Test technique for passive inter-modulation distortion

2013 ◽  
Author(s):  
Li Mingtai ◽  
Wang Zunfeng ◽  
Li Tao
Keyword(s):  
Test Technique ◽  
Inter Modulation Distortion

Peningkatan Kemampuan Berpikir Kritis Peserta Didik Pada Materi Termokimia Di Sma Pekanbaru Melalui Penerapan Strategi Pembelajaran Process Oriented Guided Inquiry Learning (POGIL)

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Maria Erna ◽  
R. Usman Rery ◽  
Wiji Astuti ◽  
Sulismayati
Keyword(s):  
Critical Thinking ◽  
Inquiry Learning ◽  
Guided Inquiry ◽  
Test Technique ◽  
Critical Thinking Ability ◽  
High Category ◽  
Thinking Ability ◽  
Process Oriented ◽  
Academic Year ◽  
Very High

Penelitian ini dilakukan untuk mengetahui peningkatan kemampuan berpikir kritis siswa pada mata pelajaran Termokimia melalui penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) (POGIL) di kelas 11 SMAN 8 Pekanbaru. Penelitian ini menggunakan One Group Pretest-Posttest Design yang diadakan di SMAN 8 Pekanbaru pada tahun akademik 2017/2018. Objek penelitian adalah XI MIA 1 yang terdiri dari 32 siswa. Pengumpulan data siswa menggunakan teknik tes pretest dan posttest. Keberhasilan pembelajaran dalam meningkatkan kemampuan berpikir kritis siswa ditunjukkan oleh peningkatan kriteria berpikir kritis dari hasil pretest dan posttest yang menganalisis persentase skor berpikir kritis. Hasil penelitian menunjukkan bahwa ada peningkatan kemampuan berpikir kritis siswa. Siswa mengalami peningkatan dari kategori berpikir kritis sangat rendah ke kategori sangat tinggi dengan persentase 15,625%, dari kategori rendah ke kategori sangat tinggi adalah 40,625%, dari kategori rata-rata ke kategori sangat tinggi adalah 9,375%, dari kategori sangat rendah hingga kategori tinggi adalah 12,5%, dan dari kategori rendah ke kategori tinggi adalah 21,875%. Berdasarkan analisis data, dapat disimpulkan bahwa penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) mampu meningkatkan kemampuan berpikir kritis siswa pada mata pelajaran Termokimia di SMAN 8 Pekanbaru.   The research was held to determine the improvement of student’s critical thinking ability on Thermochemistry subject through implementation of Process Oriented Guided Inquiry Learning (POGIL) strategy at 11th Grade of SMAN 8 Pekanbaru. This research used One Group Pretest-Posttest Design which held in SMAN 8 Pekanbaru at academic year of 2017/2018. The object of research is XI MIA 1 that consist of 32 students. The data collection of students used test technique which are pretest and posttest. The success of learning in improvement of student’s critical thinking ability is showed by improvement of criteria of critical thinking from pretest and posttest results that analyzed the score percentage of critical thinking. The result of research showed that there was an improvement of student’s critical thinking ability. The students have an increase from the very low category of critical thinking to very high category with percentage of 15,625%, from low category to very high category is 40,625%, from average category to very high category is 9,375%, from very low category to high category is 12,5%, and from low category to high category is 21,875%. Based on data analyze, it can be concluded that implementation of Process Oriented Guided Inquiry Learning (POGIL) strategy is able to improve student’s critical thinking ability on Thermochemistry subject at SMAN 8 Pekanbaru.

UPAYA MENINGKATKAN KOMPETENSI PEDAGOGIK GURU SDN TURUSGEDE DI SEMESTER I TAHUN PELAJARAN 2018/2019 DALAM MEMBUKA DAN MENUTUP PEMBELAJARAN MELALUI SUPERVISI AKADEMIK TEKNIK PENILAIAN DIRI SENDIRI

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Siti Ulfah
Keyword(s):  
Elementary School ◽  
Action Observation ◽  
The Self ◽  
Self Assessment ◽  
Test Technique ◽  
Assessment Technique ◽  
First Semester ◽  
Opening And Closing ◽  
Academic Year ◽  
Learning By Using

The purposes of this reasearch are 1) describing the efforts of increasing the elementary school of Turusgede teachers pedagogic competence at the first semester of 2018/2019 academic year in opening and closing the learning by using the self assessment technique and 2) analysing the increase of the elementary school of Turusgede teachers pedagogic competence at the first semester of 2018/2019 academic year in opening and closing the learning by using the self assessment technique. This research is School Action Research (SAR). This research is taken palce in elementary school of Turusgede, Subdistrict of Rembang, Regency of Rembang. The time of this research is the early-middle first semester of 2018/2019 academic year. The subjects of this research are teachers in the elementary school of Turusgede, Subdistrict of Rembang, Regency of Rembang, consist of twelve teachers. The data of this research is teachers pedagogic competence in opening and closing the learning. The techniques of collecting data are using nontest technique and test technique. The tools of collecting data are using the sheets of observation, camera application on hand phone and the form of self assessment. The technique of analizing data in this research is decriptive comparation. The procedure of this research is using Cycle Model, consist of four steps: planning, action, observation and reflection. Each cycle is going on one week. The results of this research are 1) the academic supervision with self assessment technique is previously sharing the form of self assessment to the subjects of this research, 2) self assessment technique is self assessment according to the next theme and matter, 3) self assessment technique is self assessment after the learning finish and 4) teachers pedagogic competence with self assessment technique is increasing and including good category (B) that according with the result of observation and including very good category (A) that according with the result of self assessment. Key words: Pedagogic, Supervision, Self Assessment Technique.

HUBUNGAN ANTARA MANAJEMEN WAKTU BELAJAR, MOTIVASI BELAJAR, DAN FASILITAS BELAJAR DENGAN PRESTASI BELAJAR MATEMATIKA SISWA SMP KELAS VIII SE-KECAMATAN DANUREJAN YOGYAKARTA

2016 ◽  
Vol 4 (3) ◽  
Author(s):  
Nurita Juliasari ◽  
Benedictus Kusmanto
Keyword(s):  
Time Management ◽  
Hypothesis Test ◽  
Mathematics Learning ◽  
Descriptive Analysis ◽  
Motivation To Learn ◽  
Test Technique ◽  
Learning Achievement ◽  
Learning Time ◽  
8Th Grade ◽  
Major Hypothesis

The purpose of the research was to find out correlate between learn time management, motivation to learn, and learning facilities with mathematics learning achievement on 8th  grade students at the whole district of Danurejan Yogyakarta. The genre of this research is descriptive researchment. The population in this research were all students of 8th grade students at the whole district of Danurejan Yogyakarta with amount 593 students and the samples taken at proportional random sampling with amount 113 students. Data collection method used was a questionannaire and a test technique. Analysis using descriptive analysis of data, multiple regression, and partial correlation. In the major hypothesis test is obtained R = 0,747 and R2 = 0,558 with sig=0,000 < 0,05. Then in the first minor hypothesis test is obtained ry1-23 = 0,443 with         sig=0,000 < 0,05; the second minor hypothesis test is obtained ry2-13 = 0,370 with sig=0,000 < 0,05; and the minor third hypothesis test is obtained ry3-12 = 0,344 with sig=0,000 < 0,05. So there is a positive and significant correlation between learning time management, motivation to learn, and learning facilities with mathematics learning achievement on 8th grade students at the whole district of Danurejan Yogyakarta as collective and partial. It is expected that students care about learning time management, motivation to learn, and learning facilities to  mathematics learning achievement increasingly.

Open Door System and Endogenous Growth in Indian Economy: An Empirical Analysis on the Role of Human Capital and R&D in Explaining Industrial Productivity

2021 ◽  
Vol 46 (1) ◽  
pp. 24-37
Author(s):  
Arjun K. ◽  
Sanjay Kumar ◽  
A. Sankaran ◽  
Mousumi Das
Keyword(s):  
Human Capital ◽  
Exchange Rate ◽  
Real Exchange Rate ◽  
Endogenous Growth ◽  
Value Added ◽  
Capital Formation ◽  
Knowledge Capital ◽  
Test Technique ◽  
Long Run ◽  
The Impact

The present study investigates the impact of human capital, knowledge capital which is a function of human capital, and real exchange rate scenario in explaining long-run industrial total factor productivity (TFP) from 1980 to 2015 on the theoretical basis of the open endogenous growth model. The variables employed in the contemporary study include manufacturing value added (MNVA) as industrial output measure, gross fixed capital formation (GFCF) as a measure of capital and labour input which is measured using employment data. Gross enrolment ratio (GER) is taken as a measure for human capital formation, expenditure on research and development (R&D) as a proxy for knowledge capital, and real exchange rate indicates global economic shocks. The study involves estimating TFP for Industrial Sector during the post-liberalization period by employing Cobb-Douglas production function. The ARDL bounds test technique for cointegration revealed long-run relation among the varying factors studied. The Toda-Yamamoto causality test concluded bi-directional causality running between, R&D expenditure and Industrial TFP which sends a strong signal to the policymakers for a well-framed long-term integrated approach for human & knowledge capital formation which will act as a strong impetus for manufacturing firms to come up in terms of augmenting production and productivity and expanding foreign market horizon. JEL Classification: D24, E2, J24

Indenter misalignment in impression creep test: Uncertainty, correction and recommendation

2021 ◽  
pp. 030932472199765
Author(s):  
Suo Li ◽  
Dean Deng ◽  
Wei Sun
Keyword(s):  
Creep Test ◽  
Vertical Direction ◽  
Steady State Creep ◽  
Impression Creep ◽  
Finite Element Analyses ◽  
Empirical Formulas ◽  
Test Technique ◽  
Creep Properties ◽  
Miniature Specimen ◽  
Specimen Test

The impression creep test (ICT) method, as a miniature specimen test technique, has been used extensively to determine the in-service creep properties of power plant components. However, the experiment results of the ICT can be affected by some uncertainties associated with the inaccuracies of measurement, which have not been studied before. This paper presents some results of finite element analyses, to evaluate the effect of indenter misalignment on the results of the ICT, such as the steady-state creep deformation rate and the conversion parameters. The results obtained have shown that the angular misalignments of the indenter around horizontal directions have a relatively significant influence on the conversion parameters, and the misalignment around vertical direction has a much less significant effect. Empirical formulas were developed for the possible correction of the conversion factors. Finally, some recommendations on the control of the indenter and specimen alignment were given.

Ground Flutter Simulation Test Based on Reduced Order Modeling of Aerodynamics by CFD/CSD Coupling Method

2019 ◽  
Vol 11 (01) ◽  
pp. 1950008
Author(s):  
Binwen Wang ◽  
Xueling Fan
Keyword(s):  
Aerodynamic Force ◽  
Test System ◽  
Simulation Test ◽  
Robust Controller ◽  
Test Technique ◽  
Reduced Order ◽  
Aerodynamic Model ◽  
Flutter Boundary ◽  
Computational Fluid Dynamics Cfd ◽  
Good Agreement

Flutter is an aeroelastic phenomenon that may cause severe damage to aircraft. Traditional flutter evaluation methods have many disadvantages (e.g., complex, costly and time-consuming) which could be overcome by ground flutter test technique. In this study, an unsteady aerodynamic model is obtained using computational fluid dynamics (CFD) code according to the procedure of frequency domain aerodynamic calculation. Then, the genetic algorithm (GA) method is adopted to optimize interpolation points for both excitation and response. Furthermore, the minimum-state method is utilized for rational fitting so as to establish an aerodynamic model in time domain. The aerodynamic force is simulated through exciters and the precision of simulation is guaranteed by multi-input and multi-output robust controller. Finally, ground flutter simulation test system is employed to acquire the flutter boundary through response under a range of air speeds. A good agreement is observed for both velocity and frequency of flutter between the test and modeling results.

scholarly journals Effects of the Oxide Coating Thickness on the Small Flaw Sizing Using an Ultrasonic Test Technique

Coatings ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 69 ◽  
Author(s):  
Xiujuan Miao ◽  
Xiongbing Li ◽  
Hongwei Hu ◽  
Guangjun Gao ◽  
Shuzeng Zhang
Keyword(s):  
Coating Thickness ◽  
Oxide Coating ◽  
Ultrasonic Test ◽  
Test Technique ◽  
Flaw Sizing ◽  
Small Flaw

Pressuremeter Testing of Normally Consolidated Clays—The Effects of Varying Test Technique

1986 ◽  
Vol 2 (1) ◽  
pp. 125-132
Author(s):  
W. F. Anderson ◽  
I. C. Pyrah ◽  
F. Haji-Ali
Keyword(s):  
Test Methods ◽  
Time Dependent ◽  
Clay Soils ◽  
Shear Creep ◽  
Test Technique ◽  
Pressuremeter Test ◽  
Numerical Predictions ◽  
Cylindrical Cavities ◽  
Undrained Conditions ◽  
Insight Into

AbstractAlthough BS 5930:1981 describes both Menard and self-boring pressuremeter tests, little guidance is given on test methods. A number of techniques, both stress controlled and strain controlled, have been used and it has been shown that for clays the test technique has a significant influence on the derived strength and modulus parameters.When a pressuremeter test is carried out in a clay, it is assumed that shearing occurs under undrained conditions. However, in addition to immediate shear strain, some creep and local consolidation will occur in the soil around the expanding borehole. These two phenomena are time-dependent and variations in test technique will affect the test data and hence the derived strength and modulus values.To obtain a better understanding of these effects, pressuremeter tests have been studied both experimentally and numerically. Experimentally, pressuremeter tests have been simulated by expanding cylindrical cavities in samples of three clays prepared with known stress history and the results compared with numerical predictions where the effects of immediate shear, creep and consolidation can be separated. The experimental results compare well with the numerical predictions.This has given a new insight into the behaviour of clay soils during pressuremeter tests. The results indicate that any simple standardization of pressuremeter test technique should be approached with caution.

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