Abstract:Processing leaves to make compost is generally still done by chopping using a machete, or many are not chopped, making it difficult for the leaves to decompose or rot. This research aims to determine the results of chopping…
ing using a single blade and by varying the size of the blade and varying the rotation speed of the machine. The benefit of this research is to determine the influence of leaf chopper machine components, especially the number of leaf chopper blades, using descriptive qualitative research methods with data collection methods, literature studies and observations. The research location is in the HKBP Nommensen University Laboratory workshop, Pematang Siantar, North Sumatra. The research process took the form of testing carried out in several stages, namely using a single blade by varying the length of the blade and varying the rotation speed of the machine to compare the speed and chopping results. Three trials were carried out each with varying blade lengths of 30cm, 35cm and 40cm and rotation variations of 2500rpm, 3000rpm and 5000rpm. The results are in the form of a comparison of speed and counting results between variations of 30cm, 35cm and 40cm. The test results more effectively lead to variations in blade size of 40cm. And the results of testing the engine rotation speed which is more effective leads to a rotation speed variation of 5000rpm.
Abstract:The problem in this study is that Accounting Learning Outcomes have not met expectations in the 11th grade Accounting students of SMK Negeri 1 Patumbak. This study aims to determine the effect of Self-Efficacy and Learning…
ng Motivation on Learning Outcomes, with Learning Independence as a moderating variable, in 11th grade students at SMK Negeri 1 Patumbak. This research was conducted at SMK Negeri 1 Patumbak, located at Jl. Ujung Defense, Lantasan Baru, Patumbak District, Deli Serdang Regency, North Sumatra. This study used an ex post facto approach. The population was 35 11th grade Accounting students. The sample size was 35 students, using total sampling. Data collection was conducted through documentation and questionnaire distribution. The questionnaire was first tested for validity and reliability. The collected data was then processed using multiple linear regression with SPSS version 30 software. The results of this study indicate that: (1) Self-efficacy has a positive and significant effect on students' accounting learning outcomes. This is indicated by a regression coefficient of 0.321 with a significance level of 0.021, which is less than 0.05. (2) Learning motivation has a positive and significant effect on students' accounting learning outcomes. The analysis results show a regression coefficient of 0.428 with a significance level of 0.004, which is less than 0.05. (3) Self-efficacy and learning motivation simultaneously have a significant effect on students' accounting learning outcomes. This is proven by a calculated F-value of 18.672 with a significance level of 0.000, which is less than 0.05. (4) Learning independence moderates the effect of self-efficacy on accounting learning outcomes. This is indicated by the significance value of the interaction variable between self-efficacy and learning independence of 0.043, which is less than 0.05. (5) Learning independence moderates the influence of learning motivation on accounting learning outcomes. The analysis results show a significance value of the interaction variable between learning motivation and learning independence of 0.029, which is less than 0.05. This means that learning independence strengthens the influence of learning motivation on students' accounting learning outcomes
Abstract:On January 27 and 28 2023, Manado City was hit by heavy rain which caused several areas to experience significant flooding. The high intensity of rain during that period reached extreme levels, resulting in the inundation…
n of several areas and submerging hundreds of residents' houses in 22 villages or sub-districts and 7 sub-districts in Manado. In studying this event, this research investigates the factors that influence extreme weather in Manado, observing sea surface temperature data, streamlines, air observations, the Southern Oscillation Index (SOI), and the Indian Ocean Dipole (IOD). The analysis shows that the positive SOI and negative IOD phenomena significantly impact extreme weather in the region. Cumulonimbus (Cb) clouds drove the atmospheric conditions formed on January 27 and 28 2023 and air flows from the Indian Ocean which brought wet air masses into Indonesian territory. High sea surface temperatures, reaching 28-29°C, also play a role in the intensive growth of rain clouds. Based on atmospheric conditions seen from radiosonde observation data, the stability index value shows that unstable conditions trigger heavy rain which causes flooding