Dr. Md Delowar Hossain is currently working as an Assistant Professor in the Department of Materials Science and Engineering (MSE) at King Fahd University of Petroleum & Minerals (KFUPM) since March 2024. Before joining KFUPM, Dr. Hossain worked as a Postdoctoral Fellow in the SUNCAT Center for Interface Science and Catalysis at Stanford University, USA from November 2020 to March 2024. Dr. Hossain received his Ph.D. degree in Chemical and Biological Engineering from the Hong Kong University of Science and Technology in 2020. During Ph.D., He worked as a visiting graduate research student in the Materials and Process Simulation Center (MSC) at California Institute of Technology (Caltech) in 2018-2019. He has completed his Bachelors and Master's degree in Applied Chemistry and Chemical Engineering from the University of Rajshahi, Bangladesh. Dr. Hossain research works have been published in top-tier journals such as Nature Communications, Advanced Energy Materials, Journal of American Chemical Society, ACS Catalysis, Carbon, Material Today, Matters, Nano Letters, Chem Catalysis etc., and have received great attention in the field of electrocatalysis for clean and sustainable energy development.

Research Interest:

Dr. Hossain research focus primarily involves atomistic understanding of electrochemical catalytic processes (mainly water splitting, liquid waste transformation, biomass catalysis, CO₂ valorization) that facilitate energy conversion and storage for renewable energy development, particularly using novel functional 2D heterogeneous electrocatalysts. He uses density functional theory calculations to understand electronic properties for materials of interest and elucidate the reaction mechanism and kinetics with the experimental and machine learning (ML) collaborations. His ultimate goal is to develop/design highly efficient and accurate atomistic theoretical model for sustainable chemical conversion systems that can create long-lasting changes to combat climate change.

Education Qualification

• Ph.D., Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, 2020
• M.Sc., Applied Chemistry and Chemical Engineering, University of Rajshahi, Bangladesh, 2014
• B.Sc., Applied Chemistry and Chemical Engineering, University of Rajshahi, Bangladesh, 2012

Research Experience

• Postdoctoral Fellow, SUNCAT Center for Interface Science and Catalysis, Stanford University, CA, USA, Nov 2020- Mar 2024
• Visiting Research Student, Materials and Process Simulation Center (MSC), California Institute of Technology (Caltech), CA, USA, Nov 2018 – Nov 2019
  

Courses Teaching:

• MSE 302: Polymeric Materials
• ME   216: Materials Science and Engineering
• MSE 411: Senior Design Project
  

Research Highlights

Representative Publications

• Md Delowar Hossain, Zhenjing Liu, Minghao Zhuang, Xingxu Yan, Gui-Liang Xu, Chaitanya A. Gadre, Abhishek Tyagi, Irfan Haider Abidi, Cheng-Jun Sun, Hoilun Wong, Xiaoqing Pan, Khalil Amine, Zhengtang Luo; Rational Design of Graphene‐Supported Single Atom Catalysts for Hydrogen Evolution Reaction; Adv. Energy Mat., 2019. 1803689
  
• Md Delowar Hossain, Yufeng Huang, Ted. H. Yu, William A. Goddard III and Zhengtang Luo; Reaction Mechanism and Kinetics for CO₂ Reduction on Nickel Single Atom Catalysts from Quantum Mechanics; Nat. Comm., 2020, 11 (1), 1-14
  
• Md Delowar Hossain, Qing Zhang, Tao Cheng, William A. Goddard III, Zhengtang Luo, Graphitization of low-density amorphous carbon for electrocatalysis electrodes from ReaxFF reactive dynamics, Carbon, 183, 2021, 940-947
  
• Md Delowar Hossain, Zhenjing Liu, Hongwei Liu, Abhishek Tyagi, Faisal Rehman, Jingwei Li, Mohammadreza Amjadian, Yuting Cai, William A Goddard III, and Zhengtang Luo; The Kinetics and Potential Dependence of the Hydrogen Evolution Reaction Optimized for the Basal Plane Te Vacancy Site of MoTe2, Chem Catal., 100489, 2023
  
• Jihyun Baek#, Md Delowar Hossain#, Pinaki Mukherjee, Junghwa Lee, Kirsten T Winther, Juyoung Leem, Yue Jiang, Hyun Suk Jung, William Chueh, Michal Bajdich, and Xiaolin Zheng; High Entropy Spinel Oxides for Oxygen Evolution Reaction: Synergistic Effects of Mixing and Strain. Nat. Comm., 2023,14 (1), 5936 (# Equal contributions)
  
• Lingze Wei#, Md Delowar Hossain#, Michael J. Boyd#, Jaime Aviles-Acosta, Melissa Kreider, Michaela Burke Stevens, Michal Bajdich, Thomas F. Jaramillo, Christopher Hahn; Insights into active sites and mechanisms of benzyl alcohol oxidation on nickel iron oxyhydroxide electrodes. ACS Catal. 2023, 13, 7, 4272–4282 (# Equal contributions)
  
• Zipeng Zhao, Md Delowar Hossain, Chunchuan Xu, Zijie Lu, Yi-Sheng Liu, Shang-Hsien Hsieh, Ilkeun Lee, Wenpei Gao, Jun Yang, Boris V. Merinov, Wang Xue, Zeyan Liu, Jingxuan Zhou, Zhengtang Luo, Xiangfeng Duan, Xiaoqing Pan, Francisco Zaera, Jinghua Guo, William A. Goddard III, Yu Huang; Tailoring a three-phase microenvironment for high-performance oxygen reduction reaction in proton exchange membrane fuel cell, Matter, 2020, 3, 1-7
  
• Faisal Rehman, Md Delowar Hossain, Abhishek Tyagi, Dong Lu, Bin Yuan, Zhengtang Luo; Engineering electrocatalyst for low-temperature N2 reduction to ammonia; Mat. Tod., 44, 2021, 136-167
  
• David M. Koshy, Md Delowar Hossain, Ryo Masuda, Yoshitaka Yoda, Leland B. Gee, Kabir Abiose, Huaxin Gong, Ryan Davis, Makoto Seto, Alessandro Gallo, Christopher Hahn, Michal Bajdich, Zhenan Bao, Thomas Jaramillo; Investigation of the structure of atomically dispersed NiNx sites in Ni, N-doped carbon electrocatalysts by 61Ni Mössbauer Spectroscopy and Simulations, J. Am. Chem. Soc., 144 (47), 21741-21750, 2022

Representative Conferences

• Md Delowar Hossain, Lingze Wei, Michael Boyd, Michaela Burke Stevens, Michal Bajdich, Thomas Jaramillo, Christopher Hahn; Understanding of active sites and reaction mechanisms for electrochemical biomass conversion on nickel-oxyhydroxide surface; ACS FALL 2023, San Francisco, CA (Oral)
• Md Delowar Hossain, Jihyun Baek, Kirsten Winther, Xiaolin Zheng, and Michal Bajdich; Effect of local strain to the activity and stability of high entropy oxides for efficient oxygen evolution reaction; ACS FALL 2023, San Francisco, CA (Oral)
• Md Delowar Hossain, Michal Bajdich; Coupling Potential Dependency and Spin Effects in Graphene-Based Single Atom Catalysts for Oxygen Evolution and Reduction Reactions, 2022 AIChE Annual Meeting, 2022, Phoenix Convention Center, Phoenix, AZ (Oral)
• Md Delowar Hossain, David M. Koshy, Frank Abild-Pedersen, Thomas F. Jaramillo, Michal Bajdich; A Theoretical Prediction of High-Spin Based Single Atom Electrocatalysts; The 27th North American Catalysis Society Meeting, 2022, NYC, NY, USA (Oral)
• Md Delowar Hossain, Zhengtang Luo, William A. Goddard III, Grand Canonical Potential Kinetics of CO2 Reduction Reaction over Graphene-Supported Single-Atom Catalysts, 236th ECS meeting, Hilton, Atlanta, 2019 (Oral)
• Md Delowar Hossain, Zhengtang Luo; Insight investigation about the origin of activity of single atom N-doped graphene electro catalyst for hydrogen evolution reaction; APS March Meeting, 2018, LA, CA, USA (Oral)
  

Voluntary Professional Service

• Peer Reviewer in few reputed journals such as AIP Advances, ACS AMI, Applied Energy, Material Today Chemistry, Current Opinion in Electrochemistry, Nature Catalysis, JACS, ACS catalysis.

Dr. Md Delowar Hossain is currently working as an Assistant Professor in the Department of Materials Science and Engineering (MSE) at King Fahd University of Petroleum & Minerals (KFUPM) since March 2024. Before joining KFUPM, Dr. Hossain worked as a Postdoctoral Fellow in the SUNCAT Center for Interface Science and Catalysis at Stanford University, USA from November 2020 to March 2024. Dr. Hossain received his Ph.D. degree in Chemical and Biological Engineering from the Hong Kong University of Science and Technology in 2020. During Ph.D., He worked as a visiting graduate research student in the Materials and Process Simulation Center (MSC) at California Institute of Technology (Caltech) in 2018-2019. He has completed his Bachelors and Master's degree in Applied Chemistry and Chemical Engineering from the University of Rajshahi, Bangladesh. Dr. Hossain research works have been published in top-tier journals such as Nature Communications, Advanced Energy Materials, Journal of American Chemical Society, ACS Catalysis, Carbon, Material Today, Matters, Nano Letters, Chem Catalysis etc., and have received great attention in the field of electrocatalysis for clean and sustainable energy development.

Research Interest:

Dr. Hossain research focus primarily involves atomistic understanding of electrochemical catalytic processes (mainly water splitting, liquid waste transformation, biomass catalysis, CO₂ valorization) that facilitate energy conversion and storage for renewable energy development, particularly using novel functional 2D heterogeneous electrocatalysts. He uses density functional theory calculations to understand electronic properties for materials of interest and elucidate the reaction mechanism and kinetics with the experimental and machine learning (ML) collaborations. His ultimate goal is to develop/design highly efficient and accurate atomistic theoretical model for sustainable chemical conversion systems that can create long-lasting changes to combat climate change.

Education Qualification

• Ph.D., Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, 2020
• M.Sc., Applied Chemistry and Chemical Engineering, University of Rajshahi, Bangladesh, 2014
• B.Sc., Applied Chemistry and Chemical Engineering, University of Rajshahi, Bangladesh, 2012

Research Experience

• Postdoctoral Fellow, SUNCAT Center for Interface Science and Catalysis, Stanford University, CA, USA, Nov 2020- Mar 2024
• Visiting Research Student, Materials and Process Simulation Center (MSC), California Institute of Technology (Caltech), CA, USA, Nov 2018 – Nov 2019
  

Courses Teaching:

• MSE 302: Polymeric Materials
• ME   216: Materials Science and Engineering
• MSE 411: Senior Design Project
  

Research Highlights

Representative Publications

• Md Delowar Hossain, Zhenjing Liu, Minghao Zhuang, Xingxu Yan, Gui-Liang Xu, Chaitanya A. Gadre, Abhishek Tyagi, Irfan Haider Abidi, Cheng-Jun Sun, Hoilun Wong, Xiaoqing Pan, Khalil Amine, Zhengtang Luo; Rational Design of Graphene‐Supported Single Atom Catalysts for Hydrogen Evolution Reaction; Adv. Energy Mat., 2019. 1803689
  
• Md Delowar Hossain, Yufeng Huang, Ted. H. Yu, William A. Goddard III and Zhengtang Luo; Reaction Mechanism and Kinetics for CO₂ Reduction on Nickel Single Atom Catalysts from Quantum Mechanics; Nat. Comm., 2020, 11 (1), 1-14
  
• Md Delowar Hossain, Qing Zhang, Tao Cheng, William A. Goddard III, Zhengtang Luo, Graphitization of low-density amorphous carbon for electrocatalysis electrodes from ReaxFF reactive dynamics, Carbon, 183, 2021, 940-947
  
• Md Delowar Hossain, Zhenjing Liu, Hongwei Liu, Abhishek Tyagi, Faisal Rehman, Jingwei Li, Mohammadreza Amjadian, Yuting Cai, William A Goddard III, and Zhengtang Luo; The Kinetics and Potential Dependence of the Hydrogen Evolution Reaction Optimized for the Basal Plane Te Vacancy Site of MoTe2, Chem Catal., 100489, 2023
  
• Jihyun Baek#, Md Delowar Hossain#, Pinaki Mukherjee, Junghwa Lee, Kirsten T Winther, Juyoung Leem, Yue Jiang, Hyun Suk Jung, William Chueh, Michal Bajdich, and Xiaolin Zheng; High Entropy Spinel Oxides for Oxygen Evolution Reaction: Synergistic Effects of Mixing and Strain. Nat. Comm., 2023,14 (1), 5936 (# Equal contributions)
  
• Lingze Wei#, Md Delowar Hossain#, Michael J. Boyd#, Jaime Aviles-Acosta, Melissa Kreider, Michaela Burke Stevens, Michal Bajdich, Thomas F. Jaramillo, Christopher Hahn; Insights into active sites and mechanisms of benzyl alcohol oxidation on nickel iron oxyhydroxide electrodes. ACS Catal. 2023, 13, 7, 4272–4282 (# Equal contributions)
  
• Zipeng Zhao, Md Delowar Hossain, Chunchuan Xu, Zijie Lu, Yi-Sheng Liu, Shang-Hsien Hsieh, Ilkeun Lee, Wenpei Gao, Jun Yang, Boris V. Merinov, Wang Xue, Zeyan Liu, Jingxuan Zhou, Zhengtang Luo, Xiangfeng Duan, Xiaoqing Pan, Francisco Zaera, Jinghua Guo, William A. Goddard III, Yu Huang; Tailoring a three-phase microenvironment for high-performance oxygen reduction reaction in proton exchange membrane fuel cell, Matter, 2020, 3, 1-7
  
• Faisal Rehman, Md Delowar Hossain, Abhishek Tyagi, Dong Lu, Bin Yuan, Zhengtang Luo; Engineering electrocatalyst for low-temperature N2 reduction to ammonia; Mat. Tod., 44, 2021, 136-167
  
• David M. Koshy, Md Delowar Hossain, Ryo Masuda, Yoshitaka Yoda, Leland B. Gee, Kabir Abiose, Huaxin Gong, Ryan Davis, Makoto Seto, Alessandro Gallo, Christopher Hahn, Michal Bajdich, Zhenan Bao, Thomas Jaramillo; Investigation of the structure of atomically dispersed NiNx sites in Ni, N-doped carbon electrocatalysts by 61Ni Mössbauer Spectroscopy and Simulations, J. Am. Chem. Soc., 144 (47), 21741-21750, 2022

Representative Conferences

• Md Delowar Hossain, Lingze Wei, Michael Boyd, Michaela Burke Stevens, Michal Bajdich, Thomas Jaramillo, Christopher Hahn; Understanding of active sites and reaction mechanisms for electrochemical biomass conversion on nickel-oxyhydroxide surface; ACS FALL 2023, San Francisco, CA (Oral)
• Md Delowar Hossain, Jihyun Baek, Kirsten Winther, Xiaolin Zheng, and Michal Bajdich; Effect of local strain to the activity and stability of high entropy oxides for efficient oxygen evolution reaction; ACS FALL 2023, San Francisco, CA (Oral)
• Md Delowar Hossain, Michal Bajdich; Coupling Potential Dependency and Spin Effects in Graphene-Based Single Atom Catalysts for Oxygen Evolution and Reduction Reactions, 2022 AIChE Annual Meeting, 2022, Phoenix Convention Center, Phoenix, AZ (Oral)
• Md Delowar Hossain, David M. Koshy, Frank Abild-Pedersen, Thomas F. Jaramillo, Michal Bajdich; A Theoretical Prediction of High-Spin Based Single Atom Electrocatalysts; The 27th North American Catalysis Society Meeting, 2022, NYC, NY, USA (Oral)
• Md Delowar Hossain, Zhengtang Luo, William A. Goddard III, Grand Canonical Potential Kinetics of CO2 Reduction Reaction over Graphene-Supported Single-Atom Catalysts, 236th ECS meeting, Hilton, Atlanta, 2019 (Oral)
• Md Delowar Hossain, Zhengtang Luo; Insight investigation about the origin of activity of single atom N-doped graphene electro catalyst for hydrogen evolution reaction; APS March Meeting, 2018, LA, CA, USA (Oral)
  

Voluntary Professional Service

• Peer Reviewer in few reputed journals such as AIP Advances, ACS AMI, Applied Energy, Material Today Chemistry, Current Opinion in Electrochemistry, Nature Catalysis, JACS, ACS catalysis.

Dr. Md Delowar Hossain is currently working as an Assistant Professor in the Department of Materials Science and Engineering (MSE) at King Fahd University of Petroleum & Minerals (KFUPM) since March 2024. Before joining KFUPM, Dr. Hossain worked as a Postdoctoral Fellow in the SUNCAT Center for Interface Science and Catalysis at Stanford University, USA from November 2020 to March 2024. Dr. Hossain received his Ph.D. degree in Chemical and Biological Engineering from the Hong Kong University of Science and Technology in 2020. During Ph.D., He worked as a visiting graduate research student in the Materials and Process Simulation Center (MSC) at California Institute of Technology (Caltech) in 2018-2019. He has completed his Bachelors and Master's degree in Applied Chemistry and Chemical Engineering from the University of Rajshahi, Bangladesh. Dr. Hossain research works have been published in top-tier journals such as Nature Communications, Advanced Energy Materials, Journal of American Chemical Society, ACS Catalysis, Carbon, Material Today, Matters, Nano Letters, Chem Catalysis etc., and have received great attention in the field of electrocatalysis for clean and sustainable energy development.

Research Interest:

Dr. Hossain research focus primarily involves atomistic understanding of electrochemical catalytic processes (mainly water splitting, liquid waste transformation, biomass catalysis, CO₂ valorization) that facilitate energy conversion and storage for renewable energy development, particularly using novel functional 2D heterogeneous electrocatalysts. He uses density functional theory calculations to understand electronic properties for materials of interest and elucidate the reaction mechanism and kinetics with the experimental and machine learning (ML) collaborations. His ultimate goal is to develop/design highly efficient and accurate atomistic theoretical model for sustainable chemical conversion systems that can create long-lasting changes to combat climate change.

Education Qualification

• Ph.D., Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, 2020
• M.Sc., Applied Chemistry and Chemical Engineering, University of Rajshahi, Bangladesh, 2014
• B.Sc., Applied Chemistry and Chemical Engineering, University of Rajshahi, Bangladesh, 2012

Research Experience

• Postdoctoral Fellow, SUNCAT Center for Interface Science and Catalysis, Stanford University, CA, USA, Nov 2020- Mar 2024
• Visiting Research Student, Materials and Process Simulation Center (MSC), California Institute of Technology (Caltech), CA, USA, Nov 2018 – Nov 2019
  

Courses Teaching:

• MSE 302: Polymeric Materials
• ME   216: Materials Science and Engineering
• MSE 411: Senior Design Project
  

Research Highlights

Representative Publications

• Md Delowar Hossain, Zhenjing Liu, Minghao Zhuang, Xingxu Yan, Gui-Liang Xu, Chaitanya A. Gadre, Abhishek Tyagi, Irfan Haider Abidi, Cheng-Jun Sun, Hoilun Wong, Xiaoqing Pan, Khalil Amine, Zhengtang Luo; Rational Design of Graphene‐Supported Single Atom Catalysts for Hydrogen Evolution Reaction; Adv. Energy Mat., 2019. 1803689
  
• Md Delowar Hossain, Yufeng Huang, Ted. H. Yu, William A. Goddard III and Zhengtang Luo; Reaction Mechanism and Kinetics for CO₂ Reduction on Nickel Single Atom Catalysts from Quantum Mechanics; Nat. Comm., 2020, 11 (1), 1-14
  
• Md Delowar Hossain, Qing Zhang, Tao Cheng, William A. Goddard III, Zhengtang Luo, Graphitization of low-density amorphous carbon for electrocatalysis electrodes from ReaxFF reactive dynamics, Carbon, 183, 2021, 940-947
  
• Md Delowar Hossain, Zhenjing Liu, Hongwei Liu, Abhishek Tyagi, Faisal Rehman, Jingwei Li, Mohammadreza Amjadian, Yuting Cai, William A Goddard III, and Zhengtang Luo; The Kinetics and Potential Dependence of the Hydrogen Evolution Reaction Optimized for the Basal Plane Te Vacancy Site of MoTe2, Chem Catal., 100489, 2023
  
• Jihyun Baek#, Md Delowar Hossain#, Pinaki Mukherjee, Junghwa Lee, Kirsten T Winther, Juyoung Leem, Yue Jiang, Hyun Suk Jung, William Chueh, Michal Bajdich, and Xiaolin Zheng; High Entropy Spinel Oxides for Oxygen Evolution Reaction: Synergistic Effects of Mixing and Strain. Nat. Comm., 2023,14 (1), 5936 (# Equal contributions)
  
• Lingze Wei#, Md Delowar Hossain#, Michael J. Boyd#, Jaime Aviles-Acosta, Melissa Kreider, Michaela Burke Stevens, Michal Bajdich, Thomas F. Jaramillo, Christopher Hahn; Insights into active sites and mechanisms of benzyl alcohol oxidation on nickel iron oxyhydroxide electrodes. ACS Catal. 2023, 13, 7, 4272–4282 (# Equal contributions)
  
• Zipeng Zhao, Md Delowar Hossain, Chunchuan Xu, Zijie Lu, Yi-Sheng Liu, Shang-Hsien Hsieh, Ilkeun Lee, Wenpei Gao, Jun Yang, Boris V. Merinov, Wang Xue, Zeyan Liu, Jingxuan Zhou, Zhengtang Luo, Xiangfeng Duan, Xiaoqing Pan, Francisco Zaera, Jinghua Guo, William A. Goddard III, Yu Huang; Tailoring a three-phase microenvironment for high-performance oxygen reduction reaction in proton exchange membrane fuel cell, Matter, 2020, 3, 1-7
  
• Faisal Rehman, Md Delowar Hossain, Abhishek Tyagi, Dong Lu, Bin Yuan, Zhengtang Luo; Engineering electrocatalyst for low-temperature N2 reduction to ammonia; Mat. Tod., 44, 2021, 136-167
  
• David M. Koshy, Md Delowar Hossain, Ryo Masuda, Yoshitaka Yoda, Leland B. Gee, Kabir Abiose, Huaxin Gong, Ryan Davis, Makoto Seto, Alessandro Gallo, Christopher Hahn, Michal Bajdich, Zhenan Bao, Thomas Jaramillo; Investigation of the structure of atomically dispersed NiNx sites in Ni, N-doped carbon electrocatalysts by 61Ni Mössbauer Spectroscopy and Simulations, J. Am. Chem. Soc., 144 (47), 21741-21750, 2022

Representative Conferences

• Md Delowar Hossain, Lingze Wei, Michael Boyd, Michaela Burke Stevens, Michal Bajdich, Thomas Jaramillo, Christopher Hahn; Understanding of active sites and reaction mechanisms for electrochemical biomass conversion on nickel-oxyhydroxide surface; ACS FALL 2023, San Francisco, CA (Oral)
• Md Delowar Hossain, Jihyun Baek, Kirsten Winther, Xiaolin Zheng, and Michal Bajdich; Effect of local strain to the activity and stability of high entropy oxides for efficient oxygen evolution reaction; ACS FALL 2023, San Francisco, CA (Oral)
• Md Delowar Hossain, Michal Bajdich; Coupling Potential Dependency and Spin Effects in Graphene-Based Single Atom Catalysts for Oxygen Evolution and Reduction Reactions, 2022 AIChE Annual Meeting, 2022, Phoenix Convention Center, Phoenix, AZ (Oral)
• Md Delowar Hossain, David M. Koshy, Frank Abild-Pedersen, Thomas F. Jaramillo, Michal Bajdich; A Theoretical Prediction of High-Spin Based Single Atom Electrocatalysts; The 27th North American Catalysis Society Meeting, 2022, NYC, NY, USA (Oral)
• Md Delowar Hossain, Zhengtang Luo, William A. Goddard III, Grand Canonical Potential Kinetics of CO2 Reduction Reaction over Graphene-Supported Single-Atom Catalysts, 236th ECS meeting, Hilton, Atlanta, 2019 (Oral)
• Md Delowar Hossain, Zhengtang Luo; Insight investigation about the origin of activity of single atom N-doped graphene electro catalyst for hydrogen evolution reaction; APS March Meeting, 2018, LA, CA, USA (Oral)
  

Voluntary Professional Service

• Peer Reviewer in few reputed journals such as AIP Advances, ACS AMI, Applied Energy, Material Today Chemistry, Current Opinion in Electrochemistry, Nature Catalysis, JACS, ACS catalysis.