Planar Inverted-F Antenna Using Defected Ground Surface for Mobile Application

2020 ◽  
pp. 611-619
Author(s):  
Tejaswi Jadhav ◽  
Shraddha Deshpande
Keyword(s):  
Mobile Application ◽  
Ground Surface

scholarly journals Comparing mobile and static assessment of biomass in heterogeneous grassland with a multi-sensor system

2016 ◽  
Vol 5 (2) ◽  
pp. 301-312 ◽  
Author(s):  
Hanieh Safari ◽  
Thomas Fricke ◽  
Björn Reddersen ◽  
Thomas Möckel ◽  
Michael Wachendorf
Keyword(s):  
Mobile Application ◽  
Prediction Accuracy ◽  
Prediction Models ◽  
Ground Surface ◽  
Grazing Intensity ◽  
Sensor System ◽  
Position Errors ◽  
Static Assessment ◽  
Low Levels ◽  
True Values

Abstract. The present study aimed to test a mobile device equipped with ultrasonic and spectral sensors for the assessment of biomass from diverse pastures and to compare its prediction accuracy to that from static measurements. Prediction of biomass by mobile application of sensors explained  > 63 % of the variation in manually determined reference plots representing the biomass range of each paddock. Accuracy of biomass prediction improved with increasing grazing intensity. A slight overestimation of the true values was observed at low levels of biomass, whereas an underestimation occurred at high values, irrespective of stocking rate and years. Prediction accuracy with a mobile application of sensors was always lower than when sensors were applied statically. Differences between mobile and static measurements may be caused by position errors, which accounted for 8.5 cm on average. Beside GPS errors (±1–2 cm horizontal accuracy and twice that vertically), position inaccuracy predominantly originated from undirected vehicle movements due to heaps and hollows on the ground surface. However, the mobile sensor system in connection with biomass prediction models may provide acceptable prediction accuracies for practical application, such as mapping. The findings also show the limits even sophisticated sensor combinations have in the assessment of biomass of extremely heterogeneous grasslands, which is typical for very leniently stocked pastures. Thus, further research is needed to develop improved sensor systems for supporting practical grassland farming.

The Memory of the Ground Surface Representation for Space Perception

2008 ◽  
Author(s):  
Lei Zhu ◽  
Zijiang J. He ◽  
Teng Leng Ooi
Keyword(s):  
Ground Surface ◽  
Space Perception ◽  
Surface Representation

PTSD coach mobile application with brief telephone support: A pilot study.

2019 ◽  
Vol 16 (2) ◽  
pp. 227-232 ◽  
Author(s):  
Quyen Q. Tiet ◽  
Heather Duong ◽  
Laila Davis ◽  
Rebecca French ◽  
Christopher L. Smith ◽  
...  
Keyword(s):  
Pilot Study ◽  
Mobile Application ◽  
Telephone Support

Questionnaire for Evaluating Virtual Reality Glasses Mobile Application

2019 ◽  
Author(s):  
Mengli Yu ◽  
Ronggang Zhou ◽  
Huiwen Wang ◽  
Weihua Zhao
Keyword(s):  
Virtual Reality ◽  
Mobile Application

Application of BYOD technology in education on the example of Lecture Racing mobile application

2019 ◽  
pp. 56-64 ◽  
Author(s):  
Ju. M. Tsarapkina ◽  
N. V. Dunaeva ◽  
A. M. Kireicheva
Keyword(s):  
Theoretical Analysis ◽  
Mobile Application ◽  
Educational Practice ◽  
Educational Material ◽  
Educational Process ◽  
Bring Your Own Device ◽  
Technology In Education ◽  
Information Culture ◽  
Current State ◽  
Independent Assessment

The article describes the use of BYOD technology (Bring Your Own Device) in educational practice using the Lecture Racing mobile application. This application provides feedback between the teacher and students both in the classroom and during distance learning, contributes to the visualization of educational material and, in general, the informatization of the educational process. The purpose of the study is to conduct a theoretical analysis of the current state and prospects for the development of BYOD technology in Russia and abroad, and to test the benefits of using this technology in educational practice using the specific mobile application. During the study, an analysis of scientific, theoretical and practical literature on BYOD technology was carried out. In the process of experimental work, test tasks were the instrument of measuring knowledge and skills of students. As a result of a theoretical analysis and study of the practical possibilities of using BYOD technology (using the Lecture Racing mobile application as an example), it was found that this technology allows you to visualize information that is displayed in real time on the screen of each student's mobile device, regardless of its location. This technology also allows both the student and the teacher to quickly work with information, provide feedback, receive an independent assessment (since the assessment is set automatically), saves time, and develops the information culture of students.

Aplikasi metode tahanan jenis dalam studi geologi karst Gua Seropan di Gunung Kidul, Yogyakarta

2017 ◽  
Vol 12 (2) ◽  
pp. 105-116
Author(s):  
Pulung A. Pranantya ◽  
Nurlia Sadikin
Keyword(s):  
Fresh Water ◽  
Ground Surface ◽  
Water Source ◽  
Raw Water ◽  
Limited Information ◽  
Resistivity Method ◽  
Central Java ◽  
Underground River ◽  
Initial Exploration

In terms of geology, most areas in south of the Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the existence of underground river in caves, however, indicate the potential amount of water within the area, especially in the eastern part of the Gunungkidul District. Although limited information available, some fishermen have discovered that Seropan cave contains fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using a multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The isopach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results, i.e. 110o2223.6388 EL 8o42.874 SL. [DY1][PP2][DY1]Perbaiki grammarIn terms of geology, most areas in south of Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the exixtence of underground river in caves, however, indicate potential amount of water within the area especially in eastern part of Gunungkidul District. Although limited information available, some fishermans has discovered that Seropan cave contain fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The iso pach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results i.e. 110o2223.6388 EL 8o42.874 SL.[PP2]Sudah diperbaiki

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