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Development and application of molecular markers for TSW(thousand-seed weight)related gene BnaGRF7.C02 in Brassica napus
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作者 Jing Zhao Chanyu Jin +7 位作者 Rui Geng Yixuan Xue Minqiang Tang Keming Zhu Yulong Li Duoduo Wang Shengyi Liu Xiaoli Tan 《Oil Crop Science》 CSCD 2021年第3期145-150,共6页
Brassica napus L(rapeseed)is one of the most important oil crops with large cultivated area in China.Seed size and seed weight play crucial roles for yield and harvest.In this study,a type of 15 bp-deletion in BnaGRF7... Brassica napus L(rapeseed)is one of the most important oil crops with large cultivated area in China.Seed size and seed weight play crucial roles for yield and harvest.In this study,a type of 15 bp-deletion in BnaGRF7.CO2 coding region was identified through sequence alignment of BnaGRF7.C02 in 42 rapeseed varieties,and associ-ation analysis indicated that the 15 bp-deletion was related to the rapeseed Thousand-Seed Weight(TSW)phenotype.Furthermore,we developed two InDel markers to identify this 15 bp InDel.The tissue-specific expression patterns showed that BnaGRF7.C02 prominently expressed in the late stage of seed development.These findings may assist in InDel markers-based breeding efforts to select higher TWS varieties and improve the crop yield of B.nqpus. 展开更多
关键词 Brassica napus L. bnagrf7.c02 Thousand-seed weight InDel marker
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基于S7-200的超临界萃取参数的模糊PID控制 被引量:3
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作者 董金善 袁士豪 《微计算机信息》 2009年第19期32-33,76,共3页
PID控制是最早发展起来的控制策略之一,由于其算法简单、可靠性高,被广泛应用于工业过程控制。在实际生产现场中,常规PID控制器参数对运行工况的适应性差。模糊控制与PID控制相比具有不依赖系统数学模型、调节速度快、鲁棒性好等优点,... PID控制是最早发展起来的控制策略之一,由于其算法简单、可靠性高,被广泛应用于工业过程控制。在实际生产现场中,常规PID控制器参数对运行工况的适应性差。模糊控制与PID控制相比具有不依赖系统数学模型、调节速度快、鲁棒性好等优点,但稳态精度欠佳是模糊控制的一个弱点。将这两种控制策略结合起来,取长补短,形成了模糊PID复合控制方法。本文以软代硬,利用西门子公司的S7-200来实现超临界CO2萃取过程的模糊PID控制,提高了萃取过程的稳定性和萃取精度。 展开更多
关键词 PID 超临界c02萃取 模糊控制 S7—200
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基于S3C2410与Linux平台的TFTLCD应用 被引量:4
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作者 张恺 王林斗 《电子测量技术》 2006年第6期97-98,101,共3页
随着嵌入式系统应用的深入,对人机交互界面的要求也越来越高,彩色LCD被越来越多地应用到嵌入式系统中。在彩色LCD中,与STNLCD相比,TFTLCD拥有更出色的色彩饱和度、更高的对比度和更快的响应速度,所以TFTLCD被越来越多的嵌入式系统所应用... 随着嵌入式系统应用的深入,对人机交互界面的要求也越来越高,彩色LCD被越来越多地应用到嵌入式系统中。在彩色LCD中,与STNLCD相比,TFTLCD拥有更出色的色彩饱和度、更高的对比度和更快的响应速度,所以TFTLCD被越来越多的嵌入式系统所应用,为TFTLCD编写驱动程序就成为开发工作的一项重要内容。文中以ARM9内核芯片S3C2410和TFTLCD模块LQ057Q3DC02构建的硬件平台为基础,介绍了在Linux环境下开发嵌入式TFTLCD驱动程序的实用方法,并针对软、硬件设计中应注意的问题进行了阐述。所设计的系统已经通过GUI程序测试,并计划应用于产品。 展开更多
关键词 LINUX S3C2410 LQ057Q3Dc02 2.4.18-rmk7
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The Synthesis and Crystal Structure of [(n-Bu)4N]2 (C20H1402)2M02O7
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作者 LuXiaoming GengZhe TuShujie LiuShuneheng 《首都师范大学学报(自然科学版)》 1997年第2期52-56,共5页
The title eompplex:
关键词 [(n-Bu)4N]2(C20H1402)2M02O7 合成方法 结构研究 晶体
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基于安全隔离的数据单向传输设备设计与实现 被引量:2
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作者 奚建清 熊智 +1 位作者 黄昱兆 何均键 《保密科学技术》 2011年第8期64-67,共4页
该文介绍一种采用通用串行总线USB2.0芯片CY7C68013、FIFO存储器IDT72V02-15实现基于硬件的单向数据传输设备。采用自定义的传输协议对数据转换和传输实行控制,保证数据传输的效率性和可靠性。该设备无须额外的供电电源,无须改造系统,... 该文介绍一种采用通用串行总线USB2.0芯片CY7C68013、FIFO存储器IDT72V02-15实现基于硬件的单向数据传输设备。采用自定义的传输协议对数据转换和传输实行控制,保证数据传输的效率性和可靠性。该设备无须额外的供电电源,无须改造系统,即插即用,体积小,适合办公室桌面环境使用。 展开更多
关键词 单向传输 CY7C68013 FIFO USB2.0 IDT72V02
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Effect of CO2 pneumoperitoneum on the expression of the chemokine receptors CXCR4 and CCR7 in colorectal carcinoma cells in vitro 被引量:4
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作者 YANG Chun-kang LI Guo-dong +1 位作者 Y1NG Min-gang XU Ke 《Chinese Medical Journal》 SCIE CAS CSCD 2013年第24期4747-4751,共5页
Background The ability of pneumoperitoneum in laparoscopic surgery to promote proliferation and metastasis of colorectal cancer has become a focus of research in the field of minimally invasive surgery. The aim of thi... Background The ability of pneumoperitoneum in laparoscopic surgery to promote proliferation and metastasis of colorectal cancer has become a focus of research in the field of minimally invasive surgery. The aim of this research was to investigate the effect of CO~ pneumoperitoneum under different pressures and exposed times on the expression of chemokine receptors in colorectal carcinoma cells. Methods We constructed an in vitro pneumoperitoneum model. SW480 colon carcinoma cells were exposed to CO2 pneumoperitoneum under different pressures (6, 9, 12, and 15 mmHg) for 1, 2, and 4 hours. These cells were then cultivated under the same conditions as normal SW480 colon carcinoma cells without CO= pneumoperitoneum (control group), treated at 37℃, and 5% CO2. The expression of the chemokine receptors CXC receptor 4 (CXCR4) and chemokine C receptor 7 (CCR7) was detected by immunocytochemistry and reverse transcriptase polymerase chain reaction after being cultivated for 0, 24, 48, and 72 hours. Results Immunocytochemistry showed that CXCR4 expression in SW480 cells was significantly decreased in the 6, 9, 12, and 15 mmHg CO2 pneumoperitoneum-treated groups for the same exposure times compared with controls (P 〈0.05). CCR7 expression in SW480 cells was significantly decreased in the 12 and 15 mmHg CO2 pneumoperitoneum- treated groups compared with controls (P 〈0.05). CXCR4 and CCR7 expression increased up to the level of the control group after 24 and 48 hours (P 〉0.05). If the CO2 pneumoperitoneum pressure increased, CXCR4 and CCR7 expression decreased at all exposure times. If the CO2 pneumoperitoneum exposure time prolonged, there were no significant differences in CXCR4 and CCR7 expression under the same pressure. Under all exposure times, CXCR4 and CCR7 mRNA expression was significantly decreased in the 6, 9, 12, and 15 mmHg CO2 pneumoperitoneum-treated groups (P 〈0.05) compared with controls, and it increased up to the level of controls after being cultivated for 48 hours (P 〉0.05). If the CO2 pneumoperitoneum pressure increased (with all exposure times) and exposure time prolonged (under the same pressure), there were no significant differences in CXCR4 and CCR7 expression. Conclusions CXCR4 and CCR7 expression is temporarily affected after continuous CO2 pneumoperitoneum treatment. The high pressure of CO2 pneumoperitoneum plays an important role in suppressing the expression of these chemokine receptors. Different lengths of time of exposure to a CO2 pneumoperitoneum-like environment do not change CXCR4 and CCR7 expression. 展开更多
关键词 colorectal neoplasm c02 pneumoperitoneum chemokine receptor CXC receptor 4 chemokine C receptor 7
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