bluuebunny/crossref_metadata_2025 huggingface dataset:
O USO DE RECURSOS NATURAIS E OS IMPACTOS NO MEIO AMBIENTE: REVISÃO SISTEMÁTICA
Authors: ASSUNÇÃO Weaver Bruno Moreira de , DEUS Ricardo Jorge Amorim DE
Published: January 2023

Anecessidadedereduzirosimpactosambientaisassociadosaoacessoàenergiaea buscapelasustentabilidadegeramumdiálogoglobal,incluindointeressesambientais,sociais, políticoseeconômicos.A presente pesquisa trata-se de um estudo de revisão, exploratório, bibliográfico e documental utilizando fontes de pesquisas e estudos de caso que consiste na consulta de material científico já publicado por diferentes autores em diferentes fontes que estejam disponíveis ao público. A coleta de dados iniciou-se após a estruturação do aporte documental, considerando energias renováveis e não-renováveis, e seus impactos no meio ambiente, na saúde e bem-estar na vida atual e futura, utilizando fontes de pesquisa como Google Acadêmico, Periódico Capes, Science Direct e Universidade Federal do Pará, direcionando palavras chave como energia renovável no Brasil, matriz energética sustentável, fontes renováveis e não renováveis geradoras de energia elétrica no Brasil, evolução das energias renováveis e perspectivas, energia solar, Maremotriz, hidrelétricas, biomassa e etc. O período da coleta de dados foi durante os meses de outubro de 2021 a março de 2022. Os resultados demonstram que oPlanodeRecursosIntegrados(PIR)utilizadoparaoplanejamento energéticopermiteareduçãodoscustostotaisedosimpactosambientaisesociais. Além disso, esteartigo explicaqueosefeitosnaturaisdequatrofontesdeenergiarenováveisenãorenováveis-termelétrica,hidrelétrica,eólicaesolarfotovoltaica-podemsermitigadospormeiodoPlanejamento IntegradodeRecursos.
CULTURA E IDENTIDADE EM DOURADOS – MS
Authors: Oliveira Ailson Barbosa de
Published: January 2023

O presente trabalho visa refletir sobre a temática território e identidade, tomando como referencial de análise os Paraguaios de/em Dourados-MS. Pensar sobre identidade, a partir do recorte territorial, pressupõe considerar o sentido de pertencimento, institucionalizado ou não. Pertencer a um ponto no território é fruto de relações sociais historicamente produzidas, carregando significados, afetos, vivências, experiências e desejos. Considerando essa perspectiva, tomamos como objeto de estudo os paraguaios que vivem na cidade de Dourados-MS, buscando avaliar, histórias de vida, suas rotinas, possíveis resistências, ou, num sentido mais amplo, o seu sentido de pertencimento. A metodologia adotada neste estudo se processou por meio de: pesquisa de campo, visando maior aproximação como a população paraguaia; entrevistas, com sujeitos que diretamente trabalham com essa população, como professores, funcionários do setor de comércio, de imigração e saúde. Por meio do levantamento realizado, dos depoimentos e enunciados, buscamos analisar o conjunto de elementos, signos e referenciais, a partir das relações que estabelecem com o lugar.
A ESCOLARIZAÇÃO DE PRÁTICAS MULTILETRADAS: A ESCOLA ATENTA ÀS RELAÇÕES CONSTRUÍDAS NO CIBERESPAÇO
Authors: Florêncio Roberto Remígio , Trapiá FILHO João de Sá Araújo , SOUZA adnaelson da Silva
Published: January 2023

Este trabalho propõe uma reflexão sobre a importância da escolarização de práticas multiletradas em consonância àcontemporaneidade cultural, marcada pelo ciberespaço e pela cibercultura. A partir das discussões sobre as formas de escolarização, a pedagogia dos multiletramentos e a consolidação da rede mundial de computadores, examina-se de que forma a escola se porta frente às multimodalidades textuais,às relações sociais presentes no ciberespaço. Foram utilizados como aporte teórico as questões sócio-histórico-culturais das formas de escolarização, além de apresentar definições desse conceito; conceitos sobre ciberespaço e cibercultura; e a pedagogia dos multiletramentos, que apresenta ponderações acerca de novas funções da escola. A intenção da presente discussão não é exaurir o tema ou estabelecer caminhos inquestionáveis, mas provocar um olhar sobre o papel da escola na atualidade, especialmente no contexto do ciberespaço.
A review of research on pedagogical content knowledge in science and mathematics education in the last five years
Authors: Galimova Elvira G. , Zakharishcheva Marina A. , Kolomoets Elena N. , Chistyakov Alexey A. , Prokopyev Alexey I. , Beloborodova Alexandra V. , Ilaeva Railya A.
Published: January 2023

This study aims to review Pedagogical Content Knowledge (PCK) studies related to science and mathematics education in the ERIC database. In addition, journals published in the Eric database were searched using the same keyword. Thirty-five science and mathematics education studies were analyzed using standards from the related literature. A qualitative thematic review was conducted in this study. All articles were downloaded and read by the researchers. Each researcher examined them together to determine themes. The themes determined were the subjects and topics studied, the profile of the participants, the data collection instruments, the study design, and the consideration of pedagogical content knowledge with its components. The results were reviewed in terms of the competencies of preservice and in-service science and mathematics teachers in pedagogical content knowledge, the analysis of the development of prospective teachers' pedagogical content knowledge, and the components of pedagogical content knowledge. Some implications of these findings were suggested for determining and developing pedagogical content knowledge of prospective and in-service science and mathematics teachers.
Elecciones de Congreso en Colombia en 2022 ¿Pluralismo, cambio y renovación?
Authors: Duque Daza Javier
Published: January 2023

El objetivo de este artículo es analizar las elecciones del 2022 en Colombia. El artículo está centrado en el nivel de pluralismo y en el grado de renovación y estabilidad de los integrantes del parlamento. La metodología incluyó dos aspectos centrales; por una parte, la clarificación conceptual y teórica (el pluralismo y la continuidad/estabilidad); por otra, las dimensiones del análisis: para el pluralismo se diferenciaron a los partidos según su identificación de izquierda o derecha, y entre partidos tradicionales y alternativos; la presencia de minorías étnicas y religiosas; el género de los parlamentarios y su condición de insider o de outsider; y para la medición de la renovación-estabilidad de los congresistas se tuvo en cuenta la continuidad y se agruparon según el número de periodos de permanencia en sus curules en las dos décadas  del periodo 2002-2022. La información electoral fue obtenida de fuentes oficiales (Registraduría Nacional del Estado Civil), además de la bibliografía secundaria e información periodística para datos complementarios. Los dos resultados principales indican que el Congreso elegido tiene un alto grado de pluralismo y que hay en ambas cámaras altos niveles de renovación.
Preparation of Polyester/ Micro Eggshell Fillers Composite as Natural Surface Coating
Authors: Jassim Aveen N. , Jassim Widad H.
Published: January 2023

To fabricate an inexpensive surface coating with excellent mechanical properties with good water resistance and thermal diffusion, white eggshell fibers with particle size (~1micrometer) has been added by different weight percentages (1,2,3,4,5,6,7 and 8 %) to Unsaturated Polyester.
The weight ratio (4%) of eggshell powder is a good ratio to be added to polyester to improve its mechanical properties, such as hardness, impact strength, and wear resistance. The hardness was improved by (3.75%); impact strength has the same value as polyester, flexural strength by (8.43%) and high improvement in wear resistance (74.4%), as well as to get further improvements in mechanical properties of polyester, the eggshell powder was added with (5%), where the hardness was improved by (3.63%), impact strength improved by (~23%) and the flexural strength by (23.23%)but the wear resistance by (2.15%) only .
The resistance to thermal of polyester was improved to (9.95%) and (13.77%) by adding the eggshell powder with ratios (of 4%) and (5%), respectively.
(Polyester/ 4% eggshells).  And (Polyester/ 5% eggshells) composites have a higher resistance to water diffusion after being immersed in water between (1-4 weeks).
The electron microscope image was used to observe the degree of homogeneity in polyester composite microstructure, which improved the results mechanical and thermal results.
Using the Size Strain Plot Method to Specity Lattice Parameters
Authors: Jalil Marwah T. , Harbbi Khalid H.
Published: January 2023

X-ray diffractometers deliver the best quality diffraction data while being easy to use and adaptable to various applications. When X-ray photons strike electrons in materials, the incident photons scatter in a direction different from the incident beam; if the scattered beams do not change in wavelength, this is known as elastic scattering, which causes amplitude and intensity diffraction, leading to constructive interference. When the incident beam gives some of its energy to the electrons, the scattered beam's wavelength differs from the incident beam's wavelength, causing inelastic scattering, which leads to destructive interference and zero-intensity diffraction. In this study, The modified size-strain plot method was used to examine the pattern of x-ray diffraction lines (101),(121),(202),(042), and (242) for calcium titanate(CaTiO3) nanoparticles in this study. To calculate the new variables, the size strain plot method was created., X-ray line analysis and calculation of crystal size and lattice tension of calcium titanate oxide nanoparticles. It is used to calculate the crystal volume (44.7 nm) and to calculate the determination of network parameters such as the texture modulus (Tc), macro stress (MS), specific surface area (SSA), and dislocation density(η), respectively.
On the Stability and Acceleration of Projection Algorithms
Authors: Maibed Zena H. , Salem Noor N.
Published: January 2023

The focus of this paper is the presentation of a new type of mapping called projection Jungck zn- Suzuki generalized and also defining new algorithms of various types (one-step and two-step algorithms) (projection Jungck-normal N algorithm, projection Jungck-Picard algorithm, projection Jungck-Krasnoselskii algorithm, and projection Jungck-Thianwan algorithm). The convergence of these algorithms has been studied, and it was discovered that they all converge to a fixed point. Furthermore, using the previous three conditions for the lemma, we demonstrated that the difference between any two sequences is zero. These algorithms' stability was demonstrated using projection Jungck Suzuki generalized mapping. In contrast, the rate of convergence of these algorithms was demonstrated by contrasting the rates of convergence of the various algorithms, leading us to conclude that the projection Jungck-normal  algorithm is the fastest of all the algorithms mentioned above.
Quasi Semi and Pseudo Semi (p,E)-Convexity in Non-Linear Optimization Programming
Authors: Hazim Revan I. , Majeed Saba N.
Published: January 2023

The class of quasi semi -convex functions and pseudo semi -convex functions are presented in this paper by combining the class of -convex functions with the class of quasi semi -convex functions and pseudo semi -convex functions, respectively. Various non-trivial examples are introduced to illustrate the new functions and show their relationships with -convex functions recently introduced in the literature. Different general properties and characteristics of this class of functions are established. In addition, some optimality properties of generalized non-linear optimization problems are discussed. In this generalized optimization problems, we used, as the objective function, quasi semi -convex (respectively, strictly quasi semi -convex functions and pseudo semi -convex functions), and the constraint set is -convex set.
A Review Article: Green Synthesis by using Different Plants to preparation Oxide Nanoparticles
Authors: HUSSEIN Ali , Entisar E. Al-Abodi
Published: January 2023

Green nanotechnology is a thrilling and rising place of technology and generation that bracesthe ideas of inexperienced chemistry with ability advantages for sustainability, protection, andthe general protection from the race human. The inexperienced chemistry method introduces aproper technique for the production, processing, and alertness of much less dangerous chemicalsubstances to lessen threats to human fitness and the environment. The technique calls for inintensity expertise of the uncooked materials, particularly in phrases in their creation intonanomaterials and the resultant bioactivities that pose very few dangerous outcomes for peopleand the environment. In the twenty-first century, nanotechnology has become a systematicbreakthrough. Metallic nanoparticles (steel or steel oxide nanoparticles) have attracted loads ofhobbies because of their different physiological, technological, and chemical The biologicaltechnique is popular because it produces green nanoparticles in an environmentally friendly,simple, easy, quick, and cost-effective manner. Amino acid phenolic, flavonoids, terpenoids,and proteins are examples of reduced and oxidizing agents. Agents of stabilization, synthesisusing plants, on the other hand, was already being debated., basics of green synthesis techniquesexplored in this study with an emphasis on metals or metal oxides (ZnO, AgO, and TiO2), terpenoids as well as proteins, which can operate as chemical reducing and oxidizing agents, aswell as stabilization and of agents. Green synthesis using plants, , is still being debated.
Evaluation of Heavy Metals Concentration in Street, Storm and Suspended Dust in Al-Zafaraniya Area, Baghdad- Iraq
Authors: Aljewari Azhar F.M. , Al-Salman Ibrahim M.A.
Published: January 2023

The current study was applied in Al-Zafaraniya area southeast of the capital Baghdad from October 2021 to April 2022. This is to evaluate some heavy elements (Cd, Co, Cu, Fe, Pb, and Mn) in the street, storm, and suspended dust. Four sampling sites were selected, and codes A, B, C, and D were given to represent the industrial activity sites, service workshops, business activity, and residential areas.
        The results showed that the concentration rates of elements (Cd, Co, Cu, Fe, Pb, Mn) in street dust samples were (1.15, 6.6, 60.15, 26770, 44.4, 6, 489.8). In storm dust (2, 10, 49.3, 54760, 24.3, 827.2) ppm, respectively, the results of suspended dust revealed that the general rates of element concentrations were (0.707, 3.546, 3.727, 83.204, 1.076, 8.706) μg/m3, respectively. The results also showed the frequency of the appearance of the same elements and different concentrations in the three types of dust. They also indicate that each other interacted in increasing and continuing to expose the city atmosphere to the air loaded with hazardous metals to the health of human society and the components of the city's ecosystem.
   It can also be concluded from the values and variations of the elements that there are several environmental factors, such as temperature, humidity, air currents, local and regional storm surges, and irregular distribution of vegetation, can be attributed to the main reason in the deference values of heavy elements and their presence in the street, storm and suspended dust
Fuzzy Transportation Model Technique to Determine the Minimum Total Cost Using a Novel Ranking Function
Authors: Mitlif Rasha J.
Published: January 2023

The transportation problem (TP) is employed in many different situations, such as scheduling, performance, spending, plant placement, inventory control, and employee scheduling. When all variables, including supply, demand, and unit transportation costs (TC), are precisely known, effective solutions to the transportation problem can be provided. However, understanding how to investigate the transportation problem in an uncertain environment is essential. Additionally, businesses and organizations should seek the most economical and environmentally friendly forms of transportation, considering the significance of environmental issues and strict environmental legislation. This research employs a novel ranking function to solve the transportation problem (TP), where fuzzy triangular numbers represent the fuzzy demand and supply (DAS). The fuzzy model is transformed and compressed to a crisp model (CM), and the results are compared using the northwest corner method and the least cost method. In addition, a numerical example of the fuzzy transportation model (FTM) is shown.
Wind energy potential estimation using neural network and SVR approaches
Authors: Salami Adekunlé Akim , Agbessi Pierre Akuété , Ajavon Ayité S. Akoda , Boureima Seibou
Published: January 2023

The distribution of wind speed and the optimal assessment of wind energy potential are very important factors when selecting a suitable site for a wind power plant. In wind farm design projects for the supply of electrical energy, designers use the Weibull distribution law to analyse the characteristics and variations of wind speed in order to evaluate the wind potential. In our study we used two approaches, namely, the Multilayer Perceptron (MLP) approach and the Support Vector Machine (SVR) approach to determine a distribution law of wind speeds and to optimally evaluate the wind potential. These two approaches were compared to two well-known numerical methods which are the Justus Empirical Method (EMJ) and the Maximum Likelihood Method (MLM). The results show that the neural network approach produces a better fit of the distribution curve with an Root Mean Square Error (RMSE) of 0.00005016 at Lomé, 0.000040289 at Cotonou site and a more interesting estimate of the wind potential. After that SVR show a better result too with an RMSE of 0.0095618 at the Lomé site and 0.0053549 at the Cotonou site.
Analisa Perbedaan Karakteristik Gerakan Ponton Pengapung Turbin Angin Lepas Pantai Pada Kondisi Terapung Bebas Dan Tertambat
Authors: Adnyani Luh Putri , Delivia Diana , Anggriani Indira
Published: January 2023

Salah satu energi alternatif terbarukan untuk area pantai adalah Pembangkit Listrik Tenaga Bayu (PLTB) dalam pengembangan ketenagalistrikan nasional, khususnya pada daerah yang memiliki potensi kecepatan angin di atas 4 meter per second (m/s). Inovasi teknologi untuk pondasi turbin terapung sangat diperlukan. Identifikasi turbin angin lepas pantai terapung masih memerlukan kajian-kajian spesifik dan mendalam, salah satunya terkait aspek tali tambat. Pada saat beroperasi, seringkali terjadi gerakan yang disebabkan oleh arus, gelombang, atau pun angin. Sistem tambat (mooring) diperlukan untuk menjaga ponton pondasi pembangkit listrik tenaga bayu lepas pantai supaya relatif tetap pada posisi yang dibutuhkan, namun, gaya yang terdapat pada mooring system perlu disesuaikan terhadap karakteristik ponton. Untuk itu, dilakukan penelitian dengan tujuan, mengetahui respon gerakan dari ponton pada saat kondisi terapung bebas dan pada saat tertambat. Dalam penelitian ini digunakan software simulasi MOSES dan Maxsurf. MOSES menjadi alat untuk menganalisis hidrostatik dari ponton dan Maxsurf  merupakan software untuk menganalisis desain ponton. Hasil yang didapatkan dari penelitian ini yaitu RAO heaving maksimum terjadi pada sudut gelombang 900 (beam seas) dengan nilai RAO sebesar 1.0934069 (m/m). RAO roll maksimum terjadi pada sudut gelombang 900 (beam seas) dengan nilai RAO sebesar 9.454861 (rad/rad). RAO pitch maksimum terjadi pada sudut gelombang 450 (quartering seas) dengan nilai RAO sebesar 0.9103925 (rad/rad).
Studi Experimen Mula: Analisa Kekasaran Permukaan Baja ST 37 Terhadap Variasi Kuat Arus Listrik
Authors: Wijayanti Ita , Hakim Rahman , Widodo Widodo
Published: January 2023

Proses pemesinan konvensional tidak mampu mengakomodasi pembuatan produk yang memiliki desain kompleks dan membutuhkan tingkat ketelitian yang tinggi. Teknologi electrical discharge machining  (EDM) merupakan proses pemesinan nonkonvensional yang mampu mengakomodasi kebutuhan-kebutuhan tersebut. Dengan EDM maka stres mekanis, chatter dan masalah getaran saat proses pemesinan dapat dikurangi. Penelitian ini bertujuan untuk mengetahui pengaruh variasi arus listrik yang berbeda  (3A, 6A dan 12A) saat pemesinan EDM terhadap nilai kekasaran (Ra) permukaan benda kerja (baja ST37). Elektroda yang digunakan yaitu berbahan baku tembaga. Hasil penelitian menunjukkan bahwa Ra terkecil (3,452 μm) diperoleh pada variasi arus 3A, sedang pada arus listrik 6A diperoleh Ra sebesar  4,789 μm dan Ra sebesar 7,313 μm pada arus listrik 12A. Semakin besar arus listrik yang digunakan selama pemesinan EDM maka semakin kasar permukaan benda kerja yang dihasilkan.

Kata Kunci: EDM, Nilai Kekasaran, Tembaga, ST37
Pengaruh Temperatur Tempering Terhadap Pembentukan Struktur Mikro Dan Kekerasan Baja Skd 11 Untuk Tool Steel
Authors: Saputra Ihsan , Ariyanto Nugroho Pratomo , Febri Mikie
Published: January 2023

SKD 11 steel is a tool steel which is often applied in the manufacturing industry, such as cutting, punching, stamping tools, shear blades, dies and others. And in it’s application, of course steel must have a hard structure, strong and touhgness affected due to external forces causing deformation or change in shape. To improve the quality, heat treatment is required on the steel by providing austenizing, quenching and tempering temperature variations 400 °C, 550 °C and 650 °C. Which purpose to determine the hardness and microstructure of the tempering variation results. The first step of cutting material SKD 11 steel, followed by austenizing process up to 1050 °C and then quenching process (fast cooling) with medium water and continue the process of tempering variation 400 °C, 550 °C and 650 °C. After the heat treatment was complete, take hardness test and view the microstructure of the SKD 11 steel. At temperatures tempering 400 °C showed the highest hardness value of 56.5 HRC, followed by tempering temperatures 550 °C at 52.9 HRC and the lowest occurred at temperature tempering 650 °C at 39.1 HRC. Microstructure formed pearlite and martensite. Then the higher temperature tempering then the declining value of steel hardness SKD 11.
A 3 Ft Gurindam Unmanned Surface Vehicle (USV) Stability Hullform Performance
Authors: Satoto Sapto Wiratno , Prasetyo Naufal Abdurrahman , Risdianto Anauta Lungiding Angga
Published: January 2023

3 ft Gurindam Unmanned Surface Vehicle (USV) showed unmaximal performance when it tested on the water. Uncalm movement, unmaximal speed indicated that something need to be checked and make sure to the USV so that it can maximize the performance. The USV is owned by Politeknik Negeri Batam, it’s 3 feet long, with single hull type, fuel engine motor and almost 8kg weight. This research aims is to get the stability analytical data so that the researche can collected some data which is will used to maximize the USV performance. From the research it can concluded that the USV has a maximal GZ 9,56cm at 48.2 deg in mimimal weight and maximal GZ 8.88cm at 48.2 deg at the maximall weight of the ship. From this result, it can concluded that the more weight added on the fuel tank (front position) the more unstable condition of the ship. Or, it’s need a fixed ballast on the AP area to get the more stability on the USV. Hopefully this reasearh followed by the owner and tested so that the performace of the ship will be maximal.
Pengaruh Weld Time Terhadap Kecacatan Produk Pada Proses Pengelasan Material Termoplastik ABS (Akrilonitril Butadiena Stiren) Menggunakan Mesin Ultrasonic Welding
Authors: Irawan Benny Haddli , Ryadi Fajar Putra , Rosbandrio Wowo
Published: January 2023

Masalah utama yang terjadi pada kebanyakan proses pengelasan ultrasonik pada material termoplastik ABS menggunakan mesin ultrasonic welding adalah pemilihan parameter yang tidak tepat. Hal ini akan menyebabkan berbagai macam kecacatan pada produk seperti gap, dent, offside, dan lain-lain. Salah satu parameter yang sangat berpengaruh pada hasil pengelasan ialah parameter weld time. Hal tersebut dikarenakan parameter ini memiliki tingkat sensitivitas yang cukup tinggi terhadap hasil pengelasan. Oleh karena itu, tujuan dari penelitian ini adalah untuk menguji pengaruh weld time terhadap produk yang dihasilkan dengan cara melakukan pengelasan pada 5 parameter berbeda mulai dari yang paling minimum yaitu 0.190s hingga parameter maksimum yaitu 0.350s dengan menggunakan 15 sampel yang telah tersedia. Selanjutnya pada setiap parameter dilakukan pengujian sebanyak 3 kali menggunakan 3 sampel produk yang berbeda untuk mendapatkan hasil yang maksimal. Untuk mengetahui pengaruh parameter weld time maka digunakan metode inspeksi. Metode ini bertujuan untuk melakukan pengujian kebocoran udara menggunakan mesin air leakage tester agar dapat memastikan hasil pengelasan pada produk tidak terdapat kebocoran. Selain itu digunakan metode lainnya dengan cara menginspeksi secara visual menggunakan alat   luxo lamp. Alat ini berupa kaca pembesar yang diterangi lampu sehingga kita dapat dengan mudah memastikan kecacatan apa yang terjadi pada produk setelah pengelasan. Hasil data dari penelitian ini diharapkan dapat menginformasikan pengaruh yang signifikan dari parameter weld time terhadap kecacatan yang terjadi pada produk sehingga dapat membantu perusahaan mengatasi masalah yang terjadi.
Sistem Pendukung Keputusan untuk Merekomendasikan Pilihan Laptop Menggunakan Metode Weighted Product
Authors: Putri Fitra Fatimah , Mulia Aldi , Arifitama Budi
Published: January 2023

Di zaman modern dan serba teknologi ini, laptop telah menjadi kebutuhan primer atau kebutuhan yang utama untuk semua orang. Dikarenakan laptop dapat membantu menyelesaikan beberapa pekerjaan lebih cepat. Peningkatan produksi pasar laptop dengan bermacam-macam spesifikasi dan merek mungkin akan membingungkan bagi pengguna yang baru ingin membeli laptop. Penelitian ini mengusulkan sebuah sistem pendukung keputusan untuk menentukan pilihan laptop mana yang tepat sesuai kebutuhan pembeli. Metode Weighted Product menghasilkan keputusan dengan melakukan perbandingan antar alternatif berdasarkan fungsi preferensi dan bobot yang berbeda-beda dari setiap kriteria yang dimana hasil keputusan ditentukan dari hasil pemeringkatan. Kriteria yang digunakan sebagai penilaian untuk merekomendasikan pilihan laptop yaitu processor (C1) , RAM (C2) , storage (C3) , dan harga (C4). Dari sistem yang dikembangkan ini akan menghasilkan list rangking TOP 10 berdasarkan bobot yang diberikan atau diinput oleh pembeli. Dengan adanya sistem ini dapat membantu pembeli atau pengguna baru dalam menentukan pilihan laptop yang terbaik untuk digunakan sesuai kebutuhannya.
Perbandingan Hasil Koordinat Kerangka Pemetaan Menggunakan Metode Bowditch Poligon Tertutup Dengan Metode Adjustment Triangulated Quadrilateral
Authors: Rassarandi Farouki Dinda , Gustin Oktavianto , Putra Putra
Published: January 2023

Kerangka dasar (kontrol) pemetaan dapat dibagi menjadi 2 (dua) macam, yaitu kerangka horizontal (planimetris) dan kerangka vertikal (tinggi). Kerangka peta yang umum dipakai dalam bidang geodesi dapat dibuat dengan beberapa cara, beberapa diantaranya adalah metode triangulasi dan poligon. Untuk memperoleh nilai koordinat yang baik/teliti pada hasil ukuran dengan cara triangulasi dapat dilakukan dengan menggunakan metode hitung perataan least squares triangulation adjustment, sedangkan untuk poligon menggunakan metode Bowditch dalam pemecahan solusinya. Metode hitung perataan/adjustment yang dikenal ada tiga yaitu metode parameter, kondisi dan kombinasi. Perataan kuadrat terkecil metode triangulasi (least squares triangulation adjustment) dapat menggunakan persamaan kondisi atau persamaan pengukuran baik itu pengukuran azimuth ataupun sudut. Pada prosedurnya melibatkan perataan parameter, dimana parameter tersebut adalah koordinat pada suatu bidang datar. Penelitian ini mengkaji tentang bagaimana perbandingan hasil koordinat kerangka pemetaan Poligon tertutup menggunakan metode Bowditch dengan metode Adjustment Triangulated Quadrilateral. Hasil koordinat dari perhitungan dengan menggunakan metode Bowditch memberikan nilai yang lebih baik daripada metode Adjustment, dimana standar deviasi ukuran koordinat dengan menggunakan metode ini berkisar pada interval konfidensial antara 0,400954085 ft minimum dan 1,020967284 ft maksimum dalam selang kepercayaan 90%, sedangkan metode Adjustment berkisar antara 1,112780078 ft minimum dan 2,833521575 ft maksimum.
Penanganan dan Analisa Kegagalan Pada Bleed Air Leak Detection System Pesawat Airbus A330-300 di Hanggar 3 PT.GMF AEROASIA
Authors: Prakoso Agung , Kurniawan Riski , Mauluddin Farchan
Published: January 2023

Sistem bleed air leak detection pada pesawat digunakan untuk mendeteksi adanya kebocoran pada bleed air duct. Sistem ini dapat mendeteksi over heat temperature di luar duct apabila terdapat kebocoran pada sekitar duct. Bleed air leak detection dilengkapi dengan sensing element yang berfungsi untuk mendeteksi kenaikan suhu apabila terjadi kebocoran disekitar bleed air duct. Sensing element ini dipasang pada engine pylon, wing, dan fuselage. Kenaikan suhu yang terdeteksi oleh sensing element dapat dimonitor di bleed monitoring computer (BMC) dan kemudian akan diteruskan ke engine bleed switch di cockpit. Troubleshooting Manual (TSM) Task 36-22-00-810-911-A digunakan untuk menyelesaikan permasalahan sistem bleed air leak detection. Metode fault tree analysis juga digunakan untuk mendapatkan kemungkinan-kemungkinan penyebab kegagalan pada sistem bleed air leak detection. Pada penelitian ini ditemukan kerusakan pada sensing element pada zone 71 HF. Sensing element tersebut telah mencapai usia 24 tahun 8 bulan dari yang ditetapkan oleh manufaktur yaitu 25 tahun, sehingga perlu dilakukan pergantian dengan sensing element yang baru. Berdasarkan hasil fault tree analysis di dapatkan beberapa kemungkinan penyebab kegagalan sistem bleed air leak detection yaitu electorstatic, short circuit, lost continuity, connector fault, control logic fault, thermistor disconnected, degradasi prestasi, dislokasi komponen, dan corrosion.
Analisis Proses Penentuan Kelayakan dan Pengamanan Penggunaan Overhead Crane Menggunakan Metode Pemeriksaan dan Pengujian Teknis K3
Authors: Fyona Annisa , Nababan Miduk Parulian , Baharudin Budi , Hakim Rahman
Published: January 2023

Dalam dunia industri, banyak ditemui peralatan ataupun mesin yang digunakan untuk mempermudah proses pekerjaan manusia. Salah satu jenis alat yang banyak digunakan adalah pesawat angkat. Pesawat angkat adalah pesawat atau peralatan yang dibuat, dan dipasang untuk mengangkat, menurunkan, mengatur posisi dan menahan benda kerja atau muatan. Salah satu contoh dari pesawat angkat adalah overhead crane. Kebanyakan overhead crane terpasang di bagian atap bangunan (indoor) namun tidak menutup kemungkinan juga dapat digunakan di luar ruangan (outdoor). Seiring dengan waktu penggunaan overhead crane, yang semakin lama pasti akan mengalami penurunan kualitas baik dari segi komponen maupun fungsinya, maka diperlukan pengendalian sistem manajemen kelayakan dan izin pemakaian. Sesuai dengan peraturan Kementerian Tenaga Kerja yakni Permenaker Nomor 8 Tahun 2020 tentang K3 pesawat angkat dan pesawat angkut, dimana setiap pesawat angkat dan pesawat angkut sebelum dioperasikan harus diperiksa dan diuji terlebih dahulu, serta dilaksanakan pengujian berkala sesuai dengan standar uji yang telah ditentukan. Penelitian ini menggunakan metode analisa kualitatif deskriptif, yaitu mendapatkan data dengan observasi langsung pada alat. Setelah dilakukan pemeriksaan dan pengujian, overhead crane dinyatakan berfungsi dengan baik dan memenuhi syarat teknis K3 sehingga overhead crane tersebut akan mendapatkan surat keterangan dan izin pemakaian.
Pengujian Kekerasan dan Struktur Mikro Sambungan Low-Carbon Steel dan Austenitic Stainless Steel
Authors: Ariyanto Nugroho Pratomo , Siregar Andy Parulian , Widiastuti Hanifah , Rossbandrio Wowo , Fajrin Aulia , Nugroho Cahyo Budi
Published: January 2023

Pengelasan antara stainless steel dan carbon steel rentan terhadap tegangan sisa karena perbedaan koefisien muai. Properti tahan karat dan properti mekanik sambungan juga dapat terpengaruh oleh sensitisasi stainless steel yang menghasilkan presipitasi chromium carbide dan difusi karbon pada daerah heat-affected zone carbon steel. Pengaruh post-weld heat treatment pada sambungan stainless steel 316 dan AISI 1018 dengan filler metal 309L terhadap kekerasan dan struktur mikro menjadi tujuan penelitian ini. Nilai kekerasan sambungan mengalami penurunan seiring dengan peningkatan temperatur post-weld heat treatment pada rentang 400-700℃. Struktur mikro heat affected zone juga berubah dengan dominasi butiran ferrite yang mengalami grain growth.
The Effect of Alkaline Treatment On the Schizostachyum Grande Fibre for Textile Applications
Authors:   Universiti Tun Hussein Onn Malaysia, Nor Anuwar Anis Amirah , Abdul  Rashid Azrin Hani ,   Universiti Tun Hussein Onn Malaysia, Jikan Suzi Salwah ,   Universiti Tun Hussein Onn Malaysia, Roslan Mohd  Nazrul ,   Universiti Tun Hussein Onn Malaysia, Mohd  Tahir Abdussalam  Al-Hakimi ,   Universiti Tun Hussein Onn Malaysia, Zolkifflee Nurul  Husna ,   Universiti Tun Hussein Onn Malaysia, Mohd Razal Fathee Aizat ,   Hangterrabamboo Sdn.Bhd.
Published: January 2023

Among commercial Malaysian bamboo species, Schizostachyum Grandespecies are characterised by their longest internode and thinner culm wall, which allow more attainable fibres during the extraction process. However, the chemical composition of bamboo fibres is higher than any other natural fibre, resulting in coarse and stiff fibres that require alkaline treatment to develop fine fibres. This paper presents the effect of alkaline treatment concentration and soaking time on the physical properties and tensile properties of bamboo fibres. The bamboo fibre was treated with an alkaline solution at 4 and 8 wt.% concentration for 6, 12, 18, and 24 hours. The diameter and fineness of bamboo fibre wereevaluated to determine if alkaline concentration and soaking time affected the fibres. Results showed that the treated fibre diameter decreased by 23.2% to 66.51μm at 8 wt.% alkaline concentrationsfor 12 hours of soaking timecompared to the untreated bamboo fibre of 86.56μm.The fibre fineness of 11.96 tex was produced at 24 hours of soaking time and8 wt.% alkaline concentrations. Alkaline treatment was effective in causing a decrease in fibre diameter and produced the finest fibre. Thinner and finer fibre was produced as alkaline concentration and soaking time increased.The highest tensile strength of treated bamboo fibre was 1.42 GPa at a 4 wt% alkaline concentration and6 hours of soaking time. Elongation at break and tenacity improved remarkably when the alkaline concentration and soaking time were increased, which were 3.11% and 45 cN/Tex, respectively, at 8 wt% alkaline concentrationsfor 12 hours of soaking time. Moreover, the 8 wt% alkaline concentration was the best for bamboo fibre because the treatment was effective in causing a decrease in fibre diameter and produced the finest fibre. The elongation at break and tenacity of fibres were also improved at 12 hours of soaking time. The tensile strength and modulus of fibre were reduced at longer soaking times at high alkaline concentrations of more than 18 hours.
Acoustic Properties of Autoclaved Aerated Concrete (AAC) Based On Gypsum-Ceramic Waste (GCW)
Authors:   Universitas Islam Negeri Imam Bonjol Padang, Yusrianto Efil , Marsi Noraini ,   Universiti Tun Hussein Onn Malaysia, Kassim Noraniah ,   Universiti Tun Hussein Onn Malaysia, Abdul Manaf Izzati ,   Universiti Tun Hussein Onn Malaysia, Shariff HafizuddinHakim ,   Kim Hoe Thye Industries Sdn. Bhd.
Published: January 2023

Noise pollution and municipal solid waste (MSW) are two ongoing issues for inhabitants of urban due to the growth development. MSW such as gypsum and ceramic waste(GCW)needs to be managed properly to solve environment and acoustic issues. Autoclaved aerated concrete (AAC) is one of the lightweight concrete family and green building material which raw material can be partially replaced by using MSW. It was interesting to study the compressive strength and acoustic properties of AAC based on GCW. The objective of this work was to determine the performance of strength and the acoustic properties of AAC based on GCW. The AAC with different composition of GCW (5%, 10%, and 15%wt) has been prepared according to ASTM C1693-09. The compressive strength and acoustic properties of sample have been carried out according to ASTM D695 and ASTM E1050. The GCW succeeded in enhancing the compressive strength of AAC samples in the range of 23.43% to 44.32%. The maximum value of compressive strength was 7.22MPa for 15% wt of GCW. The sound absorption coefficient of sample was around 0.17 to 0.89 at high frequency(1000 –2000Hz). The best sound absorption coefficient was showed by AAC with 10% wt of GCW i.e 0.89 at frequency 1200Hz. All AAC-GCW samples have class C and B at a high frequency in range 1000 –1500Hz.Our results indicated the GCW canbeusedas an alternative natural source for partial fine aggregate replacement on AAC andimproved the compressive strength and acoustic properties of AACsamples.Generally, AAC-GCW samples have higher sound absorbance coefficient compare toprevious studies and suitable for wall applicationsuch as partition walls, party walls, and especially for sound insulation material.
Impact Behaviour of Laminated Bamboo, E-Glass and Hybrid Bamboo/E-Glass Fibre Composites
Authors:   Universiti Pertahanan Nasional Malaysia (UPNM), Suhaimi Adam Arif , Ali Aidy ,   Universiti Pertahanan Nasional Malaysia (UPNM), Rassiah Kannan ,   Politeknik Melaka Malaysia, K.Z Ku Ahmad ,   Universiti Pertahanan Nasional Malaysia (UPNM)
Published: January 2023

Natural fibres are currently used as a mutually reinforcing fibre foundation. One of their prospects, particularly that which is said to be good in mechanical reinforcement, is bamboo fiber.This study focuses on developing a high-quality bamboo that can withstand high load and high impact application, that utilize and promote green technology and local crops production ofbamboo in Malaysia.The work scope was focusing onthe impact performance of bamboo fiber as natural fiber, E Glass fiber as synthetic fibers, and combination of both bamboos with E Glass Fiber as hybrid composites.The developedlaminated hybrid bamboo was hit by a hard object named impactorin the drop impact testing procedures. The analysisgives the sound of the impact properties thatcan be absorb with optimal load before the specimen penetrated or failures. Configuration of 6,12,18 layers of woven bamboo and 6,12,18 layers of woven E-Glass, in order of thicknesses 9 mm, 18 mm, 22 mm and 4 mm, 7 mm and 10 mm, respectively were fabricated by hand lay-up. The thickness of each and individual strips of woven bamboo and E-Glass used in the range of 1.5-2.5 mm thicknesses. The results showed that the impact performance of the hybrid bamboo/E-Glass had outperformedthe non-hybrid bamboo/E-Glass.The developed hybrid bamboo composites show highly potential use for ballistic application in replacing metal armor.
Probability Liquefaction On Silty Sand Layer On Central Jakarta
Authors:   University of Indonesia, Maha Agung Putera Agung , Ahmad Mustaffa Anjang ,   Universiti Tun Hussein Onn Malaysia, Rouf Hasan Muhammad Fathur ,   University of Indonesia
Published: January 2023

Indonesia has a strong earthquake risk. The effects of saturated silty sand liquefaction during earthquakes can be very damaging. Liquefaction is the threats to the safety of structures, and the evaluation of liquefaction potential is essential in locations with silty sand layers. Research was performed at BPJS Branch Office building project in CentralJakarta with 7 floors when conducted the substructure or deep foundation design. This research uses cone penetration test (CPT) data to evaluate the potential and probability of liquefaction. At the same time, this research also predicts the bearing capacity (Qu) of single pile embedded on silty sand layer at conditions of Non-Liquefaction (NL) and Liquefaction (L) due to an earthquake. The research results showed that silty sand layers were classified as the susceptible layers to the liquefaction potential after plotted of CPT data into the graphic from Robertson & Campanella method [1] and signed by zone A. However, bearing capacity (Qu) when condition of NL and L was only different around 10 to 11%, it can be considered that the single pile remains stable during occurrence the liquefaction and capable to support the upper structure system. This assumption is also strengthened by the analysis result of probability liquefaction (P[L]) for sand and silty sand layers, the average of (P[L]) based on the maximum earthquake acceleration (PGA) T = 50 years exists in the range < 5 % to 10 % and it can be stated that [P(L)] is very low to low [2] and it can be concluded that the sand and or silty sand layers at study area is hard to category as a liquefiable layer.
Digital skills and ethical knowledge of teachers with TPACK in higher education
Authors: Gómez-Trigueros Isabel María
Published: January 2023

This paper analyzes the professional ethical knowledge of teachers in the use of technologies by teachers in training. Based on the disciplinary pedagogical technological knowledge (TPACK) model, it is intended to measure the correct inclusion of technologies in the classroom. For this, a descriptive exploratory methodological design study was carried out. The instruments used have been the Likert scale questionnaire and the personal interview, organized into four dimensions in which the self-perception of professional ethical knowledge, ethical knowledge of technology, pedagogical technological ethical knowledge and disciplinary technological ethical knowledge of the future teachers. The questionnaire has been applied to a sample of 1.051 trainee teachers from a European university in the context of COVID-19 and 822 students participated in the interview.
 The results show the scarce training in professional ethical knowledge of teachers in training and the importance of addressing this knowledge in the 21st century, a post-pandemic context. Another of the conclusions is the need to include the ethical component in the TPACK model to achieve a correct and ethical use of digital resources in the classroom.
Challenges and Opportunities in Space Medicine, Space Flight, and Holoportation
Authors: Schmid III Maj. Gen. (Dr.) Josef
Published: January 2023

Dr. Schmid will provide an overview of the NASA space medicine operations current spaceflight challenges and opportunities in the context of the environments of care including air, space and terrestrially in our domestic and international health systems.  He will provide a worldwind tour of Space Medicine origins, space telemedicine, medical training required, extreme environmenta of care, NASA international and off the planet medical operations, mission planning, space physiology, longitudinal surveillance of astronaut health, current and future missions, commercial space flight and new vehicles.  Dr. Schmid will introduce the Holoportation Project, the first Holographic Transportation of humans to space, new technologies and opportunities for collaboration and problem solving with NASA.
Insiders Perspectives On Hybrid Care
Authors: McGrow, DNP, MS, RN, PMP Kathleen , Patel Alpesh
Published: January 2023

Hear perspectives from tech giant, Microsoft, and startup Ravkoo Health executives, about what is currently top of mind for them, their business, and what they are being asked to deliver for clients and consumers. The new "hybrid world" discussion includes topics such as:

What the newest tools are being used at health organizations

What's the most mature use case in virtual care

Where is the digital health/virtual health “puck” headed over the next few years
The Role Blockchain Technology Can Play in Solving Today’s Telemedicine Limitations
Authors: Goel Pradeep
Published: January 2023

Data security, regulatory compliance, cost of IT infrastructure, cross border consultations, and interoperability are just some of the challenges telemedicine faces today. Find out how blockchain technology can help solve many of the pressing challenges, telemedicine faces today.
Developing Evidence for Telehealth Effectiveness
Authors: Campion, MD Francis X.
Published: January 2023

This keynote offers a definition for telehealth, and discusses dimensions of telehealth effectiveness, clinical outcomes, patient and provider experience, cost utilization, and  equity. Three use cases are presented to help illustrate findings.
Leveraging Web 3.0 Architecture for Healthcare 4.0
Authors: Vasiliu-Feltes Dr. Ingrid
Published: January 2023

The global digital transformation has been exponentially accelerated by the latest pandemic and we have a unique opportunity to redefine, redesign and reconfigure global wellness, global health and global health-care delivery systems. Telehealth and telemedicine play a key role in this new ecosystem and can act as a gateway to achieving Healthcare 4.0. The dual power of increased telehealth adoption, and transitioning towards a decentralized next generation internet (web 3.0) can act as a catalyst to enhance our efforts toward attainment of a more equitable healthcare ecosystem.
Pandemic Push: Accelerating Connected Care
Authors: Houghton, MD David
Published: January 2023

TBD
PROSEDUR RAPAT DI BAGIAN RAPAT DAN PERUNDANG-UNDANGAN SEKERTARIAT DPRD KOTA SURABAYA
Authors: Rahmawati Anissa
Published: January 2023

Meetings are a very important means of communication in an organization because the meeting serves as a guide in discussing an issue to achieve goals with an agreement in taking or making a decision. The purpose of this observation is to find out the procedures for meetings in the meeting section and the Legislation of the Surabaya City DPRD secretariat, while the benefits of this observation are to know and expand knowledge and insight into the procedures for holding council member meetings at the Surabaya City DPRD secretariat and as evaluation material in other sections. the part that is directly and actively involved in organizing board member meetings.

Keywords: Meeting, Procedure, DPRD

Abstrak

Rapat merupakan sebuah sarana komunikasi yang sangat penting dalam suatu organisasi karena rapat berfungsi sebagai pedoman dalam pembahasan mengenai suatu persoalan untuk mencapai tujuan dengan kata sepakat dalam mengambil atau mengambil suatu keputusan. Tujuan pengamatan ini adalah untuk mengetahui prosedur rapat di bagian rapat dan Perundang-Undangan sekertariat DPRD Kota Surabaya, sedangkan manfaat dari pengamatan ini adalah mengetahui dan memperluas ilmu serta wawasan mengenai prosedur penyelenggaraan rapat anggota dewan di sekretariat DPRD Kota Surabaya dan sebagai bahan evaluasi pada bagian-bagian yang terlibat langsung serta aktif melakukan penyelenggaraan rapat anggota dewan.

Kata kunci: Rapat, Prosedur, DPRD
Perancangan Cergam Tadashi Maeda sebagai Samurai Jepang Pembela Kemerdekaan Indonesia
Authors: Algifan Muhammad , Apriani Hamidah , Akbar Taufiq
Published: January 2023

Tujuan penelitian untuk merancang buku cerita bergambar Laksamana Tadashi Maeda yang berjudul Samurai Jepang untuk Indonesia. Metode penelitian yang digunakan adalah metode kualitatif dengan teknik pengumpulan data yaitu melalui observasi secara langsung dengan melakukan wawancara kepada edukator Museum Naskah Proklamasi dan observasi tidak langsung dengan cara studi literatur yaitu mengambil bacaan-bacaan dari jurnal atau artikel ilmiah yang ada di internet dan kemudian dianalisis berdasarkan pemikiran dan pemahaman. Target dari buku cerita bergambar ini untuk memberi pengetahuan sejarah kemerdekaan Republik Indonesia kepada kalangan pelajar yang duduk di bangku SMP dan SMA agar dapat mengetahui jasa para pahlawan Republik Indonesia dan mencontoh keteladanannya. Gaya ilustrasi yang digunakan adalah gambar vektor dengan Gaya Flat Design dengan membuat sebuah karakter yang sangat sederhana. Kelebihan dari media buku cerita bergambar adalah untuk menjaga sejarah yang telah tercatat bahwa Laksamana Maeda turut serta dalam perjuangan kemerdekaan bangsa Indonesia dan bertujuan menjadi sumber yang dapat dijadikan referensi agar setiap orang tertarik untuk membacanya, serta mengetahui perjuangan yang dilakukan oleh Laksamana muda Tadashi Maeda.