( - INVITED KEYNOTE, - INVITED, - ORAL, Δ - POSTER,   STUDY GROUP/WORKSHOPS)

72. Comdi2018, laussanne

71. Mmm hub 2018, london

70. jst open symposium, august

69.  ΔRandy Jalem, Ryosuke Natsume, Masanobu Nakayama. Computational Investigation on the Sodium Ion Transport Property of Oxyfluorinated Titanium(IV) Phosphate Na3Ti2P2O10F for Sodium Ion Battery Application. 19th International Meeting on Lithium Batteries (IMLB2018), Kyoto International Conference Center (KICC), Kyoto, Japan, June 18, 2018.

68. Randy Jalem. Insights from Computational Modeling and Experiments on the Li-Ion Dynamics and Electrochemical Stability of Garnet-Based Solid Electrolytes. 233rd The Electrochemical Society (ECS) Meeting, Washington State Convention Center, Seattle, Washington, USA, May 15, 2018.

67. Randy Jalem, Ryosuke Natsume, Masanobu Nakayama. Computational Investigation on Oxide Electrolytes with Garnet Structure and Conduction-Pathway-Blocking Dopants. 2018 MRS Spring Meeting & Exhibit,  Phoenix Convention Center, Phoenix, Arizona, USA, April 4, 2018.

66. Randy Jalem, Yasuyuki Morishita, Takashi Okajima, Yuki Kondo, Hayami Takeda, Masanobu Nakayama. Combined experimental and computational investigation on the electrochemical reactivity of garnet-type solid electrolyte in an all-solid-state battery cell. 2018 MRS Spring Meeting & Exhibit,  Phoenix Convention Center, Phoenix, Arizona, USA, April 4, 2018.

65. ΔRandy Jalem, Yoshitaka Tateyama, Masanobu Nakayama. Combining Materials Modelling and Informatics Techniques for Efficient Search of Fast Lithium Ionic Conductors for All-Solid-State Battery Application. International Battery Seminar and Exhibit, Fort Lauderdale Convention Center, Fort Lauderdale, Florida, USA, March 26-29, 2018. 

64. ΔRandy Jalem, Ryosuke Natsume, Masanobu Nakayama. First-principles Investigation on Oxyfluorinated Titanium(IV) Phosphate Na3Ti2P2O10F Anode Material for Sodium Ion Batteries. International Battery Association (IBA 2018), Lotte Hotel Jeju, Jeju Island, Republic of Korea, March 13, 2018.

63. Randy Jalem. All-Solid State Battery Materials Search by Materials Simulations and Informatics (Japanese title: 材料シミュレーションとマテリアルズ・ インフォマティクスによる全固体電池材料の探索). 17th GREEN Symposium (第17回 GREENシンポジウム), Hitotsubashi Hall,National Center of Sciences Building 2F, 2-1-2 Hitotsubashi, Chiyoda-ku,Tokyo, Japan, January 25, 2018.

62. Randy Jalem, Ryosuke Natsume, Masanobu Nakayama. Computational Study on the Ion Transport  Properties of Garnet-Type Solid Electrolytes with Conduction-Pathway-Blocking Cation Dopants. International Session, 43th Symposium on Solid State Ionics in Japan, Tendo-city, Yamagata, Japan, December 6, 2017.

61. ΔRandy Jalem, Masanobu Nakayama. Informatics-aided DFT-based Solid Electrolyte Search for Rechargeable Battery Application.  Car-Parrinello Molecular Dynamics in 2017 (CPMD2017) Workshop, International Congress Center "EPOCHAL TSUKUBA", Tsukuba, Ibaraki, Japan, October 13, 2017.

60. Randy Jalem, Masanobu Nakayama. Electrochemical Stability, Li Ion Transport Behavior, and Doping of Garnet Oxide Electrolytes. 1st World Conference on Solid Electrolytes for Advanced Applications: Garnets and Competitors, Pondicherry, India, September 8, 2017.

59. Randy Jalem, Masanobu Nakayama. Li-Ion Transport Process, Doping Effects, and Stability in Garnet-Type Solid Electrolytes: Insights from Computations and Experiments. 21st International Conference on Solid State Ionics, Padua, Italy, June 22, 2017.

58. Randy Jalem, Yasuyuki Morishita, Takashi Okajima, Yuki Kondo, Hayami Takeda, Masanobu Nakayama. Experimental and Computational Investigation on the Crystal Structure, Stability, and Li Ion Conductivity of Undoped and Doped Garnet-Type Solid Electrolytes. 231st ECS Meeting, New Orleans, USA, May 31, 2017.

57. Randy JalemMachine learning and meta-heuristic methods for computational screening of ion conductive ceramics, Mi2i Battery Materials Group Meeting,  JAIST Tokyo Satellite, September 29, 2016.

56. ΔRandy Jalem, Masanobu Nakayama, Materials Simulations with Machine Learning for Battery Research, TIA "Kakehashi" Poster and Networking Event, Epochal Tsukuba, August 30, 2016.

55. ΔRandy Jalem, Masanobu Nakayama, Materials Simulations with Machine Learning for Battery Research, The 13th GREEN Symposium, National Institute for Materials Science (NIMS) - Global Research Center for Environment and Energy based on Nanomaterials Science (GREEN), Namiki, Tsukuba, Japan, June 22, 2016.

54. Randy Jalem, Yasuyuki Morishita, Takashi Okajima, Masanobu Nakayama, Toshihiro Kasuga, Computational Study on Doped Garnet Solid Electrolytes, 18th Chemical Battery Materials  Research Meeting (第 18 回 化学電池材料研究会ミーティング), Chemical Society of Japan Assembly Hall, Tokyo, Japan, June 14, 2016.

53. Randy Jalem, Masanobu Nakayama, Computational Studies on Diffusion of Li in Oxides for Rechargeable Li Ion Battery with Informatics, Materials Challenges in Alternative and Renewable Energy (MCARE), Florida, USA, April 19, 2016.

52. Randy Jalem, Yasuyuki Morishita, Takeshi Okajima, Masanobu Nakayama, Investigation on the Reactivity of Garnet-Type Li Ion Conducting Oxides with Carbon, The 83rd Electrochemical Society Japan Meeting, Osaka University, March 29, 2016.

51. Randy Jalem, Masanobu Nakayama, Ion Transport Property Survey in Oxide-based Materials by DFT+Informatics, Annual Meeting 2016 of The Ceramic Society of Japan, March 16, 2016.

50. Randy Jalem, Masanobu Nakayama, Molecular Dynamics Simulation Study on the Lithium Ion Transport of Doped Garnet-Type Solid Electrolytes, nergy Materials Nanotechnology (EMN) Meeting on Ceramics, Hong Kong, January 26, 2016.

49.   ΔRandy Jalem, Masanobu Nakayama, Materials Simulation-Based Investigation on the Effects of Pathway-Non-Blocking and Pathway-Blocking Dopants in Garnet-Type Solid Electrolytes, MRS Fall Meeting & Exhibit, Boston, Massachusetts, December 3, 2015.

48.   Randy Jalem, Masanobu Nakayama, Combining DFT Calculations and Machine Learning for the Efficient Evaluation of Lithium Ion Migration Energy in Olivine-Type and Tavorite-Type Solid Electrolyte Candidate Compounds, 2015 MRS Fall Meeting & Exhibit, Boston, Massachusetts, November 30, 2015.

47.    Masanobu Nakayama, Randy Jalem, Computational and Experimental Studies on Garnet-type Li ion Conductors as Solid Electrolytes of Li ion battery, The 3rd International Conference on Advanced Electromaterials (ICAE 2015), ICC Jeju, Korea, November 18, 2015. 

46.   Randy Jalem, Masanobu Nakayama, Li Ion Transport Investigation of Garnet-Type Li7-xLa3[Zr2-xTax]O12 and [Li7-3xGax]La3Zr2O12 Solid Electrolytes by Molecular Dynamics Simulation, The 56th Battery Symposium in Japan, WINC Aichi, Nagoya, Japan, November 11, 2015. 

45.   Randy Jalem, Masanobu Nakayama, Materials Property Evaluation and Exploration of Fast Lithium Ion Conductors through Atomistic Simulations and Materials Informatics, The 3rd MI2I Seminar, National Institute of Materials Science (NIMS), Sengen, Tsukuba, Japan, October 29, 2015.

44.   Masanobu Nakayama, Randy Jalem, Ab Initio-based Computational Study on Garnet-Type Li Conductor Li7La3Zr2O12, The 11th Pacific Rim Conference of Ceramic Societies (PAcRim-11), ICC Jeju, Jeju, Korea, September 1, 2015.

43.   Randy Jalem, Masanobu Nakayama, Surveying the Li Ion Transport Property Space by Combining DFT Calculations and Neural Network Modeling, Materials Informatics Workshop, National Institute of Materials Science (NIMS), Sengen, Tsukuba, Japan, August 20, 2015. 

42.   Masanobu Nakayama, Randy Jalem, Ab Initio Molecular Dynamics Study of Ion Transport in Battery Materials, 8th International Conference on Materials for Advanced Technologies of the Materials Research Society of Singapore & 16th IUMRS-International Conference in Asia (ICMAT2015 & IUMRS-ICA2015), Suntec Singapore, June 30, 2015.

41.   □1st US-Japan Materials Genome Workshop, Epochal Tsukuba, Japan, June 23-24, 2015.

40.  ⓘRandy Jalem, Masanobu Nakayama. An efficient rule-based screening

      approach for discovering fast ion conductors using density functional theory and informatics. Energy Materials Nanotechnology (EMN) Cancun Meeting 2015, The Westin Resort & Spa, Cancun, Mexico, June 8-11, 2015.

39.   ΔKatsuya Nishii, Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Analysis of the Crystal Particle Morphology of Perovskite-type Oxygen Permeable Ceramics by First-principles Calculations, 7th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials (ISPlasma), March 28, 2015.

38.   ΔYasuyuki Morishita, Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Reactivity of Lithium Ion Conducting Garnet-type Oxides with Carbon, 7th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials (ISPlasma), March 28, 2015.

37.   Masanobu Nakayama, Randy Jalem, Efficient Exploration of Li Ion Conductors by First-Principles Density Functional Theory with Machine Learning Techniques, 7th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials (ISPlasma), March 28, 2015.

36.   ○Mayumi Kimura, Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Li ion Transport in Tavorite-Type LiMSO4F (M: Mg, Ca, Sr) by DFT Calculations, 7th International Symposium on Advanced Plasma Science and Its Applications for Nitrides and Nanomaterials (ISPlasma), March 27, 2015.

 

35.   Randy Jalem. Database-Driven Exploration of Fast Ionic Conductors Through Materials Simulation Techniques. Elements Strategy Initiative for Catalysts & Batteries (ESICB) Seminar for the Next Generation, Kyoto University, Katsura, Saikyo-ku, Kyoto 615-8520, Japan, February 27, 2015.

34.    ΔRandy Jalem, Ryosuke Natsume, Masanobu Nakayama. Ab Initio Molecular Dynamics Study of Oxyfluorinated Titanium (IV) Phosphate Na3Ti2P2O10F. Joint Conference on Battery and Electronic Theory of the Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Katsura, Saikyo-ku, Kyoto 615-8520, Japan, January 14, 2015.

33.   W. Manalastas Jr, A. Aguadero, Randy Jalem, C. Bernuy-López, J.M. López del Amo, F. Aguesse, and J. Kilner. From Disorder to Order: The Case of the Highly Ion-Conducting Li7-3x2xGaxLa3Zr2O12 Garnet and Its Protonated Analogue. 22émes Journées de la Diffusion Neutronique (JDN22), lle d’Oléron, Charente-Maritime, September 21-26, 2014.

32.   ○Masanobu Nakayama, Randy Jalem. Ab Initio Molecular Dynamics Study of Garnet-type Cubic Li7-xLa3Zr2-xTaxO12. The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), Fukuoka University, Fukuoka, Japan, August 25, 2014.

31.    Randy Jalem, Masanobu Nakayama. Investigation of the Lithium Ion Dynamics in Garnet-type Cubic Li7La3Zr2O12 Solid Electrolytes. International Conference on Microelectronics and Plasma Technology 2014, Gunsan Saemangeum Convention Center (GSCO), Gunsan, Republic of Korea, July 9, 2014.

30.    Randy Jalem, Masanobu Nakayama. An Efficient DFT-Based Material Screening Method Assisted by Multivariate Modeling Techniques. International Conference on Microelectronics and Plasma Technology 2014, Gunsan Saemangeum Convention Center (GSCO), Gunsan, Republic of Korea, July 8, 2014.

29.    ΔRandy Jalem, Masanobu Nakayama. Efficient Target Property-Based Screening of the Lithium Tavorite Search Space by Combined DFT and Neural Network Approach. 2014 First Joint Conference on Battery and Electronic Theory of the Unit of Elements Strategy Initiative for Catalysts & Batteries (ESICB), Kyoto University, Katsura, Saikyo-ku, Kyoto 615-8520, Japan, July 3, 2014.

28.    Randy Jalem. Seminar on “Li ion transport in garnet-type solid electrolytes using ab initio and force field-based simulations”. CIC Energigune, Parque Tecnologico C/Albert Einstein 48 CP 01510 Minano, Alava, Spain, June 17, 2014.

27.    Randy Jalem, Masanobu Nakayama. Efficient Search of Fast Lithium Ionic Conductors Through Ab Initio-based Computational Methods and Material Informatics. 13th International Ceramics Congress, CIMTEC 2014 - 13th International Conference on Modern Materials and Technologies, Montecatini Terme, Tuscany, Italy, June 8-19, 2014.

26.    Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga. Ab Initio Molecular Dynamics Study of Garnet-type Cubic Li7-xLa3Zr2-xTaxO12 Solid Electrolytes. 3rd International Symposium on Ceramics Nanotune Technology, Nagoya Institute of Technology, Nagoya City, Japan, March 2-4, 2014.

25.    □Cooperation of Computational Materials Science and Mathematics Toward Smart Material Design, JST Tokyo Headquarters, K's Gobancho, 7, Gobancho, Chiyoda-ku, Tokyo, 102-0076 Japan, January 6-7, 2014.

24.    ○Ryosuke Natsume, Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga. Sodium Ion Diffusivity in NASICON-Type Na3Ti2P2O10F. Academic Forum on Ceramics Research in Tokai, Ceramics Society of Japan, Meijo University, December 7, 2013.

23.  ○Yasuyuki Morishita, Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga. Exploration and Evaluation of the Stability Under High Voltage of Li Ion Conductive Garnet-Type Oxides. Academic Forum on Ceramics Research in Tokai, Ceramics Society of Japan, Meijo University, December 7, 2013.

22.  ○Masanobu Nakayama and Randy Jalem. Efficient Materials Search of Candidate Solid Electrolyte Materials. The 7th Annual Academic-Industry-Government Symposium, Computational Materials Science Initiative, Akihabara Daibiru Building, Chiyoda-ku, Tokyo, November 21, 2013.

21.  ○Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Kiyoshi Kanamura. Ab Initio Molecular Dynamics Study of Garnet-Type Li7-XLa3Zr2-XTaxO12 (0≤x≤2). ECS 224th Meeting, The Hilton San Francisco Hotel, 333 O’Farrell Street, San Francisco, CA 94102, October 30, 2013.

20.  ΔRandy Jalem, Masanobu Nakayama, Toshihiro Kasuga. Efficient Material Screening By Combining DFT Method and Multivariate Analysis. ECS 224th Meeting, The Hilton San Francisco Hotel, 333 O’Farrell Street, San Francisco, CA 94102, October 29, 2013.

19.  ○Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Kiyoshi Kanamura. First Principles Molecular Dynamics Study of Garnet-Type Cubic Li7La3Zr2O12. 32nd Materials for Chemical Battery Society, Toriiro Hotel, Shiga, Japan, July 29-31, 2013.

18.  ΔRandy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Kiyoshi Kanamura. AIMD Studies on Lithium ion dynamics in garnet-type Li7La3Zr2O12. The 19th International Conference on Solid State Ionics, Kyoto International Conference Center, Kyoto, Japan, June 4, 2013.

17.  ΔRandy Jalem, Masanobu Nakayama, Toshihiro Kasuga. An Efficient Target Property-Based Screening of Candidate Solid Electrolyte Materials by Using DFT Computation and Neural Network Modelling. The 19th International Conference on Solid State Ionics, Kyoto International Conference Center, Kyoto, Japan, June 4, 2013.

16.  Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga, Kiyoshi Kanamura. First Principles Molecular Dynamics Study of Garnet-Type Li7-xLa3M2O12 [M = Zr4+ (x = 0), Ta5+ (x = 2)]. The 80th Spring Meeting of Electrochemical Society of Japan, Tohoku University, Kawauchi Campus, Sendai, Miyagi, Japan, Mar. 31, 2013.

15.  ΔRandy Jalem, Masanobu Nakayama, Toshihiro Kasuga. An Efficient DFT-Based Material Screening Method Assisted by Multivariate Modeling Techniques. The 80th Spring Meeting of Electrochemical Society of Japan, Tohoku University, Kawauchi Campus, Sendai, Miyagi, Japan, Mar. 29, 2013.

14.  ΔRandy Jalem, Masanobu Nakayama. Efficient Material Screening by Ab Initio Method + Neural Network Modeling. Annual Meeting of the Ceramic Society of Japan, Tokyo Institute of Technology, Ookayama Campus, Tokyo, Japan, March 17-19, 2013.

13.  Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga. Li Ion Transport Study in Garnet-Type Li7La3Zr2O12. The 2nd International Symposium on Ceramics Nanotune Technology, Nagoya Institute of Technology, Nagoya City, Japan, March 6-8, 2013.

12.  ○Masayuki Kato, Randy Jalem, Masanobu Nakayama, Toshihiro Kasuga. Analysis of the Li Ion Conduction in Garnet-type Oxides by Ab Initio Molecular Dynamics, Academic Forum on Ceramics Research in Tokai, Ceramics Society of Japan, Nagoya University, December 1, 2012.

11.  Randy Jalem, Yuhei Mochizuki, Masanobu Nakayama, Kunihiro Nobuhara. Probing of the True Global Minimum Structures in LixCoO2 Cathode Material Using Hybrid Evolutionary Algorithm. The 53rd Battery Symposium in Japan - The 16th International Symposium on Batteries, Fuel Cells and Capacitors (ISBFCC16), Hilton Fukuoka Sea Hawk, Fukuoka City, Fukuoka, Japan, November 14-16, 2012.

10.  ○Masanobu Nakayama, Randy Jalem. Efficient exploration of Li ion conduction for Li Olivine-type LiMXO4 compositions by multivariate method-assisted density functional Theory, The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials ISAEM-2012, Hotel Nikko Toyohashi, Aichi, Japan, November 5-8, 2012.

9.  Randy Jalem, Yoshihiro Yamamoto, Hiromasa Shiiba, Masanobu Nakayama. Ab Initio Molecular Dynamics Study of the Li Ionic Conduction in Garnet-Type Cubic Li7La3Zr2O12 Solid Electrolyte. Ceramic Society of Japan 25th Fall Meeting. Nagoya University – Higashiyama Campus, Nagoya, Japan, September 19-21, 2012.

8.  Randy Jalem, Yoshihiro Yamamoto, Hiromasa Shiiba, Masanobu Nakayama. Investigation of the Li Ionic Transport Mechanism and Li Ion Distribution in Garnet-Type Li7La3Zr2O12 Solid Electrolyte. Fifth International Workshop on Advanced Ceramics (IWAC05). Imperial College London, South Kensington, London SW7 2AZ, UK, September 9-11, 2012.

7.  Randy Jalem, Takahiro Aoyama, Masanobu Nakayama, Masayuki Nogami. Efficient Prediction of Li Ion Hopping Energy for Novel Olivine-Type LiMXO4 Solid Electrolytes. The 79th Convention of Electrochemical Society of Japan. Act City Hamamatsu, Hamamatsu City, Japan, March 29-31, 2012.

6.  Randy Jalem, Yuhei Mochizuki, Masanobu Nakayama, Kunihiro Nobuhara. True Global Minimum Structure Search in the LixCoO2 Composition Using Hybrid Evolutionary Algorithm. The 79th Convention of Electrochemical Society of Japan. Act City Hamamatsu, Hamamatsu City, Japan, March 29-31, 2012.

5.  Randy Jalem, Takahiro Aoyama, Masanobu Nakayama, Masayuki Nogami. Theoretical Evaluation of Olivine-Type LiMXO4 (M: Group 2, Group 3, Lanthanides, Group 13; X: Group 14, Group 15) Materials as Potential Solid Electrolytes for Li-ion Batteries. The 28th International JAPAN-KOREA Seminar on Ceramics. Okayama Convention Center, Okayama City, Japan. November 23-26, 2011.

4.  Randy Jalem, Takahiro Aoyama, Masanobu Nakayama, Masayuki Nogami. Exploration of Li Ionic Conductor with Olivine-Type Structure. The 24th Fall Meeting, Ceramics Society of Japan. Hokkaido University, September 7-9, 2011.

3.  Randy Jalem, Ryosuke Koike, Masanobu Nakayama, Masayuki Nogami. Formation of Single-Crystalline Porous Pt Nanoparticles with a Unique Nanocube-Mosaic Morphology and Their Electrocatalytic Properties. The 49th Symposium on Basic Science of Ceramics. Okayama Convention Center, Okayama City, Japan. January 11-12, 2011.

2.  ○R. Jalem, Nguyen Viet Long, Masanobu Nakayama, Tomokatsu Hayakawa, Masayuki Nogami. Electrochemical Investigation of Porous Platinum Nanoparticles (Poster Presentation). The 8th conference of The Japanese Sol-Gel Society. Toyota Memorial Hall, Higashiyama Campus, Nagoya University. July 29 –30, 2010.

1.  Maria Ophelia D. Jarligo and ○Randy Jalem. Computer-Aided Instruction on Structure of Crystalline Materials. 4th Samahang Pisika ng Visayas at Mindanao (Physics Society of Visayas and Mindanao) National Physics Workshop. University of San Carlos – Boys High School, Cebu City, Philippines. October 28 – 30, 2002.