scholarly journals СОЗДАНИЕ И ИССЛЕДОВАНИЕ ГЕЛИОТЕХНОЛОГИЧЕСКОЙ УСТАНОВКИ С ПОЛИКАРБОНАТНЫМ ПОКРЫТИЕМ

World Science ◽  
2020 ◽  
Author(s):  
Ketevan Archvadze ◽  
Ilia Chachava ◽  
Russudan Tsiskarishvili ◽  
Nanuli Khotenashvili ◽  
Zurab Tabukashvili
Keyword(s):  
Air Temperature ◽  
Greenhouse Effect ◽  
Agricultural Products ◽  
Direct Sunlight ◽  
High Quality ◽  
Fan Effect ◽  
Windy Weather ◽  
Strong Winds ◽  
Hot Weather ◽  
Convective Movement

The proposed solar dryer (S / D) has a polycarbonate coating, which is actually a combined dryer. By drying an agricultural products in the proposed apparatus, it is possible to get ecologically pure and high quality food. The "greenhouse effect" in S / D ensures the temperature under the glass is 15-25°C, higher than the ambient temperature. In windy weather, the product to be dried cannot be left in the open air due to strong winds, in this device drying in windy weather occurs no less intensively than in hot weather, although the air temperature in S / D is not high. During wind it is recommended to locate the S / D with the inlet towards the wind. The high drying speed occurs due to the increased convective movement. The wind creates a fan effect both at the inlet S / D and at the outlet - at the end of the pipe. In the proposed installation, it is possible to dry various agricultural products, both in direct sunlight and without them.

Improvement of separate elements of the techno-logy of cultivation of white cabbage in the conditions of the of the central region of the non-chernozem zone

2020 ◽  
Author(s):  
A.V. Konstantinovich ◽  
◽  
A.S. Kuracheva ◽  
E.D. Binkevich
Keyword(s):  
Seed Treatment ◽  
Unit Area ◽  
Growing Season ◽  
Agricultural Products ◽  
Stress Factors ◽  
High Quality ◽  
Temperature And Precipitation ◽  
White Cabbage ◽  
Sowing Seed

In conditions of climate change, when temperature and precipitation fluctuations occur more and more frequently during the growing season, it is necessary to obtain high quality seedlings with "immunity" to various stress factors, including high weediness, the damage from which is associated with a decrease in yield (by 25 -35%) and with a deterioration in the quality of agricultural products. Due to the imbalance in production technology, seedlings are often weakened, overgrown, with a low yield per unit area and survival rate in the field. One of the solutions to this problem is the use of PP for pre-sowing seed treatment to increase the competitiveness of seedlings in the field.

scholarly journals Ambient Air Temperature Assisted Crystallization for Inorganic CsPbI2Br Perovskite Solar Cells

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3398
Author(s):  
Yi Long ◽  
Kun Liu ◽  
Yongli Zhang ◽  
Wenzhe Li
Keyword(s):  
Solar Cells ◽  
Air Temperature ◽  
High Performance ◽  
Defect Density ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Dark Phase ◽  
High Quality ◽  
Ambient Air Temperature ◽  
Air Atmosphere

Inorganic cesium lead halide perovskites, as alternative light absorbers for organic–inorganic hybrid perovskite solar cells, have attracted more and more attention due to their superb thermal stability for photovoltaic applications. However, the humid air instability of CsPbI2Br perovskite solar cells (PSCs) hinders their further development. The optoelectronic properties of CsPbI2Br films are closely related to the quality of films, so preparing high-quality perovskite films is crucial for fabricating high-performance PSCs. For the first time, we demonstrate that the regulation of ambient temperature of the dry air in the glovebox is able to control the growth of CsPbI2Br crystals and further optimize the morphology of CsPbI2Br film. Through controlling the ambient air temperature assisted crystallization, high-quality CsPbI2Br films are obtained, with advantages such as larger crystalline grains, negligible crystal boundaries, absence of pinholes, lower defect density, and faster carrier mobility. Accordingly, the PSCs based on as-prepared CsPbI2Br film achieve a power conversion efficiency of 15.5% (the maximum stabilized power output of 15.02%). Moreover, the optimized CsPbI2Br films show excellent robustness against moisture and oxygen and maintain the photovoltaic dark phase after 3 h aging in an air atmosphere at room temperature and 35% relative humidity (R.H.). In comparison, the pristine films are completely converted to the yellow phase in 1.5 h.

Study on the Ecological Circulation Agricultural System of Combining Planting and Raising of Berry Tea

2021 ◽  
Vol 2 (4) ◽  
Author(s):  
Defang Cao ◽  
Xiuju Zhang ◽  
Shengyuan Mo ◽  
Guihua Luo ◽  
Zhengfang Qin ◽  
...  
Keyword(s):  
Agricultural Products ◽  
Hunan Province ◽  
Agricultural System ◽  
Selenium Content ◽  
High Quality ◽  
Organic Selenium ◽  
Medicinal Value ◽  
High Selenium ◽  
Ampelopsis Grossedentata ◽  
Scientific Name

Berry tea is a perennial vine. Its scientific name is ampelopsis grossedentata. It belongs to vitaceae and is widely spread in the Tujia people of Xiangxi, Hunan Province. By adopting appropriate agricultural planting technology, rational use of organic selenium fertilizer and nutritional conditioner, we can produce high-quality berry tea with more healthy and even medicinal value and high selenium content, and realize double protection of human health with high selenium content and high flavonoids. Under the existing planting system, through the supplement of breeding links, constructing ecological recycling agricultural system combining planting and raising, not only can greatly enrich the supply of table agricultural products, but also can effectively ensure the high quality and high safety of agricultural products, and can effectively enrich the local agricultural industrial structure.Key words: berry tea; selenium-enriched; ecological agriculture; industrial revitalization and economic development

scholarly journals AGRIBALYSE®, the French LCI Database for agricultural products: high quality data for producers and environmental labelling

OCL ◽  
2014 ◽  
Vol 22 (1) ◽  
pp. D104 ◽  
Author(s):  
Vincent Colomb ◽  
Samy Ait Amar ◽  
Claudine Basset Mens ◽  
Armelle Gac ◽  
Gérard Gaillard ◽  
...  
Keyword(s):  
Agricultural Products ◽  
Quality Data ◽  
High Quality ◽  
High Quality Data ◽  
Environmental Labelling

scholarly journals Determination of Main Spectral and Luminescent Characteristics of Winter Wheat Seeds Infected with Pathogenic Microflora

Photonics ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 494
Author(s):  
Alexey M. Bashilov ◽  
Igor Yu. Efremenkov ◽  
Mikhail V. Belyakov ◽  
Alexander V. Lavrov ◽  
Anatoly A. Gulyaev ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Physical Properties ◽  
Agricultural Products ◽  
High Quality ◽  
Crop Losses ◽  
Software Complex ◽  
Fusarium Infection ◽  
Constant Growth ◽  
Wheat Seeds

In connection with the constant growth of demand for high-quality food products, there is a need to develop effective methods for storing agricultural products, and the registration and predicting infection in the early stages. The studying of the physical properties of infected plants and seeds has fundamental importance for determining crop losses, conducting a survey of diseases, and assessing the effectiveness of their control (assessment of the resistance of crops and varieties, the effect of fungicides, etc.). Presently, photoluminescent methods for diagnosing seeds in the ultraviolet and visible ranges have not been studied. For research, seeds of winter wheat were selected, and were infected with one of the most common and dangerous diseases for plants—fusarium. The research of luminescence was carried out based on a hardware–software complex consisting of a multifunctional spectrofluorometer “Fluorat-02-Panorama”, a computer with software “Panorama Pro” installed, and an external camera for the samples under study. Spectra were obtained with a diagnostic range of winter wheat seeds of 220–400 nm. Based on the results obtained for winter wheat seeds, it is possible to further develop a method for determining the degree of fusarium infection.

scholarly journals MANUFACTURING AND CONSUMPTION OF AGRICULTURAL PRODUCTS AS A TOOL OF FOOD SECURITY MANAGEMENT IN RUSSIA

2016 ◽  
Vol 25 (2) ◽  
pp. 87-94
Author(s):  
Aleksey F. Rogachev ◽  
Anna V. Shokhnekh ◽  
Tamara I. Mazaeva
Keyword(s):  
Mathematical Modeling ◽  
Food Security ◽  
State Policy ◽  
Agricultural Development ◽  
National Level ◽  
Developed Countries ◽  
Optimal Level ◽  
Agricultural Products ◽  
High Quality ◽  
Agrarian Policy

The purpose of the article is to develop instrumentarium for determination ofthe level of food security. In order to achieve the set goal, the authors use method ofmonitoring and economic & mathematical modeling of manufacture and consumption ofagricultural products. In the process of the research, the authors test this method by theexample of modern Russia and determine the existence of the problem of food security. Inorder to solve this problem, the authors develop recommendations for stabilization ofagricultural production, as a basis of country’s food security. The authors also conductanalysis of agricultural development of developed countries and determine primary tasks,solution of which will stipulate provision of the required level of food security. As a resultof the research, the authors come to the conclusion that the developed recommendationscan be directions of unified state approach to solving the problem of achievement of foodsecurity and formation of agrarian policy. At that, it should be noted that policy which isaimed at achievement of national-level goal cannot be formed without relevantinformational provision. Therefore, agriculture authorities must possess full, high-quality,and actualized information. Elements of state policy in the sphere of achievement of foodsecurity can stipulate achieving indicators which are determined by national doctrine andform optimal level of cooperation of national agriculture production and foreign partners.

scholarly journals Conditions for increasing the export of agricultural products in our country in the context of a pandemic

2021 ◽  
Vol 2 (2/S) ◽  
pp. 172-178
Author(s):  
Hojiakbar Fayzullaev ◽  
Umidjon Dadabaev
Keyword(s):  
Agricultural Sector ◽  
Agricultural Products ◽  
High Quality ◽  
Vegetables And Fruits ◽  
Dignified Life

This article examines the sectors of the economy of countries during the pandemic, as well as the issues of growing and exporting agricultural products. The article examines the processes of production of vegetables and fruits in the agricultural sector, their processing high - quality supply of the population, and export. In this article, the authors emphasize the importance of reforms and measures taken in our country not only to save the economy in the event of a pandemic but also to protect our greatest wealth from threats, to ensure their dignified life and long-term development.

Solar and Thermal Radiation Errors on Upper-Air Radiosonde Temperature Measurements

2013 ◽  
Vol 30 (10) ◽  
pp. 2382-2393 ◽  
Author(s):  
R. Philipona ◽  
A. Kräuchi ◽  
G. Romanens ◽  
G. Levrat ◽  
P. Ruppert ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Thermal Radiation ◽  
Air Temperature ◽  
Weather Prediction ◽  
Lower Troposphere ◽  
Longwave Radiation ◽  
Atmospheric Temperature ◽  
Radiative Heating ◽  
Temperature Measurements ◽  
High Quality

Abstract Atmospheric temperature and humidity profiles are important for weather prediction, but climate change has increased the interest in upper-air observations asking for very high-quality reference measurements. This paper discusses an experimental approach to determine the radiation-induced error on radiosonde air temperature measurements. On the one hand, solar shortwave and thermal longwave radiation profiles were accurately measured during radiosonde ascents from the surface to 35-km altitude. On the other hand, air temperature was measured with several thermocouples on the same flight, simultaneously under sun-shaded and unshaded conditions. The radiation experiments reveal that thermal radiation errors on the very thin thermocouple of the Meteolabor SRS-C34 radiosonde are similar during night- and daytime. They produce a radiative cooling in the lower troposphere and the upper stratosphere, but a radiative heating in the upper troposphere and lower stratosphere. Air temperature experiments with several thermocouples, however, show that solar radiation produces a radiative heating of about +0.2°C near the surface, which linearly increases to about +1°C at 32 km (~10 hPa). The new solar radiation error profile was then applied to SRS-C34 measurements made during the Eighth WMO Intercomparison of High Quality Radiosonde Systems, held in Yangjiang, China, in July 2010. The effects of thermal and solar radiation errors are finally shown in contrast to the 10 other internationally used radiosonde systems, which were flown during this international campaign.

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