The mechanism of corrosion is mainly sustained by an electrochemical process, in which anodic and cathodic reactions take place, keeping their kinetics alive by electrons and ions fluxes. Several specific conditions c...The mechanism of corrosion is mainly sustained by an electrochemical process, in which anodic and cathodic reactions take place, keeping their kinetics alive by electrons and ions fluxes. Several specific conditions can accelerate corrosion processes. When studying anticorrosive coatings, one of them is the contamination of metallic surface by soluble salts prior to coating, leading to premature failure of the paint system due to corrosion between the metallic surface and the coating. So the surface preparation step prior to coating is a procedure of great importance to the coating anticorrosive performance. The aim of this step is to clean the surface by removing visible and non-visible contaminants. Usually, wet abrasive blasting methods are the most efficient ones to achieve the latter objective, because they may clean the surface, create a surface roughness and also remove the non-visible contaminants, as they use water as a media. On the other hand, evaporation of water after blasting may create flash rust and to avoid this, it is common to use corrosion inhibitors in the water of wet blasting methods. In this paper, the use of sodium tetraborate (borax) as a corrosion inhibitor in wet abrasive blasting is discussed. Electrochemical measurements and mass loss tests show that a borax content of 1% in a saline solution has the best inhibitory action over carbon steel and zinc surfaces, allowing postponing for the painting step some time. However, residual borax left on the surface generated blistering and corrosion under coating, during accelerated corrosion test in a humidity condensation chamber. Electrochemical impedance spectroscopy confirmed that borax accelerated the permeation of water through the coating, downgrading the anticorrosive performance of the paint system.展开更多
Many cable-stayed bridges have been built in the world in the past decades,and cable-stayed structures have been adopted in many large constructions.The cable painting robot is safe and economically efficient for stay...Many cable-stayed bridges have been built in the world in the past decades,and cable-stayed structures have been adopted in many large constructions.The cable painting robot is safe and economically efficient for stay cable maintenance.In order to satisfy the need for spraying cables in high attitude,an automatic cable spray system for cable painting robots is presented in this paper.Using the β distribution,paint thickness distribution on a cylinder surface is modeled.The spray gun's number,angle and movement are analyzed to get coat evenness.Then a robotic spray system engineering prototype has been developed,which includes a cable electric running climbing base,a spray cover,four airless spray guns and a pressurized paint container.Experiments indicate that four airless spray guns can guarantee good coat quality for general stay cables.The field tests have been successfully conducted on Nanpu Bridge,Shanghai.展开更多
Background: Despite art therapy has been widely used in cancer population to improve their physical and mental health, painting therapy, as one form of art therapy, is seldom applied to adult cancer patients independe...Background: Despite art therapy has been widely used in cancer population to improve their physical and mental health, painting therapy, as one form of art therapy, is seldom applied to adult cancer patients independently. Therefore, how painting therapy affects adult cancer patients’ health outcomes needed to be explored sufficiently. Objectives: The purpose of this review was to assess and synthesize the latest evidence of painting therapy concerning adult cancer patients, and to provide some inspiration for clinical staff. Methods: A literature research of PubMed, Web of Science, Cochrane Library, EMBASE, CINAHL, PsychoInfo, Psydex, CENTRAL, Google Scholar, British Library, CNKI, Wanfang, CQVIP electronic databases were undertaken with the following key words: art therapy, painting, drawing, cancer, neoplasm, tumor, carcinoma and oncology. A narrative synthesis was used according to PRISMA and the quality of study was assessed using acritical assessment tool. Results: Eleven papers reporting nine different research projects met the inclusion criteria. Generally speaking, painting therapy positively affected health outcomes. The impacts on patients include improvements in quality of life, coping with disease, mental health and somatic symptoms. However, inconsistency still exists. Three studies failed to show positive effects of painting therapy on post-traumatic growth, distress and coping behavior in participants. Conclusion: Robust evidence was found in rehabilitation of patients with various types of cancer. Painting therapy evidently affected cancer patients in a positive direction. However, the application of painting therapy to cancer patients needs to be explored further due to few studies on this topic.展开更多
The present article reports the application of zinc ethyl silicate paint and the use of internal and external paint schemes on carbon steel spheres for the storage of liquefied petroleum gas. The new paint scheme elim...The present article reports the application of zinc ethyl silicate paint and the use of internal and external paint schemes on carbon steel spheres for the storage of liquefied petroleum gas. The new paint scheme eliminates the steps of blasting in the field and minimizes the collection of waste generated and the environmental impact, reducing the service time onsite and therefore providing a productivity gain and better health and cleanliness at work. The results were obtained through test runs and qualified in bodies-of-proof made with the same characteristics as the sphere, that is, using the same material (carbon steel), thickness, and mechanical formation and subject to the same conditions of design and implementation process. The paint scheme was approved, qualified, and committed to the supplier’s warranty with the paint manufacturer and assembler of the storage spheres for liquefied petroleum gas.展开更多
William Somerset Maugham was one of the most popular British writers of his era.Many of his works are closely related to China,among which is the famous novel The Painted Veil.This novel narrates the love story betwee...William Somerset Maugham was one of the most popular British writers of his era.Many of his works are closely related to China,among which is the famous novel The Painted Veil.This novel narrates the love story between the heroine Kitty,an attractive but vainglorious middle-class lady,and the intelligent bacteriologist Walter Fane.This thesis aims at exploring the hetero image of China in The Painted Veil from the perspective of imagology.It comprises four chapters.Chapter one introduces the definition of the terms“Image”and“hetero image”.Chapter two analyzes Maugham’s diversified concepts of China:one is the positive and good image,and the other is the negative image.Chapter three illustrates the specific images of China revealed in the novel The Painted Veil,on both positive and negative aspects.After the exploration of the image of China from the perspective of imagology,we can sum up that actually,the image of China in Maugham’s eyes indicated in The Painted Veil is not the real China.It is a combination of the real world observed by Maugham and the imaginative world conceived by him influenced by his own specific culture and society.展开更多
At first glance,Lhapa Tsering appears modestly dressed,A:almost unassumingyet an artistic air surrounds him.A man of few words,his eyes light up with unmistakable passion the moment painting enters the conversation.Hi...At first glance,Lhapa Tsering appears modestly dressed,A:almost unassumingyet an artistic air surrounds him.A man of few words,his eyes light up with unmistakable passion the moment painting enters the conversation.His fingers lightly graze the paintbrush.展开更多
Through the analysis of the actual situation and process of painting industrial steel components in Hechang Company,we have modified the mixing ratio of paint,thinner,and curing agent.Additionally,we have effectively ...Through the analysis of the actual situation and process of painting industrial steel components in Hechang Company,we have modified the mixing ratio of paint,thinner,and curing agent.Additionally,we have effectively adjusted the drying time of various paint types under different seasons and temperatures.Eventually,a painting solution suitable for our company has been developed.According to this process,the painting quality has been significantly improved,costs have been saved,the labor intensity has been reduced,and production efficiency has been remarkably enhanced.展开更多
Fluorogen-activating proteins(FAPs)selectively bind to specific fluorophores,inducing fluorescence activation through the inhibition of torsion of fluorophores.This binding-activation mechanism provides a highly speci...Fluorogen-activating proteins(FAPs)selectively bind to specific fluorophores,inducing fluorescence activation through the inhibition of torsion of fluorophores.This binding-activation mechanism provides a highly specific and efficient fluorescence system that minimizes background signals,significantly enhancing the signal-to-noise ratio(SNR)and making it a powerful tool in live-cell imaging.The principle of binding-activation fluorescence is fundamental to point accumulation for imaging in nanoscale topography(PAINT)super-resolution imaging.However,the high binding affinity between traditional FAPfluorophore pairs limits their application in PAINT,thus hindering the rapid and dynamic imaging necessary for high-resolution cellular studies.In this work,we designed malachite green(MG)derivatives with bulky N-substituents to modulate the binding affinity of the MG-d L5^(**)fluorophore-FAP pair.This modification introduces steric hindrance in MG-dL5^(**)system,resulting in reduced binding affinity and practicability for fast,high-resolution PAINT imaging.Among the synthesized derivatives,MG-Pen showed optimal properties,enabling rapid and high-resolution PAINT imaging of dL5^(**)in living cells.This study highlights the potential of MG derivatives optimization in overcoming the limitations of fluorophore-FAP pairs for super-resolution imaging and provides a new approach for enhancing the performance of PAINT in living cell applications.展开更多
In the PSP(Pressure-Sensitive Paint),image deblurring is essential due to factors such as prolonged camera exposure times and highmodel velocities,which can lead to significant image blurring.Conventional deblurring m...In the PSP(Pressure-Sensitive Paint),image deblurring is essential due to factors such as prolonged camera exposure times and highmodel velocities,which can lead to significant image blurring.Conventional deblurring methods applied to PSP images often suffer from limited accuracy and require extensive computational resources.To address these issues,this study proposes a deep learning-based approach tailored for PSP image deblurring.Considering that PSP applications primarily involve the accurate pressure measurements of complex geometries,the images captured under such conditions exhibit distinctive non-uniform motion blur,presenting challenges for standard deep learning models utilizing convolutional or attention-based techniques.In this paper,we introduce a novel deblurring architecture featuring multiple DAAM(Deformable Ack Attention Module).These modules provide enhanced flexibility for end-to-end deblurring,leveraging irregular convolution operations for efficient feature extraction while employing attention mechanisms interpreted as multiple 1×1 convolutions,subsequently reassembled to enhance performance.Furthermore,we incorporate a RSC(Residual Shortcut Convolution)module for initial feature processing,aimed at reducing redundant computations and improving the learning capacity for representative shallow features.To preserve critical spatial information during upsampling and downsampling,we replace conventional convolutions with wt(Haar wavelet downsampling)and dysample(Upsampling by Dynamic Sampling).This modification significantly enhances high-precision image reconstruction.By integrating these advanced modules within an encoder-decoder framework,we present the DFDNet(Deformable Fusion Deblurring Network)for image blur removal,providing robust technical support for subsequent PSP data analysis.Experimental evaluations on the FY dataset demonstrate the superior performance of our model,achieving competitive results on the GOPRO and HIDE datasets.展开更多
Su Shi can be described as a true genius of his time.Whether in poetry,lyrics,songs,fu,or in life itself,his charismatic personality and rare optimism make him a once-in-a-century talent.This paper takes Su Shi’s poe...Su Shi can be described as a true genius of his time.Whether in poetry,lyrics,songs,fu,or in life itself,his charismatic personality and rare optimism make him a once-in-a-century talent.This paper takes Su Shi’s poems as a guiding thread and explores the conceptual spirit and practical significance reflected in four works:The Cold Food Observance,The Complete Works of Su Dongpo:An Account of Paintings at Jingyin Temple,and Xiaoxiang Bamboo and Stone Map,analyzing them from an artistic perspective.It strives to reveal the profound humanistic sentiments Su Shi evoked in the vast,ever-changing world,as well as the pure and exquisite poetic and pictorial beauty he bestowed upon it.展开更多
The Pressure Sensitive Paint Technique(PSP)has gained attention in recent years because of its significant benefits in measuring surface pressure on wind tunnel models.However,in the post-processing process of PSP ima...The Pressure Sensitive Paint Technique(PSP)has gained attention in recent years because of its significant benefits in measuring surface pressure on wind tunnel models.However,in the post-processing process of PSP images,issues such as pressure taps,paint peeling,and contamination can lead to the loss of pressure data on the image,which seriously affects the subsequent calculation and analysis of pressure distribution.Therefore,image inpainting is particularly important in the post-processing process of PSP images.Deep learning offers new methods for PSP image inpainting,but some basic characteristics of convolutional neural networks(CNNs)may limit their ability to handle restoration tasks.By contrast,the self-attention mechanism in the transformer can efficiently model nonlocal relationships among input features by generating adaptive attention scores.As a result,we propose an efficient transformer network model for the PSP image inpainting task,named multi-scale dilated attention transformer(D-former).The model utilizes the redundancy of global dependencies modeling in Vision Transformers(ViTs)to introducemulti-scale dilated attention(MDA),thismechanism effectivelymodels the interaction between localized and sparse patches within the shifted window,achieving a better balance between computational complexity and receptive field.As a result,D-former allows efficient modeling of long-range features while using fewer parameters and lower computational costs.The experiments on two public datasets and the PSP dataset indicate that the method in this article performs better compared to several advancedmethods.Through the verification of real wind tunnel tests,thismethod can accurately restore the luminescent intensity data of holes in PSP images,thereby improving the accuracy of full field pressure data,and has a promising future in practical applications.展开更多
The art of polychrome lacquer painting with gold tracing and inlay represents the culmination of traditional Chinese lacquer craftsmanship.It integrates four core techniques-lacquer application,polychrome painting,gol...The art of polychrome lacquer painting with gold tracing and inlay represents the culmination of traditional Chinese lacquer craftsmanship.It integrates four core techniques-lacquer application,polychrome painting,gold tracing,and inlay-embodying the pinnacle of ancient artisan ingenuity.This paper begins by outlining the historical origins,technical characteristics,and cultural significance of this art form.Subsequently,using a Qing Dynasty“Hanging Screen Inlaid with Boxwood and Coral Depicting the Scene of Sudhana Paying Homage to Guanyin,with Polychrome Lacquer Painting and Gold Tracing”as a case study,it offers an in-depth analysis of its craftsmanship,visual elements,thematic narrative,and cultural connotations.The study aims to unveil its artistic value and contemporary relevance as a form of“living cultural heritage.”展开更多
Scrap metals are typically covered with surface contaminants,such as paint,dust,and rust,which can significantly affect the emission spectrum during laser-induced breakdown spectroscopy(LIBS)based sorting.In this stud...Scrap metals are typically covered with surface contaminants,such as paint,dust,and rust,which can significantly affect the emission spectrum during laser-induced breakdown spectroscopy(LIBS)based sorting.In this study,the effects of paint layers on metal surfaces during LIBS classification were investigated.LIBS spectra were collected from metal surfaces painted with black and white paints by ablation with a nanosecond pulsed laser(wavelength=1064 nm,pulse width=7 ns).For the black-painted samples,the LIBS spectra showed a broad background emission,emission lines unrelated to the target metals,large shot-to-shot variation,and a relatively low signal intensity of the target metal,causing poor classification accuracy even at high shot numbers.Cleaning the black paint layer by ablating over a wide area prior to LIBS analysis resulted in high classification accuracy with fewer shot numbers.A method to determine the number of cleaning shots necessary to obtain high classification accuracy and high throughput is proposed on the basis of the change in LIBS signal intensity during cleaning shots.For the white-painted samples,the paint peeled off the metal surface after the first shot,and strong LIBS signals were measured after the following shot,which were attributed to the nanoparticles generated by the ablation of the paint,allowing an accurate classification after only two shots.The results demonstrate that different approaches must be employed depending on the paint color to achieve high classification accuracy with fewer shot numbers.展开更多
On January 17,with the theme of“New Year Painting.New Creativity New Expression”,the nation-wide main event of the 2025 “Intangible Cultural Heritage Celebrates the Spring Festival-New Year Painting Entering into F...On January 17,with the theme of“New Year Painting.New Creativity New Expression”,the nation-wide main event of the 2025 “Intangible Cultural Heritage Celebrates the Spring Festival-New Year Painting Entering into Families”kicked off in Handan,Hebei Province,which was jointly organized by the Department of Intangible Cultural Heritage of the Ministry of Culture and Tourism,the Hebei Provincial Department of Culture and Tourism,and the Handan Municipal People’s Government.More than 200 people,including the inheritors of 18 national Intangible Cultural Heritage projects,experts,scholars and designers engaged in the research and innovative design of New Year Painting,and representatives of the enterprises on cultural creation and relevant media,attended the event.展开更多
The image of China in The Painted Veil by Maugham is complicated and diversified.On the one hand,it predicts numerous representative sceneries of the Chinese village,unveiling the exotic natural sceneries of China.Mor...The image of China in The Painted Veil by Maugham is complicated and diversified.On the one hand,it predicts numerous representative sceneries of the Chinese village,unveiling the exotic natural sceneries of China.Moreover,the spirit of Taoism is stated in the novel,unveiling the mysterious culture of Chinese’concern about the harmony of man and nature,which displays Maugham’s admiration for Chinese exotic flavors.On the other hand,China is depicted as poor and undeveloped,a country stricken by epidemic diseases and opium smokers.This article aims to analyze the factors affecting Maugham’s images of China from the subjective and objective perspectives.Chapter two profoundly explores the significant influence of Maugham’s life experience,religious belief and personal values on his individual images of China.Chapter three expounds the effective factors of social thoughts and economy.From the exploration,it is apparent that the formation of the image of China in The Painted Veil is firstly influenced by the life experience,individual values and religious belief of Maugham.Literary writing is actually a miniature and indirect representation of the author’s life experience.展开更多
Jātaka story paintings are common narrative subjects in Dunhuang murals.Based on corresponding scriptures,they present all kinds of good deeds that Sakyamuni sacrificed his life to save sentient beings in his previou...Jātaka story paintings are common narrative subjects in Dunhuang murals.Based on corresponding scriptures,they present all kinds of good deeds that Sakyamuni sacrificed his life to save sentient beings in his previous life.Dunhuang Jātaka story paintings are highly consistent with the scriptures in content,but their intuitiveness and expressiveness are more prominent.By comparing the narrative relationship between Jātaka story paintings in the Mogao Grottoes of Dunhuang and their corresponding scriptures,this study finds that the two have unity in reproducing artistic images and restoring key plots of classic Buddhist scripture stories,but there are great differences in the narrative effect.Dunhuang Jātaka story paintings have three prominent features in narrative,including visualization of key elements,concretization of expressions and movements,and contextualization of cause and effect.This study aims to reveal the intertextual narrative relationship between Dunhuang Jātaka story paintings and their corresponding scriptures.展开更多
Comparing to its sister-family （Rhinolophidae）, Hipposideridae was less studied by cytogenetic approaches. Only a few high-resolution G-banded karyotypes have been reported so far, and most of the conclusions on the...Comparing to its sister-family （Rhinolophidae）, Hipposideridae was less studied by cytogenetic approaches. Only a few high-resolution G-banded karyotypes have been reported so far, and most of the conclusions on the karyotypic evolution in Hipposideridae were based on conventional Giemsa-staining. In this study, we applied comparative chromosome painting, a method of choice for genome-wide comparison at the molecular level, and G- and C-banding to establish comparative map between five hipposiderid species from China, using a whole set of chromosome-specific painting probes from one of them （Aselliscus stoliczkanus）. G-band and C-band comparisons between homologous segments defined by chromosome painting revealed that Robertsonian translocations, paracentric inversions and heterochromatin addition could be the main mechanism of chromosome evolution in Hipposideridae. Comparative analysis of the conserved chromosomal segments among five hipposiderid species and outgroup species suggests that bi-armed chromosomes should be included into the ancestral karyotype of Hipposideridae, which was previously believed to be exclusively composed of acrocentric chromosomes.展开更多
文摘The mechanism of corrosion is mainly sustained by an electrochemical process, in which anodic and cathodic reactions take place, keeping their kinetics alive by electrons and ions fluxes. Several specific conditions can accelerate corrosion processes. When studying anticorrosive coatings, one of them is the contamination of metallic surface by soluble salts prior to coating, leading to premature failure of the paint system due to corrosion between the metallic surface and the coating. So the surface preparation step prior to coating is a procedure of great importance to the coating anticorrosive performance. The aim of this step is to clean the surface by removing visible and non-visible contaminants. Usually, wet abrasive blasting methods are the most efficient ones to achieve the latter objective, because they may clean the surface, create a surface roughness and also remove the non-visible contaminants, as they use water as a media. On the other hand, evaporation of water after blasting may create flash rust and to avoid this, it is common to use corrosion inhibitors in the water of wet blasting methods. In this paper, the use of sodium tetraborate (borax) as a corrosion inhibitor in wet abrasive blasting is discussed. Electrochemical measurements and mass loss tests show that a borax content of 1% in a saline solution has the best inhibitory action over carbon steel and zinc surfaces, allowing postponing for the painting step some time. However, residual borax left on the surface generated blistering and corrosion under coating, during accelerated corrosion test in a humidity condensation chamber. Electrochemical impedance spectroscopy confirmed that borax accelerated the permeation of water through the coating, downgrading the anticorrosive performance of the paint system.
基金Supported by Shanghai Leading Academic Discipline Project(No.B602)
文摘Many cable-stayed bridges have been built in the world in the past decades,and cable-stayed structures have been adopted in many large constructions.The cable painting robot is safe and economically efficient for stay cable maintenance.In order to satisfy the need for spraying cables in high attitude,an automatic cable spray system for cable painting robots is presented in this paper.Using the β distribution,paint thickness distribution on a cylinder surface is modeled.The spray gun's number,angle and movement are analyzed to get coat evenness.Then a robotic spray system engineering prototype has been developed,which includes a cable electric running climbing base,a spray cover,four airless spray guns and a pressurized paint container.Experiments indicate that four airless spray guns can guarantee good coat quality for general stay cables.The field tests have been successfully conducted on Nanpu Bridge,Shanghai.
文摘Background: Despite art therapy has been widely used in cancer population to improve their physical and mental health, painting therapy, as one form of art therapy, is seldom applied to adult cancer patients independently. Therefore, how painting therapy affects adult cancer patients’ health outcomes needed to be explored sufficiently. Objectives: The purpose of this review was to assess and synthesize the latest evidence of painting therapy concerning adult cancer patients, and to provide some inspiration for clinical staff. Methods: A literature research of PubMed, Web of Science, Cochrane Library, EMBASE, CINAHL, PsychoInfo, Psydex, CENTRAL, Google Scholar, British Library, CNKI, Wanfang, CQVIP electronic databases were undertaken with the following key words: art therapy, painting, drawing, cancer, neoplasm, tumor, carcinoma and oncology. A narrative synthesis was used according to PRISMA and the quality of study was assessed using acritical assessment tool. Results: Eleven papers reporting nine different research projects met the inclusion criteria. Generally speaking, painting therapy positively affected health outcomes. The impacts on patients include improvements in quality of life, coping with disease, mental health and somatic symptoms. However, inconsistency still exists. Three studies failed to show positive effects of painting therapy on post-traumatic growth, distress and coping behavior in participants. Conclusion: Robust evidence was found in rehabilitation of patients with various types of cancer. Painting therapy evidently affected cancer patients in a positive direction. However, the application of painting therapy to cancer patients needs to be explored further due to few studies on this topic.
文摘The present article reports the application of zinc ethyl silicate paint and the use of internal and external paint schemes on carbon steel spheres for the storage of liquefied petroleum gas. The new paint scheme eliminates the steps of blasting in the field and minimizes the collection of waste generated and the environmental impact, reducing the service time onsite and therefore providing a productivity gain and better health and cleanliness at work. The results were obtained through test runs and qualified in bodies-of-proof made with the same characteristics as the sphere, that is, using the same material (carbon steel), thickness, and mechanical formation and subject to the same conditions of design and implementation process. The paint scheme was approved, qualified, and committed to the supplier’s warranty with the paint manufacturer and assembler of the storage spheres for liquefied petroleum gas.
文摘William Somerset Maugham was one of the most popular British writers of his era.Many of his works are closely related to China,among which is the famous novel The Painted Veil.This novel narrates the love story between the heroine Kitty,an attractive but vainglorious middle-class lady,and the intelligent bacteriologist Walter Fane.This thesis aims at exploring the hetero image of China in The Painted Veil from the perspective of imagology.It comprises four chapters.Chapter one introduces the definition of the terms“Image”and“hetero image”.Chapter two analyzes Maugham’s diversified concepts of China:one is the positive and good image,and the other is the negative image.Chapter three illustrates the specific images of China revealed in the novel The Painted Veil,on both positive and negative aspects.After the exploration of the image of China from the perspective of imagology,we can sum up that actually,the image of China in Maugham’s eyes indicated in The Painted Veil is not the real China.It is a combination of the real world observed by Maugham and the imaginative world conceived by him influenced by his own specific culture and society.
文摘At first glance,Lhapa Tsering appears modestly dressed,A:almost unassumingyet an artistic air surrounds him.A man of few words,his eyes light up with unmistakable passion the moment painting enters the conversation.His fingers lightly graze the paintbrush.
文摘Through the analysis of the actual situation and process of painting industrial steel components in Hechang Company,we have modified the mixing ratio of paint,thinner,and curing agent.Additionally,we have effectively adjusted the drying time of various paint types under different seasons and temperatures.Eventually,a painting solution suitable for our company has been developed.According to this process,the painting quality has been significantly improved,costs have been saved,the labor intensity has been reduced,and production efficiency has been remarkably enhanced.
基金supported by the National Natural Science Foundation of China(Nos.22225806,22078314,22278394,22378385)Dalian Institute of Chemical Physics(Nos.DICPI202142,DICPI202436)。
文摘Fluorogen-activating proteins(FAPs)selectively bind to specific fluorophores,inducing fluorescence activation through the inhibition of torsion of fluorophores.This binding-activation mechanism provides a highly specific and efficient fluorescence system that minimizes background signals,significantly enhancing the signal-to-noise ratio(SNR)and making it a powerful tool in live-cell imaging.The principle of binding-activation fluorescence is fundamental to point accumulation for imaging in nanoscale topography(PAINT)super-resolution imaging.However,the high binding affinity between traditional FAPfluorophore pairs limits their application in PAINT,thus hindering the rapid and dynamic imaging necessary for high-resolution cellular studies.In this work,we designed malachite green(MG)derivatives with bulky N-substituents to modulate the binding affinity of the MG-d L5^(**)fluorophore-FAP pair.This modification introduces steric hindrance in MG-dL5^(**)system,resulting in reduced binding affinity and practicability for fast,high-resolution PAINT imaging.Among the synthesized derivatives,MG-Pen showed optimal properties,enabling rapid and high-resolution PAINT imaging of dL5^(**)in living cells.This study highlights the potential of MG derivatives optimization in overcoming the limitations of fluorophore-FAP pairs for super-resolution imaging and provides a new approach for enhancing the performance of PAINT in living cell applications.
基金supported by the National Natural Science Foundation of China(No.12202476).
文摘In the PSP(Pressure-Sensitive Paint),image deblurring is essential due to factors such as prolonged camera exposure times and highmodel velocities,which can lead to significant image blurring.Conventional deblurring methods applied to PSP images often suffer from limited accuracy and require extensive computational resources.To address these issues,this study proposes a deep learning-based approach tailored for PSP image deblurring.Considering that PSP applications primarily involve the accurate pressure measurements of complex geometries,the images captured under such conditions exhibit distinctive non-uniform motion blur,presenting challenges for standard deep learning models utilizing convolutional or attention-based techniques.In this paper,we introduce a novel deblurring architecture featuring multiple DAAM(Deformable Ack Attention Module).These modules provide enhanced flexibility for end-to-end deblurring,leveraging irregular convolution operations for efficient feature extraction while employing attention mechanisms interpreted as multiple 1×1 convolutions,subsequently reassembled to enhance performance.Furthermore,we incorporate a RSC(Residual Shortcut Convolution)module for initial feature processing,aimed at reducing redundant computations and improving the learning capacity for representative shallow features.To preserve critical spatial information during upsampling and downsampling,we replace conventional convolutions with wt(Haar wavelet downsampling)and dysample(Upsampling by Dynamic Sampling).This modification significantly enhances high-precision image reconstruction.By integrating these advanced modules within an encoder-decoder framework,we present the DFDNet(Deformable Fusion Deblurring Network)for image blur removal,providing robust technical support for subsequent PSP data analysis.Experimental evaluations on the FY dataset demonstrate the superior performance of our model,achieving competitive results on the GOPRO and HIDE datasets.
文摘Su Shi can be described as a true genius of his time.Whether in poetry,lyrics,songs,fu,or in life itself,his charismatic personality and rare optimism make him a once-in-a-century talent.This paper takes Su Shi’s poems as a guiding thread and explores the conceptual spirit and practical significance reflected in four works:The Cold Food Observance,The Complete Works of Su Dongpo:An Account of Paintings at Jingyin Temple,and Xiaoxiang Bamboo and Stone Map,analyzing them from an artistic perspective.It strives to reveal the profound humanistic sentiments Su Shi evoked in the vast,ever-changing world,as well as the pure and exquisite poetic and pictorial beauty he bestowed upon it.
基金partly supported by the National Natural Science Foundation of China under Grant 12202476,author Chunhua Wei,https://www.nsfc.gov.cn/.
文摘The Pressure Sensitive Paint Technique(PSP)has gained attention in recent years because of its significant benefits in measuring surface pressure on wind tunnel models.However,in the post-processing process of PSP images,issues such as pressure taps,paint peeling,and contamination can lead to the loss of pressure data on the image,which seriously affects the subsequent calculation and analysis of pressure distribution.Therefore,image inpainting is particularly important in the post-processing process of PSP images.Deep learning offers new methods for PSP image inpainting,but some basic characteristics of convolutional neural networks(CNNs)may limit their ability to handle restoration tasks.By contrast,the self-attention mechanism in the transformer can efficiently model nonlocal relationships among input features by generating adaptive attention scores.As a result,we propose an efficient transformer network model for the PSP image inpainting task,named multi-scale dilated attention transformer(D-former).The model utilizes the redundancy of global dependencies modeling in Vision Transformers(ViTs)to introducemulti-scale dilated attention(MDA),thismechanism effectivelymodels the interaction between localized and sparse patches within the shifted window,achieving a better balance between computational complexity and receptive field.As a result,D-former allows efficient modeling of long-range features while using fewer parameters and lower computational costs.The experiments on two public datasets and the PSP dataset indicate that the method in this article performs better compared to several advancedmethods.Through the verification of real wind tunnel tests,thismethod can accurately restore the luminescent intensity data of holes in PSP images,thereby improving the accuracy of full field pressure data,and has a promising future in practical applications.
文摘The art of polychrome lacquer painting with gold tracing and inlay represents the culmination of traditional Chinese lacquer craftsmanship.It integrates four core techniques-lacquer application,polychrome painting,gold tracing,and inlay-embodying the pinnacle of ancient artisan ingenuity.This paper begins by outlining the historical origins,technical characteristics,and cultural significance of this art form.Subsequently,using a Qing Dynasty“Hanging Screen Inlaid with Boxwood and Coral Depicting the Scene of Sudhana Paying Homage to Guanyin,with Polychrome Lacquer Painting and Gold Tracing”as a case study,it offers an in-depth analysis of its craftsmanship,visual elements,thematic narrative,and cultural connotations.The study aims to unveil its artistic value and contemporary relevance as a form of“living cultural heritage.”
基金supported by the R&D Center for Valuable Recycling (Global-Top R&D Program)of the Ministry of Environment (No.2016002250003)。
文摘Scrap metals are typically covered with surface contaminants,such as paint,dust,and rust,which can significantly affect the emission spectrum during laser-induced breakdown spectroscopy(LIBS)based sorting.In this study,the effects of paint layers on metal surfaces during LIBS classification were investigated.LIBS spectra were collected from metal surfaces painted with black and white paints by ablation with a nanosecond pulsed laser(wavelength=1064 nm,pulse width=7 ns).For the black-painted samples,the LIBS spectra showed a broad background emission,emission lines unrelated to the target metals,large shot-to-shot variation,and a relatively low signal intensity of the target metal,causing poor classification accuracy even at high shot numbers.Cleaning the black paint layer by ablating over a wide area prior to LIBS analysis resulted in high classification accuracy with fewer shot numbers.A method to determine the number of cleaning shots necessary to obtain high classification accuracy and high throughput is proposed on the basis of the change in LIBS signal intensity during cleaning shots.For the white-painted samples,the paint peeled off the metal surface after the first shot,and strong LIBS signals were measured after the following shot,which were attributed to the nanoparticles generated by the ablation of the paint,allowing an accurate classification after only two shots.The results demonstrate that different approaches must be employed depending on the paint color to achieve high classification accuracy with fewer shot numbers.
文摘On January 17,with the theme of“New Year Painting.New Creativity New Expression”,the nation-wide main event of the 2025 “Intangible Cultural Heritage Celebrates the Spring Festival-New Year Painting Entering into Families”kicked off in Handan,Hebei Province,which was jointly organized by the Department of Intangible Cultural Heritage of the Ministry of Culture and Tourism,the Hebei Provincial Department of Culture and Tourism,and the Handan Municipal People’s Government.More than 200 people,including the inheritors of 18 national Intangible Cultural Heritage projects,experts,scholars and designers engaged in the research and innovative design of New Year Painting,and representatives of the enterprises on cultural creation and relevant media,attended the event.
文摘The image of China in The Painted Veil by Maugham is complicated and diversified.On the one hand,it predicts numerous representative sceneries of the Chinese village,unveiling the exotic natural sceneries of China.Moreover,the spirit of Taoism is stated in the novel,unveiling the mysterious culture of Chinese’concern about the harmony of man and nature,which displays Maugham’s admiration for Chinese exotic flavors.On the other hand,China is depicted as poor and undeveloped,a country stricken by epidemic diseases and opium smokers.This article aims to analyze the factors affecting Maugham’s images of China from the subjective and objective perspectives.Chapter two profoundly explores the significant influence of Maugham’s life experience,religious belief and personal values on his individual images of China.Chapter three expounds the effective factors of social thoughts and economy.From the exploration,it is apparent that the formation of the image of China in The Painted Veil is firstly influenced by the life experience,individual values and religious belief of Maugham.Literary writing is actually a miniature and indirect representation of the author’s life experience.
文摘Jātaka story paintings are common narrative subjects in Dunhuang murals.Based on corresponding scriptures,they present all kinds of good deeds that Sakyamuni sacrificed his life to save sentient beings in his previous life.Dunhuang Jātaka story paintings are highly consistent with the scriptures in content,but their intuitiveness and expressiveness are more prominent.By comparing the narrative relationship between Jātaka story paintings in the Mogao Grottoes of Dunhuang and their corresponding scriptures,this study finds that the two have unity in reproducing artistic images and restoring key plots of classic Buddhist scripture stories,but there are great differences in the narrative effect.Dunhuang Jātaka story paintings have three prominent features in narrative,including visualization of key elements,concretization of expressions and movements,and contextualization of cause and effect.This study aims to reveal the intertextual narrative relationship between Dunhuang Jātaka story paintings and their corresponding scriptures.
基金supported by grants from the National Natural Science Foundation of China(30770293)the Ministry of Science and Technology of China(2005DKA21502)
文摘Comparing to its sister-family （Rhinolophidae）, Hipposideridae was less studied by cytogenetic approaches. Only a few high-resolution G-banded karyotypes have been reported so far, and most of the conclusions on the karyotypic evolution in Hipposideridae were based on conventional Giemsa-staining. In this study, we applied comparative chromosome painting, a method of choice for genome-wide comparison at the molecular level, and G- and C-banding to establish comparative map between five hipposiderid species from China, using a whole set of chromosome-specific painting probes from one of them （Aselliscus stoliczkanus）. G-band and C-band comparisons between homologous segments defined by chromosome painting revealed that Robertsonian translocations, paracentric inversions and heterochromatin addition could be the main mechanism of chromosome evolution in Hipposideridae. Comparative analysis of the conserved chromosomal segments among five hipposiderid species and outgroup species suggests that bi-armed chromosomes should be included into the ancestral karyotype of Hipposideridae, which was previously believed to be exclusively composed of acrocentric chromosomes.
