Hasil Pencarian  ::  Simpan CSV :: Kembali

"Measuring mental workload requires both subjective and objective measurement. However, as existing objective measures lack applicability due to technical reasons and cost considerations, this study evaluates an easy to use and cost effective method of measuring the sensitivity of the eye blink rate as a potential objective measure of mental workload. Eight participants were instructed to operate a driving simulator in a lab setting and complete a series of driving tasks set at three different levels of difficulty. The completion time and penalty scores were recorded as the performance measures. The eye blink rate data were analyzed as an objective measure, and the NASA Task Load Index (NASA-TLX) was used to assess the participants’ mental workload at the end of each task as the subjective measure. Although the completion time, penalties, and NASA-TLX increased as the difficulty level of the tasks increased, the eye blink rate decreased. The implications of these results are discussed."

"Site Specific Management (SSM), which also variously referred to as Variable Rate Technology (VRT), is an emerging technology that enables producers to make more precise input application decisions based on soil and field characteristics. This study analyzes factors influencing the adoption of VRT for fertilizer application for cash grain production in Ohio. Results show that producer and field characteristics might influence the adoption decision on various SSM components differently. It also provides insight as to the sequence of adoption of SSM component technologies and how this sequence might differ for producers of differing characteristics."

"Avacuum drying system is being designed and developed at National Institute ofVacuum Science & Technology (NINVAST) to dry various materials under vacuumconditions. Its performance and capabilities are tested by carrying outdifferent experiments on green (freshly cut) wood samples of Poplar andEucalyptus with dimensions of 990.6 mm x 76.2 mm x 25.4 mm and 469.9 mm x 50.8mm x 25.4 mm, respectively. These samples were dried from green moisturecontent (MC) 78% to 10% by this system at ultimate vacuum of about 1.6 x 103pascal and at a temperature ranging from 35oC to 55oC forabout 20 hrs. Drying quality tests included: prong test, warp measurement,surface checking and moisture content measurement, which were all performed.The resulting wood samples showed no dislocation and no excessive stressbuildup. If compared to ordinary drying process, the vacuum drying is rapid andthe drying rate increases with rise in temperature. The designed system isbeneficial for commercial use."

"Pelumas mesin adalah zat kimia berbentuk cairan yang diberikan diantara dua benda yang bergerak untuk mengurangi gaya gesek yang terjadi. Pelumas mesin perlu diganti secara berkala untuk menjaga keawetan mesin kendaraan roda empat. Produsen pabrikan kendaraan roda empat sudah memberikan jangka waktu penggantian pelumas kepada konsumen, namun jangka waktu tersebut hanya berupa acuan. Tujuan dari penilitian ini adalah mempelajari metode perhitungan untuk menemukan waktu penggantian pelumas yang tepat beserta parameternya, mempelajari hubungan dan karakteristik antara temperatur pelumas mesin dengan temperatur coolant, serta mempelajari hubungan perilaku berkendara terhadap penurunan kondisi pelumas mesin. Penilitian ini dilakukan dengan mengambil data temperatur pelumas mesin dan coolant menggunakan Ancel kemudian dilakukan analisis untuk mendapatkan rumus penentuan temperatur pelumas mesin dan didapati mean absolute error sebesar 0 hingga 3,60. Penilitian ini dilakukan dengan melakukan pengujian perilaku berkendara eco, normal, dan sport sejauh 300 km tiap perilaku berkendara. Pada penelitian ini, data kecepatan putaran mesin dan temperatur coolant diambil melalui OBD II lalu diolah menggunakan Raspberry Pi menjadi RPS dan temperatur pelumas mesin kemudian diolah lebih lanjut oleh backend kemudian data tersebut dikirimkan ke Android. Pada aplikasi Android, output dari hasil pengolahan data tersebut ditampilkan menjadi persentase kondisi pelumas mesin, jarak sisa tempuh pelumas mesin, dan waktu sisa tempuh pelumas mesin. Hasil pengujian menunjukkan bahwa pada perilaku berkendara sport, kondisi pelumas mesin mengalami penurunan paling besar di angka 3,9% diikuti dengan normal sebesar 3,18% dan yang mengalami penurunan paling sedikit adalah eco dengan 2,39%.

---

Engine oil is a liquid chemical that is given between two moving objects to reduce the frictional force that occurs. Engine lubricant needs to be replaced periodically to maintain the durability of four-wheeled vehicles. Manufacturers of four-wheeled vehicle manufacturers have given the lubricant replacement period to consumers, but this time period is only a reference. The purpose of this research is to study the calculation method to find the right time to replace the lubricant along with its parameters, study the relationship and characteristics between engine lubricant temperature with coolant temperature, and study the relationship of driving behavior to decrease engine lubricant conditions. This research was carried out by taking data on engine lubricant temperature and coolant using Ancel and then analyzing it to get the formula for determining engine oil temperature and found the mean absolute error of 0 to 3.60. This research is done by testing the driving behavior of eco, normal, and sport as far as 300 km for each driving behavior. In this study, engine speed and coolant temperature data are taken through OBD II and then processed using Raspberry Pi into RPS and engine lubricant temperature then further processed by the backend then the data is sent to Android. On the Android application, the output of the data processing results is displayed as a percentage of engine lubricant conditions, engine lubricant remaining distance, and engine lubricant remaining time. The test results show that in sports driving behavior, the condition of engine lubricants decreased the most at 3.9% followed by normal at 3.18% and the lowest decreased was eco with 2.39%."

"Summary: From acoustics to zoology, the bestselling, authoritative encyclopedia that brings the latest in science and technology to students. Celebrating more than 50 years of bringing knowledge to readers at all levels of study, the McGraw-Hill Encyclopedia of Science & Technology, 11th Edition provides need-to-know information in the major disciplines of science and technology. All entries are commissioned from leading"