Person reidentification (PReID) has received increasing attention due to its significant importance in intelligent video surveillance. However, most existing multiscale feature learning methods embed the extraction modules for PReID, which increases complexity of inference network and reduces timeliness. Moreover, jointly using small-scale large-scale features learn representations may weaken local detailed spatial information learning. Besides, some attentive are often suppressed when...

Abstract In recent years, the Arctic Ocean has experienced a dramatic decrease in sea ice cover, leading to enhanced turbulent mixing and eddy activity. Due scarcity of high‐resolution observations, our understanding is incomplete. Using three seismic reflection transects with high spatial resolution (∼ O (10) m) concurrent ADCP‐derived current velocity, this study identified 11 mesoscale eddies on ice‐free Chukchi Borderlands western Ocean. 82% them are intra‐halocline anticyclones. The...

Abstract The Arctic Ocean is well‐known for its large number of mesoscale eddies. We observed a lens‐shaped eddy by using two roughly perpendicular multichannel reflection seismic sections collected in the Northwind Basin, late September 2011. This first imaging water column Ocean. lines were acquired about seven days apart. had horizontal scale ∼56 km and extended from near‐surface to 300 m. thickness was ∼250 core, characterized weak reflections, has radius ∼13 km. volume core ∼89 3 ....

Patients with type 2 diabetes (T2D) may disproportionately suffer the adverse cardiovascular effects of air pollution, but relevant evidence on microvascular outcome is lacking. We aimed to examine association between pollution exposure and risk complications among patients T2D.

The expansion of protected area (PA) networks is necessary for countries and territories worldwide to conserve biodiversity, protect natural ecosystems achieve sustainable development. However, challenges remain in expanding the PA network effectively, especially regard addressing priority conservation areas balancing social development ecological conservation. These problems are addressed "Ecological Conservation Redline" (ECR), an ambitious program launched China establish a comprehensive...

Submarine landslide is a widespread marine geohazard and an important part of the global ‘source to sink’ system. In this article, multi‐channel seismic topographic data are utilized investigate distribution, calculate geomorphologic parameters, discuss genesis submarine landslides in northeastern South China Sea. study area, which can be divided into two tectonic provinces: passive continental margin province accretionary wedge province, 101 identified, with total size 2,358.22 km 2 ....

Objective To explore the clinical characteristics, renal histopathological spectrum and prognostic factors of biopsy-proven kidney diseases in elderly. Methods A retrospective observational study was conducted elderly patients who had received biopsies. Demographic, pathological data at time biopsy were collected from medical records. Follow-up records studied. Results The (≥60 years) accounted for 74 434 (17.1%) native biopsies that performed a 9-year period. In cohort included ( n = 72),...

Accurate and precise preoperative planning can provide information instrumental for performing less invasive articular fracture surgery. The purpose of this study was to determine that computer-assisted (CAPP) has the potential improve efficiency time in operating room.Sixty-four patients with proximal humeral fractures were treated using locking plates by minimally plate osteosynthesis (MIPO) CAPP. needed virtual segmentation, reduction, fixation fragments recorded. Intra interobserver...

Abstract. Shoaling internal solitary waves near the Dongsha Atoll in South China Sea dissipate their energy and enhance diapycnal mixing, which have an important impact on oceanic environment primary productivity. The enhanced mixing is patchy instantaneous. Evaluating its spatiotemporal distribution requires comprehensive observation data. Fortunately, seismic oceanography meets requirements, thanks to high spatial resolution large coverage. In this paper, we studied three reversing...

Abstract Halocline eddies transport mass and energy across the Arctic Ocean. Seismic oceanography uses multichannel seismic reflection (MCS) data to create high resolution images of water column, revealing oceanic fine structures. In this paper, we present column processed from MCS acquired during cruise MGL1112 on Chukchi Borderlands in western Combined with along‐track current velocities measured acquisition by a hull‐mounted acoustic Doppler profilers, total 23 mesoscale were detected,...

为了解青海湖浮游植物群落结构特征、时空分布格局及其关键环境驱动因子,于2020年5月(春)、8月(夏)、10月(秋)对青海湖进行系统调查,分析浮游植物群落在3个季度和4个区域(湖滨带、进水区、浅水区和深水区)间的差异。3次调查共检出浮游植物6门39属65种,物种组成以硅藻(36种,占总物种数的55.38%)、绿藻(17种,26.15%)和蓝藻(7种,10.76%)为主。4个区域间的浮游植物丰度存在显著差别,其中深水区丰度显著高于其他区域,主要原因可能在于深水区的环境较为稳定。3个季节间,浮游植物丰度和生物量具有较大差异:夏季和秋季的丰度、生物量均为春季的近10倍;浮游植物的优势类群和种类也发生了较大的变化:春季最具优势类群为硅藻门,优势种也主要隶属于硅藻门,而夏、秋两季则以蓝藻门种属占据主要优势。春季浮游植物的Pielou均匀度和Simpson多样性指数显著高于夏、秋两季,秋季Margalef指数和Shannon-Wiener多样性指数高于夏季。PERMANOVA分析和NMDS分析显示,青海湖浮游植物群落结构在不同区域和不同季节间具有显著差异。此外,dbRDA分析表明:盐度、水温...

The topic of sustainable development cities is a hotspot and focus urban research.The expansion space the most intuitive embodiment development.To explore current status trends in Kunming Yuxi, central Yunnan Province china, this study uses land use data from 2000 to 2015 analyze, spatial shape trend Yuxi using compactness index lacunarity index.results show that obvious 2005 characterized by center circle independence each space.urban 2010 relative city integration built-up area.The...

<p indent=0mm>Cold seep is an important geological process of methane fluid migration. Methane plumes at these seeps have a significant impact on the local carbon budget and may trigger massive precipitation carbonates cold-seep biome. As powerful greenhouse gas, seeping/venting from cold be released into atmosphere huge effect climate. Research flow field great significance for understanding processes their impacts global climate change. Several methods been used to observe seeps, e.g.,...

Abstract. From July to September 2009, a set of multi-channel seismic data was collected in the northern shelf area South China Sea. After processed, we observed series shoaling events on one survey lines, including high-frequency internal waves, high-mode nonlinear and shear instability. Using theoretical results from previous numerical simulations field observations, coupled with local temperature salinity data, analyzed their depth distribution, waveform characteristics, formation...

Abstract In order to solve the problem of false detection moving liquid level caused by vibration constant temperature water bath, this paper combines Type-2 Fuzzy Gaussian Mixture Model (T2-FGMM) and Markov Random Field (MRF) study a new background modeling method for detecting in dynamic scenes. The first considers output T2-FGMM as initial labeling domain MRF, then local energy with observation energy. key is combine spatiotemporal prior observation. Comparative experimental results show...

The subarctic Bering Sea, situated between the Pacific Ocean and Arctic Ocean, stands as one of world's most productive oceanic regions. While role eddies in material transport energy transfer has been extensively studied, surface have dominated these investigations owing to advancements remote sensing technology. Recently, attention shifted subsurface for their influence on enhancing mixing. However, challenges persist delineating distribution characteristics Sea due limited effectiveness...