scholarly journals Assessment of Ultraviolet Impact on Main Pigment Content in Purple Basil (Ocimum basilicum L.) by the Spectrometric Method and Hyperspectral Images Analysis

2021 ◽  
Vol 11 (19) ◽  
pp. 8804
Author(s):  
Yuri A. Proshkin ◽  
Alexandr A. Smirnov ◽  
Natalya A. Semenova ◽  
Alexey S. Dorokhov ◽  
Dmitry A. Burynin ◽  
...  
Keyword(s):  
Leaf Surface ◽  
Ocimum Basilicum ◽  
Hyperspectral Images ◽  
Shielding Effect ◽  
Spectrometric Method ◽  
Weak Correlation ◽  
General Plan ◽  
Vegetative Indices ◽  
The Impact ◽  
Uv C

This research is aimed at the assessing the impact of the ultraviolet radiation in the A, B, and C ranges (as additives to the main light) on general plan condition, the stress experienced by them, the pigment concentration in the leaves and leaf reflective characteristics. Under studying, there were the photo-protective reactions of the purple variety basil plants. The plants were grown in plastic pots in a phyto-chamber equipped with an automatic microclimate system. The phyto-chamber was divided into four compartments where, in addition to the main lighting, there were installed the additional LEDs emitting their radiation in the ranges UV-A, UV-B, and UV-C. Plant reactions were evaluated by the contents of the main pigments as detected by the spectrometric method. Then correlations were revealed between those values and the vegetative indices obtained based on the hyperspectral images. A strong correlation (R2 ˃ 0.83) was observed between the values of the vegetative indices ARI and mARI and the anthocyanins concentration in basil leaves. A weak correlation (R2 = 0.0479) was found between the ARI and mARI values and the carotenoids index CRI700, which is attributed to the shielding effect of the anthocyanins. Deviations in the results are influenced by leaf surface unevenness, its thickness and density. Additional research is needed including developing reflection indices taking into account the shielding effect of the purple pigments.

scholarly journals Self-managing socialism and urban planning: The case study of general plan of Belgrade 1972

2018 ◽  
Vol 10 (1) ◽  
pp. 81-94
Author(s):  
Jelena Radosavljević
Keyword(s):  
Urban Planning ◽  
Planning Process ◽  
Local Level ◽  
Institutional Arrangements ◽  
Planning Practice ◽  
General Plan ◽  
Managing System ◽  
The Impact

This paper aims to open up a discussion about relations between former Yugoslavia's socialism and planning practice resulting from self-managing system established in early 1950s. Although this system was applied through a top-down approach, it implied, at least allegedly, coordination, integration and democratic harmonisation of particular interests with common and general ones on local level. The paper will briefly review the history and concept of socialist ideology and consider the impact that it had on institutional arrangements evolution and planning practice in Serbia. It will then touch on the role of ideology for urban planning process at the local level, understanding self-managing planning principles, their benefits, role and significance in planning practice.

Preliminary evaluation of the impact of preharvest UV-C on lettuce: potential for the control of Xanthomonas campestris

2020 ◽  
pp. 387-394
Author(s):  
O. Nicolas ◽  
M.T. Charles ◽  
D. Chabot ◽  
J. Aarrouf ◽  
S. Jenni ◽  
...  
Keyword(s):  
Xanthomonas Campestris ◽  
Preliminary Evaluation ◽  
The Impact ◽  
Uv C

scholarly journals Shielding effect of radiation dose reduction fiber during the use of C-arm fluoroscopy: a phantom study

2020 ◽  
Vol 61 (5) ◽  
pp. 705-711
Author(s):  
Hyemi Cha ◽  
Kisung Lee ◽  
Moon Seok Park ◽  
Kyoung Min Lee ◽  
Kyeyoung Cho ◽  
...  
Keyword(s):  
Dose Reduction ◽  
Shielding Effect ◽  
Whole Body ◽  
Radiation Doses ◽  
Modulation Transfer ◽  
Contrast Resolution ◽  
Front Position ◽  
Radiosensitive Organs ◽  
The Impact

ABSTRACT This study evaluated the shielding effect of a newly developed dose-reduction fiber (DRF) made from barium sulfate, in terms of radiation doses delivered to patients’ radiosensitive organs and operator during C-arm fluoroscopy and its impact on the quality of images. A C-arm fluoroscopy unit was placed beside a whole-body phantom. Radiophotoluminescent glass dosimeters were attached to the back and front of the whole-body phantom at 20 cm intervals. Radiation doses were measured without DRF and with it applied to the back (position 1), front (position 2) or both sides (position 3) of the phantom. To investigate the impact of DRF on the quality of fluoroscopic images, step-wedge and modulation transfer function phantoms were used. The absorbed radiation doses to the back of the phantom significantly decreased by 25.3–88.8% after applying DRF to positions 1 and 3. The absorbed radiation doses to the front of the phantom significantly decreased by 55.3–93.6% after applying DRF to positions 2 and 3. The contrast resolution values for each adjacent step area fell in the range 0.0119–0.0209, 0.0128–0.0271, 0.0135–0.0339 and 0.0152–0.0339 without and with DRF applied to positions 1, 2 and 3, respectively. The investigated DRF effectively reduces absorbed radiation doses to patients and operators without decreasing the quality of C-arm fluoroscopic images. Therefore, routine clinical use of the DRF is recommended during the use of C-arm fluoroscopy.

scholarly journals Assessing the impact of non-thermal and thermal treatment on the shelf-life of onion juice

2019 ◽  
Vol 36 (No. 6) ◽  
pp. 480-486 ◽  
Author(s):  
Hande Demir ◽  
Mustafa Kemal Yıldız ◽  
İsmail Becerikli ◽  
Sevcan Unluturk ◽  
Zehra Kaya
Keyword(s):  
Heat Treatment ◽  
Shelf Life ◽  
Colour Change ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Incident Intensity ◽  
Physicochemical Changes ◽  
Conventional Heat Treatment ◽  
The Impact ◽  
Uv C

Onion (Allium cepa L.) juice is a marinating agent for meat and fish marination and readily usable sauce for any meal that has onion in its formulation. This study aims to assess the microbiological and physicochemical changes in the onion juice processed by UV-C irradiation (0.5 mm sample depth, 30 min exposure time, 7.5 mW/cm<sup>2</sup> UV incident intensity) and conventional heat treatment (74.5°C, 12 min) during its storage. Microbiological results showed processing by UV-C irradiation or heat treatment under optimum conditions extended the microbial shelf-life of untreated onion juice by minimum 6-times. Total colour change of heat-treated samples was lower than that of untreated and UV-C treated samples for 12 weeks. Also, pH, total titratable acidity, total soluble solids content, turbidity, NEBI and total phenolic content were monitored for 12 weeks. The results of this study will form scientific infrastructure for onion juice manufacturers to decide on the processing method with respect to its shelf-life.

scholarly journals Successive Harvests Affect Yield, Quality and Metabolic Profile of Sweet Basil (Ocimum basilicum L.)

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 830 ◽  
Author(s):  
Giandomenico Corrado ◽  
Pasquale Chiaiese ◽  
Luigi Lucini ◽  
Begoña Miras-Moreno ◽  
Giuseppe Colla ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutrient Use Efficiency ◽  
Quality Attributes ◽  
Ocimum Basilicum ◽  
Leafy Vegetables ◽  
Nitrate Content ◽  
Fresh Market ◽  
Sweet Basil ◽  
Use Efficiency ◽  
The Impact

Sweet basil (Ocimum basilicum L.) is an aromatic, tender leafy green cultivated for the fresh market and industrial processing. Like many other leafy vegetables, this species can be harvested more than once to increase productivity. Although the cut-and-come-again (CC) harvest strategy is widespread in basil, not much is known about the effect of the cut. In this work, we examined differences in biomass, physiology, nutrient use efficiency and antioxidant capacity of basil leaves from two successive harvests. Moreover, we also performed an untargeted metabolomics analysis to reveal variations in the leaf metabolite profile. The data indicated that the cut affected many of the parameters under investigation, including a modest reduction of yield (−20%), of nitrogen use efficiency (−21%) and of some quality attributes such as the antioxidant capacity (−16%) and the nitrate content in leaves (+48%). Moreover, leaves of successive cuts displayed a significant variation of the profile of bioactive compounds, characterized by an overall decrease of phenylpropanoids and an increase in terpenoids. Our data revealed the impact of CC harvesting strategy in basil, and that this strategy offers the possibility to yield leaves with different metabolomics profiles and quality attributes.

Ablation and mechanical investigation of heat vulcanizing silicone rubber (HVSR) composite containing carbon fibers

2017 ◽  
Vol 37 (5) ◽  
pp. 521-528 ◽  
Author(s):  
Yanhui Liu ◽  
Jingyu Su ◽  
Zhengshuai Yin ◽  
Yong Li ◽  
Ye Zhi ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Silicone Rubber ◽  
Ablation Rate ◽  
Shielding Effect ◽  
Characterization Methods ◽  
Ablation Mechanism ◽  
Back Face ◽  
The Matrix ◽  
The Impact ◽  
Face Temperature

Abstract In this study, heat vulcanizing silicone rubber (HVSR) composites were prepared and the impact of the addition of carbon fibers (CFs) on the mechanical and ablation properties of the composite was demonstrated. It was found that with increasing content of CFs, the tensile property and the hardness of the composite increased significantly. The back-face temperature, the ablation rate and the ablation mechanism of the composite were discussed based on the data derived from several characterization methods, including oxygen-acetylene ablation device, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR). Along with the increasing of the content of CFs, the mass and linear ablation rates both decreased, but the back-face temperature increased. The interaction between ablation layer and the composite became intense due to the addition of the CFs, which led to the difficult peel-off of the ablation layer. Four layers can be formed after the oxygen-acetylene ablation of the composite including the surface layer, the carbonization layer, the pyrolysis layer and the matrix layer. The ablation mechanism was also proposed. It mainly involves the carbonization of the composite, the ceramization of SiC and the shielding effect of the ablated layer.

The Analysis of Induced Voltage from AC Submarine Cable to Adjacent Communication Cable

2014 ◽  
Vol 960-961 ◽  
pp. 856-862
Author(s):  
Yang Wang ◽  
Guang Zhou Zhang ◽  
Guo Zhi Chen ◽  
Xiao Qin Zhang ◽  
Xin Long Zheng ◽  
...  
Keyword(s):  
Magnetic Induction ◽  
Normal Operation ◽  
Shielding Effect ◽  
Submarine Cable ◽  
Induced Voltage ◽  
Allowable Range ◽  
Submarine Cables ◽  
The Impact ◽  
Horizontal Arrangement

The induced voltage generated by AC submarine cables would effect the normal operation of communication cables nearby. The paper calculated the induced voltage generated by AC submarine cable according to formula and procedures related to magnetic induction. The maximum parallel length between submarine cable and communications table was calculated under horizontal arrangement, and shielding effect was taken into account to the impact of the results. The causes of various induced voltage on communication cable were analysed under normal operation and various fault conditions. The results show that the induced voltage on communication cable is proportional to the parallel length and inversely proportional to parallel spacing. When the parallel length does not exceed a certain value, the induced voltage is in the allowable range and will not affect the normal operation of the communication cable.

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