Miracle-dz/UniFAR-FTUs huggingface dataset:
CMOS Doherty Amplifier With Variable Balun Transformer and Adaptive Bias Control for Wireless LAN Application

This paper presents a novel CMOS Doherty power amplifier (PA) with an impedance inverter using a variable balun transformer (VBT) and adaptive bias control of an auxiliary amplifier. Unlike a conventional quarter-wavelength (λ/4) transmission line impedance inverter of a Doherty PA, the proposed VBT impedance inverter can achieve load modulation without any phase delay circuit. As a result, a λ/4 phase compensation circuit at the input path of the auxiliary amplifier can be removed, and the total size of the Doherty PA can be reduced. Additionally, an enhancement of the power efficiency at backed-off power levels can successfully be achieved with an adaptive gate bias in a common gate stage of the auxiliary amplifier. The PA, fabricated with 0.13-μm CMOS technology, achieved a 1-dB compression point (P1 dB) of 31.9 dBm and a power-added efficiency (PAE) at P1 dB of 51%. When the PA is tested with 802.11g WLAN orthogonal frequency division multiplexing (OFDM) signal of 54 Mb/s, a 25-dB error vector magnitude (EVM) compliant output power of 22.8 dBm and a PAE of 30.1% are obtained, respectively.
Analytical modeling of a conducting polymer‐driven catheter

A time-dependent electrochemical and mechanical model of the bending of a conducting polymer actuator-driven structure is presented, and the predicted response is compared with experimental results. The model uses time constants obtained from a transmission line model to describe the electronic and ionic charge transport into the polymer actuator. It then relates the charge transport to the mechanical deflection of the actuator structure. The model is used to predict the time-dependent bending of an active catheter, which is ultimately intended for use in intravascular imaging. A commercial catheter is coated with polypyrrole and laser micromachined into electrodes, which are electrochemically activated, leading to bending of the catheter. The time-dependent bending is compared with the dynamic beam bending model, with measured physical properties including elastic moduli, strain to charge ratio, electronic conductivity, ionic conductivity and capacitance used in the model to successfully describe the dynamics. The results of this comparison are used to determine the primary factors limiting catheter bending speed, and to suggest an optimal polypyrrole geometry and electrochemical parameters in order to achieve faster response. Copyright © 2010 Society of Chemical Industry
Envoplakin, a novel precursor of the cornified envelope that has homology to desmoplakin

The cornified envelope is a layer of transglutaminase cross-linked protein that is deposited under the plasma membrane of keratinocytes in the outermost layers of the epidermis. We present the sequence of one of the cornified envelope precursors, a protein with an apparent molecular mass of 210 kD. The 210-kD protein is translated from a 6.5- kb mRNA that is transcribed from a single copy gene. The mRNA was upregulated during suspension-induced terminal differentiation of cultured human keratinocytes. Like other envelope precursors, the 210- kD protein became insoluble in SDS and beta-mercaptoethanol on activation of transglutaminases in cultured keratinocytes. The protein was expressed in keratinizing and nonkeratinizing stratified squamous epithelia, but not in simple epithelia or nonepithelial cells. Immunofluorescence staining showed that in epidermal keratinocytes, both in vivo and in culture, the protein was upregulated during terminal differentiation and partially colocalized with desmosomal proteins. Immunogold EM confirmed the colocalization of the 210-kD protein and desmoplakin at desmosomes and on keratin filaments throughout the differentiated layers of the epidermis. Sequence analysis showed that the 210-kD protein is homologous to the keratin- binding proteins desmoplakin, bullous pemphigoid antigen 1, and plectin. These data suggest that the 210-kD protein may link the cornified envelope to desmosomes and keratin filaments. We propose that the 210-kD protein be named "envoplakin. "
A pedestrian flow analysis system using Wi-Fi packet sensors to a real environment

The authors have been developing the system, which analyzes pedestrian flow using Wi-Fi packet sensors. The sensors collect Wi-Fi packet called probe request packet, which is transmitted from a smartphone to search Wi-Fi access points. In addition, the cloud storage server is running to manage observed packets centrally and to compute pedestrian flow in real time. Additionally, user movement history is vitally important and we have to pay close attention to handling that kind of data. Therefore, the system runs with an anonymization method and a cryptographic function. Some kinds of demonstration experiments were held in real environment. As a result, it was confirmed that we can analyze the rough tendency of pedestrian flow using the present system and simple analysis methods.
Euronews: a multilingual benchmark for ASR and LID

In this paper we present the ﬁrst recognition experiments on a multilingual speech corpus, designed for Automatic Speech Recognition (ASR) and Language IDentiﬁcation (LID) purposes. Data come from the portal Euronews and were acquired both from the Web and from TV. The corpus includes data in 10 languages (Arabic, English, French, German, Italian, Polish, Portuguese, Russian, Spanish and Turkish). For each language, the corpus is composed of about 100 hours of speech for training (60 for Polish) and about 4 hours, manually transcribed, for testing. Training data include the audio, some reference text, the ASR output and their alignment. 10 baselines were prepared - one for each language - using only the training data, and performance are evaluated on a subset of the test data. Also a LID system was implemented, capable to recognize words belonging to different languages in a continuous stream. Part of the corpus is freely available, for research purposes only, within the multilingual ASR benchmark for IWSLT 2014.
Learning verb alternations in a usage-based Bayesian model

One of the key debates in language acquisition involves the degree to which children’s early linguistic knowledge employs abstract representations. While usage-based accounts that focus on input-driven learning have gained prominence, it remains an open question how such an approach can explain the evidence for children’s apparent use of abstract syntactic generalizations. We develop a novel hierarchical Bayesian model that demonstrates how abstract knowledge can be generalized from usage-based input. We demonstrate the model on the learning of verb alternations, showing that such a usage-based model must allow for the inference of verb class structure, not simply the inference of individual constructions, in order to account for the acquisition of alternations.
An improved ultra-performance liquid chromatography-electrospray ionization/quadrupole-time-of-flight high-definition mass spectrometry method for determining ingredients of herbal Fructus corni in blood samples

Background: Fructus Corni (FC), a well-known traditional Chinese medicine (TCM), derived from the dry ripe sarcocarp of Cornus officinalis Sieb. et Zucc (Cornaceae), has been widely prescribed to treat disease in China for centuries. It has attracted increasingly much attention as one of the most popular and valuable herbal medicine in clinic. However, the systematic analysis of the chemical constituents of FC is difficult to determine and remain unclear. Materials and Methods: In this work, a rapid, sensitive, and reliable ultra-performance liquid chromatography-electrospray ionization/quadrupole-time-of-flight high-definition mass spectrometry (UPLC-ESI/QTOF/MS) with automated data analysis (MetaboLynx™) in negative ion mode were established to characterize the chemical constituents of FC and simultaneously identify components in blood after oral administration of FC, respectively. The analysis was performed on a Waters UPLC™ HSS T3 (2.1 × 100 mm, 1.8 μm) using gradient elution system. MS/MS fragmentation behaviors were proposed for aiding the structural identification of the components. Results: With optimized conditions, a total of 34 peaks were obtained from FC, 23 of which were tentatively characterized by comparing the retention time and mass spectrometry data and retrieving the reference literatures. Of note, the 25 compounds were identified after oral administration of FC, which might be the potential active components in vivo. Conclusion: The present study demonstrates the potential of UPLC-ESI/QTOF/MS approach for the rapid and reliable characterization of the metabolites of natural products.
Implementation of Massive Agent Model Using Repast HPC and GPU

Agent Based Model (ABM) is efficient for analysis of various social mechanisms. Recently, there are many studies on massive agent model to explain more complex social phenomena. Then, we aim for implementation of large scale simulation model using Repast HPC toolkit, a platform for massive agent model. In this article, we build "Schelling Segregation Model" for spatial model using geospatial data provided OpenStreetMap, an open source project creating a free editable map. In this model, agents are located continuous space, not grid in original. When an agent is "unhappy" and migrates to new location, it costs agents some simulation time depending on distance between old location and new one. This article reports simulation results using Japanese cities and verification result about execution time.
An Analysis on Performance of Decision Tree Algorithms using Student's Qualitative Data

Decision Tree is the most widely applied supervised classification technique. The learning and classification steps of decision tree induction are simple and fast and it can be applied to any domain. In this research student qualitative data has been taken from educational data mining and the performance analysis of the decision tree algorithm ID3, C4.5 and CART are compared. The comparison result shows that the Gini Index of CART influence information Gain Ratio of ID3 and C4.5. The classification accuracy of CART is higher when compared to ID3 and C4.5. However the difference in classification accuracy between the decision tree algorithms is not considerably higher. The experimental results of decision tree indicate that student's performance also influenced by qualitative factors.
Neogenin Promotes BMP2 Activation of YAP and Smad1 and Enhances Astrocytic Differentiation in Developing Mouse Neocortex

Neogenin, a DCC (deleted in colorectal cancer) family receptor, is highly expressed in neural stem cells (NSCs). However, its function in NSCs remains to be explored. Here we provide in vitro and in vivo evidence for neogenin's function in NSCs to promote neocortical astrogliogenesis, but not self-renewal or neural differentiation. Mechanistically, neogenin in neocortical NSCs was required for BMP2 activation of YAP (yes associated protein). The active/nuclear YAP stabilized phospho-Smad1/5/8 and was necessary for BMP2 induction of astrocytic differentiation. Deletion of yap in mouse neocortical NSCs caused a similar deficit in neocortical astrogliogenesis as that in neogenin mutant mice. Expression of YAP in neogenin mutant NSCs diminished the astrocytic differentiation deficit in response to BMP2. Together, these results reveal an unrecognized function of neogenin in increasing neocortical astrogliogenesis, and identify a pathway of BMP2-neogenin-YAP-Smad1 for astrocytic differentiation in developing mouse neocortex. SIGNIFICANCE STATEMENT Astrocytes, a major type of glial cells in the brain, play important roles in modulating synaptic transmission and information processing, and maintaining CNS homeostasis. The abnormal astrocytic differentiation during development contributes to dysfunctions of synaptic plasticity and neuropsychological disorders. Here we provide evidence for neogenin's function in regulation of the neocortical astrocyte differentiation during mouse brain development. We also provide evidence for the necessity of neogenin in BMP2/Smad1-induced astrocyte differentiation through YAP. Thus, our findings identify an unrecognized function of neogenin in mouse neocortical astrocyte differentiation, and suggest a signaling pathway, BMP2-neogenin-YAP-Smad1, underlying astrogliogenesis in developing mouse neocortex.
Design recovery of interactive graphical applications

Nowadays, the majority of productivity applications are interactive and graphical in nature. In this paper, we explore the possibility of taking advantage of these two characteristics in a design recovery tool. Specifically, the fact that an application is interactive means that we can identify distinct execution bursts corresponding closely to "actions" performed by the user The fact that the application is graphical means that we can describe those actions visually from a fragment of the application display itself. Combining these two ideas, we obtain an explicit mapping from high-level actions performed by a user (similar to use case scenarios/specification fragments) to their low-level implementation. This mapping can be used for design recovery of interactive graphical applications. We demonstrate our approach using L/sub Y/X, a scientific word processor.
Titanium alloy corrosion in nuclear waste environments. [Ti-50A; TiCode 12; Ti-Pd]

A corrosion study has been conducted on the titanium alloys Ti-50A, TiCode 12, and Ti-Pd to evaluate their suitability as a long lifetime (300 to 600 year) canister material for the isolation of nuclear wastes. TiCode 12, selected as the primary candidate material, is shown to be very resistant to environmental attack. Results of electrochemical, general corrosion, and stress corrosion cracking experiments are presented. These data, including those from severe overtests, have shown that TiCode 12 is a viable candidate material for long-term waste isolation. 17 figures.
Fading relay channels: performance limits and space-time signal design

Cooperative diversity is a transmission technique, where multiple terminals pool their resources to form a virtual antenna array that realizes spatial diversity gain in a distributed fashion. In this paper, we examine the basic building block of cooperative diversity systems, a simple fading relay channel where the source, destination, and relay terminals are each equipped with single antenna transceivers. We consider three different time-division multiple-access-based cooperative protocols that vary the degree of broadcasting and receive collision. The relay terminal operates in either the amplify-and-forward (AF) or decode-and-forward (DF) modes. For each protocol, we study the ergodic and outage capacity behavior (assuming Gaussian code books) under the AF and DF modes of relaying. We analyze the spatial diversity performance of the various protocols and find that full spatial diversity (second-order in this case) is achieved by certain protocols provided that appropriate power control is employed. Our analysis unifies previous results reported in the literature and establishes the superiority (both from a capacity, as well as a diversity point-of-view) of a new protocol proposed in this paper. The second part of the paper is devoted to (distributed) space-time code design for fading relay channels operating in the AF mode. We show that the corresponding code design criteria consist of the traditional rank and determinant criteria for the case of colocated antennas, as well as appropriate power control rules. Consequently space-time codes designed for the case of colocated multiantenna channels can be used to realize cooperative diversity provided that appropriate power control is employed.
Demography and Population Projection of Aphis fabae (Hemiptera: Aphididae): with Additional Comments on Life Table Research Criteria

ABSTRACT We collected developmental, survival, and reproduction data for Aphis fabae Scopoli (Hemiptera: Aphididae) reared on faba bean, Vicia faba L. ‘Sevilla’ at four constant temperatures (15, 20, 25, and 30°C), 70% relative humidity, and a photoperiod of 16:8 (L:D) h. The highest intrinsic rate of increase (r = 0.4347 d-1) and finite rate (&lgr; = 1.5445 d-1) were observed at 25°C. The population projection based on the age-stage, two-sex life table quantitatively revealed the growth potential and stage structure of the aphid. We have included the following suggestions to aid researchers in life table studies: 1) The bootstrap method should be used to estimate the variance and SEs of developmental time, survival rate, fecundity, and population parameters. 2) The required number of bootstraps is dependent on the life table data—the higher the variation among individuals, the higher the number of bootstraps should be. In most cases, we suggest that 100,000 bootstraps should be used to obtain a stable estimate of variance and SEs. 3) Computer projection based on the age-stage, two-sex life table should be used to reveal the stage structure during population growth. 4) We used a simple equation based on the total fecundity, survival rate to adult stage, and first reproductive age to detect possible errors in life table parameters. 5) To assist readers in comprehending results, life table studies should include the cohort size, preadult survival rate, number of emerged female adults, mean fecundity, survival and fecundity curves, and population parameters.
Transcriptional Regulation Is Affected by Subnuclear Targeting of Reporter Plasmids to PML Nuclear Bodies

ABSTRACT Whereas the PML protein has been reported to have both transcriptional coactivator and corepressor potential, the contribution of the PML nuclear body (PML NB) itself to transcriptional regulation is not well understood. Here we demonstrate that plasmid DNA artificially tethered to PML or the PML NB-targeting domain of Sp100 is preferentially localized to PML NBs. Using the tethering technique, we targeted a simian virus 40 promoter-driven luciferase reporter plasmid to PML NBs, resulting in the repression of the transgene transcriptional activity. Conversely, the tethering of a cytomegalovirus promoter-containing reporter plasmid resulted in activation. Targeting a minimal eukaryotic promoter did not affect its activity. The expression of targeted promoters could be modulated by altering the cellular concentration of PML NB components, including Sp100 and isoforms of the PML protein. Finally, we demonstrate that ICP0, the promiscuous herpes simplex virus transactivator, increases the level of transcriptional activation of plasmid DNA tethered to the PML NB. We conclude that when PML NB components are artificially tethered to reporter plasmids, the PML NB contributes to the regulation of the tethered DNA in a promoter-dependent manner. Our findings demonstrate that transient transcription assays are sensitive to the subnuclear localization of the transgene plasmid.
A Data Management Layer for Visual Information Retrieval

This case study describes the data management layer of the VizIR visual information retrieval project. VizIR is an open source framework of software tools for visual retrieval research. In content-based multimedia retrieval media objects are described by high-dimensional feature vectors. These feature vectors have to be stored in an efficient way in order to accelerate the retrieval process. VizIR database management is based on object-oriented persistence management. The database interface has a three tier architecture: a pattern-based persistence system hides the underlying database, an object-relational mapping system maps classes to entities and a relational database provides state-of-the-art database features (transactions, integrity, recovery, etc.). The described database management prototype can be downloaded from the VizIR project website.
Spectral–Spatial Sparse Subspace Clustering for Hyperspectral Remote Sensing Images

Clustering for hyperspectral images (HSIs) is a very challenging task due to its inherent complexity. In this paper, we propose a novel spectral-spatial sparse subspace clustering S4C algorithm for hyperspectral remote sensing images. First, by treating each kind of land-cover class as a subspace, we introduce the sparse subspace clustering (SSC) algorithm to HSIs. Then, considering the spectral and spatial properties of HSIs, the high spectral correlation and rich spatial information of the HSIs are taken into consideration in the SSC model to obtain a more accurate coefficient matrix, which is used to build the adjacent matrix. Finally, spectral clustering is applied to the adjacent matrix to obtain the final clustering result. Several experiments were conducted to illustrate the performance of the proposed S4C algorithm.
Jute fiber reinforced chemically functionalized polypropylene self-compatibilizing composites by Palsule process

Jute fiber reinforced chemically functionalized polypropylene composites with in situ fiber/matrix interfacial adhesion have been developed by Palsule process. A chemically functionalized maleic anhydride-grafted polypropylene acts as self-compatibilizing matrix eliminating requirements of compatibilizers or any fiber treatment. In situ fiber/matrix interfacial adhesion in the composites, imparted by Palsule process, has been established by field emission scanning electron micrograph and Fourier transform infrared spectroscopy. Mechanical properties of the jute fiber reinforced chemically functionalized polypropylene composites are higher than those of the chemically functionalized polypropylene matrix and increase with increasing amounts of jute fibers in the composite compositions. Measured tensile modulus of jute fiber reinforced chemically functionalized polypropylene composites has been compared with values predicted by rule of mixtures, Hirsch’s model, Halpin–Tsai equations, Nielsen equation, and Palsule equation.
Fast searching on compressed text allowing errors

We present a fast compression and decompression scheme for natural language texts that allows efficient and flexible string matching by searching the compressed text directly. The compression scheme uses a word-based Huffman encoding and the coding alphabet is byte-oriented rather than bit-oriented. We compress typical English texts to about 30% of their original size, against 40% and 35% for Compress and Gaip, respectively. Compression times are close to the times of Compress and approximately half the times of Gzip, and decompression times are lower than those of Gzip and one third of those of Compress. The searching algorithm allows a large number of variations of the exact and approximate compressed string matching problem, such as phrases, ranges, complements, wild cards and arbitrary regular expressions. Separators and stopwords can be discarded at search time without significantly increasing the cost. The algorithm is based on a word-oriented shift-or algorithm and a fast Boyer-Moore-type filter. It concomitantly uses the vocabulary of the text available as part of the Huffman coding data. When searching for simple patterns, our experiments show that running our algorithm on a compressed text is twice as fast as running Agrep on the uncompressed version of the same text. When searching complex or approximate patterns, our algorithm is up to 8 times faster than Agrep. We also mention the impact of our technique in inverted files pointing to documents or logical blocks as Glimpse.