1,720,954 research outputs found
Prediction of Erosion Using the USLE Model on Forest and Land Rehabilitation (RHL) Activities in Cibitung and Cisembung Sub-watersheds, Citarum Watershed
No full textDAS Citarum merupakan sumberdaya air yang sangat penting bagi Provinsi
Jawa Barat, tetapi kondisinya sangat memprihatinkan akibat pencemaran dan
erosi. Penelitian ini bertujuan memprediksi erosi di Sub-Sub DAS Cibitung dan
Sub-Sub DAS Cisembung, DAS Citarum serta menyusun arahan pengelolaan
lahan berdasarkan konservasi tanah dan air. Penelitian ini dilakukan dengan
memprediksi erosi eksisting pada Sub-Sub DAS Cibitung dan Sub-Sub DAS
Cisembung, prediksi erosi dengan skenario kegiatan Rehabilitasi Hutan dan Lahan
(RHL) dan skenario arahan pengelolaan lahan sebagai skenario alternatif lain.
Hasil prediksi erosi pada kondisi eksisting di Sub-Sub DAS Cibitung sebesar
38,02 ton ha-1 tahun-1 dan di Sub-Sub DAS Cisembung sebesar 126,12 ton ha-1
tahun-1. Tolerable soil loss di Sub-Sub DAS Cibitung sebesar 29,08 ton ha-1
tahun-1 dan di Sub-Sub DAS Cisembung sebesar 19,99 ton ha-1 tahun-1. Kegiatan
RHL dari BPDASHL Citarum-Ciliwung diprediksi menurunkan erosi di Sub-Sub
DAS Cibitung sebesar 18,7% dan menurunkan erosi di Sub-Sub DAS Cisembung
sebesar 91,38%. Arahan pengelolaan lahan dari kegiatan RHL yang dimodifikasi
diprediksi dapat menurunkan erosi sebesar 31,45% di Sub-Sub DAS Cibitung dan
menurunkan erosi sebesar 86,95% di Sub-Sub DAS Cisembung. Arahan
pengelolaan lahan dengan teknik konservasi tanah dan air diprediksi dapat
menurunkan erosi sebesar 90,58% di Sub-Sub DAS Cibitung dan menurunkan
erosi sebesar 97,03% di Sub-Sub DAS Cisembung.
Kata-kunci: Arahan pengelolaan lahan, DAS, RHLThe Citarum watershed is a very important water resource for West Java
Province, but its condition is very critical due to pollution and erosion. The
research aims were to predict the erosion in the Cibitung and Cisembung Subwatersheds
based on existing, forest and land rehabilitation condition, and to
arrange land management based on soil and water conservation. This research was
conducted by computing the prediction of existing erosion, prediction of erosion
based on forest and land rehabilitation activity and the land management as
another alternative scenario in the Cibitung and Cisembung Sub-watersheds. The
results show that the prediction of erosion in the existing conditions in the
Cibitung Sub-watershed is 38,02 tonnes ha-1 year-1 and in Cisembung Sub watersheds is 126,12 tonnes ha-1 year-1. Tolerable soil loss in Cibitung Subwatershed
is 29,08 tons ha-1 year-1 and in Cisembung Sub-watershed is 19,99 tons
ha-1 year-1. Forest and land rehabilitation activities from BPDASHL Citarum-
Ciliwung are predicted to reduce the erosion in the Cibitung Sub-watershed by
18,7% and reduce the erosion in Cisembung Sub-watershed by 81,94%. The
direction for land management by modificated the forest and land rehabilitation
activities are predicted to reduce erosion by 31,45% in the Cibitung Subwatershed
and reduce erosion by 91,38% in the Cisembung Sub-watershed. The
direction for land management by used water and soil conservation’s technic are
predicted to reduce erosion by 90,58% in the Cibitung Sub-watershed and reduce
erosion by 97,03% in the Cisembung Sub-watershed.
Keywords: Forest and land rehabilitation, Land management, Watershe
Virtual Reality Headset Implementation on Parsec Cloud Gaming Platform
Full text linkVirtual reality (VR) based games are a type of game that provides immersive gaming experience, allowing players to dive into the virtual world of the game being played. VR-based games require a high minimum computer specification, so thin clients cannot play VR-based games properly. This research aims to see how to enable thin computers to play VR-based games by utilizing cloud gaming technology. Using a high specification computer as a server, an android device as a VR headset, this Final Project implements a VR headset device so that it can be used in conjunction with cloud gaming services to be able to play VR-based games on thin computers and see how well the implementation by seeing the result from computer resources used and the Quality of Services. With Parsec cloud gaming services, the application carried out in this Final Project can run well on computers with low specifications. CPU usage on the client computer when the service is running is high at 91% usage, with 2818 MB RAM usage. Quality of Service is obtained when setting the highest quality preset, with a throughput of 16MB with a delay of about 2 ms. VR games that are played can run well with a minimum bandwidth of 15 Mbps selected from the Frame per Second (FPS) results obtained to reach 56 FPS with medium quality settings
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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