中央研究院物理研究所

獎項及殊榮

(1)	國際學術研究獎項	2024	Work selected as Late Breaking Research with a short talk at Gordon Research Conference on Granular Matter
(2)	國際學術研究獎項	2020	invited as Discussion Leader and an introductory talk for “Dynamics and Structures of Granular Flows” at Gordon Research Conference on Granular Matter	scheduled for June 2020; postponed to 2022 due to covid19
(3)		2017-01	European Physical Journal (EPJ) 年度傑出審稿人獎

Experience

Teaching Associate, Dept. of Physics, National Taiwan University
Postdoctral Research Fellow, Dept. of Engineering Sciences and Applied Mathematics & Dept. of Mechanical Engineering, Northwestern University

Research Achievements

Journal Papers

[1] J.-J. Lin*, C.-E. Tsai, J.-R. Huang, J.-C. Tsai*, 2025, “Internal motion of soft granular particles under circular shearing: Rate-dependent quaking and its spatial structure”, Physical Review Research , 7(2), 023096.
[2] C.-E. Tsai, J.-C. JC Tsai, 2024, “Dynamical force measurements for contacting soft surfaces upon steady sliding: Fixed-depth tribology”, Physical Review E, 109, 064802. (SCIE) (IF: 2.4; SCI ranking: 47.1%,22.8%)
[3] Tsai Cheng-En, Li Wei-Chih, Fan-Chiang H.-C., Hsiao Pai-Yi, Tsai Jih-Chiang*, 2024, “Two types of quaking and shear unjamming: State diagram for soft granular particles in quasistatic shear”, Physical Review Research, 6(2), 023065. (SCIE)
[4] Wu Hao, Chiu Yu-Kun, Tsai Jih-Chiang, Chuong Cheng-Ming, Juan Wen-Tau*, 2021, “A quantitative image-based protocol for morphological characterization of cellular solids in feather shafts”, STAR Protocols, 2(3), 100661.
[5] Tsai Jih-Chiang JC, Huang Guan-Hao, Tsai Cheng-En, 2021, “Signature of Transition between Granular Solid and Fluid: Rate-Dependent Stick Slips in Steady Shearing”, Physical Review Letters, 126(12), 128001. (SCIE) (IF: 9; SCI ranking: 10.6%)
[6] Tsai J.-C., Chou M.-R., Huang P.-C., Fei H.-T., Huang J.-R., 2020, “Soft granular particles sheared at a controlled volume: rate-dependent dynamics and the solid–fluid transition”, Soft Matter, 16(32) 7535-7543. (SCIE) (IF: 2.8; SCI ranking: 64.4%,59.5%,41.2%,49.4%)
[7] W.-L. Chang , Hao Wu, Y.-K. Chiu, .....J.C. Tsai, .. Yeu-Kuang Hwu, .....Wen-Tau Juan*, Chuongheng-Ming Chu, 2019, “The Making of a Flight Feather: Bio-architectural Principles and Adaptation”, CELL, 179(6), 1409-. (SCIE) (IF: 42.5; SCI ranking: 1.1%,2.6%)
[8] Y.-C. Sun, H.-T. Fei, P. -C. Huang, W.-T. Juan, J.-R. Huang, and J.-C. Tsai, 2016, “Short granular chain under vibration: Spontaneous switching of states”, PHYSICAL REVIEW E, 93, 032902. (SCIE) (IF: 2.4; SCI ranking: 47.1%,22.8%)
[9] J.-C. Tsai*, C.-Y. Tao, Y.-C. Sun, C.-Y. Lai, K.-H. Huang, W.-T. Juan, J.-R. Huang, 2015, “Vortex-induced morphology on a two-ﬂuid interface and the transitions”, PHYSICAL REVIEW E, 92, 031002(R). (SCIE) (IF: 2.4; SCI ranking: 47.1%,22.8%)
[10] W.-T. Lin, Y.-C. Sun, C.-C. Chang Y.-C. Lin, C.-W. Peng, W.-T. Juan*, J.-C. Tsai*, 2014, “Ratcheting and transitions: Short granular chain in a gradient of vibration ”, PHYSICAL REVIEW LETTERS, 112, 058001. (SCIE) (IF: 9; SCI ranking: 10.6%)
[11] Chen-Ming Chang, Yuk-Gyn Lau, Jih-Chiang Tsai* and Wen-Tau Juan*, 2012, “Relaxation of DNA on a supported lipid membrane”, EUROPHYSICS LETTERS, 99, 48008.
[12] S. Arif, J.-C Tsai, S. Hilgenfeldt, 2012, “Spontaneous brittle-to-ductile transition in an aqueous foam ”, Journal of Reology, 56(3),485-499.
[13] S. Arif, J.-C. Tsai and S. Hilgenfeldt, 2010, “Speed of crack propagation in dry aqueous foams”, EUROPHYSICS LETTERS, 92, 38001.
[14] Sascha Hilgenfeldt, Shehla Arif1, Jih-Chiang Tsai, 2008, “Foam: a multiphase system with many facets ”, Philosophical transactions of the royal society a-mathematical physical and engineering sciences, 366,2145. (SCIE) (IF: 3.7; SCI ranking: 32.4%)
[15] Jih-Chiang Tsai, 2007, “Ordering transition and characteristic lengthscale of a granular flow”, Chinese journal of physics, 45(6), 682-685. (SCIE) (IF: 4.6; SCI ranking: 25.9%)
[16] J.-C. Tsai and J. P. Gollub, 2005, “Granular packings sheared in an annular channel: Flow localization and grain size dependence”, Physical review e, 72, 051304. (SCIE) (IF: 2.4; SCI ranking: 47.1%,22.8%)
[17] J.-C. Tsai, J. Rodriguez, F. Ye, J. P. Gollub and T.C. Lubensky, 2005, “A Chiral Granular Gas”, Physical Review Letters, 94, 214301. (SCIE) (IF: 9; SCI ranking: 10.6%)
[18] J.-C. Tsai and J. P. Gollub, 2004, “Slowly Sheared Dense Granular Flows: Crystallization and non-unique final states”, Physical Review E, 70, 031303. (SCIE) (IF: 2.4; SCI ranking: 47.1%,22.8%)
[19] J.-C. Tsai, G.A.Voth, and J. P. Gollub, 2003, “Internal Granular Dynamics, Shear-Induced Crystallization, and Compaction Steps”, Physical Review Letters, 91, 064301. (SCIE) (IF: 9; SCI ranking: 10.6%)
[20] J.-C. Tsai, W. Losert, G.A. Voth, and J.P. Gollub, 2001, “Two-dimensional granular Poiseuille Flow on an incline: multiple dynamical regimes”, Physical Review e, 65, 011306. (SCIE) (IF: 2.4; SCI ranking: 47.1%,22.8%)

Conference Papers

[1] JC Tsai, Cheng-En Tsai, 2019, “Stickslips with Granular Particles”, paper presented at 72nd Annual Meeting of the APS Division of Fluid Dynamics, Seattle, WA, USA: American Physical Society, 2019-11-23 ~ 2019-11-26.
[2] Cheng-En Tsai, JC Tsai, 2019, “Transitional Granular Packing: Rate-dependent Brittleness”, paper presented at 72nd Annual Meeting of the APS Division of Fluid Dynamics, Seattle, WA, USA: American Physical Society, 2019-11-23 ~ 2019-11-26.
[3] JC Tsai, 2018, “Development of strong intermittency in densely packed soft particles under shearing”, paper presented at 71st Annual Meeting of the APS Division of Fluid Dynamics, Atlanda: American Physical Society, 2018-11-18 ~ 2018-11-20.
[4] JC Tsai, 2018, “Dynamics of densely packed, soft particles: rate dependence and role of “friction””, paper presented at Gordon Research Conferences on Granular Matter, Stonehill College, Easton, MA, USA: GRC, 2018-07-22 ~ 2018-07-27.
[5] JC Tsai, 2013, “Gradient-induced migrations of a short chain and a "phase transition"”, paper presented at Conference on Complex Dynamics in Granular Systems, Beijing, PROC: KITPC, 2013-06.
[6] 蔡日強, 2012, “ Ratcheting and transitions of granular chain”, paper presented at 65th Annual Meeting of the APS Division of Fluid Dynamics, San Diego, CA, USA: APS Division of Fluid Dynamics, 2012-11-21 ~ 2012-11-23.
[7] Weiting Lin, Ching-Yau Lai, Chi-Chung Chang, Yih-Yuh Chen, and Jih-Chiang Tsai*, 2011, “Scenarios on a rotating two-fluid interface with a density contrast”, paper presented at 64th Annual Meeting of the APS Division of Fluid Dynamics, Baltimore, MD, USA: American Physical Society, 2011-11-20 ~ 2011-11-22.
[8] Yu-Chen Lin, Chi-Chung Chang and Jih-Chiang Tsai*, 2011, “Migration of a short chain subjected to a spatial gradient of vibration ”, paper presented at Nonlinear Dynamics and Fluid Instablities in the 21st Century, Haverford, PA, USA: Haverford College, 2011-05-19 ~ 2011-05-20.
[9] J.-C.Tsai, D.Hansen, S.Hilgenfeldt, 2008, “Microfluidic mixing as a scattering problem”, paper presented at APS Division of Fluid Dynamics, San Antonio, Texas, USA: Americal Physical Society, 2008-11-19 ~ 2008-11-22.
[10] Shehla Arif, Jih-Chiang Tsai, Sascha Hilgenfeldt, 2007, “Coexistence of Fracture Modes in Two-dimensional Foam”, paper presented at Gordon Research Conference for Nonlinear Sciences, Colby College, Waterville, ME, USA: GRC committee, 2007-06-24 ~ 2007-06-29.

Others

[1] Cheng Yu-Chuan, Hsieh Ting-Heng, Tsai Jih-Chiang, Hong Tzay-Ming*, 2021, “Phase diagram and snap-off transition for twisted party balloons”, Physical Review E.
[2] Lin, J.-J.; Cheng, C.-C.; Cheng, Y.-C.; Tsai, J.-C.*; Hong, T.-M*, Unpublished, “Aging-Induced Dynamics for Statically Indeterminate System”, arXiv:2010.08289, arXiv:2010.08289.
[3] Tsai, C.-E.; Tsai, J.-C.*, Unpublished, “Speed-Dependent Mean Force and Fluctuations between Fluid-Immersed PDMS Surfaces upon Sliding”, arXiv:2010.07907, arXiv:2010.07907.

發現與突破

[1] 西元年：2021
研究人員(中)：蔡日強
研究人員(英)：TSAI, JIH-CHIANG
研究成果名稱(中)：流沙, 地震, 土石, 與沙漏裡的物理 : "動靜之間"
研究成果名稱(英)：Quicksand, Landslides, and flows in Hourglass: an integrated view
簡要記述(中)：顆粒體流動(granular flow)的多樣性自古一直缺乏統整的解釋. 但在近期的Phys. Rev. Lett.中, 本所蔡日強實驗室團隊的發現, 為這個統合提供了可能的起點: 主實驗聚焦在觀察緊壓於液體裡膠質顆粒的剪切流(shear flow), 其應力隨施加的轉速呈現的起伏(fluctuations). 此團隊也同時藉由實測,納入"摩擦力隨接觸面行進速度變化"這個久為人知但常被理論忽略的因素, 歸納出新的無因次量(dimensionless number) , 因而解讀出主實驗裡為何在"中等"轉速範圍會出現如地震般的間歇性流動(intermittency):1)這種間歇流的出現, 可視為系統處於(a)較高轉速下類似流沙的"完全液化", 及(b)極低轉速下可比擬於沙漏裡的“準靜態(quasi-static)流動”, 這兩種迥異行為之間的過渡狀態.2) 這些發現也為顆粒流的"固態"(solid), "液態"(liquid), 及 "懸浮態"(suspension) 之間的統合跨出了第一步....
簡要記述(英)：Quicksand, Landslides, and flows in Hourglass: an integrated view----- Could we produce and explain the three vastly different scenarios of granular flow above, in one single experiment? Recently, by carefully observing the shear flow of soft frictional particles immersed in fluid, JC Tsai and co-workers at Institute of Physics, Academia Sinica in Taipei identify a new dimensionless parameter that explicitly takes into account the speed dependence of inter-particle friction, and demonstrate a “dangerous zone” of shear rates with prominent force fluctuations mimicking landslides or earthquakes in nature. This zone also serves as a signature that sits between fully-lubricated flow (as a "fluid", like quicksand) and quasi-static "solid" (in an hourglass).In the past two decades, paradigms have been established in a few idealized contexts, where changes with driving rates are successfully described by dimensionless parameters such as Inertial Number [1] or Viscous Number [2]. However, in our daily lives, behaviors of frictional particles remain largely unexplained. The recent findings by this research team in Taiwan piece together states of "solid", "liquid", and "suspension" of granular flows, "provides a new anchoring point in the climb towards a complete understanding of disordered media flows and should certainly inspire new modeling approaches"--- as remarked by one of the reviewers.-------ORIGINAL ARTICLE: "Signature of transition between granular solid and fluid: Rate-dependent stickslips in steady shearing" (March, 2021) , DoI:10.1103/PhysRevLett.126.128001Extended Readings: [1] Forterre and Pouliquen, Annu. Rev. Fluid Mech. 40(1), 1–24. (2008); [2] Guazzelli and Pouliquen, J. Fluid Mech. 852, 1 (2018)

主要相關著作：

Tsai Jih-Chiang JC, Huang Guan-Hao, Tsai Cheng-En, 2021, “Signature of Transition between Granular Solid and Fluid: Rate-Dependent Stick Slips in Steady Shearing”, Physical Review Letters, 126(12), 128001. (SCIE) (IF: 9; SCI ranking: 10.6%)

Tsai, Jih-Chiang (JC) / Research Fellow

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