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微涡旋低脉动技术用于油田生活污水处理中试研究 被引量:1
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作者 李怀印 李宏伟 +3 位作者 王银周 朱晖 赵建东 赵立功 《油气田地面工程》 北大核心 2003年第5期27-28,共2页
室内试验结果表明,采用混凝沉淀强化一级技术进行油田独立矿区低浓度生活污水处理,主要污染物去除率均较高,能够达到二级排放标准。中试采用哈尔滨建筑大学多相工艺中心研制的微涡旋低脉动成套水处理设备进行,与室内烧杯试验相比,在节... 室内试验结果表明,采用混凝沉淀强化一级技术进行油田独立矿区低浓度生活污水处理,主要污染物去除率均较高,能够达到二级排放标准。中试采用哈尔滨建筑大学多相工艺中心研制的微涡旋低脉动成套水处理设备进行,与室内烧杯试验相比,在节省药耗20%的同时污染物去除率提高15%左右,表面负荷能够达到7.2m3/(m2·h)。水力停留时间1h,在PAC加量6—8m/L(以Al2O3计) 时,SS、CODcr、BOD1去除率分别达到93%、83%、49%。 展开更多
关键词 涡旋低技术 油田生活污水处理 中试 研究 混凝沉淀
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多光束干涉光纤FP探针脉动微压传感研究 被引量:2
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作者 张雯 熊洁 +2 位作者 李昊业 韩静 祝连庆 《仪器仪表学报》 EI CAS CSCD 北大核心 2022年第7期82-93,共12页
本文提出一种面向脉动微压传感的多光束干涉光纤法布里-珀罗(FP)探针。建立探针多光束干涉波长漂移与微压传感模型,分析其在气、液相环境中微压灵敏度差异。采用化学腐蚀、放电熔接、精密切割技术制备光纤探针器件。利用医用注射器、透... 本文提出一种面向脉动微压传感的多光束干涉光纤法布里-珀罗(FP)探针。建立探针多光束干涉波长漂移与微压传感模型,分析其在气、液相环境中微压灵敏度差异。采用化学腐蚀、放电熔接、精密切割技术制备光纤探针器件。利用医用注射器、透明柔性软管、石英插芯构建微压测试环境,通过有限元仿真分析测试环境内部压强分布情况,在气相环境压强范围14.41~85.22 kPa、液相环境压强范围4.50~26.02 kPa的测试条件下,对3支光纤探针微压传感特性进行分析。实验结果表明,气、液相环境中,探针波长均随压强增大发生红移现象,反之,发生蓝移现象;气相环境探针平均微压灵敏度可达8.210 pm·kPa,液相环境探针平均微压灵敏度可达66.720 pm·kPa,高于气相环境,与理论模型相符。选取气、液相环境中微压灵敏度最高的光纤探针进行液相脉动微压传感特性研究。实验结果表明,5个脉动周期内探针波长响应良好,且重复性误差较小。本文提出的光纤探针结构紧凑,易于制备,灵敏度高,可实现1 Hz频率范围内的脉动微压传感,为液相环境脉动微压传感提供了重要的参考价值。 展开更多
关键词 光纤传感 多光束干涉 法布里-珀罗探针 压传感
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集成式三相流脉动微混合芯片
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作者 刘国君 马祥 +3 位作者 杨志刚 王聪慧 吴越 王腾飞 《吉林大学学报(工学版)》 EI CAS CSCD 北大核心 2018年第4期1063-1071,共9页
为适用于较复杂的混合体系和实现芯片的集成化,基于压电驱动技术提出一种集成式三相流脉动微混合芯片。以混合度作为微混合效果的评定指标,对其进行仿真优化分析,优选出微混合芯片的结构参数与工作参数。利用注模法与键合工艺制作出尺寸... 为适用于较复杂的混合体系和实现芯片的集成化,基于压电驱动技术提出一种集成式三相流脉动微混合芯片。以混合度作为微混合效果的评定指标,对其进行仿真优化分析,优选出微混合芯片的结构参数与工作参数。利用注模法与键合工艺制作出尺寸为100 mm×50mm×5mm的微混合芯片。利用银纳米粒子的液相合成对该芯片的混合性能进行实验验证。结果表明:当微混合芯片的混合流道宽度为0.4mm、入口流道夹角为120°、频率为200Hz、入口流量为3.5mL/min时,利用该芯片可控合成了粒径约29nm、产率较高、单分散性较好的银纳米粒子,证明该芯片具有良好的混合性能。 展开更多
关键词 流体传与控制 压电驱 三相流 混合 银纳米粒子
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微涡旋低脉动技术处理青海油田含油污水试验
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作者 莫志庭 赵进 +4 位作者 马建兵 何启阳 解统平 李昀龙 星占龙 《油气田地面工程》 2015年第7期23-25,共3页
采用微涡旋低脉动技术对含油污水进行处理可以形成立体接触絮凝,增大含油污水的排放量及清洁度,在密实的微涡旋流的作用下,微涡旋低脉动技术将不断更新处理反应器的絮凝能力,从而有利于污水沉淀物的分解、分离及排放。青海油田乌南作业... 采用微涡旋低脉动技术对含油污水进行处理可以形成立体接触絮凝,增大含油污水的排放量及清洁度,在密实的微涡旋流的作用下,微涡旋低脉动技术将不断更新处理反应器的絮凝能力,从而有利于污水沉淀物的分解、分离及排放。青海油田乌南作业区位于柴达木盆地绿草滩,其油田含油污水处理过程中在水质沉淀区使用了微涡旋低脉动技术。逆向流水质沉淀区的表面负荷率稳定在6.5 m3/s的情况下,能够加快各项指标的污染物去除率,污染物去除率可高达75%以上;而顺向流水质沉淀区的表面负荷率稳定在5.8 m3/s的情况下,污染物去除率高达85%以上。微涡旋低脉动技术用于青海油田乌南作业区的含油污水处理,大幅度提高了污染物的去除率。 展开更多
关键词 涡旋低技术 混凝 作业区 污水 工艺
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现代谱分析在识别脉动信号中的应用
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作者 朱长春 何彩英 +1 位作者 李虹 张景绘 《强度与环境》 1999年第4期58-63,共6页
功率谱密度被广泛地应用于分析平稳时间序列,随着现代谱分析技术的发展,经典谱分析技术的缺点得到解决。本文对现代谱分析技术的特点作了论述,利用最大熵谱法分辨率高,特别适用于短数据序列及低信噪比弱信号的特点。通过对几组实测... 功率谱密度被广泛地应用于分析平稳时间序列,随着现代谱分析技术的发展,经典谱分析技术的缺点得到解决。本文对现代谱分析技术的特点作了论述,利用最大熵谱法分辨率高,特别适用于短数据序列及低信噪比弱信号的特点。通过对几组实测的地脉动响应数据的对比分析,获得了信号的功率话密度(PSD),借助PSD识别出结构的模态频率,而用经典谱方法无法获得。 展开更多
关键词 谱分析 微脉动 冲响应 时序分析
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应用微压探测诊断燃烧状况的试验研究 被引量:17
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作者 高翔 骆仲泱 +3 位作者 陈亚非 周劲松 倪明江 岑可法 《动力工程》 EI CSCD 1998年第4期27-31,14,共6页
利用压力传感器进行了燃烧状态诊断的试验研究。提出了一种通过压力脉动信号分析燃烧状态的简单有效方法,该方法对归一化后压力脉动信号作线性回归并计算回归直线斜率K,根据K值对燃烧状态进行分类判断。研究发现,随K值的增大燃烧... 利用压力传感器进行了燃烧状态诊断的试验研究。提出了一种通过压力脉动信号分析燃烧状态的简单有效方法,该方法对归一化后压力脉动信号作线性回归并计算回归直线斜率K,根据K值对燃烧状态进行分类判断。研究发现,随K值的增大燃烧状态趋于不稳定,对于本实验炉当|K|>0.6时为燃烧状态处于的熄火和点火剧变过程,而|K|∈[0.3,0.6)则燃烧处于不稳定状态,只有|K|<0.15时燃烧状态才基本稳定。通过频谱分析发现,当频带具有3Hz以下的低频能量富集区时该燃烧状态不稳定。以上结果可用于实际燃烧设备的燃烧监测与管理系统中。 展开更多
关键词 锅炉 燃烧系统 燃烧状况 频谱分析
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十二、毫赫和毫微赫地震学
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作者 陈培善 《国际地震动态》 1994年第6期24-24,共1页
十二、毫赫和毫微赫地震学在研究地球结构和动力学方面的某些问题时最好用极低频的地震资料。该专题包括了这种观测和研究的各种现象。如:什么是低频地震噪声和微脉动的重要来源?什么技术能识别和确定它们的位置?什么是慢地震和寂静... 十二、毫赫和毫微赫地震学在研究地球结构和动力学方面的某些问题时最好用极低频的地震资料。该专题包括了这种观测和研究的各种现象。如:什么是低频地震噪声和微脉动的重要来源?什么技术能识别和确定它们的位置?什么是慢地震和寂静地震的观测证据,以及它们和普通地震... 展开更多
关键词 地震噪声 寂静地震 毫赫 微脉动 倾斜仪 地球物理研究 地震学 慢地震 观测证据 热带气旋
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Studies on Mitomycin C Dextran-microspheres 被引量:1
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作者 魏树礼 孙贻春 +4 位作者 张敬石 谭惟薇 谢敬霞 李选 朱建纲 《Journal of Chinese Pharmaceutical Sciences》 CAS 1992年第1期33-40,共8页
In this paper,the preparation and properties of mitomycin C dextran-microspheres(MMC-DMS)were reported.The characteristics of pharmacokinetics and embolization effects of MMC-DMS in vivo were studied in dogs.The avera... In this paper,the preparation and properties of mitomycin C dextran-microspheres(MMC-DMS)were reported.The characteristics of pharmacokinetics and embolization effects of MMC-DMS in vivo were studied in dogs.The average diameter of the microspheres was 75±19μm and the content was 5% of MMC.In in vitro experiment, the release rate of drug demonstrated that the microspheres had sustained-release properties. The microspheres and conventional MMC were infused into the hepatic artery of dogs through a catheter for embolization,respectively.The plasma concentration of MMC was de- termined by HPLC.Results showed that the peak concentration of conventional MMC was 2.6 times as much as MMC-DMS.Angiograms revealed that peripheral blood vessels de- creased obviously in liver.The histopathologic examination showed that the microspheres lodged in the hepatic artery and displayed nodular necrosis in the embolized segment.The MMC-DMS were used in clinical trial in 100 patients with hepatic cancer.The tumor reduc- tion and improvement of symptoms in patients were observed after hepatic arterial embolization.The survival duration was prolonged.Results showed that the MMC-DMS is a promising embolic agent for treatment of hepatic cancer.It could aid in the use of intensive chemotherapy with minimum systemic side effect. 展开更多
关键词 Mitomycin C Mitomycin C dextran-microspheres Hepatic arterial embolization Hepatic cancer
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Studies on Adriamycin Magnetic Gelatin Microspheres
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作者 吴传斌 魏树礼 +5 位作者 卢炜 何素梅 高文伟 王田力 李选 谢敬霞 《Journal of Chinese Pharmaceutical Sciences》 CAS 1995年第1期1-7,共7页
The preparation and properties of adriamycin magnetic gelatin microspheres(Adr- MG-ms)were reported.The synthesis of magnetic iron oxide ultrafine particle and embolization effects of magnetic gelatin microspheres(MG-... The preparation and properties of adriamycin magnetic gelatin microspheres(Adr- MG-ms)were reported.The synthesis of magnetic iron oxide ultrafine particle and embolization effects of magnetic gelatin microspheres(MG-ms)in dog were studied.Adr- MG-ms consist of 2%(w/w)of adriamycin(Adr)as the core,and 68% of gelatin and 30% of magnetite as the shell with a mean particle size of 22 μm. In vitro experiment,the release rate of drug demonstrated that the microspheres have sustained-release properties.The average diameter of magnetic iron oxide was approximately l0 nm. Transcatheter embolization with MG-ms and  ̄(99m)Tc-labelled MG-ms was performed under external magenet control in dog liver,respectively.Gamma photography and angiogram revealed that MG-ms level was almost equal both in left and right hepatic arteries without magnet,while with magnet(1200 Gs),MG-ms level in left hepatic artery(target site)was about 2.25 fold higher than in right hepatic artery,and few MG-ms in thyroid gland,brain and heart was observed.Results showed that the MG-ms is a promising embolic agent for treatment of hepatic cancer under external magnet control. 展开更多
关键词 ADRIAMYCIN Adriamycin magnetic gelatin microspheres Magnetic gelatin microspheres Hepatic arterial embolization
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写作的价值及其达成 被引量:1
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作者 陈宝贵 《中学语文(教学大参考)(上旬)》 2017年第4期29-32,共4页
一、信息时代与作文教学的困境美国教育家韦斯特说:信息社会,“写作,包围着你”。确乎如此,社会已经进入大数据时代,互联网实现了人类信息交流的最大化、便捷化。一个微屏。便能显现着世界风云的巨大变化,便能传输着个人情感的细微脉... 一、信息时代与作文教学的困境美国教育家韦斯特说:信息社会,“写作,包围着你”。确乎如此,社会已经进入大数据时代,互联网实现了人类信息交流的最大化、便捷化。一个微屏。便能显现着世界风云的巨大变化,便能传输着个人情感的细微脉动。它浩瀚、奇妙、变化多端,这些信息大都是通过文字或必须经过文字的辅助才得以流传,得以定格。 展开更多
关键词 作文指导 微脉动 信息时代 个人情感 语文作文 写作兴趣 信息交流 文章结构 误尽苍生 教学观
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The Preliminary Study of Certain Pharmacological Effects of Xi Xin Oil 被引量:2
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作者 胡月娟 徐军 纪绿屏 《Journal of Chinese Pharmaceutical Sciences》 CAS 1993年第2期156-158,共3页
细辛油能松弛兔离体主动脉条,使去甲肾上腺素所致主动脉收缩的量效曲线右移并效能降低;使离体兔耳灌流量减少;能延长小鼠常压耐缺氧时间;用其1/2 LD_(50)之剂量腹腔注射给药3天,可致小鼠骨髓微核形成增加。
关键词 Xi Xin Oil Aorta strip Anoxia tolerance Micronucleus test
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Mitoxantrone Ethylcellulose Microspheres for Liver Arte-rial Embolization
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作者 张志荣 王丹 +1 位作者 廖方义 廖工铁 《Journal of Chinese Pharmaceutical Sciences》 CAS 1996年第4期200-206,共7页
Herein,the orthogonal test was used to optimize the preparation conditions and technique of mitoxantrone ethylcellulose microsphere fDHAQ-EC-MS)for liver arterial embolization.The dynamic dialysis method was used to s... Herein,the orthogonal test was used to optimize the preparation conditions and technique of mitoxantrone ethylcellulose microsphere fDHAQ-EC-MS)for liver arterial embolization.The dynamic dialysis method was used to study the drug release characteristics ofthe DRAQ-EC-MS.The suspension of DHAQ-EC-MS for clinical liver arterial embolization was prepared.The results show that the DHAQ-EC-MS is regular in morphology with a mean diameter of 110.24 ± 38.19μm and 86.5% of them within the range of 40-150μm,The drug loading is 12.5% and the embedding ratio is 55.6%. The release characteristics were in accordance with the single exponential model.The drug release equation is log(Y∞-Y)=-0.116t-1.198 × 10 ̄(-3)(r=0.9992,t(50)=2.6h).The suspension is ofstable physical and chemical properties and is suitable for clinical use. 展开更多
关键词 Mitoxantrone Ethylcellulose microsphere Liver arterial embolization
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Preparation and characterization of 9-nitrocamptothecin self-emulsifying microemulsion injection 被引量:2
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作者 吕娟丽 王坚成 +1 位作者 张烜 张强 《Journal of Chinese Pharmaceutical Sciences》 CAS 2007年第3期157-161,共5页
Aim To prepare a self-emulsifying microemulsion of 9-nitrocamptothecin (9-NC ME) for intravenous injection and investi- gation of its pharmacokinetic profiles in normal SD rats. Methods 9-NC ME was optimized in term... Aim To prepare a self-emulsifying microemulsion of 9-nitrocamptothecin (9-NC ME) for intravenous injection and investi- gation of its pharmacokinetic profiles in normal SD rats. Methods 9-NC ME was optimized in terms of droplet size and lack of drug precipitation following aqueous dilution using a pseudo-ternary phase diagram. Physicochemical properties of 9-NC ME were evaluated. 9-NC ME was intravenously administered via tail vein in healthy rats. Results A stable microemulsion was formulated consisted of soybean oil as oil phase, EPC/Tween-80 as emulsifier, and anhydrous ethanol as co-emulsifier. The droplets of the microemulsion were spherical shape with mean diameter of 38.3 ± 4.0 nm after 1:20 dilution with 5% glucose injection. The pharmacokinetic parameters of 9-NC ME after intravenous administration in rats were t1/2 of 0.97 ± 0.14 h, A UC0-8 of 372.77 ±49.62 ng·h·mL^-1 and MRT of 1.40 ± 0.21 h which were 1.4-fold, 1.65-fold, and 1.4-fold more than those of 9-NC solution (P〈0.01). Conclusion The results suggested that 9-NC ME was a promising drug delivery system and it was expected to provide a novel 9-NC injection for cancer patients. 展开更多
关键词 9-NITROCAMPTOTHECIN Self-emulsifying microemulsion INJECTION PHARMACOKINETICS
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头东脚西睡觉好
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作者 晓航 《现代农业科学》 1996年第8期34-34,共1页
印度马德拉医学院生物学教授苏布拉瓦尼在一个科学研讨会上发表论文指出,人在睡觉时最好使头部朝东,即头东脚西为好。他说:这是因为在地球上经常产生瞬间的磁场扰乱。
关键词 科学研讨会 发表论文 生物学 物质 地球磁场 微脉动 正常行为 医学院 情绪激 印度
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The Global Solutions of Impulsive Retarded Functional Differential Equations
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作者 王儒智 孙建安 《Chinese Quarterly Journal of Mathematics》 CSCD 2001年第3期94-99,共6页
In this paper, we present some results on the existence of the golbal solutions of nonlinear impulsive retarded functional differential equations.
关键词 Fréchet spaces Tychonoff fixed point Theorem impulsive retarded functional differential equations
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Positive expression and correlation of chemokine receptor CXCR4 with nodal metastasis and prognosis in colorectal cancer
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作者 Kashif Iqbal 《The Chinese-German Journal of Clinical Oncology》 CAS 2007年第6期552-556,共5页
Objective: Colorectal cancer is one of the leading causes of cancer related deaths, with recurrence and metasta- sis as the primary reasons for mortality. New evidence has implicated chemokines as the likely cause. We... Objective: Colorectal cancer is one of the leading causes of cancer related deaths, with recurrence and metasta- sis as the primary reasons for mortality. New evidence has implicated chemokines as the likely cause. We studied the positive expression of CXCR4 chemokine receptors in colorectal carcinoma and investigated its correlations to clinicpathological char- acteristics and prognosis. Methods: Tumor tissue specimens of patients with colorectal carcinoma (n = 67) who underwent surgery from January 2003 to December 2004 at the Department of Surgery, Tongji Hospital were collected. CXCR4 expres- sion levels and tumor microvessel density were evaluated by immunohistochemistry. Specimens were immunostained using formalin-fixed, paraffin-embedded tissues. The correlation between the CXCR4 expression and clinicopathological factors was evaluated. Results: In 67 cancer tissue specimens, CXCR4 was positively expressed in 38 cases, positive rate being 56.7%. Positive expression of CXCR4 is associated with an increasing incidence of nodal involvement, higher clinic stage, higher tumor microvessel density and a lower 3-year disease free survival rate as compared to those with negative CXCR4 expression (P < 0.05). Conclusion: Positive CXCR4 expression and high tumor microvessel density are associated with poor prognosis and could be a potential predictive factor for recurrence or metastasis of colorectal cancer patients. So CXCR4 may be a potential target for specific therapeutic interventions in the future. 展开更多
关键词 CXCR4 colorectal carcinoma microvessel density lymph node metastasis PROGNOSIS
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A Boundary Value Problem for Second Order Functional Differential Equations with Impulses
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作者 何智敏 葛渭高 《Journal of Beijing Institute of Technology》 EI CAS 1998年第4期323-329,共7页
Aim To investigate the boundary value problem for second order functional differentiai equations with impulses. Methods The fixed point principle was used to establish our results. Results and Conclusion The results o... Aim To investigate the boundary value problem for second order functional differentiai equations with impulses. Methods The fixed point principle was used to establish our results. Results and Conclusion The results of the esistence, the uniqueness and the continuous dependence on aprameter of soiutions of the boundary value problems for second order functional differential equations with impulses are obtained. 展开更多
关键词 functional differential equation boundary value Problem impulse fixed point principle
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Liver microcirculation after hepatic artery embolization with degradable starch microspheres in vivo
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作者 Jian Wang Satoru Murata Tatsuo Kumazaki 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第26期4214-4218,共5页
AIM: To observe the dynamic changes of liver microcirculation in vivo after arterial embolization with degradable starch microspheres (DSM). METHODS: DSM were injected into the proper hepatic artery through a sila... AIM: To observe the dynamic changes of liver microcirculation in vivo after arterial embolization with degradable starch microspheres (DSM). METHODS: DSM were injected into the proper hepatic artery through a silastic tube inserted retrogradely in gastroduodenal artery (GDA) of SD rats. Fluorescent microscopy was used to evaluate the dynamic changes of blood flow through the terminal portal venules (TPVs), sinusoids and terminal hepatic venules (THVs). The movements of DSM debris were also recorded. Six hours after injection of DSM, percentages of THVs with completely stagnant blood flow were recorded. RESULTS: Two phases of blood flow change were recorded. In phase one: after intra-arterial injection of DSM, slow or stagnant blood flow was immediately recorded in TPVs, sinusoids and THVs. This change was reversible, and blood flow resumed completely. In phase two: after phase one, blood flow in TPVs changed again and three patterns of blood flow were recorded. Six hours after DSM injection, 36.9% ± 9.2% of THVs were found with completely stagnant blood flow. CONCLUSION: DSM can stop the microcirculatory blood flow in some areas of liver parenchyma. Liver parenchyma supplied by arteries with larger A-P shunt is considered at a higher risk of total microcirculatory blood stagnation after injection of DSM through hepatic artery. 展开更多
关键词 Degradable starch microsphere Hepatic microcirculation Hepatic arteries FLUORESCENCE Transartedal chemoembolization
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Lattice Boltzmann Simulation of One Particle Migrating in a Pulsating Flow in Microvessel
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作者 邱冰 谭惠丽 李华兵 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第10期756-760,共5页
A lattice Boltzmann model of two dimensions is used to simulate the movement of a single rigid particle suspended in a pulsating flow in micro vessel The particle is as big as a red blood cell, and the micro vessel is... A lattice Boltzmann model of two dimensions is used to simulate the movement of a single rigid particle suspended in a pulsating flow in micro vessel The particle is as big as a red blood cell, and the micro vessel is four times as wide as the diameter of the particle. It is found that Segrd-Silberberg effect will not respond to the pulsation of the flow when the Reynolds number is relatively high. However, when the Reynolds number is low enough, Segrd-Silberberg effect disappears. In the steady flow, different initial position leads to different equilibrium positions. In a pulsating flow, different frequencies of pulsation also cause different equilibrium positions. Particularly, when the frequency of pulsation is closed to the human heart rate, Segrd-Silberberg effect presents again. The evolutions of velocity, rotation, and trajectory of the particle are investigated to find the dynamics of such abnormal phenomenon. 展开更多
关键词 Segre Silberberg effect lattice Boltzmann method red blood cell pulsating flow
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A case of capecitabine-induced coronary microspasm in a patient with rectal cancer
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作者 Leire Arbea Isabel Coma-Canella +2 位作者 Rafael Martinez-Monge Jesús García-Foncillas Radiation Oncology Division 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第14期2135-2137,共3页
5-Fluorouracil (5-FU) is the most frequently used chemotherapy agent concomitant with radiotherapy in the management of patients with rectal cancer. Capecitabine is an oral fluoropyrimidine that mimics the pharmacon... 5-Fluorouracil (5-FU) is the most frequently used chemotherapy agent concomitant with radiotherapy in the management of patients with rectal cancer. Capecitabine is an oral fluoropyrimidine that mimics the pharmaconkinetics of infusional 5-FU. This new drug is replacing 5-FU as a part of the combined-modality treatment of a number of gastrointestinal cancers. While cardiac events associated with the use of 5-FU are a well known side effect, capecitabine-induced cardiotoxicity has been only rarely reported. Here, we reviewed the case of a patient with rectal cancer who had a capecitabine-induced coronary vasospasm. The most prominent mutation of the dihydropyrimidine dehydrogenase gene was also analyzed. 展开更多
关键词 Rectal cancer CAPECITABINE CARDIOTOXICITY
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