Distance Learning Implementation and Evaluation

Evaluation and Implementation of Distance Learning ◽

10.4018/978-1-878289-63-6.ch006 ◽

2000 ◽

pp. 171-194

Author(s):

France Belanger ◽

Dianne H. Jordan

Keyword(s):

Distance Learning ◽

Feasibility Analysis ◽

Implementation Phase ◽

Design Considerations

The implementation phase of a DL or technology insertion initiative begins after 1) the results of the feasibility analysis indicate whether, and to what extent, your courses should be converted to DL, or whether they could benefit from technology insertion into existing classrooms, 2) design considerations have been worked out, and 3) development has been done with existing staff resources or contractor support. This chapter outlines the issues, processes and practical tips for implementing and evaluating your DL initiative.

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Photovoltaics- and Battery-Based Power Network as Sustainable Source of Electric Power

Energies ◽

10.3390/en13195048 ◽

2020 ◽

Vol 13 (19) ◽

pp. 5048

Author(s):

Prahaladh Paniyil ◽

Vishwas Powar ◽

Rajendra Singh ◽

Benjamin Hennigan ◽

Pamela Lule ◽

...

Keyword(s):

Power Generation ◽

Lithium Ion Batteries ◽

Lithium Ion ◽

Feasibility Analysis ◽

Economic Viability ◽

Design Parameters ◽

Energy Sources ◽

Power Network ◽

Design Considerations ◽

Sustainable Power

With the rise in the utilization of free fuel energy sources, namely solar and wind, across the globe, it has become necessary to study and implement models of a sustainable power network. This paper focuses on the design of a conceptual power network based on photovoltaics (PV) for power generation and lithium-ion batteries for storage. The power system showcases the various metrics that are involved in a grid-tied PV- and battery-based power network. It also encompasses the various design parameters and sizing considerations to design and conceptualize such a power network. The model focuses on the importance of the conservation of power by avoiding wastage of generated power through inverter sizing and design considerations. Finally, an economic and feasibility analysis is carried out to showcase the economic viability of the PV- and battery-based power network in today’s alternating current (AC)-based grid.

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Persepsi Mahasiswa terhadap Pelaksanaan Perkuliahan Eksperimen Jarak Jauh Fisika Dasar di Masa Pandemi

SAP (Susunan Artikel Pendidikan) ◽

10.30998/sap.v6i2.9850 ◽

2021 ◽

Vol 6 (2) ◽

Author(s):

Dina Syaflita ◽

Naila Fauza ◽

Zulhelmi Zulhelmi ◽

Ernidawati Ernidawati

Keyword(s):

Distance Learning ◽

Descriptive Analysis ◽

Descriptive Study ◽

Fundamental Physics ◽

Implementation Phase ◽

Basic Physics ◽

Qualitative Descriptive ◽

Physics Experiment ◽

Physics Experiments ◽

Academic Year

The implementation of remote basic physics experiments during a pandemic has its own challenges. This experiment had problems in terms of planning, implementation, and reporting. The purpose of this study are to describe the implementation of synchronous distance learning of fundamental physics experiments using simple tools and to find out students' perceptions regarding the obstacles in the synchronous distance learning implementation of experiments. This research is a qualitative descriptive study. The instrument used is a questionnaire distributed using Google Form. The respondents in this study were 69 students who took the fundamental physics experiment course in the odd semester of the 2020/2021 academic year. Analysis of research data was carried out using descriptive analysis methods. The results of this study indicated that the application of Google Meetassisted experiments using simple tools and materials that were easily obtained by students could reduce the problem of completing tools and materials by students and the use of Google Meet allowed the mentoring process during the experiment by the lecturer. The most common obstacles encountered by students were obstacles in the implementation phase where sometimes the internet network did not support it while students needed to listen to the direction of the supporting lecturer, especially if the instructions in the manual were not well understood.

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Morphological behavior of compatibilized ternary blends prepared by mechanical mixing

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100151830 ◽

1993 ◽

Vol 51 ◽

pp. 1200-1201

Author(s):

S.D. Smith ◽

R.J. Spontak ◽

D.H. Melik ◽

S.M. Buehler ◽

K.M. Kerr ◽

...

Keyword(s):

Interfacial Adhesion ◽

Diblock Copolymers ◽

Ternary Blends ◽

Mechanical Mixing ◽

Design Considerations ◽

Covalently Bonded ◽

Homopolymer Blends ◽

Emulsifying Agent ◽

Surface Active ◽

Low Entropy

When blended together, homopolymers A and B will normally macrophase-separate into relatively large (≫1 μm) A-rich and B-rich phases, between which exists poor interfacial adhesion, due to a low entropy of mixing. The size scale of phase separation in such a blend can be reduced, and the extent of interfacial A-B contact and entanglement enhanced, via addition of an emulsifying agent such as an AB diblock copolymer. Diblock copolymers consist of a long sequence of A monomers covalently bonded to a long sequence of B monomers. These materials are surface-active and decrease interfacial tension between immiscible phases much in the same way as do small-molecule surfactants. Previous studies have clearly demonstrated the utility of block copolymers in compatibilizing homopolymer blends and enhancing blend properties such as fracture toughness. It is now recognized that optimization of emulsified ternary blends relies upon design considerations such as sufficient block penetration into a macrophase (to avoid block slip) and prevention of a copolymer multilayer at the A-B interface (to avoid intralayer failure).

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Theoretical And Practical Design Considerations for Ultra-High Resolution Electron Lenses

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600001161 ◽

1980 ◽

Vol 38 ◽

pp. 266-269

Author(s):

Y. Harada ◽

K. Tsuno ◽

Y. Arai

Keyword(s):

Optical Properties ◽

High Resolution ◽

Chromatic Aberration ◽

Point Of View ◽

Pole Piece ◽

Axial Field ◽

Design Considerations ◽

Resolution Electron ◽

Practical Design ◽

Peak Flux

Magnetic objective lenses, from the point of view of pole piece geometry, can he roughly classified into two types, viz., symmetrical and asymmetrical. In the case of the former, the optical properties have been calculated by several authors1-3) and the results would appear to suggest that, in order to reduce the spherical and chromatic aberration coefficients, Cs and Cc, it is necessary to decrease the half-width value of the axial field distribution and to increase the peak flux density. The expressions for either minimum Cs or minimum Cc were presented in the form of ‘universal’ curves by Mulvey and Wallington4).

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