Engineering Commons^™

Highway Finance — 1981 Update, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This Bulletin --- "HIGHWAY FINANCE - Update 1981" --- has been compiled to provide Local Road and Street Officials with a year-end report on the results of the 1981 gas tax legislation, as well as an updated estimate of anticipated revenue for Calendar Year 1982.

Total highway-user revenue for 1981 was up some $39 million over 1980 totals; this is about 6% over the totals forecast back in July. And on the basis of the 1981 experience, the 1982 total revenue estimate is up to $393 million -- a $23 million increase over the July forecast. If the 1982 experience …

County Storm Drainage Manual 1981, Christopher B. Burke

Indiana Local Technical Assistance Program (LTAP) Publications

This manual is a comprehensive catalog of procedures, design methods and criteria, and general background information which will enable the designer to quickly learn or review the basic principles of storm drainage design. Subjects included are the precipitation and hydrological cycle, runoff and its estimation, open channels, flow in gutters and inlets, stormwater storage, and storm sewer system design. Included in the appendices are basics of statistical analysis, fundamentals of hydraulics, and a list of regulatory agencies and governmental bodies which may have jurisdiction over drainage projects.

Cardiac Output During Cardiopulmonary Resuscitation At Various Compression Rates And Durations, Kevin R. Fitzgerald, Charles F. Babbs, Henry A. Frissora, Robert W. Davis, Douglas I. Silver

Weldon School of Biomedical Engineering Faculty Publications

Cardiac output during cardiopulmonary resuscitation (CPR) was measured by a modified indicator-dilution technique in 20 anesthetized dogs (6-12 kg) during repeated 1- to 2-min episodes of electrically induced ventricular fibrillation and CPR, produced by a mechanical chest compressor and ventilator. With compression rates from 20 to 140/min and compression durations (duty cycles) from 10 to 90% of cycle time, cardiac output (CO) was predicted by the equation:

,

where CR is compression rate, DC is duty cycle, SV_max (19 ml) is the effective capacity of the pumping chamber, and k_l (0.00207 min) and k₂ (0.00707 min) are …

Alteration Of Defibrillation Threshold By Antiarrhythmic Drugs: A Theoretical Framework, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

No abstract provided.

Cardiac Output During Cpr: A Comparison Of Two Methods, D L. Silver, R J. Murphy, Charles F. Babbs, L A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

Simultaneous Fick and saline dilution methods were compared for measuring cardiac output during experimental cardiac arrest and resuscitation in anesthetized dogs. During cardiopulmonary resuscitation (CPR) cardiac output averaged 53 ± 30 ml/min-kg (42% of pre-arrest values). Values obtained using the Fick vs. saline methods were highly correlated (r = 0.96), and were not statistically different (t = 1.47, df = 16).

Effect Of Thoracic Venting On Arterial Pressure, And Flow During External Cardiopulmonary Resuscitation In Animals, Charles F. Babbs, Nicholas Bircher, Dennis E. Burkett, Henry A. Frissora, Brian C. Hodgkin, Peter Safar

Weldon School of Biomedical Engineering Faculty Publications

To test the hypothesis that fluctuations in global intrathoracic pressure are the dominant cause of blood flow during external cardiopulmonary resuscitation (CPR) the authors studied the effects of open pneumothorax on experimental CPR in 7 domestic pigs and 12 mongrel dogs. Similar studies were conducted independently at three laboratories and are reported jointly. All studies were conducted during electrically induced ventricular fibrillation and with standard CPR technique, including ventral-dorsal chest compression at 60/min, 0.5 sec compression duration, 1:5ventilation:compression ratio. During alternate periods of CPR, intrathoracic pressure was vented through bilateral chest tubes, placed to create open pneumothorax and partial collapse …

Transchest Defibrillation Under Conditions Of Hypothermia, W A. Tacker, Charles F. Babbs, D R. Abendschein, L A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

This study was conducted to determine whether or not hypothermia changes ventricular defibrillation threshold. Ventricular fibrillation was induced by electrical stimulation of the endocardium in pentobarbital anesthetized dogs, both during normothermia and hypothermia produced by circulating 8 °C water through a rubber bladder implanted in the peritoneal cavity. Defibrillation threshold was determined as the shock strength needed to defibrillate the ventricles and differing no more than 10 percent from a shock strength that failed to defibrillate. Defibrillation threshold current was stable for body temperatures ranging from 37 oC to 22 oC. Threshold energy increased linearly with decreasing temperature in keeping …

Physical Principles Of Local Heat Therapy For Cancer, Charles F. Babbs, David P. Dewitt

Weldon School of Biomedical Engineering Faculty Publications

Local hyperthermia therapy for cancer can produce selective heating of solid tumors on the basis of known physical laws. If energy is deposited in the general region of the tumor, temperature tends to develop in the tumor higher than that in surrounding normal tissues. The goal of therapy is to achieve cytotoxic temperature elevations in the tumor for an adequate period of time, without damaging nearby normal tissues. Several modalities exist for local heat treatment, of which radiofrequency and ultrasound offer the most promise for controlled, localized heating at depth. A paucity of blood flow in the tumor compared to …

Population Trends For Indiana —Counties —Cities —Towns 1970–1980, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This report presents tabulations and rankings that permit a direct comparison of population growth and population totals for city, town and county units.

Prediction And Control Of Field Swell Pressures Of Compacted Medium Plastic Clay : Interim Report, Gregory Matthew Terdich

JTRP Technical Reports

No abstract provided.

Development Of A System For The Evaluation Of Pavements In Indiana : Summary Report, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.

Highway Bridge Vibration Studies, John Thixton Gaunt, Charles D. Sutton

JTRP Technical Reports

No abstract provided.

Stabilization Of Three Typical Indiana Aggregates Using Foam Asphalt : Interim Report, Franco Luis Castedo, Robert Lawrence Shofstall

JTRP Technical Reports

No abstract provided.

Improved Methods For State-Wide Vehicle Counting, Shwu-Mei Hong Chen

JTRP Technical Reports

No abstract provided.

An Investigation Of The Final Construction Record Procedure For The Indiana State Highway Commission, Anne Marie Bigane

JTRP Technical Reports

No abstract provided.

Use Of Mycorrhizal Inoculation For Plant Establishment On Highway Sites : Interim Report, Stephen Dunning Verkade, David Foster Hamilton

JTRP Technical Reports

No abstract provided.

Development Of A Laboratory Technique To Quantify Concrete Curing, Ephraim Senbetta

JTRP Technical Reports

No abstract provided.

Treatment Of Sanitary Wastes At Interstate Rest Areas, James E. Etzel

JTRP Technical Reports

No abstract provided.

Evaluation Of Design And Control Alternatives To Improve Safety Of Intersections Of Multi-Lane Highways With Other Highways, Harold L. Michael, Kumares C. Sinha, Joseph A. Fletcher

JTRP Technical Reports

No abstract provided.

A Rockwell Hardness Test For Portland Cement Concrete, Douglas Windslow

JTRP Technical Reports

No abstract provided.

Traffic Speed Report No. 114 : Interim Report, Richard Philip Guenthner, George K. Stafford

JTRP Technical Reports

No abstract provided.

Predicting Performance Of Buried Conduits, G. A. Leonards, Tzong-Hsin Wu, Charng-Hsein Juang

JTRP Technical Reports

No abstract provided.

A Laboratory Investigation On The Use Of Foamed Asphalt For Recycled Pavements : Interim Report, Michael Brennan

JTRP Technical Reports

No abstract provided.

Framework For A Pavement Evaluation System : Interim Report, El-Sayad Wafa Metwali

JTRP Technical Reports

No abstract provided.

Compressibility Of Field Compacted Clay : Interim Report, Ping-Sien Lin, C. W. Lovell

JTRP Technical Reports

No abstract provided.

Pore Size Distribution Of Sandy Soils And The Prediction Of Permeability : Interim Report, Charng-Hsein Juang

JTRP Technical Reports

No abstract provided.

Three-Dimensional Slope Stability Analysis, Rong-Her Jimmy Chen

JTRP Technical Reports

No abstract provided.