Готові списки джерел за темами / Bio-logger

Добірка наукової літератури з теми "Bio-logger"

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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Статті в журналах з теми "Bio-logger"

SAMEJIMA, Masaki, Takuya MAEKAWA, Yasue KISHINO, Junichi NAKAI, and Ken YODA. "Development of Event-driven Logger for Bio-logging." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2017 (2017): 2A2—P06. http://dx.doi.org/10.1299/jsmermd.2017.2a2-p06.

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Schlichting, Alexander D., and Ephrahim Garcia. "A self-reliant avian bio-logger: energy storage considerations." Smart Materials and Structures 23, no. 1 (December 6, 2013): 015004. http://dx.doi.org/10.1088/0964-1726/23/1/015004.

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Abe, Takuma, Natsumi Kubo, Kazuki Abe, Hirokazu Suzuki, Yuichi Mizutani, Ken Yoda, Riichiro Tadakuma, and Yuichi Tsumaki. "Development of Data Logger Separator for Bio-Logging of Wild Seabirds." Journal of Robotics and Mechatronics 33, no. 3 (June 20, 2021): 446–56. http://dx.doi.org/10.20965/jrm.2021.p0446.

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The bio-logging technique is extensively used in the fields of ecology and ethology, wherein a data logger, such as a sensor or camera, is attached to the target animal’s body to collect the required data. In this method, the efficiency of recovery of the data logger is not ideal. In this study, we proposed a new recovery method, with the aim of addressing the aforementioned problem in bio-logging. The authors previously fabricated a data-logger separator, which weighed approximately 10 g, and was targeted at small seabirds. Because there were some problems associated with the circuit board and the separation performance of this device, we modified the device to overcome the previous drawbacks. We fabricated a flexible printed circuit to improve the operation of the mounted actuator and wireless microcomputer, and improve the efficiency of the fabrication process. We conducted an experiment to determine the proper length and position at which the actuator is attached, in order to achieve a stable motion. We thus fabricated a new prototype with these improvements and performed an operational test at low temperatures from a particular distance, simulating actual usage in a natural environment. The results demonstrated that separation occurred without failure, thus indicating that the separator can be efficiently used in practical environment.

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Virens, Josef, and Alison Cree. "Further miniaturisation of the Thermochron iButton to create a thermal bio-logger weighing 0.3 g." Journal of Experimental Biology 221, no. 11 (April 19, 2018): jeb176354. http://dx.doi.org/10.1242/jeb.176354.

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Cook, A. J., G. D. Gargiulo, T. Lehmann, and T. J. Hamilton. "Open platform, eight‐channel, portable bio‐potential and activity data logger for wearable medical device development." Electronics Letters 51, no. 21 (October 2015): 1641–43. http://dx.doi.org/10.1049/el.2015.2764.

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Nekhubvi, Vhutshilo, and David Tinarwo. "Long-term temperature measurement: Biogas digesters fermenting slurry." Journal of Energy in Southern Africa 28, no. 3 (September 22, 2017): 99. http://dx.doi.org/10.17159/2413-3051/2017/v28i3a1437.

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This paper reports the results of the temperature profile of the unheated and unstirred continuous fermenting bio-slurry in a fixed-dome Deenbandhu 2000 model. The digester is a brick-built system of bulk size 6 m3. The digester was monitored for eight months, measuring internal bio-slurry temperature. A K-type nickel chromium-nickel temperature sensor with a sensitivity of approximately 41 µV and response time of 0.8s in liquids was positioned at the centre of the digester to measure the slurry temperature. The sensor was connected to the data logger and programmed to record temperature readings every second for the entire study period. The study results reported give a clear indication about the reaction of bio-slurry temperature in the digester at a local level, particularly for the eight months’ period, which covered all seasons. The calculated values of the daily average temperature reveal that the digester was operating within the range of psychrophilic 10.32 and mesophilic 28.80 , although it sometimes operated at 35 and above during certain hours in summer. This study is useful for anaerobic digestion processes for biogas production. The results obtained can be used as a basis to estimate the amount of heat required to raise the temperature of digesters to reach an optimum temperature of mesophilic digesters.

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Akamatsu, Tomonari, Akihiko Matsuda, Shiro Suzuki, Ding Wang, Kexiong Wang, Michihiko Suzuki, Hiroyuki Muramoto, Naoki Sugiyama, and Katsunori Oota. "New Stereo Acoustic Data Logger for Free-ranging Dolphins and Porpoises." Marine Technology Society Journal 39, no. 2 (June 1, 2005): 3–9. http://dx.doi.org/10.4031/002533205787443980.

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To observe the bio-sonar behavior of dolphins and porpoises, a miniature stereo acoustic data logger was developed to record the echolocation clicks of small cetaceans. The 'A-tag' device is small enough to be attached to a dolphin or porpoise. A-tag can record the sonar pulse intensity, precise inter-click-intervals, and time difference between sounds arriving at two different hydrophones. The A-tag works for up to 60 hours continuously and allows observation of the sonar target range of free-ranging odontocetes. The time of arrival at the two hydrophones on the tag allows vocalizations from nearby individuals to be identified. A less invasive tagging technique using a suction cup was also developed. A mean attachment time of 15 hours was obtained on free-ranging finless porpoises in a freshwater system in China. The A-tag proved to be a useful tool for investigating the underwater echolocation behavior of odontocetes.

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Rast, Wanja, Leon M. F. Barthel, and Anne Berger. "Music Festival Makes Hedgehogs Move: How Individuals Cope Behaviorally in Response to Human-Induced Stressors." Animals 9, no. 7 (July 18, 2019): 455. http://dx.doi.org/10.3390/ani9070455.

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Understanding the impact of human activities on wildlife behavior and fitness can improve their sustainability. In a pilot study, we wanted to identify behavioral responses to anthropogenic stress in an urban species during a semi-experimental field study. We equipped eight urban hedgehogs (Erinaceus europaeus; four per sex) with bio-loggers to record their behavior before and during a mega music festival (2 × 19 days) in Treptower Park, Berlin. We used GPS (Global Positioning System) to monitor spatial behavior, VHF (Very High Frequency)-loggers to quantify daily nest utilization, and accelerometers to distinguish between different behaviors at a high resolution and to calculate daily disturbance (using Degrees of Functional Coupling). The hedgehogs showed clear behavioral differences between the pre-festival and festival phases. We found evidence supporting highly individual strategies, varying between spatial and temporal evasion of the disturbance. Averaging the responses of the individual animals or only examining one behavioral parameter masked these potentially different individual coping strategies. Using a meaningful combination of different minimal-invasive bio-logger types, we were able to show high inter-individual behavioral variance of urban hedgehogs in response to an anthropogenic disturbance, which might be a precondition to persist successfully in urban environments.

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Freeman, Robin, Ben Dean, Holly Kirk, Kerry Leonard, Richard A. Phillips, Chris M. Perrins, and Tim Guilford. "Predictive ethoinformatics reveals the complex migratory behaviour of a pelagic seabird, the Manx Shearwater." Journal of The Royal Society Interface 10, no. 84 (July 6, 2013): 20130279. http://dx.doi.org/10.1098/rsif.2013.0279.

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Understanding the behaviour of animals in the wild is fundamental to conservation efforts. Advances in bio-logging technologies have offered insights into the behaviour of animals during foraging, migration and social interaction. However, broader application of these systems has been limited by device mass, cost and longevity. Here, we use information from multiple logger types to predict individual behaviour in a highly pelagic, migratory seabird, the Manx Shearwater ( Puffinus puffinus ). Using behavioural states resolved from GPS tracking of foraging during the breeding season, we demonstrate that individual behaviours can be accurately predicted during multi-year migrations from low cost, lightweight, salt-water immersion devices. This reveals a complex pattern of migratory stopovers: some involving high proportions of foraging, and others of rest behaviour. We use this technique to examine three consecutive years of global migrations, revealing the prominence of foraging behaviour during migration and the importance of highly productive waters during migratory stopover.

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Jonsson, Jonas, Katarina Smedfors, Leif Nyholm, and Greger Thornell. "Towards Chip-Based Salinity Measurements for Small Submersibles and Biologgers." International Journal of Oceanography 2013 (November 27, 2013): 1–11. http://dx.doi.org/10.1155/2013/529674.

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Water’s salinity plays an important role in the environment. It can be determined by measuring conductivity, temperature, and depth (CTD). The corresponding sensor systems are commonly large and cumbersome. Here, a 7.5 × 3.5 mm chip, containing microstructured CTD sensor elements, has been developed. On this, 1.5 mm2 gold finger electrodes are used to measure the impedance, and thereby the conductivity of water, in the MHz frequency range. Operation at these frequencies resulted in higher sensitivities than those at sub-MHz frequencies. Up to 14 kΩ per parts per thousand salt concentration was obtained repeatedly for freshwater concentrations. This was three orders of magnitude higher than that obtained for concentrations in and above the brackish range. A platinum electrode is used to determine a set ambient temperature with an accuracy of 0.005°C. Membranes with Nichrome strain gauges responded to a pressure change of 1 bar with a change in resistance of up to 0.21 Ω. A linear fit to data over 7 bars gave a sensitivity of 0.1185 Ω/bar with an R2 of 0.9964. This indicates that the described device can be used in size-limited applications, like miniaturized submersibles, or as a bio-logger on marine animals.

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Більше джерел

Тези доповідей конференцій з теми "Bio-logger"

Viollet, Stephane, Nicolas Huloux, Julien Diperi, Jean-Marc Ingargiola, Akiko Kato, and Yan Ropert-Coudert. "Open source bio-logger for monitoring and recording inertial movement." In 2022 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL). IEEE, 2022. http://dx.doi.org/10.1109/inertial53425.2022.9787736.

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Schlichting, Alexander, Michael Shafer, and Ephrahim Garcia. "Multi-Source Energy Harvesting Schemes With Piezoelectrics and Photovoltaics on an Avian Bio-Logger Draft." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8130.

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Solar energy harvesting possesses relatively high energy and power densities when compared to other energy harvesting methods. However, solar energy harvesting applications are severely limited by diurnal cycles and weather patterns. For biological applications, such as avian bio-loggers, the subject’s activity levels and location introduce further variability into the availability of solar energy. This work focuses on the challenges associated with developing a multi-source energy harvesting solution and overall power management system for an avian bio-logger. It uses an ATmega128RFA1 microcontroller along with lithium batteries and both a solar and piezoelectric energy harvester. The power management system and microcontroller operation were tested using a solar harvester.

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Morgan, Eric R., and Michael W. Shafer. "Marine Energy Harvesting Using Magnetohydrodynamic Power Generation." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7636.

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Анотація:

Energy harvesting is widely used in terrestrial and aerial sensor applications but is conspicuously absent in the marine environment despite several possible harvesting modalities and numerous applications. One such energy harvesting modality is to use magnetohydrodynamic (MHD) power generators to directly produce electricity from flowing seawater. Fundamentally, MHD generators convert the kinetic energy of a conductive fluid directly into electricity by separating charged particles, thereby generating an electric field transverse to the direction of fluid flow and the magnetic field. The electric field is then accessed with an external circuit to provide power to a load. Since the power output from an MHD generator is linearly related to the conductivity of the flowing fluid and to the square of both the magnetic field strength and the fluid velocity, strong magnets and high fluid velocity are desirable. Thus, there are a myriad of possible MHD generator configurations available to maximize power output under various conditions and constraints. These include configurations of permanent magnets that offer localized high magnetic fields or geometries of the fluid duct that can be used to increase the fluid velocity through the magnetic field. One novel application for MHD generators is to power sensors and bio-loggers used in marine animal telemetry. The animal sensors are designed to take time-series measurements and store the data on the logger for transmission to satellite networks or human retrieval. These sensors and loggers are often battery-limited which constrains either the data fidelity or the longevity, or both. An MHD generator attached to a marine animal can help to supplement some of the sensor or bio-logger power requirements, thereby increasing sensor lifetimes and data fidelity. Thus, MHD generators will enable new research in the marine sciences, climatology, and biology, among others. The MHD generator can be positioned above the fluid boundary-layer so that the fluid flow around the animal is channeled through the MHD generator, producing electricity. In this work, we will develop some of the fundamental equations that describe the physics of an MHD generator and use them to make estimates of the potential power outputs that could be expected from various marine animals. We will also investigate several electrical configurations of the MHD to determine the most suitable MHD generator for different flow regimes. Initial studies suggest that MHD generators are viable power sources in the marine environment and can easily supplement the entire energy budget of a bio-logger under certain conditions.

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Rios, Fernando, and Stephanie Tripplet. "Portable Data Logger for Long-Time Storage of Bio-Signals Implemented with an Auto-Range Amplifier and an Analog Multiplexer." In SoutheastCon 2019. IEEE, 2019. http://dx.doi.org/10.1109/southeastcon42311.2019.9020443.

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