scholarly journals BLENDING STUDY FOR SRR SALT DISPOSITION INTEGRATION: TANK 50H SCALE-MODELING AND COMPUTER-MODELING FOR BLENDING PUMP DESIGN, PHASE 2

2011 ◽  
Author(s):  
R. Leishear ◽  
M. Poirier ◽  
M. Fowley
Keyword(s):  
Computer Modeling ◽  
Design Phase ◽  
Phase 2 ◽  
Pump Design ◽  
Scale Modeling

scholarly journals Scale Modeling of Snow–Avalanche Impact on Structures

1980 ◽  
Vol 26 (94) ◽  
pp. 189-196
Author(s):  
T. E. Lang ◽  
J.D. Dent
Keyword(s):  
Froude Number ◽  
Computer Modeling ◽  
Snow Avalanche ◽  
Small Scale ◽  
Snow Avalanches ◽  
Scale Modeling ◽  
Impact Processes ◽  
Model Fluid ◽  
Impact Predictions

AbstractSmall–scale modeling of flow and impact of snow avalanches is demonstrated to be both feasible and accurate. Geometric, kinematic, and force variables are scaled correctly under equivalence of Froude number between prototype and model using sifted snow as the model fluid. Physical and computer–simulated impact processes show correspondence, so that computer modeling is demonstrated to be a viable tool in flow and impact predictions.

scholarly journals USMLE Step 2 CS; to be or not to be (Preprint)

2020 ◽  
Author(s):  
Rawish Fatima ◽  
Ahmad R Assaly ◽  
Muhammad Aziz ◽  
Mohamad Moussa ◽  
Ragheb Assaly
Keyword(s):  
Design Phase ◽  
Phase 2 ◽  
Alternate Model ◽  
Usmle Step ◽  
Residency Match

UNSTRUCTURED Abstract We feel that that given the current COVID-19 crisis, it has created a lot of uncertainties and anxiety. With medical classes initially being conducted online and the ongoing match season, things do not seem to be getting better. NRMP made an official announcement on May 26 that they do not require candidates to take or pass the CS examination in order to participate in the Match. On November19, USMLE announced being in phase 2 (design phase) to relaunch this exam. For this reason, we have written our perspective of possible alternate solutions instead of conducting USMLE Step 2 CS. If the alternate model works out, it can be possibly implemented in future residency match seasons as well.

scholarly journals Pengembangan lembar kerja siswa materi garis singgung lingkaran untuk pembelajaran menggunakan model inquiry

2021 ◽  
Vol 1 (11) ◽  
pp. 916-921
Author(s):  
Baharudin Kristian Parinata ◽  
Sri Mulyati
Keyword(s):  
Field Trial ◽  
Test Evaluation ◽  
Design Phase ◽  
Phase 2 ◽  
Common Tangent ◽  
Phase 3 ◽  
Implementation Phase ◽  
Initial Investigation ◽  
Five Phases ◽  
Passing Score

Based on observations at PPL in SMP 21 Malang in 2012/2013, many student of class 8^th and 9^th are forget how to calculate the length of common tangent. The purpose of this development is to produce a student worksheet on the material tangent for activity learning using Inquiry model which is valid, practical, and effective.Development of student worksheet on tangen material for activity learning using Inquiry models was adapting by Plomp model. In developing a learning media consists of five phases: (1) initial investigation phase, (2) the design phase, (3) phase of realization / construction, (4) phase of the test, evaluation, and revision (5) the implementation phase. According from validation and the results of field trial the student worksheets were developed was valid by percentage of 88.3 percent, practically by percentage of 87.5 percent, and called effective because the scores that were obtained by six students in to answer evaluation had passed the minimum passing score which is given is 75. Berdasarkan observasi saat PPL di SMP Negeri 21 Malang tahun 2012/2013, banyak siswa kelas VIII dan IX lupa saat ditanya bagaimana cara menghitung panjang garis singgung persekutuan dua lingkaran. Tujuan dari pengembangan ini untuk mengembangkan lembar kerja siswa dengan materi garis singgung lingkaran untuk pembelajaran menggunakan model Inquiry yang valid, praktis dan efektif. Pengembangan lembar kerja siswa materi garis singgung lingkaran untuk pembelajaran model Inquiry ini dikembangkan dengan mengadaptasi model Plomp. Dalam mengembangkan media pembelajaran terdiri menjadi lima fase yaitu : (1) fase investigasi awal, (2) fase desain, (3) fase realisasi/konstruksi, (4) fase tes, evaluasi, dan revisi (5) fase implementasi. Berdasarkan hasil validasi dan uji coba lapangan lembar kerja siswa yang dikembangkan valid dengan persentase 88,3 persen, praktis dengan persentase 87,5 persen, dan dikatakan valid karena nilai evaluasi yang didapatkan oleh enam siswa memenuhi kriteria kelulusan minimal yang diberikan yaitu 75

scholarly journals Digital Classroom untuk Meningkatkan Kemampuan Metakognisi Mahasiswa dalam Pembelajaran Pkn

2019 ◽  
Vol 1 (2) ◽  
pp. 71-79
Author(s):  
Abdul Latif, Ahmad Al Yakin, Herlina Ahmad
Keyword(s):  
Learning Strategies ◽  
Preliminary Investigation ◽  
Cognitive Strategies ◽  
Test Evaluation ◽  
Design Phase ◽  
Phase 2 ◽  
Phase 3 ◽  
Implementation Phase ◽  
Digital Classroom ◽  
Thinking Processes

Abstract: Metacognition relates to students' thinking processes about their own thinking and their ability to use certain learning strategies appropriately in order to develop strategies for understanding and solving problems. Metacognition processes are (1) planning, (2) self-checking, (3) awareness and (4) cognitive strategies. To improve students' metacognition skills, strategies are needed to bridge the improvement. Digital classroom is very appropriate to be used in the 21st century because it is able to integrate ICT in the learning process. Digital classroom referred to in this research is an application made by Google that aims to help lecturers and students organize classes and communicate with students without having to be tied to class schedules in class, besides this application helps lecturers arrange and collect assignments from students and assess assignments the. This research is a development study with a Plomp development model with five stages namely (1) the preliminary investigation phase (Preliminary Investigation Phase), (2) the design phase, (3) the realization / construction phase, (realization / construction phase), ( 4) the test, evaluation and revision phase (test, evaluation and revision phase), and (5) the implementation phase. Based on the results of the analysis obtained by the development of Civics learning through digital classroom in improving students' metacognitive abilities are in a valid, practical, and effective category Abstrak: Metakognisi berhubungan dengan proses berpikir mahasiswa tentang berpikir mereka sendiri dan kemampuan mereka menggunakan strategi-strategi belajar tertentu dengan tepat dalam rangka membangun strategi untuk memahami dan memecahkan masalah. Proses metakognisi yaitu (1) perencanaan, (2) pengecekan sendiri, (3) kesadaran dan (4) strategi kognitif. Untuk meningkatkan kemampuan metakognisi mahasiswa diperlukan strategi yang dapat menjembatani peningkatan tersebut. Digital classroom sangat tepat digunakan dalam abad 21 sebab mampu mengintegrasikan ICT dalam proses pembelajaran. Digital classroom yang dimaksud dalam penelitian ini yaitu aplikasi yang dibuat oleh google bertujuan untuk membantu dosen dan mahasiswa mengorganisasi kelas serta berkomunikasi dengan mahasiswa tanpa harus terikat dengan jadwal kuliah di kelas, selain itu aplikasi ini membantu para dosen menyusun dan mengumpulkan tugas dari mahasiswa serta menilai tugas tersebut. Penelitian ini adalah penelitian pengembangan dengan model pengembangan Plomp dengan lima tahapan yaitu (1) tahap pengkajian awal (Preliminary Investigation Phase), (2) tahap perancangan (design phase), (3) tahap realisasi/konstruksi (realization/construction phase), (4) tahap tes, evaluasi dan revisi (test, evaluation and revision phase), serta (5) tahap implementasi (implementation phase). Berdasarkan hasil analisis diperoleh pengembangan pembelajaran PKn melalui digital classroom dalam meningkatkan kemampuan metakognitisi mahasiswa berada pada kategori yang valid, praktis, dan efektif.

scholarly journals Design, optimization, and testing of a high-speed centrifugal pump for motorsport application

2021 ◽  
Vol 312 ◽  
pp. 11006
Author(s):  
Luigi Mariani ◽  
Giammarco Di Giovine ◽  
Davide Di Battista ◽  
Roberto Cipollone
Keyword(s):  
Centrifugal Pump ◽  
High Speed ◽  
High Efficiency ◽  
Hydraulic Head ◽  
External Diameter ◽  
Design Phase ◽  
Centrifugal Pumps ◽  
Pump Design ◽  
Operational Conditions ◽  
Very High

Centrifugal pumps are designed to have their BEP (Best Efficiency Point) for a given flow rate, hydraulic head, and speed. In the design phase, those parameters are combined into a dimensionless specific speed used to define geometry of the pump. In this paper, a downsized centrifugal pump has been designed to have high efficiency at very high speeds (10000 – 15000 RPM), as requested by the cooling circuit of an engine for motorsport and racing applications. The pump design point was 13 L/min and 3.0 bar at 12000 RPM, while the impeller external diameter is 34 mm. A mathematical model has been realized to optimize the pump in the early design phase through an iterative process, based on a 0D procedure which generates the optimal geometry of both impeller and volute. Hence, the model estimates main losses and, thus, hydraulic, volumetric, and organic efficiency. Once the geometry is generated, the performance of the pump has been verified on the design working point through a detailed CFD analysis. Physical phenomena that occur when the pump is running have been simulated, to represent as closely as possible vein fluid detachments, cavitation, and backflow at clearances between impeller and pump casing. At last, a prototype of the pump has been built and experimentally characterized in a dynamic test bench able to reproduce the characteristic curves (hydraulic head and efficiency) at very high revolution speeds as well as the performances in real time-varying operational conditions.

scholarly journals Scale Modeling of Snow–Avalanche Impact on Structures

1980 ◽  
Vol 26 (94) ◽  
pp. 189-196 ◽  
Author(s):  
T. E. Lang ◽  
J.D. Dent
Keyword(s):  
Froude Number ◽  
Computer Modeling ◽  
Snow Avalanche ◽  
Small Scale ◽  
Snow Avalanches ◽  
Scale Modeling ◽  
Impact Processes ◽  
Model Fluid ◽  
Impact Predictions

Abstract Small–scale modeling of flow and impact of snow avalanches is demonstrated to be both feasible and accurate. Geometric, kinematic, and force variables are scaled correctly under equivalence of Froude number between prototype and model using sifted snow as the model fluid. Physical and computer–simulated impact processes show correspondence, so that computer modeling is demonstrated to be a viable tool in flow and impact predictions.

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