bluuebunny/crossref_metadata_2025 huggingface dataset:
Performance of dethridge wheel as low head power generator and loss analysis
Authors: Heriyani O , Mugisidi D , Luhung R A , Djeli M Y , Fikri A
Published: November 2019

This research to measure the performance of dethridge wheel using a very low head as a driving force and analyze losses in the testing system. The parameters measured in this research are flow rate (m3/s), water velocity (m/s), water level (m), torque (Nm), and rotation (rpm). Debit is a variabel that is given treatment with variations in the difference between the initial flow rate and the next is 0.002 m3/s. The highest efficiency resulted in the first flow rate of 43.314% with hydro power of 1.862 watts and the power of the water wheel 0.806 watts. The higher increase flow rate causes the losses that occur are also grater, the state of the flow is more turbulent, and the loss due to force and fiction increase water.
Deposition Time Variation on Thickness and Resistivity of Cu/Ni Thin Film Obtained by Magnetic Field-Assisted Electroplating Process
Authors: Khansa Muthi’ah Lutfia , Toifur Moh. , Khusnani Azmi , Pramudya Yudhiakto
Published: November 2019

Thin films of Cu/Ni have been synthesized by the electroplating method assisted by a magnetic field on the variation of deposition time. The use of magnetic fields in the deposition process to increases the rate of electroplating and reducing the effect of hydrogen evolution so that the surface morphology of the layers becomes homogeneous. Deposition time affects the thickness of the formed layer. The electroplating is carried out at a DC voltage of 1.5 volts, the magnetic field of 200 gauss, a solution temperature of 60 °C, and an electrode distance of 4 cm with Cu as a cathode and Ni as an anode. The electrolyte solution made from the mixture of H3BO3(30 g), NiCl2(195 g), NiSO4(45 g), and H2O (750 ml) and deposition times varied from 5 s - 45 s with intervals of 10 s. The characterization was done by thickness test using the calculation of the mass, and resistivity of the Ni layer by using the four-point probe. The results indicate that the deposition time is proportional to the thickness of the formed layer and inversely proportional to the resistivity. Ni layer thickness ranges from 1.48 x 10-2μm to 5.02 x 10-7μm. while the sheet resistivity is from (4.87 ± 0.02) x 10-3Ω/sq to (1.38 ± 0.06) x 10-3Ω/sq.
Numerical simulation of the width and angle of the rotor blade on the air flow rate of a 350 kW air-cooled eddy current dynamometer
Authors: Sinaga Nazaruddin
Published: November 2019

Design of cooling part of air-cooled eddy current dynamometer plays an important role since the temperature rise will dramatically drop the load capacity. The research aims to investigate the effect of the rotor design on the air flow rate of a 350 kW air-cooled eddy current dynamometer, which has 16 blades and a rotor diameter of 520 mm. The impacts of the rotor blade width and rotor speed, as well as inlet and outlet angle, were analyzed against the air flow rate. The variation of the blade width was 50 - 90 mm, the inlet angle was 55° - 73°, the outlet angle was 17° - 35°, while the rotor speed was 750 to 3000 rpm. The finite volume method was used to solve the problem. It was found that the addition of the blade width would increase the air flow rate so that it could increase the heat transfer rate and the power absorbed capacity. There were an optimum inlet and outlet blade angle, which generated the maximum air flow rate. The optimum inlet and outlet angle was 64° and 26°, respectively. The study concluded that there are optimum parameters which give the best dynamometer performance.
Enhancements in cure rate index and mechanical properties of silica-filled natural rubber using octadecanol-fatty alcohol
Authors: Surya I , Ginting M
Published: November 2019

The enhancements in cure rate index and mechanical/tensile properties of natural rubber (NR) filled with silica because of the addition of octadecanol (OCD)-fatty alcohol (FA) were investigated. The silica as a reinforcing filler was compounded into the NR at a fixed loading, 30 parts per hundred rubber (phr.). The OCD-FA was derived from the oil of palm kernel and compounded into the NR as an additive agent. The loading variations of OCD-FA were 0 to 4 phr. It was found that the OCD-FA functioned as a curative and plasticizing agent for the silica-filled NR compounds. As a co-curing agent, the OCD-FA enhanced the time of scorches and cure rate index-CRI of the compounds of NR. A higher the OCD-FA loading caused in a higher CRI degree. As a plasticizing agent, the OCD-FA decreased tensile moduli but increased elongation at break. It was also found that the OCD-FA increased both tensile strength and abrasion resistance of the compounds of NR up to a 2 phr. of loading. The addition of OCD-FA with a 2 phr. of was an optimum loading for the compounds of NR.
Sensor Fabrication for Determination of Cadmium Using Nafion/Ionic Liquid/Graphene Composite with Thick Film Technology
Authors: Tresnawati Teni , Debataraja Aminuddin , Manurung Robeth Viktoria
Published: November 2019

The cadmium (Cd (II)) detection sensor consists of working electrode, counter electrode and reference electrode made with thick film technology on sensitive material-based carbon electrodes (G/N/IL/SPCE) and coated with Bismuth film. Carbon (C) paste, Ag | AgCl is used as working electrode, counter electrode and reference electrode material on alumina substrate by screen printing. The working electrode was doped with Graphene (G), Nafion (N) and Ionic liquid (IL). Furthermore, Bismuth-Film (BiF) is coated with electrodeposition on the surface of the working electrode. Electrode characterization with SEM is conducted to see the morphology of sensitive materials. It showed that the particles were distributed evenly on the surface of the electrode with spherical particles. Analysis using EDS shows the element’s atomic composition is C 91.57%, N 3.48%, O 3.23%, Bi 0.01%. The performance of the cadmium sensor was tested with a potentiostat in a standard Cd solution with a concentration of 0.005 mgL-1– 1 mgL-1indicating an average output voltage range of 10.36 volts - 10.37 volts. This can be explained that the sensor can detect Cd (II) content properly according to performance.
Fuzzy Features for Facial Shape Classification on Panoramic Dental Image
Authors: Nafi’iyah Nur , Fatichah Chastin
Published: November 2019

Research on human face shape identification can assist forensic teams in reconstructing an unidentified victim’s facial features. Human face shape identification using panoramic dental imaging is suitable for use by forensic teams in identifying a large number of victims due to the teeth’s ability to withstand heat of up to 1,000°C. This study proposes an application for face shapes classification on panoramic dental image using fuzzy features and decision tree method. It will be used to assist forensic scientists in reconstructing unidentified people identifying numerous victims from their facial features. There are three classifications of human face shapes, namely oval, tapered, and square. The steps in this study are digitizing panoramic dental images into files; segmenting the upper jaw’s incisor teeth; then extracting the features by area, parameter, width, length, width-to-length ratio, area-to-parameter ratio, center_x and center_y. Fuzzy theory is used to convert numeric features into category features, while decision tree method will be used for training features. The experimental results show that the proposed method obtain accuracy 67% of 42 panoramic dental image.
Link quality decrement and spectrum crowded impacts to wireless local area network performances
Authors: Suherman S , Rambe A H , Mubarakah N
Published: November 2019

Wireless local area networks (WLANs) are now preferred for high speed internet connections. Compared to cable network, radio propagations are more prone to errors and interferences. The increasing internet users push more access points (APs) installations. Moreover, mobile devices tethering work at the same channels. Since the networks operate on the free license frequency bands, problems are emerged when many collocating APs work at the same area. As results, network performances may decrease. This article investigates how the radio link quality decrement as well as the crowded APs affect user performances. System modelling in Java and repeating simulation help the investigation. As results, it is proven that network performances, such as delay, throughput and packet collisions are affected by those conditions. Link quality decrement up to 1/10 causes packet transmission delay increasing 2.5 times which causes throughput drops about 30% in unsaturated condition. Meanwhile, crowded APs worsen network performances by leaving only 8% throughputs when collocating APs increase from 2 APs to 10 APs.
Development of Door Safety Fingerprint Verification using Neural Network
Authors: Yudhana Anton , Sunardi  , Priyatno
Published: November 2019

Fingerprints can be used as natural keys. The unique fingerprint of a human being is potential for the security system. This research develops the door safety fingerprint verification using Neural Network. The component used in this research is fingerprint C3 as input processed by Arduino Uno ATMega 2560. After a fingerprint scanning process is done, the microcontroller identifies the fingerprint image. From the microcontroller forwarded the relay module process with solenoid output. Arduino can be read by a computer using the Arduino IDE. Identification during registration via C3 sensor verified using the MATLAB application with the Neural Network method. The design created produces forward and backward solenoid motion, after being given an electric current between 5 to 12 Volts. The MATLAB application will verify the fingerprint image and display the image from the results of the verification done with the user. Research has been tested 10 times with various types of fingerprints with 100% verified so that this study was declared successful.
Snake Fruit Seeds Flour-Fortified Jelly for Supplementary Feeding in Adolescent Girls with Anemia
Authors: Nugraheni M A , Indarto D , Pamungkasari E P
Published: November 2019

Anemia still becomes a public health problem over the world. Adolescent girls are one of the most suspectible groups who suffer anemia and have significant impacts on their health and study achievement. Fortification with high Fe natural ingredients is commonly used to overcome anemia in public setting. Therefore, the aim of this study was to evaluate the effect of snake fruit seed flour (SSF) on body weight (BW) and BMI/age of adolescent girls with anemia. A total of 20 adolescent girls participitated in this study and randomly divided in control group and treatment group. They received 3 × 100 g jelly/week for 8 weeks. BW and BMI/age was measured in day 0, 30, and 60. Collected data were analyzed using paired t-test and ANOVA and p value < 0.05. Average of BW in control group was higher than in treatment group but it was not statiticaly different (p = 0,374). Average of BMI/age in control group was higher than in treatment group but it was not statiticaly different (p = 0,348). Administration of SSF does not influence BW and BMI/age in adolescent girls with anemia. Further investigation is required to verify wether or not SSF contains high carbohydrate and fibers.
Growth of Sunu Grouper (Plectropomus leopardus) Larvae That Given Rotivera (Bachionus rotundiformus) Enriched with Taurine and Glutamine
Authors: Rostika R , Iskandar  , Herawati T , Bangkit I , Banthani G , Dewanti L P
Published: November 2019

This study aims to determine the effect of taurine and glutamine enriched Brachionus on the growth and survival rate of Sunu Grouper (Plectropomus leopardus). This research was conducted in Marine Research and Fisheries Extension Center Gondol, Bali. The study was conducted for 1 month on September 2017. The research method used was using Completely Randomized Design (CRD) consisting of 4 treatments and 4 replication, namely treatment A (without Taurine and Glutamine; (B) 0,5 gram Taurine / 10 L media; (C) 0,5 gram Glutamine / 10 L media; (D) 0,5 gram Taurine and 0,5 Glutamine / 10 L media. The age of Sunu Grouper was D-2 until D-10, parameters observed were Survival Rate, Average Daily Length, Relative Growth Rate, number of Brachionus in the digestive tract, and water quality. Which included DO, temperature and pH. Data were analyzed using analysis of variance with F test with 95% confidence level and the difference between treatments was tested by Duncan multiple-range test, then water quality was analyzed descriptively by comparing to related literature and water quality standard according to SNI 1999. The results showed that the use of 0,5 gram Taurine and 0,5 gram Glutamine enriched Brachionus, had an effect on the growth of Sunu Kerapu.
Biocellulose isolated from the waste of pinecone flower (Pinus merkusii Jungh Et De Vriese)
Authors: Lusiana S E , Aisiyah M M , ‘Uyunin U Z , Nasihin Z D , Srihardyastutie A , Rahman M F , Masruri M
Published: November 2019

A bio-cellulose isolated from pinecone flower waste has been isolated by two type procedures. The first method is commonly used in industrial protocol. It is undergone via delignification and bleaching processes. In the delignification process provide a black-liquid of lignin waste, meanwhile the bleaching process afford neutralized clear liquid. The bio-cellulose is the main product. On the hand, the second method is initiated by soxhlet extraction using three different solvents i.e. n-hexane, ethanol and toluene, respectively. The extraction process produces organic hexane extract, ethanol extract, and toluene extract. All these extract have different appearance in color and prospective. Further delignification and bleaching process provide black lignin waste and neutralized liquid waste. The bio-cellulose still also become a major product.
Genotype and Serotype Identification of Hepatitis B Virus in Chronic Hepatitis B Patients Treated with Telbivudine
Authors: Purnamasari Y , Tien  , Arimaswati  , Syarifin A N K , Ali A , Massi N
Published: November 2019

Hepatitis B is an inflammatory liver disease caused by hepatitis B virus (HBV). In Indonesia, the prevalence of Hepatitis B Surface Antigen (HBsAg) is 9.4%, categorizing the country as endemic hepatitis B. HBV has been classified into at least ten genotypes and four serotypes. Each genotype has different clinical significance and virologic characteristics, which can be an independent risk factor of Hepatocellular Carcinoma in addition to the male sex, older age, and positive Hepatitis B Envelope Antigen status. Telbivudine antiviral therapy suppressed the virus, but in case of resistance mutations, the mutant might grow continuously due to drugs inefficiency. This study aimed to detect the genotypes and serotypes of HBV in hepatitis B chronic patients after 12 weeks of telbivudine treatment. The subject of this study involved 26 patients with chronic hepatitis B, receiving 12 weeks treatment of telbivudine in the gastrohepatology division of the RSUP Wahidin Sudirohusodo hospital. The HBV genotype was identified by analyzing the HBV P gene, while the serotype was detected by deducing the nucleotide of the HBV S gene that overlapped with the P gene. Nine samples (75%) were genotype b, and three samples (25%) were genotype c. for serotype, six (50.0%), three (25.0%), and three (25.0%) samples wereayw, adw, andadr, respectively. genotype b is generally associated with less progressive liver disease than genotype c. genotypes b and c are prevalent in highly endemic areas in which the perinatal or vertical transmission play an important role in spreading the virus.
Total and Differential Cells of Leukocyte Mice (Mus musculus) On Evaluation In Vivo Anticancer Extracts Ethanol Marine Sponges Aaptos suberitoides
Authors: Nurhayati A P D , Pratiwi R , Soekardiman
Published: November 2019

The aim of this research is to know activity of ethanol extract from marine spons Aaptos suberitoides in total number and differentiation leukocyte cells which induce by carcinogenic agent Benzo(a)pyrene. METHODS. Mice (Mus musculus) were grouped in 6 group, group I (healthy mice), group II (induce by CMC Na), group III (treatment by cyvlophospamide), group IV (administered by spons extract 500 mg/kg BW), group V (administered by spons extract 1000 mg/kg BW) and group VI (administered by spons extract 1500 mg/kg BW). Benzo(a)pyrene induced for 10 days (5 times). The doses that given is 0,3 gram / 0,2 ml CMC Na. Mice were killed and the blood were taken. The sacrificed and blood sampling were taken. The total number and differentiation of leukocyte cells is made by smear method. RESULT AND DISCUSSION. The result of this examination is there were average total number of leukocyte cells in group I was 10,800 cells/μl, II and VI group were 3,700-5,500 cells/μl, the groups III, IV, V of 2,100-5,500 cells μl. The number of neutrophils and lymphocytes showed a significant difference (P <0.05) while the monocyte was no significant difference (P> 0.05).
Systemic lupus erythematosus: PKCA is an inhibition pathway for mTOR by the active ingredient of green tea
Authors: Mawarti H , Nugraha J , Purwanto D A , Soeroso J
Published: November 2019

This study aims to evaluate the interaction of green tea active compounds with proteins related to mTOR signals. The in silico study uses SEA protein target software, DB strings, and AUTODOCK PYRX 9.5. There are twenty target proteins that can interact with the active compounds of green tea. Of the twenty proteins, only six proteins are connected to the mTOR pathway. Of the six proteins, one that is a regulator of mTOR inhibitors is PKCA. Epigallocatechin has the strongest interaction with PKCA 4ARA (-8 kcal / mol). Cianidanol has the strongest interaction with PKCA 3IW4 (-9.3 kcal / mol). To analyze the involvement of the autophagy, a docking between ULK1 and AMPK was conducted, and there was an interaction between ULK1 and AMPK (bond energy of -1446.11 kcal). For the interaction between mTOR and ULK1, the bond energy is -624.5 kcal. For active green tea compounds, the bonding energy is more positive than the mTOR bond with ULK1. It was concluded that the green tea active ingredient as an inhibitor control against mTOR through PKCA and ULK1-AMPK (autophagy pathway).
The decrease in bacterialcount in adult chronic rhinosinusitis patients after nasal irrigation therapy with NaCl 0,9% Solution
Authors: Qamariah N , Muthmainah N , Tanjoto R B B
Published: November 2019

Rhinosinusitis is a disease in which there is inflammation of the nasal mucosa and paranasal sinuses. One of the treatments suggested by several ENT specialists for chronic rhinosinusitis is nasal irrigation. In nasal irrigation therapy, 0.9% NaCl solution has been shown to accelerate the time of mucociliary transport which has an indirect effect on bacterial growth, and to remove inflammatory mediators leading to a decrease in inflammation. This study aimed to provide evidence of a decrease in bacterial count in chronic rhinosinusitis patients after nasal irrigation therap. The research method was descriptive analytical with a cross sectional approach. The study sample originated from adult chronic rhinosinusitis who were treated at the ENT Polyclinic of RSUD Ulin Banjarmasin, TK III Hospital, dr. Soeharsono Banjarmasin, and Banjarmasin harmony clinic in the period December 2018. Sampling was done by purposive sampling technique. The results showed that of the 7 samples tested there was a decrease in the number of bacteria after nasal irrigation therapy, showed a decrease of 38.08% and statistical tests showed a significant decrease in the number of bacteria after nasal irrigation therapy 0.9% NaCl solution (p=0,0001).
Effect Of Coal Dust Exposure To Serum Interleukin 6 (IL6) And Vascular Endothelial Growth Factor (VEGF) Level As Preeclampsia Induction In Pregnant Rattus Novergicus
Authors: Wasilah S , Rachman F , Rosadi D , Puteri A O , Laily N , Yulidasari F , Anggraini L , Setiawan B , Noor M S
Published: November 2019

South Kalimantan is one of provinces in Indonesia that has a lot of coal minings. south kalimantan living environtment committee showed that there are 49 coal minings in 13 regions. the most coal minings are in Kotabaru, Tanah Laut and Balangan, each has 10 coal minings. Air pollution because of coal dust can effect endothelial function, such as hypertension in pregnant or preeclampsia. One of its mechanisms is coal dust can induce inflammation. One of inflammation’s indicator is high level of IL6. Inflammation disturb angiogenesis which is showed by low level of VEGF. High inflammation and low angiogenesis can induce endothelial dysfunction which is found in preeclampsia. This research’s goal was to analyze the effect of coal dust exposure to serum IL6 and VEGF level as preeclampsia induction in pregnant rattus novergicus. The design was experimental with post test only with control group design, consisted of 7 groups: control/K0 (group without coal dust exosure), group with coal dust exposure 6,25 mg/m3 for 1 hour/day (K1-1), group with coal dust exposure 12,5 mg/m3 for 1 hour/day (K1-2), group with coal dust exposure 25 mg/m3 for 1 hour/day (K1-3), group with coal dust exposure 6,25 mg/m3 for 2 hour/day (K2-1), group with coal dust exposure 12,5 mg/m3 for 2 hour/day (K2-2), and group with coal dust exposure 25 mg/m3 for 2 hour/day (K2-3).
Effect of the teaching and learning mathematics strategy based on metacognitive scaffolding on instructional efficiency
Authors: Turmudi T , Susanti E , Abdussakir A , Tajudin N M
Published: November 2019

Metacognitive scaffolding (MS) with self-questioning is helpful in promoting student problem solving skill and independent learning. MS deals with the process of learning which helps the students to think, control, and monitor their learning. The instructional condition will be more efficient if the performance of student achievement in problems solving needs less than mental effort invested or equivalent. Therefore, the purpose of this paper was to examine the effect of the scaffolding metacognitive strategy on instructional efficiency. The results of quasi-experiments indicated that the MS strategy fulfilled the direct effect to instructional efficiency. This data provide support for the claim that MS strategy is superior in comparison to the conventional teaching. Students in the experimental group showed an overall favorable view towards the implementation of MS strategy. They viewed that the MS strategy is an interesting, new, simple, and easy instructional format to use in mathematics learning.
Metacognition, self-efficacy, and mathematics learning achievement: A study based on gender differences
Authors: Kaluge A H
Published: November 2019

This research was conducted in 2018 in the 4th semester students of the mathematics education study program at the Catholic University of Widya Mandira Kupang. The aim was to determine the effect of metacognition and self-efficacy on mathematics learning achievement in terms of gender differences. The method used was multiple regression analysis. The results of this study indicated that both partially and simultaneously in male and female student groups all had a significant effect on mathematics learning achievement. The effect of metacognition and self-efficacy on mathematics learning achievement in female students was greater than that of male students. Of the two independent variables, self-efficacy had more influence on mathematics learning achievement than metacognition in both male students and female students. The results of this study indicated that male students' metacognition and self-efficacy need to be further improved. Self-efficacy needs to be given the most attention compared to metacognition in mathematics learning so that student mathematics learning achievements can be improved.
Implementation of Multivariate Analysis of Variance (MANOVA) in experiments factorial two factors (Study: Growth and development of soybean germination)
Authors: Saleh H , Hasanah S I , Subaidi A
Published: November 2019

Soybean is a type of leguminous plant that contains many substances that are important for health, high protein, vitamins and many spread in Indonesia. The economical part of soybean plants is the seeds, which are widely used as raw materials for tofu and tempeh. Variant Analysis with Multiple Variables (Manova) is a multivariate statistical method used to analyze data from more than one variable with an interval or ratio scale, while the independent variable consists of two or more groups, where all of these variables are analyzed simultaneously or together. The purpose of this study was to obtain a linear model based on the source of diversity derived from the design used, the source of diversity and compile it into the variance table, and the main influence of the factors and the interaction effects of the combination treatment. This study is a repeat observation experiment with a two-factor factorial basic design. This kind of design is called factorial design in RAL time. The first factor is the light intensity consisting of 3 levels, namely bright, dim, and dark. The second factor of the planting medium consists of 3 levels, namely husk ash, soil, and cotton. The responses observed were growth and development of soybean germination. Observations carried out for 5 days. The number of combinations of treatments was 7. The experiment was repeated 2 times so that the experimental units were 14 units. Based on the results of the source of diversity, a linear model is formed: Yijkl
= μ + αi
+ βj
+ αβij
+ δijkl
+ ω
1 + αω

i1 + βω

j1 + αβω

ij1 + εijkl
, where i = 1,2,3; j = 1,2,3; k = 1,2; and l = 1,2,3,4,5. Linear models are formed from total diversity. The total diversity that is the source of diversity comes from the main effect of treatment, the interaction effect of the treatment combination and the effect of the error. From the variance table, it can be concluded that the *****check****** sun rays intensity factor (A), planting media factor (B), time (C), factor A*B interaction, factor A*C interaction, factor B*C interaction, factor A*B*C interaction has a significant effect on the response observed which is indicated by the acquisition of Fhitung
> Ftabel
with a real level of 5%.
Effect of local taro starch (Colocasia esculenta) towards the nutritional value of yogurt with commercial probiotic starter
Authors: Krisnaningsih A T N , Rosyidi D , Radiati L E , Purwadi P
Published: November 2019

This research was aimed to determine the effect of adding local taro starch (Colocasia esculenta) toward the nutritional value of yogurt with commercial probiotic combination of lactic acid bacteria (BAL) S. thermophillus, L. bulgaricus, and L. acidhopilus. The materials were used in the manufacturing yogurt including raw cow milk, local taro starch, skim milk powder 4%, starter BAL 3%. The method used a laboratory experiment using a completely randomized design (CRD) with 6 treatments and 4 replications. The treatment used level of local taro starch: 0%; 0.5%; 1%; 1.5%; 2%; and 2.5%. The milk pasteurization temperature at 85°C for 30 minutes and the time of incubation at 24 hours. The variables observed were fat, protein and carbohydrate of yogurt. Data were analyzed by one-way ANOVA, and followed by Duncan's multiple range test (DMRT). The results showed the addition of local taro starch had a very significant effect (P <0.01) on the fat, protein and carbohydrate content of yogurt. Fat have decreased, while protein and carbohydrate of yogurt have increased with the addition of taro starch levels. It could be concluded that the addition of local taro starch to produce optimal nutritional value of yogurt with commercial probiotic starter.
The ontogenic and feed consumtion of Silver Rasbora
Authors: Anwar S , Harris H , Mutiara D , Arsyad N
Published: November 2019

Silver Rasbora fish (Rasbora argyrotaenia) has yellowish fins with shiny scales, wide mouth and protruding forwards with a maximum length of about 170 mm. Its habitat is found mostly in the rivers of Sumatra Island and lives in groups. Silver Rasbora is an omnivorous group, both from phytoplankton and zooplankton. The purpose of this study was to know the eating habits of Silver Rasbora fish in the Musi River through observing the diversity of feed in their stomach. The study was conducted in July - September 2017 in three locations (Mariana Village, Kenten Laut Village and Pulo Kerto Village). The method used is the method of description and method of determining the location carried out by purposive random sampling. The results showed that the percentage of feed type based on its class, the highest percentage was in the Chlorophyceae class with an average of 50.38% and Bacillariophyceae class with a percentage of 37.02%, while the Cyanophiceae class percentage was 11.33%.
The Separation Optimization of Berberine in Anting-Anting Plants (Acalypha Indica Linn) using High Performance Liquid Chromatography (HPLC)
Authors: Hayati E K , Zaky F R A , Husna H , Nihayatul A , Madjid A D R , Mutiah R
Published: November 2019

Anting-Anting plants (Acalypha Indica Linn) is a plant widely found in Indonesia. This plant has potential as an antimalarial, antidiabetic, and antitoxic drug. Ethyl acetate extract of this plant contained isoquinoline alkaloid, berberine which confirmed by LC-MS spectra on m/z 321,2561. Then, this study was conducted to determine the optimum conditions of separation and determination the berberine level existed on ethyl acetate extract of Anting-Anting using HPLC. The separation was optimized by varying flow rate of eluent (0.6 mL/min, 0.8 mL/min, 1.0 mL/min), mobile phase (methanol: TFA 0.1% (50:50 v/v) and acetonitrile: TFA 0.1% (60:40 v/v)). The separation was using HPLC with C18 (ODS) 4.6 × 250 mm, 5 μm column, isocratic method at various wavelengths (290 nm, 315 nm, and 345 nm). The optimum separation condition was obtained at flow rate 1 mL/min with mobile phase methanol: TFA 0.1% (50:50 v/v) and UV detector wavelength at 345 nm. The result showed that the berberine level of Anting-anting in ethyl acetate fraction was 11,82030 μg/mL.
Using of rice husk ash as material addition in mixing concrete by mixing 1 Cement : 2 Sand : 3G to increase the compressive strength
Authors: Yulianto F E , Mukti M H , Irmawan A
Published: November 2019

Concrete is a construction material with increased supply annually. Increased supply of concrete caused cement demand also increased while the price of cement also increased every year. Based on this case, some research was done by mixing additives that can improve concrete strength and reduce the amount of cement. One of the additives used is rice husk ash (RHA). However, the addition of RHA was not implemented in concrete with mixing by 1pc: 2ps: 3kr; while concrete mixing by 1pc:2ps:3kr are mostly used by local communities to construct multistory buildings in Pamekasan. Therefore, this study is done by adding the RHA of 0%, 3%, 5%, 7% and 9% of the weight of cement is added. Concrete compressive strength testing was performed on all types of samples on the concrete curing periods 7, 14, 21 and 28 days. Concrete compressive strength test results showed that the addition of 5% RHA is able to provide increased compressive strength of concrete is the most optimal compared to the percentage of the RHA. At the curing periods of 28 days of concrete with 5% RHA.
Sustainability of technological dimension in dairy agribusiness
Authors: Mastuti R , Alham F , Gustiana C , Hanisah H , Jamil M , Muslimah M , Rozalina R
Published: November 2019

This study aims to analyze sustainability index and status of technological dimension in dairy agribusiness in Batu City. Research methods applied were analysis Multidimensional Scaling (MDS) analysis, termed Rapuse, and Descriptive analysis. Study result was expressed in sustainability index and status. Moreover, to examine attributes sensitively affected sustainability index and status also the effect of error, analysis of Leverage and Monte Carlo was performed, followed with descriptive analysis. Data were obtained from key respondent and field observation. Four villages from three sub-districts in Batu City were purposively selected as research site, namely Village of Pesanggrahan, Tlekung, Oro-oro Ombo and Gunungsari. Sustainability analysis resulted in technological dimension of 60.40 or moderately sustainable condition and three leverage factors of AI breeding, adlibitum water application, and chopper use. Other factors in technological dimension should be taken care immediately since they sensitively have an effect on the increasing sustainability index and status with small error at confidence level of 95%. Factors included biogas installation, provision of dry concentrate, fresh milk handling, and cage cleanliness should be improved to increase sustainability index of technological dimension through role and support improvement of stakeholder consisted of milk cooperation, IPS, government institution related, and cattle farmers.
EMD of Linear Benzenoid Chain Using Chemical Graph
Authors: Raji M , Jayalalitha G
Published: November 2019

Let Gm
be a undirected graph. Having a Molecule, atoms indicate by vertices and bonds indicate by edges. The main aim of this paper explains Extended Medium Domination on Linear Benzenoid Chain like Benzene, Naphthalene, Anthracene and their generalisation will be proved.
Fuzzy cognitive maps and induced fuzzy cognitive maps approach to traffic flow
Authors: Sujatha R , Kuppuswami G
Published: November 2019

This paper presents a method to analyze the traffic flow pattern at a crowded junction in Chennai, one of the metropolitan cities in India, using waiting time in the signal in different time intervals with the help of Fuzzy Cognitive Map and Induced Fuzzy Cognitive Map.
Geometric Brownian Motion in Stock Prices
Authors: Suganthi K , Jayalalitha G
Published: November 2019

Financial instability estimates the changes of the cost of a monetary instrument. It is a proportion of properties of the Stock prices stability. Fractal investigations are used to assess the money related instability. Forecasting of stock prices acts as an important challenge based on the Random Walk theory. This paper deals with comparison of two years 2013 -2014 and 2017(Jun to Nov) of stock prices. Explain the instability by the method of Box-Counting technique to find the Fractal dimensions of the Geometric Brownian Motion based on the Random Walk defective value. This creates the possibility that Fractal measurement is related with the monetary unpredictability. Its an essential instrument for both money related investigators and Financial specialists.
Triangular fuzzy graceful labeling on star graph
Authors: Sujatha N , Dharuman C , Thirusangu K
Published: November 2019

In this paper, we present an algorithm to find triangular fuzzy star graph K1, n atmost 1241 edges. We show that it admits triangular fuzzy labeling. Also we prove that it satisfies triangular fuzzy graceful labeling.
Modelling Electric Circuit Problem with Fuzzy Differential Equations
Authors: Sindu Devi S. , Ganesan K.
Published: November 2019

In this paper we propose a new idea for the readers on the use of fuzzy in a real-life application in the triangular rule for solving the analytical solution of the second-order linear fuzzy differential equation (LFDE) under Hukuhara differentiability, especially increasing length of support. The case study is provided to show the advantages in the future.
A Comparison of Radial Basis Function and Multilayer Perceptron Network as tool for classification of Medical Data
Authors: Leoni Sharmila S. , Dharuman C. , Venkatesan P.
Published: November 2019

Artificial Neural Network has become a popular tool in developing systems that encircles human proficiency. The importance of exact detection is exceptionally important for proper treatment and preserve of disease. Clinical cytology has improved tremendously in disease diagnosis. In this paper, two Artificial Neural Network (ANN) methods, Multilayer Perceptron (MLP) and Radial Basis Function (RBF) network are compared. The RBF network predicts comparatively better accuracy in compared to MLP methods. Also it was detected that the RBF method requires a lesser amount of time for the development of the model, this is because there is no repetition to reach the favourable parameters in the model.
Crossover and Mutation Strategies applied in Job Shop Scheduling Problems
Authors: Vilma Roseline J. , Saravanan Dr. D.
Published: November 2019

This paper reviews modern genetic algorithm based approaches for solving job shop scheduling problems. This paper elaborates the types of crossover methods such as Partially Mapped crossover (PMX), Order One Crossover (OX), etc involved in Genetic Algorithm (GA) that are used for Job Shop Scheduling problems. Job Shop Scheduling represents one of the hardest combinatorial optimization problems where number of possible schedules drastically increases with the number of operations and machines. Normal crossover operators will often lead to inadmissible solution . Many specialized combining order or adjacency information from the two parents. The crossover method operators builds an offspring by choosing a subsequence of elements from one parent and preserving the order and position of as many elements as possible from the other parent. A subsequence of elements is selected by choosing two random cut points, which serve as boundaries for the swapping operations. There are few distinct mutation operators widely used for JSS problems such as swap, inversion, insertion (shift) and displacement mutation. Here some modern genetic algorithm-based approaches from the literature are also discussed as well.
General Analysis of Two Products Inventory Model – With Production by Two Units System and Sales
Authors: Parvathi S , Vijaya Bharathy M , Manikandan A
Published: November 2019

In this paper two units system engenders two different products for sale. The two products are engendered piecemeal in pairs. The sale time commences when k dyads are engendered or when the two units system fails whichever occurs first. Postulating the engenderment and sale time of products have general distribution and the failure and rehabilitate rates of the two units are constants, the double Laplace Stieltjes transform of the joint distribution function of the time to sale and sale time are obtained. Their prospect of engenderment time E (T), sales time E(R) is derived by varying the number of engenderment k. To illustrate the application of Numerical results are distribution by giving different values for λ1 λ2 μ.
A New Approach For Solving Integer Interval Transportation Problem With Mixed Constraints
Authors: Keerthana G. , Ramesh G.
Published: November 2019

In this paper, we suggest an interval Transportation problem where the source and destination parameters are chosen as interval numbers. The main objective of the problem is to minimize the total transportation cost and total delivery time. Algorithm is proposed (VAM and MODI) to determine initial allocation to the basic cells and the corresponding interval transportation cost. The optimal solution is obtained without converting the problem to its classical version. Numerical example is obtained which will be easy to understand the solution and procedure of the proposed method.
Fuzzy project planning and scheduling using critical path techique
Authors: Leelavathy T , Padmadevi S
Published: November 2019

In this article, we intend to determine the total duration of completion of the project for fuzzy networking problem with the activity duration represented as trapezoidal fuzzy number using Critical Path technique. A new fuzzy arithmetic operation, ranking method and a precise step by step plan is designed to obtain the total fuzzy duration, utilizing the available resources. Finally the proposed study is discussed with a numerical example.
The Hungarian Method for the Assignment Problem, With Generalized Interval Arithmetic and Its Applications
Authors: Priya D , Ramesh G
Published: November 2019

In this paper, we focus on the solution procedure for fully interval assignment problem (FIAP), Hungarian method is considered into account. In consideration method the given FIAP is decayed into Interval Assignment Problem, solving it with existing method and by using its optimal solutions, an optimal interval assignment solution to the given FIAP is obtained. Although the assignment problem can be solved as an ordinary transportation problem or as Linear programming problem, its unique structure can be exploited, resulting in special purpose algorithm, is called Hungarian method. A numerical example is provided to illustrate the solution procedure developed in this paper.
Machine learning and artificial intelligence to aid climate change research and preparedness
Authors: Huntingford Chris , Jeffers Elizabeth S , Bonsall Michael B , Christensen Hannah M , Lees Thomas , Yang Hui
Published: November 2019

Climate change challenges societal functioning, likely requiring considerable adaptation to cope with future altered weather patterns. Machine learning (ML) algorithms have advanced dramatically, triggering breakthroughs in other research sectors, and recently suggested as aiding climate analysis (Reichstein et al 2019 Nature
566 195–204, Schneider et al 2017 Geophys. Res. Lett.
44 12396–417). Although a considerable number of isolated Earth System features have been analysed with ML techniques, more generic application to understand better the full climate system has not occurred. For instance, ML may aid teleconnection identification, where complex feedbacks make characterisation difficult from direct equation analysis or visualisation of measurements and Earth System model (ESM) diagnostics. Artificial intelligence (AI) can then build on discovered climate connections to provide enhanced warnings of approaching weather features, including extreme events. While ESM development is of paramount importance, we suggest a parallel emphasis on utilising ML and AI to understand and capitalise far more on existing data and simulations.
In situ measurements and backward-trajectory analysis of high-concentration, fine-mode aerosols in the UTLS over the Tibetan Plateau
Authors: Zhang Jinqiang , Wu Xue , Liu Shang , Bai Zhixuan , Xia Xiangao , Chen Bing , Zong Xuemei , Bian Jianchun
Published: November 2019

An aerosol layer in the upper troposphere and lower stratosphere over the Asian summer monsoon (ASM) regions, namely, the Asian tropopause aerosol layer (ATAL), has been observed based on satellite remote sensing and in situ measurements; however, its source is still under debate. In August 2018, an experimental campaign over the Tibetan Plateau at Golmud (GLM, 36.48 °N, 94.93 °E) was performed, during which a balloon-borne Portable Optical Particle Counter was used to measure the aerosol particle profile. Backward-trajectory simulations were conducted with the Massive-Parallel Trajectory Calculations model to investigate the possible sources and transport pathways of the observed particles. The in situ measurements showed a robust ATAL around the tropopause, 16 km above sea level, with a maximum aerosol number density of 35 cm−3 and a maximum aerosol mass concentration of 0.15 μg m−3 for particles with diameters between 0.14 and 3 μm. The aerosol particles in the ATAL are mostly smaller than 0.25 μm in diameter, accounting for 98% of all aerosol particles detected. The backward-trajectory analysis revealed that the air parcels arrived at the altitude of the ATAL through two separate pathways: (1) the uplift below the 360 K isentropic surface, where air parcels were first elevated to the upper troposphere and then joined the ASM anticyclonic circulation; and (2) the quasi-horizontal transport along the anticyclonic circulation, located approximately between the 360 and 420 K isentropic surfaces. The complex transport pathways may aggravate the challenge of analyzing the composition of the ATAL, and further observation campaigns are required to extend our knowledge.
Global ecosystem service values in climate class transitions
Authors: Watson Lisa , Straatsma Menno W , Wanders Niko , Verstegen Judith A , de Jong Steven M , Karssenberg Derek
Published: November 2019

Ecosystem service assessments facilitate the valuation of nature and support decision-making. Ecosystem services are connected to climate; however, ecosystem service values affected by climate change remain unclear. We mapped global ecosystem service values totaling ∼1.3 trillion international dollars for 2005. Transitions in Köppen–Geiger climate classes projected with General Circulation Models under the four IPCC Representative Concentration Pathways (RCP) were modeled providing 20 climate scenarios. The mapped global ecosystem service values were combined with the 20 climate scenarios in order to identify where and how much of the global ecosystem service value is within a climate class transition. By 2050, 252–375 billion international dollars of ecosystem service value (20%–30% of total value) are in a Köppen–Geiger climate transition for both RCP 2.6 and 8.5 scenarios. In RCP 2.6, the 2015 Paris Agreement carbon emission scenario target, Köppen–Geiger climate transitions stabilize after 2050. However, in the RCP 8.5 scenario, ecosystem service values amounting to 467–632 billion international dollars (37%–50% of total value) are in a Köppen–Geiger climate transition by 2085. These results provide an inclusive global overview of climate change impact on evaluated ecosystem services that affect populations and economies.
Spatio-temporal organization of geosystems of the central part of Barguzinskii range
Authors: Bilichenko I N , Sedykh S A
Published: November 2019

The paper presents the results of the ecological study, with the analysis of landscapes and mapping of the area of the testing ground (80 km2). The testing ground is located in the Eastern Transbaikalia, covering the part of the Urbican basin and its mountainous frame. For the analysis of the structure of geosystems and the estimation of disturbance, the basic geosystem approach is applied to modern geoinformation-cartographic and remote methods. Based on V. B. Sochava theory of geosystems it is assumed for use in processing and ordering a large volume of information. In the paper we analyzed the regional background and main factors of the landscape differentiation of the study areas. It is established that the main factors influencing the landscape diversity are the aspect and steepness of the slopes, the composition and structure of rocks, the absolute height, the amount of atmospheric precipitation, and anthropogenic impacts. It is determined that the influence of the lithomorphic factor is widespread throughout the study areas, the hydromorphic factor is also important, the cryomorphic factor occurs additionally in the alpine and goletz zones. There are structural-dynamic characteristics of landscapes of a topological level. Structural features of topological geosystems are revealed, and large-scale maps of key areas are compiled. Map of the landscape-typological structure was created on the basis of the structural-dynamic and facies analysis of landscapes.