Digital Commons Network^™

Qualitative And Quantitative Methods Of Automation Equipment Investment, Charles S. Knode

Theses and Dissertations

No abstract provided.

Uncertainty In Capital Investment Analysis, Kenneth Krock

Theses and Dissertations

No abstract provided.

The Effect Of Alternate Year Rest Rotation Grazing On Carbohydrate And Nitrogen Reserves In Crested Wheatgrass, James B. Wood

Theses and Dissertations

A field and laboratory study was made to determine the effect of alternate year rest rotation grazin in stem bases and root crowns of crested wheatgrass. Analyses for carbohydrate reserves and total nitrogen were made for the following treatments: (1) exclosures; (2) open range; (3) agronomy cages. Both carbohydrate concentration and total nitrogen content showed differences between sampling dates but did not show differences as a result of grazing treatment on individual dates. Differences between sampling dates were associated with season and growth stage of plants. Although differences due to grazing teatment were not shown for individual dates the combined …

Separation Of Scandium And Calcium By Liquid-Liquid Extraction Using Tri-N-Butyl Phosphate As Solvent, Kavasseri P. Radhakrishnan

Theses and Dissertations

Equilibrium data have been obtained for the systems Ca(N03)2- HNO3- TBP- H20 and Sc(N03)3- Ca(N03)2- HNO3- TBP- H20 over a wide range of concentration of the metal nitrates in the aqueous solution. Equilibrium acid concentration was used as a parameter for the equilibrium curves.

For the system Sc(N03)3- Ca(NO3)2- HNO3- TBP- H20 the distribution coefficients of scandium and calcium decreased with increasing acidity of the aqueous phase. The distribution coefficient of scandium was largely dependent on the calcium concentration in the aqueous phase rather than the scandium concentration as a result of the salting-out effect of calcium nitrate.

The separation …

A Preliminary Study Of The Effects Of Temperature And Coal Source In Efficiency Of Electrostatic Precipitation Of Fly Ash From Western Coals, Stanley John Selle

Theses and Dissertations

The investigation was the first phase of a program to develop a pilot electrostatic precipitator test facility. The facility was to study the effects of various operating conditions on precipitator collection efficiency for fly ash from western coals.

A plate-type pilot electrostatic precipitator was built and modified to increase its applicability to the problems studied.

Results of tests9 run to determine the effect of temperature on collection efficiency for fly ash from a single sources indicated the existence of an optimum operating temperature. Test results also showed that the coal and fly ash composition have an effect on precipitator collection …

Ecological Factors Affecting Lateral Distribution Of Goldeye Hiodon Alosoides (Rafinesque), In The Little Missouri Arm, Lake Sakakawea, North Dakota, Stanley I. Johannes

Theses and Dissertations

The lateral distribution of goldeye, Hiodon alosoides (Rafinesque) in Little Missouri Arm, Lake Sakakawea, North Dakota, was investigated during 1967 and 1968. This species, which is of commercial importance in Canada, is present in great abundance in Lake Sakakawea, yet is not commercially exploited in that body of water.

Experimental gill nets were fished from the surface at eight locations along the Little Missouri Arm to detect differences in goldeye populations along the length of the arm. A total of 7,191 fish were taken of which 6,536 or 90.80% were goldeye. Mesh selectivity data was recorded; 1 1/4 inch mesh …

Conflicting Opinions Concerning Electric Versus Nonelectric Typewriters For Beginning Typewriting, Moine R. Gates

Theses and Dissertations

No abstract provided.

Activated Carbon From North Dakota Lignite, John R. Mcnally

Theses and Dissertations

Activated carbon was produced by reacting lignite char with steam in a fluidized-bed reactor which was designed and constructed for this study. Effects of three variables temperature, residence time and particle size, at four levels were studied statistically using a Latin square design. When the analysis of variance indicated that only two of the variables, temperature and residence time, were significant, a two-way classification design was used to investigate optimum activation conditions.

Activated carbon with adsorptive powers which were equal to or superior to Darco active carbon, as shown by the iodine test and the color adsorption test, were produced …

Effects Of Four Different Modality Training Programs On Iq And Reading Readiness Performance In The Lower Socio-Economic Level Kindergarten Child, Marilyn Segal

Theses and Dissertations

Four perceptual training programs were incorporated into an individualized kindergarten curriculum for disadvantaged children. One program stressed general auditory and visual perceptual skills, a second auditory skills specific to decoding, a third visual skills specific to decoding, and a fourth auditory and visual skills specific to decoding. Each of the four treatment groups were taught by the same teachers. Post-tests included IQ, auditory and visual measures of reading readiness, and two learning rate tests, the Murphy-Durrell learning rate test which uses a look-say instructional method, and a parallel learning rate test constructed by the investigator using a linguistic instructional approach. …

A Study Of The Fine Structure Of Perinotochordal Microfibrils In Normal And Enzyme-Treated Chick Embryos., Richard G. Frederickson

Theses and Dissertations

No abstract provided.

The Biological Regulation Of Copper Homeostasis In The Rat., Gary William Evans

Theses and Dissertations

No abstract provided.

Experimental Investigation For Torsional Stress Distribution, Ghanim H. Bihnam

Theses and Dissertations

No abstract provided.

A Study To Isolate, Identify, And Develop The Content Of A Minor Course Of Study In The Field Of Audio-Visual Education, Patricia O. Berntsen

Theses and Dissertations

No abstract provided.

A Study To Test The Effectiveness Of A Timeout Mask In Controlling Misarticulation In Reading, Nancy L. Mahlum

Theses and Dissertations

No abstract provided.

An Investigation Of The Characteristics Of The Anti-War Play, We Bombed In New Haven, Bruce J. Hallingstad

Theses and Dissertations

No abstract provided.

The Effect Of Age And Intensity On The Normal Hearer's Response To The Short Increment Sensitivity Index, Linda Sebelius

Theses and Dissertations

No abstract provided.

A Comparison Between Selected Items On The Minnesota Test For Differential Diagnosis Of Aphasia And The Token Test With Mild Adult Aphasics, Fay L. Mcphail

Theses and Dissertations

No abstract provided.

Influence Charts Of A Landing Strip By The Energy Method, Yei-Lung Tien

Theses and Dissertations

No abstract provided.

An Analysis And Production Of As You Like It, Barbara Rae Frey

Theses and Dissertations

No abstract provided.

A Comparative Study : Existing Vocational Trade And Industrial Teacher Certification Requirements And Practices Recommended By Authorities In The Field, Erwin K. Geigle

Theses and Dissertations

No abstract provided.

Investigations Of The Use Of Gonadotropins To Induce Spawning In The White Sucker Catostomus Commersoni (LacéPèDe), Shih-Kuo Tao

Theses and Dissertations

No abstract provided.

Biotin Production And Utilization In Certain Natural Environments, Gordon M. Fillipi

Theses and Dissertations

No abstract provided.

The Influence Of Family Culture On School Related Interests And Activities On 9th-12th Graders In An Urban Community : A Replication, James R. Reynolds

Theses and Dissertations

No abstract provided.

The Fine Structure Of The Subarachnoid Angle And A Lateral Recess Of The Subarachnoid Space, William A. Himango

Theses and Dissertations

No abstract provided.

The Search Motif In Frederick Philip Grove's A Search For America, Richard Reginald Ottenbreit

Theses and Dissertations

No abstract provided.

Cultural Background Characteristics Of Selected Graduate Students In Business Education And Education At The University Of North Dakota, Patricia Ann Fitzgerald

Theses and Dissertations

No abstract provided.

Oral Language Development And Its Relationship To Reading Ability, Mary H. Larson

Theses and Dissertations

No abstract provided.

Immunochemical Properties Of Walker 256 Carcinoma Histones, Henry William Spencer

Theses and Dissertations

No abstract provided.

Personality Traits Exhibited By Individual And Team Sport Athletes As Measured By The Edwards Personal Preference Schedule, Jack A. Harper

Theses and Dissertations

No abstract provided.

Modified Aahper Youth Fitness Test Norms For Freshmen College Males At The University Of North Dakota, Ronald G. Buzahora

Theses and Dissertations

No abstract provided.