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UNEJ e-Proceeding
Published by Universitas Jember
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 107 Documents
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Search results for , issue "2016: Proceeding The 1st International Basic Science Conference" : 107 Documents clear
MODELLING DYNAMICS OF ZNO PARTICLES IN THE SPRAY PYROLISIS REACTOR TUBE Diky Anggoro; Melania Muntini; Iim Fatimah; Sudarsono Sudarsono
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Development of ZnO particles research is current quite rapidly, especially in the fields of medicine and energy. ZnO Particle morphology during the process of synthesis using spray pyrolysis systems highly influential in its application the future. Our research group has developed a system of tubes spray pyrolysis reactor with the electrical heater. Physical phenomena that occur in the processing of particles, simulated in the form of a mathematical equation, useful for the experimental spray pyrolysis as there some parameters such as carrier gas flow (Q), the temperature of reactor walls (Tw), the number concentration of droplets that enter reactor (No), and the size of initial droplet diameter (dPo). The modelling parameters provide system optimization and prediction of particle morphology formed from experiments.
Simulatian of self diffusion of iron (Fe) and Chromium (Cr) in Liquid lead by Molecular Dynamic Ernik Dwi S; Artoto Arkundato; Supriyadi Supriyadi; Heru Baskoro; Elva Nurul F
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Number of rectors have become more and more from year to year, and there are currently around 800 reactors operated around the world. Fast breeder reactor then is one of the new types of reactors design, that are still being developed. Then the corrosion resistance of steels used in reactor, is one focus of today researches, due to the corrosive nature of material immersed in high temperature molter liquid metal, as Pb coolant. A strong interaction between the atoms of steels with molten metal at high temperatures causes of occurrence of diffusion processes between the steel and the cooling material. Self diffusion coefficient is a physical parameter that may be used to identify the corrosivity of steel. The choice of using the selected material than is crucial in nuclear reactors design. The corrosion simulations were run using LAMMPS molecular dynamics software. This simulation showed that adding Cr in the FeCr was placed in the center of liquid lead does not have effect for self diffusion of iron.
A Sensor-Based of Detection Tools To Mitigate People Live in Areas Prone to Landslide Satryo Budi Utomo; Januar Fery Irawan
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Landslide that occurred in the district of Panti, Jember is still leaving concerns the people in the region are affected by the loss of lives and huge material losses. To anticipate the same loss in the future, it is necessary to increase the capacity of community through the establishment of early warning systems in areas prone to landslides locations. The long term goal of this research is to provide emergency response preparedness landslides, so that in the event of micro ground motion at the site of the landslide-prone, the public can readily evacuate to a safe place. By increasing the capacity of the technical aspects, the expected loss and damage caused by landslides can be minimized. The specific objectives are to produce a tool to improve early warning systems through disaster preparedness landslides. The research activity is to make a sensor-based of detection tools of landslides. The working principle of the tool is to know the movement of soil micro-automatically. This tool uses an Arduino to control the working of the entire system, and laser Photodioda sensor used for detecting a shift in the soil due to landslides. From the test results, the voltage available at the time the distance between the laser sensor and the sensor is 50 cm high from the seventh sensor voltage of 0.4 volts whereas when the distance between the laser and the sensor 600 cm is the seventh largest of the voltage sensor at 0:13 volts. This tool can work well in the detection sensor to ground movement.
Determination of Lead in Cosmetic Sampels Using Coated Wire Lead (II) Ion Selective Electrode Based On Phyropillite Qonitah Fardiyah; Barlah Rumhayati; Ika Rosemiyani
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract

A coated wire ion selective electrode (CW-ISE) based on pyrophyllite for detection lead (II) in cosmetic samples was developed. CW-ISE has easy measurement for field analysis, good selectivity and sensitivity. The CW-ISE’s membrane consist of mixture an inorganic material of pyrophyllite as  ionophore, polyvinylchloride (PVC) as the matrix polymer, activated carbon and dioktilftalat (DOP) as a plasticizer dissolved in tetrahydrofuran (THF) solvent (1:3 w/v).  It showed a good Nernstian slope of 29.33 mV/decade concentration, a lead linear range concentration between 10-1- 10-5 M, and detection limit of 8.054 x10-6 M  (equal with 1.669 ppm of lead). And could be used optimally at pH 5 and showed a good selectivity for interfering ions (sodium ion, mercury ion and chromium ion) with selectivity order of lead >mercury>chromium>sodium.  The CW-ISE Lead (II) based on pyrophyllite could be applied for determination lead in cosmetic samples, with precision of 95.42% and accuracy of 96.49%. Based on the statistical t test with 5% confidence limit, the potentiometric method and Atomic Absorption Spectrophotometry method had no significant differences.
Application of Fuzzy TOPSIS Method in Scholarship Interview Abduh Riski; Ahmad Kamsyakawuni
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Decision-making problem is the process of determines the best options of all feasible alternative. In some problems, decision-making process involves the attributes of linguistic as in scholarship interview, which is one of the multi-objective decision-making (MODM) problem. The aim of this paper is to apply Fuzzy TOPSIS method in scholarship interview. Scholarship Interview that defined in this paper was implemented to  candidates by  questions for each candidate and assessed by  interviewers. Technique for the Order of Preference by Similarity to Ideal Solution (TOPSIS) method is a multi-attribute decision-making (MADM) method. The basic principle of the TOPSIS method is to choose the alternative that has similarity with the ideal solution. So that the TOPSIS method can be applied in a scholarship interview, in the first step is used fuzzy method to reduce the -dimensional objective space to be one-dimensional objective space. Then applied the TOPSIS steps by fuzzy approaching to find the best alternative. In this paper will be used a scholarship interview case to illustrate more obviously steps. With this approach, the determination of the scholarship recipients can be more powerful and assured.
On The Total r-dynamic Coloring of Edge Comb Product graph G D H Dwi Agustin Retno Wardani; Dafik Dafik; Antonius C. Prihandoko; Arika I. Kristiana
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Given that two natural numbers r, k. By a proper total k-coloring of a graph G, we mean a map c : V (G) ∪ E(G) → {1, 2, . . . , k}, such that any two adjacent vertices and incident edges receive different colors. A total r-dynamic coloring is a proper k-coloring c of G, such that ∀v ∈ V (G), |c(N(v))| ≥ min{r, d(v) + |N(v)|} and ∀e ∈ E(G), |c(N(e))| ≥ min{r, d(v) + d(u)}. The total r-dynamic chromatic number, written as χ ”r(G), is the minimum k such that G has an r-dynamic total k-coloring. A total r-dynamic coloring is a natural extension of r-dynamic coloring in which we consider more condition of the concept, namely not only assign a color on the vertices as well as on the edges. Consequently, this study will be harder. In this paper, we will initiate to analyze a total r-dynamic of an edge comb product of two graphs, denoted by H D K, where H is path graph and K is any special graph. The result shows that the total r-dynamic chromatic number of Pn D K.
Preliminary Study Gold Mineralization Hosted By Metamorphic Rocks In The Southeastern Arm Of Sulawesi, Indonesia Hasria Hasria; Arifudin Idrus; I Wayan Warmada
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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This paper is intended to describe an preliminary study of geological setting and gold mineralization hosted by metamorphic rocks in the southeastern arm of Sulawesi. The stratigraphy consists of three constituent rocks are continental terrain composed of metamorphic rocks, ophiolite complex are dominated by mafic and ultramafic rocks and Sulawesi Molasse composed of clastic sediments and carbonate. The origin of gold mineralization at Mendoke and Rumbia mountains only preliminary studies. A field study indicates that the Langkowala placer/paleoplacer gold is possibly related to gold-bearing quartz veins hosted by metamorphic rocks particularly mica schist, phyllite and metasediments in the area. These quartz veins are currently recognized in metamorphic rocks at Wumbubangka Mountains, a northern flank of Rumbia Mountain Range. At least, there are three generations of the quartz veins. The first generation of quartz vein is parallel to foliation of mica schist, phyllites and metasediments in up to 10 m wide zones. The second quartz vein generation crosscut the first quartz vein and the foliation of the wallrock. The third is of laminated deformed quartz-calcite veins at the late stage. The first veins are mostly massive to crystalline, occasionally brecciated and sigmoidal, whereas the second veins are narrower than the first and relatively brecciated. Gold grades in the second and third veins are relatively higher than that in first veins. The similar quartz veins types are also probably present in Mendoke mountain range, in the northern side of Langkowala area. The wallrock are generally weakly altered. Alteration types include argillic, silification, carbonate and carbonization alteration. This primary gold deposit is called as orogenic gold type and product of hydrothermal activity. The orogenic gold deposit is one of the new target of gold exploration are being developed in Indonesia.
Strategy to Increase Contract Farming Satisfaction on Red Chili Farmer with The Hortikultura Lestari Cooperation (Evidence : Dukuh Dempok Village Wuluhan District) Hesti Herminingsih
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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One of the many commodities that are planted by farmers in Dukuh Dempok, Wuluhan Jember is red chili. Most of the red chili farmers in Dukuh Dempok have contract farming with Hortikultura Lestari Cooperation. Hortikultura Lestari Cooperatio. The Hortikultura Lestari cooperation is the one cooperation in Jember that have contract with PT. Heinz ABC as a grower for the company. Research’s location is purposively defined based on red chili farmer in Dukuh Dempok has a number of farmers who partnered the most. Data collection was done through discussions, interviews, observation and study of the literature. The purpose of the research was to examine the efforts that can be done to improve the satisfaction of farmer. FFA (Force Field Analysis) is used to formulate the effort that can be done to improve the satisfaction of farmers. The results showed score for IFAS ( Internal Strategic Factor Analysis Summary ) is 2.70 . The resulting scores for EFAS (external Strategic Factor Analysis Summary ) is 2.60 . From the results of IFAS and EFAS, it can be determined the position of the organization in “Growth” category . The recommended strategy is concentration through horizontal integrated. This strategy is part of the growth strategy and can be done by establish cooperation with other farmers to strengthen small holder farmer group.
ANALYSIS OF THE INFLUENCE OF PUBLIC PARTICIPATION IN THE MANAGEMENT OF RESOURCES SUSTAINABLE WATER MALANG DISTRICT Ahmad Kamal Sudrajat; Dewi Nur Arasy; Daning Nindya Fitri Arianti; Sueb Sueb
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Water is a major part of the Earth. It is also an important part of life on Earth. It is a natural resource that has limited of both quality and quantity to meet human needs. Based on a survey conducted in the village office, data showed that there are some areas experiencing drought, this area includes four sectors. The purpose of the research is to show influence of public participation in the management of resources sustainable Malang district. The research was conducted in November, 2015 in Malang district. The population is the whole Karangkates village population in Malang district. The sample was 30 people using cluster sampling. The Research instrument is closed questionnaire. Data were analyzed quantitatively in the cross tabulation done by statistical testing with linear regression statistical tests. In conclusion, there is a significant influence of public participation on the management of sustainable water resources in Malang district according to the regression model y= 6,739 + 1,299x with 51.9% reliability models.
THE TOXICITY OF SEEDS EXTRACT OF ANNONA SQUAMOSA L., LEAVES EXTRACT OF TERMINALIA CATAPPA L. AND LEAVES EXTRACT OF ACACIA NILOTICA L. ON THE MORTALITY OF AEDES AEGYPTI L. LARVAE Dwi Wahyuni; Sandy Pradipta; Muhammad Ramadhan
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Aedes aegypti L. is a species of mosquito that carries the dengue virus causes dengue fever. The way to solve the disease is still focused on synthesis larvacides which have a negative impact on the environment, it needs to be replaced with natural larvicides that are environmentally friendly. Annona squamosa L. seeds extract contains annonain and squomacin. Terminalia catappa L. leaf extract contains quinone, saponin, flavonoid and tannin. Acacia nilotica L. leaf extract contains terpenoid, saponin, flavonoid and tannin. This research aims to determine The toxicity of seeds extract of A. Squamosa, leaves extract of T. Catappa, and Leaves extract of A. nilotica on the mortality of Ae. aegypti. The method used in this research was complete randomized design using four replications. Concentration used 5, 10, 50, 100, 150, 200 and 250 ppm for the seeds extract of A. Squamosa, 50, 100, 150, 200, 250, 300 and 350 ppm for the leaf extract of T. catappa, and 80, 120, 180, 240, 300, 350 and 400 ppm for the leaf extract of A. nilotica. The data were analyzed using probit analysis to determine the LC50. The result showed LC50 is 109.43 ppm for A. Squamosa seeds extract, LC50 is 171.65 ppm for T. catappa and LC50 is 203.63 ppm for A. nilotica. This result showed the biggest toxicity is seeds extract of A. Squamosa.

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