168 research outputs found
Повышение энергоэффективности электроснабжения локальной сети
Повышение эффективности существующей гибридной электростанции в п. Батагай Верхоянского улуса Республики Саха (Якутия). В результате исследования выбрано оборудование для гибридной электростанции, рассчитана динамика выработки электроэнергии солнечными модулями, построены графики заряда-разряда накопителей электрической энергии, разработана схема гибридной электростанции, разработана автоматизированная система управления и синхронизации генерирующего оборудования, выбрано оборудование в соответствии со схемой, оценена экономическая эффективность проекта гибридной электростанции и определен срок окупаемости.To increase the efficiency of the existing hybrid power plant in the Batagai settlement of the Verkhoyansky ulus of the Republic of Sakha (Yakutia). As a result of the research, the equipment for a hybrid power plant was selected, the dynamics of power generation by solar modules was calculated, the charge-discharge diagrams of electric power storage were constructed, the hybrid power plant scheme was developed, the automated control and synchronization system of the generating equipment was developed, the equipment was selected in accordance with the scheme, the economic efficiency of the project was estimated and determined the payback period
High-dose dietary zinc oxide mitigates infection with transmissible gastroenteritis virus in piglets
Zinc (Zn) supplementation has been shown to reduce the incidence of diarrhea
and to protect animals from intestinal diseases, but the mechanisms of this
protective effect against virus infection in vivo have not yet been
elucidated. Transmissible gastroenteritis virus (TGEV) causes diarrhea in
piglets with an age-dependent decrease of severity. RESULTS: We used 60 weaned
piglets that were divided into three groups to evaluate the effect of
different Zn levels added to a conventional diet (50 mg Zn/kg diet, Znlow,
control group). The other groups received the diet supplemented with ZnO at
final concentrations of 150 mg Zn/kg diet (Znmed), or 2,500 mg/kg diet
(Znhigh). Oral challenge infection with TGEV was performed when the pigs had
been fed for 1 week with the respective diet. Half of the piglets of each
group were sacrificed at day 1 and 18 after challenge infection. Fecal
consistency was improved and body weights increased in the Znhigh group when
compared to the other groups, but no direct effect of Zn concentrations in the
diet on fecal TGEV shedding and mucosal immune responses was detectable.
However, in the Znhigh group, we found a prevention of villus atrophy and
decreased caspase-3-mediated apoptosis of jejunal epithelium. Furthermore,
pigs receiving high Zn diet showed a down-regulation of interferon (IFN)-α,
oligoadenylate synthetase (OAS), Zn transporter SLC39A4 (ZIP4), but up-
regulation of metallothionein-1 (MT1), as well as the Zn transporters SLC30A1
(ZnT1) and SLC30A5 (ZnT5). In addition, forskolin-induced chloride secretion
and epithelial resistance were controlled at a physiological level in the
Znhigh but not the other groups. Finally, in the Znhigh group, we documented
an earlier and higher systemic TGEV-specific serum antibody response.
CONCLUSIONS: These results suggest that high dietary Zn could provide enhanced
protection in the intestinal tract and stimulate the systemic humoral immune
response against TGEV infection
Застосування інтервальних нормобаричних гіпоксичних тренувань для амеліорації впливу бальнеотерапевтичного комплексу курорту Трускавець на резистентність до гіпоксії та вегетативну нервову систему
В клинико-физиологическом наблюдении за детьми с вегетативной дистонией показано, что дополнение стандартного бальнеотерапевтического комплекса курорта Трускавец интервальной нормобарической гипоксической тренировкой предотвращает снижение теста Штанге и сопутствующее ему усугубление симпатотонического сдвига вегетативного гомеостаза, а также усиливает положительное влияние бальнеотерапии на тест Штанге, сопровождаемое ваготоническим сдвигом вегетативного гомеостаза.In the clinical-physiological monitoring of children with vegetative dystonia is shown that the addition of standard balneotherapeutic complex spa Truskavets interval normobaric hypoxic training prevents the reduction of the hypoxic test Stange and the concomitant worsening sympathotonic shift of vegetative homeostasis, but also enhances the positive effect of balneotherapy on the test Stange, accompanied by a shift of autonomic vagotonic homeostasis
Design of design: Learning dynamics in design degree
Though different College’s curriculums in Design point to different objectives, there may be low awareness about different stakeholder’s real needs in issues like design relevance, planning, production, marketing, selling and recycling of designed products. The curricular programs include the approximation of the Design students (DS) to the job market with the purpose of professional success. However, the labor-market-approach focus must also include the challenge of entrepreneurship, based on the transformation of DS projects into competitive products. Having in mind the relevance of the analysis of DS entrepreneurship predisposition, and the need to stimulate this target to transform the DS skills in order to develop business, this paper intends to: (1) profile the DS regarding their entrepreneurial competencies and capabilities, and (2) to know how to tailor Design curriculum and proposing tools (Canvas) in order to develop/align new DS skills for development/implementation of business projects.info:eu-repo/semantics/acceptedVersio
EO-ALERT: A Novel Architecture for the Next Generation of Earth Observation Satellites Supporting Rapid Civil Alerts
The EO-ALERT project proposes the definition and development of the next-generation Earth Observation (EO) data processing chain, based on a novel flight segment architecture that moves opti-mised key EO data processing elements from the ground segment to on-board the satellite, with the aim of delivering EO products to the end user with very low latency. EO-ALERT achieves, globally, latencies below five minutes for EO products delivery, and below 1 minute in some scenarios. The proposed archi-tecture combines innovations in the on-board elements of the data chain and the communications, namely: on-board reconfigurable data handling, on-board image generation and processing for the generation of alerts (EO products) using Artificial Intelligence (AI), on-board AI-based data compression and encryption, high-speed on-board avionics, and reconfigurable high data rate communication links to ground, including a separate chain for alerts with minimum latency and global coverage. This paper pre-sents the proposed architecture, its performance and hardware, considering two different user scenarios: ship detection and extreme weather nowcasting. The results show that, when implemented using COTS components and available communication links, the proposed architecture can deliver alerts to ground with latency below five minutes, for both SAR and Optical missions, demonstrating the viability of the EO-ALERT concept
A Novel Satellite Architecture for the Next Generation of Earth Observation Satellites Supporting Rapid Alerts
The EO-ALERT European Commission H2020 project proposes the definition, development, and verification and validation through ground hardware testing, of a next-generation Earth Observation (EO) data processing chain. The proposed data processing chain is based on a novel flight segment architecture that moves EO data processing elements traditionally executed in the ground segment to on-board the satellite, with the aim of delivering EO products to the end user with very low latency. EO-ALERT achieves, globally, latencies below five minutes for EO products delivery, and below one minute in realistic scenarios.
The proposed EO-ALERT architecture is enabled by on-board processing, recent improvements in processing hardware using Commercial Off-The-Shelf (COTS) components, and persistent space-to-ground communications links. EO-ALERT combines innovations in the on-board elements of the data chain and the communications, namely: on-board reconfigurable data handling, on-board image generation and processing for the generation of alerts (EO products) using Machine Learning (ML) and Artificial Intelligence (AI), on-board AI-based data compression and encryption, high-speed on-board avionics, and reconfigurable high data rate communication links to ground, including a separate chain for alerts with minimum latency and global coverage.
This paper presents the proposed architecture, its hardware realization for the ground testing in a representative environment and its performance. The architecture’s performance is evaluated considering two different user scenarios where very low latency (almost-real-time) EO product delivery is required: ship detection and extreme weather monitoring/nowcasting. The hardware testing results show that, when implemented using COTS components and available communication links, the proposed architecture can deliver alerts to the end user with a latency below five minutes, for both SAR and Optical missions, demonstrating the viability of the EO-ALERT architecture. In particular, in several test scenarios, for both the TerraSAR-X SAR and DEIMOS-2 Optical Very High Resolution (VHR) missions, hardware testing of the proposed architecture has shown it can deliver EO products and alerts to the end user globally, with latency lower than one-point-five minutes
Low mass dilepton production at the SPS: probing hot and dense nuclear matter
CERES and HELIOS-3 have detected a significant enhancement of low--mass dileptons in nuclear collisions at 200 GeV/nucleon with respect to the expected ``conventional'' sources. The onset of the excess, starting at a mass of , and the possibility of a quadratic dependence on the event multiplicity suggest the opening of the annihilation channel. This would be the first observation of thermal radiation from dense hadronic matter. Possible interpretations of these results are presented, including the reduction of the mass due to partial restoration of chiral symmetry in the dense fireball formed in the collision
Head of State of Exception
During the escalation of the “German Autumn” in 1977 the Federal German government resorted to a specific form of crisis management that had been described as an undeclared state of exception. It was Federal chancellor Helmut Schmidt in the first place who oversaw the anti-terrorist measures in the situation room where the executive branch ruled for six weeks beyond any parliamentary control. This article examines the role that Helmut Schmidt had played for the creation of a “subjective state of exception” (Julius Hatschek) and how this could be seen as stemming from Schmidt’s earlier experiences and handling of crisis situations dating back to the 1960s. In this regard it has to be asked with Giorgio Agamben, if in the West German case, the state of exception had become the rule
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