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The New Yilgarn Vermin Fence, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

THE State's vermin fence system, forming a barrier between the outer edges of the agricultural areas and the pastoral areas, has been extended 162 miles with the completion of the Yilgarn Vermin Fence this year.

Fence Out Those Rabbits, J C. Rowbotham

Journal of the Department of Agriculture, Western Australia, Series 4

THERE is probably no more distressing sight to orchardists' eyes than two or three hundred young fruit trees that have been damaged by rabbits.

Proceedings Of A Summer Institute In Water Resources: Volume 3 - Water Quality Control And Management, P. H. Mcgauhey

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

The Microbial Hydrolysis Of Cellulose And Some Factors Affecting The Production Of Cellulase In A Submerged Culture Of Alternaria Sp, Robert Murray Logan

Doctoral Dissertations

"A mile hydrolyzing procedure was utilized to degrade oak sawdust. Its capability of producing a suitable fermentatation [sic] medium was studied. In the interest of solubilizing, enzymatically, the carbohydrate portion of oak sawdust, an investigation was conducted in which various microorganisms were examined for their ability to utilize different forms of cellulose for their growth and to produce cellulose decomposing enzymes. The microorganisms included a myxobacterium, several fungi, and a wood-rotting basidiomycete. The fungi included two highly cellulolytic organisms, Myrothecium verrucaria and Trichoderma viride. The myxobacterium used was Sorangium cellulosum and the basidiomycete was Pleurotus ostreatus. The principla substrates employed …

The Effect Of Carbonate Karst Terrain On Water Quality, Robert Russell Kilgo

Masters Theses

"The ever increasing use of water and unabated pollution of streams have made necessary increased research efforts into the quality and quantity of the available national water resources. Karst terrain is prevalent in several sections of the United States, however, little work has been done on the effect of this topography on water quality.

The purpose of this investigation was to determine the effect of carbonate karst terrain on the quality of water. The Meramec spring area, east of Rolla, Missouri, was selected for study. This area was underlain with dolomite formations and contains both karst and non-karst drainage basins …

The Effect Of Cadmium On Anaerobic Digestion, Lyle Lynn Pruitt

Masters Theses

"The main purpose of this study was to determine the effect of cadmium on anaerobic digestion. Metal concentrations in the form of regular and slug doses were considered. The possibility of acclimating anaerobic bacteria to higher cadmium levels was studied, and attempts were made to reestablish digestive action through re-seeding in digesters overcome by high cadmium concentrations"--Abstract, page [ii].

Weed Control In Irrigation Channels, Geoffrey A. Pearce

Journal of the Department of Agriculture, Western Australia, Series 4

Probably the major task involved in maintaining drainage and irrigation channels is the regular removal of weed growth.

The cost of hand chipping a standard head channel is approximately 10s. per chain.

The use of suitable chemicals could reduce this cost considerably.

Good Facilities Help T.B. Testing, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

Owner co-operation is needed for the smooth working of the tuberclin testing of cattle, compulsory in the South-West Land Division.

This article describes suitable facilities for the testing and how they operate.

Lot Feeding Of Beef Cattle. 3. Facilities Required For A Feed Lot, W J O Wilkie

Journal of the Department of Agriculture, Western Australia, Series 4

MANY THINGS must be considered in planning a feed lot.

The site must be well chosen, fencing, gates and yards must be adequate for the cattle carried and feeding and watering facilities should be of a high standard.

Other things to consider are the provision of shelter and shade for the cattle and buildings for feed storage and other purposes.

Diffusion Of Single And Multicomponent Solutes From Capillaries, Oleh S. Sklepkowycz

Theses

The purpose of this investigation was to determine the diffusion coefficients of several single and multi-component solutes, and to establish the relations between the diffusivity, the solute composition) and the diffusion rate. Such information pertinent to the extraction and leaching operations, can not be found in literature.

The procedure developed by Piret, Wbel, and Armstrong (25), involving observation of the extraction rate of two-phase mixtures from straight capillaries, was adopted and verified on a known sodium chloride-water system.

In the course of the experimental work diffusion coefficients more determined for ursolic acid, palmitic acid, and tripalmitin in methyl isobutyl ketone. …

Attack The Rabbit At Home : Destroy Warrens And Harbourage, J S. Crawford

Journal of the Department of Agriculture, Western Australia, Series 4

Effective rabbit destruction often calls for a carefully worked out control programme consisting of poisoning, fumigating and warren and harbourage destruction.

Possibly the most effective means of not only controlling rabbits but ultimately eradicating them from holdings is the destruction of warrens and harbourage.

The Levy Nest : A Useful Aid To Farrowing, P Mcnamara

Journal of the Department of Agriculture, Western Australia, Series 4

The levy farrowing nest which has given good results in England is a recent innovation in Australia.

It could be well adapted for W.A. conditions and is described here by Pig Husbandry Adviser Mr. P. McNamara, B.A. (Cantab.).

A Simplified Mulesing Crush, G T. Halpin

Journal of the Department of Agriculture, Western Australia, Series 4

DURING the last two years Mr. Tom Flanigan, a mulesing contractor in a large area centred at Katanning, has performed the mules-tailstrip operation on many thousands of lambs and sheep.

Migratory Movements Of Emus And Control Efforts, John L. Long, T. J. Tozer

Journal of the Department of Agriculture, Western Australia, Series 4

ALTHOUGH little data has been recorded on movements or migrations of the Emu (Dromaius novea-hollandiae), it is well known throughout the farming community that some such movement occurs in September and October in most years at least.

The Indole Acetic Acid Oxidase Of Hygrophorus Conicus., Dilip N. Patel

Masters Theses

"The purpose of this investigation was to determine an assay method for measuring the activity of the indole acetic acid oxidase present in Hygrophorus conicus. This enzyme converts tryptamine or indole acetic acid (IAA) into oxindole acetic acid (OIAA).

An assay method for measuring the activity of the enzyme was developed based on the spectrophotometric measurement of tryptamine, IAA, and OIAA. Several other assay methods were tried. The colorimetric method of Gordon and Weber ^(l4) was found to be useful for a quantitative determination of IAA and was insensitive to OIAA. Paper chromatography proved to be useful as a qualitative …

The Removal Of Residual Organic Materials From Sewage Plant Effluents Using Continuous Foam Flotation., Ajab S. Malik

Masters Theses

"This investigation was conducted to determine the feasibility of using a continuous foam flotation process for the removal of soluble organic materials from sewage treatment plant effluents. All effluents contained alkyl benzene sulfonates (ABS), derived from synthetic detergents. The studies were conducted on a laboratory scale. The reduction in the chemical oxygen demand was used as a measure of the effectiveness of the removal of the organic materials. In addition, ABS determinations were employed to study the fate of the detergent.

A flotation cell, equipped with the means of controlling the air and liquid flow rates, was used. Air flow …

The Toxic Effects And Fate Of Selected Pesticides In Natural Water., Donald Lee Evans

Masters Theses

"The extensive application of synthetic organic pesticides in the United States has created many problems, particularly with respect to fish life. While a number of investigations have been undertaken to determine the toxicity of several pesticides to various species of fish, a great deal of research work is needed before the problem is completely understood.

The individual toxicities of DDT, BHC, 2.,4-D, and Sevin to western golden shiners were determined by means of the bioassay procedure at a t empera t ure Of 16oc. The four chemicals studied were found to be toxic to the test fish with Median Tolerance …

A Model System For The Investigation Of The Effect Of Soil Particles On The Microbial Decomposition Of Herbicides : Progress Report, Walter Joseph Farmer

JTRP Technical Reports

No abstract provided.

Planning New Farm Dams : Excavated Earth Tanks, J E. Watson, J. C. Grasby

Journal of the Department of Agriculture, Western Australia, Series 4

A GOOD farm dam is a valuable asset, and well worth its cost, but there are many aspects to consider when a new dam is required. Careful planning with adequate testing and checking will help to get the best value for money and reduce the chance of costly failures.

This article discusses these aspects in relation to the excavated earth tank type of dam.

Characteristics Of Instrumentation Personnel In The Aerospace Manufacturing Industry Of The New York Metropolitan Area, Kennith Glenn Gordon

Dissertations and Theses @ UNI

As the aerospace manufacturing industry of the New York Metropolitan Area becomes more deeply involved in industrial, scientific, and military activities, it seems reasonable to expect a corresponding growth in the knowledge and understanding of that industry by the engineering and education professions alike . The engineering profession would require an accurate description of the technical character, while the education profession would be concerned with developing a better understanding of the educational ramifications of this new industry. A study of the entire industry would have required the use of resources beyond the power of the writer. However, it was decided …

The Magnetocardiogram A New Approach To The Fields Surrounding The Heart, R. A. Stratbucker, C. M. Hyde, S. E. Wixon

Department of Electrical and Computer Engineering: Faculty Publications

Experiments have been conducted which reveal the existence of a detectable magnetic field associated with cardiac electrical activity. The relationship between the magnetic record and the electrocardiogram has been explored and it is shown that under certain conditions of axis orientation the voltage induced into a toroidal sensing element around the heart has the form of the first time derivative of the electrocardiogram. A formula based on Maxwell's equations has been developed to relate these two phenomona.

Udder Preparation For Milking, W G. Robinson

Journal of the Department of Agriculture, Western Australia, Series 4

REGULAR routine methods of preparing the udder for milking hare long been recognised as essential for good "let down" of milk.

The biggest problem so far has been to combat the spread of disease, in particular mastitis from udder to udder by the milker's hands or the udder washing cloths.

Some Advances In Milking Shed Installations And Techniques, G W. Scott

Journal of the Department of Agriculture, Western Australia, Series 4

TklG improvements in milk quality and increases in the level of production have occurred in recent years.

This has been largely due to improved dairy premises, technical advances in machine milking and better shed husbandry.

Swing Fence Flood Crossing For Creeks In The Kimberleys, A L. Payne

Journal of the Department of Agriculture, Western Australia, Series 4

FENCING is the basis of the regeneration programme on the eroded Ord River catchment area, and the fences constructed must cross numerous creeks.

But heavy downpours of short duration characterise the wet season experienced in this area.

Because the rain falls on to bare, compacted ground, run-off is intense and gullies and creeks rise rapidly, causing serious damage to conventional fences and flood gates across watercourses.

The Chemical Oxidation Of Alkyl Benzene Sulfonates With Potassium Permanganate., Rameshchandra M. Patel

Masters Theses

"The purpose of this investigation was to study the chemical oxidation of alkyl benzene sulfonates with potassium permanganate. ABS concentrations of 3, 5 and 10 mg/1, and potassium permanganate dosages of 0.5, 1.25, 2.5, 5.0, 10.0, 20.0, 40.0 and 80.0 mg/1 were used. The study was made in deionized water at room temperature and a pH value of 8.5. A 5-hour detention period was provided. The ABS concentration, potassium permanganate concentration, foam volume and foam stability were the main parameters employed.

It was found that potassium permanganate significantly reduced the ABS concentration and foam volume. The rate of the oxidation …

Well Designed Cattle Yards, W J O Wilkie

Journal of the Department of Agriculture, Western Australia, Series 4

GOOD yards are those in which cattle can be handled quietly, safely and efficiently.

The manner of handling is as important as the design of the yards.

Too much dog or whip can make cattle difficult, in even the best of yards.

Farm Dams In The Wheatbelt, J E. Watson

Journal of the Department of Agriculture, Western Australia, Series 4

MANY new farm dams are sunk each year in the wheatbelt and much money is spent on them.

With continued development of new land, and increasing stock carrying capacity of older land under legume pastures, the need for more water supplies will continue for a long time.

Back Flushing On Milking Machine Teat Cups, G W R Scott, K. Needham

Journal of the Department of Agriculture, Western Australia, Series 4

THE possibility of replacing the dipping of teat cups between cows with a system of back flushing with water has been investigated for some time by different workers.

The Removal Of Abs From Tap Water Solutions And Sewage Plant Effluents At Various Air Rates Using Continuous Foam Flotation., Ratan F. Daboo

Masters Theses

"This investigation was performed to study the removal of Alkyl Benzene Sulfonate (ABS) from tap water solutions and sewage treatment plant effluents by continuous foam flotation and to determine the effect of the air flow rate on the removal.

A flotation cell provided with controlled air and liquid flow rates was used for the continuous process. Air flow rates between zero and 29.4 cubic feet per hour were investigated. A liquid feed flow rate of 120 milliliters per minute was used for most of the experiments with one run made at 60 milliliters per minute. The liquid samples were analyzed …

The Performance Of A Mechanically-Aided Countercurrent Extraction Column., Jerry James Carr

Masters Theses

"In recent years liquid extraction has become a major industrial method for the separation of liquid solutions. Liquid extraction has proven successful in some separations performed only with great difficulty by other, more common mass-transfer operations. Th e industrial utilization of liquid extraction has resulted in considerable interest in the design and performance correlations of high-capacity, high-efficiency extraction equipment.

Continuous countercurrent columns, filled with various packings, baffles, and plates, have been found to be relatively ineffective in liquid extract on service. The density difference of the contacted phases is generally insufficient to, by itself, cause the intimate contact necessary for …