Publications

Peer Reviewed journal Articles:

• A. Darafsheh, H. Lavvafi, R. Taleei, & R. Khan, “Mitigating disruptions, and scalability of radiation oncology physics work during the COVID‐19 pandemic”. Journal of Applied Clinical Medical Physics, May 2020.
• E. Parsai, A. Jahadakbar, H. Lavvafi, M. Elahinia, “A New and Innovative Device to Retract Rectum during Radiation Therapy Applications of Pelvic Tumors”, Journal of Applied Clinical Medical Physics, 20(1), 194-199 (2019)
• A. Hajalilou, A. Kianvash, H. Lavvafi, and K. Shameli, “Nanostructured soft magnetic materials synthesized via mechanical alloying: a review”. Journal of Materials Science: Materials in Electronics, January 2018.
• A. Hajalilou, A. Kianvash, K. Shameli, and H. Lavvafi, “Carbonyl iron based magnetorheological effects with silver nanoparticles via green-assisted coating”. Applied Physics Letters, June 2017.
• H. Lavvafi, M. E. Lewandowski, D. Schwam, J. J. Lewandowski “Effects of surface laser treatments on microstructure, tension, and fatigue behavior of AISI 316LVM biomedical wires” Materials Science and Engineering A Journal, March 2017.
• A. Hajalilou, S.A. Mazlan, M. Abbasi, H. Lavvafi, “Fabrication of spherical CoFe₂O₄ nanoparticles via sol–gel and hydrothermal methods and investigation of their magnetorheological characteristics” – RSC Advances, August 2016
• H. Lavvafi, J.R. Lewandowski, J.J. Lewandowski “Flex Bending Fatigue Testing of Wires, Foils, and Ribbons” Materials Science and Engineering A Journal, April 2014.

Peer reviewed oral/poster Presentations

• M Bakhtiari, D Gabeau, H Lavvafi, K Morrison, B Matthews, C Nanna, “Utilizing Driver Diagrams to Implement Continuous Quality Improvement in Radiation Oncology Departments” ASTRO Annual meeting 2020, October 2020, Miami Beach, Fl. (Submitted)
• A Sethi, J Cozzi, H Lavvafi, J Ingram, R Patel, ” Sensitivity of Enhanced Gamma Index to Patient Specific VMAT QA ” AAPM Annual meeting 2019, July 2019, San Antonio, Tx. (ePoster)
• E Omari, H Lavvafi , J Roeske , A Sethi, ” PDD Analysis of a 6 MV FFF Beam From a Jawless Linear Accelerator with Double Stacked MLCs in the Presence of a Magnetic Field” AAPM Annual meeting 2019, July 2019, San Antonio, Tx. (ePoster)
• H. Lavvafi , E. Abouzari-lotf, M. Surucu, J. Roeske, A. Sethi , “Dosimetric Evaluation of An Improved Design for HDR Surface Applicators”  AAPM Annual meeting 2018, August 2018, Nashville, Tennesse.
• H. Lavvafi, S. Parsai, A. Jahadakbar, A. Tiwari, M. Elahinia, V. Devabhaktuni, E. Parsai, “An Innovative Rectal Repositioning Device for Radiotherapy Applications of Pelvic Cancer: Design Methodology and Simulation Studies”  AAPM Annual meeting 2017, August 2017, Denver, Colorado.
• H. Lavvafi, A. Tiwari, M. Pourriahi, V. Devabhaktuni, M. Elahinia, E. Parsai, “Reducing Radiation Exposure to the Rectum during Prostate Cancer Radiation Therapy using NiTi Shape Memory Alloy” Pan American Materials Congress: Advanced Manufacturing Symposium, TMS Annual conference, February 2017, San Diego, California.
  • Won the national AAPM Expanding Horizons Research Award
• H. Lavvafi, M. Porriahi, H. Elahinia, M. Elahinia, E. Parsai “A Novel Approach for Sparing Critical Organs At Risk For Cancer Patients Undergoing Radiation Oncology Treatments”  presented for the AAPM Ohio River Valley Chapter Spring Educational Symposium, April 2016.
  • AAPM 2016 Poster presentation SU-F-T-505  updated work and the simulation studies
• H. Lavvafi, O. Quintana, B. Aboud, “The High Cycle Fatigue performance of Metal Injection Molded Ti6Al4V alloy after Porous Coating Sintering intended for Biological Ingrowth.,” Ti-2015: The 13th World Conference on Titanium Biomedical and Healthcare Applications, August 2015.
• H. Lavvafi, J.R. Lewandowski, J.J. Lewandowski “Flex Bending Fatigue Testing of Wires, Foils, and Ribbons” Materials Science and Engineering A Journal, April 2014.
• H. Lavvafi, D. Dudzinski, M. Young, J.L. Gbur, J.R. Lewandowski, J.J. Lewandowski, “Parametric Studies on Femtosecond Laser Cutting of Ni-Ti Shape Memory Alloy,” MS&T 2012 Next Generation Biomaterials Symposium, October 2012.

• H. Lavvafi, J.R. Lewandowski, M.E. Lewandowski, D. Schwam, J.J. Lewandowski “The Effects of Laser Machining on Structure and Mechanical Properties of 316LVM Stainless Steel Wires” 30^th International Congress on Applications of Lasers & Electro-Optics (ICALEO) 2011.
• H. Lavvafi, J.R. Lewandowski, M.E. Lewandowski, D. Schwam, J.J. Lewandowski “The Effects of Laser Machining on Structure and Mechanical Properties of Heat resistant micro-channel Heat Exchanger materials” Materials Science and Technology conference, 2011.
• H. Lavvafi, J.R. Lewandowski, D. Dudzinski, M. Young, D. Schwam, J.J. Lewandowski The Effects of Ultrafast Laser Micromachining on Structure and Mechanical Properties of 316 LVM Stainless Steel Wires TMS 2012 Fatigue and Corrosion Damage in Metallic Materials: Fundamentals, Modeling and Prevention Symposium.
• J. Gbur, H. Lavvafi, M. Young, J.J. Lewandowski “Bending Fatigue of Laser Machined 316LVM and Nitinol Wires” ASTM E08 Fatigue and Fracture Student Presentation, November 2012.
• J. Gbur, H. Lavvafi, J.R. Lewandowski, M. Young, J.J. Lewandowski Rotating Bending Fatigue and Flex Bending Fatigue of Nitinol and 316LVM Wires Used in the Biomedical Industry, MS&T Novel Methods for Deformation Testing of Metals and Materials Symposium, October 2012.
• J. Gbur, J. R. Lewandowski, H. Lavvafi, M. Young, D. Schwam, J. McGuffin-Cawley, M. Nathal, Santo Padula II, J.J. Lewandowski “Nitinol Commercialization Accelerator – Ohio Third Frontier“ TMS 2013 Physical and Mechanical Metallurgy of Shape Memory Alloys Symposium.
• J. Gbur, H. Lavvafi, M. Young, J.J. Lewandowski “Fatigue Analysis of Laser-Treated Nitinol Wires” TMS 2013 Physical and Mechanical Metallurgy of Shape Memory Alloys Symposium.
• H. Lavvafi, H. Khorsand, A. Shafyei, F. Nazemi ” Effect of Boron and Sintering Temperature on the Sintering and Mechanical Properties of Sintered Steel “, PM Auto 05. 4th International Conference on Powder Metallurgy for Automotive Parts. Isfahan, 17.-21.4.2005. Ed. A.Arvad, H.Danninger. Mashad Powder Metallurgy Co. 2005.
• H. Lavvafi, A. Zarei, S.M.K. Hosseini “An Investigation on the Effects of Primary Macrostructure on Annealability of Electrolytic Tough Pitch Copper“, Iranian Journal of Materials Engineering, 2003.
• H. Lavvafi, A. Zarei, S.M.K. Hosseini “The Effects of Annealing and Cold Work Parameters on the Mechanical Properties of Electrolytic Tough Pitch Copper“, 5th Iranian Metallurgical Engineering Congress, Amirkabir University of Technology (Tehran Polytechnic), October 2001.

Invited Speaker:

• H. Lavvafi and S. Egan “Materials selection and substitution for medical devices: DePuy Orthopaedics case study” Invited speaker for CES Granta global webinar, March 2015.

Book :

• A. Hajalilou · S. Mazlan · H. Lavvafi · K. Shameli. Field Responsive Fluids as Smart Materials. S.l.: Springer Verlag, Singapor, 2016. Print. ISBN 978-981-10-2495-5

Book Chapter:

• Book chapter in Lawrence, J. R., ed. “Reliability testing of laser treated implantable alloys” Advances in Laser Materials Processing. 2nd ed. N.p.: Woodhead Series, Elsevier, 2018  Pages 731–761.

Posters:

• Lavvafi, A. Tiwari, A. Jahadakbar, M Elahinia, V Devabhaktuni, E Parsai  Rectal Dose Sparing during Prostate Cancer Radiotherapy Employing Nitinol Shape Memory Alloy, Ohio River Valley AAPM Chapter, November 2016.

• Lavvafi, M. Pourriahi, H. Elahinia , M. Elahinia E. Parsai A Novel Approach for Sparing Critical Organs At Risk For Cancer Patients Undergoing Radiation Oncology Treatments  AAPM Annual conference, August 2016.

• Nitinol Commercialization Accelerator – Ohio Third Frontier” JL Gbur, JR Lewandowski, H Lavvafi, M Young, D Schwam, JD McGuffin-Cawley, MV Nathal, S. Padula II, JJ Lewandowski, presented at SAS fifty-fifth annual conference, May 2012, TMS Annual Meeting, March 2012 and ShowCASE 2013.

Patents:

• Gamble, C. Roth, M. Daneshvar, M, Lavvafi, H. 2013. Deck board fastener and arrangement. U.S. Patent Application 20140366334, Issued: Aug, 2016.