Attention Mechanism-Based Method for Intrusion Target Recognition in Railway

The detection of foreign object intrusion is crucial for ensuring the safety of railway operations.To address challenges such as low efficiency,suboptimal detection accuracy,and slow detection speed inherent in conventional comprehensive video monitoring systems for railways,a railway foreign object intrusion recognition and detection system is conceived and implemented using edge computing and deep learning technologies.In a bid to raise detection accuracy,the convolutional block attention module(CBAM),including spatial and channel attention modules,is seamlessly integrated into the YOLOv5 model,giving rise to the CBAM-YOLOv5 model.Furthermore,the distance intersection-over-union_non-maximum suppression(DIo U_NMS)algorithm is employed in lieu of the weighted nonmaximum suppression algorithm,resulting in improved detection performance for intrusive targets.To accelerate detection speed,the model undergoes pruning based on the batch normalization(BN)layer,and Tensor RT inference acceleration techniques are employed,culminating in the successful deployment of the algorithm on edge devices.The CBAM-YOLOv5 model exhibits a notable 2.1%enhancement in detection accuracy when evaluated on a selfconstructed railway dataset,achieving 95.0%for mean average precision(m AP).Furthermore,the inference speed on edge devices attains a commendable 15 frame/s.

Optimized nonhyperbolic moveout correction equation of long-offset seismic data for TI media with an arbitrary spatial orientation

The conventional long-offset nonhyperbolic moveout equation is derived for the transverse isotropic media with a vertical symmetric axis（VTI）.It cannot be extended to the transverse isotropic media with an arbitrary spatial orientation of symmetry axis（ATI）.In this paper,we optimize a modified long-offset nonhyperbolic moveout equation for ATI media based on the conventional nonhyperbolic moveout equation and the exact analytical solution of the quartic moveout coefficient（A_4） and NMO velocity for ATI media that were derived in our previous work.Compared with the exact traveltimes of the ray-tracing algorithm for anisotropic media,this optimized equation can be used to calculate the traveltime varying with survey line azimuth in arbitrary strong or weak ATI media.It can replace the time-consuming, multi-offset,and multi-azimuth ray tracing method for forward modeling of long-offset reflection traveltimes in ATI media,which is useful to further anisotropic parameter inversion using long-offset nonhyperbolic moveout.

KPF的一次优雅转身——中国海洋石油公司总部设计

中国海洋石油公司总部是KPF于2006年在北京新完成的一个重要作品,作者从三个角度:基地一策略、形式一意义和空间一透明,对这一作品进行了简单的介绍。

DEALING WITH SPATIAL RELATIONS FOR SPATIAL OBJECTS WITH RANDOMNESS IN GIS

To design retrieval algorithm of spatial relations for spatial objects with randomness in GIS,this paper builds up the membership functions based on set theory idea,used for determination of topological spatial relations between random objects,such as between point and point,point and line or polygon,which provides theoretical basis for retrieving spatial relations between certain and random objects.Finally,this paper interprets detailed methods and steps of realizing them by means of some simple examples under the GIS’s environment.

Clinical significance of activity of ALT enzyme in patients with hepatitis C virus

AIM: To investigate serum alanine aminotransferase (ALT) levels in relation to the clinical,biochemical,ultrasonographic and histological characteristics of patients with hepatitis C virus. METHODS: Duration of disease,HCV-RNA,liver steatosis,and the hepatitis activity index (HAI) were correlated with serum ALT in 36 patients with HCV. ALT values were also investigated in 16 control subjects without any liver diseases. RESULTS: In bivariate analyses,ALT levels correlated with duration of HCV infection (P < 0.01),HCV-RNA (P < 0.05),and the HAI (P < 0.01). Among the components of the HAI,ALT concentrations were significantly associated with periportal bridging/necrosis (P < 0.01) and fibrosis (P < 0.05). In multivariate analysis,periportal bridging/ necrosis (β = 0.508; P < 0.01),duration of HCV infection (β = 0.413; P < 0.01),and HCV-RNA (β = 0.253; P < 0.05) were independently associated with ALT activity. The normal ALT activity for men and women was < 23 IU/L and < 22 IU/L,respectively. CONCLUSION: In patients with HCV,alterations in the liver tissue as reflected by ALT elevation are mainly associated with periportal bridging/necrosis,viral load and duration of disease. A cut-off value < 23 IU/L distinguished with high diagnostic accuracy healthy controls from patients with HCV.

Recent Advances in ^(19)Fluorine Magnetic Resonance Imaging with Perfluorocarbon Emulsions

The research roots of 19fluorine （19F） magnetic resonance imaging （MRI） date back over 35 years. Over that time span, 1H imaging flourished and was adopted worldwide with an endless array of applications and imaging approaches, making magnetic resonance an indispensable pillar of biomedical diagnostic imaging. For many years during this timeframe, 19F imaging research continued at a slow pace as the various attributes of the technique were explored. However, over the last decade and particularly the last several years, the pace and clinical relevance of 19F imaging has exploded. In part, this is due to advances in MRI instrumentation, ~gF/1H coil designs, and ultrafast pulse sequence development for both preclinical and clinical scanners. These achievements, coupled with interest in the molecular imaging of anatomy and physiology, and combined with a cadre of innovative agents, have brought the concept of ~gF into early clinical evaluation. In this review, we attempt to provide a slice of this rich history of research and development, with a particular focus on liquid perfluorocarbon compound-based agents.

Recognition of suspicious behavior using case-based reasoning

A novel method case-based reasoning was proposed for suspicious behavior recognition. The method is composed of three departs: human behavior decomposition, human behavior case representation and case-based reasoning. The new approach was proposed to decompose behavior into sub-behaviors that are easier to recognize using a saliency-based visual attention model. New representation of behavior was introduced, in which the sub-behavior and the associated time characteristic of sub-behavior were used to represent behavior case. In the process of case-based reasoning, apart from considering the similarity of basic sub-behaviors,order factor was proposed to measure the similarity of a time order among the sub-behaviors and span factor was used to measure the similarity of duration time of each sub-behavior, which makes the similarity calculations more rational and comprehensive.Experimental results show the effectiveness of the proposed method in comparison with other related works and can run in real-time for the recognition of suspicious behaviors.

Three-dimensional arbitrarily anisotropic modeling for time-domain airborne electromagnetic surveys

Electrically anisotropic strata are abundant in nature, so their study can help our data interpretation and our understanding of the processes of geodynamics. However, current data processing generally assumes isotropic conditions when surveying anisotropic structures, which may cause discrepancies between reality and electromagnetic data interpretation. Moreover, the anisotropic interpretation of the time-domain airborne electromagnetic （TDAEM） method is still confined to one dimensional （1D） cases, and the corresponding three-dimensional （3D） numerical simulations are still in development. In this study, we expanded the 3D TDAEM modeling of arbitrarily anisotropic media. First, through coordinate rotation of isotropic conductivity, we obtained the conductivity tensor of an arbitrary anisotropic rock. Next, we incorporated this into Maxwell＇s equations, using a regular hexahedral grid of vector finite elements to subdivide the solution area. A direct solver software package provided the solution for the sparse linear equations that resulted. Analytical solutions were used to verify the accuracy and feasibility of the algorithm. The proven model was then applied to analyze the effects of arbitrary anisotropy in 3D TDAEM via the distribution of responses and amplitude changes, which revealed that different anisotropy situations strongly affected the responses of TDAEM.

由《墨子》某些“古文”看楚簡中若干從“刀”、“斤”、“戈”字的特殊寫法

一《墨子》一書,《漢書·藝文志》'諸子略'著錄為'七十一篇',《隋書·經籍志》著錄為:'《墨子》十五卷,目一卷。'自唐宋起,其書先後亡佚十九篇,存五十三篇,成今本《墨子》之祖本。由於歷代少有治《墨》學者,故該書少有人研究。其書文字'錯譌嚴重,幾至不可句讀者'2,但亦由此,使得該書在無意間保存下大量古文字。清代學者已多留意於此。畢沅《墨子注敘》曾說:'先秦之書,字少假借,後乃偏旁相益。若本書,源流之字作‘原’,一又作‘源’;金以溢為名之字作‘益’,一又作‘鎰’;四竟之字作‘竟’,一又作‘境’。皆傳寫者亂之,非舊文。乃若‘賊’百姓之‘殺’字古文,遂而不反,合於遂亡之訓,‘關叔’之即‘管叔’,寔足以證聲音文字訓詁之學,好古者倖存其舊云。”③孫星衍《墨子注後敘》亦曰:此書“古字古言”,通“聲音訓詁之原”.

Selectivity of Attention as the Creation of Life-World

This article speaks of the creation of the ＂life-world＂ of human beings through focused attention. It treats attention as distinguishing, selective, arbitrary, and unintentional, associated with sense and the will. It considers the creation of spatial characteristics of attention ＂being-in-the-world,＂ where space is understood both as external and internal. Of the wide range of spatial characteristics of the ＂life-world,＂ I choose the first idea of the ＂distant＂ and ＂close＂ and analyze them in terms of positing attention.

A hybrid neural network model for consciousness

A new framework for consciousness is introduced based upon traditional artificial neural network models. This framework reflects explicit connections between two parts of the brain: one global working memory and distributed modular cerebral networks relating to specific brain functions. Accordingly this framework is composed of three layers, physical mnemonic layer and abstract thinking layer, which cooperate together through a recognition layer to accomplish information storage and cognition using algorithms of how these interactions contribute to consciousness: (1) the reception process whereby cerebral subsystems group distributed signals into coherent object patterns; (2) the partial recognition process whereby patterns from particular subsystems are compared or stored as knowledge; and (3) the resonant learning process whereby global workspace stably adjusts its structure to adapt to patterns’ changes. Using this framework, various sorts of human actions can be explained, leading to a general approach for analyzing brain functions.

Balanced propofol sedation administered by nonanesthesiologists:The first Italian experience

AIM:To assess the efficacy and safety of a balanced approach using midazolam in combination with propofol,administered by nonanesthesiologists,in a large series of diagnostic colonoscopies.METHODS:Consecutive patients undergoing diagnostic colonoscopy were sedated with a single dose of midazolam(0.05 mg/kg)and lowdose propofol(starter bolus of 0.5 mg/kg and repeated boluses of 10 to 20 mg).Induction time and deepest level of sedation,adverse and serious adverse events,as well as recovery times,were prospectively assessed.Cecal intubation and adenoma detection rates were also collected.RESULTS:Overall,1593 eligible patients were included.The median dose of propofol administered was 70 mg(range:40120 mg),and the median dose of midazolam was 2.3 mg(range:24 mg).Median induction time of sedation was 3 min(range:14 min),and median recovery time was 23 min(range:1040 min).A moderate level of sedation was achieved in 1561(98%) patients,whilst a deep sedation occurred in 32(2%) cases.Transient oxygen desaturation requiring further oxygen supplementation occurred in 8(0.46%;95% CI:0.2%0.8%)patients.No serious adverse event was observed.Cecal intubation and adenoma detection rates were 93.5%and 23.4%(27.8%for male and 18.5%for female,subjects),respectively.CONCLUSION:A balanced sedation protocol provided a minimalization of the dose of propofol needed to target a moderate sedation for colonoscopy,resulting in a high safety profile for nonanesthesiologist propofol sedation.

SA-FRCNN:An Improved Object Detection Method for Airport Apron Scenes

The airport apron scene contains rich contextual information about the spatial position relationship.Traditional object detectors only considered visual appearance and ignored the contextual information.In addition,the detection accuracy of some categories in the apron dataset was low.Therefore,an improved object detection method using spatial-aware features in apron scenes called SA-FRCNN is presented.The method uses graph convolutional networks to capture the relative spatial relationship between objects in the apron scene,incorporating this spatial context into feature learning.Moreover,an attention mechanism is introduced into the feature extraction process,with the goal to focus on the spatial position and key features,and distance-IoU loss is used to achieve a more accurate regression.The experimental results show that the mean average precision of the apron object detection based on SAFRCNN can reach 95.75%,and the detection effect of some hard-to-detect categories has been significantly improved.The proposed method effectively improves the detection accuracy on the apron dataset,which has a leading advantage over other methods.

Communities and the Poetic Imaginary：A Folklore Essay on the Poetry of the Wild Project

Poetry of the Wild is an ongoing artistic and literary project that according to originator Ana Flores＇ conception, invites the public ＂out for a walk＂ to freshly experience their world through word, sound, and image. Inspired by birdhouse design, these unique configurations of ＂poetry boxes＂, combining art and poetry are located in various communal open spaces. Each new project solicits a public response from us all to become catalysts for exploring our environs and questioning how a sense of place informs our consciousness. A folkloristic perspective shapes this discussion about the many variations of this collaborative and public project of poetry boxes, installed on trails, in parks, along rivers, and in library stacks over the past ten years. The primary concerns of folklore interpretation such as tradition, identity, cultural creativity, performance, and narrative analysis, are just a few of the dynamics that can be teased out from investigating a project with such interesting cultural parameters. In this context, cultural sustainability and poetic sensibility deepen our understanding of sense of place, environmental aesthetics, shrine markers, and the scope of individual and communal creative action.

The Symbols of the Fire in Georgian Folklore in Comparison With Global Experience

Fire is the world meaning symbol of wisdom, purification. Elements of place symbolism associated with fire are day time and specifically noon when the sun＇s light and heat is the greatest. The association with the sun makes fire an above space phenomena rather than a below or within space phenomena. The fireplaces have the same meaning for the houses like the sun for the earth. This paper is divided in several topics to show how the fire changes its meaning and how do peoples attitude to fire can be changed. Fire can represents in wedding ceremony, fire out of control makes chaos, destroying around everything from which arise the new life, and fire make the soul to be free from the sin. Fire, the eternal flame is the symbol of strong emotional feelings. The purpose of the paper is to give the interesting examples of fire symbols in Georgian folklore and make some similarities with world experiences. Georgian people as a part of ancient world make their own culture and in order to integrate Georgian materials in world cultural fund paper aims to make comparative work to achieve the main goal.

Analysis on Micro Creative Space Development from the Perspective of New Urbanization View Field——Taking Micro Creative Garden of Gongshu District as an Example

With the rapid developmem of new urbanization, a number of micro creative space has emerged in China. The micro creative space of Gongshu District in Hangzhou has experienced a rapid and mixed development. Considering the existing problems of those space, the following measures can help those space realize an organic urban growth： arranging the layout comprehensively, optimizing industrial agglomeration, improving the planning management quality and optimizing public platform serx, ice support. The good development of micro creative garden can promote the full flow of creative element, so as to accelerate city economic structure transformation, increase city space efficiency and promote the city innovation development.

The effects of the same target on malignant proliferation of human lung cancer cells with different expression levels of COX-2 protein

Objective: The aim of the study was to explore the effects of the same target (si-10) on lung cancer cells with different expression levels of cyclooxygenase-2 (COX-2) protein by RNAi and malignant proliferation of these cells. Methods: COX-2 was selected as the target and one siRNA expression vector with the best effect was selected and thought as the subject from three COX-2 siRNA expression vectors with human U6 promoter. The siRNA expression vector (psi-10) and the vacant vector (pEGFP) were transfected into these cells with different COX-2 expression states (801D, A549 and LTEP-A2) with lipofectamine respectively and the transfected cell strains were constructed. The change of COX-2 expression levels was examined by Western blot and RT-PCR. The effects on the proliferation of lung cancer cells were studied by cell growth curve and clonogenic assay. Results: The siRNA and U6 promoter were validated by PCR, restriction endonucleases identification and DNA sequencing and BLAST alignment and cloned into the pEGFP vector. The cell strains transfected that 801D was used as maternal line were named as 801D-p and 801D-10 respectively. The cell strains transfected that A549 was used as maternal line were named as A549-p and A549-10 respectively. The cell strains transfected that LTEP-A2 was used as maternal line were named as LTEP-A2-p and LTEP-A2-10 respectively. These cells transfected pEGFP (801D-p, A549-p and LTEP-A2-p) had the expression of GFP and 801D-10, A549-10 and LTEP-A2-10 cells had not in 24, 48 and 72 hours after transfected. The results of RT-PCR and Western blot showed the siRNA expression vector produced marked effects in two cells (A549 and LTEP-A2) expressing COX-2 and the expression of COX-2 was inhibited. But the inhibited effects were differ- ent and the expression of COX-2 was more inhibited obviously in LTEP-A2 cells than in A549 cells though the expression of COX-2 was also inhibited obviously in A549 cells. In contract to their maternal line, the levels of COX-2 mRNA of LTEP-A2-10 and A549-10 cells reduced 64.2% and 61.2% respectively; the levels of COX-2 protein reduced 60.2% and 56.2% respectively. But the levels of COX-2 mRNA and protein had not change in 801D cells not expressing COX-2. The results of cell growth curve and clonogenic assay showed the growth of LTEP-A2-10 cells slowed and the clonal formation rate reduced and the size of the colonies became small; the growth of A549-10 cells showed slow and more obviously in the cell growth curve especially. But the growth of 801D-10 cells had not obvious change. Conclusion: The si-10 target of COX-2 has different inhibition effects on lung cancer cells with different COX-2 expression levels and the different inhibition effects have different effects on cells malignant proliferation.

Effect of Leaf Removal on Grapes of Cabernet Sauvignon and Sangiovese Cultivated in Different Italian Environments

Leaf removal is a farming practice that can affect must and grape quality; it is closely related to the meteorological conditions of the year and the climate of the area. The present study aims to analyse the effects of different types of defoliation, all conducted at veraison and removing 5-6 basal leaves. The trial provided four tests： leaf removal only on the east side, only on the west side, total defoliation （both sides）, and a non-defoliated treatment （control test）. Two different cultivars, the Sangiovese and the Cabernet Sauvignon, were studied in five different Italian environments： Puegnago （BS）, Scansano （GR）, Bolgheri （LI）, Brisighella （RA）, and Montefalco （PG）. The trial was repeated four times, once per year for the successive years 2007, 2008, 2009, and 2010. The years differed mainly with regard to the total rainfall; because of the variability of the years, different results, both for the same cultivar and between the cultivars, were observed. The differences existing between these two varieties and among the different environments led to different reactions to defoliation, especially concerning the analytical parameters of musts and grapes.

Mechanism of spatial emplacement of Shanhou gold ore body in Laixi of Shandong and its prospecting significance

Through analysis of geological characteristics of the gold deposit,the shape,occurrence,and spatial distribution of ore-controlling fault plane in the Shanhou mining area were investigated,and the regularities of enrichment and emplacement of ore body were summarized. The analysis shows that the Shanhou gold deposit was controlled by NE-NNE Zhaoping fault zone; the fault gouge developed in fault zone provides a barrier to ore-bearing hydrothermal solution,and the industrial ore body is all distributed within 40 m of footwall of main fault plane. The industrial ore body is mainly enriched in the NE positions of fault where the deep dips changed to flat dips,and shows the obvious regularity of NE lateral trending with angle around 75°. The stress analysis of fault in mineralization epoch showed that the ore-controlling structure presented the characteristics of righthanded rotation inverse-fault activity in mineralization epoch,and the host space tended to occur in NE regional tension positions where the dips become flat in the strike of fault,causing emplacement of ore body. It is thought by combining equal interval distribution of deposit with spatial variation of industrial ore body and orecontrolling fault structure that the Shanhou gold deposit recurred in regularity and the non-ore interval occurred in the ore body. Meanwhile,it is predicted that the favorable target area of prospecting lies in the areas of deep main fault plane with NE strike( > 30°) and the deep dips changing to flat dips in the Shanhou mining area,and the prospecting should be emphasized. The favorable deep mineralization prospect exists in middle Beibo mining area,where is the key area for future prospecting.

Development and evaluation of the Directive and Nondirective Support Scale for Patients with Type 2 Diabetes

Objectives:This study aims to develop the Directive and Nondirective Support Scale for Patients with Type 2 Diabetes(DNSS-T2DM)to measure diabetes-specific support and patients’preference as well as evaluate the construct validity and reliability of the DNSS-T2DM.Methods:A cross-sectional study was conducted in Tongzhou District,Beijing,China from July to September 2015.A total of 474 participants who had been diagnosed as type 2 diabetes by physicians and completed the DNSS-T2DM were included.The original 11-item DNSS-T2DM contains five items on nondirective support(Items 1-5)and six items on directive support(Items 6-11).There were two parallel questions for each item with one to measure the preference for support(Preference part)and the other to measure the perception of support in reality(Reality part).The final DNSS-T2DM was determined based on the results of the exploratory factor analysis(EFA).The construct validity of the final DNSS-T2DM was evaluated by the confirmatory factor analysis(CFA).The reliability was evaluated by internal consistency with Cronbach’sαcoefficients.Results:A final 7-item DNSS-T2DM loaded on 2 factors with four items representing nondirective support and three items representing directive support was determined based on the EFA.The CFA indicated a satisfactory construct validity.The internal consistency of the 7-item DNSS-T2DM as well as the nondirective support items was satisfactory with Cronbach’sα≥7.00.70.Conclusions:Our study supported the validity and reliability of the 7-item DNSS-T2DM.Further studies on the application of the DNSS-T2DM in different settings and population are needed.