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PENANAMAN SIKAP ANAK USIA DINI MELALUI PERMAINAN EDUKATIF
No full textPenelitian ini bertujuan untuk mengetahui: (1) manajemen penanaman sikap anak usia dini melalui permainan edukatif; (2) kendala dan pendukung manajemen penanaman sikap anak usia dini melalui permainan edukatif; dan (3) hasil manajemen penanaman sikap anak usia dini melalui permainan edukatif. Penelitia ini menggunakan pendekatan kualitatif. Sumber data penelitian ini adalah dari; (1) informan; (2) kegiatan dan aktivitas; dan (3) dokumen. Teknik pengumpulan data dalam penelitia ini adalah; (1) wawancara; (2) observasi; dan (3) studi dokumen. Pengujian keabsahan data atau uji validitas data dalam penelitian ini dilakukan melalui triangulasi. Analisis data dalam penelitian ini adalah reduksi yaitu merangkum untuk memfokuskan hal yang penting. Langkah selnjutnya mendisplay, yaitu menyajikan data. Dan selanjutnya adalah menarik verification atau menarik kesimpulan. Dari analisis data dan pembahasan diperoleh kesimpulan bahwa dengan manajemen penanaman sikap anak usia dini melalui permainan edukatif anak dapat;(1) menerapkan sikap spiritual yaitu percaya adanya Tuhan melalui ciptaannya, dan sikap rasa syukur kepada Tuhan; (2) menerapkan sikap sosial antara lain sikap ingin tahu, kreatif, percaya diri, disiplin, mandiri, toleransi, tanggungjawab, dan jujur.Kata kunci: manajemen, penanaman sikap, anak usia dini, permainan edukati
Analisis Sistem Photovoltaic Beban Arus Searah Terhubung Jala PLN dengan Penyearah Terkendali
Full text linkPhotovoltaic (PV) systems can be connected to the utility grid to ensure the reliability and continuity of the electrical energy supply. Although the output of the PV modules and many electrical loads are direct current (DC), most grid connected PV systems use alternating current (AC) grid through the inverter. This study presents an analysis of DC microgrid PV system connected to PLN utility grid using controlled rectifier. The controlled rectifier circuit uses a thyristor which can be controlled at its ignition angle to regulate the output voltage and current supplied from utility. The proposed PV system configuration simulations are performed using PSIM software. The system supplies resistive loads in the form of DC lights. Simulations are carried out with variations in load resistance and the thytistor ignition angle. The simulation results show the rectifier circuit has a voltage ripple of 1.57 V (6.47%). While the efficiency of the system under various loading conditions and ignition angle varies between 95.08%–97.72%. The highest system efficiency is obtained under high thyristor ignition conditions
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
Edukasi Bahaya Listrik dan Pencegahannya Bagi Anak-Anak di SDN 1 Sidakangen, Kecamatan Kalimanah, Purbalingga
Full text linkKegiatan pengabdian kepada masyarakat yang dilakukan ini merupakan kegiatan edukasi tentang bahaya listrik serta pencegahannya. Kegiatan pengabdian masyarakat ini dilakukan dengan khalayak sasaran anak-anak usia sekolah dasar (SD) di SD Negeri 1 Sidakangen, Desa Sidakangen, Kecamatan Kalimanah, Purbalingga. SD Negeri 1 Sidakangen saat ini memiliki peserta didik dengan jumlah total 175 anak dengan rincian 91 laki-laki dan 84 perempuan. Jumlah tenaga pendidik saat ini ada 7 orang guru dengan 2 tenaga kependidikan. Saat ini anakanak usia SD belum mendapatkan pembelajaran tentang bahaya listrik dan pencegahannya, namun dalam keseharian dilingkungan mereka baik dirumah maupun di sekolah sudah banyak ditemukan instalasi jaringan listrik dan bahkan banyak diantaranya yang sudah memanfaatkan listrik dalam aktivitas kesehariannya. Ketidakpahaman anak-anak tentang bahaya listrik serta pencegahannya merupakan salah satu penyebab sering terjadinya kecelakaan diakibatkan listrik khususnya pada anak-anak serta masyarakat secara umum. Hal ini pun juga sering terjadi pada orang dewasa yang tidak paham tentang bahaya listrik dan pencegahannya. Selain itu, tidak tersedianya sumber daya yang memadai bagi sekolah dasar khususnya SD Negeri 1 Sidakangen untuk memberikan edukasi tentang bahaya listrik bagi anak-anak didiknya merupakan permasalahan tersendiri. Tujuan dari kegiatan ini adalah untuk memberikan pengenalan dan edukasi sejak dini bagi anak-anak tentang listrik serta bahaya yang diakibatkannya guna mengurangi resiko kecelakaan akibat bahaya listrik dan pencegahannya khususnya pada anak-anak usia SD. Pelaksanaan kegiatan PKM ini menerapkan metode pemaparan (presentasi), simulasi / demo alat, poster dan diskusi. Hasil pelaksanaan kegiatan ini diperoleh bahwa anak-anak SD Negeri 1 Sidakangen menjadi lebih paham akan bahaya listrik dan pencegahannya
Perancangan dan Analisis Tekno Ekonomi PLTH Diesel Generator-Photovoltaic Menggunakan Homer Di Pulau Sambu, Kepulauan Riau
Full text linkPembangkit listrik tenaga hybrid (PLTH) merupakan salah satu solusi untuk mengurangi ketergantungan bahan bakar minyak. PLTH ini memiliki cara kerja yaitu mengintegrasikan dua atau lebih pembangkit listrik. Penelitian ini bertujuan untuk melakukan perancangan untuk mengintegrasikan antara dua pembangkit listrik yaitu pembangkit listrik tenaga surya (PLTS) dengan pembangkit listrik tenaga diesel (PLTD). PLTD pada Pulau Sambu beroperasi selama 24 jam. Dengan pengoperasian PLTD yang bekerja 24 jam tersebut, maka biaya bahan bakar yang dikeluarkan untuk menggerakan PLTD tersebut cukup mahal. Sehingga hasil yang diperoleh dari penellitian ini dapat mengurangi konsumsi biaya bahan bakar PLTD tersebut dan juga dapat mengurangi pengoperasian PLTD yang akan membuat umur dari PLTD tersebut semakin lama. Penelitian ini menggunakan metode perancangan dan analisis tekno ekonomi dengan aplikasi Homer. Hasil penelitian memperoleh hasil desain PLTH di pulau Sambu dengan spesifikasi dan analisis energi yaitu Daya PLTS yang akan terpasang pada Pulau Sambu sebesar 833 kWp, Energi yang dihasilkan PLTH dalam setahun sebesar 3.059.065 kWh menggunakan PLTD dengan kapasitas 2180 kW, menggunakan ukuran Baterai sebesar 1200 kWh, dan PCS PLTH berukuran sebesar 368 kW. Sementara itu analisis ekonomi menunjukan Biaya rata-rata energi listrik per kWh yang dihasilkan PLTH ini sebesar Rp3.710/kWh, Biaya investasi awal PLTH sebesar Rp10.465.295.346, biaya operation dan maintenance PLTH sebesar Rp 359.928.891, Potensi saving PLTD PLTH sebesar Rp4.059.730.570/tahun, Payback period PLTH sebesar 2.5 tahun
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
A Battery-less Grid Connected Photovoltaic Power generation using Five-Level Common-Emitter Current-Source Inverter
No full textRenewable power generation using photovoltaic is very interesting to be developed to deal with the problems of conventional energy sources and environmental issues. The photovoltaic power generation can operate both in stand-alone and grid-connected operations. This paper presents an application of the five-level common-emitter current-source inverter (CE-CSI) for grid connected photovoltaic system without batteries as energy storage system. In the proposed system, the five-level CE-CSI works generating a sinusoidal output current from photovoltaic system to be injected into the power grid. The transformer is used in the system to step-down the grid voltage to meet the voltage level of the photovoltaic system, and also works as a galvanic insulation between the power grid and the inverter system. Two conditions of the power grid voltage, i.e. a pure sinusoidal and a distorted power grid, are tested through computer simulation using PSIM software. Furthermore, experimental test result of the five-level inverter is also presented. The test results show that the five-level CE-CSI works well injecting a sinusoidal current into the power grid with low harmonic contents, and with unity power factor operation. The results also show that the distorted grid voltage affects the harmonic contents of the current injected by the inverter.DOI: http://dx.doi.org/10.11591/ijpeds.v4i4.646
A Battery-less Grid Connected Photovoltaic Power generation using Five-Level Common-Emitter Current-Source Inverter
Get PDFRenewable power generation using photovoltaic is very interesting to be developed to deal with the problems of conventional energy sources and environmental issues. The photovoltaic power generation can operate both in stand-alone and grid-connected operations. This paper presents an application of the five-level common-emitter current-source inverter (CE-CSI) for grid connected photovoltaic system without batteries as energy storage system. In the proposed system, the five-level CE-CSI works generating a sinusoidal output current from photovoltaic system to be injected into the power grid. The transformer is used in the system to step-down the grid voltage to meet the voltage level of the photovoltaic system, and also works as a galvanic insulation between the power grid and the inverter system. Two conditions of the power grid voltage, i.e. a pure sinusoidal and a distorted power grid, are tested through computer simulation using PSIM software. Furthermore, experimental test result of the five-level inverter is also presented. The test results show that the five-level CE-CSI works well injecting a sinusoidal current into the power grid with low harmonic contents, and with unity power factor operation. The results also show that the distorted grid voltage affects the harmonic contents of the current injected by the inverter.DOI: http://dx.doi.org/10.11591/ijpeds.v4i4.646
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