scholarly journals PENGEMBANGAN E-MODUL (MODEL UNIT LESSON) DI DAERAH MINIM INTERNET BERBASIS KEMAMPUAN BERPIKIR HIPOTETIKAL DEDUKTIF

2021 ◽  
Vol 7 (2) ◽  
pp. 387
Author(s):  
Jayati Jayati ◽  
Suparwoto Suparwoto ◽  
Moh. Toifur
Keyword(s):  
Model Unit

Pembelajaran jarak jauh dengan menggunakan daring tidak sepenuhnya dapat dilakukan pada wilayah minim internet, dan sistem penugasan belum dapat memberikan hasil pemahaman dan hasil belajar siswa meningkat. Tujuan penelitian ini adalah mengembangkan e-modul pada daerah minim internet dengan topik hukum Newton tentang gravitasi. Metode yang dilakukan adalah melakukan validasi hasil pengembangan modul dengan empat validator yang terdiri dari dosen dan guru. Angket validasi lmodul berupa validasi materi dan validasi produk. Responden yang diujikan sebanyak 23 orang. Hasil penelitian menunjukkan bahwa validasi materi memiliki nilai reliabilitas sebesar 0,8 dan valiadi produk memiliki nilai reliabilitas sebesar 0,64. Hasil analisis keefektifan e-modul yang diberikan kepada peserta didik diperoleh skor rata- rata 3,5. Skor ini masuk dalam kategori efektif.

scholarly journals Karakteristik Morfometri Dan Hidrologi Daerah Aliran Sungai Way Apu Kabupaten Buru

Agrologia ◽  
2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Rafael M. Osok ◽  
Silwanus M. Talakua ◽  
Alfredo Manusama ◽  
Pieter J. Kunu
Keyword(s):  
Type Iii ◽  
Model Unit ◽  
Pearson Type ◽  
Log Normal

ABSTRAKKarakteristik morfometri penting untuk memahami proses hidrologis  pada suatu DAS. Tujuan penelitian ini (1) mengkaji karakteristik morfometri DAS Way Apu, (2) menganalisis debit banjir rencana dan hidrograf satuan untuk mendukung perencanaan pengembangan bangunan air di DAS Way Apu. Analisis data meliputi karakteristik lahan morfometri DAS, dan hidrologi DAS. Distribusi frekuensi hujan dihitung dengan metode Log-Pearson Type III, Gumbel, Normal, Log-Normal. Hujan dan debit rencana dihitung dengan kala ulang 2, 5, 10, 25, 50, dan 100 tahun untuk masing-masing metode. Debit banjir rencana dihitung dengan metode Rasional, sedangkan model unit hidrograf DAS Way Apu dihitung dengan  metode Nakayasu. Hasil penelitian menunjukkan bahwa bentuk DAS kategori lonjong atau memanjang, dengan 4 orde sungai, pola aliran dendritik, dan kemiringan sungai kecil. Curah hujan rencana untuk periode ulang 2, 5, 10, 20, 25, 50 dan 100 tahun berkisar 37,59 – 185,14 mm (Log Pearson Type  III), 41,32 – 180,28 mm (Gumbel), 47,68 – 139,98 mm (Normal), dan 36,82 – 203,66 mm (Log-Normal). Hasil uji Smornov-Kolmogorof menunjukkan bahwa metode Log-Pearson Type III, Gumbel, dan Log-Normal dapat digunakan untuk perhitungan debit banjir rencana. Data debit banjir rencana Gumbel dapat digunakan untuk umur bangunan air 25 tahun, sedangkan bila bangunan airnya dibangun untuk umur 100 tahun, Log-Normal lebih cocok. Berdasarkan Hidrograf Satuan Sintetik Nakayasu, kapasitas tampung DAS Way Apu adalah 21,37 m3/dtk, dan kondisi ini tidak mampu menampung debit banjir yang terjadi.Kaca Kunci: Karakteristik morfometri DAS, debit banjir rencana, DAS Way Apu

scholarly journals Formulation of scale transformation in a stochastic data assimilation framework

2017 ◽  
Vol 24 (2) ◽  
pp. 279-291 ◽  
Author(s):  
Feng Liu ◽  
Xin Li
Keyword(s):  
Data Assimilation ◽  
Spatial Scale ◽  
Measure Theory ◽  
Stochastic Calculus ◽  
Scale Transformation ◽  
Earth Observations ◽  
Model Unit ◽  
Stochastic Data ◽  
Definition Of ◽  
New Formulation

Abstract. Understanding the errors caused by spatial-scale transformation in Earth observations and simulations requires a rigorous definition of scale. These errors are also an important component of representativeness errors in data assimilation. Several relevant studies have been conducted, but the theory of the scale associated with representativeness errors is still not well developed. We addressed these problems by reformulating the data assimilation framework using measure theory and stochastic calculus. First, measure theory is used to propose that the spatial scale is a Lebesgue measure with respect to the observation footprint or model unit, and the Lebesgue integration by substitution is used to describe the scale transformation. Second, a scale-dependent geophysical variable is defined to consider the heterogeneities and dynamic processes. Finally, the structures of the scale-dependent errors are studied in the Bayesian framework of data assimilation based on stochastic calculus. All the results were presented on the condition that the scale is one-dimensional, and the variations in these errors depend on the differences between scales. This new formulation provides a more general framework to understand the representativeness error in a non-linear and stochastic sense and is a promising way to address the spatial-scale issue.

A Photoactivated Artificial Muscle Model Unit: Reversible, Photoinduced Sliding of Nanosheets

2011 ◽  
Vol 133 (43) ◽  
pp. 17130-17133 ◽  
Author(s):  
Yu Nabetani ◽  
Hazuki Takamura ◽  
Yuika Hayasaka ◽  
Tetsuya Shimada ◽  
Shinsuke Takagi ◽  
...  
Keyword(s):  
Artificial Muscle ◽  
Muscle Model ◽  
Model Unit

scholarly journals Applied Mathematical Approach for Decision-Making in Building Plan Design

2018 ◽  
Vol 3 (9) ◽  
pp. 39
Author(s):  
Grit Ngowtanasuwan
Keyword(s):  
Mathematical Model ◽  
Mathematical Models ◽  
Publishing House ◽  
Unit Cost ◽  
Construction Cost ◽  
Model Unit ◽  
International Publishing ◽  
Plan Design ◽  
The Mathematical Model

This article presents a method for solving decision in building plan design by using a mathematical model (nonlinear programming). First objective is to formulate mathematical models for analysis in dividing rooms and dimensions in a building plan. Secondly, to calculate the dimensions and room sizes which have minimum construction cost. A case study of a condominium building plan was analyzed in this research. The results found application of the mathematical model was applicable. The mathematical models were formulated, the minimum construction cost was ฿723,000 (US$24,100) and usable area in the condominium was 67.5 m2 and followed the assigned design constraints.Keywords: Building plan design; Mathematical model; Unit cost;eISSN 2398-4295 © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI:

scholarly journals The Strategy for Constructing the Structure: Pt-O-Ce3+ Applied in Efficient NOx Removal

2021 ◽  
Vol 2 ◽  
Author(s):  
Guoquan Liu ◽  
Zhifei Hao ◽  
Xueyue Mi ◽  
Nan Ma ◽  
He Zhang ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
High Performance ◽  
Catalytic Performance ◽  
Supported Metal Catalysts ◽  
Excellent Thermal Stability ◽  
Future Studies ◽  
Supported Platinum ◽  
Model Unit ◽  
Significant Difference ◽  
Wide Operating

Exploring a unique structure with superior catalytic performance has remained a severe challenge in many important catalytic reactions. Here, we reported a phenomenon that CeO2-based catalysts loaded with different Pt precursors showed a significant difference in the performance of the reduction of NO with H2. The supported platinum nitrate [PtCe(N)] exhibited a superior low-temperature catalytic performance than the supported chloroplatinic acid [PtCe(C)]. In a wide operating temperature (125–200°C), more than 80% NOx conversion was achieved over PtCe(N) as well as excellent thermal stability. Various characterizations were used to study the microstructure and chemical electronic states. Results showed the introduction of a low valence state of Pt species into the CeO2 resulted in the rearrangement of charges on the surface of CeO2, accompanied by increasing contents of oxygen vacancies and Ce3+ sites. Furthermore, the X-ray photoelectron spectroscopy (XPS) and Raman spectra confirmed that the divalent Pt atom could substitute Ce atom to form the Pt-O-Ce3+ structure, which was the base unit in the high-performance PtCe(N) catalyst. The tunable catalytic system of the Pt-O-Ce3+ structure provides a strategy for the design of supported metal catalysts and may as a model unit for future studies of many other reactions.

scholarly journals Efficiency of Arabica Coffee Processing Unit in Ngada Regency

Agro Ekonomi ◽  
2019 ◽  
Vol 30 (1) ◽  
Author(s):  
Kornelia Ngina Djawa ◽  
Irham Irham ◽  
Lestari Rahayu Waluyati
Keyword(s):  
Rural Areas ◽  
Small Scale ◽  
Processing Unit ◽  
Data Envelopment ◽  
Analysis Method ◽  
Improvement Strategy ◽  
Maximum Benefit ◽  
Model Unit ◽  
Efficient Processing ◽  
Ccr Model

Village-based processing unit is a small-scale agricultural processing industry based in rural areas. It is a breakthrough program in accelerating the growth of farmers' income and increased employment. The product processing unit has a goal of obtaining maximum benefit.  In order to achieve maximum profit and continuous processing of coffee, the processing unit should pay attention to the efficiency aspect. The purpose of this research is to know the efficiency of the coffee processing unit in Ngada regency and the improvement strategy for processing unit of an inefficient result to be efficient. The analysis method used is Data Envelopment Analysis (DEA) of Charnes, Cooper, and Rhodes (CCR) model and Banker, Charnes, and Cooper (BCC) model with output orientation. The research sample is the management of the coffee processing unit, with the total of 40 respondents. The result of this research shows that the efficiency measurement using DEA method of the CCR model produces coffee processing unit in Ngada regency which efficiently reaches 9 units or 22.5% while 31 or 77.5% other processing units are inefficient. On the BCC model unit, the efficient coffee processing is 20 units or 50%, while the other 20 units or 50% are in the inefficient state. The inefficient processing unit is because the available input is not used optimally. Inefficient processing units can be achieved efficiently by referring to efficient processing units within their peer groups by adjusting the excessive amount of input usage

scholarly journals Clustering Directions Based on the Estimation of a Mixture of Von Mises-Fisher Distributions

2017 ◽  
Vol 08 (1) ◽  
pp. 39-52 ◽  
Author(s):  
Adelaide Figueiredo
Keyword(s):  
Statistical Analysis ◽  
Simulation Study ◽  
Directional Data ◽  
Fisher Distribution ◽  
Spherical Data ◽  
Model Unit ◽  
Type Algorithm ◽  
Estimation Maximization Algorithm ◽  
Von Mises ◽  
Unit Vectors

Background:In the statistical analysis of directional data, the von Mises-Fisher distribution plays an important role to model unit vectors. The estimation of the parameters of a mixture of von Mises-Fisher distributions can be done through the Estimation-Maximization algorithm.Objective:In this paper we propose a dynamic clusters type algorithm based on the estimation of the parameters of a mixture of von Mises-Fisher distributions for clustering directions, and we compare this algorithm with the Estimation-Maximization algorithm. We also define the between-groups and within-groups variability measures to compare the solutions obtained with the algorithms through these measures.Results:The comparison of the clusters obtained with both algorithms is provided for a simulation study based on samples generated from a mixture of two Fisher distributions and for an illustrative example with spherical data.

User-Friendly Simulator for Open Modeling by Hierarchically Management

2013 ◽  
Vol 17 (6) ◽  
pp. 862-871
Author(s):  
Masato Ikai ◽  
◽  
Naoaki Itakura
Keyword(s):  
Binary Relation ◽  
Model Unit ◽  
Complicated Model ◽  
Simulation Results ◽  
User Friendly ◽  
Approximate Simulation

We propose a user-friendly simulator in which the structure and modeling are open to any user. The proposed simulator can easily build a complicated model by using a hierarchicalmanagement system. To realize model constructions that are easier for users to understand, we introduce a cascaded binary relation function CBRF as a model unit. An editor that efficiently uses the structure is being developed. Application of this simulator to various targets allows approximate simulation results to be quickly and easily obtained.

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