gebhart/patrepeval huggingface dataset:
A Study of Wireless Indoor Positioning Based on Joint TDOA and DOA Estimation Using 2-D Matrix Pencil Algorithms and IEEE 802.11ac (2014)

This contribution addresses the problem of highly resolving the propagation time delays and the relative direction of arrivals (DOAs) associated with signals in multipath communication channels for wireless indoor positioning. The recent subspace based algorithms, represented by two-dimensional matrix pencil (2-D MP) algorithms, are applied in a new way to estimate these parameters simultaneously from the measured space channel frequency response (S-CFR) using multiple antennas and wideband orthogonal multicarrier signals. The performance of using spatial multiplexing and orthogonal frequency-division multiplexing (OFDM) systems for wireless positioning are presented. A non-iterative hybrid least square estimator has been presented to estimate the mobile unit (MU) coordinates based on the time difference of arrival (TDOA) and DOA estimates. The proposed estimator solves the problem of the initial guess and that of partitioning. It is a robust estimator against channel fading and low signal-to-noise ratio (SNR). Experimental results using the emerging IEEE 802.11ac standard show that accuracy in the range of 1.5 cm can be achieved for 2-D wireless indoor positioning.
Peptide conformation. 17. cyclo-(L-Pro-L-Pro-D-Pro). Conformational analysis by 270- and 500-MHZ one- and two-dimensional proton NMR spectroscopy (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeptide conformation. 17. cyclo-(L-Pro-L-Pro-D-Pro). Conformational analysis by 270- and 500-MHZ one- and two-dimensional proton NMR spectroscopyHorst Kessler, Wolfgang Bermel, Axel Friedrich, Gerhard Krack, and William E. HullCite this: J. Am. Chem. Soc. 1982, 104, 23, 6297–6304Publication Date (Print):November 1, 1982Publication History Published online1 May 2002Published inissue 1 November 1982https://pubs.acs.org/doi/10.1021/ja00387a025https://doi.org/10.1021/ja00387a025research-articleACS PublicationsRequest reuse permissionsArticle Views138Altmetric-Citations45LEARN 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
Fast multipurpose Monte Carlo simulation for proton therapy using multi‐ and many‐core CPU architectures (2016)

MCsquare exploits the flexibility of CPU architectures to provide a multipurpose MC simulation tool. Optimized code enables the use of accurate MC calculation within a reasonable computation time, adequate for clinical practice. MCsquare also simulates prompt gamma emission and can thus be used also for in vivo range verification.
ANALISIS PENGAWET NATRIUM BENZOAT DAN PEWARNA RHODAMIN B PADA SAUS TOMAT J DARI PASAR TRADISIONAL L KOTA BLITAR (2013)

Dalam penelitian ini telah dilakukan analisis pengawet dan pewarna dalam saus tomat. Produk tersebut adalah Saus Tomat J yang diperoleh dari pasar tradisional L kota Blitar. Hasil analisis menunjukan bahwa sampel tersebut tidak mengandung bahan pewarna Rhodamin B dan mengandung pengawet Natrium Benzoat. Analisis pewarna Rhodamin B dilakukan dengan Kromatografi Lapis Tipis (KLT). Analisis kadar Natrium Benzoat dilakukan dengan menggunakan spektrofotometer UV pada panjang gelombang maksimum 230 nm menunjukkan bahwa sampel J mengandung Natrium Benzoat dengan kadar rata-rata 2,44 g/kg, kandungan natrium benzoat dalam saus tomat J ini tidak sesuai dengan persyaratan Standar Nasional Indonesia (SNI) 01-0222-1995 yaitu batas maksimum penggunaan Natrium Benzoat adalah 1 g/kg.
Fiber optic sensor technology - An opportunity for smart aerospace structures (1988)

Fiber optic sensors provide the opportunity for fabricating materials with internal sensors which can serve as lifetime health monitors, analogous to a central nervous system. The embedded fiber optic sensors can be interrogated by various techniques to measure internal strain, temperature, pressure, acoustic waves and other parameters indicative of structural integrity. Experiments have been conducted with composite samples with embedded sensors to measure strain using optical time domain reflectometry, modal interference and an optical phase locked loop. Fiber optic sensors have been developed to detect acoustic emission and impact damage and have been demonstrated for cure monitoring. These sensors have the potential for lifetime monitoring of structural properties, providing real time nondestructive evaluation.
ABO-INCOMPATIBLE LIVING-DONOR KIDNEY TRANSPLANTATION IN CHILDREN (2001)

We have demonstrated that with adequate pre- and posttransplant management, successful kidney transplantation across the ABO barrier is possible in the pediatric population. "Accommodation" of the allografts occurred within 2 weeks of transplantation. Subsequently, the long-term graft outcome of ABO-incompatible LKT was comparable to that of ABO-compatible LKT.
Electrically tunable singlemode fibre Bragg reflectivefilter (1994)

An electrically tunable singlemode fibre Bragg reflective filter (FBR) is demonstrated for the first time by using a large amount of magnetostrictive material in which the fibre is embedded and side-polished. With a reflection bandwidth of ~1.5 nm, the measured tuning range of the FBR filter is 1.3 nm.
A Performance Review of 3D TOF Vision Systems in Comparison to Stereo Vision Systems (2008)

In this chapter we compared conventional stereo vision systems with time-of-flight vision system and highlighted the advantages and disadvantages of both systems. The new PMD technology represents a TOF vision system with many advantages in comparison to conventional stereo vision systems especially in the automotive industry. The equations needed for the design of such a system are derived and demonstrate the simplicity of the
Crosslinks between ribosomal proteins of 30S subunits in 70S tight couples and in 30S subunits (1983)

Ribosome 70S tight couples and 30S subunits derived from them were modified with 2-iminothiolane under conditions where about two sulfhydryl groups per protein were added to the ribosomal particles. The 70S and 30S particles were not treated with elevated concentrations of NH4Cl, in contrast to those used in earlier studies. The modified particles were oxidized to promote disulfide bond formation. Proteins were extracted from the cross-linked particles by using conditions to preclude disulfide interchange. Disulfide-linked protein complexes were fractionated on the basis of charge by electrophoresis in polyacrylamide/urea gels at pH 5.5. The proteins from sequential slices of the urea gels were analyzed by two-dimensional diagonal polyacrylamide/sodium dodecyl sulfate gel electrophoresis. Final identification of proteins in cross-linked complexes was made by radioiodination of the proteins, followed by two-dimensional polyacrylamide/urea gel electrophoresis. Attention was focused on cross-links between 30S proteins. We report the identification of 27 cross-linked dimers and 2 trimers of 30S proteins, all but one of which were found in both 70S ribosomes and free 30S subunits in similar yield. Seven of the cross-links, S3-S13, S13-S21, S14-S19, S7-S12, S9-S13, S11-S21, and S6-S18-S21, have not been reported previously when 2-iminothiolane was used. Cross-links S3-S13, S13-S21, S7-S12, S11-S21, and S6-S18-S21 are reported for the first time. The identification of the seven new cross-links is illustrated and discussed in detail. Ten of the dimers reported in the earlier studies of Sommer & Traut (1976) [Sommer, A., & Traut, R. R. (1976) J. Mol. Biol. 106, 995-1015], using 30S subunits treated with high salt concentrations, were not found in the experiments reported here.
Shape Optimal Design for Elastic Members of Strain-Gaged Pressure Transducers (2002)

The measurement sensitivity of a strain-gaged pressure transducer depends mainly on the magnitude of strain in the elastic member. One of the main tasks in designing a transducer of this type is, therefore, to maximize the strain under a full-rated pressure. In this study, several kinds of elastic members appropriate to different pressure ranges are designed, analyzed, and optimized by using the finite element technique in conjunction with a shape optimal design procedure. Measurement sensitivities in terms of the voltage outputs of the bridge circuits composed of strain gages bonded onto locations of maximum strains on these members are calculated. Conceptual designs associated with these various kinds of elastic members are also proposed.
The Bacterial CRISPR/Cas System as Analog of the Mammalian Adaptive Immune System (2012)

Bacteria, like mammals, have to constantly defend themselves from viral attack. Like mammals, they use both innate and adaptive defense mechanisms. In this point of view we highlight the commonalities between defense systems of bacteria and mammals. Our focus is on the recently discovered bacterial adaptive immune system, the clustered regularly interspaced short palindromic repeats (CRISPR) and their associated proteins (Cas). We suggest that fundamental aspects of CRISPR/Cas immunity may be viewed in light of the vast accumulated knowledge on the mammalian immune system, and propose that further insights will be revealed by thorough comparison between the systems.
Postharvest Application of Methyl Jasmonate for Improving Quality Retention of<i>Agaricus bisporus</i>Fruit Bodies (2012)

The influence of methyl jasmonate (MeJA) on postharvest quality and enzyme activities, gene expression level, and the functional component content linked to postharvest deterioration in Agaricus bisporus (J.E. Lange) Imbach fruit bodies was investigated. Freshly harvested fruit bodies were treated with 0 (control), 10 and 100 μM MeJA vapor at 20 °C for 12 h and then stored at 10 °C for up to 7 days. The results indicated that treatments with 100 μM MeJA vapor maintained a high level of soluble protein and total sugar, delayed browning, promoted the accumulation of phenolics and flavonoids, and inhibited the increase of respiratory rate and membrane leakage. Furthermore, 100 μM MeJA inhibited the activities of polyphenoloxidase, increased the antioxidant enzymes activities of catalase and superoxide dismutase, and lowered relative expression levels of three genes encoding polyphenol oxidase (AbPPO1, AbPPO2, and AbPPO3) throughout the storage period. Comparatively, 10 μM MeJA also had a clear beneficial effect on postharvest mushroom quality maintenance but was not as effective as 100 μM MeJA treatment. These findings suggest that application of MeJA could have potential in maintaining the quality of harvested A. bisporus fruit bodies.
Urinary macromolecular substances as natural inhibitors of calcium oxalate crystal aggregation. (1981)

We studied the inhibitory effect of urinary macromolecular substances (UMM), more than 10,000 mol. wt., on aggregation of calcium oxalate crystals in a crystal-seed system and a non-crystal-seed system. In both assay systems, UMM from non-stone-farmers showed a marked inhibitory activity on crystal aggregation, whereas UMM from recurrent stone-formers showed a weak inhibitory activity. The distinction between the two types of UMM was greater in the non-crystal-seed system. The macromolecular inhibitors seemed to be composed of proteins or protein-complexes inasmuch as approximately 70 to 90 per cent of the macromolecular inhibitory activity was destroyed by protein digestion with pronase. Urinary acid glycosaminoglycans, which have been considered possible inhibitors, played a small role in the inhibition of crystal aggregation.
ASTM INFLATABLE RESTRAINT STANDARDS. TECHNOLOGY THAT IS MORE THAN JUST HOT AIR (1991)

This article discusses and explains the standards for and functional mechanism of inflatable air bag systems for automobiles. Topics covered include: Active versus Passive Restraints; ASTM Participation in Passive Restraints Technology; D13.20 Task Group Activities; Fabric Physical Testing; Fabric Environmental; Fabric Grading; Assembly Physical Properties; Assembly Seam Properties and Assembly Environmental. An additional half-page brief explains the individual components of a typical air bag system and how they work.
Measurement of Aqueous Henry's Law Constants for Oxygenates and Aromatics Found in Gasolines by the Static Headspace Method (2003)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionMeasurement of Aqueous Henry's Law Constants for Oxygenates and Aromatics Found in Gasolines by the Static Headspace MethodMichael E. Miller and James D. StuartCite this: Anal. Chem. 2003, 75, 4, 1037Publication Date (Web):January 21, 2003Publication History Published online21 January 2003Published inissue 1 February 2003https://pubs.acs.org/doi/10.1021/ac034002ohttps://doi.org/10.1021/ac034002ocorrectionACS PublicationsCopyright © 2003 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views275Altmetric-Citations2LEARN 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 PDF (9 KB) Get e-Alertsclose Get e-Alerts
1-Deoxynojirimycin hydrochloride (1994)

The structure of the hydrochloride salt of 1-deoxynojirimycin [(1R,3R,4R,5S)-3,4,5-trihydroxy-2-(hydroxymethyl)piperidinium chloride, C 6 H 14 NO 4 + .Cl - ] is reported. The cation has an almost undistorted 4 C 1 conformation. The crystal structure is built up from alternating layers of cations and anions interconnected by a threedimensional network of hydrogen bonds. Each chloride ion is coordinated through four hydrogen bonds and there are also two intercationic hydrogen bonds
[Advances in the clinical laboratory automation system of Akita University Hospital]. (2000)

Abstract Clinical laboratory automation, which was widely discussed in the 1960's, was developed in late he 1970's. The computerized automatic analyzing system for clinical laboratories spread nationwide in the 1980's. Akita University Hospital was established in 1971. We have been making efforts to establish the automated clinical laboratory system. The hematological and clinical chemistry divisions were automated in 1981. In 1988, in order to establish a fully automated clinical laboratory, we introduced sample-conveying systems in each division including hematological, clinical chemistry, urinalysis, serological and immunological divisions. In 1998, we connected the sample-conveying systems which had been separately established in each division to create a fully automated clinical laboratory with an integrated sample-conveying system.
The high temperature thermoelectric performances of Zr0.5Hf0.5Ni0.8Pd0.2Sn0.99Sb0.01 alloy with nanophase inclusions (2006)

The Zr0.5Hf0.5Ni0.8Pd0.2Sn0.99Sb0.01∕ZrO2 nanocomposites have been prepared by spark plasma sintering technique. The thermoelectric properties were measured in the temperature range of 300–900K. Thermal conductivity for the nanocomposites is considerably reduced, because the nanophase scatters the thermal phonons which transport most of the heat in the ZrNiSn-based alloy. Seebeck coefficient for the nanocomposites is enhanced due to the potential barrier scattering. The dimensionless figure of merit ZT is improved, with ZT≈0.75 at 800K for the samples containing 9vol% ZrO2 nanoinclusions. The results obtained suggest that considerable improvements in the thermoelectric figure of merit may be obtainable by inducing appropriate nanoinclusions into the matrix.
Cetuximab and Irinotecan Interact Synergistically to Inhibit the Growth of Orthotopic Anaplastic Thyroid Carcinoma Xenografts in Nude Mice (2006)

Combination therapy with cetuximab/irinotecan inhibits the growth and progression of orthotopic ATC xenografts in nude mice. Given the lack of curative options for patients with ATC, combination therapy with cetuximab and irinotecan treatment warrants further study.
Type B Hepatitis after Needle-Stick Exposure: Prevention with Hepatitis B Immune Globulin (1978)

Hepatitis B immune globulin (HBIG) and immune serum globulin (ISG) were examined in a randomized, double-blind trial to assess their relative efficacies in preventing type B hepatitis after needle-stick exposure to hepatitis B surface antigen (HBsAG)-positive donors. Clinical hepatitis developed in 1.4% of HBIG and in 5.9% of ISG recipients (P = 0.016), and seroconversion (anti-HBs) occurred in 5.6% and 20.7% of them respectively (P less than 0.001). Mild and transient side-effects were noted in 3.0% of ISG and in 3.2% of HBIG recipients. Available donor sera were examined for DNA polymerase (DNAP) and e antigen and antibody (HBeAg; anti-HBE). Both DNAP and HBeAg showed a highly statistically significant correlation with the infectivity of HBsAg-positive donors. Hepatitis B immune globulin remained significantly superior to ISG in preventing type B hepatitis even when the analysis was confined to these two high-risk subgroups. The efficacy of ISG in preventing type B hepatitis cannot be ascertained because a true placebo group was not included.
The <i>pam1</i> Gene Is Required for Meiotic Bouquet Formation and Efficient Homologous Synapsis in Maize (<i>Zea mays</i> L.) (2002)

The clustering of telomeres on the nuclear envelope (NE) during meiotic prophase to form the bouquet arrangement of chromosomes may facilitate homologous chromosome synapsis. The pam1 (plural abnormalities of meiosis 1) gene is the first maize gene that appears to be required for telomere clustering, and homologous synapsis is impaired in pam1. Telomere clustering on the NE is arrested or delayed at an intermediate stage in pam1. Telomeres associate with the NE during the leptotene-zygotene transition but cluster slowly if at all as meiosis proceeds. Intermediate stages in telomere clustering including miniclusters are observed in pam1 but not in wild-type meiocytes. The tight bouquet normally seen at zygotene is a rare event. In contrast, the polarization of centromeres vs. telomeres in the nucleus at the leptotene-zygotene transition is the same in mutant and wild-type cells. Defects in homologous chromosome synapsis include incomplete synapsis, nonhomologous synapsis, and unresolved interlocks. However, the number of RAD51 foci on chromosomes in pam1 is similar to that of wild type. We suggest that the defects in homologous synapsis and the retardation of prophase I arise from the irregularity of telomere clustering and propose that pam1 is involved in the control of bouquet formation and downstream meiotic prophase I events.
The O 2 object manager: an overview (1989)

is the Object-Oriented Database System being developed at Alta'ir. The 02 Object Manager is the layer of the system concerned with complex object ac- cess and manipulation, transaction management, per- sistence and disk management., and distribution in the server/workstation configuration. This paper describes the main choices made in the design of the Object Man- ager, and presents its overall architecture.
Java 2 Developer Exam Cram 2 (Exam Cram CX-310-252A and CX-310-027) (2003)

Your resource to passing the Java 2 Developer Certification Exam!Join the ranks of readers who have trusted Exam 2 to their certification preparation needs! The Java 2 Developer Exam 2 is focused on what you need to know to pass the Java 2 Developer exam. The Exam 2 Method of Study provides you with a concise method to learn the exam topics. The book includes tips, exam notes, acronyms and memory joggers in order to help you pass the exam.Included in the Java 2 Developer Exam 2 : A tear-out Cram Sheet for last minute test preparation. Covers both exams - the SCJD Programming Exam and the SCJD Essay Exam. The PrepLogic Practice Tests, test engine to simulate the testing environment and test your knowledge.Trust in the series that has helped many others achieve certification success - Exam 2.
A novel highly acidic sulfonic functionalized SBA-1 cubic mesoporous catalyst and its application in the esterification of palmitic acid (2010)

Propylsulfonic acid functionalized cubic mesoporous silica was fabricated through in situ oxidization of mercaptopropyl groups with H2O2 during co-condensation of tetraethyl orthosilicate and 3-mercaptopropyl trimethoxysilane under strong acidic conditions. The materials obtained with 5–20 mol % loadings of sulfonic acid groups had surface areas of up to 1300 m 2 /g and pore sizes of ca. 2.5 nm. The catalytic activity of this material was investigated: tests were performed on the esterification of palmitic acid being a model compound in the process of biodiesel production. Methyl ester yield on this new nanoporous catalyst is very remarkable during a mild liquid phase reaction.
Transition state stabilization by the ‘high’ motif of class I aminoacyl-tRNA synthetases: the case of<i>Escherichia coli</i>methionyl-tRNA synthetase (1995)

Methionyl-tRNA synthetase belongs to the class I aminoacyl-tRNA synthetase family characterized both by a catalytic center built around a Rossmann Fold and by the presence of the two peptidic marker sequences HIGH and KMSKS. In this study, the role of the 21HLGH24 motif of Escherichia coli methionyl-tRNA synthetase was studied in a systematic fashion by site-directed mutagenesis. It is shown that the two histidine residues play a crucial role in the catalysis of the methionyl adenylate formation by participating in the stabilisation of the ATP phosphate chain during the transition state. Moreover, the results suggest the involvement of the epsilon-imino group of histidine 21 and of the delta-imino group of histidine 24. Notably, the substitution of either the leucine or the glycine residue of the HLGH motif by alanine had no effect on the catalysis. From the data and from other studies with class I aminoacyl-tRNA synthetases, concomitant positive contributions of the HIGH and KMSKS sequences to reach the transition state of aminoacyl adenylate formation can be envisaged.
ChemInform Abstract: Recent Advances in the Selective Formation of The C‐F Bond (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.