scholarly journals PERANCANGAN DAN PEMBUATAN ALAT PENGERING CENGKEH BERBAHAN BAKAR BIOMASSA

2020 ◽  
Vol 4 (2) ◽  
pp. 109-112
Author(s):  
Lita Asyriati Latif ◽  
Bambang Tjiroso

Cloves are one of the leading agricultural commodities in North Maluku. The main product of the clove plant is clove flower. The clove flowers used in the production of kretek are dried cloves. Drying clove flowers can be done in two ways, first traditionally by drying them in the hot sun directly, and second by using an artificial dryer. Drying by drying directly in the sun or traditionally has several weaknesses, namely dependence on the weather, causing damage to clove flowers due to too long drying and the need for a large area for drying. The purpose of this research is to design and manufacture a clove dryer equipped with a biomass furnace as a heat source. The research method that will be carried out in this research is experimental research, by designing and building a clove dryer equipped with a biomass furnace as a heat source. The result is a clove dryer with dimensions of 120 cm long, 80 cm wide and 80 cm high. clove dryer equipped with 3 shelves with a distance of 20 cm between the racks. The clove dryer test results show that the time required to dry 18 kg of wet cloves is 13 hours with temperatures in the drying room 49 ℃ to 55 ℃.

KINESTETIK ◽  
2019 ◽  
Vol 3 (1) ◽  
pp. 29-33
Author(s):  
Amirul Shodiq ◽  
Tono Sugihartono ◽  
Ari Sutisyana

AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh latihan lompat gawang terhadap tinggi lompatan spike pada permainan bola voli siswa ekstrakurikuler di MAN 2 Kota Bengkulu. Metode yang digunakan adalah metode penelitian eksperimen dengan desain quasi eksperimen (eksperimen semu). Hasil penelitian menunjukan bahwa selisih pretest  siswa setelah mengikuti program latihan lompat gawang di atas lapangan sebanyak 16 kali pertemuan dapat menunjukan peningkatan terhadap tinggi lompatan spike siswa. Dengan populasi 30 siswa dan sampel 30 siswa (total sampling). Instrument penelitian ini berupa tes lompatan spike untuk mengetahui tinggi lompatan spike. Teknik analisis data menggunakan uji-t.hasil. Dari hasil penelitian di peroleh thitung =10,321 jika di bandingkan dengan nilai ttabel= 1,696. Maka nilai thitung>ttabel ini berarti ada pengaruh dari latihan lompat gawang terhadap tinggi lompatan spike siswa di MAN 2 Kota Bengkulu.Kata Kunci : Lompat Gawang, tinggi lompatan spike.                                                                AbstractThis study aims to determine the effect of goal-jump training on high jump spikes on extracurricular volleyball games in MAN 2 City of Bengkulu. The method used is an experimental research method with a quasi-experimental design (quasi-experimental). The results of the study showed that the pretest difference of students after joining the goal-jumping training program on the field as many as 16 meetings can show an increase in the height of the student's jump spike. With a population of 30 students and a sample of 30 students (total sampling). The research instrument was a jump spike test to determine the height of the jump spike. The data analysis technique uses the t-test results. From the results of the study obtained tcount = 10,321 if compared with the value t table = 1,696. Then the value of tcount> t table means that there is an effect of the goal jump training on the high jumps of student spikes in MAN 2 City of Bengkulu.Keywords: Jump goal, high jump spike.


2019 ◽  
Vol 7 (1) ◽  
pp. 51
Author(s):  
Usep Mudani Karim Abdullah ◽  
Abdul Azis

This article aims to determine the differences in character between students using the value analysis learning strategy by not using the value analysis learning strategy. In value education there are various approaches, one of which is the value analysis approach. Learning strategies of value analysis in the learning of Islamic Cultural History feature stories and stories. The research method used is experimental research. The results of this study indicate that the control class that does not use the learning strategy of value analysis can be seen from the mean value (average) which is 89.04, including the low category. Then, the experimental class that uses the learning strategy of value analysis can be seen from the mean (average) which is 112.57 including the medium category. The test results of the control class and experimental class can be seen from the value of sig. (2-tailed) 0,000 <0.05, it can be concluded that the experimental testing between the control class and the experimental class was successful.


Author(s):  
Andreansyah . ◽  
Rahma Rosaliana Saraswati ◽  
Ersa Ayu Lestari

The aim of the research is to produce an environmentally friendly brick and also know the pressure and water absorption of the concrete- based concrete mixture of styrofoam waste, coconut fiber, and rubbing ash. The method used in this research is quantitative experimental research method. Based on the test results, it can be concluded that in order to achieve maximum pressure the composition of the waste should be 25% and to achieve the minimum absorption, the composition of the waste should be 50%. Batako with a waste composition of 25% and 50% can be categorized as suitable for use based on the results of compressive strength and water absorption. Meanwhile, concrete blocks with 75% waste are not suitable for use because the results of pressure testing are below the minimum standard SNI No. 03-0349 in 1989.


2017 ◽  
Vol 1 (1) ◽  
pp. 115
Author(s):  
Muhammad Hassan Massaty ◽  
Yudianto Sujana ◽  
Aris Budianto

Historical learning in Indonesia is very minimal innovation. Due to the lack of innovation from year to year emerged various problems in historical learning activities such as monotonous, boring and uninteresting. The variety of learning media will be able to increase interest of learners in the learning process. The result of this research is an interesting and non-boring Android-based history learning media that is called Sekar Indonesia and worthy of being used as a learning media. This research method is research and development (R &amp; D). This study was conducted using a research model developed by Borg &amp; Gall. The research model consists of five steps: research and data collection, planning, product drafting, preliminary field testing and main product revision. Applications Sekar Indonesia tested by material experts, media experts and users. Expert testing results obtained percentage of 86.1% from material experts, 92.85% from media experts, and 97.7% form users. From the test results obtained the conclusion that the application Sekar Indonesia that has been developed can be used as a learning media.


Author(s):  
Sri Agus Murniasih And I Wayan Dirgeyasa

This study was conducted to know the effect of applying Peer Review Strategy on the students’ achievement in writing descriptive paragraph. It was conducted by using experimental research method. This research design was conducted pre-test, post test in experimental and control group. The population of this research was the eight (VIII) grade students of SMP IT IQRA’ Medan. The sample of this research was taken by lottery technique. They were in class VIII-1 by experimental group and the class VIII-2 by control group. The experimental group was taught by using Peer Review Strategy while the control group was given no treatment. The instrument used to collect the data was writing essay test. The data were analyzed by using t-test formula. The result showed that the value of t-observed was higher than the value of t-table. (3,55 > 2,05 (a = 0.05)) with the degree of freedom (df) = 28. It means that there was a significant effect of applying Peer Review Strategy on the students’ achievement in writing descriptive paragraph. So, the alternative hypothesis (Ha) was accepted.


EDUDEENA ◽  
2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Agus Miftakus Surur

Researchers chose a modified free inquiry model to help improve students’ fluency and elaboration. The purpose of this research is to know the application of modified free inquiry which can improve the student’s fluency and elaboration of students’ thinking on trigonometric material. Research method in this research is qualitative research method and research type is research of class action. The data in this study were obtained from the results of validation, test results, observation of teacher and student activity, and interview result, then apply data triangulation and theory to check the validity of data. The results showed an increase in fluency and elaboration in students. This means that a modified free inquiry model can help improve students’ fluency and elaboration in trigonometric learning. The results are supported by the observation of teacher and student activity that is in accordance with the lesson plan and also the result of the interview which get positive response from the students.Keywords: modified free inquiry, fluency and elaboration, mathematics


2019 ◽  
Vol 4 (2) ◽  
pp. 176-183
Author(s):  
Ponco Wali

Testing repeat electronic scales with non-automatic scales technical requirements so far is fairly long if not using a calculator or computer. The aim of this research is to compare the repeatability testing method of electronic scales using methods according to the technical requirements of non-automatic scales and the Australian NMI method, both of which refer to OIML R76 in determining the validity or cancellation of electronic scales repeatability testing. This research method is done through repeat testing on 3 samples of electronic scales, then on each electronic scale 2 test methods are performed. The conclusion is that the electronic scales repeatability testing uses the non-automatic scales technical requirements method and the Australian NMI method has some differences although both refer to OIML R76. These differences include several points, namely the charge used, the method of adding additions, the formula for determining electronic scales, and different test results. The Australian NMI method is deemed to make it easier and more time efficient compared to the non-automatic weighing technical requirements method.


2021 ◽  
pp. 109634802110303
Author(s):  
Hengyun Li ◽  
Fang Meng ◽  
Simon Hudson

The research aims to examine how positive review disconfirmation (i.e., a positive deviance between a hotel consumer’s poststay evaluation and the average review rating by prior consumers) affects subsequent consumers’ willingness to post online reviews and their own review ratings. By employing an experimental research method, this study reveals that positive review disconfirmation increases hotel guests’ willingness to post online reviews, and increases their online review ratings through the mechanism of concern for others, demonstrating an act of altruism. In addition, comparatively the positive review disconfirmation effects are stronger when the variance of prior review ratings is smaller. This study enhances the online review social influence literature, and the consumer’s altruistic motivation of posting online reviews.


Volume 1 ◽  
2004 ◽  
Author(s):  
T. Roy ◽  
R. S. Amano ◽  
J. Jatkar

Soil remediation process by heated soil vapor extraction system has drawn considerably attention for the last few years. The areas around chemical companies or waste disposal sites have been seriously contaminated from the chemicals and other polluting materials that are disposed off. Our present study is concentrated on modeling one transient Heated Soil Vapor Extraction System and predicting the time required for effective remediation. The process developed by Advanced Remedial Technology, consists of a heating source pipe and the extraction well embedded in the soil. The number of heat source pipes and the extraction wells depends on the type of soil, the type of pollutants, moisture content of the soil and the size of the area to be cleaned. The heat source heats the soil, which is transported in the interior part of the soil by means of conduction and convection. This heating of soil results in vaporization of the gases, which are then driven out of the soil by the extraction well. The extraction well consists of the blower which would suck the vaporized gases out of the system. A three-dimensional meshed geometry was developed using gambit. Different boundary conditions were used for heating and suction well and for other boundaries. Concentrations of different chemicals were collected from the actual site and this data was used as an initial condition. The analysis uses the species transport and discrete phase modeling to predict the time required to clean the soil under specific conditions. This analysis could be used for predicting the changes of chemical concentrations in the soil during the remediation process. This will give us more insight to the physical phenomena and serve as a numerical predictive tool for more efficient process.


2011 ◽  
Vol 308-310 ◽  
pp. 1426-1435 ◽  
Author(s):  
Zahari Taha ◽  
Vin Cent Tai ◽  
Phen Chiak See

This paper describes the design and manufacture of a Miniature Unmanned Aerial Vehicle (MUAV) using the StratasysTM 3D Rapid Prototyping (RP) machine. The main motivation for this work is to demonstrate the rapid product development capabilities of the machine. The polymeric material used in this process is Acrylonitrile-Butadiene-Styrene (ABS). Its superior properties allow the MUAV structure to be built accurately to design specifications. The advantage of this approach is the shorter time required for design, fabrication and deployment.


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