gebhart/patrepeval huggingface dataset:
A 16.2 Gbps 60 GHz SiGe transmitter for outdoor wireless links (2016)

A fully integrated 60 GHz transmitter in 130 nm BiCMOS SiGe technology for outdoor applications is presented. The transmitter covers the entire 57-66 GHz band supporting a record data rate of 16.2 Gbps at 6 dBm output power, 512 QAM with an EVM of -34 dB. The single ended saturated power, OP1dB, and OIP3 are above 18 dBm, 16 dBm and 23 dBm respectively. The transmitter meets the most stringent ETSI emission mask for point-to-point communication at class6LB, 500 MHz bandwidth with an output noise floor below -133 dBm/Hz. The area of the transmitter is 15 mm2 and it consumes 1.2 W.
Involvement of Extracellular Vesicles in Vascular-Related Functions in Cancer Progression and Metastasis (2019)

The primary cause of mortality among patients with cancer is the progression of the tumor, better known as cancer invasion and metastasis. Cancer progression involves a series of biologically important steps in which the cross-talk between cancer cells and the cells in the surrounding environment is positioned as an important issue. Notably, angiogenesis is a key tumorigenic phenomenon for cancer progression. Cancer-related extracellular vesicles (EVs) commonly contribute to the modulation of a microenvironment favorable to cancer cells through their function of cell-to-cell communication. Vascular-related cells such as endothelial cells (ECs) and platelets activated by cancer cells and cancer-derived EVs develop procoagulant and proinflammatory statuses, which help excite the tumor environment, and play major roles in tumor progression, including in tumor extravasation, tumor cell microthrombi formation, platelet aggregation, and metastasis. In particular, cancer-derived EVs influence ECs, which then play multiple roles such as contributing to tumor angiogenesis, loss of endothelial vascular barrier by binding to ECs, and the subsequent endothelial-to-mesenchymal transition, i.e., extracellular matrix remodeling. Thus, cell-to-cell communication between cancer cells and ECs via EVs may be an important target for controlling cancer progression. This review describes the current knowledge regarding the involvement of EVs, especially exosomes derived from cancer cells, in EC-related cancer progression.
Small form-factor ultraviolet laser source (2012)

A very small form-factor ultraviolet (UV) light source is being developed for military and industrial applications. A miniature UV laser source using multi-wavelength Quasi-Phase- Matched QPM technique utilizing optical non-linear crystals such as Lithium Niobate (LN), Lithium Tantalate (LT), and Magnesium Oxide doped LN and LT (MgO:LN and MgO:LT), KTP crystals is being developed as a part of solution to meet small form-factor. The UV source consists of thermo-electric cooler, heat-sink carrier on which two focusing lens-arrays, array of non-linear crystals are mounted. The light source used for this purpose is 808 nm which generates 1064 nm light after passing through the Nd:YVO4 crystal. The 1064 nm light enters through lens to make incident on to a PPLT or PPLN crystal generating the third harmonic generation output of 355 nm. Simulations show how an average power of 1.0 Watt with a small form factor is achieved. Simulation modeling demonstrates that the third harmonic grating for PPLN devices allowing an overall prediction of expected output efficiency. Simulations show the affect of process variation, excitation frequency variation, and temperature affects power output.
Achieving physical layer security with massive MIMO beamforming (2017)

Physical layer security allows secure communications between a source and destination without the need to resort to key-based encryption techniques. Its increasing importance stems from the difficulty of implementing advanced encryption techniques in certain networks, such as the internet of things (IoT). In this paper, physical layer security is implemented by using massive multiple input multiple output (MIMO) techniques. Specifically, beamforming with large cylindrical antenna arrays is investigated. These arrays allow the transmission of both the useful signal to the destination and the jamming signal to the eavesdropper without resorting to the help of other nodes for relaying the signal and/or jamming the eavesdropper. Simulation results show that high levels of secrecy capacity can be achieved with the proposed approach.
Metallic bismuth on strontium-bismuth tantalate thin films for ferroelectric memory application (2000)

Strontium–bismuth tantalate (SBT) has been actively investigated as an attractive candidate for non-volatile ferroelectric random access memories because of its high resistance to fatigue. However, the ferroelectric property of SBT is easily affected by fabrication process parameters. The relationship between the surface chemistry of SBT thin films and the fabrication process parameters, such as crystallization temperature, upper Pt electrode, annealing in oxygen after Pt electrode fabrication (= the second annealing), hydrogen sintering and ion etching, were examined mainly by XPS analysis. In all specimens, metallic Bi, which is one of the main causes for deterioration of their performances, was observed in addition to oxidic Bi, Sr and Ta. The deposition of an upper Pt electrode resulted exclusively in an increase in metallic Bi content. Sintering in a hydrogen atmosphere and ion etching increased the ratio of metallic Bi to total Bi. The second annealing was effective in suppressing the metallic Bi content. Copyright © 2000 John Wiley & Sons, Ltd.
Exploiting shared information for multi-intent natural language sentence classification (2013)

Multi-intent natural language sentence classification aims at identifying multiple user goals in a single natural language sentence (e.g., “find Beyonce’s movie and music” ! find movie, find music). The main motivation of this work is to exploit the shared intents across different intent combinations rather than treating the combination as an atomic label. We propose to achieve this by (1) adding class features, and (2) adding hidden variables to identify segments belonging to each intent. Experimental results demonstrate significant gains in classification accuracy over the baseline methods across a number of training conditions (3%-8% absolute on multi-intent sentences, 2%-3% absolute on single intent sentences).
Bioceramic Drug Delivery System for Cancer Treatment and Regenerative Medicine (2016)

Silica-calcium-phosphate composite (SCPC) is a drug delivery platform that has successfully demonstrated the ability to bind and release several therapeutics including antibiotics, peptides, anticancer drugs, and growth factors. It has successfully demonstrated a unique capacity for bone regeneration. The present studies address the effect of the phosphate and silicate functional groups on drug binding and controlled release kinetics of Cisplatin (Cis). Moreover, the roles of ceramic composition and resorbability on rhBMP2 release kinetics and bone regeneration in a critical size calvarial defect in rabbit is presented.
Evaluation of Skin Damage from Accidental Removal of a Hemostatic Wound Clamp (The iTClamp) (2017)

Inadvertent, forcible removal of the iTClamp created essentially no skin damage seen when the wound clamp was forcibly removed from either cadaver or swine models in a variety of positions and directions. Thus, the risks of deployment in operational environments do not seem to be increased. Mckee JL , Lakshminarasimhan P , Atkinson I , LaPorta AJ , Kirkpatrick AW . Evaluation of skin damage from accidental removal of a hemostatic wound clamp (the iTClamp). Prehosp Disaster Med. 2017;32(6):651-656.
Industrial‐scale fabrication of an osteogenic and antibacterial PLA/silver‐loaded calcium phosphate composite with significantly reduced cytotoxicity (2018)

In this study, we report an industrial-scale fabrication method of a multifunctional polymer composite as a scaffold material for bone tissue engineering. This study successfully demonstrated the potential of applying industrial polymer processing technologies to produce specially functionalized tissue engineering scaffolds. With the inclusion of a newly synthesized multifunctional additive, silver-doped-calcium phosphate (silver-CaP), the composite material exhibited excellent osteogenic inducibility of human adipose-derived stem cells (hASC) and satisfactory antibacterial efficacy against Escherichia coli and Staphylococcus aureus. Also, relative to previously reported methods of direct loading silver particles into polymeric materials, our composite exhibited significantly reduced silver associated cytotoxicity. The enhanced biocompatibility could be a significant advantage for materials to be used for regenerative medicine applications where clinical safety is a major consideration. The impact of different silver loading methodologies on hASC' osteogenic differentiation was also studied. Overall, the results of this study indicate a promising alternative approach to produce multifunctional scaffolds at industrial-scale with higher throughput, lower cost, and enhanced reproducibility. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 900-910, 2019.
An Algorithm for Approximate Solutions to Weakly Filtered Synchronous Control Systems and Nonlinear Renewal Processes (1983)

A multi-time perturbation algorithm is derived to study certain synchronous control systems and nonlinear renewal processes. The new methods presented here study singular perturbation problems for nonlinear Volterra integro-differential equations whose kernels are close to the Dirac delta function. The algorithm provides useful approximate solutions to weakly filtered phase-locked loop circuits and to nonlinear renewal equations describing certain population dynamics.
A Novel Low-Complexity Numerical Localization Method for Dynamic Wireless Sensor Networks (2015)

The localization of distributed and wirelessly connected sensor system is of decisive importance for many applications. This paper focuses on the range-based localization and tracking problem for very large dynamic, i.e., moving sensor networks. We study the explorability of underwater systems with massive swarms of tiny sensors with reduced and restricted capabilities. In this context, we propose a least-squares based localization algorithm which shows superior performance and lower computational complexity than other methods, based, e.g., on unscented Kalman-filtering or semidefinite programming. The new and existing algorithms are evaluated using two different system models, derived from real fluid dynamics. We also compare our algorithm to other least-squares based methods, determine the computational overhead of the new method and investigate its performance gain in terms of estimation accuracy.
The Effect of the Echinocandin Analogue Caspofungin on Cell Wall Glucan Synthesis byCryptococcus neoformans (2000)

The echinocandin derivative caspofungin (MK-0991, L-743,872) inhibits 1,3-beta-d-glucan synthesis and is active against several medically important fungi but is relatively ineffective against Cryptococcus neoformans. To investigate the mechanism of C. neoformans resistance, the prevalence of 1,3- and 1,6-beta-d-glucan linkages was determined in cells grown with and without caspofungin, using affinity-purified antisera and gold particle immunoelectron microscopy. Cryptococcal strains ATCC 24067 (serotype D) and MY2061 (serotype A) were studied. Growth at 4 microg/mL of caspofungin reduced both glucan linkages in both strains. However, growth at 2 microg/mL resulted in reduced 1,6-beta-d-glucan linkage only for MY2061. Inhibition of 1,6-beta-d-glucan synthesis may be an additional mechanism of action for pneumocandins. The relatively low efficacy of caspofungin against C. neoformans may result from reduced activity against C. neoformans glucan synthase or from yet undiscovered mechanisms of action operative in other fungal pathogens but not in C. neoformans.
Femtosecond High Repetition Rate External Cavity Beyond The Average Power Limit for Linear Enhancement (2010)

We report on the cavity enhancement of a 78MHz, 200fs ytterbium-fiber laser system. Linear enhancement up to a record intra-cavity power of 18kW has been observed. In a non-linear enhancement regime 40kW have been reached.
Charge transport physics of organic and hybrid perovskite field effect transistors (Conference Presentation) (2022)

Field-effect transistors based on organic and hybrid metal halide perovskite semiconductors provide a controlled means of studying the charge transport physics of these materials and are also of interest for a broad range of applications in electronics, optoelectronics or bioelectronics. In this talk we will provide a general overview of the structure-property relationships that determine the charge transport physics and performance of hybrid perovskite FETs and we will also discuss our current understanding of the factors that govern and limit the operational stability of conjugated polymer FETs for applications in large area electronics.
SymPhone (2006)

VoIP is born from the growing Internet infrastructure, which has over the years seen significant improvements in both bandwidth and end-to-end latency. In this paper, we explore making VoIP available on a mobile phone. For that purpose, we propose an architecture and describe the various components involved. Data entering and leaving the mobile phone is encapsulated in a wireless Bluetooth connection. The bridge to the Internet is provided by a linux Bluetooth access point. The system is compatible with current VoIP standards using RTP and SIP for data and signaling transmission, respectively. It has been tested to work in combination with several known softphones. Both RTP and SIP stack are built on top of a special IP emulation layer on the mobile phone, which has been developed to facilitate the migration of the application onto devices having a direct IP binding available for Bluetooth such as BNEP (Bluetooth Network Encapsulation Protocol). Apart from presenting design and implementation details, the paper also provides measurement results with regard to delay and session setup time and discusses certain limitations of the application evolving from restrictions imposed by the mobile phone's programming platform.
Verknüpfung von Metallzentren durch linear verbrückende, π‐gebundene Liganden: p‐Phenylendiimidodimolybdän‐Komplexe (1988)

Komplexfragmente mit Metallzentren in hohen Oxidationsstufen können mit dem linear verbrückenden p ‐Phenylendiimido‐Liganden verknüpft werden. Dies demonstriert der Mo 1 , der sich aus [MoCl 4 (thf) 2 ] und p ‐Phenylendiazid herstellen läßt. 1 kann mehrstufig zu isolierbaren Mo ‐, Mo ‐ und Mo ‐Komplex interessiert im Hinblick auf die Synthese neuer leitfähiger Materialien. magnified image
Shear induced carboplatin binding within the cavity of a phospholipid mimic for increased anticancer efficacy (2015)

Vesicles 107 ± 19 nm in diameter, based on the self-assembly of tetra-para-phosphonomethyl calix[4]- arene bearing n-hexyl moieties attached to the phenolic oxygen centres, are effective in binding carboplatin within the cavity of the macrocycle under shear induced within a dynamic thin film in a continuous flow vortex fluidic device. Post shearing the vesicles maintain similar diameters and retain carboplatin within the cavity of the calixarene in a hierarchical structure, with their size and morphology investigated using DLS, TEM, SEM and AFM. Location of the carboplatin was confirmed using NMR, FTIR, ESI-MS and EFTEM, with molecular modelling favouring the polar groups of carboplatin hydrogen bonded to phosphonic acid moieties and the four member cyclobutane ring directed into the cavity of the calixarene. The loading efficiency and release profile of carboplatin was investigated using LC-TOF/MS, with the high loading of the drug achieved under shear and preferential released at pH 5.5, offering scope for anti-cancer drug delivery. The hierarchical structured vesicles increase the efficacy of carboplatin by 4.5 fold on ovarian cancer cells, lowered the IC50 concentration by 10 fold, and markedly increased the percent of cells in the S-phase (DNA replication) of the cell cycle.
Failure Predictions of Out-of-Autoclave Sandwich Joints with Delaminations under Flexure Loads (2015)

An analysis and a test program was conducted to investigate the damage tolerance of composite sandwich joints. The joints contained a single circular delamination between the face-sheet and the doubler. The coupons were fabricated through out-of-autoclave (OOA) processes, a technology NASA is investigating for joining large composite sections. The four-point bend flexure test was used to induce compression loading into the side of the joint where the delamination was placed. The compression side was chosen since it tends to be one of the most critical loads in launch vehicles. Autoclave cure was used to manufacture the composite sandwich sections, while the doubler was co-bonded onto the sandwich face-sheet using an OOA process after sandwich panels were cured. A building block approach was adopted to characterize the mechanical properties of the joint material, including the fracture toughness between the doubler and face-sheet. Twelve four-point-bend samples were tested, six in the sandwich core ribbon orientation and six in sandwich core cross-ribbon direction. Analysis predicted failure initiation and propagation at the pre-delaminated location, consistent with experimental observations. Fracture analyses methods predicted failure loads in close agreement with tests. This investigation demonstrated a strength reduction of 10 percent due to a flaw of significant size compared to the width of the sample. Therefore, concerns of bonding an OOA material to an in-autoclave material was mitigated for the geometries, materials, and load configurations considered.
Vibration Analysis of Engine Supported by Hydraulic Mounts (2003)

&lt;div class="htmlview paragraph"&gt;This paper describes a steady vibration of an engine supported by rubber and hydraulic mounts at a relatively low frequency range, assuming an engine is a rigid body. We identify dynamic characteristics of a hydraulic mount with respect to frequency and amplitude. The equation of motion is solved numerically by the Newton-Raphson method, treating the mount characteristics as functions of frequency and amplitude. The excitation test to simulate an engine shake and an idling vibration was performed using a mass block instead of an actual engine. During the engine shake, we observed that the amplitude dependency of hydraulic mounts strongly influences the vibration, while idling, we investigated rolling vibration especially for the case where the torque axis does not pass through the engine's center of gravity. The theoretical predictions agree closely with the experimental results in both engine shake and idling vibration tests. The influence of the orifice dimensions of the hydraulic mounts on the vibration was also studied, and we found that the current orifice dimensions are optimum in this system.&lt;/div&gt;
Reducing Line Edge Roughness in Si and SiN through plasma etch chemistry optimization for photonic waveguide applications (2017)

The LER and LWR of subtractively patterned Si and SiN waveguides was calculated after each step in the process. It was found for Si waveguides that adjusting the ratio of CF<sub>4</sub>:CHF<sub>3</sub> during the hard mask open step produced reductions in LER of 26 and 43% from the initial lithography for isolated waveguides patterned with partial and full etches, respectively. However for final LER values of 3.0 and 2.5 nm on fully etched Si waveguides, the corresponding optical loss measurements were indistinguishable. For SiN waveguides, introduction of C4H9F to the conventional CF<sub>4</sub>/CHF<sub>3</sub> measurement was able to reduce the mask height budget by a factor of 5, while reducing LER from the initial lithography by 26%.
PD-Loma: a cancer entity with a shared sensitivity to the PD-1/PD-L1 pathway blockade (2018)

Clinical trials have now identified over 30 cancer histotypes with sensitivity to anti-PD-(L)1 therapies. It is the first time in oncology that a class of drugs has demonstrated such a wide spectrum of activity in monotherapy. This subgroup of cancers ('PD-Lomas') is driving the clinical research strategies for the next generation of combination immunotherapy.
The influence of process and design of subcollectors on the ESD robustness of ESD structures and silicon germanium heterojunction bipolar transistors in a BiCMOS SiGe technology (2003)

This paper demonstrates the effect of process and design variations on the ESD robustness of both active and passive elements in 50, 120 and 200 GHz BiCMOS SiGe HBT processes. The influence of subcollector dopant type and concentration, and n-well on ESD robustness of SiGe HBT npn transistors, SiGe varactor structures, p/sup +//n-well/subcollector structures and n-well diode structures is shown. HBM and TLP ESD measurements are provided to evaluate the observation of lateral resistor ballasting in the subcollector region in these structures and its influence on ESD robustness.
Device for Detection of Explosives, Nuclear and Other Hazardous Materials in Luggage and Cargo Containers (2009)

Device for detection of explosives, radioactive and heavily shielded nuclear materials in luggage and cargo containers based on Nanosecond Neutron Analysis/Associated Particles Technique (NNA/APT) is under construction. Detection module consists of a small neutron generator with built‐in position‐sensitive detector of associated alpha‐particles, and several scintillator‐based gamma‐ray detectors. Explosives and other hazardous chemicals are detected by analyzing secondary high‐energy gamma‐rays from reactions of fast neutrons with materials inside a container. The same gamma‐ray detectors are used to detect unshielded radioactive and nuclear materials. An array of several neutron detectors is used to detect fast neutrons from induced fission of nuclear materials. Coincidence and timing analysis allows one to discriminate between fission neutrons and scattered probing neutrons. Mathematical modeling by MCNP5 and MCNP‐PoliMi codes was used to estimate the sensitivity of the device and its optimal configuration. Comparison of the features of three gamma detector types—based on BGO, NaI and LaBr3 crystals is presented.
A robust radio access technology classification scheme with practical considerations (2013)

This paper presents a robust radio access technology (RAT) classification framework for acquiring comprehensive knowledge on multiple types of coexisting wireless systems. It is built upon the combination of a group of RAT-specific feature metrics using maximum likelihood estimation (MIE) based decision rules. The classification scheme is enhanced by our proposed dimension cancellation (DIC) method for mitigating the noise uncertainty in practical receivers. Based on this framework, a signal classifier for TV white space (TVWS) is designed and implemented which is capable of detecting and classifying DVB-T, 3GPP LTE, IEEE 802.22, ECMA-392 and wireless microphone signals. The classifier is validated by both simulation and real-world experiment using a spectrum sensing testbed. The simulation and experiment performances agree with each other well, which confirms the effectiveness and robustness of the proposed classification scheme. The proposed classification framework will be further applied to our on-going projects kogLTE and ABSOLUTE in which the LTE network is enhanced with cognitive radio for operating in complex radio environment.
Non-freezing cold injury (2019)

> The term ‘ immersion foot ’ was coined during the present war ( World War II ) to describe a syndrome occurring in extremities exposed to the effects of cold sea water. It is a disorder characterized by chilling as opposed to freezing of tissues and is distinct from frost-bite. The term is