In order to make positive socio-economic transformations, the concept of the sustainable development was proposed and it can be implemented through the innovation. And startups are among the modern innovation drivers. So, the aim of the research was to identify the key startup success factors and to develop an instrument for startup success evaluation in order to minimize the loss of time and resources and partly overcome the high uncertainty rates, specific to the startup industry, using multidisciplinary approach and, in turn, contribute to the sustainable development implementation. It was found that there are three main constituents which influence the startup success – an external environment, startup activity and an internal startup environment. The determined success factors were analyzed according to the groups which correspond to these constituents. The mathematical model in the form of the Bayesian network for evaluation and prediction of the startup success was developed. It was found that the modeled startup success probability is most likely to be of a low or an average level. The conditional probabilities distribution for the startup success was also analyzed. The developed model can be used for the startups success levels determination in a particular country, specific market, etc.
Purpose is to predict potentially hazardous effects of diesel vehicles of mining enterprises on the environment and to minimize the environmental risks caused by these impacts by modifying motor fuels with special additives. Methods. Method of mathematical modeling, implemented within the MathCAD environment, was used for assessment of the increase of environmental load on the roadside territories and human health caused by emissions of pollutants from exhaust gases of heavy diesel vehicles (HDV) of mining enterprises. The data, concerning potential emissions of the most hazardous pollutants from the exhaust gases of HDVs, has been generalized both by own field observations and by the analysis of scientific literary sources. The load on the environment by the analyzed pollutants has been corrected taking into consideration the share of heavy diesel vehicles engaged in cargo carriages by means of pendular routes of mining enterprises. Findings. Increased level of the environmental risk, resulted from operation of heavy diesel vehicles and other types of special-purpose diesel machines, has been identified. It has been proposed to apply a method of physical and chemical control of the motor fuel by adding multifunctional fuel composition (i.e. additive) containing both surface-active and antioxidant complexes. It has been determined that the use of the developed additive decreases substantially the load on the environment, in particular, on the roadwayby 26-29% for nitrogen oxides and by 39-41% for particulate matter (PM). The abovementioned mitigates environmental risks as well as the impact of heavy diesel vehicles on the human health. The substantial reduction of the distances, within which safe concentration levels of the analyzed pollutants can be observed, has been achieved. Originality. It has been identified that the diesel fuel modification by the developed additive makes it possible to solve a problem of local and diffuse pollution of a roadside space resulted from HDV emissions. It has been proved that the use of the fuel composition decreases toxic level of exhaust gases of diesel motors and reduces fuel consumption while improving the fuel burning conditions as well as air-fuel mixture forming. Practical implications. The obtained results may be applied to improve ecological safety level of the roadside territories and to minimize the ecological risks resulted from HDVs of mining enterprises for the environment and human health.
Дослідження дорожніх умов та виявлення об'єктів підвищеного екотоксикологічного впливу з боку автотранспорту в м. Києві дало змогу за допомогою програмного комплексу MathCad створити просторові моделі та побудувати поля розсіювання емітентів відпрацьованих газів автомобілів (на прикладі чадного газу СО), а також визначити умови розповсюдження забруднювачів до і після модифікації моторного палива дизельної складової транспортного потоку розробленими багатофункціональними присадками й добавками оксигенатного біокомпоненту. Розроблена та апробована методика короткострокового прогнозування забруднення придорожнього міського повітряного простору основними полютантами викидів автотранспортних засобів. За дискретно-інтерполяційного підходу враховано геометричні особливості лінійних джерел забруднення, уточнено локальні забруднення придорожнього простору й прилеглих до автомагістралей територій. Визначено екологічний ефект від модифікації моторного дизельного палива розробленою багатофункціональною присадкою. Доведено, що при гіпотетичному застосуванні розробленої присадки ізоконцентрації токсикантів наближаються до гранично-допустимих значень на меншій відстані від лінійного джерела викиду (автомагістралі). Ключові слова: автотранспорт; забруднення атмосферного повітря; полютанти; придорожній повітряний простір; розсіювання домішок у повітрі.
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