Journal articles on the topic 'Sistemi compositi'
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Olivito, Renato S., and Rosamaria Codispoti. "Natural Fiber Composites for Structural Strengthening of Constructions." Key Engineering Materials 916 (April 7, 2022): 66–73. http://dx.doi.org/10.4028/p-qg327p.
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Negli ultimi anni vengono studiate le fibre naturali di origine vegetale come lino, juta, canapa, basalto oltre a quelle derivate dal bambù o dall'ananas, per le loro molteplici proprietà. Tra i principali vantaggi che hanno, ricordiamo: la grande disponibilità in natura; sono rinnovabili, hanno una bassa densità e un costo contenuto, nonché proprietà meccaniche che li rendono interessanti per la realizzazione di materiali compositi fibrorinforzati. Sono utilizzati da tempo in vari settori dell'ingegneria: dall'automotive e aerospaziale all'ingegneria civile per la realizzazione di pannelli, pareti ecc. Attualmente l'attenzione è stata focalizzata sulla possibilità di utilizzarli come materiali di rinforzo su strutture in muratura. Il continuo e crescente interesse per la conservazione dei beni storici richiede sistemi di rinforzo di facile utilizzo e affidabili con relative metodologie di calcolo che permettano di valutare la capacità delle strutture murarie esistenti e rinforzate. Tuttavia, i modelli analitici applicabili alle strutture in muratura armata non sono stati sviluppati allo stesso livello di quelli per altri materiali da costruzione moderni. In particolare, esiste un divario tra i risultati sperimentali di elementi murari armati con sistemi innovativi ei risultati ottenuti da modelli analitici. Tutto ciò ha ostacolato un'analisi completa dell'approccio sperimentale che può fornire un prezioso contributo a metodi di progettazione eccessivamente conservativi per soluzioni di rinforzo innovative. Nel presente lavoro, al fine di validarne l'efficacia vengono mostrati i risultati di un'ampia campagna sperimentale per la caratterizzazione meccanica di compositi con fibre naturali e la loro applicazione ad elementi strutturali in muratura, in diverse condizioni di carico applicato e geometrie murarie. Parole chiave: Fibre naturali – Compositi – FRCM - Massoneria
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Mitoseriu, Liliana. "Fenómenos magnetoeléctricos en sistemas monobásicos y composites." Boletín de la Sociedad Española de Cerámica y Vidrio 44, no. 3 (June 30, 2005): 177–84. http://dx.doi.org/10.3989/cyv.2005.v44.i3.386.
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Paolone, Gaetano, and Lorenzo Breschi. "Restauri diretti in composito: le potenzialità di un sistema composito universale." Dental Cadmos 85, no. 05 (May 2017): 306. http://dx.doi.org/10.19256/d.cadmos.05.2017.09.
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Ranz, D., J. González, J. A. Márquez, and A. Miravete. "Desarrollo de un nuevo sistema de material compuesto: resistente al fuego y altamente estructural." Materiales de Construcción 60, no. 298 (May 24, 2010): 109–21. http://dx.doi.org/10.3989/mc.2010.47308.
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Nurhapsari, Arlina. "PERBANDINGAN KEBOCORAN TEPI ANTARA RESTORASI RESIN KOMPOSIT TIPE BULK-FILL DAN TIPE PACKABLE DENGAN PENGGUNAAN SISTEM ADHESIF TOTAL ETCH DAN SELF ETCH." ODONTO : Dental Journal 3, no. 1 (July 1, 2016): 8. http://dx.doi.org/10.30659/odj.3.1.8-13.
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Background: Composite resin has been widely used because of it's great aesthetic and physico-chemical properties. Type of posterior composite resins mostly used nowadays are packable and bulk-fill composite resins. Shrinkage in composite resin resulting microleakage that could lead to pulp sensitivity. Dentin bonding adhesive system can help to minimalize shrinkage. There are two type of adhesive system, the total etch and self etch group. The purpose of this study was to compare the microleakage between bulk-fill and packable composit resin with two different types of dentin bonding adhesive system. Method: twenty premolar teeth used as sample. The teeth were divided into four groups of 5 teeth each and Class I cavity preparations were prepared. The groups are : G1 (PC + TE), G2 (PC + SE), G3 (BC + TE), G4 (BC + SE). The specimens were thermocycled, stained with methylene blue dye, and sectioned to evaluate the dye penetration.Result: Kruskal Wallis test showed no difference among 4 groups. Meanwhile, Mann Whitney test showed significance difference between G2 - G3, and G3 - G4.Conclus/on: The study demonstrated that total etch has better sealing ability than self etch and there was no significant microleakage difference between bulkfill composite and packable composite.
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Bimantio, Mohammad Prasanto, Herawati Oktavianty, and Reza Widyasaputra. "The design of A Portable Fixed-Bed Composite Adsorber Column as a Biodiesel Purification Media with Packing Bed System." TEKNIK 41, no. 3 (November 25, 2020): 253–60. http://dx.doi.org/10.14710/teknik.v41i3.32661.
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Beneli, Daniela Scarpa, Silvia Angélica Domingues de Carvalho, and André Tosi Furtado. "Indicador composto estadual de inovação (ICEI): uma metodologia para avaliação de sistemas regionais de inovação." Nova Economia 32, no. 2 (May 2022): 359–95. http://dx.doi.org/10.1590/0103-6351/6982.
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Resumo A sistematização metodológica de levantamento de dados, compilação e agregação de Indicadores de Ciência, Tecnologia e Inovação tem se mostrado um componente importante na formulação e avaliação de políticas públicas. Assim, o objetivo deste artigo é apresentar uma metodologia de construção do Indicador Composto Estadual de Inovação que permita avaliar o desempenho inovativo dos sistemas regionais de inovação. Os procedimentos utilizados foram: investigação por materiais bibliográficos, adaptação da metodologia proposta pelo European Innovation Scoreboard e apuração das bases de dados disponíveis no sistema estatístico brasileiro. A metodologia do Indicador Composto Estadual de Inovação revelou potencialidades e fragilidades nas distintas dimensões dos sistemas regionais de inovação brasileiros. Entre elas, em São Paulo, Rio Grande do Sul, Paraná e Rio de Janeiro, constataram-se forças em recursos humanos e sistema de pesquisa, no Amazonas, por outro lado, há fragilidades nessas mesmas dimensões e destaque em inovadores e ocupações.
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Ramanauskaitė, Simona, and Antanas Čenys. "COMPOSITE DOS ATTACK MODEL / JUNGTINIS DOS ATAKŲ MODELIS." Mokslas - Lietuvos ateitis 4, no. 1 (April 23, 2012): 20–26. http://dx.doi.org/10.3846/mla.2012.05.
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Preparation for potential threats is one of the most important phases ensuring system security. It allows evaluating possible losses, changes in the attack process, the effectiveness of used countermeasures, optimal system settings, etc. In cyberattack cases, executing real experiments can be difficult for many reasons. However, mathematical or programming models can be used instead of conducting experiments in a real environment. This work proposes a composite denial of service attack model that combines bandwidth exhaustion, filtering and memory depletion models for a more real representation of similar cyber-attacks. On the basis of the introduced model, different experiments were done. They showed the main dependencies of the influence of attacker and victim’s properties on the success probability of denial of service attack. In the future, this model can be used for the denial of service attack or countermeasure optimization. Santrauka Siekiant užkirsti kelią bet kokioms sistemų saugumo grėsmėms, vienas iš svarbiausių uždavinių yra prevencija. Tai leidžia numatyti galimus pavojus ir kovos su jais būdus, nustatyti jų efektyvumą ir pan. Tačiau realiai eksperimentuoti su turima sistema dažnai gali būti pernelyg sudėtinga, todėl daug lengviau šią problemą spręsti padeda matematiniai / programiniai modeliai. Straipsnyje siūlomas naujas DoS atakų modelis, sujungiantis kelių tipų DoS atakas (srauto ir atminties išnaudojimo, netinkamo filtrų nustatymo) ir jų įtaką viena kitai. Remiantis šiuo naujai sukurtu modeliu atlikti eksperimentai, kurių metu vertinama skirtingų atakos ir aukos savybių reikšmių įtaka bendrai atakos sėkmės tikimybei.
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Oliveira, I. R. de, P. Sepulveda, and V. C. Pandolfelli. "Heterodefloculação no sistema Al2O3 - SiC." Cerâmica 44, no. 290 (December 1998): 238–43. http://dx.doi.org/10.1590/s0366-69131998000600006.
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Um estudo do comportamento reológico de suspensões aquosas de alumina e carbeto de silício foi desenvolvido, afim de se encontrar condições de processamento que otimizem a dispersão simultânea dessas matérias-primas. Os agentes dispersantes utilizados foram os polieletrólitos: sal de ácido polimetacrílico e polietilenoimina. Os pontos isoelétricos (pie) dos pós em suspensão aquosa e seus deslocamentos na presença dos defloculantes utilizados foram determinados. Obteve-se através de medidas de viscosidade e potencial zeta a concentração de defloculante que proporciona melhor dispersão de ambas as suspensões, bem como a influência do pH e da fração volumétrica de sólidos na estabilização. Neste trabalho, verificou-se que a defloculação simultânea de alumina e carbeto de silício pode ser conseguida em pHs nos quais os pós apresentem maior densidade de carga de mesmo sinal na superfície das partículas, preferencialmente utilizando-se o mesmo tipo de dispersante.
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Martínez, GM, and VH Suarez. "Bienestar de las vacas lecheras en los sistemas de compost barn." Ciencia Veterinaria 24, no. 2 (May 30, 2022): 1–19. http://dx.doi.org/10.19137/cienvet202224202.
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Riadi, Annahl, and Irvan Muzakkir. "Metode Composite Performance Indekx (CPI) Sistem Pendukung Keputusan Penilaian Desa Terbaik." Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) 5, no. 6 (December 28, 2022): 877–86. http://dx.doi.org/10.32672/jnkti.v5i6.5153.
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Abstrak - Kegiatan pelaksanaan penilaian desa terbaik harus dilakukan dengan terbuka dan kompetitif meskipun jumlah data yang dimasukan relatif banyak. Penilaian desa terbaik sering terkendala, karena setiap desa memiliki karakteristik yang berbeda sehingga menyebabkan nilai kriteria pada masing-masing desa berbeda. Perhitungan dari penilaian masih dilakukan dalam manual sehingga masih banyaknya kesalahan pelaksanaannya dan penilaian desa yang terbaik belum dilaksanakan secara terbuka dan transfaran. Berdasarkan permasalahan tersebut dibutuhkan sistem pendukung keputusan penilaian desa terbaik menggunakan metode Composite Performance Index (CPI) yag dapat diterapkan pada Kecamatan Patilanggio dalam pengambilan keputusan, sehingga dapat diimplementasikan. Sistem pendukung keputusan penilaian desa terbaik hasil dari perhitungan Metode Composite Performance Index (CPI) merupakan prioritas yang dibutuhkan sebagai bahan pertimbangan pada Kecamatan Patilanggio untuk menentukan Penilaian Desa Terbaik. Hasil yang diperoleh SPK Penilaian Desa Terbaik Berdasarkan Hasil Pengujian White Box Disimpulkan Bahwa Sistem Pendukung Keputusan Ini Bebas Dari Kesalahan Program Dengan Total Node(N)= 15, Edge(E)= 18, Predicate Node(P)= 7 Region(R)= 8Kata kunci: SPK, CPI, Penilaian, Desa Terbaik, Patilanggio Abstrack - The activity of implementing the best village assessment must be carried out openly and competitively even though the amount of data entered is relatively large. The assessment of the best village is often constrained, because each village has different characteristics, causing the criteria values for each village to be different. The calculation of the assessment is still done manually so there are still many implementation errors and the best village assessment has not been carried out openly and transparently. Based on these problems, a decision support system for the best village assessment is needed using the Composite Performance Index (CPI) method which can be applied to Patilanggio District in decision making, so that it can be implemented. The decision support system for the best village assessment resulting from the calculation of the Composite Performance Index (CPI) Method is a priority needed as material for consideration in Patilanggio District to determine the Best Village Assessment. The results obtained by the SPK for the Best Village Assessment Based on the White Box Test Results It was concluded that this Decision Support System was free from program errors with Total Node(N)= 15, Edge(E)= 18, Predicate Node(P)= 7 Region(R)= 8Keywords: SPK, CPI, Evaluation, Best Village, Patilanggio
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Abbas, Merin Nurlaisa, Ivo Colanus Rally Drajana, and Andi Bode. "Sistem Pendukung Keputusan Bantuan Rumah Rehab Menggunakan Metode Composite Performance Index." Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) 5, no. 6 (December 28, 2022): 868–76. http://dx.doi.org/10.32672/jnkti.v5i6.5152.
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Abstrak - Kemajuan suatu daerah dapat dilihat dari kesejahteraan warganya baik dari segi ekonomi, pendidikan, kesehatan dan lingkungan. Di daerah berkembang, masih banyak ketidak merataan kesejahteraan yang menyebabkan masih banyaknya warga miskin yang membutuhkan bantuan dari pemerintahan. Berdasarkan data Dinas Sosial tingkat kemiskinan masyarakat khususnya di Desa Limbula sebesar 40% sehingga banyak masyarakat miskin yang menempati rumah tidak layak huni. Dengan program rumah rehab yang diprogramkan oleh pemerintah semoga masyarakat Desa Limbula dapat menikmati manfaat khususnya bagi masyarakat miskin. Didasarkan pada hal tersebut maka dibutuhkan suatu system yang dapat membantu dalam menentukan penerima program rumah rehab. Untuk memberikan solusi terhadap permasalahan yang ada pada penelitian ini maka Sistem Pendukung Keputusan menggunakan metode Composite Performance Index (CPI) adalah salah satu solusi yang dapat memudakan prosedur pengambilan keputusan untuk memberikan bantuan rumah rehab kepada masyarakat desa Limbula. Dengan adanya sistem pendukung keputusan ini, penerima bantuan benar-benar dipilih oleh aplikasi ini sehingganya akan mengurangi nepotisme atau kecurangan dalam menentukan masyarakat penerima bantuan. Berdasarkan hasil pengujian white box dan black box sistem pendukung keputusan penerima bantuan rumah rehab dapat diterapkan secara maksimal di desa Limbula.Kata Kunci: SPK, CPI, Bantuan, Rumah Rehab Abstract - The progress of an area can be seen from the welfare of its citizens in terms of economy, education, health and the environment. In developing areas, there is still a lot of inequality in welfare which causes many poor people to need assistance from the government. Based on data from the Social Service, the poverty rate for the community, especially in Limbula Village, is 40% so that many poor people live in uninhabitable houses. With the rehabilitation house program programmed by the government, it is hoped that the people of Limbula Village can enjoy the benefits, especially for the poor. Based on this, we need a system that can assist in determining the beneficiaries of the rehabilitation house program. To provide solutions to the problems that exist in this study, the Decision Support System using the Composite Performance Index (CPI) method is one of the solutions that can facilitate decision-making procedures for providing rehabilitation housing assistance to the Limbula village community. With this decision support system, beneficiaries are actually selected by this application so that it will reduce nepotism or fraud in determining the beneficiary community. Based on the results of white box and black box testing, the decision support system for beneficiaries of rehabilitation housing assistance can be maximally implemented in Limbula village.Keywords: SPK, CPI, Aid, Rehab House
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Antunes da Costa, Tamila, and Wesley da Costa Santos. "A INVESTIGAÇÃO CRIMINAL REALIZADA PELO ÓRGÃO DO MINISTÉRIO PÚBLICO EM ANALOGIA COM O SISTEMA DE FREIOS E CONTRAPESOS." Colloquium Socialis 2, Especial 2 (December 1, 2018): 69–74. http://dx.doi.org/10.5747/cs.2018.v02.nesp2.s0258.
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This paperwork intention, initially, is to expose, theoretically, the activities of the Judiciary Police as well as the Public Prosecutors composing with the theory of the implicit powers as ground for indoctrinated positions. This paperwork uses this line of thought and information to make a direct analogy with the criminal investigations that are listed by the Public Prosecutors' initiative with the checks and balances systems. This line was essential to compose the concept of the three state powers composition. Therefore this case pondered in the bibliographical researches, readings and annotations in the same direction that it was supported by Brazilian jurisprudence of the theme. Finally we present inaccuracies and setbacks on the norms interpretations of the investigation field.
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Luo, Ji Xiang. "Simulation of the Cracking Behavior for Fiber Reinforced Composite Materials with Different Inclusion Quantity." Advanced Materials Research 568 (September 2012): 238–41. http://dx.doi.org/10.4028/www.scientific.net/amr.568.238.
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Based on the Voronoi cell finite element can also reflect fiber reinforced composites interface to take off the layer and matrix crack propagation of the new cell (X-VCFEM cell)[1]. Combined with the re-mesh strategy and grid dynamic technology, Simulated analysis in different inclusion quantity, interface crack propagation for fiber reinforced composites, the results show that for the model with four,nine,sisteen,twenty-five and thirty-six voronoi cell, The horizontal tension was not the largest; For only a Voronoi cell, The size of the horizontal tension was the largest.The result was very important reference value for manufacturing process and engineering application of fiber reinforced composite materials.
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Putra, Gilang Rizki Aji. "Sistem Peradilan Pada Kerajaan Arab Saudi." ADALAH 6, no. 4 (July 5, 2022): 15–30. http://dx.doi.org/10.15408/adalah.v6i4.26993.
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Judicial bodies in countries exhibit enormous differences and variations. The judicial system and its organization in countries are closely related to the history of the country concerned. The organizational structure of judicial power varies from one country to another. Differences in the composition of judicial power also occur because of the shape of the state, for example in the form of a federation and a royal state. The composition of judicial power in a federal state is reflected in the organizational structure and jurisdiction of the judiciary, such as in Malaysia, while the organizational structure of judicial power in a royal state is reflected in the organizational structure of judicial power, such as in Saudi Arabia. Saudi Arabia's judiciary can be one of the choices of the modern justice system and it is interesting to study because of several things, first of all, Saudi Arabia is the birthplace of the Prophet Muhammad SAW. and Islam is a role model for people around the world, but this country has a different government system from other Muslim countries.
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GARDA, N., H. D. BLOIS, B. B. NUNES, and M. P. CARVALHO. "COMPOST BARN: UMA NOVA CONCEPÇÃO NO SISTEMA DE PRODUÇÃO DO LEITE NO SUL DO BRASIL." Revista SODEBRAS 16, no. 189 (September 2021): 23–31. http://dx.doi.org/10.29367/issn.1809-3957.16.2021.189.23.
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Hernita, Shafira Jingga, Wahyudin Sidik, and Vicky F. Sanjaya. "Pengaruh E-Service dan Kualitas Sistem terhadap Kepuasan Pengguna Sistem E-Learning dengan Moderasi Perceived Value." Target : Jurnal Manajemen Bisnis 2, no. 2 (December 31, 2020): 257–64. http://dx.doi.org/10.30812/target.v2i2.1001.
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Perubahan kebutuhan dimasa modern menjadikan lembaga dan instansi konvensional berkembang untuk ikut menyediakan layanan daring, salah satunya pada bidang pendidikan. Tujuan dari penelitian ini adalah menganalisis e-service, kualitas sistem, perceived value dan e-satisfaction pada pengguna e-learning. Penelitian ini dilakukan dengan menyebarkan 125 kuesioner kepada pengguna aktif e-learning dan terdapat 100 kuesioner yang digunakan. Pengujian dilakukan dengan bantuan alat statistik berupa Structuran Equation Modelling (SEM) berbasi Partial Least Square versi 3 dengan memperhatikan nilai nilai factor loading sebesar ≥ 0,6, composite reliability dengan nilai ≥ 0,7 dan nilai variance extracted ≥ 0,50. Hasil penelitian menunjukkan bahwa e-service berpengaruh positif signifikan terhadap e-satisfaction dengan moderasi perceived value, sedangkan kualitas sistem tidak berpengaruh terhadap e-satisfaction pengguna e-learning.
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Fonseca, M., L. C. Mendonça, G. N. Souza, D. E. Cesar, J. C. Carneiro, E. C. Brito, J. F. Mendonça, M. A. V. Paiva e. Brito, and A. S. Guimarães. "Epidemiology of mastitis and interactions of environmental factors on udder health in the compost barn system." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 75, no. 1 (2023): 14–26. http://dx.doi.org/10.1590/1678-4162-12798.
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ABSTRACT This study aimed to describe the epidemiological indexes of mastitis, milk quality and udder hygiene in the Compost Barn system, as well as to search for associations between isolated pathogens from milk with compost characteristics. Three dairy herds participated in the study, and the samples were collected during different periods on each farm. Individual milk samples were collected in duplicate for SCC analysis and microbiological culture. Environmental pathogens caused most cases of clinical mastitis on farm 2, and contagious pathogens caused the most cases on farm 1. Bed moisture was not associated with the incidence of environmental pathogens. Most of the animals remained in good udder hygiene during the study. Poor udder hygiene contributed to the increased incidence of environmental pathogens in one of the farms. A higher number of animals with a hygiene score of ≥ 2 were observed during the warmer and rainfall periods. There was no association between hygiene scores and somatic cell counts. The results suggest that pathogens isolated from milk in animals confined in Compost Barn under tropical climate are like other confinement systems adopted elsewhere. The year period influenced the udder hygiene score, reinforcing the importance of bed management throughout the year.
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Córdova-López, Andrea. "Comparación del grado de microfiltración marginal en interfase diente/composite entre sistemas adhesivos de grabado total y autograbado." Odontología Activa Revista Científica 6, no. 1 (December 29, 2020): 7–12. http://dx.doi.org/10.31984/oactiva.v6i1.530.
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Objetivo: comparar el grado de microfiltración en interfase diente/composite entre sistemas adhesivos de grabado total y autograbado. Materiales y métodos: se realizó un estudio experimental in vitro con 62 premolares extraídos, sanos; a los cuales se les realizó una preparación cavitaria estandarizada Clase V, ubicada en la cara vestibular a 1mm de la línea amelocementaria, las cuales se restauraron con composite de microrelleno. Se dividió en 2 grupos, el grupo A (sistema adhesivo de grabado total) y el grupo B (sistema adhesivo de autograbado), posteriormente la muestra fue conservada en baño maría a 37°C por 24 horas. Se sometió la muestra a termociclado (300 ciclos), y se sumergieron en tinción para finalmente ser recortadas sentido longitudinal y observadas en esteroscopio determinando la ausencia o presencia de microfiltración marginal. Resultados: El 84,84% de especímenes del grupo A (sistema adhesivo de autograbado) presentaron microfiltración marginal; mientras que el 57,57% de especímenes del grupo B (sistema adhesivo de grabado total) Conclusión: La microfiltración marginal observada fue alta independiente al sistema adhesivo utilizado.
Palabras Claves: Microfiltracion, Sistemas Adhesivos, composite dental
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Córdova-López, Andrea. "Comparación del grado de microfiltración marginal en interfase diente/composite entre sistemas adhesivos de grabado total y autograbado." Odontología Activa Revista Científica 6, no. 1 (December 29, 2020): 7–12. http://dx.doi.org/10.31984/oactiva.v6i1.530.
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Objetivo: comparar el grado de microfiltración en interfase diente/composite entre sistemas adhesivos de grabado total y autograbado. Materiales y métodos: se realizó un estudio experimental in vitro con 62 premolares extraídos, sanos; a los cuales se les realizó una preparación cavitaria estandarizada Clase V, ubicada en la cara vestibular a 1mm de la línea amelocementaria, las cuales se restauraron con composite de microrelleno. Se dividió en 2 grupos, el grupo A (sistema adhesivo de grabado total) y el grupo B (sistema adhesivo de autograbado), posteriormente la muestra fue conservada en baño maría a 37°C por 24 horas. Se sometió la muestra a termociclado (300 ciclos), y se sumergieron en tinción para finalmente ser recortadas sentido longitudinal y observadas en esteroscopio determinando la ausencia o presencia de microfiltración marginal. Resultados: El 84,84% de especímenes del grupo A (sistema adhesivo de autograbado) presentaron microfiltración marginal; mientras que el 57,57% de especímenes del grupo B (sistema adhesivo de grabado total) Conclusión: La microfiltración marginal observada fue alta independiente al sistema adhesivo utilizado.
Palabras Claves: Microfiltracion, Sistemas Adhesivos, composite dental
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Lusiana Sri Wahyuni, Bahruddin, and Ida Zahrina. "Prediksi Kesetimbangan Cair-Cair Sistem Pati-PVA-Air dengan metode UNIFAC." Journal of Bioprocess, Chemical and Environmental Engineering Science 1, no. 2 (November 30, 2020): 52–62. http://dx.doi.org/10.31258/jbchees.1.2.52-62.
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The manufacture of bioplastics by mixing PVA with starch, for example from sago, cassava, sweet potatoes, and potatoes and so on have been widely practiced. However, in some cases, blending of the polymers may not produce the desired properties due to the lack of miscibility between the mixed polymers. So that in making bioplastics a mixture of starch and PVA requires data support of the miscibility of raw materials for making bioplastics into water solvents. Miscibility can be predicted using UNIQUAC Functional - group Activity Coefficient (UNIFAC) method. The activity coefficient resulting from the UNIFAC calculation of the ternary system of starch, PVA and water shows that the activity coefficient of starch tends to increase with increasing starch composition, while the activity coefficient of PVA is not very stable. The water activity coefficient shows the opposite tendency. Temperature does not seem to have a significant effect on the composition of starch and PVA, from the calculation obtained the starch composition of 0.01045 - 0.15325 and PVA 0.38407 - 0.23860. Likewise, water shows that the heating temperature does not really affect the composition of the water. The calculation of the balance of the mixture is carried out to get the right composition for the mixture of starch, PVA and water to form a perfectly mixed mixture. The results of calculating the composition in equilibrium are shown in the ternary diagram. The diagram shows a single-phase graph, where if a mixture containing 2 components dissolves completely, it will form a single-phase region.
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Salvini, V. R., M. D. M. Innocentini, and V. C. Pandolfelli. "Choque térmico em filtros cerâmicos do sistema Al2O3-SiC." Cerâmica 48, no. 305 (March 2002): 22–28. http://dx.doi.org/10.1590/s0366-69132002000100006.
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Em diversas aplicações as cerâmicas celulares são submetidas a tensões térmicas severas, tal como na filtração de metais fundidos. Contudo, há poucos estudos sobre o desempenho ao choque térmico destes materiais. Uma das razões é que a metodologia para análise desta classe de materiais deve ser distinta daquela utilizada para os materiais cerâmicos densos. Isto porque no caso dos materiais celulares para filtração de metais fundidos o meio causador do choque térmico infiltra-se rapidamente na estrutura reticular de poros, reduzindo o gradiente de temperatura entre a superfície externa e a do interior do corpo. Neste contexto, a proposta do presente trabalho é verificar os efeitos de algumas propriedades dos filtros cerâmicos em seu comportamento mecânico durante testes de choque térmico em água. As propriedades consideradas são a permeabilidade, a condutividade térmica e a área superficial específica dos filtros. Para isto foram utilizados os filtros cerâmicos do sistema de Al2O3-SiC de 8, 10, 20 e 30 ppi (poros por polegada linear).
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Tantisaputri, Intan Archita, Ali Awaludin, and Suprapto Siswosukarto. "Analisa Kekuatan Tahanan Lateral Pada Sistem Komposit LVL Kayu Sengon dan Beton Pracetak." MEDIA KOMUNIKASI TEKNIK SIPIL 25, no. 2 (January 8, 2020): 132. http://dx.doi.org/10.14710/mkts.v25i2.23068.
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LVL Sengon and concrete can be used to form a composite structure of the floor system. Connections between LVL Sengon and concrete on this composite floor system are the weakest part so that a majority of structural damages are concentrated at these joints. This study discusses the lateral resistance of lag screw joints in a composite system of LVL Sengon and precast concrete. The lateral joint resistance was evaluated through quasi-static loading upon double shear test specimens having two screws at every single shear. Variation of the specimens includes precast concrete compressive strength of 20.71 MPa and 25.29 MPa, screw diameter of 6 mm length 101.6 mm and 8 mm length 101.6 mm and 127 mm, and angle of lag screw axis against the wood fiber of 60° and 90°. The result shows that lateral resistance of the test is greater than that of EYM, SNI, and EC5 predictions. Joint failure in this experiment is due to failure in wood fiber along with the occurrence of one up to two plastic hinges in the screw.
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Dahlan, Bahrin Bin, Betrisandi Betrisandi, and Maryam Diange. "Sistem Pendukung Keputusan Seleksi Beasiswa Prestasi Miskin Dengan Metode Composite Performance Index (CPI)." Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) 5, no. 1 (February 25, 2022): 1–13. http://dx.doi.org/10.32672/jnkti.v5i1.3849.
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Abstrak— Banyaknya jumlah mahasiswa yang mengajukan beasiswa prestasi miskin ke Dinas Pendidikan Kabupaten Pohuwato serta indicator kriteria yang banyak juga, maka perlu dibangun sebuah system pendukung keputusan yang akan membantu penentuan siapa yang berhak untuk mendapatkan beasiswa miskin tersebut. Beasiswa prestasi miskin merupakan program daerah yang berada di Dinas Pendidikan menjadi salah satu jenis program yang dapat dipilih oleh masyarakat secara demokratis pada musyawarah desa dan musyawarah antar desa di Dinas Pendidikan yang diperuntukkan bagi mahasiswa dari rumah tangga miskin, yang pemberiannya setiap tahun setelah ada usulan dari masing-masing desa ke Dinas Pendidikan. Tujuan dari pemberian beasiswa tersebut adalah untuk mempercepat upaya peningkatan kualitas sumber daya manusia dengan menitik beratkan pada pemerataan kesempatan pendidikan, peningkatan kualitas pendidikan, dan peningkatan kapasistas rumah tangga miskin perdesaan sebagai bagian dari upaya mempercepat penuntasan kemiskinan.Dalam hal ini metode yang digunakan yaitu metode Composite Performance Index (CPI. Berdasarkan atas hasil pengujian white box disimpulkan bahwa sistem pendukung keputusan ini bebas dari kesalahan program dengan total Cyclomatic Complexity = 5, Region = 5, dan Independent Path = 5.Kata kunci: SPK, Beasiswa Prestasi Miskin, Composite Performance Index, PHP, MySQLAbstract- The large number of students applying for poor achievement scholarships to the Pohuwato District Education Office and a large number of criteria indicators also needs to be built in a decision support system that will help determine who is entitled to get the poor achievement scholarships. Poor achievement scholarships is a regional program in the Department of Education being one of the types of programs that can be democratically selected by the community in village meetings and inter-village meetings in the Department of Education which is intended for students from poor households, who give it every year after there proposals from each village to the Department of Education. The purpose of the scholarships is to accelerate efforts to improve the quality of human resources by focusing on equal distribution of educational opportunities, improving the quality of education, and increasing the capacity of rural poor households as part of efforts to accelerate poverty reduction. In this method used is the method of Composite Performance Index (CPI). Based on the results of the white box test, it was concluded that the decision support system was free from program errors with total Cyclomatic Complexity = 5, Region = 5, and Independent Path = 5.Keywords : SPK, Poor Achievement Scholarships, Composite Performance Index, PHP
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Annisa, Bismi. "Asesmen Aliran Kritis Sistem Pengelolaan Sampah Perkotaan di TPA Sampah." SPECTA Journal of Technology 1, no. 2 (November 27, 2019): 41–53. http://dx.doi.org/10.35718/specta.v1i2.80.
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Capacities of Cipayung landfill (final processing) has exceeded capacity. The composition of organic waste is the most dominant waste composition. This study aims to assess the critical flow of municipal solid waste management system in the Cipayung landfill thus be predicted or estimated improvement of waste management system in the landfill Cipayung. The research method using MFA STAN software for a period of one year beginning in 2017 until 2018. The results of this study are critical flow of waste management systems are in the process of sorting and empowerment are still done manually, so the impact on increasing the amount of garbage residue will be dumped in Cipayung landfill. Waste composition which includes the critical flow is organic waste, plastic, paper, glass and aluminum. All materials that are at a critical flow still can be empowered using mechanical sorting machines garbage. Management recommendation is to apply the technology of recycling, composting and RDF feedstock. The government should establish cooperation with the private sector to process waste into resources that extend the life of landfill serviceability. Through optimization scenario 1, the critical flow of waste management systems can be improved with a reduction of more than 50% of the waste to be dumped into landfill Cipayung.
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Aparicio, M., and A. Durán. "Materiales compuestos C/SiC para aplicaciones estructurales de alta temperatura. Parte II: Sistemas de protección contra la oxidación." Boletín de la Sociedad Española de Cerámica y Vidrio 40, no. 1 (February 28, 2001): 7–15. http://dx.doi.org/10.3989/cyv.2001.v40.i1.756.
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Magliano, M. V. M., and V. C. Pandolfelli. "Sistemas ligantes para concretos refratários mulitizáveis." Cerâmica 56, no. 338 (June 2010): 112–17. http://dx.doi.org/10.1590/s0366-69132010000200003.
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Concretos mulitizados são comumente utilizados na indústria siderúrgica devido as suas excelentes propriedades. Entretanto, a presença de cimento de aluminato de cálcio, juntamente com SiO2, forma eutéticos e fases de baixo ponto de fusão, motivando assim a seleção de ligantes alternativos. Neste trabalho os três principais ligantes para refratários (cimento de aluminato de cálcio, alumina hidratável e sílica coloidal) foram incorporados em concretos com alto potencial de mulitização e suas propriedades a verde e a quente foram comparadas, definindo quais ligantes apresentam melhor desempenho. Os resultados indicam que a sílica coloidal, além de facilitar a etapa de secagem, resulta em excelentes propriedades a quente e em menor teor de líquido residual após queima, quando comparados com uma composição referência de alta alumina.
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Dewi, Nadia Puspa. "Aspek Klinis Dermatitis Seboroik." Cermin Dunia Kedokteran 49, no. 6 (May 25, 2022): 327. http://dx.doi.org/10.55175/cdk.v49i6.1881.
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<p>Dermatitis seboroik adalah inflamasi kulit kronis berulang yang ditandai dengan patch dan plak eritematosa disertai skuama berminyak. Lesi terutama di area tubuh yang kaya kelenjar sebasea. Prevalensinya terutama pada usia bayi dan remaja atau dewasa muda. Patogenesis dermatitis seboroik multifaktorial, dipengaruhi oleh aktivitas kelenjar sebasea, kolonisasi Malassezia, komposisi lipid permukaan kulit, sistem imun, barrier kulit, dan faktor genetik. Tatalaksana bertujuan untuk mengurangi keluhan dan lesi penyakit, menggunakan agen topikal dan sistemik sesuai keparahan penyakit.</p><p>Seborrheic dermatitis is an chronic recurrent inflammatory skin disorder characterized by erythematous patches and plaques with oily scales. The lesions manifest in sebaceous gland-rich areas. Its prevalence is mostly in infants and adolescents or young adults. The pathogenesis of seborrheic dermatitis is multifactorial, influenced by sebaceous glands activity, Malassezia colonization, skin surface lipid composition, immune system, skin barrier, and genetic factors. Management aims to reduce symptoms and lesions, with topical and systemic agents.</p>
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Putra, Bernadi Ksatria, Abrar Riza, and Asrul Aziz. "ANALISIS KOMPOSISI GAS BUANG AKIBAT PERUBAHAN MAIN JET NOZZLE PADA SISTEM KARBURATOR MESIN." POROS 13, no. 2 (September 2, 2017): 62. http://dx.doi.org/10.24912/poros.v13i2.820.
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Abstract: Fuel entering through the main jet nozzle, affects engine performance and the composition of the exhaust gas is produced. Research the composition of the exhaust gases in machines otto one cylinder done with experimental method. The purpose of this study was to obtain the characteristics of the engine with exhaust gas analysis method. This research done with varying size main jet nozzle and varying the engine rotation every 400 rpm. Data processing the results of testing includes a comparison of the composition of the exhaust gases is HC, CO2, CO, O2, AFR, and the temperature of the exhaust gases. Then calculate the enthalpy of combustion for each main jet nozzle. The composition of the exhaust gases are best obtained from the main jet nozzle GX 160 which has the highest CO2 value of 20%, with the lowest CO value of 1.26% and the largest combustion enthalpy value with the value of 264.769 kJ. From the analysis can be known that the burning of the main jet nozzle GX 160 approaching the stoichiometric combustion.
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Kusuma, Aniek Suryanti, and Komang Sri Aryati. "SISTEM PENGARSIPAN DOKUMEN AKREDITASI BERBASIS WEB." Jurnal Teknologi Informasi dan Komputer 5, no. 1 (February 5, 2019): 139–47. http://dx.doi.org/10.36002/jutik.v5i1.647.
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ABSTRACT<br />A college must be accredited which the accreditation form ( Borang ) is used as a reference in the quality and feasibility assessment of a study program that conducted by the National Accreditation Board of Higher Education (BAN PT). The college will build a team which consist of some divisions that have their responsibilties for composing the documents based on the accreditation standard. Unfortunatelly, the team faces some problems in composing process. The main problem is the delay in collecting documents that make the team leader could not recapilutating documents. The other problem is the team leader unable to monitor the accreditation progress since there is no monitoring system. This research make a system for managing documents, so the team leader could monitor easier the completeness of document. This application would be developed using HTML, CSS, Javascript, and PHP programming languages. This archive system will store all documents in one place that could be accessed from anywhere. In addition, this system has a facility to communicate between divisions. The system testing using black box testing method to ensure all functions running properly. From the results of this research, it could be concluded this document archive system can monitor the document collection process that make accreditation process run smoothly.<br />Keywords : Document, Accreditation, Archive System<br />ABSTRAK<br />Sebuah perguruan tinggi harus terakreditasi dimana Borang digunakan sebagai referensi dalam proses penilaian kualitas dan kelayakan dari sebuah program studi yang dilakukan oleh Badan Akreditasi Nasional Pendidikan Tinggi ( BAN PT ). Perguruan tinggi akan membentuk sebuah tim khusus, yang terdiri dari beberapa divisi yang memiliki tanggung jawab masing-masing dalam penyusunan buku Borang berdasarkan standar yang sudah di tentukan. Tetapi dalam proses penyusunan, tim mengalami beberapa kendala. Kendala utamanya adalah keterlambatan pengumpulan dokumen sehingga kepala tim mengalami masalah dalam proses perekapan dokumen. Selain itu, kepala tim tidak dapat memantau perkembangan persiapan akreditasi dari masing-masing divisi karena tidak ada sistem pengelolaan dokumen.Penelitian ini akan membuat sebuah sistem pengelolaan dokumen-dokumen Borang sehingga mempermudah kepala tim untuk memantau kelengkapan dokumen. Pembangunan aplikasi ini menggunakan bahasa pemrograman HTML, CSS, Javascript dan PHP. Sistem pengarsipan ini akan menyimpan semua dokumen dalam satu wardah yang dapat diakses dari manapun. Selain itu, terdapat fasilitas untuk dapat berkomunikasi antar divisi.Pengujian sistem menggunakan metode black box testing bertujuan untuk memastikan bahwa sistem yang telah dibuat dapat berjalan dengan baik atau tidak. Dari hasil penelitian ini dapat disimpulkan bahwa sistem pengarsipan dokumen akreditasi dapat membantu proses pengumpulan berkas sehingga proses akreditasi dapat berjalan dengan lancar.<br />Kata kunci : Dokumen, Akreditasi, Sistem Pengarsipan
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Gosal, Rosalia, I. Wayan Budiarsa Suyasa, and GAM Dwi Adhi Suastuti. "BIODEGRADASI ZAT WARNA REMAZOL YELLOW FG DALAM SISTEM SUSPENSI AKTIF." ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) 12, no. 1 (May 31, 2018): 34. http://dx.doi.org/10.24843/ejes.2018.v12.i01.p05.
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Remazol Yellow FG is used in the textile industry in the process of dyeing and chromatic system. The waste of Remazol Yellow FG is dangerous for ecosystem and human health if it is thrown into the environment. This research was conducted the application of waste execution that is biodegradation of Remazol Yellow FG dye in activated suspension. The aim of this research are : 1) to obtain the optimum time of microorganisms growth of sediment which taken from mangrove ecosystem of Serangan area, 2) to determine the optimum composition in declining the rate of Remazol Yellow FG waste, 3) to determine the rapid of Remazol Yellow FG rate decline, 4) to know effectivity and microbial system that play role in biodegradation process. The textile waste used in this research was artificial waste from Remazol Yellow FG dye with concentration of 49,126 mg / L. In the first phase, it observed the growth of microorganisms which is determined by determining the highest value of VSS (Volatile Suspended Solid) as the optimum time of bacteria capable of degrading Remazol Yellow FG. Furthermore, using the optimum time, the optimal composition is determined by observing the decrease levels of Remazol Yellow FG. The rate of decrease observed from the decreased levels of Remazol Yellow FG in biodegradation process for 7 days. The effectivity obtained from percentage of Remazol Yellow FG levels contained at the time of processing. Besides, there was an identification of microorganisms that take a role in biodegradation process of Remazol Yellow FG. The results showed that 12 hours is required to obtain the optimum time of microorganism growth with highest value 28000mg/L of VSS after added into means containing the Remazol Yellow FG. The optimum composition in decreasing Remazol Yellow FG rate were composition I consisting of 900 mL glucose, 1950 mL Remazol Yellow FG waste, and 150 mL suspended grown that can reduce levels of waste from 49,126 mg/L to 34,573 mg/L. Decreased levels of Remazol Yellow FG with anaerobic-aerobic treatment for 7 days decreased from 49,126 mg / L to 3,6039 mg / L and has 92,66% effectivity. The identified bacteria and take dominant role in the process of biodegradation are Bacillus sp, Coliform, Pseudomonas sp and Staphylococcus sp. Observation number of colonies in the early processing as amounted 2,84x102 CFU / mL, in the middle of processing time at 1,24 X102 CFU / mL, and at the end of biodegradation processing of 2,08x102 CFU / mL.
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Bueno, P. R., M. M. Oliveira, M. R. Cassia-Santos, E. Longo, S. M. Tebcherani, and J. A. Varela. "Varistores à base de SnO2: estado da arte e perspectivas." Cerâmica 46, no. 299 (September 2000): 124–30. http://dx.doi.org/10.1590/s0366-69132000000300002.
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Este trabalho descreve a história dos varistores à base de SnO2. Nele são apresentadas as principais características deste novo sistema varistor e uma comparação direta com o sistema tradicional à base de ZnO, estabelecendo as vantagens e desvantagens. O trabalho também apresenta as principais dificuldades a serem enfrentadas em relação ao processamento e à exata contribuição dos dopantes nas propriedades não-ôhmicas. Novas perspectivas para este novo sistema varistor também são traçadas.
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Tanjung, Steven, Rudy Djuanda, and Angela Evelyna. "Perbedaan Kekuatan Geser Perlekatan (Shear Bond Strength) Antara Self – Adhering Flowable Composite dan Flowable Composite dengan Sistem Adhesif Self – Etch pada Dentin." SONDE (Sound of Dentistry) 4, no. 1 (July 4, 2019): 16–25. http://dx.doi.org/10.28932/sod.v4i1.1767.
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Restoration is a treatment to restore the structure of missing dental hard tissue due to caries. Flowable composite has good adaptability to the cavity wall so that it is widely used as an intermediate layer. Composite resins require an adhesive system to bond chemically with dental hard tissue. Self - adhering flowable composite combining etching, priming, and adhesive in one flowable package. This study was conducted with the aim to determine the difference in shear bond strength between Self – adhering flowable composite and flowable composite with self – etch adhesive system on dentine. The number of samples used was 38 pieces. After dentin was prepared and fixed, samples was divided into 2 groups, each group consisting of 19 samples. First group was applied with self – adhering flowable composite, second group was applied with flowable composite with self – etch adhesive system. Samples was immersed in pH 6.8 normal saline and stored for 24 hours, then dried and shear bond strength was tested using a universal testing machine. The data obtained were analyzed using independent t – test. The statistical analysis using independent t – test showed that there were significant differences in the shear bond strength between the two groups, p=0,000 (p<0.05). The study concluded that there is difference of shear bond strength between self – adhering flowable composite and flowable composite with self – etch adhesive system on dentine.
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Shepelev, V., A. Gritsenko, and G. Salimonenko. "Control of hydrocarbon emissions when changing the technical condition of the exhaust system of modern cars." FME Transactions 49, no. 3 (2021): 749–55. http://dx.doi.org/10.5937/fme2103749s.
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The most applicable ICE monitoring method is selective control followed by individual corrections for the current technical condition. The combination of a gas analyzer installed individually in each collector, a motor tester, and a loader which provides test modes makes it possible to recognize failures of exhaust and other systems with high accuracy and to assign an individual corrective action to ensure specified environmental and economic parameters. We developed a generalized mathematical model of changes in the composition of exhaust gases depending on changes in the resistance of the catalytic converter, the spark gap of the spark plug, and the capacity of the electromagnetic nozzle.
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Robertus Siahaan. "Perancangan Sistem Pendukung Keputusan Penerimaan Siswa Baru Dengan Menerapkan Metode Composite Performance Index(cpi) (studi kasus: SDN 101864 Gunung Rintih)." Jurnal Multimedia dan Teknologi Informasi (Jatilima) 3, no. 02 (March 7, 2022): 38–46. http://dx.doi.org/10.54209/jatilima.v3i02.148.
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Decision support system is part of a computer-based information system that is commonly used to support decision making in an organization or company. Decision support systems can be generated using several methods, one of which is the Composite Performance Index (CPI) method. Composite Performance Index is a composite index that can be used to determine the determination or ranking of various alternatives based on several criteria. By using this Composite Performance Index, it is hoped that the process of admitting new students is more effective and efficient so that students quickly get information about whether or not the prospective student is accepted and the results are in accordance with the expected results.
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Nurarif, Saiful, Iskandar Zulkarnain, Hendra Jaya, and Sri Kusnasari. "Sistem Pakar Mendiagnosa Kerusakan pada Mesin Motor Suzuki Satria FU Menggunakan Metode Teorema Bayes." JOURNAL OF SCIENCE AND SOCIAL RESEARCH 4, no. 2 (June 17, 2021): 106. http://dx.doi.org/10.54314/jssr.v4i2.536.
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Sistem Mesin Suzuki sangat jarang ditemukan pada sepeda motor lainnya, tentu banyak sekali kendala yang terjadi, yang jarang diketahui oleh pengguna awam. Kerusakan yang sering terjadi pada sistem Mesin Satria FU adalah sebagai berikut (1) Kerusakan DOHC, (2) Kerusakan TSCC (Twin Swirl Combustion Chamber), (3) Kerusakan SCEM (Suzuki Composite Electrochemical Material), (4) Kerusakan Sistem Transmisi. Dari permasalahan tersebut tentunya dibutuhkan suatu sistem yang dapat dengan mudah digunakan oleh pengguna sepeda motor Satria FU yang tidak begitu mengerti tentang sistem Mesin. Sistem yang mampu untuk mendeteksi kerusakan Mesin Satria FU tersebut adalah sistem pakar. Sistem Pakar merupakan sebuah sistem yang mampu mengidentifikasi sebuah permasalahan dengan menggunakan keahlian seorang pakar yang telah ditanamkan ke dalam sebuah sistem dengan menggunakan algoritma tertentu. Implementasi sistem pakar ini sangat banyak digunakan untuk kepentingan komersial karena sistem pakar dapat dipandang sebagai cara penyimpanan pengetahuan pakar dalam bidang tertentu ke dalam program komputer dan dirancang sedemikian rupa sehingga dapat memberikan keputusan dan melakukan penalaran secara cerdas. Hasil penelitian merupakan terciptanya sebuah aplikasi Sistem Pakar dengan Metode Teorema Bayes yang dapat membantu pemilik Satria FU dalam mengetahui kerusakan Sistem Mesinnya
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Gutiérrez de Solabarría, S., and J. M. San Juan-Núñez. "Estudio de la viabilidad de fabricación de un sistema codo (fundición inoxidable ferrítica, GX 260 Cr27)-tubo composite (Incolloy 800 HT+Stal 2465) solidario por fusión." Revista de Metalurgia 31, no. 5 (October 30, 1995): 326–31. http://dx.doi.org/10.3989/revmetalm.1995.v31.i5.949.
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Dewi, Desi Erni, Rima Aprilia, and Nurul Huda Prasetya. "SISTEM PENDUKUNG KEPUTUSAN PENILAIAN KENAIKAN GOLONGAN PADA KARYAWAN PTPN VI UNIT USAHA SOLOK SELATAN MENGGUNAKAN METODE COMPOSITE PERFORMANCE INDEX (CPI)." MAp (Mathematics and Applications) Journal 3, no. 1 (June 30, 2021): 1–7. http://dx.doi.org/10.15548/map.v3i1.2586.
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Peran sistem pendukung keputusan akan membantu pihak kepegawaian untuk mencapai tujuan dari penilaian kinerja karyawan seperti kenaikan golongan tanpa mengesampingkan parameter-parameter yang sudah ditentukan oleh pihak instansi terkait. Metode composite performance index (CPI) adalah indicator gabungan yang dapat digunakan untuk menentukan suatu penilaian atau peringkat dari berbagai alternatif (i) dengan berdasarkan beberapa kriteria (j). Hasil penelitian ini menunjukkan bahwa perhitungan nilai alternatif dan tabel index gabungan memperoleh hasil alternatif B3 memiliki nilai tertinggi dan mendapat ranking pertama serta mendapatkan kenaikan golongan paling tinggi yaitu dari 1A/4 menjadi 1B/0 pada periode 2019 dengan nilai 108,78.Kata Kunci: Sistem Pendukung Keputusan, Composite Performance Index (CPI), Kenaikan Golongan
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Riasa, I. Putu, Rukmi Sari Hartati, Ida Bagus Gede Manuaba, and Dewa Ayu Sri Santiari. "Pengaruh PLTB Sidrap Terhadap Sistem Kelistrikan Sulawesi Selatan." Majalah Ilmiah Teknologi Elektro 19, no. 1 (October 16, 2020): 27. http://dx.doi.org/10.24843/mite.2020.v19i01.p04.
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New and renewable energy has become the green energy trend in the electric power system going forward. The Bayu Power Station (PLTB) is one of the centers of electricity generation with a primary source of energy that is pollution-free and environmentally friendly. Currently in the South Sulawesi system, PLTB has operated with a total power of 70 MW at a base load of around 700 MW. Because PLTB is very dependent on wind conditions, the power generated becomes unstable and this has a significant intermittent effect on the stability of the system. The results of this study indicate that the intermittent composition of nuclear power plants is increasing from the April-July 2018 period. This ever increasing contribution disrupts frequency stability in the South Sulawesi system
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Salvini, V. R., A. M. Pupim, M. D. M. Innocentini, and V. C. Pandolfelli. "Otimização do processamento para a fabricação de filtros no sistema Al2O3-SiC." Cerâmica 47, no. 301 (March 2001): 13–18. http://dx.doi.org/10.1590/s0366-69132001000100004.
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Neste trabalho avaliou-se o efeito das condições de processamento cerâmico na permeabilidade e resistência mecânica de filtros celulares. Esta avaliação compreendeu a fabricação e caracterização de filtros cerâmicos de 8 ppi (poros por polegada linear) no sistema Al2O3-SiC produzidos a partir de suspensões cerâmicas com diferentes ajustes granulométricos. O ajuste granulométrico tem por objetivo otimizar o empacotamento das partículas nos filamentos sólidos e, conseqüentemente, melhorar as propriedades mecânicas do filtro, porém sem comprometer a permeabilidade do mesmo. Neste estudo, a caracterização compreendeu tanto as propriedades reológicas das suspensões selecionadas bem como a caracterização física, fluidodinâmica e mecânica dos filtros obtidos.
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Rustam, Rustam, Pakarti Riswanto, Dwi Marisa Efendi, Asep Afandi, Supriyanto ., Sidik Rahmatullah, Sigit Mintoro, and Desri Arisandi. "SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN GURU TELADAN MENGGUNAKAN METODE COMPOSITE PERFORMANCE INDEX (CPI) PADA SMK NEGERI 1 KOTABUMI." Jurnal Informasi dan Komputer 10, no. 1 (April 25, 2022): 231–38. http://dx.doi.org/10.35959/jik.v10i1.318.
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SMK Negeri 1 Kotabumi merupakan salah satu Sekolah Menengah Kejuruan yang menyelenggaraan pemilihan guru teladan dengan harapan dengan diadakannya pemilihan guru teladan dapat memacu para guru supaya lebih meningkatkan kualitas dalam mengajar. Penilaian guru teladan juga masih menggunakan cara manual yang dilakukan menggunakan lembar penilaian yang dilakukan oleh panitia, sehingga memerlukan waktu yang lebih lama serta hasil yang didapat belum maksimal.
Metode yang dilakukan pada penelitian ini menggunakan Metode Composite Performance Index (CPI) Merupakan indeks gabungan (Composite Index) yang dapat digunakan untuk menentukan penilaian atau peringkat dari digunakan untuk menentukan penilaian atau peringkat dari berbagai alternatif berdasarkan beberapa kriteria yang diharapkan dapat membantu menselesaikan permasalahan pemilihan guru teladan pada SMK Negeri 1 Kotabumi.
Dalam penelitian ini penggunaan Metode Composite Performance Index (CPI) dapat diimplementasikan kedalam bahasa pemograman PHP dan menghasilkan keputusan yang sesuai dengan kriteria pemilihan guru teladan, berdasarkan data sampel yang digunakan sebanyak 10 data guru maka Widodo,Spd.MM dengan nilai 2191.67 diputuskan menjadi guru teladan
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Steil, M. C., F. C. Fonseca, Y. V. França, J. F. Q. Rey, E. N. S. Muccillo, and R. Muccillo. "Montagem, calibração e testes de um sistema de medidas elétricas em função da temperatura e da pressão parcial de oxigênio." Cerâmica 48, no. 307 (September 2002): 146–52. http://dx.doi.org/10.1590/s0366-69132002000300007.
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Neste trabalho são descritas a montagem e a calibração de um sistema de medidas elétricas com o controle da pressão parcial de oxigênio. Este sistema permite a realização de medidas elétricas desde a temperatura ambiente até 1000 °C em ampla faixa de pressões parciais de oxigênio entre 10-6 e 1 atm. O sistema utiliza as propriedades eletroquímicas dos eletrólitos sólidos à base de zircônia estabilizada para produzir e detectar pressões parciais de oxigênio com boa precisão. As calibrações e testes realizados, compreendendo a verificação das leis de Nernst e de Faraday, evidenciaram o bom funcionamento dos dispositivos construídos. A montagem apresentada neste trabalho, utilizada em conjunto com um sistema de medidas de espectroscopia de impedância, permite a realização de diversos estudos acerca das propriedades elétricas de materiais. Também são apresentados neste trabalho dois exemplos destes estudos, que consistem na investigação das propriedades elétricas de eletrólitos sólidos à base de zircônia e de varistores à base de óxido de estanho.
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Zulkarnain, Randy, Robby Fiqry Maulana, Netti Herlina, and Lies Setyowati. "Perencanaan Sistem Pengelolaan Sampah Di PT PLN (Persero) Unit Pendidikan Dan Pelatihan." KILAT 9, no. 1 (April 25, 2020): 9–17. http://dx.doi.org/10.33322/kilat.v9i1.747.
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The source of waste produced by PT PLN (Persero) UPDL Tuntungan comes from offices and classrooms, mess and dormitories, parks and roads as well as dining rooms. We need a good waste management system planning for optimisation existing waste treatment. The research objective is to calculate the generation and composition, plan operational techniques and waste management schemes. The method of measuring the generation and composition of waste uses SNI 19-3964-1994. The results of the study showed that the solid waste generation based on the maximum capacity produced was 210.10 kg/day or 1,752.23 l/day with the composition of the solid waste produced as a whole of food remaining 11.20%, wood and plant waste 65.07%, fabric/textile 1.59%, rubber 1.26%, plastic 10.80%, metal 0.75%, glass, 1.14%, paper 5.34%, tissue 1.29%, and styrofoam 1, 56%. Garbage operational techniques that will be planned starting from storage using a 20L bin will be divided into 5 types, namely organic, plastic, paper, etc. and hazardous and toxic materials, and placed 1 container of 120L size garbage for trash from the dining room. Collection and transfer using 660L depot transfer. Transporting garbage using a 1 m3 garbage motor to the TPS for further composting and sorting. For garbage that still has a sale value, it is sold to pelapak and the residual waste is taken to the landfill.
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Albuquerque, Pedro Paulo Albuquerque Cavalcanti de, Marina Barreto Pereira Moreno, Alexander Cassandri Nishida, Ezequias Costa Rodrigues Junior, and Carlos Eduardo Francci. "Microhardness, Color Stability and Microstructural Analysis of Prefabricated Composite Resin Veneers." Journal of Health Sciences 21, no. 3 (September 24, 2019): 284. http://dx.doi.org/10.17921/2447-8938.2019v21n3p284-289.
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AbstractThe aim of the work was to determine Knoop microhardness (KH), color stability (ΔE00) and microstructure of prefabricated composite resin veneers (PCRVs). Two PCRVs systems (Componeer Brilliant New Generation, Coltene, Altstätten, Switzerland; and Direct Veneer, Edelweiss, Wolfurt, Austria) were tested. KH was measured at the buccal surface of the PCRVs. Color analyze was evaluated by a spectrophotometer and ΔE00 calculated using CIEDE2000 formula. Microstructure of the PCRVs was characterized using scanning electron microscopy (SEM). Data of KH and ΔE00 were subjected to One-way ANOVA followed by Tukey post hoc test (α=0.05). Componeer (KH = 46) and Edelweiss (KH = 43) presented statistical similar hardness results (p>0.05). Componeer (ΔE00water= 0.1 and ΔE00coffee= 13.4) showed lower ΔE00 than Edelweiss (ΔE00water= 0.5 and ΔE00coffee= 18.7). SEM-images indicated similar microstructures of the PCRVs tested. Although PCRVs present similar microhardness and microstructure, Componeer showed higher color stability and lower extrinsic pigmentation to coffee in comparison to Edelweiss. Direct composite resin veneer treatment might be simplified with PCRVs. However, the high pigmentation observed in the PCRVs could generate aesthetic failures over the time.Keywords: Microscopy, Electron, Scanning. Color. Dental Veneers.ResumoO objetivo do trabalho foi determinar a microdureza Knoop (KH), estabilidade de cor (ΔE00) e a microestrutura de facetas de resina composta pré-fabricadas. Os sistemas de facetas Componeer e Edelweiss foram testados. Para cada sistema, a microdureza foi avaliada na superfície vestibular das facetas. A análise da estabilidade de cor foi feita mediante o emprego de um espectrofotômetro e a alteração de cor foi calculada seguindo a fórmula determinada pelo CIEDE2000. A microestrutura dos sistemas foi observada e caracterizada a partir de um microscópio eletrônico de varredura. Os resultados de microdureza e alteração de cor foram submetidos a análise de variância de um fator complementados pelo teste de Tukey (α=0,05). Os sistemas de facetas pré-fabricadas de resina composta apresentaram valores estatisticamente similares de microdureza (p>0,05). O grupo Componeer apresentou uma alteração de cor inferior em relação ao grupo Edelweiss. Os dois sistemas apresentaram uma elevada pigmentação após imersão em solução com café. A microestrutura dos sistemas se mostrou similar em função da avaliação das imagens em microscopia. Apesar dos sistemas apresentarem microdureza e microestrutura similares, o sistema Componeer gerou menor alteração de cor com menor pigmentação a bebida corante empregada em comparação ao sistema Edelweiss. A técnica de facetas dentárias pode ser simplificada utilizando um sistema de facetas pré-fabricadas de resina composta. Todavia, a elevada pigmentação observada no presente estudo deve ser levada em consideração já que o tratamento com esse tipo faceta tende a ser um procedimento estético com durabilidade elevada.Palavras-chaves: Microscopia Eletrônica de Varredura. Cor. Facetas Dentárias.
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Sena Augusto, Marta. "Princípio compositivo: sobre o seu propósito no processo de projecto arquitectónico." Astrágalo. Cultura de la Arquitectura y la Ciudad, no. 30 (2022): 173–86. http://dx.doi.org/10.12795/astragalo.2022.i30.10.
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Como se conforma um projecto de arquitectura? Qual é o papel do princípio compositivo no processo de um projecto? Como se deduz um princípio compositivo da problemática projectual? De que modo este princípio organizador da forma, que contém todo o desenvolvimento morfológico potencial, define os elementos que entram na composição, o seu comportamento e a sua relação com os outros elementos?; De que modo contribui para a coerência das partes individuais no todo e fazê-las permanecer dentro da mesma família formal?; como se desenvolve morfologicamente um princípio compositivo até chegar à composição final? e como se avalia e valora um princípio compositivo? Estas são as questões principais abortadas neste ensaio que trata o princípio compositivo dentro do processo de projecto arquitectónico. O objectivo do princípio compositivo é analisado com apona analogia da uma composição musical onde o tema principal vem esclarecido e reforçado com as várias variações ao tema que conformam a inteira composição. O sistema de elementos e regras do princípio composicional é comparável às regras e peças de um jogo. O processo de desenvolvimento do princípio compositivo está ligado ao método de tentativa e erro apoiado de importantes principais mecanismos cognitivos como a atenção selectiva. Por último são analisados os critérios de avaliação da adequação do princípio compositivo à problemática projectual.
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Rodrigues, J. A., V. P. Klyuev, and V. C. Pandolfelli. "Comportamento da viscosidade de um compósito vidro-partícula de alumina." Cerâmica 49, no. 310 (April 2003): 82–86. http://dx.doi.org/10.1590/s0366-69132003000200004.
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O aumento na produção de concretos refratários de alto desempenho tem demandado proporcional acréscimo no entendimento do comportamento reológico de suspensões concentradas de sólidos. Os concretos podem ser considerados como sistemas contendo agregados cujo diâmetro médio de partícula é superior a 100 mm e partículas finas que constituem a matriz. A reologia desse sistema é determinada, predominantemente, pela viscosidade da matriz, porém influenciada por parâmetros associados aos agregados. Este trabalho simula um sistema fluido-partícula, empregando um compósito vidro-partícula de alumina, caracterizando-o quanto à sua viscosidade em temperaturas em torno de 600 °C. Um viscosímetro de flexão foi empregado para medir as altas viscosidades do compósito. São mostrados resultados de viscosidade para diferentes teores de partículas de alumina. O sistema vidro-partícula apresentou um máximo na viscosidade para teores em torno de 50%-vol de partículas. Até aproximadamente 40%-vol de partículas, o compósito se comporta como um sistema newtoniano entre 560 ºC e 670 °C. Os resultados deste trabalho indicam a possibilidade de simulação da reologia na preparação de concretos refratários e da fluência do concreto operando em alta temperatura.
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Manso, Isabella S., Lisia L. Valente, Eliseu A. Münchow, Cristina P. Isolan, Fábio G. Lima, and Rafael R. Moraes. "Bonding to composite resin, dentin, and composite-dentin interface, regarding restoration repair." Journal of Clinical Dentistry and Research 16, no. 2 (May 16, 2019): 54–68. http://dx.doi.org/10.14436/2447-911x.16.2.054-068.oar.
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O presente estudo avaliou a resistência de união do reparo (RUR), ângulo de contato (θ) e morfologia da superfície de reparos de compósito na dentina (DE), resina composta (RC) e interface dentina-compósito (DE-RC) após diferentes tratamentos de superfície. Incisivos bovinos foram usados nos testes de RUR e θ; blocos de RC (Opallis, FGM) foram preparados para avaliação do θ com a água. Os espécimes foram separados em quatro grupos (n=10 para RUR; n=5 para θ) de acordo com o agente de união aplicado: sem tratamento (C); condicionamento ácido seguido da aplicação de adesivo (Ac+Ad); silano (S); e ácido + silano + adesivo (Ac+S+Ad). Para a RUR, o teste de resistência de união ao microcisalhamento foi realizado. Para o teste de θ, gotas d’água foram dispensadas na superfície dos espécimes após o tratamento com os agentes de união. Todos os substratos testados foram analisados em microscopia eletrônica de varredura, e os dados foram analisados por ANOVA e teste de Student-Newman-Keuls (α=0,05). Na DE, a aplicação de Ac+S+Ad reduziu o molhamento da dentina. Na RC, todos os agentes de união aumentaram o molhamento comparados a C. A RUR foi significativamente maior para os grupos tratados com adesivo, comparados aos grupos C e S, tanto na DE quanto na interface DE-RC. Na RC, apenas C mostrou menor resistência de união, comparado aos outros grupos. Em conclusão, os dentistas devem atentar que o desempenho do reparo de restaurações de resina composta pode depender dos substratos envolvidos no procedimento, e que a aplicação do sistema adesivo é o principal tratamento químico recomendado para uma adequada união a todos os substratos.
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Salvini, V. R., M. D. M. Innocentini, and V. C. Pandolfelli. "Correlação entre permeabilidade e resistência mecânica de filtros cerâmicos no sistema Al2O3-SiC." Cerâmica 46, no. 298 (June 2000): 97–103. http://dx.doi.org/10.1590/s0366-69132000000200008.
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Tem sido crescente o uso de cerâmicas reticulares em processos de refino e purificação de metais fundidos, filtração de gases quentes e combustão catalítica. A aplicação depende da composição química e das propriedades físicas do material (número de poros por polegada linear (ppi), porosidade e diâmetro de poro). Há um consenso de que a melhoria das propriedades dos filamentos resulta em um melhor desempenho mecânico do filtro cerâmico. Entretanto, a análise dos valores de resistência mecânica não pode ser considerada isoladamente, uma vez que para filtros cerâmicos esta tem que estar associada à permeabilidade. Neste trabalho é feita uma análise entre as propriedades fluidodinâmicas e mecânicas de filtros cerâmicos no sistema Al2O3-SiC na faixa de 8 a 90 ppi. Os resultados obtidos permitem considerações tanto no aspecto do processamento cerâmico quanto no modelamento mecânico apresentado na literatura.
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Oliveira, I. R. de, A. R. Studart, and V. C. Pandolfelli. "Projeto da reologia de concretos refratários zero-cimento no sistema Al2O3-SiC-C." Cerâmica 47, no. 304 (December 2001): 180–86. http://dx.doi.org/10.1590/s0366-69132001000400003.
Full textAbstract:
Concretos refratários no sistema Al2O3-SiC-C vêm sendo utilizados principalmente no revestimento de canais de corrida de altos-fornos. A associação dessas matérias-primas tem elevado o desempenho dos concretos refratários frente às severas condições de trabalho, devido ao aumento da resistência ao choque térmico e ao ataque por escória e metal fundido. Apesar disso, o nível de conhecimento científico sobre a dispersão das partículas desse sistema multifásico é limitado. Neste trabalho, suspensões representativas da matriz de concretos refratários zero-cimento no sistema Al2O3-SiC-C foram preparadas para a avaliação da eficiência de aditivos na dispersão simultânea de diferentes matérias-primas, bem como para a análise do comportamento reológico da matriz em função do pH e teor de aditivo. Os ácidos poliacrílico e cítrico e um surfactante não iônico foram usados como dispersantes. Os valores de viscosidade aparente e tensão de escoamento obtidos foram usados para construir mapas de estabilidade da matriz. Medidas de pH e fluidez de concretos preparados com diferentes teores de aditivo mostraram que as condições iniciais de pH não foram correspondentes à região ótima de dispersão estabelecida pelos mapas de estabilidade. O uso de altos teores de ácido cítrico, bem como, o deslocamento do pH do concreto na direção da região ótima de dispersão foram eficientes para otimizar a sua fluidez.
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Kupchak, L., S. R. M. Antunes, M. V. Parizotto, S. M. Tebcherani, D. Setti, S. A. Pianaro, and A. C. Antunes. "Investigação da cinética de sinterização para o estágio inicial no sistema SnO2: ZnO." Cerâmica 51, no. 319 (September 2005): 308–12. http://dx.doi.org/10.1590/s0366-69132005000300022.
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A sinterização do sistema SnO2:0,6 mol% ZnO, obtido via mistura de pós, foi investigada por dilatometria sob taxa de aquecimento constante de 2,5, 5,0 e 10,0 ºC.min-1. Os modelos clássicos de sinterização de Woolfrey-Bannister e Johnson foram utilizados para analisar o estágio inicial da sinterização e calcular a energia de ativação. Os valores de energia de ativação determinados por esses modelos são de 547 kJ.mol-1 e 511 kJ.mol-1 para Woolfrey-Bannister e Johnson, respectivamente. Verificou-se a coexistência de dois mecanismos de sinterização, difusão na rede e difusão por contorno de grão, para o estágio inicial da sinterização do sistema SnO2:0,6 mol% ZnO.