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  • Springer  (18)
  • MDPI Publishing  (8)
  • American Chemical Society (ACS)  (6)
  • Hindawi
  • Molecular Diversity Preservation International (MDPI)
  • 2015-2019  (26)
  • 1970-1974  (8)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 62 (1974), S. 915-920 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mikrogrammengen Fe, Co, Cu und Zn können in wäßrigen Lösungen an Zinn(IV)hydroxidniederschlägen bei pH 4–8 zu mehr als 95% angereichert werden. Sn kann als Bromid leicht abgedampft werden. Dieses Trennverfahren wurde zur emissionsspektrographischen Bestimmung geringer ppm-Verunreinigungen in hochgereinigtem Magnesiummetall angewendet.
    Notes: Summary Microgram quantities of iron, cobalt, copper, and zinc in aqueous solutions can be collected on tin(IV) hydroxide precipitates in greater than 95% yields over the range of pH 4 to 8. Tin is easily removed by evaporation as bromide. This separation technique has been applied to the emission spectrographic determination of low ppm level impurities in high-purity magnesium metal.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein Versuch zur automatischen Strukturaufklärung organischer Verbindungen durch kernmagnetische Resonanz wurde in folgender Weise unternommen: Zunächst wurden Teilstrukturen ausgewählt, die sich zum Aufbau einer Molekülstruktur eignen. Ein an das Kernresonanzspektrometer angeschlossener Computer liefert die Information über Art und Anzahl der Teilstrukturen. Auf der Grundlage dieser Teilstrukturen und der Molekülformel liefert ein Struktur-Aufbauprogramm die Molekülstruktur. Für 24 nach diesem Verfahren geprüfte, bekannte Verbindungen wurde in 9 Fällen ein eindeutig korrektes Ergebnis erhalten; in 15 Fällen lieferte der Computer mehrere Antworten, darunter auch die jeweils richtige.
    Notes: Summary An attempt to the automated structure elucidation of organic compound was made chiefly by use of NMR as follows: Partial structures which are suitable to construct a molecular structure are selected beforehand. Spectral information afforded by the computer tied into NMR spectrometer designates the number and kind of the partial structures. Then structure building up program constructs the molecular structure(s) based on these designated partial structures and molecular formula. In 24 known compounds examined by this method, one correct structure was given for 9 compounds, and multiple number of answers including an appropriate structure were given for 15 compounds.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of oceanography 28 (1972), S. 18-25 
    ISSN: 1573-868X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract This paper presents a technique for quantitative measurements and isotherm indications of temperature distributions of sea surface by means of infrared imagery obtained by AGA-Thermovision. Reading of the sea surface temperature from the infrared imagery is performed by a photographic densitometer and isotherm indication is performed by a color densitometer. Characteristics of this technique are described with several examples.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of oceanography 29 (1973), S. 8-15 
    ISSN: 1573-868X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract This paper presents a system of the line scanner with InSb detector of filter band 2.0–5.5 microns, for obtaining infrared imagery from an aero-plane. Since its scanning sector is as large as 80 degrees, wide thermal imagery can easily obtained from comparatively low altitude. Displaying techniques of thermal pattern of sea surface are also discussed. All data were stocked in the four-channel data recorder during measurements and analysed at the laboratory after landing. Colored imagery and contoured imagery were made from the original thermal imagery by using computer.
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2015-02-26
    Description: Time spent walking and relaxing in a forest environment (“forest bathing” or “forest therapy”) has well demonstrated anti-stress effects in healthy adults, but benefits for ill or at-risk populations have not been reported. The present study assessed the physiological and psychological effects of forest therapy (relaxation and stress management activity in the forest) on middle-aged males with high-normal blood pressure. Blood pressure and several physiological and psychological indices of stress were measured the day before and approximately 2 h following forest therapy. Both pre- and post-treatment measures were conducted at the same time of day to avoid circadian influences. Systolic and diastolic blood pressure (BP), urinary adrenaline, and serum cortisol were all significantly lower than baseline following forest therapy (p 〈 0.05). Subjects reported feeling significantly more “relaxed” and “natural” according to the Semantic Differential (SD) method. Profile of Mood State (POMS) negative mood subscale scores for “tension-anxiety,” “confusion,” and “anger-hostility,” as well as the Total Mood Disturbance (TMD) score were significantly lower following forest therapy. These results highlight that forest is a promising treatment strategy to reduce blood pressure into the optimal range and possibly prevent progression to clinical hypertension in middle-aged males with high-normal blood pressure.
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI Publishing
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  • 6
    Publication Date: 2016-04-01
    Description: The Journal of Organic Chemistry DOI: 10.1021/acs.joc.6b00142
    Print ISSN: 0022-3263
    Electronic ISSN: 1520-6904
    Topics: Chemistry and Pharmacology
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  • 7
    Publication Date: 2015-10-27
    Description: We describe a sensitive plant monitoring system by the detection of the bioelectric potentials in plants with boron-doped diamond (BDD) electrodes. For sensor electrodes, we used commercially available BDD, Ag, and Pt plate electrodes. We tested this approach on a hybrid species in the genus Opuntia (potted) and three different trees (ground-planted) at different places in Japan. For the Opuntia, we artificially induced bioelectric potential changes by the surface potential using the fingers. We detected substantial changes in bioelectric potentials through all electrodes during finger touches on the surface of potted Opuntia hybrid plants, although the BDD electrodes were several times more sensitive to bioelectric potential change compared to the other electrodes. Similarly for ground-planted trees, we found that both BDD and Pt electrodes detected bioelectric potential change induced by changing environmental factors (temperature and humidity) for months without replacing/removing/changing electrodes, BDD electrodes were 5–10 times more sensitive in this detection than Pt electrodes. Given these results, we conclude that BDD electrodes on live plant tissue were able to consistently detect bioelectrical potential changes in plants.
    Electronic ISSN: 1424-8220
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Published by MDPI Publishing
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  • 8
    Publication Date: 2015-04-08
    Description: The organic thin film solar cells (OTFSCs) have been successfully fabricated using PCDTBT : PC71BM with different mixing ratios (1 : 1 to 1 : 8) and the influence of hole transport layer thickness (PEDOT : PSS). The active layers with different mixing ratios of PCDTBT : PC71BM have been fabricated using o-dichlorobenzene (o-DCB). The surface morphology of the active layers and PEDOT : PSS layer with different thicknesses were characterized by AFM analysis. Here, we report that the OTFSCs with high performance have been optimized with 1 : 4 ratios of PCDTBT : PC71BM. The power conversion efficiency (PCE = 5.17%) of the solar cells was significantly improved by changing thickness of PEDOT : PSS layer. The thickness of the PEDOT : PSS layer was found to be of significant importance; the thickness of the PEDOT : PSS layer at 45 nm (higher spin speed 5000 rpm) shows higher short circuit current density () and lower series resistance () and higher PCE.
    Print ISSN: 1110-662X
    Electronic ISSN: 1687-529X
    Topics: Electrical Engineering, Measurement and Control Technology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Hindawi
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  • 9
    Publication Date: 2015-12-02
    Description: The natural environment is increasingly recognized as an effective counter to urban stress, and “Forest Therapy” has recently attracted attention as a relaxation and stress management activity with demonstrated clinical efficacy. The present study assessed the physiological and psychological effects of a forest therapy program on middle-aged females. Seventeen Japanese females (62.2 ± 9.4 years; mean ± standard deviation) participated in this experiment. Pulse rate, salivary cortisol level, and psychological indices were measured on the day before forest therapy and on the forest therapy day. Pulse rate and salivary cortisol were significantly lower than baseline following forest therapy, indicating that subjects were in a physiologically relaxed state. Subjects reported feeling significantly more “comfortable,” “relaxed,” and “natural” according to the semantic differential (SD) method. The Profile of Mood State (POMS) negative mood subscale score for “tension–anxiety” was significantly lower, while that for “vigor” was significantly higher following forest therapy. Our study revealed that forest therapy elicited a significant (1) decrease in pulse rate, (2) decrease in salivary cortisol levels, (3) increase in positive feelings, and (4) decrease in negative feelings. In conclusion, there are substantial physiological and psychological benefits of forest therapy on middle-aged females.
    Print ISSN: 1661-7827
    Electronic ISSN: 1660-4601
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Published by MDPI Publishing
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  • 10
    Publication Date: 2015-03-26
    Description: The power amplifier (PA) is the most power-hungry component in a wireless base station transmitter, and reducing the peak-to-average power ratio (PAPR) of wireless signals is an important issue for its effective use. In this paper, we focus on a field-programmable gate array (FPGA) implementation of the peak cancellation (PC) technique, which is known as the simplest method for PAPR reduction. The design issue of effective peak-cancelling pulses under the constraint on the out-of-band emission is addressed. In order to reduce its hardware complexity, a novel approach for generating peak-cancelling pulses is also presented. The experimental results based on long-term evolution (LTE)/LTE-Advanced and multi-band Wideband Code Division Multiple Access (WCDMA) signals demonstrate the validity of the proposed scheme. It has been shown that the proposed PC scheme can achieve lower in-band distortion than the conventional PC with an acceptable loss in out-of-band performance. Our study also includes mapping the signal processing methods onto a Xilinx virtex-7 FPGA device running at 245.76 MHz and addresses the resource utilization and the hardware design in detail.
    Print ISSN: 1687-1472
    Electronic ISSN: 1687-1499
    Topics: Electrical Engineering, Measurement and Control Technology , Computer Science
    Published by Springer
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