scholarly journals PERANCANGAN SISTEM PEMANTAU KUALITAS AIR PADA BUDIDAYA IKAN AIR TAWAR

2020 ◽  
Vol 1 (2) ◽  
pp. 11-17
Author(s):  
Kuat Indartono ◽  
Bagus Adhi Kusuma ◽  
Agam Purusha Putra
Keyword(s):  
Dissolve Oxygen ◽  
Data Logger

Melimpahnya sumberdaya air di Indonesia dapat dimanfaatkan sebagai budidaya ikan air tawar. Namun kekayaan sumberdaya air tersebut terkadang tidak dijaga oleh manusia sehingga kualitas air yang digunakan untuk budidaya ikan menjadi kurang baik atau bahkan di bawah standar. Misalnya pencemaran limbah yang sering terjadi saat ini tidak hanya dapat menyerang wilayah perkotaan namun juga pedesaan seperti adanya limbah rumah tangga. Selain itu pergantian musim penghujan dan kemarau, dan faktor yang lain seperti kebencanaan juga dapat menyebabkan perubahan kualitas air. Parameter kualitas air tidak hanya diukur dari segi pencemaran kandungan kimiawi, namun terdapat beberapa parameter yang sangat berpengaruh lainnya seperti pH, suhu, kekeruhan air, dan kadar oksigen terlarut (dissolve oxygen). Banyaknya angka kematian ikan pada proses budidaya ikan pembenihan maupun pembesaran disebabkan oleh faktor-faktor tersebut. Penelitian yang telah dilakukan sebelumnya adalah dengan cara memonitor kondisi kualitas air dengan menggunakan satu atau dua sensor saja, misal pH dan Suhu. Sedangkan beberapa parameter lainnya seharusnya juga menjadi pertimbangan seperti kekeruhan air, dan oksigen terlarut agar pertumbuhan ikan menjadi lebih baik. Oleh karena itu perlu dirancang suatu metode yang dapat memonitor kondisi air secara heuristik sekaligus memberikan peringatan apabila terdapat suatu kondisi air yang tidak normal atau tidak semestinya. Pada penelitian ini dirancang suatu sistem yang dapat memonitor kualitas air dengan berbasis mikrokontroler Arduino. Alat ini dapat mengukur beberapa parameter sekaligus yaitu pH, suhu, kekeruhan air, salinitas dan kadar oksigen terlarut. Jika ada parameter yang tidak normal, maka alarm akan aktif. Sistem ini menggunakan data logger untuk melihat datadata dari sensor yang terpasang yang dapat digunakan untuk pengamatan lebih lanjut. Penelitian ini diharapkan dapat meminimalkan angka kematian ikan budidaya air tawar sehingga produksi ikan meningkat dan tercipta ketahanan pangan masyarakat yang baik.

Computers for data, control and simulation

1988 ◽  
Vol 46 ◽  
pp. 920-921
Author(s):  
David C. Joy
Keyword(s):  
Personal Computers ◽  
Monitoring And Control ◽  
Data Logging ◽  
Data Logger ◽  
Operational Conditions ◽  
Data Control ◽  
The Many ◽  
And Control

Personal computers (PCs) are a powerful resource in the EM Laboratory, both as a means of automating the monitoring and control of microscopes, and as a tool for quantifying the interpretation of data. Not only is a PC more versatile than a piece of dedicated data logging equipment, but it is also substantially cheaper. In this tutorial the practical principles of using a PC for these types of activities will be discussed.The PC can form the basis of a system to measure, display, record and store the many parameters which characterize the operational conditions of the EM. In this mode it is operating as a data logger. The necessary first step is to find a suitable source from which to measure each of the items of interest. It is usually possible to do this without having to make permanent corrections or modifications to the EM.

Modeling of Contact Patch in Dual-Chamber Pneumatic Tires

2018 ◽  
Vol 46 (2) ◽  
pp. 78-92 ◽  
Author(s):  
A. I. Kubba ◽  
G. J. Hall ◽  
S. Varghese ◽  
O. A. Olatunbosun ◽  
C. J. Anthony
Keyword(s):  
Strain Sensors ◽  
Surface Strain ◽  
Wireless Data ◽  
Data Logger ◽  
Dual Chamber ◽  
Piezoelectric Polymer ◽  
Pure Rolling ◽  
Piezoelectric Elements ◽  
Strain Data ◽  
Deformation Patterns

ABSTRACT This study presents an investigation of the inner tire surface strain measurement by using piezoelectric polymer transducers adhered on the inner liner of the tire, acting as strain sensors in both conventional and dual-chamber tires. The piezoelectric elements generate electrical charges when strain is applied. The inner liner tire strain can be found from the generated charge. A wireless data logger was employed to measure and transmit the measured signals from the piezoelectric elements to a PC to store and display the readout signals in real time. The strain data can be used as a monitoring system to recognize tire-loading conditions (e.g., traction, braking, and cornering) in smart tire technology. Finite element simulations, using ABAQUS, were employed to estimate tire deformation patterns in both conventional and dual-chamber tires for pure rolling and steady-state cornering conditions for different inflation pressures to simulate on-road and off-road riding tire performances and to compare with the experimental results obtained from both the piezoelectric transducers and tire test rig.

Experimental Evaluation of Turbo-Matching Appropriateness of B60J67, B60J68, A58N70 and A58N72 Turbo-Chargers for a Commercial Vehicle Engine

2018 ◽  
Vol 6 (11) ◽  
pp. 71
Author(s):  
Badal Dev Roy ◽  
R. Saravanan
Keyword(s):  
Internal Combustion Engines ◽  
Perfect Match ◽  
Engine Performance ◽  
Operating Conditions ◽  
Data Logger ◽  
Negative Effects ◽  
Road Test ◽  
The Road ◽  
A Charge ◽  
All Speeds

The Turbocharger is a charge booster for internal combustion engines to ensure best engine performance at all speeds and road conditions especially at the higher load.  Random selection of turbocharger may lead to negative effects like surge and choke in the breathing of the engine. Appropriate selection or match of the turbocharger (Turbomatching) is a tedious task and expensive. But perfect match gives many distinguished advantages and it is a one time task per the engine kind. This study focuses to match the turbocharger to desired engine by simulation and on road test. The objective of work is to find the appropriateness of matching of turbochargers with trim 67 (B60J67), trim 68 (B60J68),  trim 70 (A58N70) and trim 72 (A58N72) for the TATA 497 TCIC -BS III engine. In the road-test (data-logger method) the road routes like highway and slope up were considered for evaluation. The operating conditions with respect various speeds, routes and simulated outputs were compared with the help of compressor map.

ADST Cold Start Procedures Manual for the BDS-D Data Logger 1.0.0

1993 ◽  
Author(s):  
Carl Swanson ◽  
Brad Mohning ◽  
Pete Peterson
Keyword(s):  
Cold Start ◽  
Data Logger

ADST Version Description Document for the BDS-D Data Logger 1.0.0

1993 ◽  
Author(s):  
Carl Swanson ◽  
Karen Humber ◽  
Rick Bright ◽  
Lynn Thompson ◽  
Pete Peterson
Keyword(s):  
Data Logger

scholarly journals Thermolabile drug storage in an ambulatory setting

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fernando do Pazo-Oubiña ◽  
Bartomeu Alorda-Ladaria ◽  
Ana Gomez-Lobon ◽  
Bàrbara Boyeras-Vallespir ◽  
María Margalida Santandreu-Estelrich ◽  
...  
Keyword(s):  
Tertiary Care ◽  
Statistical Treatment ◽  
Storage Conditions ◽  
Ambulatory Setting ◽  
Temperature Record ◽  
Care Hospital ◽  
Data Logger ◽  
Data Loggers ◽  
Ambulatory Patients ◽  
Clinical Consequences

AbstractMore thermolabile drugs are becoming available, and in most cases, these medications are dispensed to ambulatory patients. However, there is no regulation once medications are dispensed to patients and little is known with regard to what happens during transport and home storage. Previous studies suggest that these drugs are improperly stored. The present study was designed to determine the storage conditions of thermolabile drugs once they are dispensed to the patient in the Hospital Pharmacy Department. This is a prospective observational study to assess the temperature profile of 7 thermolabile drugs once they are dispensed to ambulatory patients at a tertiary care hospital. A data logger was added to the medication packaging. Temperature was considered inappropriate if one of the following circumstances were met: any temperature record less than or equal to 0 °C or over 25 °C; temperatures between 0–2 or 8–25 °C for a continuous period over 30 min. The time series of temperature measurements obtained from each data logger were analyzed as statistically independent variables. The data shown did not undergo any statistical treatment and must be considered directly related to thermal measurements. One hundred and fourteen patients were included and 107 patients were available for the analysis. On the whole, a mean of 50.6 days (SD 18.3) were measured and the mean temperature was 6.88 °C (SD 2.93). Three data loggers (2.8%) maintained all the measurements between 2 and 8 °C with less than 3 continuous data (< 30 min) out of this range but no data over 25 °C or below or equal to 0 °C. 28 (26.2%) data loggers had at least one measurement below zero, 1 data logger had a measurement greater than 25 °C and 75 (70.1%) were between 0 and 2 °C and/or between 8 and 25 °C for more than 30 min. In conclusion, once dispensed to patients, most thermolabile drugs are improperly stored. Future studies should focus on clinical consequences and possible solutions.

scholarly journals Proposal for Tower Crane Productivity Indicators Based on Data Analysis in the Era of Construction 4.0

Buildings ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 21
Author(s):  
Thomas Danel ◽  
Zoubeir Lafhaj ◽  
Anand Puppala ◽  
Sophie Lienard ◽  
Philippe Richard
Keyword(s):  
Time Series ◽  
Data Analysis ◽  
Statistical Analysis ◽  
Data Collection ◽  
Structural Phase ◽  
Sampling Technique ◽  
Construction Site ◽  
Data Logger ◽  
Tower Crane ◽  
Productivity Indicators

This article proposes a methodology to measure the productivity of a construction site through the analysis of tower crane data. These data were obtained from a data logger that records a time series of spatial and load data from the lifting machine during the structural phase of a construction project. The first step was data collection, followed by preparation, which consisted of formatting and cleaning the dataset. Then, a visualization step identified which data was the most meaningful for the practitioners. From that, the activity of the tower crane was measured by extracting effective lifting operations using the load signal essentially. Having used such a sampling technique allows statistical analysis on the duration, load, and curvilinear distance of every extracted lifting operation. The build statistical distribution and indicators were finally used to compare construction site productivity.

Design of the data logger with IEC standard for PV system

2019 ◽  
Author(s):  
Orrawan Rewthong ◽  
Usa Boonbumroong ◽  
Thatree Mamee ◽  
Busarin Eamthanakul ◽  
Narun Luewarasirikul ◽  
...  
Keyword(s):  
Data Logger ◽  
Pv System
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