The use of deforming broaching for enhancing the efficiency of cutter chisels

Purpose. To determine the potential of deforming broaching for the improvement of efficiency of cutter chisels in the mining industry. Methodology. The study of the application of the technological process of deforming broaching was carried out based on the experimental research into conditions of assembly of press couplings corresponding to cutting rock-destroying tools, the working surface of which is reinforced with solid-alloy inserts. Findings. Based on the conducted research, a new process of assembling the crowns of cutter chisels with the use of deforming broaching was developed. Originality. It was determined that the range of angles of inclination of generatrix of the working cone of the deforming element and the roll-treading lip of the insert, which are necessary for efficient machining and pressing in crowns of cutters, is 4–16°. It was proven that the “solid alloy-steel” press couplings for cutter chisels will have the maximum bearing capacity at total tension a/d0 ≤ 3 %. It was found that it is necessary to foresee the following distribution of tensions: to perform 2 % of deformation by preliminary deforming broaching, and 1 % ‒ by pressing in an insert Practical value. The use of deforming broaching makes it possible to increase the strength of fastening the inserts of cutter chisels by 2 times, to reduce specific consumption of the tool by 4.4 times, and to increase the average drilling rate by 4 times

The Relationship Between the Valence and Arousal of Emotions and the Decision-Making on Donations

The present study aimed to examine the relationship between emotional state and prosocial behavior. An experiment investigated the influence of picture valence and arousal on donation size. Based on self-reported emotions and physiological reactions’ data of 54 participants, we showed that valence and arousal are related to donation size. According to the received data, the participants donated more when they experienced negative and strong emotions. The results also showed that the ill health of pets is a crucial characteristic for collecting donations in a context of homeless dogs

INTER-SUBJECT CORRELATIONS OF EMOTIONAL STATES AS A PREDICT OF CHARITABLE BEHAVIOR: A PSYCHO-PHYSIOLOGICAL RESEARCH PROPOSAL

In this study, we explore the relationship between the level of intersubject correlations of the emotional state and the size of the donation. Using the Facereader, an automatic emotion recognition program, as well as the skin conductance response (SCR) heart rate (HR), we measure the emotional state of the subjects while watching donation videos. We expect that the level of synchronization of the emotional state, SCR and HR will be related to the amount of donations. The data obtained can be useful for evaluating the effectiveness of charitable stories and optimizing non-profit organization’ marketing communications.Мы исследовали взаимосвязь уровня межсубъектных корреляций эмоционального состояния и размера пожертвования. Используя программу автоматического распознавания эмоций (Facereader), а также показатели электрической активности кожи (ЭАК), частоты сердечных сокращений (ЧСС) и вариабельности сердечного ритма (ВСР), мы измеряем эмоциональное состояние испытуемых во время просмотра видеосюжетов, направленных на сбор пожертвований. Мы предполагаем, что уровень синхронизации эмоционального состояния, ЭАК, ЧСС, ВСР будет связан с размером пожертвований. Полученные данные могут быть полезны для оценки эффективности благотворительных сюжетов и оптимизации маркетинговых коммуникаций некоммерческих организаций

Synthesis of Novel Iono- and Photochromic Spiropyrans Derived from 6,7-Dihydroxy-8-Formyl-4-Methyl-2H-Chromene-2-One

Novel photochromic spiropyrans (SPPs) containing 6′-hydroxy group were synthesized and their spectral properties as well as abilities for complexation with metal ions studied. In solutions they exist as equilibrium mixture of spirocyclic (A) and merocyanine (B) isomers. The largest content of merocyanine form was found for the derivative with an electron-donating methyl group in position 5 of hetaryl fragment. The irradiation of SPPs in acetonitrile shifts the equilibrium to the B form. Similar effect causes the addition of metal cations due to formation of colored complexes with merocyanine isomers

PRIVATE CHARITY: INFLUENCE OF VALENCY AND INTENSITY OF EMOTIONS CAUSED BY THE ADVERTISING OF SO NPO ON THE VOLUME OF DONOR DONATIONS

Given the growing demand for social services, constant competition in the market of non-profit organizations, reduced funding from large businesses and extremely limited state support, SO NPOs can strengthen their position by developing effective advertising campaigns aimed at attracting private donations. One of the main questions for the creators of fundraising advertising is the relevance of emotional valence of the image used as advertising material. This article explores the issue of how images that evoke negative and positive emotions of varying intensity affect donations.В условиях растущей потребности населения в социальных услугах, постоянной конкуренции на рынке некоммерческих организаций, сокращения финансирования со стороны крупного бизнеса и крайне ограниченной государственной поддержки СО НКО могут укрепить свои позиции за счет разработки эффективных рекламных кампаний, направленных на привлечение частных пожертвований. Одним из главных вопросов для создателей фандрайзинговой рекламы является актуальность эмоциональной валентности изображения, используемого в качестве рекламного материала. В статье изучается вопрос, как изображения, вызывающие негативные и позитивные эмоции разной интенсивности, влияют на объем пожертвований