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division of Ag

 

Department of Biological & Agricultural Engineering
203 Engineering Hall
1 University of Arkasnsas
Fayetteville, AR 72701
Phone: (479) 575-2352 
Fax: (479) 575-2846

Griffis, Carl L.

Griffis, Carl L.

Dr. Carl L. Griffis

Professor Emeritus
Biological and Agricultural Engineering

Office: ENGR 221
Phone: (479) 575-2848
E-mail: clg@uark.edu


Education

  • B.S., Chemical Engineering, University of Arkansas
  • M.S., Chemical Engineering, University of Arkansas
  • Ph.D., Engineering, University of Arkansas

Teaching and Research

  • Engineering Design Fundamentals I
  • Engineering Design Fundamentals II
  • Electronic Applications in Biological Systems
  • Senior Biological Engineering Design I
  • Senior Biological Engineering Design II
  • Advanced Electronic Instrumentation
  • Thermal processing of food products
  • Rice quality

 

COURSES OFFERED:

 

  • BENG 1012 Engineering Design Fundamentals I
  • BENG 1022 Engineering Design Fundamentals II
  • BAEG 2103 Electronic Applications in Biological Systems
  • BENG 4104: Electronic Instrumentation in Biological Systems
  • BENG 4903: Soil and Water Resource Engineering
  • BENG 4813: Senior Design I
  • BENG 4822: Senior Design II
  • BENG 5103: Advanced Electronic Instrumentation

Biographical Information

 

MEMBERSHIPS IN PROFESSIONAL SOCIETIES:

  • American Society of Agricultural and Biological Engineering
  • American Society for Engineering Education
  • Registered Professional Engineer in Arkansas
  • Institute of Biological Engineering

MEMBERSHIPS IN HONORARY ORGANIZATIONS:

  • Tau Beta Pi
  • Gamma Sigma Delta

AWARDS AND HONORS:

  • Imhoff Outstanding Teacher Award, College of Engineering, 2006
  • John W. White Award for Outstanding Teaching, 2003
  • Outstanding Teaching Award, Gamma Sigma Delta, 2002
  • Outstanding Teaching Award Biological and Agricultural Engineering Dept. 2001
  • Outstanding Teaching Award Biological and Agricultural Engineering Dept. 1999
  • Halliburton Outstanding Teaching Award, 1991
  • Halliburton Outstanding Teaching Award, 1989
  • John W. White Award for Outstanding Teaching, 1987
  • Teaching Award of Merit, National Association of Colleges and Teachers of Agriculture
  • Halliburton Outstanding Teaching Award, 1983
  • Halliburton Outstanding Research Award, 1982

PUBLIC SERVICE ACTIVITIES:

  • President of Gamma Sigma Delta, Arkansas Section, 2004
  • Ad Hoc Reviewer for USDA's Small Business Innovation Program, 1990 to present

GRANT ACTIVITIES:

  • Industry Grants for the Study of Antimicrobials in Ready-to-Eat Products, 2007, $25,000
  • Automated Non-Destructive Machine-Vision System for Inspection of Rough Rice, Arkansas Rice Research and Promotion Board, 2006, $73,290
  • Food Safety in Poultry Processing, US/USDA/CSRS/Food Safety/GRIFFIS, 2002, $32,000.00
  • Food Safety in Poultry Processing, US/USDA/CSRS/Food Safety/GRIFFIS, 2001, $36,000.00
  • Food Safety in Poultry Processing, US/USDA/CSRS/Food Safety/GRIFFIS, 2000, $38,000.00
  • Food Safety in Poultry Processing, US/USDA/CSRS/Food Safety/GRIFFIS, 1999, $36,000.00
  • Detection of Bone Fragments in Poultry Meat, 1998, USDA, $120,000
  • X-ray Absorption Compensation…Bone Fragment, 1998, US Poultry and Egg, $40,000

Selected Publications

 REFERRED JOURNAL ARTICLES

1.   Carl L. Griffis, Thomas A. Costello, and Lalit R. Verma. 2007. A Unified, Interactive Approach to Degree Programme Accreditation and Quality Assurance. Int J. Engng Ed. Vol. 00, No. 0 pp. 1-5 2007

2.   Elizabeth Martin, Osaili, Tareq; Griffis, Carl; Beard, Brandon; Keener, Abby; Marcy, John. 2007. Thermal Inactivation Studies (D and z values) of Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes in Formulated Ready-to Eat, Breaded Pork Patties. 2007. Journal of Food Science. Vol 72, Issue 2, pp 433-9

3.   TAREQ M. OSAILI, CARL L. GRIFFIS, ELIZABETH M.MARTIN, EDWARD E. GBUR, AND JOHN A. MARCY. 2006. Modeling Cooking Time to Inactivate Salmonella in Chicken Leg Quarters Cooked in an Air–Steam Impingement Oven. Journal of Food Science, Vol 71:5. pp 146-149

4.   T. OSAILI, C. L. GRIFFIS, E. M. MARTIN, B. L. BEARD, A. KEENER, AND J. A. MARCY. 2006. Thermal Inactivation Studies of Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes in Ready-to-Eat Chicken-Fried Beef Patties. Journal of Food Protection, Vol. 69, No. 5, 2006, Pages 1080–1086

5.   C. A. O’Bryan, P. G. Crandall, E. M. Martin, C. L. Griffis, M. G. Johnson. 2006. Heat resistance of Salmonella spp., Listeria monocytogenes, Escherichia coli 0157:H7, and Listeria innocua M1, a potential surrogate for Listeria monocytogenes, in meat and poultry: a review. Journal of Food Science. pp. R23-30

6.   Tao, Y., Z. Chen, and C. L. Griffis. 2004. Chick feather pattern recognition. IEEE Proc.-Vis. Image Signal Process., Vol. 151, No. 5, October, 2004

7.    Yang, Liju, Yanbin Li, Carl L. Griffis, Michael G. Johnson. 2003. Interdigitated Microelectrode (IME) Impedance Sensor for the Detection of Viable Salmonella Typhimurium. Biosensors & Bioelectronics. 19 (2004) 1139-1147

8.    Madhukar Varshney, Yanbin Li, Rama Nanapanneni, Michael G. Johnson, and Carl. L. Griffis. 2003.
A chemiluminescence biosensor coupled with Immunomagnetc separation for rapid detection of Salmonella Typhimurium. Journal of Rapid Methods and Automation in Microbiology. 11( 2): 111-131

9.    Wallace, S., Carrier, D.J., Beitle, R., Clausen, E. and Griffis, C. (2003). HPLC-UV and LC-MS-MS characterization of silymarin in milk thistle seeds and corresponding products. Journal of Nutraceutical, Functional and Medicinal Food 4(2): 37-48.

10.   Yang, H., Y. Li, C. Griffis and A. Waldroup. 2002. A probability model for cross-contamination by Campylobacter jejuni and Salmonella Typhimurium in poultry chilling process. Applied Engineering in Agriculture 18(6):717-724.

11.   Trujillo, Omar, Carl Griffis, Yanbin Li, and Michael Slavik. 2001. A machine vision system using immuno-fluorescence microscopy for rapid recognition of Salmonella typhimurium. Journal of Rapid Methods and Automation in Microbiology  9(2):115-134

12.   Chen, Zikuan, Carl L. Griffis, Yang Tao, and Xin Chen. 2001. A wavelet-based adaptive threshholding method for image segmentation. Optical Engineering 40(5) 868-874

13.   Ma, Li, Zhongping Yang, Yanbin Li, and Carl Griffis. 2000. Microbial, chemical and physical changes in chill water treated with electrochemical method. Journal of Food Process Engineering 23(2000) 57-72

14.   Wolfe, Rodney E., Carl L. Griffis, Y. Li, M.F. Slavik*, J.T. Walker. 1999. Effect of electrical treatment on salmonella typhimurium in poultry scalder water using a flow-through treatment system. Applied Engineering in Agriculture 15(5): 535-537

15.   Ibarra, Juan G., Yang Tao, Joel Walker, and Carl L. Griffis. 1999. Internal temperature of cooked chicken meat through infrared imaging and time series analysis. TRANS of the ASAE. 42(5):1383-1390

16.   Li, Yanbin, T. J. Siebenmorgen, C. L. Griffis, R. E. Wolfe, R. L. Dake, J. E. Webb. 1994. Tenderness and its variation in broiler breast meat harvested from electrically stimulated carcasses. TRANS of the ASAE 37(1):223-225

17.   Walker, Joel T. and Carl L. Griffis. 1994. Effects of Electrical Stimulation on Feather Pulling Force.  Trans of the ASAE  Vol. 37(2): 541-544

18.   Griffis, C. L., Michael Slavik, Yanbin Li, and Phillip Engler.  U.S. Patent Number 5,282,940. February 1, 1994

19.   Slavik, M., Carl L. Griffis, Rodney Wolfe, Yanbin Li., Phillip Engler. 1993. Effect of electrical treatment on Giardia lamblia. Applied Engineering in Agriculture. Vol. 9, No 5, pp. 461-4, September, 1993

20.   Li, Y., M. F. Slavik, C. L. Griffis, J. T. Walker, J.W. Kim, and R. E. Wolfe. 1994. Destruction of salmonella in poultry chiller water using electrical stimulation. Trans of the ASAE 37(1): 211-215

21.   Li, Y., J. W. Kim, M. F. Slavik, C. L. Griffis, J. T. Walker, and H. Wang. 1994 salmonella typhimurium attached to chicken skin reduced using electrical stimulation and inorganic salts. Journal of Food Science. Vol. 59, no 1, pp23-25,29

22.   Kim, Jeong-Weon, Michael F. Slavik, Carl L. Griffis, and Joel T. Walker. 1993. Attachment of Salmonella typhimurium to skins of chicken scalded at various temperatures. Journal of Food Protection, Vol. 56, No. 8, pp. 661-665, 671, Aug 1993

23.   Li, Yanbin, T. J. Siebenmorgen, and C. L. Griffis. 1993. Electrical Stimulation in Poultry: A Review and Evaluation. Poultry Science, 72:7-22

24.   Classen, J., T. J. Siebenmorgen, C. L. Griffis, J. C. Young. 1992. Processing Energy Requirements for Several Vegetables. Transactions of the ASAE. 35(3): May-June 1992, pp. 973-4

25.    Li, Yanbin, C. L. Griffis, M.F. Slavik, P. V. Engler, and R. E. Wolfe. 1991. Effects of current, frequency, and duty cycle on killing of Salmonellae in saline water using electrical signals. Applied Engineering in  Agriculture Vol. 7, No. 6, pp. 705-710

26.   Slavik, M.F., C. L. Griffis, Y. Li, and P. Engler. 1991. Effects of electrical stimulation on bacterial contamination of chicken legs. J. Food Protection. 54:508-513

27.   Gunsaulis, F.R., M. F. Kocher, and C. L. Griffis. 1991. Surface structure effects on close-range reflectance as a function of soil organic matter content. TRANS of the ASAE(Vol. 34, No. 2, pp. 641-649, 1991)

28.   Classen, J.J., T.J. Siebenmorgen, C. L. Griffis, and J.C. Young. 1991. Anaerobic digestion of hominy waste. TRANS of the ASAE. (Vol.34 No. 3, pp. 937-943, 1991)

29.   Aleman, Guadalupe T., Griffis, Carl L., The influence of head control and variable pressure on uniform distribution in pressure distribution systems for on-site waste treatment. Applied Engineering in Agriculture, Vol. 5, No. 1, pp. 62-68, 1989

30.   Shoemaker, D. K., Griffis, C. L., and Rutledge, E. M., A mathematical study of time to failure for individual septic systems in soils having seasonal water tables. Applied Engineering in Agriculture. Vol. 4, No. 2, pp. 142-148, 1988

31.   Shoemaker, D.K., C. L. Griffis, D. T. Mitchell, J.W. House and E.M. Rutledge.  1987.  "A Mathematical Model to Predict Orifice Plugging in a Low-Pressure Distribution System."  Proceedings of the Fifth National Symposium on Individual and Small Community Sewage Systems.  Chicago, Illinois.  December.

32.   Earlywine, E., M. Jones, D.K. Shoemaker and C. L. Griffis.  1987. "Experimental Groundwater Drawdown Using a Curtain Drain in a Henry Soil in Jefferson County, Arkansas."  Proceedings of the Fifth National Symposium on Individual and Small Community Sewage Systems. Chicago, Illinois.  December.

33.   Rutledge, E.M., C. L. Griffis, C.R. Mote, C. Bell, D.K. Shoemaker and N. Glover.  1987.  "Climate as a Factor in Siting Septic Tank Filter Fields."  Fifth National Symposium on Individual and Small Community Sewage Systems.  Chicago, Illinois. December.

34.   Mote, C.R., and C. L. Griffis.  1986.  "On-Site Domestic Wastewater Renovation System Designs to Overcome Soil Limitations." Proceedings of a Workshop on Utilization, Treatment, and Disposal of Waste on Land.  Soil Science Society of America, American Society of Agricultural Engineers, Soil Conservation Society of American, pp. 129-138.

35.   Mote, C.R., C. L. Griffis, J.W. Pote, D.K. Shoemaker, E.M. Rutledge and M.D. Harper.  1986.  "Seepage Trench Performance in a Filter Field with Serial Distribution."  Arkansas Agricultural Experiment Station Report Series 304.  November.

36.   Griffis, C. L.  1985.  "Electronic Sensing of Soil Organic Matter." TRANS of the ASAE, Vol. 28, No. 3, pp. 703-705.

37.   Griffis, C. L.  1982.  "Electronic Sensing of Soil Organic Matter." Arkansas Agricultural Experiment Station Report Series 277.

38.   Griffis, C. L., and C.R. Mote.  1982.  "A Method of Measuring the Rate at Which Heat is Generated by the  Aerobic Composting of Wastes."  Arkansas Agricultural Experiment Station Report Series 275.

39.   Griffis, C. L., and C.R. MOTE.  1982.  "A Bench-Scale System for Laboratory Studies of Composting Agricultural Waste." Arkansas Agricultural Experiment Station Report  Series 270.

40.   Griffis, C. L., D.W. Ritter and E.J. Matthews.  1983.  "Simulation of Rotary Spreader Distribution Patterns."  TRANS of the ASAE, Vol. 26, No. 1, pp. 33-37.

41.   Mote, C.R., and C. L. Griffis.  1982.  "Heat Production by Composting Organic Matter."  Agricultural Wastes 4(1982) 65-73.

42.   Rokeby, T.R.C., C. L. Griffis, G.S. Nelson, J.M. Redfern and G.C. Harris, Jr.  1981.  "A Gas Assisted Solar Heating System for Commercial Chicken Brooding." TRANS of the ASAE, Vol. 24, No. 1, pp. 182-186.

43.   Mote, C.R., and C. L. Griffis.  1980.  "Variations in the Composting Process for Different Organic Carbon Sources." Agricultural Wastes, Vol. 2, No. 3, pp. 215-223.

44.   Griffis, C. L., C.R. Mote and E. Kienholz.  1980.  "Methane Production from Agricultural Wastes."  Arkansas Agricultural Experiment Station Special Report 89.

45.    Mote, C.R., and C. L. Griffis.  1980.  "Water Management for Sustaining the Composting Process in Windrows of Cotton Gin Trash."  Arkansas Agricultural Experiment Station Report Series 256.

46.   Mote, C.R., and C. L. Griffis.  1979.  "A System for Studying the Composting Process."  Agricultural Wastes, Vol. 1, No. 3, pp. 191-203.

47.   Scott, H. D., C. L. Griffis, D.W. Brewer and L.R. Oliver.  1978. "Simulation of Plant Competition."  TRANS of the ASAE, Vol. 21, No. 5, pp. 813-821.

48.   Gilmour, J. T., J. A. Ferguson, C. L. Griffis and K. S. Shirk.  1977. "Evaluation of the Linear Segment Method for Predicting Electrical Conductivity from Solution Composition Data." Soil Science 123(3): 182-7.

49.   Griffis, C. L.  1976.  "Artificial Recharge in the Grand Prairie, Arkansas."  Arkansas Agricultural Experiment Station Bulletin 810.

50.   Scott, H. D., C. L. Griffis and L.R. Oliver.  1975.  "Simulation of Plant Competition."  Weed Science Journal 89(2):45-7.

51.   Griffis, C. L.  1972. "Groundwater-Surface Water Integration Study in the Grand Prairie of Arkansas."  Joint Publication of the Arkansas Agricultural Experiment Station and the Arkansas Water Resources Research Center, Publication No. 11.

52.   Griffis, C. L.  1972.  "Modelling a Groundwater Aquifer in the Grand Prairie of Arkansas."  TRANS of the ASAE, Vol. 15, No. 2, pp. 261-263.

RESEARCH PAPERS

1.        Verma, L.R. and C.E. Griffis. 2004. "Evolution of the Biological Engineering Curriculum
at the University of Arkansas." Invited Presentation in the “Development of Agricultural and Biological Engineering Curriculum” session, at the ASAE/CSAE Annual International Meeting, Ottawa, Canada


2.        Carrier, D. J., and Carl L. Griffis. 2003. Being a Freshman at the University of Arkansas. Presented at the International Meeting of ASEE, Nashville,  July, 2003

3.        Matlock, M. and Carl L. Griffis. 2003. The Engineering Design Studio Approach: Phase 1. Presented at the International Meeting of ASEE, Nashville,  July, 2003

4.        Costello, Thomas A., Carl L. Griffis, and Lalit Verma. 2002. A Computer-Based Interactive Package for ABET Self-Study. Presented at the International Meeting of ASEE, Montreal,  July, 2002

5.        Trujillo, Omar, C. L. Griffis, Y. Li, M. F. Slavik. 2002. A machine vision system using immuno-fluorescence microscopy for rapid recognition of Salmonella typhimurium. Presented at the International Meeting of ASAE, Chicago July 2002

6.       Griffis, C. L., and Lalit Verma. 2001. Criteria 2000: The long view. Presented at the International ASAE meeting in Sacramento, July 2001.

7.        Li, Yanbin, Carl L. Griffis, and Michael F. Slavik. 2000. Electrical Pasteurization System for Brine Chillers. Final report to ALKAR and the Institute of Food Science and Engineering. University of Arkansas

8.        Li, Y., H. Yang, H. K. Kim, Q. Wang, M. F. Slavik, C. L. Griffis. 1999. An electrochemical method for destruction of Listeria monocytogenes in brine chilling water. Paper 99-6034 Presented at the 1999 Annual International Meeting of ASAE, Toronto, Canada

9.        Scott, H.D., Carl L. Griffis, and T.S. Udouj. 1998. Spatial relationships between
contamination of irrigation wells and natural resources characteristics. Proceedings of the 1998 International Water Resources Engineering Conference. Memphis, TN


10.     Trujillo, O., Slavik, M.F., Li, Y., Tao,Y., Griffis, C. and Ji,M. (1998) An Autoregressive Modeling Technique for Automated Recognition of Bacteria in Chicken Carcass Wash Water. 1998 Proceedings of the Food Safety Consortium: Annual Meeting, October 4-6, Kansas City, MO.

11.     Kim, J. W., M.F. Slavik, C. L. Griffis, and J. T. Walker. 1993. Attachment of Salmonella typhimurium and Campylobacter jejuni to skins of chicken scalded at various temperatures. Poster presentation in 80th International Association of Milk, Food, and Environmental Sanitarians Annual Meeting, Atlanta, GA

12.     Kim, J. W., M. F. Slavik, C. L. Griffis, and J. T. Walker. 1993. Attachment of Salmonella typhimurium and Campylobacter jejuni to skins of chicken scalded at various temperatures. Proceedings of the 1993 International Conference for Advancement of Science and Technology.  Korea

13.     Li, Yanbin, Carl L. Griffis, J. T. Walker, M. F. Slavik, J. W. Kim, and H. Wang. Electrical Treatment of Chicken Skin to Reduce Salmonella Contamination in Poultry Processing. ASAE Paper No. 936063 presented at the 1993 International Summer Meeting of ASAE Spokane, Washington, June 1993.

14.     Li, Yanbin, Carl L. Griffis, Michael F. Slavik, Phillip V. Engler, and R. E. Wolfe. Effects of Electrical Parameters on Killing of Salmonella in Processing Water Using Electrical Stimulation. Paper No. 916001 presented at the 1991 International Summer Meeting of ASAE.  Albuquerque, NM, June 23-26, 1991

15.     Li, Yanbin, T. J. Siebenmorgen, and Carl L. Griffis. Electrical Stimulation in Poultry Processing: A Review. Paper No. 916002 presented at the 1991 International Summer Meeting of ASAE.  Albuquerque, NM, June 23-26, 1991

16.     Griffis, C. L., T.J. Siebenmorgen, J. T. Walker, R.L. Dake, J.E. Webb, and R. E. Wolfe. 1991. Effects of electrical stimulation with precisely controlled square wave voltages on texture of broiler pectoralis muscles. Arkansas Farm Research 40(1):5

17.     Wolfe, R. E., C. L. Griffis, M.F. SLAVIK, Y. Li., and P. Engler. 1991. Control of Salmonella in poultry processing through low-voltage, low-current electrical signals. Arkansas Farm Research 40(2):4

18.     Griffis, M.F. Slavik, P. V. Engler, and R. E. Wolfe. 1991. Effects of electrical parameters on killing salmonellae in processing water using electrical stimulation. ASAE Paper No. 916001, Albuquerque, June, 1991

19.     Siebenmorgen, T. J., C. L. Griffis, A. Mauromoustakos, R. Dake, and J.E. Webb. 1991. Variation in shear values of electrically stimulated broiler breast meat.  ASAE Paper No. 916539, Chicago, December, 1991

20.     Li, Yanbin, M. F. Slavik, C. L. Griffis, and R. E. Wolfe. 1991. Effects of electrolytes on killing salmonellae in a solution using electrical stimulation. ASAE Paper No. 916550, Chicago, December, 1991

21.     Griffis, C. L., and M.F. Slavik. 1991. Advances in the use of low-voltage, low- current electrical signals to control Salmonellae in poultry processing. Presentation at the annual meeting of the three-state consortium on food safety. Kansas City, November, 1991

22.     Li, Yanbin, C. L. Griffis, M.F. Slavik, P. V. Engler, R. E. Wolfe, and M. Li. Effects of current, frequency, and duty cycle on killing of Salmonella in saline solutions using electrical signals. Paper presented at the 71st Annual Meeting of the Conference of Research Workers in Animal Disease, November 5-6, 1990

23.     Classen, John J., Terence J. Siebenmorgen, Carl L. Griffis, and James C. Young. 1990. "Anaerobic Digestion of Hominy Waste", Paper presented at the International Winter Meeting of ASAE, Chicago, December 14, 1990

24.     Griffis, Carl L., Terence J. Siebenmorgen, Joel T Walker, Yanbin Li, and Michael F. Slavik. 1990. "Effects of Electrical Stimulation on Poultry Tenderness and Microbial Contamination", Paper 90-6044 presented at the International Summer Meeting of ASAE, Columbus, Ohio, June 24-27, 1990

25.     Kocher, M. F., and C. L. Griffis. 1989. "Laboratory Performance of a Sampler for On-The-Go In-Situ Soil Carbon Content Measurement", Paper 891008 presented at the International Summer Meeting of ASAE, Quebec, PQ, Canada, June 25-28, 1989

26.     Gunsaulis, Floyd R., Michael F. Kocher, and Carl L. Griffis. 1989. "Eliminating Surface Structure Effects on Low-Organic-Matter Soil Reflectance", Paper 89-1567 Presented at the International Winter Meeting of ASAE, New Orleans, December 12-15, 1989

27.     Shoemaker, D. K., and C. L. Griffis. 1987. "The Joy of Computer Aided Instruction", paper presented at the winter meeting of ASAE, Chicago, December 14-16

28.     Shoemaker, D.K., C. L. Griffis and E.M. Rutledge.  1986.  "A Mathematical Study of Storage Above a Seasonal Water Table In Saturated Soil."  Paper presented at the Summer Meeting of ASAE, San Luis Obispo, California.  July.

29.     Aleman, G.T., and C. L. Griffis.  1986.  "Effects of Variable Pressure on Low-Pressure Distribution Systems."  Paper presented at the Summer Meeting of ASAE, San Luis Obispo, California.  July.

30.     Pitts, D. J., T.R.C. Rokeby and C. L. Griffis.  1982.  "A Computer Simulation of a Multi-Stage Solar Air Heater."  Paper No. 82-4038, presented at the Summer National Meeting of ASAE.

31.     Rokeby, T.R.C., C. L. Griffis, D. J. Pitts and J.M. Redfern.  1980. "Performance of a Large Rock Bin Storage System for Solar Heating of a Broiler House", Paper presented at the 1980 Winter meeting of ASAE, Chicago

32.     Ritter, D.W., C. L. Griffis and E.J. Matthews.  1980.  "Computer Simulation of Rotary Spreader Distribution Patterns."  Paper presented at the National Meeting of ASAE, Chicago.

33.     Rokeby, T.R.C., C. L. Griffis, J.M. Redfern and G.C. Harris.  1979. "A Solar Heating System for Commercial Chicken Brooding." Paper II-2a-2, presented at the International Congress of Agricultural Engineering, Michigan State University.

34.     Sinha, S.R., E.J. Matthews and C. L. Griffis.  1979.  "Herbicide Application in Relation to Soil Organic Matter by Remote Sensing."  Paper 79-1507, presented at the National Meeting of ASAE, New Orleans.

35.     Rokeby, T.R.C., G.S. Nelson, C. L. Griffis and G.C. Harris, Jr. 1978.  "A Solar Heating System for Commercial Poultry Production."  Paper 3C-1, presented at the 1978 Annual Meeting of the International Solar Energy Society, Denver, Colorado.

36.     Griffis, C. L., and C.R. Mote.  1979.  "Measuring the Heat Generated in Composting."  Arkansas Farm Research. Vol. 28, No 2

37.     Griffis, C. L., and C.R. Mote.  1978.  "Weed Seed Viability as Affected by the Composting of Cotton Gin Trash."  Arkansas Farm Research Vol. 27, No 3.

38.     Mote, C.R., and C. L. Griffis.  1978.  "Changes Occurring in Cotton Gin Trash During the Windrow Composting Process."  Arkansas Farm Research Vol. 27, No 4. 

39.     Estes, R. D., C.R. Mote and C. L. Griffis.  1977.  "Laboratory Size Composting Unit for Agricultural Waste Materials."  Arkansas Farm Research, Vol. 26, No. 2.

40.     Mote, C.R., and C. L. Griffis.  1977.  "Dilute Acid Soluble Carbon as a Measure of Available Carbon in the Composting Process." Arkansas Farm Research, Vol. 26, No. 3.

41.     Griffis, C. L., and C.R. Mote.  1977.  "Development of the Bench Scale Composter."  Arkansas Farm Research, Vol. 26, No. 4.

42.     Griffis, C. L., and H. D. Scott.  1976.  "A Low-Cost Fraction Sampler for Laboratory Use."  Arkansas Farm Research, Vol. 25, No. 1 .

43.     Griffis, C. L.  1976.  "Groundwater Supplies in the Grand Prairie, Arkansas."  The first Mid-South Irrigation Seminar, Little Rock.

44.     Ferguson, J. A., J. T. Gilmour and C. L. Griffis.  1975.  "A Water Management Model for Predicting Carbonate Accumulation in Rice Soils."  Arkansas Farm Research Vol. 24, No. 2.

45.     Ferguson, J. A., J. T. Gilmour and C. L. Griffis.  1974.  "Distribution Patterns of Ca and Mg in Flooded Rice Fields." Proceedings of the Fifteenth Annual Rice Technical Working Group Meeting, Fayetteville, Arkansas.

46.     Ferguson, J. A., J. T. Gilmour and C. L. Griffis.  1973.  "Distribution Patterns of Ca and Mg Precipitates in Flooded Rice Fields."  Arkansas Farm Research, Vol. 22, No. 2.

47.     Smith, C. S., and C. L. Griffis.  1973.  "Filter Media for Artificial Recharge Wells in the Grand Prairie, Arkansas." Paper presented at International Winter meeting of ASAE, Chicago.

48.     Turpin, J.L., and C. L. Griffis.  1972.  "Movement of Artificially Recharged Water in the Grand Prairie's Quaternary Aquifer." Arkansas Farm Research, Vol. 21, No. 4, p. 9.

49.     Griffis, C. L.  1972.  "Potential Benefits of Water Management in the Grand Prairie of Arkansas."  Paper presented at International Summer meeting of ASAE, Hot Springs, Arkansas.

50.     Griffis, C. L.  1972.  "Possible Filter Media for Use in Artificial Recharge Wells in Arkansas."  Arkansas Farm Research, Vol. 21, No. 4.

51.     Griffis, C. L.  1971.  "Desirability of Artificial Recharge in the Grand Prairie Region."  Arkansas Farm Research, Vol. 20, No. 2.

52.     Griffis, C. L.  1971.  "Potential of Better Management of Water in the Grand Prairie."  Arkansas Farm Research, Vol. 20, No. 3.