46 research outputs found
Effect of temperature on the modal parameters of continuous rigid frame bridge
No full textThe temperature effect on modal parameters such as natural frequencies, mode shapes, and damping ratios is critical for precisely determining the health of a bridge. This is the first study investigating how temperature affects the modal properties of a large continuous rigid-frame bridge. The vibration experiment data was collected and analyzed 39 times within a year's maximum and minimum temperatures. The frequency has been analyzed using the Fast Fourier transform (FFT) algorithm. Mode shape and damping ratio were analyzed using MATLAB software using the covariance-driven stochastic subspace identification method (SSI-COV) and the logarithmic decrement method. Due to the unique shape of the bridge, numerical simulations were performed using Midas Civil software to validate the results. Moreover, the correlation coefficients of frequencies and damping ratios at different temperatures have been evaluated by this observation, which will assist in identifying the large continuous rigid frame bridge's health at various temperatures
Anti Carcinogenic Effect of Lemon and Lemon Products in Cancer Therapy A Summary of the Evidence
No full textLemon is a popular fruit that includes many helpful nutrients for humans. Accumulated proof from research shows that nutritional intake of lemon and lemon products e.g. lemon peel, lemon grass oil, lemon extract appears to be inversely linked to the reduced danger of numerous infectious illnesses and cancers. These helpful impacts of the lemon will be attributed to their chemical constituents in particular. Lemon contains a range of important nutrients such as vitamin C, vitamin A, carotenes of different kinds, as well as several non nutrient phytochemicals as well as categories of flavonoid, coumarin, glucarate, monoterpenes, triterpenes and phenolic acids. There are many compounds distinctive to lemon that are comparatively uncommon in other plants, their individual components such as sesqui terpene isointermedeol, geraniol, terpene, quercetin and eriocitrin have also shown anticancer activity against various cell lines. This review regularly summarized lemons anticarcinogenic effect in cancer therapy along with the fundamental molecular mechanisms needed to further explore the more efficient use of lemon peel, lemon grass oil, lemon extract. Mohammad Asadul Habib | Kawsar Hossen | Md. Al Amin "Anti-Carcinogenic Effect of Lemon & Lemon Products in Cancer Therapy: A Summary of the Evidence" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-6 , October 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29359.pd
Allelopathic activity and identification of allelopathic compounds from Bangladeshi medicinal plants for the development of bioherbicides to control weeds
No full textEffects of phosphorus fertilization on hybrid varieties of mungbean [Vigna radiata (L.) Wilczek] in a salinity prone area of the subtropics
No full textA field experiment was conducted comprising two varieties of mungbean, BARI
Mung-5 (V1) and BARI Mung-6 (V2), and five levels of phosphorus fertilizer:
triple super phosphate [Ca(H2PO4)] viz. T1 (control), T2 (42.5 kg P ha−1), T3
(85 kg P ha−1), T4 (127.5 kg P ha−1), and T5 (170 kg P ha−1). The experiment
was organized in a randomized complete block design with three replications.
V1 produced the highest number of pods per plant (7.65), whereas the maximum
1,000-seed weight (49 g) was produced by V2. The maximum plant height (30.89
cm), number of branches per plant (8.55), number of leaves per plant (19.05),
number of pods per plant (10.25), pod length (8.95 cm), number of seeds per
pod (9.11), 1,000-seed weight (48.17 g), and yield (1.05 t ha−1) were obtained
from the T4 treatment. The interaction of phosphorus levels and varieties had a
considerable effect on the growth, yield, and yield attributes of mungbean. The
highest number of leaves (20.44) and number of pods (10.39) were obtained from
V1 when 127.5 kg P ha−1 (T4) was applied, whereas the maximum number of
seeds per pod (9.25) and maximum pod length (9.09 cm) were obtained when
85 kg P ha−1 and 42.5 kg P ha−1, respectively, were used. The highest number
of branches per plant (8.87), 1,000-seed weight (52.83 g), and the maximum
seed yield (1.14 t ha−1) were achieved from the treatment V2T4 owing to the
interactive effect of phosphorus dose and mungbean variet
Allelopathic activity and identification of allelopathic compounds from Bangladeshi medicinal plants for the development of bioherbicides to control weeds
No full textEhime University (愛媛大学)博士(農学)thesi
Evaluation of the Allelopathic Activity of Albizia procera (Roxb.) Benth. as a Potential Source of Bioherbicide to Control Weeds
No full textAgricultural production depends heavily on the application of synthetic herbicides. Using these herbicides results in the development of herbicide-resistant weeds, poses hazards to human and animal health, and pollutes the environment. To solve these problems, developing and using bioherbicides must be increased. Although different uses of Albizia procera have been well reported, its allelopathic activity against weeds and crop species has not. Hence, we evaluated the allelopathic activity of the A. procera plant and isolated its allelopathic compounds. Extracts of A. procera significantly suppressed the seedling growth of the tested species (cabbage, alfalfa, lettuce, barnyard grass, timothy, and Italian ryegrass). The seedling growth decreased with increasing extract concentrations. The concentrations required for 50% growth inhibition (I50 value) of the tested plants were 0.0225–0.4935 mg/mL. The A. procera extracts were separated using different column chromatography, and two active fractions (AP-5 and AP-7) were isolated. Cress seedling growth was completely restricted by fraction AP-5, and fraction AP-7 restricted the cress shoots to 83.10% and roots to 85.65% of the control treatment. The findings of this study indicate that A. procera extracts have allelopathic activity and these fractions might contribute to the activity
Determination of allelopathic properties of Acacia catechu (L.f.) Willd.
No full textPlants possessing allelopathic potential could be used as a source of bio-herbicide to help decrease the use of synthetic herbicides. Acacia catechu (L.f.) Willd., a deciduous tree from the Mimosaceae family, has been reported to have medicinal properties. However, there have been no reports on the allelopathy of this tree. Therefore, the leaf extracts of A. catechu were examined for allelopathic potential using six concentrations: 0.001, 0.003, 0.01, 0.03, 0.1, and 0.3 g dry weight equivalent extract mL-1. The aqueous methanol extracts of A. catechu significantly suppressed the seedling growth of six test plants such as alfalfa, cress, lettuce, barnyard grass, Italian ryegrass, and timothy. The extracts inhibited the six test plants in a concentration-dependent manner. The shoot and root growth of all the test plant species were completely inhibited from the concentration of 0.3 g of dry weight equivalent extract mL-1, except the shoot growth of barnyard grass. Concentrations needed for 50% growth inhibition (I50 values) ranged from 0.004 to 0.043 g dry weight equivalent extract mL-1 for shoot growth, and 0.003 to 0.019 g dry weight equivalent extract mL-1 for root growth. Moreover, the I50 values indicated that the root growth of all the test plants was more susceptible to the A. catechu extracts than the shoot growth. The inhibitory effects of the extracts of A. catechu suggest that the extracts may contain allelopathic potential and, therefore, may be a potential candidate for the isolation and characterization of allelochemicals to develop an ecofriendly bio-herbicide
Response of Transplant Aman Rice Varieties to Planting Spacing
No full textThe experiment was conducted at the Field Laboratory of the Department of Agriculture, Noakhali Science and Technology University (NSTU), Sonapur, Noakhali, during July 2017 to December 2017 to study the effect of variety and spacing on yield performance of transplant aman rice. The experiment consisted of three varieties viz. BINA dhan7, BRRI dhan56 and BRRI dhan71 and four spacings viz. 25 cm × 15 cm, 25 cm × 10 cm, 20 cm × 15 cm and 20 cm × 10 cm. The experiment was laid out in a randomized complete block design (RCBD) with three replications. In case of variety, the highest grain yield (4.502 t ha-1) was obtained from BRRI dhan71 and the lowest grain yield (4.313 t ha-1) was obtained from BINA dhan7. In case of spacing, the highest grain yield (4.701 t ha-1) was obtained from 20 cm × 10 cm spacing and the lowest grain yield (4.146 t ha-1) was obtained from 25 cm × 10 cm spacing. In case of interaction between variety and spacing, the highest grain yield (4.850 t ha-1) was obtained from the interaction of BRRI dhan71 at 20 cm × 10 cm spacing and the lowest grain yield (3.963 t ha-1) was from BINA dhan7 at 20 cm × 15 cm spacing. The study also found that among all three varieties and four spacings used in this experiment, grain yield were not significantly influenced by the interaction of variety and spacing. [Fundam Appl Agric 2018; 3(3.000): 531-536
Application of Python-OpenCV to detect contour of shapes and colour of a real image
No full textAbstract: OpenCV-Python has found its use in various fields during the course of its development, especially in the shape and colour detection of an actual image. It is more reliable to make a better and faster decision. So, OpenCV and Python are increasingly finding their application in the shape and colour detection of the images. In this following work, we will focus on how to detect the shapes and colour of a binary image by using Python 3.8, OpenCV 4.5, and Numpy 1.19.3 resources. This research is investigated in two steps process. Firstly, the image has been processed to detect the various shapes and colors of an image's specific shape. Secondly, catching the colour of an actual image by using our model.
Keywords: OpenCV, Python, Numpy, Computer vision, shape and colour detection.
Title: Application of Python-OpenCV to detect contour of shapes and colour of a real image
Author: Mohammed Khalid Hossen, Sayed Mashequl Bari, Partho Protim Barman, Rana Roy, Pranajit Kumar Das
International Journal of Novel Research in Computer Science and Software Engineering
ISSN 2394-7314
Vol. 9, Issue 2, May 2022 - August 2022
Page No: 20-25
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 24-May-2022
DOI: https://doi.org/10.5281/zenodo.6576264
Paper Download Link (Publisher Website):
https://www.noveltyjournals.com/upload/paper/Application%20of%20Python-24052022-3.pdfInternational Journal of Novel Research in Computer Science and Software Engineering, ISSN 2394-7314, Novelty Journals (Publisher), Website: www.noveltyjournals.co
Three Active Phytotoxic Compounds from the Leaves of <i>Albizia richardiana</i> (Voigt.) King and Prain for the Development of Bioherbicides to Control Weeds
No full textThe global population is increasing day by day. To meet the food demand for such a huge number of people, crop production must increase without damaging the environment, and to prevent synthetic chemical herbicides from polluting the environment, controlling weeds using bioherbicides is essential. Accordingly, using phytotoxic substances obtained from plants for biological weed management has attracted attention. The plant Albizia richardiana possesses phytotoxic compounds that have been previously recorded. Hence, we have conducted this research to characterize more phytotoxic compounds in Albizia richardiana. Aqueous methanolic extracts of Albizia richardiana plant significantly restricted the growth of the examined plants lettuce and Italian ryegrass in a species- and concentration-dependent manner. Three active phytotoxic compounds were isolated through various chromatographic methods and identified as compound 1, 2, and 3. Compound 3 exhibited stronger phytotoxic potentials than the other two compounds and significantly suppressed the growth of Lepidium sativum (cress). The concentration of the compounds required for 50% growth reduction (I50 value) of the Lepidium sativum seedlings ranged between 0.0827 to 0.4133 mg/mL. The results suggest that these three phytotoxic compounds might contribute to the allelopathic potential of Albizia richardiana
