1,720,966 research outputs found
Rancang Bangun Mesin Pemipil Jagung Menggunakan Sistem Poros Pemipil Dengan Rantai Perontok
Full text linkIndonesia is an agricultural country with vast agricultural land and abundant natural resources. Thus, it is not surprising that the Indonesian agricultural sector has a very important role in economic growth, because this sector has great potential in absorbing a large number of workers as well as supporting food needs. West Sumatra is one of the corn-producing provinces in Indonesia with corn production in West Sumatra Province in 2020 of 935,716 tons or 59,465 tons less than the production target of 995,201 tons. Availability of corn supplies will greatly affect the livestock industry in general. If the supply of corn raw materials experiences scarcity, it will result in stagnation in the availability of animal feed. On the contrary, with the adequacy of corn raw materials, it will encourage the smooth supply of animal feed. This means that corn is very influential on the performance of livestock development and the provision of animal protein which is much needed in improving the quality of human resources. The purpose of this research is to be able to design and manufacture a corn sheller machine. The working principle of this machine is to rotate the shaft which aims to make the corn revolution motion towards the shaft and is held by the retaining wall at the bottom which will separate the corn kernels and the cobs. The research method used is applied research method. This research started from the design of the corn sheller machine until the tool was formed, so that the following specifications were obtained: using a gasoline-fueled motor with a power of 6.5 HP, having a funnel above the side of the sheller tube, using a frame with angle iron, the sheller shaft consists of shaft with a length of 870 mm and a diameter of 25.4 mm and there are 13 threshing chains on the side of the shaft with a width of 20 mm and each chain has a length of 180 mm, has a corn screen that functions as a retaining wall and a corn separator filter with cobs, There are 2 pieces pulley, namely the pulley on the motor and sheller shaft, and uses a belt with size A-44
Perancangan Mesin Pengering Daun Serai Sistem Rotary
Full text linkSerai merupakan salah satu jenis rumput-rumputan yang sudah sejak lama di budidayakan di Indonesia. Untuk menaikan pendapatan petani serai perlu dilakukan usaha perluasan kegiatan sehingga ada added value bagi petani. Untuk itu perlu dilakukan pembuatan sebuah alat yang digunakan untuk mengolah serai menjadi minyak serai. Tujuan dari rancang bangun ini untuk merancang dan mendesain mesin pengering daun Serai sistem rotary, untuk membuat gambar kerja mesin pengering daun Serai sistem rotary
A Portable Device of Air Pollution Measurement Due to Highway Exhaust Emissions Using LabVIEW Programming
Full text linkA multisensory gas device integrated with myRIO module to measure air pollution has been established. This device is programmed using the LabVIEW programming language and can measure CO2, CO, NOX, and HC pollution on roads due to motor vehicle exhaust emissions. The device and the display system are made separately using wireless network communication to make this tool portable. Exhaust Gas Analyzer (EGA) was chosen for device calibration, obtaining 3.62% on the average error after performing 30 tests. The tests for measuring CO, CO2, NOX, and HC gas levels were conducted in several locations in Padang City and performed in the morning, afternoon, and evening. The result showed that the system properly measured CO2, CO, NOX and HC pollution in parks and highways in real-time in parts per million (ppm). It also displayed varied gas measurement results in terms of time and test location with a range of CO gas values at 0.034 – 0.15 ppm, CO2 151.3 – 815.2 ppm, NOX 0.0001 – 0.004 ppm, and HC 0.04 – 0.65 ppm. In addition, the system could perform well in providing warnings by automatically activating the air indicator alert at several measurement places when the gas content on one of the gas elements and compounds at a particular location has exceeded the threshold for the clean air category. Thus, this device can be used as initial research to build a real-time air pollution measurement system using the Internet of Things (IoT)
Analisa Perawatan Mesin Penyuir Daging Sapi
Full text linkAn analysis has been carried out to treat the meat grinder machine. The care of the meat grinder machine is important to help the production process of rendang suir craftsmen. Meat grinder machine consists of several components, namely the engine, electric motor, pulleys, V-belts, reservoirs, and spindle shaft. With the components above, this meat grinder machine is expected to work optimally with satisfactory results. The meat grinder machine treatment consists of repairing, repairing, total care. Canceled maintenance consists of recovery, lubrication, and periodic checks. Repair treatments include maintenance of the blade, bearing care, pulley care and belt. While total maintenance is carried out after the engine has been running long enough. The result of the treatment that has been done is a machine that can be run properly which can produce a maximum of 30 kg / hou
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
PEMBUATAN MESIN PENGIRIS BAWANG
Full text linkThe main goal to be achieved is to be able to make an onion slicing machine so that it can answer the problem if the onion slicing is carried out in a larger capacity. The onion slicing machine is made to support the increase in the production of shallot slices, which are ready to be fried for the production of scallion onions in household industries. In a small scale, the work can be done manually with a knife or other simple cutting tool. Problems will arise if large quantities of sliced or cut production are available. In order to facilitate the community in processing shallots and learn about the problems, namely how to produce a shallot slicing machine with uniform slices results using different slope angles on the knife. the working principle of this machine is the Onion which has been peeled dry skin inserted into the funnel then the plate on the back of which has a knife, will rotate because it is driven by an electric motor. As a result of the rotation the onion will be sliced and the slice will fall down, and below it a container will be used as a cross section of the onion which has been finished sliced as a resul
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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