Transient Response Performance Test on Aftermarket Motorcycle Rear Suspension in Indonesia

Modification parts are found in Indonesia, one of which is suspension. This paper proves which after-market suspension has the best performance. These three suspensions were tested with a transient response with a test instrument that has an excitation height of 30 mm with a shaft rotational speed of 322 rpm. The observed responses are displacement and settling time. The test results without the addition of mass obtained a displacement of 25 mm for Aspira, 39 mm for AHM and 39 mm for Combiz. The addition of 30 kg mass resulted in 29 mm for Aspira, 38 mm for AHM and 23 mm for Combiz. Settling time without adding mass 1 s for Aspira and 1.2 s for AHM and 0.9 s for Combiz. With the addition of 30 kg mass obtained settling time of 1.3 s for Aspira, 1 s for AHM and 0.7 s for Combiz.

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Performance Test Results of the Supercritical CO2 Compressor for a New Gas Turbine Generating System

18th International Conference on Nuclear Engineering: Volume 6 ◽

10.1115/icone18-29371 ◽

2010 ◽

Cited By ~ 1

Author(s):

Masanori Aritomi ◽

Takao Ishizuka ◽

Yasushi Muto ◽

Nobuyoshi Tsuzuki

Keyword(s):

Flow Rate ◽

Centrifugal Compressor ◽

Rotational Speed ◽

Gas Turbines ◽

Supercritical Co2 ◽

Performance Test ◽

Permanent Magnets ◽

Pressure Ratio ◽

Test Results ◽

Institute Of Technology

Supercritical carbon dioxide (S-CO2) gas turbines can generate power at high cycle thermal efficiency, even at modest temperatures of 500–550°C, because of their markedly reduced compressor work near the critical point. Furthermore, the reaction between Na and CO2 is milder than that between H2O and Na. A more reliable and economically advantageous power generation system could be achieved by coupling with a sodium-cooled fast reactor. At Tokyo Institute of Technology, numerous development projects have been conducted for development of this system in cooperation with JAEA. Supercritical CO2 compressor performance test results are given as described herein. A centrifugal compressor is chosen for the performance test. Main compressor parts are stored in a pressure vessel. Maximum design conditions of the supercritical CO2 test apparatus are pressure of 11 MPa, temperature of 150°C, the flow rate of 6 kg/s and rotational speed of 24,000 rpm. The centrifugal compressor has an electric motor with permanent magnets on the rotor surface, with speed control by an inverter up to 24,000 rpm, a rotor shaft for the impeller, and a motor supported by gas bearings. Different compressor design points are examined using impellers of three kinds; test data are obtained using those impellers under steady state conditions with changing pressure, temperature, flow rate, and compressor rotor speed. The pressure ratio (compressor outlet pressure/inlet pressure) is obtained with the function of compressor rotational speed and the fluid flow rate. The data cover a broad region from sub-critical to supercritical pressure. Such data were obtained for the first time. No unstable phenomenon was observed in the area where the CO2 properties change sharply. Data of the pressure ratio vs. flow rate were coincident with the fundamental compressor theory.

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PENGEMBANGAN INSTRUMEN ASESMEN KINERJA DASAR TATA RIAS

Jurnal Pendidikan Teknologi dan Kejuruan ◽

10.23887/jptk-undiksha.v11i2.4081 ◽

2014 ◽

Vol 11 (2) ◽

Author(s):

I Gede Sudirtha

Keyword(s):

Performance Test ◽

Research Data ◽

Assessment Instrument ◽

Assessment Process ◽

Development Research ◽

Validity And Reliability ◽

Test Instrument ◽

Scoring Rubrics ◽

Data Collection Instrument ◽

Empirical Tests

This study aims to develop a performance assessment instrument for Make up Training Subject in Beauty Education Program by appropriate validity and reliability procedure in thedevelopment of the assessment instrument as the assessment process and products. Thisresearch is a development research (R&D). The research focuses on the development ofassessment instrument for Makeup Training Subject. The aspects of research, data sources, techniques and instruments/data collection instrument, and validation and reliability of theinstrument used in the study conducted by interview, observation, and literature and documents.The data of this study is quantitative data, which was statistically analyzed due to relevant empirical testing (validation of instruments) that includes testing and content validity andinternal validity. Descriptive analyzes were undertaken to describe the research data. The results showed: 1) The design of the instrument Makeup Training Subject are developed through theneeds analysis. It is done through literature review and study of the course competencies byengaging a team of researchers. This study resulted in the instrument guidelines and assessment instrument completed with its scoring rubrics. The instrument comprising: a step of validityassessment is done through the stages: experts judgment, empirical tests to prove the validityand reliability of the instruments assessment. All the performance test instrument developed is

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PENGARUH MODEL PEMBELAJARAN KELILING KELOMPOK (ROUND CLUB) TERHADAP KETERAMPILAN MENULIS LAPORAN PERJALANAN SISWA KELAS V SDN 01 NAGARI BUKIK SIKUMPA

Jurnal Cerdas Proklamator ◽

10.37301/jcp.v6i2.16856 ◽

2020 ◽

Author(s):

Wirda Linda

Keyword(s):

Standard Deviation ◽

Performance Test ◽

Writing Skills ◽

Learning Model ◽

Homogeneity Test ◽

Test Results ◽

Class V ◽

Average Value ◽

Normality Test ◽

Lecture Method

This research is motivated by the low desire of students in writing travel reports. The lack of students' knowledge of the report concept, the lack of students' knowledge of the 5W + 1H report points of good and correct language, the lack of students' knowledge of the spatial, time and topic pattern and not yet reached KKM 75. The method used by the teacher has not been interesting, lecture method. The purpose of this study is to describe the skills of writing travel reports by using Round Club learning model which is viewed from the aspect of understanding the report concept, the use of 5W +1H report points, the spatial, time, and topic pattern.The population of this study is the students of class V Lessons Year 2017/2018 which amounted to 2 classes with the number 80. The sample of research as much as two classes taken by the sample of propotional.Class V.1 as experimental class and class V.2 as control class. The research instrument used is performance test. Provide an assessment by specifying the subject of the 5W + 1H report, as well as the spatial, time and topic pattern. Data were analyzed by 't' test by first testing normality, homogeneity, and hypothesis testing.The results showed that the average control class 68 with more than enough qualifications with standard deviation 16.96. 83 experimental class with good qualification and standard deviation of 15.42 and there is a significant influence on the result of writing skill of class V SDN 01 Nagari Bukik SikumpaSubdistrict, Lima Puluh Kota. This is evidenced by the average value of writing skills in the experiment class higher than the average value in the control class. Normality test results indicate that the two sample classes of Lo values in the control class -0.2141 are smaller than the normal 0.190 Lt distributed. Homogeneity test results that the variation of this study is homogeneous at a real level of 0.05, because Ftable 2.16 > Fhitung 1.21 and the results of data analysis then obtained = 2.78 > 1.70 t table, so H0 rejected and H1 accepted. It can be concluded that there is Influence. Using Learning Model of Student Group Writing Skills Travel Report of students of class V SDN 01 Nagari Bukik Sikumpa Subdistrict, Kabupaten Lima Puluh Kota.KeyWords: model pembelajaran round club, menulis laporan perjalanan.

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Physical and performance characteristics related to starter status, position, and division in Japanese collegiate American-football players

Isokinetics and Exercise Science ◽

10.3233/ies-200222 ◽

2021 ◽

pp. 1-8

Author(s):

Junta Iguchi ◽

Minoru Matsunami ◽

Tatsuya Hojo ◽

Yoshihiko Fujisawa ◽

Kenji Kuzuhara ◽

...

Keyword(s):

Performance Test ◽

Vertical Jump ◽

American Football ◽

Football Players ◽

Jump Height ◽

Test Results ◽

Repetition Maximum ◽

Vertical Jump Height ◽

Division 1 ◽

And Performance

BACKGROUND: Few studies have investigated the variations in body composition and performance in Japanese collegiate American-football players. OBJECTIVE: To clarify what characterizes competitors at the highest levels – in the top division or on the starting lineup – we compared players’ body compositions and performance test results. METHODS: This study included 172 players. Each player’s body composition and performance (one-repetition maximum bench press, one-repetition maximum back squat, and vertical jump height) were measured; power was estimated from vertical jump height and body weight. Players were compared according to status (starter vs. non-starter), position (skill vs. linemen), and division (1 vs. 2). Regression analysis was performed to determine characteristics for being a starter. RESULTS: Players in higher divisions and who were starters were stronger and had more power, greater body size, and better performance test results. Players in skill positions were relatively stronger than those in linemen positions. Vertical jump height was a significant predictor of being a starter in Division 1. CONCLUSION: Power and vertical jump may be a deciding factor for playing as a starter or in a higher division.

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500 kW supercritical CO2 power generation system for waste heat recovery: system design and compressor performance test results

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2021.117028 ◽

2021 ◽

pp. 117028

Author(s):

Jae Eun Cha ◽

Joo Hyun Park ◽

Gibbeum Lee ◽

Han Seo ◽

Sunil Lee ◽

...

Keyword(s):

Heat Recovery ◽

Waste Heat Recovery ◽

Performance Test ◽

Waste Heat ◽

Test Results ◽

Generation System ◽

Waste Heat Recovery System ◽

Recovery System ◽

Compressor Performance ◽

Power Generation System

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Effects of response quantisation on the accuracy of transient response test results

IEE Proceedings - Circuits Devices and Systems ◽

10.1049/ip-cds:19952107 ◽

1995 ◽

Vol 142 (5) ◽

pp. 334 ◽

Cited By ~ 2

Author(s):

I.C. Butler ◽

D. Taylor ◽

T.I. Pritchard

Keyword(s):

Transient Response ◽

Test Results ◽

Response Test

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Experiment and Optimization of High-Efficiency Mechanical Separation of Peanut Seedlings and Residual Film Based on Suspension Velocity

Transactions of the ASABE ◽

10.13031/trans.14512 ◽

2021 ◽

Vol 64 (4) ◽

pp. 1381-1389

Author(s):

Fengwei Gu ◽

Meng Yang ◽

Zhichao Hu ◽

Yanhua Zhang ◽

Chong Zhang ◽

...

Keyword(s):

Moisture Content ◽

Rotational Speed ◽

Loss Rate ◽

Removal Rate ◽

Performance Tests ◽

Test Results ◽

Material Loss ◽

Validation Test ◽

Residual Film ◽

Forage Utilization

HighlightsAn efficient method for separating peanut seedlings and residual film harvested from film-mulched peanut was proposed, and the mechanism was optimized.The relationships between the suspension velocity and moisture content of different shredded materials were studied.Four-factor, three-level Box-Behnken experiments were carried out and analyzed, and the optimal parameter combination was determined.A validation test was carried out to verify the rationality and accuracy of the optimized regression model.Abstract. To address the problems of lower residual film removal and higher material loss in the forage utilization of peanut seedlings wrapped in residual film, this study explored the relationships between the suspension velocity and moisture content of different shredded materials derived from peanut seedlings and conducted performance tests and parameter optimization for a machine that uses peanut seedlings as forage material. Four-factor, three-level Box-Behnken experiments were designed using the rotational speeds of the shredding shaft, upper fans, and lower fans and the frequency of the vibrating sieve as test factors, and using the residual film removal rate and material loss rate as response values. The test results indicated that the suspension velocity of the shredded materials showed a quadratic relationship with moisture content. The performance tests showed that the significance sequence of the test factors for the residual film removal rate was: rotational speed of the lower fans, rotational speed of the upper fans, rotational speed of the shredding shaft, and frequency of the vibrating sieve. The significance sequence for the material loss rate was: rotational speed of the lower fans, rotational speed of the shredding shaft, frequency of the vibrating sieve, and rotational speed of the upper fans. The parameter optimization and validation test showed that the residual film removal rate was 92.71% and the material loss rate was 8.19% when the rotational speeds of the shredding shaft, upper fans, and lower fans were 1650, 770, and 665 rpm, respectively, and the frequency of the vibrating sieve was 4 Hz. The relative errors between the validation test results and the predicted values from the regression models were less than 3%, which suggests that the regression models are reliable. This study provides a reference for the forage utilization of peanut seedlings harvested from film-mulched peanut and provides a reference for determining the optimal working parameters of forage processing machines. Keywords: Agricultural machinery, Box-Behnken experiment, Optimization, Peanut film-seedling separation, Suspension velocity.

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Study on Conventional Domed Bursting Disc Material and Burst Pressure Test

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.690-693.2371 ◽

2013 ◽

Vol 690-693 ◽

pp. 2371-2378

Author(s):

Wei Pu Xu ◽

Yi Ting Liu

Keyword(s):

Stainless Steel ◽

Tensile Test ◽

316L Stainless Steel ◽

Performance Test ◽

Test Method ◽

Burst Pressure ◽

Test Results ◽

Manufacturing Method ◽

Pressure Test ◽

Disc Material

A brief overview is given in the conventional domed bursting disc structure and manufacturing method. 316L stainless steel as a template is selected. With the investigation on bursting disc material tensile test method, the test results are summarized,also the burst results of disc burst pressure in different sizes. With the help of bursting disc material performance test and bursting disc burst pressure test of 316L , the test results provide a reference for other types of bursting disc.

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