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Effects of temperature and body mass on soil communities / Temperatur- und Körpermasseneinfluß auf BodengemeinschaftenLang, Birgit 23 November 2012 (has links)
No description available.
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加齢に伴う光合成速度と暗呼吸速度の変化がスギ人工林の総生産量及び葉群呼吸消費量の推定に及ぼす影響宮浦, 真澄, KATSUNO-MIYAURA, Masumi, 萩原, 秋男, HAGIHARA, Akio, 穂積, 和夫, HOZUMI, Kazuo 12 1900 (has links) (PDF)
農林水産研究情報センターで作成したPDFファイルを使用している。
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Záznamník EKG dat / ECG data recorderHruškovský, Antonín January 2017 (has links)
The master thesis deals with the issue of long-term ECG recording, used in medicine for monitoring of cardiac anomalies. Author focuses on explaning the general concepts in the first part. Author describes measuring methods and issues associated with measuring. Comparison of existing devices and design of solution with own features are in next chapter. Next is comparison and selecting of formats for recording measured data and description of device connectivity. In next chapter author focuses on hardware design and implementation of device. After that author describes software solution design for microcontroller, Bluetooth module and smartphone. Author introduces possible improvements for future generation of the device and then describes results of testing at the end of this work.
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Evaluation of cold storage potential and shelf-life of new 'hass' type avocado selectionsMachipyane, Pheladi Bridgette January 2017 (has links)
Thesis (M.Sc. Agriculture (Horticultrure)) -- University of Limpopo, 2017 / The current South African ‘Hass’ type avocado cultivars are inadequate to enhance competitiveness, cultivar diversity and profitability. In an effort to ensure competitiveness and maintain sustainability, the Agricultural Research CouncilInstitute for Tropical and Subtropical Crops (ARC-ITSC) as one the South African Avocado Industry’s (SAAI) main stakeholder, has bred and selected new superior ‘Hass’ type avocado selections. However, the cold storage potential and associated physico-chemical ripening properties of these selections (‘Jalna’, ‘OA 184’ and ‘Balboa’) have not been documented. Therefore, the objective of this study was to evaluate the effect of cold storage on internal and external physico-chemical ripening variables of the new ‘Hass’ type avocado selections. New ‘Hass’ type avocado fruit maturity was evaluated using moisture content, thereafter, harvested, sorted, graded and stored under two temperature regimes (2.0°C and 5.5°C) for 28 days to simulate export conditions. The experiment was a completely randomised factorial design with three treatment factors; temperature regimes (2.0°C and 5.5°C), days to ripening and ‘Hass’ type avocado selections fruit and control (commercial ‘Hass’) replicated three times. After withdrawal from cold storage, fruit were ripened at ambient temperature and evaluated for electrical conductivity, external chilling injury, fruit water loss, skin colour change, ripening percentage, firmness, respiration rate and seed:fruit weight ratio. Results indicated that treatment factors had no significant effect on moisture content (P=0.733) and chilling injury (P=0.776). Treatment factors had a significant effect on electrical conductivity (P=0.004), skin colour parameters; eye colour (P<0.001), hue angle (P<0.001), lightness (P=0.011) and chroma (P=0.042). Selection ‘Jalna’ fruit started changing colour whilst in storage (2.0°C and 5.5°C). Furthermore, ‘Hass’ type avocado selection fruit followed a declining pattern for lightness, chroma and hue angle in agreement with commercial ‘Hass’. Moreover, results indicated that treatment factors had a significant effect (P<0.001) on respiration rate, fruit firmness, ripening percentage and seed:fruit weight ratio. Selection ‘Jalna’ and ‘OA 184’ desynchronised mesocarp softening with exocarp due to genetically non-softening exocarp. Treatment factors had no significant effect (P=0.998) on fruit water loss during ripening. Selection ‘OA 184’ fruit showed export potential due to its good storage, ripening physico-chemical and shelf-life properties. Studies on cold sterilisation would add more value on generated scientific
information, as such would enable the SAAI to gain access to high paying export markets. In addition, the selections should be planted and evaluated in other avocado producing region
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NONINVASIVE MEASUREMENT OF HEARTRATE, RESPIRATORY RATE, AND BLOOD OXYGENATION THROUGH WEARABLE DEVICESJason David Ummel (10724028) 29 April 2021 (has links)
<p>The last two decades have shown a boom in the field of
wearable sensing technology. Particularly in the consumer industry, growing
trends towards personalized health have pushed new devices to report many vital
signs, with a demand for high accuracy and reliability. The most common
technique used to gather these vitals is photoplethysmography or PPG. PPG devices
are ideal for wearable applications as they are simple, power-efficient, and
can be implemented on almost any area of the body. Traditionally PPGs were
utilized for capturing just heart rate, however, recent advancements in
hardware and digital processing have led to other metrics including respiratory
rate (RR) and peripheral oxygen saturation (SpO2), to be reported as well. Our
research investigates the potential for wearable devices to be used for
outpatient apnea monitoring, and particularly the ability to detect opioid
misuse resulting in respiratory depression. Ultimately, the long-term goal of
this work is to develop a wearable device that can be used in the
rehabilitation process to ensure both accountability and safety of the wearer.
This document details contributions towards this goal through the design,
development, and evaluation of a device called “Kick Ring”. Primarily, we
investigate the ability of Kick Ring to record heartrate (HR), RR, and SpO2. Moreover,
we show that the device can calculate RR in real time and can provide an
immediate indication of abnormal events such as respiratory depression. Finally,
we explore a novel method for reporting apnea events through the use of several
PPG characteristics. Kick Ring reliably gathers respiratory metrics and offers
a combination of features that does not exist in the current wearables space.
These advancements will help to move the field forward, and eventually aid in
early detection of life-threatening events.</p>
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