Miracle-dz/UniFAR-FTUs huggingface dataset:
Design and Fabrication of a Dual-Polarization Waveguide Slot Array Antenna With High Isolation and High Antenna Efficiency for the 60 GHz Band

We propose a slot array antenna for dual-polarization operation in the 60 GHz band. To realize the dual-polarization, cross-shaped radiating slots and a multilayer feeding structure are employed. A 16 × 16-element array is fabricated by diffusion bonding of laminated thin copper plates, which has the advantages of high precision and low loss characteristics. To suppress the grating lobes, we employ several design techniques, such as a thick cavity structure and dense element spacing. The high antenna gain higher than 32.0 dBi and the antenna efficiency near 80.0% are obtained over 60.0-64.0 GHz for two different polarizations. The 1-dB-down gain bandwidths reach 10.4% and 10.9%. High isolation above 50 dB is achieved between the two input ports.
Nutritional Stress of Cultured Vero Cells Causes Altered Growth and Morphology as Seen in Neoplastic Transformation

In this report, the authors describe the effects of stressed culture conditions on Vero cells, which are a form of epithelial cells derived from the African green monkey kidney. This project was designed in large part to replicate a previously published report on the effects of nutritional stress on the growth patterns of these cells. Culture conditions that include nutritional limitation and cell crowding have been shown to transform these cells into cells that differ morphologically, develop into spheroid-shaped clusters, as well as exhibit altered protein expression. It was suggested that these changes might mirror those occurring in metastatic cancer cells, and could therefore provide a useful experimental model system. In the current study, the investigators successfully cultured Vero cells in control cultures, and then compared their growth patterns and morphology to cells grown in nutritionally stressed and overcrowded cell culture conditions defined by extensive days in culture in unchanged media which did or did not contain glucose. The results confirmed that nutritionally stressed and over-crowded cultures result in cells that change morphologically, detach from the substrate, and exhibit spheroid-shaped clusters of cells. Sub-culturing these detached cells demonstrated that the results were permanent, meaning that the new growth patterns and clustering persisted. The results suggest that deprivation of nutrition and other factors essential to life may facilitate aberrant growth.
A new approach for sea target detection in satellite based passive radar

This paper discusses the problem of sea target detection in satellite based passive radars. This problem is the consequent of two main factors. The first factor, which is common in all passive radars, is that the transmitter is not under the control of radar designer and its ambiguity function is usually undesirable for radar use, therefore the target is masked by the leakage of reference signal, clutter, and stronger targets. The second and more important problem in sea target detection is that the sea targets cannot be extracted from clutter in Doppler domain due to their close velocity. To overcome these problems, an LS based algorithm is proposed in this paper. In the proposed algorithm the reference signal leakage is attenuated by ECA algorithm, then using a least squares algorithm and a two dimensional cell averaging CFAR, the targets are extracted. Simulation results show that the approach is more effective in compared with the ambiguity function based algorithms in terms of accuracy and resolution.
Anchor Movement Strategy for Conjecture Geometry Based Localization Scheme in Wireless Sensor Network

Abstract —Localization of sensor node with least error is one of the major concern in wireless sensor network as some of the application require sensor node to know their location with high degree of precision. For mobile anchor based localization many of the path planning schemes already developed which includes scan, double scan, Circles & S- Curves. These path planning schemes have some limitations like localization error, Number of sensor nodes covered in the network, Trajectory length of mobile anchor node. This paper represents anchor movement strategy which is based on Scan path, with modifications are made in such a way that it satisfies the requirements of localization scheme. This movement strategy ensures that trajectory of mobile anchor node will minimize localization error and also will cover majority of sensor node in the environment. The localization error yielded by Modified Scan algorithm is in the range of 0.2 to 0.4m which is quite lower than the other existing mentioned path planning strategies producing localization error in the range 0.6 to 1.8m Keywords—Localization; Mobile anchor node; Wireless sensor network; Modified Scan algorithm Full Text: PDF DOI: http://dx.doi. org/10.11591/ijra.v5i4. 4166
Spatial Compressive Sensing for Strain Data Reconstruction from Sparse Sensors

Abstract : Compressed sensing, also known as compressive sensing, is a technique for finding sparse solutions to underdetermined linear systems. In signal processing, compressed sensing is the process of acquiring and reconstructing a signal that is known to be sparse or compressible. The theory asserts that certain signals or images can be recovered from what was previously thought to be highly incomplete measurements. This report reviews this rapidly growing field and its application in structural health monitoring. The report also presents a theoretical problem of constructing the full-field strain similar to that traditionally obtained from digital image correlation using very few samples of discrete strain measurements.
Hybrid Model of WT and ANFIS and Its Application on Time Series Prediction of Ship Roll Motion

Based on the multi time and frequency scale and the nonlinear character of ship roll motion, a hybrid model prediction approach combining wavelet transform (WT) and adaptive neuro-fuzzy inference system (ANFIS) is proposed in this paper. By using multi-resolution nalysis (MRA) of WT, multilevel 1-D wavelet decompositions of roll motion are completed to obtain simple and regular period signals. Then the multiple-input/single-output (MISO) ANFIS model is employed as prediction model for the main decomposed signals above. Finally, a prediction result is given through linear combination. The simulation experiments demonstrate the proposed method can effectively reduce the prediction difficulty and obtain better prediction precision. This method can also be used in ship pitch and heave motion prediction
Thrombospondin‐1 promotes cellular adherence of Gram‐positive pathogens via recognition of peptidoglycan

Thrombospondin‐1 (TSP1) is a matri‐cellular glycoprotein that has key roles in interactions between human cells and components of the extracellular matrix. Here we report a novel role for the lectin TSP1 in pathogen‐host interactions. Binding assays and flow cytometric analysis demonstrate that Streptococcus pneumoniae and other Gram‐positive pathogens including S. pyogenes, Staphylococcus aureus, and Listeria monocytogenes interact specifically with human TSP1. We also show for the first time that host cell‐bound TSP1 promotes adherence of Gram‐positive pathogens to human epithelial and endothelial cell lines. Pretreat‐ment of bacteria with sodium periodate but not Pronase E substantially reduced TSP1‐mediated bacterial adherence to host cells, suggesting that a glycoconju‐gate on the bacterial cell surface functions as the receptor for TSP1. Lipoteichoic acids did not affect TSP1‐mediated adherence of S. pneumoniae to host cells. In contrast, attachment of S. pneumoniae and other Gram‐positive pathogens to host cells via TSP1 was blocked by soluble peptidoglycan, indicating recognition of bacterial peptidoglycan by TSP1. In conclusion, our results demonstrate that recognition of Grampositive pathogens by TSP1 promotes bacterial colonization of host tissue cells. In this scenario, pep‐tidoglycan functions as adhesin and TSP1 acts as a molecular bridge linking Gram‐positive bacteria with receptors on the host cell. —Rennemeier, C. , Hammerschmidt, S. , Niemann, S. , Inamura, S. , Zähringer, U. , Kehrel, B. E. Thrombospondin‐1 promotes cellular adherence of Gram‐positive pathogens via recognition of peptidoglycan. FASEB J. 21, 3118–3132 (2007)
Two new modern records of the southern oyster drill Stramonita haemastoma floridana (Conrad, 1837) in Chesapeake Bay, USA

\A\e southern oyster drills, Stranionita haemastoma floridana (Conrad, 1837), have been collected from two Chesapeake Bay western shore tributaries. Four specimens were collected between Brown Shoal and Thomas Rock in the lower James River in February 2005. Thirteen live southern oyster drills were collected from Back Biver in April 2006. Identification of these drills as Stramonita haemastoma floridana has been confirmed using DNA bar-coding data. Southern oyster drills collected in Chesapeake Bay are genetically nearly identical to populations from the Atlantic coast, and differ significantly from populations from the Azores and from the Gulf of Mexico. These collections mark the first reported records of live southern oyster drills from within the Chesapeake Bay estuar)'. It is unknown if these drills represent isolated introductions or expansions of the northern range this species. Water temperature patterns in Chesapeake Bay and the Mid-Atlantic Bight from 1990-2005 are similar to those obser\'ed in the late 1950s when Stramonita haemastoma floridana was first found living in Chincoteague Bay, Maryland.
Mechanism of ECG changes and arrhythmogenic properties of low osmolality contrast media during coronary arteriography in dog.

STUDY OBJECTIVE The aim of the study was to investigate the mechanisms behind ECG changes and ventricular arrhythmias during coronary arteriography. DESIGN Transmembrane action potentials were recorded from isolated heart muscle preparations superfused with contrast media. Conductivity of plasma diluted with contrast media was determined in vitro. Epicardial ECG recordings were made during coronary arteriography. SUBJECTS Epicardial ECG recordings were made in eight mongrel dogs of either sex, weight 14-22 kg. Atrial appendages were excised from the same dogs and used for heart muscle preparation studies. MEASUREMENTS AND MAIN RESULTS Iohexol and ioxaglate affected the action potentials similarly: resting potential, amplitude, rate of depolarisation, and action potential duration increased; effective refractory period decreased. Both contrast media reduced plasma conductivity. During coronary arteriography both media increased R wave amplitude, depressed ST segment, and prolonged QT time on epicardial ECG. CONCLUSIONS ST segment deviation on ECG reflects hyperpolarization and increased amplitude of action potential rather than depolarisation consistent with ischaemia. Increased rate of depolarisation and amplitude of action potential together with reduced conductivity after contrast media may explain increased amplitude of QRS voltage on ECG. Observed regional changes in depolarisation, repolarisation, and refractoriness may be important in the genesis of ventricular arrhythmias.
An Energy-Based Control Strategy for Battery Energy Storage Systems: A Case Study on Microgrid Applications

Battery energy storage systems (BESSs) with proportional-integral (PI) control methods have been widely studied in microgrids (MGs). However, the performance of PI control methods might be unsatisfactory for BESSs due to the nonlinear characteristics of the system. To overcome this problem, an energy-based (EB) control method is applied to control the converter of a BESS in this study. The EB method is a robust nonlinear control method based on passivity theory with good performance in both transient and steady states. The detailed design process of the EB method in the BESS by adopting an interconnection and damping assignment (IDA) strategy is described. The design process comprises three steps: the construction of the port-controlled Hamiltonian model, the determination of the equilibrium point and the solution of the undetermined matrix. In addition, integral action is combined to eliminate the steady state error generated by the model mismatch. To establish the correctness and validity of the proposed method, we implement several case simulation studies based on a test MG system and compare the control performance of the EB and PI methods carefully. The case simulation results demonstrate that the EB method has better tracking and anti-disturbance performance compared with the classic PI method. Moreover, the proposed EB method shows stronger robustness to the uncertainty of system parameters.
Lymphocyte cytochrome P450 expression: inducibility studies in male Wistar rats

Abstract The cytochrome P450 system plays a key role in the metabolism of endogenous and exogenous compounds. The system is distributed widely in body tissues, with the highest concentration of the enzymes found in liver hepatocytes. Extrahepatic expression of the P450 system has been documented in the lung, pancreas and kidney, and the enzymes are induced by many disease states, including diabetes mellitus and cancer. Little attention has been paid to the expression and inducibility of the system in peripheral blood lymphocytes. In this study, specific P450 inducers are administered in vivo to male Wistar rats. The expression and in vivo induction of the P450 isoforms CYP2B, CYP2E, CYP3A and CYP4A in liver and lymphocyte samples is determined using Western blot analysis. Following in vivo induction, the lymphocyte P450 proteins showed an average three-fold increase in expression (0.003–0.005 µg P450/µg microsomal protein), compared to the control lymphocyte samples. Expression in the induced lymphocyte samples was up to 11-fold lower than that in the induced liver samples, as expected. These results indicate that lymphocytes may provide a relatively simple method by which to monitor the P450 profile in human subjects.
Kin circle: Social messaging system for mediated familial bonding: Designing from the lens of interaction ritual chains theory

This paper presents the design of a new social messaging app for family connection called Kin Circle. From the lens of Interaction Ritual Chains Theory, we argue that interactions among family members through social messaging groups can be seen as successful rituals, which give rise to more rituals that strengthen familial bond. Our previous study of WhatsApp usage among extended family members shows that this bonding-ritual cycle is sustained through the efforts of kin-keepers. Based on our understanding of mediated familial communication as rituals, Kin Circle is designed to heighten the awareness of the boundaries that defined family solidarity, to support kin-keepers role, and catalyse the creation of new rituals for the family. In this paper, we demonstrate novel design features of Kin Circle prototype, namely family home metaphor, virtual kin-keeper, and events function. In the future, we plan to deploy Kin-Circle and observe its use.
Homomorphic Filtered Spectral Peaks Energy for Automatic Detection of Vowel Onset Point in Continuous Speech

SUMMARY During the production of speech signals, the vowel on-set point is an important event containing important information for many speech processing tasks, such as consonant-vowel unit recognition and speech end-points detection. In order to realize accurate automatic detection of vowel onset points, this paper proposes a reliable method using the energy characteristics of homomorphic ﬁltered spectral peaks. The homomorphic ﬁltering helps to separate the slowly varying vocal tract system characteristics from the rapidly ﬂuctuating excitation characteristics in the cepstral domain. The distinct vocal tract shape related to vowels is obtained and the peaks in the estimated vocal tract spectrum provide accurate and stable information for VOP detection. Performance of the proposed method is compared with the existing method which uses the combination of evidence from the excitation source, spectral peaks, and modulation spectrum energies. The detection rate with di ﬀ erent time resolutions, together with the missing rate and spurious rate, are used for comprehensive evaluation of the performance on continuous speech taken from the TIMIT database. The detection accuracy of the proposed method is 74.14% for ± 10ms resolution and it increases to 96.33% for ± 40ms resolution with 3.67% missing error and 4.14% spurious error, much better than the results obtained by the combined approach at each speciﬁed time resolution, especially the higher resolutions of ± 10 ∼ ± 30ms. In the cases of speech corrupted by white noise, pink noise and f-16 noise, the proposed method also shows signiﬁcant improvement in the performance compared with the existing method.
Inflammatory cytokine and nitric oxide responses in pediatric sepsis and organ failure.

OBJECTIVE To examine the relationship of circulating proinflammatory and anti-inflammatory cytokine concentrations to nitric oxide and organ failure in pediatric sepsis. DESIGN Prospective study. SETTING Pediatric intensive care unit (ICU), children's Hospital of Pittsburgh, University of Pittsburgh. PATIENTS Nineteen patients with a diagnosis of sepsis admitted to the pediatric ICU. Twelve uninfected critically iII patients served as controls. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Plasma interleukin (IL)-10, IL-6, and nitrite/nitrate concentrations were measured and compared with an index of organ failure daily for 3 days after presentation with the sepsis syndrome. Children with increased plasma IL-6 concentrations (n = 6) had increased plasma nitrite/nitrate concentrations (p < 0.01 on each day), increased organ failure scores (p < .05 on days 1 and 3), and the highest plasma IL-10 concentrations (p < .05 on days 1 and 3, p = .054 on day 2) when compared with children with sepsis and undetectable IL-6 concentrations. Children with sepsis and detectable IL-6 concentrations, and children with undetectable IL-6 concentrations, both had increased nitrite/nitrate concentrations (p < .005 on days 1 through 3) and increased IL-10 concentrations (p < .05 on days 1 and 2) compared with controls. Children with increased IL-6 concentrations had higher organ failure on each day (p < .01), and children with undetectable IL-6 concentrations had higher organ failure on days 1 and 2 only (p < .005) when compared with controls. Organ failure improved over time in the children with undetectable IL-6 concentrations (p < .005). CONCLUSIONS Increased plasma nitrite/nitrates and increased organ failure scores occurred in the children with sepsis who had an exaggerated proinflammatory state, despite a pronounced anti-inflammatory response. When the anti-inflammatory response predominated and the proinflammatory state was dampened, organ failure status improved.
4D (3D Dynamic) statistical models of conversational expressions and the synthesis of highly-realistic 4D facial expression sequences

In this thesis, a novel approach for modelling 4D (3D Dynamic) conversational interactions and synthesising highly-realistic expression sequences is described. To achieve these goals, a fully-automatic, fast, and robust pre-processing pipeline was developed, along with an approach for tracking and inter-subject registering 3D sequences (4D data). A method for modelling and representing sequences as single entities is also introduced. These sequences can be manipulated and used for synthesising new expression sequences. Classification experiments and perceptual studies were performed to validate the methods and models developed in this work. To achieve the goals described above, a 4D database of natural, synced, dyadic conversations was captured. This database is the first of its kind in the world. Another contribution of this thesis is the development of a novel method for modelling conversational interactions. Our approach takes into account the time-sequential nature of the interactions, and encompasses the characteristics of each expression in an interaction, as well as information about the interaction itself. Classification experiments were performed to evaluate the quality of our tracking, inter-subject registration, and modelling methods. To evaluate our ability to model, manipulate, and synthesise new expression sequences, we conducted perceptual experiments. For these perceptual studies, we manipulated modelled sequences by modifying their amplitudes, and had human observers evaluate the level of expression realism and image quality. To evaluate our coupled modelling approach for conversational facial expression interactions, we performed a classification experiment that differentiated predicted frontchannel and backchannel sequences, using the original sequences in the training set. We also used the predicted backchannel sequences in a perceptual study in which human observers rated the level of similarity of the predicted and original sequences. The results of these experiments help support our methods and our claim of our ability to produce 4D, highly-realistic expression sequences that compete with state-of-the-art methods.
Power loss analysis in thermal design of electrical machines

This paper reviews recent developments in power loss analysis applicable, but not limited to, the thermal design of electrical machines. Accurate and computationally efficient loss prediction is an essential element in thermal analysis of electrical machines, and has become an increasingly important part of the machine design-development process. The continuous drive towards `more electric' technologies has resulted in a need for a more comprehensive and detailed design approach, where various multi-physics and multidisciplinary effects are accounted for. This `design for application' methodology relies strongly on the advancements and evolution of the existing theoretical and experimental design techniques to satisfy the evermore-demanding machine design requirements. The thermal behaviour and efficiency of the power conversion are the machine performance measures, which are the essential elements of the `design for application' approach. An overview of the challenges and limitations regarding the power loss analysis in the context of thermal design of electrical machines is provided in the paper. All of the major loss components associated with the active parts of the machine assembly are discussed.
Clomipramine HCL — A Double-Blind Study of a New Antidepressant Drug

A double-blind study was carried out comparing the antidepressant and anxiolytic properties of clomipramine HCL (a new antidepressant) and imipramine on a group of 24 subjects suffering from psychotic depression. The patients were divided into two groups of twelve by random sampling. Clinical assessments were made by two independent psychiatrists using the Hamilton Depression Scale and the Beck Depression Inventory, and also by a psychologist using the Welsh Anxiety Index of the MMPI and IPAT scales. The assessments were carried out one day prior to treatment and on the 5th, 10th, 15th, 22nd and 44th day after treatment commenced. Clomipramine HCL was found to be as effective as imipramine in the treatment of depression, and it also showed similar anxiolytic properties. There were no significant changes in the laboratory tests carried out before and after the treatment program was completed in both treatment groups.