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Developing Tourism Attractions Based on Ecotourism in Aek Nauli Indonesia

IOP Conference Series: Earth and Environmental Science 2020年第1期452卷

作者： N Ginting E Triska Architecture Department Faculty of Engineering Universitas Sumatera Utara Medan 20155 Indonesia Post Graduate Program of Architecture Faculty of Engineering Universitas Sumatera Utara Medan 20155 Indonesia Toba Lake and Sustainable Tourism Working Group Universitas Sumatera Utara Medan 20155 Indonesia

Tourism development is needed because tourism can increase an income in a destination. Ecotourism is a new type of tourism that responsible towards nature, community, and the environment. Ecotourism draws more tourist's interest because besides giving natural tourism experience, they can learn to conserve the nature and involve with the community. Aek Nauli Natural Forest has been opened for public since 2011. However, the tourism is not developing despite of its attraction's potential. This research is focusing on natural attraction as one of the elements of tourism attraction. The aim of this research is to find tourist attractions that have the potential to be developed based on ecotourism in Aek Nauli. This research uses a qualitative method by conducting observation and in-depth interview with key respondents. The result of this research is a concept of potential attraction development based on ecotourism in Aek Nauli.

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The uniqueness of the environmental aspects of sustainable tourism on Samosir Island

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IOP Conference Series: Earth and Environmental Science 2020年第1期452卷

作者： Nurlisa Ginting Michaela Architecture Department Faculty of Engineering Universitas Sumatera Utara Medan 20155 Indonesia Post Graduate Program of Architecture Faculty of Engineering Universitas Sumatera Utara Medan 20155 Indonesia Toba Lake and Sustainable Tourism Working Group Universitas Sumatera Utara Medan 20155 Indonesia

The dominance of economic values in the tourism development has caused the decline of other important values, thus make the application of sustainability concept is crucial. As part of Indonesia's priority destinations, this concept is also needed to be applied in Samosir Island. In other hand as a tourism destination, a place must have distinctiveness to differentiate it from other places because tourism is fundamentally a recreational product based on place phenomenon. The research is a study of the value of uniqueness on the environmental elements of sustainable tourism in Samosir Island, North Sumatra, Indonesia. The research used mixed methods where questionnaires were distributed to 105 respondents, field observation was conducted, and in-depth interviews were held with six key informants. The result shows that the existence of the traditional building has a great influence towards the physical integrity of the tourist while the diverse cultural activities in the areas required appropriate strategies in enhancing and supporting the environmental elements of sustainable tourism.

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Impact of Urban Expansion on Superficial Water Quality in Periurban Areas

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Journal of Environmental Protection 2019年第12期10卷 1591-1601页

作者： Adriana Schueler Vinicius Perrut dos Santos Decio Tubbs Department of Architecture and Urbanism and Post Graduate Program in Territorial Development and Public Policies Universidade Federal Rural do Rio de Janeiro Seropédica Brasil Engineering and Architecture Project Coordination from Universidade Federal Rural do Rio de Janeiro Seropédica Brasil Department of Geoscience Universidade Federal Rural do Rio de Janeiro Seropédica Brasil.

Economic growth promoted by large investment projects in the city of Seropédica and surrounding areas is not accompanied by a territorial planning that supports future growth scenarios. The challenge of the municipality is to prepare to have its territory fully transformed. This study aimed to establish quantitative data on the interferences that the growth model practiced has caused in its main watercourse called Val?o dos Bois. For this, its morphometric characteristics and physicochemical parameters of water quality were measured, and computational simulations of the self-purification processes were performed at various points, as well as the infiltration and precipitation processes, surface flow and leaching in four occupation scenarios of the urbanized areas of the basin, for rains with five different return periods.

关键词： Water Recourses Urban Development Computer Simulation Sanitary Sewage

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Visual assessment deterioration analysis of runways at Sultan Aji Muhammad Sulaiman Sepinggan Airport Balikpapan

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AIP Conference Proceedings 2019年第1期2114卷

作者： Yanti Sri Sunarjono Agus Riyanto Nurul Hidayati Alfia Magfirona 1Civil Engineering Post Graduate Program Universitas Muhammadiyah Surakarta Surakarta Central Java Indonesia

Sultan Aji Muhammad Sulaiman Sepinggan (SAMS) Airport has an important role as the gateway of economic activity in Balikpapan, East Kalimantan. Elements of the airport consist of runways, taxiway, apron and the terminal building of departure and arrival. The runway has an important role as a key element in airport infrastructure, this is related to aircraft and passenger safety in air traffic at SAMS Airport, which is currently one of the best airports in Indonesia that meets the International Standard qualification. The purpose of this study is to perform visual assessment of runway deterioration at SAMS Airport using PCI (Pavement Condition Index) method, to know the factors affecting runway deterioration and the effective distress treatment to overcome deterioration at a runway. The visual assessment data are collected from PT. Angkasa Pura I (Persero) Sepinggan, by measuring the types and area of deterioration occurring on the runway during 1-month period (in September 2018), then PCI is analyzed by using ASTM D 5340 – 98. The results show that the PCI value is 80.4 which means the rating is excellent. The most common typical distress occurred at Threshold Runway 25 section 1 with the type of distress is block cracking which mainly caused by asphalt concrete shrinkage and daily temperature condition resulting in stress or strain series, another type is depression initially caused by the settlement from the soil foundation or construction process. Since PCI shows excellent state, the distress repair treatment to be performed is surface repair or routine maintenance with partial mill and overlay method.

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Developing self-adaptive microservice systems: Challenges and directions

arXiv

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arXiv 2019年

作者： Mendonça, Nabor C. Jamshidi, Pooyan Garlan, David Pahl, Claus Post Graduate Program in Applied Informatics University of Fortaleza FortalezaCE Brazil Computer Science and Engineering Department University of South Carolina ColumbiaSC United States School of Computer Science Carnegie Mellon University PittsburghPA United States Faculty of Computer Science Free University of Bozen-Bolzano Bozen-Bolzano Italy

A self-adaptive system can dynamically monitor and adapt its behavior to preserve or enhance its quality attributes under uncertain operating conditions. This article identifies key challenges for the development of microservice applications as self-adaptive systems, using a cloud-based intelligent video surveillance application as a motivating example. It also suggests potential new directions for addressing most of the identified challenges by leveraging existing microservice practices and technologies. Copyright © 2019, The Authors. All rights reserved.

关键词： Adaptive systems

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Ionic oxidation in cathodic cage of titanium CP grade II

Ionic oxidation in cathodic cage of titanium CP grade II

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作者： Vitoriano, Jussier Oliveira Braz, Danilo Cavalcante Barbosa, Geovani Ferreira Araújo, Francisco Odolberto Alves, Clodomiro Post-Graduate Program in Materials Science and Engineering Universidade Federal Rural do Semi-Árido Brazil

Titanium oxides such as rutile and anatase, are materials that stand out for exhibiting properties that act in biomedical and photocatalytic applications, among others. It is extreme importance to idealize new techniques that produce such compounds, being indispensable the improvement of characterizations for these materials. For this purpose, titanium comercially pure (CP) grade II cylindrical samples were oxidized ionically using titanium cage electric shields, oxidized at 350 ° C in 3 and 8 hours. Through Grazing Incidence X-ray Diffraction (GIXRD) analysis, was observed on the surface of the treated samples the formation of a TiO2 film with the anatase, rutile and brookite phases, the latter phase cited being difficult to produce in conventional thermochemical treatments. All samples treated showed a significant increase in wettability using distilled water. The higer value was for the sample with a 8 hours treatment time, in which this condition presented phases with greater intensity in the analysis of GIXRD. © 2017 Universidade Federal de Sao Carlos. All rights reserved.

关键词： Titanium dioxide

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Performance improvement of palm oil foaming agent concentrates as fire extinguishment materials in peatlands

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IOP Conference Series: Earth and Environmental Science 2020年第1期460卷 012026-012026页

作者： M Rivai E Hambali A Suryani G Pramuhadi P Subekti Surfactant and Bioenergy Research Center IPB University Indonesia Department of Agroindustrial Technology IPB University Indonesia Department of Mechanical and Biosystem Engineering IPB University Indonesia Post Graduate Student Study Program of Agroindustrial Technology IPB University Indonesia Department of Mechanical Engineering Pasir Pengaraian University Indonesia

Foaming agent concentrate made from palm oil produced as a fire extinguishing material in peatlands at a laboratory-scale test were able to extinguish a fire within 3.16 to 4.49 hours. Fire extinguishing ability of this foaming agent concentrate resulted in a lower solution use and shorter extinguishing time than water. However, when compared to commercial products, fire extinguishing time was still longer although the amount of solution needed to extinguish the fire was lower. Therefore, it was necessary to improve the formula to produce a foaming agent concentrate that was able to extinguish the fire in a shorter time with a lower amount of fire extinguishing solution. This study aims to improve the performance of palm oil foaming agent concentrate on extinguishing the fire in peatlands. Efforts to improve the performance were made by reformulation and the addition of chemical fire retardants. Results showed that the addition of fire retardant reduced foaming ability, increased surface tension, lowered viscosity, lowered contact angle, and reduced fire extinguishing time to about 13.08-69.21%.

关键词： Improved formulation palm oil foaming agent concentrate fire extinguisher reduction of extinguishing time

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Real-time optimization using gradient adaptive selection and classification from infrared sensors measurement for esterification oleic acid with glycerol

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International Journal of Intelligent Computing and Cybernetics 2017年第2期10卷 130-144页

作者： Iwan Aang Soenandi Taufik Djatna Ani Suryani Irzaman Post Graduate Program of Agro-industrial Technology Bogor Agricultural UniversityBogorIndonesia and Faculty of Engineering and Computer ScienceKrida Wacana Christian UniversityJakartaIndonesia Post Graduate Program of Agro-industrial Technology Bogor Agricultural UniversityBogorIndonesia Department of Physics Faculty of Mathematics and Natural SciencesBogor Agricultural UniversityBogorIndonesia

Purpose-The production of glycerol derivatives by the esterification process is subject to many constraints related to the yield of the production target and the lack of process *** accurate monitoring and controlling of the process can improve production yield and *** purpose of this paper is to propose a real-time optimization(RTO)using gradient adaptive selection and classification from infrared sensor measurement to cover various disturbances and uncertainties in the ***/methodology/approach-The integration of the esterification process optimization using self-optimization(SO)was developed with classification process was combined with necessary condition optimum(NCO)as gradient adaptive selection,supported with laboratory scaled medium wavelength infrared(mid-IR)sensors,and measured the proposed optimization system indicator in the batch *** Process Modeling and Notation(BPMN 2.0)was built to describe the tasks of SO workflow in collaboration with NCO as an abstraction for the conceptual ***,Stateflow modeling was deployed to simulate the three states of gradient-based adaptive control combined with support vector machine(SVM)classification and Arduino microcontroller for ***-This new method shows that the real-time optimization responsiveness of control increased product yield up to 13 percent,lower error measurement with percentage error 1.11 percent,reduced the process duration up to 22 minutes,with an effective range of stirrer rotation set between 300 and 400 rpm and final temperature between 200 and 210℃ which was more efficient,as it consumed less *** limitations/implications-In this research the authors just have an experiment for the esterification process using glycerol,but as a development concept of RTO,it would be possible to apply for another chemical reaction or *** implications-This research introduces new development of an RTO approach to optimal con

关键词： Gradient technique Infrared sensor Real-time optimization Simulation and modelling Support vector machine

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Identifying irregularity electricity usage of customer behaviors using logistic regression and linear discriminant analysis 3

Identifying irregularity electricity usage of customer behav...

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3rd International Conference on Science in Information Technology, ICSITech 2017

作者： Lawi, Armin Wungo, Supriyadi La Manjang, Salama Department of Computer Science Post-graduate Program of Electrical Engineering Dept. Electrical Engineering Universitas Hasanuddin Makassar Indonesia

ISBN: (纸本)9781509058662

This study aims to implement a machine learning technique in identifying the irregularities of customer behavior on the use of prepaid electricity pulses. The methods used are Linear Discriminant Analysis and Logistic Regression. The performance of the classification system will be evaluated using the 10-fold cross-validation technique. Validation results are measured using accuracy, precision and recall values. In this research shows that the use of machine learning technique has a good performance in classification of electrical consumption behavior. Experimental results with the different amount of data testing indicate that Logistic Regression method has high accuracy, precision, and recall value when compared with Linear Discriminant Analysis that is 100%. This is due to Logistic Regression method can predict irregularities accurately because the addition of the amount of data does not affect the performance of the method. © 2017 IEEE.

关键词： Regression analysis

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Comparative study of asphalt concrete characteristic between ideal gradation and laboratory tested gradation with crumb rubber

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IOP Conference Series: Materials Science and engineering 2019年第1期650卷

作者： Asep Sundara Risna Rismiana Sari Tanya Audia Balqis Civil Engineering Department Politeknik Negeri Bandung Bandung Indonesia Post-Graduate Student of Infrastructure Engineering Study Program Applied Master Program Politeknik Negeri Bandung Bandung Indonesia

Modifying asphalt concrete with using Crumb Rubber (CR) can provide environmental benefits. The method used in this study is an experimental laboratory with Mashall machine. The tests used two types of gradation, namely the gradations of Ideal and Laboratory Test. CR used in a mixture with a dry process method to replacement 0%, 5%, 15% and 20% of the weight aggregate at fraction No. 30 (0.6 mm). The results showed that the Ideal gradation mixture has a better characteristic than the mixture of laboratory tested gradations. Ideal gradations can increased stability into 10% from Laboratory Test gradations for mixture without CR. Addition of CR contect in AC mixture did not significantly effect for the characteristics. To ensure the effect of CR in mixture, further test must be taken.

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