gebhart/patrepeval huggingface dataset:
RPCL: A Framework for Improving Cross-Domain Detection with Auxiliary Tasks (2021)

Cross-Domain Detection (XDD) aims to train an object detector using labeled image from a source domain but have good performance in the target domain with only unlabeled images. Existing approaches achieve this either by aligning the feature maps or the region proposals from the two domains, or by transferring the style of source images to that of target image. Contrasted with prior work, this paper provides a complementary solution to align domains by learning the same auxiliary tasks in both domains simultaneously. These auxiliary tasks push image from both domains towards shared spaces, which bridges the domain gap. Specifically, this paper proposes Rotation Prediction and Consistency Learning (PRCL), a framework complementing existing XDD methods for domain alignment by leveraging the two auxiliary tasks. The first one encourages the model to extract region proposals from foreground regions by rotating an image and predicting the rotation angle from the extracted region proposals. The second task encourages the model to be robust to changes in the image space by optimizing the model to make consistent class predictions for region proposals regardless of image perturbations. Experiments show the detection performance can be consistently and significantly enhanced by applying the two proposed tasks to existing XDD methods.
Data-aided timing offset estimation for frequency selective fading channels (2004)

In this paper, a novel algorithm for timing offset estimation is proposed for GSM and GPRS handsets, especially for multipath channels with large delay-spread. The timing offset leads to errors in the channel response estimation with a consequent increase in the overall bit error rate (BER). Thus, timing synchronization and tracking are crucial for satisfactory functioning of burst mode mobile communication receivers. In the proposed technique, minimum residual error energy concept is used for capturing multi-path delay profile and correlation based method is used for fine timing offset. Some simulation results are provided to illustrate the effectiveness of the proposed method.
Characteristics for Electrical Contact of Silver Base Alloys Containing Magnesium, Manganese and Lanthanum Oxides (1974)

Silver base alloys containing magnesium-, manganese- and lanthanum-oxides were prepared by internal oxidation in air at 650°C. The characteristics of erosion resistance, welding adhesion resistance, and contact resistance of these contacts have been measured under an applied voltage of 100 V and testing currents from 10 to 50 A in alternating current.The addition of lanthanum oxide is very effective in improving the above characteristics. The contacts containing lanthanum oxide (0.5 at%La) have higher welding resistance and lower contact resistance than silver-12 wt% cadmium oxide contacts, and both contacts are equal in erosion resistance. On the other hand, although additions of magnesium and manganese oxides are not so effective as that of lanthanum oxide, the erosion resistance of magnesium oxide (1.0 at%Mg) and manganese oxide (3.2 at%Mn) contacts are comparable to that of 12 wt% cadmium oxide contacts in the high current region over 30 A. Furthermore, the change in the amount of erosion with current becomes small for magnesium-and manganese-oxide contacts.
Automatic facial feature extraction by genetic algorithms (1999)

An automatic facial feature extraction algorithm is presented. The algorithm is composed of two main stages: the face region estimation stage and the feature extraction stage. In the face region estimation stage, a second-chance region growing method is adopted to estimate the face region of a target image. In the feature extraction stage, genetic search algorithms are applied to extract the facial feature points within the face region. It is shown by simulation results that the proposed algorithm can automatically and exactly extract facial features with limited computational complexity.
ChemInform Abstract: Amino Acids. Part 7. A Novel Synthetic Route to L‐Proline. (1987)

Abstract The L‐5‐oxoproline esters (I), obtained from L‐glutamic acid, are transformed to L‐proline (V) by the method outlined in the reaction scheme.
Transformational placement and synthesis (2000)

Novel methodology and algorithms to seamlessly integrate logic synthesis and physical placement through a transformational approach are presented.
Fabrication of templates with rectangular bits on circular tracks by combining block copolymer directed self-assembly and nanoimprint lithography (2012)

We combine block copolymer directed self-assembly with nanoimprint lithography to generate templates with rectangular patterns through an original double imprint process. We use a rotary e-beam tool to separately expose circumferential and radial line/space chemical contrast patterns with periodicities commensurate to the natural period of two lamellae-forming poly(styrene-b-methyl methacrylate) (PS-b-PMMA) block copolymers. Line patterns are formed by directed self-assembly of PS-b-PMMA on chemical patterns on two separate submaster templates, one with circumferential lines to define concentric tracks, and a second template on which the block copolymer is used to form radial lines at constant angular pitch. The patterns are subsequently transferred to their underlying Si substrates to form submaster templates. Using two sequential nanoimprinting steps, we combine the radial and circumferential submaster line patterns into a final quartz master template with rectangular bits on circular tracks.
Rolling Regeneration Trap for Diesel Particulate Control (2003)

One way to achieve low temperature regeneration on diesel particulate traps is to employ NO 2 as the oxidant. However, the engine may not produce sufficient NO x to achieve the required particulate regeneration. An RRT (rolling regeneration trap) was proposed as a way to enhance the effective concentration in diesel engine exhaust. The RRT uses catalyzed ceramic foam, which allows repeated use of existing NO x in the exhaust stream. The ceramic foam is a filter itself: thus, it can reduce the particulate loading on the wall-flow filter, which is more prone to plugging by the particulate deposits. Furthermore, the presence of particulate matter in the catalyzed section circumvents the high temperature limit imposed by thermodynamic equilibrium of a simple NO+NO 2 +O 2 system. However, experimental results revealed that the regeneration efficiency on the wall-flow section was very low and NO 2 slip is an issue.
Magnetoresistance in yttrium iron garnet (1978)

The magnetoresistance of bulk and epitaxial films of doped n-type yttrium iron garnet is reported for the first time. In (111) films a ΔR/R of −0.55% is observed as a saturating applied field H is rotated out of the (111) plane to the film normal. There is no observable change in ΔR/R as H is rotated in the (111) plane, with the current I in various directions in the (111) plane. This isotropy of ΔR/R in the (111) plane has not been observed in other ferromagnetic materials such as iron and nickel and is not understood as yet. The same isotropy in the (111) plane is also observed in bulk yttrium iron garnet. A possible use of this magnetoresistance for magnetoresistive detectors in magnetic bubble devices is discussed.
Salus: A System for Server-Aided Secure Function Evaluation. (2012)

Secure function evaluation (SFE) allows a set of mutually distrustful parties to evaluate a function of their joint inputs without revealing their inputs to each other. SFE has been the focus of active research and recent work suggests that it can be made practical. Unfortunately, current protocols and implementations have inherent limitations that are hard to overcome using standard and practical techniques. Among them are: (1) requiring participants to do work linear in the size of the circuit representation of the function; (2) requiring all parties to do the same amount of work; and (3) not being able to provide complete fairness. A promising approach for overcoming these limitations is to augment the SFE setting with a small set of untrusted servers that have no input to the computation and that receive no output, but that make their computational resources available to the parties. In this model, referred to as server-aided SFE, the goal is to tradeoff the parties ’ work at the expense of the servers. Motivated by the emergence of public cloud services such as Amazon EC2 and Microsoft Azure, recent work has explored the extent to which server-aided SFE can be achieved with a single server. In this work, we revisit the sever-aided setting from a practical perspective and design singleserver-aided SFE protocols that are considerably more efficient than all previously-known protocols. We achieve this in part by introducing several new techniques for garbled-circuit-based protocols, including a new and efficient input-checking mechanism for cut-and-choose and a new pipelining technique that works in the presence of malicious adversaries. Furthermore, we extend the serveraided model to guarantee fairness which is an important property to achieve in practice. Finally, we implement and evaluate our constructions experimentally and show that our protocols (regardless of the number of parties involved) yield implementations that are 4 and 6 times faster than the most optimized two-party SFE implementation when the server is assumed to be malicious and covert, respectively.
Development of real-time elastic characteristics measurement system for ultrasonic-based tissue characterization of arterial wall (2004)

For measurement of minute change in thickness using ultrasound, the phase tracking method based on the constraint least-squares approach has been developed. By using the thickness change of arterial wall measured by this method, local elastic characteristic of the arterial wall is calculated, and fast calculation makes a real-time 2D measurement of the elastic characteristics possible. We have developed a real-time measurement system that displays the 2D image of the elastic characteristics of the arterial wall. In order to assess the measurement accuracy of the system, we made a phantom of silicone tube, and the thickness change of the tube wall was measured by the system and another off-line ultrasound measurement system. From the experimental results, it was obtained that our novel system had an accuracy of about 0.2 /spl mu/m. using this system, we measured the thickness change of carotid arterial wall, and obtained real-time 2D images of the elastic characteristics.
Parametric drive of a toroidal MEMS rate integrating gyroscope demonstrating &lt; 20 PPM scale factor stability (2015)

In this paper, we report parametric drive of a MEMS rate integrating gyroscope for reduction of drifts induced by drive electronics. A Toroidal Ring Gyroscope (TRG) with 100k Q-factor at 1760 μm diameter was fabricated in epitaxial silicon encapsulation (EpiSeal) process. Device was operated in rate integrating mode using a FPGA based control system. In contrast to the conventional amplitude control architecture, the central star electrode of the gyroscope, connected to a single drive channel was utilized for amplitude control of both modes. Due to the parametric pumping effect, energy added to each (x and y) mode is proportional to the existing amplitude of the respective mode. As a result, errors associated with finding the orientation of the standing wave and x-y drive gain drift are bypassed. Compared to conventional x-y drive architecture, as high as 14× improvement in scale factor stability was observed with parametric pumping, resulting in better than 20 ppm scale factor stability without any compensation or temperature stabilization.
Linguistic association rules (2002)

The class of a priori algorithms are popular association rule mining techniques. However, these algorithms are computationally expensive. The authors propose another novel approach to extract association rules. The method represents an itemset information as a cell of a hypercube. The hypercube encodes associations between the items of each transaction. Apart from proposing the main result, we also propose linguistic association rules. Linguistic association rules encode fuzzy information and represent summarized rules.
Distinctions between fetal and adult human platelet‐derived growth factor–responsive neural precursors (2008)

Differences in the intrinsic proliferation, phenotype, and self-renewal properties of fetal and adult human PRPs suggest they are distinct populations, which may result in distinct myelin-production capabilities.
Broadband High Efficiency Post-matching Doherty Power Amplifier Based on Mixed-Topology (2018)

In this paper, a broadband and high efficiency post-matching Doherty power amplifier (PMDPA) based on a mixed-topology is proposed. The gate bias is set to give a smaller conduction angle for the carrier device and a deep Class-C mode for the peaking device to realize a high back-off efficiency. A “ \pmbπ type” harmonic injection network allows the second harmonic components of two active devices to be mutually injected, thus achieving waveform amplitude modulation (WAM). This mitigates the deteriorated performance caused by the employed gate bias settings. Moreover, a coupled phase compensation network is used to compensate for the loss in bandwidth caused by this harmonic injection network. For demonstration purposes, a high efficiency Doherty prototype is devised based on two identical 10W GaN HEMTs. Measurement results show that a drain efficiency of at least 60% is achieved at 5.3-6 dB back-off power from 1.4 to 2.1 GHz.
Reviving rechargeable lithium metal batteries: enabling next-generation high-energy and high-power cells (2011)

Herein reported is a fundamentally new strategy for reviving rechargeable lithium (Li) metal batteries and enabling the emergence of next-generation safe batteries featuring a graphene-supported Li metal anode, including the highly promising Li–sulfur, Li–air, and Li–graphene cells with exceptionally high energy or power densities. All the Li metal anode-based batteries suffer from a high propensity to form Li dendrites (tree-like structures) at the anode upon repeated discharges/charges. A dendrite could eventually penetrate through the separator to reach the cathode, causing internal short-circuiting and even explosion, the main reason for the battery industry to abandon rechargeable lithium metal batteries in the early 1990s. By implementing graphene sheets to increase the anode surface areas, one can significantly reduce the anode current density, thereby dramatically prolonging the dendrite initiation time and decreasing the growth rate of a dendrite, if ever initiated, possibly by a factor of up to 1010 and 105, respectively.
Colloidal Crystal Capillary Columns—Towards Optical Chromatography (2005)

Colloidal crystal capillary columns (C4s; see cover) produced by pressure-assisted colloidal-microsphere assembly in capillaries (PACMAC) display a high degree of optical uniformity in the visible and near-IR spectral ranges and are able to spectroscopically differentiate alkanes by diffraction. The Figure shows sections of 180 nm (blue) and 225 nm diameter (green) polystyrene microsphere C4s, and the 225 nm diameter polystyrene microsphere C4 after infiltration with ethanol (yellow).
Dendrimer based terahertz source and spectrometry (2009)

Electro-optic dendrimer was used to generate terahertz radiation. Sub-pico second temporal pulse was detected via time-domain spectroscopy. Fourier spectrum of the temporal signal reveals a frequency range of ~7 THz.
USING ACID LEVEL, ACESULFAME POTASSIUM/ASPARTAME BLEND RATIO AND FLAVOR TYPE TO DETERMINE OPTIMUM FLAVOR PROFILES OF FRUIT FLAVORED BEVERAGES (1998)

The effect of flavor types (natural and artificial), aspartame (APM)/acesulfame potassium (Ace‐K) blend ratios (50%/50% ‐ 80%/20% sweetness contribution), and acid levels (50‐70% dry basis) on flavor profiles of raspberry beverages was evaluated. Optimum flavor profiles of beverages sweetened with APM/Ace‐K blends would have high fruit flavor scores, balanced sourness and astringency and minimal side tastes/aftertastes. Descriptive flavor profilists developed a lexicon of flavor/mouthfeel attributes for evaluating the samples in the design. The design was replicated 3 times. Acid level influenced sourness and sweetness scores; increasing acid levels increased sourness and slightly decreased sweetness. Natural flavor in beverages showed lower raspberry intensities across all acid levels and blend ratios than artificial flavor. APM/Ace‐K blend ratio had no effect on flavor/mouthfeel attributes. Additionally, HIS side tastes were minimized across all APM/Ace‐K blend ratios. The optimum natural flavor beverage would contain a 60/40 to 75/25 APM/Ace‐K ratio with 58‐70% acid (dry basis). Optimum artificial flavor beverages would contain 50/50 to 80/20 APM/Ace‐K ratios with 57‐68% acid (dry basis).
3D Microelectronics: Self‐Assembled Multifunctional 3D Microdevices (Adv. Electron. Mater. 6/2016) (2016)

In article number 1500459, Jeong-Hyun Cho and co-workers realize functionalized 3D polyhedral microelectronic devices by an evolved self-assembly method. Their results suggest that desired metal and semiconductor patterns can be incorporated onto surfaces of 3D dielectric polyhedral microstructures. Their self-assembly process could be applied to the development of next-generation 3D microelectronic sensors and devices utilizing the numerous advantages of 3D configurations.
Computerized scheme for determination of the likelihood measure of malignancy for pulmonary nodules on low‐dose CT images (2003)

An automated computerized scheme has been developed for determination of the likelihood measure of malignancy of pulmonary nodules on low-dose helical CT (LDCT) images. Our database consisted of 76 primary lung cancers (147 slices) and 413 benign nodules (576 slices). With this automated computerized scheme, the location of a nodule was first indicated by a radiologist. The outline of the nodule was segmented automatically by use of a dynamic programming technique. Various objective features on the nodules were determined by use of outline analysis and image analysis, and the likelihood measure of malignancy was determined by use of linear discriminant analysis (LDA). The effect of many different combinations of features and the performance of LDA in distinguishing benign nodules from malignant ones were evaluated by means of receiver operating characteristic (ROC) analysis. The Az value (area under the ROC curve) obtained by the computerized scheme in distinguishing benign nodules from malignant ones was 0.828 when a single slice was employed for each of the nodules. However, the Az value was improved to 0.846 when multiple slices were used for determination of the likelihood measure of malignancy. The Az values obtained by the computerized scheme on LDCT images were significantly greater than the Az value of 0.70, which was obtained from our previous observer studies by radiologists in distinguishing benign nodules from malignant ones on LDCT images. The automated computerized scheme for determination of the likelihood measure of malignancy would be useful in assisting radiologists to distinguish between benign and malignant pulmonary nodules on LDCT images.
Think Global, Act Local: A Buffer Cache Design for Global Ordering and Parallel Processing in the WAFL File System (2016)

Given the enormous disparity in access speeds between main memory and storage media, modern storage servers must leverage highly effective buffer cache policies to meet demanding performance requirements. At the same time, these page replacement policies need to scale efficiently with ever-increasing core counts and memory sizes, which necessitate parallel buffer cache management. However, these requirements of effectiveness and scalability are at odds, because centralized processing does not scale with more processors and parallel policies are a challenge to implement with maximum effectiveness. We have overcome this difficulty in the NetApp Data ONTAP WAFL file system by using a sophisticated technique to simultaneously allow global buffer prioritization while providing parallel management operations. In addition, we have extended the buffer cache to provide a soft isolation of different workloads' buffer cache usage, which is akin to buffer cache quality of server (QoS). This paper presents the design and implementation of these significant extensions in the buffer cache of a high-performance commercial file system.
Improved manifold coordinate representations of hyperspectral imagery (2005)

Abstract : There are many well-known sources of nonlinearity present in hyperspectral imagery; these include bi-directional reflectance distribution function (BRDF) effects, multi-path scatter between heterogeneous pixel constituents, and the variable presence of water, an attenuating medium, in the scene. In recent publications, we have presented a data-driven approach to representing the nonlinear structure of hyperspectral imagery. The approach relies on graph methods to derive geodesic distances on the high-dimensional hyperspectral data manifold. From these distances, a set of manifold coordinates that parameterizes the data manifold is derived. Because of the computational and memory overhead required in the geodesic coordinate calculations, the approach relies on partitioning the scene into subsets where the optimal manifold coordinates can be derived in an efficient manner, followed by an alignment stage during which the embedded manifold coordinates for each subset are aligned to a common manifold coordinate system. We demonstrated the feasibility of the coordinate and alignment methodology and the ability of the manifold approach to provide higher data compression and more effective classification when compared with linear methods. In this paper we develop an improved approach to the manifold coordinate alignment phase with an improved sampling methodology. Results are demonstrated using examples of hyperspectral imagery derived from PROBE2 hyperspectral scenes of the Virginia Coast Reserve barrier islands.
Oxidation of 3-, 7-, and 12-hydroxyl Groups of Cholic Acid by an Alkalophilic<i>Bacillus</i>sp. (1994)

Journal Article Oxidation of 3-, 7-, and 12-hydroxyl Groups of Cholic Acid by an Alkalophilic Bacillus sp. Get access Hiromi Kimura, Hiromi Kimura Research Laboratories, R & D Division, Tokyo Tanabe Co., Ltd., 33-3, Akabanekita 2-chome, Kita-ku, Tokyo 115, Japan Search for other works by this author on: Oxford Academic Google Scholar Akio Okamura, Akio Okamura Research Laboratories, R & D Division, Tokyo Tanabe Co., Ltd., 33-3, Akabanekita 2-chome, Kita-ku, Tokyo 115, Japan Search for other works by this author on: Oxford Academic Google Scholar Hiroshi Kawaide Hiroshi Kawaide Research Laboratories, R & D Division, Tokyo Tanabe Co., Ltd., 33-3, Akabanekita 2-chome, Kita-ku, Tokyo 115, Japan Present address: Department of Bioconversion, Faculty of Agriculture, Yamagata University, 1–23 Wakaba-cho, Tsuruoka-shi, Yamagata 997, Japan. Search for other works by this author on: Oxford Academic Google Scholar Bioscience, Biotechnology, and Biochemistry, Volume 58, Issue 6, 1 January 1994, Pages 1002–1006, https://doi.org/10.1271/bbb.58.1002 Published: 01 January 1994 Article history Received: 30 July 1993 Published: 01 January 1994