W.Dai, V.Vyatkin, J.H.Christensen, V.N.Dubinin, "Bridging
Service-Oriented Architecture and IEC 61499 for Flexibility and
Interoperability," IEEE Transactions on Industrial Informatics,
Vol.11, No.3 (June 2015), pp.771-781.
T.Strasser, A.Zoitl, J.H.Christensen, C.Sünder, "Design and
Execution Issues in IEC 61499 Distributed Automation and Control
Systems," IEEE Transactions on Systems, Man, and Cybernetics,
Part C: Applications and reviews, January, 2011, pp.41-51.
S.A.Sierla, J.H.Christensen, K.O.Koskinen, J.P.Peltola,
"Educational Approaches for the Industrial Acceptance of IEC 61499,"
12th IEEE Conference on Emerging Technologies and Factory Automation
(ETFA 2007),
Patras, Greece, Sept 25-28,2007.
J.P.Peltola, J.H.Christensen, S.A.Sierla, K.O.Koskinen, "A
Migration Path to IEC 61499 for the Batch Process Industry," 5th IEEE
International Conference on Industrial Informatics (INDIN 2007),
Vienna, Austria, July 23-27, 2007.
C.Sünder, A.Zoitl, J.H.Christensen, M.Colla, T.Strasser,
"Execution Models for the IEC 61499 elements Composite Function Block
and Subapplication," 5th IEEE International Conference on Industrial
Informatics (INDIN
2007), Vienna, Austria, July 23-27, 2007.
C.Sünder, A.Zoitl, J.H.Christensen, V.Vyatkin, R.W.Brennan,
A.Valentini, L.Ferrarini, T.Strasser, J.L.Martinez-Lastra, F.Auinger,
"Usability and interoperability of IEC 61499 based distributed
automation systems," 4th International IEEE Conference on Industrial
Informatics (INDIN’06), Singapore, August 2006.
F.Auinger, R.Brennan, J.H.Christensen, J.L.Martinez-Lastra,
V.Vyatkin, "Requirements and solutions to software encapsulation and
engineering in next generation manufacturing systems: OOONEIDA
approach," International Journal of Computer Integrated
Manufacturing 18, 7 (October – November 2005), 572–585.
IEC 61499 Summer Course and Industry Day, Technical
University of Helsinki, June 2004(2005)(2006).
F.Auinger, T.Strasser, J.H.Christensen, "Using IEC 61499
Function Blocks (FBs) for Closed Loop Control Applications," International IMS Forum 2004,
Villa Erba, Cernobbio, IT, 17-19 May 2004.
R.W.Brennan, J.H.Christensen, J.L.Martinez Lastra, A.Martell,
V.Vyatkin, "OOONEIDA Community - a Prototype of an Open Object
Oriented Knowledge Economy for Intelligent Industrial Automation," International IMS Forum 2004,
Villa Erba, Cernobbio, IT, 17-19 May 2004.
M. Fletcher, E. Garcia-Herreros, J.H. Christensen, S.M. Deen,
R. Mittmann, An
Open Architecture for Holonic Cooperation and Autonomy, First
International Workshop on Industrial Applications of Holonic and
Multi-Agent Systems (HoloMAS'2000), Sept.8, 2000.
J.H.Christensen, Design
patterns for systems engineering in IEC 61499, Verteilte
Automatisierung - Modelle und Methoden für Entwurf,
Verifikation, Engineering und Instrumentierung (VA2000),
Otto-von-Guericke-Universität Magdeburg, Germany, 22-23 March
2000, ISBN 3-929757-30-3, 63-71.
J.H.Christensen, Basic
Concepts of IEC 61499, Verteilte Automatisierung - Modelle und
Methoden für Entwurf, Verifikation, Engineering und
Instrumentierung (VA2000), Otto-von-Guericke-Universität
Magdeburg, Germany, 22-23 March 2000, ISBN 3-929757-30-3, 55-62.
J.H.Christensen, "Fortifying PLCs," Motion Control 9,
5 (July-August 1999), ISA, RTP NC 27709 USA, 32-35.
J.H.Christensen, "The Future of IEC 61131-3," Industrial
Computing 18, 4 (March 1999), ISA, RTP NC 27709 USA, 20-23.
J.H.Christensen, M.Thouati and O.J.Struger, "Les Systemes
Holoniques," Terrain 7 (Jan-Mar 1996), CiMax, Nanterre,
France, 26-31.
J.H.Christensen, O.J.Struger, D.Norrie and C.Schaeffer,
Material Handling Requirements for Holonic Manufacturing Systems, Proc
2nd Intl Conf on Matl Handling Res, Material Handling Industry of
America, 1994.
J.H.Christensen, "The Application of International Standards
to Intelligent Manufacturing Systems," IECON '91 Proceedings,
IEEE, 1991, 67-70.
J.H.Christensen, "Graphic Programming Languages and
Environments for Manufacturing Applications," Symposium on
Manufacturing Application Languages, Winnipeg, June 1988.
J.H.Christensen, "Integrated Project Support Environment
Requirements for the IEC Languages," IEEE Workshop on Languages for
Automation, Vienna, August 1987.
J.H.Christensen and O.J.Struger, "Requirements for Control
System Life-Cycle Management," ISA/86, Houston, October 1986.
J.H.Christensen and O.J.Struger, "Programmable Controller
Software Architectures for Advanced Machine Diagnostics," 26th IEEE
Machine Tools Conference, Milwaukee, October 1983.
J.H.Christensen, "Requirements Analysis for Industrial
Control and Production Management Systems," Ninth Intl Purdue
Workshop on Ind Comp Sys, Oct 1981.
L.S.Lee and J.H.Christensen, "Linear Approximation in
Conjugate Gradient Methods for Process Optimization," J
Chinese Inst Chem Engrs 8, 93-100 (1977).
C.Anazia, C.O.Lee, R.C.Jerner, ---, and J.H.Peavey, "Solution
of Laue Back-Reflection Patterns of Sapphire Crystals Using a
Computer Technique," Metall Trans A, 6A (Sept 1975), 1751-3.
J.H.Christensen and H.B. Crichlow, "Data Acquisition and
Telemetry in a Natural Gas Measurements Laboratory," AIChE 67th
National Meeting, 1974.
J.H.Christensen (editor), Computer Programs for
Chemical Engineering, Vol. VI: Stagewise Operations, National
Academy of Engineering, 1973.
L.D.Clements, J.H.Christensen and K.E.Starling, "Nonlinear
Programming in Equation of State Development," Proc Okla Acad Sci,
1971.
J.H.Christensen and S.F.Yang, "An Improved Algorithm for
Chemical Process Optimization," Canadian Chemical Engineering
Conference, Montreal, 1971.
N.F.Carnahan and J.H.Christensen, "An Efficient Algorithm for
Pipeline Network Analysis," AIChE National Meeting, Houston, 1971.
W.H.Huang, R.J. Block, and J.H.Christensen, "A Computer
Technique for the Solution of Laue Back Reflection Patterns of Cubic
Crystals," Metall Trans 2 (May 1971), 1367-70
J.H.Christensen, "The Structuring of Process Optimization," AIChE
J 16, 2(March 1970), 177-84.
J.H.Christensen and D.F.Rudd, "Structuring of Design
Computations," AIChE J 15, 1(January 1969), 94-100.
W.Lee, J.H.Christensen and D.F.Rudd, "Design Variable
Selection to Simplify Process Calculations," AIChE J 12,
6(November 1966), 1104-10.
Patents
U.S. 3,951,644, "Producing Iron and Steel from Iron Ore"
European Patent Application No. 07012540.6-1238, "Automation
HMI visualization utilizing GUI function blocks," 26.06.07 (named
inventor with O.Hummer-Koppendorfer, F.Auinger, A.Zoitl,
T.I.Strasser, and K.H.Hall).
European Patent Application No. 07012541.4-2224, "HMI
framework for extensible automation system engineering platforms,"
26.06.07 (named inventor with J.Gottwald, F.Auinger, A.Zoitl,
T.I.Strasser, I.Terzic and K.H.Hall).