Miracle-dz/UniFAR-FTUs huggingface dataset:
PERFORMANCE ANALYSIS FUZZY-PID VERSUS FUZZY FOR QUADCOPTER ALTITUDE LOCK SYSTEM

Mostly quadcopter has a flight controller to receive signal from remote control to control four brushless motor speed. In this paper, the researchers introduced a new control method to make quadcopter altitude lock system using Fuzzy-PID and perform a comparative performance analysis between the Fuzzy controller and the new Fuzzy-PID controller. Fuzzy controller has ability to solve uncertainty within the system, by incorporating with altitude sensor data. On the other hand, Fuzzy-PID has the ability to gain the target level with Kp, Ki, Kd values controlled. In this paper the researchers present an analysis to compare the control method between Fuzzy and Fuzzy-PID with regards to the stability altitude lock system. The stability of the altitude lock system can be measured by how small the oscillations occurred. Fuzzy control has shown to produce better result than Fuzzy-PID control. Fuzzy control has 14 cm as its average oscillation, while Fuzzy-PID recorded 24 cm as its average oscillation.
Business groups, investment, and firm value : Empirical studies on India

In India maken bedrijven vaak deel uit van een business group. De onderlinge banden in zo'n groep kunnen formeel (eigendomsrelaties) of informeel (sociaal) van aard zijn. De onderzoeksvraag van Remco van der Molen luidt: hoe wordt de waarde van dergelijke bedrijven beinvloed door het lidmaatschap van zo'n groep? Van der Molen verrichtte vier empirische studies naar de financiele aspecten van de business groups. Hij concludeert dat het lidmaatschap op zich geen waarde heeft. Maar als het lidmaatschap van de groep de investeringsmogelijkheden van een bedrijf vergroot, heeft dat wel economische waarde.
The study of buffer structure of On-board test's circuit module in high shock

In order to measure the acceleration of a projectile penetrating hard aims, we adopt on-board test technology. When the projectile penetrates hard targets, such as concrete, rock, and metal targets, the on-board test's circuit module suffers very high shock. After having analyzed related technology references, and compared different kinds of buffer materials and structures, we performed some experiments, then drew the conclusion that it is a valid method to use nonlinear buffer structures, such as plastic springs, to absorb the energy of the on-board test circuit module in the process of the buffer structure's compressive collapse.
CHOTs optical transducers

Laser ultrasonics conventionally use direct absorption in the sample to generate ultrasound and monitor the sample to detect the ultrasound. However, in some circumstances there are significant advantages to using an optical transducer – a device to facilitate the conversion of optical energy into acoustic energy or to facilitate the modulation of light by an acoustic wave. These devices are known as ‘cheap optical transducers’ (CHOTs). For some applications, they offer considerable advantages over conventional laser ultrasonics or conventional contact ultrasonics. In this paper, the design, operation and applications of CHOTs are discussed, and the concept is extended to the use of superCHOTs that can achieve amplitudes and sensitivities above the usual laser ultrasound limits, nano-scale devices capable of the generation and the detection of ultrasound with wavelengths smaller than that of visible light and devices capable of generating modes not normally accessible to laser ultrasound.
Car Styling Perceptual Modeling Based on Fuzzy Rules

Abstract. In today’s automotive market with intense competition, car styling preferences directly affect designer’s design outcome. At the meantime, there are various types of car styles, however users’ emotional evaluations of them are messy. Thus establishing a perceptual extraction model of vehicles is necessary. Under common circumstances, we quantify the emotional human perceptual through digitized human perceptual data obtained by questionnaires. However, it is emotional and thus difficult to analyze. In order to analyze perceptual data, the general method is statistical methods, such as factor analysis system. However, the use of statistical methods alone is not sufficient to handle the emotional data, because this method cannot handle non-linear intrinsic emotional data. This paper will discuss the using of fuzzy rules and through inductive data analysis to extract a common perceptual model of consumers’ emotional tendencies towards vehicles. In this paper, methods of variance predicted generalized regression neural network (VP-GRNN) and fuzzy adaptive resonance theory (fuzzy ART) were used to build a common perceptual model.
Arbitrary Load Distribution on a Layered Half Space

This paper develops a method which allows one to calculate the complete elastic field (stress field unit displacements) of layered materials of transverse and complete isotropy under given load conditions. It is assumed that the layered body consists of at infinite half-space and various infinite planes which are all ideally bonded to each other. Thus, the interfaces are parallel to the surface of the resulting coated half space. The approach is based on the method of images in classical electrostatics. The final solution for an arbitrary load problem can be presented as a series of potential functions, where corresponding functions may be interpreted as image loads the analogous to image charges. The solution for the elastic field for any arbitrary stress distribution on the surface of the coated half space can be obtained in a relatively straightforward manner by using the method described here as long as the corresponding solution for the homogeneous half space is known. Further, if this solution of the homogeneous case may be expressed in terms of elementary functions, then the solution for the coated half space is elementary, too, Explicit formulas for the stress fields for some particular examples are given.
Monolithically Integrated THz Photodiodes With CPW-to-WR3 E-Plane Transitions for Photodiodes Packages With WR3-Outputs

An indium phosphide (InP)-based E-plane transition for monolithically integrating terahertz photodiodes with standard rectangular waveguide (WR)-outputs is presented for all standard WR-frequency bands from 0.22 THz to 2.2 THz, i.e., from WR3 to WR0.51. The integration concept comprises a modified uni-travelling carrier photodiode (MUTC-PD) chip, an E-plane transition and a stepped impedance low-pass filter (LPF), which are all monolithically integrated on an InP substrate. The E-plane transition converts the quasi-TEM coplanar waveguide (CPW) mode of the MUTC-PD output to the dominant TE10 mode of the WR. To our knowledge, this is the first frequency-scalable monolithic integration concept that enables packaging of photodiodes with standard WR-outputs up to 2.2 THz. The recommended thickness of the InP substrate and the proposed E-plane transitions’ design parameters are investigated by numerical analysis to achieve minimum insertion loss (IL) and a wide operational bandwidth (BW). The presented optimized transitions exhibit a maximum IL of 1.4 dB, a return loss (RL) better than 10 dB and a minimum 1 dB IL BW of 92.23% for all WR-bands up to 2.2 THz. To prove the proposed monolithic integration concept, a MUTC-PD is integrated with a CPW-to-WR3 E-plane transition (220-320 GHz) on a 95 µm-thick InP substrate. At 300 GHz, the maximum achieved RF output power of the fabricated MUTC-PD chip is −12.4 dBm at a photocurrent of 18.5 mA. For experimental characterization, the MUTC-PD chip with the integrated E-plane transition has been mounted on a 1 mm-thick soda-lime glass substrate as carrier and it has been manually aligned within a WR3 together with an adjustable back-short. Due to non-perfect alignment of the chip and the back-short as well as the additional losses and substrate modes due to the thick glass carrier, the calculated average IL is increased to 5.3 dB. Experimentally, an average IL of 8.6 dB is measured within the WR3-band from 220 GHz to 320 GHz. Integration of the chip in a real package without misalignment and without the glass carrier is expected to improve the IL by ∼4.8 dB.
A state-space approach to orthogonal digital filters

An algorithm for designing multi-input multi-output (MIMO) orthogonal digital filters is developed using a state-space approach. The algorithm consists of three parts: (i) orthogonal embedding, (ii) transformation of the embedded orthogonal transition matrix to the alpha -extended upper Hessenberg form; and (iii) factorization of this new form into Givens (planar) rotations. Appropriately interconnecting the rotors leads to the pipelined orthogonal filter structure. As a consequence of the approach, for the single-input, single-output (SISO) case, an essentially orthogonal structure is obtained for the inverse filter; only one of the Givens rotors is replaced by a hyperbolic rotor. >
A new approach to enhance power quality for medium voltage AC drives

A new approach to medium-voltage variable-frequency static AC motor drives offers improvements in power quality. Harmonic current injection into the power lines is below the most severe requirements of IEEE Standard 519-1992. The power factor of this new type of drive exceeds 94% at full load and is above 90% at 10% load. Motor voltage and current waveforms are improved so that torque pulsations are reduced. Peak voltage stress on motor insulation does not exceed peak input line voltage, and no zero sequence voltage is imposed. Drive efficiency exceeds 96%. This paper describes the new approach and some of the results achieved.
Working Alliance as a Mediator between Supervisory Styles and Supervisee Satisfaction

To answer the research question whether there is a mediation effect of the supervisory working alliance between supervisory styles and supervisee satisfaction, we developed a mediation model and tested this hypothesized mediation effect with a sample of 111 participants that was comprised of master’s and doctoral counselor trainees and counseling practitioners recruited from several counseling professional networks. Results indicated a statistically significant indirect effect of supervisory styles on supervisee satisfaction through the supervisory working alliance. Specifically, when supervisees rated higher on a mixture of three supervisory styles, they were more likely to report a stronger working alliance with their supervisors; this alliance, in turn, contributed to their higher levels of satisfaction with supervision. These findings also speak to the importance of maintaining a flexible, balanced approach in supervision, and shed light on how both supervisors and supervisees can contribute to the supervisory working alliance so as to enhance supervisee satisfaction.
A planar stealthy antenna radome using absorptive frequency selective surface

In this article, a planar stealthy radome is designed and applied to a microstrip antenna. The radome is realized using absorptive frequency selective surface (AFSS), which allows the signal at the operating frequency of antenna to pass and absorbs the out‐of‐band electromagnetic waves. The AFSS radome is placed above a microstrip antenna. Numerical and experimental results of the radiation performance and the radar cross section of the composite antenna‐radome structure have been presented. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1788–1792, 2014
Parameterization and compensation of friction forces using genetic algorithms

In this paper, the use of genetic algorithms in the parameterization and compensation of friction forces is investigated. The static and dynamic parameters of the friction model are estimated in a single identification experiment. A PI controller with parameters optimized using genetic algorithms is used to control the position of a DC motor with friction. Simulation results are included to demonstrate the effectiveness of the proposed method.
Benefit Segments of the Female Apparel Market: Psychographics, Shopping Orientations, and Demographics

The purposes of the study were (1) to segment the female apparel market based on "descriptive clothing benefits sought" by female consumers, and (2) to develop a profile of each segment concerning psychographics, shopping orientations, patronage behavior and demographics. Nationwide data (n = 610) were collected via a mail questionnaire sent to 1,000 females. Using cluster analysis on benefits sought factors, three groups were identified and labeled as (1) Symbolic/Instrumental Users of Clothing (51%); (2) Practical/Conservative Users of Clothing (35%); and (3) Apathetic Users of Clothing (14%). MANOVA and Chi-square statistics revealed significant differences among the three benefits segments on 10 psychographic factors, 3 shopping orientation factors, 1 patronage behavior variable, and 7 demographic factors. A profile of these groups was developed; marketing and theoretical implications were provided.
3D Path Planning for a Rotary Wing UAV using a Gaussian Process O ccupancy Map

This paper presents a 3D online path planning algorithm for a 6DOF Rotary Unmanned Aerial Vehicle (RUAV) operating in a cluttered environment using a Gaussian Process (GP) occupancy map. Traditional grid-based occupancy maps suffer from the curse of dimensionality for platforms that operate in a high dimensional configuration space. In addition, the grid resolutions, shapes and orientations limit the flexibility of the path planner. A GP occupancy map however performs inference directly on the collected sensor data, removing the need of maintaining a full discrete map. It performs inference about the probability of collision for any query point in continuous 3D space that potentially maximizes the flexibility of the path planner. We embed the GP map approach into our previous work on smooth path planning and control for an aerial vehicle and present results in a simulated cluttered environment.
Dimensions of Quality

ABSTRACTAn ongoing question arises regarding the applicability of generic models and measures to the production of a full range of products and services from the manufacturing, distribution, and service segments of our economy. To answer this question, a committee of the Quality Management Division of the American Society for Quality Control (ASQC) has taken on the task of defining a Best Practices Model to be used by organizations for developing their own customer-specific practices. This article proposes that use a generic organizational model is possible for those organizations who view themselves as a client-centered organization, regardless of the product or service they provide. The viability of these models for the typical engineering and architectural (E/A) design practice are also examined.
Neerizhivu kudineer (a traditional siddha polyherbal antidiabetic medicine) inhibits α- amylase enzyme and αglucosidase enzyme

Objective: To investigate the α-amylase and α-glucosidases inhibitory activity of Neerizhivu kudineer (NK). Methods: The polyherbal formulation NK was prepared as per traditional Siddha medical literature and aqueous extract was taken. Invitro α-amylase and α-glucosidases inhibitory activity of NK was evaluated using various concentrations of NK. Acarbose was used as standard drug. The percent inhibition values were determined and the dose verses percent inhibition was plotted in MS excel. Using the linear trend line, the concentration required for 50% inhibition (IC50 value) were calculated. Results: NK exhibited dose dependent inhibition on α- amylase and α-glucosidase with the IC50 value of 6.90 μg/ml and 8.51 μg/ml respectively, whereas the standard drug acarbose exhibited IC50 at 5.04 μg/ml and 5.50 μg/ml respectively. Conclusion: Neerizhivu kudineer has the inhibitory action on α-amylase and α-glucosidases enzyme.
Control strategy of hybrid fuel cell/battery distributed generation system for grid-connected operation

This paper presents a control strategy of a hybrid fuel cell/battery distributed generation (HDG) system in distribution systems. The overall structure of the HDG system is given, dynamic models for the solid oxide fuel cell (SOFC) power plant, battery bank and its power electronic interfacing are briefly described, and controller design methodologies for the power conditioning units and fuel cell to control the power flow from the hybrid power plant to the utility grid are presented. To distribute the power between the fuel cell power plant and the battery energy storage, a neuro-fuzzy controller has been developed. Also, for controlling the active and reactive power independently in distribution systems, the current control strategy based on two fuzzy logic controllers has been presented. A Matlab/Simulink simulation model is developed for the HDG system by combining the individual component models and their controllers. Simulation results show the overall system performance including load-following and power management of the HDG system.
Development of space vector modulation strategies for five phase voltage source inverters

This paper compares modulation schemes for the five-phase inverter. A novel interpretation of five-phase to orthogonal axis transformation is presented with the development of main and auxiliary space vector domains. It is shown that the auxiliary space vector domain produces harmonic distortion in the five phase system. A novel space vector modulation strategy is developed to produce voltage in the main domain while cancelling components in the auxiliary domain, resulting in a sinusoidal system. The novel scheme is practically implemented and the production of sinusoidal excitation is demonstrated. Further a dead-banding scheme is also implemented to reduce switching.
Initial evaluation and follow-on investigation of the Quantum Magnetics laboratory prototype, room-temperature gradiometer for ordnance location

The SBIR Phase I room temperature gradiometer localizer produced by Quantum Magnetics was received and evaluated in late summer of 1997. While still based on IBM's innovative three-sensor gradiometer (TSG), its performance was greatly improved over the original IBM prototype that was evaluated and reported several years prior. This system shows great promise both as a land based ordnance localizer as well as an underwater mine locator for diver or Autonomous Underwater Vehicle applications. The locating software induced both Frahm-Wynn and the newer 'Magnetic and Acoustic Detection of Mines' algorithms, both of which were evaluated against a variety of ordnance type targets. The TSG configuration affords unprecedented dynamic range that enables detection of signals at the fluxgate sensor noise while the system is in motion in the earth's field. Evaluation of the prototype revealed the need for additional positional sensor to enable more precise balancing and localization. Auxiliary sensors investigated were differential Global Positioning System and accelerometers. Localization software incorporating these sensors is reported elsewhere.
Design and performance of the HEAD PENN-PET scanner

A new PET scanner for brain imaging (and animals) has been designed with very high sensitivity and spatial resolution. The design is an evolution of the PENN-PET scanner, which uses large position-sensitive NaI(Tl) detectors, with Anger-type positioning logic, and which allows 3D volume imaging, without septa. The new design is built with a single annular crystal coupled to 180 photomultiplier tubes, and uses local triggering electronics to subdivide the detector into small zones and to determine coincident events within the detector. The axial acceptance angle of /spl plusmn/27 deg, with a field-of-view of 25.6 cm, is larger than any currently operating PET scanner. Performance measurements are presented. >
Station Deployment and Signal Filter Design for Performance Evaluation of Indoor Positioning System

This paper investigates enhancement of fuzzy logic indoor positioning system (FLIPS) and its effect upon the wireless station deployment. The proposed scheme adopts an average filter to improve stability in transforming received signal strength (RSS) between a sensor and stations into distance. Based on the reliable distance data set, a fuzzy logic inference engine determines precise coordinates of the sensor. In order to evaluate the optimal deployment of wireless stations, this study experiments on three different size test areas within three to eight stations. Those results provide considered analysis to develope a more efficient FLIPS.
NO NEED TO YELL: A Prosodic Analysis of Writing in All Caps

Writing in all caps, while not unique to the internet, has become a common feature used in social media. English-speaking internet natives seem to have shared intuitions about what meaning it contributes to a text, even though it is not a feature taught in standard English orthographic education. This study employs production studies to determine how readers produce tweets written in all caps out loud, in order to provide evidence that there is a prosodic component to the interpretation of all caps. Though common discourse about all caps holds that it indicates yelling and anger, the data from this study shows that it's not just average loudness but also average pitch and syllable duration that tend to be increased in the production of all caps text versus text with standard capitalization. This combinaiton of prosodic features which can be associated with all caps also supports the conclusion that it can be used in contexts exemplifying a wide range of emotions, not just anger. This study lays groundwork for a better understanding of the interaction between orthography and prosody on social media and how production studies can be used to test such interactions. This working paper is available in University of Pennsylvania Working Papers in Linguistics: https://repository.upenn. edu/pwpl/vol27/iss1/10
Academic Inventors and Knowledge Technology Transfer in nanoscience in Sweden

Nanoscience is an innovation intensive interdisciplinary field and in high interest especially in Sweden where a significant fraction of academic patents and publications can be classified in Nanoscience. This paper has two purposes. The first is to present an overview of nanoscience in Swedish academia. Combining bibliometrics data from Web of Science, patent data from EPO and data from the Swedish academia we compile a map
Concurrent engineering: A compromising approach to develop a feasible and customer-pleasing product

To develop a customer-pleasing and economically and technically feasible product, it is necessary to utilize the best possible knowledge of the market, the customers, the core product technology, and the cost implications of design alternatives. It requires the concurrent involvement of team members from merchandizing, product development, and purchasing and production-engineering departments of the enterprise. The merchandizing department identifies customer needs however, considering only customers’ requirements, without technical information it is not possible to develop a feasible product. Conversely, the function-oriented designers in the product development department determine the subsystems’ weight, which are technically feasible but may ignore the qualitative issues desired by the customers. To identify the economic feasibility of the product, the purchasing and production-engineering departments calculate the estimated cost by evaluating the cost implications of the design alternatives. Therefore, to produce an economically and technically feasible product with customer pleasing quality, a trade-off among these three sets of weights is essential. Here, we propose an optimization model that assimilates three sets of weights of the subsystems to a final one. The resultant set of weights will represent the effects of concurrent cooperation among merchandizing, product development, purchasing and production-engineering departments of the enterprise.