Miracle-dz/UniFAR-FTUs huggingface dataset:
Web Forensic for Hate Speech Content on Twitter Services using National Institute of Standard Technology Method

Technological developments in addition to bringing many positive impacts also have negative impacts. The sophistication of various applications today allows the increase in crime cases online. These cases include gambling online, spreading hoax news, fraud, hate speech, cyberbullying, cyberporn, and other cyber cases. These crimes online are very often found in various social media applications, one of which is the Twitter application which is a social networking site that allows users to share things or events that are happening around the world. Users post tweets that can contain photos, videos, links, and text. This research conducts forensics on the Twitter application accessed via the web browser Chrome as the browser with the most users in Indonesia in 2020 according to Stat Counter. The research was conducted using case scenarios based on original cases obtained from various sources. The stages used in this research are the stages from the National Institute of Standards and Technology. These stages are collection, examination, analysis, and reporting. The process of collecting digital evidence is carried out using several forensic tools, namely Belkasoft RAM Capturer, FTK Imager, Browser History Capturer, and Browser History Viewer. This research produces digital evidence in the form of tweets previously deleted or posts that can be retrieved, along with other data. The percentage of results of the digital evidence that has been found successfully 100%. InBelkasoft RAM Capturer and FTK Imager is 50% with digital evidence of text posted, username, password, and web browser history. In Browser History Capturer and Browser History Viewer is 50%with digital evidence of image posted, web browser history, profile photo of the twitter account, and time accessed. The results of this research managed to find evidence of posts that have been deleted.
LoopBreaker: Disabling Interconnects to Mitigate Voltage-Based Attacks in Multi-Tenant FPGAs

FPGAs are being offered in the cloud as accelerator resources that can be shared among multiple users (i.e. tenants). Recently, various approaches have shown that fault attacks launched from one tenant region to another are possible, leading to timing faults or crashes of the FPGA. It is, therefore, important that malicious tenants are limited in their ability to cause such security problems. So far, the existing countermeasures against such attacks check the configuration bitstreams before they are reconfigured. Such offline approaches have various practical limitations, e.g. they may force the tenants to unveil their design secrets. In this paper, we present LoopBreaker, a novel runtime solution that can disable the entire activity of a malicious tenant region, in order to rapidly stop a potential attack before it results in a crash (i.e. Denial-of-Service). We implemented and tested multiple attack types and found that realistic attacks demand at least 12–26 µs to be successful. A partial reconfiguration to overwrite the malicious tenant region demands 200 µs in our realworld implementation, which is too slow to prevent the attack from leading to a crash. Instead, our proposed LoopBreaker method only needs 1.5 µs to stop a malicious tenant, which makes it the first online approach that can successfully stop challenging voltage drop-based attacks from causing a crash.
Vehicle Management System Using RFID

The main purpose of this study was to provide a repository area for all registered vehicle in an organized and systematic filing, archiving and reports can be printed in real time. The system can prompt the users that the validity permit of radio frequency identification tag will be expired and need for renewal. Specifically, this paper sought to design and develop the Vehicle Management System Using RFID and evaluated its level of usability and performance as perceived by the target users. A total of 189 respondents participated in the study that was composed of five experts, three employees and 181 students, faculty and staff registered for School Year 2017-2018 using a standard questionnaire International Standard Organization/International Electrotechnical Commission 25010. Descriptive research was employed on this study based on the set objectives. Findings of the study, revealed that the functionality, the level of usability and its performance were interpreted as Very Good. These findings suggested that respondents were impressed in terms of easiest registration and monitoring of the registered vehicles that enters in and out of Northern Iloilo Polytechnic State College, Main Campus.
Add-drop filters based on asymmetric high-order microring resonators

Add/drop filters are key components of Wavelength Division Multiplexing (WDM) communication systems. Free spectral range(FSR) is a key parameter for Add/drop filters, the FSR should operate within the entire C-band (1530-1562nm). And flat-top drop-port response with a sharp rolloff is also import, Flatness of the passband, sharp roll-off from passband to stop band are necessary to minimize the pulse broadening and the packing efficiency of wavelength channels. In this paper, we proposed an asymmetric approach to design high-order microring filters, The aim is to achieve large extension ratios and adequate suppression of the spurious interstitial mode, meanwhile, flat-top and steep-side response in filter could be obtained by this approach. Our simulation results showed an extended FSR of 40nm, reducing the interstitial peak suppression from 5dB to 35dB and a boxlike filter response with sharpe factor(SF) of 0.68. And a quality-factor of 2961 and a 3-dB bandwidth of 0.52nm is achieved.
LA RENTABILIDAD ECONÓMICA EXPLICADA A TRAVÉS DEL TAMAÑO. LAS EMPRESAS DE INGENIERIA CIVIL EN ESPAÑA

La cuenta de resultados, tomada en valores absolutos, no permite identificar la eficiencia organizativa ni en la utilizacion de recursos, motivo por el que se utiliza, entre otros indicadores, la rentabilidad economica. En este trabajo se han determinado tres formas de calcular la rentabilidad economica, poniendo en relacion el resultado de explotacion con el tamano organizativo. Para ello, se han utilizado tres variables de tamano: el total de inmovilizado, el numero medio de empleados en el ejercicio y los ingresos de explotacion. Estas consideraciones permiten plantear el doble objetivo de esta investigacion, que se ha centrado en un sector de indudable importancia en Espana, el de la ingenieria civil. Por un lado, se pretende realizar una categorizacion de las empresas de ingenieria civil espanolas en funcion de su rentabilidad economica, de modo que se puedan identificar distintos tipos de empresas en este sector segun su grado de rentabilidad. Por otro lado, se trata de determinar que indicadores de tamano organizativo ayudan a explicar la pertenencia a cada una de las categorias de empresas establecidas. Los resultados obtenidos muestran tres grupos de empresas en el sector considerado, que se han denominado estrella, avanzado y peloton. Para cada uno de estos grupos se ha determinado cual es la relacion existente entre los diferentes indicadores de tamano y la pertenencia a cada uno de estos grupos; observando que las empresas estrella tienen una relacion positiva con los ingresos de explotacion; las empresas del grupo avanzado tienen una alta rentabilidad en relacion al inmovilizado y menor numero de empleados; mientras que las empresas del grupo peloton se ven afectadas de forma positiva por el numero de empleados y negativamente por los ingresos de explotacion y los activos inmovilizados
Cylindrical metamaterial‐based subwavelength antenna

A subwavelength monopole antenna radiating in the presence of a truncated cylindrical shell, which has a capped top face and is made of a negative permittivity metamaterial, is analyzed numerically by a method of moments for the volume‐surface integral equation on the one hand, and a finite element method on the other hand. It is shown that a center‐fed truncated cylinder, in contrast to an infinite cylinder, provides subwavelength resonances, thus suggesting the possibility of having a subwavelength antenna system. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1496–1500, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24386
Enhancing graduates’ employability through polytechnic–industry collaboration

The unemployability of many Nigerian graduates is somewhat attributable to the existing wide collaboration gap between Nigerian higher education institutions and industry. Against this backdrop, this study explores how Nigerian polytechnics and industry can collaborate to enhance graduates’ employability. Adopting a focus group discussion approach, three focus groups involving 20 people (eight polytechnic lecturers, six National Board for Technical Education officials and six industry executives) participated in the study. Content analysis of the focus group discussions revealed the need to involve industry experts in curriculum development and review to meet today’s job requirements in industry. The need to involve industry experts in teaching certain aspects of the curriculum was also highlighted. The findings further revealed the desirability of exposing students and lecturers to industrial work situations to equip them with workplace skills and experience. Additionally, the study found that a comprehensive collaboration policy framework, funding, commitment, mutual benefits and trust are required to achieve successful polytechnic–industry collaboration. This research demonstrates that effective collaboration between polytechnics and industry will help to improve the employability of graduates. The findings provide policy and practical implications for polytechnics, regulatory bodies, industry and government.
Rotor Failure Diagnosis of Induction Motors by Wavelet Transform and Fourier Transform in Function of the Load

This paper presents two diagnostic methods for the online detection of broken bars in induction motors with squirrel-cage type rotors. The wavelet representation of a function is a new technique. Wavelet transform of a function is the improved version of Fourier transform. Fourier transform is a powerful tool for analyzing the components of a stationary signal. But it is failed for analyzing the non-stationary signal whereas wavelet transform allows the components of a non-stationary signal to be analyzed. In this paper, our main goal is to find out the advantages of wavelet transform compared to Fourier transform in rotor failure diagnosis of induction motors.
Modeling Consumer Preference for Global Positioning System-Based Taxi Dispatching Service: Case Study of Taichung City, Taiwan

Compared with traditional taxi services, a taxi dispatching service based on the Global Positioning System (GPS) provides a higher level of service and safety in transporting customers. This type of new service, however, requires taxi companies and wireless communication companies to take on return-on-investment risks. Whether this new service induces people to use taxi service more often or attracts new riders will influence significantly the decision to invest in the service. This paper identifies primary factors that affect consumer preference for using the new service in Taichung City, Taiwan, by analyzing consumer responses from a survey conducted in that city. Both cluster analysis and structural equation modeling (SEM) techniques were used to analyze the data. The results of cluster analysis established that GPS-based taxi dispatching service would draw customers who value quality of service. The SEM analysis verified that three constructs—vehicle comfort, convenience, and reliability—had positive .
Ultra‐wideband power divider with a notched band using embedded dual‐mode resonators

An ultra‐wideband (UWB) Wilkinson power divider with a notched band is presented. Multisection Wilkinson structure is utilized to realize UWB response. The notched band is introduced using the embedded dual‐mode resonators. The central frequency and bandwidth of the notched band can be adjusted independently by tuning the structural parameters of the embedded dual‐mode resonators. Even and odd analyses are used to analyze the proposed structure. The presented power divider has been developed and measured. The measured notched band is located at 1.78 GHz with an attenuation of greater than 14 dB. The measured results show reasonable agreement with the predicted ones. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2758–2762, 2014
Mahanimbine Improved Aging-Related Memory Deficits in Mice through Enhanced Cholinergic Transmission and Suppressed Oxidative Stress, Amyloid Levels, and Neuroinflammation

Murraya koenigii leaves contain mahanimbine, a carbazole alkaloid, reported with improving cholinergic neuronal transmission and reducing neuroinflammation in the CNS. The current research investigated the effects of mahanimbine on age-related memory deficits, oxidative stress, cholinergic dysfunction, amyloid formation, and neuroinflammation in aged mice (16 months old). Mahanimbine was administered (1 and 2 mg/kg, p.o.) daily to groups of aged mice for 30 days. The Morris water maze (MWM) task was performed to study spatial learning (escape latency (EL) and swimming distance (SD)) and memory (probe test). The levels of malondialdehyde (MDA), glutathione (GSH), acetylcholine (ACh), acetylcholinesterase (AChE), β-amyloid (Aβ1-40 and Aβ1-42), β-secretase (BACE-1), as well as neuroinflammation markers (total cyclooxygenase (COX) and COX-2 expression), were measured from the isolated brain. Mahanimbine reduced the EL time and SD in the MWM test. From the probe trial, the mahanimbine-treated group spent more time in the targeted quadrant related to the age-matched control, which indicated the enhancement of memory retention. From the biochemical tests, the treatment decreased MDA, AChE, Aβ1-40, and Aβ1-42, BACE-1, total COX activity, and COX-2 expression. It also raised the brain GSH and ACh levels in aged mice compared to age-matched control. These results have supported the reversal of memory dysfunctions by mahanimbine in aged mice and hypothesized that it could be a potential target to treat age-related neurodegenerative disease.
Long-term Impact of Formaldehyde and VOC Emissions from Wood-based Products on Indoor Environments; and Issues with Recycled Products

This paper discusses the emission of formaldehyde and VOCs from wood-based panel products and the effect on indoor air quality (IAQ). The formaldehyde concentration monitored in four energy efficient test houses over a 7-year period has been included to illustrate the long-term effect of emissions from E1 wood-based panels used in dwellings. Formaldehyde emissions from wood-based floorboard obtained from investigation of sick buildings are included for comparison. Also discussed was the impact of fitting of a “low formaldehyde emitting” wardrobe in an energy-efficient test house and in an apartment home. The exposure risk of an individual unpacking the packages of the flat-packed wardrobes and during assembly was illustrated by measurement made in a 22 m3 chamber and in a test house. A variety of VOCs can be released from wood-based panels and associated materials. There is also a concern about the possible emission of wood preservative residues, such as pentachlorophenol from products made from contaminated wood sources. To minimise impact of formaldehyde and VOC emissions in homes and other buildings, building developers and designers should insist on certification of products based on available labelling schemes and this is required in some countries for assessment of Green Buildings.
The application of piezoelectricity to watches

Quartz resonators have been adapted for communications, but in recent years mostly for wristwatches and clocks, since the quartz-oscillator circuit which incorporates a piezoelectric quartz crystal resonator has a very stable frequency. Thanks to quartz resonators, time accuracy of wristwatches has been improved rapidly. Quartz resonators for wristwatches and clocks amount to over 60% of total quartz resonators manufactured in Japan. This paper touches upon the characteristics, details of technical advancement, the analysis methods, the manufacturing technique and finally the future trend of quartz resonators for wristwatches.
Detection of Impact Location and Magnitude for Isotropic Plates Using Neural Networks

A neural network-based method of determining the location and magnitude of trans-verse impact events on isotropic plates is investigated experimentally. Time data from four sensors mounted in the corners of an aluminum plate was processed to provide inputs for two backpropaga-tion neural networks. The first neural network was responsible for detecting impact location. After 1 million iterations of training, this neural network was able to locate impacts with an average RMS error of 1.55 radial centimeters on a 58.5 centimeter by 36.8 centimeter (23 inch by 14.5 inch) fully-clamped plate. The second neural network was responsible for impact magnitude detection. This neural network was able to determine the impact magnitude with an average of 13.8% error.
Excellent cross-talk isolation, high-Q inductors, and reduced self-heating in a TFSOI technology for system-on-a-chip applications

In this paper, novel structures are reported to improve the cross-talk isolation, the performance of on-chip inductors, and the self-heating in a thin-film silicon-on-insulator (TFSOI) technology. In these structures, p/sup +/ substrate contact rings are used to improve the cross-talk isolation, appropriately doped TFSOI layers are used for high-Q inductors, and source contacts connected to the substrate are used to minimize the self-heating problem. The p/sup +/ substrate contact rings provide -57 dB isolation (typically characterized for a device spacing of 100 /spl mu/m) at 10 GHz, which is the best ever reported in TFSOI technology. A maximum Q-factor of 10.4 is obtained for TFSOI-layer shielded on-chip inductors. The inductor-to-inductor isolation is -62 dB (for a spacing of 100 /spl mu/m) at 10 GHz, which is close to the ideal isolation of the open probes. The source contacts connected to the substrate improves the self-heating by 16%. The excellent cross-talk isolation performance, high-Q on-chip inductors, and reduced self-heating make the TFSOI technology a very suitable candidate for mixed signal system-on-a-chip (SOC) applications.
Supplier partnerships for effective advanced manufacturing technology implementation: a proposed model

Discusses a proposed model which presents various possible modes of behaviour during the implementation of advanced manufacturing technology (AMT) and highlighting different interaction approaches between suppliers and users of technological innovation. Presents three models of interaction processes covering different technological settings and argues for their limited applicability in the context of AMT innovation. Discusses the proposed model and its applicability to a wide range of organisational settings and covering different types of technological systems of varying degrees of complexity. The model is based on a comprehensive research project. This is based on empirical evidence originating from the study of 30 organisations representing ten suppliers and 20 users. By scrutinising the various modes of interaction during the implementation of various technological innovations, various key factors have been highlighted, which are thought to be influential in the degree of success or otherwise for the implementation of AMT. In all, seven different types of innovation were scrutinised, including: plastics injection moulding machines; CNC machines; computerised information systems; flexible manufacturing systems; material handling and supply; CADCAM; automated control systems.
Virtual integrated performance measurement

Refers to the increasing interest in the development of theoretical frameworks in the area of performance measurement. Companies have used them as a way of testing different business policies and strategies as well as measuring their performance. Literature shows that these frameworks are not providing an effective and robust measurement system, which is needed more than before in today’s dynamic market. For example, the existing frameworks do not relate to the actual strategies in place and none of them can be considered generic, which makes any attempt of integrating performance measurement virtually impossible. Discusses this problem and puts forward a solution. Describes briefly a proposed framework and explains in more detail a computer‐based system to select performance measurement to support the implementation process of this framework.
GESTIÓN DE UN PROYECTO DE I+D+i EN EL ÁREA DE NANOTECNOLOGÍA

El proyecto tiene como objetivo general el desarrollo de cadenas de valor que se sustenten en la comercializacion de productos formulados a partir de materiales de alto valor agregado basados en matrices polimericas, mediante el agregado de NANO-ARCILLAS modificadas incluyendo las etapas de laboratorio, escala piloto y pre-comercial. En el proyecto interactuan el sector industrial, el ambito academico y el estado a traves de sus areas de fomento al desarrollo cientifico tecnologico. Si bien en la etapa inicial se utilizo la metodologia clasica de Gestion de Proyectos siguiendo los lineamientos del PMBOK surgio la necesidad de aplicar otra metodologia complementaria para el trabajo diario. Los proyectos de I+D+i piden basicamente rapidez y calidad, pero para asumir estos retos, es necesario tener agilidad y flexibilidad. Para ello se implemento la metodologia agil SCRUM. La misma esta basada en un proceso constructivo iterativo e incremental donde las iteraciones tienen duracion fija pero corta que permite hacer entregas parciales que se van complementando en funcion del avance del proyecto. Este proyecto requiere, como otros de I+D+i, la ejecucion de diversos ensayos de laboratorio cuyos resultados determinan los posteriores cursos de accion. Para ello se requeria una metodologia que estuviera focalizada en la realizacion de las tareas que integran las distintas fases de desarrollo del proyecto asi como una mayor capacidad de respuesta al cambio frente al seguimiento del plan. Se encontro que aplicando esta metodologia se puede responder de manera eficiente a los cambios en los productos en desarrollo y se mejoraba la previsibilidad a traves de una mejor gestion del riesgo.