scholarly journals Using In-Process Testing Metrics to Estimate Post-Release Field Quality

Author(s):  
Nachiappan Nagappan ◽  
Laurie Williams ◽  
Mladen Vouk ◽  
Jason Osborne
2019 ◽  
Vol 276 ◽  
pp. 05009
Author(s):  
Alatas Idrus M ◽  
Simatupang Pintor T ◽  
Kuswaya Wawan ◽  
Panji

Clay shale is a claystone which in fresh condition has a very high shear strength. When it reacts with the atmosphere or hydrosphere it will weather so that the shear strength of clay shale will drop drastically. The weathering potential of clay shale is generally done by the slake durability test and the weathering process is measured by disintegration ratio test (DR). The strength of clay shale that has fully weathered will increase again when it is stabilized with a minimum of 6% PC (Portland Cement). It was found from the wetting drying cycle process testing that durability of re-weathering of stabilized clay shale with PC is increased compared to natural clay shale. Disintegration ratio of natural clay shale DR was smaller than stabilized clay shale with 6% PC. Additionally, more than 6% PC increased the durability of re-weathering of clay shale.


2021 ◽  
Vol 6 (2) ◽  
pp. 93-104
Author(s):  
Aisyah Amini ◽  
Riri Okra

ALKI is an e-module that serves as a learning medium for grade X students majoring in MIA at SMAN 1 MAPAT TUNGGUL. E-module ALKI was created with the aim of assisting teachers in delivering materials and helping students understand more about chemical materials by repeating lessons, working on exercises, and strengthening memory by playing flashcards. The thing behind the design of alki e-module is the lack of motivation to learn students, difficulty and the absence of internet network in Mapat Tunggul area, students should not take home the package book, the smartphone owned by students is not used to study, and when doing homework with the help of the internet most students just copy the answer without understanding the origin of the answer. This research method is Research and Development (R&D) with a 4-D research model (four-D) that is with define, Design, Development, and Disseminate stages. In the Development stage, the development stage of ALKI e-module media is carried out. The media development model used in this study is MDLC(Multimedia Development Life Cycle) luther-sutopo version which consists of 6 stages, namely conception, design, material collection, manufacturing process, testing and distribution. The result of the research is a mobile-based ALKI e-module product. With 0.81 validity test results declared valid,0.93 Practicality test results are practiced very practically,and 0.80 effectiveness test results are declared very effective. So, it can be concluded that alki e-module based on mobile application as a learning medium has been valid, practical and effective.


2001 ◽  
Author(s):  
Chris B Cook ◽  
Marshall C Richmond ◽  
Greg Guensch
Keyword(s):  

2001 ◽  
Author(s):  
Christopher B. Cook ◽  
Marshall C. Richmond ◽  
Gregory R. Guensch
Keyword(s):  

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