gebhart/patrepeval huggingface dataset:
Joint-design of multiresolution modulation and ARQ protocol for prioritized packet transmission in wireless ad-hoc networks (2008)

In this article, we investigate two variants of traditional automatic repeat request (ARQ) protocols that exploit the disparity in bit error protection levels of multi-resolution M-ary phase-shift-keying for prioritizing the transport of more ldquocriticalrdquo messages in integrated voice/data and delay-sensitive applications (e.g., audio/video streaming). This cross-layer design can lead to a substantial performance improvement (e.g., better sound/picture quality or enhanced throughput of high priority messages) over non-prioritized transmission especially at low and moderate mean channel signal-to-noise ratio (SNR) values or during network congestion. For instance, our numerical results reveal that the proposed SR-ARQ-I and SR-ARQ-II schemes (beta = 0.4) yield approximately 56% and 163% higher throughput than the traditional selective-repeat ARQ protocol in Rayleigh fading at the mean channel SNR of 19dB. This significant throughput gain is obtained by not discarding the correctly demodulated bits within the erroneously demodulated symbols, and also by reducing the average number of retransmission requests in SR-ARQ-II protocol through better error protection (if possible) for the retransmitted packets. However, there exists a slight throughput penalty in the high SNR regime due to competitive nature of the ldquooptimal reliable signaling raterdquo in an unknown time-varying channel.
Coke Deposition on Product Transfer-line in Residual Oil Cracking (1983)

残油分解生成物トランスファーラインにおけるコーク析出防止条件の確立を目的に, コーク析出量と管壁温度および原料軽質化の効果を検討した。実験装置は二塔循環流動層を用いた。トランスファーラインの一部を析出コークの測定管とし, 管壁を430～560°Cの範囲のある一定温度に保持した。原料油は減圧残油および減圧と常圧残油の混合油を用い, 505°Cで15時間分解した。その結果, コーク析出量は管壁とガスの温度差によって整理することができ, 管壁温度がガス温度より低い条件では温度差が大きくなるほど増加した。また, 原料の軽質化によってガス中の高沸点留分量が減少し, コーク析出量は減少した。
The role of sulfoglucuronosyl glycosphingolipids in the pathogenesis of monoclonal IgM paraproteinemia and peripheral neuropathy (2011)

In IgM paraproteinemia and peripheral neuropathy, IgM M-protein secretion by B cells leads to a T helper cell response, suggesting that it is antibody-mediated autoimmune disease involving carbohydrate epitopes in myelin sheaths. An immune response against sulfoglucuronosyl glycosphingolipids (SGGLs) is presumed to participate in demyelination or axonal degeneration in the peripheral nervous system (PNS). SGGLs contain a 3-sulfoglucuronic acid residue that interacts with anti-myelin-associated glycoprotein (MAG) and the monoclonal antibody anti-HNK-1. Immunization of animals with sulfoglucuronosyl paragloboside (SGPG) induced anti-SGPG antibodies and sensory neuropathy, which closely resembles the human disease. These animal models might help to understand the disease mechanism and lead to more specific therapeutic strategies. In an in vitro study, destruction or malfunction of the blood-nerve barrier (BNB) was found, resulting in the leakage of circulating antibodies into the PNS parenchyma, which may be considered as the initial key step for development of disease.
Recent Advances in Transition-Metal-Free (4+3)-Annulations (2021)

Abstract (4+3)-Annulations are incredibly versatile reactions which combine a 4-atom synthon and a 3-atom synthon to form both 7-membered carbocycles as well as heterocycles. We have previously reviewed transition-metal-catalyzed (4+3)-annulations. In this review, we will cover examples involving bases, NHCs, phosphines, Lewis and Brønsted acids as well as some rare examples of boronic acid catalysis and photocatalysis. In analogy to our previous review, we exclude annulations involving cyclic dienes like furan, pyrrole, cyclohexadiene or cyclopentadiene, as Chiu, Harmata, Fernándes and others have recently published reviews encompassing such substrates. We will however discuss the recent additions (2010–2020) to the literature on (4+3)-annulations involving other types of 4-atom-synthons. 1 Introduction 2 Bases 3 Annulations Using N-Heterocyclic Carbenes 3.1 N-Heterocyclic Carbenes (NHCs) 3.2 N-Heterocyclic Carbenes and Base Dual-Activation 4 Phosphines 5 Acids 5.1 Lewis Acids 5.2 Brønsted Acids 6 Boronic Acid Catalysis and Photocatalysis 7 Conclusion
Acute calcific tendinitis of the longus colli: an imaging diagnosis (2008)

Acute calcific retropharyngeal tendinitis or longus colli tendinitis is an uncommon benign condition presenting as acute neck pain. Clinically, it can be misdiagnosed as retropharyngeal abscess, traumatic injury, or infectious spondylitis. The diagnosis is made radiographically by calcification anterior to C1-C2 and prevertebral soft-tissue swelling. We present two cases of this uncommon condition to illustrate the classic findings on CT and MRI. In addition to the typical calcifications anterior to C1-C2, we detected a retropharyngeal effusion in both patients and effusions involving both lateral atlantoaxial joints in one patient, which to our knowledge has not been published in the literature. In both patients, the correct diagnosis was established by prospective review of the radiographic studies. Recognition of the pathognomonic imaging appearance allows for easy diagnosis preventing unnecessary tests and treatment.
The formation of poly(phenylene sulfide)s and the substituent effect in reactions of substituted chlorobenzenes with sulfur (1978)

Abstract The reactions of six substituted chlorobenzenes with sulfur were investigated, and the results were compared with the results of earlier investigations in which sodium carbonate also took part in the reactions. The effect of the amount of chlorine and of the different substituents on the reaction mechanism is discussed. The approximate structures of the cross‐linked substituted poly(phenylene sulfide)s are also given.
Unusual Complications of Transvesical Ureteral Reimplantation (1976)

Four of 8 cases that represent unusual and infrequent complications of the transvesicle Politano-Leadbetter ureteral reimplantation technique are reported. Approximately 90 per cent of ureteral reimplantations for vesicoureteral reflux may be done satisfactorily as a transvesical procedure but combining it with an extravesical approach of the ureter when necessary or indicated will serve to correct any conceivable congenital, acquired or iatrogenic lesion of the lower ureteral segment. The extravesical approach should be used if there is any difficulty in performing the procedure transvesically or if the patient has undergone previous attempts at antireflux operation. Obstructive complications may occur in either the early or late postoperative period. When discovered, surgical correction is usually indicated. We strongly advocate strict adherence to the surgical technique involved and meticulous postoperative followup of these patients.
Physical refining (1983)

Abstract By reviewing current commercial physical refining processes a prospectus is suggested for the future objectives in this field of edible oil processing. The paper reviews widely used physical refining processes for the relatively high free fatty acid (FFA) laurics and palm oil and a commercial operation for physical refining of maize and sunflower oils. In addition, the relatively new departure of physical refining of soybean oil is discussed using data from recent development work. This system is used to demonstrate present trends in the development sector of the industry. Reference to similar work on pretreatment of rapeseed oil is included. The discussion is used to suggest guidelines for design of a flexible physical refining system for application to major oils processed by European refiners. There is still no physical refining process that can handle successfully on a commercial scale all qualities of soybean oil. We must envisage a system of physical refining that is able to deal with the most difficult soybean oil and thus assume it will handle all the less difficult oils.
Effect of short-term physical exercise on foetal heart rate and uterine activity in normal and abnormal pregnancies. (1987)

The response of a short-term submaximal bicycle ergometer test on foetal heart rate (FHR) and on uterine activity was studied in 61 pregnant women between pregnancy weeks 32 and 40. 28 of the women had uncomplicated pregnancies, 13 were hypertensive, 11 were diabetic, and 9 had intrahepatic cholestasis of pregnancy. After exercise, FHR declined in healthy subjects in pregnancy weeks past 35, whereas no significant change was found in such subjects before week 35 of pregnancy. Analysis of variance revealed a difference of FHR between subjects with umcomplicated and pre-eclamptic pregnancies in relation to time (p = 0.021). Exercise induced uterine contractions in hypertensive subjects. Foetal bradycardia was found in 2 healthy, in 2 pre-eclamptic, and in one cholestatic subject. In healthy pregnant women a non-reactive FHR with concomitant reduced FHR variability was found after exercise (P less than 0.01). The FHR variability of patients with pathologic pregnancies was less affected. These results suggest that, after a relatively strenuous short-term exercise, foetuses of mothers with uneventful pregnancies can be at risk of hypoxia in late pregnancy, but the clinical significance remains uncertain.
Experimental Investigation of the EOR Performances of Carbonated Water Injection in Tight Sandstone Oil Reservoirs (2018)

Carbonated water injection (CWI) refers to a method that using carbonated water (CO2 dissolved in water under high pressure) as injected fluid to displace oil in the reservoir. At present there is no report about CWI study in tight oil reservoirs. Based on the reservoir condition and material of a tight formation in Changqing Oilfield, we investigate the core displacement performances of CWI, water alternating Gas (CO2), surfactant injection, and active carbonated water (adding surfactant in carbonated water) injection. Experimental results demonstrate that CWI recovery is 7.2% more than water injection, and 2.7% more than WAG injection; ACWI achieves the best performance with 10% more oil recovery than water injection.
Third-order dispersion control in ultrafast Yb fiber amplifiers (2001)

Generation of 52 fs pulses with an Yb fiber amplifier is demonstrated. The pulse energy is 3 nJ at a repetition rate of 50 MHz. Pulse compression including an anomalous 3rd-order dispersion fiber in conjunction with a simple bulk grating compressor is implemented. Frequency doubling provides an efficient ultrafast pulse source in the green spectral region.
Cardiac magnetic resonance imaging for myocardial perfusion and diastolic function-reference control values for women. (2016)

Angina, heart failure with preserved ejection fraction (HFpEF) and coronary microvascular dysfunction (CMD) in the absence of obstructive coronary artery disease (CAD) are more common in women and are associated with adverse cardiovascular prognosis. Cardiac magnetic resonance imaging (CMRI) is established for assessment of left ventricular (LV) morphology and systolic function and is increasingly used to assess myocardial perfusion and diastolic function. Indeed, stress CMRI allows measurement of myocardial perfusion reserve index (MPRI) using semi-quantitative techniques, and quantification of LV volumetric filling patterns provides valuable insight into LV diastolic function. The utility of these two techniques remains limited, because reference control values for MPRI and LV diastolic function in asymptomatic middle-aged, women have not previously been established. To address this limitation, we recruited twenty women, without clinical cardiovascular disease or cardiovascular risk factors, with normal maximal Bruce protocol exercise treadmill testing. Subjects underwent CMRI (1.5 tesla) using a standardized protocol of adenosine stress and rest perfusion and LV cinematic imaging. Commercially available with automated CMRI segmentation was used for calculation of MPRI, LV filling profiles, and ejection fraction. Mean age was 54±9 years and mean body mass index was 25±4 kg/m(3). The exercise treadmill testing results demonstrated a normotensive group with normal functional capacity and hemodynamic response. We report reference control values for semi-quantitative MPRI as well as measures of LV systolic and diastolic function including ejection fraction, stroke volume, peak filling rate (PFR), PFR adjusted for end-diastolic volume (EDV) and stroke volume, time to PFR, and EDV index. The data herein provide reference values for MPRI and diastolic function in a cohort of healthy, middle-aged of women. These reference values may be used for comparison with a variety of patient populations, including women with CMD and HFpEF.
The direct conversion of impure natural kaolin into pure zeolite catalysts (2011)

The use of kaolin as a silica source in the synthesis of zeolites has been achieved using a novel synthetic approach. The technique reported allows the use of impure kaolin as a starting material to produce pure ZSM-5 zeolite. This is important as it is extremely difficult and time consuming to remove all impurities from natural kaolin. This is also the first report of the direct synthesis of a high silica zeolite from kaolin without the use of an external silica source.
Reinforced glass cantilever beams (2005)

This paper focusses on the main glass beams of an All Transparent Pavilion that has been built and exhibited at Delft University of Technology. The glass beams span a total of 7.2 m and cantilever 1.2 m on both ends. Ordinary annealed float glass layers are adhesively bonded to form full-section beams. These beams are the first of their kind to have ever been applied in practice. The underlying safety concept –to deal with brittle glass failure– shows some analogy with reinforced concrete: the glass beams are reinforced by adding a small stainless steel profile. Before applying three of these beams in the pavilion, a full-scale prototype has been built and tested destructively to validate its structural behaviour. The results show failure starts at reasonable stress levels, but more important, the cracked and failed beam showed a significant residual strength.
Top hat fiber delivered high power sources and thin films photovoltaics scribing (2012)

We have developped laser sources with multiple parallel single mode or multi-mode fiber delivery at 1030 nm and 515 nm. Application to very clean scribing of thin films ITO, CdTe, a-SI or CIGS are presented.
From phase imaging to CNN-based quantitative representation (2022)

We present a CNN-based quantification pipeline for the imaging and analysis of adherent cell cultures. The imaging part features two CNNs dedicated to lens-free microscopy performing accelerated holographic reconstruction and phase unwrapping. The analysis part features CNNs estimating several cellular metrics. These CNNs maps phase image into 2D quantitative representations of cell positions and measurements. The outputs images are processed by a local maxima algorithm to obtain a list of cell measurements. Here, we discuss the performance and limitations of this CNN-based quantification pipeline. The advantage is the fast processing time, i.e. the analysis of ~10.000 cells in 10 seconds.
Plasma Polymerization of Manganese Chloride Tetraphenylporphyrin and Evaluation of the Thin Film (2007)

We have developed a polymer film by plasma polymerizing MnTPPCl and characterized it by various optical and electrical methods and studied its application as a chemical sensor to detect H2O2 and as a bio-sensor to detect glucose. For characterization of the plasma polymer we have used UV-Vis spectroscopy, IR, SEM, AFM, ESCA and cyclic voltammetry. Plasma polymerized MnTPPCl was found to be a promising candidate in the field of bio and chemical sensors.
Thiophen derivatives. Part XXII. Preparation of naphtho[2′,3′:4,5]-thieno[3,2-b][1]benzothiophen and some methyl homologues (1973)

The Friedel–Crafts condensation of thieno[3,2-b][1]benzothiophen with some mono- and di-methyl homologues of benzoyl chloride, and of thieno[3,2-b][1]benzcthiophen-2-carbonyl chloride with m- and p-xylene, afforded a series of ketones which underwent Elbs pyrolysis to furnish naphtho[2′,3′:4,5]thieno[3,2-b][1]benzothiophen and three of its methyl homologues.
Gas exchange and water relations responses to drought of fast- and slow-growing black spruce families (1997)

To determine how different mechanisms of drought tolerance contribute to growth rate under drought, this study compared four full-sib black spruce (Picea mariana (Mill.) B.S.P.) families which differed in growth rate when soil water became limiting, stomatal conductance, photosynthesis, and water relations responses to drought. Repeated drought cycles were imposed by withholding soil water in a nursery and physiological responses were measured near the end of the first and third cycle. The most vigorous family under drought had greater osmotic adjustment and maintained higher rates of net photosynthesis during the first cycle of drought and resumed higher rates of photosynthesis sooner upon stress relief, compared with two slow-growing families. Pressure–volume analysis of drought-stressed shoot tissues indicated that the fast-growing family exhibited a larger degree of elastic enhancement (i.e., decrease in bulk modulus of elasticity), which would explain its higher turgor pressure, compared with the two less vigorous families. However, family differences in gas exchange and water relations largely diminished when seedlings were exposed to repeated cycles of drought. Therefore, fast-growing black spruce families under drought may gain selective growth advantage by a better ability to tolerate, rather than postpone, momentary dehydration. Short-term screening trials could be used to detect drought tolerant genotypes in black spruce. Key words: drought, family variation, photosynthesis, Picea mariana, stomatal conductance, water relations.
Alteration of corneal asphericity in rigid gas permeable contact lens induced warpage. (1994)

We developed the corneal asphericity index (CAI), which indicates the asphericity of the central cornea using the TMS-1 videokeratoscope, and used the CAI to evaluate both normal corneas and corneas with rigid gas permeable (RGP) lens induced warpage. The CAI (mean +/- standard deviation) for the 22 control corneas was 0.33 +/- 0.26, which indicates that the normal central cornea has a prolate shape. The average CAI for the 24 corneas with RGP lens induced warpage was significantly lower (-0.15 +/- 0.36, P = 0.0001). These data suggest that some corneas have abnormal asphericity in the central cornea when warpage occurs with RGP lenses. CAI is useful for the quantitative assessment of asphericity and topographic abnormalities in the central cornea caused by contact lens induced warpage.
Optimal Procurement of VAR Ancillary Service in the Electricity Market Considering Voltage Security (2005)

This paper presents a competitive bidding scheme for procuring VAR service in the electricity market with the consideration of voltage security in normal and post-contingency states. To determine the most beneficial VAR contracts that satisfy the required level of system security and ensure adequate payment for the VAR service, an optimization problem that simultaneously minimizes the total payment of the procured VAR and operating costs in all transition states while maintaining a set of physical constraints including voltage security margin is developed. The global solution of the proposed formulation is obtained using a hybrid genetic algorithms/successive linear programming (GA/SLP) method.
Deep-tissue focal fluorescence imaging with digitally time-reversed ultrasound-encoded light (2012)

Fluorescence imaging is one of the most important research tools in biomedical sciences. However, scattering of light severely impedes imaging of thick biological samples beyond the ballistic regime. Here we directly show focusing and high-resolution fluorescence imaging deep inside biological tissues by digitally time-reversing ultrasound-tagged light with high optical gain (~5×10(5)). We confirm the presence of a time-reversed optical focus along with a diffuse background-a corollary of partial phase conjugation-and develop an approach for dynamic background cancellation. To illustrate the potential of our method, we image complex fluorescent objects and tumour microtissues at an unprecedented depth of 2.5 mm in biological tissues at a lateral resolution of 36 μm×52 μm and an axial resolution of 657 μm. Our results set the stage for a range of deep-tissue imaging applications in biomedical research and medical diagnostics.
Omomyc, a potential Myc dominant negative, enhances Myc-induced apoptosis. (2002)

The Myc basic helix-loop-helix zipper domain determines dimerization with Max and binding to the DNA E-box, both of which play a critical role in Myc regulation of growth, proliferation, tumorigenesis, and apoptosis. The mutant basic helix-loop-helix zipper domain, Omomyc, dimerizes with Myc, sequestering it in complexes unable to bind the E-box, and so acting as a potential dominant negative. Consistent with this, Omomyc reverses Myc-induced cytoskeletal disorganization in C2C12 myoblasts. Surprisingly, however, Omomyc strongly potentiates Myc-induced apoptosis in a manner dependent on Myc expression level. Expression analysis of known Myc target genes indicates that Omomyc inhibits transcriptional activation but enhances repression. These findings suggest that Omomyc can selectively trigger apoptosis in cells overexpressing Myc, possibly through the transcriptional repression of specific genes.
Chemically Activated Covalent Triazine Frameworks with Enhanced Textural Properties for High Capacity Gas Storage (2017)

Chemical activation of porous/nonporous materials to achieve high surface area sorbents with enhanced textural properties is a very promising strategy. The chemical activation using KOH, however, could lead to broad distribution of pores originating from the simultaneous pore deepening and widening pathways. Accordingly, establishing correlation between the chemical/textural properties of starting porous/nonporous materials and various pore formation mechanisms is quite critical to realize superior porosity and gas uptake properties. Here, we show that the chemical and textural properties of starting porous organic polymers, that is, covalent triazine frameworks (CTF), have profound effect on the resulting porosity of the frameworks. The chemical activation of microporous CTF-1 using KOH at 700 °C enabled the preparation of chemically activated CTF-1, caCTF-1-700, which predominantly showed pore deepening, leading to an increased surface area of 2367 m<sup>2</sup> g<sup>-1</sup> and significantly enhanced gas adsorption properties with CO<sub>2</sub> uptake capacities up to 6.0 mmol g<sup>-1</sup> at 1 bar and 1.45 mmol g<sup>-1</sup> at 0.15 bar and 273 K along with a isosteric heats of adsorption (Q<sub>st</sub>) of 30.6 kJ mol<sup>-1</sup>. In addition, a remarkable H<sub>2</sub> uptake capacity of 2.46 and 1.66 wt % at 77 and 87 K, 1 bar along with the Q<sub>st</sub> value of 10.95 kJ mol<sup>-1</sup> at zero coverage was also observed for the caCTF-1-700. Notably, the activation of mesoporous CTF-2 under the same conditions was accompanied by a decrease in its surface area and also in the conversion of mesopores into the micropores, thus leading to a pore deepening/narrowing rather than widening. We attributed this result to the presence of reactive weak spots, triazine moieties, for the chemical activation reaction within the CTF backbone. These results collectively suggest the critical role of chemical and pore characteristics of porous organic polymers in chemical activation to realize solid-sorbents for high capacity gas storage applications.
Stigmatic imaging with a pair of concave gratings (1979)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Eldred F. Tubbs, "Stigmatic imaging with a pair of concave gratings," Appl. Opt. 18, 1298-1299 (1979) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article