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中华医学杂志(英文版) 2025年第2期138卷 2024 Sep 19页

作者： Fu Wenhai Jiang Yu Ye Wenjun Zhong Ran Xiong shan li Jianfu li Caichen He Jianxing liang Wenhua Department of Thoracic Surgery and Oncology The First Affiliated Hospital of Guangzhou Medical University Guangzhou Guangdong China State Key Laboratory of Respiratory Disease Guangzhou Guangdong China National Clinical Research Center for Respiratory Disease Guangzhou Guangdong China Guangzhou Institute of Respiratory Health Guangzhou Guangdong China

BEV-Locator:an end-to-end visual semantic localization network using multi-view images

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Science China(Information Sciences) 2025年第2期68卷 134-150页

作者： Zhihuang ZHANG Meng XU Wenqiang zhou Tao PENG liang li Stefan POSLAD School of Vehicle and Mobility Tsinghua University School of Information Technology & Management University of International Business and Economics Qcraft Inc. School of Electronic Engineering and Computer Science Queen Mary University of London

Accurate localization ability is fundamental in autonomous driving. Traditional visual localization frameworks approach the semantic map-matching problem with geometric models, which rely on complex parameter tuning and thus hinder large-scale deployment. In this paper, we propose BEV-Locator: an end-to-end visual semantic localization neural network using multi-view camera images. Specifically, a visual BEV(bird-eye-view) encoder extracts and flattens the multi-view images into BEV space. While the semantic map features are structurally embedded as map query sequences. Then a cross-model transformer associates the BEV features and semantic map queries. The localization information of ego-car is recursively queried out by cross-attention modules. Finally, the ego pose can be inferred by decoding the transformer outputs. This end-to-end model speaks to its broad applicability across different driving environments, including high-speed scenarios. We evaluate the proposed method in large-scale nuScenes and Qcraft datasets. The experimental results show that the BEV-Locator is capable of estimating the vehicle poses under versatile scenarios, which effectively associates the cross-model information from multi-view images and global semantic maps. The experiments report satisfactory accuracy with mean absolute errors of 0.052 m, 0.135 m and 0.251° in lateral, longitudinal translation and heading angle degree.

关键词： visual localization semantic map bird-eye-view transformer pose estimation

Efficient OpenMP Based Z-curve Encoding and Decoding Algorithms

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Computers, Materials & Continua 2025年第1期82卷 1313-1327页

作者： Zicheng zhou Shaowen Sun Teng liang Mengjuan li Fengling Xia School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China Faculty of Information Engineering and Automation Kunming University of Science and TechnologyKunming650500China School of Communications Information Engineering Yunnan Communications Vocational and Technical CollegeKunming650500China library Yunnan Normal UniversityKunming650500China Faculty of Civil Aviation and Aeronautics Kunming University of Science and TechnologyKunming650500China

Z-curve’s encoding and decoding algorithms are primely important in many Z-curve-based *** bit interleaving algorithm is the current state-of-the-art algorithm for encoding and decoding *** simple,its efficiency is hindered by the step-by-step coordinate shifting and bitwise *** tackle this problem,we first propose the efficient encoding algorithm LTFe and the corresponding decoding algorithm LTFd,which adopt two optimization methods to boost the algorithm’s efficiency:1)we design efficient lookup tables(LT)that convert encoding and decoding operations into table-lookup operations;2)we design a bit detection mechanism that skips partial order of a coordinate or a Z-value with consecutive 0s in the front,avoiding unnecessary iterative *** propose order-parallel and point-parallel OpenMP-based algorithms to exploit the modern multi-core *** results on discrete,skewed,and real datasets indicate that our point-parallel algorithms can be up to 12.6×faster than the existing algorithms.

关键词： Z-curve lookup table OpenMP bit detection mechanism

Recent advances in metal-loaded MOFs photocatalysts:From single atom,cluster to nanoparticle

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Chinese Chemical Letters 2025年第1期36卷 68-79页

作者： Shenglan zhou Haijian li Hongyi Gao Ang li Tian li shanshan Cheng Jingjing Wang Jitti Kasemchainan Jianhua Yi Fengqi Zhao Wengang Qu 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 100083China National Key Laboratory of Energetic Materials Xi’an Modern Chemistry Research InstituteXi’an 710065China Shunde Innovation School University of Science and Technology BeijingShunde 528399China School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China Department of Chemical Technology Chulalongkorn UniversityBangkok 10330Thailand

Photocatalysis is widely regarded as a highly promising sustainable technique for addressing the challenges posed by environmental pollution and energy *** recent years,metal-loaded MOFs has become a rising star within the domain of photocatalysis due to its high specific surface area and porosity,adjustable structure,diverse and abundant catalytic components,which has exhibited excellent photocatalytic activity and exhibit great potential in a range of *** this paper,the principles for evaluating the photocatalytic performance of MOFs-based materials were firstly introduced,and some typical examples were also listed *** with this,particular emphasis is paid to the main factors affecting the photocatalytic performance of metal-loaded *** the synthesis and design strategies of MOFs loaded metal entities of varying sizes(single atoms,nanoclusters,and nanoparticles),and their applications in photocatalytic CO_(2)reduction,hydrogen production,photooxidation and photocatalytic hydrogenation were summarized and ***,the opportunities and challenges faced in this kind of MOFs-based composites were analyzed from different *** report is expected to help researchers design and develop high-performance MOFs-based photocatalytic materials.

关键词： Metal-loaded MOFs Photocatalysis Single atom catalysts Nanoclusters Nanoparticles

Comprehensive recovery of rare earth elements and gypsum from phosphogypsum:A wastewater free process combining gravity separation and hydrometallurgy

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Journal of Rare Earths 2025年第2期43卷 362-370页

作者： Jialin Qing Dapeng Zhao li Zeng Guiqing Zhang liang zhou Jiawei Du Qinggang li Zuoying Cao Shengxi Wu School of Metallurgy and Environment Central South University Key Laboratory of Metallurgical Separation Science and Engineering of Non-ferrous Metals Industry Central South University National Engineering Laboratory for Efficient Utilization of Refractory Non-ferrous Metals Resources Central South University

Comprehensive utilization of phosphogypsum（PG） has attracted much attention,especially for the recovery of rare earth elements（REEs） and gypsum due to the issues of stockpile,environmental pollution,and waste of associated *** utilization methods suffered the issues of low REEs leaching efficiency,huge amount of CaSO4saturated wastewater and high recovery *** solve these issues,this study investigated the occurrence of REEs in PG and the leaching of *** results show that REEs in PG are in the forms of（1） REEs mineral inclusions,（2） REEs isomorphous substitution of Ca2+in gypsum lattice,（3） dispersed soluble REEs *** leaching results demonstrate that（1） the dissolution of gypsum matrix is the control factor of REEs leaching;（2） H2SO4is a promising leachant considering the recycle of leachate;（3） the gypsum matrix suffers a recrystallization during the acid leaching and releases the soluble REEs from PG to aqueous *** the recovery of the undissolved REEs mineral inclusions,wet sieving concentrated 37.1 wt% of the REEs in a 10.7 wt% mass,increasing REEs content from 309 to 1071 ***,a green process combining gravity separation and hydrometallurgy is *** process owns the merits of wastewater free,considerable REEs recovery（about 10% increase compared with traditional processes）,excellent gypsum purification（>95 wt%CaSO4·2H2O,with lical leaching）.

关键词： Gravity separation Phosphogypsum Rare earths Recrystallization reinforcement Wastewater free

Genome-wide gene expressional analysis of two indica rice varieties RH and TN1 under brown planthopper infestation

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Genome-wide gene expressional analysis of two indica rice va...

Pressure induced superconducting dome in LaNiGa_(2)

第十三届全国植物基因组学大会

作者： Changyan li,shan Jiang,zhou Fei,Yongjun lin,Hao Chen~* Huazhong Agricultural University,Wuhan 430070,China

RH(Rathu Heenati) is a rice cultivar with high resistance to several biotypes of brown planthopper(Nilaparvata lugens Stal,BPH);while another rice cultivar TN1 (Taichung Native 1) is highly susceptible to all biotypes of *** reveal molecular mechanism of resistant difference between RH and TN1,genome-wide gene expressional profiling of these two rice varieties at 6 h and 24 h after BPH infestation

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 161-166页

作者： Yanan Zhang Dajun Su Zhaoyang shan Yunshu Shi Rui li Jinyu Wu Zihan Yang Kaixin Ye Fei Zhang Yanchun li Xiaodong li Chao Cao Valentin Taufour lin Jiao Michael Smidman Huiqiu Yuan Center for Correlated Matter and School of Physics Zhejiang UniversityHangzhou 310058China Department of Physics and Astronomy University of CaliforniaDavis 95616USA Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Silicon and Advanced Semiconductor Materials Zhejiang UniversityHangzhou 310058China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093China

LaNiGa_(2)is a time-reversal symmetry breaking superconductor with symmetry protected band crossings,making it an ideal platform for investigating the interplay between unconventional superconductivity and electronic structure *** we present a transport study of LaNiGa_(2)under *** application of pressure to LaNiGa_(2)induces a significant enhancement of the superconducting transition temperature Tcat a pressure of 7 *** contrast,powder X-ray diffraction(XRD)results show no evidence of structural phase transitions up to 26.3 ***,the ratio of band diffusivity shows a sudden increase at around 7 GPa,suggesting possible pressure-induced changes in the electronic structure that are closely linked to the evolution of superconductivity.

关键词： high pressure superconductivity time-reversal breaking

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Ultralow frequency waves in the South Atlantic anomaly:Application of FY-3E observations

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Science China Earth Sciences 2025年第3期 943-952页

作者： li li Qiugang ZONG Xuzhi zhou Ying liU Robert RANKIN shan WANG Yongfu WANG Xiangqian YU Jie REN Zikang XIE Hong ZOU Yuguang YE Chao YUE School of Earth and Space Sciences Peking University School of Geophysics and Information Technology China University of Geosciences (Beijing) State Key Laboratory of Lunar and Planetary Science Macau University of Science and Technology Department of Physics University of Alberta

On 5 July 2021, the China FY-3E satellite was successfully launched, equipped with instruments to measure ultralow frequency waves(ULF) and charged particle populations deep within the magnetosphere. In this study, we report two ULF wave events observed by the FY-3E satellite, which are closely associated with magnetospheric substorms, in conjunction with observations from the Swarm satellite. We noticed a significant similarity between the ULF waves recorded by FY-3E and Swarm, indicating that these satellites captured the same wave events. The presence of a 180° phase shift across L shells and an oscillating field aligned Poynting flux suggest that the observed ULF waves exhibit characteristics of field line resonance(FLR).This work also characterizes essential differences in the behavior of ULF pulsations affected by the South Atlantic anomaly(SAA) in comparison to a conjugate region outside. Wave packets in the SAA region exhibit higher amplitudes than the pulsations in the northern hemisphere. This difference is likely influenced by the north-south asymmetry of the geomagnetic field and ionospheric conductivities, which, in turn, control the standing wave structure along the field line.

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A novel method for simultaneous measurement of^(222)Rn and^(220)Rn progeny concentrations measured by an alpha spectrometer

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Nuclear Science and Techniques 2025年第1期36卷 127-139页

作者： Zhong-Kai Fan Jia-Le Sun Hao-Xuan li Xiang-Ming Cai Hui Yang Shou-Kang Qiu Yan-liang Tan Jian shan School of Nuclear Science and Technology University of South ChinaHengyang 421001China College of Physics and Electronic Engineering Hengyang Normal UniversityHengyang 421008China

The accumulation of^(222)Rn and^(220)Rn progeny in poorly ventilated environments poses the risk of natural radiation exposure to the public.A previous study indicated that satisfactory results in determining the^(222)Rn and^(220)Rn progeny concentrations by measuring the total alpha counts at five time intervals within 560 min should be expected only in the case of high progeny concentrations in *** complete the measurement within a relatively short period and adapt it for simultaneous measurements at comparatively lower^(222)Rn and^(220)Rn progeny concentrations,a novel mathematical model was proposed based on the radioactive decay *** model employs a nonlinear fitting method to distinguish nuclides with overlapping spectra by utilizing the alpha particle counts of non-overlapping spectra within consecutive measurement cycles to obtain the concentrations of^(222)Rn and^(220)Rn progeny in *** verification experiments were conducted using an alpha *** experimental results demonstrate that the concentrations of^(222)Rn and^(220)Rn progeny calculated by the new method align more closely with the actual circumstances than those calculated by the total count method,and their relative uncertainties are all within±16%.Furthermore,the measurement time was reduced to 90 min,representing an acceleration of 84%.The improved capability of the new method in distinguishing alpha particles with similar energies emitted from ^(218)Po and^(212)Bi,both approximately 6 MeV,contributed to realizing more accurate *** proposed method has the potential advantage of measuring relatively low concentrations of^(222)Rn and^(220)Rn progeny in air more quickly via air filtration.

关键词： ^(222)Rn ^(220)Rn Progeny concentration Nonlinear fitting method Alpha spectrometer

Evaluating the effectiveness of immediate *** thoracic endovascular aortic repair for blunt thoracic aortic injury

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Chinese Journal of Traumatology 2025年第1期28卷 22-28页

作者： Zhaohui Hua Baoning zhou Wenhao Xue Zhibin zhou Jintao shan Lei Xia Yunpeng Luo Yiming Chai Zhen li Department of Endovascular Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou450052China Department of Vascular Surgery Nanchang University Second Affiliated HospitalNanchang330006China

Purpose:To evaluate the relationship between the timing of thoracic endovascular aortic repair(TEVAR)for blunt thoracic aortic injury(BTAI)and ***:This is a single-center retrospective cohort *** who received TEVAR for BTAI at our institution from October 2016 to September 2023 were divided into 2 categories depending on the injury severity score(ISS)(≤25 vs.>25)and when the TEVAR was performed for BTAI(within 24 h *** 24 h),*** analysis included all patients who received TEVAR treatment after being diagnosed with BTAI through whole-body CT *** treated with open repair and non-operative management were *** propensity-score matching for various factors,outcomes during hospitalization and follow-up were *** factors included demographics,comorbidities,concomitant injuries,cause and location of aortic injury,Glasgow coma scale score,society for vascular surgery grading,hemoglobin concentration,creatinine concentration,shock,systolic blood pressure,and heart rate at *** comparison was conducted using SPSS 26 *** variables were presented as either the mean±standard deviation or median(Q1,Q3),and were compared using either the t-test or the Mann-Whitney U *** variables were expressed as n(%),and comparisons were made between the 2 groups using theχ2 test or Fisher’s exact *** significance was defined as a 2-sided p25 and 32(29.1%)receiving immediate *** perioperative overall mortality rate in the group with ISS>25 was significantly higher than that in the group with ISS≤25(11(16.9%)vs.2(4.4%),p<0.001).Upon admission,the elective group exhibited a notably higher Glasgow coma scale score(median(Q1,Q3))compared to the immediate group(15(12,15)vs.13.5(9,15),p=0.039),while the creatinine concentration(median(Q1,Q3))at admission was signif

关键词： Blunt aortic injury Thoracic endovascular aortic repair Timing of treatment