Viscous pumps: Comparative assessment of effectiveness

2003 ◽  
Vol 217 (2) ◽  
pp. 167-174 ◽  
Author(s):  
H. A. Arafa ◽  
T. A. Osman
Keyword(s):  
Experimental Test ◽  
Comparative Effectiveness ◽  
Comparative Assessment ◽  
Dimensionless Number ◽  
Test Results ◽  
Sufficient Data ◽  
Design Engineers ◽  
Viscous Pump

A classification of the different viscous pump embodiments and a survey of the application areas are made. A dimensionless number is newly introduced here, and it is suggested that this be used in evaluating the comparative effectiveness of viscous pumps of different configurations. The effectiveness is evaluated for viscous pumping devices developed over the last four decades and for which sufficient data and experimental test results are available. It is shown that these pumps could be broadly categorized into effective and much less effective types. An enumeration of possible design pitfalls is given for the latter types. The findings of the present paper are deemed useful to design engineers in their endeavour to assess the effectiveness of existing viscous pumps and in developing new ones.

Advanced railgun experimental test results and implications for the future

1992 ◽  
Author(s):  
M. HOLLAND ◽  
P. EGGERS ◽  
S. GUINTO ◽  
R. STEVENSON ◽  
GREGORY COLOMBO
Keyword(s):  
Experimental Test ◽  
Test Results ◽  
The Future

PENGEMBANGAN PERANGKAT PEMBELAJARAN MENGGUNAKAN PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) DENGAN INTEGRASI NILAI-NILAI KARAKTER DI SMAN I TUGUMULYO

2014 ◽  
Vol 13 (3) ◽  
Author(s):  
Sri Wahyu Widyaningsih ◽  
Irfan Yusuf
Keyword(s):  
Teaching And Learning ◽  
Lesson Plan ◽  
Development Stage ◽  
Design Stage ◽  
Learning Tools ◽  
Test Results ◽  
Learning Materials ◽  
Is Research ◽  
Efficacy Trials

<p>The research is motivated not yet using CTL approach. In addition, the study provided yet foster the character value of students. This study aimed to the development of learning materials by using CTL approach with the integration of character value are valid, practical, and effective. The type of this research is research and development by using 4-D models. The stages of this research are define, design, and development. The define stage consists of analyzing of curriculum, students, and concept. Then, the learning materials as lesson plan, handout, student’s worksheet, and evaluation, were designed at design stage. The development stage was doing validity, practicality, and effectiveness test. The data of this research was collected by using validation instruments, questionnaire of students and teacher, observation and test instruments. The result of research with validity of the test results showed that the syllabus, lesson plans, teaching materials, worksheets and assessment sheets (cognitive, affective and psychomotor) developed very valid. The test results showed that the learning practicalities developed very practical. Based on the results of efficacy trials, it was stated that the developed learning very effectively used as learning tools are developed to improve the activity and competence of students in the cognitive, affective and psychomotor and behavioral character. And Those, learning materials by using CTL approach with the integration of character values are classification of very valid, very practical, and effective.</p>

On axial compressive behavior of steel fiber reinforced concrete confined by FRP

2021 ◽  
pp. 136943322098165
Author(s):  
Hossein Saberi ◽  
Farzad Hatami ◽  
Alireza Rahai
Keyword(s):  
Reinforced Concrete ◽  
Experimental Test ◽  
Steel Fiber ◽  
Experimental Tests ◽  
Fiber Reinforced Concrete ◽  
Steel Fibers ◽  
Test Results ◽  
Fiber Reinforced ◽  
Steel Fiber Reinforced Concrete ◽  
Frp Confinement

In this study, the co-effects of steel fibers and FRP confinement on the concrete behavior under the axial compression load are investigated. Thus, the experimental tests were conducted on 18 steel fiber-reinforced concrete (SFRC) specimens confined by FRP. Moreover, 24 existing experimental test results of FRP-confined specimens tested under axial compression are gathered to compile a reliable database for developing a mathematical model. In the conducted experimental tests, the concrete strength was varied as 26 MPa and 32.5 MPa and the steel fiber content was varied as 0.0%, 1.5%, and 3%. The specimens were confined with one and two layers of glass fiber reinforced polymer (GFRP) sheet. The experimental test results show that simultaneously using the steel fibers and FRP confinement in concrete not only significantly increases the peak strength and ultimate strain of concrete but also solves the issue of sudden failure in the FRP-confined concrete. The simulations confirm that the results of the proposed model are in good agreement with those of experimental tests.

Rare Diseases, Common Problems: Recognition and Management

PEDIATRICS ◽  
1978 ◽  
Vol 62 (6) ◽  
pp. 1056-1060
Author(s):  
Neil A. Holtzman
Keyword(s):  
Johns Hopkins Hospital ◽  
Full Time ◽  
Test Results ◽  
Irreversible Damage ◽  
Negative Results ◽  
Initial Symptoms ◽  
Metabolic Conditions ◽  
Common Problems

Although a growing number of inherited metaboic diseases can be treated effectively, diagnosis often comes too late to benefit the patient. There are at least two ways, however, in which diagnosis can be made before irreversible damage occurs. First, physicians whose services are sought when a patient becomes ill could be attuned to the possibility of metabolic conditions. This is difficult when the initial symptoms, for example, vomiting or poor feeding, resemble those of common, self-limited illnesses, or when they suggest, as with respiratory distress, other categories of serious illness. Second, all infants could be screened for indicators of some of these conditions. Then the primary physician has a responsibility to determine the significance of both positive and negative results and to decide whether follow-up is needed. This study had three objectives: (1) to determine whether physicians are aware of the common problems with which inherited metabolic conditions often present; (2) to determine whether their management of common problems facilitates the early diagnosis of such conditions; and (3) to assess their evaluation of screening test results. METHODS Physicians who were participating in three continuing education programs were asked to answer, anonymously, several questions dealing with recognition and in management of geneticmetaboic diseases before they were given any instruction on the subject. The same questionnaire was distributed to the pediatric house staff at The Johns Hopkins Hospital. The tabulated results were discussed with the respondents collectively during hour-long conferences. RESULTS AND COMMENTS Classification of Respondents One hundred fifty-six physicians returned the questionnaire: 67 pediatricians (in practice, 56; full-time faculty, 6: unknown, 5), 30 general or family practitioners, and 59 pediatric house officers.

scholarly journals Non-specific diagnoses are frequent in patients hospitalized after calling 112 and their mortality is high – a register-based Danish cohort study

2020 ◽  
Author(s):  
Frederikke Vestergaard Nielsen ◽  
Mette Rønn Nielsen ◽  
Ida Lund Lorenzen ◽  
Jesper Amstrup ◽  
Torben Anders Kløjgaard ◽  
...  
Keyword(s):  
Cohort Study ◽  
International Classification Of Diseases ◽  
Rank Test ◽  
Test Results ◽  
Historical Cohort ◽  
Specific Diagnosis ◽  
Number Of Patients ◽  
Classification Of Diseases ◽  
Icd 10

Abstract Background The number of patients calling for an ambulance increases. A considerable number of patients receive a non-specific diagnosis at discharge from the hospital, and this could imply less serious acute conditions, but the mortality has only scarcely been studied. The aim of this study was to examine the most frequent sub-diagnoses among patients with hospital non-specific diagnoses after calling 112 and their subsequent mortality. Methods A historical cohort study of patients brought to the hospital by ambulance after calling 112 in 2007-2014 and diagnosed with a non-specific diagnosis, chapter R or Z, in the International Classification of Diseases, 10 th edition (ICD-10). 1-day and 30-day mortality was analyzed by survival analyses and compared by the log-rank test. Results We included 74,847 ambulance runs in 53,937 unique individuals. The most frequent diagnoses were ‘unspecified disease’ (Z039), constituting 47.0 % (n 35,279). In children 0-9 years old, ‘febrile convulsions’ was the most frequent non-specific diagnosis used in 54.3 % (n 1,602). Overall, 1- and 30-day mortality was 2.2 % (n 1,205) and 6.0 % (n 3,258). The highest mortality was in the diagnostic group ‘suspected cardiovascular disease’ (Z035) and ‘unspecified disease’ (Z039) with 1-day mortality 2.6 % (n 43) and 2.4 % (n 589), and 30 day mortality of 6.32 % (n 104) and 8.1 % (n 1,975). Conclusion Among patients calling an ambulance and discharged with non-specific diagnoses the 1- and 30-day mortality, despite modest mortality percentages lead to a high number of deaths.

Classification of Spontaneous Cerebrospinal Fluid Middle Ear Effusion: Review of Forty-Nine Cases

1985 ◽  
Vol 93 (5) ◽  
pp. 625-634 ◽  
Author(s):  
J. Gail Neely
Keyword(s):  
Cerebrospinal Fluid ◽  
Middle Ear ◽  
English Literature ◽  
Type I ◽  
Otic Capsule ◽  
Test Results ◽  
Middle Ear Effusion ◽  
Therapeutic Implications ◽  
Ear Effusion

This article presents a classification system of spontaneous cerebrospinal fluid middle ear effusion to facilitate early diagnosis and lesion localization for surgical correction. Thirty-eight articles containing case histories of 45 patients with spontaneous cerebrospinal fluid middle ear effusion reported in the English literature from 1913 to 1983 were reviewed. Four additional personal cases, representing the largest single series, are described in detail. Classification of these cases into the following three types has been possible: (type I, abnormal connections through the otic capsule; type II, abnormal connections adjacent to the otic capsule; and type III, abnormal connections distant from the otic capsule. The diagnostic and therapeutic implications of each type are unique. Age, auditory and vestibular test results, and computerized or hypocycloldal tomography differentiate the three.

FRP Reinforcement to Retrofit Bridge Pier After Repair: Experimental Test Results

2021 ◽  
pp. 449-458
Author(s):  
Junqing Xue ◽  
Davide Lavorato ◽  
Gabriele Fiorentino ◽  
Alessandro Vittorio Bergami ◽  
Bruno Briseghella ◽  
...  
Keyword(s):  
Experimental Test ◽  
Bridge Pier ◽  
Test Results ◽  
Frp Reinforcement

Classification of Patterns and Syndromes on Autonomic Testing

2019 ◽  
pp. 3-3
Author(s):  
Peter Novak
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Cerebral Autoregulation ◽  
Cerebral Blood Flow Velocity ◽  
Functional Anatomy ◽  
Cerebral Hypoperfusion ◽  
Test Results ◽  
Correct Interpretation ◽  
Autonomic Testing

This chapter lists the main syndromes and patterns seen during autonomic testing, based on classification according to physiology and/or functional anatomy. Although the classification is arbitrary, it is useful in that it allows the diagnostician to see classify patterns in test results that assist in the correct interpretation of the results. Presented in a series of easy to access lists, the most common patterns are autonomic failure, autonomic overactivity, paroxysmal dysautonomia orthostatic hypotension syncope, hyperventilation, cerebral hypoperfusion, cerebral blood flow velocity, and cerebral autoregulation disorders.

The Experimental Test Results of a Two-Section Linear Induction Launcher

2020 ◽  
Vol 48 (11) ◽  
pp. 4041-4047
Author(s):  
Cagdas Tunceroglu ◽  
Ugur Hasirci ◽  
Dincer Maden ◽  
Abdulkadir Balikci
Keyword(s):  
Experimental Test ◽  
Test Results ◽  
Linear Induction
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