Search

Your search keyword '"Guzman, Juan C."' showing total 503 results
Start Over Author "Guzman, Juan C."
503 results on '"Guzman, Juan C."'

3. 2023 HRS/APHRS/LAHRS guideline on cardiac physiologic pacing for the avoidance and mitigation of heart failure

Author

Chung, Mina K., Patton, Kristen K., Lau, Chu-Pak, Dal Forno, Alexander R.J., Al-Khatib, Sana M., Arora, Vanita, Birgersdotter-Green, Ulrika Maria, Cha, Yong-Mei, Chung, Eugene H., Cronin, Edmond M., Curtis, Anne B., Cygankiewicz, Iwona, Dandamudi, Gopi, Dubin, Anne M., Ensch, Douglas P., Glotzer, Taya V., Gold, Michael R., Goldberger, Zachary D., Gopinathannair, Rakesh, Gorodeski, Eiran Z., Gutierrez, Alejandra, Guzman, Juan C., Huang, Weijian, Imrey, Peter B., Indik, Julia H., Karim, Saima, Karpawich, Peter P., Khaykin, Yaariv, Kiehl, Erich L., Kron, Jordana, Kutyifa, Valentina, Link, Mark S., Marine, Joseph E., Mullens, Wilfried, Park, Seung-Jung, Parkash, Ratika, Patete, Manuel F., Pathak, Rajeev Kumar, Perona, Carlos A., Rickard, John, Schoenfeld, Mark H., Seow, Swee-Chong, Shen, Win-Kuang, Shoda, Morio, Singh, Jagmeet P., Slotwiner, David J., Sridhar, Arun Raghav M., Srivatsa, Uma N., Stecker, Eric C., Tanawuttiwat, Tanyanan, Tang, W.H. Wilson, Tapias, Carlos Andres, Tracy, Cynthia M., Upadhyay, Gaurav A., Varma, Niraj, Vernooy, Kevin, Vijayaraman, Pugazhendhi, Worsnick, Sarah Ann, Zareba, Wojciech, and Zeitler, Emily P.

Published
2023
Full Text
View/download PDF

4. Objective Hemodynamic Cardiovascular Autonomic Abnormalities in Post-Acute Sequelae of COVID-19

Author

Ahmad, Hyeqa, Ambreen, Sakina, Ayala Valani, Luciano M., Baker, Jacquie R., Bourne, Kate M., Dunn, Jeff F., Hira, Rashmin, Karalasingham, Kavithra, Lloyd, Matthew G., Mavai, Vibhuti, Morillo, Carlos A., Raj, Satish R., Ranada, Shaun I., Sheldon, Robert S., Siddiqui, Tanya, Soroush, Ateyeh, Guzman, Juan C., Claydon, Victoria, Ayala-Paredes, Felix A., Floras, John, Harvey, Paula, Osuntokun, Oluwatosin, and Ayala Valani, Luciano Martin

Published
2023
Full Text
View/download PDF

12. 2023 HRS / APHRS / LAHRS guideline on cardiac physiologic pacing for the avoidance and mitigation of heart failure

Author

Chung, Mina K., primary, Patton, Kristen K., additional, Lau, Chu‐Pak, additional, Dal Forno, Alexander R. J., additional, Al‐Khatib, Sana M., additional, Arora, Vanita, additional, Birgersdotter‐Green, Ulrika Maria, additional, Cha, Yong‐Mei, additional, Chung, Eugene H., additional, Cronin, Edmond M., additional, Curtis, Anne B., additional, Cygankiewicz, Iwona, additional, Dandamudi, Gopi, additional, Dubin, Anne M., additional, Ensch, Douglas P., additional, Glotzer, Taya V., additional, Gold, Michael R., additional, Goldberger, Zachary D., additional, Gopinathannair, Rakesh, additional, Gorodeski, Eiran Z., additional, Gutierrez, Alejandra, additional, Guzman, Juan C., additional, Huang, Weijian, additional, Imrey, Peter B., additional, Indik, Julia H., additional, Karim, Saima, additional, Karpawich, Peter P., additional, Khaykin, Yaariv, additional, Kiehl, Erich L., additional, Kron, Jordana, additional, Kutyifa, Valentina, additional, Link, Mark S., additional, Marine, Joseph E., additional, Mullens, Wilfried, additional, Park, Seung‐Jung, additional, Parkash, Ratika, additional, Patete, Manuel F., additional, Pathak, Rajeev Kumar, additional, Perona, Carlos A., additional, Rickard, John, additional, Schoenfeld, Mark H., additional, Seow, Swee‐Chong, additional, Shen, Win‐Kuang, additional, Shoda, Morio, additional, Singh, Jagmeet P., additional, Slotwiner, David J., additional, Sridhar, Arun Raghav M., additional, Srivatsa, Uma N., additional, Stecker, Eric C., additional, Tanawuttiwat, Tanyanan, additional, Tang, W. H. Wilson, additional, Tapias, Carlos Andres, additional, Tracy, Cynthia M., additional, Upadhyay, Gaurav A., additional, Varma, Niraj, additional, Vernooy, Kevin, additional, Vijayaraman, Pugazhendhi, additional, Worsnick, Sarah Ann, additional, Zareba, Wojciech, additional, and Zeitler, Emily P., additional

Published
2023
Full Text
View/download PDF

17. 2023 HRS/APHRS/LAHRSguideline on cardiac physiologic pacing for the avoidance and mitigation of heart failure

Author

Chung, Mina K., Patton, Kristen K., Lau, Chu‐Pak, Dal Forno, Alexander R. J., Al‐Khatib, Sana M., Arora, Vanita, Birgersdotter‐Green, Ulrika Maria, Cha, Yong‐Mei, Chung, Eugene H., Cronin, Edmond M., Curtis, Anne B., Cygankiewicz, Iwona, Dandamudi, Gopi, Dubin, Anne M., Ensch, Douglas P., Glotzer, Taya V., Gold, Michael R., Goldberger, Zachary D., Gopinathannair, Rakesh, Gorodeski, Eiran Z., Gutierrez, Alejandra, Guzman, Juan C., Huang, Weijian, Imrey, Peter B., Indik, Julia H., Karim, Saima, Karpawich, Peter P., Khaykin, Yaariv, Kiehl, Erich L., Kron, Jordana, Kutyifa, Valentina, Link, Mark S., Marine, Joseph E., Mullens, Wilfried, Park, Seung‐Jung, Parkash, Ratika, Patete, Manuel F., Pathak, Rajeev Kumar, Perona, Carlos A., Rickard, John, Schoenfeld, Mark H., Seow, Swee‐Chong, Shen, Win‐Kuang, Shoda, Morio, Singh, Jagmeet P., Slotwiner, David J., Sridhar, Arun Raghav M., Srivatsa, Uma N., Stecker, Eric C., Tanawuttiwat, Tanyanan, Tang, W. H. Wilson, Tapias, Carlos Andres, Tracy, Cynthia M., Upadhyay, Gaurav A., Varma, Niraj, Vernooy, Kevin, Vijayaraman, Pugazhendhi, Worsnick, Sarah Ann, Zareba, Wojciech, Zeitler, Emily P., Lopez‐Cabanillas, Nestor, Ellenbogen, Kenneth A., Hua, Wei, Ikeda, Takanori, Mackall, Judith A., Mason, Pamela K., McLeod, Christopher J., Mela, Theofanie, Moore, Jeremy P., and Racenet, Laurel Kay

Abstract

Cardiac physiologic pacing (CPP), encompassing cardiac resynchronization therapy (CRT) and conduction system pacing (CSP), has emerged as a pacing therapy strategy that may mitigate or prevent the development of heart failure (HF) in patients with ventricular dyssynchrony or pacing‐induced cardiomyopathy. This clinical practice guideline is intended to provide guidance on indications for CRT for HF therapy and CPP in patients with pacemaker indications or HF, patient selection, pre‐procedure evaluation and preparation, implant procedure management, follow‐up evaluation and optimization of CPP response, and use in pediatric populations. Gaps in knowledge, pointing to new directions for future research, are also identified.

Published
2023
Full Text
View/download PDF

20. Design, Manufacture and Test of Cryotank Components

Author

McCarville, Douglas A, Guzman, Juan C, Dillon. Alexandra K, Jackson, Justin R, and Birkland, Jordan O

Subjects
Propellants And Fuels, Spacecraft Propulsion And Power
Abstract

On the composite cryotank technology development (CCTD) project, the Boeing Company built two cryotanks as a means of advancing technology and manufacturing readiness levels (TRL and MRL) and lowering the risk of fabricating full-scale fuel containment vessels.1 CCTD focused on upper stage extended duration applications where long term storage of propellants is required. The project involved the design, analysis, fabrication, and test of manufacturing demonstration units (MDU), a 2.4 m (precursor) and a 5.5 m composite cryotank. Key design features included one-piece wall construction to minimize overall weight (eliminating the need for a bellyband joint), 3-dimensionally (3D) reinforced y-joint material to alleviate stress concentrations at the tank to skirt interface and a purge-able fluted core skirt to carry high axial launch loads. The tanks were made with OoA curing pre-impregnated (prepreg) carbon/epoxy (C/E) slit-tape tow (STT) that contained thin micro-crack resistant plies in the tank wall center to impede permeation. The tanks were fabricated at Boeing's Seattle-based Advanced Development Center (ADC) using RAFP and multipiece break-down tooling. The tooling was designed and built by Janicki Industries (JI) at Sedro Woolley, Washington. Tank assemblage consisted of co-bonded dome covers, one-piece fluted core skirts and mechanical fastened cover/sump. Ultrasonic inspection was performed after every cure or bond and a structural health monitoring system (SHMS) was installed to identify potential impact damage events (in-process and/or during transportation). The tanks were low temperature tested at NASA's George C. Marshall Space Flight Center (MSFC) in Huntsville, Alabama. The testing, which consisted of a sequence of fill/drain pressure and thermal cycles using LH2, was successfully concluded in 2012 on the 2.4 m tank and in 2014 on the 5.5 m tank. Structural, thermal, and permeation performance data was obtained. 2 Critical design features and manufacturing advancements, which helped to validate 25% weight and 30% cost reduction projections, were matured. These advancements will help to guide future composite tank integration activities on next generation long duration aircraft and space launch vehicles. Because CCTD addressed innovative design features, heavy lift size scale-up, multipiece captured tooling, new generation automated material placement (AMP) equipment and OoA materials, this chapter should be of interest to educators, students and manufacturers of composite hardware and flight vehicles.

Published
2017
Full Text
View/download PDF

23. The Infrared Imaging Spectrograph (IRIS) for TMT: final design development of the data reduction system

Author

Guzman, Juan C., Ibsen, Jorge, Surya, Arun, Zonca, Andrea, Rundquist, Nils-Erik, Wright, Shelley A., Walth, Gregory L., Anderson, David, Chapin, Edward, Chisholm, Eric, Do, Tuan, Dunn, Jennifer, Gillies, Kim, Hayano, Yutaka, Johnson, Chris, Kupke, Renate, Larkin, James, Nakamoto, Takashi, Riddle, Reed, Smith, Roger, Suzuki, Ryuji, Sohn, Ji Man, Weber, Robert, Weiss, Jason, Zhang, Kai, Guzman, Juan C., Ibsen, Jorge, Surya, Arun, Zonca, Andrea, Rundquist, Nils-Erik, Wright, Shelley A., Walth, Gregory L., Anderson, David, Chapin, Edward, Chisholm, Eric, Do, Tuan, Dunn, Jennifer, Gillies, Kim, Hayano, Yutaka, Johnson, Chris, Kupke, Renate, Larkin, James, Nakamoto, Takashi, Riddle, Reed, Smith, Roger, Suzuki, Ryuji, Sohn, Ji Man, Weber, Robert, Weiss, Jason, and Zhang, Kai

Abstract

IRIS (Infrared Imaging Spectrograph) is the near-infrared (0.84 to 2.4 micron) diffraction-limited imager and Integral Field Spectrograph (IFS) designed for the Thirty Meter Telescope (TMT) and the Narrow-Field Infrared Adaptive Optics System ( NFIRAOS ). The imager will have a 34 arcsec x 34 arcsec field of view with 4 milliarcseconds (mas) pixels. The IFS consists of a lenslet array and slicer, enabling four plate scales from 4 mas to 50 mas, with multiple gratings and filters. We will report the progress on the development of the IRIS Data Reduction System ( DRS ) in the final design phase. The IRIS DRS is being developed in Python with the software architecture based on the James Webb Space Telescope science calibration pipeline. We are developing a library of algorithms as individual Python classes that can be configured independently and bundled into pipelines. We will interface this with the observatory software to run online during observations and we will release the package publicly for scientists to develop custom analyses. It also includes a C library for readout processing to be used for both in real-time processing (e.g., up-the-ramp, MCDS) as well the ability for astronomers to use for offline reduction. Lastly, we will also discuss the development of the IRIS simulation packages that simulate raw spectra and image readout-data from the Hawaii-4RG detectors, which helps in developing reduction algorithms during this design phase.

Published
2020

24. GRBSpec and GRBPhot:Social networks to share gamma ray burst data

Author

Guzman, Juan C., Ibsen, Jorge, Blazek, Martin, De Ugarte Postigo, A., Kann, D. A., Thöne, C. C., Agüĺ Fernández, J. F., Izzo, L., Guzman, Juan C., Ibsen, Jorge, Blazek, Martin, De Ugarte Postigo, A., Kann, D. A., Thöne, C. C., Agüĺ Fernández, J. F., and Izzo, L.

Abstract

GRBSpec and GRBPhot are two databases designed for the storage and analysis of gamma-ray burst (GRB) data. GRBSpec is devoted to spectroscopic observations, GRBPhot to photometric data. Both databases have a detailed search engine and offer online graphical tools for plotting and data analysis. They aim to publicly share these specialised data among the astronomical community and provide quick online measurements and plots. The databases can be accessed through http://grbpsec.iaa.es and http://grbphot.iaa.es, respectively. As of November 2020, the database already contained 2013 files belonging to 810 spectra of 268 different GRBs.

Published
2020

25. A machine learning software to estimate morphological parameters of distant galaxies

Author

Guzman, Juan C., Ibsen, Jorge, Umayahara, Takuya, Shibuya, Takatoshi, Miura, Noriaki, Chang, Yu Yen, Fujimoto, Seiji, Harikane, Yuichi, Higuchi, Ryo, Inoue, Shigeki, Kojima, Takashi, Tadaki, Ken Ichi, Toba, Yoshiki, Guzman, Juan C., Ibsen, Jorge, Umayahara, Takuya, Shibuya, Takatoshi, Miura, Noriaki, Chang, Yu Yen, Fujimoto, Seiji, Harikane, Yuichi, Higuchi, Ryo, Inoue, Shigeki, Kojima, Takashi, Tadaki, Ken Ichi, and Toba, Yoshiki

Abstract

We develop a machine learning (ML) software to estimate morphological parameters (e.g., the half-light radius re) of high redshift galaxies in the Subaru/Hyper Suprime-Cam data. To make the ML software capture simultaneously galaxy morphological features and point spread function (PSF) broadening effects, we implement a two-stream convolutional neural network (CNN) for inputs of galaxy and PSF images. Thanks to large training samples of galaxy and PSF images, the two-stream CNN estimates re more accurately than a single-stream CNN with only galaxy images. Our ML software would be a useful tool to investigate galaxy morphological properties with PSF-unstable images obtained in future large-area ground-based surveys.

Published
2020

26. Acute vascular responses to isometric handgrip exercise and effects of training in persons medicated for hypertension

Author

McGowan, Cheri L., Levy, Andrew S., Millar, Philip J., Guzman, Juan C., Morillo, Carlos A., McCartney, Neil, and MacDonald, Maureen J.

Subjects
Hypertension -- Health aspects, Hypertension -- Care and treatment, Isometric exercise -- Health aspects, Blood flow -- Research, Biological sciences
Abstract

Previous work from our laboratory demonstrated that isometric handgrip (IHG) training improved local, endothelium-dependent vasodilation in medicated hypertensives [McGowan CL (PhD Thesis), 2006; McGowan et al. Physiologist 47: 285, 2004]. We investigated whether changes in the capacity of smooth muscle to dilate (regardless of endothelial factors) influenced this training-induced change, and we examined the acute vascular responses to a single bout of IHG. Seventeen subjects performed four 2-min unilateral IHG contractions at 30% of maximal voluntary effort, three times a week for 8 wk. Pre- and posttraining, brachial artery flow-mediated dilation (FMD, an index of endothelium-dependent vasodilation) and nitroglycerin-mediated maximal vasodilation (an index of endothelium-independent vasodilation) were measured in the exercised arm by using ultrasound before and immediately after acute IHG exercise. IHG training resulted in improved resting brachial FMD (P < 0.01) and no change in nitroglycerin-mediated maximal vasodilation. Pre- and posttraining, brachial artery FMD decreased following an acute bout of IHG exercise (normalized to peak shear rate, pre-, before IHG exercise: 0.01 [+ or -] 0.002, after IHG exercise: 0.008 [+ or -] 0.002%/[s.sup.-l]; post-, before IHG exercise: 0.020 [+ or -] 0.003, after IHG exercise: 0.010 [+ or -] 0.003%/[s.sup.-1]; p < 0.01). Posttraining, resting brachial artery FMD improved yet nitroglycerin-mediated maximal vasodilation was unchanged in persons medicated for hypertension. This suggests that the training-induced improvements in the resting brachial artery FMD were not due to underlying changes in the forearm vasculature. Acute IHG exercise attenuated brachial artery FMD, and although this impairment may be interpreted as hazardous to medicated hypertensives with already dysfunctional endothelium, the effects appear transient as repeated exposure to the IHG stimulus improved resting endothelium-dependent vasodilation. acute exercise; isometric training; flow-mediated dilation; blood flow

Published
2006

27. Progressive Damage Modeling of Durable Bonded Joint Technology

Author

Leone, Frank A, Davila, Carlos G, Lin, Shih-Yung, Smeltzer, Stan, Girolamo, Donato, Ghose, Sayata, Guzman, Juan C, and McCarville, Duglas A

Subjects
Composite Materials
Abstract

The development of durable bonded joint technology for assembling composite structures for launch vehicles is being pursued for the U.S. Space Launch System. The present work is related to the development and application of progressive damage modeling techniques to bonded joint technology applicable to a wide range of sandwich structures for a Heavy Lift Launch Vehicle. The joint designs studied in this work include a conventional composite splice joint and a NASA-patented Durable Redundant Joint. Both designs involve a honeycomb sandwich with carbon/epoxy facesheets joined with adhesively bonded doublers. Progressive damage modeling allows for the prediction of the initiation and evolution of damage. For structures that include multiple materials, the number of potential failure mechanisms that must be considered increases the complexity of the analyses. Potential failure mechanisms include fiber fracture, matrix cracking, delamination, core crushing, adhesive failure, and their interactions. The joints were modeled using Abaqus parametric finite element models, in which damage was modeled with user-written subroutines. Each ply was meshed discretely, and layers of cohesive elements were used to account for delaminations and to model the adhesive layers. Good correlation with experimental results was achieved both in terms of load-displacement history and predicted failure mechanisms.

Published
2013

28. Fabrication and Testing of Durable Redundant and Fluted-Core Joints for Composite Sandwich Structures

Author

Lin, Shih-Yung, Splinter, Scott C, Tarkenton, Chris, Paddock, David A, Smeltzer, Stanley S, Ghose, Sayata, Guzman, Juan C, Stukus, Donald J, and McCarville, Douglas A

Subjects
Composite Materials
Abstract

The development of durable bonded joint technology for assembling composite structures is an essential component of future space technologies. While NASA is working toward providing an entirely new capability for human space exploration beyond low Earth orbit, the objective of this project is to design, fabricate, analyze, and test a NASA patented durable redundant joint (DRJ) and a NASA/Boeing co-designed fluted-core joint (FCJ). The potential applications include a wide range of sandwich structures for NASA's future launch vehicles. Three types of joints were studied -- splice joint (SJ, as baseline), DRJ, and FCJ. Tests included tension, after-impact tension, and compression. Teflon strips were used at the joint area to increase failure strength by shifting stress concentration to a less sensitive area. Test results were compared to those of pristine coupons fabricated utilizing the same methods. Tensile test results indicated that the DRJ design was stiffer, stronger, and more impact resistant than other designs. The drawbacks of the DRJ design were extra mass and complex fabrication processes. The FCJ was lighter than the DRJ but less impact resistant. With barely visible but detectable impact damages, all three joints showed no sign of tensile strength reduction. No compression test was conducted on any impact-damaged sample due to limited scope and resource. Failure modes and damage propagation were also studied to support progressive damage modeling of the SJ and the DRJ.

Published
2013

31. The Infrared Imaging Spectrograph (IRIS) for TMT: closed-loop adaptive optics while dithering

Author

Guzman, Juan C., Ibsen, Jorge, Chapin, Edward L., Dunn, Jennifer, Andersen, David, Herriot, Glen, Kerley, Dan, Nakamoto, Takashi, Johnson, Jimmy, Wang, Lianqi, Trancho, Gelys, Chisholm, Eric, Ellerbroek, Brent, Gillies, Kim, Hayano, Yutaka, Larkin, James, Simard, Luc, Sirota, Mark, Suzuki, Ryuji, Weber, Bob, Wright, Shelley, Zhang, Kai, Guzman, Juan C., Ibsen, Jorge, Chapin, Edward L., Dunn, Jennifer, Andersen, David, Herriot, Glen, Kerley, Dan, Nakamoto, Takashi, Johnson, Jimmy, Wang, Lianqi, Trancho, Gelys, Chisholm, Eric, Ellerbroek, Brent, Gillies, Kim, Hayano, Yutaka, Larkin, James, Simard, Luc, Sirota, Mark, Suzuki, Ryuji, Weber, Bob, Wright, Shelley, and Zhang, Kai

Abstract

The InfraRed Imaging Spectrograph (IRIS) is the first-light client instrument for the Narrow Field Infrared Adaptive Optics System (NFIRAOS) on the Thirty Meter Telescope (TMT). IRIS includes three natural guide star (NGS) On-Instrument Wavefront Sensors (OIWFS) to measure tip/tilt and focus errors in the instrument focal plane. NFIRAOS also has an internal natural guide star wavefront sensor, and IRIS and NFIRAOS must precisely coordinate the motions of their wavefront sensor positioners to track the locations of NGSs while the telescope is dithering (offsetting the telescope to cover more area), to avoid a costly re-acquisition time penalty. First, we present an overview of the sequencing strategy for all of the involved subsystems. We then predict the motion of the telescope during dithers based on finite-element models provided by TMT, and finally analyze latency and jitter issues affecting the propagation of position demands from the telescope control system to individual motor controllers.

Published
2018

32. The Infrared Imaging Spectrograph (IRIS) for TMT: advancing the data reduction system

Author

Guzman, Juan C., Ibsen, Jorge, Walth, Gregory L., Wright, Shelley A., Rundquist, Nils-Erik, Andersen, David, Chapin, Edward, Chisholm, Eric, Do, Tuan, Dunn, Jennifer, Ellerbroek, Brent, Gillies, Kim, Hayano, Yutaka, Johnson, Chris, Larkin, James, Nakamoto, Takashi, Riddle, Reed, Simard, Luc, Smith, Roger, Suzuki, Ryuji, Sohn, Ji Man, Weber, Robert, Weiss, Jason, Zhang, Kai, Guzman, Juan C., Ibsen, Jorge, Walth, Gregory L., Wright, Shelley A., Rundquist, Nils-Erik, Andersen, David, Chapin, Edward, Chisholm, Eric, Do, Tuan, Dunn, Jennifer, Ellerbroek, Brent, Gillies, Kim, Hayano, Yutaka, Johnson, Chris, Larkin, James, Nakamoto, Takashi, Riddle, Reed, Simard, Luc, Smith, Roger, Suzuki, Ryuji, Sohn, Ji Man, Weber, Robert, Weiss, Jason, and Zhang, Kai

Abstract

Infrared Imaging Spectrograph (IRIS) is the first light instrument for the Thirty Meter Telescope (TMT) that consists of a near-infrared (0.84 to 2.4 micron) imager and integral field spectrograph (IFS) which operates at the diffraction-limit utilizing the Narrow-Field Infrared Adaptive Optics System (NFIRAOS). The imager will have a 34 arcsec x 34 arcsec field of view with 4 milliarcsecond (mas) pixels. The IFS consists of a lenslet array and slicer, enabling four plate scales from 4 mas to 50 mas, multiple gratings and filters, which in turn will operate hundreds of individual modes. IRIS, operating in concert with NFIRAOS will pose many challenges for the data reduction system (DRS). Here we present the updated design of the real-time and post-processing DRS. The DRS will support two modes of operation of IRIS: (1) writing the raw readouts sent from the detectors and performing the sampling on all of the readouts for a given exposure to create a raw science frame; and (2) reduction of data from the imager, lenslet array and slicer IFS. IRIS is planning to save the raw readouts for a given exposure to enable sophisticated processing capabilities to the end users, such as the ability to remove individual poor seeing readouts to improve signal-to-noise, or from advanced knowledge of the point spread function (PSF). The readout processor (ROP) is a key part of the IRIS DRS design for writing and sampling of the raw readouts into a raw science frame, which will be passed to the TMT data archive. We discuss the use of sub-arrays on the imager detectors for saturation/persistence mitigation, on-detector guide windows, and fast readout science cases (< 1 second).

Published
2018

33. Sustaining the Montage image mosaic engine since 2002

Author

Guzman, Juan C., Ibsen, Jorge, Berriman, Graham B., Good, John C., Guzman, Juan C., Ibsen, Jorge, Berriman, Graham B., and Good, John C.

Abstract

This paper describes how we have sustained the Montage image mosaic engine (http://montage.ipac.caltech.edu) first released in 2002, to support the ever-growing scale and complexity of modern data sets. The key to its longevity has been its design as a toolkit written in ANSI-C, with each tool performing one distinct task, for easy integration into scripts, pipelines and workflows. The same code base now supports Windows, JavaScript and Python by taking advantage of recent advances in compilers. The design has led to applicability of Montage far beyond what was anticipated when Montage was first built, such as supporting observation planning for the JWST. Moreover, Montage is highly scalable and is in wide use within the IT community to develop advanced, fault-tolerant cyber-infrastructure, such as job schedulers for grids, workflow orchestration, and restructuring techniques for processing complex workflows and pipelines.

Published
2018

34. Architecture of the SOXS instrument control software

Author

Guzman, Juan C., Ibsen, Jorge, Brucalassi, Anna, Diner, Oz, Kuncarayakti, Hanindyo, Rubin, Adam, Araiza-durán, José Antonio, Bianco, Andrea, Colapietro, Mirko, D'orsi, Sergio, Fynbo, Johan, Genoni, Matteo, Landoni, Marco, Li Causi, Gianluca, Marafatto, Luca, Pariani, Giorgio, Rappaport, Michael, Turatto, Massimo, Zánmar Sánchez, Ricardo, Ricci, Davide, Baruffolo, Andrea, Salasnich, Bernardo, Fantinel, Daniela, Urrutia, Josefina, Campana, Sergio, Schipani, Pietro, Claudi, Riccardo, D'avanzo, Paolo, Munari, Matteo, Riva, Marco, Capasso, Giulio, Aliverti, Matteo, Ben-ami, Sagi, Cosentino, Rosario, Vitali, Fabrizio, D'alessio, Francesco, Scuderi, Salvatore, Biondi, Federico, Pignata, Giuliano, Mattila, Seppo, Smartt, Stephen, Cappellaro, Enrico, Della Valle, Massimo, Gal-yam, Avishay, Arcavi, Iair, Achrén, Jani, Lehti, Jussi, Hirvonen, Mika, Kumar, Tarun, Kotilainen, Jari, Guzman, Juan C., Ibsen, Jorge, Brucalassi, Anna, Diner, Oz, Kuncarayakti, Hanindyo, Rubin, Adam, Araiza-durán, José Antonio, Bianco, Andrea, Colapietro, Mirko, D'orsi, Sergio, Fynbo, Johan, Genoni, Matteo, Landoni, Marco, Li Causi, Gianluca, Marafatto, Luca, Pariani, Giorgio, Rappaport, Michael, Turatto, Massimo, Zánmar Sánchez, Ricardo, Ricci, Davide, Baruffolo, Andrea, Salasnich, Bernardo, Fantinel, Daniela, Urrutia, Josefina, Campana, Sergio, Schipani, Pietro, Claudi, Riccardo, D'avanzo, Paolo, Munari, Matteo, Riva, Marco, Capasso, Giulio, Aliverti, Matteo, Ben-ami, Sagi, Cosentino, Rosario, Vitali, Fabrizio, D'alessio, Francesco, Scuderi, Salvatore, Biondi, Federico, Pignata, Giuliano, Mattila, Seppo, Smartt, Stephen, Cappellaro, Enrico, Della Valle, Massimo, Gal-yam, Avishay, Arcavi, Iair, Achrén, Jani, Lehti, Jussi, Hirvonen, Mika, Kumar, Tarun, and Kotilainen, Jari

Published
2018

35. SOXS control electronics design

Author

Capasso, Giulio, Achrén, Jani, Colapietro, Mirko, D'orsi, Sergio, Campana, Sergio, Claudi, Riccardo, Schipani, Pietro, Aliverti, Matteo, Baruffolo, Andrea, Ben-ami, Sagi, Biondi, Federico, Brucalassi, Anna, Cosentino, Rosario, D'alessio, Francesco, D'avanzo, Paolo, Diner, Oz, Kuncarayakti, Hanindyo, Munari, Matteo, Rubin, Adam, Scuderi, Salvatore, Vitali, Fabrizio, Araiza-durán, José Antonio, Arcavi, Iair, Bianco, Andrea, Cappellaro, Enrico, Della Valle, Massimo, Fantinel, Daniela, Fynbo, Johan, Gal-yam, Avishay, Genoni, Matteo, Hirvonen, Mika, Kotilainen, Jari, Kumar, Tarun, Landoni, Marco, Lehti, Jussi, Li Causi, Gianluca, Marafatto, Luca, Mattila, Seppo, Pariani, Giorgio, Pignata, Giuliano, Rappaport, Michael, Ricci, Davide, Riva, Marco, Salasnich, Bernardo, Smartt, Stephen, Turatto, Massimo, Zánmar Sánchez, Ricardo, Coretti, Igor, Hershko, Ofir, Guzman, Juan C., Ibsen, Jorge, Capasso, Giulio, Achrén, Jani, Colapietro, Mirko, D'orsi, Sergio, Campana, Sergio, Claudi, Riccardo, Schipani, Pietro, Aliverti, Matteo, Baruffolo, Andrea, Ben-ami, Sagi, Biondi, Federico, Brucalassi, Anna, Cosentino, Rosario, D'alessio, Francesco, D'avanzo, Paolo, Diner, Oz, Kuncarayakti, Hanindyo, Munari, Matteo, Rubin, Adam, Scuderi, Salvatore, Vitali, Fabrizio, Araiza-durán, José Antonio, Arcavi, Iair, Bianco, Andrea, Cappellaro, Enrico, Della Valle, Massimo, Fantinel, Daniela, Fynbo, Johan, Gal-yam, Avishay, Genoni, Matteo, Hirvonen, Mika, Kotilainen, Jari, Kumar, Tarun, Landoni, Marco, Lehti, Jussi, Li Causi, Gianluca, Marafatto, Luca, Mattila, Seppo, Pariani, Giorgio, Pignata, Giuliano, Rappaport, Michael, Ricci, Davide, Riva, Marco, Salasnich, Bernardo, Smartt, Stephen, Turatto, Massimo, Zánmar Sánchez, Ricardo, Coretti, Igor, Hershko, Ofir, Guzman, Juan C., and Ibsen, Jorge

Published
2018

38. The SOXS data-reduction pipeline

Author

Guzman, Juan C., Ibsen, Jorge, Young, David R., Landoni, Marco, Smartt, Stephen J., Campana, Sergio, Claudi, Riccardo, Schipani, Pietro, Aliverti, Matteo, Baruffolo, Andrea, Ben-Ami, Sagi, Biondi, Federico, Capasso, Giulio, Cosentino, Rosario, D'Alessio, Francesco, D'Avanzo, Paolo, Hershko, Ofir, Kuncarayakti, Hanindyo, Munari, Matteo, Pignata, Giuliano, Rubin, Adam, Scuderi, Salvatore, Vitali, Fabrizio, Achrén, Jani, Araiza-Duran, José Antonio, Arcavi, Iair, Brucalassi, Anna, Bruch, Rachel, Cappellaro, Enrico, Colapietro, Mirko, Della Valle, Massimo, De Pascale, Marco, Di Benedetto, Rosario, D'Orsi, Sergio, Gal-Yam, Avishay, Genoni, Matteo, Hernandez, Marcos, Kotilainen, Jari, Li Causi, Gianluca, Mattila, Seppo, Rappaport, Michael, Radhakrishnan, Kalyan, Ricci, Davide, Riva, Marco, Salasnich, Bernardo, Sanchez, Ricardo Zanmar, Stritzinger, Maximilian, and Ventura, Héctor

Published
2020
Full Text
View/download PDF

40. SALT transient science with TOMs

Author

Guzman, Juan C., Ibsen, Jorge, Van Rooyen, Ruby, Maartens, Deneys S., Buckley, David, Kotse, Marissa, Hettlage, Christian, Potter, Stephen, and Street, Rachel

Published
2020
Full Text
View/download PDF

49. Scaling agile for the Square Kilometre Array

Author

Guzman, Juan C., Ibsen, Jorge, Bartolini, Marco, Brederode, Ray, Bridger, Alan, Espada, Daniel, Graser, Ferdl, Harding, Piers, Miccolis, Maurizio, Mohile, Vivek, Mort, Ben, Nuostos, Aristeidis, Rees, Nick, Santander-Vela, Juande, Valame, Snehal, Wortmann, Peter, and Yilmaz, Ugur

Published
2020
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results