Miracle-dz/UniFAR-FTUs huggingface dataset:
A Low-Rank Model for Compressive Spectral Image Classification

Compressive sensing enables efficient acquisition of hyperspectral images (HSIs) by assuming high redundancy on natural scenes. Several reconstruction algorithms have been proposed to retrieve the underlying image, and most of them take advantage of the spatial and spectral correlations. However, reconstruction may not be necessary in certain applications such as land cover classification. Instead of knowing the full image, researchers are interested in features that could be extracted directly from the compressed measurements, which provide high inference capabilities. Low-rank (LR) matrix approximation has been widely used in feature extraction (FE), because it reduces the data dimension and computational cost. Therefore, in this paper, compressive hyperspectral imaging and FE are combined in a framework for HSI classification using an LR matrix approximation model. In the proposed framework, the compressed measurements are acquired from a single-pixel spectrometer. Instead of using the traditional high-complexity reconstruction model, an LR matrix factorization problem is formulated. The LR problem maximizes the posterior distribution with respect to the feature space and coefficients, and it is numerically solved based on an alternating optimization strategy. By incorporating spatial information, the numerical procedure minimizes the total variational of the feature coefficients subject to an orthogonality constraint for the feature space. Experiments on real HSIs show that the proposed approach can provide equally competitive classification results when compared to the traditional approach that performs FE and classification on the recovered images.
Tratamientos tópicos de la psoriasis: actualización Topical treatment of psoriasis: An update

Med Cutan Iber Lat Am 2005;33(4):147-157 147 Clasicamente, la psoriasis ha sido tratada con tratamientos topicos, sistemicos y fototerapia. Dichas modalidades de tratamiento pueden combinarse entre ellas y, de este modo, potenciar su efecto terapeutico. De todos ellos, el tratamiento topico representa el primer escalon terapeutico y punto de partida para el tratamiento de la psoriasis. Gracias a los nuevos avances en el tratamiento topico de la psoriasis, hoy en dia puede tratarse de forma mas segura y eficaz. Los corticoides topicos siguen siendo los farmacos mas utilizados aunque suelen administrarse en combinacion con otros principios activos y evitar asi su uso prolongado. El uso de antralina y alquitran ha disminuido con la disponibilidad de otros productos no corticoideos como el calcipotriol y el tazaroteno, de mas comoda posologia. Otros prometedores tratamientos topicos estan aun en fases de desarrollo. Esta revision se centrara en los principales tratamientos topicos para la psoriasis y se comentara brevemente los resultados obtenidos con los nuevos tratamientos topicos utilizados mas recientemente.
Validation of a Device to Accurately Monitor Knee Kinematics during Dynamic Movements

xii Chapter 1: Introduction . 1 Chapter 2: Background . 3 2.1Anatomy and physiology of the Lower limb . 3 2.2 Joints of the Lower Limb . 5 2.2. 1 Hip Joint . 5 2.2.2 Knee Joint . 5 2.2.3 Tibiofibular Joints . 7 2.2.4 Ankle Joints . 7 2.3 Knee Kinematics . 7 2.4 Injuries related to the Knee . 8 2.4. 1 Anterior Cruciate Ligament Injury . 9 2.5 Wearable Sensor Technology . 13 2.5. 1 Inertial Measurement Unit . 13 2.5. 2 Accelerometer . 14
Lyapunov Exponents for Quantum Channels: An Entropy Formula and Generic Properties

Abstract We denote by Mk the set of k by k matrices with complex entries. We consider quantum channels φL of the form: given a measurable function L: Mk → Mk and a measure µ on Mk we define the linear operator φL : Mk → Mk , by the law ρ → φL (ρ) = ∫ Mk L(v)ρL(v)† dµ(v). In a previous work, the authors show that for a fixed measure µ the Φ-Erg property is generic on the function L (also irreducibility). Here we will show that the purification property is also generic on L for a fixed µ. Given L and µ there are two related stochastic processes: one takes values on the projective space P (ℂ k ) and the other on matrices in Mk . The Φ-Erg property and the purification condition are the nice hypothesis for the discrete time evolution given by the natural transition probability. In this way it will follow that generically on L, if ∫ |L(v)|2 log |L(v)| dµ(v) < ∞, the Lyapunov exponents ∞ > γ 1 ≥ γ 2 ≥ … ≥ γk ≥ −∞ are well defined. In a previous work, the concepts of entropy of a channel and Gibbs channel were presented; and also an example (associated to a stationary Markov chain) in which this definition of entropy (for a quantum channel) matches the Kolmogorov-Shanon definition of entropy. We estimate here the larger Lyapunov exponent for the mentioned example and we show that it is equal to −1/2 h, where h is the entropy of the associated Markov invariant probability.
Tibial implant fixation in TKA worth a revision?—how to avoid stress-shielding even for stiff metallic implants

Abstract In total knee arthroplasty (TKA), force is transmitted into the tibia by a combined plate-stem device along with cemented or cementless stem fixation. The present work analyzes this force transmission in finite element simulations with the main aim to avoid reported postsurgical bone density reduction as a consequence of a reduced tibial bone loading. In the numerical analysis different implant materials, stem/extension lengths and implant-to-stem interface conditions are considered, from a stiff fully cemented fixation to sliding contact conditions with a low friction coefficient. The impact of these variations on bone loading changes are measured by (i) decomposing the total force into parts mediated by the plate and by the stem and by (ii) post-surgery strain energy density (SED) deviations. Based on a bionics-inspired perspective on how nature in pre-operative conditions carries out force transfer from the knee joint into the tibia, a modified implant–bone interface is suggested that alters force transmission towards physiological conditions while preserving the geometries of the standard plate-stem endoprosthesis design. The key aspect is that the axial force is predominantly transmitted through the plate into proximal bone which requires a compliant bone-stem interface as realized by sliding friction conditions at a low friction coefficient. These interface conditions avoid stress shielding almost completely, preserve pre-surgery bone loading such that bone resorption is not likely to occur.
Energy, spectral, and angular properties of post-filamentation channels during propagation in air and condensed media

High-power femtosecond laser pulses undergo large-scale transformations during filamentation in a nonlinear medium. Spatial transformations result in the formation of the post-filamentation channels—intense spatially localized light structures observed in the laser beam at the plasma-free stage of pulse propagation. We present the experimental results on the main characteristics of post-filamentation channels formed by the filamentation of Ti:sapphire laser pulses (744 nm, 90 fs) in air. Angular divergence, spectral composition, power, and temporal parameters of post-filamentation channels at different initial pulse energy are investigated. We study a specific cascade pulse filamentation regime when the post-filamentation channel is initially formed in air and then experiences recurrent filamentation in a condensed medium (fused silica).
Standardisation of tree spacing and organic manure dose for growing garden pea under Grewia optiva D. based agri silviculture system

A field experiment was carried out to explore the possibilities of successful cultivation of garden pea as intercrop under different spacings of Grewia optiva, to standardise the tree spacing and organic manure dose for optimum growth and yield of garden pea. The experiment comprised of four treatment of tree spacing (8m×1m, 8m×2m, 8m×3m and open i.e. tree less area) and eight manure doses treatment (T1-160% of recommended doses of Nitrogen through Vermicompost and Poultry manure in 50-50 ratio, T2-140% of RD N through VC and PM, T3-120% of RD N through VC and PM, T4-100% of RD N through VC and PM, T5-80% of RD N through VC and PM, T6-60% of RD N through VC and PM, T7-100% of RD of NPK and T8-Control i.e. no manures and fertilisers). Growing of Garden pea with the use of 120% of the recommended doses of nitrogen through vermicompost and poultry manure, under 8m×3m spacing of grewia was found better to other treatment combinations with respect to growth, yield, net revenue and B:C ratio.
A Modified Fletcher–Reeves Conjugate Gradient Method for Monotone Nonlinear Equations with Some Applications

One of the fastest growing and efficient methods for solving the unconstrained minimization problem is the conjugate gradient method (CG). Recently, considerable efforts have been made to extend the CG method for solving monotone nonlinear equations. In this research article, we present a modification of the Fletcher–Reeves (FR) conjugate gradient projection method for constrained monotone nonlinear equations. The method possesses sufficient descent property and its global convergence was proved using some appropriate assumptions. Two sets of numerical experiments were carried out to show the good performance of the proposed method compared with some existing ones. The first experiment was for solving monotone constrained nonlinear equations using some benchmark test problem while the second experiment was applying the method in signal and image recovery problems arising from compressive sensing.
Analysis of Inductive Coupling Wireless Power Transfer Systems

Inductive coupling wireless power transfer (WPT) technology is gaining increasing popularity in recent years, especially in the field of wireless charging of portable devices. Although the principles behind WPT systems can be explained using well known results from electromagnetic theory, many questions remain regarding the behavior of such systems. This thesis focuses on identifying and analyzing the most important parameters of such system, with emphasis on the coupling factor. Algorithms to calculate the coupling factor and other parameters based on mathematical models of physical phenomena are developed and presented. This algorithm development is also called the analytical approach. For the coupling factor part, a commercial electromagnetic simulation software (Ansys Maxwell) was selected to validate the results obtained from the corresponding algorithm and also evaluate the performance of general-purpose simulators suitable for use in this field. For other WPT system parameters, the algorithm was compared to the results from LTspice. The results obtained from the developed algorithms and simulations are compared to measurement results collected from real transmitter and receiver coils. The results show that both the analytical and simulation approaches can provide estimated parameter values of interest that are close to the empirical values, with percentage error being in the low single digits in most scenarios. However, the developed algorithms are more specialized, and hence easy to implement and computationally more efficient. Consequently, they can be used to generate larger amounts of data for detailed analysis and characterization of WPT systems with relative ease. (Less)
Factores pronsticos en la EPOC

Prolongar la supervivencia de los pacientes con enfermedad pulmonar obstructiva cronica (EPOC) es, y ha sido durante decadas, un objetivo complicado. Sin embargo, poco a poco esta percepcion empieza a cambiar. De la mano de un mejor conocimiento etiopatogenico de la enfermedad, del analisis de las causas de muerte y sobre todo de la identificacion de diversos factores pronosticos, se van dando pasos firmes que permiten afrontar el futuro con mayor optimismo. La presente revision pretende analizar de forma pormenorizada los principales determinantes pronosticos que se han descrito en la literatura medica y valorar sus posibles implicaciones terapeuticas. Tradicionalmente se ha aceptado que el volumen espiratorio forzado en el primer segundo y su descenso acelerado a lo largo del tiempo era uno de los mejores predictores de mortalidad. Este hecho condiciono durante decadas el objetivo terapeutico en la EPOC. Sin embargo, hoy sabemos que la EPOC es una enfermedad con multiples dimensiones, algunas de las cuales tienen importantes consecuencias pronosticas. La hiperinsuflacion pulmonar, la tolerancia al esfuerzo, las exacerbaciones, la co-morbilidad y las manifestaciones sistemicas, especialmente las resultantes de la esfera cardiovascular, son dimensiones que en los ultimos anos se han revelado como potentes predictores de muerte. El sustrato inflamatorio, tanto local como sistemico, parece estar detras de muchas de estas manifestaciones y por ello merece especial consideracion. Estos nuevos factores pronosticos tienen la virtud de ser potencialmente modificables, lo que subraya la necesidad de planificar intervenciones terapeuticas orientadas a revertir sus efectos cambiando de alguna forma la estrategia tradicional.
Réponses au sevrage de porcs de lignées divergentes pour l’efficacité alimentaire en fonction de l’aliment

La selection pour l’efficacite alimentaire peut affecter la capacite des porcs a repondre au stress. La reponse au sevrage a ete etudiee dans deux lignees de porcs divergentes pour la consommation moyenne journaliere residuelle (CMJR). Un total de 132 porcs par lignee, places en loges collectives, ont recu un regime en post-sevrage conventionnel (deux phases) ou securisant (trois phases). Les poids vifs et diarrhees ont ete enregistres au sevrage (28 jours, J0), a J1, J2, J6, J12, J19, J26 et en fin de post-sevrage (J42). L’ingere par loge a ete enregistre. Aucun antibiotique n’a ete distribue. Les porcs de la lignee a CMJR reduite (CMJR–, plus efficaces) etaient plus lourds au sevrage, avec moins de diarrhees a J1 et J2 que les porcelets de la lignee a CMJR haute (CMJR+) (P<0,01). A J42, les poids vifs n’etaient pas differents entre lignees. Les porcs CMJR–avaient un ingere et une vitesse de croissance reduits entre J0 et J18 par rapport aux CMJR+ (P<0,001) et des teneurs en acides gras libres plasmatiques plus elevees (P<0,001). Ils presentaient plus de diarrhees a J6 (22% vs 14%), mais les teneurs plasmatiques en haptoglobine ne suggeraient pas d’inflammation majeure. Le regime securisant ameliorait les performances en debut de post-sevrage chez les CMJR–(P<0,001). En conclusion, la lignee la plus efficace semble plus sensible au sevrage mais aussi plus resiliente pour retrouver son niveau de performances initial, et le regime securisant a un effet chez les porcelets les plus sensibles.
Duality of Spoof Surface Plasmon Polaritons on the Complementary Structures of Ultrathin Metal Films

Complementary metal structures manifest a remarkable scattering feature, known as Babinet's principle. Meanwhile, for surface modes confined to one or two dimensions, the relation between the modes on complementary structures has not been thoroughly studied. Here, spoof surface plasmon polaritons supported on complementary metal films are systematically investigated. The duality of electromagnetism guarantees that these surface modes on complementary metal films possess precisely the same dispersion regardless of the geometry of the grooves, which is confirmed by both numerical simulations and experimental measurements. This work may open another avenue for spoof surface plasmon polaritons in both the theoretical and practical aspects.
Sparse Signal Recovery in MIMO Specular Meteor Radars With Waveform Diversity

Since the 1950s, specular meteor radars (SMRs) have been used to study the mesosphere and lower thermosphere (MLT) dynamics. Atmospheric parameters derived from SMRs are highly dependent on the number of detected meteors and the accuracy of the meteors’ locations. Recently, incoherent and coherent multiple-input-multiple-output (MIMO) radar approaches combined with waveform diversity have been proposed to increase the number of detected meteors and to improve time, altitude, and horizontal resolution of the estimated wind fields. The incoherent MIMO approach refers to the addition of new transmit sites (widely separated), whereas the coherent MIMO refers to the addition of new transmit antennas in the same site (closely separated). In both the cases, a different pseudorandom sequence is transmitted from each antenna element. Unfortunately, the addition of new transmit antennas with different code sequences degrades the performance of conventional signal recovery algorithms. This is a consequence of the cross-interference between the transmitted waveforms, making it worse as the number of transmitters increases. In this article, we propose a signal recovery approach based on compressed sensing, taking advantage of the sparse nature of specular meteor echoes. The approach allows the exact recovery of weak echoes even in interference environments. Besides the advantage of the proposed approach to recover the meteor signal, we discuss the optimal selection of the transmitted waveforms and the minimum code length required for exact recovery. Additionally, we propose a modification of the orthogonal matching pursuit algorithm used in sparse problems to make it applicable in real-time analysis of large data. The success of the proposed approach is corroborated using Monte Carlo simulations and real data from a multi-static spread spectrum meteor radar network installed in northern Germany.
PHRASEOLOGY DISCOURSE IN AIR TRAFFIC CONTROLLERâ€™S COMMUNICATION

ABSTRACT This writing deals with the types of phraseology in air traffic controllerâ€™s communication. The objective of this writing is to find out the types of phraseology used in communication between ATC of KNIA and pilot. The source of this writing is an air traffic controller of KNIA. The data of this writing are the communication between controller and pilot which spoken in statements or commands called phraseology (words and phrases). Descriptive qualitative method is applied as a qualitative design in conducting this research. The instrument of data collection is voice recorder to record the data. Keywords: phraseology, air traffic controller, communication
SIMULASI PENGENALAN WAJAH MANUSIA MENGGUNAKAN METODE ANALISIS DISKRIMINAN LINEAR DUA DIMENSI (2D-LDA) DENGAN JARAK MANHATTAN, CANBERRA DAN EUCLIDEAN

Wajah merupakan salah satu ciri biometrika yaitu ciri dari tiap-tiap individu yang unik yang tidak dimiliki individu lainnya selain individu tersebut. Pada teknik pengolahan citra digital ciri biometrika wajah dapat digunakan pada sistem pengenalan wajah dengan melakukan proses ekstraksi ciri nilai piksel citra wajah tersebut menggunakan beberapa metode ekstraksi ciri yang ada, salah satunya metode Analisis Diskriminan Linear Dua Dimensi (2-Dimensional Linear Discriminant Analysis atau 2D-LDA). Pada Tugas Akhir ini dirancang sebuah perangkat lunak simulasi pengenalan wajah manusia berdasarkan variasi posisi dan ekspresi tertentu wajah. Pada simulasi ini proses pengenalan wajah manusia diawali dengan tahap prapengolahan dan selanjutnya tahap ekstraksi ciri dari citra wajah manusia menggunakan metode 2D-LDA. Tahap terakhir adalah proses pengenalan dengan melakukan perhitungan jarak terkecil vektor ciri citra yang akan dikenali dengan semua vektor ciri yang ada di basis data yaitu dengan menggunakan 3 variasi jarak yaitu Jarak Manhattan, Canberra dan Euclidean. Berdasarkan pengujian pada keseluruhan data dengan variasi jumlah ciri yang dipertahankan 100, 75, dan 50, tingkat keberhasilan tertinggi adalah pada penggunaan jarak Canberra dengan nilai persentase akurasinya sama pada saat jumlah ciri yang dipertahankan 100, 75 maupun 50 yaitu sebesar 96,67%. Selain citra wajah yang sudah terdaftar, terdapat pula pengujian citra luar yang tidak terdaftar pada basis data dan nilai persentase akurasi tertinggi diperoleh dengan menggunakan jarak Canberra dengan nilai akurasinya sama untuk semua variasi jumlah ciri yang dipertahankan yaitu 80%.
Human Eye: On the Importance of Novel Procedures and Devices based on Integrated Engineering-Medical Data

Research activities in the field of ophthalmology are becoming more and more important, since a number of issues related to the complex physical phenomena occurring inside the eye must be addressed. Different coupled physical mechanisms need to be studied, such as biological processes, heat and mass transfer, interaction with porous media, fluid structure interaction and others. Surgeries on human eyes can be optimized thanks to the improvement of knowledge, based on scientific research findings. The practical consequence is that post-operative complications can be reduced, with increase of life quality.
Construction of Inverse Reinforcement Dynamics Learning Framework based on Maximum Entropy Principle

Recently, reinforcement learning (RL) has been showing an increasingly high performance in a variety of complex tasks of decision making and control, but RL requires quite careful engineering of reward functions to solve real tasks. Inverse reinforcement learning (IRL) is a framework to construct reward functions by learning from demonstration, but most of IRL algorithms require many accesses to the dynamics, though our access to and knowledge about the dynamics is often limited. To deal with this uncertainty of the dynamics, we propose a novel mathematical framework for constructing reward and dynamics by extending the celebrated maximum entropy framework of IRL.
Distance-Range-Oriented Constellation Design for VLC-SCMA Downlink With Signal-Dependent Noise

In this letter, the constellation design for a sparse code multiple access-based visible light communication downlink is studied. The noise at the receiving avalanche photodiode is dependent on the signal intensity, and the associated design problems are typically intractable. We point out that for such a system, both the minimum Euclidean distance (MED) and rotated-MED-based methods are not the optimal optimization objective, and propose a distance-range-oriented (DRO) modulation, where a linear combination of the minimum and maximum Euclidean distance is considered. We observe in the simulation results that the proposed DRO-based scheme outperforms the MED and rotated-MED-based ones across a wide range of signal and noise levels.