检索结果-南通市图书馆

Developing phoneme-based lip-reading sentences system for silent speech recognition

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

CAAI Transactions on Intelligence Technology 2023年第1期8卷 129-138页

作者： Randa El-bialy Daqing Chen Souheil Fenghour Walid Hussein Perry Xiao Omar HKaram Bo Li School of Engineering London South Bank UniversityLondonUK Faculty of Informatics and Computer Science British University in EgyptCairoEgypt School of Electronics and Informatics Northwestern Polytechnical UniversityXi'anChina

Lip-reading is a process of interpreting speech by visually analysing lip *** research in this area has shifted from simple word recognition to lip-reading sentences in the *** paper attempts to use phonemes as a classification schema for lip-reading sentences to explore an alternative schema and to enhance system *** classification schemas have been investigated,including characterbased and visemes-based *** visual front-end model of the system consists of a Spatial-Temporal(3D)convolution followed by a 2D *** utilise multi-headed attention for phoneme recognition *** the language model,a Recurrent Neural Network is *** performance of the proposed system has been testified with the BBC Lip Reading Sentences 2(LRS2)benchmark *** with the state-of-the-art approaches in lip-reading sentences,the proposed system has demonstrated an improved performance by a 10%lower word error rate on average under varying illumination ratios.

关键词： deep learning deep neural networks lip-reading phoneme-based lip-reading spatial-temporal convolution,transformers

Petrologic and geochemical characterization and mineralization of the metavolcanic rocks of the Heib Formation,Kid Metamorphic Complex,Sinai,Egypt

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geoscience Frontiers 2011年第3期2卷 385-402页

作者： Ibrahim H.Khalifa Mohammed Z.El-bialy Doa'a M.Hassan Geology Department Faculty of ScienceSuez Canal UniversityIsmailia 41522Egypt Geology Department Faculty of SciencePort Said UniversityPort SaidEgypt

Metavolcanic rocks hosting base metal sulphide mineralization, and belonging to the Kid Metamorphic Complex, are exposed in the Samra-Tarr area, Southern Sinai. The rocks consist of slightly metamorphosed varicolored porphyritic lavas of rhyolite-to-andesite composition, and their equivalent pyroclastics. Geochemically, these metavolcanics are classified as high-K calc-alkaline, metaluminous andesites, trachyandesites, dacites, and rhyolites. The geochemical characteristics of these metavolcanics strongly point to their derivation from continental crust in an active continental margin. The sulphide mineralization in these metavolcanics occurs in two major ore zones, and is represented by four distinct styles of mineralization. The mineralization occurs either as low-grade disseminations or as small massive pockets. The associated hydrothermal alterations include carbonatization, silicification, sericitization and argillic alterations. The base metal sulphide mineralization is epigenetic and was formed by hvdrothermal solutions associated with subduction-related volcanic activity.

关键词： Calc-alkaline Sulphides Mineralization Metavolcanic rocks Sinai

维普期刊数据库

Origin and geochemical characteristics of beryllium mineralization in the Zabara-Wadi El Gemal region,South Eastern Desert,Egypt

在线全文

学校读者我要写书评

暂无评论

Acta Geochimica 2024年第6期43卷 1105-1122页

作者： Gehad M.Saleh Farrage M.Khaleal Mohammed Z.El-bialy Mohamed S.Kamar Mokhles K.Azer Mohamed M.Omar Mohamed N.El Dawy Ahmed Abdelaal El Saeed R.Lasheen Nuclear Materials Authority El-MaadiP.O.Box 530CairoEgypt 2 Geology DepartmentFaculty of SciencePort Said UniversityPort Said 42522Egypt 3 Geological Sciences DepartmentNational Research CentreCairoEgypt 4 Environmental Sciences DepartmentFaculty of SciencePort Said UniversityPort Said 42522Egypt 5 Geology DepartmentFaculty of ScienceAl-Azhar UniversityP.O.Box 11884CairoEgypt

Beryl is the commercial source of beryllium and several varieties of it are valued as a *** contribute to understanding the mechanism of beryl formation,we carried out detailed geological,petrographical,and geochemical investigations on beryl mineralization occurrences in the Zabara-Wadi El Gemal(Z-WG)*** region is an NW-SE trending tract that includes six berylhosting *** green gem variety of beryl(emerald)is restricted to phlogopite schist,pegmatite,and quartz *** hexagonal emerald crystals are well-developed in phlogopite schist and *** gem variety emerald examined is sodic and *** contains high concentrations of chromophore transition elements ordering Cr(up to 1511 ppm)>V(up to 242 ppm)>Sc(up to 245 ppm),giving rise to its vivid green color,refl ecting mafic-ultramafic source *** the investigated emeralds,the Sikait area contains the highest BeO(av.10.76wt.%)*** compositional variability of emeralds is most likely attributed to the contribution from the host *** is revealed by the examined emerald mineralization,for instance;the Abu Rusheid area(one of the best areas exposing rare metal-bearing granitoids)possesses the highest average of trace and REEs *** contrast,Um Kabu emerald has the highest contents of Co(av.20 ppm),Ni(av.299 ppm),MgO(av.8.2wt.%),Fe_(2)O_(3)(av.3.12wt.%),and CaO(avg.3.4wt.%)relative to other areas,which may be linked to contribution of ultramafic rocks exposed *** proposed mechanism we suggest for emerald genesis is metasomatic interaction between felsic intrusions,that are enriched with K,Na,Be,Li,and B,with mafic-ultramafic rocks that are enriched in Cr,V,Mg,Fe,and *** interaction is marked by the formation of phlogopite schist,the growth of emerald crystals,and desilicated pegmatite.

关键词： Beryl chemistry Emerald genesis Phlogopite schist Pegmatite Eastern Desert

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

电梯行业安全性评价方面的创新进展

中国电梯 2010年第15期21卷 23-28页

作者： Louis bialy（）行武奇（译）《中国电梯》杂志社西北客服中心

世界经济全球化日益加剧导致了两个与电梯行业相关的效应：对所有电梯同等级安全性的普遍期待；世界范围内对于安全、可靠、创新产品的需求。对于那些基于新技术的电梯，在国际标准化组织的框架内，一个确保既安全又能促进革新的流程正... 详细信息

世界经济全球化日益加剧导致了两个与电梯行业相关的效应：对所有电梯同等级安全性的普遍期待；世界范围内对于安全、可靠、创新产品的需求。对于那些基于新技术的电梯，在国际标准化组织的框架内，一个确保既安全又能促进革新的流程正在制订当中。

关键词：安全性评价电梯行业创新产品国际标准化组织世界范围经济全球化新技术框架

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生态发展趋势与电梯工业

中国电梯 2009年第8期20卷 58-61页

作者： Louis bialy 行武奇（译）《中国电梯》西北联络处

本文是以2008年9月在德国赫尔本市召开的欧洲电梯大会上所递交并在后期的刊物上发表的论文为基础。经赫尔本E．V．技术学会和欧洲电梯大会的许可，刊出此文。在此表示感谢。

关键词：电梯工业发展趋势生态欧洲

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

B细胞淋巴因子

国际免疫学杂志 1987年第5期10卷 261-263页

作者： Harvey bialy ,孙其岭

免疫系统在对抗原刺激应答时,B细胞克隆扩增及分化的特异性越来越多地归因于宿主的可溶性因子。1985年TadamitsuKishimoto在一篇文章中讨论了BCGF-Ⅰ、BCGF-Ⅱ、BCDFs-γ、μ,BCDF、BRF、BMF和BSF等关于B细胞生长、分化、增殖、成熟和... 详细信息

免疫系统在对抗原刺激应答时,B细胞克隆扩增及分化的特异性越来越多地归因于宿主的可溶性因子。1985年TadamitsuKishimoto在一篇文章中讨论了BCGF-Ⅰ、BCGF-Ⅱ、BCDFs-γ、μ,BCDF、BRF、BMF和BSF等关于B细胞生长、分化、增殖、成熟和刺激因子。在抗原与淋巴细胞受体结合所触发的反应中,信号不仅仅起放大作用,淋巴因子涉及了从B细胞早期激活到最终分化成抗体生

关键词：细胞分泌白细胞介素小鼠 IgE 结合因子 IL 小家鼠淋巴因子 cDNA 抑制因子