Miracle-dz/UniFAR-FTUs huggingface dataset:
Intelligent adaptive control in milling processes

In this paper, two intelligent adaptive controllers for milling processes are proposed. One is an intelligent adaptive controller with optimization (IACO) developed based on a neural network and genetic algorithm. The other is an intelligent adaptive controller with constraints (IACC) developed based on a neural network and expert rules. In the IACO, a modified back-propagation neural network (MBPNN), in which a dynamic factor is attached and the learning rate can be adjusted in the learning process is used for the online modelling of the milling system. In addition, a modified genetic algorithm (MAG), in which the search domain can be adjusted in every generation is used for the real-time optimal control of the milling process. In IACC, a simplified BP algorithm is used to learn online, the reverse function of the milling system and realize the real-time adaptive control in the milling process; some expert rules are combined in the BP neural network controller so as to ensure the reliability and stabilit.
Surface of Flow and Force Effective Areas Applied to Development of Reciprocating Compressors

The concept of flow and force effective areas is extensively used to simulate the pressure-volume diagram helping to calculate the thermodynamic power consumption of the discharge process. The main advantage is to permit analysis in different application conditions in few seconds. Commonly, the discharge flow and force effective areas are evaluated in CFD steady state analysis with different discharge valve positions resulting in curves relating effective areas with valve displacement. This work presents a detailed study of the discharge process and proposes the use of response surfaces methodology to represent the discharge effective areas indicating a better reproduction of the physical phenomena, mainly in the region of the end of discharge process. The proposed method was compared simultaneously with the curve's effective area and experimental results.
A pure vision-based topological SLAM system

In this paper, we present a feasible solution to the problem of autonomous navigation in initially unknown environments using a pure vision-based approach. The mobile robot performs range sensing with a unique omnidirectional stereovision system, estimates its motion using visual odometry and detects loop closures via a place recognition system as it performs topological map building and localization concurrently. Owing to the importance of performing loop closing regularly, the mobile robot is equipped with an active loop closure detection and validation system that assists it to return to target loop closing locations, validates ambiguous loop closures and provides it with the ability to overturn the decision of an incorrectly committed loop closure. A refined incremental probabilistic framework for an appearance-based place recognition system is fully described and the final system is validated in multiple experiments conducted in indoor, semi-outdoor and outdoor environments. Lastly, the performance of the probabilistic framework is compared with the rank-based framework with additional experiments conducted in the semi-autonomous mode, where the mobile robot, provided with a priori information in the form of a topological map that is built in a separate occasion in an offline manner, is required to reach its target destination.
Floating Costa Scheme with fractal structure for information embedding

Nowadays, multimedia data protection widely uses data hiding technology like Digital Watermarking or steganography. Among the large offer of watermarking techniques several ones are now based on the side information scheme proposed by Costa. These techniques mainly use scalar quantization for embedding a given information. Such solutions have good properties in terms of robustness and capacity but has lack of statistical transparency. In this paper we propose a new watermarking scheme based on a floating quantizer with a fractal structure. The aim of this study is to get rid of the unwanted fluctuations in the probability density function (PDF) of the watermarked signal, caused by the use of a scalar quantizer in the Scalar Costa Scheme approach (SCS). We present here the structure of a Fractal based Costa Scheme (FCS) and detail its performances. Afterwards, we compare the performances of our FCS proposed method with those obtained with the reference SCS. We show that we are able to reduce the statistical distortions obtained with this proposed scheme and keep good robustness properties.
Independent Power Splitting for Interference-Corrupted SIMO SWIPT Systems

In this letter, the design and performance of independent power splitting (PS) is investigated for interference-corrupted SIMO simultaneous wireless information and power transfer (SWIPT) systems. Namely, each antenna is connected to an individual power splitter at the receiver, and the corresponding PS factors for different antennas are jointly optimized to provide the more favorable tradeoff between the achieved data rate and harvested energy. Besides perfect channel state information (CSI) model, imperfect CSI model is also considered for the interference channel to evaluate the performance gain more practically. By proving the convexity of the considered two problems, the optimal algorithms are proposed to derive the achievable rate-energy (R-E) regions. Through simulations, it is shown that the R-E region increases notably by adopting independent PS, especially when the signal processing noise is large at the receiver. Moreover, when the energy demand is high, interference signal is beneficial and can enhance the achievable data rate significantly.
Pentoxifylline for diabetic retinopathy.

BACKGROUND There is increasing evidence that capillary occlusion plays an important part in the development of diabetic retinopathy. Disaggregants, such as pentoxyfilline may influence the outcome and progression of diabetic retinopathy, but no systematic review of the literature on its efficacy and safety has been published to examine this hypothesis. OBJECTIVES The aim of the current research was to review the literature in a systematic way in order to assess the effects of pentoxyfilline for diabetic retinopathy in methodologically robust trials. The null hypothesis was that pentoxyfilline has no influence on the progression of diabetic retinopathy or blindness. SEARCH STRATEGY A systematic search of electronic databases was carried out to identify publications. Relevant papers, written in any language, were accessed and assessed for data. SELECTION CRITERIA Only randomized controlled clinical trials (RCTs) evaluating the effects of pentoxyfilline in the treatment of diabetic retinopathy were to be included. DATA COLLECTION AND ANALYSIS Two authors independently assessed studies for inclusion criteria and for risk of bias. MAIN RESULTS A total of 97 publications were identified by the electronic search and two authors checked the abstracts. Of these, 17 were identified as potentially relevant trials providing information about treatment of patients with diabetic retinopathy using pentoxyfilline and were read in full. Unfortunately, no publication fulfilled our inclusion criteria. AUTHORS' CONCLUSIONS No sound research to date has examined the treatment of diabetic retinopathy with pentoxyfilline in such a way as to indicate whether this form of intervention has a significant impact on the natural history of this clinical condition. The potential role of this substance in the treatment of diabetic retinopathy remains open to debate, and it is suggested that future research focusing on patient-relevant outcomes takes the opportunity of addressing this important issue directly.
Quicker reaction, lower variability: The effect of transient time in flow variability of project-driven production

Based on the knowledge of dynamic systems, the shorter the transient response, or the faster a system reaches the steady-state after the introduction of the change, the smaller will be the output variability. In lean manufacturing, the principle of reducing set-up times has the same purpose: reduce the transient time and improve production flow. Analogously, the analysis of the transient response of project-driven systems may provide crucial information about how fast these systems react to a change and how that change affects their production output. Although some studies have investigated flow variability in projects, few have looked at variability from the perspective that the transient state represents the changeovers on project-driven production systems and how the transient state affects the process' flow variability. The purpose of this study is to investigate the effect of changes in project-driven production systems from a conceptual point of view, furthermore, measuring and correlating the transient response of five cases to their flow variability. Results showed a proportional relationship between the percentile transient time and flow variability of a process. That means that the quicker the production system reacts to change; the less the distress in the production output, consequently, lower levels of flow variability. As practical implications, lean practices focusing on reducing set-up times (transient time) can have their effects measured on project-driven production flow.
Recurrent Seizures in the Developing Brain Are Harmful

Pediatricians like children. In their desire to help their beloved patients and to reassure anxious families, they are sometimes reluctant to consider the possibility that their traditional therapeutic strategies might have been less than optimal. Yet this is precisely what they should consider at present when they think about status epilepticus (SE). The main foundation of the generally held belief that “It is not the status epilepticus that produces the damage but rather the underlying insult to the brain that causes both status epilepticus and damage” (1) is the experimental data showing that “there is no evidence . that SE produces structural damage in the young . as long as the animal has not reached adolescence” (2), and that assumption is changing. Several new experimental models show that seizures in themselves can damage the immature brain. The argument that the experimental data obtained in animals are irrelevant to humans is shaky. The human brain differs from that of other mammals more in size and organization than in its basic cell biology, and the latter is the main determinant of neuronal injury. Neither should therapeutic considerations influence the answer to the question asked in this debate. There may be circumstances in which treatment is more dangerous than the illness itself but that should not lead us to deny any possibility of seizure-induced damage when we are faced with evidence to the contrary. Finally, we should not forget that outcome studies can vastly underestimate the degree of brain damage. In most cell groups in the brain, clinical symptoms do not appear until 80% of the cells are lost. Furthermore, children make amazing recoveries from almost any insult. The outcome may be good even when considerable damage has occurred.
Kallmann Syndrome : Clinical and molecular genetic features in Finland

11 In conclusion, KS is a rare condition, with a minimal incidence estimate of 1:48 000 in Finland. Approximately 40% of the cases attained a molecular genetic cause for the condition; particularly, Finnish KS women frequently harbored a mutation in FGFR1. A considerable proportion of male patients with HH may recover in early adulthood. We therefore recommend that all adolescents and young adults with congenital HH should be informed on the possibility of reversal. However, HH patients may still require life-long follow-up to avoid inadequate hormone treatment, long treatment pauses, and further morbidity. Finally, isolated cryptorchidism is not commonly caused by defects in genes involved in congenital HH.
Melt Electrospinning Writing of Poly‐Hydroxymethylglycolide‐co‐ε‐Caprolactone‐Based Scaffolds for Cardiac Tissue Engineering

Current limitations in cardiac tissue engineering revolve around the inability to fully recapitulate the structural organization and mechanical environment of native cardiac tissue. This study aims at developing organized ultrafine fiber scaffolds with improved biocompatibility and architecture in comparison to the traditional fiber scaffolds obtained by solution electrospinning. This is achieved by combining the additive manufacturing of a hydroxyl‐functionalized polyester, (poly(hydroxymethylglycolide‐co‐ε‐caprolactone) (pHMGCL), with melt electrospinning writing (MEW). The use of pHMGCL with MEW vastly improves the cellular response to the mechanical anisotropy. Cardiac progenitor cells (CPCs) are able to align more efficiently along the preferential direction of the melt electrospun pHMGCL fiber scaffolds in comparison to electrospun poly(ε‐caprolactone)‐based scaffolds. Overall, this study describes for the first time that highly ordered microfiber (4.0–7.0 µm) scaffolds based on pHMGCL can be reproducibly generated with MEW and that these scaffolds can support and guide the growth of CPCs and thereby potentially enhance their therapeutic potential.
Acupuncture does not ameliorate metabolic disturbances in the P450 aromatase inhibitor‐induced rat model of polycystic ovary syndrome

What is the central question of this study? The effectiveness of low‐frequency electroacupuncture in the treatment of metabolic disorders associated with polycystic ovary syndrome (PCOS), an endocrine–metabolic disorder characterized by an imbalance in sex steroid production, is controversial. What is the main finding and its importance? In a rat model of PCOS induced by the inhibition of P450 aromatase, low‐frequency electroacupuncture increased low‐density lipoprotein–cholesterol but did not improve the insulin resistance or the adipose tissue dysfunction, suggesting that a balance of sex steroids is needed to restore the metabolic function in this rat model of PCOS.
LABDA at SemEval-2017 Task 10: Extracting Keyphrases from Scientific Publications by combining the BANNER tool and the UMLS Semantic Network

This paper describes the system presented by the LABDA group at SemEval 2017 Task 10 ScienceIE, specifically for the subtasks of identification and classification of keyphrases from scientific articles. For the task of identification, we use the BANNER tool, a named entity recognition system, which is based on conditional random fields (CRF) and has obtained successful results in the biomedical domain. To classify keyphrases, we study the UMLS semantic network and propose a possible linking between the keyphrase types and the UMLS semantic groups. Based on this semantic linking, we create a dictionary for each keyphrase type. Then, a feature indicating if a token is found in one of these dictionaries is incorporated to feature set used by the BANNER tool. The final results on the test dataset show that our system still needs to be improved, but the conditional random fields and, consequently, the BANNER system can be used as a first approximation to identify and classify keyphrases.
Voltage and Reactive Power Control in Systems With Synchronous Machine-Based Distributed Generation

This paper investigates voltage and reactive power control in distribution systems and how the presence of synchronous machine-based distributed generation (DG) affects the control. A proper coordination among the onload tap changer (OLTC), substation switched capacitors and feeder-switched capacitors in order to obtain optimum voltage and reactive power control is proposed. It is assumed that there is no communication link between the OLTC and the capacitors, a normal case in distribution system operation these days. The results indicate that the proposed method decreases the number of OLTC operations, losses, and voltage fluctuations in distribution systems, with and without DG present. The power-flow reversal due to the DG is shown not to interfere with the effectiveness of the OLTC operation. Further, it is also shown that as long as the available capacitors are enough to compensate the reactive power demand, the DG operation mode does not give a significant effect to the distribution system losses. However, DG operating at a constant voltage is beneficial for a significant reduction of OLTC operation and voltage fluctuation in the distribution system.
Characterization of β‐turn and Asx‐turns mimicry in a model peptide: Stabilization via CH · · · O interaction

The chemical synthesis and single‐crystal X‐ray diffraction analysis of a model peptide, Boc–Thr–Thr–NH2 (1) comprised of proteinogenic residues bearing an amphiphilic Cβ‐stereogenic center, has been described. Interestingly, the analysis of its molecular structure revealed the existence of a distinct conformation that mimics a typical β‐turn and Asx‐turns, i.e., the two Thr residues occupy the left‐ and right‐corner positions. The main‐chain torsion angles of the N‐ and C‐terminal residues i.e., semiextended: ϕ = −68.9°, ψ = 128.6°; semifolded: ϕ = −138.1°, ψ = 2.5° conformations, respectively, in conjunction with a gauche− disposition of the obligatory C‐terminus Thr CγH3 group, characterize the occurrence of the newly described β‐turn‐ and Asx‐turns‐like topology. The preferred molecular structure is suggested to be stabilized by an effective nonconventional main‐chain to side‐chain CiO · · · HC γi+2 ‐type intraturn hydrogen bond. Noteworthy, the observed topology of the resulting 10‐membered hydrogen‐bonded ring is essentially similar to the one perceived for a classical β‐turn and the Asx‐turns, stabilized by a conventional intraturn hydrogen bond. Considering the signs as well as magnitudes of the backbone torsion angles and the orientation of the central peptide bond, the overall mimicked topology resembles the type II β‐turn or type II Asx‐turns. An analysis of Xaa–Thr sequences in high‐resolution X‐ray elucidated protein structures revealed the novel topology prevalence in functional proteins (unpublished). In view of indubitable structural as well as functional importance of nonconventional interactions in bioorganic and biomacromolecules, we intend to highlight the participation of Thr CγH in the creation of a short‐range CO · · · HCγ‐type interaction in peptides and proteins. © 2006 Wiley Periodicals, Inc. Biopolymers 81: 440–449, 2006
Ubiquitous commerce - always on, always aware, always pro-active

The development of the infrastructure for ubiquitous computing is progressing rapidly, yet the applications that will be built on this new infrastructure remain largely ill defined. What will we do with these emerging capabilities? Stock quotes in 3-D on your heads-up display? Sports scores in stereo sound? We believe that the new kinds of services will result from three primary capabilities of ubiquitous devices: (1) to provide a service channel for remote service providers through an "always on" connection, (2) to inform these services about the local context of the user through an array of sensors, and (3) to enable these services to affect things in the user environment through actuators and local communication links. The new services enabled by these capabilities will lead to a new era of ubiquitous commerce, and change all business functions from customer relationship management to enterprise and supply chain management.
ARPACK users' guide - solution of large-scale eigenvalue problems with implicitly restarted Arnoldi methods

List of figures List of tables Preface 1. Introduction to ARPACK. Important features Getting started Reverse communication interface Availability Installation Documentation Dependence on LAPACK and BLAS Expected performance P_ARPACK Contributed additions Trouble shooting and problems 2. Getting started with ARPACK. Directory structure and contents Getting started An example for a symmetric Eigenvalue problem 3. General use of ARPACK. Naming conventions, Precisions, and types Shift and invert spectral transformation mode Reverse communication structure for shift-Invert Using the computational modes Computational modes for real symmetric problems Postprocessing for Eigenvectors using dseupd Computational modes for real nonsymmetric problems Postprocessing for Eigenvectors Using dneupd Computational modes for complex problems Postprocessing for Eigenvectors Using zneupd 4. The implicitly restarted Arnoldi method: structure of the Eigenvalue problem Krylov subspaces and projection methods The Arnoldi factorization Restarting the Arnoldi method The generalized Eigenvalue problem Stopping Criterion 5. Computational routines. ARPACK subroutines LAPACK routines used by ARPACK BLAS routines used by ARPACK Appendix A. Templates and driver routines Symmetric drivers Real Nonsymmetric drivers Complex drivers Band drivers The singular value decomposition Appendix B. Tracking the progress of ARPACK. Obtaining trace output Check-pointing ARPACK Appendix C. The XYaupd ARPACK Routines. DSAUPD DNAUPD ZNAUPD Bibliography Index.
The Case for Community Hospital Angioplasty

Primary percutaneous coronary intervention (PCI) has gained widespread acceptance as the preferred approach for treating ST-segment elevation acute myocardial infarction (STEMI) when it can be performed rapidly at qualified centers. Primary PCI is superior to fibrinolytic therapy in fibrinolytic-eligible patients with STEMI; it reduces the rates of death, reinfarction, cerebral bleeding, reocclusion of the infarct artery, and recurrent ischemia compared with fibrinolytic therapy.1,2 It is much more effective than fibrinolytic therapy in restoring brisk coronary flow (>90% of patients). In addition, primary PCI is potentially applicable to a much broader spectrum of patients with STEMI than is fibrinolytic therapy. It reduces mortality 2-fold or more in the large group of patients inappropriate for fibrinolytic therapy.3,4 It is particularly beneficial in women and the elderly.5,6 A recent report of Medicare patients demonstrated that fibrinolytic therapy conferred a survival disadvantage in patients >75 years old, especially in women, compared with no reperfusion therapy.6 This population represents almost one third of patients with acute myocardial infarction (AMI). 7 The editorial that accompanied this study noted that “a recent observational study…has shown a marked reduction in 30-day mortality for primary PCI relative to fibrinolytic therapy in the elderly. However, primary PCI is not available at the hospitals where most elderly patients present with AMI. ”7 Unfortunately, only a small minority of patients with STEMI are treated with primary PCI in the United States (Figure 1). 8,9 The National Registry of Myocardial Infarction (NRMI) reports that the utilization of primary PCI has increased only slowly from 1994 to 2001, with recent data indicating that only 1 of 5 patients with STEMI is treated with primary PCI. Because the utilization of fibrinolytic therapy has decreased correspondingly, the use of any reperfusion therapy has not appreciably changed over this 8-year period. It …
Towards Online Goal Recognition Combining Goal Mirroring and Landmarks

Online goal recognition is the problem of recognizing the goal of an agent based on an incomplete sequence of incrementally revealed observations as early along the recognition process as possible. Recognizing goals with minimal domain knowledge as an agent executes its plan requires efficient algorithms to sift through a large space of hypotheses. We develop an online approach to goal recognition which operates in both continuous and discrete domains using a combination of Goal Mirroring and a generalized notion of landmarks adapted from the planning literature. Extensive experiments demonstrate the approach is more efficient and substantially more accurate than the state-of-the-art.