Relevant bibliographies by topics / Analog samples / Journal articles

Journal articles on the topic 'Analog samples'

To see the other types of publications on this topic, follow the link: Analog samples.
Author: Grafiati
Published: 8 June 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Analog samples.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Francis, R. D., and G. V. Stanley. "Selecting Student Analog Samples." Psychological Reports 68, no. 3 (June 1991): 1008–10. http://dx.doi.org/10.2466/pr0.1991.68.3.1008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Cho, Youngjae, Junhwan Bae, Jiseon Lee, and Mi-Jung Choi. "Storage Stability of Meat Analogs Supplemented with Vegetable Oils." Foods 12, no. 19 (September 27, 2023): 3586. http://dx.doi.org/10.3390/foods12193586.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The addition of various oils to meat analog has been an important topic to improving its juiciness and tenderness. However, this causes a concern about oil leaching from the meat analog during long-term storage. Here, we aimed to assess the storage stability of vegetable-oil-supplemented meat analogs and analyze the effects of temperature and storage period on their physiochemical characteristics. The meat analogs were prepared by adding 30 g castor oil, orange oil, palm oil, shortening, or margarine vegetable oil based on 100 g of textured vegetable protein. They were then stored at −18 or −60 °C for 6 months and analyzed at one-month intervals. The meat analog supplemented with orange oil had the highest water content (64.85%; 66.07%), hardness (35.48 N; 34.05 N), and DPPH-radical-scavenging activity (30.01%; 30.87%) under −18 and −60 °C, respectively, as well as the highest liquid-holding capacity in different conditions. During frozen storage, temperature barely affected the meat quality. The storage stability of all meat analog samples was maintained for 6 months, although the quality was slightly reduced with an increase in storage duration. Coliform group bacteria were not detected regardless of the storage condition. In conclusion, all results supposed that orange oil can be a promising candidate for improving the juiciness and tenderness of meat analogs, and the quality of samples was maintained for at least 6 months under frozen storage. The findings of this study are relevant to the development and promotion of meat analog as an alternative to animal meat.
3

Jannatifar, Rahil, Hamid Piroozmanesh, and Leila Naserpoor. "Supplementation of Freezing Media with Cyclic Adenosine Monophosphate Analog and Isobutylmethylxanthine on Sperm Quality." Research in Molecular Medicine 8, no. 4 (October 26, 2020): 201–8. http://dx.doi.org/10.32598/rmm.8.4.6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Background: This study aimed to explore whether the addition of a cyclic adenosine monophosphate (cAMP) analog and isobutylmethylxanthine (IBMX) in freezing media improved sperm quality and what role cAMP has in this recovery. Materials and methods: ach semen sample was cryopreserved into four groups: fresh semen sample, as a control group, freezing medium + 2.5 mM cAMP analog and 0.2 mM IBMX, freezing medium + 12.5 mM cAMP analog and 0.2 mM IBMX, and freezing medium + 25 mM cAMP analog and 0.2 mM IBMX. Sperm parameters after post-thaw were analyzed according to WHO instruction (2010). Viability, acrosome reaction, and DNA damage levels of the samples were evaluated. Results: Our results indicated that the effective concentrations of 12.5 and 25 mM cAMP analog and 0.2 mM IBMX significantly improved the total motility, progressive motility, and viability of the frozen-thawed (P<0.05). However, non-progressive motility and immotile were significantly reduced in the 12.5 and 25 mM cAMP analogs and 0.2 mM IBMX groups after thawing (P<0.05). During freezing the spermatozoa, the high concentration of the cAMP analog increased acrosome reaction after thawing in the 25 mM and 0.2 mM IBMX treated samples (P<0.05). DNA fragmentation in 25 mM cAMP analog and 0.2 mM (IBMX) supplementation was significantly lower compared to the other groups (P<0.05). Conclusions: Our findings revealed that in vitro cAMP analog and IBMX supplementation in freezing media play an important role in preventing cryodamage by maintaining the sperm functional parameters.
4

Unsal, Ayse, and Raymond Knopp. "Transmission of Sporadic Analog Samples Over Wireless Channels." IEEE Transactions on Communications 64, no. 1 (January 2016): 354–64. http://dx.doi.org/10.1109/tcomm.2015.2502948.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Sari, Berliana Luckyta, Eko Nurcahya Dewi, and Ahmad Suheli Fahmi. "Pengaruh Penambahan Spirulina platensis sebagai Sumber Protein Nabati pada Daging Analog bagi Vegetarian." Jurnal Mutu Pangan : Indonesian Journal of Food Quality 9, no. 2 (October 31, 2022): 76–83. http://dx.doi.org/10.29244/jmpi.2022.9.2.76.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Spirulina platensis is a vegetable protein source that may improve the quality of food product. The objective of this study was to determine the effect of addition S. platensis on analog meat at concentrations of 0, 10, 20, and 30% and to determine the best concentration of addition S. platensis on meat analogs preferred by the panelists. The processing of meat analogs used steaming method at 100°C for 30 minutes. The researched method applied a completely randomized design. The analog meat samples were analyzed in terms of protein content, protein digestibility, moisture content, texture, color, and hedonic tests. The highest protein content and protein digestibility was at concentrations of S. platensis 30%, 32.24 and 62%. The moisture content obtained at 30% concentration was 54.70%, and the texture at 30% concentration was 1.53 N which resembles the texture of animal meat. Analog meat preferred by panelist was at concentration of 20% which had a texture preference of score of 6.33; aroma 5.00 and taste 6.33 from the average 30 panelist score and had a confidence interval value of 5.56<µ<6.22.
6

Tuzcu, Hazal, Ibrahim Aslan, and Mutay Aslan. "The Effect of High-Dose Insulin Analog Initiation Therapy on Lipid Peroxidation Products and Oxidative Stress Markers in Type 2 Diabetic Patients." Oxidative Medicine and Cellular Longevity 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/513742.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Effect of high-dose insulin analog initiation therapy was evaluated on lipid peroxidation and oxidative stress markers in type 2 diabetes mellitus (T2DM). Twenty-four T2DM patients with HbA1c levels above 10% despite ongoing therapy with sulphonylurea and metformin were selected. Former treatment regimen was continued for the first day followed by substitution of sulphonylurea therapy with different insulin analogs. Glycemic profiles were determined over 72 hours by Continuous Glucose Monitoring System (CGMS), and blood/urine samples were collected at 24 and 72 hours. Insulin analog plus metformin treatment significantly reduced glucose variability. Plasma and urine lipid peroxidation were markedly decreased following insulin analog plus metformin treatment. No correlation existed between glucose variability and levels of plasma and urine oxidative stress markers. Likewise, changes in mean blood glucose from baseline to end point showed no significant correlation with changes in markers of oxidative stress. On the contrary, decreased levels of oxidative stress markers following treatment with insulin analogs were significantly correlated with mean blood glucose levels. In conclusion, insulin plus metformin resulted in a significant reduction in oxidative stress markers compared with oral hypoglycemic agents alone. Data from this study suggests that insulin analogs irrespective of changes in blood glucose exert inhibitory effects on free radical formation.
7

Novikasari, Nur Annisa Metya, Anita Kurnia Wati, Nur Khikmah, and Iffah Muflihati. "EFFECT OF PEANUT TYPES ON PATTIES ANALOGUE CHARACTERISTICS." Journal of Agri-Food Science and Technology 1, no. 1 (April 8, 2020): 1. http://dx.doi.org/10.12928/jafost.v1i1.1475.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Patties analogs are products made from vegetable protein that is not from meat but resembles the nature of meat. Patties analog has several features, including being made or formulated so that the nutritional value is higher than the original meat. The purpose of the study was to determine the process of making patties analog, to determine the formulation of mung bean flour, kidney bean flour and peanut flour combined with wheat flour, to produce the best patties analog. Moreover, it is to determine the yield’s physical, chemical, and sensory of patties analog produced. The main ingredients used are kidney bean flour, mung bean flour, and peanut flour, as well as additional ingredients such as oyster mushrooms, high protein wheat flour, and seasonings with the same percentage. Based on the analysis of the water content of the three samples, the highest value is the water content of kidney bean flour patties (25.88%). The highest ash content is indicated by mung bean flour patties which is equal to 0.08%. The highest fat content obtained by peanut patties with a value of 0.4% and the highest WHC is found in peanut patties that is 2.9867%. Meanwhile, based on the organoleptic test, the most preferred patty analog by panelists is a patty made of mung bean flour.
8

Van Nest, Jordan, Ferah Munshi, Charlotte Christensen, Alyson M. Brooks, Michael Tremmel, and Thomas R. Quinn. "The Role of Mass and Environment on Satellite Distributions around Milky Way Analogs in the Romulus25 Simulation." Astrophysical Journal 956, no. 2 (October 1, 2023): 96. http://dx.doi.org/10.3847/1538-4357/acf861.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract We study satellite counts and quenched fractions for satellites of Milky Way analogs in Romulus25, a large-volume cosmological hydrodynamic simulation. Depending on the definition of a Milky Way analog, we have between 66 and 97 Milky Way analogs in Romulus25, a 25 Mpc per-side uniform volume simulation. We use these analogs to quantify the effect of environment and host properties on satellite populations. We find that the number of satellites hosted by a Milky Way analog increases predominantly with host stellar mass, while environment, as measured by the distance to a Milky Way–mass or larger halo, may have a notable impact in high isolation. Similarly, we find that the satellite quenched fraction for our analogs also increases with host stellar mass, and potentially in higher-density environments. These results are robust for analogs within 3 Mpc of another Milky Way–mass or larger halo, the environmental parameter space where the bulk of our sample resides. We place these results in the context of observations through comparisons to the Exploration of Local VolumE Satellites and Satellites Around Galactic Analogs surveys. Our results are robust to changes in Milky Way analog selection criteria, including those that mimic observations. Finally, as our samples naturally include Milky Way–Andromeda pairs, we examine quenched fractions in pairs versus isolated systems. We find potential evidence, though not conclusive, that pairs, defined as being within 1 Mpc of another Milky Way–mass or larger halo, may have higher satellite quenched fractions.
9

Allen, C. "Sterilized mars rock and soil analog samples available for analysis." Eos, Transactions American Geophysical Union 79, no. 20 (1998): 241. http://dx.doi.org/10.1029/98eo00178.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Huang, Liang, and Yuan Liao. "Fault Samples Acquisition and Fault Feature Verification of Analog Filters." Chinese Journal of Electronics 26, no. 1 (January 1, 2017): 122–27. http://dx.doi.org/10.1049/cje.2016.06.015.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Ji, Chuanyi, Robert R. Snapp, and Demetri Psaltis. "Generalizing Smoothness Constraints from Discrete Samples." Neural Computation 2, no. 2 (June 1990): 188–97. http://dx.doi.org/10.1162/neco.1990.2.2.188.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
We study how certain smoothness constraints, for example, piecewise continuity, can be generalized from a discrete set of analog-valued data, by modifying the error backpropagation, learning algorithm. Numerical simulations demonstrate that by imposing two heuristic objectives — (1) reducing the number of hidden units, and (2) minimizing the magnitudes of the weights in the network — during the learning process, one obtains a network with a response function that smoothly interpolates between the training data.
12

Huntley, Brian. "Dissimilarity Mapping Between Fossil and Contemporary Pollen Spectra in Europe for the Past 13,000 Years." Quaternary Research 33, no. 3 (May 1990): 360–76. http://dx.doi.org/10.1016/0033-5894(90)90062-p.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
AbstractThe degree of analogy between fossil and contemporary pollen spectra in Europe has been investigated using the chord-distance dissimilarity measure. No-analog pollen spectra represent vegetation without a modern analog and hence, by inference, represent macroclimatic conditions different from any occurring in the region today. Such spectra have minimum chord distances that exceed a threshold value assessed using contemporary samples from the same and different vegetation u units. Contoured maps of minimum chord distance portray the changing patterns of analogous and no-analog pollen spectra, and hence vegetation units, since 13,000 yr B.P. No-analog vegetation units have been extensive in some regions for much of the Holocene, persisting as recently as 1000 years ago in many areas. The chord-distance measure has also been used to explore the patterns, extent, and rates of change in European pollen spectra since 13,000 yr B.P. Pollen spectra changed rapidly during late-glacial and early Holocene times and during the last millennium. Paleoclimatic changes have brought about the major changes in the Holocene paleovegetation of Europe. Human impact upon European vegetation has obscured neither the contemporary relationship between pollen spectra and vegetation nor the climatically determined long-term changes of vegetation across the continent since 13,000 yr B.P.
13

Permatasari, Galuh Wening, Didik Huswo Utomo, Dian Laila Purwaningroom, and Djoko Soeatmadji. "The correlation of structural and binding affinity of insulin analog to the onset of action for diabetic therapy." Health Science Journal of Indonesia 12, no. 1 (June 29, 2021): 47–55. http://dx.doi.org/10.22435/hsji.v12i1.4783.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Background: These days, insulin analog production has been improved and becoming popular. The advantages of insulin analog have been extensively reviewed in terms of effectiveness compared to human insulin. Each of the insulin analog industries has claimed their safety and efficacy based on in vivo and in vitro to overcome type 2 diabetes. Hereby, we report on the identification of highly effective analog-based insulin on structure and binding affinity computationally, to confirm its potential and give a broader point of view to insulin analog users. Methods: Five types of insulin analogs, Aspart, Glargine, Detemir, Lispro and Degludec, were analyzed. We grouped and clustered the sequence by alignment to identify the closeness and sequence similarity between samples, continued by superimposing analysis and undertaking binding affinity identification utilizing of a docking analysis approach. Results: Lispro had the least sequence similarity to other types, close to Aspart (96%) and Glargine (90.5%), while Detemir and Degludec showed 100% similarity we decide to only use Degludec for the next analysis. Furthermore, Lispro, Aspart, and Glargine exhibited structural similarity strengthened by the lack of significant difference in the RMSD data. Importantly, Aspart had the highest binding affinity score (-66.1 +/- 7.1 Kcal/mol) in the docking analysis to the insulin receptor (INSR) and similar binding site areas to human insulin. Conclusion: Our finding revealed that the strength of insulin analogs towards insulin receptors is identic with its rapid mechanism in the human body. Keywords: computation, docking, insulin analog, sequence similarity, structure Abstrak Latar belakang: Saat ini, produksi analog insulin meningkat dan menjadi popular. Keuntungan analog insulin telah ditinjau secara ekstensif dalam hal efektivitas dibandingkan dengan insulin manusia. Masing-masing industri analog insulin mengklaim keamanan dan kemanjurannya berdasarkan in vivo dan in vitro untuk mengatasi diabetes tipe 2. Kami melaporkan identifikasi insulin analog yang efektif berdasarkan struktur dan afinitas pengikatan secara komputasi, untuk mengonfirmasi potensi serta memberikan sudut pandang yang lebih luas kepada pengguna insulin analog. Metode: Lima jenis analog insulin, Aspart, Glargine, Detemir, Lispro, dan Degludec, dianalisis. Kami membandingkan dan mengelompokkan urutan tersebut dengan penyelarasan untuk mengidentifikasi kedekatan dan kesamaan urutan antar sampel dilanjutkan dengan superimposing analysis dan melakukan identifikasi binding affinity menggunakan pendekatan analisis docking. Hasil: Lispro memiliki kemiripan sekuen paling rendah dengan jenis lainnya, mendekati Aspart (96%) dan glargine (90,5%), sedangkan Determir dan Degludec menunjukkan kemiripan 100% sehingga kami menggunakan Degludec untuk analisis selanjutnya. Selain itu, Lispro, Aspart, dan Glargine menunjukkan kesamaan struktural yang diperkuat oleh rendahnya nilai signifikansi pada data RMSD. Perlu digarisbawahi bahwa Aspart memiliki skor afinitas pengikatan tertinggi (-66.1 +/- 7.1 kkal / mol) dalam analisis docking ke reseptor insulin (INSR) dan memiliki area pengikatan yang serupa dengan insulin manusia. Kesimpulan: Penemuan kami mengungkapkan bahwa kekuatan insulin analog sejalan dengan laju mekanismenya di dalam tubuh manusia Kata kunci: komputasi, docking, insulin analog, kemiripan sekuen, struktur
14

Camara, Rodrigo, Camila Santos da Silva, Gilsonley Lopes dos Santos, Gabriel Santos Aguiar, Marcos Gervasio Gervasio Pereira, Cristiane Figueira Silva, and Eliane Maria Ribeiro Silva. "PHYSICAL, CHEMICAL, AND BIOLOGICAL SOIL ATTRIBUTES UNDER ANALOG AGROFORESTRY SYSTEM AND PASTURE SITES." FLORESTA 50, no. 1 (December 20, 2019): 887. http://dx.doi.org/10.5380/rf.v50i1.57476.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Analog agroforestry system uses native tree species to improve soil conditions and the microclimate of degraded areas. This study aimed to assess the impact of analog agroforestry on physical, chemical, and biological soil attributes. We tested the hypothesis that some of these attributes can be used as indicators of soil quality improvement compared to a managed pasture area. Two experimental sites were selected, an analog agroforestry site and a pasture site. In October 2016 (end of the dry season), soil samples were collected from the 0–5 and 5–10 cm depths and the soil fauna community was sampled using pitfall traps. The analog agroforestry system led to increased total abundance, total richness, mean richness, evenness, and diversity of the soil fauna community as well as higher gravimetric soil moisture, sand content, pH, calcium, magnesium, and sum of exchangeable bases, which are good indicators of soil quality. Adults of Coleoptera, Diptera, Gastropoda, Hymenoptera, Isopoda, Lepidoptera, Poduromorpha, Symphypleona, Pseudoscorpionida, Lepidoptera and larvae of Coleoptera, Diptera, Lepidoptera, and Neuroptera were the most abundant taxonomic groups in the analog agroforestry system.
15

Thompson, Michelle, Madison McGlaun, Kathleen Vander Kaaden, Mark Loeffler, and Francis McCubbin. "Coordinated Analysis of Mercury Analog Samples Subjected to Simulated Space Weathering." Microscopy and Microanalysis 26, S2 (July 30, 2020): 2594–97. http://dx.doi.org/10.1017/s1431927620022138.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Smith, Kathryn A., Stephen D. Merrigan, and Kamisha L. Johnson-Davis. "Selecting a Structural Analog as an Internal Standard for the Quantification of 6-Methylmercaptopurine by LC-MS/MS." Journal of Applied Laboratory Medicine 3, no. 3 (November 1, 2018): 384–96. http://dx.doi.org/10.1373/jalm.2018.026187.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract Background When choosing an analog internal standard (IS) in a quantitative LC-MS/MS assay, careful selection and thorough verification are important for developing an accurate quantitative assay. The IS is a critical component in quantitative mass spectrometry because it is used to normalize results by compensating for variations in sample preparation and instrument performance. Here we present the results of our investigation in the selection process for a structural analog IS (SA-IS) to be used in the quantification of 6-methylmercaptopurine (6-MMP) in cytolysed red blood cell (RBC). Methods A cocktail solution of 9 SA-ISs including the isotopically labeled structural isomer and the 6-MMP stable isotope-labeled IS (SIL-IS) was spiked into cytolysed RBC controls and patient samples. Linearity, accuracy, sensitivity, precision, run stability, method comparison, and reinjection reproducibility experiments were performed. Ion suppression was also assessed by T-infusing the cocktail solution. Results All analogs were linear from 100 to 1200 ng/mL 6-MMP with acceptable precision and sensitivity by use of a spiked blank lysate. Method comparison plots of 6-MMP concentrations in patient samples had excellent agreement for 2 of the SA-ISs (i.e., the isotopically labeled structural isomer and an SA-IS with an added methyl group) when compared to the SIL-IS. Halogen-substituted analogs (i.e., Cl and Br) also met the criteria as an acceptable IS. However, 2 of the selected SA-ISs having substituted amine moieties showed unacceptable performance, with ≥15% bias when compared to the SIL-IS. Conclusion There are many parameters to consider when determining if an analog will be a good IS choice, and the approaches highlighted in this article can be applied to the selection of SA-IS in the development of other LC-MS/MS assays.
17

Cunningham, C., J. Nemunaitis, N. Senzer, D. Richards, S. Vukelja, R. Abichandani, and M. Vasconcelles. "Effect of clofarabine on lymphocyte populations in patients treated for solid tumors." Journal of Clinical Oncology 25, no. 18_suppl (June 20, 2007): 21134. http://dx.doi.org/10.1200/jco.2007.25.18_suppl.21134.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
21134 Background: Clofarabine (CLOLAR®) is a next-generation nucleoside analog designed as a hybrid molecule to improve the efficacy and minimize the extramedullary toxicity of other nucleoside analogs. Such analogs are known to have a variety of effects on both humoral and T-cell immune function. Fludarabine, the drug most closely related to clofarabine, causes major alterations in the CD4:CD8 lymphocyte ratios, associated with marked increases in the rate of opportunistic infections. In contrast, gemcitabine has a selective detrimental effect on the B-lymphocyte subset. Therefore, while conducting a phase I dose-finding trial of clofarabine in patients with solid tumors, we investigated its effects on lymphocyte sub-populations. Methods: A phase I dose-finding study is ongoing in patients with solid tumors who receive clofarabine once a week for 3 weeks every 28 days. Blood samples were collected from patients in the highest dose levels before, during, and after clofarabine administration for lymphocyte quantitation and phenotyping using flow cytometry. Results: Of the 11 patients who had samples collected, 5 currently have both baseline and postbaseline values available (1 at the 129 mg/m2 dose level and 4 at the 103 mg/m2 dose level). Overall, the percentage of T cells and CD8 suppressor cells did not decrease significantly with clofarabine administration. In 1 patient where data from 2 cycles were available, CD4 cells decreased slightly after the first cycle, suggesting a possible cumulative effect. However, in all 5 patients CD19 cells decreased significantly after the first infusion of clofarabine and remained suppressed for the duration of the study period. Conclusions: Although clofarabine is a purine analog (as is fludarabine), its effects on lymphocyte subsets more closely resemble gemcitabine, a pyrimidine analog. If substantiated, these findings should have bearing on future decisions about appropriate drug combinations involving clofarabine. No significant financial relationships to disclose.
18

Hopkins, Reed J., Elizabeth C. Sklute, M. Darby Dyar, A. Deanne Rogers, Roger N. Clark, and Rilla McKeegan. "A Spectroscopic Study of Mars-analog Materials with Amorphous Sulfate and Chloride Phases: Implications for Detecting Amorphous Materials on the Martian Surface." Planetary Science Journal 4, no. 9 (September 1, 2023): 173. http://dx.doi.org/10.3847/psj/aced52.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract The Chemistry and Mineralogy X-ray diffraction (XRD) instrument aboard the Curiosity rover consistently identifies amorphous material at Gale Crater, which is compositionally variable, but often includes elevated sulfur and iron, suggesting that amorphous ferric sulfate (AFS) may be present. Understanding how desiccating ferric sulfate brines affect the spectra of Martian material analogs is necessary for interpreting complex/realistic reaction assemblages. Visible and near-infrared reflectance (VNIR), mid-infrared attenuated total reflectance (MIR, FTIR-ATR), and Raman spectra, along with XRD data are presented for basaltic glass, hematite, gypsum, nontronite, and magnesite, each at three grain sizes (<25, 25–63, and 63–180 μm), mixed with ferric sulfate (+/−NaCl), deliquesced, then rapidly desiccated in 11% relative humidity or via vacuum. All desiccated products are partially or completely XRD amorphous; crystalline phases include starting materials and trace precipitates, leaving the bulk of the ferric sulfate in the amorphous fraction. Due to considerable spectral masking, AFS detectability is highly dependent on spectroscopic technique and minerals present. This has strong implications for remote and in situ observations of Martian samples that include an amorphous component. AFS is only identifiable in VNIR spectra for magnesite, nontronite, and gypsum samples; hematite and basaltic glass samples appear similar to pure materials. Sulfate features dominate Raman spectra for nontronite and basaltic glass samples; the analog material dominates Raman spectra of hematite and gypsum samples. MIR data are least affected by masking, but basaltic glass is almost undetectable in MIR spectra of those mixtures. NaCl produces similar FTIR-ATR and Raman features, regardless of analog material.
19

Shi, Jun, and Tong Shu. "Analog Circuit Fault Diagnosis Based on Support Vector Machine." Advanced Materials Research 1055 (November 2014): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.99.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Analog circuit fault diagnosis is essentially a multiple state pattern classification problems. The traditional support vector machine classifier is for binary classification problems. In more than three kinds of commonly used class promotion model. This paper adopted the decision directed acyclic graph of multi-value classification algorithm. Multi-fault SVM classifier model is established. And the kernel function selection and nuclear parameter determination method were studied. Based on this model, support vector machine is used for analog circuit fault diagnosis given the basic idea and implementation steps. In analog circuit fault feature extraction technology, the effective sample point voltage amplitude response signal as well as the fault characteristic samples are extracted by wavelet packet decomposition of the energy spectrum method to extract the signal fault characteristics as the fault samples, formed based on effective sampling points. The SVM classifier is based on wavelet packet decomposition and the SVM classifier two methods of analog circuit fault diagnosis.
20

Rodriguez, Christina M., and Paul J. Silvia. "Psychometric Evidence for Indirect Assessment of Child Abuse Risk in Child Welfare-Involved Mothers." Children 9, no. 5 (May 12, 2022): 711. http://dx.doi.org/10.3390/children9050711.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Most research on factors related to physical child abuse risk rely heavily on direct self-report measures, which is a methodological strategy susceptible to participant response distortions. Such methodological reliance obfuscates the interpretations rendered about the risk factors predictive of child abuse. Efforts to develop alternative indirect assessment approaches, such as analog tasks, show promise, although most of those studies have applied these methods to community samples rather than with child welfare-involved samples. The present study evaluated the psychometric evidence for four separate analog tasks that have not yet been considered with mothers identified for child maltreatment by child welfare services, also contrasted to a sociodemographically matched sample of mothers. The results indicate acceptable reliability for the analog tasks, with additional evidence of validity. However, the two groups of mothers did not substantively differ across measures, suggesting that identification for abuse through child protective services does not differentiate from those closely matched on critical sociodemographic characteristics. The promising preliminary results of these analog tasks in the current study suggest that indirect analog assessment approaches to estimate child abuse risk could be useful in efforts to minimize dependence on self-report methods.
21

Yu, Haipeng, Jianping Huang, and Jifan Chou. "Improvement of Medium-Range Forecasts Using the Analog-Dynamical Method." Monthly Weather Review 142, no. 4 (March 27, 2014): 1570–87. http://dx.doi.org/10.1175/mwr-d-13-00250.1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract This study further develops the analog-dynamical method and applies it to medium-range weather forecasts. By regarding the forecast field as a small disturbance superimposed on historical analog fields, historical analog errors can be used to estimate and correct forecast errors. This method is applied to 10-day forecasts from the Global and Regional Assimilation and Prediction System (GRAPES). Both the distribution of atmospheric circulation and the pattern of sea surface temperature (SST) are considered in choosing the analog samples from a historical dataset for 2001–10 based on NCEP Final (FNL) data. The results demonstrate that the analog-dynamical method greatly reduces forecast errors and extends the period of validity of the global 500-hPa height field by 0.8 days, which is superior to results obtained using systematic correction. The correction effect at 500 hPa is increasingly significant when the lead time increases. Although the analogs are selected using 500-hPa height fields, the forecast skill at all vertical levels is improved. The average increase of the anomaly correlation coefficient (ACC) is 0.07, and the root-mean-square error (RMSE) is decreased by 10 gpm on average at a lead time of 10 days. The magnitude of errors for most forecast fields, such as height, temperature, and kinetic energy is decreased considerably by inverse correction. The model improvement is primarily a result of improvement for planetary-scale waves, while the correction for synoptic-scale waves does not affect model forecast skill. As this method is easy to operate and transport to other sophisticated models, it could be appropriate for operational use.
22

Lalla, Emmanuel Alexis, Kristen Cote, Dylan Hickson, Stefanie Garnitschnig, Menelaos Konstantinidis, Pamela Such, Christine Czakler, et al. "Laboratory Analysis of Returned Samples from the AMADEE-18 Mars Analog Mission." Astrobiology 20, no. 11 (November 1, 2020): 1303–20. http://dx.doi.org/10.1089/ast.2019.2038.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Johnson, Jeffrey R., Michael K. Shepard, William M. Grundy, David A. Paige, and Emily J. Foote. "Spectrogoniometry and modeling of martian and lunar analog samples and Apollo soils." Icarus 223, no. 1 (March 2013): 383–406. http://dx.doi.org/10.1016/j.icarus.2012.12.004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Wilkins, T. A., J. E. Midgley, and N. Barron. "Comprehensive study of a thyroxin-analog-based assay for free thyroxin ("Amerlex FT4")." Clinical Chemistry 31, no. 10 (October 1, 1985): 1644–53. http://dx.doi.org/10.1093/clinchem/31.10.1644.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract The basic theory of thyroxin-analog-based radioimmunoassays for free thyroxin has been extended to evaluate definitively the effects arising from residual binding of the tracer analog to serum proteins. Using experimentally determined binding constants and computer simulation techniques, we studied the effects of thyroxin-analog binding to serum proteins on results of Amerlex FT4 radioimmunoassay, using this improved mathematical model. Results from computer-simulation studies were compared both directly with in vitro experimental results and indirectly with clinical studies. Agreement was good among all three approaches. The relatively weak binding of analog to thyroxin-binding globulin and prealbumin does not significantly perturb Amerlex FT4 assay results. Binding of the analog by albumin has a small but quantifiable effect on assay results, amounting to an intrinsic bias of 0.08 pmol of free thyroxin per liter per gram of albumin per liter for euthyroid serum samples. This bias is unlikely to be important for most clinical laboratory samples, but it may be significant when one is interpreting results for those rare patients with genetic albumin abnormalities such as analbuminemia or familial dysalbuminemic hyperthyroxinemia. Massively increased concentrations of nonesterified fatty acids (e.g., after treatment with heparin) will lead to a spurious increase in free thyroxin in this and most other techniques, including equilibrium dialysis.
25

Рембеза, S. Rembeza, Кононов, and V. Kononov. "12-bit buttongenerator CMOS ADC with SOI-structure." Modeling of systems and processes 6, no. 4 (January 21, 2014): 53–55. http://dx.doi.org/10.12737/4047.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The paper architecture CMOS ADC with digital forecasting an inlet of the analog signal and signal transformation errors sectional ADCS from analog to howl convolution. It is shown that 12-bit CMOS ADC with project standards 0.18 micron provides high accuracy and speed of conversion to 600...1000 million samples/s when operating in hard conditions.
26

Sun, Peng, Zhiming Yang, Yueming Jiang, Shaohua Jia, and Xiyuan Peng. "A Fault Diagnosis Method of Modular Analog Circuit Based on SVDD and D–S Evidence Theory." Sensors 21, no. 20 (October 18, 2021): 6889. http://dx.doi.org/10.3390/s21206889.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
In the actual fault diagnosis process of an analog circuit, there is often a problem due to the lack of fault samples, leading to the low-accuracy of diagnostic models. Therefore, using positive samples that are easy to obtain to establish diagnostic models became a research hotspot in the field of analog circuit fault diagnosis. This paper proposes a method based on Support Vector Data Description (SVDD) and Dempster–Shafer evidence theory (D–S evidence theory) for fault diagnosis of modular analog circuit. Firstly, the principle of circuit module partition is proposed to divide the analog circuit under test, and the output port of each module is selected as test point. Secondly, the paper extracts the feature of the time-domain and frequency-domain output signals of the circuit module through Principal Component Analysis (PCA). Thirdly, four state detection models based on SVDD are established to judge the working state of each circuit module, including TSG, TSP, FSG, and FSP state detection model. Finally, the D–S theory is introduced to integrate the test results of each model for locating fault circuit module. To verify the effectiveness of the proposed method, the dual bandpass filter circuit is selected for simulation and hardware experiment. The results show that the proposed method can locate the analog fault effectively and has a higher diagnosis accuracy.
27

Varga, B., F. Fülöp, G. Toldi, L. Vécsei, Y. Mándi, and A. Balog. "AB0096 INVESTIGATION OF THE EFFECTS OF KYNURENIC ACID ANALOG IN ANKYLOSING SPONDYLITIS AND PSORIATIC ARTHRITIS." Annals of the Rheumatic Diseases 82, Suppl 1 (May 30, 2023): 1227.2–1227. http://dx.doi.org/10.1136/annrheumdis-2023-eular.5149.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
BackgroundThe anti-inflammatory and immunosuppressive functions of kynurenic acid (KYNA) is in the center of attention. Previously, we demonstrated the effects of KYNA analog on the blood samples of rheumatoid arthritis patientsin vitro.The results showed the suppression of tumor necrosis factor-α (TNF-α), S100A12 (EN-RAGE), S100A8/9 (calprotectin) and α-defensin production, with the increase of tumor necrosis factor-stimulated gene-6 protein (TSG-6) levels.ObjectivesIn the present study, we compared the effects of the previously used newly synthetized KYNA analog on the TNF-α, S100A8/9, S100A12 alarmins, α-defensin and interleukin-17 (IL-17) production, correlation with the effects on the TSG-6 expression in ankylosing spondylitis (AS) and psoriatic arthritis (PsA).Methods38 PsA and 54 AS patients were involved and divided in subgroups based on disease activity. Heat inactivatedStaphylococcus aureus(SA1) were used as cytokine inducers on peripheral blood mononuclear cells (PBMC) isolated from blood samples of healthy controls, and patients. In parallelin vitroexperiments, the SA1 induced PBMCs were pretreated with the KYNA analog. The concentrations of the above mentioned inflammatory mediators in the supernatants were quantified by ELISA.ResultsThe SA1 induced the TNF-α, TSG-6, calprotectin and α-defensin production while only a modest increase could be seen in the concentration of EN-RAGE, and had no effect on the IL-17 levels. KYNA analog attenuated the SA1 induced TNF-α, calprotectin and α-defensin production, and increased the TSG-6 production. Addition of KYNA analog had no effect on the EN-RAGE and IL-17-levels. The cytokine inducer effect of SA-1 was the mildest in the blood samples of patients with csDMARD or NSAID therapy. The TNF-α inhibitory effect of the KYNA analog correlated inversely with the TSG-6 stimulatory effect.ConclusionTSG-6 expression could participate in the suppression of inflammatory cytokines, such as TNF-α, calprotectin and α-defensin in spondylarthropathies. The elevation of the TSG-6 production by KYNA analog is a possible mechanism behind the antiinflammatory effect of KYNA, marking it a potential target for therapeutic application in the treatment of immune mediated diseases such as AS, PsA or RA.REFERENCES:NIL.Acknowledgements:NIL.Disclosure of InterestsNone Declared.
28

К. Soldatov and Y. Zayac. "REINFORCED-CONCRETE HATCHES OF MANHOLES." Bridges and tunnels: Theory, Research, Practice, no. 7 (April 16, 2016): 48–56. http://dx.doi.org/10.15802/bttrp2015/66712.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Purpose. Experience of operation of different type of hatches made of different materials shows that majority of them has not sufficient bearing capacity, that is why the primary purpose of this work is construction and calculation of such a hatch, that would be optimal from point of cost and bearing capacity. Methodology. For research experimental and theoretical method was chosen, which is based on application of new design of reinforced-concrete hatch, which is designed with the special method of calculation and experiments on test samples that are manufactured on the bridge reinforced-concrete structures factory with different parameters of both concrete mix and re-enforcement. Findings. Results of the performed calculations and testing’s of three natural size samples confirmed that this type of hatch has larger bearing capacity when compared to analog samples of polymer materials. Originality. Publications on this direction do not contain sampled that are similar to described ones in design. The very design and calculation method are new. Practical value. This design of the hatch is suitable for installing even in the areas of the high loading. By comparison to analogs made of cast-iron and polymers it is simple in manufacturing, and, most importantly, it satisfies the requirements of operational safety.
29

Florescu, Dorian, and Daniel Coca. "Signal Filtering Using Neuromorphic Measurements." Journal of Low Power Electronics and Applications 13, no. 4 (December 6, 2023): 63. http://dx.doi.org/10.3390/jlpea13040063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Digital filtering is a fundamental technique in digital signal processing, which operates on a digital sequence without any information on how the sequence was generated. This paper proposes a methodology for designing the equivalent of digital filtering for neuromorphic samples, which are a low-power alternative to conventional digital samples. In the literature, filtering using neuromorphic samples is performed by filtering the reconstructed analog signal, which is required to belong to a predefined input space. We show that this requirement is not necessary, and introduce a new method for computing the neuromorphic samples of the filter output directly from the input samples, backed by theoretical guarantees. We show numerically that we can achieve a similar accuracy compared to that of the conventional method. However, given that we bypass the analog signal reconstruction step, our results show significantly reduced computation time for the proposed method and good performance even when signal recovery is not possible.
30

Cuadros, Javier, Joseph R. Michalski, Janice L. Bishop, Christian Mavris, Saverio Fiore, and Vesselin Dekov. "Mars-rover cameras evaluation of laboratory spectra of Fe-bearing Mars analog samples." Icarus 371 (January 2022): 114704. http://dx.doi.org/10.1016/j.icarus.2021.114704.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Рембеза, S. Rembeza, Кононов, and V. Kononov. "12-bit buttongenerator CMOS ADC with SOI-structure and a supply voltage of 1.8 ±5%." Modeling of systems and processes 7, no. 1 (August 8, 2014): 74–76. http://dx.doi.org/10.12737/4959.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Considered architecture CMOS ADC with digital forecasting input analog signal and converted education error signal sectional ADCS from analog convolution. It is shown that 12-bit CMOS ADC with project standards 0.18 micron provides high accuracy and speed of conversion to 600...1000 million samples/s when operating in hard conditions. Noted that through simple modifications considered architecture can increase the bit CMOS ADC to 14 bits.
32

Wu, Xiong Xue, and Chao You Guo. "Fault Localization of Analog Circuit with Small Sample Using SVM and AIS Methods." Applied Mechanics and Materials 325-326 (June 2013): 893–98. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.893.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Both Support Vector Machines (SVM) and Artificial Immune Systems (AIS) are by far effective on faults localization of analogue circuits for small samples. In this paper, both a selective SVM ensemble based on clustering Algorithm and a new AIS based on real-valued NS (RNS) algorithm are applied to the fault diagnosis and their effects are evaluated. The fault diagnosis experiments on a continuous-time state-variable filter circuit show that the fault diagnosis method based the AIS can obtain high fault localization rate of 95% when only one group samples acted as the training samples and the other method can obtain fault localization rate of 85% when 400 group samples acted as the training samples. So, AIS is a more effective method to fault diagnosis with small samples.
33

Sumardiono, Siswo, Arsy Novitasari, Fiky Zakiyatul Awaliyah, and Wahyudita Meganingtyas. "The Effect of Composite Flour Ratio (Cassava, Gembili, Koro Pedang, and Corn) and Extrusion Temperature on Analog Rice Production." Journal of Vocational Studies on Applied Research 5, no. 1 (May 27, 2023): 23–30. http://dx.doi.org/10.14710/jvsar.v5i1.17610.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The growing population affects an increasing number of Indonesian people, influencing their rice consumption and encouraging Indonesia to import rice. One of the alternatives is to use raw materials such as potential non-rice tubers. In this study, raw material composite flour was made from cassava (Manihot esculenta), gembili (Dioscorea esculenta), koro pedang (Canavalia ensiformis), and corn (Zea mays), which is the basic ingredient of rice maker analog. This research aimed to examine the influence of the raw material composition on the value of nutrients, the physical-chemical properties of analog rice compared to a rice paddy, and the best temperature of analog rice using organoleptic tests. The process of producing analog rice consists of several stages of research, including the manufacturing of composite flour, the cooking of dough with composite flour, the production of analog rice, and the drying of analog rice. Based on the results, samples of 5 (60% cassava flour, 5% gembili flour, 10% koro pedang, and 25% corn flour) as an analog of rice with the best formulations in various compositions. Based on a proximate analysis of the effect of temperature, a temperature of 75 °C is the optimum temperature for the extrusion process. The results of the physical analysis of the best analog rice in this study have a density of 0.46 g/mL, water absorption of 60.52%, and a cooking time is 46 minutes. The analog rice has the same texture, aroma, and appearance as rice in general, although the rice from the analog composite flour tends to have a savory flavor arising from koro pedang. According to the results of this study, the analog rice could be used as a substitute to lessen dependence on paddy rice.
34

Yang, Y. P., and D. W. Emerson. "Electromagnetic conductivities of rock cores: Theory and analog results." GEOPHYSICS 62, no. 6 (November 1997): 1779–93. http://dx.doi.org/10.1190/1.1444278.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Measurement theory developed for a laboratory investigation of electromagnetic characteristics of conductive and magnetic rocks agreed with experiments performed on synthetic conductive samples using a multifrequency coil‐bridge system in the 10 kHz to 4 MHz range. The theoretical analysis also provides a basic and useful method for the study of inductive [electromagnetic (EM)] conductivity and magnetic susceptibility spectra from conductive and/or magnetic samples. The skin effect, an important consequence of eddy current behavior, affects EM measurements and can be recognized by varying the energizing frequency. Investigations of the EM respses of 104 synthetic cores, of five types, revealed that textural effects, i.e., the structure, arrangement, and particle size of the conducting elements exerted a large influence on results. These analog cores contained a range of conductors, including copper wires, graphite powder, aluminum particles, and magnetite‐ilmenite grains, set in a matrix of insulating plaster or wax, representing models of layered, stringer, disseminated, network, massive, and magnetite‐rich mineralizations. For a heterogeneous sample, the laboratory‐measured EM conductivity depends strongly on the structure and orientation of the conducting materials and usually differs from the galvanic conductivity. For a sample with insulated conducting particles, the measured EM conductivity decreases with the increasing square of the sample diameter. This indicates that EM field methods may not respond well to disseminated targets with dispersed conducting minerals even at high concentrations. A mechanism attributed to magnetic loss produced unrealistically high apparent conductivities for magnetite‐bearing samples, especially at low frequencies (f < 100 kHz). For a conductive magnetite sample (σ >1 S/m), the effect of magnetic loss can be eliminated at high frequencies (f > 400 kHz ), and the ohmic conductivity of the magnetite sample can then be estimated.
35

Yang, Lin, Lihong Wang, Xingpu Lv, Jing-Huo Chen, Yang Wang, and Guang Yang. "Complexation of triangular silver(i) or copper(i) nitropyrazolates with dibenzothiophenes having potential use in adsorptive desulfurization." Dalton Transactions 50, no. 8 (2021): 2915–27. http://dx.doi.org/10.1039/d0dt04037a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Jia, Zhen, Qiqi Yang, Yang Li, Siyu Wang, Peng Xu, and Zhenbao Liu. "A Fault Diagnosis Strategy for Analog Circuits with Limited Samples Based on the Combination of the Transformer and Generative Models." Sensors 23, no. 22 (November 11, 2023): 9125. http://dx.doi.org/10.3390/s23229125.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
As a pivotal integral component within electronic systems, analog circuits are of paramount importance for the timely detection and precise diagnosis of their faults. However, the objective reality of limited fault samples in operational devices with analog circuitry poses challenges to the direct applicability of existing diagnostic methods. This study proposes an innovative approach for fault diagnosis in analog circuits by integrating deep convolutional generative adversarial networks (DCGANs) with the Transformer architecture, addressing the problem of insufficient fault samples affecting diagnostic performance. Firstly, the employment of the continuous wavelet transform in combination with Morlet wavelet basis functions serves as a means to derive time–frequency images, enhancing fault feature recognition while converting time-domain signals into time–frequency representations. Furthermore, the augmentation of datasets utilizing deep convolutional GANs is employed to generate synthetic time–frequency signals from existing fault data. The Transformer-based fault diagnosis model was trained using a mixture of original signals and generated signals, and the model was subsequently tested. Through experiments involving single and multiple fault scenarios in three simulated circuits, a comparative analysis of the proposed approach was conducted with a number of established benchmark methods, and its effectiveness in various scenarios was evaluated. In addition, the ability of the proposed fault diagnosis technique was investigated in the presence of limited fault data samples. The outcome reveals that the proposed diagnostic method exhibits a consistently high overall accuracy of over 96% in diverse test scenarios. Moreover, it delivers satisfactory performance even when real sample sizes are as small as 150 instances in various fault categories.
37

Wilkins, T. A., J. E. Midgley, R. A. Stevens, I. Caughey, and N. Barron. "Assay performance and tracer properties for two analog-based assays of free triiodothyronine." Clinical Chemistry 32, no. 3 (March 1, 1986): 465–69. http://dx.doi.org/10.1093/clinchem/32.3.465.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract We determined binding characteristics of the triiodothyronine (T3) analog tracer used in the Amerlex and Amerlex-M FT3 radioimmunoassay for the three endogenous binding proteins in serum: thyroxin-binding globulin (TBG), thyroxin binding prealbumin (PA), and albumin. Both T3 and its analog bind to the same sites on TBG and PA. However, the analog has significantly lower association constants (1.0% and 3.8%, respectively, of T3 binding affinity) and it binds to different sites on albumin. Analog binding is characterized by two (weak) specific binding sites [K = 0.46 (SD 0.03) X 10(5) L/mol]; T3 is bound at about 28 very weak, nonspecific sites [K = 0.41 (SD 0.03) X 10(4) L/mol]. Sera from healthy subjects with a wide range of concentrations of binding proteins showed no interference from analog binding in the FT3 assay. In contrast, in vitro studies of albumin binding revealed a weak dependence of both assays on albumin concentration (0.05 pmol of FT3 per gram of albumin per liter), an interference probably unimportant for most laboratory samples. Nonesterified fatty acids (NEFA) and the T3 analog apparently bind to different sites on albumin; thus the Amerlex FT3 assay is insensitive to moderately increased concentrations of NEFA in serum.
38

Benoit, Paul H., and Yongheng Chen. "Galactic cosmic-ray-produced thermoluminescence profiles in meteorites, lunar samples and a terrestrial analog." Radiation Measurements 26, no. 2 (March 1996): 281–89. http://dx.doi.org/10.1016/1350-4487(95)00302-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Awada, Emad A. "Hilbert Based Testing of ADC Differential Non-linearity Using Wavelet Transform Algorithms." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (December 1, 2018): 5071. http://dx.doi.org/10.11591/ijece.v8i6.pp5071-5079.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
In testing Mixed Signal Devices such as Analog to Digital and Digital to Analog Converters, some dynamic parameters, such as Differential Non-Linearity and Integral Non-linearity, are very critical to evaluating devises performance. However, such analysis has been notorious for complexity and massive compiling process. Therefore, this research will focus on testing dynamic parameters such as Differential Non-Linearity by simulating numerous numbers of bits Analog to Digital Converters and test the output signals base on new testing algorithms of Wavelet transform based on Hilbert process. Such a new testing algorithm should enhance the testing process by using less compiling data samples and prompt testing results. In addition, new testing results will be compared with the conventional testing process of Histogram algorithms for accuracy and enactment.
40

Garbowski, Tomasz, Tomasz Gajewski, and Anna Knitter-Piątkowska. "Influence of Analog and Digital Crease Lines on Mechanical Parameters of Corrugated Board and Packaging." Sensors 22, no. 13 (June 25, 2022): 4800. http://dx.doi.org/10.3390/s22134800.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
When producing packaging from corrugated board, material weakening often occurs both during the die-cutting process and during printing. While the analog lamination and/or printing processes that degrade material can be easily replaced with a digital approach, the die-cutting process remains overwhelmingly analog. Recently, new innovative technologies have emerged that have begun to replace or at least supplement old techniques. This paper presents the results of laboratory tests on corrugated board and packaging made using both analog and digital technologies. Cardboard samples with digital and analog creases are subject to various mechanical tests, which allows for an assessment of the impact of creases on the mechanical properties of the cardboard itself, as well as on the behavior of the packaging. It is proven that digital technology is not only more repeatable, but also weakens the structure of corrugated board to a much lesser extent than analog. An updated numerical model of boxes in compression tests is also discussed. The effect of the crushing of the material in the vicinity of the crease lines in the packaging arising during the analog and digital finishing processes is taken into account. The obtained enhanced computer simulation results closely reflect the experimental observations, which prove that the correct numerical analysis of corrugated cardboard packaging should be performed with the model taking into account the crushing.
41

Martins, Priscila Campos, Thalita Evaristo Couto, and Ana Cristina Côrtes Gama. "Auditory-perceptual evaluation of the degree of vocal deviation: correlation between the Visual Analogue Scale and Numerical Scale." CoDAS 27, no. 3 (June 2015): 279–84. http://dx.doi.org/10.1590/2317-1782/20152014167.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
PURPOSE: To analyze the intra- and inter-rater agreement for visual analog scale and numerical scale in task of sustained vowel and to determine numerical cutoff points to visual analog scale corresponding to the degrees of the numeric scale. METHODS: We selected 205 samples of the usual task of the sustained vowel /a/. Six voice specialists rated the overall degree of vocal deviation, first by visual analog scale and, after two days, by the numeric scale. The results obtained by both scales were compared and the intra- and inter-rater agreement, the correlation between the scales, and the estimated cutoff points using the intraclass correlation and concordance Kappa coefficients, the Spearman coefficient, and analysis of variance, and the values of sensitivity and specificity were analyzed. RESULTS: A strong correlation was observed between the scales. The following numerical cutoff values were found for visual analog scale corresponding to the numerical scale: neutral (degree zero) - 0 to 34 mm; mild (degree one) - 34.1 to 51 mm; moderate (degree two) - 51.1 to 63.5 mm; intense (degree three) - 63.6 to 77.5 mm; and extreme (degree four) - above 77.5 mm. CONCLUSION: The visual analog scale and numerical scale showed a strong correlation, being observed the greater intra- and inter-rater agreement in visual analog scale. Numerical cutoff values for visual analog scale were found. This correlation enables the comparison between the results found in the evaluation of the overall degree of vocal deviation by both scales, which are widely used in research and in the clinical speech therapy routine.
42

Neckář, Jan, Md Abdul Hye Khan, Garrett J. Gross, Michaela Cyprová, Jaroslav Hrdlička, Alena Kvasilová, John R. Falck, et al. "Epoxyeicosatrienoic acid analog EET-B attenuates post-myocardial infarction remodeling in spontaneously hypertensive rats." Clinical Science 133, no. 8 (April 2019): 939–51. http://dx.doi.org/10.1042/cs20180728.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
AbstractEpoxyeicosatrienoic acids (EETs) and their synthetic analogs have cardiovascular protective effects. Here, we investigated the action of a novel EET analog EET-B on the progression of post-myocardial infarction (MI) heart failure in spontaneously hypertensive rats (SHR). Adult male SHR were divided into vehicle- and EET-B (10 mg/kg/day; p.o., 9 weeks)-treated groups. After 2 weeks of treatment, rats were subjected to 30-min left coronary artery occlusion or sham operation. Systolic blood pressure (SBP) and echocardiography (ECHO) measurements were performed at the beginning of study, 4 days before, and 7 weeks after MI. At the end of the study, tissue samples were collected for histological and biochemical analyses. We demonstrated that EET-B treatment did not affect blood pressure and cardiac parameters in SHR prior to MI. Fractional shortening (FS) was decreased to 18.4 ± 1.0% in vehicle-treated MI rats compared with corresponding sham (30.6 ± 1.0%) 7 weeks following MI induction. In infarcted SHR hearts, EET-B treatment improved FS (23.7 ± 0.7%), markedly increased heme oxygenase-1 (HO-1) immunopositivity in cardiomyocytes and reduced cardiac inflammation and fibrosis (by 13 and 19%, respectively). In conclusion, these findings suggest that EET analog EET-B has beneficial therapeutic actions to reduce cardiac remodeling in SHR subjected to MI.
43

Symons, R. G., and R. F. Vining. "An evaluation of a fluorescence polarization immunoassay of thyroxin and thyroxin-uptake." Clinical Chemistry 31, no. 8 (August 1, 1985): 1342–48. http://dx.doi.org/10.1093/clinchem/31.8.1342.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract We evaluated the fluorescence polarization immunoassay for total thyroxin (T4) and thyroxin-uptake (T-U) in the Abbott "TDx" Analyzer. Between-assay precision was good when we did once-fortnightly calibration and assayed samples in singleton. Measured T4 concentration was decreased in hemolyzed samples with obvious red coloration and undetectable in severely hemolyzed samples. The T-U assay was unaffected by hemolysis. Unlike the triiodothyronine-uptake methods, the T-U assay utilizes labeled T4 and measures a variable related to serum thyroxin-binding capacity rather than the concentration of unoccupied binding sites in serum. The T4 and T-U values of 422 samples correlated highly with a T4 (in-house) radioimmunoassay and a commercial assay for thyroxin-binding globulin, respectively. The free thyroxin ratio (ratio of T4 to T-U, FTI) correlated highly with free T4 concentration as measured by T4-analog-tracer radioimmunoassay (fT4 analog RIA). FTI and fT4 values were discordant in late pregnancy (normal FTI and low fT4) and euthyroid sick patients (above-normal or normal FTI and low fT4), suggesting that the FTI gives fewer misleading results in these patients.
44

Andráš, Imrich, Pavol Dolinský, Linus Michaeli, and Ján Šaliga. "Sparse Signal Acquisition via Compressed Sensing and Principal Component Analysis." Measurement Science Review 18, no. 5 (October 1, 2018): 175–82. http://dx.doi.org/10.1515/msr-2018-0025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract This paper presents a way of acquiring a sparse signal by taking only a limited number of samples; sampling and compression are performed in one step by the analog to information conversion. The signal is recovered with minimal information loss from the reduced data record via compressed sensing reconstruction. Several methods of analog to information conversion are described with focus on numerical complexity and implementation in existing embedded devices. Two novel analog to information conversion methods are proposed, distinctive by their computational simplicity - direct subsampling and subsampling with integration. Proposed sensing methods are intended for and evaluated with real water parameter signals measured by a wireless sensor network. Compressed sensing proves to reduce the data transfer rate by >80 % with very little signal processing performed at the sensing side and no appreciable distortion of the reconstructed signal.
45

Zhang, Chaolong, Yigang He, Lei Zuo, Jinping Wang, and Wei He. "A Novel Approach To Diagnosis Of Analog Circuit Incipient Faults Based On KECA And OAO LSSVM." Metrology and Measurement Systems 22, no. 2 (June 1, 2015): 251–62. http://dx.doi.org/10.1515/mms-2015-0025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract Correct incipient identification of an analog circuit fault is conducive to the health of the analog circuit, yet very difficult. In this paper, a novel approach to analog circuit incipient fault identification is presented. Time responses are acquired by sampling outputs of the circuits under test, and then the responses are decomposed by the wavelet transform in order to generate energy features. Afterwards, lower-dimensional features are produced through the kernel entropy component analysis as samples for training and testing a one-against-one least squares support vector machine. Simulations of the incipient fault diagnosis for a Sallen-Key band-pass filter and a two-stage four-op-amp bi-quad low-pass filter demonstrate the diagnosing procedure of the proposed approach, and also reveal that the proposed approach has higher diagnosis accuracy than the referenced methods.
46

Song, Ji Zhong, Chao You Guo, and Hai Song Liu. "Selective SVM Ensemble Base on Clustering Analysis Apply for Analog Circuit Fault Diagnosis with Small Samples." Applied Mechanics and Materials 380-384 (August 2013): 841–45. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.841.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This paper presents a selective SVM ensemble based on clustering analysis to localize the faults of analogue circuits with small samples. The method overcomes disadvantages of single SVM and greatly improves the generation ability for problems with small samples. In the end of paper, simulation experiments on a CTSV filter circuit are carried out. Experimental results demonstrate that selective SVM ensemble based on clustering algorithm is a more effective method to fault diagnosis with small samples than single SVM.
47

Prohorova, Ekaterina V., and Vitaliy V. Ryzhakov. "Regeneration of discrete signals missing samples in the internet of things applications at digital information transmitting via infocommunication channels." T-Comm 15, no. 11 (2021): 10–17. http://dx.doi.org/10.36724/2072-8735-2021-15-11-10-17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The paper discusses a method for recovering missing samples of an analog signal during transmission over communication channels in applications of the Internet of Things. The aim of the work is to obtain a mathematical description of the procedure for restoring the values of the signal samples from the output of the analog sensor on the receiving side, which were not transmitted in order to reduce the load on data transmission channels. The procedure is based on the well-known principles of adaptive signal processing, based on the dynamic determination of the parameters of digital filters based on the assessment of the least-mean-square (LMS) deviation of the signal passing through the filter from a reference signal obtained in one way or another. A feature of the proposed method is the solution of the inverse problem of restoring the samples of the original signal with the known parameters of the filter and the reference signal. In this work, the problem of skipping and restoring samples of a discrete signal is formulated, an expression is obtained for the objective function of the method for restoring missing discrete samples, as well as an expression for iterative restoration by Newton's method of the values of the samples of the original analog signal on the receiving side, which were not transmitted via the data transmission channel. The conditions for the applicability of the method are established, which consist in the a priori known parameters of the reference signal and the digital filter, which are determined in advance from the known characteristics of the original signal. Filtration and transmission of electrocardiogram signals through communication channels, for which an electrocardiogram can be obtained as a reference form, as the norm for healthy patients, is considered as a problem for the solution of which the proposed method is applicable. The practical significance of the proposed method lies in the organization of distributed computing for IoT systems, for which it is critically important to ensure energy savings of an autonomous power source for sensors and reduce the load on data transmission channels.
48

Haack, David, Anthony Lethuillier, Christopher Kreuzig, Clément Feller, Bastian Gundlach, Antoine Pommerol, Jürgen Blum, and Katharina Otto. "Sublimation of ice-dust mixtures in cooled vacuum environments to reproduce cometary morphologies." Astronomy & Astrophysics 649 (May 2021): A35. http://dx.doi.org/10.1051/0004-6361/202140435.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Aims. The morphology of cometary surfaces can provide important information to constrain the composition and evolution of comets. In this work, we investigate the sublimation behavior of comet analog materials and how the sample composition affects the evolution of morphological features in laboratory experiments. In our experiments, we used dust ice mixtures as analog material to form observed cometary morphologies. Methods. We used ice-dust mixtures in different mixing ratios as cometary analog material. In order to obtain realistic results, we scaled the expected cohesive and gravitational forces on comets to laboratory conditions. The samples were placed in a vacuum sublimation chamber and permanently cooled down to temperatures below 150 K to simulate the space environment. In the experiment, the samples were insolated with a light source from two different directions and alterations on the surface were recorded with a camera. Results. We find that the morphology of sublimation residues of ice-dust mixtures is strongly dependent on the ice-dust ratio as well as the insolation direction. High amounts of ice cause constant surface alteration and lead to exotic morphologies. Low amounts cause fewer and more episodic surface changes during its sublimation. Collapse events resulting in irregular and very rough surfaces occur during horizontal insolation.
49

Schirmack, Janosch, Marcel Fiebrandt, Katharina Stapelmann, and Dirk Schulze-Makuch. "Effects of Low-Temperature Plasma-Sterilization on Mars Analog Soil Samples Mixed with Deinococcus radiodurans." Life 6, no. 2 (May 26, 2016): 22. http://dx.doi.org/10.3390/life6020022.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Bennett, Chris J., Corey S. Jamieson, and Ralf I. Kaiser. "Mechanistical studies on the formation of carbon dioxide in extraterrestrial carbon monoxide ice analog samples." Physical Chemistry Chemical Physics 11, no. 21 (2009): 4210. http://dx.doi.org/10.1039/b901220f.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Analog samples' for other source types:
Dissertations / Theses

To the bibliography