作者： Siran Chen Yingli ha.Fei Zha.g Mingbo Pu ha.lin Bao Mingfeng Xu Yinghui Guo yue Shen Xiaoliang Ma Xiong Li Xiangang Luo National Key Laboratory of Optical Field Manipulation Science and Technology Chinese Academy of SciencesChengdu 610209China State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China Research Center on Vector Optical Fields Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China Department of Electrical and Computer Engineering University of California Los Angeles(UCLA)Los AngelesCalifornia 90095USA

Catenary optics enables metasurfaces with higher efficiency and wider bandwidth,and is highly anticipated in the imaging system,super-resolution lithography,and broadband ***,the periodic boundary approximation without considering aperiodic electromagnetic crosstalk poses cha.lenges for catenary optical devices to reach their performance ***,perfect control of both local geometric and propagation pha.es is realized through field-driven optimization,in which the field distribution is calculated under real boundary *** from other optimization methods requiring a mass of iterations,the proposed design method requires less tha. ten iterations to get the efficiency close to the optimal *** on the library of sha.e-optimized catenary structures,centimeter-scale devices can be designed in ten seconds,with the performance improved by ~15%.Furthermore,this method ha. the ability to extend catenary-like continuous structures to arbitrary polarization,including both linear and elliptical polarizations,which is difficult to achieve with traditional design *** provides a way for the development of catenary optics and serves as a potent tool for constructing high-performance optical devices.

关键词： catenary optics catenary structures field-driven optimization

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Optimized nitrogen application for maximizing yield and minimizing nitrogen loss in film mulching spring maize production on the Loess Plateau,China

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Journal of Integrative Agriculture 2024年第5期23卷 1671-1684页

作者： Qilong Song Jie Zha.g Fangfang Zha.g Yufang Shen Sha.cha. yue Shiqing Li State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau College of Natural Resources and EnvironmentNorthwestA&FUniversityYangling712100China Life Science Department Luoyang Normal UniversityLuoyang 471934China

Excessive use of N fertilizers(driven by high-yield goals)and its consequent environmental problems are becoming increasingly acute in agricultural systems.A 2-year field experiment was conducted to investigate the effects of three N application methods(application of solid granular urea once(OF)or twice(TF),application of solid granular urea mixed with controlled-release urea once(MF),and six N rates(0,60,120,180,240,and 300 kg N ha.(-1))on maize yield,economic benefits,N use efficiency,and soil N balance in the maize(Zea mays L.)film mulching system on the Loess Plateau,*** grain yield and economic return of maize were significantly affected by the N rate and application *** with the OF treatment,the MF treatment not only increased the maize yield(increased by 9.0-16.7%)but also improved the economic return(increased by 10.9-25.8%).The agronomic N use efficiency(NAE),N partial factor productivity(NPFP)and recovery N efficiency(NRE)were significantly improved by 19.3-66.7,9.0-16.7 and 40.2-71.5%,respectively,compared with the OF *** economic optimal N rate(EONR)of the OF,TF,and MF was 145.6,147.2,and 144.9 kg ha.(-1) in 2019,and 206.4,186.4,and 146.0 kg ha.(-1) in 2020,*** apparent soil N loss at EONR of the OF,TF,and MF were 97.1-100.5,78.5-79.3,and 50.5-68.1 kg ha.(-1),*** results support MF as a one-time N application method for delivering high yields and economic benefits,with low N input requirements within film mulching spring maize system on the Loess Plateau.

关键词： maize yield N management economic optimal N rate Loess Plateau

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Human disturbance exacerbated erosion and deposition in the karst peak-cluster depressions during the Ming and Qing dynasties

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Science China Earth Sciences 2024年第11期67卷 3550-3561页

作者： Shuai YUAN yuemin yue Xinbao Zha.G Lu WANG Lu Zha. Kelin WANG Key Laboratory for Agro-Ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences Huanjiang Observation and Research Station for Karst Ecosystems Chinese Academy of Sciences University of Chinese Academy of Sciences Institute of Mountain ha.ards and Environment Ministry of Water Resources Chinese Academy of Sciences State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences

Under the background of large-scale ecological restoration, China's southwestern karst region ha. become a hotspot of global vegetation cover “greening” in the past 20 years. However, because of geological constraints, it is difficult to restore the forest landscapes in some areas. It is urgent to understand the impacts of human disturbances during the historical period on the difficult-to-forestation rocky-desertification areas of the karst region in order to guide future afforestation. In this study, we quantified the cha.ges of specific sediment yield in typical karst depressions over the past 500 years by using137Cs,210Pb, and14C dating methods in karst depressions, and identified the main human disturbances related to historical erosion and sedimentation by combining with historical data. The results showed tha. the erosion and sedimentation of the three depressions in 1921–1963 were significantly higher tha. tha. in 1963–2021, and the sedimentation rate(0.64–1.33 cm a-1) and the specific sediment yield(2.51–13.11 t ha.1a-1) during Ming and Qing dynasties（1504–1812） were higher tha. the sedimentation rate(0.26–0.95 cm a-1) and specific sediment yield(0.95–6.99 t ha.1a-1) in the recent century（1921–2021）. Reconstruction data and literature from the Ming and Qing dynasties show an empirical link between cha.ges in population, arable land, food, forest area,and deforestation events during the same period. It was found tha. the population and arable land in Guangxi increased more tha. three-fold and the forest area decreased significantly in the 17th century after the migration of the Yao ethnic group and the introduction of maize to the region, which may be the main reason for intensifying the erosion of depressions. This study is of great significance to understanding the evolution history of rocky desertification in this region and to answer the potential of afforestation.

关键词： Karst region 14C dating Peak-cluster depressions Ethnic minirity migration Specific sediment yield

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Enamel matrix proteins in promoting saliva lubrication

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Friction 2024年第10期12卷 2298-2312页

作者： Hujun WANG yue TANG ha.nan QIU Jingyang HU Yuan SU Jing ZHENG Zhongrong ZHOU Tribology Research Institute School of Mechanical Engineering and Key Laboratory of Advanced Technologies of Materials(Ministry of Education)Southwest Jiaotong UniversityChengdu 610031China

Anti-wear performance of human enamel in the mouth is closely related to the lubrication of salivary *** is well known tha. the inorganic hydroxyapatite(ha.of the enamel plays an important role in the adsorption and pellicle-forming of salivary proteins on the enamel,but the role of enamel matrix proteins remains *** this study,the adsorption and lubrication beha.ior of salivary proteins on original,heated,and deproteinated enamel surfaces was comparatively investigated using an atomic force microscopy and nano-indentation/scratch *** with tha. on the original enamel surface,the adsorption and lubrication beha.ior of salivary proteins remains almost uncha.ged on the heated enamel surface(where the enamel matrix proteins are denatured but the size of ha.crystalline nanoparticles keeps constant)but exhibits an obvious compromise on the deproteinated enamel surface(where the enamel matrix proteins are removed and agglomeration of ha.crystallites occurs).The ha.agglomeration weakens the electrostatic interaction of enamel surfaces with salivary proteins to cause a distinct negative influence on the adsorption and pellicle-forming of salivary ***,the negative effect is confirmed with a quartz crystal microbalance with *** summary,by regulating enamel nanostructure for appropriate electrostatic interactions between salivary proteins and enamel surfaces,the enamel matrix proteins play an essential role in the adsorption and pellicle-forming of salivary proteins on human enamel,and then contribute to saliva lubrication,which provides the enamel with an anti-wear *** findings will promote and assist the design of enamel-inspired anti-wear materials.

关键词： enamel matrix proteins hydroxyapatite(ha.crystalline nanoparticles salivary proteins adsorption lubrication

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Influence of transcatheter arterial embolization on symptom distress and fatigue in liver cancer patients

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 810-818页

作者： Xu-Min Yang Xu-Yan Yang Xin-Yu Wang yue-Xia Gu Department of Nursing The First Affiliated Hospital of Naval Medical University(Changhai Hospital)Shanghai 200433China Department of Thyroid Breast and Vascular SurgeryShanghai Fourth People’s Hospital Affiliated to Tongji University School of MedicineShanghai 200434China Department of Nursing Shanghai Fourth People’s Hospital Affiliated to Tongji University School of MedicineShanghai 200434China

BACKGROUND Hepatocellular carcinoma(HCC)is a prevalent malignancy,and transcatheter arterial embolization(TAE)ha. emerged as a pivotal therapeutic ***-ever,TAE may induce symptom distress and fatigue,adversely affecting the quality of life of *** To investigate symptom distress,fatigue,and associated factors in HCC patients undergoing *** We used a cross-sectional design and purposive sampling to enroll HCC patients who underwent TAE at our institution from January to December ***-naires were utilized to collect data on symptom distress and fatigue scores from the first to the third day after *** Our study revealed a significant reduction in fatigue and symptom distress among patients after ***,fatigue,insomnia,fever and abdominal dis-tension were the most common symptoms troubling patients during the first 3 d *** status,presence of family support,physical functional status,age,and symptom distress were identified as predictors of fatigue in *** Healthcare professionals should educate HCC patients on symptom distress and INTRODUCTION Hepatocellular carcinoma(HCC)ranks as the fifth most prevalent cancer and the third leading cause of cancer-related mortality *** intervention remains the cornerstone of HCC treatment;however,due to the cha.lenges associated with early diagnosis and the lack of specific diagnostic markers,a considerable proportion of patients are diagnosed at advanced stages,rendering them ineligible for surgical *** arterial embolization(TAE)is an interventional therapeutic approach involving the insertion of a fine catheter via the femoral artery to reach the vasculature near the tumor *** aims to obstruct the arterial supply to the tumor by deploying embolic agents,thereby inducing necrosis in cancer *** procedure is suitable for patients with good liver function and overall health,particularly those with large HCCs tha. ha

关键词： Transcatheter arterial embolization Fatigue Symptom distress Hepatocellular carcinoma Influencing factors

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探究口腔颌面外科手术应用内固定系统的临床效果

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中国实用医药 2024年第14期19卷 77-80页

作者：哈月烟台市莱阳中心医院 265200

目的探究口腔颌面外科手术应用内固定系统的临床效果。方法选取50例口腔颌面外科手术患者,随机分为对照组及实验组,各25例。对照组接受传统内固定系统治疗,实验组接受可吸收内固定系统治疗。比较两组患者的临床疗效,止血时间和住院时间... 详细信息

目的探究口腔颌面外科手术应用内固定系统的临床效果。方法选取50例口腔颌面外科手术患者,随机分为对照组及实验组,各25例。对照组接受传统内固定系统治疗,实验组接受可吸收内固定系统治疗。比较两组患者的临床疗效,止血时间和住院时间,出院时的生活质量评分,感染率。结果实验组的总有效率为96.00%,高于对照组的72.00%(P<0.05)。实验组的止血时间(20.12±3.23)h和住院时间(4.34±1.23)d均短于对照组的(35.34±5.23)h、(15.67±4.23)d(P<0.05)。实验组出院时的生活质量评分(95.45±4.42)分高于对照组的(78.12±4.56)分(P<0.05)。实验组的感染率为4.00%,低于对照组的32.00%(P<0.05)。结论可吸收内固定系统极大地改善了口腔颌面外科手术患者的生活质量,提高了患者的临床效果,有助于减少患者的感染几率。

关键词：口腔颌面外科手术可吸收内固定系统临床疗效

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High-pressure capacity expansion and water injection mecha.ism and indicator curve model for fractured-vuggy carbonate reservoirs

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Petroleum 2024年第3期10卷 511-519页

作者： Lixin Chen Chengzao Jia Rujie Zha.g Ping yue Xujian Jiang Junfang Wang Zhou Su Yun Xiao Yuan Lv Institute of Unconventional Oil and Gas Science and Technology China University of Petroleum(Beijing)Beijing102249China State Key Laboratory of Reservoir Geology and Development Southwest Petroleum UniversityChengdu610500China Tarim Oilfield Company PetroChinaKorla841000China

Water injection for oil displacement is one of the most effective ways to develop fractured-vuggy carbonate *** the increase in the number of rounds of water injection,the development effect gradually *** emergence of high-pressure capacity expansion and water injection technology allows increased production from old *** high-pressure capacity expansion and water injection technology ha. been implemented in practice for nearly 10 years in fractured-vuggy reservoirs,its mecha.ism remains unclear,and the water injection curve is not *** the past,evaluating its effect could only be done by measuring the injection-production *** this study,we analyze the mecha.ism of high-pressure capacity expansion and water *** propose a fluid excha.ge index for high-pressure capacity expansion and water injection and establish a discrete model suitable for high-pressure capacity expansion and water injection curves in fractured-vuggy *** propose the following mecha.isms:replenishing energy,increasing energy,replacing energy,and releasing *** above mecha.isms can be identified by the high-pressure capacity expansion and water injection curve of the well ha.X in the ha.aha.ang Oilfield in the Tarim *** solving the basic model,the relative errors of Reservoirs I and II are found to be 1.9%and 1.5%,respectively,and the application of field examples demonstrates tha. our proposed high-pressure capacity expansion and water injection indicator curve is reasonable and *** research can provide theoretical support for high-pressure capacity expansion and water injection technology in fracture-vuggy carbonate reservoirs.

关键词： Fractured-vuggy carbonate reservoirs High-pressure capacity expansion and water injection Mecha.ism Water injection indicator curve

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Co-doped Ni_(3)S_(2) nanosheet array: A high-efficiency electrocatalyst for alkaline seawater oxidation

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Nano Research 2024年第3期17卷 1050-1055页

作者： Meng yue Xun He Shengjun Sun Yuntong Sun Moha.ed S.ha.dy Mha.ed Benaissa Alsamani A.M.Salih Jun Liu Xuping Sun College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Department of Chemistry College of ScienceKing Khalid UniversityP.O.Box 9004Abha 61413Saudi Arabia Department of Chemical Engineering College of EngineeringUniversity of Ha’ilP.O.Box 2440Ha’il 81441Saudi Arabia Department of Otolaryngology-Head&Neck Surgery West China HospitalSichuan UniversityChengdu 610041China

Developing efficient and durable oxygen evolution reaction(OER)catalysts holds great promise for green hydrogen production via seawater electrolysis,but remains a ***,we report a Co-doped Ni_(3)S_(2) nanosheet array on Ni foam(Co-Ni_(3)S_(2)/NF)as a high-efficiency OER electrocatalyst for *** alkaline conditions,Co-Ni_(3)S_(2)/NF requires an overpotential of only 368 mV to drive 100 mA·cm^(–2),superior to Ni_(3)S_(2)/NF(385 mV).Besides,it exhibits at least 50-h continuous electrolysis.

关键词： Co doping Ni_(3)S_(2)nanosheet array oxygen evolution reaction seawater electrolysis electrocatalyst

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Identification of P-type plasma membrane H^(+)-ATPases in common wheat and cha.acterization of Taha. associated with seed dormancy and germination

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Journal of Integrative Agriculture 2024年第7期23卷 2164-2177页

作者： Bingli Jiang Wei Gao Yating Jiang Shengnan Yan Jiajia Cao Litian Zha.g yue Zha.g Jie Lu Chuanxi Ma Cheng Cha.g ha.ping Zha.g Key Laboratory of Wheat Biology and Genetic Improvement on Southern Yellow&Huai River Valley Ministry of Agriculture and Rural Affairs/College of AgronomyAnhui Agricultural UniversityHefei 230036China

The P-type plasma membrane(PM)H^(+)-ATPases(ha.)are crucial for plant development,growth,and *** ha. ha.e been thoroughly cha.acterized in many different ***,despite their importance,the functions of ha. in germination and seed dormancy(SD)ha.e not been validated in ***,we identified 28 Taha.genes(Taha.-28)in common wheat,which were divided into five *** examination of gene expression in strong-and weak-SD wheat varieties led to the discovery of six candidate genes(Taha./-12/-14/-16/-18/-20).Based on a single nucleotide polymorphism(SNP)mutation(C/T)in the Taha. coding region,a CAPS marker(ha.)was developed and validated in 168 wheat varieties and 171 Chinese mini-core collections tha. exhibit diverse germination and SD *** further verified the roles of the two allelic variations of Taha. in germination and SD using wheat mutants mutagenized with ethyl metha.e sulphonate(EMS)in‘Jimai 22’and‘Jing 411’backgrounds,and in transgenic Arabidopsis ***7 appears to regulate germination and SD by mediating gibberellic acid(GA)and abscisic acid(ABA)signaling,metabolism,and *** results presented here will enable future research regarding the Taha. in wheat.

关键词： wheat P-type plasma membrane H^(+)-ATPase seed dormancy abscisic acid gibberellin

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DLP printing of BT/ha.nanocomposite ceramic scaffolds using low refractive index BT crystals

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Journal of Materiomics 2024年第5期10卷 1036-1048页

作者： Ruixuan Xue Peimei Yuan Bo Zha. Fei Jing Xuyuan Kou Wangyang yue Yan wang Dongmei Wang Galhenage Asha.Sewvandi Dengwei Hu Faculty of Chemistry and Chemical Engineering Baoji University of Arts and SciencesKey Laboratory of Functional Materials of Baoji Engineering Research Center for Titanium Based Functional Materials and DevicesUniversities of Shaanxi Province1 Hi-Tech AvenueBaoji721013ShaanxiChina Department of Materials Science and Engineering Faculty of EngineeringUniversity of MoratuwaKatubeddaSri Lanka

Biological piezoelectric materials ha.e significant potential for bone repair and energy ha.vesting owing to their excellent biocompatibility and piezoelectric *** BaTiO3/Ca10(PO4)6(OH)2(BT/ha.composite material is an outstanding representative of biological piezoelectric materials,which ha. not been individually designed using digital light processing(DLP)3D printing because of the large difference in the refractive index of its ***,in this work,double-sided-tooth plate-like BT crystals with high curvature were prepared via a hydrothermal process,and BT/ha.ceramic slurries were grinded out using dispersed intermittent ball milling scheme,and BT/ha.nanocomposite ceramic scaffolds were fabricated by DLP 3D printing *** nanostructure,dielectric properties,and piezoelectric energy ha.vesting performance of the BT/ha.nanocomposite ceramic scaffolds were *** influences of different morphologies and contents for BT on the piezoelectric potential and stress distribution were analyzed based on a multi-physics coupling finite element *** cell proliferation and adhesion abilities were investigated *** BT/ha.nanocomposite ceramic scaffolds present excellent dielectric properties,cell proliferation and adhesion abilities,and an open circuit voltage of 8 V during piezoelectric energy *** material properties and multi-physics coupling finite element analysis imply tha. the double-sided-tooth plate-like BT plays an important role for the fastness structure and electric field distribution in the BT/ha.***,this work provides a strategy for the application of the customized BT/ha.nanocomposite ceramic scaffolds in new-generation orthopedic implants and biological energy ha.vesting.

关键词： 3D printing BT/ha.nanocomposite ceramics Bio-piezoelectric scaffolds Energy ha.vesting

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