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FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 1-3 doi: 10.15302/J-FASE-2023491

Abstract: FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Keywords： TRANSFORMATION     SYSTEMS     FOOD     CONCEPTS     MECHANISMS    

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Protecting traditional knowledge of Chinese medicine: concepts and proposals

Changhua Liu, Man Gu

Frontiers of Medicine 2011, Volume 5, Issue 2,   Pages 212-218 doi: 10.1007/s11684-011-0142-x

Abstract: With the development of the knowledge economy, knowledge has become one of the most important resources for social progress and economic development. Some countries have proposed measures for the protection of their own traditional knowledge. Traditional Chinese medicine belongs to the category of intangible cultural heritage because it is an important part of Chinese cultural heritage. Today the value of traditional knowledge of Chinese medicine has been widely recognized by the domestic and international public. This paper discusses the definition of traditional knowledge of Chinese medicine and its protection, and evaluates research on its classification. We review the present status of the protection of traditional knowledge of Chinese medicine and tentatively put forward some possible ideas and methods for the protection of traditional knowledge of Chinese medicine. Our goal is to find a way to strengthen the vitality of traditional Chinese medicine and consolidate its foundation. We believe that if we could establish a suitable ( is a Latin term meaning “of its own kind” and is often used in discussions about protecting the rights of indigenous peoples. Here we use it to emphasize the fact that protection of traditional knowledge of Chinese medicine cannot be achieved through existing legal means of protection alone due to its unique characteristics) system for traditional knowledge, a more favorable environment for the preservation and development of traditional Chinese medicine will ultimately be created.

Keywords： protection of traditional knowledge     traditional Chinese medicine     intellectual property     sui generis system    

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Human-cyber-physical systems: concepts, challenges, and research opportunities

Zhiming Liu, Ji Wang,zhimingliu88@swu.edu.cn,jiwang@ios.ac.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 11,   Pages 1535-1670 doi: 10.1631/FITEE.2000537

Abstract: historic background of human-cyber-physical systems (HCPSs), and then introduce and clarify important concepts
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Ecological conservation, remediation and construction for building an ecological civilization in China: concepts

Guofang SHEN

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 4,   Pages 376-379 doi: 10.15302/J-FASE-2017186

Abstract: This paper explains and discusses the concepts of ecological conservation and construction in China in

Keywords： ecological conservation     development     construction ”     description     important governmental    

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The origins of schedule management: the concepts used in planning, allocating, visualizing and managing

Lynda M. BOURNE, Patrick WEAVER

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 150-166 doi: 10.15302/J-FEM-2018012

Abstract: This paper traces the development of the concepts most project managers take for granted including barThe first section of the paper looks at the development of concepts that allow the visualization of time

Keywords： time management     scheduling     CPM     PERT     Gantt     Critical Path     bar chart    

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Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 394-408 doi: 10.1007/s11709-016-0352-z

Abstract: This paper is categorized into two parts. (1) A frame work to design the aircraft wing structure and (2) analysis of a morphing airfoil with auxetic structure. The developed design frame work in the first part is used to arrive at the sizes of the various components of an aircraft wing structure. The strength based design is adopted, where the design loads are extracted from the aerodynamic loads. The aerodynamic loads acting on a wing structure are converted to equivalent distributed loads, which are further converted point loads to arrive at the shear forces, bending and twisting moments along the wing span. Based on the estimated shear forces, bending and twisting moments, the strength based design is employed to estimate the sizes of various sections of a composite wing structure. A three dimensional numerical model of the composite wing structure has been developed and analyzed for the extreme load conditions. Glass fiber reinforced plastic material is used in the numerical analysis. The estimated natural frequencies are observed to be in the acceptable limits. Furthermore, the discussed design principles in the first part are extended to the design of a morphing airfoil with auxetic structure. The advantages of the morphing airfoil with auxetic structure are (i) larger displacement with limited straining of the components and (ii) unique deformation characteristics, which produce a theoretical in-plane Poisson’s ratio of −1. Aluminum Alloy AL6061-T651 is considered in the design of all the structural elements. The compliance characteristics of the airfoil are investigated through a numerical model. The numerical results are observed to be in close agreement with the experimental results in the literature.

Keywords： wing design     aerodynamic loads     morphing airfoil     auxetic structures     negative Poisson’s ratio    

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Redox flow batteries—Concepts and chemistries for cost-effective energy storage

Matthäa Verena HOLLAND-CUNZ, Faye CORDING, Jochen FRIEDL, Ulrich STIMMING

Frontiers in Energy 2018, Volume 12, Issue 2,   Pages 198-224 doi: 10.1007/s11708-018-0552-4

Abstract: Electrochemical energy storage is one of the few options to store the energy from intermittent renewable energy sources like wind and solar. Redox flow batteries (RFBs) are such an energy storage system, which has favorable features over other battery technologies, e.g. solid state batteries, due to their inherent safety and the independent scaling of energy and power content. However, because of their low energy-density, low power-density, and the cost of components such as redox species and membranes, commercialised RFB systems like the all-vanadium chemistry cannot make full use of the inherent advantages over other systems. In principle, there are three pathways to improve RFBs and to make them viable for large scale application: First, to employ electrolytes with higher energy density. This goal can be achieved by increasing the concentration of redox species, employing redox species that store more than one electron or by increasing the cell voltage. Second, to enhance the power output of the battery cells by using high kinetic redox species, increasing the cell voltage, implementing novel cell designs or membranes with lower resistance. The first two means reduce the electrode surface area needed to supply a certain power output, thereby bringing down costs for expensive components such as membranes. Third, to reduce the costs of single or multiple components such as redox species or membranes. To achieve these objectives it is necessary to develop new battery chemistries and cell configurations. In this review, a comparison of promising cell chemistries is focused on, be they all-liquid, slurries or hybrids combining liquid, gas and solid phases. The aim is to elucidate which redox-system is most favorable in terms of energy-density, power-density and capital cost. Besides, the choice of solvent and the selection of an inorganic or organic redox couples with the entailing consequences are discussed.

Keywords： electrochemical energy storage     redox flow battery     vanadium    

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Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 210-216 doi: 10.1007/s11709-012-0165-7

Abstract: A uniaxial tension test is commonly used to determine the mechanical properties of steel, but it has no meaning for the response of the material in a structure. The test was developed as a consensus solution by producers, fabricators, designers and code writers, to have a standard by which similar materials could be compared to a common base. It does not represent the actual behavior of the steel in a structure, and was never intended to do so. To study the true behavior of the structure and how the material responds it would be better to determine the strains and deformations that will take place during actual service condition. Such characteristics reflect the real behavior, whether in the elastic or inelastic range. If stresses or forces are needed, these are easily determined by the value of the strain and the relevant material modulus, along with the type of cross section, whether elastic or inelastic. The paper addresses the properties of a range of structural steels, how these are incorporated into design standards and how the standards define deformation characteristics and demands for bolted and welded connections.

Keywords： steel     stress-strain characteristics     tension test     strain design     actual behavior     improved design codes    

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Filtering antennas: from innovative concepts to industrial applications Review Articles

Yun-fei CAO, Yao ZHANG, Xiu-yin ZHANG

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 116-127 doi: 10.1631/FITEE.1900474

Abstract: A filtering antenna is a device with both filtering and radiating capabilities. It can be used to reduce the cross-band mutual coupling between the closely spaced elements operating at different frequency bands. We review the authors’ work on filtering antenna designs and three related dual-band base-station antenna arrays as application examples. The filtering antenna designs include single- and dual-polarized filtering patch antennas, a single-polarized omni-directional filtering dipole antenna, and a dual-polarized filtering dipole antenna for the base station. The filtering antennas in this paper feature an innovative concept of eliminating extra filtering circuits, unlike other available antennas. For each design, the filtering structure is finely integrated with the radiators or feeding lines. As a result, the proposed designs have the advantages of compact size, simple structure, good in-band radiation performance, and low levels of loss, and do not contain complicated filtering circuits. Based on the proposed filtering antennas, single- and dual-polarized dual-band antenna arrays were developed. Separate antenna elements at different frequency bands were used to achieve the dual-band performance. The cross-band mutual couplings between the elements at different bands were reduced substantially using the antenna inherent filtering performance. The dual-band arrays exhibited better performance as compared to typical industrial products. Some of the proposed technologies have been transferred into the industry.

Keywords： Filtering antenna     Dual-band     Antenna array    

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Discussion on Integrated Environment Control Thermal Management System Concepts for Hypersonic Vehicle

Wang Peiguang,Liu Yongji, Wang Jun

Strategic Study of CAE 2007, Volume 9, Issue 2,   Pages 38-48

Abstract: management system using endothermic fuels as heat sink was advanced.Key technologies concerning these concepts

Keywords： hypersonic     vehicle     thermal management    

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Puguang gas gathering system security design concepts and cognition

Li Shijie,Fan Chengwu,Nie Shirong

Strategic Study of CAE 2010, Volume 12, Issue 10,   Pages 65-69

Abstract:

It is proved that the design of Puguang gas gathering system is designed with innovation. These aspects, such as technics route, general layout, security design, emergency preparedness and rescue support system are advanced, reasonable and feasible. In particular, the design and integration operation rate of control and SIS(safety instrumented system) is high, and gathering system is controllable and effective. Security design concept are effectively implemented in the following six key issues: advanced transportation technology; reasonable material and device selection; complete control and monitoring techniques; emergency response plans and emergency broadcasting; corrosion control and monitoring techniques; smart pigging technology and general pigging operations. Puguang gathering design projects realized the aims of being domestic first-class and international leading. It can be used as reference for other domestic similar projects.

Keywords： Puguang Gas Field     gas gathering system     design concept    

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Critical Examination of Safety Science

Fu Gui,Zhang Jiangshi,Xu Surui

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 12-16

Abstract: comprehensive analysis of many contributions by scientists in accident and injury prevention field, 6 basic concepts

Keywords： safety science     structure frame     research objects     accident prevention     basic concepts     axiom    

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New Concepts and Technology Evolutions in Scientific Coal Mining

Xie Heping,Wang Jinhua,Jiang Pengfei,Liu Jianzhong,Wu Gang,Zhou Hongwei and Ren Huaiwei

Strategic Study of CAE 2015, Volume 17, Issue 9,   Pages 36-41

Abstract: strategic direction of coal mining technology evolutions is proposed based on scientific coal mining concepts

Keywords： coal     scientific mining     technology evolution     strategic direction    

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Spatial fading channel emulation for over-the-air testing of millimeter-wave radios: concepts and experimental

Wei Fan, Lassi Hentilä, Pekka Kyösti,wfa@es.aau.dk

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4,   Pages 548-559 doi: 10.1631/FITEE.2000484

Abstract: Millimeter-wave (mmWave) communication is regarded as the key enabling component for fifth-generation (5G) cellular systems due to the large available spectrum bandwidth. To make mmWave new radio (NR) a reality, tremendous efforts have been exerted from the industry and academia. Performance evaluation of mmWave NR is a mandatory step and the key to ensuring the success of mmWave 5G deployment. Over-the-air (OTA) radiated method of testing mmWave NR in laboratory conditions is highly attractive, since it facilitates virtual field testing of mmWave devices in realistic propagation conditions. In this paper, we first discuss the need for and challenges in OTA measurement of mmWave 5G NR under fading channel conditions. After that, two promising candidate solutions, i.e., wireless cable and multi-probe anechoic chamber (MPAC), are detailed. Their principles, applicability for mmWave NR, and main challenges are discussed. Furthermore, preliminary experimental validation results in a frequency range 2 anechoic chamber are demonstrated for the wireless cable and MPAC methods at 28 GHz.

Keywords： 空间信道模型；空口测试；无线线缆；多探头电波暗室；FR2验证    

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Concepts for the Construction of a New National Drug Service System

Wang Jian,Yuan Chunping,Wang Hao,Zhang Zhirong,Zhang Qiang,Chen Guiliang,Liu Changxiao,Hou Huimin and Yang Shengli

Strategic Study of CAE 2017, Volume 19, Issue 2,   Pages 62-67 doi: 10.15302/J-SSCAE-2017.02.010

Abstract:

Although the current drug service system can meet the fundamental needs of healthcare in China, outstanding issues exist in all service sectors, including research and development, manufacturing, marketing, and clinical use. Through a literature search, data queries, specialist consultation, and a panel discussion, this study investigated the current status of the drug service system and identified the main problems. We propose an idea for constructing a new national drug service system to provide drugs to the Chinese people that are of high quality, have a reliable therapeutic effect, come at a reasonable price, and exhibit good medical compliance, thus ensuring the efficacy, safety, availability, and reasonability of drugs for clinical use, as well as promoting a structural transformation of the pharmaceutical industry that will enable China to finally transition from a big country into a great power in the global pharmaceutical industry.

Keywords： drug     service system     pharmaceutical industry     supervision     development strategy    

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Title Author Date Type Operation

FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Journal Article

Protecting traditional knowledge of Chinese medicine: concepts and proposals

Changhua Liu, Man Gu

Journal Article

Human-cyber-physical systems: concepts, challenges, and research opportunities

Zhiming Liu, Ji Wang,zhimingliu88@swu.edu.cn,jiwang@ios.ac.cn

Journal Article

Ecological conservation, remediation and construction for building an ecological civilization in China: concepts

Guofang SHEN

Journal Article

The origins of schedule management: the concepts used in planning, allocating, visualizing and managing

Lynda M. BOURNE, Patrick WEAVER

Journal Article

Design concepts of an aircraft wing: composite and morphing airfoil with auxetic structures

P R BUDARAPU,Sudhir Sastry Y B,R NATARAJAN

Journal Article

Redox flow batteries—Concepts and chemistries for cost-effective energy storage

Matthäa Verena HOLLAND-CUNZ, Faye CORDING, Jochen FRIEDL, Ulrich STIMMING

Journal Article

Concepts and implementation of strain-based criteria in design codes for steel structures

Reidar BJORHOVDE

Journal Article

Filtering antennas: from innovative concepts to industrial applications

Yun-fei CAO, Yao ZHANG, Xiu-yin ZHANG

Journal Article

Discussion on Integrated Environment Control Thermal Management System Concepts for Hypersonic Vehicle

Wang Peiguang,Liu Yongji, Wang Jun

Journal Article

Puguang gas gathering system security design concepts and cognition

Li Shijie,Fan Chengwu,Nie Shirong

Journal Article

Critical Examination of Safety Science

Fu Gui,Zhang Jiangshi,Xu Surui

Journal Article

New Concepts and Technology Evolutions in Scientific Coal Mining

Xie Heping,Wang Jinhua,Jiang Pengfei,Liu Jianzhong,Wu Gang,Zhou Hongwei and Ren Huaiwei

Journal Article

Spatial fading channel emulation for over-the-air testing of millimeter-wave radios: concepts and experimental

Wei Fan, Lassi Hentilä, Pekka Kyösti,wfa@es.aau.dk

Journal Article

Concepts for the Construction of a New National Drug Service System

Wang Jian,Yuan Chunping,Wang Hao,Zhang Zhirong,Zhang Qiang,Chen Guiliang,Liu Changxiao,Hou Huimin and Yang Shengli

Journal Article