트랜스-히말라야어와 몽몐어의 시각에서 본 上古漢語의 咽頭音化假說

진위신(Chen, Yuxin),이경철(Lee, Kyong chul) 동북아시아문화학회 2023 동북아 문화연구 Vol.1 No.77

In Chinese historical phonology, the issue of Grade III has posed intricate challenges, including complexities like the elusive distinctions between Grade III and non-Grade III phonological features. Various theories have been proposed by the academic community over the years, such as the Long and Short Vowel Hypothesis, and the Initial Pharyngealization Hypothesis. This study primarily focuses on the Initial Pharyngealization Hypothesis in Old and Middle Chinese and conducts a comparative analysis of pharyngealization in both Chinese and Tangut languages. The research predominantly employs relational words between Chinese and Hmong-Mien languages, as well as cognates between Chinese and Tibetan languages. Simultaneously, it builds on the academic foundation laid by Chen Yuxin Lee Kyung-Chul and Xun Gong, embarking on a comprehensive comparative analysis. The findings unveil significant similarities between Chinese and Tangut languages concerning the ‘yod’ issue. Through two distinct investigations into Chinese-Tibetan cognates and Chinese-Hmong Mien relational words, this paper validates that the Grade III in Chinese is unrelated to ‘yod’. Moreover, the study of relational words from the Chinese and Mong-Mien languages further corroborates that non-Grade III in Chinese are intricately tied to pharyngealization. Drawing from the results, it can be concluded that the pharyngealization hypothesis in Chinese is underpinned by clear evidence. Furthermore, in future explorations within this domain, the author believes that a profound study of cognates in the Chinese-Bai languages holds significant merit.

咽頭音化假說에 대한 재검정

진위신(CHEN, Yuxin),이경철(LEE, Kyungchul) 동북아시아문화학회 2023 동북아시아문화학회 국제학술대회 발표자료집 Vol.2023 No.10

This study embarks on an intricate analysis of the unique characteristics that differentiate Class 3 and non-Class 3 syllables within the realm of Chinese phonology. Particular emphasis is placed on their historical manifestations in Old Chinese and Middle Chinese, two crucial periods in the evolution of the Chinese language. Utilizing scientific statistical techniques—specifically, Chi-Squared tests, Yates correction, and Fisher’s Exact tests—this research aims to bolster the precision and dependability of its conclusions. In an innovative move to broaden the scope, our research sample transcends the limitations of internal Chinese lexical material. We also incorporate related vocabulary from Sino-Hmong-Mien and Sino-Kuki-Chin (Mizo) languages. This multi-lingual approach offers a more comprehensive lens through which the unique features of Class 3 and non-Class 3 syllables can be examined and verified. The studys findings robustly corroborate the prior work of Chen Yuxin and Lee Kyung Chul (2022), solidifying the argument that the primary differentiating factor between Class 3 and non-Class 3 syllables in Old Chinese is their opposition based on pharyngeal prenuclear glides. Remar kably, these glides are observed to undergo an evolutionary shift towards *j prenuclear glides during the Middle Chinese period. By deploying a series of rigorous scientific validations, this study doesnt just validate previous theories but strives to lay a stronger foundation for future research in Chinese phonology. Such rigorous methodologies and expanded dataset are expected to be instrumental in refining our understanding of historical linguistic shifts and providing a more robust theoretical framework for subsequent scholarly endeavors in the domain of Chinese phonology.

Information Recovery From Pairwise Measurements

Chen, Yuxin,Suh, Changho,Goldsmith, Andrea J. IEEE 2016 IEEE Transactions on Information Theory Vol.62 No.10

<P>This paper is concerned with jointly recovering n node variables {x(i)}(1 <= i <= n) from a collection of pairwise difference measurements. Imagine we acquire a few observations taking the form of x(i) - x(j); the observation pattern is represented by a measurement graph G with an edge set E, such that x(i) - x(j) is observed if and only if (i, j) is an element of E. To account for noisy measurements in a general manner, we model the data acquisition process by a set of channels with given input/output transition measures. Employing information-theoretic tools applied to channel decoding problems, we develop a unified framework to characterize the fundamental recovery criterion, which accommodates general graph structures, alphabet sizes, and channel transition measures. In particular, our results isolate a family of minimum channel divergence measures to characterize the degree of measurement corruption, which together with the size of the minimum cut of G dictates the feasibility of exact information recovery. For various homogeneous graphs, the recovery condition depends almost only on the edge sparsity of the measurement graph irrespective of other graphical metrics; alternatively, the minimum sample complexity required for these graphs scales like (n log n)/(Hel(1/2)(min)) for certain information metric Hel(1/2)(min) defined in the main text, as long as the alphabet size is not super-polynomial in n. We apply our general theory to three concrete applications, including the stochastic block model, the random corruption model, and the haplotype assembly problem. Our theory leads to orderwise tight recovery conditions for all these scenarios.</P>

Electrokinetic techniques, their enhancement techniques and composite techniques with other processes for persistent organic pollutants remediation in soil: A review

Yuxin Chen,Dan Zhi,Yaoyu Zhou,Anqi Huang,Shikang Wu,Bin Yao,Yifei Tang,Chaoran Sun 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.97 No.-

Persistent organic pollutants (POPs) in soil have caused widespread concern, which is necessary to developefficientand greentechnologies.Electrokinetic (EK)remediationtechnology,theirenhancementtechniquesand composite techniques with other processes have shown broad application prospects in thefield of soilPOPs remediation. In this paper, the progressof EK remediation technology in the remediation of POPs in soilin recent years is reviewed. It can be seen that some technologies need to be further studied and evaluated,and it is inappropriate to simplycompare them.The effectoffield remediation is boundto be affected byfieldconditions,andthefinal datawill be differentfromthelaboratory data. Some emerging technologies,such asadvanced oxidation technology and nanotechnology, demonstrated high POPs removal rates when coupledwith EK remediation technology. This paper provides some insights into the future development of thetechnology and provides reference for the selection of technology in practical application.

시노티베트어의 체인 시프트에 대하여

진위신(CHEN, Yuxin),이경철(LEE, Kyong chul) 동북아시아문화학회 2022 동북아시아문화학회 국제학술대회 발표자료집 Vol.2022 No.11

상고한어의 을류운부에 관한 세 가지 문제점

진위신(Chen, Yuxin),이경철(Lee, KyungChul) 동아시아일본학회 2024 일본문화연구 Vol.- No.89

This paper conducts a study on three issues related to the Class II rhyme groups(乙類韻部) in Old Chinese. The first issue is does the *-r coda proposed by Starostin are valid. The secound issue is the open codas of Class II rhyme groups be reconstructed as *-l or *-j. and the last issue is Do the rhyme groups Zhi(脂部), Zhi(質部) and Zhen(眞部) should be further divided. Through this study has reached the following conclusions. Firstly, we agree with proposal of *-r codas. Not only do the open codas of Class II rhyme groups have a close relationship with the nasal codas. but also we can see that the nasal codas of Class II rhyme groups *-n have a close relationship with written Tibetan -l and -r. Secondly, it is more appropriate to reconstruct the open codas of Class II rhyme groups in Old Chinese as *-l. The main reason is that the rhyme group Zhi(脂部) *-i corresponds to written Tibetan -i, -il and -ir. Thirdly, the rhyme groups Zhi(脂部), Zhi(質部) and Zhen(眞部) should be further divided. In particular Zhi group I(質1部) *it and Zhi group II (質2部) *ik is more obvious because the difference between them is quite clear in rhyming of The Book of Songs.

上古音에서 中古音에 걸친 舌齒音의 變化

陳宇昕(CHEN YUXIN),李京哲(Lee Kyongchul) 한국일본어학회 2021 日本語學硏究 Vol.- No.70

In this study I explored the change of the Alveolar plosive initials and Alveolar sibilant affricate & fricative initials form Old Chinese to Middle Chinese. Findings can be summarized in the following five points. 1. There were two language groups in Old Chinese. The first group distinguished aspirated and tenuis initials. We call it Language “A”. The second group distinguished voiced and voiceless sounds, We call it Language “B”. It is thought that in Old Chinese, Language “A” was more influential than “B”. “A” was distributed widely in the north whereas “B” was in the south. Middle Chinese distinguished not only aspirated and tenuis sounds but also voiced and voiceless sounds, which was produced after the language contact between “A” and “B”. 2. Alveolar plosive initials and Alveolar sibilant affricate & fricative initials existed separately in Old Chinese. Postalveolar plosive initials and Alveolo-palatal affricate & fricative initials in Middle Chinese were derived from Alveolar plosive initials in Old Chinese and Postalveolar affricate & fricative initials in Middle Chinese were derived from Alveolar sibilant affricate & fricative initials in Old Chinese. The Cr-type consonant cluster was basically possible in Old Chinese. Alveolo-palatal affricate & fricative initials in Middle Chinese had two different sources form Old Chinese. One was form Tri-type, which we call Group “α” and the other one was from Ti-type, which we call Group “β”. After the disappearance of [r] of Group “α”, Group “α” and Group “β” underwent the palatalization during Northern and Southern Dynasties, and merged to Alveolo-palatal affricate & fricative initials. 3. The separation of Postalveolar plosive initials from Alveolar plosive initials happened in some areas of the Western Jin Dynasty. However, the separation had not occurred in some areas in the Northern and Southern Dynasties. 4. In Old Chinese, people who used Language “B” did not distinguish between Alveolar fricative and Sibilant affricate consonants. 5. Tongue-up sounds and Tooth-up sounds were Postalveolar initials in the Qie-yun system.

A recent trend: application of graphene in catalysis

Yuxin Yan,Woo In Shin,Hao Chen,Shar‑Mun Lee,Sivakumar Manickam,Svenja Hanson,Haitao Zhao,Edward Lester,Tao Wu,Cheng Heng Pang 한국탄소학회 2021 Carbon Letters Vol.31 No.2

Abstract Graphene, an allotrope of carbon in 2D structure, has revolutionised research, development and application in various disciplines since its successful isolation 16 years ago. The single layer of sp2-hybridised carbon atoms brings with it a string of unrivalled characteristics at a fraction of the price of its competitors, including platinum, gold and silver. More recently, there has been a growing trend in the application of graphene in catalysis, either as metal-free catalysts, composite catalysts or as catalyst supports. The unique and extraordinary properties of graphene have rendered it useful in increasing the reactivity and selectivity of some reactions. Owing to its large surface area, outstanding adsorptivity and high compatibility with various functional groups, graphene is able to provide a whole new level of possibilities and flexibilities to design and synthesise fit-for-purpose graphene-based catalysts for specific applications. This review is focussed on the progress, mechanisms and challenges of graphene application in four main reactions, i.e., oxygen reduction reaction, water splitting, water treatment and Fischer–Tropsch synthesis. This review also summarises the advantages and drawbacks of graphene over other commonly used catalysts. Given the inherent nature of graphene, coupled with its recent accelerated advancement in the synthesis and modification processes, it is anticipated that the application of graphene in catalysis will grow exponentially from its current stage of infancy.

Genome-wide identification and expression analysis of the SlNAC gene family in tomato based on a high-quality genome

Chen Xiuling,Mo Fulei,Shen Chunyang,Meng Lingjun,Zou Yuxin,Xue Xiaopeng,Cheng Mozhen,Meng Fanyue,Qi Haonan,Wang Aoxue 한국원예학회 2022 Horticulture, Environment, and Biotechnology Vol.63 No.6

NAC proteins in plants respond to stress and play an important role in plant growth regulation. This regulation occurs through a variety of downstream eff ects mediated by plant hormones in response to stress. In this study, we performed a systematic genome-wide analysis of the NAC gene family in tomato based on genome version SL4.0. We identifi ed 99 SlNAC genes by abiotic stress analysis of conserved motifs and gene structure, phylogenetic analysis, cis-element analysis, chromosome localization analysis, synteny relationship and expression pattern analysis. These 99 SlNAC genes were distributed on all 12 chromosomes. Except for genes without introns, there was no signifi cant correlation between gene structures and phylogenetic relationships. Most of the cis-elements identifi ed were associated with plant hormones and environmental responses. There were 77 SlNAC genes that showed no homogeneity between tomato and wild rice, suggesting that these homologous genes arose after the diff erentiation of dicotyledonous and monocotyledonous plants. The comprehensive analysis of the SlNAC gene family provides a valuable resource for studying this gene family in tomato and a foundation for further study of the functional characteristics of these genes.

Structural configurations and dynamic performances of flexible riser with distributed buoyancy modules based on FEM simulations

Chen Weimin,Guo Shuangxi,Li Yilun,Gai Yuxin,Shen Yijun 대한조선학회 2021 International Journal of Naval Architecture and Oc Vol.13 No.1

Flexible risers are usually used as conveying systems to bring ocean resources from sea bed up to onshore. Under ocean environments, risers need to bear complex loads and it is crucial to comprehensively examine riser's configurations and to analyze structural dynamic performances under excitation of bottom vehicle motions, to guarantee structural safe operation and required service lives. In this study, considering a saddle-shaped riser, the influences of some important design parameters, including installation position of buoyancy modules, buoyancy ratio and motion of mining vehicle, on riser's configuration and response are carefully examined. Through our FEM simulations, the spatial distributions of structural tensions and curvatures along of riser length, under different configurations, are compared. Then, the impacts of mining vehicle motion on riser dynamic response are discussed, and structural tolerance performance is assessed. The results show that modules installation position and buoyancy ratio have significant impacts on riser configurations. And, an appropriate riser configuration is obtained through comprehensive analysis on the modules positions and buoyancy ratios. Under this proposed configuration, the structural tension and curvature could moderately change with buoyancy modules and bottom-end conditions, in other words, the proposed saddle-shaped riser has a good tolerance performance to various load excitations.