scholarly journals Assessment of energy potential of agricultural plants as a basis of bioenergetic management development in Ukraine

2018 ◽  
Vol 16 (2) ◽  
pp. 331-340
Author(s):  
Alina Yakymchuk ◽  
Olha Pakharenko ◽  
Serhiy Shturkhetskyy

Sustainable economic growth and increase in the level of population wellbeing, the diminution of energy dependence of Ukraine from the neighboring countries can only be achieved through the use of different types of biofuels, the practice of which is confirmed by the experience of other countries. One of the most promising types of fuel is agricultural plants, or rather the waste that remains after harvesting. The purpose of this study is to assess the energy potential of agricultural plants in Ukraine on the example of the Lviv region with an idea that it might reduce the energy dependence of Ukraine on Russia and other countries and will become a basis for improving the national energy management system. Assessment of the energy potential of agricultural plants was carried out on the example of the Lviv region. This assessment is based on all three components of the energy potential of agricultural plants (both theoretically and technically feasible and economically justified).According to the results of calculations, waste of wheat, other grain crops and rape has the largest energy potential. In particular, the energy potential of agricultural biomass of the Lviv region makes theoretically possible (maximum) 2.1 million tons of fuel equivalent, technically achievable 0.915 million tons of fuel equivalent (including losses), and economically expedient (optimal) 0.74 million tons of fuel equivalent. The evidence revealed in the study confirmed the fact that Ukraine has sufficient energy potential use of agricultural crops. All these measures correspond to the state strategy for the development of the energy potential of Ukraine. Considerable attention is paid to the need to form an optimal management system for the use of energy potential of agricultural plants in Ukraine. Given the significant economic efficiency of agricultural wastes, the expediency of its use as biofuels has been substantiated. The most effective in energy terms are grain crops (wheat, barley), which should be preferred in the process of biomass creation.

Author(s):  
Richard Wigmans

The energy resolution, i.e. the precision with which the energy of a showering particle can be measured, is one of the most important characteristics of a calorimeter. This resolution is determined by fluctuations in the absorption and signal formation processes. In this chapter, the different types of fluctuations that may play a role are examined, and their relative practical importance is addressed. Sources of fluctuations include fluctuations in the number of signal quanta, sampling fluctuations, fluctuations in shower leakage, as well as a variety of instrumental effects. Since the energy dependence of the different types of fluctuations is not the same, different types of fluctuations may dominate the energy resolution at low and and at high energies. An important type of fluctuations is part of the non-compensation phenomena. It concerns fluctuations in the strength of the electromagnetic component of hadronic showers. The effects of these fluctuations, which typically dominate the energy resolution for hadron and jet detection, are examined in detail. In sampling calorimeters, one particular shower particle may sometimes have catastrophic effects on the calorimeter performance. Several examples of such cases are discussed.


2021 ◽  
Author(s):  
Karine Loth ◽  
Nicolas Parisot ◽  
Francoise Paquet ◽  
Catherine Sivignon ◽  
Isabelle Rahioui ◽  
...  

Aphids (Hemiptera: Aphidoidea) are among the most injuring insects for agricultural plants and their management is a great challenge in agronomical research. A new class of proteins, called Bacteriocyte-specific Cysteine-Rich (BCR), provides an alternative to chemical insecticides for pest control. BCRs have been initially identified in the pea aphid Acyrthosiphon pisum. They are small disulfide bond-rich proteins expressed exclusively in aphid bacteriocytes, the insect derived cells that host intracellular symbiotic bacteria. Here, we show that one out of the A. pisum BCRs, BCR4, displays an outstanding insecticidal activity against the pea aphid, impairing insect survival and nymphal growth, providing evidence for its potential use as a new biopesticides. Our comparative genomics and phylogenetic analysis indicate that BCRs seem restricted to the aphid lineage. The 3D structure of the BCR4 reveals that this peptide belongs to a yet unknown structural class of peptides and defines a new superfamily of defensins.


2021 ◽  
Vol 2021 (2) ◽  
pp. 49-54
Author(s):  
LILIANA VIORICA POPA

"The reality remains uncomfortable, the climate crisis is coming with extreme phenomena more and more devastating around the globe and more and more people and more and more parts of ecosystems are suffering from the greed of large companies and lack of constructive action and coherent decision-makers. There are various types of waste generated during operation, and to be able to implement a waste management system, it is necessary to identify and quantify the different types of waste on board. The purpose of this paper is to examine the responsibilities, management, handling and disposal of ship-generated waste and the requirements for the preparation of an on-board waste management plan. "


1987 ◽  
Vol 3 (02) ◽  
pp. 119-127
Author(s):  
Francis G. Bartlett

This paper discusses the progress leading to the development of interim products and proposes their division into four different types of increasing complexity. Database records prepared for each interim product and their material kits are introduced for use in a management system to direct the movement of materials through work stations and to record all administrative data needed to ensure that the vessel will be built within estimates of labor and materials and within the contracted time. In addition, the records of materials, of material kits and of simple interim products are searched and sorted, using database programming, to find items having similar repetitive work processes. Those aforementioned items having these characteristics are collected into groups for their manufacture in specially equipped work stations of a ship's production system. The commercial shipbuilding practices forming the basis for the majority of available references have favored the paper's emphasis on merchant ship construction. Most of the ideas presented can be readily applied to naval shipbuilding.


Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 299
Author(s):  
Nicoleta Radu ◽  
Ana Aurelia Chirvase ◽  
Narcisa Babeanu ◽  
Ovidiu Popa ◽  
Petruta Cornea ◽  
...  

A spent biomass, which results from the biopharma industry, is stabilized and functionalized by biosorption with microelements. The efficiency of this new biomaterial was tested in two experiments: 1) In a mixture with soil to determine its effects of the germination capacity of cereals and vegetables, and 2) in a formulation of mixed fertilizers to determine its influence on the development and production of the two types of vegetables. The results obtained during germination experiments performed in pots showed that at a biomass concentration less than 20%, the germination output was greater than 95% and the germination index was almost 1. The experiments performed in land on vegetables (including Solanum lycopersicum and Capsicum annuum) featured six types of fertilizers formulated with new biomaterials. The obtained results indicated that two types of fertilizers (N 10:0:0 and NP 5:5:0), which were formulated with functionalized biomass and featured the microelements Co, Cu, Fe, Mn, and Zn, exhibited significant effects when compared with vegetables cultivated on unfertilized soil surfaces (the untreated variant). The studies regarding the effect of the new fertilizers obtained based on spent biomass from biopharma industry indicate the following: a) This material, even if it is stabilized and functionalized, cannot be used as such as a germination substrate for vegetables; in addition, it cannot be introduced into soil together with cereals seeds (during the autumn work), because the germination can be affected negatively; b) the functionalized biomass can be used in the formulation of different types of fertilizers; if these fertilizers are introduced into soil with the autumn plowing, then they may have a positive influence on the yield of some species of vegetable, such as Solanum lycopersicum and Capsicum annum. The new fertilizers have a major environmental impact due to: 1) Removal of waste, which results from pharmaceutical biosyntheses, with significant impact on soil pollution, due to its storage in the form of waste dumps, on the soil; 2) recovery and reinsertion into the natural circuit of nutrients like C, N, P, K, Mg, and Ca contained in spent biomass, by their reuse in agriculture; and 3) high content of compounds with C from spent biomass can improve in time the content of fulvic and humic acids in soil, with a positive effect on soil characteristics from an agronomic point of view.


2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Lili He ◽  
Zhenghui Shang ◽  
Hongmei Liu ◽  
Zhi-xiang Yuan

As an acidic, ocean colloid polysaccharide, alginate is both a biopolymer and a polyelectrolyte that is considered to be biocompatible, nontoxic, nonimmunogenic, and biodegradable. A significant number of studies have confirmed the potential use of alginate-based platforms as effective vehicles for drug delivery for cancer-targeted treatment. In this review, the focus is on the formation of alginate-based cancer-targeted delivery systems. Specifically, some general chemical and physical properties of alginate and different types of alginate-based delivery systems are discussed, and various kinds of alginate-based carriers are introduced. Finally, recent innovative strategies to functionalize alginate-based vehicles for cancer targeting are described to highlight research towards the optimization of alginate.


2013 ◽  
Vol 16 (4) ◽  
pp. 108-112
Author(s):  
Mariusz J. Ligarski

Abstract In the work, there was a method of problems examination presented in the certified quality management system according to the ISO 9001 standard. The own method of problems examination was suggested on the basis of reports from audits of the third party. There are method assumptions as well as practical application presented for the examination of nonconformities and weaknesses on a sample of 892 organizations certified by a chosen certifying body. Different types of compilations of obtained results are showed. Different possibilities of their application for the examination of relations of identified problems were indicated, depending on the size and profile of examined organizations. Different types of statistical tests were used in the method together with their possibilities. Concrete examples of uses of the method and statistical tests were provided for examining the relations between the size as well as profile of the organization and the number as well as type of nonconformities and weaknesses. It was attempted to determine what possibilities the method provides and to give the examples of its practical use. Additionally, an attention was paid to potential difficulties when applying the method.


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