Achieving Improved/Reversed Tension–Compression Asymmetry by Tailoring Extrusion Processing for Mg–Sn(–Y) Alloy

Ying Zeng,Xunfei Xiong,Xiaoying Qian,Dabiao Xia,Xin Shang,Bin Jiang,Dongdi Yin 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.7

Significant tension-compression (T–C) yield asymmetry in common wrought Mg alloys hinders their widespread applications. A double extrusion process with variable speed and partially substituted yttrium (Y) (2 wt%) for Sn was proposed to improvethe T–C asymmetry of Mg–2.5Sn (wt%) alloy, and then to explore the critical grain size parameter for T–C symmetry. Theresult showed that the individual double extrusion or partial substitution of Sn by Y slightly refined the grains of Mg–2.5Snalloy (from ~ 42.5 μm to 35.5 μm and 31.2 μm, respectively), along with the improved T–C asymmetry (CYS/TYS) from0.44 to 0.51 and 0.75, respectively. When combining the above two factors, the double-extruded Mg–Sn–Y alloys obtainedfine grains with ~ 8.8 μm and gained a T–C yield symmetry (CYS/TYS = 1.01). By tailoring the extrusion speed from theprevious 1.2 mm/s to 2 mm/s, the grain size of double-extruded Mg–Sn–Y further deduced to ~ 5.6 μm and turned to be areversed T–C asymmetry (CYS/TYS) of 1.37. The refined grain size combined with weakened texture led to a decreasedactivation or even inhibition of tension twinning and increased activation of non-basal slip, which might be the main reasonfor the improved or even reversed T–C asymmetry in double-extruded Mg–0.5Sn–2Y.

First Principle and Experimental Study for Site Preferences of Formability Improved Alloying Elements in Mg Crystal

Ying Zeng,Bin Jiang,Ouling Shi,Gaofen Quan,Salih Al-Ezzi,FuSheng Pan 대한금속·재료학회 2018 METALS AND MATERIALS International Vol.24 No.4

Some alloying elements (Al, Er, Gd, Li, Mn, Sn, Y, Zn) were proved recently by calculations or experiments to improve theformability of Mg alloys, but ignoring their site preference in Mg crystals during the calculated process. A crystallographicmodel was built via fi rst principle calculations to predict the site preferences of these elements. Regularities between dopingelements and site preferences were summarized. Meanwhile, in the basis of the crystallographic model, a series of formulaswere deduced combining the diff raction law. It predicted that a crystal plane with abnormal XRD peak intensity of the Mgbasedsolid solutions, compared to that of the pure Mg, prefers to possess solute atoms. Thus, three single-phase solid solutionalloys were then prepared through an original In-situ Solution Treatment, and their XRD patterns were compared. Finally,the experiment further described the site preferences of these solute atoms in Mg crystal, verifying the calculation results.

Health management of laser rangefinder considering maximum continuous working time

Ying Zeng,Hai-Tao Chen,Yu-Jin Wei,Yuan Chen,Hong-Zhong Huang 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.10

High-power lasers have severe thermal effects. The heat buildup during longterm operation will increase the threshold current of the laser and the internal defects, which will seriously affect the lifetime of the device. A temperature sensor is difficult to install on the laser rangefinder due to the small size of the solid-state laser device. Considering this situation, this work analyses the thermal mechanism of the laser rangefinder and proposes a temperature calculation method for the crystal working substance inside the laser rangefinder based on the finite element simulation to obtain the crystal center temperature and thermal model with the working time. Then, the prediction model of the maximum continuous working time of the laser can be obtained. The proposed model can provide an early scientific warning for the remaining continuous working time of the solid-state laser and improve the single-shot utilization of the solid-state laser to a certain extent. A comprehensive health management framework of laser rangefinders including FMEA is also proposed.

The Symbiosis of Art Festivals and Art Healing: The Big Anxiety Festival as an Example

曾莹(Ying ZENG) Korea Institute for Humanities and Social Sciences 2024 Journal of Global Arts Studies (JGAS) Vol.2 No.1

【背景】近年来,由于抑郁症引发的社会惨案频发,焦虑情绪在不同时间、不同程度地影响着每一个人,艺术疗愈作为一种干预心理健康的科学而有效的手段颇受公众青睐,它具体的研究领域覆盖心理学、艺术与教育等多方面。当代视觉艺术家与心理研究人员建立了合作关系,艺术作品、艺术场所、艺术家等都与艺术疗愈建立紧密关系。 【目的】艺术节不仅是展览艺术或创造审美体验的场所,更是架构在艺术与社会之间的桥梁,艺术节与艺术疗愈的合作为公众提供了“心灵庇护”的场所。 【方法】本研究通过阐述传统艺术节的内涵,结合澳大利亚“大焦虑节”具体实例分析。 【结果】本文立足于对艺术疗愈心理问题的关注,为考察艺术节与艺术疗愈共生下艺术对公众心理问题的可干预性。 【结论】通过分析澳大利亚大焦虑节中不同活动中艺术与心理健康的碰撞,深入探讨艺术疗愈主导下艺术作品的走向以及未来艺术节的发展,以期满足人们日益增长的精神文化需求。 [Background] In recent years, due to the frequent occurrence of social tragedies caused by depression, anxiety affects everyone at different times and to different degrees. Art healing, as a scientific and effective means of intervening in mental health, is quite popular among the public, and its specific fields of research cover a wide range of aspects such as psychology, art and education. Contemporary visual artists have established cooperative relationships with psychological researchers, and artworks, art venues, and artists have all established close relationships with art healing. [Objective] Art festivals are not only venues for exhibiting art or creating aesthetic experiences, but also a bridge between art and society, and the collaboration between art festivals and art healing provides the public with a place of “spiritual refuge”. [Method] This study analyzes the connotation of traditional art festivals, and combines it with specific examples of the Great Anxiety Festival in Australia. [Result] This paper is based on the concern of art healing psychological problems, in order to examine the intervention of art on public psychological problems under the symbiosis of art festivals and art healing. [Conclusion] By analyzing the collision between art and mental health in different activities of the Great Australian Anxiety Festival, we will discuss the direction of art works under the leadership of art healing and the development of future art festivals, in order to satisfy people's growing spiritual and cultural needs.

선진국 시각디자인 분야의 NCS을 기준으로 바라본 중국 기존 NCS 문제에 대한 연구

증영(Zeng, Ying),김영삼(Kim, Yong Sam) 한국디자인리서치학회 2022 한국디자인리서치 Vol.7 No.1

본 연구는 시각디자인 분야의 직무능력표준에 초점을 맞추고 있으며 영국, 미국, 한국, 호주의 국가직무능력표준에 대해 분석하고, 여러 국가 시각디자인 분야의 직무능력표준을 비교함으로써 중국 직무능력표준에 존재하는 문제점을 찾아내기 위함이다. 연구방법으로는 문헌 연구 및 자료수집을 통해 선진국 시각디자인 분야의 직무능력표준에 관한 자료를 수집하여 비교분석하는 것이다. 본 연구의 결론은 다음과 같다. 첫째, 중국 시각디자인 분야의 직무능력표준은 업계 현황을 잘 반영하지 못하고 있다. 둘째, 직무역량을 조사할 때 직무요건을 명확히 구분할 수 없다. 셋째, 과거에 제정된 국가직업능력표준이 실제 생산과 동떨어져 있고 기업과 노동시장의 발전수요를 충족시키지 못하는 점이다. 넷째, 중국 시각디자인 분야의 기존 직무능력표준은 4년제 대학생의 직무능력 훈련에 적합하지 않다. This research focuses on the vocational ability standards in the visual design field, and analyzes and compares the vocational ability standards of various countries in the visual design field, including Britain, the United States, South Korea and Australia, aiming to figure out the problems in the vocational ability standards. The research first collects the information of vocational ability standards in the visual design field in developed countries through literature and data collection, and then make a comparative analysis. The research conclusions are as follows: first, China s vocational ability standards in the visual design field fail to well reflect the industry status quo; second, when investigating the job competence, the job requirements cannot be clearly distinguished; third, the previous national vocational ability standards are disconnected from actual production, and can hardly meet the development needs of enterprises and labor market; fourth, the existing job competency standards in the visual design field in China are unfit for the vocational ability training of four-year college students.

지속가능한 도시 관광을 위해 주민 임파워먼트가 지속가능성 인식, 지지도 및 참여의도에 미치는 구조적 영향 관계 : 관광도시 경주를 중심으로

쩡잉(Ying Zeng),김남현(Namhyun Kim) 한국관광연구학회 2021 관광연구저널 Vol.35 No.6

Profiling Gene Expression During Gland Morphogenesis of a Glanded and a Glandless Upland Cotton

Ying-Fan Cai,Min Chen,Quan Sun,Yong-Fang Xie,Sheng-Wei Li,Jian-Chuan Mo,Ming-Feng Jiang,You-Lu Yuan,Yu-Zhen Shi,Huai-Zhong Jiang,Zheng Pan,Yun-Ling Gao,Peng-Sheng Ye,Hua-Lan Zeng 한국식물학회 2009 Journal of Plant Biology Vol.52 No.6

The pigment gland is an important character of the Gossypium plant. With the aim of identifying genes involved in pigment gland morphogenesis in cotton, gene expression during pigment gland morphogenesis in Chuan 2802, which is glanded both in seed and plant, and a glandless line N5 was profiled using Affymetrix Cotton microarray. The results showed that there were 564 differentially expressed genes greater than twofold during gland morphogenesis. About 60.2% of these genes shares similarity with known genes on GenBank and about 39.8% with no functional description in the database. These described genes may play roles in defense response, response to oxidative stress, peroxidase activity, and the other metabolic pathways. The KEGG Orthology-Based Annotation System indicated that these above twofold expressed genes involved seven biochemical pathways on KEGG. These findings suggest that a complicated regulation is associated with pigment gland morphogenesis and the associated defense response including gossypol biosynthesis in cotton.

Coevolution between Human's Anticancer Activities and Functional Foods from Crop Origin Center in the World

Zeng, Ya-Wen,Du, Juan,Pu, Xiao-Ying,Yang, Jia-Zhen,Yang, Tao,Yang, Shu-Ming,Yang, Xiao-Meng Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.6

Cancer is the leading cause of death around the world. Anticancer activities from many functional food sources have been reported in years, but correlation between cancer prevalence and types of food with anticancer activities from crop origin center in the world as well as food source with human migration are unclear. Hunger from food shortage is the cause of early human evolution from Africa to Asia and later into Eurasia. The richest functional foods are found in crop origin centers, housing about 70% in the world populations. Crop origin centers have lower cancer incidence and mortality in the world, especially Central Asia, Middle East, Southwest China, India and Ethiopia. Asia and Africa with the richest anticancer crops is not only the most important evolution base of humans and origin center of anticancer functional crop, but also is the lowest mortality and incidence of cancers in the world. Cancer prevention of early human migrations was associated with functional foods from crop origin centers, especially Asia with four centers and one subcenter of crop origin, accounting for 58% of the world population. These results reveal that coevolution between human's anticancer activities associated with functional foods for crop origin centers, especially in Asia and Africa.

A kind of core cross-linked ‘‘semi-amphiphilic” polymer assemblies for controlled release of corrosion inhibitors and autonomous corrosion alarm

Ying Cao,Aoqi Zhu,Jianmin He,Jianhua Wu,Mingjin Xue,Yiting Xu,Birong Zeng,Guorong Chen,Lizong Dai 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.115 No.-

A novel kind of core cross-linked assemblies formed from a ‘‘semi-amphiphilic” block copolymer, poly(syringaldehyde methacrylate)-block-poly (dopamine methacrylate-co-methyl methacrylate-costyrene)(PSMA-b-P(DMA-co-MMA-co-St)), was designed and served as the carrier for anti-corrosiveand corrosion detective molecules. Different from the core cross-linked micelles formed by the amphiphilicpolymers in water, the core cross-linked assemblies in this research were formed from the ‘‘semiamphiphilic”block copolymer, which took advantage of the different compatibility between epoxy andthe blocks in the polymer, leading to the self-assembly behavior happening in the organic resin, whilethey shared the advantages of traditional core cross-linked micelles with the properties of being stable,stimuli-responsive and multifunctional. The pH-responsive properties of the assemblies and their complexationwith Fe3+ caused by the corrosion of the steel were confirmed by UV spectrophotometry andXPS analysis of the corrosive products. The controlled release of corrosion inhibitors was fully reflectedby the expansion of the capacitor ring and the increase of the coating resistance (Rc) with the extensionof the immersion time, which was got via fitting the electrochemical impedance spectroscopy (EIS) datawith the equivalent electric circuits. Ultimately, the anti-corrosive mechanism of smart coating with thefunctional core cross-linked assemblies were also illustrated.

Secure deterministic communication scheme based on quantum remote state preparation

Ying, Guo,Zhi-Gang, Chen,Gui-Hua, Zeng GORDON AND BREACH 2007 CHINESE PHYSICS -BEIJING- Vol.16 No.9

<P>Based on the techniques of the quantum remote state preparation via a deterministic way, this paper proposes a quantum communication scheme to distribute the secret messages in two phases, i.e., the carrier state checking phase and the message state transmitting phase. In the first phase, the secret messages are encoded by the sender using a stabilizer quantum code and then transmitted to the receiver by implementing three CNOT gates. In the second phase, the communicators check the perfectness of the entanglement of the transmitted states. The messages can be distributed to the receiver even if some of the transmitted qubits are destroyed.</P>