gebhart/patrepeval huggingface dataset:
Deep Binaries: Encoding Semantic-Rich Cues for Efficient Textual-Visual Cross Retrieval (2017)

Cross-modal hashing is usually regarded as an effective technique for large-scale textual-visual cross retrieval, where data from different modalities are mapped into a shared Hamming space for matching. Most of the traditional textual-visual binary encoding methods only consider holistic image representations and fail to model descriptive sentences. This renders existing methods inappropriate to handle the rich semantics of informative cross-modal data for quality textual-visual search tasks. To address the problem of hashing cross-modal data with semantic-rich cues, in this paper, a novel integrated deep architecture is developed to effectively encode the detailed semantics of informative images and long descriptive sentences, named as Textual-Visual Deep Binaries (TVDB). In particular, region-based convolutional networks with long short-term memory units are introduced to fully explore image regional details while semantic cues of sentences are modeled by a text convolutional network. Additionally, we propose a stochastic batch-wise training routine, where high-quality binary codes and deep encoding functions are efficiently optimized in an alternating manner. Experiments are conducted on three multimedia datasets, i.e. Microsoft COCO, IAPR TC-12, and INRIA Web Queries, where the proposed TVDB model significantly outperforms state-of-the-art binary coding methods in the task of cross-modal retrieval.
ChemInform Abstract: Michael Additions of Benzotriazole‐Stabilized Carbanions (1998)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Signo de oscurecimiento tumoral: hallazgo imagenológico que puede corresponder a una embolización pre-quirúrgica exitosa en meningiomas (2022)

Objetivo: El presente trabajo busca describir el cambio en las características imagenológicas en resonancia magnética cerebral en estudios pre y post-embolización de meningiomas en plan de ser llevados a resección quirúrgica. Justificación: La embolización pre-quirúrgica de los meningiomas intracraneales ha mostrado beneficios relacionados principalmente a un menor sangrado intra-operatorio y duración de estancia hospitalaria, así como mayor facilidad técnica en su resección debido a los cambios por necrosis licuefactiva que sufre el tumor. Métodos: Se presenta un caso representativo con estudios imagenológicos pre y post-embolización realizados a un paciente que posteriormente fue llevado a resección quirúrgica de un meningioma del tercio posterior de la hoz, en el que se aprecia una marcada disminución en la intensidad de la señal en estudio de resonancia magnética cerebral, especialmente en las imágenes con información en T1 y secuencia con medio de contraste, posiblemente relacionado a la obstrucción vascular y microvascular que se logra posterior a la embolización de las arterias aferentes del tumor. Conclusión: La perdida de realce posterior a la administración de medio de contraste (Gadolinio) en las imágenes por resonancia magnética cerebral con información en T1 post-embolización, ponen en evidencia la lesión vascular y microvascular posterior a la administración de material de embolización, lo cual se convierte en un signo imagenológico de embolización exitosa o satisfactoria previa a la resección quirúrgica.
Analysis of the 64-bit Boundary in IPv6 Addressing (2015)

The IPv6 unicast addressing format includes a separation between the
prefix used to route packets to a subnet and the interface identifier
used to specify a given interface connected to that subnet. Currently,
the interface identifier is defined as 64 bits long for almost every
case, leaving 64 bits for the subnet prefix. This document describes
the advantages of this fixed boundary and analyzes the issues that
would be involved in treating it as a variable boundary.
Generation and Processing of Robust Periodic Excitations (2006)

Abstract The generation of robust periodic excitation signals to measure and identify the frequency response function of (linear) dynamic systems is studied. Such signals should result in a maximal signal-to-noise ratio in a given measurement time, have a low sensitivity to nonlinear distortions, while at the same time they should be user friendly and robust to misuse by inexperienced users. Random phase multisines are proposed that meet all these requirements: in one experiment not only the frequency response function is measured, also the disturbing noise levels at input and output are determined, and the nonlinear distortions of the plant are characterized.
SEO-HAE BRIDGE PROJECT (1998)

The Seo-Hae Grand Bridge in South Korea will have a total length of 7.31km, which will include a 990m long cable stay bridge with one 470m long main span. Gleitbau Salzburg's slipform technique is being used to construct its two 182m high pylons, and Gleitbau's well-developed equipment, engineering skills, and experienced supervision are also being used on the same site to slipform the approach piers to the cable stayed bridge. Gleitbau will also use its 'heavy lifting' technology to lift the mighty crossbeams into their final positions at various elevations on the towers. The use of slipforming guarantees absolute stability during possible typhoons. Gleitbau will use its standard slipform jacks to lift the slipform system continually. An automatic levelling system will control the slipform's exact horizontal position, to ensure the structure's accuracy and correct potential faults before inaccuracy occurs. The very accurate placing of the cable ducts for the suspension cables is being combined with the method of slipforming. A further special requirement at the bridge was the creation of a concrete structure, which can meet the environmental demands of the bridge's marine site; here, the quality of the surface concrete will be especially critical.
Lambda Research Corp: Start to finish optical design using OSLO, RayViz, and TracePro (2020)

In this demonstration we will show how OSLO, RayViz, and TracePro can be used in all phases of the optical design process. Topics to be covered include: designing and optimizing a lens in OSLO; exporting the lens from OSLO as a CAD file; using the lens model in RayViz for mechanical design and initial optical layout; combining the OSLO and RayViz models in TracePro; and analyzing the complete design in TracePro.
Catalytic asymmetric Diels Alder reactions (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic asymmetric Diels Alder reactionsHenri B. Kagan and Olivier RiantCite this: Chem. Rev. 1992, 92, 5, 1007–1019Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/cr00013a013https://doi.org/10.1021/cr00013a013research-articleACS PublicationsRequest reuse permissionsArticle Views9738Altmetric-Citations756LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
NAVAL RESEARCH LABORATORY RESEARCH REACTOR. PART IV. CONTROL SYSTEM (1957)

The design of the NRL Research Reactor control system was guided by the desire for extreme safety and versatility of operation. The electronic instrumentation for control includes a startup channel, a logarithmic signal channel, a linear signal channel, a gamma channel, and two safety channels. Duplicate equipment is used extensively throughout the control system. This permits load sharing when all electronlc units are operative; or, when a single unit fails, the operative unit can take over the load until the other one is repaired or replaced, without shutting down the reactor. There are numerous backup devices for automatic shutdown in case of reactor runaway, extensive monitoring and warning systems to anticipate and correct unsafe conditions automatically, or to allow the operator to prevent unsafe conditions, and numerous interlocks to prevent unsafe sequences of operation which might arise from inadvertent action of the operator or failure of critical instruments. For flexibility of operation as a research tool, a choice of control instruments and interlocks is available for differeat modes of operation. All the electronic equipment in the control system was fabricated in NRL shops, (auth)
High-pressure study of graphite-like B–C phases (2009)

The 300 K equations of state of graphite-like B–C phases with boron content from 0 to 50 at% have been studied using powder X-ray diffraction with synchrotron radiation up to 35 GPa. The compression axis moduli show the non-monotone dependence on boron content and strongly correlate with lattice parameters. The values of bulk moduli B 0 vary from 17.5 (0.6) GPa (t-BC4) to 30.7 (0.5) GPa (t-BC1.5), while for turbostratic graphite B 0=29.5 (1.0) GPa.
Risk and Prognosis of Hospitalization for Pneumonia Among Individuals With and Without Functioning Renal Transplants in Denmark: A Population-Based Study (2012)

The risk of first-time hospitalization for pneumonia remains high among renal transplant candidates and recipients. The attributable morbidity and mortality are of great clinical and public health concern and preventive measures are warranted.
Designing the Width and Texture of Vanadium Oxide Macroscopic Fibers: Towards Tuning Mechanical Properties and Alcohol‐Sensing Performance (2006)

Abstract Macroscopic vanadium oxide fibers have been fabricated by an extrusion process. By varying the shear rate associated with the gel extrusion process we have been able to tune the diameter and transversal geometry of the fibers at macroscopic length scales. At the mesoscopic length scale, small‐angle X‐ray scattering (SAXS) analysis provides evidence for the possibility of fine tuning the degree of alignment of the V 2 O 5 ribbons inside the fibers; this alignment is clearly improved upon increasing the shear rate. Nitrogen physisorption measurements (Brunauer–Emmett–Teller (BET)) indicate that the as‐synthesized fibers exhibit poor mesoporosity, largely due to the presence of remaining poly(vinyl alcohol) (PVA) entities. Microscopically, from XRD measurements, the fiber structure appears to be semi‐crystalline. 51 V magic angle spinning NMR (MAS NMR) spectroscopy reveals that the local environment of 51 V is typical of the structure of a V 2 O 5 ·1.8 H 2 O xerogel. We demonstrate here that the alignment of the nanoribbon subunits can be tuned via the shear rate applied during the extrusion process, which provides a good handle for tuning the mechanical and sensing properties of the as‐synthesized fibers.
Capacitive approach to restore decoupling between channels for four‐element MR coil array (2013)

Multichannel coil arrays are increasingly being used to improve signal‐to‐noise ratio in magnetic resonance imaging (MRI). The decoupling between coils is an important parameter in array design. Indeed coupling between elements affects the resonance frequency of each single coil and decreases its sensitivity. Many solutions have been developed to achieve decoupling between elements of the multichannel coil array. Presented is a capacitive solution to restore channel decoupling of a specific four‐channel receiver coil array using common conductors. The principle of an effective decoupling was first demonstrated by circuit simulations of |S|‐parameters. A receive‐only four‐channel coil array was design for rat head MRI. Experimental |S|‐parameter measurements validated the proposed capacitive approach by restoring decoupling between elements and particularly between external loops.
A real-time approach to traffic situation representation from image processing data (2002)

This paper discusses an approach to provide an environment representation of real traffic scenarios. Image processing is used to get information about the vehicle's position on the road, about detected obstacles in the vicinity and about traffic signs. This incoming information is generated by camera modules which are arranged in a way that a panoramic vision is achieved. The problem is the noisy input data from different image processing modules which makes automated driving and adequate driver warning systems very difficult. The main task to solve this problem is to build up an always consistent situation representation in real time. Situation analysis basically consists of data fusion of different object recognition modules. An object matching algorithm has been developed that takes sensor specific deviations and errors into account. The second part is a rule set that examines the current situation for temporal or spatial inconsistencies using uncertainty representation. The resulting situation description is filtered by a set of Kalman filters which also provide a single step prediction. Apart from the fusion of obstacle recognition data, the situation analysis provides information about the road and currently valid traffic signs.
All-dielectric KTiOPO_4 metasurfaces based on multipolar resonances in the terahertz region (2017)

We employ ferroelectrics to study the multipolar scattering in all-dielectric metasurfaces based on KTiOPO<sub>4</sub> (KTP) micro-disks for efficient manipulation of electromagnetic waves in the THz spectral region (0.6-1.5 THz). By adjusting the aspect ratio of the disks near the multipolar resonances, we show that the KTP disk array can form a multifunctional metasurface that covers the entire range of the electromagnetic response with resonantly enhanced anisotropic properties. The proposed ferroelectric metasurfaces will provide a versatile platform to manipulate THz waves, and open possibilities to monolithically combine it with THz generation.
Deterioration of Lemon-shu Flavor (1978)

いわゆる“レモン酒”の劣化した香気成分中にシトラールの劣化生成物が存在するかどうか, ガスクロマトグラフィーによって調べた。またレモンオイルおよびシトラールを除いたレモンオイルが, クエン酸溶液中で香気および成分において, どのように変化するか比較した。1) レモン酒の劣化した香気からシトラール劣化生成物の, p-サイメン, 2-p-トリル-プロペンおよび2-p-トリル-2-エトキシプロパンが検出された。2) レモンオイルの劣化した香気から, レモン酒の場合に検出された上記3種類のシトラール劣化生成物および2-p-トリル-2-プロパノールが検出された。3) シトラールを除いたレモンオイルは, クエン酸溶液中で3週間は香気が変わらず, シトラール劣化生成物も検出されなかった。
Blistering Phenomena of Painted Zn Alloy Electroplated Steel Sheets (1986)

Corrosion behavior of painted Zn-Fe and Zn electroplated steel sheets was investegated using the salt spray test (SST).Corrosion resistance of electrophoretically coated Zn-Fe electroplated steel sheet was superior to that of Zn electroplated steel sheet. This was considered to be caused by the difference between their corrosion resistances against OH- ions formed by cathodic reaction under the paint film. In the case of painted specimens with cross scribes, the corrosion resistance to the alkaline solution of Zn-Fe electroplated steel sheet was higher than that of Zn electroplated steel sheet. This result agreed with the result of SST. On the other hand, the corrosion resistance to alkaline solution of unpainted Zn-Fe electroplated steel sheet was not higher than that of Zn electroplated steel sheet. When cathodic current was applied in the same solution, Zn-Fe electroplated steel sheet showed a higher resistance. The resistance to blistering of Zn-Fe electroplated steel sheet was due to the corrosion resistance to alkali in the cathodically polarized state.
State of the technology : Ultrasonic tomography (1999)

A discussion on the state of the technology in ultrasonic tomography is presented. First and second generation designs are compared, along with the algorithms used to reconstruct the images. Four tomographic modes are explained. The limitations of ultrasonic tomography are discussed, particularly in context of detecting spent nuclear fuel rods inside a cylindrical canister, Compound B-scans are presented as an alternative to ultrasonic tomography. To apply this technology to the inspection needs of the NDT community, refraction correction algorithms may need to be developed. The results of a compound B-scan approach are expected to be very similar to a reflective tomography approach. This allows a choice of the two methods based on their individual limitations and the inspection constraints.
Magneto-optical confirmation of Landau level splitting in a GaN/AlGaN 2DEG grown on bulk GaN (2019)

Landau level splitting in a two-dimensional electron gas (2DEG) confined in an ultrapure GaN/AlGaN heterostructure grown by molecular beam epitaxy on bulk GaN is verified spectroscopically. The Landau level fan reconstructed from magneto-photoluminescence (PL) data yields an effective mass of 0.24m0 for the 2D electrons. Narrow excitonic PL line widths &amp;lt; 100 μeV, an atomically flat surface of the layer stack, as well as the absence of the 2DEG in the dark environment, are important ancillary experimental findings while focusing on magneto-PL investigations of the heterostructure. Simultaneously recorded Shubnikov-de Haas and magneto-PL intensity oscillations under steady UV illumination exhibit an identical frequency and allow for two independent ways of determining the 2D density.
Real-time analytical processing with SQL server (2015)

Over the last two releases SQL Server has integrated two specialized engines into the core system: the Apollo column store engine for analytical workloads and the Hekaton in-memory engine for high-performance OLTP workloads. There is an increasing demand for real-time analytics, that is, for running analytical queries and reporting on the same system as transaction processing so as to have access to the freshest data. SQL Server 2016 will include enhancements to column store indexes and in-memory tables that significantly improve performance on such hybrid workloads. This paper describes four such enhancements: column store indexes on in-memory tables, making secondary column store indexes on disk-based tables updatable, allowing B-tree indexes on primary column store indexes, and further speeding up the column store scan oper ator.
The Open vSwitch Database Management Protocol (2013)

Open vSwitch is an open-source software switch designed to be used as
a vswitch (virtual switch) in virtualized server environments. A
vswitch forwards traffic between different virtual machines (VMs) on
the same physical host and also forwards traffic between VMs and the
physical network. Open vSwitch is open to programmatic extension and
control using OpenFlow and the OVSDB (Open vSwitch Database)
management protocol. This document defines the OVSDB management
protocol. The Open vSwitch project includes open-source OVSDB client
and server implementations.
High-Speed Computer Multiplication Using a Multiple-Bit Decoding Algorithm (1970)

This paper presents a method of performing the binary multiplication beyond the scheme of multiple ADD and SHIFT. The binary multiplication algorithm will be discussed first, followed by block decoding method, logic implementation, hardware consideration, and two examples which are at the end of the discussion.
Voronoi diagram computations for planar NURBS curves (2008)

We present robust and efficient algorithms for computing Voronoi diagrams of planar freeform curves. Boundaries of the Voronoi diagram consist of portions of the bisector curves between pairs of planar curves. Our scheme is based on computing critical structures of the Voronoi diagrams, such as self-intersections and junction points of bisector curves. Since the geometric objects we consider in this paper are represented as freeform NURBS curves, we were able to reformulate the solution to the problem of computing those critical structures into the zero-set solutions of a system of nonlinear piecewise rational equations in parameter space. We present a new algorithm for computing error-bounded bisector curves using a distance surface constructed from error-bounded offset approximations of planar curves. This error-bounded algorithm is fast and produces bisector curves that are correct both in topology and geometry. Once bisectors are computed, both local and global self-intersections of the bisector curves are located and trimmed away by solving a system of three piecewise rational equations in three variables. Further, our method computes junction points at which three or more trimmed bisector curves intersect by transforming them into the solutions to a system of piecewise rational equations in the merged parameter space of the planar curves. The bisectors are trimmed at those self-intersection and global junction points. The Voronoi diagram is then computed from the trimmed bisectors using a pruning algorithm. We demonstrate the effectiveness of our approach with several experimental results.
Modulation of Cystatin A Expression in Human Airway Epithelium Related to Genotype, Smoking, COPD, and Lung Cancer (2011)

The cathepsin inhibitor Cystatin A (CSTA) has antiapoptotic properties linked with neoplastic changes in squamous cell epithelium, where it has been proposed as a diagnostic and prognostic marker of lung cancer. Notably, cystatin A is upregulated in dysplastic epithelium, prompting us to hypothesize that it might be modulated in chronic obstructive pulmonary disease (COPD), a small airway epithelial (SAE) disorder that is a risk factor for non-small cell lung cancer (NSCLC) in a subset of smokers. Here we report that genetic variation, smoking, and COPD can all elevate levels of CSTA expression in lung small airway epithelia, with still further upregulation in squamous cell carcinoma (SCC), an NSCLC subtype. We examined SAE gene expression in 178 individuals, including healthy nonsmokers (n = 60), healthy smokers (n = 82), and COPD smokers (n = 36), with corresponding large airway epithelium (LAE) data included in a subset of subjects (n = 52). Blood DNA was genotyped by SNP microarray. Twelve SNPs upstream of the CSTA gene were found to associate with its expression in SAE. Levels were higher in COPD smokers than in healthy smokers, who, in turn, had higher levels than nonsmokers. CSTA gene expression in LAE was also smoking-responsive. Using publicly available NSCLC expression data we also found that CSTA was upregulated in SCC versus LAE and downregulated in adenocarcinoma versus smoke-exposed SAE. All phenotypes were associated with different proportional expression of CSTA to cathepsins. Our findings establish that genetic variability, smoking, and COPD all influence CSTA expression, as does SCC, supporting the concept that CSTA may make pivotal contributions to NSCLC pathogenesis in both early and late stages of disease development.
Cardiovascular radiology in Peking: trends for the future. (1980)

The author outlines his visit to the People's Republic of China, and relates his observations. Comments about the present state of cardiovascular radiology in China, her special health care and economic problems, and the potential for educational exchange are offered.
Barium nitrate intracavity Raman laser (1993)

Stimulated Raman scattering (SRS) can be used to shift a laser frequency to a different spectral region. SRS in Ba(NO3)2 crystals has been demonstrated previously using nanosecond1 and picosecond5 excitation pulses.