Miracle-dz/UniFAR-FTUs huggingface dataset:
Comparison of Test Methods for Characterization of Doubly Fed Induction Machines

The doubly fed induction machine (DFIM) is widely used in variable-speed ac drives. Accurate characterization of the machine is important to optimize its efficiency and operation. A novel characterization method using series-coupling tests has produced favorable results in characterizing this type of machine. This paper reviews the series-coupling tests and compares their results with IEEE Standard 112. The conventional IEEE Standard 112, series-coupling, and extended-short-circuit testing procedures are used to characterize a 1.1- and a 30-kW DFIMs. The various models obtained from these methods are validated by comparing the model predictions with the experimental torque-speed curve for each of the machines. The series-coupling test approach offers a more direct method of obtaining the various resistive and inductive elements than the other testing procedures, and this is reflected in the performance of the series-coupling test models in predicting the torque-speed curves of the two machines. The series-coupling test was found to predict the torque profile of the 1.1-kW machine with a higher degree of accuracy than the other test models while having similar accuracy to the IEEE tests in the case of the 30-kW machine. A sensitivity analysis of the test procedures is carried out to determine the influence the errors in experimental measurements have on the respective models and to subsequently determine the suitability of each test procedure for characterizing each of the machines. Finally, the variation of the parameters with applied test conditions in the series-coupling procedure is investigated.
Foundations of the case for natural-language programming

There are more and deeper issues involved in the notational question in computer programming than are covered in the usual easy antitheses between natural sloppiness and formal precision. This article argues that it is far from clear that a formalism patterned on mathematical notation is the answer to any burning problem in practical programming. In arguing the case for natural language, it is often as necessary to take issue with those favoring the cause as with those opposed to it, for the natural-language ``party,'' also, has been guilty of perpetuating invalid ideas. Thus, this article attempts to lay the groundwork for more useful exchanges between the formalist and natural-language schools.
Active Structural Vibration Control: A Review

In this paper we review essential aspects in- volved in the design of an active vibration control system. We present a generic procedure to the design process and give selective examples from the literature on relevant ma- terial. Together with examples of their applications, various topics are briefly introduced, such as structure modeling, model reduction, feedback control, feedforward control, con- trollability and observability, spillover, eigenstructure assign- ment (pole placement), coordinate coupling control, robust control, optimal control, state observers (estimators), intelli- gent structure and controller, adaptive control, active con- trol effects on the system, time delay, actuator-structure interaction, and optimal placement of actuators.
Application of Massed Practice Method and Motoric Ability to Fencing Martial Skills

This research provides information about the application of massed practice benefits associated with the motoric ability of the students in the fencing learning process. The purposes of this research are to understand the impacts of application of massed practice for the group of high motoric skills and the group of low motoric skills in fencing martial learning process. This research method is an experimental method with pre-test and post-test randomized two-group design.The number of students that used as the samples is 20 students with simple random sampling technique through the motoric skills test. These samples were divided into 2 groups, the group of high motoric skills and the group of low motoric skills, each of these groups consists of 10 students. The data collecting technique uses motoric skills test (throws at target test, the flexibility of ‘togok’ and waist test, long jump without prefix test, face down and wake test, push-up test, the agility of run back and forth test) and fencing test. Data analysis technique in this research uses the statistic of t two independent samples test. The results indicate that 1) there is a significant effect of the application of massed practice learning method to the group of high motoric skills towards fencing martial arts skills, with a probability value of 0.000 (p <0.05), 2) there is a significant effect of the application of massed practice learning method to the group of low motoric skills on fencing martial arts skills, with a probability value of 0.001 (p <0.05), 3) there are significant differences effect of the application of massed practice learning methods in the group of low motoric skills with the group of high skills, with a value t-observation is 2.498 with a probability value of 0.022, (p
The MIT Indoor Multi-Vehicle Flight Testbed

This paper and video present the components and flight tests of an indoor, multi-vehicle testbed that was developed to study long duration UAV missions in a controlled environment. This testbed is designed to use real hardware to examine research questions related to single- and multi-vehicle health management, such as vehicle failures, refueling, and maintenance. The testbed has both aerial and ground vehicles that operate autonomously in a large, indoor flight test area and can be used to execute many different mission scenarios. The success of this testbed is largely related to our choice of vehicles, sensors, and the system's command and control architecture. The video presents flight test results from single- and multi-vehicle experiments over the past year.
BrainBasher: a BCI Game

Brain-computer interaction (BCI) is starting to focus on healthy subjects. This research adresses the effects of using this novel input modality to control a simple game, and also looks into the beneficial effects of bringing game elements into BCI experiments. A simple BCI game has been developed and evaluated with fifteen subjects using the Game Experience Questionnaire (GEQ) developed at the Eindhoven Game Experience Lab. Three variations of the game were evaluated for comparison: the original game with BCI input, one with keyboard input, and one with a more clinical look leaving out all extraneous information. The keyboard-controlled game was considered easy and boring, whereas using BCI for input resulted in a more challenging, immersive and richer experience. The design and additional information presented by the game also resulted in higher immersion compared to the clinical design.
Time Aggregation and the Analysis of Welfare Persistence ∗

Dynamic discrete-choice models are an important tool in the existing empirical literature on welfare dynamics and the study of ‘structural’ state dependence. These models typically rely on the assumption that benefit dynamics follow a first-order Markov process conditional on some individual-specific characteristics, a property that has important implications in terms of how transition probabilities should relate when processes are aggregated over time. Using high-quality monthly data on welfare benefit receipt in Norway, this paper assesses to what extent the conditional Markov property holds in the dimension of time aggregation. Our results suggest that time aggregation has a substantial impact on the degree of estimated state dependence, and more specifically that more aggregated models tend to strongly overestimate the degree of ‘structural’ state dependence. We find evidence that the standard model can be improved by allowing for higher-order lags, duration dependence, or occurrence dependence, and moreover, that the processes driving entries and persistence in benefit receipt might not be symmetric. These models however do not seem to offer an improvement in terms of their time aggregation properties. JEL classification: I31, J60, J64, C41
Baby-sit: A computational medium based on situations

While situation theory and situation semantics provide an appropriate framework for a realistic model-theoretic treatment of natural language, serious thinking on their `computational' aspects has just started. Existing proposals mainly offer a Prolog- or Lisp-like programming environment with varying degrees of divergence from the ontology of situation theory. In this paper, we introduce a computational medium (called BABY-SIT) based on situations. The primary motivation underlying BABY-SIT is to facilitate the development and testing of programs in domains ranging from linguistics to artificial intelligence in a unified framework built upon situation-theoretic constructs.
MPLS (A CHOICE OF SIGNALING PROTOCOL)

Multi Protocol Label Switching (MPLS) is a core networking technology that operates essentially in between Layers 2 and 3 of the OSI model; for this reason, MPLS has been referred to as operating at Layer 2.5. MPLS can overlay existing technologies such as ATM (Asynchronous Transfer Mode) or Frame Relay, or it can operate in an entirely IP native environment; this can allow users to take advantage of existing CPE (Customer Premises Equipment) while making a move towards converging all network traffic, such as data, video and voice, at a pace that users can accommodate and afford. MPLS provides its users a number of advantageous features such as traffic engineering, network convergence, failure protection, and the ability to guarantee Quality of Service (QoS) over IP. MPLS Vans take advantage of the inherent characteristics of MPLS to provide secure data networking, typically for business users, in conjunction with other VPN technologies to help increase scalability while keeping costs at a manageable level. This paper should help to provide a basic understanding of MPLS technology, its advantages and limitations, and its application as an IP VPN. This paper covers MPLS, Label Distribution, Explicit Routes, Constrained Routes, Resource Reservation, Traffic Engineering, Service Level Contracts, Virtual Private Networks and Modern Networks needs. Our Next papers will focus on MPLS Traffic Engineering Overview and Differences and Similarities between RSVP and CR-LDP.
Quality of Life in Cancer Patients undergoing Chemotherapy.

OBJECTIVES The objective of this study is to describe the quality of life (QoL) in cancer patients with solid tumors and at different chemotherapy (CT) cycles. METHODS A total of 200 cancer patients were included. With some modification, the European Organization for Research and Treatment of Cancer QoL Questionnaire (EORTC QLQ-C30) was used to measure QoL in the student patients. RESULTS There was no correlation between the QoL and variables such as age, sex, marital status, duration of disease, economic conditions, and occupational function. Furthermore, no correlation was found between QoL and the patients' educational level (literate or illiterate). Nevertheless, a significant difference was found between the level of QoL in patients with ≤ 2 CT cycles and/or with 3-5 cycles (p< 0.001). CONCLUSION This study suggests that encouraging cancer patients to complete a CT course plays an important role in the treatment outcome and the QoL in cancer patients undergoing CT.
Punctate inner choroidopathy and multifocal choroiditis with panuveitis share haplotypic associations with IL10 and TNF loci.

PURPOSE The white-dot syndromes are a heterogenous group of chorioretinal disorders that have many common clinical features. Whether these disorders represent distinct clinical entities or different manifestations of the same disease warrants further interrogation. Two white-dot syndromes were investigated, with closely overlapping phenotypes--multifocal choroiditis with panuveitis (MFCPU) and punctate inner choroidopathy (PIC)--for differences in clinical course and genotype frequency at IL10 and TNF loci, known to be associated with noninfectious uveitis. METHODS Twelve polymorphisms were genotyped, spanning the TNFA and IL10 genomic regions, in 61 patients with MFCPU or PIC and 92 population controls from the United Kingdom and Republic of Ireland. RESULTS There were clear differences in clinical course between patients with MFCPU and PIC which had prognostic significance. However, both patient groups demonstrated similar associations with the IL10 haplotype, IL10htSNP2(-2849)AX/htSNP5(+434)TC and negative associations with the TNF haplotype, LTA+252A/TNFhtSNP1(-308)G/TNFhtSNP2(-238)G/TNFhtSNP3(+488)A/TNFd3. CONCLUSIONS Despite clear differences in clinical course and outcome, MFCPU and PIC may still represent two manifestations of the same disease, given their similar genetic associations with IL10 and TNF loci, which are known to be associated with noninfectious uveitis and autoimmunity, in general. Definitive proof will necessitate genomewide sequence analysis. However, the data also support the notion that epigenetic factors have a strong effect on clinical phenotype.
Routing Tables: Is Smaller Really Much Better?

We examine the case for small Internet routing and forwarding tables in the context of router design. If Moore’s Law drives costeffective scaling of hardware performance in excess of the Internet’s growth, protocol modifications and “clean slate” efforts to achieve major reduction in routing table sizes may be unnecessary. We construct an abstract model for the computation and memory requirements of a router designed to support a growing Internet in light of advances being made in multi-core processor design and large, fast memories. We conclude that these advances are largely sufficient to keep the sky from falling.
Antibiotic, cytotoxic and enzyme inhibitory activity of crude extracts from Brazilian marine invertebrates

Herein we present the results of a screening with 349 crude extracts of Brazilian marine sponges, ascidians, bryozoans and octocorals, against 16 strains of susceptible and antibiotic-resistant bacteria, one yeast (Candida albicans), Mycobacterium tuberculosis H37Rv, three cancer cell lines MCF-7 (breast), B16 (murine melanoma ) and HCT8 (colon), and Leishmania tarentolae adenine phosphoribosyl transferase (L-APRT) enzyme. Less than 15% of marine sponge crude extracts displayed antibacterial activity, both against susceptible and antibiotic-resistant bacteria. Up to 40% of marine sponge crude extracts displayed antimycobacterial activity against M. tuberculosis H37Rv. Cytotoxicity was observed for 18% of marine sponge crude extracts. Finally, less than 3% of sponge extracts inhibited L-APRT. Less than 10% of ascidian crude extracts displayed antibacterial activity. More than 25% of ascidian crude extracts were active against M. tuberculosis and the three cancer cell lines. Only two crude extracts from the ascidian Polysyncraton sp. collected in different seasons (1995 and 1997) displayed activity against L-APRT. Less than 2% of bryozoan and octocoral crude extracts presented antibacterial activity, but a high percentage of crude extracts from bryozoan and octororal displayed cytotoxic (11% and 30%, respectively) and antimycobacterial (60%) activities. The extract of only one species of bryozoan, Bugula sp. , presented inhibitory activity against L-APRT. Overall, the crude extracts of marine invertebrates herein investigated presented a high level of cytotoxic and antimycobacterial activities, a lower level of antibacterial activity and only a small number of crude extracts inhibited L-APRT. Taxonomic analysis of some of the more potently active crude extracts showed the occurrence of biological activity in taxa that have been previously chemically investigated. These include marine sponges belonging to genera Aaptos, Aplysina, Callyspongia, Haliclona, Niphates, Cliona, Darwinella, Dysidea, Ircinia, Monanchora and Mycale, ascidians of the genera Didemnum, Aplidium, Botrylloides, Clavelina, Polysyncraton and Symplegma, the bryozoan Bugula sp. and octocorals of the genera Carijoa and Lophogorgia. The subsequent chemical investigation of some of the active extracts led to the isolation of several new biologically active secondary metabolites. Our results are in agreement with previous screening programs carried out abroad, that showed a high percentage of bioactive extracts from Porifera, Ascidiacea, Cnidaria and Bryozoa.
Perceived reasons for pursuing vocational education and training among young people in Romania

ABSTRACT Vocational education and training (VET) is linked to many social and economic goals. Yet despite the high policy ambitions, it often remains a sector with a low(er) social standing. This paper is based on empirical data collected through interviews and focus groups with over 250 young women and men aged 16–18 in 34 VET schools in Romania. It aims to gain a better understanding of their perceived reasons for being in VET and seeks to find out the extent to which VET involved an element of choice. The paper explores a large array of circumstances that bring young people into VET, which are not limited to the need to acquire skills. These issues include localism, family obligations and the priorities of powerful ‘others’: schools, employers, etc. It argues that, despite young people actively searching for elements of choice, VET in Romania is more a story of capability deprivation. This paper questions a policy discourse that prioritises the need for skills at the expense of engaging meaningfully with young people’s social worlds.
Towards a learning perspective on Knowledge/Technology transfer through corporate acquisitions

Although corporate acquisitions are on the rise, not much is known about the micro processes of knowledge and technology transfer after the deal is closed. The goal of this present research is to add to this knowledge by reviewing the literature while addressing two questions: 'what enables knowledge transfer in acquisitions' and 'what can organizations do to manage the knowledge transfer more successfully? '. The paper presents an organizational learning perspective on corporate acquisitions and discusses how organizations could learn from past and present acquisitions.
QUATTRO: QoS-Capable Cross-Layer MAC Protocol for Wireless Sensor Networks

As the wireless sensor network (WSN) technology evolves towards higher transmission rates, it makes sense to start considering sensing and transmission of real-time information, such as audio and video. These applications require quality of service (QoS) guarantees, not offered by current networks. The multi-hop nature of WSN makes QoS a challenging task. In addition, researchers have recently realized that cross-layer protocols achieve a far better performance than protocol layers working in isolation. These two ingredients are the focus of our work. In this paper we propose an architecture in which the MAC and routing protocols collaborate to discover and reserve routes, to organize nodes into clusters and to schedule the access to the transmission medium in a coordinated timeshared fashion. As a consequence, not only QoS is achieved but also great energy savings by eliminating collisions and considerably reducing idle listening. The resulting protocol is called QUATTRO: QUAlity-of-service-capable clusTer-based Timeshared ROuting-assisted MAC protocol. We evaluate our proposal using simulations by examining multiple scenarios in which different numbers and densities of nodes are considered. Our results show that the protocol overhead is reasonable.
Responding to a false alarm: Federal preemption of state securities fraud causes of action

This Article evaluates, from both an economic and a political perspective, the Uniform Securities Litigation Standards Act of 1998, a bill that preempts most securities fraud class actions under state law. The Article, drawn in part on the author's testimony before committees of the Senate and the House of Representatives, concludes that the purported benefits of requiring securities fraud claims to be litigated under federal law are ephemeral, because relatively few class actions are filed in state court and because claims of fiduciary breach are already litigated under state corporate law. The statistical evidence that plaintiffs fled to state court after the 1995 Reform Act is at best ambiguous; other statistical evidence suggests that the 1996 increase in state-court litigation was temporary and that the number of state securities class actions in 1997 returned to pre-1995 levels. Three quarters of these suits were filed in one state, California, against companies having most of their operations there. An analysis under public choice theory of trends in state law also suggests that California and most other states will favor issuers that base operations and/or sell a substantial amount of securities within the state, although a few smaller states could be dominated by pro-plaintiff interests. The Uniform Standards Act thus responds to a problem that doesn't exist, and furthermore fails to address problems that are real and need to be addressed. These include use of state court litigation by individual plaintiffs to circumvent stays on discovery in federal court and collusive agreements by class action lawyers to settle federal securities claims as part of settling corporate law claims in state court.
Collaborative management of applications in enterprise social networks

Enterprise social networks are gaining momentum as a platform for collaboration between members of an enterprise, leading to the notion of Enterprise 2.0. Participant collaboration includes communication, information and data dissemination and also application execution, leading to task completion. This paper presents an approach extending social network data model to promote participant collaboration through collaborative application execution and management. The proposed extensions support not only process monitoring but actual execution, management and composition of applications within the context of the social network, in a uniform way. In order to achieve this effectively, external services must be wrapped and integrated in the social network environment as applications, and consequently they must be mapped to business tasks executed in each participant profile, according to their actual role and responsibilities in the enterprise. The social network framework must take into account the actual roles, relationships and responsibilities of the members of an enterprise, which, combined, dictate enterprise workflow schemes and policies. To explore the potential of the proposed approach, a prototype social network platform is discussed as a case study.
Analysis of scattering from buried object by using the geometrical optics

This paper is concerned with a theoretical solution to the problem of TE-Scattering radio waves by a buried object in a three-layered medium. The region of interest consists of three homogenous layered medium, the object of an inhomogeneous material with respect to its layer. With the aid of geometrical optics technique, this paper analyzes the influence of the buried object on the scattered magnetic field from the layered medium. Closed-form expressions for the far-field of a VMD, located above the ground surface, are obtained due to the buried object under the ground. This technique takes into consideration all the probabilities of plane waves under and above the ground to calculate the total reflection coefficient. The extra-scattered field due to the perturbation in the earth magnetic field has been obtained by solving Sommerfeld integrals (SI). The solution of SI has been based on the stationary-phase point method. The obtained results are compared with those mentioned in three- layered free buried objects.