Miracle-dz/UniFAR-FTUs huggingface dataset:
Fulfilment of Criteria of Electricity Supply Reliability in the Baltic Region

Fulfilment of Criteria of Electricity Supply Reliability in the Baltic Region The paper analyses the reliability of power supply for a 330/750 kV electrical ring. Consideration is also given to the influence of emergency automatics on the maximum permissible power flows in different electrical connection points of the ring as well as to the application of reliability criterion (N-1) in the case of using the emergency automatics to limit post-accident power flows in these points. The authors discuss the role of operative and technological management in securing the power supply reliability. They also analyze situations with disconnection of major generation units and its influence on the blackout development. Par Elektroapgādes Drošuma Kritēriju Izpildi Baltijas Valstu Regionā Šajā rakstā dota 330 kV un 750 kV elektriskā gredzena drošuma problēmu analīze un novērtējums. Pielietoto automātikas iekārtu ietekme uz maksimāli pieļaujamām jaudas plūsmām elektriskā gredzena atsevišķos šķēlumos. Drošuma kritērija (N-1) pielietojums gadījumos, ja tiek izmantotas pretavārijas automātikas, kas ierobežo pēcavārijas jaudas plūsmas elektriskos šķēlumos. Operatīvās un teh-nologiskas vadības loma elektroapgādes drošuma kritēriju paaugstināšanai. Lielu generējošo jaudu avārijas atslēgšanās iespējas un ietekme totālās avārijas izraisīšanai.
Influence of the composition of powder-type SCC on conversion factors for compressive strength

Depending on practical considerations and standards, different types of test specimens are used for the determination of the uniaxial compressive strength of concrete. Appropriate conversion factors, also referred to as shape factors, are needed to convert the compressive strength as determined on one type of specimen to the equivalent compressive strength of another type of specimen. As such shape factors for vibrated concrete are influenced by the composition of the concrete, questions arise concerning the factors that affect the shape factors for powder-type self-compacting concrete (SCC). This paper describes the findings of an extensive research programme performed by three laboratories on the influencing parameters of the shape factors for SCC. Concrete composition parameters such as powder content, cement/powder ratio, water/cement ratio and the type of coarse aggregates, cement, filler and plasticiser appear to have little effect on the experimentally obtained shape factors. Any possible influence on compressive strength was overshadowed by experimental scatter.
COMPARISON OF SPRINTING MECHANICS OF THE DOUBLE TRANSTIBIAL AMPUTEE OSCAR PISTORIUS WITH ABLE BODIED ATHLETES

The purpose of this study was to examine the overall kinetics and the kinetics at the joints of the lower limb while sprinting at maximum speed, and to compare the data of a double transtibial amputee (OP) and able-bodied controls running at the same level of performance. One double transtibial amputee, and five able-bodied sprinters participated in the study. The athletes performed submaximal and maximal sprints on an indoor track embedded with 4 Kistler force plates while recorded with a 12 camera Vicon 624 system. OP displayed lower mechanical work (stance phase), external joint moments and joint power at the hip and the knee joints while displaying higher values of joint power at the (prosthetic) ankle joint compared to able-bodied athletes. The mechanical work at the knee joints was 11 times higher in the negative phase and 8.1 times higher in the positive phase during stance in the able-bodied athletes compared to OP.
The Effect of Urban Form and Residential Cooling Energy Use in Sacramento, California

The impact of urban form on residential space-conditioning energy use has been controversial in recent planning literature. This study empirically evaluates the association between urban form and residential energy use, focusing particularly on residential electricity use for space cooling in the City of Sacramento, California. We characterize urban form, property conditions, and demographic and socioeconomic characteristics by applying spatial metrics embedded within a geographic information system where LiDAR data effectively include each building and the surrounding vegetation. A statistical model is applied to assess the relationship between these explanatory variables and the estimated summer air-conditioning energy use. Controlling for other variables, higher population density, east—west street orientation, higher green space density, larger vegetation on the east, south, and especially the west sides of houses, appears to have statistically significant effects on reducing summer cooling energy use. This study quantifies the built environment impact on the energy demand of air conditioning and informs planners as they craft urban planning and design policies for energy conservation.
Unsupervised Performance of the CogState Brief Battery in the Brain Health Registry: Implications for Detecting Cognitive Decline

The feasibility and validity of unsupervised, longitudinal brief computerized cognitive batteries is unknown. Participants aged 56–90 (N = 19476) from the Brain Health Registry (BHR) completed the CogState Brief Battery (CBB) at 6-month intervals over a period of 5 years. We used linear mixed-effects models to assess whether cross-sectional and longitudinal performance on CBB within BHR was associated with demographic and cognitive characteristics. We also defined a group of CBB decliners based on subject-specific slopes and estimated associations between decliner status and participant characteristics. We found weak associations between longitudinal change in CBB and participant characteristics. Cross-sectional CBB scores were significantly associated with participant characteristics such as age, gender, ethnicity, self-reported disease status, and memory concern. CBB decliners were more likely to self-report mild cognitive impairment (MCI) and memory concerns. Cross-sectional, remote CBB shows evidence of construct validity, but our results suggest that longitudinal assessment may not provide additional value for identifying those at risk for and with cognitive impairment.
An Economic Risk Analysis in Wind and Pumped Hydro Energy Storage Integrated Power System Using Meta-Heuristic Algorithm

Due to the restructuring of the power system, customers always try to obtain low-cost power efficiently and reliably. As a result, there is a chance to violate the system security limit, or the system may run in risk conditions. In this paper, an economic risk analysis of a power system considering wind and pumped hydroelectric storage (WPHS) hybrid system is presented with the help of meta-heuristic algorithms. The value-at-risk (VaR) and conditional value-at-risk (CVaR) are used as the economic risk analysis tool with two different confidence levels (i.e., 95% and 99%). The VaR and CVaR with higher negative values represent the system in a higher-risk condition. The value of VaR and CVaR on the lower negative side or towards a positive value side indicates a less risky system. The main objective of this work is to minimize the system risk as well as minimize the system generation cost by optimal placement of wind farm and pumped hydro storage systems in the power system. Sequential quadratic programming (SQP), artificial bee colony algorithms (ABC), and moth flame optimization algorithms (MFO) are used to solve optimal power flow problems. The novelty of this paper is that the MFO algorithm is used for the first time in this type of power risk curtailment problem. The IEEE 30 bus system is considered to analyze the system risk with the different confidence levels. The MVA flow of all transmission lines is considered here to calculate the value of VaR and CVaR. The hourly VaR and CVaR values of the hybrid system considering the WPHS system are reported here and the numerical case studies of the hybrid WPHS system demonstrate the effectiveness of the proposed approach. To validate the presented approach, the results obtained by using the MFO algorithm are compared with the SQP and ABC algorithms’ results.
Disposable Black excellence: A book review of Sekile M. Nzinga’s Lean semesters: How Higher Education Reproduces Inequity

Although Black women’s graduate degree attainment has nearly doubled since 2000, Sekile M. Nzinga’s Lean Semesters provides a complex picture into this social reality in academia, with the central argument that American higher education operates as a hyper-producer of inequity for marginalized populations, particularly academic women of color. Additionally, since Black women are overrepresented both as adjunct faculty and as Black academics in the south, the author utilizes faculty interview data and national survey data to frame this issue as not only shaped by race, class, and gender but also a regional problem. Lean Semesters is a unique contribution to the critical university studies literature that reveals how Black excellence and Black education are also conceptions through which we understand Black labor.
Simulation and Modelling of Transient Electric Fields in HVDC Insulation Systems Based on Polarization Current Measurements

Simulating and modelling electric field dynamics in the insulation of medium- and high-voltage DC electrical systems is needed to support insulation design optimization and to evaluate the impact of voltage transients on ageing mechanisms and insulation reliability. In order to perform accurate simulations, appropriate physical models must be adopted for the insulating material properties, particularly conductivity, which drives the electric field in a steady-state condition and contributes to determining the field behavior during voltage and load transients. In order to model insulation conductivity, polarization, and conduction, mechanisms must be inferred through charging and discharging current measurements, generally performed at different values of electric field and temperatures in flat specimens of the material under study. In general, both mechanisms are present, but one of them may be predominant with respect to the other depending on type of material. In this paper, we showed that models based on predominant polarization mechanisms were suitable to describe impregnated paper, but not polymers used for HV and MV DC insulation. In the latter case, indeed, trapping–detrapping and conduction phenomena were predominant compared to polarization, thus conductivity models had to be considered, in addition to or as a replacement of the polarization model, in order to carry out proper electric field simulations.
A Dynamic Model of Productivity Enhancement in the Thai Food Industry

Abstract: The concept of productivity has received growing attention, both in the manufacturing and service industries. This study develops a productivity dynamic model to capture the interactions between the key productivity factors over a period of time, and assess the current productivity maturity level of an organization, so that an organization can plan for productivity improvement. Five productivity factors were used for the productivity dynamic model development. Simulation results reveal that an organization that does not actively address productivity should primarily focus on enhancing the “leadership” and “people” factors to successfully progress through to higher maturity levels. An organization can use the simulation with different strategies to identify the most effective policy to improve its productivity.
A Robot-Assisted Surgery Positioning Method for Artificial Cervical Disc Replacement

Robotic–assisted surgery is a new trend in medicine. To overcome problems in artificial cervical disc replacement surgery, a robot-assisted surgery system which consists of an active 6-UPS parallel robot and its control system, a surgical planning system and an optical tracking system was developed to replace the cumbersome mechanical positioning device. A positioning method for robot-assisted cervical disc replacement surgery will be studied. Firstly, the robot-assisted surgery system is described. Secondly, the coordinate transformation method for robot-assisted surgery positioning is given. Then, a preoperative position and pose planning method is given. Finally, a robot-assisted surgery positioning by using the method in this paper is carried out. The result shows that the robot-assisted surgery positioning method in this paper is an effective method for artificial cervical disc replacement surgery.
ETIPS

Abstract Field experiences are identified as an important component in the preparation of new teachers. As such, methods to supplement field experiences with pre and post activities that ready preservice teachers to effectively learn from them warrant further examination. This paper presents one tool that has been used successfully to improve preservice teachers' instructional decision-making knowledge about technology integration, with the unintended outcome of readying them for field experiences in general.
High-Speed Fault Attack Resistant Implementation of PIPO Block Cipher on ARM Cortex-A

In ICISC’20 conference, PIPO (Plug-In and Plug-Out) was proposed as an efficient block cipher for secure communication in IoT (Internet of Things) environment. Although PIPO equips easily high-order masking implementation because of small non-linear operations and short rounds, PIPO is still vulnerable to fault attack. For resisting the fault attack, block cipher implementation should be applied to the fault attack countermeasure. However, these techniques make the performance of computationally-intensive cryptographic algorithms slower in constrained devices. To improve this, we propose the first fast and secure software of PIPO block cipher co-designed with ARM/NEON processor for high-speed secure communication. For accelerating the performance, we present an optimal implementation of PIPO block cipher in ARM/NEON processor, respectively, and design the Interleaved way utilizing two cores. With the proposed optimal techniques, we provide the high-speed secure software. In addition, we present an interleaving random-shuffling technique, which optimizes random-shuffling by utilizing two cores. For ensuring the resistance of fault attacks, we validated the fault resistance with the computation and instruction fault model. We utilize the intra-instruction-redundancy and known ciphertext to detect them. Through the proposed contributions, the fast software for PIPO block cipher achieves the fastest performance than previous related studies. The secure software with the fault countermeasures is nearly 3 times faster than the reference implementation without any fault attack countermeasures. In addition, our secure software achieved performance improvement of 301% and 463% compared to the existing best work (HIGHT and revised CHAM). As a result, our fast and secure software for PIPO block cipher achieved the fastest performance by co-designing with two cores compared to previous work that is utilized only one core. Our software can be utilized for high-speed encrypted communication and CTR-DRBG in ARMv8-based IoT devices.
High-Hydrophilic and Antifouling Poly (Vinylidene Fluoride) Composite Membranes via in Situ Mosaic- Assembled Nanocrystalline Cellulose and g-C3N4

Developing an antifouling and stable separation poly (vinylidene fluoride) (PVDF) membrane for water treatment is of great significance but challenging due to the limitations of its low surface properties and strong hydrophobicity. In this study, a novel multi-block composite ultrafiltration membrane was developed using the mosaic-assembled doping of pineapple leaf nanocrystalline cellulose and g-C3N4. The effects of adding different components on the PVDF composite membrane properties have been analyzed. The surface chemical composition, surface morphology, crystallinity and thermal stability of the composite membranes were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). Both of the tensile strength and elongation length of the PVDF composite membranes were enhanced due to the addition of pineapple leaf nanocellulose and g-C3N4, and the tensile strength and elongation length of PVDF/PEG/g-C3N4/Pineapple leaf nanocellulose composite membrane can reach 10.61 MPa and 8.85 mm. The porosity of the PVDF composite membranes was 46.6%, respectively. The water flux and flux recovery ratio of PVDF/PEG/g-C3N4/Pineapple leaf nanocellulose also can reach 256.75 L/(m2 ⋅h) and up to 82.1%. All the above experimental data showed that the addition of pineapple leaf nanocellulose and g-C3N4 can greatly improve the performance of the PVDF composite membrane. The prepared modified membrane has potential application value in the field of wastewater separation and treatment.
THE IMPACT OF ACTUATED CONTROL ON THE ENVIRONMENT AND THE TRAFFIC FLOW

In our paper, we have analyzed and compared fixed and actuated control at a chosen intersection, where we pointed out the importance of actuated control and its benefits. We have used traffic data from sensors in the roadway. The intersection was modelled in Aimsun, where we performed simulations. The research focused mainly on the impact of actuated control on the basic characteristics of the traffic flow, delay time and emissions. The outputs of simulations showed positive results of actuated control in all compared values. The environmental pollution topic is up-to-date and road transport has a significant impact on it. Furthermore, we want to continue with our research to investigate the impact of speed changes on emission production and the smoothness of the traffic flow under fixed and actuated control.
Wnt Inhibitory Factor 1 Binds to and Inhibits the Activity of Sonic Hedgehog

The hedgehog (Hh) and Wnt pathways, crucial for the embryonic development and stem cell proliferation of Metazoa, have long been known to have similarities that argue for their common evolutionary origin. A surprising additional similarity of the two pathways came with the discovery that WIF1 proteins are involved in the regulation of both the Wnt and Hh pathways. Originally, WIF1 (Wnt Inhibitory Factor 1) was identified as a Wnt antagonist of vertebrates, but subsequent studies have shown that in Drosophila, the WIF1 ortholog serves primarily to control the distribution of Hh. In the present, work we have characterized the interaction of the human WIF1 protein with human sonic hedgehog (Shh) using Surface Plasmon Resonance spectroscopy and reporter assays monitoring the signaling activity of human Shh. Our studies have shown that human WIF1 protein binds human Shh with high affinity and inhibits its signaling activity efficiently. Our observation that the human WIF1 protein is a potent antagonist of human Shh suggests that the known tumor suppressor activity of WIF1 may not be ascribed only to its role as a Wnt inhibitor.
Together alone: complex tourism decisions in couples and random groups

ABSTRACT We conducted experiments to examine how couples handle ill-structured decisions compared to individuals and random groups, and how time pressure affects couples’ performance. The samples included 74 couples and 16 random groups. The results demonstrated that couples performed better than the partners did individually and were able to reach the potential of the two individuals. Random groups of two did not demonstrate the same improvement in problem-solving. When under time pressure, couples were unable to reach a better solution than the average of their two individual solutions. The study gives an insight into how different customer groups make decisions,contributing to adventure tourism and extreme tourism businesses in terms of implications for tourists’ activity planning and safety.
Power to the People: A Beginner’s Tutorial to Power Analysis using jamovi

Authors have highlighted for decades that sample size justification through power analysis is the exception rather than the rule. Even when authors do report a power analysis, there is often no justification for the smallest effect size of interest, or they do not provide enough information for the analysis to be reproducible. We argue one potential reason for these omissions is the lack of a truly accessible introduction to the key concepts and decisions behind power analysis. In this tutorial, we demonstrate a priori and sensitivity power analysis using jamovi for two independent samples and two dependent samples. Respectively, these power analyses allow you to ask the questions: “How many participants do I need to detect a given effect size? ”, and “What effect sizes can I detect with a given sample size? ”. We emphasise how power analysis is most effective as a reflective process during the planning phase of research to balance your inferential goals with your available resources. By the end of the tutorial, you will be able to understand the fundamental concepts behind power analysis and extend them to more advanced statistical models.
An Instrument for Measuring Engineering Education Quality from Students' Perspective

The objective of this article is to develop an instrument for measuring the customer-perceived quality of higher engineering education. Therefore, the critical determinants of education service quality are identified and a unique instrument is presented. Data were collected from students of public and private engineering institutions in South India, and the instrument framework was empirically tested for unidimensionality, reliability, and construct validity using a confirmatory factor analysis approach. The study has established the relationship among education service quality, customer value, and customer satisfaction. The instrument can be effectively used in engineering institutions to enhance the quality of education.
Three Solar Irradiance Proxies for Aperture Photoelectron Detections in Top‐Hat ESAs Coated With Ebonol‐C

Decades after the introduction of top‐hat electrostatic analyzers (ESAs) to experimental space plasma physics, photoelectron noise in apertures of low‐energy electron instruments continues to be an issue in instrument performance. The photoelectrons at each portion of measured phase space distribution can be mapped through laboratory and in‐flight testing, and have been for many missions. In flight, the photoelectrons are a response to dynamic solar EUV spectral intensities which vary over the course of a solar cycle and even within a solar rotation. This paper outlines three solar irradiance proxies that can be used to scale a map of photo‐electron locations in phase space in order to account for dynamic solar activity. These proxies apply to top‐hat ESAs coated with Ebonol‐C (the most common coating) used by missions such as MMS, Solar Orbiter, the Van Allen Probes, and Juno. These proxies are discovered by searching possible wavelengths for correlation with an independent algorithm for MMS/FPI (Magnetospheric Multiscale Mission/Fast Plasma Instrument) which automatically determines the scaling factor. The three wavelengths that serve as viable proxies are found to be: 17.5, 30.5, and 37.5 nm.