scispace - formally typeset
Search or ask a question
Institution

Worcester Polytechnic Institute

EducationWorcester, Massachusetts, United States
About: Worcester Polytechnic Institute is a education organization based out in Worcester, Massachusetts, United States. It is known for research contribution in the topics: Population & Data envelopment analysis. The organization has 6270 authors who have published 12704 publications receiving 332081 citations. The organization is also known as: WPI.


Papers
More filters
Journal ArticleDOI
TL;DR: The PACS-Unlicensed B (PACS-UB) as mentioned in this paper is a version of PACS using time division duplexing, optimized for private, indoor wireless PBX applications and cordless telephony.
Abstract: The Personal Access Communications System (PACS) is an American National Standards Institute common air interface standard developed for the 1.9 GHz PCS band in the United States. PACS uses frequency division duplexing technology and is optimized to support low-mobility pedestrian outdoor usage and wireless local loop applications in a medium-range environment. PACS-Unlicensed B (PACS-UB) is a version of PACS using time division duplexing. PACS-UB has been optimized for private, indoor wireless PBX applications and cordless telephony. Both modes of operation are supported using the same portable hardware and the same signaling protocol.

94 citations

Journal ArticleDOI
TL;DR: The structure of the CopA ATP binding domain (ATPBD) provides a basis for understanding the likely structural and functional effects of various mutations that lead to Wilson and Menkes diseases.

94 citations

Journal ArticleDOI
TL;DR: It was found that the solubility of H in PdAg is higher than pure Pd with a maximum at approximately 30% Ag at 456 K, and the solubsility of PdAu alloys was higher thanpure PD with amaximum at about 20% Au with a solubilities 12 times higher than that ofpure Pd.
Abstract: The present work deals with the study of palladium-silver (PdAg) and palladium-gold (PdAu) binary alloys over a broad range of temperatures and alloy compositions using density functional theory (DFT) to find possible conditions where the solubility of hydrogen (H) is significantly higher than that of pure palladium (Pd). Several alloy structures, such as Pd(100-x)Ag(x) with x = 14.81, 25.93, 37.04, and 48.51, Pd(100-x)Aux with x = 14.81, 25.93, and 37.04, and Pd(100-x)Cu(x) with x = 25.93 and 48.51 were considered. The lattice constants of these structures were optimized using DFT, and relaxed structures were used for the estimation of binding energy. It was found that the solubility of H in PdAg is higher than pure Pd with a maximum at approximately 30% Ag at 456 K. Also, the solubility of PdAu alloys was higher than pure Pd with a maximum at about 20% Au with a solubility 12 times higher than that of pure Pd. It was found that for a 3.7% H concentration in a PdAg alloy, a cell expansion of 0.15-0.2% occurs, which if ignored may affect the individual binding energy of the O-site by approximately 3.56% and may affect the predicted solubility by approximately 11.8%.

94 citations

Journal ArticleDOI
TL;DR: It is shown that high-throughput functional assays targeting fungal adhesion can provide chemical probes for study of multiple aspects of fungal pathogenesis and use chemical genetic experiments to show that it acts downstream of multiple signaling pathways.
Abstract: Infection by pathogenic fungi, such as Candida albicans, begins with adhesion to host cells or implanted medical devices followed by biofilm formation. By high-throughput phenotypic screening of small molecules, we identified compounds that inhibit adhesion of C. albicans to polystyrene. Our lead candidate compound also inhibits binding of C. albicans to cultured human epithelial cells, the yeast-to-hyphal morphological transition, induction of the hyphal-specific HWP1 promoter, biofilm formation on silicone elastomers, and pathogenesis in a nematode infection model as well as alters fungal morphology in a mouse mucosal infection assay. We term this compound filastatin based on its strong inhibition of filamentation, and we use chemical genetic experiments to show that it acts downstream of multiple signaling pathways. These studies show that high-throughput functional assays targeting fungal adhesion can provide chemical probes for study of multiple aspects of fungal pathogenesis.

94 citations

Journal ArticleDOI
TL;DR: In this article, the effect of magnesium and silicon additions to aluminum, free silicon on the SiC substrate, nitrogen gas in the atmosphere, and process temperature on the wetting characteristics of SiC by aluminum alloys were investigated using the sessile drop technique.
Abstract: The effect of magnesium and silicon additions to aluminum, free silicon on the SiC substrate, nitrogen gas in the atmosphere, and process temperature on the wetting characteristics of SiC by aluminum alloys are investigated using the sessile drop technique The contribution of each of these parameters and their interactions to the contact angle, surface tension, and driving force for wetting are determined In addition, an optimized process for enhanced wetting is suggested and validated Results show that the presence of free silicon on the surface of SiC significantly reduces the contact angle between the molten alloy and the substrate The positive effect of silicon on the contact angle is attributed to a chemical reaction in which both SiC and aluminum are active participants The results also indicate that nitrogen gas in the atmosphere positively influences the liquid/vapor surface tension, and the presence of magnesium in the aluminum alloy favorably affects the overall driving force for wetting A mechanism is proposed to explain the beneficial role that the interaction of nitrogen with magnesium plays in enhancing wetting Magnesium significantly reduces the surface tension of aluminum melts but has a low vapor pressure Consequently, it readily volatilizes during holding at the processing temperature and is lost from the alloy It is proposed that a series of chemical reactions in the system Al-Mg-N are responsible for reintroducing magnesium into the melt, thus, maintaining a low melt surface tension Interactions between the aluminum alloy and the silicon carbide substrate that may lead to the dissolution of the substrate and the formation of undesirable reaction products, particularly Al4C3, are examined, and means for mitigating their formation are outlined

93 citations


Authors

Showing all 6336 results

NameH-indexPapersCitations
Andrew G. Clark140823123333
Ming Li103166962672
Joseph Sarkis10148245116
Arthur C. Graesser9561438549
Kevin J. Harrington8568233625
Kui Ren8350132490
Bart Preneel8284425572
Ming-Hui Chen8252529184
Yuguang Fang7957220715
Wenjing Lou7731129405
Bernard Lown7333020320
Joe Zhu7223119017
Y.S. Lin7130416100
Kevin Talbot7126815669
Christof Paar6939921790
Network Information
Related Institutions (5)
Georgia Institute of Technology
119K papers, 4.6M citations

94% related

Carnegie Mellon University
104.3K papers, 5.9M citations

93% related

Massachusetts Institute of Technology
268K papers, 18.2M citations

91% related

University of Illinois at Urbana–Champaign
225.1K papers, 10.1M citations

91% related

Purdue University
163.5K papers, 5.7M citations

91% related

Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202326
202295
2021762
2020836
2019761
2018703