PENGARUH LAMA WAKTU FERMENTASI TERHADAP YIELD DAN KUALITAS BIOETANOL DARI UMBI GANYONG

Basically, types of root crops such as canna tubers have high carbohydrate levels that have the potential to produce bioethanol. The production of bioethanol consists of several stages of production, one of which is the fermentation process. This process tends to increase the quality and quantity of bioethanol. This study aims to improve the quality and calculate the yield of bioethanol from the raw material of canna tubers. Using the experimental method with 500 grams of canna tubers as raw materials, 1000 ml of water, 20 grams of NPK fertilizer and 14 grams of yeast, then fermented under anaerobic conditions with variations in soaking time, namely 3, 4, 5, 6, and 7 days. ethanol and calculate the yield value to get the best variation of the immersion, then produce large-scale bioethanol with 3 steps of distillation, including: a liebig condenser without adsorbent. distillation on the distillation plate, and adding limestone adsorbent. The results of the distillation process are tested for quality based on the Director General of EBTKE Number: 722K/10/DJE/2013. This study showed that the best soaking time for fermentation with raw materials of 500 grams of canna and 1000 ml of water was 6 days which resulted in a volume of 850 ml of bioethanol solution with an ethanol content of 11.64% and a calculated yield of 36.48%. Furthermore, by producing on a large scale (30 times) until a multilevel distillation process is carried out six times to obtain a volume of 2300 ml of bioethanol solution, it produces 99.6% ethanol content, and a calculated yield value of 87%. Characteristics of methanol content 0.01%-v, water content 0.04%-v, copper content 0 mg/kg, acidity as acetic acid 0.01 mg/L, clear colorless appearance, density 0.7906 gr/cm3 , calorific value 7126.5 Kcal/kg, flash point 11.8°C, and viscosity 0.681 CSP. Keywords: canna tubers, fermentation, bioethanol quality

Rawa Pening Floating Cottage

Floating Cottage is a means of accommodation for tourists to be able to enjoy the atmosphere of the waters by floating, in addition to the natural atmosphere of the mountains and countryside as an added force for tourists. The design of the cottage utilizes the maximum potential of nature in organizing and processing the site. The emphasis of the Contextual Architecture concept relates to the surrounding environment. Characteristic of mass design and building form adopted from Traditional House of Central Java as Contextual Harmonious and addition of some pengapdosian form of leaf as Contextual Contrast. This is so that it can give a unique and deep impression of the beautiful nature and architecture of Central Java. Rawa Pening is an unspoiled natural tourism area. A lake surrounded by mountains is optimally utilized with accessibility and visibility aspects in cottage design

Comparison of Cold and Warm Compresses influence toward Pain in Patients with Extremity Fractures

Background: Fracture is one of the causes of death in the world. Pain is a major symptom reported by patients with fracture.a Nonpharmacology management of pain includes stimulus and cutaneous massage, ice, and heat therapy (cold or hot compress), distraction, guided imagery, hypnosis, and relaxation techniques. Objectives: the purpose of this study was to determine the differences of pain sensation between cold and warm compresses intervention among patients with limb fractures at the Dradjat Prawiranegara Serang Banten hospital. Methods: A quasi-experimental method was conducted with two group pretest and posttest design for each teratments. The study was conducted in dr. Dradjat Prawiranegara hospital Serang Banten. A total of 12 respondent has participated in this study. Pain intensity was measured using a numeric rating scale.The data analysis using univariate analysis and bivariate analysis. Bivariate analysis using T test (T-test) that is difference test of two independent mean. Results: The result shows that the average intensity of pain beforecoldcompresswasgivenwas7andreduce3.13to3.83postintervention.While the average intensity of the pain before given an warm compress was 6 and 3.83 post intervention. (P = 0.000). Conclusions: Judging from the magnitude of change in pain intensity was concluded that warm compress more effectively than cold compress to decrease pain in fracture patients

DESIGN, IMPLEMENTATION AND VERIFICATION OF SOFTWARE CODE FOR RADIATION DOSE ASSESSMENT BASED ON SIMPLE GENERIC ENVIRONMENTAL MODEL

Radiation dose assessment to determine the potential of radiological impacts of various installations within nuclear facility complex is necessary to ensure evironmental and public safety. A simple generic model-based method for calculating radiation doses caused by the release of radioactive substances into the environment has been published by the International Atomic Energy Agency (IAEA) as the Safety Report Series No. 19 (SRS-19). In order to assist the application of the assessment method and a basis for the development of more complex assessment methods, an open-source based software code has been designed and implemented. The software comes with maps and is very easy to be used because assessment scenarios can be done through diagrams. Software verification was performed by comparing its result to SRS-19 and CROM software calculation results. Dose estimated by SRS-19 are higher compared to the result of developed software. However, these are still acceptable since dose estimation in SRS-19 is based on conservative approach. On the other hand, compared to CROM software, the same results for three scenarios and a non-significant difference of 2.25% in another scenario were obtained. These results indicate the correctness of our implementation and implies that the developed software is ready for use in real scenario. In the future, the addition of various features and development of new model need to be done to improve the capability of software that has been developed.Keywords: Radiation dose assessment, software code, radioactive discharge, environment, IAEA SRS-19. PERANCANGAN, IMPLEMENTASI DAN VERIFIKASI PERANGKAT LUNAK UNTUK KAJIAN DOSIS RADIASI BERBASIS MODEL LINGKUNGAN GENERIK SEDERHANA. Kajian dosis radiasi untuk mengetahui potensi dampak radiologi akibat pengoperasian berbagai instalasi yang ada di dalam kawasan instalasi nuklir sangat diperlukan untuk menjamin keselamatan masyarakat dan lingkungan. Metode sederhana berbasis model lingkungan generik untuk menghitung dosis radiasi yang disebabkan oleh pelepasan zat radioaktif ke lingkungan telah diterbitkan oleh International Atomic Energy Agency (IAEA) sebagai Safety Report Series No. 19 (SRS-19). Untuk lebih memudahkan penerapan metode tersebut, maupun sebagai dasar kajian serta pengembangan metode yang lebih kompleks, maka dilakukan perancangan dan implementasi perangkat lunak terkait berbasis open-source. Perangkat lunak yang dibuat telah dilengkapi dengan peta serta sangat mudah digunakan karena skenario kajian dosis radiasi dapat dibuat melalui diagram. Verifikasi melalui komparasi dengan nilai hasil perhitungan di SRS-19 serta hasil perhitungan perangkat lunak CROM. Hasil komparasi dengan SRS-19 menunjukkan adanya perbedaan pada empat skenario yang diuji. Hal ini wajar karena pada SRS-19 perhitungan dilakukan dengan pendekatan konservatif sehingga nilai dosis yang dihasilkan lebih besar jika dibandingkan dengan perangkat lunak yang dikembangkan. Selanjutnya, pada komparasi dengan perangkat lunak CROM, keduanya menunjukkan hasil yang sama pada tiga skenario serta perbedaan yang tidak siginifikan yaitu sebesar 2,25% pada satu skenario. Hasil tersebut menunjukkan bahwa implementasi perangkat lunak telah berhasil dan perangkat lunak tersebut dapat digunakan untuk kajian yang nyata. Kedepannya, penambahan berbagai fitur serta pengembangan model kajian perlu dilakukan untuk meningkatkan kemampuan perangkat lunak yang telah dibuat. Kata kunci: Kajian dosis radiasi, perangkat lunak, lepasan zat radioaktif, lingkungan, IAEA SRS-1

Adherence to Hemodialysis Therapy, Self-efficacy and Quality of Life of Chronic Kidney Disease Patients in the Hemodialysis Room

Hemodialysis is a renal replacement therapy that can prolong a patient’s life. The study aims to determine the relationship between adherence to hemodialysis therapy and self-efficacy with the quality of life of patients with chronic kidney disease in the hemodialysis room of the Cilegon City Hospital in 2019. This study used a quantitative design with a cross-sectional. The population of this study was composed of patients with chronic renal failure who underwent hemodialysis therapy. The number of samples were 47 respondents using the total sampling technique. The method used in this study was the Chi-square test. The results showed that 20 patients did not adhere to hemodialysis therapy (42.6%), self-efficacy (44.7%), poor quality of life was 21 patients (44.7%). A significant relationship was observed between adherence to hemodialysis therapy (P-value = 0.001), self-efficacy (P-value = 0.003), and quality of life. Future researchers are expected to continue this research with different research methods. Keywords: chronic kidney disease (CKD), hemodialysis, compliance, self-efficac

Analisis Pengaruh Kualitas Pelayanan, Harga, Dan Citra Merek Terhadap Kepuasan Konsumen Go-Jek

Analysis of this study is about the influence of service quality, price, and brand image on consumer satisfaction. Study conducted on GO-JEK Services. Samples taken in the study were 100 respondents who used GO-JEK services. The analytical method used is multiple linear regression analysis, validity and reliability test. Based on the results of the analysis found, it can be explained that service quality, price, and brand image have a positive and significant influence on customer satisfaction. In the model formed service quality, price, and brand image variables are able to explain consumer satisfaction variables by 21% and the remaining 79% are still influenced by other variables

Karakterisasi Morfologi Kedondong Parang Karimunjaya

Kedondong Parang Karimunjaya merupakan tanaman lokal yang banyak sekali terdapat di seluruh daerah Pulau Parang dan tumbuh liar tidak dibudidayakan. Identifikasi dan karakterisasi dilakukan secaara ilmiah sehingga hasilnya dapat dijadikan sumber referensi ilmiah yang akurat. Penelitian ini dilaksanakan di Desa Parang, Kecamatan Karimunjawa, Kabupaten Jepara pada Oktober 2018. Indentifikasi karakter morfologi meliputi: habitat, tajuk tanaman, daun, bunga, dan buah. Identifikasi karakter morfologi menggunakan deskriptor dari Direktorat Hortikultura tentang Deskripsi Tanaman Hortikultura Tahun 2017 dan penentuan warna menggunakan color chart Royal Horticulture Society. Tinggi pohon 20 meter berusia 70 tahun. Daun majemuk, bagian yang melebar berada ditengah-tengah, helaian daunnya berbentuk jorong (ovalis), pangkal daun runcing, ujung daun runcing dan tepi daun berombak. Tekstur daging buah berserat masir dengan aroma yang harum dan warna daging buah kuning (163 B). Buah bervariasi dalam ukuran dari sekitar panjang 10-14,5 cm dan lebar 4,5-6,5 cm. Tebal daging buah 2-3 cm dengan berat per buah 500-900 gram. Rasa daging manis sedikit asam. Kedondong Parang Karimunjaya wilayah penyebarannya berada di Pulau Parang, Kecamatan Karimunjawa, Kabupaten Jepara

Karakterisasi Morfologi Kedondong Parang Karimunjaya

Kedondong Parang Karimunjaya merupakan tanaman lokal yang banyak sekali terdapat di seluruh daerah Pulau Parang dan tumbuh liar tidak dibudidayakan. Identifikasi dan karakterisasi dilakukan secaara ilmiah sehingga hasilnya dapat dijadikan sumber referensi ilmiah yang akurat. Penelitian ini dilaksanakan di Desa Parang, Kecamatan Karimunjawa, Kabupaten Jepara pada Oktober 2018. Indentifikasi karakter morfologi meliputi: habitat, tajuk tanaman, daun, bunga, dan buah. Identifikasi karakter morfologi menggunakan deskriptor dari Direktorat Hortikultura tentang Deskripsi Tanaman Hortikultura Tahun 2017 dan penentuan warna menggunakan color chart Royal Horticulture Society. Tinggi pohon 20 meter berusia 70 tahun. Daun majemuk, bagian yang melebar berada ditengah-tengah, helaian daunnya berbentuk jorong (ovalis), pangkal daun runcing, ujung daun runcing dan tepi daun berombak. Tekstur daging buah berserat masir dengan aroma yang harum dan warna daging buah kuning (163 B). Buah bervariasi dalam ukuran dari sekitar panjang 10-14,5 cm dan lebar 4,5-6,5 cm. Tebal daging buah 2-3 cm dengan berat per buah 500-900 gram. Rasa daging manis sedikit asam. Kedondong Parang Karimunjaya wilayah penyebarannya berada di Pulau Parang, Kecamatan Karimunjawa, Kabupaten Jepara

A novel digital forensic framework for data breach investigation

Data breaches are becoming an increasingly prevalent and global concern due to their massive impact. One of the primary challenges in investigating data breach incidents is the unavailability of a specific framework that acknowledges the characteristics of a data breach incident and provides clear steps on how the investigative framework can comprehensively answer what, who, when, where, why, and how (5WH) questions. This paper aims to develop a novel digital forensic investigation framework that can overcome these data breach investigation challenges. The proposed framework utilizes the data breach breakdown phases to analyze data breach incidents according to their characteristics. The main contribution of our work is a novel digital forensic framework for data breach investigation that enhances the 5WH analysis depth by utilizing evidence classification and artifact visualization based on data breach breakdown phases. Furthermore, we design the framework components to provide comprehensive analysis results that make it easier for investigators to summarize the answers to the 5WH questions. To validate the framework, we apply it to a case study of enterprise-level data breach incidents. Based on the case study analysis, the proposed investigation framework successfully provides all the answers to the 5WH questions. This comprehensive answering ability is the study’s fundamental strength compared to other digital forensic investigation frameworks

OTOMASI PENERANGAN PADA SOLAR TUBED ROOM YANG DIOPTIMASI DENGAN LIGHT TRACKER

Permasalahan umum pada penggunaan sistem penerangan untuk ruangan adalah kurangnya perhatian pada usia lampu. Lampu yang menyala 24 jam tanpa henti mengakibatkan umur lampu yang mulanya sekitar 2 tahun menjadi 6-7 bulan. Hal ini mengakibatkan kerugian terus menerus apablia tidak dicarikan solusi. Oleh sebab itu, pada penelitian ini dikembangan otomasi penerangan pada Solar Tubed Room yang dioptimasi dengan Light Tracker. Mikrokontroler yang digunakan adalah ESP8266 NodeMCU V2 dan Arduino Nano. Salah satu mode kendali manual alat pada penelitian ini terkoneksi ke perangkat smartphone melalui jaringan wireless. Pengendalian melalui smartphone hanya dapat dilakukan pada smartphone yang terkoneksi ke alat. Smartphone dapat mengendalikan sistem lampu penerangan secara manual ataupun auto (otomatis) dalam mode dimmer. Sistem lampu penerangan juga dioptimasi menggunakan Light Tracker berbahan Aluminium Flexible Ducting yang berfungsi secara otomatis mencari radiasi cahaya matahari terbesar pada siang hari dengan metode gerak single axis. Berdasarkan pengujian, besarnya intensitas penerangan rata-rata sebuah ruangan yang dilengkapi dengan alat ini adalah sebesar 469,9 Lux dengan error rata-rata sebesar 0,02 %