Towards a blank design method for manufacturing big-tapered profiled ring disk by spinning-rolling process

The big-tapered profiled ring disk is a key component of engines for rockets and missiles.A new forming technology,as called spinning-rolling process,has been proposed previously for the high performance,high efficiency and low-cost manufacturing of the component.Blank design is the key part of plastic forming process design.For spinning-rolling process,the shape and size of the blank play a crucial role in process stability,deformation behavior and dimensional accuracy.So this work proposes a blank design method to determine the geometry structure and sizes of the blank.The mathematical model for calculating the blank size has been deduced based on volume conservation and neutral layer length invariance principle.The FE simulation and corresponding trial production of an actual big-tapered profiled ring disk show that the proposed blank design method is applicative.In order to obtain a preferred blank,the influence rules of blank size determined by different deformation degrees(rolling ratio k)on the spinning-rolling process are revealed by comprehensive FE simulations.Overall considering the process stability,circularity of the deformed ring disk and forming forces,a reasonable range of deformation degree(rolling ratio k)is recommended for the blank design of the new spinning-rolling process.

“liberal arts”的源与流——古今之变中的审视

“古今之变”是审视liberal arts流变的中心线索。古典liberal arts是具有内在统一性并指向完满品格的整全性知识体系。欧洲三次文艺复兴对liberal arts的再造展现了其历史流变中的不变逻辑,即为特定时代的受教育者提供共同价值。德国古典大学赋予了liberal arts在古典意义上的完美形态,而新人文主义的自我塑造观念孕育了博雅教育的现代转向。科学革命终结了古典学术的内在统一性与道德理想,瓦解了古典liberal arts。美国现代大学则借助古典资源,经由三次改革浪潮重建了liberal arts。然而,古典教育凝聚文明精华的共同价值、塑造意义与学术整合力量,同现代科学的智识自由、价值分殊与学科分化特性相冲突,这是古今之变为现代大学再造liberal arts所深植的困境,liberal arts只能在钟摆的两端之间不断权衡。

Improving vanadium extraction from stone coal via combination of blank roasting and bioleaching by ARTP-mutated Bacillus mucilaginosus

In order to improve leaching efficiency of vanadium from stone coal,the combination of blank roasting and bioleaching using Bacillus mucilaginosus(B.mucilaginosus)mutants was evaluated.The atmospheric and room temperature plasma(ARTP)technique was used to generate B.mucilaginosus mutants.The results showed that a mutant B.mucilaginosus BM-50,after ARTP irradiation for 50 s,had the highest acid production.The total content of the organic acid produced by B.mucilaginosus BM-50 was nearly doubled compared with the wild strain after 2 days.After 20 days,vanadium leaching rate with B.mucilaginosus BM-50 reached 18.2%,which was improved compared with the original bacteria(15.3%).A pretreatment via blank roasting for stone coal further improved the vanadium dissolution by bioleaching,namely,68.3%vanadium was extracted,which was much higher than that without blank roasting.It is shown that bioleaching by bacterial mutants by ARTP irradiation combined with blank roasting has great potential for improving vanadium recovery from low-grade vanadium bearing stone coal.

医护-社会组织一体化模式对HIV/AIDS患者ART及自我管理能力的影响

探究接受高效抗反转录病毒治疗确诊HIV/AIDS患者接受医护-社会组织一体化模式干预价值。方法 从2022年1月至2022年12月南昌市某定点医院接受抗病毒治疗及随访管理的新确诊HIV/AIDS患者100例,50例接受传统医护合作模式对照组、50例接受医护-社会组织一体化模式观察组,两组各项临床指标差异进行分析对比(从HIV抗体初筛阳性到启动ART治疗时间、抗病毒治疗一年后HIV病毒载量的指标及病毒抑制率、抗病毒治疗一年后自我管理能力)。结果 干预后与对照组比较,观察组HIV抗体初筛阳性到启动ART治疗时间显著偏低,HIV病毒载量指标水平显著偏低,病毒抑制率显著偏高,一年后自我管理能力评分显著偏高,用药依从性显著偏高(P<0.05)。结论 接受抗病毒治疗及随访管理的确诊HIV/AIDS患者接受医护-社会组织一体化模式干预后,可显著提高患者自我管理能力。此外,还能保障高病毒抑制率,缩短患者治疗时间,提升患者用药依从性。

On-line quality inspection in laser blank welding using ART2 neural network

Laser blank welding is becoming more and more important in the automotive industry and the quality of the weld is critical for a successful application. A fully automated solution is required to inspect the quality of the blanks. This paper presents a vision inspection system with a CMOS camera which uses ART2 network to inspect the defects on-line to obtain the geometry and the quality of the weld seam. The neural network ART2 has the capability of self-learning fiom the environment. It can distinguish the defects that have been learned before and give new outputs for new defects. So ART2 network is suitable for weld quality inspection in laser blank welding. Additionally, a CO2 laser is used for the blank butt-welding.

Effect of blank holder pressure on viscous pressure forming aluminum alloy ladder parts

Viscous pressure forming (VPF), is suitable for forming difficult to form sheet metal parts. An investigation in the effect of blank holder pressure (BHP) on VPF aluminum alloy ladder parts was conducted. Based on experimental and numerical simulation results of the effect of BHP on dimensional accuracy, wall thickness reduction, forming pressure, material flow and defects (such as wrinkling and fracture) of specimens, the effect patterns of BHP load path on VPF ladder parts were explained. The limits of BHP corresponding to specimens with no defect and with wrinkling or fracture defect were determined. In the limits of formable BHP, the variable load path of BHP was beneficial to drawing blank into the die and decreasing wall thickness reduction of specimens. The experimental results show that the ladder parts of good surface fineness and high dimensional accuracy can be obtained by variable load paths of BHP.

基于ART背景场的福建地面实况分析产品适用性研究

利用ART和ERA5不同背景场研制的福建省地面实况分析产品(分别简记为“FJ_ART”,“FJ_ERA5”),并在沿海、海岛、浮标三种不同测站环境下开展气温、风速、降水等气象要素的评估检验。结果表明,(1)相比FJ_ERA5,FJ_ART各要素的相关系数≥0.98,提升至少0.01,且相关系数≥0.99的站数平均多出16%;其中气温、气压、湿度、降水平均绝对误差分别为0.18℃、1.26 hPa、1.66%、0.04 mm,下降0.05℃、0.17 hPa、0.3%、0.01 mm,表明FJ_ART整体优于FJ_ERA5。(2)利用FJ_ART研究沿海风速的陆海变化:日最大风速横向、纵向小时累积概率分别≥0.76、≥0.73,正偏离分别为0.3 m∙s^(-1)、0.6 m∙s^(-1),表明FJ_ART与原始观测在海陆横向风速方面具有较强的一致性,部分结果优于国内其他相关研究。

wbForming mechanism of collapse angle of fine blanking parts with sharp corners and influence of position of V-ring indenter of die on it

Fine blanking parts with sharp corners produce collapse angles in the fine blanking process,and larger collapse angles can affect the parts’ performance and lifetime. In this paper,a fine blanking part with sharp corners was taken as an example to analyze the forming mechanism of the collapse angles by DEFORM 3 D,then studying the influence of the position of the V-ring indenter of die on the collapse angle. It was concluded that the material’s metal flow line was intensive near the blanking clearance;The equivalent stress area of the material was mainly concentrated around the blanking clearance,and then gradually shrinked to joint of part and scrap;the closer the distance L was,and the smaller equivalent stress area was mainly concentrated around the blanking clearance was,and the smaller collapse angle was.

基于ART的集装箱运输防损策略优化探究

本论文结合人工智能运输机器人在港口应用的案例,从问题现象入手,分析急停可能导致的损失,通过对ART急停原因分析,制定出急停改缓停的解决方案,结果显示缓停策略大大地降低了ART急停概率,可为其他自动化集装箱码头水平运输作业或使用自动化车辆的工程项目提供借鉴。

Application of Modern Construction Art in Landscape Architecture Planning and Design

The continuous progress of urbanization has driven the continuous development and innovation of landscape planning and design.Focused on the important design method of modern construction art,this study analyzed its concepts and characteristics,and made deep exploration to its application in landscape planning and design.The results indicated that modern construction art had a significant impact on landscape spatial planning and layout,spatial design forms,and spatial ornaments.The use of modern construction art concepts could make landscape design more scientific,artistic,and humane,creating higher quality leisure and entertainment venues for audiences.

A Discussion of Artificial Intelligence in Visual Art Education

Since ChatGPT emerged on November 30, 2022, Artificial Intelligence (AI) has been increasingly discussed as a radical force that will change our world. People have become used to AI in which such ubiquitous technologies as Siri, Google, and Netflix deploy AI algorithms to answer questions, impart information, and provide recommendations. However, many individuals including originators and backers of AI have recently expressed grave concerns. In this paper, the authors will assess what is occurring with AI in Visual Arts Education, outline positives and negatives, and provide recommendations addressed specifically for teachers working in the field regarding emerging AI usage from kindergarten to grade twelve levels as well as in higher education.

Application of Midjournal and Stable Diffusion in Environmental Art and Design Courses in Higher Education Institutions

This study was aimed to explore the feasibility of introducing two mainstream AI drawing applications,Midjournal and Stable Diffusion,into the environmental art and design courses in higher education institutions.On the basis of introducing the development history of AI drawing technology,the characteristics of Midjournal and Stable Diffusion and their applications in teaching were described in detail.The analysis on its practical application in public space design courses showed that AI drawing technology could significantly improve students’creative efficiency and the possibility of artistic creation,while also enriching the expressive power of design.In spite of the challenges such as technical accuracy,response to complex design requirements,hardware dependencies,and student dependencies,the application of AI drawing technology had an overall positive prospects in the field of education.Finally,the value of AI drawing technology in teaching was emphasized,and the challenges it brought were discussed,as well as how to fully utilize this technology while maintaining teaching objectives and educational principles.

The Innovation and Practice of the “Tourism Management + English” Talent Cultivation Model Based on the New Liberal Arts Concept

In the context of globalization, there is an urgent need to cultivate interdisciplinary talents with knowledge of tourism management and proficiency in English. Guided by the New Liberal Arts concept, the “Tourism Management + English” talent cultivation model has emerged. Taking the tourism management talent cultivation of Hainan province as an example, this article analyzes the issues present in traditional tourism management programs and proposes a construction framework that involves conducting in-depth industry research, improving management systems, increasing financial support, implementing strict and standardized management, optimizing talent cultivation plans, highlighting distinctive training features, and strengthening industry services.

Design Methodologies in Interdisciplinary Teaching: Integrating Art and Education

Interest in integrating design methodologies within interdisciplinary teaching has emerged as a strong method for increasing student learning and creativity, especially in integrating art and education. This study discusses the theoretical underpinnings of design-based teaching methodology and its practical applications in interdisciplinary settings. It discusses current practices and emerging trends in how design thinking principles bridge the gap between artistic expression and educational pedagogy. The results highlight the importance of a collaborative learning environment, an iterative process, and project-based approaches that allow the development of skills related to creativity besides the analytical ones. The main strategies in implementing methodologies for such purposes and their impact on student engagement in learning are discussed.

Survey of real-time brainmedia in artistic exploration

This survey examines the evolution and impact of real-time brainmedia on artistic exploration,contextualizing developments within a historical framework.To enhance knowledge on the entanglement between the brain,mind,and body in an increasingly mediated world,this work defines a clear scope at the intersection of bio art and interactive art,concentrating on real-time brainmedia artworks developed in the 21st century.It proposes a set of criteria and a taxonomy based on historical notions,interaction dynamics,and media art representations.The goal is to provide a comprehensive overview of real-time brainmedia,setting the stage for future explorations of new paradigms in communication between humans,machines,and the environment.

Bibliometric analysis of the art market:from art price to market efficiency

This study addresses a significant gap in the existing literature by conducting a comprehensive systematic review of the art market over the past 50 years,utilizing big data analysis and bibliometric methods.Through descriptive statistical analysis,we gained insights into research trends,influential literature,authors,academic disciplines,journals,institutions,and countries.By utilizing various bibliometric analyses,including co-citation,co-word,burstiness,time-zone,and co-cited author analyses,we unraveled the inherent logic within the literature.One significant discovery was the consistent annual increase in research interest in the art market.Notably,the focus of art market research has shifted from hedonic art prices to areas such as artist brand management,electronic art platforms,anti-money-laundering supervision,and art market efficiency.Moreover,this study highlights the impact of the COVID-19 pandemic,expediting an electronic revolution in the art market in recent years.Notably,our study is the first to comprehensively employ bibliometric methods to analyze the art market,thereby laying the groundwork for researchers interested in this field.

The Path to Healthy Development for Chinese Art in the New Era

This topic is closely centered on exploring how Chinese fine arts can take the road to the healthy development of art,which is of great guiding significance.It is clear that the road of national art development is to carry forward the main theme,promote social justice,guide and infect people with correct public opinion,and better serve the people with excellent works.

A New Paradigm of Chinese Opera Films:Teng Junjie’s Narrative Art and Technological Innovation

Teng Junjie has pioneered a new paradigm for Chinese opera films through his exceptional narrative techniques and groundbreaking technological innovations.By skillfully integrating 3D,panoramic sound,and 8K technology,he has brought about a transformative development in both the visual and auditory dimensions of traditional Chinese opera.While preserving the cultural essence of opera,Teng offers audiences an impactful and immersive artistic experience.This paper explores how Teng’s precise narrative pacing and emotional expression deeply reveal the inner world of opera characters,infusing them with renewed artistic vitality.Furthermore,it examines his successful strategies for international dissemination,highlighting how Teng has helped propel Chinese opera films onto the global stage,thereby enhancing China’s cultural soft power.

Analysis of Color and Artistic Conception in Painting Art

The charm of painting,as a bright pearl in the treasure house of culture,lies in its visual language constructed through colors and lines,which conveys the artist’s unique perception of life and profound emotions.Color,as the most intuitive and expressive language in painting,is not only a simple reproduction of material colors but also a projection of the artist’s inner world.Artistic conception,as a core concept in traditional Chinese painting theory,refers to the emotional atmosphere and spiritual mood embedded in paintings.The purpose of this paper is to discuss the interaction between color and mood in painting art,to analyze the techniques of using color in different painting styles and their influence on the creation of mood,and to provide new perspectives and methods for the creation of paintings.

Research on the Cultivation of Aesthetics among Art Students under the New Era Background

Through understanding the history and current situation of aesthetic education in China,this paper explains some misunderstandings in the aesthetics of contemporary university art students,such as the insufficiency of aesthetic value and ability,as well as the inadequacy of students’creativity due to traditional art education.It is also pointed out that the cultivation of core literacy of art students is a multidimensional and comprehensive process,and these problems need to be solved by schools,teachers,and students,so as to strengthen the inner aesthetic education of students and improve their aesthetic awareness and ability.Aesthetic education is not only an important part of the art classroom but also a key part of fostering students’all-round development and enhancing their humanistic literacy.It is necessary to cultivate students’observation,imagination,image-thinking ability,and creativity,so that they can become artistic talents with independent thinking and innovation.