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Author: james yen

Displaying records 21 to 30 of 42 records.
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21. Calcium Phosphate Cement With Non-Rigidity and Strength Durability for Periodontal Bone Repair
Published: 8/1/2006
Authors: Hockin D. Xu, Shozo Takagi, Limin Sun, L A Hussain, Laurence Chung Lung Chow, William F Guthrie, James H Yen
Abstract: Background. The need for biomaterials to treat periodontal osseous defects has increased as the world population ages. The objective of the present study was to develop a self-hardening, resorbable, and mech/anically strong calcium phosphate cement ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852519

22. Preparation and Characterization of a Suite of Ephedra-Containing Standard Reference Materials
Published: 6/1/2006
Authors: Katherine E Sharpless, D L Anderson, J. M. Betz, Therese A. Butler, S. G. Capar, J. Cheng, C. Fraser, M. L. Gay, G. Gardner, D W Howell, T. Ihara, J. W. Lam, Stephen E Long, M. McCooeye, Elizabeth A Mackey, W. R. Mindak, S. Mitvalsky, Karen E Murphy, Karen W Phinney, A. NguyenPho, Barbara J. Porter, M. C. Roman, Lane C Sander, Mary B Satterfield, C. Scriver, R. E. Sturgeon, Jeanice M Brown Thomas, Robert D Vocke Jr, Stephen A Wise, Laura J Wood, L. Yang, James H Yen, G. C. Ziobro
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902818

23. Determination of Ephedrine Alkaloids in Dietary Supplement Standard Reference Materials
Published: 11/1/2005
Authors: Lane C Sander, Katherine E Sharpless, Mary B Satterfield, T. Ihara, Karen W Phinney, Barbara J. Porter, James H Yen, Stephen A Wise, M. L. Gay, J. W. Lam, M. McCooeye, G. Gardner, C. Fraser, R. Sturgeon, M. C. Roman
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904509

24. Physical Properties of Composite Bone Grafts Consisting of Calcium Phosphate Cement and Chondroitin Sulfate (Poster)
Published: 4/1/2005
Authors: Francis W Wang, S Hirayama, James H Yen, Shozo Takagi
Abstract: Calcium phosphate cement (CPC), consisting of tetracalcium phosphate (TTCP) and dicalcium phosphate anhydrous (DCPA), sets by reacting with water to form hydroxyapatite (HA). Aqueous polymer solutions also have been used with CPC powder to form comp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852441

25. Sliding Mode Control for Active Vibration Isolation of a Long Range Scanning Tunneling Microscope
Published: 10/29/2004
Authors: K J Lan, James H Yen, John A Kramar
Abstract: An active vibration isolation (AVI) system has been designed and implemented for the Molecular Measuring Machine (M3) at the National Institute of Standards and Technology (NIST). NIST is investigating active vibration isolation as an approach to imp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822380

26. Improving the Usability and Accessibility of Voting Systems and Products
Series: Special Publication (NIST SP)
Report Number: 500-256
Published: 5/7/2004
Authors: Sharon J Laskowski, James H Yen, Marguerite W. Autry, J Cuginin, William H. Killam
Abstract: The goal of this report is to describe how research and best practices from the human factors, human-machine and human-computer interaction, and usability engineering disciplines can be brought to bear to improve the usability and accessibility of vo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906168

27. Improving the Usability and Accessibility of Voting Systems and Products
Series: Special Publication (NIST SP)
Report Number: 500-56
Published: 4/1/2004
Authors: Sharon J Laskowski, James H Yen, M Autry, John V Cugini, W Killam
Abstract: In the Help America Vote Act (HAVA) of 2002, Public Law 107-252, the Election Assistance Commission, in consultation with the National Institute of Standards and Technology, is mandated to submit a report on human factors, usability, and accessibili ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150478

28. Multimodal Biometrics: Issues in Design and Testing
Published: 11/1/2003
Authors: Robert D Snelick, Michael D Indovina, James H Yen, Alan Mink
Abstract: The results of experimental studies on multimodal biometric systems for small-scale populations have shown better performance compared to single-mode biometric systems. We examine if such techniques scale to larger populations, introduce a methodolog ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151577

29. Value Assignment of Nutrient and Aflatoxin Concentrations in Standard Reference Material 2387 Peanut Butter
Published: 10/3/2003
Authors: Katherine E Sharpless, C. S. Phinney, Laura J Wood, James H Yen, D W Howell
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903399

30. Value Assignment of Nutrient Concentrations in Standard Reference Material 2384 Baking Chocolate
Published: 10/25/2002
Authors: Katherine E Sharpless, Jeanice M Brown Thomas, Bryant C Nelson, C. S. Phinney, John R Sieber, Laura J Wood, James H Yen, D W Howell
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903398