gebhart/patrepeval huggingface dataset:
The tetraammine copper(II) complex in zeolite Y. A Raman spectroscopic study (1985)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe tetraammine copper(II) complex in zeolite Y. A Raman spectroscopic studyP. K. Dutta and R. E. ZaykoskiCite this: Inorg. Chem. 1985, 24, 21, 3490–3492Publication Date (Print):October 1, 1985Publication History Published online1 May 2002Published inissue 1 October 1985https://pubs.acs.org/doi/10.1021/ic00215a039https://doi.org/10.1021/ic00215a039research-articleACS PublicationsRequest reuse permissionsArticle Views223Altmetric-Citations12LEARN 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
High-Relaxivity Superparamagnetic Iron Oxide Nanoworms with Decreased Immune Recognition and Long-Circulating Properties (2014)

One of the core issues of nanotechnology involves masking the foreignness of nanomaterials to enable in vivo longevity and long-term immune evasion. Dextran-coated superparamagnetic iron oxide nanoparticles are very effective magnetic resonance imaging (MRI) contrast agents, and strategies to prevent immune recognition are critical for their clinical translation. Here we prepared 20 kDa dextran-coated SPIO nanoworms (NWs) of 250 nm diameter and a high molar transverse relaxivity rate R2 (∼400 mM(-1) s(-1)) to study the effect of cross-linking-hydrogelation with 1-chloro-2,3-epoxypropane (epichlorohydrin) on the immune evasion both in vitro and in vivo. Cross-linking was performed in the presence of different concentrations of NaOH (0.5 to 10 N) and different temperatures (23 and 37 °C). Increasing NaOH concentration and temperature significantly decrease the binding of anti-dextran antibody and dextran-binding lectin conconavalin A to the NWs. The decrease in dextran immunoreactivity correlated with the decrease in opsonization by complement component 3 (C3) and with the decrease in the binding of the lectin pathway factor MASP-2 in mouse serum, suggesting that cross-linking blocks the lectin pathway of complement. The decrease in C3 opsonization correlated with the decrease in NW uptake by murine peritoneal macrophages. Optimized NWs demonstrated up to 10 h circulation half-life in mice and minimal uptake by the liver, while maintaining the large 250 nm size in the blood. We demonstrate that immune recognition of large iron oxide nanoparticles can be efficiently blocked by chemical cross-linking-hydrogelation, which is a promising strategy to improve safety and bioinertness of MRI contrast agents.
Structure of cis-dihydridotetrakis(diethyl phenylphosphonite)iron(II) (1972)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of cis-dihydridotetrakis(diethyl phenylphosphonite)iron(II)Lloyd J. Guggenberger, Donald D. Titus, Michael T. Flood, Richard E. Marsh, A. A. Orio, and Harry B. GrayCite this: J. Am. Chem. Soc. 1972, 94, 4, 1135–1143Publication Date (Print):February 1, 1972Publication History Published online1 May 2002Published inissue 1 February 1972https://pubs.acs.org/doi/10.1021/ja00759a018https://doi.org/10.1021/ja00759a018research-articleACS PublicationsRequest reuse permissionsArticle Views122Altmetric-Citations26LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Meta-atom library generation via an efficient multi-objective shape optimization method (2020)

Optimizing the shape of metasurface unit cells can lead to tremendous performance gains in several critically important areas. This paper presents a method of generating and optimizing freeform shapes to improve efficiency and achieve multiple metasurface functionalities (e.g., different polarization responses). The designs are generated using a three-dimensional surface contour method, which can produce an extensive range of nearly arbitrary shapes using only a few variables. Unlike gradient-based topology optimization, the proposed method is compatible with existing global optimization techniques that have been shown to significantly outperform local optimization algorithms, especially in complex and multimodal design spaces.
Control of the magnetic domain of Pt/Co/Ru/MgO multilayer: Effect of Co thickness and Ru insertion (2020)

In this study, we investigated the effect of Co film thickness and Ru insertion on the magnetic domain structure of a Pt/Co/Ru/MgO system during the magnetization reversal process. It was observed that with increasing Co thickness, the magnetization process systematically changed from the dendrite-like domain growth region to an isolated skyrmion bubble generation region through the suppression of domain wall motion and the decrease in the nucleation field. In addition, by Ru insertion, a similar systematic change in the magnetization reversal process was observed in a thinner Co film while maintaining the Co thickness dependent trend. It was also found during our study that the change in the magnetization reversal process could be inferred by observing the shape of the magnetization curve. Moreover, our experiment showed that once skyrmion bubbles were generated, the Ru inserted Pt/Co/MgO system was stable even after the removal of the magnetic field. This magnetic-field insensitivity of skyrmion bubbles is a pivotal characteristic and could be of great advantage for many spintronics applications.
Integrating Fiber Fabry-Perot Cavity Sensor Into 3-D Printed Metal Components for Extreme High-Temperature Monitoring Applications (2017)

This paper reports the methods of embedding into 3-D printed metal components a fused silica capillary designed to accept an in-fiber Fabry-Perot cavity-based extreme high-temperature sensor. The components are manufactured in stainless steel (SS316) by additive manufacturing using selective laser melting (SLM). The temperature sensor consists of a standard single-mode optical fiber with the F-P sensor located at the distal end of the fiber with the fiber being inserted into the capillary. The capillary is either directly embedded into the structure during the SLM build process or brazed into the structure in between the SLM build process, and the advantages and disadvantages of these two manufacturing approaches are discussed. Temperature sensing of up to 1000 °C inside the metal with an accuracy better than ±10 °C is reported. The capillary can be directly embedded in the component, which needs to be monitored, or it can be embedded in a metal coupon, which can be attached to a component by conventional welding technology, including the use of laser metal deposition (LMD). In the case of LMD, the sensor coupon can also be fully encapsulated by over cladding the coupon.
Multi-layer Restoration - The Impact on the Optical Layer (2014)

Multi-layer resilience including optical restoration against optical failures and backup interfaces provisioned against port failures is considered from an operator's perspective. This approach saves 25%-30% of the IP links in Deutsche Telekom's core network.
Developmental Status of Molten Salt Reactor (2021)

次世代原子炉の一つとして注目される溶融塩炉について，海外の開発動向を紹介するとともに，国内では最近開始された経済産業省支援事業を紹介する。溶融塩炉は，安全性，放射性廃棄物低減，変動電源親和性などの特長を持ち，小型モジュール炉(SMR)としても注目される。
Stochastic Modulation in Molecular Electronic Transport Junctions: Molecular Dynamics Coupled with Charge Transport Calculations (2008)

The experimental variation in conductance that can be expected through dynamically evolving Au-molecule-Au junctions is approximated using molecular dynamics to model thermal fluctuations and a nonequilibrium Green's function code (Hückel-IV 2.0) to calculate the charge transport. This generates a statistical set of conductance data that can be used to compare directly with experimental results. Experimental measurements on Au-single molecule junctions show a large variation in conductance values between different identically prepared junctions. Our computational results indicate that the Au-Au and the Au-molecule fluctuations provide extensive geometric freedom and an associated broad distribution in calculated conductance values. Our results show agreement with experimental measurements of the low bias voltage conductance and conductance distribution for both thiol-Au and amine-Au linker structures. -
Expression of Adrenomedullin and Proadrenomedullin N-terminal 20 Peptide in Human and Rat Prostate (1999)

Adrenomedullin (AM) and proadrenomedullin N-terminal 20 peptide (PAMP) are two recently discovered hypotensive peptides translated from the same message transcript (preproAM mRNA). In this article we report the presence of AM, PAMP, and their mRNA in human and rat prostate and of AM receptor mRNA in rat prostate. PreproAM mRNA was found in the epithelium of normal human and rat prostate glands by in situ hybridization. In humans, it was mainly expressed in the basal cells. In rat, its expression was higher in the ducts than in the acini of all the prostate lobes. Immunocytochemistry identified a similar distribution pattern for AM compared with its mRNA but showed different locations for AM and PAMP immunoreactivity. The former was widespread in the epithelia, whereas the latter was almost exclusively found in neuroendocrine cells. In rat, Western blot analysis confirmed the presence of high levels of AM peptide in the ventral lobe and of its precursor in the ventral and dorsolateral lobes. Immunoreactivity for serotonin, chromogranin A, PAMP, and AM defined four subpopulations of prostate neuroendocrine-like cells in rat, a cell type that has not been previously described.
Anthocyanins Double the Shelf Life of Tomatoes by Delaying Overripening and Reducing Susceptibility to Gray Mold (2013)

Shelf life is an important quality trait for many fruit, including tomatoes. We report that enrichment of anthocyanin, a natural pigment, in tomatoes can significantly extend shelf life. Processes late in ripening are suppressed by anthocyanin accumulation, and susceptibility to Botrytis cinerea, one of the most important postharvest pathogens, is reduced in purple tomato fruit. We show that reduced susceptibility to B. cinerea is dependent specifically on the accumulation of anthocyanins, which alter the spreading of the ROS burst during infection. The increased antioxidant capacity of purple fruit likely slows the processes of overripening. Enhancing the levels of natural antioxidants in tomato provides a novel strategy for extending shelf life by genetic engineering or conventional breeding.
A new statistical approach for generating meaningful particle size distributions from aberration corrected STEM-HAADF images of supported metal catalysts (2012)

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
Development of a miniaturized Dynatron THz-Oscillator with a FEBIP system (2012)

A FEBIP-(Focused Electron Beam Induced Processing) - System is used to develop a novel miniaturized tunable, portable THz source for 0.1 to 6 THz. The control voltage with the high frequency is generated using a miniaturized Dynatron oscillator. An oscillator is connected to the anode of the Dynatron triode which modulates the anode voltage due to self excited oscillations. The modulated anode voltage is used to control the emission of two miniaturized electron beams, which emit in phase shifted powerful electron pulses in coaxial and opposite direction. As the charges flow in an antenna wire the free flying electron beam pulses emit dipole radiation into a resonator which is adapted in its dimensions to the expected wavelength of the emitted dipole radiation. Like in Klystrons up to 47 % of the power in the free beams is emitted into the THz radiation. Unlike as in transmitter antennas the oscillation charges are flying here in free space. This avoids additional power loss by Joules heating of the resistive wire. We expect a source power of up to 0.1 Watt for such a sources.
Retro-Reflective-Marker-Aided Target Pose Estimation in a Safety-Critical Environment (2020)

Visual technologies have an indispensable role in safety-critical applications, where tasks must often be performed through teleoperation. Due to the lack of stereoscopic and motion parallax depth cues in conventional images, alignment tasks pose a significant challenge to remote operation. In this context, machine vision can provide mission-critical information to augment the operator’s perception. In this paper, we propose a retro-reflector marker-based teleoperation aid to be used in hostile remote handling environments. The system computes the remote manipulator’s position with respect to the target using a set of one or two low-resolution cameras attached to its wrist. We develop an end-to-end pipeline of calibration, marker detection, and pose estimation, and extensively study the performance of the overall system. The results demonstrate that we have successfully engineered a retro-reflective marker from materials that can withstand the extreme temperature and radiation levels of the environment. Furthermore, we demonstrate that the proposed maker-based approach provides robust and reliable estimates and significantly outperforms a previous stereo-matching-based approach, even with a single camera.
Purification of Carbon Nanotube Using Gasification Reaction (1997)

The purification of carbon nanotube using gasification reaction was investigated. Carbon nanotube-containing material was gasified with oxygen, carbon dioxide and hydrogen using a thermo-balance, and etched with hydrogen plasma and oxygen plasma. The gasification behavior of carbon nanotube-containing materials strongly depended on the gasification agent and carbon nanotube was able to be purified with oxygen, carbon dioxide and hydrogen plasma. Under the experimental conditions examined the gasification with oxygen at a temperature of 750°C was most efficient to purify carbon nanotube.
Data from Molecular Imaging of CXCR4 Receptor Expression in Human Cancer Xenografts with [<sup>64</sup>Cu]AMD3100 Positron Emission Tomography (2023)

&lt;div&gt;Abstract&lt;p&gt;The chemokine receptor CXCR4 and its cognate ligand CXCL12 are pivotal for establishing metastases from many tumor types. Thus, CXCR4 may offer a cell surface target for molecular imaging of metastases, assisting diagnosis, staging, and therapeutic monitoring. Furthermore, noninvasive detection of CXCR4 status of a primary tumor may provide an index of the metastatic potential of the lesion. Here, we report the development and evaluation of [&lt;sup&gt;64&lt;/sup&gt;Cu]AMD3100, a positron-emitting analogue of the stem cell mobilizing agent plerixafor to image CXCR4 in human tumor xenografts preselected for graded expression of this receptor. This imaging method was evaluated in lung metastases derived from human MDA-MB-231 breast cancer cells. &lt;i&gt;Ex vivo&lt;/i&gt; biodistribution studies, performed to validate the &lt;i&gt;in vivo&lt;/i&gt; imaging data, confirmed the ability of [&lt;sup&gt;64&lt;/sup&gt;Cu]AMD3100 to image CXCR4 expression. Our findings show the feasibility of imaging CXCR4 by positron emission tomography using a clinically approved agent as a molecular scaffold. Cancer Res; 70(10); 3935–44. ©2010 AACR.&lt;/p&gt;&lt;/div&gt;
Timing Markers Showing Pacemaker Behavior to Aid in the Follow‐Up of a Physiological Pacemaker (1983)

In the present study a multiprogrammable, atrial synchronous, ventricular inhibited pacemaker (Enertrax) was used in six patients. This pacer makes it possible to evaluate pacemaker performance non-invasively and facilitates the correct interpretation of the difficult ECGs produced by these complex pacemakers.
A Bias Supply Scheme for a Self-Powered EMS for Battery-less IoT Applications Powered by Electromagnetic Energy Harvesters (2018)

This paper presents a bias supply scheme for a self-powered energy management system (EMS) for internet of things (IoT) applications powered by ultra-low-voltage electromagnetic energy harvesters (EMEHs). The bias supply scheme utilizes the first two cycle of the EMEH voltage to provide a start-up voltage, with the help of a two-stage Villard charge pump, to the control circuit. Then, it utilizes the unregulated intermediate voltage of the EMS alongside a single stage charge pump with a floating capacitor to sustain the operation of the system. The bias supply scheme is completely passive and can be implemented with off-shelf discrete components or on a standard technology node. The EMS is also capable of providing a tight output voltage regulation using a tiny magnetic substrate based de-de converter. Experimental results show the effectiveness of the presented solution to operate with an ultra-low-voltage EMEH that has a damped voltage characteristics from 0. 8V to 10m V. Also, the tiny magnetic substrate based de-de converter provides a tight regulated voltage of 1.2V at 5mA for group of wireless sensors while achieving efficiency around 83% for load currents between $100\mu \mathrm{A}$ and 200mA.
Formation of Titanium Nitride Nanoparticles within Mesoporous Silica SBA-15 (2005)

We report the first synthesis of titanium nitride (TiN) nanoparticles inside the nanoscale channels of mesoporous silica SBA-15. The TiN precursor, Ti(NMe(2))(4) in toluene, was incorporated into the methyl group-modified channels of the SBA-15 powder. The functionalization of pore surfaces with methyl groups generates hydrophobic surfaces that facilitate impregnation with Ti(NMe(2))(4) and minimizes reactions between the TiN precursor and the hydroxyl groups on the surface of SBA-15. Formation of TiN nanoparticles inside the mesoporous channels of SBA-15 was carried out by subsequent ammonolysis at high temperatures (700-750 degrees C). The final products have been characterized by TEM and EELS images, powder XRD patterns, FTIR spectra, UV-vis absorption spectra, and nitrogen adsorption isotherm measurements to confirm the presence and distribution of TiN nanoparticles in the SBA-15 samples.
Preparation of 2‐Chloro‐1,3‐Bis(dimethylamino)Trimethinium Hexafluorophosphate (2003)

Abstract 2‐Chloro‐1, 3‐bis(dimethylamino)trimethinium hexafluorophosphate Chloroacetyl chloride Dimethylformamide Phosphorus oxychloride Hexafluorophosphoric acid
Simulations of indirectly driven gas-filled capsules at the National Ignition Facility (2014)

Gas-filled capsules imploded with indirect drive on the National Ignition Facility have been employed as symmetry surrogates for cryogenic-layered ignition capsules and to explore interfacial mix. Plastic capsules containing deuterated layers and filled with tritium gas provide a direct measure of mix of ablator into the gas fuel. Other plastic capsules have employed DT or D3He gas fill. We present the results of two-dimensional simulations of gas-filled capsule implosions with known degradation sources represented as in modeling of inertial confinement fusion ignition designs; these are time-dependent drive asymmetry, the capsule support tent, roughness at material interfaces, and prescribed gas-ablator interface mix. Unlike the case of cryogenic-layered implosions, many observables of gas-filled implosions are in reasonable agreement with predictions of these simulations. Yields of TT and DT neutrons as well as other x-ray and nuclear diagnostics are matched for CD-layered implosions. Yields of DT-filled capsules are over-predicted by factors of 1.4–2, while D3He capsule yields are matched, as well as other metrics for both capsule types.
A simulation study on bridge defects in lamellae-forming diblock copolymers (2018)

In this paper we will describe a self-consistent field theory simulation study on bridge defects in lamellae-forming diblock copolymers. Because the bridge defects are buried three-dimensional defects formed in the diblock copolymer film, it is difficult to observe and determine what causes them. To determine the cause of the bridge defects effectively, self-consistent field theory simulations were used. By reproducing structural characteristics of the bridge defects in the simulation, the cause of the bridge defects were clarified. Finally, we discussed ways to prevent the bridge defects.