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An Analysis of A Farewell to Arms in Terms of Structuralism 被引量:1
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作者 刘冬梅 《海外英语》 2013年第14期204-205,228,共3页
A Farewell to Arms is a classical work in the history of American literature. The author, Hemingway, creates a kind of character in his works successfully, that is, the Hemingway Hero. Due to its excellency, this nove... A Farewell to Arms is a classical work in the history of American literature. The author, Hemingway, creates a kind of character in his works successfully, that is, the Hemingway Hero. Due to its excellency, this novel is appreciated and criticized by many people. The paper aims to analyze this story in terms of structuralism. Structuralism is the belief that things cannot be understood in isolation-they have to be seen in the context of the larger structures they are part of. Parallel and contrast are two main branches in structuralism. And this novel will be analyzed in three aspects, parallel and contras in imagery, parallel and contras in characters, and parallel and contras in structure. 展开更多
关键词 structuralism parallel and CONTRAST IMAGERY
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Structuralism and Postmodem Discourse
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作者 Thomas Hauer 《Journal of Philosophy Study》 2017年第4期191-196,共6页
The dominant features of the post-war intellectual scene in France were existentialism, phenomenology, and Marxism, as well as efforts to synthesize them. In the 1960s, these theoretical currents had to cope with new ... The dominant features of the post-war intellectual scene in France were existentialism, phenomenology, and Marxism, as well as efforts to synthesize them. In the 1960s, these theoretical currents had to cope with new perspectives and ideas brought to the world of theory by the linguistically-oriented discourse of Saussure's structuralism and Lacanian psychoanalysis. Structuralists tried to apply structurally-linguistic model to the humanities and designed the new concept of the language, subjectivity, and society. Levi-Strauss applied the structural-linguistic analysis to the study of myths and family relationships; Lacan developed psychoanalysis based on structuralism; Althusser comes with a structuralist interpretation of Marx. Structuralists attempted to analyse the unconscious codes, rules, and binary oppositions that create the meaning, thus organizing social systems, such as sexual behaviour, fashion, culinary arts, myths, etc. Structures are unconscious, because their product and effects always overlap them. Structuralism therefore does not study individual isolated phenomena, but it moves from the analysis of phenomena that are consciously understood or known to participants in the particular discourse to their "unconscious infrastructures." Structuralists always emphasized rigorously scientific status of their theories; at the same time, applying structurally-linguistic concepts on humanities was supposed to help to make them scientific again. 展开更多
关键词 linguistic structuralism PAROLE POST-structuralism postmodem philosophical theory
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Structuralism and Its Two Contributors
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作者 李宗宏 《河西学院学报》 1998年第1期26-31,35,共7页
1. A General View To Structuralism What does structuralism mean? In its broadest sense structuralism is a 20th century movement in the humanities and social sciences that attach relatively little importance to ca-sual... 1. A General View To Structuralism What does structuralism mean? In its broadest sense structuralism is a 20th century movement in the humanities and social sciences that attach relatively little importance to ca-sual explanation and maintains that to understand a phenomenon one must describe both its internal structure——the relations among its parts——and its relations with other phenome- 展开更多
关键词 structuralism and Its Two Contributors
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The Driving Force and Direction of China’’s Industrial Transformation:A Perspective Based on New Structuralism 被引量:1
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作者 巴曙松 郑军 《China Economist》 2013年第4期14-26,共13页
According to New Structural Economics, the ultimate direction of industrial transformation is determined by factor endowment structure and the relative price system of factors. In today's China, the predominant facto... According to New Structural Economics, the ultimate direction of industrial transformation is determined by factor endowment structure and the relative price system of factors. In today's China, the predominant factor in its labor endowment is shifting from population size to the regional movement of population and population quality, and its land endowment is changing from cheap, massive supply to expensive, limited supply, and the economy has potential of technological catch-up. Because of these three fundamental realities and the special situation that China is vast in territory and has a continuous industrial spectrum, its industrial transformation will be featured with "three unique regions within one country" and that the eastern region enters a new stage which focuses on the development of services, the six central provinces and the western triangle zone take over industries transferred from the east and the resource-rich western region becomes the "home front" as a major supplier of resources. However, this "three region differentiation" will not be automatically developed. Only in a competitive factor market, a flexible financial market and an elastic labor market can the persistent changes in endowment structure drive China's industrial structure towards its optimal form. To achieve this, we need to launch a series of necessary structural reforms. 展开更多
关键词 labor endowment endowment structure technological catch-up industrialtransformation
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THE COMPARATIVE STUDY OF STRUCTURALISM & DECONSTRUCTION 被引量:1
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作者 李薇 丁燕 《Chinese Journal of Applied Linguistics》 2007年第2期111-114,124,共5页
Deconstruction and Structuralism are two of the twentieth century western criticism schools, and their relationship still is an issue that needs to be systematically clarified. The paper presents a review study on the... Deconstruction and Structuralism are two of the twentieth century western criticism schools, and their relationship still is an issue that needs to be systematically clarified. The paper presents a review study on the particular relationship of Deconstruction and Structuralism by comparing these two criticism schools from the respects of their origins, features, and limitations in the chronological view. It tends to prove that Deconstruction stems from the Structuralism, however Deconstruction differs itself from Structuralism in certain key features and bases itself upon a certain characteristic critique of Structuralism. 展开更多
关键词 structuralism DECONSTRUCTION RELATIONSHIP
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The Axiology of Consciousness in Mocombeian Consciousness Field Theory
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作者 Paul C.Mocombe 《Philosophy Study》 2024年第4期168-185,共18页
This work explores the axiology of consciousness in Mocombe’s consciousness field in the material world.The paper critically assesses Mocombe’s consciousness field theory(CFT)within the larger body of contemporary o... This work explores the axiology of consciousness in Mocombe’s consciousness field in the material world.The paper critically assesses Mocombe’s consciousness field theory(CFT)within the larger body of contemporary ontological debates regarding the nature,origin,and constitution of consciousness in the universe.The work goes on to highlight the manifestation of Mocombe’s consciousness field in the material resource framework that is the earth,and the nature and origins of ethics and values. 展开更多
关键词 structuration theory phenomenological structuralism structure/agency mythopraxis quantum mechanics social class language game Haitian epistemology Haitian/Vilokan idealism consciousness field theory
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The Black American Church: A Reactionary and Ideological Apparatus of Slavery
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作者 Paul C.Mocombe 《Philosophy Study》 2024年第1期30-41,共12页
This work argues that Denmark Vesey,Nat Turner,Gabriel Prosser,David Walker,Henry Highland Garnet,amongst a few others were the reactionary(dialectical)exceptions to the black church,not the norm,an(ideological)instit... This work argues that Denmark Vesey,Nat Turner,Gabriel Prosser,David Walker,Henry Highland Garnet,amongst a few others were the reactionary(dialectical)exceptions to the black church,not the norm,an(ideological)institution established to interpellate and indoctrinate blacks to accept their conditions in slavery.In other words,the aforementioned were the enslaved who used Christian dogma to(negative dialectically)respond to the barbarity of slavery by violently convicting white Christian society for not living up to its values,ideas,and ideals given the treatment of African people by so-called Christians.In the latter sense it was reactionary;in the former,it was an ideological apparatus of domination and control for the institution of slavery.The contemporary attempt to racially vindicate the black church as a sui generis revolutionary institution overflowing with Africanisms is ahistorical and ideological reaped in pseudoscientific propositions stemming from postmodern and post-structural theories. 展开更多
关键词 Black Church African-Americanization racial identity religiosity black diaspora SPIRITUALISM phenomenological structuralism
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Structural properties of residual carbon in coal gasification fine slag and their influence on flotation separation and resource utilization:A review 被引量:5
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作者 Rui Han Anning Zhou +4 位作者 Ningning Zhang Kaiqiang Guo Mengyan Cheng Heng Chen Cuicui Li 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第2期217-230,共14页
Coal gasification fine slag(FS)is a typical solid waste generated in coal gasification.Its current disposal methods of stockpil-ing and landfilling have caused serious soil and ecological hazards.Separation recovery a... Coal gasification fine slag(FS)is a typical solid waste generated in coal gasification.Its current disposal methods of stockpil-ing and landfilling have caused serious soil and ecological hazards.Separation recovery and the high-value utilization of residual carbon(RC)in FS are the keys to realizing the win-win situation of the coal chemical industry in terms of economic and environmental benefits.The structural properties,such as pore,surface functional group,and microcrystalline structures,of RC in FS(FS-RC)not only affect the flotation recovery efficiency of FS-RC but also form the basis for the high-value utilization of FS-RC.In this paper,the characteristics of FS-RC in terms of pore structure,surface functional groups,and microcrystalline structure are sorted out in accordance with gasification type and FS particle size.The reasons for the formation of the special structural properties of FS-RC are analyzed,and their influence on the flotation separation and high-value utilization of FS-RC is summarized.Separation methods based on the pore structural characterist-ics of FS-RC,such as ultrasonic pretreatment-pore-blocking flotation and pore breaking-flocculation flotation,are proposed to be the key development technologies for improving FS-RC recovery in the future.The design of low-cost,low-dose collectors containing polar bonds based on the surface and microcrystalline structures of FS-RC is proposed to be an important breakthrough point for strengthening the flotation efficiency of FS-RC in the future.The high-value utilization of FS should be based on the physicochemical structural proper-ties of FS-RC and should focus on the environmental impact of hazardous elements and the recyclability of chemical waste liquid to es-tablish an environmentally friendly utilization method.This review is of great theoretical importance for the comprehensive understand-ing of the unique structural properties of FS-RC,the breakthrough of the technological bottleneck in the efficient flotation separation of FS,and the expansion of the field of the high value-added utilization of FS-RC. 展开更多
关键词 coal gasification fine slag residual carbon pore structure surface functional groups microcrystalline structure flotation sep-aration resource utilization
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Morphological and biochemical characteristics associated with autophagy in gastrointestinal diseases 被引量:5
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作者 Yi-Fan Chang Jia-Jing Li +4 位作者 Tao Liu Chong-Qing Wei Li-Wei Ma Vladimir N Nikolenko Wei-Long Chang 《World Journal of Gastroenterology》 SCIE CAS 2024年第11期1524-1532,共9页
Autophagy is a cellular catabolic process characterized by the formation of double-membrane autophagosomes.Transmission electron microscopy is the most rigorous method to clearly visualize autophagic engulfment and de... Autophagy is a cellular catabolic process characterized by the formation of double-membrane autophagosomes.Transmission electron microscopy is the most rigorous method to clearly visualize autophagic engulfment and degradation.A large number of studies have shown that autophagy is closely related to the digestion,secretion,and regeneration of gastrointestinal(GI)cells.However,the role of autophagy in GI diseases remains controversial.This article focuses on the morphological and biochemical characteristics of autophagy in GI diseases,in order to provide new ideas for their diagnosis and treatment. 展开更多
关键词 AUTOPHAGY Morphological study Biochemical characteristics Subcellular structure Transmission electron microscopy Gastrointestinal diseases
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A comparison study on structure-function relationship of polysaccharides obtained from sea buckthorn berries using different methods:antioxidant and bile acid-binding capacity 被引量:5
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作者 Qiaoyun Li Zuman Dou +5 位作者 Qingfei Duan Chun Chen Ruihai Liu Yueming Jiang Bao Yang Xiong Fu 《Food Science and Human Wellness》 SCIE CSCD 2024年第1期494-505,共12页
In this study,the structural characters,antioxidant activities and bile acid-binding ability of sea buckthorn polysaccharides(HRPs)obtained by the commonly used hot water(HRP-W),pressurized hot water(HRP-H),ultrasonic... In this study,the structural characters,antioxidant activities and bile acid-binding ability of sea buckthorn polysaccharides(HRPs)obtained by the commonly used hot water(HRP-W),pressurized hot water(HRP-H),ultrasonic(HRP-U),acid(HRP-C)and alkali(HRP-A)assisted extraction methods were investigated.The results demonstrated that extraction methods had significant effects on extraction yield,monosaccharide composition,molecular weight,particle size,triple-helical structure,and surface morphology of HRPs except for the major linkage bands.Thermogravimetric analysis showed that HRP-U with filamentous reticular microstructure exhibited better thermal stability.The HRP-A with the lowest molecular weight and highest arabinose content possessed the best antioxidant activities.Moreover,the rheological analysis indicated that HRPs with higher galacturonic acid content and molecular weight showed higher viscosity and stronger crosslinking network(HRP-C,HRP-W and HRP-U),which exhibited stronger bile acid binding capacity.The present findings provide scientific evidence in the preparation technology of sea buckthorn polysaccharides with good antioxidant and bile acid binding capacity which are related to the structure affected by the extraction methods. 展开更多
关键词 Sea buckthorn Extraction method STRUCTURE Rheological properties Antioxidant activity Bile acid binding capacity
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基于谱元法和北方苍鹰算法的振动损伤检测
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作者 周运来 姚峰 +2 位作者 白春玉 李凯翔 朱胜阳 《华东交通大学学报》 2024年第5期29-38,共10页
【目的】为了解决结构损伤检测中有限元法建模不精确和计算成本高的问题,提出了一种结合谱元法与北方苍鹰优化算法(NGO)的结构健康监测(SHM)技术。【方法】首先,采用谱元法建立结构的频响函数,并应用于结构的损伤定位与损伤检测目标函... 【目的】为了解决结构损伤检测中有限元法建模不精确和计算成本高的问题,提出了一种结合谱元法与北方苍鹰优化算法(NGO)的结构健康监测(SHM)技术。【方法】首先,采用谱元法建立结构的频响函数,并应用于结构的损伤定位与损伤检测目标函数的构造,将损伤检测划分为两阶段问题,以降低算法优化维度和检测复杂性。其次,引入北方苍鹰优化算法(NGO),对目标函数进行优化求解。最后,以平面桁架结构和ASCE Benchmark结构为研究对象,利用NGO、粒子群优化(PSO)和蚁狮优化(ALO)算法对其各种损伤工况进行损伤检测性能对比。【结果】结果表明,在低维度和简单结构中,NGO,PSO和ALO算法均表现出良好的求解能力;但在高维度和大型复杂结构中,NGO相较于PSO和ALO算法具有更高的损伤检测能力和鲁棒性。【结论】改进后的方法提高了损伤检测数值建模的精度。 展开更多
关键词 谱元法 损伤检测 NGO ASCE Benchmark Structure
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Dilute Aqueous-Aprotic Electrolyte Towards Robust Zn-Ion Hybrid Supercapacitor with High Operation Voltage and Long Lifespan 被引量:2
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作者 Shuilin Wu Yibing Yang +6 位作者 Mingzi Sun Tian Zhang Shaozhuan Huang Daohong Zhang Bolong Huang Pengfei Wang Wenjun Zhang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第9期1-12,共12页
With the merits of the high energy density of batteries and power density of supercapacitors,the aqueous Zn-ion hybrid supercapacitors emerge as a promising candidate for applications where both rapid energy delivery ... With the merits of the high energy density of batteries and power density of supercapacitors,the aqueous Zn-ion hybrid supercapacitors emerge as a promising candidate for applications where both rapid energy delivery and moderate energy storage are required.However,the narrow electrochemical window of aqueous electrolytes induces severe side reactions on the Zn metal anode and shortens its lifespan.It also limits the operation voltage and energy density of the Zn-ion hybrid supercapacitors.Using'water in salt'electrolytes can effectively broaden their electrochemical windows,but this is at the expense of high cost,low ionic conductivity,and narrow temperature compatibility,compromising the electrochemical performance of the Zn-ion hybrid supercapacitors.Thus,designing a new electrolyte to balance these factors towards high-performance Zn-ion hybrid supercapacitors is urgent and necessary.We developed a dilute water/acetonitrile electrolyte(0.5 m Zn(CF_(3)SO_(3))_(2)+1 m LiTFSI-H_(2)O/AN)for Zn-ion hybrid supercapacitors,which simultaneously exhibited expanded electrochemical window,decent ionic conductivity,and broad temperature compatibility.In this electrolyte,the hydration shells and hydrogen bonds are significantly modulated by the acetonitrile and TFSI-anions.As a result,a Zn-ion hybrid supercapacitor with such an electrolyte demonstrates a high operating voltage up to 2.2 V and long lifespan beyond 120,000 cycles. 展开更多
关键词 Zn-ion supercapacitors Zn metal anode Electrolyte engineering Hydrogen bonds Solvation structures
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Decade Milestone Advancement of Defect-Engineered g-C_(3)N_(4) for Solar Catalytic Applications 被引量:3
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作者 Shaoqi Hou Xiaochun Gao +8 位作者 Xingyue Lv Yilin Zhao Xitao Yin Ying Liu Juan Fang Xingxing Yu Xiaoguang Ma Tianyi Ma Dawei Su 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第4期153-218,共66页
Over the past decade, graphitic carbon nitride(g-C_(3)N_(4)) has emerged as a universal photocatalyst toward various sustainable carbo-neutral technologies. Despite solar applications discrepancy, g-C_(3)N_(4) is stil... Over the past decade, graphitic carbon nitride(g-C_(3)N_(4)) has emerged as a universal photocatalyst toward various sustainable carbo-neutral technologies. Despite solar applications discrepancy, g-C_(3)N_(4) is still confronted with a general fatal issue of insufficient supply of thermodynamically active photocarriers due to its inferior solar harvesting ability and sluggish charge transfer dynamics. Fortunately, this could be significantly alleviated by the “all-in-one” defect engineering strategy, which enables a simultaneous amelioration of both textural uniqueness and intrinsic electronic band structures. To this end, we have summarized an unprecedently comprehensive discussion on defect controls including the vacancy/non-metallic dopant creation with optimized electronic band structure and electronic density, metallic doping with ultraactive coordinated environment(M–N_(x), M–C_(2)N_(2), M–O bonding), functional group grafting with optimized band structure, and promoted crystallinity with extended conjugation π system with weakened interlayered van der Waals interaction. Among them, the defect states induced by various defect types such as N vacancy, P/S/halogen dopants, and cyano group in boosting solar harvesting and accelerating photocarrier transfer have also been emphasized. More importantly, the shallow defect traps identified by femtosecond transient absorption spectra(fs-TAS) have also been highlighted. It is believed that this review would pave the way for future readers with a unique insight into a more precise defective g-C_(3)N_(4) “customization”, motivating more profound thinking and flourishing research outputs on g-C_(3)N_(4)-based photocatalysis. 展开更多
关键词 Defect engineering g-C_(3)N_(4) Electronic band structures Photocarrier transfer kinetics Defect states
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Mechanical responses of anchoring structure under triaxial cyclic loading 被引量:2
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作者 Peng Wang Nong Zhang +5 位作者 Qun Wei Xingliang Xu Guangzhen Cui Aoran Li Sen Yang Jiaguang Kan 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第2期545-560,共16页
Dynamic load on anchoring structures(AS)within deep roadways can result in cumulative damage and failure.This study develops an experimental device designed to test AS under triaxial loads.The device enables the inves... Dynamic load on anchoring structures(AS)within deep roadways can result in cumulative damage and failure.This study develops an experimental device designed to test AS under triaxial loads.The device enables the investigation of the mechanical response,failure mode,instability assessment criteria,and anchorage effect of AS subjected to combined cyclic dynamic-static triaxial stress paths.The results show that the peak bearing strength is positively correlated with the anchoring matrix strength,anchorage length,and edgewise compressive strength.The bearing capacity decreases significantly when the anchorage direction is severely inclined.The free face failure modes are typically transverse cracking,concave fracturing,V-shaped slipping and detachment,and spallation detachment.Besides,when the anchoring matrix strength and the anchorage length decrease while the edgewise compressive strength,loading rate,and anchorage inclination angle increase,the failure intensity rises.Instability is determined by a negative tangent modulus of the displacement-strength curve or the continued deformation increase against the general downward trend.Under cyclic loads,the driving force that breaks the rock mass along the normal vector and the rigidity of the AS are the two factors that determine roadway stability.Finally,a control measure for surrounding rock stability is proposed to reduce the internal driving force via a pressure relief method and improve the rigidity of the AS by full-length anchorage and grouting modification. 展开更多
关键词 Triaxial stress Dynamic-static combination load Cyclic loading Anchoring structure(AS) Cumulative damage
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Carbon Emission Effects Driven by Evolution of Chinese Dietary Structure from 1987 to 2020 被引量:1
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作者 ZHU Yuanyuan ZHANG Yan ZHU Xiaohua 《Chinese Geographical Science》 SCIE CSCD 2024年第1期181-194,共14页
Exploring carbon emission effects based on the evolution of residents’ dietary structure to achieve the carbon neutrality goal and mitigate climate change is an important task.This study took China as the research ob... Exploring carbon emission effects based on the evolution of residents’ dietary structure to achieve the carbon neutrality goal and mitigate climate change is an important task.This study took China as the research object(data excluding Hong Kong,Macao and Taiwan) and used the carbon emission coefficient method to quantitatively measure the food carbon emissions from 1987–2020,then analyzed the carbon emission effects under the evolution of dietary structure.The results showed that during the study period,the Chinese dietary structure gradually changed to a high-carbon consumption pattern.The dietary structure of urban residents developed to a balanced one,while that of rural residents developed to a high-quality one.During the study period,the per capita food carbon emissions and total food consumption of Chinese showed an increasing trend.The per capita food carbon emissions of residents in urban and rural showed an overall upward trend.The total food carbon emissions in urban increased significantly,while that in rural increased first and then decreased.The influence of beef and mutton on carbon emissions is the highest in dietary structure.Compared with the balanced dietary pattern,the food carbon emissions of Chinese residents had not yet reached the peak,but were evolving to a high-carbon consumption pattern. 展开更多
关键词 dietary structure structural evolution carbon emission effects carbon neutrality China
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Structure and immunomodulatory activity of Lentinus edodes polysaccharides modified by probiotic fermentation 被引量:2
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作者 Jingjing Liang Meina Zhang +6 位作者 Xiaohan Li Yuan Yue Xiaowei Wang Mengzhen Han Tianli Yue Zhouli Wang Zhenpeng Gao 《Food Science and Human Wellness》 SCIE CSCD 2024年第1期421-433,共13页
Plant-based fermentations provide an untapped source for novel biotechnological applications.In this study,a probiotic named Lactobacillus fermentum 21828 was introduced to ferment Lentinus edodes.Polysaccharides were... Plant-based fermentations provide an untapped source for novel biotechnological applications.In this study,a probiotic named Lactobacillus fermentum 21828 was introduced to ferment Lentinus edodes.Polysaccharides were extracted from fermented and non-fermented L.edodes and purified via DEAE-52 and Sephadex G-100.The components designated F-LEP-2a and NF-LEP-2a were analyzed by FT-IR,HPGPC,HPAEC,SEM,GC-MS and NMR.The results revealed that probiotic fermentation increased the molecular weight from 1.16×10^(4) Da to 1.87×10^(4) Da and altered the proportions of glucose,galactose and mannose,in which glucose increased from 45.94%to 48.16%.Methylation analysis and NMR spectra indicated that F-LEP-2a and NF-LEP-2a had similar linkage patterns.Furthermore,their immunomodulatory activities were evaluated with immunosuppressive mice.NF-LEP and F-LEP improved immune organ indices,immunoglobulin(Ig G and Ig M)and cytokines concentrations;restored the antioxidation capacity of liver;and maintained the balance of gut microbiota.F-LEP displayed better moderating effects on the spleen index,immunoglobulin,cytokines and the diversity of gut microbiota than NF-LEP(200,400 mg/kg).Our study provides an efficient and environment-friendly way for the structural modification of polysaccharides,which helps to enhance their biological activity and promote their wide application in food,medicine and other fields. 展开更多
关键词 Lentinus edodes polysaccharide Lactobacillus fermentum fermentation Structural analysis Immunoregulatory activity Nuclear magnetic resonance
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Frequency Domain Fatigue Evaluation on SCR Girth-Weld Based on Structural Stress 被引量:2
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作者 ZHANG Long ZHAO Tian-feng 《China Ocean Engineering》 SCIE EI CSCD 2024年第2期255-270,共16页
The Steel Catenary Riser(SCR)is a vital component for transporting oil and gas from the seabed to the floating platform.The harsh environmental conditions and complex platform motion make the SCR’s girth-weld prone t... The Steel Catenary Riser(SCR)is a vital component for transporting oil and gas from the seabed to the floating platform.The harsh environmental conditions and complex platform motion make the SCR’s girth-weld prone to fatigue failure.The structural stress fatigue theory and Master S-N curve method provide accurate predictions for the fatigue damage on the welded joints,which demonstrate significant potential and compatibility in multi-axial and random fatigue evaluation.Here,we propose a new frequency fatigue model subjected to welded joints of SCR under multiaxial stress,which fully integrates the mesh-insensitive structural stress and frequency domain random process and transforms the conventional welding fatigue technique of SCR into a spectrum analysis technique utilizing structural stress.Besides,a full-scale FE model of SCR with welds is established to obtain the modal structural stress of the girth weld and the frequency response function(FRF)of modal coordinate,and a biaxial fatigue evaluation about the girth weld of the SCR can be achieved by taking the effects of multi-load correlation and pipe-soil interaction into account.The research results indicate that the frequency-domain fatigue results are aligned with the time-domain results,meeting the fatigue evaluation requirements of the SCR. 展开更多
关键词 SCR girth weld random vibration self(cross)power spectrum structural stress method biaxial fatigue damage
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Seismic response of a mid-story isolated structure considering SSI in mountainous areas under long-period earthquakes 被引量:1
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作者 Wan Feng Qin Shengwu +7 位作者 Liu Dewen Zhao Tiange Zheng Yanping Shan Hang Li Zhiang Peng Fusong Xu Jingran Lei Min 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2024年第1期151-161,共11页
At present,there is not much research on mid-story isolated structures in mountainous areas.In this study,a model of a mid-story isolated structure considering soil-structure interaction(SSI)in mountainous areas is es... At present,there is not much research on mid-story isolated structures in mountainous areas.In this study,a model of a mid-story isolated structure considering soil-structure interaction(SSI)in mountainous areas is established along with a model that does not consider SSI.Eight long-period earthquake waves and two ordinary earthquake waves are selected as inputs for the dynamic time history analysis of the structure.The results show that the seismic response of a mid-story isolated structure considering SSI in mountainous areas can be amplified when compared with a structure that does not consider SSI.The structure response under long-period earthquakes is larger than that of ordinary earthquakes.The structure response under far-field harmonic-like earthquakes is larger than that of near-fault pulse-type earthquakes.The structure response under near-fault pulse-type earthquakes is larger than that of far-field non-harmonic earthquakes.When subjected to long-period earthquakes,the displacement of the isolated bearings exceeded the limit value,which led to instability and overturning of the structure.The structure with dampers in the isolated story could adequately control the nonlinear response of the structure,effectively reduce the displacement of the isolated bearings,and provide a convenient,efficient and economic method not only for new construction but also to retrofit existing structures. 展开更多
关键词 SSI in mountainous areas long-period earthquakes mid-story isolated structure structural dynamic analysis
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OptoGPT: A foundation model for inverse design in optical multilayer thin film structures 被引量:1
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作者 Taigao Ma Haozhu Wang L.Jay Guo 《Opto-Electronic Advances》 SCIE EI CAS CSCD 2024年第7期4-16,共13页
Optical multilayer thin film structures have been widely used in numerous photonic applications.However,existing inverse design methods have many drawbacks because they either fail to quickly adapt to different design... Optical multilayer thin film structures have been widely used in numerous photonic applications.However,existing inverse design methods have many drawbacks because they either fail to quickly adapt to different design targets,or are difficult to suit for different types of structures,e.g.,designing for different materials at each layer.These methods also cannot accommodate versatile design situations under different angles and polarizations.In addition,how to benefit practical fabrications and manufacturing has not been extensively considered yet.In this work,we introduce OptoGPT(Opto Generative Pretrained Transformer),a decoder-only transformer,to solve all these drawbacks and issues simultaneously. 展开更多
关键词 multilayer thin film structure inverse design foundation models deep learning structural color
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On the Innovation,Design,Construction,and Experiments of OMEGA-Based SSPS Prototype:The Sun-Chasing Project 被引量:2
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作者 Baoyan Duan Yiqun Zhang +5 位作者 Guangda Chen Ze Zhao Jianwei Mi Xun Li Lin Yang Xi Li 《Engineering》 SCIE EI CAS CSCD 2024年第5期90-101,共12页
This study systematically introduces the development of the world’s first full-link and full-system ground demonstration and verification system for the OMEGA space solar power satellite(SSPS).First,the OMEGA 2.0 inn... This study systematically introduces the development of the world’s first full-link and full-system ground demonstration and verification system for the OMEGA space solar power satellite(SSPS).First,the OMEGA 2.0 innovation design was proposed.Second,field-coupling theoretical models of sunlight concentration,photoelectric conversion,and transmitting antennas were established,and a systematic optimization design method was proposed.Third,a beam waveform optimization methodology considering both a high beam collection efficiency and a circular stepped beam shape was proposed.Fourth,a control strategy was developed to control the condenser pointing toward the sun while maintaining the transmitting antenna toward the rectenna.Fifth,a high-efficiency heat radiator design method based on bionics and topology optimization was proposed.Sixth,a method for improving the rectenna array’s reception,rectification,and direct current(DC)power synthesis efficiencies is presented.Seventh,high-precision measurement technology for high-accuracy beam-pointing control was developed.Eighth,a smart mechanical structure was designed and developed.Finally,the developed SSPS ground demonstration and verification system has the capacity for sun tracking,a high concentration ratio,photoelectric conversion,microwave conversion and emission,microwave reception,and rectification,and thus satisfactory results were obtained. 展开更多
关键词 OMEGA-SSPS Full-link and full-system Beam collection efficiency Circular stepped beam shape Smart structure Field coupling theoretical model `Beam pointing control
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