6,827 research outputs found
Lightweight One-Time Signature for Short Messages
No full textOne-time signature schemes have been used as an important cryptographic tool for various applications. To generate a signature on a message, the state-of-the-art one-time signature requires roughly one hash function evaluation and one modular multiplication. We propose a new one-time signature scheme for short messages that needs only one integer multiplication (i.e., without modular reduction or hash function evaluation). Theoretically, our construction is based on a generic transformation from identification protocols secure against active attacks into secure one-time signature schemes for short messages, where the Fiat-Shamir technique is not used. To obtain efficient instantiation of the transformation, we prove that the GPS identification protocol is secure against active attacks, which may be of independent interest.open110sciescopu
Book Discussion : PJ Powers
No full textThe UJ Campus Health Services and the Student Affairs Division in partnership with the UJ Library invite you to meet PJ Powers (Thandeka) the co-author of the book HERE I AM About the book: Here I Am, written with Marianne Thamm, is an intimate and hilarious account of the life and times of one of this country’s most recognisable and enduring performers. From the dizzying heights of international stardom to the dark depths of her struggle with alcohol, this is a must-read to explore the heady mix of politics and music of the time. More than just a story about the personal journey of one of South Africa’s most beloved music icons, this extraordinary memoir of PJ Powers – or Thandeka, as she was affectionately renamed by Soweto crowds – is set against the turbulent backdrop of South Africa’s recent political history. It features a gallery of political leaders and international celebrities, including the likes of Nelson Mandela, Graça Machel, Chris Hani, Joaquim Chissano, Queen Elizabeth II, Brenda Fassie, Sharon Stone and Robert De Niro. Facilitator: Prof Alban Burke, Director – PsyCad, University of Johannesburg PJ Powers will also perform a few songs on the day. Date: 27 August 2015 Time: 16:30 for 17:00 Venue: Auditorium (6th Floor), APK Library, University of Johannesburg (corner Kingsway and University Road, Auckland Park) RSVP: By Wednesday, 26 August 2015 to Theodorah Modise on [email protected] / 011 559 226
Book Discussion : PJ Powers
No full textThe UJ Campus Health Services and the Student Affairs Division in partnership with the UJ Library invite you to meet PJ Powers (Thandeka) the co-author of the book HERE I AM About the book: Here I Am, written with Marianne Thamm, is an intimate and hilarious account of the life and times of one of this country’s most recognisable and enduring performers. From the dizzying heights of international stardom to the dark depths of her struggle with alcohol, this is a must-read to explore the heady mix of politics and music of the time. More than just a story about the personal journey of one of South Africa’s most beloved music icons, this extraordinary memoir of PJ Powers – or Thandeka, as she was affectionately renamed by Soweto crowds – is set against the turbulent backdrop of South Africa’s recent political history. It features a gallery of political leaders and international celebrities, including the likes of Nelson Mandela, Graça Machel, Chris Hani, Joaquim Chissano, Queen Elizabeth II, Brenda Fassie, Sharon Stone and Robert De Niro. Facilitator: Prof Alban Burke, Director – PsyCad, University of Johannesburg PJ Powers will also perform a few songs on the day. Date: 27 August 2015 Time: 16:30 for 17:00 Venue: Auditorium (6th Floor), APK Library, University of Johannesburg (corner Kingsway and University Road, Auckland Park) RSVP: By Wednesday, 26 August 2015 to Theodorah Modise on [email protected] / 011 559 226
Short-term changes in drug agglomeration within interactive mixtures following blending
No full textShort-term changes in drug agglomeration within interactive mixtures following blendin
Analisis Fundamental Saham Terhadap Pertumbuhan Saham pada PJ Metal Tahun 2019-2023
No full text
This research aims to analyze the impact of stock fundamentals on stock growth at PJ Metal. PJ Metal has experienced an increase in its financial reports over the past 5 (five) years. Despite an increase in debt, total assets and equity (capital) have also continued to grow. Based on the income statement, it can be seen that the sales growth rate in 2021 reached 92%, which is the highest growth rate. The liquidity ratio measures the company’s ability to pay short-term debt. PJ Metal’s liquidity ratio is above 100%, indicating good liquidity. The leverage ratio measures how much debt the company has compared to its equity. PJ Metal’s leverage ratio is around 50%, which is considered reasonable. However, this leverage ratio is still lower compared to other Korean companies that have higher debt levels. The activity ratio describes how efficiently the company utilizes its assets. Although PJ Metal’s activity ratio decreases every year, the figures are still within the normal range. The profitability ratio includes ROE (Return on Equity) and ROA (Return on Assets). PJ Metal has performed well in both of these ratios, except in 2023. The market value ratio shows that PJ Metal’s earnings per share (EPS) have increased. Based on these financial reports, PJ Metal’s total assets and equity continue to increase despite the decline in PJ Metal’s stock price. Based on this fundamental analysis, it is expected that PJ Metal’s stock price may increase in the future.This research aims to analyze the impact of stock fundamentals on stock growth at PJ Metal. PJ Metal has experienced an increase in its financial reports over the past 5 (five) years. Despite an increase in debt, total assets and equity (capital) have also continued to grow. Based on the income statement, it can be seen that the sales growth rate in 2021 reached 92%, which is the highest growth rate. The liquidity ratio measures the company’s ability to pay short-term debt. PJ Metal’s liquidity ratio is above 100%, indicating good liquidity. The leverage ratio measures how much debt the company has compared to its equity. PJ Metal’s leverage ratio is around 50%, which is considered reasonable. However, this leverage ratio is still lower compared to other Korean companies that have higher debt levels. The activity ratio describes how efficiently the company utilizes its assets. Although PJ Metal’s activity ratio decreases every year, the figures are still within the normal range. The profitability ratio includes ROE (Return on Equity) and ROA (Return on Assets). PJ Metal has performed well in both of these ratios, except in 2023. The market value ratio shows that PJ Metal’s earnings per share (EPS) have increased. Based on these financial reports, PJ Metal’s total assets and equity continue to increase despite the decline in PJ Metal’s stock price. Based on this fundamental analysis, it is expected that PJ Metal’s stock price may increase in the futur
Self-structuring on the autocatalytic network
No full textWe study spatiotemporal dynamics on the autocatalytic network in prebiotic evolution. It is found that a self-organized spatial structure emerges from each cyclic sub-structure. A selection process on the sub-structures demonstrates that the selection occurs at the community level. We also verified that the local spatial organization causes the difference between long-term and short-term fitness behavior
A Differential Transmission Gate Design Flow for Minimum Energy Sub-10-pJ/Cycle ARM Cortex-M0 MCUs
No full textUltra-low voltage operation is key to achieving energy-efficient operation for microcontroller (MCU) systems. Variation resiliency, high speed operation, and short design time are the most important challenges for these systems. This paper overcomes these challenges in a new design strategy that enables standard cell design with differential transmission gate logic. The commercial toolchain is extended with in-house developed add-ons and makes use of two custom libraries with different device lengths to allow high speed vs. low leakage trade-offs. The design flow is used to prototype two highly efficient 32-bit ARM Cortex-M0 MCU systems in 40-nm CMOS. The core of the first prototype scales down to 190 mV and 0.8-MHz and reaches 16.07 pJ/cycle at 31.2-MHz and 440 mV. The second prototype benefits from the dual libraries and reduces core energy consumption by 50% at the same speed performance. Minimum energy operation is thus achieved at an even lower voltage (370 mV) with the M0 core consuming only 8.80 pJ/cycle at 13.7-MHz, breaking the sub-10-pJ/cycle barrier for a 6–35-MHz range.sponsorship: This paper was approved by Guest Editor Eugenio Cantatore. This work was supported by the IWT-Agency for Innovation by Science and Technology. (Corresponding author: Hans Reyserhove.) (IWT-Agency for Innovation by Science and Technology)status: Publishe
Technologically mediated learning: The future of training in Australia
No full textHosie, PJ ORCiD: 0000-0003-2585-024XFollowing a review of the economic imperatives currently facing Australia,
the future directions training will take are examined. Related training issues are considered; such as multiskilling, on-the-job training and legal issues. The author predicts that technologically mediated learning (TML),
especially interactive multimedia, will gain ascendancy as the predominant mode of delivery for training
A 75 pJ/bit All-Digital Quadrature Coherent IR-UWB Transceiver in 0.18 um CMOS
Get PDFIn this paper a 75 pJ/b all-digital quadrature coherent impulse radio ultra-wideband transceiver in 0.18 μm CMOS is presented. It consumes 42 mW operating at a
560 Mbps datarate. The receiver and transmitter share most of the components reducing the area. This design is optimal
for low-power low-cost short-range high-speed communications.Peer ReviewedPostprint (published version
A 75 pJ/bit All-Digital Quadrature Coherent IR-UWB Transceiver in 0.18 um CMOS
No full textIn this paper a 75 pJ/b all-digital quadrature coherent impulse radio ultra-wideband transceiver in 0.18 μm CMOS is presented. It consumes 42 mW operating at a
560 Mbps datarate. The receiver and transmitter share most of the components reducing the area. This design is optimal
for low-power low-cost short-range high-speed communications.Peer ReviewedPostprint (published version
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