Abstract:The coconut fiber shredding machine is a tool in the production sector that plays an important role in the process of chopping coconut fiber into coconut fiber, so that it can be used as several useful products. The objectives…
ctives to be achieved in designing this coconut fiber shredding machine are: Knowing the manufacture of a coconut fiber shredding machine with a capacity of 70 kg / hour. Can design and calculate the components of a cocopeat machine that can chop coconut fiber quickly and with greater capacity. Knowing the power of the driving motor used. For the development of knowledge and applying it in the form of design and research. The design of a coconut fiber shredding machine with a capacity of 70 kg/hour, the following conclusions were obtained: Shaft diameter 25 mm, Pin size l = 7 mm, t = mm, p = 20 mm, Bearing number 6005, Motor pulley 50.8 mm (2 inches), Shredder knife shaft pulley 254 mm (10 inches), Belt length 1473 mm (58 inches) type A, Gasoline motor type with 5.5 Hp power, 3600 rpm rotation.
Abstract:This study aims to analyze the Power motor Which needed For peeling skin coconut young ; Basics Which used For make machine peeler skin young coconut ; Calculation components construction machine peeler young coconut skin…
n ; Time Which needed in One time peeling skin coconut young in manual ; Results Which obtained from testing tool help peeler or cutter coconut skin young. From the results of the discussion in designing the construction of a young coconut peeling machine with a capacity of 60 pieces / hour with acceptable results according to the plan. After the discussion is carried out in accordance with what is desired based on the objectives of this planning, namely: determining the motor power needed to drive the young coconut peeling machine; determining the material and size of the machine elements used; showing the work of the machine and making a working drawing of the coconut peeling machine. The results can be concluded as follows: The electric motor used = 1 hp , Belt length on the pulley = 61 inches , Motor pulley diameter = 3 inches , Pulley diameter on the coconut drive = 12 inches , Bearing = 6205 , Analysis of the cost of making the machine used Rp: 5,602,000 .
Abstract:This study discusses the design of a mobile crane to lift damaged vehicles with a capacity of 6 tons with the aim of analyzing the planning of the lifting system used ; planning the rope to be used ; transmission system…
; calculation of the components of the lifting equipment used ; calculation of power to rotate the drum ; the tool designed is a mobile crane with a capacity of 6 tons to 6 tons ; and calculating the lifting time. assembly . Type of drive motor with Combustion engine = internal combustion engine , Drive motor power = 192.36 Hp , Drive motor rotation = 2740 rpm , Max lifting capacity = ton , Lifting height = 3 m . Drum with Drum diameter = 300 mm , Drum pitch = 16 mm , Drum length = 300 mm , Maximum compressive stress of material = 1600 kg/cm 2 The maximum compressive stress that occurs = 1173.6 kg/cm 2 . Steel rope ( Rope type = 6 x 9 x 1 fc , Rope cross-sectional area = 1173.6 kg/cm 2 . = 2.9 cm 2 , Wire diameter = 1.18 mm , Diameter of steel rope = 26.3 mm , Actual fracture stress = 180/199 kg/mm 2 , Fracture loading = 39100 kg/mm 2 , U nut rope usage = 88.2 months ); Pulley ( Type of pulley = fixed pulley , pulley diameter = 4.8 cm , Width of the pulley = 2.2 cm ); Hook ( Hook type = single hook with thread , Thread type on hook = M 42. Length of threaded hook = 42 mm , Number of threads on the hook = 9 threads , Distance between threads = 4.5 mm , Outer diameter on thread = 42 mm , Effective diameter on the thread = 39 mm , Core diameter on thread = 37.129 mm , Hook material = wrought carbon steel SF 60 , Permissible contact stress = 3 kg/mm 2 , The contact stress that occurs = 2.7 kg/mm 2 ); Boom ( Boom type = boom with fixed arm , Number of booms = 2 pieces , Boom length = 4 m , Boom weight = 1568.66 kg , Boom material = steel pipe , Tensile strength of the material = 40 kg/mm 2 , Tensile strength that occurs on the boom = 10 kg/mm 2 ); Gears ( Types of gears = worm gear , type of gear on the shaft material = cross gear , Type of chain used = hinge chain , chain weight per meter = 16.5 kg )
Abstract:This study aims to analyze and design the working system of a passenger elevator, including the working mechanism of the elevator, the design of the lifting system, the calculation of cage capacity, the design of power and…
nd the selection of the main drive motor, the calculation of the main components, the design of the transmission, the calculation of maintenance costs, the selection of component materials, and the creation of technical drawings. The design results show that the specifications of the drive motor used have a power of 6.28 Hp with a rotation of 800 rpm, a lifting speed of 15 m/min, and a lifting capacity of 500 kg. The shaft components are designed using S45C carbon steel, with details of Shaft I with a diameter of 24 mm, Shaft II with a diameter of 41 mm, and Shaft III with a diameter of 41 mm. The gears consist of Gear I with a pitch circle diameter of 42 mm, a circle diameter of 37 mm, a head circle diameter of 46 mm, a width of 16 mm, and 21 teeth; Gear II with a pitch circle diameter of 210 mm, a circle diameter of 205 mm, a head circle diameter of 214 mm, a width of 16 mm, and 105 teeth; Gear III with a pitch circle diameter of 68 mm, a circle diameter of 63 mm, a head circle diameter of 108 mm, a width of 16 mm, and 34 teeth; and Gear IV with a pitch circle diameter of 270 mm, a circle diameter of 265.5 mm, a head circle diameter of 270 mm, a width of 16 mm, and 21 teeth. The drum used has a diameter of 253 mm, a weight of 100 kg, a length of 1073.79 mm, and a thickness of 16 mm.
Abstract:Stress and motivation are factors that also influence the decrease or increase in employee performance. The purpose of this study was to determine and analyze the effect of stress and motivation on the performance of the…
Medan City Employment Service. The author limits the problem only to the effect of stress and work motivation on employee performance at the Medan City Employment Agency. Formulation of the problem whether work stress and work motivation affect employee performance at the Medan City Employment Agency, the population in this study totaled 58 people as the sample. The type of this research is quantitative research, with secondary data and distributing questionnaires to respondents as a data source. The data analysis method used is multiple linear regression analysis, hypothesis testing is done by Partial Test (t), Simultaneous Test (F) and Determination Coefficient Test (R2). The results of this study are Y = 0.550 + 0.447 X1 + 0.398 X2. The stress variable has a partial effect on employee performance. This can be seen from the significant value of 0.001 <0.05 and the t-count value of 3.543 > t-table 1.673. The motivation variable has a partial effect on employee performance, this can be seen from the significant value of 0.002 <0.05 and the t-count value of 3.225 > t-table 1.673, the hypothesis is accepted. The variables of stress and work motivation simultaneously have a positive and significant effect on employee performance. This can be seen from the resulting sig value of 0.000 <0.05 and the Fcount value of 34.156 while Ftable is 3.17 so Fcount > Ftable. Based on the test results of the coefficient of determination (R2) it is known that the R square value is 0.554 which means that the influence of stress and motivation variables on performance variables is 55.4%. It means having a relationship that is not too strong. While the remaining 44.6% is caused by other factors outside the research.
Abstract:This study aims to determine the effect of the STAD type cooperative learning model assisted by Canva on physics recognizing consequences in the situation of momentum and impulse material for the sophistication of X MIPA…
SMA Mulia Pratama Medan Academic Year 2022/2023. The type of research is a quasi-experimental study. The population is Class X MIPA semester 1 SMA Mulia Pratama Medan Academic Year 2022/2023. The research pattern was taken from general sampling, which consists of training, namely the experimental class of 30 students carrying out the STAD version of learning assisted by Canva, and the control class of 30 students carrying out the Direct education (DI) model. Research notes were obtained using a tool in the form of an essay test which includes 10 questions that have been tested beforehand to see the validity of the questions, reliability, stages of the questions and discriminating power. Based on the results of the study for the experimental class, received an average pretest of 50.50 with a trendy deviation of 9.45 and an average post-test rating of 85.07 with a desired deviation of 6.06. For the splendor of manipulation, the average pretest value became 49.57 with a standard deviation of 9.18 and the average posttest value became 79.89 with a popular deviation of 5.48. both trainings have been declared generally disbursed (obtained L0 Fcount statistical test (two-tailed t test) for α = 0.05 and dk 58 obtained tcount < ttable, especially 0.418 < 2.002, this shows that the initial abilities in both classes are the same. Then the two classes were given different treatments and at the end of the learning a post-test was given. From the results of the statistical test of the data (one-tailed t test) obtained tcount> ttable, especially 6.143> 1.671, this final result shows that there is a broad influence of the STAD type cooperative learning model assisted by Canva on physics learning in gaining knowledge about the effects in the problem of calculating the amount of momentum and impulse of class X MIPA students semester I SMA Mulia Pratama Medan 2022/2023 academic year.
Abstract:As the modern era progresses, Indonesia is one of the countries with a majority of its population actively using the internet. However, it's important to note that 10% of Indonesians don't yet understand how to use it. Many…
any areas in Indonesia still experience delays in the adoption of technology, such as the Marangkayu sub-district in Kutai Kartanegara Regency, North Sumatra Province. Therefore, through community service activities, The author wishes to provide training on technology in the modern era, particularly in Badiri District, Central Tapanuli Regency. Because we believe that many people still don't understand digital technology, for example, how to operate a computer. Here, the author wants to share knowledge and information about digital technology, especially for students at SMAN N 1 Badiri, Tapanuli Regency. In this training, the author targets five meetings with material that will be presented, starting from computer operation, providing material on the use of Microsoft Word, Microsoft Excel, and Microsoft Office applications. Power Point. With training It is hoped that students will be able to understand how to operate computers, especially how to operate applications.
Abstract:Women, especially housewives, hold a number of central functions in the family and are important economic resources. Empowerment of women is very important because it can create conditions, atmosphere, climate, which allows…
ows the potential to develop. The main priority of empowerment is the creation of independence. Self-empowerment efforts have also been realized by groups of housewives who are PKM partners, consisting of three people joined in the "SMA HKBP" and three people from the "SMA HKBP" located in, Dolok Sanggul. The objectives of this PKM activity are: 1) help empower groups of housewives who desire to become entrepreneurs; 2) help PKM partners in creating skills and comfort in community life through entrepreneurship; 3) improve thinking, reading and writing skills or other skills such as internet use. The targets of this program are: 1) the formation of a new business in the field of handicrafts from rope or thread curry (macrame); 2) availability of production support tools to produce creative macramé products; 3) there is an increase in knowledge and skills in producing various types of creative macarame products and are in demand by consumers. The outputs of this program are: Entrepreneurship Module, Basic Financial Accounting Module, and Use of Technology, Information and Communication Module. The implementation method is carried out to achieve the purpose of community service through PKM activities through discussion methods, technical guidance/training, workshops, and mentoring. Through PKM activities, empowering partner groups to become entrepreneurs is expected to help empower groups of housewives who are PKM partners so that they can improve the welfare of families and surrounding communities in a concrete manner .
Abstract:Wireless communication has become a basic need or a new lifestyle for people in obtaining information, especially in the SMA Negeri 1 Dolok Sanggul environment. In this community service, the PKM activity implementation…
team was given the opportunity to build a wireless network using a Mikrotik RB951. This was done to empower the densely populated SMA Negeri 1 Dolok Sanggul environment which has the potential to be used as a hotspot business. The method used was a direct practice method for students by implementing health protocols during the pandemic. In addition, a wireless-based network makes it easier for students to access the internet anywhere. The implementation of the network installation consists of several units of RJ-45 connectors on UTP cables, access point configuration, and Mikrotik hotspot server configuration. With the presence of a wireless network in the SMA Negeri 1 Dolok Sanggul environment, it will make it easier for students and teachers to access the internet. In addition, configuring a wireless network is not that difficult, as long as you follow the rules for creating a network.
Abstract:There is no probationary period in PKWT. Law Number 13 concerning Manpower of 2003 states: The employment contract imposed does not require a probationary period. If a probationary period is required in the employment contract,…
ntract, the probationary period does not apply. Certain provisions of the Temporary Employment Contract (PKWT) and the reasons for the probationary period change to a Permanent Employment Contract (PKWTT), so that when they carry out Termination of Employment (PHK) they are entitled to a fixed salary.