gebhart/patrepeval huggingface dataset:
Price Theory and Merger Guidelines, II (2011)

Our work extends existing first-order approaches to merger analysis to provide quantitative estimates of price and consumer surplus changes. Sonia Jaffe & E. Glen Weyl (Harvard Univ.)
Current Measurement System for Ocean Engineering (1976)

A deep ocean current measurement system is being developed to meet the present and future environmental data requirements for ocean engineering design and construction. This development is being supported by the Naval Facilities Engineering Command, the Naval Oceanographic Office, and the Director of Navy Laboratories. The specific system goal is for 95% probability of full data recovery after one-year implant. The speed accuracy will range from <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\pm 0.1</tex> cm/sec at the threshold of 0.1 cm/sec to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\pm 1</tex> cm/sec at 51 cm/sec; from 50 cm/sec to 150 cm/sec the accuracy will be <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\pm 8</tex> %. The direction accuracy will be <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\pm 5\deg</tex> magnetic from 0 to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">360\deg</tex> . The sensor will also measure water temperature to <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\pm 0.05\deg</tex> C. The system will be a single-point mooring with a predeployment packaging configuration of a Mark 45 torpedo. The system will be deployed and recovered by aircraft with an implant duration of one year in 6100 m of water. The in-line current sensor exploits the principles of hot film anemometry for measurement of both current speed and direction. The problem of contamination is addressed by a combination of antifouling coating, sonic cleaning, and in-situ calibration. Although this paper describes the entire system, it emphasizes both theoretical and experimental work with the sensor. To date, all developmental efforts have been in the sensor area and sensor-related areas.
Development of Coiled-Tubing-Conveyed Thru-Tubing Inflatable Selective Stimulation Tool (1993)

ABSTRACT Within the past year, an inflatable Thru-Tubing Selective Stimulation Tool (SST) has been successfully field tested, and has proven to be a valuable alternative to a conventional rig workover stimulation method. Use of this system eliminates the inefficient use of ball sealers or chemical diverter methods for perforation isolation, which often yield questionable results. The Selective Stimulation Tool has been designed primarily for coiled tubing applications, and the unique design aspects of the tool will be discussed which allow safe coiled tubing conveyance of the system. Since the SST is designed to run through the production tubing and work in the casing below, the need to pull the completion prior to the job is eliminated. This provides economic advantages in both the amount of equipment required and time spent on the job, since the well does not have to be re-completed after the treatment. Using coiled tubing as a workstring also allows the operation to be performed while the well is live. This eliminates the need to kill the well with heavy weight kill fluids, which may cause formation damage. The SST utilizes dual inflatable packing elements for interval isolation to allow the precise placement of treating fluids within the wellbore. The tool is resettable, allowing a complete zone to be treated with only one coiled tubing trip in the hole. The development of this tool system has also accelerated the technical evolution of other thru-tubing and general inflatable element designs to increase their performance. The development and history of the inflatable element used for the SST system will be discussed in this paper. This paper also outlines the design criteria used during the development of the tool system and the testing done to qualify the new inflatable element design. A description of the tools’ basic components will be included along with a summary of the different operational positions of the system. In addition, a discussion of field applications completed to date will also be covered, as well as possible future operations which may utilize this new tool system.
A systematic search for a bipolar predisposing locus on chromosome 5. (1992)

Chromosome 5 markers spanning the pter to the qter were used to examine linkage to bipolar illness in 14 pedigrees. Twenty-four loci were examined in 237 individuals, of whom 69 were either bipolars or schizoaffectives. Marker genotypes were determined for each individual and lod scores were calculated under a dominant disease model with a maximum penetrance of 85%, a disease gene frequency of 0.015, a variable age of onset, and a phenocopy rate of 0.001. Under the assumption that bipolar illness is genetically homogeneous, the total lod scores from all pedigrees with each marker were uniformly lower than -2.0, suggesting the absence of linkage to disease at any of these loci. Multipoint analysis allowed exclusion of intervals between markers. When lod scores were calculated allowing for heterogeneity, no subset of linked families was found. These results indicate that in our pedigree series almost the entire mapped region of chromosome 5 can be excluded for linkage to bipolar illness.
In vivo volumetric imaging of the mouse embryonic brain using chirp-coded excitation and a high-frequency annular-array. (2010)

Many genetically engineered mice display abnormal development of the central nervous system (CNS) and high-frequency ultrasound (HFU) offers great potential for efficient, serial in vivo phenotyping of the developing embryonic mouse brain. However, HFU mouse-embryo imaging remains challenging because of the orientation of the embryos and of the limited acoustic penetration depth of HFU. In this study, a 34-MHz, five-element annular array was excited using conventional mono-cycle and chirp-coded excitations. Synthetic focusing and pulse compression (for the chirp excitation) were used to form images with increased depth of field and penetration depth (for the chirp excitation). In utero, in vivo 3-D data sets were acquired from 48 embryos over four stages from embryonic days E10.5 to E13.5, and CNS volume renderings were obtained. The chirp-based renderings were more morphologically accurate than the mono-cycle-based renderings, and the chirp provided sufficient penetration depth to correctly segment the brain ventricles lying deep inside the mother. The chirp renderings indicated that the early CNS architecture was dominated by the third and fourth brain ventricles, with the lateral ventricles contributing more at later stages. [Work supported by NIH Grant nos. NS038461 and EB008606.]
Impact of effective pedagogy oninformation technology students withweak academic backgrounds (2010)

In India today, many students in STEM disciplines at technical institutions below the top rank are seriously lacking in prerequisiteknowledge and skills and motivation to learn. This paper reports on the implementation of a learner-centered teaching approach in aninformation technology program in such an academic setting. Learning objectives covering the full spectrum of Bloom’s Taxonomy ofEducational Objectives were used to guide the preparation of lessons, assignments, and examinations, and active and inquiry-basedlearning were used for lectures and assignments. Compared with previous students who had been taught traditionally, the studentstaught in this manner showed dramatically improved performances in analytical problem solving and critical and creative thinking, andthey reported a greater interest in the subject and a greater level of enthusiasm about the lectures. Although there is still considerableroom for improvement, the results indicate a great potential for proven learner-centered pedagogies to improve the chances of successfor STEM students who are at high risk of failure in developing countries.
Closed Loop Transmit Diversity in WCDMA HS-DSCH (2005)

The paper summarizes the system performance of the high speed downlink shared channel (HS-DSCH) in WCDMA using closed loop mode 1 transmit diversity. The results show that, scheduling one user at a time in the Pedestrian A channel model, transmit diversity yields similar capacity gains as the sector antenna. On the other hand, in highly dispersive channels, a loss in the system throughput relative to the sector antenna, is observed. This loss is mainly due to random spatial interference patterns (the so called flashlight effect), that are present in the HS-DSCH setting when a single user is scheduled with the maximum available resources (power/codes) at each time instant. In order to mitigate the flashlight effect, a simple scheme is proposed in which multiple users are simultaneously scheduled using different scrambling codes. Scheduling multiple users makes the interference almost spatially white, resulting in a system throughput gain.
Controlled electromagnetic sources for measuring electrical conductivity beneath the oceans: 1. Forward problem and model study (1982)

Exact closed‐form expressions for the electromagnetic induction fields produced by vertical and horizontal current sources in the conducting ocean overlying a one‐dimensional earth are derived from the Maxwell equations. Numerical methods for the evaluation of the solutions are given, including correction for the finite size of real sources. Simple models of the electrical conductivity structure of the ocean crust and lithosphere are deduced from geologic, petrologic, and laboratory data, and their electromagnetic response is modeled. Horizontal electric dipole sources produce much larger field amplitudes than their vertical counterparts for a given frequency and range, and the horizontal electric field offers superior received signal performance. Reflections of electromagnetic waves from the sea surface and thermocline must be considered for low enough frequencies or long ranges. Estimates of the ambient noise level from natural electromagnetic sources in the frequency range 0.01–10 Hz are presented. The ability of controlled sources to determine features of the conductivity of the ocean crust and upper mantle, especially low conductivity zones, is demonstrated. If the mantle conductivity is low enough, horizontal ranges of 50 km and conductivity estimates to over 20 km depth can be achieved.
Here comes the wallet phone [wireless credit card] (2005)

This paper discusses NTT DoCoMo's latest offering, the wireless credit card. DoCoMo, Japan's largest cellphone system operator, is working with major travel and banking organizations to extend the reach of its e-wallet service. These wallet phones are equipped with a wireless smart card chip, called FeliCa, and can be used to make electronic purchases at stores or vending machines, act as boarding passes on certain domestic flights, and authorize entry through corporate security doors. A year after DoCoMo introduced the e-wallet, the company has shipped about 6 million of the handsets. The company is expected to ship about 15 million handsets by the end of 2006.
Functional Group Transformations of Diols, Cyclic Ethers, and Lactones Using Aqueous Hydrobromic Acid and Phase Transfer Catalyst under Microwave Irradiation (2003)

Synthesis of bromoalkanols has been achieved from diols, ethers, and lactones using aq HBr (48%) and tetrabutylammonium iodide/bromide as phase transfer catalyst under microwave irradiation. This environmentally benign route provides enhanced yields of products and does away with the use of benzene as compared to existing conventional methods.
Distortional Buckling of Thin-Walled Beams/Panels. I: Theory (1995)

The introduction of the standing seam panel for roof systems provided the building industry with an efficient solution to watertightness problems. These panels have two major advantages over the conventional trapezoidal through-fastened panel: an elevated seam and concealed “hold-down” clips. The relatively small depth-to-width ratio of the panel guarantees that overall, the panel is laterally stable under gravity load. The capacity of laterally stable standing-seam panels may, however, be reduced due to lateral instability of the unsupported compression flange. This mode of instability has been referred to in the literature as distortional buckling—a form of instability for unsupported lengths between those for local and lateral buckling. In the present paper, an analytical expression, based on a beam on elastic foundation model, is presented for estimating the elastic distortional buckling stress in sections with laterally unsupported compression flanges. The beam is assumed to comprise the outstanding leg, and the elastic foundation is provided by the rotational restraint of the tension flange and the web. A comparison of the analytical results with the results from elastic finite-strip buckling analyses shows good agreement between the two methods of analysis.
A NEW COMPUTER PROGRAM FOR SLOPE STABILITY ANALYSES (1992)

TSLOPE3 is a new computer program, which has been developed by TECHBASE Australia Pty for solving complex three-dimensional problems, such as slope stability analyses. The working, characteristics, applications and benefits of the program are discussed.
Effects of gadopentetate dimeglumine administration after osmotic blood-brain barrier disruption: toxicity and MR imaging findings. (1991)

Osmotic blood-brain barrier disruption with intraarterial chemotherapy has been shown to be beneficial in the treatment of malignant brain tumors. Imaging blood-brain barrier disruption is necessary to document the extent and degree of disruption and to correlate disruption with drug delivery. The present study evaluated blood-brain barrier disruption with gadopentetate dimeglumine-enhanced MR imaging and the associated toxicity of gadopentetate dimeglumine administration. Blood-brain barrier disruption was performed in seven dogs for imaging analysis and 17 dogs for toxicity evaluation. In the absence of gadopentetate dimeglumine administration, blood-brain barrier disruption could not be imaged. Enhanced MR imaging with a gadopentetate dimeglumine dose of 0.1 mmol/kg provided good images of disruption at an imaging time of 3 hr after disruption. However, when gadopentetate dimeglumine was given intravenously in conjunction with osmotic blood-brain barrier disruption, there was a statistically significant (p = .02) dose-dependent increase in the frequency of seizures, with 50% of the animals who received 0.1 mmol/kg and 75% who received 0.2 mmol/kg developing delayed seizures. Our findings show that, as with ionized iodinated CT contrast agents, gadopentetate dimeglumine is associated with toxicity when used in conjunction with osmotic blood-brain barrier disruption in dogs. Such toxicity may be a contraindication to the use of gadopentetate dimeglumine for monitoring patients with osmotically induced disruption of the blood-brain barrier.
Synergistic High-flux Oil–Saltwater Separation and Membrane Desalination with Carbon Quantum Dots Functionalized Membrane (2019)

The treatment of offshore oil spills requires effective oil–water separation, where oil would be recovered and the collected seawater would be used to generate fresh water for an emergency water supply. Herein, a hydrophobic membrane was fabricated simply by a controlled cross-linking reaction between C18-CQDs (octadecylamine-functionalized carbon quantum dots) and commercial textiles using tolylene-2,4-diisocyanate. The modified membrane not only achieved efficient oil–saltwater separation (up to 99%) but also exhibited unique permselectivity: highly permeable to water vapor yet impermeable to liquid water, which is feasible for water desalination. Our research offers an “all-in-one” prototype for oil–water separation and saltwater desalination using a single type membrane.
Periodic Artifact Reduction in Fourier Transforms of Full Field Atomic Resolution Images (2015)

The discrete Fourier transform is among the most routine tools used in high-resolution scanning/transmission electron microscopy (S/TEM). However, when calculating a Fourier transform, periodic boundary conditions are imposed and sharp discontinuities between the edges of an image cause a cross patterned artifact along the reciprocal space axes. This artifact can interfere with the analysis of reciprocal lattice peaks of an atomic resolution image. Here we demonstrate that the recently developed Periodic Plus Smooth Decomposition technique provides a simple, efficient method for reliable removal of artifacts caused by edge discontinuities. In this method, edge artifacts are reduced by subtracting a smooth background that solves Poisson's equation with boundary conditions set by the image's edges. Unlike the traditional windowed Fourier transforms, Periodic Plus Smooth Decomposition maintains sharp reciprocal lattice peaks from the image's entire field of view.
Lasing in 15 atm CO2 cell optically pumped by a Fe:ZnSe laser (2021)

10 μm lasing is studied in a compact CO2-He cell pressurized up to 15 atm when optically pumped by a ~50 mJ Fe:ZnSe laser tunable around 4.3 μm. The optimal pump wavelength and partial pressure of CO2 for generating 10 μm pulses are found to be ~4.4 μm and 0.75 atm, respectively. Without cavity optimization, the optical-to-optical conversion efficiency reached ~10% at a total pressure of 7 atm. The gain lifetime is measured to be ~1 μs at pressures above 10 atm, indicating the feasibility of using high-pressure optically pumped CO2 for the efficient amplification of picosecond 10 μm pulses.
Superior photoluminescence (PL) of Pr^3+-In, compared to Pr^3+-Ga, selenide-chalcogenide bulk glasses and PL of optically-clad fiber (2014)

The photoluminescent-(PL)-properties of Pr³⁺-ions in indium-containing selenide-chalcogenide bulk-glasses are found to be superior when compared with gallium-containing analogues. We observe circa doubling of mid-infrared (MIR) PL intensity from 3.5 to 6 μm for bulk glasses, pumped at 1.55 μm wavelength, and an increased excited state lifetime at 4.7 μm. PL is reported in optically-clad fiber. Ga addition is well known to enhance RE³⁺ solubility and PL behavior, and is believed to form ([RE³⁺]-Se-[Ga(III)]) in the glasses. Indium has the same outer electronic-structure as gallium for solvating the RE-ions. Moreover, indium is heavier and promotes lower phonon energy locally around the RE-ion, thereby enhancing the RE-ion PL behavior, as observed here.
A robust motion estimation algorithm for PIV (2005)

The present study proposes an approach for robust estimation of the instantaneous motion field from a time-lagged pair of PIV images. The method is based on phase correlation, where the phase of the Fourier components is used for motion parameter estimation. Unlike the cross correlation-based techniques, this technique uses 'whitening' FIR filters to sharpen the cross correlation maxima, thereby improving the accuracy of identification of the peak. The proposed method also combines the advantages of the phase correlation and the cross correlation techniques in determining the reliability of the estimates, thus providing a method of filtering out a significantly large number of spurious vectors. This reliability metric helps reduce the possibility of over-smoothing the flow field when performing data validation. With regard to the efficiency of the technique, both phase correlation and cross correlation are derived from the Fourier components of the same image region. Each of the estimates can thus be obtained in parallel, without increasing the computational complexity of the system. Unlike many region-based methods that are currently available, the entire motion is decomposed as a global and a local motion field, which helps accurately obtain high interrogation resolution estimates for the local motion field.
입체영상 산업동향에 관한 연구 -3D 입체영상을 중심으로- (2011)

인간이 받아들이는 정보의 80% 이상이 눈을 통해 들어온다는 사실은 시각적인 부분이 정보통신 서비스에서 얼마나 필요한지를 보여 준다. 궁극적으로 인간이 현실에서 느끼는 것과 같은 현실성과 자연의 느낌이 그대로 인식되는 영상의 제작을 하기위해 고안된 것이 바로 3차원 입체영상인 것이다. 3차원 입체영상은 시각정보를 화면에 전달하여 화면에 표시되는 영상을 시청자가 3차원적으로 인식하게 만드는 방식이다. 이는 현재 상용화가 되어있는 HD 영상과 함께 차세대 영상 제작 기술로 주목되었고, 이에 따르는 폭넓은 산업적 파급효과 때문에 몇 년 전부터 미국, 유럽, 일본 등을 중심으로 많은 연구 개발이 진행되어 왔다. 입체영상 산업 비중의 증가와 더불어 국내에서도 이에 대한 관심이 증대되고 있으며, 2002년 월드컵의 입체방송을 통해 국내 3차원 입체영상 시장의 활성화와 관련기업들의 경쟁력 확보에 계기가 되었다. 본 연구에서는 이처럼 활발하게 개발이 진행되고 있는 3차원 입체영상의 개발 현황과 국내외 시장변화를 살펴보고, 후발주자인 국내 업계가 관련 기술을 확보하고 주력해야할 분야에 대해 고찰해 보려한다.
Analysis of PCV-41 control system (U) (1965)

This report talks about Analysis of PCV-41 control system (U).
On-chip SERS analysis for single mimic pathogen detection using Raman-labeled nanoaggregate-embedded beads with a dielectrophoretic chip (2011)

The integration of Raman-labeled nanoaggregate-embedded beads (NAEBs) for high performance SERS analysis of single mimic pathogen on a self-designed dielectrophoretic chip is demonstrated. The Raman tags called NAEBs are silica-coated, dye-induced aggregates of a small number of gold nanoparticles (AuNPs). In this work, NAEBs consisting of a Raman dye tetramethyl-rhodamine-5-isothiosyanate (TRITC) are chemically functionalized with streptavidin to detect biotin-functionalized polystyrene (PS) microspheres which mimic as pathogens. The sample solution of completely mixed streptavidin-functionalized NAEBs and biotin-functionalized PS microspheres is pumped into the microfluidic channel of a dielectrophoretic chip. By giving an AC voltage on the embedded electrodes, a single mimic pathogen can be caught via the non-contact dielectrophoretic force and suspended at the central cross of four aluminum electrodes for subsequent Raman spectroscopic detection. The SERS signal of TRITC is used as a spectral signature of specific mimic pathogen recognition, otherwise only the background Raman signal of a PS microsphere is observed. A pathogen-specific biosensor based on the dielectrophoresis-Raman spectroscopy system is developed, and the proof-ofconcept is confirmed by the specific molecular interaction model of streptavidin with biotin. Therefore, the on-chip multiplex SERS analysis of pathogens can be anticipated by employing different dye-tagged NAEBs simultaneously in a sample solution. We believe this bioassay has the ability to screen and detect multiple pathogens with minimal sample processing and handling even a small number of pathogens is present.
A Channel Aware MAC Protocol in an ALOHA Network with Selfish Users (2012)

We consider a game theoretic model incorporating channel state information into slotted ALOHA in a fading environment. Each user sets a threshold for her channel gain and sends a packet only when the channel gain is higher than the threshold at a given slot. This threshold is decided to maximize the net benefit of a user, utility minus power consumption. The asymptotic behaviors of the total throughput at a symmetric Nash equilibrium point are studied for fading and non-fading environments in a homogeneous system. It is shown that the total throughput in a fading environment increases as the number of users increases, while the total throughput in the simple classical slotted ALOHA decreases when users are sensitive enough to power consumption. Convergence to the symmetric Nash equilibrium is also studied.
ChemInform Abstract: GENERAL APPROACH FOR THE SYNTHESIS OF POLYQUINENES VIA THE WEISS REACTION. PREPARATION OF THE CHIRAL TETRACYCLO(6.6.0.01,5.08,12)TETRADECANE‐3,6,10,13,‐TETRAENE (1985)

Abstract Die Umsetzung des Cycloocten‐dions (I) mit Acetondicarbonsäureester (II) liefert das Bis‐Addukt (IIIa), das zu (IIIb) verseift und decarboxyliert wird.