1,819 research outputs found
Implementation of WG Stream Cipher with Involution Function
No full textAbstractThis paper present a new hardware design of WelchGong (WG)128 cipher. The proposed WG Stream cipher use an involution function block, for increasing the security of private data. The hardware complexity of involution block is very less. Together with the involution block the randomness property of the resulting WG cipher will increases
Legal aspects of access to Geo-information within Indonesian spatial data infrastructure
No full textGeo-information is a double-edged sword, regarding its powers in providing instant access to vast amounts of data and the opportunity to abuse, to misinform, and to invade the privacy of individuals on a greater scale than ever before [Cho, 1998: 22].Thus, access to geo-information has always become an essential issue on development of a National Spatial Data Infrastructure (NSDI). Legal aspect of access to geo-information is also becoming one of the most important frameworks of Indonesian Spatial Data Infrastructure (ISDI), which is still being developed at this moment. Since there is no available arrangement on accessing geoinformation within ISDI, this paper will explore the most suitable arrangement on legal aspect of access to geo-information by examining the recent progress on legal aspect of access to geo-information in Indonesia and development of ISDI. The recent progress on development of Australian Spatial Data Infrastructure (ASDI), Philippines National Geographic Information Infrastructure (Philippines NGII) and Malaysian Geospatial Data Infrastructure (MyGDI) will be evaluated as well in order to provide recommendation on legal access of access to geo-information within ISDI.OLD Geo-information and Land Developmen
The role of classification and reference vessels in the design of inland fairways for commercial vessels – contribution to the Workshop of WG 141 Design Guidelines for Inland Waterways
No full textThe Pianc WG 141 is proceeding in the conception of Design Guidelines for Inland Waterways. WG 141 aims to produce its first draft in the end of 2015. Part of the forseen content are classification of waterways and the object of reference vessels. The role of those subjects will be presented and discussed in the Workshop, that WG 141 will give during the Smart Rivers 2015 Conference, scheduled at the 8th of September.Hydraulic EngineeringCivil Engineering and Geoscience
The main secondary metabolic pathways between BG and WG.
No full textThe main secondary metabolic pathways between BG and WG.</p
The primary metabolic pathways between BG and WG.
No full textThe primary metabolic pathways between BG and WG.</p
Inhibition of CDC25B With WG-391D Impedes the Tumorigenesis of Ovarian Cancer
No full textNovel inhibitors are urgently needed for use as targeted therapies to improve the overall survival (OS) of patients with ovarian cancer. Here, we show that cell division cycle 25B (CDC25B) is over-expressed in ovarian tumors and associated with poor patient prognosis. All previously reported CDC25B inhibitors have been identified by their ability to reversibly inhibit the catalytic dephosphorylation activity of CDC25B in vitro; however, none of these compounds have entered clinical trials for ovarian cancer therapy. In this study, we synthesized a novel small molecule compound, WG-391D, that potently down-regulates CDC25B expression without affecting its catalytic dephosphorylation activity. The inhibition of CDC25B by WG-391D is irreversible, and WG-391D should therefore exhibit potent antitumor activity against ovarian cancer. WG-391D induces cell cycle progression arrest at the G2/M phase. Half maximal inhibitory concentration (IC50) values of WG-391D for inhibition of the proliferation and migration of eight representative ovarian cancer cell lines (SKOV3, ES2, OVCAR8, OVTOKO, A2780, IGROV1, HO8910PM, and MCAS) and five primary ovarian tumor cell lines (GFY004, GFY005, CZ001, CZ006, and CZ008) were lower than 10 and 1 μM, respectively. WG-391D inhibited tumor growth in nude mice inoculated with SKOV3 cells or a patient-derived xenograft (PDX). The underlying mechanisms were associated with the down-regulation of CDC25B and subsequent inactivation of cell division cycle 2 (CDC2) and the serine/threonine kinase, AKT. In conclusion, this study demonstrates that WG-391D exhibits strong antitumor activity against ovarian cancer and indicates that the down-regulation of CDC25B by inhibitors could provide a rationale for ovarian cancer therapy
IEA SHC Task 42 / ECES Annex 29 WG A1: Engineering and Processing of PCMs, TCMs and Sorption Materials
No full textAn overview on the recent results on the engineering and characterization of sorption materials, PCMs and TCMs investigated in the working group WG A1 “Engineering and processing of TES materials” of IEA SHC Task 42 / ECES Annex 29 (Task 4229) entitled “Compact Thermal Energy Storage” is presented
Pt-AlGaN/GaN HEMT-sensor layout optimization for enhancement of hydrogen detection
No full textThis paper reports on the layout optimization of Pt-AlGaN/GaN HEMT-sensors for enhancing hydrogen sensor performance. Sensors with gate width and length ratios Wg/Lg from 0.25 to 10 were designed, fabricated and tested for the detection of hydrogen gas at 200 °C. Sensitivity, sensing current variation and transient response are directly related to the sensor gate electrode Wg/Lg ratio. The obtained results demonstrated a 217 % increase in sensitivity and 4630 % increase in sensing current variation at 500 ppm H2 for a Wg/Lg from 0.25 to 10. In addition, the detection limit was lowered to 5 ppm. Transient characteristics demonstrated faster sensor response to H2, but slower recovery rates with increasing ratio.Accepted author manuscriptElectronic Components, Technology and Material
A pressure-robust stabilizer-free WG finite element method for the Stokes equations on simplicial grids
No full textThis article was originally published in Electronic Research Archive. The version of record is available at: https://doi.org/10.3934/era.2024158. © 2024 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)A pressure-robust stabilizer-free weak Galerkin (WG) finite element method has been defined for the Stokes equations on triangular and tetrahedral meshes. We have obtained pressure-independent error estimates for the velocity without any velocity reconstruction. The optimal-order convergence for the velocity of the WG approximation has been proved for the L2 norm and the H1 norm. The optimal-order error convergence has been proved for the pressure in the L2 norm. The theory has been validated by performing some numerical tests on triangular and tetrahedral meshes.Yan Yang is supported in part by the Program of Sichuan National Applied Mathematics Center, No. 2023-KFJJ-01-001
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