Optimization of Electrical Energy Usage in Two Secondary Schools Using Different Types of Glass Materials

2017 ◽  
pp. 616-625
Author(s):  
M.d. Gholam Yazdani ◽  
M.d. Abdus Salam ◽  
Quazi Mehbubar Rahman ◽  
Raadhiya Sofri ◽  
Azrieka Kamal
Keyword(s):  
Secondary Schools ◽  
Electrical Energy ◽  
Energy Usage ◽  
Different Types

scholarly journals Potential of Root Crops as Source of Electrical Energy

2013 ◽  
pp. 22-39
Author(s):  
Daniel Leslie Tan ◽  
Julie Tan ◽  
Mark Anthony Atanacio ◽  
Ruel Delantar
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Regression Models ◽  
Energy Recovery ◽  
Electrical Energy ◽  
Galvanic Cell ◽  
Waste Waters ◽  
Light Emitting ◽  
Root Crops ◽  
Different Types

Energy from edible and inedible root crop roots and tubers using galvanic cell and processing waste waters through microbial fuel cell (MFC) technology was harnessed. Electrolyte in the roots and tubers was tapped for galvanic cell and the microorganisms from waste waters act as catalyst in MFC. In galvanic cell, the optimized responses of badiang, cassava and sweetpotato were greatly affected by the surface area and distance between anode and cathode electrodes. An increase of nata-de-coco membrane size in MFC increased the voltage and current by 4.94 and 11.71 times, respectively. Increasing the width of anode also enhanced the responses. Different types of microorganisms were isolated from the biofilm anode of MFC. Their growth and proliferation which corresponded to the generation of electricity were also demonstrated in this study. A total of 54 bacterial isolates were collected from the biofilm at the anode of single-chamber MFC (SCMFC). The generated electricity observed using light emitting diodes (LED) showed potential both for galvanic and microbial fuel cell. The generated regression models are reliable tools in predicting desired outputs for future applications. These promising results demonstrated basic information on the electrical energy recovery from rootcrop waste waters and roots/tubers.

scholarly journals Smart energy monitoring based on IoT Lora-Wan on the campus buildings: Case study Indonesian Defence University (Unhan), Sentul, Bogor

2021 ◽  
Vol 878 (1) ◽  
pp. 012065
Author(s):  
S Ramadhan ◽  
L Lisapaly ◽  
D Boesrony
Keyword(s):  
Interconnection Networks ◽  
Electrical Energy ◽  
Physical Structure ◽  
Maximum Efficiency ◽  
Smart Devices ◽  
Energy Usage ◽  
Smart Building ◽  
Energy Meter ◽  
Campus Building

Abstract Smart building constructions such as Campus Buildings have been designed for use, where the physical structure and system components are interrelated and can maximize functionality for operation and maintenance. So that the Campus building can be used with a longer age. One of the sub-systems that can monitor and notify the range of energy usage on a campus building is a smart electrical energy meter (kWh meter), which is connected to all devices that consume electrical energy in campus buildings. These interconnected smart devices use IoT (Internet of Things) interconnection networks and low power wireless technology (Lora). In a case study of the use of this system at the Indonesian Defense University, Unhan, Sentul, Bogor, West Java, it can be seen how the maximum efficiency in the use of electrical energy can be obtained in the smart campus building construction, which runs automatically.

Smart Metering for Applications

2014 ◽  
Vol 960-961 ◽  
pp. 823-827
Author(s):  
Ying Pan ◽  
Bo Jiang
Keyword(s):  
Smart Grid ◽  
Electrical Energy ◽  
Smart Meter ◽  
Smart Metering ◽  
Power Network ◽  
Energy Usage ◽  
Smart Meters ◽  
Additional Information ◽  
Energy Efficiency Improvement ◽  
Energy Meter

As an important part of Smart Grid, smart metering attracts more and more attention all over the world. It is the way for energy consumer to sense the benefit of smart grid directly. Smart meter is an advanced energy meter that measures consumption of electrical energy providing additional information compared to a conventional energy meter. This paper discusses various applications and technologies that can be integrated with a smart meter. Smart meters can be used not only from the supply side monitoring but also for the demand side management as well. It plays an important role to monitor the performance and the energy usage of the grid loadings and power quality. In addition, This paper gives a comprehensive view on the benefit of smart metering in power network such as energy efficiency improvement.

Design and Underwater Tests of Subsea Walking Hexapod MAK-1

2016 ◽  
Author(s):  
Vadim V. Chernyshev ◽  
Vladimir V. Arykantsev ◽  
Andrey E. Gavrilov ◽  
Yaroslav V. Kalinin ◽  
Nikolay G. Sharonov
Keyword(s):  
Movement Control ◽  
Experimental Tests ◽  
Energy Usage ◽  
Walking Machine ◽  
Walking Machines ◽  
Sea Bottom ◽  
Different Types ◽  
Robotic Devices ◽  
And Control ◽  
System Power

An important role among machines for sea bottom exploration is assigned to the autonomous ground devices. Some rescue tasks also require subsea robotic devices. The main purpose of the work is to investigate and improve adaptive characteristics, traction properties and control methods of cyclic walking movers in underwater conditions. Traction properties of walking machines, which moves at sea bottom was analyzed. Some experience of development and experimental tests of the walking robot “Vosminog”, designed for work at weak and waterlogged grounds. Dynamic model of a walking machine has been shown. Studied an opportunity to increase adaptive characteristics and shape passableness of walking machines. Also design and results of underwater tests of subsea walking unit MAK-1 are discussed. During tests the performance of a walking unit has been checked and the influence of design features of a walking mover on its traction characteristics and ground passability has been investigated. Some details about control system, power system and energy usage, vertical motions and accelerations for different types of walking and conditions of movement has been given. Also, certain attention was given to testing of methods of standalone movement control of subsea unit in conditions of incomplete and ambiguous vision of current situation. Tests have shown that walking movers in subsea conditions can provide higher traction properties, in comparison with wheeled and tracked ones. The unit can be used for exploration of seabed resources and for rescue tasks.

De Behoeften aan Moderne Vreemde Talen en Differentiatie in Doelstellingen Voor Vreemde-Talenonderwijs

1977 ◽  
Vol 3 ◽  
pp. 58-71
Author(s):  
Maria Oud-de Glas
Keyword(s):  
Secondary Schools ◽  
Foreign Language ◽  
Language Teaching ◽  
Foreign Language Teaching ◽  
Foreign Languages ◽  
Technical Schools ◽  
Different Types ◽  
Actual Use ◽  
Language Needs ◽  
The University

At the Institute for Applied Sociology of the University of Nijmegen, an investigation into foreign language needs of several groups in Dutch society has been carried out in 1975 through 1977. Questionnaires were submitted to these different groups, e.g. to former pupils of secondary schools. The questionnaire consisted mainly of a list of 24 descriptions of situations in which foreign languages are used. In these descriptions the significant features of language situations are systematically varied. For each situa-tion we asked if and how frequently it occurs and if the knowledge of the languages learnt is sufficient for this kind of situation. The results of the investigation show large differences in language needs (defined as actual use of the foreign language and shortcomings in the knowledge of that language in certain situations) both between the former pupils of the different types of secondary schools as well as between the languages most commonly taught in Dutch schools, French, German and English. More specifically it was found that the actual use of foreign languages occurs more frequently among former pupils of certain vocational schools (especially technical schools) than among former pupils of general secondary schools. French appears to be used less frequently than German and English. English is used by a somewhat larger group than German, but this does not hold for all groups. Former pupils of technical schools use German as much as English. The resulting data can be used to choose objectives for foreign language teaching. There is however no simple and direct way from language needs to objectives. In choosing objectives on the basis of findings on language needs, one will have to decide which measure of language needs is taken into account and how this measure (or these measures) is (are) used. If we decide for example to take the size of the group that has actually used a foreign language in one of the situations as a criterion for the choice of that situation as a part of the objectives of language teaching, we will then have to decide where we draw the line between situations that are and situations that are not important enough to be chosen. In other words, we have to decide how large the group of language users must be. It is evident that there is no shorter way from language needs to objectives than a carefully argued choice of measures and of the use of these measures.

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