scholarly journals ANALISA PERBANDINGAN PENGGUNAAN PEMINDAH TENAGA BERJENIS TIMING BELT DAN RANTAI DENGAN VARIASI PUTARAN MESIN TERHADAP TORSI DAN DAYA KENDARAAN PADA MOTOR VIXION TAHUN 2009

2017 ◽  
Vol 5 (2) ◽  
Author(s):  
I Wayan Dalem Mahayana ◽  
Nyoman Arya Wigraha ◽  
Gede Widayana
Keyword(s):  
T Test ◽  
Test Results ◽  
Power Transfer ◽  
Test Analysis ◽  
Test Parameters ◽  
Timing Belt ◽  
The Difference ◽  
Graph Form ◽  
Better Than ◽  
Engine Power

Sistem pemindah tenaga merupakan suatu system yang berfungsi untuk meneruskan tenaga mesin sampai ke roda. Tujuan dari penelitian ini adalah untuk mengetahui perbandingan torsi pada motor vixion tahun 2009 150cc dengan penggunaan pemindah tenaga berjenis timing belt dengan rantai dan untuk mengetahui perbandingan daya pada motor vixion tahun 2009 150cc dengan penggunaan pemindah tenaga berjenis timing belt dengan rantai. Metode yang digunakan dalam penelitian ini adalah eksperimen dengan menggunakan parameter uji Dynotest Sport Device 3.8. Dari hasil pengujian dari rpm 4500 sampai rpm 9500 dengan kelipatan 500 rpm torsi yang dihasilkan dapat dirata – ratakan menjadi 8.685455 N.m pada penggunaan rantai dan 9.09 N.m pada penggunaan timing belt. Dan dari hasil pengujian dari rpm 4500 sampai rpm 9500 dengan kelipatan 500 rpm daya yang dihasilkan dapat dirata – ratakan menjadi 8.586364 HP pada penggunaan rantai dan 8.973636 HP pada penggunaan timing belt. Data yang didapat diolah menggunakan SPSS 17.0 dengan analisa paired sampel t-test dengan membandingkan data daya yang disalurkan rantai dengan daya yang disalurkan timing belt dan membandingkan torsi yang disalurkan rantai dengan torsi yang disalurkan timing belt dimana hasil penelitian ini disajikan dalam bentuk tabel dan grafik. Dan dapat disimpulkan bahwa penggunaan timing belt dapat meneruskan daya dan torsi lebih baik dari rantai dan perbedaannya dinyatakan signifikanKata Kunci : pemindah tenaga, daya, torsi, rantai, timing belt Power transfer system is a system that serves to continue the engine power to the wheels. The purpose of this research is to know the ratio of torsi to motorcycle vixion in 2009 150cc with the use of power transfer manifold timing belt with chain and to know the power ratio in motorcycle vixion year 2009 150cc with the use of power transfer manifold timing belt with chain. The method used in this research is an experiment using Dynotest Sport Device 3.8 test parameters. From the test results from 4500 rpm to 9500 rpm with a multiple of 500 rpm torsi can be averaged to 8.685455 N.m on the use of chains and 9.09 N.m on the use of timing belt. And from the test results from 4500 rpm to 9500 rpm with a multiple of 500 rpm the power generated can be averaged to 8.586364 HP on the use of chains and 8.973636 HP on the use of timing belt. The data obtained was processed using SPSS 17.0 with paired sample t-test analysis by comparing power data channeled by power channeled timing belt and compare torsi channeled by torsi which channeled timing belt where the result of this research is presented in table and graph form. And it can be concluded that the use of timing belt can continue power and torsi better than chain and the difference is significantkeyword : Transfer of power, power, torque, chain, timing belt

scholarly journals Perbedaan Pengaruh Model Latihan Konsentrasi Dan Tanpa Model Latihan Konsentrasi Terhadap Peningkatan Kemampuan Shooting Game Atlet Petanque Undikma

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Muhammad Ridwan Lubis ◽  
Andi Gilang Permadi
Keyword(s):  
Experimental Method ◽  
Training Model ◽  
T Test ◽  
Test Analysis ◽  
Ability Test ◽  
Purposive Sampling ◽  
Average Value ◽  
The Difference ◽  
Better Than

This research is motivated by the inconsistency in the shooting ability of athletes in shooting games in Petanque sports, both at the regional and national levels. This study aims to determine the effect of the concentration training model on the improvement of the shooting game ability of Undikma Petanque athletes. This study used an experimental method with the design of "two group pretest posttest design". The instruments used for the shooting ability test were the shooting station numbers 1, 2, 3, 4, and 5 with a distance of 6 meters, 7 meters, 8 meters, and 9 meters. The subjects in this study were 14 Undikma Petanque athletes. Samples were taken from the purposive sampling. Based on the results of the t-test analysis showed the same significant results between the concentration training model and without concentration training. However, the concentration training model results are better than without the concentration training model seen with the average value of shooting using the pretest concentration training model results of 4.71 increased by 13.00. The amount of increase was 8.28. Without the concentration training model, the initial pretest average result was 3.42 and increased to 10.00. The amount of increase was 6.57. The difference in the average shooting game result increment with the concentration training model, and without the concentration training model is 1.71.

scholarly journals Perbedaan Pengaruh Latihan Konsentrasi Dan Latihan Koordinasi Terhadap Peningkatan Kemampuan Shooting Game Atlet Petanque Undikma

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Muhammad Ridwan Lubis ◽  
Andi Gilang Permadi
Keyword(s):  
Experimental Method ◽  
Sampling Technique ◽  
T Test ◽  
Test Analysis ◽  
Ability Test ◽  
Purposive Sampling ◽  
Average Value ◽  
Coordination Training ◽  
The Difference ◽  
Better Than

This research is motivated by the inconsistency of the shooting ability of athletes in shooting games in Petanque sports, both at the regional and national levels. This study aims to determine the effect of concentration training and coordination training on the improvement of the shooting game ability of Undikma petanque athletes. This study used an experimental method with the design of "two group pretest posttest design". The research instrument used was a shooting ability test with shooting stations 1, 2, 3, 4, and 5 with a distance of 6 meters, 7 meters, 8 meters, and 9 meters. The sample in this study were 14 Undikma Petanque athletes. Sampling using purposive sampling technique. Based on the results of the t-test analysis showed the same significant results between concentration training and coordination training. However, the result of the concentration exercise was better than the coordination exercise. It was seen that the average value of shooting using the pretest result of concentration training was 4.71 which increased by 13.00. The amount of increase was 8.28. The coordination exercise, which was originally the pretest average result of 3.42 increased to 10.00. The amount of increase was 6.57. The difference in the average result of shooting game improvement with concentration training and coordination training is 1.71.

scholarly journals PERBEDAAN PENGARUH LATIHAN IMAGERY DAN TANPA LATIHAN IMAGERY TERHADAP PENINGKATAN KEMAMPUAN SHOOTING GAME ATLET PETANQUE UNDIKMA

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Muhammad Ridwan Lubis ◽  
Andi Gilang Permadi
Keyword(s):  
Experimental Method ◽  
T Test ◽  
Pretest Score ◽  
Average Increase ◽  
Test Analysis ◽  
Purposive Sampling ◽  
Average Value ◽  
Imagery Training ◽  
The Difference ◽  
Better Than

This research is motivated by the inconsistency in the shooting ability of athletes in shooting game matches in the game of petanque sports both at the regional and national levels. This study aims to determine the effect of imagery training and concentration on improving the shooting abilities of Undikma petanque athletes. This study uses an experimental method with the "two group pretest posttest design" design. The instrument used for the test of shooting ability is the shooting station number 1, 2, 3, 4, and 5 with a distance of 6 meters, 7 meters, 8 meters and 9 meters. The subjects in this study were Undikma petanque athletes, amounting to 14 people. Samples taken from the results of purposive sampling. Based on the results of t-test analysis showed the same significant results between imagery exercises and without imagery exercises. But imagery training results are better than without imagery exercises seen with the average value of shooting using imagery exercises 4.71 pretest results increased by 13.00. The amount of increase was 8.28. Without imagery training, the initial pretest score of 3.42 increased to 10.00. The amount of increase is 6.57. The difference in the average increase in shooting results with imagery training, and without imagery training is 1.71.

Influence of Collagen Status on Microstructures of Porous Collagen/TCP Composites

2007 ◽  
Vol 330-332 ◽  
pp. 495-498
Author(s):  
Chao Zou ◽  
Wen Jian Weng ◽  
Xu Liang Deng ◽  
Kui Cheng ◽  
Pi Yi Du ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Cell Growth ◽  
Tricalcium Phosphate ◽  
Freeze Drying ◽  
Alkali Treatment ◽  
Test Results ◽  
Collagen Matrices ◽  
The Difference ◽  
Porous Composites ◽  
Better Than

Two starting collagens, sponge and floc collagen, were used to prepare collagen/tricalcium phosphate (TCP) composites. The resulting composites were porous and had 200μm pore size. However, there was a difference in the microstructure of the pore walls for the composites derived from the two collagens, the pore walls in sponge collagen/TCP composite were still porous and had 200 nm micropores size, TCP particles were trapped in collagen matrices. While floc collagen/TCP composite had smooth and dense walls in which TCP particles were embedded. The difference could be attributed to the starting collagen with different status. Sponge collagen has a soft structure, which easily becomes disassembled fibrils during alkali treatment, the disassembled fibrils are integrated again to form a dense morphology for pore walls after freeze-drying. While floc collagen has already a low disassembly degree, the alkali treatment could not be able to separate the fibrils, this remains as micropores in pore walls after freeze-drying. Both porous composites are significant in bone tissue engineering or regeneration. MTT test results showed the two composites had good cytocompatibility, and sponge collagen/TCP composite was somewhat better than floc collagen/TCP composite, which could result from that micropores derived roughness in pore walls of sponge collagen/TCP composite is suitable for cell growth.

Durability of BFRP and Hybrid FRP Sheets under Freeze-Thaw Cycling

2010 ◽  
Vol 163-167 ◽  
pp. 3297-3300 ◽  
Author(s):  
Jia Wei Shi ◽  
Hong Zhu ◽  
Zhi Shen Wu ◽  
Gang Wu
Keyword(s):  
Mechanical Properties ◽  
Test Data ◽  
Mechanical Characteristics ◽  
Test Results ◽  
Freeze Thaw ◽  
Frp Composites ◽  
Test Parameters ◽  
The Stability ◽  
Better Than

Coupon tests were conducted to investigate the mechanical characteristics of basalt FRP (BFRP) sheet, basalt-carbon hybrid FRP sheets and the corresponding epoxy rein under the effect of freeze-thaw cycling. FRP sheets and epoxy rein coupons were subjected to up to 200 and 250 freeze-thaw cycles respectively. Test parameters included the number of freeze-thaw cycles and the types of FRP composites. Test results show that (1) BFRP sheet perform better than CFRP or GFRP sheets under high freeze-thaw cycles; (2) exposed hybrid FRP sheets not only show very little loss in mechanical properties, but also contribute to the stability of test data; (3) mechanical properties of rein epoxy decrease significantly with increasing freeze-thaw cycles.

scholarly journals Persepsi Petani terhadap Pilihan Menjual Padi Kepada Penebas atau Perpadi (Kasus Subak Benel, Desa Kaliakah, Kecamatan Negara, Kabupaten Jembrana)

2017 ◽  
pp. 563
Author(s):  
I MADE PRASADA ARY WIRAWAN ◽  
I DEWA PUTU OKA SUARDI ◽  
I MADE SARJANA
Keyword(s):  
T Test ◽  
Mean Difference ◽  
P Value ◽  
Food Crops ◽  
Test Program ◽  
Qualitative Descriptive ◽  
The Mean ◽  
The Difference ◽  
The Government ◽  
Better Than

Farmers Perception Of Options To Sell Rice Penebas Or Perpadi(especially in Subak Benel, Kaliakah Village, Negara districts,Jembrana Regency) Various efforts have been implemented by the Provincial Food Crops Agency of Balito stabilize the price of grain, this is done by giving Funds of Rural EconomicEmpowerment Capital to the government for the purchase of rice. Although it hasbeen done from 2003, farmers are still selling it to Penebas with a bondage system.The purpose of this study to determine the perception of farmers to the choice ofselling rice to Perpadi or Penebas seen and differences in farmers' perceptions of thechoice of selling rice to Penebas or Perpadi. The research location is located in SubakBenel, Kaliakah Village, State District, Jembrana District. The analytical methodused is qualitative descriptive that aided with score, to answer the purpose ofresearch by using questionnaire. The results of this study indicate that the perceptionof farmers to the choice of selling rice to Perpadi better than to Penebas. This is seenin the achievement of the farmers' choice of selling paddy to Perpadi is very goodand to Penebas is good. The difference of Perpadi with Penebas is measured throughDifferent Test with SPSS Independent Sample T test program which the result of Sigvalue. Or p value of 0.004 where <0.05 then there is a statistically significantdifference in probability 0.05, the mean difference or mean of both groups is shownin Mean Difference ie .29559.

scholarly journals Thermal Comfort Evaluation of Rooms Installed with STPV Windows

Energies ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 808 ◽  
Author(s):  
Hao Tian ◽  
Wei Zhang ◽  
Lingzhi Xie ◽  
Zhichun Ni ◽  
Qingzhu Wei ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Indoor Environment ◽  
Thermal Sensation ◽  
Test Results ◽  
Test Unit ◽  
Maximum Difference ◽  
Test Rig ◽  
Comfort Evaluation ◽  
The Difference ◽  
Better Than

Thermal comfort is an important aspect to take into consideration for the indoor environment of a building integrated with a semi-transparent Photovoltaics (STPV) system. The thermal comfort of units with photovoltaic windows and that of conventional windows, which is an ordinary without PV, were evaluated via on-site tests and questionnaires. Using the thermal comfort investigation of the test rig, the maximum difference in air temperature was found to be around 5 °C between test unit and comparison unit. The predicted mean vote (PMV)–predicted percentage dissatisfied (PPD) value of the test unit was better than that of the comparison unit. It was observed that on sunny days, the PMV value ranged from 0.2 (nature) to 1.3 (slightly warm) in the test unit, and that of the comparison unit was 0.7 (slightly warm) to 2.0 (warm), thereby providing better thermal comfort, especially during mornings. The maximum difference in PPD values was found to reach 27% between the two units at noon. On cloudy days, the difference was negligible, and the thermal sensation between the foot and the head were almost the same. Fifty respondents were asked to complete a carefully designed questionnaire. The thermal sensation of the test unit was better than that of comparison unit, which corresponded with the test results. Thermal, lighting, acoustic, and other environment comfort scores were combined, and the acceptance of the test unit with the STPV windows was found to be 73.8%. The thermal sensation difference between men and women was around 5%. Thus, during summer, STPV windows can improve the thermal comfort and potentially reduce the air-conditioning load.

scholarly journals Concept Map Technique as a New Method for Whole Text Translation

2017 ◽  
Vol 10 (4) ◽  
pp. 62
Author(s):  
Tamara Mohd Altabieri Krishan
Keyword(s):  
Traditional Method ◽  
English Language ◽  
Concept Map ◽  
Arabic Language ◽  
T Test ◽  
New Method ◽  
Test Results ◽  
Test Of Homogeneity ◽  
The Difference

This study discusses the use of concept map tool as a new method for teaching translation (from English language to Arabic language). This study comprised 80 students divided into two groups. The first group was taught the new vocabulary by using the concept tool method, whereas the second group was taught the new vocabulary by the traditional method. Pre-test and test of homogeneity was administered in order to ensure the equivalence of the students. During the training, the two groups were subjected to evaluation tests (first, second and final) in which the students were asked to summarize text into a paragraph by translation. The differences between the two methods were compared by using t-test. Results of pre-test indicated that the difference between the two groups was not significant and the scores were linearly distributed. Results of students’ scores between the two groups for the first exam was not significant, however, the difference between the two groups for second, final and total scores was significant. It was seen that the introduced method of text translation improves the student skills compared with the traditional method.

The Study of Anti-UV and Anti-Solarization of Strength Synthetic Fiber

2012 ◽  
Vol 573-574 ◽  
pp. 1224-1229
Author(s):  
Hai Yan Ni ◽  
Ying Jin Gan ◽  
Jin Ti You
Keyword(s):  
Fiber Bundle ◽  
Performance Test ◽  
High Strength ◽  
Uv Protection ◽  
National Standards ◽  
Synthetic Fiber ◽  
Test Results ◽  
Before And After ◽  
The Difference ◽  
Better Than

In view of anti-UV of the high strength synthetic fiber hoisting belt, the researcher compared the effects on anti-ultraviolet of SCJ-966 and HTUV100,through before and after intensity test and the test of Anti-solarization performance,then comparing with tests of fiber bundle strength,the reacher analyzed the effect of anti-UV and the difference on intensity.The result shows that:two UV performance are very good, far more than the European and national standards,and the webbing performance test results show that the UV protection of SCJ-966 UV protection is better than HTUV100, but the intensity rate is the former smaller than the latter, the extent damage of hoisting belt is the latter worse than the former.

scholarly journals The difference of the salivary volume before and after drinking the rosella tea (Hibiscus sabdariffa)

2010 ◽  
Vol 22 (3) ◽  
Author(s):  
Mutiara Indah Permata Sari Islami ◽  
Edeh Roletta Haroen ◽  
Sri Tjahajawati
Keyword(s):  
In Vitro Study ◽  
T Test ◽  
Hibiscus Sabdariffa ◽  
Test Analysis ◽  
Community Benefits ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
The Difference

Introduction: Roselle plants (Hibiscus sabdariffa) is one of the herbs that began to be used by the community. Benefits of this plant is quite a lot for health. The portion taken for consumption is the red flower petals. oselle tea is one of the sour beverages which can affect the salivary gland secretion. The purpose of this study is to analyzed the difference of salivary volume before and after drinking roselle tea. Methods: This study has been conducted to 40 students of Faculty of Dentistry, Padjadjaran University, ranging from 18-23 years of age with good general condition. This study is quasi-experimental in vitro study using the paired test analysis with α = 0,05 of the data collected from salivary volume. Results: The result of study indicates that the average of salivary volume before drinking roselle tea is 1,90 milliliter. After drinking roselle tea, the average of salivary volume is 4,54 milliliter. The result of paired test analysis shows that t-test is 16,172 and t-table is 2,022. The value of t-test > t-table. Result of statistic shown there is significant difference of salivary volume before and after drinking roselle tea. Conclusion: There is a difference of salivary volume before and after drinking roselle tea.

Sign in / Sign up

Export Citation Format

Share Document