A new modification of the McEliece public-key cryptosystem is proposed that employs the so-called maximum-rank-distance (MRD) codes in place of Goppa codes and that hides the generator matrix of the MRD code by addition of a randomly-chosen matrix. A short review of the mathematical background required for the construction of MRD codes is given. The cryptanalytic work function for the modified McEliece system is shown to be much greater than that of the original system. Extensions of the rank metric are also considered.
Russian Scientific Research and Development Cable Institute (known by Russian abbreviation as VNIIKP) has been participating in ITER project since 1993 both at the early stage of Research and Development (R&D) and at the following stage of Engineering Design Activity (EDA). Tests of several short samples at Sultan test facility were crowned by successful testing of Toroidal Field (TF) and Poloidal Field (PF) insert coils performed in Japan in 2001 and 2008 correspondingly. Now VNIIKP is actively implementing the final production and delivery stage. By 2009 the full technological complex has been accomplished to produce PF cables for both the Russian Federation (RF) and European parts and TF conductors for RF part. In this review we present a short history of VNIIKP participation in ITER and our current achievements. The technology used and our production line are described in some detail.
Purpose: to reveal the influence of mineral fertilizers and hydrothermal conditions of the growing season on the yield and protein content in the spring wheat grain. Materials and methods. The research was carried out in Aksai district of Rostov region on the experimental field of Federal Rostov Agrarian Scientific Center (FRANTS). The objects of research are the yield and protein content in spring wheat grain, as well as the dose of mineral fertilizers. Testing, accounting and mathematical processing of the data obtained were carried out according to B. A. Dospekhov. Results. As a result of the research, it was found that the application of mineral fertilizers leads to a significant increase in the yield of spring wheat, regardless of the moisture supply of the growing season, the maximum increase was obtained with the introduction of N60P30K60. The application of mineral fertilizers leads not only to an increase in yield, but also to an increase in its dependence on the hydrothermal conditions of the growing season. Data analysis using a multiple correlation coefficient showed that in the variants with the mineral fertilizers application there was a close direct relationship between the yield, SCC and the amount of precipitation (r = 0.79...0.88 according to the variants of the experiment), while in the control variant it was average in terms of influence (r = 0.63...0.64). The accumulation of protein in spring wheat grain is influenced by the combined effect of the meteorological conditions of the growing season and the mineral fertilizers used. The maximum effect of the SCC and the amount of precipitation that fell during the growing season on the protein content in wheat grain was obtained with the introduction of K60 (the parameter was 53.7 and 51.8 %, respectively). Conclusions. The application of mineral fertilizers can significantly increase the yield of spring wheat and regulate the protein content in grain, reducing the influence of the hydrothermal conditions of the growing season. The best results were obtained with the introduction of N60P30K60, which makes it possible to reduce the negative effect of meteorological conditions and increase the yield by 9.3–92.8 % in comparison with the control variant.
Цель: выявить влияние погодных факторов на урожайность и содержание белка в зерне ярового ячменя в условиях Приазовской зоны Ростовской области. Материалы и методы: исследования проводились в Аксайском районе Ростовской области на опытном поле ФГБНУ ФРАНЦ. Объекты исследований-урожайность и содержание белка в зерне ярового ячменя, возделываемого в звене севооборота горох-озимая пшеницаяровой ячмень. Закладка опытов, проведение учетов и математическая обработка полученных данных проводились согласно методике полевого опыта Б. А. Доспехова. Определение гидротермического коэффициента осуществлялось согласно методике Г. Т. Селянинова. Результаты. В результате проведения исследований установлено наличие сильной положительной связи между величиной получаемой урожайности и внесением удобрений. Коэффициент корреляции по годам исследований колебался в пределах 0,70-0,88. Установлено, что вне зависимости от влагообеспеченности посевы ярового ячменя формируют наибольшую урожайность при внесении полного минерального удобрения N30Р60K150. Максимальное содержание белка в зерне изучаемой культуры в острозасушливые годы формировалось при внесении N30P60 (в среднем составив 13,4 %), в засушливые в варианте N30 (11,9 %), а в слабозасушливые при использовании P60 (11,4 %). Проведенный корреляционно-регрессионный анализ показал наличие средней и сильной отрицательной связи между гидротермическим коэффициентом, суммой осадков в период вегетации и содержанием белка в зерне ячменя. Выводы: в условиях Приазовской зоны Ростовской области внесение удобрений помогает снижать негативное действие гидротермических условий вегетационного периода, что особенно актуально в годы с недостаточным количеством осадков и высокой температурой воздуха, и обеспечить формирование максимально возможного при данных условиях урожая. Для получения стабильных урожаев ярового ячменя необходимо вносить полное минеральное удобрение в дозе N30P60K150. Ключевые слова: гидротермический коэффициент; яровой ячмень; урожайность; содержание белка; минеральные удобрения.
The stability of the industry is determined by the efficiency of the organizations, therefore it is important to conduct an individual performance assessment. Scientific organizations provide information and methodological support for industrial sectors, as well as create, test and implement innovative developments. Evaluation of the effectiveness of a scientific organization is made up of various indicators, but recently a group of indicators reflecting publication activity has gained particular popularity. Publication activity does not fully reflect the activities of a scientific organization, but at the same time it can be used in comparative analysis, in building trends, in the planning process, etc. The convenience of such an assessment of activities is beyond doubt, but the objectivity is questionable and requires additional data. Currently, publication activity indicators are the main publicly available method for assessing the work of a scientific organization. In this regard, the need for correct methodology and data provision increases. Evaluation of the activities of FSBSI FRASC is carried out on the basis of data from the eLibrary.ru information base, the information of which is publicly available and, if necessary, will allow a comparative analysis.The assessment of publication acti- vity is carried out using citation indices, it consists not only of considering the number of articles by the authors of the scientific center, but also a qualitative analysis of journals, the number of authors in the article, the frequency of citation and the demand for publications, other printed publications of the scientific center are considered. This approach improves the reliability of the estimate. Thus, the use of a citation index, taking into account the shortcomings of this method, can give an objective assessment of publication activity and determine the directions for increasing the effectiveness of a scientific organization.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.