Bounding film drainage in common thin films

A review of thin film drainage models is presented in which the predictions of thinning velocities and drainage times are compared to reported values on foam and emulsion films found in the literature. Free standing films with tangentially immobile interfaces and suppressed electrostatic repulsion are considered, such as those studied in capillary cells. The experimental thinning velocities and drainage times of foams and emulsions are shown to be bounded by predictions from the Reynolds and the theoretical MTsR equations. The semi-empirical MTsR and the surface wave equations were the most consistently accurate with all of the films considered. These results are used in an accompanying paper to develop scaling laws that bound the critical film thickness of foam and emulsion films

Experiential learning applied to a residential life training program

The purpose of this paper is to describe and justify a course project for a resident assistant course. Specifically, the project addresses the important role Resident Assistants play in developing community. To develop a project that was both practical and intellectually stimulating to students, as well as beneficial to the department, Kolb\u27s (1981, 1984) experiential learning model was used as a conceptual framework. Kolb\u27s theory proposes that students learn at their optimal level when they can experience learning in many different ways. Based on this theory, the project is designed to engage each student in active learning while developing the skills they will utilize when they begin their responsibilities as a Resident Assistant. The first part of the paper draws from the literature of both academic and student affairs on the changing philosophies of teaching and learning and on the importance of learning through a variety of means. The second section describes the project. Third and finally, the merits and limitations of the course project are described

Study of inducer load and stress Interim report, 15 Feb. 1968 - 15 Oct. 1968

Literature survey, analytic formulations, and test rig designs for cavitating inducers in rocket engine turbopump

Effects of a Smart-phone Application on Psychological, Physiological, and Performance Variables in College-Aged Individuals While Running

International Journal of Exercise Science 8(2) : 104-111, 2015. The purpose of this study was to determine the effects of auditory exergaming through the use of a smart-phone app called Zombies, Run! on psychological, physiological, and performance variables in college-aged individuals while running. Participants included both males (n = 10) and females (n = 10). Participants ran three 15 minute trials, after which they completed motivational questionnaires regarding inspiration, enjoyment, confidence, and anxiety levels. The first run got the participants accustomed to the application. The second and third were randomly counterbalanced either using the application again or running with no auditory stimulus. The analysis of the motivational questionnaire and physiological variables found that both sexes felt more inspired to run using the Zombies, Run! application than running with no auditory stimulus (P = .003), males felt more confident they could complete the trials (P = .02), females felt they exerted themselves more during the zombie run (P = .03), males were more motivated than females to run faster to avoid losing items (P = .005) and males felt more motivated than females to collect items and improve their in-game township (P = .002). These results indicated that females perceived more exertion and felt less confident, but were more inspired while running using the Zombies, Run! application. Males felt more confident, more inspired, and more intrigued by the video game itself than females. Therefore, both were more motivated to run with than without the application

Wandering

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/67904/2/10.1177_153331758800300109.pd

SRB Environment Evaluation and Analysis. Volume 3: ASRB Plume Induced Environments

Contract NAS8-37891 was expanded in late 1989 to initiate analysis of Shuttle plume induced environments as a result of the substitution of the Advanced Solid Rocket Booster (ASRB) for the Redesigned Solid Rocket Booster (RSRB). To support this analysis, REMTECH became involved in subscale and full-scale solid rocket motor test programs which further expanded the scope of work. Later contract modifications included additional tasks to produce initial design cycle environments and to specify development flight instrumentation. Volume 3 of the final report describes these analyses and contains a summary of reports resulting from various studies

Geotechnical and Groundwater Site Characterization on the UMTRA Project

Reclamation of 24 inactive uranium mill tailngs piles involves remedial work to stabilize the piles for 1000 years. Site characterization of geotechnical and groundwater conditions at each site is undertaken prior to remedial action design. This paper describes the approach to UMTRA Project site characterization. A case history, Green River, is described. Details of site characterization costs for most sites are provided

Involvement of T suppressor lymphocytes in the progression of UV-induced fibrosarcomas

Call number: LD2668 .T4 1985 C66Master of Scienc

Evaluation of be-38 percent al alloy final report, 27 jun. 1964 - 28 feb. 1965

Mechanical properties, microstructural features, and general metallurgical quality of beryllium- aluminum allo

The Addition of Bromine to Crotonic Acid and to Ethyl Crotonate under Various Conditions

Many chemical and physical reactions are accompanied by changes in weight of the reactants due to evaporation of liquids, evolution of gases, or adsorption of gases. Studies are made using data which show the manner in which the weight changes with time. Kinetic studies are made from a knowledge of the rate of loss or gain of a component. The drying of a precipitate to constant weight involves a loss in weight. Rates of evaporation of liquids from different types of surfaces involve changes of weight as a function of time. Several instruments and methods are used to follow weight changes. Gas buret systems are used to measure the volume of a gaseous component which is adding to or subtracting from the weight of a reactant. The ordinary analytical balance is used to follow weight changes by making intermittent weighings. This latter method involves tedious operations and interruptions of the treatment of the reactants. Effort has been put forth to devise instruments which will automatically weigh substances and record these weighings on some type of graph. Gregg and Wintle (1) devised a glass automatic electrical sorption balance. Gregg (2) later described a recording system for this type balance. Eyrand (3) reported a glass sorption balance of a somewhat different type. Duval (4) described a thermal balance that automatically records changes in weight on film. Described in this paper is an instrument attached to a modified ordinary analytical balance which automatically records on graph paper changes in weight as a function of time