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Proceedings Papers

Adsorption and Tribological Properties of Perfluoropolyether Lubricant Films Having Main-Chains With Different Carbon Number

Hiroshi Tani, Yuki Yamaji, Ryosuke Sagata, Tomomi Hatta, Renguo Lu, Shinji Koganezawa, Norio Tagawa
Proc. ASME. ISPS2023, ASME 2023 32nd Conference on Information Storage and Processing Systems, V001T04A001, August 28–29, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2023-109769
https://doi.org/10.1115/ISPS2023-109769
View Paper titled, Adsorption and Tribological Properties of Perfluoropolyether Lubricant Films Having Main-Chains With Different Carbon Number
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Topics: Carbon, Chain, Lubricants, Tribology, Disks, Clearances (Engineering), Wear
Proceedings Papers

Scratch Detection on Hard Disk Drive Media to Reduce Head Disk Interaction and Prevent Data Loss

Karthik Venkatesh, Abhishek Srivastava, Rahul Rai, Bernhard Knigge
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T02A007, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-65295
https://doi.org/10.1115/ISPS2021-65295
View Paper titled, Scratch Detection on Hard Disk Drive Media to Reduce Head Disk Interaction and Prevent Data Loss
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Topics: Disks, Delamination, Horizontal directional drilling, Modeling, Parameter estimation
Proceedings Papers

Control of Head Smear Generated From DLC Films Using an External Electric Field

Hiroshi Tani, Renguo Lu, Shinji Koganezawa, Norio Tagawa
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T05A002, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-63202
https://doi.org/10.1115/ISPS2021-63202
View Paper titled, Control of Head Smear Generated From DLC Films Using an External Electric Field
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Topics: Carbon, Diamond films, Diamonds, Disks, Electric fields, Heat, Magnetic recording
Proceedings Papers

Computational and Experimental Investigation of Contact Detect Response of a Head-Integrated Thermistor on HAMR vs. PMR Media

Manuel C. Anaya-Dufresne, Yixuan Li, M. D. Murthy Peri, James Kiely, Michael T. Johnson, Kent Bodurtha, Matthew Carper
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T05A004, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-66171
https://doi.org/10.1115/ISPS2021-66171
View Paper titled, Computational and Experimental Investigation of Contact Detect Response of a Head-Integrated Thermistor on HAMR vs. PMR Media
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Topics: Clearances (Engineering), Computer simulation, Disks, Electrical resistance, Heat, Horizontal directional drilling, Magnetic recording, Modeling
Proceedings Papers

Identification of Factors Affecting Disk Drive’s Performance in Data Server by Use of Decision Tree Learning Method

Yi-Ju Liao, Jen-Yuan (James) Chang
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T02A006, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-65277
https://doi.org/10.1115/ISPS2021-65277
View Paper titled, Identification of Factors Affecting Disk Drive’s Performance in Data Server by Use of Decision Tree Learning Method
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Topics: Disks, Horizontal directional drilling, Algorithms, Data centers, Entropy, Experimental analysis, Machinery, Noise (Sound), Resonance, Vibration
Proceedings Papers

Experimental Study of Nanoscale Head-Disk Heat Transfer In Heat-Assisted Magnetic Recording

Qilong Cheng, David B. Bogy
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T05A001, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-62275
https://doi.org/10.1115/ISPS2021-62275
View Paper titled, Experimental Study of Nanoscale Head-Disk Heat Transfer In Heat-Assisted Magnetic Recording
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Topics: Disks, Heat, Heat transfer, Magnetic recording, Nanoscale phenomena, Lasers, Temperature, Semiconductor wafers, Heating, Nanoscale heat transfer
Proceedings Papers

Active-Passive Vibration Control for Fans in the Data Server

Han-Sheng Chen, Jen-Yuan (James) Chang
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T03A003, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-65266
https://doi.org/10.1115/ISPS2021-65266
View Paper titled, Active-Passive Vibration Control for Fans in the Data Server
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Topics: Fans, Horizontal directional drilling, Vibration control, Disks, Vibration, Actuators, Analytical methods, Mechatronic devices, Vibration control equipment
Proceedings Papers

Material Transfer From Media to Head in Heat Assisted Magnetic Recording (HAMR)

Shaomin Xiong, Robert Smith, Qing Dai, Erhard Schreck
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T05A003, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-64984
https://doi.org/10.1115/ISPS2021-64984
View Paper titled, Material Transfer From Media to Head in Heat Assisted Magnetic Recording (HAMR)
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Topics: Disks, Heat, Magnetic recording
Proceedings Papers

A Method to Reduce Head-Disk Interface (HDI) Degradation Risk During Thermal Asperity (TA) Mapping in a Hard Disk Drive

Abhishek Srivastava, Rahul Rai, Karthik Venkatesh, Bernhard Knigge
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T01A002, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1960
https://doi.org/10.1115/ISPS2020-1960
View Paper titled, A Method to Reduce Head-Disk Interface (HDI) Degradation Risk During Thermal Asperity (TA) Mapping in a Hard Disk Drive
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Topics: Disks, Risk, Calibration, Reliability, Sensors
Proceedings Papers

Ranking of Thermal Asperity (TA) Interaction During Seeking Under Various Fly-Height Conditions

Abhishek Srivastava, Bernd Lamberts, Ning Li, Bernhard Knigge
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T01A003, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1962
https://doi.org/10.1115/ISPS2020-1962
View Paper titled, Ranking of Thermal Asperity (TA) Interaction During Seeking Under Various Fly-Height Conditions
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Topics: Cylinders, Disks, Engineering standards, Horizontal directional drilling, Theoretical analysis
Proceedings Papers

Numerical and Experimental Investigation of Nanoscale Heat Transfer Between a Flying Head Over a Rotating Disk

Siddhesh V. Sakhalkar, Qilong Cheng, David B. Bogy
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T05A003, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1906
https://doi.org/10.1115/ISPS2020-1906
View Paper titled, Numerical and Experimental Investigation of Nanoscale Heat Transfer Between a Flying Head Over a Rotating Disk
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Topics: Nanoscale heat transfer, Rotating disks, Disks, Adhesion, Magnetic recording, Heat transfer, Computer simulation, Failure, Friction, Heat
Proceedings Papers

Investigation of Smear Formation Mechanism From DLC Film by Heating

Hiroshi Tani, Renguo Lu, Shinji Koganezawa, Norio Tagawa
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T05A001, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1902
https://doi.org/10.1115/ISPS2020-1902
View Paper titled, Investigation of Smear Formation Mechanism From DLC Film by Heating
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Topics: Carbon, Diamond films, Disks, Heating, Hydrogen, Temperature, Nitrogen, Diamonds, Heat, Magnetic recording
Proceedings Papers

Study of Contact Detect Response for PMR and HAMR Media Using the Integrated Thermistor Based Proximity Sensor

M. D. Murthy Peri, James Kiely, Manuel C. Anaya-Dufresne, Kent Bodurtha
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T05A005, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1958
https://doi.org/10.1115/ISPS2020-1958
View Paper titled, Study of Contact Detect Response for PMR and HAMR Media Using the Integrated Thermistor Based Proximity Sensor
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Topics: Clearances (Engineering), Disks, Heat conduction, Heat transfer, Sensors, Thermal conductivity
Proceedings Papers

A Method for Characterizing the Head-Disk Interface Dynamics Near the Touchdown Conditions Using the Magnetic Fly-Height

Rahul Rai, Abhishek Srivastava, Bernhard Knigge, Aravind N. Murthy
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T10A001, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1961
https://doi.org/10.1115/ISPS2020-1961
View Paper titled, A Method for Characterizing the Head-Disk Interface Dynamics Near the Touchdown Conditions Using the Magnetic Fly-Height
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Topics: Disks, Dynamics (Mechanics), Clearances (Engineering), Horizontal directional drilling, Air bearings, Density, Design, Meteorology, Risk, Signals
Proceedings Papers

Disk Protrusion Measurement in a Back-Heating Study for Heat Assisted Magnetic Recording

Shaomin Xiong, Robert Smith, Erhard Schreck
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T05A004, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1950
https://doi.org/10.1115/ISPS2020-1950
View Paper titled, Disk Protrusion Measurement in a Back-Heating Study for Heat Assisted Magnetic Recording
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Topics: Disks, Heat, Heat transfer, Heating, Magnetic recording, Thermal management
Proceedings Papers

Development of Novel Rotary Magnetic Encoder

Kai-Yang Peng, Jen-Yuan (James) Chang
Proc. ASME. ISPS2019, ASME 2019 28th Conference on Information Storage and Processing Systems, V001T08A004, June 27–28, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2019-7502
https://doi.org/10.1115/ISPS2019-7502
View Paper titled, Development of Novel Rotary Magnetic Encoder
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Topics: Design, Disks, Displacement measurement, Elongation, Encryption, Ferromagnetic materials, Finite element analysis, Flanges, Mechatronics, Permanent magnets
Proceedings Papers

A Method to Detect Head Media Spacing Change in a Hard Disk Drive Using an Embedded Contact Sensor

Rahul Rai, Puneet Bhargava, Bernhard Knigge, Aravind N. Murthy
Proc. ASME. ISPS2019, ASME 2019 28th Conference on Information Storage and Processing Systems, V001T01A001, June 27–28, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2019-7457
https://doi.org/10.1115/ISPS2019-7457
View Paper titled, A Method to Detect Head Media Spacing Change in a Hard Disk Drive Using an Embedded Contact Sensor
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Topics: Disks, Sensors, Clearances (Engineering), Contamination, Dynamic response, Failure, Horizontal directional drilling, Wear
Proceedings Papers

Hybrid Lubricant Film With High Bonding Ratio and High Coverage

Hiroshi Tani, Yuki Uesaraie, Renguo Lu, Shinji Koganezawa, Norio Tagawa
Proc. ASME. ISPS2019, ASME 2019 28th Conference on Information Storage and Processing Systems, V001T03A001, June 27–28, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2019-7428
https://doi.org/10.1115/ISPS2019-7428
View Paper titled, Hybrid Lubricant Film With High Bonding Ratio and High Coverage
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Topics: Bonding, Lubricants, Photoelectrons, Chemical vapor deposition, Disks, Friction, Heat, Magnetic recording
Proceedings Papers

Air Bearing Pushback in Heat Assisted Magnetic Recording

Shaomin Xiong, Robert Smith, Chanh Nguyen, Youfeng Zhang, Yeoungchin Yoon
Proc. ASME. ISPS2019, ASME 2019 28th Conference on Information Storage and Processing Systems, V001T03A007, June 27–28, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2019-7503
https://doi.org/10.1115/ISPS2019-7503
View Paper titled, Air Bearing Pushback in Heat Assisted Magnetic Recording
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Topics: Air bearings, Disks, Heat, Magnetic recording
Proceedings Papers

Evolution of Transferred Lubricant Distributions on the Slider Surface Under Ambient and Laser-Heating Conditions

Ryan W. Hetzel, Shao Wang, Jonathon R. Lawry, Ahmed H. Alsafwani
Proc. ASME. ISPS2019, ASME 2019 28th Conference on Information Storage and Processing Systems, V001T03A005, June 27–28, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2019-7458
https://doi.org/10.1115/ISPS2019-7458
View Paper titled, Evolution of Transferred Lubricant Distributions on the Slider Surface Under Ambient and Laser-Heating Conditions
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Topics: Disks, Evaporation, Heating, Lasers, Lubricants