gebhart/patrepeval huggingface dataset:
Thermally-Induced Failures in Railroad Tapered Roller Bearings (1999)

An Association of American Railroads (AAR) class F (6 1/2 × 12) tapered-roller bearing assembly is modeled, using finite elements, to examine thermally-induced failures observed in the laboratory when the bearing is operating at relatively high speeds. It is hypothesized that this failure is caused by an unstable thermal expansion/internal bearing load feedback process. Sequentially-coupled, transient thermal and static structural models are used to obtain the thermal-mechanical transient time response as a function of speed, seal type, and lubricant starvation at the rib contact. The model assumes no external loads and zero initial preload (zero end-play). Therefore, the loads developed in the bearing are thermally-induced and self-equilibrated. Two train speeds, viz. 80 and 100 mph, are considered. Simulation results indicate that at axle rotational speeds equivalent to a train speed of 100 mph, a combination of grease starvation and heat flux from the contact seals cause high rib temperature and subsequent unstable load growth which will lead to failure. At rotational speeds equivalent to train speeds of 80 mph or for bearing assemblies that utilize special design seals, the rib temperature is relatively low and no operational instabilities were observed for the model used.
Polarization-independent, wide-incident-angle and dual-band perfect absorption, based on near-field coupling in a symmetric metamaterial (2017)

We numerically and experimentally investigated a dual-band metamaterial perfect absorber (MPA), utilizing the near-field coupling of double split-ring resonators (DSRRs). Owing to the near-field coupling between resonators, two arms in each DSRR resonate in different phases, leading to a dual-band perfect absorption. The proposed MPA also exhibits polarization-insensitive behavior and maintains the high absorption above 90% up to a wide range of incident angle more than 45°. Finally, to further consolidate our approach, a multi-band absorption is also studied by exploiting the near-field coupling among a larger number of DSRRs. Our work is expected to be applied to future broadband devices using MPA.
Performance metrics and methods for tracking in surveillance (2002)

Performance evaluation has become an increasingly important feature of video surveillance systems, as researchers attempt to assess the reliability and robustness of their operation. Although many algorithms and systems have been developed to address the problem of detecting and tracking moving objects in the image, few systems have been tested in anything other than fairly ideal conditions. In order to satisfy the requirements of a real video surveillance task, the algorithms will need to be assessed over a wide range of conditions. The aim of this paper is to examine some of the main requirements for effective performance analysis and to examine methods for characterising video datasets.
Syntheses and Phase-transfer Catalytic Activities of Monoazacrown Ethers (1992)

Preparative methods for and catalytic activities of monoaza-18-crown-6 or monoaza-15-crown-5 in the reaction of 1-bromooctane with aqueous KI or NaI were investigated. Monoazacrown ethers were prepared by debenzylation of N-benzylmonoazacrown ethers, obtained from the reaction of N-benzyldiethanolamine and oligoethylene glycol ditosylate. The phase-transfer catalytic activity of N-benzylmonoazacrown ethers was higher than that of the corresponding monoazacrown ethers.
NMR Study of Nearly Two-Dimensional Ferromagnet (CnH2n+1NH3)2CuCl4(n=1∼4) at Low Temperature (1977)

NMR of Cl 35 nuclei (within layer) of (C n H 2 n +1 NH 3 ) 2 CuCl 4 is observed at the magnetically ordered state. Through the angular dependence of the NMR frequency, the crystallographic structure of the CuCl 4 layer is determined, which is slightly different from the known crystal structure at room temperature. The existence of various moment directions is shown in (C 3 H 7 NH 3 ) 2 CuCl 4 . The magnetic coupling between layers is discussed. The observed magnetization of (C n H 2 n +1 NH 3 ) 2 CuCl 4 ( n =1, 3 and 4) is compared with the renormalized spin wave theory. It is also shown that the magnetization follows the “T 3/2 -law” given as, <S>/S=1-α(T/T c ) 3/2 , with α∼0.45. The field dependent behavior of the magnetization of (C 2 H 5 NH 3 ) 2 CuCl 4 is discussed at antiferromagnetic state.
Is Apolipoprotien E codon 112 Polymorphisms Associated with Recurrent Pregnancy Loss? (2010)

Apo E4 codon 112C point mutation is, by itself, not associated with an elevated risk of recurrent pregnancy loss, but rather codon 112C in association with codon 158C is a risk factor for RPL.
Daily Quantification of Myoglobin Forms on Beef Longissimus Lumborum Steaks Over 7 Days of Display by Near-infrared Diffuse Reflectance Spectroscopy (2021)

Near-infrared diffuse reflectance spectroscopy (NIR-DRS) was utilized to develop an algorithm using approximately 18 wavelengths spanning 480 to 650 nm to determine oxymyoglobin (OxyMb), deoxymyoglobin (DeoxyMb), and metmyoglobin (MetMb) contents on beef longissimus lumborum muscles. Daily changes in subsurface myoglobin redox forms were evaluated for 7 d using NIR-DRS and compared with the surface color as assessed by a HunterLab MiniScan spectrophotometer as a reference modality. Both measurements revealed that MetMb increased steadily over the duration of display, showing high correlation (R2 = 0.91) between the 2 methods. Comparatively, whereas NIR-DRS revealed OxyMb to have decreased steadily over the period of display, the HunterLab MiniScan spectrophotometer indicated a much later onset of the apparent decrease of OxyMb, resulting in a moderate correlation (R2 = 0.64) between the 2 methods. No correlation was found between the 2 methods regarding the changes of DeoxyMb over the duration of display. The newly developed NIR-DRS algorithm has potential as an alternative method of color assessment in postrigor skeletal muscle.
Data interface between a radiology information system and a computed radiography system using a personal computer and standard software. (1993)

We describe the implementation of a simple data interface between a radiology information system and a computed radiography system that uses personal computers and standard software. The radiology information system was developed in house and runs in a local area network of personal computers. The computed radiography system is connected to a picture archiving and communication system. We have implemented a software data interface on a microcomputer, allowing automated transfer of patient data from the radiology information system program to the computed radiography scheduling program. The interface adds essential information used by the picture archiving and communication system to handle work lists, routing, and archiving algorithms. We have improved the user interface, shortened the scheduling time, enabled coherence of data bases, and eased the use of computed radiography and examination routing in the picture archiving and communication system. We have been using this interface for more than 1 year without difficulties. This custom solution addresses the problem of interconnecting existing equipment, avoiding proprietary restrictions or the lack of effective standards. This approach can be applied to any radiology environment that uses personal computers.
Shape from shading (1989)

Understanding how the shape of a three dimensional object may be recovered from shading in a two-dimensional image of the object is one of the most important - and still unresolved - problems in machine vision. Although this important subfield is now in its second decade, this book is the first to provide a comprehensive review of shape from shading. It brings together all of the seminal papers on the subject, shows how recent work relates to more traditional approaches, and provides a comprehensive annotated bibliography.The book's 17 chapters cover: Surface Descriptions from Stereo and Shading. and Source from Shading. The Eikonal Equation: some Results Applicable to Computer Vision. A Method for Enforcing Integrability in from Algorithms. Obtaining from Information. The Variational Approach to from Shading. Calculating the Reflectance Map. Numerical from and Occluding Boundaries. Photometric Invariants Related to Solid Shape. Improved Methods of Estimating from Using the Light Source Coordinate System. A Provably Convergent Algorithm for from Shading. Recovering Three Dimensional from a Single Image of Curved Objects. Perception of Solid from Shading. Local Analysis Pentland. Radarclinometry for the Venus Radar Mapper. Photometric Method for Determining Surface Orientation from Multiple Images.Berthold K. P. Horn is Professor of Electrical Engineering and Computer Science at MIT. He has presided over the field of machine vision for more than a decade and is the author of Robot Vision. Brooks is Reader in Computer Science at The Flinders University of South Australia. Shape from Shading is included in the Artificial Intelligence series, edited by Michael Brady, Daniel Bobrow, and Randall Davis.
<p>Randomized, Double-Masked, Placebo-Controlled Dose Escalation Study of TAK-639 Topical Ophthalmic Solution in Subjects with Ocular Hypertension or Primary Open-Angle Glaucoma</p> (2020)

TAK-639 was generally well tolerated up to 0.6% BID. Further non-clinical studies will improve understanding of the MOA and the penetration of TAK-639 to the anterior chamber.
Design and modelling of solidly mounted resonators for low-cost particle sensing (2015)

This work presents the design and fabrication of Solidly Mounted Resonator (SMR) devices for the detection of particulate matter (PM2.5 and PM10) in order to develop a smart low-cost particle sensor for air quality. These devices were designed to operate at a resonant frequency of either 870 MHz or 1.5 GHz, employing zinc oxide as the piezoelectric layer and an acoustic mirror made from molybdenum and silicon dioxide layers. Finite element analysis of the acoustic resonators was performed using COMSOL Multiphysics software in order to evaluate the frequency response of the devices and the performance of the acoustic mirror. The zinc oxide based acoustic resonators were fabricated on a silicon substrate using a five mask process. The mass sensitivity of the acoustic resonators was estimated using a 3D finite element model and preliminary testing has been performed. The theoretical and observed mass sensitivity were similar at ca. 145 kHz ng−1 for the 870 MHz resonator when detecting PM2.5 suggesting that SMR devices have potential to be used as part of a miniature smart sensor system for airborne particle detection.&#13;\n
Recursive Adaptive Sparse Exponential Functional Link Neural Network for Nonlinear AEC in Impulsive Noise Environment (2017)

Recently, an adaptive exponential trigonometric functional link neural network (AETFLN) architecture has been introduced to enhance the nonlinear processing capability of the trigonometric functional link neural network (TFLN). However, it suffers from slow convergence speed, heavy computational burden, and poor robustness to noise in nonlinear acoustic echo cancellation, especially in the double-talk scenario. To reduce its computational complexity and improve its robustness against impulsive noise, this paper develops a recursive adaptive sparse exponential TFLN (RASETFLN). Based on sparse representations of functional links, the robust proportionate adaptive algorithm is deduced from the robust cost function over the RASETFLN in impulsive noise environments. Theoretical analysis shows that the proposed RASETFLN is stable under certain conditions. Finally, computer simulations illustrate that the proposed RASETFLN achieves much improved performance over the AETFLN in several nonlinear scenarios in terms of convergence rate, steady-state error, and robustness against noise.
La position stratégique de la chine dans la mer jaune et la compétition sino-américaine contemporaine dans la péninsule coréenne (2010)

Résumé Après la débâcle du système de la guerre froide dans les années 1990, la Chine a établi des relations diplomatiques avec la Corée du Sud et est entrée en relations compétitives avec les États-Unis. La « crise » causée par le problème nucléaire nord-coréen était une bonne occasion pour la Chine de prouver son influence sur la Corée du Nord. Dans la situation actuelle, après la signature des accords par les Six pays en février 2007, la Chine a espéré que son rôle et le système de conférence des six pays pourraient être maintenus à l’avenir, influer sur le processus de réunification de la Corée. Les Chinois pensaient, avec la stratégie de l’ access denial , pouvoir défendre et obtenir, en cas de d’hostilités avec les États-Unis, le contrôle de la mer Jaune en créant un barrage de mines et avec les missiles de portée courte et moyenne, en donnant leur soutien à la Corée du Nord et en maintenant les relations pacifiques avec la Corée du Sud. Les États-Unis pourraient regagner leur place avantageuse dans la péninsule Coréenne par les accords signés en février 2007 avec la Corée du Nord et en avril 2007 le FTA avec la Corée du Sud.
Phytocosmetics Derived from Traditional Chinese Medicine (2021)

Tradition Chinese Medicine (TCM) has a long history of clinical and safety records. The application of TCM in cosmetic products has become a popular trend in the industry. The cosmetic application of TCM emerged in pre-Qin dynasty (before 221 BC), which contained numerous historical records of their usage in skin disease and beauty. The principle of TCM is a balance of “Yin” and “Yang,” the two opposing forces, as suggested in Taoism. The imbalance of the two forces is proposed in accounting for skin problems. With this principle in mind, herbal extract and/or herbal formula has been tailored for facial beauty; in particular, a rich record has described the herbal prescription for concubines in the royal palace aiming to remove freckles, soothe skin, and prevent wrinkles. In this chapter, the history and usage of TCM in cosmetics are summarized. In addition, the future perspective of TCM in this industry is being discussed. Although TCM in cosmetic products seems to have a shining future, the problems of herb authenticity and toxic contamination are hindering the development. Nevertheless, TCM meets the slogan of “green beauty” for cosmetic industry and consumer.
Serine incorporation into the selenocysteine moiety of glutathione peroxidase. (1987)

The selenium in mammalian glutathione peroxidase is present as a selenocysteine ([Se]Cys) moiety incorporated into the peptide backbone 41-47 residues from the N-terminal end. To study the origin of the skeleton of the [Se]Cys moiety, we perfused isolated rat liver with 14C- or 3H-labeled amino acids for 4 h, purified the GSH peroxidase, derivatized the [Se]Cys in GSH peroxidase to carboxymethylselenocysteine ([Se]Cys(Cm)), and determined the amino acid specific activity. Perfusion with [14C]cystine resulted in [14C]cystine incorporation into GSH peroxidase without labeling [Se]Cys(Cm), indicating that cysteine is not a direct precursor for [Se]Cys. [14C]Serine perfusion labeled serine, glycine (the serine hydroxymethyltransferase product), and [Se]Cys(Cm) in purified GSH peroxidase, whereas [3-3H]serine perfusion only labeled serine and [Se]Cys(Cm), thus demonstrating that the [Se]Cys in GSH peroxidase is derived from serine. The similar specific activities of serine and [Se]Cys(Cm) strongly suggest that the precursor pool of serine used for [Se] Cys synthesis is the same or similar to the serine pool used for acylation of seryl-tRNAs.
Terahertz emission from ferromagnetic Co/Pt heterostructures (2018)

The terahertz emission based on the spin current in the ferromagnetic heterostructure Co/Pt is demonstrated.
Use of Captopril to Reduce Serum Lipids in Hypertensive Patients with Hyperlipidemia (1988)

The effects on serum lipids of substituting captopril for other antihypertensive drugs were evaluated in 24 essential hypertensives with stable hypercholesterolemia (total cholesterol 250 to 350 mg/dL). Captopril, 50 mg bid, was substituted for one of the nondiuretic drugs the patients were already taking. Patients on a diuretic continued the same diuretic at the same dosage. After 6 months of treatment including captopril, patients returned for 3 months to their previous therapeutic scheme (rechallenge). Treatment with captopril caused a reduction in total cholesterol (-18%) and triglycerides (-26%) and an increase in high-density lipoprotein (HDL) cholesterol (+27%). When patients returned to their precaptopril therapy, total and HDL cholesterol returned to precaptopril values. These effects of captopril on lipid profile of hypertensive patients with hypercholesterolemia could be important for the reduction of cardiovascular complications in treated hypertensives.
Parallel Optimization of Synthetic Pathways within the Network of Organic Chemistry (2012)

Finding a needle in a haystack: The number of possible synthetic pathways leading to the desired target of a synthesis can be astronomical (1019 within five synthetic steps). Algorithms are described that navigate through the entire known chemical-synthetic knowledge to identify optimal synthetic pathways. Examples are provided to illustrate single-target optimization and parallel optimization of syntheses leading to multiple targets. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
ChemInform Abstract: CIS‐4,4′‐STILBENEDIOLS. SYNTHESIS FROM DIENESTROL, STRUCTURE, AND PHOTOCYCLIZATION TO DIHYDROPHENANTHRENES (1978)

Abstract Aus den Dienen (I) entstehen mit den Olefinen (II) die Diels‐Alder‐Addukte (III) bzw. (IV) und (V) in guten Ausbeuten.
New architecture single-phase micro inverter with cascaded low voltage DC/DC cells (2012)

A new architecture using multi-level lows voltage DC/DC cells with super high power density is presented in this paper. The new class inverter topology is based on cascaded low-voltage DC/DC converter cells that will benefit from the hyper-competitive DC/DC computer/telecom converter global supply chain and manufacturing infrastructures. Furthermore, the switching frequency of each DC/DC cell can be design at high switching frequency while boundary mode control is adopted to achieve zero voltage switching (ZVS) reducing switching loss of power semiconductors. In addition, a method is illustrated to achieve minimum number of the Total Harmonics Distortion (THD) based on the different stair-steps of output waveforms. Finally, the concept of the novel architecture is built by Matlab simulink to verify the feasibility. Finally, a prototype with single phase is also set up to test the performance and verify the new architecture for micro-inverter application.
Low Dose Leptin Administration Reverses Effects of Sustained Weight-Reduction on Energy Expenditure and Circulating Concentrations of Thyroid Hormones (2002)

Maintenance of a reduced body weight is associated with decreased 24-hour energy expenditure, and decreased circulating concentrations of leptin and thyroid hormones. To determine whether these adaptive metabolic and endocrine changes are partly leptin-mediated, we measured body composition, aspects of energy expenditure, and circulating concentrations of leptin and thyroid hormones in 4 subjects at 3 time points: 1.) Usual body weight; 2.) While stable at 10% reduced body weight; and 3.) During a 5-week period at 10% reduced body weight while receiving twice per day leptin injections that restored 8 AM circulating leptin concentrations to those seen at usual body weight. During maintenance of a 10% reduced body weight, circulating T3, T4, and leptin concentrations were decreased. All of these endocrine changes were reversed by administration of "replacement" doses of leptin (r-metHuLeptin). Indirect calorimetry, and subtle changes in body composition associated with leptin administration, were used to calculate the net change in stored calories and in 24-hour energy expenditure. Total energy expenditure increased in all subjects during r-metHuLeptin administration. These data indicate that decrease leptin concentrations resulting from loss of fat mass account for some aspects of the endocrine/metabolic phenotype associated with the weight-reduced state.
Hypoxia induces cardiac malformations via A1 adenosine receptor activation in chicken embryos (2008)

These data indicate that hypoxia adversely influences cardiac malformations during development, in part by A(1)AR signaling.
Data from HO-3867, a Safe STAT3 Inhibitor, Is Selectively Cytotoxic to Ovarian Cancer (2023)

&lt;div&gt;Abstract&lt;p&gt;STAT3 is well corroborated preclinically as a cancer therapeutic target, but tractable translational strategies for its blockade by small molecule inhibitors have remained elusive. In this study, we report the development of a novel class of bifunctional STAT3 inhibitors, based on conjugation of a diarylidenyl-piperidone (DAP) backbone to an &lt;i&gt;N&lt;/i&gt;-hydroxypyrroline (–NOH) group, which exhibits minimal toxicity against normal cells and good oral bioavailability. Molecular modeling studies of this class suggested direct interaction with the STAT3 DNA binding domain. In particular, the DAP compound HO-3867 selectively inhibited STAT3 phosphorylation, transcription, and DNA binding without affecting the expression of other active STATs. HO-3867 exhibited minimal toxicity toward noncancerous cells and tissues but induced apoptosis in ovarian cancer cells. Pharmacologic analysis revealed greater bioabsorption and bioavailability of the active (cytotoxic) metabolites in cancer cells compared with normal cells. The selective cytotoxicity of HO-3867 seemed to be multifaceted, eliciting differential activation of the Akt pathway in normal versus cancer cells. RNAi attenuation experiments confirmed the requirement of STAT3 for HO-3867–mediated apoptosis in ovarian cancer cells. &lt;i&gt;In vivo&lt;/i&gt; testing showed that HO-3867 could block xenograft tumor growth without toxic side effects. Furthermore, in primary human ovarian cancer cells isolated from patient ascites, HO-3867 inhibited cell migration/invasion and survival. Our results offer preclinical proof-of-concept for HO-3867 as a selective STAT3 inhibitor to treat ovarian cancer and other solid tumors where STAT3 is widely upregulated. &lt;i&gt;Cancer Res; 74(8); 2316–27. ©2014 AACR&lt;/i&gt;.&lt;/p&gt;&lt;/div&gt;
A Tensionable Suture-based Cerclage Is an Alternative to Stainless Steel Cerclage Fixation for Stabilization of a Humeral Osteotomy During Shoulder Arthroplasty (2020)

A DLTC has higher load to failure and trends toward lower gap displacement compared with a SSWC. The DLTC construct may therefore be a viable alternative for fixation of periprosthetic fractures or osteotomies of the humeral shaft during shoulder arthroplasty.
Article on Ethnic Diversity Prompts Minority Retort (1996)

Share Icon Share Twitter Facebook Reddit LinkedIn Reprints and Permissions Cite Icon Cite Search Site Citation Aklilu Sauvage, Steven E. Plaut, Luciano N. Blanco, Vincent H. Crespi, James H. Stith; Article on Ethnic Diversity Prompts Minority Retort. Physics Today 1 December 1996; 49 (12): 13–78. https://doi.org/10.1063/1.881521 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentPhysics Today Search Advanced Search