Faculty Profiles - RYAN Joseph Richard

Papers - RYAN Joseph Richard

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X-CT Reconstruction as a Tool for Monitoring the Conservation State and Decay Processes of Works of Art and in Support of Restoration and Conservation Strategies Reviewed

Laura Guidorzi, Alessandro Re, Francesca Tansella, Luisa Vigorelli, Chiara Ricci, Joseph Ryan, Alessandro Lo Giudice

Heritage 8 ( 2 ) 52 - 52 2025.1

Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

X-ray Computed Tomography (X-CT) is now an established technique for the investigation and diagnostics of Cultural Heritage. Its advantages include non-invasiveness, non-destructiveness, and the possibility of exploring the inner parts of an object without any modification. X-CT is often employed to investigate the construction methods of complex artifacts made with different parts or materials, but it is also able to support the analysis, intervention, monitoring and enhancement processes of artworks, creating digital models that can aid in the conservation and restoration procedures. In this work, several case studies are presented in which the CT technique has been decisive in identifying the effects of time and the events that occurred during the object’s life influencing its state of conservation. These range from large objects, such as an 18th century CE writing cabinet or an ancient Egyptian wooden coffin, to very small artifacts, like Mesopotamian lapis lazuli beads or fragments of Roman colored glass. Additionally, the results obtained by µ-CT investigations on the conservation state of a bronze arrowhead uncovered from the Urama-chausuyama mounded tomb (Japan, Kofun period, end of the 3rd century CE) are presented here for the first time. Lastly, the versatility of the technique when applied with different setups is highlighted.

DOI： 10.3390/heritage8020052

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Chronology and Geospace Design in Virtual Reality for Archaeological Data Exhibition Reviewed

Vincenzo Lombardo, Vittorio Lauro, Vittorio Murtas, Joseph Ryan

8 ( 1 ) 1 - 26 2024.5

宮山遺跡出土遺物の研究４．武器

ライアン・ジョセフ

岡山県立博物館研究報告 44 21 - 28 2024.3

鉄器研究から見た日本考古学

ライアン・ジョセフ

『海外から見た日本考古学の魅力』 215 - 242 2024.1

鉄製刀剣類からみた弥生時代後期の西日本 Invited

ライアン・ジョセフ

紀元一世紀の社会変革―弥生後期のはじまりをさぐる― 76 - 85 2024.1

岡山県津山市佐良山古墳群内におけるUAV-LiDAR測量 Reviewed

光本順, ライアン・ジョセフ, 山口雄治

日本情報考古学会講演論文集（第46回大会） 26 22 - 27 2023.3

古代吉備の鉄生産 Invited

ライアン・ジョセフ

大学的岡山ガイド―こだわりの歩き方― 124 - 128 2023.3

LiDAR survey of the fifth-century Tsukuriyama mounded tomb group in Japan Reviewed

Jun Mitsumoto, Joseph Ryan, Yuji Yamaguchi, Akira Seike

Antiquity 97 ( 391 ) 1 - 8 2022.12

Language：English Publishing type：Research paper (scientific journal) Publisher：Antiquity Publications

The authors present the results of a drone-based airborne LiDAR survey of the fifth century AD Tsukuriyama mounded tomb group in Okayama Prefecture, Japan, revealing the relationship between tomb building and the surrounding landscape during Japan's period of ancient state formation.

DOI： 10.15184/aqy.2022.167

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地質観察および土質試験による造山古墳と鳶尾塚古墳の盛土の検討

鈴木茂之, 清家章, 寒川史也, ライアンジョセフ, 西村輝

日本応用地質学会中国四国支部令和4年度研究発表会発表論文集 33 - 34 2022.11

Diversity and structure of soil fungal communities unveil the building history of a burial mound of ancient Japan (Tobiotsuka Kofun, Okayama Prefecture) Reviewed

Samuele Voyron, Chiara Tonon, Laura Guglielmone, Luisella Celi, Cesare Comina, Hajime Ikeda, Naoko Matsumoto, Daniele Petrella, Joseph Ryan, Kazuhiro Sato, Akira Seike, Ivan Varriale, Jun Yamashita, Sergio E. Favero-Longo, Eleonora Bonifacio

Journal of Archaeological Science 146 105656 - 105656 2022.10

Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

Kofuns are burial mounds of ancient Japan (3rd-7th century CE, defined as Kofun Period). The construction history and archaeological significance of Kofuns of the Late Kofun Period (6th-7th century) still need to be characterized. This study dealt with Tobiotsuka Kofun (Okayama Prefecture, Japan) and aimed to investigate if diversity and structure of soil fungal communities, and their relationships with soil characteristics, beyond reflecting present vegetation, may be informative on the construction history of the burial mound. In particular the analyses aimed to verify the supposed presence of a boundary between the original hill and the potential anthropic backfill. Soil fungal communities were characterized by high-throughput sequencing (Illumina MiSeq technology), at the ground and through different archaeological soil layers. Approximately 1.5 x 10(6) high quality ITS2 sequences, clustered in 1875 OTUs, were obtained from 59 sampling points, distributed inside the burial chamber and on the Kofun external slopes. Heterogeneity and vertical distribution of fungal communities, considered in terms of taxonomic and trophic groups, generally showed a compatible pattern with present-day topographic conditions and vegetation. However, the chemical soil analyses and fungal distribution with depth, in particular that of saprotrophic fungi, cannot be explained by natural soil development and ecological context only, and point towards the presence of a former topsoil layer that was disturbed and at least partially buried by the Kofun construction.

DOI： 10.1016/j.jas.2022.105656

Web of Science

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岡山県の古墳を対象とするドローンを用いたLiDAR測量

光本順, 山口雄治, ライアン・ジョセフ

第40回レーザセンシングシンポジウム予稿集 1 - 3 2022.9

剣状刀子と剣先刀子の意義

ライアン・ジョセフ

『心とアートの人類史』季刊考古学別冊36 85 - 93 2022.3

Analysis of the Tottori-kamitakatsuka mounded tomb through airborne LiDAR survey Reviewed

Dynamics of Civilizations 1 67 - 81 2022.3

長野市塩崎遺跡群出土鉄剣の基礎的検討

ライアン・ジョセフ

長野県埋蔵文化財センター年報 38 49 - 52 2022.3

弥生時代の鉄製武器と東アジア社会

ライアンジョセフ

交響する古代Ⅻ 1 - 5 2021.12

A reconsideration of iron sword production in Yayoi-period North Kyushu Reviewed

Quarterly of Archaeological Studies 68 ( 1 ) 31 - 52 2021.6

中四国・畿内における鉄製刀剣の普及 Invited

古代武器研究 16 53 - 70 2020.12

蕨手状装飾をもつ鉄器について

弥生時代における東西交流の実態（考古学リーダー27） 219 - 226 2020.5

Tsukura Kofun as seen through its iron weapons

91 - 97 2020.3

近畿・中四国における鉄製武器の普及と防御集落

第16回古代武器研究会資料集 16 55 - 78 2019.12

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Papers - RYAN Joseph Richard