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A new burst assembly technique for supporting QoS in optical burst switching networks 被引量:2
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作者 阳小龙 党明瑞 +1 位作者 毛幼菊 李乐民 《Chinese Optics Letters》 SCIE EI CAS CSCD 2003年第5期266-268,共3页
This letter proposes a new burst assembly technique for supporting QoS in optical burst switching (OBS) networks. It consists of the adaptive-threshold burst assembly mechanism and QoS-based random offset-time scheme.... This letter proposes a new burst assembly technique for supporting QoS in optical burst switching (OBS) networks. It consists of the adaptive-threshold burst assembly mechanism and QoS-based random offset-time scheme. The assembly mechanism, which is fit well to multi-class burst assembly, not only matches with IP QoS mechanism based on packet classification, and also utilizes fairly and efficiently assembly capacity. Based on token-bucket model and burst segment selective discard (BSSD), the offset-time scheme can smooth the traffic to support OBS QoS. The simulation results show that the technique can improve the performance in terms of packet loss probability (PLP). 展开更多
关键词 QOS IT as A new burst assembly technique for supporting QoS in optical burst switching networks PLP in for
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An Assembly Coastal Building Technique in Port Engineering 被引量:1
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作者 陈育民 刘汉龙 +1 位作者 陈泽 高玉峰 《China Ocean Engineering》 SCIE EI 2009年第2期379-386,共8页
The assembly coastal building technique initiated at home and abroad,is for a novel vertical standing harbor structure.Its main concept is the assembling components which can be combined and locked together to form a ... The assembly coastal building technique initiated at home and abroad,is for a novel vertical standing harbor structure.Its main concept is the assembling components which can be combined and locked together to form a large caisson.Its application and future are discussed for a building.After many years of application and tests,the technique has a high stability,a wide range of application,low workload and fast construction speed.It can be widely applied in future for harbor engineering projects. 展开更多
关键词 assembly techniques frame structure open-ended caisson port engineering
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Applying Technique Assembly to Raise the Production Level of Mechanized Agriculture
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作者 Dai Youzhong Yu Youtai(Northeast Agricultural University,Harbin 150030,P.R.China.) 《Journal of Northeast Agricultural University(English Edition)》 CAS 1996年第1期49-54,共6页
On the basis of accomplishment obtained in the course of mechanized crop production owing to the progress of science and technology,the authors propose further in this paper the target and prineiples of technique asse... On the basis of accomplishment obtained in the course of mechanized crop production owing to the progress of science and technology,the authors propose further in this paper the target and prineiples of technique assembly in agricultural production.A typical high yield model of technique assembly for soybean and wheat production is given as an example. 展开更多
关键词 crop production technique assembly mechanized agriculture
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一种通用静电组装策略用于印刷无机纳米颗粒及其在大面积钙钛矿太阳电池中的应用
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作者 李文杰 褚昭阳 +9 位作者 李豪杰 李丰 邢直 范宝锦 孟祥川 余德见 梁超 章少华 胡笑添 陈义旺 《Science China Materials》 SCIE EI CAS CSCD 2024年第5期1602-1611,共10页
无机纳米颗粒作为一种极具前景的材料,在钙钛矿太阳电池的传输层中得到了广泛应用.然而,无机纳米颗粒易于聚集的特性阻碍了其进一步的发展.在大面积制备过程中,无机纳米颗粒的聚集加剧了“咖啡环效应”,导致薄膜不均匀,使得底部界面性... 无机纳米颗粒作为一种极具前景的材料,在钙钛矿太阳电池的传输层中得到了广泛应用.然而,无机纳米颗粒易于聚集的特性阻碍了其进一步的发展.在大面积制备过程中,无机纳米颗粒的聚集加剧了“咖啡环效应”,导致薄膜不均匀,使得底部界面性能较差,进而影响钙钛矿薄膜的结晶,最终导致整个器件性能下降.为解决这一问题,我们将一种带电聚合物一一聚乙烯亚胺引入至无机纳米颗粒溶液中.聚乙烯亚胺的带电性质对无机纳米颗粒的聚集起到了显著的抑制作用,此外,添加聚乙烯亚胺还增加了无机纳米颗粒溶液的粘度,有助于减少薄膜上的负面咖啡环效应.最终,我们在基于1-cm^(2)正式结构且使用SnO_(2)传输层的器件上实现了23.2%的光电转换效率.为进一步证明这一策略的普适性,我们还将此策略验证基于NiO_(x)传输层的1-cm^(2)反式器件,其转换效率超过20%. 展开更多
关键词 perovskite solar cells inorganic nanoparticles large-area device electrostatic assembly technique
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