This study aims to determine the effect of e-readiness, e-learning, e-book on the achievement of graduate students; and the influence of e-readiness, e-learning, and e-books on the achievement of graduate students. The research population is graduate students with a sample of 210 doctoral students in Jakarta. The sample selection method is simple random sampling. The research method is a survey method with an associative approach. The data analysis technique is structural equation modeling (SEM) using SmartPLS 3.3.3 software and the data was obtained through the distribution of online questionnaires. The results show that there was an effect of e-readiness on graduate achievement; there was an effect of e-learning on graduate achievement; and finally, there was an effect of e-books on graduate achievement. This research can indicate that the curriculum developed by the students is in accordance with the learning outcomes, especially in the implementation of the learning process.
ABSTRAKBagi para guru di DKI Jakarta menurut data sekolah dinas DKI Jakarta banyak guru guru muda di sekolah yang belum mendapatkan pelatihan mesin CNC padahal bagi guru produktif wajib mempunyai sertifikat mesin CNC, terutama guru yang mengajar mesin CNC. Untuk para guru muda yang belum mendapatkan sertifikasi mesin CNC, mengingat bekal pengetahuan dan keterampilan yang minim, rasanya sulit untuk mengajar di Sekolah Menengah Kejuruan. Tujuan kegiatan pengambidian kepada masyarakat ini adalah untuk memberikan pelatihan keterampilan mesin CNC dari dua aspek, yaitu aspek teknologi/teknik tentang mesin CNC, dan aspek pemeliharaan mesin CNC.Khalayak sasaran adalah para guru yang belum mendapatkan sertifikat permesinan dan yang betul-betul berminat dan mempunyai potensi untuk berkembang. Jumlah peserta yang aktif adalah 21 orang, sebagian besar berasal dari beberapa Sekolah Menengah Kejuruan di antaranya, SMKN 1 Bekasi, SMKN 5 Jakarta, SMK Karya Guna dan SMKN 26 Jakarta. Berdasarkan evaluasi yang telah dilaksanakan, dari aspek teknik, pelatihan ini dapat dikatakan cukup berhasil. Lebih dari 90% peserta menguasai teknik permesinan dengan baik. Untuk aspek manajemen perawatan mesin CNC, Berdasarkan evaluasi yang telah dilaksanakan, dari aspek teknik, pelatihan ini dapat dikatakan cukup berhasil Kata kunci : Pelatihan, Permesinan, CNC
Minimnya pengetahuan tentang pemanfaatan limbah ikan dan belum adanya penerapan teknologi dalam pengelolaan limbah ikan. Hal ini yang menyebabkan limbah ikan hanya dibuang ke laut atau dijual ke pengepul dengan harga murah. Limbah ikan dapat diolah menjadi tepung ikan yang sangat baik sebagai nutrisi tambahan pakan hewan ternak maupun ikan. Penelitian ini membuat”Rancang Bangun Mesin Penggiling Limbah Ikan Menjadi Tepung Ikan”. Pembuatan mesin penggiling limbah ikan ini dimulai dari melakukan studi literatur dan observasi untuk merencanakan dan menentukan mekanisme penggilingan limbah ikan. Setelah itu menyiapkan komponen alat dan bahan untuk pembuatan dan perakitan alat. Setelah alat sudah jadi dilakukan pengujian. Rancang bangun mesin mengunakan motor Type YAL 632 – 4, puli dengan putaran motor 1370rpm, Poros pada pisau berdiameter 18 mm dan system pemanas berupa blower dan heater. Setelah dilakukan perhitungan, rancang bangun alat menggunakan motor 180 watt, dengan gear reduksi 1 : 25 dengan kecepatan akhir 55 rpm, dengan kecepatan sabuk 12.3 m/s. poros memiliki tegangan geser 4 kg/mm2 dan torsi 1279.7 kg.mm. sedang drum yang digunakan memiliki kapasitas 60 liter dan kapasitas ikan yang dikeringkan sebanyak 9 liter.
The purpose of this study was to determine the Erosion hazard, to look for conservation of bio - mechanical techniques are appropriate . Research methods with overlies topographic maps, soil maps, land use maps, to obtain a Land Unit Map. Determined soil physical properties (texture, structure, permeability) and chemical properties of soil (soil organic matter), slope, slope length, broad of land unit, crops factor and value conservation factors that have been there for Land Unit. Each land unit is determined the amount of land erosion and erosion hazard level. Erosion hazard level is determined based on soil erosion, and soil depth. Erosion hazzard level is used to determine the bio-mechanical conservation, according Hardjowigeno and Sukmana (1995). The results showed that the highest erosion hazard level with an area of 12.947 ha is classified weight (Land unit 15A), and the classification of an area of 14.665 ha is clssified moderately (Land unit 6A). Soil conservation is done in areas with highest erosion hazard level by making individual terraces and “kerandang” planted as a cover crops.
Environmental pollution due to industrial activities has been reported since 1760, dating back to the first industrial revolution. One industrial activity that has led to major environmental degradation is coal mining, which can pollute surface and underground water due to acid mine drainage (AMD). Phytoremediation is low-cost, applicable, environmental, and does not generate other waste materials. In this research, we analyze the utilization of Eichhornia crassipes and Pistia stratiotes for AMD treatment. The results indicated that the AMD initially contained Fe, Mn, Al, Ca, and Mg. E. crassipes successfully reduced these contents by up to 69%, while P. stratiotes removed up to 62%. A cost analysis for phytoremediation of AMD is designed in terms of two schemes, with 4298 USD for the first scheme and no cost in the second scheme. The post-harvest potential, future research directions, and bibliometric analysis are also discussed. Overall, the results of this study indicate that P. stratiotes and E. crassipes are plants with great potential for AMD phytoremediation.
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