The Use of Surface Static Pressure Data as a Diagnostic Tool in Multistage Compressor Development

1987 ◽  
Vol 109 (1) ◽  
pp. 123-129 ◽  
Author(s):  
H. D. Weingold ◽  
R. F. Behlke
Keyword(s):  
Data Analysis ◽  
Static Pressure ◽  
Development Phase ◽  
Pressure Data ◽  
Flow Angle ◽  
Pressure Distributions ◽  
Analysis Technique ◽  
Multistage Compressor ◽  
Engine Testing ◽  
The Individual

A technique has been developed to analyze static pressure distributions obtained from the surfaces of stators in a multistage compressor to determine incident Mach number and flow angle and the turning and streamtube contraction for the individual stator sections. This data analysis technique permits this nonintrusive type of pressure measurement to be used to optimize the design of stator airfoils during the development phase of a multistage compressor and, in the development of analytic compressor representations, to segregate rotor and stator performance and to improve the modeling of endwall blockage. The value of this technique has been demonstrated in cascade testing of compressor airfoils, in single-stage and three-stage rig testing, and in engine testing.

scholarly journals PENGARUH LINGKUNGAN KERJA DAN KOMPETENSI INDIVIDU TERHADAP KINERJA PEGAWAI PADA PT. PERKEBUNAN SUMATERA UTARA

2019 ◽  
pp. 44-59
Author(s):  
Agus Susanto
Keyword(s):  
Data Analysis ◽  
Linear Regression ◽  
Data Collection ◽  
Employee Performance ◽  
Working Environment ◽  
Linear Regression Equation ◽  
Performance Variation ◽  
Analysis Technique ◽  
Study Population ◽  
The Individual

The purpose of this study was to determine the influence of the working environment and competence of individuals to employee performance at PT. North Sumatera Plantations. The study population was all employees of the company as much as 157 people with a sample of 43 people. Data collection techniques used were questionnaires and documentation. The data analysis technique used is multiple linear regression equation with the F test and t. From the analysis and discussion is obtained that the working environment and competence of individuals simultaneously and partially influenced the performance of employees at PT. North Sumatera Plantations. Employee performance variation can be explained by the working environment and the individual competence of 86.5 percent.

scholarly journals PENGEMBANGAN MODUL FISIKA BERBASIS KONTEKSTUAL MATERI DINAMIKA PARTIKEL

2021 ◽  
Vol 9 (1) ◽  
pp. 44-52
Author(s):  
MARDIANA MARDIANA ◽  
YUSUF BUNGKANG
Keyword(s):  
Data Analysis ◽  
Product Design ◽  
Field Research ◽  
Test Design ◽  
Particle Dynamic ◽  
Development Phase ◽  
Descriptive Data ◽  
Analysis Technique ◽  
Post Test ◽  
Simple Language

This reserch is a research and development with the aim of developing Contextual-Based Physics Module on Particle Dynamic to Improve Learning Achievement of Students Grade X of SMA Negeri 5 Jayapura. The total number samples of this research is 32 students of SMA Negeri 5 Jayapura grade X, using one group pre-test post-test design with percentage descriptive data analysis technique to know the feasibility of the module. The research shows that: 1) the development of module with collecting information phase through bibliography research and field research, product design includes draft writing, design validating, and product design  revising, and development phase consists of validating and trial, 2) the feasibility of the module compiled based on material validator resulted on average of 92% with feasible category and students response category of 88% with feasible category, 3) there is progress of achievement of studens grade X with learning using contextual-based physic module in particle dynamic with n-Gain RPP1 0,52, RPP2 0,58, RPP3 0,61, and the average is 0,57 medium category, and 4) the strengths of contextual-based physics module are: simple language used, providing material with contextual illustrations and examples, and equipped with guidance manual that eases the students to do individual learning

Aerodynamic Performance of Small Turbocharger Compressors

2007 ◽  
Author(s):  
S. Shaaban ◽  
J. Seume
Keyword(s):  
Experimental Data ◽  
Static Pressure ◽  
Aerodynamic Performance ◽  
Radial Compressor ◽  
Static Pressure Distribution ◽  
Pressure Distributions ◽  
1D Model ◽  
Loss Coefficients ◽  
The Individual ◽  
Good Agreement

Automotive turbocharger compressors are characterized by small dimensions. These small dimensions make detailed measurements of the flow field inside the compressor very challenging. However, it is very important to investigate and understand the aerodynamic performance of these machines in order to enhance the ability to improve their performance. The present paper aims at investigating the aerodynamic performance of the individual compressor components and the interaction between these components. The aerodynamic performance of a GT1749V 70 Trim turbocharger compressor is investigated with particular attention to measurements of the static pressure distribution at the inlet and outlet of the diffuser. A 1D-model is developed to solve the conservation equations along the streamlines inside the diffuser with the measured static pressure distributions as boundary conditions. The loss coefficients of the impeller, the diffuser, and the volute as well as the slip factor of the impeller are estimated from the experimental data with the help of the 1D-model developed in the present work. The model is also validated using available experimental data from a large radial compressor and shows a good agreement with the experimental results.

scholarly journals Perbedaan Coping Stress Penderita Kanker Ditinjau Dari Jenis Kelamin Di RSUP H. Adam Malik Medan

2017 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Ade Ari Isnainy ◽  
Laili Alfita
Keyword(s):  
Data Analysis ◽  
Cancer Patients ◽  
Guttman Scale ◽  
Male And Female ◽  
Analysis Technique ◽  
Female Cancer Patients ◽  
The Difference ◽  
Conducting Research ◽  
The Individual ◽  
Individual Effort

<h1>Coping stress is an individual effort to reduce, tolerate, or overcome the stress caused by a source that is considered to burden the individual. This study aims to see differences in coping stress of cancer patients of men and women in RSUP H. Adam Malik Medan. Assuming that women's coping stress is higher than men, which means women are more able to clutch than men. The subjects of this study were patients with stage 3 and 4 cancer who underwent inpatient at RSUP H. Adam Malik Medan. This research is based on Guttman scale method which consists of 2 coping stress strategies that are problem focused coping and emotion focused coping. The data analysis technique used in this research used 1 lane variance analysis with F = 12,087 and coefisisen significant 0,002(p &lt;0,05) . Based on the results of data analysis performed, then obtained the result that there are differences in coping stress male and female cancer, where, coping stress in men with cancer is in the low category, because the hypothetical mean 30 is greater than the empirical mean (28.7333) where the difference is less SD value (10,738). While coping stress in women with cancer is in the high category, because the hypothetical mean (30) is less than the empirical mean (57,333), where the difference exceeds the SD (8,208). This means that the phenomenon seen by the researchers in accordance with the data obtained during conducting research, which from this research is known that coping stress in women with cancer expressed high. This means the proposed hypothesis reads that there is a difference in coping stress in male and female cancer patients with the assumption that women are more able to clutch than men are accepted.</h1>

Pengaruh Pengembangan Karir dan Penempatan Kerja Terhadap Prestasi Kerja Karyawan pada PDAM Tirtanadi Provinsi Sumatera Utara

MBIA ◽  
2019 ◽  
Vol 17 (3) ◽  
pp. 17-24
Author(s):  
Cut Ermiati ◽  
Dita Amanah ◽  
Dedy Ansari Harahap ◽  
Fitriani Tanjung
Keyword(s):  
Data Analysis ◽  
Career Development ◽  
Linear Regression ◽  
Work Performance ◽  
Total Population ◽  
Employee Performance ◽  
Work Placement ◽  
Analysis Technique ◽  
Calculation Results ◽  
North Sumatra

This study aims to determine the effect of career development and work placement on employee work performance at PDAM Tirtanadi, North Sumatra Province. The population in this study were all employees per division, amounting to 182 employees. From the total population can be determined the number of samples in this study amounted to 65 people. The data analysis technique used is the t-test, f-test, multiple linear regression and determinant coefficient test using SPSS 22. From the calculation results using SPSS shows that there is an influence of career development on employee work performance, there is the influence of work placement on employee performance and there is the influence of career development and work placement on employee performance.

PENERAPAN SUPERVISI AKADEMI UNTUK MENINGKATKAN MOTIVASI BERPRESTASI GURU SD NEGERI 009 TELUK PAUH KECAMATAN CIRENTI

2018 ◽  
Vol 2 (5) ◽  
pp. 820
Author(s):  
Raja Revolin Ismail
Keyword(s):  
Data Analysis ◽  
Action Research ◽  
Achievement Motivation ◽  
Average Data ◽  
Physical Data ◽  
Data Analysis Technique ◽  
Analysis Technique

This research is a school action research that aims to improve teacher achievement through academicsupervision. This research was conducted at SD Negeri 009 Teluk Pauh, Cirenti District. The subjects of thisstudy were teachers of SD Negeri 009 Teluk Pauh, Cirenti Subdistrict with a total number of 12 people,consisting of 4 men and 8 women. This research was carried out in two cycles carried out based on the stages ofplanning, implementation and reflection. The data used is physical data. The average data analysis technique isdescriptive method. The results showed that teacher achievement motivation in the first cycle was 60.1% withgood categories and the cycle increased to 81.6% with very good categories.

TEACHING READING COMPREHENSION OF NARRATIVE TEXT TO THE TENTH GRADE STUDENTS

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Emi Br Bukit ◽  
Berlin Sibarani ◽  
Rika Rika
Keyword(s):  
Qualitative Research ◽  
Reading Comprehension ◽  
Data Analysis ◽  
Narrative Text ◽  
Teaching Reading ◽  
Qualitative Research Design ◽  
Analysis Technique ◽  
Tenth Grade ◽  
The Subject ◽  
Academic Year

This study aims at describing how the teachers teach reading comprehension of narrative text to the tenth grade students in Sibolangit and revealing the underlying reasons of why do they do that way. This study was conducted by using qualitative research design. The subject of this study were two english teachers who taught at tenth grade students of two SMA in Sibolangit they are : SMA Negeri  1 Sibolangit  and SMA RK Deli Murni Bandar Baru in academic year 2016/ 2017. The data were analyzed by using Miles and Huberman data analysis technique. The  technique of collecting the data was recorded from the classroom process in teaching reading comprehension of narrative text. The findings of the study show that most of teachers’ ways are not yet focusing on teaching reading comprehension but rather focusing teaching the knowledge of genre. The underlying reason of the teachers’ ways in teaching reading comprehension did not facilitate reading comprehension. It was due to the misperception of the concept of teaching reading comprehension.  Keywords : Teaching,Reading Comprehension,Narrative Text.

PENGARUH HARGA DAN BRAND TRUST TERHADAP KEPUTUSAN PEMBELIAN OPPO SMARTPHONE (Studi kasus pada OPPO Store, Sinergy Celular Medan)

2019 ◽  
Vol 14 (1) ◽  
pp. 17
Author(s):  
Andi S Tarigan ◽  
Zulkarnaian Siregar
Keyword(s):  
Data Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Coefficient Of Determination ◽  
Purchase Decision ◽  
Brand Trust ◽  
Significance Level ◽  
Research Hypothesis ◽  
Analysis Technique ◽  
The Relationship

AbstrakPenelitian ini bertujuan untuk mengetahui Pengaruh Harga dan Brand Trust Terhadap Keputusan Pembelian pada Sinergy Celular Medan.Sampel dalam penelitian ini adalah seluruh pengunjung Sinergy Celular Medan sebanyak 77 orang.Teknik pengumpulan data yang digunakan adalah melalui kuesioner (angket) yaitu dengan cara menyebarkan kuesioner kepada sampel (responden) dan mengumpulkannya kembali. Teknik analisis data yang digunakan adalah Regresi Linear Berganda.Sebelum data diregresikan maka terlebih dahulu di uji keterkaitannya antara variabel, datanya diuji menggunakan uji normalitas data, multikolinearitas, dan heterokedastisitas.Serta untuk mengetahui kontribusi faktor Harga dan Brand TrustTerhadap Keputusan Pembelian digunakan rumus Koefisien Determinasi (R2). Hipotesis penelitian diterima apabila t hitung >  t tabel dengan tingkat signifikansi 0,1. Nilai t tabel dalam penelitian ini 1,993. Nilai t hitung variabel X1 sebesar 2,107 t hitung lebih besar dari t tabel maka hipotesis di terima, nilai t hitung variabel X2   sebesar 3,405 t hitung lebih besar dari t tabel maka hipotesis di terima. Kata kunci: Harga, Brand Trust, Keputusan Pembelian AbstractThis study aims to determine the Influence of Price and Brand Trust on Purchasing Decision at Sinergy Celular Medan. The sample in this study is all visitors Sinergy Celular Medan as many as 77 people.Data collection technique used is through questionnaire (questionnaire) that is by distributing questionnaires to the sample (respondent) and collect it back. Data analysis technique used is Multiple Linear Regression. Before the data is diregresikan then first in the test the relationship between variables, the data tested using the test of data normality, multicollinearity, and heterokedastisitas. And to know the contribution of price factors and Brand Trust Against Purchase Decision is used the formula Coefficient of Determination (R2). Research hypothesis accepted if t arithmetic> t table with significance level 0,1. The value of t table in this study is 1,993. Value t arithmetic variable X1 of 2.107 t arithmetic greater than t table then the hypothesis received, the value of t arithmetic variable X2 of 3.405 t arithmetic greater than t table then the hypothesis received. Keywords: Price, Brand Trust, Purchase Decision

Mean velocity and static pressure distributions of a circular jet

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 196-197
Author(s):  
M. T. Islam ◽  
M. A. T. Ali
Keyword(s):  
Static Pressure ◽  
Mean Velocity ◽  
Pressure Distributions

Peranan Ketua Pengurus dan Manajer Dalam Penyusunan dan Penerapan Laporan Keuangan Berbasis SAK ETAP Pada Koperasi di Kota Palembang

2019 ◽  
Vol 14 (2) ◽  
pp. 119
Author(s):  
Riza Syahputera ◽  
Martha Rianty
Keyword(s):  
Data Analysis ◽  
Sampling Technique ◽  
Financial Statements ◽  
Significant Positive Effect ◽  
Analysis Technique ◽  
Regression Test ◽  
Using Data ◽  
The City ◽  
Positive Effect

AbstractThis study aims to determine the effect of the role of the Chairperson and Cooperative Manager in the preparation and application of Financial Statements based on SAK ETAP in cooperatives in the city of Palembang. This research is a quantitative study using data obtained from questionnaires and measured using a Likert scale. The sampling technique used is purposive sampling. The sample used in this study was the Chairperson of the cooperative and the manager of the cooperative in the city of Palembang. The cooperatives studied were 203 cooperatives. The data analysis technique used is multiple linear regression test. The results showed that the role of cooperative leaders and managers had a significant positive effect on the preparation and application of SAK ETAP-based financial statements.Keywords : chairman, manager, SAK ETAP, cooperative

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