bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integration of Gas Sensors as an Exhaust Gas Monitoring Device from Green Roasting Process of Various Coffee Beans
Authors: Samsidar  , Sawitri K N , Purbakawaca R , Ridho M , Heriyanti  , Marlinda L , Sutrisno  
Published: August 2019

Abstract
The exhaust gas monitoring system in the coffee roasting process continues to be developed considering the need for more complex roasting coffee beans information. The integrated gas sensor is designed by utilizing a microcontroller controller to see the exhaust gas during the roasting process. The exhaust gas produced during the roasting process is monitored by integrating sensors device to measure exhaust gases (CO, CO2, NOx and SO2). Furthermore, measurements were made by monitoring exhaust gas during roasting of Arabica, Liberica and Robusta coffee beans from Jambi province. The results showed that the total CO concentration in Liberica coffee was 2,121 ppm, Robusta 1,930 ppm and Arabica 1,535 ppm while for CO2 was Liberica 21.3 ppm; Robusta is 22.2 ppm; Arabica is 22.4 ppm, and for NOx is Liberica 303 ppm; Robusta 304 ppm; Arabica is 287 ppm, and the SO2 content for all types of coffee is 0 ppm. The highest exhaust gas concentration occurs after roasting lasts > 20 minutes and at a temperature of 210 - 230°C. It concluded that the integrated gas sensor can be used for the measurement of exhaust gas in the process of coffee beans roasting with the results of measurement of CO exhaust concentration in Liberica coffee is higher than Robusta and Arabica coffee beans.
The effect of drying temperature on chemical composition of chitosan powder from fishbone waste to hydroponic Deep Water Culture (DWC) application
Authors: Ekawati Anita , Arsyad Fitri Suryani , Royani Idha 
Published: August 2019

Abstract
The purpose of this study is to increase the added value of fishery waste, especially cork fish bones that have not been optimally utilized. The benefits of chitosan powder from cork fish bones can be used as a nutrient solution containing calcium in the DWC hydroponic system. The results of this study of cork chitosan bone powder obtained 22.65% Calcium Levels, 2.33% Moisture Content, 0.69% Ash Levels, Protein Levels 92.61%, 140 µm Particle Size, and 93.72% white degrees with microscopic properties obtained density ρ = 0.1 Kg / m3, Porosity P = 61%, Strength of Pressure chitosan powder in water σ = 0.13 Pa, Tensile strength of plant roots σ = 100.63 N / m3 Plant strain of ε = 6.14, and Young’s Modulus E = 16.39 N / m3. The hydrolysis process is carried out to obtain purer calcium chitosan powder with finer size fish so that it is easily absorbed by hydroponic plants.
The effect of atrazine concentration on galvanic cell potential based on molecularly imprinted polymers (MIPS) and aluminium as contact electrode
Authors: Royani Idha , Assaidah  , Widayani  , Abdullah Mikrajuddin , Khairurrijal  
Published: August 2019

AbstractPotentiometric sensors had been fabricated by employing the Atrazine MIPs as the working electrode; Aluminum (Al) as the electrode potential. A glass with diameter 3 mm and 6 mm as the vessels for chemical solution. The sensor target was a test solution of Atrazine with different concentration. The potential measured between the electrode contact and reference were increase by the rise of Atrazin concentration. The graph of potential cell versus logarithm of concentration revealed two slopes for Al contact. It implied that the potentiometric sensor was sensitive in the range of concentration 0.44-0.55 mM. Reevaluation of the sensor was conducted 3 months later by following the same procedure. Still, the graph showed a consistent curve that prove sensor stability.
An analysis of Coulomb stress change and triggering interaction toward seismic activities in the area West Sumatera within January 2000-June 2018
Authors: Asmaniar  , Affandi Azhar K , Sailah Siti , Ardiansyah Sabar , Wafiazizi Milzam 
Published: August 2019

Abstract
The West Sumatra region is one of the areas prone to earthquake disasters caused by 3 factors. First, namely the Subduction Zone, which is the meeting of two large tectonic plates of the Indian Ocean Plate subducting below the L200 plate of the Eurasian Continent. Second, the existence of the Mentawai Fault which is a horizontal fault due to the sloping subduction process around the Mentawai Islands. Third, the existence of the Sumatran Fault that occurs due to the existence of the Indo-Australian plate which crashes into the western part of the island of Sumatra tilted, resulting in pressure. This study aims to analyze the coulomb displacement of stress and trigger interactions on seismic activity in the West Sumatra region from January 2000 to June 2018 using earthquake data from the United States Geological Survey (USGS) catalog sourced from Global Centroid Tensor Moment Catalog (CMT) earthquake data, United States Geological Survey Catalog (USGS), International Seismological Center Catalog (ISC), ISC-EHB and Meteorology and Geophysics Agency (BMKG), covering the boundaries of -4° SL- 1°NL and 96° - 104°EL. With earthquake magnitude (Mw) ≥7 SR and depth of 1 to 500 km for calculation of Coulomb Stress. Whereas for seismicity later with magnitude Mw ≥ 3.0 up to 9.0 depths of 1 to 500 km Based on analysis of the earthquake on September 12th, 2007 Mw = 8.5 is a trigger earthquake that triggered all significant earthquakes Mw ≥7 SR, earthquake on September 13th, 2007 Mw = 7.9 is a trigger earthquake that triggered the earthquake that occurred on September 13th, 2007 Mw = 7.0 and February 25th, 2008 Mw = 7.2, the earthquake of February 25th, 2008 and September 30, 2009 was a category of non-trigger earthquakes while the earthquake was significant October 25th, 2010, distribution of stress changes Positive Coulomb is more dominant compared to the negative Coulomb voltage change distribution. This means that after a large earthquake occurred on October 25th, 2010, the Mentawai segment area still has a high accumulation of stress.
Sea surface temperature variability in the Makassar strait during ENSO (El niño Southern Oscillation) from the Terra-MODIS data sets
Authors: Purwandari R N , Mubarrok S , Mandang I 
Published: August 2019

Abstract
ENSO (El Niño Southern Oscillation) is an anomaly phenomenon of ocean-atmosphere system in the Pacific Ocean. This phenomenon also affects the condition of SST (Sea Surface Temperature) in Indonesian seas, especially Makassar Strait. The condition of SST is influenced by water mass from the Pacific Ocean that flows into Makassar Strait Indonesian Throughflow (ITF). The purpose of this study is to analyse the relationship between the SST and ENSO phenomenon in Makassar Strait. Oceanic Niño Index (ONI) used todeterminethe extreme ENSO events (El Niño and La Niña), and we compared the maximum and minimum value of SST between those events. The data used in this study is monthly average of SST level-3 from Tera-MODIS satellite and processed using software SeaDAS (version 7.3.2). During 17 years (2001 – 2017) there were 6 La Niña Phenomenon and 4 El Niño phenomenon. The result from this research indicates a relationship between SST and Enso Phenomenon, where the SST range in La Niña condition is higher that El Niño condition. The correlation value is 0.109. The monthly average of SST at La Niña Condition in the Makassar Strait has a values between 29.66 °C to 30.25 °C, while SST in El Niño condition is ranged from 29.91 °C to – 30.23 °C.
The attainment of 100 percent electrification ratio in the archipelago of Indonesia by people way electricity initiative
Authors: Legino Supriadi , Arianto Rakhmat , Pasra Nurmiati 
Published: August 2019

Abstract
The electrification ratio in Indonesia has reached over 90 percent already but it is not easy to attain the rest of people who have not gotten the light because they are living in the scattered and isolated areas over several thousand islands in the archipelago of Indonesia. Conventionally, the electricity service in Indonesia is developed by using a centralized and interconnected of various large scale units of power plants. However, many big project of a large size power plant is currently facing many challenges including land and acquisition, financial closing, complex permit procedures, and right of way for transmission lines. As a result, the cost of such conventional system cannot be offset by the expected efficiency from a better reliability and economies of scale of such conventional system. To address this problem, the School of Technology STT PLN Jakarta, proposes an initiative namely ListrikKerakyatan (LK), which is a simple and small scaleself manage electricity development by local people empowerment using renewable energy available around the communities. After passing several pilot projects, This LK initiative has already successfully implemented in Klungkung District, Bali, using the model, called TOSS (TempatOlahSampahSetempat), stands for localized municipal waste treatment. The pilot project shows that a 30 kW gasifeier genset including its associated unit TOSS for 3 ton of waste is cost around USD 40 thousands, the cost of which is still less than rural funding available from national budget. LK needs relatively little operational cost since its fuel is made from municipal waste.
Natural rubber composites for solid tyre used for forklift tensile properties and morphological characteristics
Authors: Nasruddin  , Bondan Aprillena T 
Published: August 2019

Abstract
The engineering of natural rubber and synthetic rubber into vulcanized solid tyres for forklifts has been carried out to obtain the optimum ratio of formula and process temperature according to the standards of solid tyre commercial forklifts. Composite formulated materials consist of natural rubber, synthetic rubber, carbon black, silica, calcium carbonate, and coal fly ash, while the temperature, time, and other process materials are fixed variables. The results of testing the mechanical properties of forklift solid tyres for formula C are as follows: specific gravity1.195 g/cm3 hardness78 Shore A, tensile strength 17.3 Mpa, tear strength 55.2 kN/m, abrasion resistance 160.8 mm3 modulus 300% is 6.6%, and ozone resistance at 50 pphm, 20% strain, 24 h, 40 °C is no cracks.
Synthesis and characterization of meropenem imprinted polymer
Authors: Sirumapea Lasmaryna , Ali Zulfikar M , Bachri Amran M , Alni Anita 
Published: August 2019

Abstract
Meropenem imprinted polymer (M-MIP) has been successfully synthesized. It is prepared by using meropenem (MERP) as template and acrylamide as functional monomer. For comparison, non-imprinted polymer (NM-MIP) was synthesized in the absence of MERP. The synthesized polymers were then characterized by infrared spectroscopy (IR) and thermogravimetry analysis (TGA). Extraction of template from polymer was conducted using soxhletation method and methanol-acetate acid (85:15) as the leaching solvent.. The prepared M-MIP showed higher adsorption capacity than the NM-MIP. Adsorption capacity of MIP and NIP were 4.8942 mg/g and 1.0078 mg/g respectively.
Determination of quality parameters in nata de cocolawak as hepatoprotector functional food
Authors: Solihah Indah , Miksusanti  , Novita Rennie Puspa , Ramadhan Sandy Yoga 
Published: August 2019

Abstract
One of the hepatotoxic condition is caused when consuming large amounts of drugs induced liver injury for a long period of time, such as in TB (tuberculosis) treatment [1]. One of the solutions to prevent the occurrence of hepatotoxicity symptoms in TB patients is by consuming temulawak (Curcuma xanthorriza Roxb.) supplements [2]. Temulawak supplement was given in the form of dessert nata de cocolawak to increase patient interest in consuming it because it is served in a better taste. Parameters product quality of food was determined based on SNI (Indonesian National Standard). This research was conducted in order to increase the economics and environment value of nata de coco products as a functional food. Based on the measurement results, the quality of nata de cocolawak products meets most of the SNI parameters for nata de coco products. Nata de cocolawak products have 9.56% of sugar, 2.11% of crude fiber, level of mineral content are 3.63 mg/Kg of iron, 58.25 mg/Kg of calcium, and 25.73 mg/Kg of zinc, level of metal contaminant are 0.005 ppm of Pb, 0.212 ppm of Cu, and negative levels for As. The Total plate count (TPC) on the product to measure microbial contamination is 5.5.102 CFU/g. Curcumin content as an active compound in the product is 1.306mg/g of sample. The treatment group had smaller ALT, AST, and ALP values than the placebo group. But statistically, these values did not differ significantly (p> 0.05).
Adsorption of congo red using Mg/Fe and Ni/Fe layered double hydroxides
Authors: Hidayati N , Apriliani D R , Helda  , Taher T , Mohadi R , Elfita  , Lesbani A 
Published: August 2019

Abstract
Layered double hydroxides with different divalent ions i.e. Mg/Fe and Ni/Fe were synthesized using coprecipitation method at basic condition. Materials were characterized using X-Ray diffraction and FTIR analyses. Furthermore, Mg/Fe and Ni/Fe layered double hydroxides were applied as adsorbent of Congo red dye in aqueous medium using batch system. Adsorption of Congo red on layered double hydroxides was investigated through kinetic and thermodynamic studies. X-ray diffraction analysis showed that unique diffraction of layered materials were identified at 2θ diffraction 11.33°, 29.55°, 59.66° (Mg/Fe) and 11.41°, 29.40°, 60.40° (Ni/Fe). Interlayer distance of Mg/Fe and Ni/Fe layered double hydroxides was 7.80 Å and 7.75 Å, respectively. IR spectrum of Mg/Fe and Ni/Fe layered double hydroxides showed that vibration of layered material was appeared at 1381 cm−1 (νN-O; nitrate), 347 cm−1 (νMg-O; layered double hydroxides), 586 cm−1 (νFe-O; layered double hydroxides) for Mg/Fe and 1381 cm−1 (νN-O; nitrate), 493 cm−1 (νNi-O; layered double hydroxides), 516 cm−1 (νFe-O; layered double hydroxides) for Ni/Fe. Kinetic pseudo second order was fitted than pseudo first order kinetic model for adsorption of Congo red with R ± 0.99 for both Mg/Fe and Ni/Fe. The rate of adsorption K
2 for Mg/Fe and Ni/Fe layered double hydroxides was 0.008 g.mg−1min−1 and 0.0058 g.mg−1min−1. Adsorption of Congo red on Mg/Fe and Ni/Fe layered double hydroxides was well described and following Freundlich adsorption isotherm model shows physical adsorption process on layered double hydroxides.
Modification of cellulose with acetic acid to removal of methylene blue dye
Authors: Hariani Poedji Loekitowati , Riyanti Fahma , Kurniaty Asri 
Published: August 2019

Abstract
The study on cellulose modification with acetic acid to cellulose-acetate has been carried out. Cellulose is extracted from the kepok banana peel (Musa paradisiaca L.). Modified cellulose acetate was characterized by FTIR spectroscopy and SEM-EDS. Cellulose acetate to removal of methylene blue with adsorption parameter include initial concentration (10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 mg/L), pH solution (3, 4, 5, 6, 7, and 8) and contact time (15, 30, 45, 60, 75, and 90 minutes). The peak of FTIR cellulose acetate obtained by functional groups -OH, C-H, C=O, and C-O esters. The morphology of cellulose-acetate has a more homogeneous than cellulose. Adsorption of cellulose-acetate on methylene blue optimum at an initial concentration of 90 mg/L, pH of solution 6, and contact time of 30 minutes. The adsorption kinetics corresponds to pseudo-second order and adsorption equilibrium corresponds to Langmuir isotherms with adsorption capacity of 42.107 mg/g.
The Rationality of Antihypertensive and Oral Antidiabetic Patients with Chronic Kidney Disease with Hypertension and or Type 2 Diabetes Mellitus in RSI Siti Khadijah Palembang
Authors: Puspa Novita Rennie , Herlina  , Beumaputra Arya Prasetya , Hidayah Arini Alfa 
Published: August 2019

Abstract
Chronic Kidney Disease (CKD) is defined as a condition of kidney damage occurring for 3 months or more with a decrease in Glomerular Filtration Rate (GFR) of less than 60 mL/min/1,73m2. The etiology of CKD includes hypertension and type 2 diabetes melitus (DM). The existance of irrational using of antihypertensive drugs and oral antidiabetics in CKD patients with hypertensive etiology and or type 2 diabetes melitus leads to research on the rationality of antihypertensive and oral antidiabetics. This study aims to evaluate the rationality of antihypertensive and or oral antidiabetics of patients with kidney disease with hypertension and or type 2 diabetes mellitus in RSI Siti Khadijah Palembang. This research was done by descriptive analysis method, data collection was done prospectively. The data obtained were 5 samples that suits exclusion criteria as well as 20 samples that suits inclusion criteria. The results of evaluation of antihypertensive drug use were found to be 100% precise indication, 100% precise dose, 95% precise patient, 90% precise drug, and 10% of patients experienced side effects. The evaluation of the use of OAD were 100% precise indication, 100% precise dose, 100% precise patient, 100% precise drug, and 100% of patients had no side effects.
Utilization of remote sensing imagery data to determine the priority location of green open space as child-friendly integrated public space in Palembang City
Authors: Nafiudin Nurrohman , Ardiansyah  , Rokhmatuloh  
Published: August 2019

Abstract
Palembang is a metropolitan city in Indonesia. As the second largest city in Sumatra, the population of Palembang in 2016 was 1,602,071 people, with a population density of 3,999 people / km2. Meanwhile, the area of green open space has been reduced every year. Based on Minister of Public Works Regulation Number: 05/PRT/M/2008 concerning Guidelines for the Supply and Utilization of Green Open Space in Urban Areas, the percentage of urban areas used as green open space is a minimum of 30% of the total urban area, consisting of 20% public green open space and 10% private green open space. The existence of remote sensing imagery and geographic information systems, could help in determining the priority location of green open space as a child-friendly integrated public space in Palembang. The imagery that used in this research is Landsat 8 imagery, analyzed using ArcGIS 10.3. The research method is a quantitative method using a tiered approach. In general, the final result of the study is in the form of a map of priority locations for child-friendly integrated public space. The 5 Ulu urban village is the location that has the greatest potential to be developed into a child-friendly integrated public space.
Enhanced photocatalytic CO2 reduction activity of silvered titania prepared by wet deposition method
Authors: Handoko C T , Huda A , Bustan M D , Yudono B , Gulo F 
Published: August 2019

Abstract
Titania (TiO2) was successfully modified with Ag nanoparticles by wet deposition method. The established structures adopt the anatase crystal structure and contain a mixture of Ag° and Ag1+ species. The Ag loading triggers extended absorption in the visible light region. Furthermore, the Ag loading improves the photocatalytic CO2 reduction efficiency compared to the pure TiO2. The optimal Ag loading is 2% molar ratio of Ag versus TiO2 and the photocatalytic activity will decrease with higher Ag loading. This improved efficiency may be attributed to the synergistic effect between electron trapping and Surface Plasmon Resonance (SPR) phenomenon of Ag nanoparticle on TiO2 surface.
Microplastic contamination on Anadara granosa Linnaeus 1758 in Pangkal Babu mangrove forest area, Tanjung Jabung Barat district, Jambi
Authors: Fitri Syaidah , Patria M P 
Published: August 2019

Abstract

Anadara granosa is an important food source for people in Tanjung Jabung Barat District, Jambi. This study uses samples of cockle, sediment and water. The results showed a 100% sample containing microplastic. The types of microplastic found are fiber, fragments and films. The average microplastic amount in A. granosa individuals was 434 ± 97.05 particles/individuals. Fiber is the type of microplastic that is most commonly found in samples of cockles, sediments and water. In the blood cockles sample, fiber was found as much as 180.6 ± 21.22 particles/individual and 4.1 ± 0.43 particles/g cockle. Fiber is also found with high concentration in water samples of 128.3 ± 0.15 particles/L. The river is indicated as a microplastic source to the sea. The station sample 1 in 100 m near the river mouth has a higher microplastic concentration with an average of 448.3 ± 53.92 microplastic/individual, compared to station sample 3 which is only 420.3 ± 42.66 microplastic/individual.
Propagation for conserving endangered taxol producing tree Taxus sumatrana through shoot cuttings technique
Authors: Susilowati A , Rachmat H H , Kholibrina C R , Hartini K S , Rambe H A 
Published: August 2019

Abstract

Taxus sumatrana or commonly known as Sumatran yew is native endangered taxol producing trees from Indonesia and promising drug for cancer source. Due to very limited and restricted natural growing habitat, small population size and the tendency of habitat deterioration, their sustainable occurrence is facing a serious threats. Urgent task for conserving this species was needed. Shoot cutting is promising methods for solving natural regeneration problems of this species. This research was conducted to determine appropriate shoot cutting technique for propagating the species and hence conserving Sumatran yew. Completely Randomized Design Factorial with 2 factors and 20 replications was used in this research. The first factor was cutting medium the second factor was auxin addition. The observed parameters were survival rate, rooting percentage, primary root number and primary root length. The result showed that the percentage of rooted cuttings were varied from 50 to 65 percent depend on the treatment. Cutting media and auxin treatment significantly only affected primary root number. Combination of soil and husk with auxin addition produced the highest rooting percentage.
236U identification in the new AMS beamline at the TANDAR accelerator
Authors: de Jesús J , de Barbará E , Arazi A , Fernández Niello J , Martí G V , Abriola D , Cardona M A , Gollan F , Hojman D , Pacheco A J , Samsolo N 
Published: August 2019

Abstract

236U (T
1/2 = 23 My) is an excellent monitor for nuclear contamination in the environment. Indeed, spent nuclear fuels present isotopic ratios 236U/238U several orders of magnitude higher than natural samples. 236U also provides a useful fingerprint to identify and trace nuclear material for safeguards purposes. Here we describe a new beamline for the discrimination of 236U using the accelerator mass spectrometry (AMS) technique. This system comprises a Wien velocity filter and a 6.7 m long time-of-flight (ToF) path with a focusing quadrupole. The ToF is determined by a time zero detector and a surface barrier detector, which also provides an energy measurement. The capability of the system to discriminate 236U from the much more abundant isotopes 235U and 238U is shown. While sensitivity values of 236U/238U∼ 10−8 were achieved, ongoing works aim to improve this performance.
The low energy physics of quarkonium suppression in heavy ion collisions
Authors: Abreu L , Navarra F S , Nielsen M 
Published: August 2019

Abstract
In the late stage of relativistic heavy ion collisions there is a hadron gas phase, where particles interact at energies of the order of the temperature, i.e., ≃ 100 − 150 MeV. We discuss heavy quarkonium production and dissociation in this hot hadron gas. We review the theory giving special emphasis to our recent works on J/ψ and ϒ suppression in interactions with pions.