scholarly journals Biomonitoring of Pollution by Microalgae Community in Aquatic System with Special Reference to Water Quality of River Kolong, Nagaon, Assam, India

2014 ◽  
Vol 2 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Bharat Banti Buragohain ◽  
Farishta Yasmin
Keyword(s):  
Algal Community ◽  
Algal Flora ◽  
Environment Pollution ◽  
Safe Drinking Water ◽  
Chemical Fertilizers ◽  
Initial Stage ◽  
Rivers And Streams ◽  
Present Study Attempt ◽  
Day By Day

With growing urbanization and industrialization India faces the challenge of providing clean and safe drinking water. In the name of economic growth most rivers and streams are turning into sewers. Pollution effect is equally damaging both biotic and abiotic components. Microalgae play an interesting role in forecasting changing environment. Pollution in aquatic environment like changing pH; addition of oil, heavy metals; increase of organic matter and chemical fertilizers can be traced by studying algal community. Abundant growth of particular algae, drastic change in species diversity and depletion of long inhabitant algal flora indicates the pollution in a very initial stage. In the present study, attempt has been made to point out some indicator algae of Kolong River which is getting polluted day by day and in placed among the 71 most polluted stretch of river in the country. In our investigation, we have found microalgae mainly from groups Chlorophyceae, Cyanophyceae and Desmidiaceae which can be identified as indicator species in biomonitoring purpose.DOI: http://dx.doi.org/10.3126/ijasbt.v2i1.9345Int J Appl Sci Biotechnol, Vol 2(1): 45-49

scholarly journals Synergetic Use of Sentinel-1 and Sentinel-2 Data for Soil Moisture Mapping at Plot Scale

2018 ◽  
Vol 10 (8) ◽  
pp. 1285 ◽  
Author(s):  
Reza Attarzadeh ◽  
Jalal Amini ◽  
Claudia Notarnicola ◽  
Felix Greifeneder
Keyword(s):  
Soil Moisture ◽  
Optical Data ◽  
Estimation Accuracy ◽  
Support Vector ◽  
Practical Applications ◽  
Initial Stage ◽  
Object Based ◽  
Single Polarization ◽  
Selection Of

This paper presents an approach for retrieval of soil moisture content (SMC) by coupling single polarization C-band synthetic aperture radar (SAR) and optical data at the plot scale in vegetated areas. The study was carried out at five different sites with dominant vegetation cover located in Kenya. In the initial stage of the process, different features are extracted from single polarization mode (VV polarization) SAR and optical data. Subsequently, proper selection of the relevant features is conducted on the extracted features. An advanced state-of-the-art machine learning regression approach, the support vector regression (SVR) technique, is used to retrieve soil moisture. This paper takes a new look at soil moisture retrieval in vegetated areas considering the needs of practical applications. In this context, we tried to work at the object level instead of the pixel level. Accordingly, a group of pixels (an image object) represents the reality of the land cover at the plot scale. Three approaches, a pixel-based approach, an object-based approach, and a combination of pixel- and object-based approaches, were used to estimate soil moisture. The results show that the combined approach outperforms the other approaches in terms of estimation accuracy (4.94% and 0.89 compared to 6.41% and 0.62 in terms of root mean square error (RMSE) and R2), flexibility on retrieving the level of soil moisture, and better quality of visual representation of the SMC map.

scholarly journals Development and evaluation of an automated system for testing current meters

2016 ◽  
Vol 20 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Ezequiel Saretta ◽  
Antonio P. de Camargo ◽  
Tarlei A. Botrel ◽  
Marinaldo F. Pinto ◽  
Geancarlo T. Katsurayama ◽  
...  
Keyword(s):  
User Interface ◽  
Data Acquisition ◽  
Flow Velocity ◽  
Reference Value ◽  
Vertical Axis ◽  
Automated System ◽  
Step Motor ◽  
Simple Task ◽  
Rivers And Streams

ABSTRACT Current meters are equipment widely used for estimating flow velocity in rivers and streams. Periodic calibrations of current meters are important to ensure the quality of measurements, but the required testing facilities are complex and only available in a few institutions. However, advances in electronics and automation may contribute to developing simple and reliable calibration systems. Thus, this study aimed to develop an automated system for testing current meters, which consisted of a trapezoidal channel, a step motor, a tow car and a management system, composed of a supervisory application and microprocessed modules to control the motor and the data acquisition. Evaluations of the displacement velocity showed that it matched the reference value up to 1.85 m s-1 for a vertical-axis current meter and 2.3 m s-1 for a horizontal-axis one. The developed system showed reliability during tests, for both current meter movement and data acquisition. The management of the system based on the developed modules and the supervisory application improved its user interface, turning all the procedure into a simple task.

scholarly journals Enhancing Chromium Phytostabilization Using Chelator (Agrobacterium sp. I26 and Manure) to Support Growth and Quality of Rice (Oryza sativa L.)

2018 ◽  
Vol 15 (2) ◽  
pp. 83 ◽  
Author(s):  
Riani Dwi Utari ◽  
Mohammad Masykuri ◽  
Retno Rosariastuti
Keyword(s):  
Research Output ◽  
Oryza Sativa L ◽  
Block Design ◽  
Industrial Area ◽  
Good Growth ◽  
Chemical Fertilizers ◽  
Randomized Block Design ◽  
Two Factors ◽  
Control Application

There are many of rice field which is located near the industrial area. The industrial waste contains heavy metals (chromium) which will cause contamination of rice if the waste isn’t treated properly. The used of chemical fertilizers can cause chromium contamination. It needs an effort to do remediation, such as using phytostabilization mechanism. This research aimed to determine the role of chelator in chromium phytostabilization and its influence on the growth and quality of rice. The study was conducted in Waru village, Karanganyar in May to October 2018.  This research was factorial design used completely randomized block design with two factors, namely chemical fertilizers and chelator (<em>Agrobacterium </em>sp. I<sub>26</sub>, and manure). The parameters observed are chromium content and uptake by plant tissues (roots, shoot and rice), plant height and a number of clumps. Research output was without chemical fertilizer-chelator <em>Agrobacterium </em>sp. I<sub>26</sub> that can increase the chromium uptake in roots as big as 95.38 %, increased up to 10 %  in the shoot and decreased up to 92.38 % in rice compared to control. Application of <em>Agrobacterium</em> sp. I<sub>26</sub> can be recommended to produce good quality and quantity of rice (good growth and free from harmful pollutants such as chromium metal).

scholarly journals Improvement Growth, Yield, and Seed Quality of Pea Plants Using Glass Fertilizers and Bio-Fertilizers.

2021 ◽  
Author(s):  
Eman G. Sayed ◽  
Mona A. Ouis
Keyword(s):  
Plant Growth ◽  
Rhizobium Leguminosarum ◽  
Field Experiments ◽  
Seed Quality ◽  
Growth Yield ◽  
Control Treatment ◽  
Chemical Fertilizers ◽  
Yield Attributes ◽  
The Impact

Abstract A new glass fertilizer (GF) system of main composition 60P2O5.30K2O.3.5ZnO. 3.5MnO.3Fe2O3 was developed in response to the needs of pea plants with bio-fertilizers (Rhizobium leguminosarum. Bv.vicieae, Bacillus megaterium var phosphaticum, Bacillus circulans).GF was prepared by the traditional melt quenching technique at 1150°C. Characterization of prepared system was done using FTIR spectra before and after immersion in a simulated actual agriculture medium like 2% citric acid and distilled water. During two winter seasons, two successful field experiments were conducted at Cairo University's Eastern Farm to determine the impact of chemical, glass, and bio-fertilizers on plant growth, yield attributes, and seed quality of pea plant. Control treatment were without any addition of recommended chemical fertilizers and other treatments were full dose of recommended chemical fertilizers (100%RDF), glass fertilizers at rate 60 kg fed− 1, Glass fertilizers at rate30 kg fed− 1, 50% RDF ,100%RDF + bio-fertilizers, Glass fertilizers at rate 60 kg fed− 1 + bio-fertilizers, glass fertilizers at rate 30 kg fed− 1+ bio-fertilizers, 50%RDF + bio-fertilizers. Plots received 60 kg fed− 1 glass fertilizers + bio-fertilizers show the highest significant increment in plant growth, number and weight of pods plant− 1, number of grain pods− 1, grain yield, biological yield, P%, k% in pea leaves and quality of pea seeds compared with plots without any addition (control) in both seasons.

scholarly journals Formation of paremiological competence using mobile applications in a foreign language lesson in elementary school

2021 ◽  
Vol 113 ◽  
pp. 00058
Author(s):  
M.A. Kulkova ◽  
A.I. Giniatullina ◽  
N.V. Konopleva
Keyword(s):  
Elementary School ◽  
Foreign Language ◽  
Mobile Applications ◽  
Mobile Application ◽  
Communicative Competence ◽  
Teaching English ◽  
Initial Stage ◽  
Flexible Adaptation ◽  
The Individual

This article is devoted to the study of the conditions for the formation of paremiological competence in a foreign language lesson using mobile applications. Their usage allows to improve the quality of the process of learning foreign language thanks to the elements of interactivity. Mobile applications provide the ability of flexible adaptation of educational content to the individual needs of the teacher. Using the mobile application called ‘Quizlet’ is one of the most effective ways to form the paremiological component of communicative competence in schoolchildren at the initial stage of education. The success of using this mobile application in teaching English vocabulary is confirmed by the results of the pedagogical experiment.

scholarly journals The Effects of the Consumer's Consumption Tendency on the Consumption Behavior of Customers visiting Hair salons

2021 ◽  
Vol 27 (5) ◽  
pp. 1238-1245
Author(s):  
Mi-Sun Ku ◽  
Seo-Heui Kim
Keyword(s):  
Quality Of Life ◽  
Consumption Patterns ◽  
Consumption Behavior ◽  
Beauty Salon ◽  
The Past ◽  
Rapid Economic Growth ◽  
Beauty Salons ◽  
And Behavior ◽  
Day By Day

As Korea's economic leeway has increased through rapid economic growth, the past simple consumption patterns for food, clothing, and shelter have changed from consumption patterns that invest for quality of life. This change in consumption has also affected the beauty industry, and competition in the beauty salon industry is getting fiercer day by day. Accordingly, it is judged that it is necessary to study the consumption propensity and behavior of customers visiting beauty salons in the current situation. Therefore, this study was conducted to find out whether consumption propensity affects consumption behavior by filling out a questionnaire targeting people in their 20s and 40s who have visited beauty salons. We want to provide the necessary basic data.

THE DEHYDRATION OF PORK

1943 ◽  
Vol 21d (12) ◽  
pp. 394-404
Author(s):  
Jesse A. Pearce
Keyword(s):  
Moisture Content ◽  
Final Stage ◽  
Open Steam ◽  
Raw Meat ◽  
Initial Stage ◽  
Drying Procedures ◽  
Tray Drying

Four preprocessing and three drying procedures for the dehydration of pork were studied. The best product resulted from cooking in an open steam-jacketed kettle, followed by mincing and tunnel–tray drying in four hours or less with a tray load of 2 lb. per square foot. Little difference in quality of the product was observed for air velocities of 700 to 1200 ft. per min. over the trays, or for initial stage temperatures between 70° and 80 °C. and final stage temperatures between 55° and 70 °C.Pork, when dried to a moisture content of 3 to 4% in less than four hours, still retained a high percentage of the thiamin present in the raw meat, showed no fat deterioration when assessed by peroxide oxygen determinations, and on reconstitution had a palatability rating approximately equal to that of the initial cooked material.

Challenges Assessment for the E-Commerce Industry in India

2017 ◽  
Vol 25 (4) ◽  
pp. 16-31 ◽  
Author(s):  
Anand Vyas ◽  
Sachin Gupta
Keyword(s):  
Rural Areas ◽  
Online Shopping ◽  
New Technology ◽  
Research Paper ◽  
Customer Perception ◽  
Theoretical Contribution ◽  
The Core ◽  
Internet Users ◽  
Initial Stage ◽  
Day By Day

The core aim of this research paper is to analyze the challenges faced by an E-commerce industry in India. The Indian Economy is proliferating day by day and E- commerce industry is playing an imperative and laudable role in its progress. Still there are enormous sectors that have been untouched by an E-commerce industry in India, particularly in its rural areas. Many consumers in India still follow the traditional purchasing method. Unfortunately, altering customer perception of online shopping has been quite a tough task for the E-commerce industry. According to a survey, India is ranked fourth in the world for its number of Internet users. So, it is expected that India would come into the top 10 E-commerce hub by 2020. Indian buyers are afraid to use new technology in its Initial stage. But, if an E-commerce company could provide proper feedback and knowledge to its customers for online purchasing, it would directly help to increase the sales of the E-commerce websites. This research paper gives a theoretical contribution for analyzing the hurdles in front of the E-commerce industry.

scholarly journals Waste Management through Composting: Challenges and Potentials

2020 ◽  
Vol 12 (11) ◽  
pp. 4456 ◽  
Author(s):  
Modupe Ayilara ◽  
Oluwaseyi Olanrewaju ◽  
Olubukola Babalola ◽  
Olu Odeyemi
Keyword(s):  
Pathogen Detection ◽  
Raw Materials ◽  
Nutrient Status ◽  
Chemical Fertilizers ◽  
Factors Affecting ◽  
Long Duration ◽  
Fundamental Process ◽  
Greenhouse Effects ◽  
Odor Production

Composting is the controlled conversion of degradable organic products and wastes into stable products with the aid of microorganisms. Composting is a long-used technology, though it has some shortcomings that have reduced its extensive usage and efficiency. The shortcomings include pathogen detection, low nutrient status, long duration of composting, long mineralization duration, and odor production. These challenges have publicized the use of chemical fertilizers produced through the Haber–Bosch process as an alternative to compost over time. Chemical fertilizers make nutrients readily available to plants, but their disadvantages outweigh their advantages. For example, chemical fertilizers contribute to greenhouse effects, environmental pollution, death of soil organisms and marine inhabitants, ozone layer depletion, and human diseases. These have resulted in farmers reverting to the application of composts as a means of restoring soil fertility. Composting is a fundamental process in agriculture and helps in the recycling of farm wastes. The long duration of composting is a challenge; this is due to the presence of materials that take a longer time to compost, especially during co-composting. This review discusses the proper management of wastes through composting, different composting methods, the factors affecting composting, long-duration composting, the mechanism behind it, the present trends in composting and prospects. The extraction of mono-fertilizers from compost, development of strips to test for the availability of heavy metals and pathogens as well as an odor-trapping technique can go a long way in enhancing composting techniques. The addition of activators to raw materials can help to improve the nutritional quality of compost. This review further recommends that degradable organic material in which composts slowly should be assessed for their ability to mineralize slowly, which could make them advantageous to perennial or biennial crops. Viricides, fungicides, anti-nematodes, and anti-bacterial of plant or organic sources could as well be added to improve compost quality. The enhancement of composting duration will also be useful.

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