Short-term Optimal Scheduling Model for Hydropower Stations Considering Peak Shaving of Local and HVDC Receiving Power Grids by ZHOU Binbin, ZHANG Congtong, LIU Benxi, CHENG Chuntian, CHEN Kai, WANG Youxiang

“…In the face of the increasingly severe peak shaving pressure on both sending and receiving power grids of the high voltage direct current (HVDC) of large-scale hydropower stations,a short-term optimal scheduling model that takes into account peak shaving of local and HVDC receiving power grids of the cascade hydropower stations has been established.The model aims to minimize the maximum value of residual load in multiple power grids,not only considering the conventional hydraulic and power constraints of the cascade hydropower stations and the complex operation constraints of the HVDC transmission lines but also introducing coupled operation constraints between the HVDC transmission line and the hydropower stations.In the model-solving phase,the original model is transformed into a mixed-integer linear programming model by introducing auxiliary variables to linearize the objective function,hydraulic operation constraints,and HVDC operation constraints and using the big M method to linearize the bi-directional interval coupled constraints between the HVDC transmission line and the hydropower stations.Typical winter and summer days in a large-scale hydropower system in southwestern China are taken as examples,and the results show that the peak-valley difference of the sending power grid has decreased by up to 100%,while the decrease in the peak-valley difference in the receiving end power grid is 28.1% and 31.6%,respectively.It shows that the proposed model can share the flexibility of hydropower through HVDC transmission lines,achieve peak shaving in multiple power grids,and ensure safe operation of the HVDC transmission lines,which can provide a reference for short-term multi-grid peak shaving of large-scale cascade hydropower stations.…”
Get full text

Testing activity of antibiotics by agar diffusion by S. I. Kuleshova

“…The method is based on directly proportional relationship between the size of test microorganisms inhibition zones and log concentration (dose) of the antibiotic in the solution placed onto agar bacterial medium. …”
Get full text

Acute Kidney Injury in Deceased Organ Donors: Risk Factors And Impacts on Transplantation Outcomes by Katarina Jakubov, MD, Vojtech Petr, MD, Ivan Zahradka, MD, Eva Girmanova, MSc, Petra Hruba, PhD, Roman Keleman, MSc, Ondrej Viklicky, MD, PhD

Get full text

Comparison of proximal and distal BCG measurements for blood pressure estimation by Becker Niels, Strotmann Niko, Abusaleh Islam, Kurka Yannick, Wiede Christian, Seidl Karsten

Get full text

Implementation of the Anchor-Based Indirect Comparison Method for Equivalence Margin Derivation in Biosimilar Development by Claudia Hemmelmann, Rachid El Galta, Jessie Wang, Susanne Schmitt, Ramin Arani

“…<b>Background/Objectives</b>: To derive the equivalence margin (EQM), typically, a “classical” meta-analysis on direct within-trial estimation of the effect size of the reference drug compared to the placebo or standard of care is performed: a certain factor of the 95% confidence interval for the pooled treatment effect compared to placebo is used. …”
Get full text

Energy Characterization Method of Resource-efficient Multiple Voltage Thresholds Sampling by WANG Fei, ZHOU Jiawen, CAI Chao

“…In the existing energy characterization methods, the multiple voltage thresholds (MVT) sampling method introduces prior information of pulse signals and combines it with trigger times from multiple reference voltages to achieve direct energy characterization, without any pulse shaping techniques. …”

The first outbreak of brucellosis in the region of Šabac by Marković-Denić Ljiljana, Škodrić-Trifunović Vesna, Žugić Vladimir, Radojčić Dragana, Stevanović Goran

“…Relative risk (RR) of milk consumption was 8.9 (95% confidence interval: 1.63-13.38), and RR for direct contact with animals was 14 (95% confidence interval: 3.5-55.6). …”
Get full text

Feline Leukemia Virus in Cats: A Novel Rapid ELISA Assay for p27 Antigen Detection by Irene Ferrero, Paolo Poletti, Enrica Giachino, Joel Filipe, Paola Dall’Ara

“…The new test was validated by using 112 feline sera (42 positives and 70 negatives for FeLV) against the ViraCHEK/FeLV ELISA (Zoetis) as a reference, which agreed at 97.3%, with 97.6% sensitivity (95% confidence interval (CI): 86.0%–99.9%) and 97.1% specificity (95% CI: 89.1%–99.5%). …”
Get full text

T-lymphocytes of the 2nd type of the immune response and their role in enhancing inflammation during the professional activities of firefighters by N. V. Bychkova, A. A. Kalashnikova, N. M. Kalinina

“…A decrease in secretory IgA in the secret from the nasal passages was observed in 23% of firefighters, in 13% of the examined, the indicator went beyond the upper limit of the reference interval. Significantly more often revealed the deviation of this indicator from the reference values in firefighters with a high workload. …”
Get full text

A Novel Model for Accessibility of Bus Station and Its Application to Bottlenecks Identification: A Case Study in Harbin by Chao Sun, Wei Quan

“…The study presented here adds to our understanding of accessibility in the construction and management of buses and provides an essential reference for the following optimization.…”
Get full text

Technique of experimental definition of optical thickness of the plasma channel by the method of lightening and possibilities of its application for pulsing discharge in water by O. A. Fedorovich

“…Calculation of atoms Na concentration in the channel on values τ, received by the lightening through method, at 4 - 15 times is overestimated in comparison to the values of concentration, received by other independent method. Results of direct measurements of τ by illumination of the plasma channel by reference source ЭВ-45 are overestimated because of features of passage of appearing through radiation through the channel of the discharge in water of the cylindrical form as it represents a disseminating lens. …”
Get full text

Peculiarities of Application of Contact Methods for Measuring the Temperature of Technological Objects by Vasyl Fedynets, Ihor Vasylkivskyi

“…When using the contact method to create the necessary conditions for heat exchange, thermal transducer must be in direct contact with the object of study, the temperature of which must be measured. …”
Get full text

Association between dietary diversity, nutritional status, and academic performance of school-age children in Southeast Ethiopia using structural equation modelling by Girma Beressa, Abera Biratu, Bikila Lencha, Biniyam Sahiledengle, Demisu Zenbaba, Desalegn Bekele, Yohannes Tekalegn, Kenenisa Beressa

“…The SEM revealed that a unit increment in the child’s DDS (unstandardised β = 0.130, 95% CI: 0.049 to 0.211) did have direct and total effects on the HAZ score. However, HAZ score, BAZ score, and DDS did not have direct, indirect, or total effects on AP. …”
Get full text

Translation of the UK Pediatric Influenza Vaccination Programme in Primary Schools to 13 European Countries Using a Dynamic Transmission Model by Laetitia Gerlier, Judith Hackett, Richard Lawson, Sofia Dos Santos Mendes, Martin Eichner

“… # Conclusions Across a range of European countries, our model shows the beneficial direct and indirect impact of a paediatric vaccination programme using QLAIV in primary school-aged children, consistent with what was observed during a single season in the United Kingdom. …”
Get full text

A regional augmented PPP algorithm for offshore considering NWP by Ying Xu, Xiangdan Meng, Jianhui Cui, Lin Ma

“…In offshore areas with inhomogeneous distribution of reference stations, the low accuracy of regional augmented Zenith Tropospheric Delay (ZTD) products directly impacts regional augmented Precise Point Positioning (PPP) convergence time. …”
Get full text

Tolerance Analysis of Antenna Array Pattern and Array Synthesis in the Presence of Excitation Errors by Ying Zhang, DanNi Zhao, Qiong Wang, ZhengBin Long, Xiaofeng Shen

“…Accordingly, the worst admissible performance of an array can be evaluated, which may provide theoretical reference for optimal antenna array design. As for the problem of array synthesis in the presence of various array errors, interval analysis-convex programming (IA-CP) is presented. …”
Get full text

An improved calibration method for magnetic sensor of multipoint inclinometer by Yi ZHANG

“…The influence of the interval of reference points on the calibration results is simulated, and the 108 point calibration method with a calibration interval of 20° is preferred. …”
Get full text

A Wearable Sensor Node for Measuring Air Quality Through Citizen Science Approach: Insights from the SOCIO-BEE Project by Nicole Morresi, Maite Puerta-Beldarrain, Diego López-de-Ipiña, Alex Barco, Oihane Gómez-Carmona, Carlos López-Gomollon, Diego Casado-Mansilla, Maria Kotzagianni, Sara Casaccia, Sergi Udina, Gian Marco Revel

“…PM_2.5 sensor data were validated through two approaches: direct comparison with reference stations and spatial clustering analysis using K-means. …”
Get full text

Establishing the Safety and Efficacy of Bedaquiline-Containing Regimen for the Treatment of Drug-Resistant Tuberculosis: A Systematic Review and Meta-Analysis of Randomized Clinica... by Muhammad Candragupta Jihwaprani, Yipeng Sun, Wahyu Choirur Rizky, Idris Sula, Nazmus Saquib

“…., ClinicalTrials.gov, Cochrane CENTRAL, PubMed, ScienceDirect, and SinoMed) were searched. RCTs among DR-TB patients that had a control arm were eligible. …”
Get full text

Social Deprivation and Incidence of Pediatric Kidney Failure in France by Bénédicte Driollet, Cécile Couchoud, Justine Bacchetta, Olivia Boyer, Julien Hogan, Denis Morin, François Nobili, Michel Tsimaratos, Etienne Bérard, Florian Bayer, Ludivine Launay, Karen Leffondré, Jérôme Harambat

Get full text