Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of data envelopment analysis and deterministic parametric frontier approaches: an application in the Norwegian road construction sector

This paper analyzes efficiency in the Norwegian road sector by using two competing methods. The first is Data Envelopment Analysis (DEA), while the second is Deterministic Frontier Analysis (DFA) with a Cobb‐Douglas kernel specification. Both approaches show similarities with respect to efficiency distribution. The rock‐blasting sectors potential for efficiency improvement is in the range 19–59 percent. Both approaches demonstrate decreasing return to scale properties for the average unit. There is a significant correlation between size and efficiency indicating that larger units perform better than smaller ones. Precautionary blasting mainly performed in densely populated areas is also found to explain much of the variations in efficiency scores. Any policy implication should therefore carefully examine exogenous factors. The main difference between the two approaches, which can be explained by the number of parameters to be determined, concerns level of scores rather than their distribution. However, there are arguments that advocate DEA rather than DFA in the rock‐blasting sector.
Performance analysis and design trade-offs in warehouses with autonomous vehicle technology

Distribution centers have recently adopted Autonomous Vehicle-based Storage and Retrieval Systems (AVS/RSs) as a potential alternative to traditional automated storage and retrieval systems for processing unit-load operations. The autonomy of the vehicles in an AVS/RS provides a level of hardware sophistication, which can lead to the improvements in operation efficiency and flexibility that will be necessary in distribution centers of the future. However, in order to exploit the potential benefits of the technology, an AVS/RS must be designed using a detailed understanding of the underlying dynamics and performance trade-offs. Design decisions such as the configuration of aisles and columns, allocation of resources to zones, and vehicle assignment rules can have a significant impact on the performance of AVS/RSs. In this research, the performance impact of these design decisions is investigated using an analytical model. The system is modeled as a multi-class semi-open queuing network with class switching and a decomposition-based approach is developed to evaluate the system performance and obtain insights. Numerical studies provide various insights that could be useful in the design conceptualization of AVS/RSs.
A Novel Auto-Annotation Technique for Aspect Level Sentiment Analysis

: In machine learning, sentiment analysis is a technique to find and analyze the sentiments hidden in the text. For sentiment analysis, annotated data is a basic requirement. Generally, this data is manually annotated. Manual annotation is time consuming, costly and laborious process. To overcome these resource constraints this research has proposed a fully automated annotation technique for aspect level sentiment analysis. Dataset is created from the reviews of ten most popular songs on YouTube. Reviews of five aspects—voice, video, music, lyrics and song, are extracted. An N-Gram based technique is proposed. Complete dataset consists of 369436 reviews that took 173.53 s to annotate using the proposed technique while this dataset might have taken approximately 2.07 million seconds (575 h) if it was annotated manually. For the validation of the proposed technique, a sub-dataset—Voice, is annotated manually as well as with the proposed technique. Cohen’s Kappa statistics is used to evaluate the degree of agreement between the two annotations. The high Kappa value (i.e., 0.9571%) shows the high level of agreement between the two. This validates that the quality of annotation of the proposed technique is as good as manual annotation even with far less computational cost. This research also contributes in consolidating the guidelines for the manual annotation process.
Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application

We report that we have successfully designed and fabricated a significantly shortened multimode interference coupler for application in polarization splitter, using a phenomenon that we termed "quasi-state" (QS) imaging effect. First, we identified and analyzed the QS imaging effect, and, based on the QS analysis, designed and fabricated a novel multimode interference (MMI) device with its split length shortened to 1/5 of a normally designed MMI split length. The fabrication is simple and cost effective and the fabricated device shows outstanding characteristics in extinction ratio, signal homogeneity, excess loss, and tolerance in the length of the splitter.
Development of state sensors for civil engineering structures

This paper summarizes the ongoing work at the University of Texas to develop wireless sensors to monitor the condition of civil engineering structures. The state sensors will be attached to or embedded in the structures during construction and will be interrogated during routine inspections of the structure. Each sensor comprises two components: a switch to detect the damage within the structure and a resonant circuit to transmit the information to the inspector. Prototype sensors have been developed to detect the presence of cracks in welded steel construction and corrosion in reinforced concrete construction.
Mediterranean Diet and Physical Activity for Successful Aging: An Update for Nutritionists and Endocrinologists

The constant advancement in the medical field has allowed for the diagnosis and treatment of several health conditions. It has also contributed to increasing the average human lifespan, which is considered an outstanding achievement in history. Nevertheless, the impact of this in an ever-increasing aged population with chronic diseases and, most of the time, with limited and poor quality of life was not considered. Thus, it is imperative to establish strategies to age successfully. In order to do have a better understanding of this crucial issue, this review will analyze the endocrine changes in the elderly. It will present common conditions found in this population, chronic inflammation, and oxidative stress. Additionally, we will explain aging-related metabolic and physical performance decline related to hormone changes and lifestyle modifications. We will propose the Mediterranean diet and some specific guidelines about physical activity as part of the plan to have an active and successful aging process.
Evaluation of an Ecological Interface Designed for Military Command and Control

Since the inception of the Force XXI Digitization program, the U.S. Army has fielded numerous systems attempting to use computational technologies to improve command and control of tactical operations. In reality, designers have inadequately considered both the role of the human and the constraints of this complicated work domain in the implementation of these systems. A prototype interface (RAPTOR) was developed to leverage powerful perception-action skills, thereby providing improved decision making and problem solving support. A laboratory experiment was conducted using a synthetic task environment. Sixteen US Army Officers participated in a mixed design experiment that involved two interfaces (RAPTOR and Baseline) and two scenarios (attack and counter insurgency). Dependent measures included situation awareness, decision making, and workload. The results indicate that the RAPTOR interface produced significantly better performance; they provide a strong validation of the theoretical framework (Cognitive Systems Engineering and Ecological Interface Design) and design principles (direct perception and direct manipulation), that guided its development. Applications of this study include specific interface design strategies for military command and control work domains.
Classification of fruits and vegetables using ResNet model.

Abstract Agriculture is one of the important parts of Indian economy. Agricultural field has more contribution towards growth and stability of the nation. Therefore, a current technologies and innovations can help in order to experiment new techniques and methods in the agricultural field. At Present Artificial Intelligence (AI) is one of the main, effective, and widely used technology. Especially, Deep Learning (DL) has numerous functions due to its capability to learn robust interpretations from images. Convolutional Neural Networks (CNN) is the major Deep Learning architecture for image classification. This paper is mainly focus on the deep learning techniques to classify Fruits and Vegetables, the model creation and implementation to identify Fruits and Vegetables on the fruit360 dataset. The models created are Support Vector Machine (SVM), K Nearest Neighbor (KNN), Decision Tree (DT), ResNet Pretrained Model, Convolutional Neural Network (CNN), Multilayer Perceptron (MLP). Among the different models ResNet pretrained Model performed the best with an accuracy of 95.83%.
MUDRAPLAN—A DSS for Media Planning: From Design to Utilization

In advertising, media planning consists of deciding where to advertise, what elements of the medium to choose, and how many insertions should appear in each vehicle. The parameters planners consider are cost and reach. Because the relationships between the variables that make up a media plan are nonlinear and often irregular, media planners have difficulty making good decisions consistently. Also it may be difficult to quantify such parameters as impact and recall. We have mathematically modeled the media-planning problem for print media as a nonlinear decision problem. In preliminary use of our DSS, a media agency saved 20 to 30 percent and obtained a solution very different from those generated by traditional trial and error methods.
Biodegradation von resorbierbaren Osteosynthesematerialien

ZUSAMMENFASSUNG Spntzgegosseno amorphe Pt)ly(L-Lactide) degradierten bei sehr guter Gewebeverträglichkeit im Langzeitresorptionsversuch bis 116 Wochen in der Ratte vollständig, während chemisch ähnliches aber kristallines Block-Poly(L-Lactid) über diesen Zeitraum formund volumenkonstant blieb. Die mechanische Ausgangsfestigkeit des Spritzgußmateriales war trotz niedrigeren Molekular* gewichtes gleich gut oder besser. Die Festigkeit in vivo blieb beim spritzgegossenen Polylactid über 12 Wochen erhalten, während es beim Blockmaterial nach 2 Wochen zu einem rapiden Festigkeitsverlust kam. Diese Eigenschaften empfehlen das spritzgegossene Poly(L-Lactid) als Osteosynthesematerial. EINLEITUNG Die Polylactide stehen seit Jahren im Brennpunkt des Interesses an resorbierbaren Osteosynthesematerialien. Von ihnen als Polymeren der körpereigenen Substanz Milchsäure nimmt man an, daß sie sich im Körper auflösen. Bisherige Untersuchungen (KULKARNIet al. 1966, MILLER et al. 1977, GERLACH 1986, BÖS 1989) konnten nur über einen teilweisen Abbau des verwendeten Materiales berichten. MATERIAL UND METHODE In den Rücken von 70 männlichen Cara-Ratten aus der Eigenzucht der Abteilung für Experimentelle Zahnmedizin der Universität Würzburg (Direktor: Prof.Dr.Ing. Roger Thull) implantierten wir je drei Probekörper von drei verschiedenen Polylactiden :
Optimal Location of Actuators and Sensors in Active Vibration Control

Several studies have been conducted in order to find the optimal location of actuators and sensors in the active vibration control of structures. In this paper, a modified optimization criterion is proposed for these two optimization problems, ensuring good observability or good controllability of the structure, and considering residual modes to limit the spill-over effects. Its efficiency is shown by the comparison with the classical criteria, illustrated for a simply supported beam and a rectangular plate. In these two applications, the number of active elements is discussed, using or neglecting the residual modes.
Circularly Polarized Antenna with Wide Axial-Ratio Bandwidth

This paper deals with a TT&C circularly polarized turnstile antenna for LEO satellites. The turnstile antenna consists of radiator for radiating power to free-space and power divider for generating circularly polarized wave. we presents a radiator to tolerate in space environments and a power divider to provide flat phase difference at wide bandwidth. The bandwidth of the proposed antenna covers the frequency bands of up- and down-link. The antenna shows wide beamwidth and enhanced axial ratio for unfavorable space environments.
Banking in cyberspace: an investment in itself

Home banking has evolved from the telephone to dial-up computers and now to the World Wide Web. The Internet will fundamentally change how we do business. Soon, surfing the Web will be as simple as channel surfing on television, When Joe Couch Potato can do his banking during the football game's commercials, electronic commerce will have reached critical mass. That day is right around the corner.
Textile and apparel supply chain management in Hong Kong

Purpose – This paper aims to review the concept of supply chain management. The typical problems facing with textile and apparel supply chain are short product cycle for fashion articles, long production lead‐time and forecasting errors for fashion items. The Hong Kong textile and apparel supply chain faces additional problems of distance from customers in the US and European markets, long production lead‐times and minimum batch sizes for production, and, recently, elimination of quota restriction in the US market, all of which force them to improve efficiency and enhance competitiveness through supply chain management. Seeks also to provide a selective bibliography for industrial practitioners with sources which can help them develop their supply chain strategies for the fashion market in Hong Kong.Design/methodology/approach – A range of recent published (1993‐2005) works, which aim to provide practical advice are critiqued to aid the individual practitioner to manage its supply chain strategies in Hong.
Fuzzy Immune PID Control for 6-DOF Parallel Platform

To improve the control precision of six degree-of-freedom parallel platform, a fuzzy immune PID control method was presented based on the immune feedback mechanism and fuzzy control theory, and the parameters of PID controller was optimized with hybrid algorithm. First, least square algorithm was used for off-line optimization to form immune feedback control system. Then, genetic algorithm was used for on-line optimization to get the optimal performance parameters of immune PID control system and the optimal fuzzy proportional parameters. Simulation results demonstrated that the control method designed gets tracking effect with high precision and speed.
Middle Man Concept for In-Orbit Collision Risks Mitigation, CAESAR and CARA Examples

This paper describes the conjunction analysis which has to be performed using data provided by JSpOC. This description not only demonstrates that Collision Avoidance is a 2- step process (close approach detection followed by risk evaluation for collision avoidance decision) but also leads to the conclusion that there is a need for a Middle Man role. After describing the Middle Man concept, this paper introduces two examples with their similarities and particularities: the American civil space effort delivered by the NASA CARA team (Conjunction Assessment Risk Analysis) and the French response CAESAR (Conjunction Assessment and Evaluation Service: Alerts and Recommendations). For both, statistics are presented and feedbacks discussed. All together, around 80 satellites are served by CARA and/or CAESAR. Both processes regularly evolve in order either to follow JSpOC upgrades or to improve analysis according to experience acquired during the past years.
Multivariate knock detection for development and production applications

Combustion knock caused by end gas autoignition continues to be a limiting factor in the performance of automotive internal combustion engines. As such, the availability of efficient knock detection methods is a prime requirement for the optimization of engine mapping and control. Current production knock control systems are based on the measurement of mechanical vibration induced by the acoustic resonance excited in the combustion chamber during autoignition. These vibrations are measured using accelerometers on the engine block. Conversely, knock detection in the laboratory environment during engine development or calibration generally involves either acoustic methods or acquisition of in-cylinder pressure. The purpose of this study is to develop an improved multi-transducer vibration-based knock detection method with applications in engine development and production. The possibility of replacing the pressure-based detection methods in the laboratory environment presents many advantages relating to cost and efficiency. Moreover, the economy of a vibration-based system coupled with improved correlation to laboratory methods represents great potential for performance improvements if applied to production applications.Copyright © 2004 by ASME
Novel slow-wave structure for narrow-band quasi-transversal filters

Slow-wave transmission lines for producing large delays have employed multilayer patterning, increased width, or very fine features requiring accurate photolithography. A narrow-band slow-wave structure with none of these disadvantages is proposed for use with tapped delay line (transversal) narrow-band filters. This line has periodic discontinuities, resulting in a pass- and stopband structure in which the group delay in the passbands is several times that of an ordinary transmission line. The discontinuities are spaced typically by one or two wavelengths so that fine details are avoided. A linear-phase transversal stripline filter in which delay is increased by a factor of five is demonstrated. Using a previously published design procedure to calculate the filter tap weights, multiple reflections, dispersion and frequency-dependent losses were allowed for and both amplitude and phase of the filter were synthesised. A wide range of both phase and amplitude characteristics should eventually be possible and superconducting delay lines should ultimately permit losses of only 1 or 2 dB
Narrow line semiconductor laser using fibre grating

A narrow linewidth, low chirp, wavelength selectable, packaged alternative to current DFB structures has been developed which employs a fibre reflection grating incorporated in the fibre pigtail. The wavelength of the packaged device can be determined by the appropriate choice of fibre grating coupled to the antireflection coated facet of a 1. 55μm BH laser. Linewidths of less than 50 kHz, sidemode suppression of more than 30 dB and chirp when modulated at 1.2 Gbit/s of <0.5 MHz have been demonstrated.
Modern Laser Applications

Manufacturing companies in both the mechanical and electrical sectors of industry are now beginning to adopt lasers for an increasing range of materials processing applications, including cutting, drilling, welding and surface treatments of both metals and non-metals. In some of these applications the process or product is completely novel, but for many others the compatibility of the laser with computer numerically controlled (CNC) and robotic techniques, its flexibility in operation, or other practical factors, are helping it to compete with older established fabrication technologies. Some illustrative applications drawn from nuclear, aerospace, and mass production industries are discussed in detail. The paper also touches briefly on the potential importance of laser technology for other industrial applications such as measurement, information technology and chemistry, as well as a few ‘high profile’ scientific applications.
Development of a New High-Rise Building Fire Fighting Robot

This new high-rise building fire fighting robot is a multifunctional fire fighting cabin, which integrated detection of a fire, fire fighting, person search and rescue, etc. The robot is connected with helicopter by a cable and transported over high building by a helicopter. This paper presents the system structure, working principle, the positon and attitude control strategy, and the control system including hardware and software. The prototype of the robot has been basically completed, experiments demonstrate the reliability of the system and all perfomance indexes are satisfied with the designed requirement.
Novel power divider with fixed strip width using offset double‐sided parallel‐strip lines

A novel power divider with fixed strip width using offset double‐sided parallel‐strip lines (DSPSL) is proposed. The offset double‐sided parallel‐strip lines allows an additional design freedom, i.e., offset distance between the top and bottom strips of the offset double‐sided parallel‐strip lines for characteristic impedance besides the strip width. This can reduce the discontinuities effectively resulting from the change of the strip width and improve the power‐handling capability of the proposed power divider. The simulated and measured results are presented and show good agreement. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1109–1111, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI.10. 1002/mop.22346
Aircraft Accidents in Brazil

ABSTRACT This article analyses aircraft accidents in Brazil, with monthly data from 1999–2009, using recently-developed techniques based on fractional integration. Aircraft accidents are shown to be fractionally integrated, therefore persistent, displaying long memory behaviour, while helicopters accidents and victims are characterized as short memory processes. Policy implications are derived for countering accident events.