1,720,955 research outputs found
Nutrition Control and Moisture Control in Hydroponic Plants Based on IoT (Internet of Things)
No full textHydroponics is a method of growing plants using nutrient solutions. The advantage of hydroponics is that soil can be replaced with a nutrient solution because it can produce its advantages, such as saving land, planting in any area without the need for soil, and producing optimal quality compared to using soil. Technology development is growing rapidly and has created a lot of IoT (Internet of Things) technology. IoT technology can be implemented in hydroponic methods to produce more accurate and well-managed hydroponic plants so that plants are not treated manually. This method comprises six stages: analysis, planning, implementation, testing, and conclusion. Nutrient control in IoT-based hydroponic plants has been widely researched. Many researchers use different work systems and add new features to improve the quality and quantity of hydroponic plant production. Data control is monitored using an application called HyGrow. In obtaining data and information, the author uses observation and qualitative methods by observing and digging up information directly on the hydroponic system in the RH Farm environment. From the test results obtained, this system has successfully controlled and monitored the acidity, temperature conditions, and humidity in hydroponic plants. The percent accuracy of Nutrition and humidity sensors is 98%
Knowledge Level Mapping Seed Production Techniques of Forestry Plantations Based on
No full textThe study aimed to find out the level of knowledge of seed production of forestry plantation crops at the beginning of lectures (pretest) and at the end of classes (posttest) for TIB Bogor and Sukabumi campus students to compare the pretest and posttest scores for these students as well as posttest scores between TIB campus students Bogor with TIB Sukabumi campus students. The research method used as a statistical test tool for the research data used to achieve the research objectives is the paired t-test, the Wilcoxon signed rank test, as the normality assumption test. The results showed an increase in the knowledge of TIB Bogor students during lectures based on the results of the pretest assessment compared to the posttest. Nearly 100% of the student’s understanding of seed production techniques for forestry plantation crops increased. In contrast to TIB Sukabumi students, the average posttest score of IPB Sukabumi vocational students was significantly higher than that of pretest me. This matter shows that lectures on seed production techniques for plantation and forestry plants still need to provide strong evidence of increasing knowledge about this for TIB Sukabumi students. So, it is necessary to do further research related to the factors that influence the lecture process. The average score of IPB Bogor students is higher than that of Sukabumi. It is suspected that there are differences in the factors that influence the attainment of this level of knowledge, such as differences in educational background, teaching quality, or student characteristics on both campuses
Vertical farming application with several growing media for coffee nurseries
No full textCoffee is one of the plantation commodities that play an important role as a source of foreign exchange for the country. One alternative to overcome the land decrease in rural area is to utilize urban farming in the form of a vertical planting system. This study aimed to obtain alternative techniques for planting coffee seedlings using vertical farming and to determine the effect of vertical planting with several growing media on the growth of coffee seedlings. The study was arranged in a non-factorial Randomized Block Design (RBD) with four treatments, namely: 1) conventional nursery; 2) topsoil verticulture nursery; 3) topsoil and compost media verticulture, and 4) topsoil, compost, and husk charcoal media verticulture. The data were analyzed using the Duncan Multiple Range Test (DMRT). The observed variables included observations of the morphology of coffee seedlings and verticulture environmental factors. The results showed that vertical planting on the vegetative growth of coffee seedlings was not significantly different from conventional planting. Topsoil planting media and husk charcoal in vertical planting did not significantly affect the morphological growth of coffee seedlings. The combination of topsoil, husk charcoal and compost gave the best plant height of 12.4 cm at 13 weeks after planting
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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