Miracle-dz/UniFAR-FTUs huggingface dataset:
On the Role of Interconnection Directionality in the Quadratic Performance of Double-Integrator Networks

This article provides a quantitative and qualitative evaluation of the role of interconnection directionality in a general class of quadratic performance metrics for double-integrator networks. We first develop an analysis framework that can be used to evaluate the quadratic performance metrics of networks defined over a general class of directed graphs. A comparison between systems whose directed graph Laplacians are normal and their undirected counterparts unveils an interplay between the interconnection directionality and the control strategy that determines network performance. We show that directionality can significantly degrade performance; however, well-designed feedback can exploit directionality to mitigate this degradation or even improve performance.
Introduction of falling friction coefficients into curving calculations for studying curve squeal noise

In this paper, a method of introducing falling friction coefficients into curving simulations for studying curve squeal noise is presented. Generation of squeal at the wheel of a railway vehicle in a curve is caused by unstable vibration, caused in turn by a lateral wheel/rail force which reduces with increasing lateral creepage. To model vehicle curve squeal, the wheel/rail tangential force in the curving simulation is calculated by a modified version of FASTSIM, which uses a sliding velocity-dependent friction characteristic. Using the falling friction characteristics, a UK passenger vehicle is modelled with SIMPACK. Curving behaviour is simulated for a range of curve radii and cant deficiencies. The wheel/rail contact properties are then obtained to study the possibility of the occurrence of squeal using a frequency-domain method. The methodology in this paper allows various curves, wheel/rail profiles, vehicle speeds and friction characteristics to be taken into account.
Research Article: Comparative histomorphology of epidermis of head and caudal peduncle in Otolithes ruber, Huso huso and Pangasius hypophthalmus fish

Three species of fish including, macroscopic scaled fish as Otolithes ruber, microscopic scaled sturgeon as Huso huso and free scaled cat fish as Pangasius hypophthalmus were prepared and specimen of dorsal of head and caudal peduncle were carried out. Routine procedures of tissues preparation followed and paraffin sections stained with (H&E) and (PAS). Results showed, epidermis formed non keratinized stratified squamous epithelium with epidermis, lymphocytes, goblet cells, taste bud and club cells. The epidermis thickness of the head skin was higher than that of the caudal peduncle, as demonstrated by image analysis using light microscopy. Goblet cells were along the superficial cells layers and their distributions were varied. Corresponding author's Email: abdir351@gmail.com In histomorphometric studies by PAS staining the highest number of these cells were seen in head of O. ruber and the lowest were seen in the caudal peduncle of P. hypophthalmus. Most of them were seen from the middle to surface layer of the epidermis. Club cells, with large nucleus, mostly evident in the deep and middle layer of the epidermis, being the largest cells within the epithelium. The highest numbers of these cells (61.8 ± 2.16) were found in head region of P. hypophthalmus. Taste buds as a sensory organ were not seen in caudal peduncle of O. ruber and H. huso. Based on the results of this study, epidermis had similarities in cell type and differences in their numbers that could be justified by the presence or absence of scales.
Some SIF's evaluations by Dual BEM for 3D cracked plates

Purpose: of this work is to provide a numerical assessment of 3D crack problems with linear and non-linear loading conditions. Design/methodology/approach: Single-Domain Boundary Element Method and in particular Dual Boundary Element Method (DBEM) is adopted. The method, implemented in a commercial code, uses both the conventional Displacement Integral Equation and the less commonly used Traction Integral Equation. It relies on the use of discontinuous elements to model the cracks, whose Stress Intensity Factors (SIF’s) are calculated by means of the Crack Opening Displacement method (COD). Findings: SIF’s on a circular quadrant crack and a rectangular through crack, initiated from a hole, have been evaluated with reference to single and two hole plates undergoing different linear and non-linear loading conditions. Such complex geometric and loading condition is worked out very efficiently and accurately by DBEM that is strongly recommended for this kind of application in alternative to FEM. Research limitations/implications: Further improvement in the BEASY code will be necessary in order to lighten computational times. The presented analysis provide the basis for further development related to crack propagation analysis and residual strength assessment. Practical implications: The methodology proposed will enable a significant reduction of the experimental effort. Originality/value: The solution of a 3d crack assessment under non linear loading conditions with the possibility of checking the accuracy of the DBEM results against FEM calculus and other approaches (recalled in literature) in order to have a clear assessment of the possible industrial applications with related approximations involved.
Effects of unbalanced voltage on the operation performance of a three-phase induction motor

This paper uses a real load test to investigate the effects of an unbalanced voltage supply on an induction motor's performance. Based upon various experiments, including: (1) cases with the same unbalance voltage factor but different unbalanced voltages; (2) cases with only one unbalanced voltage but different degrees of unbalance; and (3) cases with the same positive-sequence voltage but different negative-sequence voltages, the importance of the positive-sequence voltage in the motor's apparent performance and of the negative-sequence voltage in the hidden damage are pointed out. Finally, it is strongly suggested that the related regulations, and a motor's derating factor and temperature rise curves should be based on not only a voltage unbalance factor, but also the magnitude of the positive-sequence voltage.
Interpersonal Physiological Synchrony for Detecting Moments of Connection in Persons With Dementia: A Pilot Study

Interpersonal physiological synchrony has been successfully used to characterize social interactions and social processes during a variety of interpersonal interactions. There are a handful of measures of interpersonal physiological synchrony, but those that exist have only been validated on able-bodied adults. Here, we present a novel information-theory based measure of interpersonal physiological synchrony—normalized Symbolic Transfer Entropy (NSTE)—and compare its performance with a popular physiological synchrony measure—physiological concordance and single session index (SSI). Using wearable sensors, we measured the electrodermal activity (EDA) of five individuals with dementia and six able-bodied individuals as they participated in a movement activity that aimed to foster connection in persons with dementia. We calculated time-resolved NSTE and SSI measures for case studies of three dyads and compared them against moments of observed interpersonal connection in video recordings of the activity. Our findings suggest that NSTE-based measures of interpersonal physiological synchrony may provide additional advantages over SSI, including resolving moments of ambiguous SSI and providing information about the direction of information flow between participants. This study also investigated the feasibility of using interpersonal synchrony to gain insight into moments of connection experienced by individuals with dementia and further encourages exploration of these measures in other populations with reduced communicative abilities.
Harmful effect of Mocha (Cappucinno) as instant coffee drinks on kidney and heart of Wister albino rats

DOI: 10.21608/svu.2021. 87388.1135 Received: July 25, 2021 Accepted: November 1, 2021 Published: December 9, 2021 *Corresponding Authors: Zeinab Al-Amgad E-mail: zizi_1283@yahoo.com Citation: Al-Amgad and Mahdy, Harmful effects of Mocha (Cappucinno) as instant coffee drinks on kidney and heart of Wister albino rats. SVU-IJVS 2021, 4 (4): 56-67. Copyright: © Al-Amgad and Mahdy. This is an open access article distributed under the terms of the creative common attribution license, which permits unrestricted use, distribution and reproduction in any medium provided the original author and source are created. Competing interest: The authors have declared that no competing interest exists. Abstract
The Mode Analysis of Coherently Coupled Array Based on Proton Implantation

We have designed and fabricated 1×2 VCSEL arrays with different inter-element spacing. Then, through the measurement of the near-fields and far-fields of the VCSEL arrays, the in-phase and out-of-phase mode depending on the inter-element spacing have been analyzed. Finally, the simulated far-field profiles by FDTD Solutions software agree well with the experiments.
Modeling and analysis of GaAs MESFETs considering the wave propagation effect

The effect of wave propagation along the electrodes of a GaAs MESFET is studied using a distributed circuit analysis technique. Each unit equivalent circuit consists of two subequivalent circuits, one modeling the transmission-line properties of the coupled gate and drain electrodes, and the other representing the traditional GaAs MESFET small-signal model. The distributed equivalent circuit is then analyzed using SUPER-COMPACT. The maximum available power gain or the maximum stable power gain of the device is calculated as a function of device width. It is shown that, for single-gate MESFETs over 100 mu m wide, the transmission-line properties of the electrodes have a significant effect on the transistor performance. The power gain also depends on where the input signal is fed and where the output signal is extracted. <<ETX>>
Die Netzschale der Jinji Lake Mall

Für eines der künftig größten Einkaufszentren Chinas in Suzhou hat schlaich bergermann und partner eine 35.000 Quadratmeter große freigeformte Netzschale geplant. Die Herausforderung bestand darin, für den 400 Meter langen Komplex aus vier statisch unabhängigen Gebäuden ein fugenloses Dach in Form von Phoenix‐Schwingen zu realisieren, das großen Relativverschiebungen aus Temperatur‐ und Erdbebeneinwirkungen standhält. Eine aufgrund ihrer Flexibilität vorteilhafte regelmäßige Viereckstruktur wurde mittels eigens entwickelter Modellierungsmethoden gefunden. Dieser digitale Entwurfsprozess ermöglichte die gekoppelte Optimierung von Netz und Tragwerk hin zu einer zugleich harmonischen und filigranen Struktur.
Effect of Multiple Gas Media Package on Preservation of Fresh Sweet Corn at Room Temperature

Effects of different methods of gas package on freshness of harvested fresh Sweet Corn, at room temperature in its shelf life were investigated. The harvested fresh Sweet Corn were packaged under vacuum, air, N2 or CO2, respectively, and then stored 90 days at 30°Cafter the high temperature sterilization. After the sterilization and during storage, the changes of aerobic plate count, water content, soluble sugar content, and TPA were determined. The results showed that compared with others, the package with N2 could inhibit the growth of microorganisms, kept the content of water, soluble sugar and fat. After 90 days, TPA showed that the package in nitrogen could improve the quality of sweet corns.
Desktop virtual reality in the RAF

The Command Scientific Support Branch (CSSB) is a of mixture psychologists and scientists whose role is to give scientific advice to the Royal Air Force (RAF) personnel, training and logistics units. The main emphasis of the work is that of providing cost effective solutions to training and logistic problems. The author discusses a project which investigated the subject of virtual reality (VR) and its potential for use in the RAF. VR was considered by the branch to be an area of interest which showed promise as a new training medium, with its ability to provide a unique, experiential-learning environment (Helsel, 1992). The RAF has sponsored several desktop VR projects in CSSB and is also investigating its use in navigation training within its Training Development Support Unit (TDSU). CSSB has produced two training programs which are being used in RAF training programs: fire prevention training; and aircraft maintenance.
Un sistema di certificazione risk-based per i controlli in agricoltura biologica: un’applicazione tramite Bayesian networks

The existing method of certification in the organic agriculture system, which requires periodic inspection of all operators, is inefficient due to the high cost of these controls. A risk-based decision support system, which could assist the inspection body during the planning of the annual inspection visits, is advocated as being more cost-effective and efficient. The risk-based decision support system is constructed as a Bayesian network; the models incorporate the factors that influence risk of irregularity and analyse their effects by determining probability of noncompliance. Empirical findings, using a sample of Italian data regarding inspection of organic farms, support the idea that the current risk categories used by control bodies in Italy are reasonable, but could be recursively updated by using a Bayesian network model and incremental inspection evidence.
Space-Time Modeling of Plug-In Electric Vehicles

With the shortage of fossil energy and the worrying about environmental problems, renewable energy and electric-vehicle get rapid development. Against this background, an overview of power characteristic of electric vehicles is presented. Monte Carlo method is used to simulate the charging and discharging behavior of electric-vehicles, and the load curve of EVs of different scale is presented. It analyses the charging load characteristic in the uncoordinated charging mode and the discharging capacity curve in the vehicle-to-grid (V2G) mode in this paper. Under the software package of Visual C++ 6.0, it verifies the availability and feasibility through comparison and analysis, which lays a foundation for the large-scale development of electric vehicles.
A Review of Agrogeological resources of Nigeria

The distribution and utilization of agrogeological resources in Nigeria are discussed. These are rocks and minerals applied in agriculture. They occur in a wide variety of environments that range in age from Pre-Cambrian to Recent. The resources may be utilized to solve problems of pH, texture and structure of rocks. Limestone, dolomite and any base-rich materials like carbonatites, as well as basic and ultra basic silicate rocks could be used to correct acidity in soils. The adverse effects of soil alkalinity may be tackled by the application of suphides, for example pyrite and marcasite. Texture can be modified by adding geological materials to the soil that have contrasting grain size. Solid structure may be improved upon by providing a good nutrient base and by encouraging a buildup of organic matter. The resources could also provide essential plant nutrients which include nitrogen, phosphorus, potassium, calcium, magnesium, copper, manganese, iron, molybdenum, sulphur and boron.
ANALYSIS OF DETERMINATION OF THE IMPLEMENTATION ACCRUAL-BASED ACCOUNTING STANDARDS IN LHOKSEUMAWE REGENCY

Implementation of Government Regulation Number 71 of 2010 concerning Government Accounting Standards brought changes in the presentation of government financial statements, which previously used cash-based accounting standards, to accrual-based accounting standards. Cash-based recognizes the recording of transactions and recognition occurs only when cash is out and cash in and does not record liabilities and assets at all. Accrual-based recording is believed to be able to produce financial reports that are more accurate and more reliable, comprehensive and relevant for decision making. In order to support the implementation of a good and competent accrual basis, supporting factors are needed such as human resources, organizational commitment, utilization of information and communication technology. The purpose of this study was to analyze the influence of human resources, organizational commitment, information and communication technology on the application of accrual-based accounting standards in the Lhokseumawe regency. The number of respondents in this study were 68 employees from the SKPK in Lhokseumawe regency, the research data was in the form of primary data with data analysis using multiple linear regression. The results showed that human resources, government commitment, information technology, and communication had an effect on the application of accrual-based accounting standards in Lhokseumawe regency. The number of respondents in this study were 68 employees from the SKPK in Lhokseumawe regency, the research data was in the form of primary data with data analysis using multiple linear regression. The results showed that human resources, government commitment, information technology, and communication had an effect on the application of accrual-based accounting standards in Lhokseumawe regency. The number of respondents in this study were 68 employees from the SKPK in Lhokseumawe regency, the research data was in the form of primary data with data analysis using multiple linear regression. The results showed that human resources, government commitment, information technology, and communication had an effect on the application of accrual-based accounting standards in the Lhokseumawe regency.
A geographic information system-based decision support system (GISDSS) for facility location

Due to the strategic impact of a facility location decision, a location search requires thorough analysis of numerous location factors. The difficulties in multi-factor analysis of location decisions have been challenged by many location researchers. This research study proposes the development of a novel geographic information system-based decision support system (GISDSS) to support high quality decision making in the facility location domain. A review of past location studies was conducted to identify the major considerations for locating a facility and to develop a taxonomy of location factors for Thailand. The GISDSS incorporates a chromatic representation location model and vastly accepted location factors. A geographic information system (GIS) is used with the location model to manipulate data and identify suitable sites. The model analyzes input data and recommends the best locations through the hue, saturation and value (HSV) color model.
A Temperature Compensation Circuit within Constant Current Charging Cycle

A CMOS temperature compensation circuit within constant current charging cycle is proposed in the paper. The circuit is composed by a positive temperature coefficient current source, a current source with zero temperature coefficient and a relevant operational circuit, and can make balance between heat production and dissipation during trickle charging and constant current charging. Finally, with the CSMC 0.5um CMOS process, the simulation can get the temperature characteristic curve of intelligent heat adjusting current. The temperature compensation circuit is especially suitable for the application in different charging system.
A zipper-action differential micro-mechanical tunable capacitor

We present a differential multi-fingered micro-electro-mechanical tunable capacitor. This device is intended to be used in RF IC applications such as filters and VCOs. The device is based on the zipper actuation principle, which allows for potentially wide tuning range. Differential structure is used to improve the quality factor. This capacitor was fabricated in MUMPs polysilicon surface micromachining process and achieves 46% tuning range with tuning voltage of 35 V. A CMOS VCO with this capacitor exhibited tuning range of 4.8% with the center frequency of 1.5 GHz. The phase noise was -131 dBc/Hz at 600 kHz offset from carrier with the output power of 1.6 dBm.
Molecular Methods for Pathogenic Bacteria Detection and Recent Advances in Wastewater Analysis

With increasing concerns about public health and the development of molecular techniques, new detection tools and the combination of existing approaches have increased the abilities of pathogenic bacteria monitoring by exploring new biomarkers, increasing the sensitivity and accuracy of detection, quantification, and analyzing various genes such as functional genes and antimicrobial resistance genes (ARG). Molecular methods are gradually emerging as the most popular detection approach for pathogens, in addition to the conventional culture-based plate enumeration methods. The analysis of pathogens in wastewater and the back-estimation of infections in the community, also known as wastewater-based epidemiology (WBE), is an emerging methodology and has a great potential to supplement current surveillance systems for the monitoring of infectious diseases and the early warning of outbreaks. However, as a complex matrix, wastewater largely challenges the analytical performance of molecular methods. This review synthesized the literature of typical pathogenic bacteria in wastewater, types of biomarkers, molecular methods for bacterial analysis, and their recent advances in wastewater analysis. The advantages and limitation of these molecular methods were evaluated, and their prospects in WBE were discussed to provide insight for future development.
The effects of scum on sewer flows

This paper presents the results of an experimental study on the effects of scum on sewer flows. In this study, experiments were made in a laboratory flume taking into account two different kinds of scum, representative of the real scum typologies, which can be found in sewers: the first kind is mobile scum, made up of oil, grease and small pieces of wood; the second is fixed scum, made up of foam. Experiments have shown the reduction in flow velocity and the increase in water depth due to the presences of the scum, depending on the various hydraulic conditions and the scum characteristics. The experiments allowed the derivation of a correction factor that can be utilized to determine flow velocity reduction under different operational conditions of flow. Engineers can make use of the results of the study in order to design more reliable sewer channels, which do not get surcharged in the presence of scum.