分类: 工程与技术科学 >> 工程与技术科学其他学科 提交时间: 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要: This paper briefly discusses the important role of TRIZ theory in cultivating innovative talents in product design majors, analyzes the current application of TRIZ theory teaching methods in China, introduces TRIZ theory into the teaching mode of product design studio. And this paper introduces in detail the principles of invention and contradiction matrix, separation principle, the teaching method of the matter-field model, the effective application methods in students' study, practice, competition, participation in enterprise projects and scientific research projects, and the application of TRIZ theory combined with other research methods in teaching is prospected.
分类: 工程与技术科学 >> 工程与技术科学其他学科 提交时间: 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要: This paper provides a systematic review of papers in children's furniture design research through the CiteSpace visualization tool. We analyzed 446 papers on this field of research from CNKI and found the most influential publications, authors, journals, and institutions. In addition, we explored the current status of hotspots in this research field and predicted the future development trend through the analysis of keywords and Burst Keywords. The results show that the research field of children's furniture design in China is divided into ten major clusters, which can be grouped into three research areas, namely, basic research on children's furniture design, child-oriented design concept, and principles of children's furniture design. The future trends of children's furniture design are safety, child-centred, and humanization. The analysis of the research results in this field through CiteSpace software can enhance the understanding of the research in this field and provide a partial reference for the future research field of children's furniture design.
分类: 物理学 >> 普通物理:统计和量子力学,量子信息等 提交时间: 2017-05-02
摘要: A novel PM spherical actuator based on three- dimensional pole array is proposed and developed in this paper. Conventionally, 2D pole arrays are widely employed in the design of spherical actuators, which constraints the system torque output greatly. The concept of 3D pole array is aimed at improving the torque performance. The torque has been analyzed and the corresponding analytical model is established based on curve fitting method (CFM) due to the importantance to real-time control. Magnetic force has been studied in a similar way. The results shows that the modeling method has a relatively high precision and can be further used in the real-time control.
分类: 物理学 >> 核物理学 提交时间: 2016-09-22
摘要: The design and performance analysis of DC electron gun for 5045 S-band klystron has been worked out using SLAC beam trajectory program (EGUN) and Computer Simulation Technology Particle Studio (CST-PS), Codes. Specifications of electron gun were focused on beam; current, perveance, size and emittance. Optimized beam; current, perveance, diameter and emittance were 414.00A, 2.00uP, 26.82 mm and 103.10 pi mm mrad, respectively. Furthermore, the optimized characteristic parameters of the gun were also calculated and compared with the simulated and experimental values which were in agreement. Accuracy of simulation was verified by comparison of emitted beam current which has error of zero percent.
分类: 核科学技术 >> 裂变堆工程技术 提交时间: 2023-06-18 合作期刊: 《Nuclear Science and Techniques》
摘要: Tritium self-sustain and circulation is the core problem to use fusion energy peacefully. As the core component of the breeder in-pile irradiation test, the irradiation tritium production device provides irradiation space for breeders' tritium production and release. We take the Li4SiO4 as the research object and design the structure of the irradiation device. We complete the physical parameters computation, the irradiation device safety analysis and the flow field analysis of the breeder refueling, realizing the adjusting of the breeder irradiation temperature and the tritium release temperature window and making the control of gas operational parameters come true. The data could provide reference for breeders in-pile irradiation research.
分类: 工程与技术科学 >> 工程与技术科学其他学科 提交时间: 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要: This article explores the context in which Chinese contemporary design history is situated, and distinguishes the differences between the modernity embodied in the contemporary contexts of East and West. This study adopts grounded theory to analyze the interview data through a threelevel coding strategy, and focus on explaining the core themes formed by the selective coding. The study reveals three core themes to explain the contemporary context of Chinese contemporary design history. These core themes are the discontinuity between tradition and contemporaneity, the spatialization of time of historical evolution, and the contemporary design history dominated by popular aesthetics, which together reflect the special modernity of the contemporary Chinese context. The findings suggest that the narrative of Chinese contemporary design history needs to take into account the Chinese contemporary context, which fill the gap of the absence of Chinese contemporary design history in world design history. This study is the first application of grounded theory in the field of Chinese contemporary design history. As a result, these design history studies in developing countries can construct a contemporary design history that is different from the Western world, and then together constitute the world design history.
分类: 材料科学 >> 纳米科学和纳米技术 提交时间: 2016-12-22
摘要: An AlGaN/GaN metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) on Si substrates was obtained with 18 nm Si3N4 grown by low pressure chemical vapor deposition (LPCVD) as gate insulator, The MIS-HEMTs show high Idss of 16.8 A@Vg=3 V, high breakdown voltage of 600 V and a low specific on-resistance of 2.3. The power device figure of merit V2BV/Ron=157MW·cm-2. Furthermore, the good insulation effects of LPCVD-Si3N4 were also demonstrated by the low gate leakage current of below Ig=154 nA@Vds=600 V and Vgs=-14 V. The high Idss, low specific on-resistance and high breakdown voltage show the potential and advantages of GaN MIS-HEMTs for power switching applications.
分类: 生物学 >> 生物物理学 提交时间: 2016-05-11
摘要: Cyanohydrin derivatives as enterovirus 71 (EV71) 3C protease (3C(pro)) inhibitors have been synthesized and assayed for their biochemical and antiviral activities. Compared with the reported inhibitors, cyanohydrins (1S,2S,2'S,5S)-16 and (1R,2S,2'S,5S)-16 exhibited significantly improved activity and attractive selectivity profiles against other proteases, which were a result of the specific interactions between the cyanohydrin moiety and the catalytic site of 3C(pro). Cyanohydrin as an anchoring group with high selectivity and excellent inhibitory activity represents a useful choice for cysteine protease inhibitors.
分类: 核科学技术 >> 粒子加速器 提交时间: 2023-06-18 合作期刊: 《Nuclear Science and Techniques》
摘要: In order to improve aerodynamic performance and efficiency, monitoring the geometry and position information of the internal structure with the aero-engine under various operational statuses is an important task. In this paper, a novel design of industrial computed tomography (ICT) system with a linac as x-ray source is proposed to complete the task. The major advantage of the proposed system is that it can provide visualized images of internal structures of the running aero-engine without physical disturbance, which makes it possible to extract the accurate geometry information. The main idea behind this design is to measure the projection data from various views for reconstructions making use of the rotations of the aero-engine blades, instead of the mechanical rotations in the conventional ICT system. However, due to high speed rotation of the aero-engine blades, the system faces more challenges than conventional ICT systems both in data acquisitions and reconstruction algorithms. The challenges and corresponding solutions are presented in this paper. In conclusion, the proposed ICT system provides a powerful tool for monitoring the running aero-engines.
分类: 核科学技术 >> 裂变堆工程技术 提交时间: 2023-06-18 合作期刊: 《Nuclear Science and Techniques》
摘要: In the nuclear reactor design, a code for automatically generated multi-temperature continuous-energy neutron cross section data library, which is called AMTND for short, was designed and developed to meet the need of the reactor core design coupled with thermal-hydraulic design. The code can provide a point-wise cross-section at any temperature for a Monte Carlo neutron transport program, such as MCNP. In ensuring that the nuclear data produced by AMTND meets the testing of critical benchmark experiments, the time-consumed by the nuclear data generating of AMTND compared with NJOYs was carried out and the result shows the codes excellence. In order to test the accuracy of the code, the Doppler coefficient test benchmark was also carried out and the results verified the code preliminarily.
分类: 工程与技术科学 >> 工程与技术科学其他学科 提交时间: 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要: In response to the short life cycle, serious waste of resources, and cumbersome steps in the product use process in the stationery market, from the perspective of sustainability and ergonomics, comprehensively apply the KANO model and TRIZ theory to study the improved design of stationery sets. Taking the target user as the interview object, firstly conduct user interviews and discover the pain points of the existing stationery sets on the market; propose improved demand points for the concentrated pain points, and conduct KANO questionnaire distribution and analysis to obtain the key requirements for improving user satisfaction; combine the key requirements , Using the 39-factor Altshuller contradiction matrix table provided by TRIZ theory and 40 invention principles, through comparison and screening, the final optimized design plan is obtained, which provides solutions for the improved design of stationery sets, so as to improve the product and the user, The relationship with the use environment, to achieve the purpose of product sustainability.
分类: 机械工程 >> 机械设计 提交时间: 2021-11-17
摘要: The biomimetic design provides an adequate solution to achieve an excellent design. However, the prototype space for biomimetic design is relatively large, and it becomes more and more challenging to find the required biological prototypes quickly and efficiently. In order to improve the design efficiency and enrich the means of biomimetic innovation, this paper proposes a biological knowledge-enabled bidirectional encoder representation from transformers (BERT) model to assist biomimetic design, namely BioDesign. We extract the biological strategies, functions and extract dimensional information from the Asknature as the data source. The linguistic expression model-BERT was used to recommend biomimetic strategies or functions combined with the biological strategies data. Finally, we take the biomimetic erosion wear resistant design of the valve core as an example and use the proposed BioDesign model to recommend biomimetic inspired functions. According to the recommended content of the BioDesign model, we obtained the erosion wear resistance strategies and designed the biomimetic structure. The erosion wear experiment proved the feasibility and effectiveness of the proposed method.
分类: 物理学 >> 普通物理:统计和量子力学,量子信息等 提交时间: 2017-05-02
摘要: this paper presents a novel design of a Powered Caster Wheel (PCW) that decouples the steering and rolling motions. The working principles and mechanical design of the PCW are introduced in details. Kinematic modeling, trajectory planning and control algorithms are derived for PCW-based omnidirectional mobile platforms. To demonstrate the new PCW design, a PCW prototype has been developed and an omnidirectional mobile platform based on the decoupled PCW has also been constructed and tested.
分类: 生物学 >> 生物物理学 >> 生物力学与生物流变学 提交时间: 2016-05-11
摘要: A natural biomaterial has been discovered with bactericidal activities, which is mainly attributed to its nanopatterned surface structure. The surface of Clanger cicada (Psaltoda claripennis) wings has been identified as a natural bactericidal material, which has lead to the emergence of research on the development of novel antibacterial surfaces. From the interactions between bacterial biofilms and nanopatterned surface structures, a new mechanical model is proposed that investigates the rupture of bacterial cells within the framework of the "stretching" theory. The effect of surface nanoroughness on the survival of bacterial cells is evaluated by determining the stretching ability of their cell walls. The results, calculated using Gram-positive and Gram-negative bacteria as examples, show a correlation between the stretching of the cell wall and the geometric parameters of the surface structures. The theoretical results indicate that for a given cell rigidity, the bactericidal nature of the surface is determined by the geometric parameters of the surface structures. (C) 2015 Elsevier Ltd. All rights reserved.
分类: 其他 >> 综合 提交时间: 2023-03-12 合作期刊: 《Art & Design Research》
摘要: Nowadays, China's elderly population base is expanding and the elderly people's health care product industry is booming, thus increasing the requirements for health care product packaging design. Relying on the application of longevity culture elements, we provide a boost to the design of health care products packaging for the elderly. Through field visits and questionnaires, we understand the needs of the elderly for health care products, analyse the shortcomings of the current health care product packaging design for the elderly, and draw up principles and measures for the application of longevity culture elements in the packaging of health care products for the elderly from the perspectives of text layout, colour and general awareness. Through the use of longevity culture elements, it will not only open up new areas for the inheritance and development of traditional longevity culture, but also meet consumers' consumption expectations.
分类: 工程与技术科学 >> 工程与技术科学其他学科 提交时间: 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要: In order to better realize the cultural and regional development of urban furniture design, achieve the purpose of promoting minority culture and inheriting excellent regional culture. This paper from the aspects of pattern, color, modelling three artistic features analysis was carried out on the architectural culture of dong, and build according to the principles and methods of dong architectural culture gene mapping, extract the cultural factor, after in artistic exaggeration, deformation, increase, decrease, finally the corresponding cultural factor into urban furniture design, The city furniture which not only meets the functional needs but also has the cultural implication is obtained. While spreading and carrying forward national culture, it also provides a new design idea for urban furniture design.
分类: 工程与技术科学 >> 工程与技术科学其他学科 提交时间: 2023-01-03 合作期刊: 《2022年第三届艺术设计、传播与工程科学研讨会》
摘要: With the gradual maturity of artificial intelligence, the field of artificial intelligence and print advertising has been widely combined, and the generation of print advertising intelligence has been widely used. However, AI generated print ads have gradually exposed its shortcomings in font design. Only relying on a single copyright font library for graphic combination, it is easy to cause the font and advertising theme is not appropriate, the font and brand image positioning is not consistent, and the font and advertising claims are not up to standard. Therefore, the introduction of machine learning font design into the field of print advertising has a certain practical value.
分类: 动力与电气工程 >> 工程热物理学 提交时间: 2017-03-31 合作期刊: 《热科学学报》
摘要: This paper presents the performance evaluation of a regenerative pump to increase its efficiency using optimal design method. Two design parameters which define the shape of the pump impeller, are introduced and analyzed. Pump performance is evaluated by numerical simulation and design of experiments(DOE). To analyze three-dimensional flow field in the pump, general analysis code, CFX, is used in the present work. Shear stress turbulence model is employed to estimate the eddy viscosity. Experimental apparatus with an open-loop facility is set up for measuring the pump performance. Pump performance, efficiency and pressure, obtained from numeri- cal simulation are validated by comparison with the results of experiments. Throughout the shape optimization of the pump impeller at the operating flow condition, the pump efficiency is successfully increased by 3 percent compared to the reference pump. It is noted that the pressure increase of the optimum pump is mainly caused by higher momentum force generated inside blade passage due to the optimal blade shape. Comparisons of pump in- ternal flow on the reference and optimum pump are also investigated and discussed in detail.
分类: 生物学 >> 生物物理学 提交时间: 2016-05-12
摘要: Radiative antenna techniques, e.g., dipole and monopole, have been proposed for radiofrequency (RF) coil array designs in ultrahigh field MRI to obtain stronger B-1 field and higher signal-to-noise ratio (SNR) gain in the areas deep inside human head or body. It is known that element decoupling performance is crucial to SNR and parallel imaging ability of array coil and has been a challenging issue in radiative antenna array designs for MR imaging. Magnetic wall or induced current elimination (ICE) technique has proven to be a simple and effective way of achieving sufficient decoupling for radiative array coils experimentally. In this study, this decoupling technique for radiative coil array was analyzed theoretically and verified by a simulation study. The decoupling conditions were derived and obtained from the theory. By applying the predicated decoupling conditions, the isolation of two radiative elements could be improved from about -8 dB to better than -35 dB. The decoupling performance has also been validated by current distribution along the radiative elements and magnetic field profiles in a water phantom. (c) 2015 Wiley Periodicals, Inc.
分类: 其他 >> 综合 提交时间: 2023-03-12 合作期刊: 《Art & Design Research》
摘要: Through the literature analysis of the current ecological perception theory and the related research content of tourism landscape design, it is found that the ecological perception theory is divided into two perspectives, namely, the perspective of human perception instinct and the perspective of environmental availability. Through field investigation, the status quo of tourism landscape design in Chengyang Bazhai Village is found.From the perspective of ecological consciousness theory analytical tourism landscape design elements, namely people subjective perception dimension elements dimensions, natural environment, artificial perception dimension element three aspects, and further to analyze, finally under the perspective of ecological consciousness people subjective aesthetic, environmental availability to forge, artificial perception three tourism landscape design strategy.Further build the tourism landscape design, and guide the tourist crowd to better integrate into the national cultural experience of Dong scenic spot from the tourism landscape design.This paper puts forward a new thinking on the landscape design of Dong rural tourism from the perspective of ecological perception and provides a reference for the landscape design of tourism in minority areas.