针对E1传输信道的特点,将视频编解码芯片Hi3520D与IP over E1技术结合,设计了一种基于E1信道的视频数据传输系统。该系统以Hi3520D嵌入式Linux系统为平台,采用型号为5CEBA7F23C7的FPGA,配合IP over E1技术,实现IP视频数据在E1信道传输...针对E1传输信道的特点,将视频编解码芯片Hi3520D与IP over E1技术结合,设计了一种基于E1信道的视频数据传输系统。该系统以Hi3520D嵌入式Linux系统为平台,采用型号为5CEBA7F23C7的FPGA,配合IP over E1技术,实现IP视频数据在E1信道传输。详细介绍了各部分功能,给出了整体功能框图,硬件原理框图和软件流程图。实际工程应用表明:该设计简单可靠,可满足单路不高于720P视频数据在E1信道的传输要求,具备较高推广价值。展开更多
The aim of this study was to evaluate the visible loss of sugar cane and the damage to the knuckles, using the John Deere 3520 harvester on three different travel speeds (3.0;4.0 and 5.0 km·h-1), in DIC with five...The aim of this study was to evaluate the visible loss of sugar cane and the damage to the knuckles, using the John Deere 3520 harvester on three different travel speeds (3.0;4.0 and 5.0 km·h-1), in DIC with five repetitions in Campos dos Goytacazes, Rio de Janeiro/Brazil. Each treatment was composed by six lines of harvested cane stumps, with a length of 290 m each. In these six lines, the remains of sugar cane left in the field were collected by placing the sampling frame in two central lines every 50 m, and separating 40 m of edge. The sampling area was surrounded by 2 m wide and 10 m long, totaling 20 m2. To calculate the damage to stumps, a visual methodology by [1], was used, which classifies the damage grade, ranging from 1 to 4. Fifty stumps were assessed randomly for each speed, in a sampling area of 1800 m2. The data were submitted to ANOVA and Tukey test at 5%, in order to compare the effect of different speeds on the losses and damages. There was no significant difference regarding the loss or damage by comparing the different speeds. Therefore, it is more advantageous to use the speed of 5.0 km·h-1, harvesting more in less time and causing the same level of damage.展开更多
Seperation and purifitation of human chorionic gonadotropion (HCG) in theurine sample of early pregnant women by D3520 resin adsorption chromatographyis repaied. The crude product obtained by DEAE - Cellulose 23 and ...Seperation and purifitation of human chorionic gonadotropion (HCG) in theurine sample of early pregnant women by D3520 resin adsorption chromatographyis repaied. The crude product obtained by DEAE - Cellulose 23 and DEAE Sephadex A50 column chromatography showed a high activity of HCG. Furtherpurifikation of the sample by gel filtration chromatography on a Sephadex G75 column gives a final preparation of 6000～ 6500 IU/mg. The preparation meets therequiTements of the pyrogn test in Chinese Law of Pharmacopoeia.展开更多
文摘针对E1传输信道的特点,将视频编解码芯片Hi3520D与IP over E1技术结合,设计了一种基于E1信道的视频数据传输系统。该系统以Hi3520D嵌入式Linux系统为平台,采用型号为5CEBA7F23C7的FPGA,配合IP over E1技术,实现IP视频数据在E1信道传输。详细介绍了各部分功能,给出了整体功能框图,硬件原理框图和软件流程图。实际工程应用表明:该设计简单可靠,可满足单路不高于720P视频数据在E1信道的传输要求,具备较高推广价值。
基金FAPERJ,for the financial support and for the execution of the research study.
文摘The aim of this study was to evaluate the visible loss of sugar cane and the damage to the knuckles, using the John Deere 3520 harvester on three different travel speeds (3.0;4.0 and 5.0 km·h-1), in DIC with five repetitions in Campos dos Goytacazes, Rio de Janeiro/Brazil. Each treatment was composed by six lines of harvested cane stumps, with a length of 290 m each. In these six lines, the remains of sugar cane left in the field were collected by placing the sampling frame in two central lines every 50 m, and separating 40 m of edge. The sampling area was surrounded by 2 m wide and 10 m long, totaling 20 m2. To calculate the damage to stumps, a visual methodology by [1], was used, which classifies the damage grade, ranging from 1 to 4. Fifty stumps were assessed randomly for each speed, in a sampling area of 1800 m2. The data were submitted to ANOVA and Tukey test at 5%, in order to compare the effect of different speeds on the losses and damages. There was no significant difference regarding the loss or damage by comparing the different speeds. Therefore, it is more advantageous to use the speed of 5.0 km·h-1, harvesting more in less time and causing the same level of damage.
文摘Seperation and purifitation of human chorionic gonadotropion (HCG) in theurine sample of early pregnant women by D3520 resin adsorption chromatographyis repaied. The crude product obtained by DEAE - Cellulose 23 and DEAE Sephadex A50 column chromatography showed a high activity of HCG. Furtherpurifikation of the sample by gel filtration chromatography on a Sephadex G75 column gives a final preparation of 6000～ 6500 IU/mg. The preparation meets therequiTements of the pyrogn test in Chinese Law of Pharmacopoeia.
