This article deals with the coexistence of two passive optical standards with video transmission using the CATV technology. The paper shows the cross coexistence of standards that are used for an analysis of critical parameters BER. The results of simulations define border parameters for data services in networks with the BER parameter. The designed model has proven that it is able to transfer ...

Cryptocurrencies, based on and led by Bitcoin, have shown promise as infrastructure for pseudonymous online payments, cheap remittance, trustless digital asset exchange, and smart contracts. However, Bitcoin-derived blockchain protocols have inherent scalability limits that trade-off between throughput and latency and withhold the realization of this potential. This paper presents Bitcoin-NG, a...

Nghiên c?u này ki?m ch?ng tác ??ng c?a qu?n tr? công ty ??n hi?u qu? ho?t các niêm y?t trên th? tr??ng khoán (TTCK) Vi?t Nam giai ?o?n 2008 – 2018. Tác gi? s? d?ng ph??ng pháp GMM v?i b? d? li?u g?m 479 5.269 quan sát. K?t nghiên cho th?y có m?i t??ng thu?n chi?u gi?a quy?n kiêm nhi?m (CEOKN), quy mô ban soát (QMBKS) doanh nghi?p và ng??c thành viên h?i ??ng ??c l?p (TVH?QT?L) nghi?p. xem xét h...

*corresponding author Department of Pathology Beth Israel Deaconess Medical Center 330 Brookline Ave – YA309 Boston MA 02215 617-667-3648 (phone) 617-667-4533 (fax) [email protected] Copyright © 2011, American Society for Microbiology and/or the Listed Authors/Institutions. All Rights Reserved. J. Clin. Microbiol. doi:10.1128/JCM.02595-10 JCM Accepts, published online ahead of print on ...

2019 y?l?n?n son aylar?nda Çin'de ortaya ç?kan yeni tip koronavirüs (Covid-19); k?sa sürede küresel bir salg?na dönü?mesiyle bütün dünyay? etkisi alt?na alm??, dünyan?n dört yan?ndaki e?itim kurumlar?nda, yüz yüze ö?retimden çevrimiçi ö?retime geçi? yap?lmak zorunda kal?nm??t?r. Okullar?n kapat?lmas? ile dünya genelinde sosyo-ekonomik düzeyi dü?ük milyonlarca ö?renci hakk?na eri?ememi?tir. Bu d...

Bài báo trình bày k?t qu? nghiên c?u ch? t?o thi?t b? ?ánh giá tính toàn v?n c?a các công ch?u ?ng l?c nh? ???ng ?ng, áp b?ng cách xác ??nh vùng t?p trung su?t. Thi?t s? d?ng c?m bi?n t? tr??ng 3 tr?c ?? ?o thành ph?n theo h??ng Ox, Oy và Oz trong kho?ng làm vi?c -300 ?T ??n 300 ?T. K?t kh?o sát thông này trên m?u thép API 5L d??i tác su?t kéo cho th?y s? ??i l?n v? t?i ?? giãn dài nh? h?n 1 mm...

The paper describes a prototype decision support/expert system for contractor prequalification, CP-DSS. The system firstly evaluates contractors' capabilities according to the project specific criteria. It then identifies any risk that may be caused by contractors. Finally, contractors are appraised according to their likely performance, management capability, reputation, resources, progress, c...