Tailoring the surface properties and flexibility of starch-based films using oil and waxes recovered from potato chips byproducts

Agrofood byproducts may be exploited as a source of biomolecules suitable for developing bioplastic materials. In this work, the feasibility of using starch, oil, and waxes recovered from potato chips byproducts for films production was studied. The recovered potato starch-rich fraction (RPS) contained an amylopectin/amylose ratio of 2.3, gelatinization temperatures varying from 59 to 71 °C, and a gelatinization enthalpy of 12.5 J/g, similarly to a commercial potato starch (CPS). Despite of its spherical and oval granules identical to CPS, RPS had a more amorphous structure and gave rise to low viscous suspensions, contradicting the typical B-type polymorph crystal structure and sluggish dispersions of CPS, respectively. When used for films production, RPS originated transparent films with lower roughness and wettability than CPS-based films, but with higher stretchability. In turn, when combined with RPS and CPS, oil or waxes recovered from frying residues and potato peels, respectively, allowed to develop transparent yellowish RPS- and CPS-based films with increased surface hydrophobicity, mechanical traction resistance, elasticity, and/or plasticity. Therefore, potato chips industry byproducts revealed to have thermoplastic and hydrophobic biomolecules that can be used to efficiently develop biobased plastics with improved surface properties and flexibility, opening an opportunity for their valorization.publishe

Triple GEM Tracking Detectors for the BM@N Experiment

BM@N (Baryonic Matter at the Nuclotron) is the fixed target experiment aimed to study nuclear matter in the relativistic heavy ion collisions at the Nuclotron accelerator in JINR. The BM@N tracking system is based on Gas Electron Multipliers (GEM) detectors, mounted inside the BM@N analyzing magnet. The structure of the GEM detectors and the results of study of their characteristics are presented. The GEM detectors are integrated into the BM@N experimental setup and data acquisition system. The results of the first test of the GEM tracking system in the technical run with the deuteron beam are shortly reviewed

Управление кислородно-конвертерной плавкой в замкнутом режиме

Робота виконувалася з метою підвищення ефективності киснево-конвертерної плавки завдяки побудові системи замкненого керування. Створення моделей киснево-конвертерної плавки здійснювалося на основі комбінованого методу моделювання, який включає детермінований, ймовірнісний та евристичний підходи, методів автоматичної класифікації і позитивного досвіду попереднього керування. Розроблена замкнена система включає в себе статичну, динамічну і замкнену моделі керування киснево-конвертерним процесом виробництва сталі. Статична модель забезпечує розрахунок параметрів плавки до початку процесу, динамічна - розрахунок швидкості зневуглецювання, зміни температури та швидкості вигорання домішок під час продувки. Розроблена замкнена система керування проходила адаптацію в умовах 160-тонних конвертерів ПАТ “АрселорМіттал, Кривий Ріг”. Економічний ефект від впровадження системи керування конвертерною плавкою досягається за рахунок випуску плавок по заданих марках сталі, підвищення виходу придатного, покращення якості продукції, економії часу та матеріалів. Замкнена система керування забезпечує параметри для оптимального керування процесом.The work was done in order to increase the efficiency of BOF smelting by constructing closed-loop control system. The creation of BOF melt models was based on the combined modeling method, which includes deterministic, probabilistic and heuristic approaches, methods of automatic classification and the positive experience of the previous administration. A closed-loop system including a static, dynamic and closed control model BOF steelmaking process was developed. Static model provides payment options to begin the process of melting, dynamic - decarbonization rate calculation, changes in temperature and burn-up rate during purging impurities. Developed a closed-loop control adaptation held under 160-tonnage converters PJSC “ArcelorMittal Kriviy Rih”. Economic effect of implementing a control system converter process is achieved through the issuance of heats on the specified steel grades, higher weight yield, improve product quality, saving time and materials. Closed-loop control provides settings for optimal process control.Работа проводилась с целью увеличения эффективности кислородно-конвертерной плавки путем построения системы замкнутого управления. Создание моделей кислородно-конвертерной плавки осуществлялось на основе комбинированного метода моделирования, который включает в себя детерминированный, вероятностный и эвристический подходы, методы автоматической классификации и позитивного опыта предыдущего управления. Разработаная замкнутая система включает в себя статическую, динамическую и замкнутую модели управления кислородно-конвертерным процессом производства стали. Статическая модель обеспечивает расчет параметров плавки до начала процесса, динамическая - расчет скорости обезуглероживания, изменения температуры и скорости выгорания примесей во время продувки. Разработаная замкнутая система управления проходила адаптацию в условиях 160-тонных конвертеров ПАО “АрселорМиттал, Кривой Рог”. Экономический эффект от внедрения системы управления конвертерной плавкой достигается за счет выпуска плавок по заданным маркам стали, повышения выхода годного, улучшения качества продукции, экономии времени и материалов. Замкнутая система управления обеспечивает параметры для оптимального управления процессом

The HEV Ventilator

HEV is a low-cost, versatile, high-quality ventilator, which has been designed in response to the COVID-19 pandemic. The ventilator is intended to be used both in and out of hospital intensive care units, and for both invasive and non-invasive ventilation. The hardware can be complemented with an external turbine for use in regions where compressed air supplies are not reliably available. The standard modes provided include PC-A/C(Pressure Assist Control),PC-A/C-PRVC(Pressure Regulated Volume Control), PC-PSV (Pressure Support Ventilation) and CPAP (Continuous Positive airway pressure). HEV is designed to support remote training and post market surveillance via a web interface and data logging to complement the standard touch screen operation, making it suitable for a wide range of geographical deployment. The HEV design places emphasis on the quality of the pressure curves and the reactivity of the trigger, delivering a global performance which will be applicable to ventilator needs beyond theCOVID-19 pandemic. This article describes the conceptual design and presents the prototype units together with their performance evaluation.Comment: 34 pages, 18 figures, Extended version of the article submitted to PNA

Immunohistochemical diagnostic of hibernoma in dog

The diagnosis of hibernoma is uncommon in veterinary medicine. In this report, we present an attempt to confirm hibernoma diagnosed in dogs by applying immunohistochemical tests routinely used in human pathology i.e. antibodies specific to protein S100, protein CD31, or smooth muscle actin (SMA)

GEM tracking system of the BM@N experiment

BM@N (Baryonic Matter at the Nuclotron) is the fixed target experiment aimed to study nuclear matter in the relativistic heavy ion collisions at the Nuclotron accelerator in JINR. Detectors based on Gas Electron multipliers (GEM) have been identified as appropriate for the BM@N tracking system, which is located inside the BM@N analyzing magnet. The structure of the GEM detectors and the results of study of their characteristics are presented. The GEM detectors are integrated into the BM@N experimental setup and data acquisition system. The performance of the GEM tracking system in the first technical run with the deuteron beam is shortly reviewed

Performance of the BM@N GEM/CSC tracking system at the Nuclotron beam

BM@N (Baryonic Matter at the Nuclotron) is a fixed target experiment aimed to study nuclear matter in the relativistic heavy-ion collisions at the Nuclotron accelerator in JINR. The BM@N tracking system is based on Gas Electron Multipliers (GEM) detectors mounted inside the BM@N analyzing magnet. The Cathode Strip Chamber (CSC) is installed outside the magnet. The CSC is used for improvement of particles momentum identification. The structure of the GEM detectors and the CSC prototype and the results of study of their characteristics are presented. The GEM detectors and CSC are integrated into the BM@N experimental setup and data acquisition system. The results of first tests of the GEM tracking system and CSC in last runs are shortly reviewed

Performance of the BM@N GEM/CSC tracking system at the Nuclotron beam

BM@N (Baryonic Matter at the Nuclotron) is a fixed target experiment aimed to study nuclear matter in the relativistic heavy-ion collisions at the Nuclotron accelerator in JINR. The BM@N tracking system is based on Gas Electron Multipliers (GEM) detectors mounted inside the BM@N analyzing magnet. The Cathode Strip Chamber (CSC) is installed outside the magnet. The CSC is used for improvement of particles momentum identification. The structure of the GEM detectors and the CSC prototype and the results of study of their characteristics are presented. The GEM detectors and CSC are integrated into the BM@N experimental setup and data acquisition system. The results of first tests of the GEM tracking system and CSC in last runs are shortly reviewed