bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hidrolisis Enzimatis Minyak Kelapa Hidrolisis Enzimatis Minyak Kelapa dengan Lipase dari Rhyzomucor miehei / Enzymatic Hydrolysis of Coconut Oil using Lipase from Rhyzomucor mieheiLipase dari Rhizomucor miehei
Authors: Karouw Steivie , Trivana Linda , Barlina Rindengan , Santosa Budi 
Published: February 2018

<p>The objectives of the research was to find the temperature and time of enzymatic hydrolysis reaction of coconut oil by lipase from Rhizomucor miehei as biocatalyze which could produce the highest free fatty acids. Enzymatic hydrolysis reaction was held at various of reaction temperature (35, 40, 45 dan 50oC) and reaction duration (6, 12, 18 and 24 hours). Enzymatic hydrolysis reaction was carried out in waterbath shaker on pH of 7.0 and enzyme concentration of 2.5% based on substrate weight. The hydrolysis products were monitored using TLC using hexane:diethyl eter:acetic acid = 80:20:1 as developing solvent on silica gel F254, 20 cm x 20 cm aluminium plat. The results showed that hydrolyzed coconut oil contained 5 spots, they were identified as 1 spot of triglyceride at upper, 1 spot of free fatty acid, 2 spots of diglyceride at the middle and 1 spot monoglyceride at the bottom. The condition of enzymatic hydrolysis reaction produce the highest of free fatty acid (37.10%) at 50°C of temperature for 24 hours.</p><p>ABSTRAK</p><p><br />Penelitian ini bertujuan untuk mengetahui suhu dan lama reaksi yang dapat menghasilkan asam lemak bebas (ALB) paling banyak pada proses hidrolisis minyak kelapa menggunakan biokatalis lipase dari Rhizomucor miehei. Hidrolisis dilakukan pada variasi suhu reaksi (35, 40, 45 dan 50oC) dan lama reaksi (6, 12, 18 dan 24 jam). Reaksi hidrolisis dilakukan dalam shaker waterbath dengan pH 7,0 dan kosentrasi enzim 2,5% dari berat substrat. Hasil hidrolisis dianalisis dengan kromatografi lapis tipis (KLT) menggunakan larutan pengembang campuran pelarut heksan:dietil eter:asam asetat = 80:20:1 pada pelat silica gel F254, pelat aluminium 20 cm x 20 cm. Hasil penelitian menunjukkan bahwa hasil hidrolisis minyak kelapa teridentifikasi lima spot yaitu satu spot trigliserida pada bagian atas, 1 spot asam lemak bebas, dua spot digliserida dan satu spot monogliserida pada bagian bawah. Kondisi hidrolisis minyak kelapa dengan lipase dari R. miehei untuk menghasilkan asam lemak bebas tertinggi yaitu pada suhu 50°C selama 24 jam yaitu sebanyak 37,10%.<br /><br /></p>
A New Approach to Combined Sulfide- and Carbonate-Scale Predictions Applied to Different Field Scenarios
Authors: Ness G.. , Sorbie K. S. , Singleton M. A. , Silva D.. , Hinrichsen C.. , Wang Q.. , Chang F. F. 
Published: February 2018

Summary
Unlike other types of inorganic scales, carbonate and sulfide scales are directly correlated to the in-situ concentration of acid gases such as carbon dioxide (CO2) and hydrogen sulfide (H2S), which influence the local pH and availability of reactive species. The common approach to sulfide- and carbonate-scale prediction often does not account for three-phase CO2 and H2S partitioning at different temperatures and pressures throughout the system. This leads to the use of inaccurate compositions and pH values for the mineral-scaling calculations.
In this paper, we apply a rigorous work flow (step-by-step procedure) derived from a compositional pressure/volume/temperature (PVT) model to calculate molecular CO2 and H2S distribution, three-phase relative volume changes, compositional changes, and scale-precipitation trends from the reservoir to the wellhead-separation stage using commonly available surface field data, a full PVT software package, and scale-prediction software of the user's choice.
A simplified version of the work flow was previously applied to high-CO2 and -H2S gas/condensate wells with production of condensed water only (Verri et al. 2017b).
This paper focuses on the field application of our “Rigorous General Work Flow” (Verri et al. 2017a) to North Sea oil wells with high water-cut and medium H2S levels (approximately 2,200 ppmv in the separator-gas phase) to provide sulfide- and carbonate-scale-prediction profiles from reservoir to separator.
The combination of reservoir-, production-, and chemical-engineering models using specific iterative processes (within the work flow) has provided a new and rigorous step-by-step procedure for the prediction of combined sulfide and carbonate scales in oil and gas wells, which can be implemented by anyone using any PVT and scale-prediction software.
Critical Considerations for Analysis of RF-Thermal Recovery of Heavy Petroleum
Authors: Saeedfar Amin , Lawton Don 
Published: February 2018

Abstract
Recently, coupled electromagnetic-reservoir simulators based on full numerical schemes have been developed using commercial software packages. However, simplified analytical and semi-analytical models can provide useful and quick insight of the complicated coupling between radio wave propagation and transport phenomena in heavy oil reservoirs. In this study, we developed simplified coupled EM-thermal models to emphasize on two important aspects of radio frequency heating process, near-field analysis and insulated antenna setups. It will be shown how much thermal error can be introduced when a proper full-wave analysis is not taken into account. We will also demonstrate the thermal advantage of applying an insulated antenna over a bare antenna when radio waves are used for heating purposes. Another key aspect of radio-frequency heating process is to consider dependency of electrical properties to thermal and water saturation conditions. This one is more difficult to verify analytically and it will be done in the second part of this study.
Einkorn (Triticum monococcum ssp. monococcum) in vitro propagation sterilization protocol
Authors: Örgeç Mehmet , Pehlivan Karakaş Fatma , Şahin Günce , Ağıl Ferdi , Zencirci Nusret 
Published: February 2018

Einkorn
is one of the oldest and important wheat species because of its increasing
economic value, agronomical technical properties, and health and sanitary
effects. Therefore, a faster tissue culture production protocol which may
ensure a fast einkorn production is desired.
The tissue culture process first requires an efficient sterilization
technique of the explant to eliminate contamination factors in this hulled
species. In this study, we, thus, aimed to determine the effective einkorn
sterilization process for the removal of contaminating microorganisms without
the loss of germination capacity and viability. We tested 22 following
sterilant combinations with different concentration and exposure time: Ethanol,
Commercial Bleach, Tween 20, Mercury (II) Chloride, and Sterile Distilled
Water. On the other hand, obtained the data were analyzed by one-way ANOVA and
Duncan test, where p≤0.05 was accepted significant. Forty percent commercial
bleach which were applied fifteen minutes eliminated all microorganisms with a
92.6% seed germination. The second-best technique was one minute exposure of
70% ethanol which were followed by 10 minutes exposure of 20% commercial
bleach. This assured up to 89% germination and no contamination. The worst
results came from the mercury (II) chloride with 0% contamination and ≤ 25%
germination rate. Mercury (II) Chloride was both highly toxic on the seeds and
reduced the contamination. Commercial Bleach and Ethanol Chemicals were less
toxic while providing an acceptable sterilization.
QUADCOPTER OBSTACLE AVOIDANCE DENGAN SENSOR INFRAMERAH UNTUK PEMANTAUAN BENCANA ALAM MELALUI UDARA
Authors: Andika I Gede , Yanti Christina Purnama , Cardewa Made 
Published: February 2018

Pemantauan lokasi bencana alam melalui udara dengan helikopter sulit dilakukan karena memerlukan banyak ruang untuk mendarat dan rentan dengan benturan jika diterbangkan pada ketinggian yang rendah. Penelitian ini bertujuan untuk merancang bangun quadcopter obstacle avoidance sebagai solusi alternatif pengganti helikopter. Quadcopter yang dibuat dilengkapi dengan sensor inframerah yang berfungsi untuk mendeteksi adanya halangan. Keluaran dari sensor inframerah berupa LED yang menunjukkan sensor bagian mana yang mendeteksi halangan, serta buzzer sebagai keluaran suara. Quadcopter obstacle avoidance ini diuji di dalam dan luar ruangan dengan digantung pada tiang horizontal, kemudian throttle dinaikkan sehingga motor berputar, kemudian sebuah halangan didekatkan dengan quadcopter. Hasil yang diperoleh dari penelitian ini adalah sebuah prototype quadcopter obstacle avoidance dengan sensor inframerah yang mampu mendeteksi halangan dari 20 cm hingga 80 cm serta mampu memberi respon berupa gerakan feedback dengan tingkat akurasi pada luar ruangan yaitu 61.25%, dan tingkat akurasi di dalam ruangan yaitu 100%.
Analisa User Experience Pada Sistem Informasi Akademik Universitas Pendidikan Ganesha Ditinjau dari Pengguna Mahasiswa
Authors: Widhiani Dewa Ayu Putu Ari , Arthana I Ketut Resika , Pradnyana I Made Ardwi 
Published: February 2018

Penelitian ini bertujuan untuk mengetahui tingkat kepuasan pengguna dan mengevaluasi SIAK Undiksha ditinjau dari pengguna mahasiswa menggunakan metode Usability Testing dengan teknik Firstclick Usability Testing, Performance Measurement, Retrospective Think Aloud (RTA), kuisoner System Usability Scale (SUS) serta memberikan rekomendasi perbaikan terhadap sistem tersebut berdasarkan atas hasil penelitian. Ada beberapa aspek yang dikaji dalam penelitian ini yaitu efektivitas (effectiveness), efisiensi (efficiency), tingkat kesalahan (error), dan kepuasan pengguna (satisfaction) menggunakan SIAK Undiksha ditinjau dari pengguna mahasiswa.Populasi dari penelitian ini yaitu mahasiswa Undiksha dengan melibatkan 385 responden kuisioner SUS dan 20 orang responden usability testing. Hasil penelitian berdasarkan analisis Mann Whitney U-test dan SUS menunjukkan bahwa (1) SIAK Undiksha ditinjau dari pengguna mahasiswa sudah efektif akan tetapi masih terdapat beberapa error yang ditemukan dalam sistem, (2) SIAK Undiksha ditinjau dari pengguna mahasiswa sudah efisien dilihat dari tidak adanya perbedaan yang signifikan waktu pengerjaan tugas kelompok mahir dan kelompok pemula, dan (3) Pengguna merasa kurang puas menggunakan SIAK Undiksha ditinjau dari pengguna mahasiswa dilihat dari skor kuisioner SUS sebesar 61,6.Dengan demikian berdasarkan hasil analisis data tersebut disimpulkan bahwa SIAK Undiksha ditinjau dari pengguna mahasiswa sudah memenuhi kriteria usability baik akan tetapi pengguna belum puas saat menggunakan SIAK Undiksha ditinjau dari pengguna mahasiswa. Hal ini dapat dilihat pada penilaian tingkat efektivitas, efisiensi, tingkat kesalahan dan kepuasan pengguna, SIAK Undiksha ditinjau dari pengguna tersebut hanya berhasil memenuhi 2 dari 4 aspek. Oleh sebab itu, rekomendasi perbaikan dalam penelitian ini difokuskan untuk mengubah tata letak (layout) halaman dan menu navigasi sesuai hasil data penyebab kesalahan (error) pengguna dan menyederhanakan penggunaa Bahasa. Perbaikan dilakukan dengan membuat wireframe halaman utama SIAK Undiksha itinjau dari pengguna mahasiswa, halaman menu prosedur, halaman submenu biodata, halaman ubah biodata, halaman statistic nilai mahasiswa dan halaman cetak kartu rencana studi.
Quality of non-financial information reported by financial institutions. The example of Poland and Greece
Authors: Lament Marzanna 
Published: February 2018

This paper aims is to analyse and verify the applicable principles of Corporate Social Responsibility (CSR) reporting in light of the regulations of Directive 2014/95/EU, as well as to evaluate quality of non-financial information presented in CSR reports of financial institutions in the Polish and in the Greek market. Two research hypotheses have been postulated in connection with this aim: (H1) – The Directive 2014/95/EU contains regulations that will contribute to improved comparability and usefulness of information presented in financial statements. (H2) – financial institutions in the Polish and in the Greek market draft their CSR reports in different ways, which obstructs their comparability.
In order to verify hypothesis (H1), regulations of the Directive 2014/95/EU and specialist literature have been reviewed. In order to verify hypothesis (H2), the author has conducted research into a group of financial institutions in the Polish and in the Greek financial market by examining and analysing CSR reports compiled in 2010–2015 with regard to quality of the information, in particular, its usefulness and comparability. This assessment involved reviewing of: principles of publication and verification of the reports, frequency of their drafting, volume, scope and structure.
It must be concluded neither the existing regulations nor the reporting practices ensure the qualitative features in question. As a consequence, CSR reports are incomparable and unclear. Introduction of sectoral reporting standards in future should be considered, as it would help to improve clarity and comparability of the reports.
USING THE COMMUNITY OF INQUIRY MODEL (COI) TO INVESTIGATE THE QUALITY OF ESL STUDENTS’ NARRATIVE WRITING IN AN ASYNCHRONOUS ONLINE DISCUSSION
Authors: Annamalai Nagaletchimee 
Published: February 2018

The study explored the presences that were evident when six students and a teacher’s online interactions were categorized based on CoI model and how these interactions were able to add quality to the students’ narrative essays in an asynchronous online discussion. This study involved six Malaysian ESL students and a teacher interacting in the asynchronous discussion to complete their narrative writing tasks. The interactions were categorized based on social, teaching and cognitive presences suggested by the CoI model. Data were gathered from online archives and narrative essays scores. The findings reaffirm the presences of social and teaching presences although there was a dissimilar pattern for cognitive presence. Additional research outcome were that of emerging themes related to exam-centeredness, teacher-centeredness and online fatique syndrome. The findings suggest that there is a need for intervention and different instructions from the teacher based on the Krathwohl’s adapted version of Bloom’s Taxonomy.
DESAIN KOMUNIKASI VISUAL DI ERA DIGITAL
Authors: Karnadi Hartono 
Published: February 2018

Budaya berkirim kartu ucapan selamat hari raya saat ini kian jarang dilakukan. Kita pun tak lagi berkirim telegram indah kepada handai taulan. Praktik berkirim ucapan telah tergantikan dengan SMS (short message system), yang lebih cepat, murah dan pasti sampai ke tujuan. Papan-papan billboard kian tergantikan oleh big screen atau videotron yang bersifat audio visual dan atraktif. Poster dan baliho lebih cepat dan efisien bila dicetak dengan teknologi digital printing. Konsumen tinggal memilih bahan dan harga yang enyesuaikan anggran. Seorang fotografer tidak lagi lama menunggu hasil jepretan kameranya. Ia pun sangat yakin dengan kualitas pemotretannya, tinggal tekan tombol shutter, tunggu sekian detik muncul hasilnya. Demikian pula dengan dunia desain grafis, industri grafika, dan bidang-bidang profesi lainnya. Semua dengan serta merta menggunakan teknologi digital. Seakan merasa ketinggalan zaman atau tidak profesional bila tidak bersinggungan dengan digital. Kondisi dan situasi di atas tidak dapat dihindari. Kemajuan dan perkembangan teknologi digital membawa dampak luas. Digitalisasi diberbagai bidang mempercepat perubahan sosial. Semua serba mudah, cepat, tepat, praktis!
Pergerakan Pasukan Untuk Mengejar Musuh Bergerak Menggunakan D* Lite Berbasis Algoritma Pathfinding
Authors: Kholil Mochamad 
Published: February 2018

The movement of agents in the Real Time Strategy game influenced by several factors, one of which is the technique of agent movement within the game environment. Pathfinding in a video game is an artificial intelligence algorithm how to find an agent moves the optimal way in which there are obstacles in the environment. This can be achieved by implementing a pathfinding algorithm to the game. This study of the D* Lite algorithm is able to plan a search path in an game environment, change the environment and moving target to be efficient, optimal and complete for agents and will describe some way of planning applications and provides a solid foundation for further research on methods of search re in artificial intelligence.Keywords: Agent Movement, Real Time Strategy, Pathfinding, D* Lite AbstrakPergerakan agen pada permainan Real Time Strategy dipengaruhi oleh beberapa faktor salah satunya adalah teknik pergerakan agen didalam lingkungan permainan. Pathfinding dalam video game merupakan algoritma kecerdasan buatan bagaimana cara sebuah agen bergerak menemukan jalan optimal dengan usaha minimal sampai pada tujuan. Hal ini bisa dicapai dengan mengimplementasikan suatu algoritma pathfinding pada game. Penelitian ini mengenai algoritma D* Lite yang mampu merencanakan pencarian jalur di lingkungan game dengan environment yang berubah sekaligus objek yang sebagai target bergerak dan menjadikan proses pengejaran target menjadi efisien bagi agen serta memberikan dasar yang kuat untuk penelitian lebih lanjut tentang metode pencarian ulang dalam kecerdasan buatanKata kunci: Agent Movement, Real Time Strategy, Pathfinding, D* Lite
Kajian Inertial Measurement Unit Berbasis Arduino Untuk Dokumentasi Digital Motion Capture Tarian Tradisional
Authors: Nugroho FX. Satriyo Dwi 
Published: February 2018

Visual digital documentation of traditional dance in Indonesia is still limited to photographs and videos recording. Motion capture technology has the potential to add more depth documenting traditional dances. This technology maps the position of the model (in this case the human body) and its motion in three dimensions. There are two popular ways in recording motion capture, using Vision Based Camera and Inertial measurement unit. Inertial Measurement Unit works by combining accelerometer and gyroscope to detect changes in the rotation axis relative lateral and angular. Those changes will be interpreted Arduino micro-controller platform as functions of motions that recorded as a motion capture data. Motion capture data that was obtained from traditional dance in Indonesia can be applied for many things such as education, standardization, documentation, and preservation of cultural assetsKeywords: digital documentatuion, motion capture, inertia measurement unit, angular relative, digital heritage. Abstrak Dokumentasi digital secara visual untuk tari tradisional di Indonesia masih terbatas pada perekaman secara fotografis dan videografis. Teknologi motion capture memiliki potensi untuk menambah kekayaan dokumentasi untuk tari tradisional. Teknologi ini memetakan posisi model (dalam hal ini tubuh manusia) dan pergerakannya secara 3 dimensi. Ada dua cara yang populer dalam perekaman motion capture, menggunakan Vision Based Camera dan Inertial measurement unit. Inertial Measurement Unit bekerja dengan menggabungkan accelerometer dan gyroscope untuk mendeteksi perubahan sumbu rotasi secara lateral dan angular relative. Perubahan ini yang oleh platform mikro-kontroler Arduino akan diterjemahkan sebagai fungsi gerakan yang nantinya akan direkam sebagai data motion capture. Data dokumentasi digital motion capture yang didapat dari perekaman gerak tari tradisional di Indonesia dapat diaplikasikan untuk banyak hal seperti edukasi, standarisasi, pembuatan animasi, game, dan pelestarian aset budaya. Kata kunci: dokumentasi digital, motion capture, inertia measurement unit, angular relative, pelestarian asset budaya
Penciptaan Film Animasi 2D Diadaptasi Dari Puisi “Engkau”
Authors: Hibatullah Muhamad Hadi , Harthoko Tanto , Atmani Agnes Karina Pritha 
Published: February 2018

Abstract Literary works adapted to the film are familiar to the general public. In response to the problem, the animated film "Engkau" is made with the intention to make it easier for a poet to deliver the message of his poems in audiovisual form to the reader in an interesting and unique way through the animated film which is one of the popular media as a medium of delivery. The animated film " Engkau " is a film adapted from a poem entitled "Engkau" in a collection of poems "Aku Ingin Mencumbu Waktu" with 2D animation techniques.The poem entitled " Engkau " from the collection of poems "Aku Ingin Mencumbu Waktu " tells a feeling of someone who admires and loves someone deeply, no matter how long it can prevent and keep him from loving. The poem " Engkau " in each verse will later be adapted into a 2D animated film, making this animation different from the others. Keywords: poetry, adaptation of literary works, poetry animation, poem "engkau"Abstrak Karya sastra yang diadaptasi ke film sudah tidak asing lagi bagi masyarakat umumnya. Menyikapi masalah tersebut, film animasi “Engkau” dibuat dengan maksud untuk mempermudah seorang penyair menyampaikan pesan dari puisinya dalam bentuk audiovisual kepada pembaca secara menarik dan unik melalui film animasi yang merupakan salah satu media yang populer sebagai media penyampaian. Film animasi “Engkau” merupakan film yang diadaptasi dari puisi yang berjudul sama “Engkau” dalam kumpulan puisi “Aku Ingin Mencumbu Waktu” dengan teknik animasi 2D.Puisi yang berjudul “Engkau” dari kumpulan puisi “Aku Ingin Mencumbu Waktu” menceritakan sebuah perasaan seseorang yang mengagumi dan mencintai seseorang secara mendalam, tidak memperdulikan waktu dapat mencegah dan menghambatnya untuk tetap mencintai. Puisi “Engkau” dalam setiap baitnya nanti akan adaptasi menjadi sebuah film animasi 2D, menjadikan animasi ini berbeda dengan yang lain. Kata kunci: puisi, adaptasi karya sastra, animasi puisi, puisi “engkau”
“Burnout” Animasi Dua Dimensi Dengan Teknik Rotoscope
Authors: Rahman Fuazi 
Published: February 2018

Film sebagai media kominikasi massa mempunyai andil yang cukup besar pada masyarakat era digital ini. Animasi merupakan jenis film yang menaik sebagai alternative dari film live shot. Pembuatan film animasi sebagai media komunikasi yang menarik diharapkan mampu menyampaikan gagasan cerita serta memberikan kontribusi positif bagi penonton.Penggunaan teknik rotoscope dalam produksi film animasi ini dikarenakan gagasan atau konsep yang ingin disampaikan dalam cerita mempunyai kesesuaian. Cerita yang disampaikan merupakan kehidupan nyatan dan teknik rotoscope menghasilkan visual yang cukup realis. Teknik ini juha mempunyai kelebihan efisiensi waktu produksi karena teknik ini merupakan teknik menjiplak gambar dari video aslinya. Penggunaan teknik ini pada karya film ini dapat menambah keberagaman teknik pada produksi film khusunya animasi di Indonesia.Produksi film animasi Burnout ini menceritakan tentang pelarian seseorang terhadap masalah-masalah pribadinya yang hanya ada didalam pikirannya. Membangun motivasi diri untuk menghadai masalah ayng ada menjadi tujuan dalam film animasi Burnout ini. Kata kunci: Film, Animasi, Rotoscope, Burnout Abstract Film as a medium of mass communication has a considerable share in this digital era society. Animation is an upgraded movie type as an alternative to a live shot movie. Making animated films as an interesting communication media is expected to convey the idea of the story as well as make a positive contribution to the audience.The use of rotoscope techniques in the production of animated film is because the idea or concept to be conveyed in the story has a suitability. The story delivered is a life nyotos and rotoscope techniques produce fairly realistic visuals. This technique has the advantage of efficiency time juha production because this technique is a technique to trace the image of the original video. The use of this technique in the work of this film can increase the diversity of techniques in film production especially animation in Indonesia.Burnout animated film production is about a person's escape to his personal problems that only exist in his mind. Building your self-motivation to come into trouble is a goal in this Burnout animated film. Keywords: Film, Animation, Rotoscope, Burnout