R. W. Gardner
A5061777106- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Computational Physics and Python Applications
- Neutrino Physics Research
- Scientific Computing and Data Management
- Advanced Data Storage Technologies
- Cosmology and Gravitation Theories
- Cloud Computing and Resource Management
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Astrophysics and Cosmic Phenomena
- Big Data Technologies and Applications
- advanced mathematical theories
- Parallel Computing and Optimization Techniques
- Migration and Labor Dynamics
- Atomic and Subatomic Physics Research
- Peer-to-Peer Network Technologies
- Magnetic confinement fusion research
- Migration, Ethnicity, and Economy
- Network Security and Intrusion Detection
- Software-Defined Networks and 5G
University of Chicago
2016-2025
Fermi National Accelerator Laboratory
2016-2025
Atlas Scientific (United States)
2024
A. Alikhanyan National Laboratory
2024
The University of Adelaide
2021-2023
University of California, Santa Cruz
2023
University of Illinois Chicago
2017-2020
Transylvania University of Brașov
2020
Albert Ellis Institute
2011
Hewlett-Packard (United States)
2008
Particle physics has an ambitious and broad experimental programme for the coming decades. This requires large investments in detector hardware, either to build new facilities experiments, or upgrade existing ones. Similarly, it commensurate investment R&D of software acquire, manage, process, analyse shear amounts data be recorded. In planning HL-LHC particular, is critical that all collaborating stakeholders agree on goals priorities, efforts complement each other. this spirit, white paper...
The Grid2003 Project has deployed a multivirtual organization, application-driven grid laboratory (Grid3) that sustained for several months the production-level services required by physics experiments of Large Hadron Collider at CERN (ATLAS and CMS), Sloan Digital Sky Survey project, gravitational wave search experiment LIGO, BTeV Fermilab, as well applications in molecular structure analysis genome analysis, computer science research projects such areas job data scheduling. infrastructure...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTautomeric Equilibria. IV. The Basicities of Monosubstituted Azobenzenes. An Acidity Scale in 20% Ethanolic Aqueous Sulfuric Acid1-3H. H. Jaffé and R. W. GardnerCite this: J. Am. Chem. Soc. 1958, 80, 2, 319–323Publication Date (Print):January 1, 1958Publication History Published online1 May 2002Published inissue 1 January 1958https://pubs.acs.org/doi/10.1021/ja01535a017https://doi.org/10.1021/ja01535a017research-articleACS PublicationsRequest reuse...
While the LHC data movement systems have demonstrated ability to move at necessary throughput, we identified two weaknesses: latency for physicists access and complexity of tools involved. To address these, both ATLAS CMS begun federate regional storage using Xrootd. Xrootd, referring a protocol implementation, allows us provide all disk-resident from single virtual endpoint. This "redirector" discovers actual location redirects client appropriate site. The approach is particularly...
We infer the mean optical depth of a sample optically-selected galaxy clusters from Dark Energy Survey (DES) via pairwise kinematic Sunyaev-Zel'dovich (kSZ) effect. The kSZ signal between pairs drawn DES Year-3 cluster catalog is detected at $4.1 \sigma$ in cosmic microwave background (CMB) temperature maps two years observations with SPT-3G camera on South Pole Telescope. After cuts, there are 24,580 $\sim 1,400$ deg$^2$ southern sky observed by both experiments. techniques. inferred...
"The study compares determinants of internal and international migration intentions, drawing upon interview data from a sample adults in Ilocos Norte, largely rural province the Philippines. A regression model is applied to test relative intentions migrate Manila Hawaii. The based on value-expectancy decision making. results document importance subjective expectations related attainment different values goals Hawaii."
In the past year ATLAS Collaboration accelerated its program to federate data storage resources using an architecture based on XRootD with attendant redirection and integration services. The main goal of federation is improvement in access experience for end user while allowing more efficient intelligent use computing resources. Along these advances come existing production services (PanDA pilot services) management (DQ2, next generation, Rucio). Functional testing has been integrated into...
The Grid2003 Project has deployed a multivirtual organization, application-driven grid laboratory ("Grid3") that sustained for several months the production-level services required by physics experiments of Large Hadron Collider at CERN (ATLAS and CMS), Sloan Digital Sky Survey project, gravitational wave search experiment LIGO, BTeV Fermilab, as well applications in molecular structure analysis genome analysis, computer science research projects such areas job data scheduling....
This study compares determinants of internal and international migration intentions, drawing upon interview data from a sample adults in Ilocos Norte, largely rural province the Philippines. A regression model is applied to test relative intentions migrate Manila Hawaii. The based on value-expectancy decision making. results document importance subjective expectations related attainment different values goals
We describe progress on building the SLATE (Services Layer at Edge) platform. The high level goal of is to facilitate creation multi-institutional science computing systems by augmenting canonical Science DMZ pattern with a generic, "programmable", secure and trusted underlayment This platform permits hosting advanced container-centric services needed for higher-level capabilities such as data transfer nodes, software caches, workflow gateway components. uses best-of-breed center...
Inherited from the flexible architecture of Xrootd, Xcache allows a wide range customization through configurations and plugin modules. This paper describes several completed ongoing R&D efforts using in LHC ATLAS distributed computing environment, particular, with data management system Rucio for easy-to-use to improve cache hit rate, replace Squid distribution large files CVMFS, adapt HPC environment lake model efficient access HPCs.
We present two prescriptions for broadband ($ {\sim} 77 - 252\;{\rm GHz} $), millimeter-wave antireflection coatings cryogenic, sintered polycrystalline aluminum oxide optics: one large-format (700 mm diameter) planar and plano-convex elements, the other densely packed arrays of quasi-optical elements-in our case, 5 diameter half-spheres (called "lenslets"). The comprise three layers commercially available, polytetrafluoroethylene-based, dielectric sheet material. lenslet coating is molded...
The SLATE (Services Layer at the Edge) accelerates collaborative scientific computing through a secure container orchestration framework focused on Science DMZ, enabling creation of advanced multi-institution platforms and novel science gateways. goal project is to provide federation platform simplify deployment operation complex often specialized services required by collaborations, utilizing where applicable open source, cloud native tooling such as Kubernetes. This paper outlines design...
We will describe a component of the Intelligent Data Delivery Service being developed in collaboration with IRIS-HEP and LHC experiments. ServiceX is an experiment-agnostic service to enable on-demand data delivery specifically tailored for nearly-interactive vectorized analysis. This work motivated by engineering challenges posed HL-LHC volumes increasing popularity python Spark-based analysis workflows. gives analyzers ability query events dataset metadata. It uses containerized...
The Open Science Grid (OSG) provides a distributed facility where the Consortium members provide guaranteed and opportunistic access to shared computing storage resources. OSG project[1] is funded by National Foundation Department of Energy Scientific Discovery through Advanced Computing program. project specific activities for operation evolution common infrastructure. US ATLAS CMS collaborations contribute depend on as infrastructure contributing World Wide LHC which experiments distribute...