发布求助
文献互助 智能选刊 最新文献

2009 Asia-Pacific Magnetic Recording Conference最新文献

筛选
英文 中文
Probabilistic analysis of off-track capability for higher density disk drives 高密度磁盘驱动器脱轨能力的概率分析
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925368
K. Aruga
{"title":"Probabilistic analysis of off-track capability for higher density disk drives","authors":"K. Aruga","doi":"10.1109/APMRC.2009.4925368","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925368","url":null,"abstract":"To increasing track density, off-track capability was calculated by using theoretical probabilistic positioning model and definition of data error rate. The results agree with experimental value. This shows the validity of unified probabilistic treatment between mechanical positioning and read write process.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129691135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Large magnetic moment obtained in Cu-doped ZnO nanoclusters 在cu掺杂ZnO纳米团簇中获得了大磁矩
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925360
J. Cheong, T. Chen, B. Tay, B. Liu, B. Lim
{"title":"Large magnetic moment obtained in Cu-doped ZnO nanoclusters","authors":"J. Cheong, T. Chen, B. Tay, B. Liu, B. Lim","doi":"10.1109/APMRC.2009.4925360","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925360","url":null,"abstract":"Cu-doped ZnO nanocluster-assembled films were deposited by nanocluster-beam deposition. Zn<inf>0.985</inf>Cu<inf>0.014</inf>O nanoclusters remained in wurtzite structure with size of 8 nm. Room-temperature ferromagnetism was observed in the Cu doped ZnO nanocluster-assembled film. Moreover, it exhibited a large saturated magnetization of 1.37µ<inf>B</inf>/Cu and increased to 3.68µ<inf>B</inf>/Co after the deposition time was increased. The possible mechanisms on the observed ferromagnetism and enhanced magnetic moments are discussed here.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129795157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Feasibility of modeling air bearing as linear springs in hard disk drive 将空气轴承建模为硬盘直线弹簧的可行性
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925415
M. Liu, W. Z. Lin, F. F. Yap, E. Ong
{"title":"Feasibility of modeling air bearing as linear springs in hard disk drive","authors":"M. Liu, W. Z. Lin, F. F. Yap, E. Ong","doi":"10.1109/APMRC.2009.4925415","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925415","url":null,"abstract":"A model to predict the shock response of a 1.8-inch hard disk drive (HDD) is developed and verified by experiment. The feasibility of modeling the air bearing as linear springs is investigated. Result shows that when the vibration of the arm-suspension is concerned, the air bearing between the disk and slider can be modeled by linear springs to speed up the simulation.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126243839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Media testing technology for magnetic defects detection and measurement 介质磁缺陷检测与测量技术
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925371
S. Leong, B. Santoso, C. Ong, J.B. Lim, S.B. Hu, Z. Yuan
{"title":"Media testing technology for magnetic defects detection and measurement","authors":"S. Leong, B. Santoso, C. Ong, J.B. Lim, S.B. Hu, Z. Yuan","doi":"10.1109/APMRC.2009.4925371","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925371","url":null,"abstract":"As areal density increases towards TB/in2 domain, improved detection capability of media defects become more critical. We have developed a media tester with concurrent multi-functional testing. Testing results using specially fabricated sample for missing pulse and optical surface analyzer measurement were compared. The former was found superior in detection sensitivity and resolution, and shown to be useful also for indirect detection of media surface physical variations. However the missing pulse approach needs to be correlated with other concurrent tests such as Laser Doppler Vibrometry and Acoustic Emission, so that spurious results can be eliminated. Such concurrent testing on a single tester is important towards providing an “accurate picture” of the tested media surface and condition.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130808985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impacts of windowed backing layer on write-to-read coupling on suspension interconnection 带窗背衬层对悬架互连中读写耦合的影响
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925414
K. Prachumrasee, S. Swatdiponphallop, R. Sivaratana, N. Chankum, L. Ung, A. Siritaratiwat
{"title":"Impacts of windowed backing layer on write-to-read coupling on suspension interconnection","authors":"K. Prachumrasee, S. Swatdiponphallop, R. Sivaratana, N. Chankum, L. Ung, A. Siritaratiwat","doi":"10.1109/APMRC.2009.4925414","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925414","url":null,"abstract":"The effect of backing layer windowing on write-to-read coupling based on s-parameter analysis by using 3D simulation tool is studied. The two different windowed structure patterns of TSA interconnection are compared to observe the transmission coefficient of write-to-read coupling. From simulation results, it is found that the windowed structure in the middle of the backing layer shows smaller transmission coefficient than that at lateral of the backing layer.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115339559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid continuum-DSMC and particle-laden flow modeling in the Head-Disk Interface gap 头盘界面间隙中连续- dsmc和颗粒负载混合流动模型
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925411
J. Benzi, M. Damodaran
{"title":"Hybrid continuum-DSMC and particle-laden flow modeling in the Head-Disk Interface gap","authors":"J. Benzi, M. Damodaran","doi":"10.1109/APMRC.2009.4925411","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925411","url":null,"abstract":"Airflow modeling in the vicinity of the Head-Disk Interface (HDI) gap in a modern Hard Disk Drive (HDD) enclosure using the DSMC method is discussed. A hybrid continuum-DSMC model based on the Schwarz Alternating method is employed to couple the rarefied flow in the HDI region which is modeled by the DSMC method to the continuum flow outside the slider modeled by Navier-Stokes equation. Modeling of particle-laden flow in the HDI gap is also described in this work. A two-phase model has been incorporated in a parallel three dimensional DSMC method to enable computation of particle trajectories in the HDI gap.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114971075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Slider-disk contact characterization using MR sensor as transducer 用磁流变传感器作为换能器的滑盘接触特性
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925370
L. Ng, M. Zhang, Y.S. Ma, B. Liu
{"title":"Slider-disk contact characterization using MR sensor as transducer","authors":"L. Ng, M. Zhang, Y.S. Ma, B. Liu","doi":"10.1109/APMRC.2009.4925370","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925370","url":null,"abstract":"Reduction of the magnetic spacing has lead to the possibility of near contact recording, otherwise known as surfing recording, achieved by using a TFC slider with pole tip in contact with the lubricant layer. The characterization of the lubricant and overcoat contact through the use of the readback signal is proposed.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"600 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123944630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of head-disk interaction and spacing based on readback signal 基于回读信号的磁碟相互作用和间距研究
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925389
Zhaohui Fan, Zhenyong Zhang, Huan Tang
{"title":"Study of head-disk interaction and spacing based on readback signal","authors":"Zhaohui Fan, Zhenyong Zhang, Huan Tang","doi":"10.1109/APMRC.2009.4925389","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925389","url":null,"abstract":"Based on amplitude modulation and frequency modulation analyses of the readback signal of a single-tone frequency pattern, the slider's down-track positional and fly height modulation amplitudes can be determined. We show that the slider's flying behavior undergoes through three distinct regimes as the fly height is decreased via thermal fly height control: stable flying at clearance, unstable flying or bouncing contact following the onset of touch-down, and stable sliding in the deep interference state. A minimum head-medium spacing and maximum recording performance are achieved in the deep interference state as a result of the lubricant being squeezed out of the head-disk contact.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130487327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Lubricant deformation analyses caused by gas stresses and surface tension 气体应力和表面张力引起的润滑油变形分析
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925381
F. Saeki, S. Fukui, H. Matsuoka
{"title":"Lubricant deformation analyses caused by gas stresses and surface tension","authors":"F. Saeki, S. Fukui, H. Matsuoka","doi":"10.1109/APMRC.2009.4925381","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925381","url":null,"abstract":"Three-dimensional lubricant deformations caused by applied stresses and surface tension distribution were studied through numerical analyses of the long-wave equation. Lubricant surface deformed corresponding to distributions of stresses and surface tension, involving secondary deformation due to mass conservation of fluid. Computations were conducted efficiently using ADI scheme.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"773 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126536032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics of a HDD spindle system due to the change of FDBs fdb变化对HDD主轴系统动力学的影响
2009 Asia-Pacific Magnetic Recording Conference Pub Date : 2009-05-15 DOI: 10.1109/APMRC.2009.4925396
G. Jang, K. Park
{"title":"Dynamics of a HDD spindle system due to the change of FDBs","authors":"G. Jang, K. Park","doi":"10.1109/APMRC.2009.4925396","DOIUrl":"https://doi.org/10.1109/APMRC.2009.4925396","url":null,"abstract":"This research investigates the effect of FDBs on the dynamics of a HDD spindle system. Flying height of the HDD spindle system is determined by using the static analysis of the FDBs, and the stiffness and damping coefficients are calculated by using the dynamic analysis of the FDBs. Free vibration characteristics and shock response of the HDD spindle system are analyzed by using the finite element method and the mode superposition method. Experimental modal test is also performed to verify the accuracy of the proposed method. This research shows that the stiffness coefficients of journal bearing mostly affect the rocking frequencies because their magnitudes are within the range of the stiffness of supporting structure. It also shows that the damping coefficients of thrust bearing mostly affect the axial frequency because the stiffness of thrust bearing is much smaller that that of supporting structure.","PeriodicalId":376463,"journal":{"name":"2009 Asia-Pacific Magnetic Recording Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126010821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信