An Experimental Study of Subsonic Cavity Flow - Physical Understanding and Control

2004 ◽  
Author(s):  
Marco Debiasi ◽  
Jesse Little ◽  
Jim Myatt ◽  
Mo Samimy ◽  
P. Yan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Cavity Flow ◽  
Physical Understanding ◽  
And Control

Experimental study of shear-layer/acoustics coupling in Mach 5 cavity flow

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 242-252
Author(s):  
O. H. Unalmis ◽  
N. T. Clemens ◽  
D. S. Dolling
Keyword(s):  
Experimental Study ◽  
Shear Layer ◽  
Cavity Flow

Flotation Experimental Study of High-Sulfur Cu-Zn Ore in Yunnan

2014 ◽  
Vol 490-491 ◽  
pp. 160-163
Author(s):  
Zhi Guo Zhang ◽  
Quan Jun Liu ◽  
Jin Cheng Ran
Keyword(s):  
Experimental Study ◽  
Mineral Composition ◽  
Recovery Rate ◽  
Closed Circuit ◽  
Copper Concentrate ◽  
Concentrate Grade ◽  
And Control ◽  
Zinc Concentrate

The experimental ore belongs to high-sulfur Cu-Zn poly-metallic ore, the mineral composition of ore is complex, cupriferous pyrite most are disseminated. The Cu grade of raw ore is 0.76%, Zn grade is 1.48% and S about 25.02%. on the basis of best reagent system and control flotation time, the author did closed circuit process. the results of closed circuit process as follows: the copper concentrate grade is 20.35% and recovery rate is 86.081%; the zinc concentrate grade is 54.32% and recovery rate is 84.20%.

scholarly journals THE EFFECT OF DEFINITIONS TOWARD STUDENTS’ VOCABULARY

2018 ◽  
Vol 6 (1) ◽  
pp. 34
Author(s):  
Tawali Tawali
Keyword(s):  
Experimental Study ◽  
Alternative Hypothesis ◽  
T Test ◽  
Second Grade ◽  
Control Group ◽  
Second Grade Students ◽  
Post Test ◽  
The Subject ◽  
And Control ◽  
Experimental Group

This research is aimed to find out the effect of definitions toward students’ vocabulary mastery: it was an experimental study at the second grade student of MTs NW Haqqul Yaqin Sayang- sayang. The subject of this research was the second grade of MTs NW Haqqul Yaqin Sayang- sayang.The research was used experimental method with quantitative approach. The population of this research consist of 55 students, and the sample is 29 for experimental group while 26 for control group. The technique of collecting data was used definition for experimental group and matching word with antonym for control group. The data was collected by using post-test only and the data was analyzed by t-test formula. Based on data analysis the mean score of experimental group was 76,4 and control group was 69,23, beside of that standard deviation for experimental group was 114,28 and for control group was 113,09 and the value of t-test was 2,44 and t-table was 2,000. Degree of freedom is 53 with significant level 0,05. It means that the value of t-test was higher than t-table (t-test ˃ t-table). The alternative hypothesis (Ha) was accepted and null hypothesis (Ho) was rejected. Thus, the conclusion of this research was there was an effect of definition toward students’ vocabulary mastery: an experimental study at the second grade students of MTs NW Haqqul Yaqin Sayang-sayang.

scholarly journals A STUDY OF THE EFFECT OF THE PHYTOCHEMICAL CONTENT OF P. AMERICANALEAF ON HEMATOLOGICAL SYSTEM OF ALBINO RATS

2021 ◽  
Vol 9 (04) ◽  
pp. 464-467
Author(s):  
Ngozi a ◽  
◽  
N. Omeke ◽  
Haruna M. Ndahi ◽  
◽  
...  
Keyword(s):  
Adverse Effect ◽  
Experimental Study ◽  
Aqueous Extract ◽  
Leaf Extract ◽  
Control Group ◽  
Albino Rats ◽  
Phytochemical Content ◽  
Other Substances ◽  
And Control ◽  
Experimental Group

Given the medicinal importance of the avocado plant in alternative medicine,the present study aimed to study the effect of the phytochemical content of P. americana leaf extract on the hematological system of albino rats. Albino rats were obtained andclustered into sixgroups,with five rats per groupsimultaneously were assigned experimental and control. The rats in the experimental group were administered with varying doses of the prepared aqueous extract of P. americanawithin the period of the study. The rats in the control group were administered with other substances such as water and feed for the study period.The hematological system of the experimental animal was assessed after the administration of the extract, and it was observed that the aqueous extract of P. americana leaf recorded no significant adverse effect on the hematology system of the experimental study animal.

scholarly journals Efficacy of Normalisation of Advance Care Planning (NACP) for people with chronic diseases in hospital and community settings: a quasi-experimental study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sarah Jeong ◽  
Peter Cleasby ◽  
Se Ok Ohr ◽  
Tomiko Barrett ◽  
Ryan Davey ◽  
...  
Keyword(s):  
Experimental Study ◽  
Chronic Diseases ◽  
Advance Care Planning ◽  
Fixed Effects ◽  
Care Planning ◽  
Community Settings ◽  
Link Type ◽  
Quasi Experimental ◽  
Advance Care ◽  
And Control

Abstract Background Advance Care Planning (ACP) has emerged to improve end-of-life processes and experiences. However, the available evidence presents the gloomy picture of increasing number of older people living with chronic diseases and the mismatch between their preferences for and the actual place of death. The study aimed to investigate the efficacy of normalisation of an Advance Care Planning (NACP) service delivered by specially trained Registered Nurses (RNs) in hospital and community settings. Methods A quasi-experimental study was conducted involving 16 sites (eight hospital and eight community sites) in Australia. Patients who were aged ≥18 years, who had at least one of nine chronic conditions, and who did not have an Advance Care Directive (ACD) were offered the NACP service. ACP was normalised as part of routine service on admission. The intervention, NACP, was a series of facilitated conversations about the components of ACP. The primary outcomes which included the completion of ACDs, and/or appointment of an Enduring Guardian (EG), were assessed in both intervention and control sites at pre and post intervention stages. Numbers of patients who completed an ACD or appointed an EG were described by count (percentage). ACD completion was compared between intervention and control sites using a logistic mixed effects regression model. The model includes fixed effects for treatment group, period, and their interaction, as well as random site level intercepts. Secondary model included potentially confounding variables as covariates, including age, sex and chronic diseases. Results The prevalence of legally binding ACDs in intervention sites has increased from five to 85 (from 0.85% in pre to 17.6% in post), whereas it has slightly decreased from five to 2 (from 1.2% in pre and to 0.49% in post) in control sites (the difference in these changes being statistically significant p < 0.001). ACD completion rate was 3.6% (n = 4) in LHD1 and 1.2% (n = 3) in LHD2 in hospital whereas it was 53% (n = 26) in LHD1 and 80% (n = 52) in LHD2 in community. Conclusions The study demonstrated that NACP service delivered by ACP RNs was effective in increasing completion of ACDs (interaction odds ratio = 50) and was more effective in community than hospital settings. Involvement of various healthcare professionals are warranted to ensure concordance of care. Trial registration The study was retrospectively registered with the Australian New Zealand Clinical Trials Registry (Trial ID: ACTRN12618001627246) on 03/10/2018. The URL of the trial registry record http://www.anzctr.org.au/trial/MyTrial.aspx

Does Dingo Predation or Buffalo Competition Regulate Feral Pig Populations in the Australian Wet-Dry Tropics? An Experimental Study.

1995 ◽  
Vol 22 (1) ◽  
pp. 65 ◽  
Author(s):  
L Corbett
Keyword(s):  
Experimental Study ◽  
Sus Scrofa ◽  
Interference Competition ◽  
Fold Increase ◽  
Bubalus Bubalis ◽  
Northern Australia ◽  
Dry Tropics ◽  
Swamp Buffalo ◽  
And Control ◽  
The Relationship

Dingo (Canis farniliaris dingo) predation on feral pigs (Sus scrofa) in response to experimental changes in prey populations was measured over seven years in the seasonally wet-dry tropics of northern Australia. Following the removal of feral swamp buffalo (Bubalus bubalis) from half of the 614-km*2 study area, the number of pigs doubled and there was a 3-fold increase of pig in dingo diet. The relationship between the functional response of the dingo and pig abundance was negative and significant for both the treatment and control areas. This indicated that dingoes were not regulating the pig population. Instead, dingo predation probably acted in concert with interference competition by buffalo which decreased access to critical subterranean food for pigs during the dry season and thus limited population growth in pigs.

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