共查询到20条相似文献，搜索用时 356 毫秒
1.
ＭＥＡＳＵＲＥＭＥＮＴＯＦＳＯＤＡＣＴＩＶＩＴＹＢＹ~（１９）ＦＮＵＣＬＥＡＲＭＡＧＮＥＴＩＣＲＥＳＯＮＡＮＣＥ（ＮＭＲ）ＲＥＬＡＸＡＴＩＯＮＲＡＴＥＺｈａｏＢａｏ－Ｌｕ；ＣｈｅｎＹｕｎ－ＺｕｎａｎｄＸｉｎＷｅｎ－Ｊｕａｎ（ＩｎｓｔｉｔｕｔｅｏｆＢｉ?.. 相似文献
2.
ＤＥＴＥＲＭＩＮＡＴＩＯＮＯＦＣＹＡＮＩＤＥＢＹＡＳＰＥＣＴＲＯＰＨＯＴＯＭＥＴＲＩＣＲＥＶＥＲＳＥＤＦＬＯＷＩＮＪＥＣＴＩＯＮＭＥＴＨＯＤ￥ＪｉｎｇｆｕＬｉｕａｎｄＨｕｉｃｈａｎｇＭａ（ＲｅｓｅｔｒｃｈＣｅｎｔｅｒｆｏｒＥｃｏ－Ｅｎｖｉｒｏｎｍｅｎ... 相似文献
3.
ＩＳＯＰＲＯＰＹＬＩＤＥＮＡＴＩＯＮＯＦＭＯＮＯＳＡＣＣＨＡＲＩＤＥＳＣＡＴＡＬＹＺＥＤＢＹＳＯＬＩＤＰＨＡＳＥＴｉＣｌ＿４ＩＳＯＰＲＯＰＹＬＩＤＥＮＡＴＩＯＮＯＦＭＯＮＯＳＡＣＣＨＡＲＩＤＥＳＣＡＴＡＬＹＺＥＤＢＹＳＯＬＩＤＰＨＡＳＥＴｉＣｌ＿４￥... 相似文献
4.
ＤＥＴＥＲＭＩＮＡＴＩＯＮＯＦＴＨＥＩＮＴＥＮＳＩＴＹＯＦＴＨＥＥＡＲＴＨＳＭＡＧＮＥＴＩＣＦＩＥＬＤＤＵＲＩＮＧＱＵＡＴＥＲＮＡＲＹＦＲＯＭＶＯＬＣＡＮＩＣＲＯＣＫＳＩＮＥＡＳＴＥＲＮＣＨＩＮＡＬｉＣｈｕｎｊｉｎｇ；ＺｈｕＲｉｘｉａｎｇ（Ｉｎｓｔｉ... 相似文献
5.
ＴＨＥＭＵＬＴＩ─ＡＳＳＯＣＩＡＴＩＯＮＭＯＤＥＬＯＦＴＨＥＥＳＲ─ＡＣＩＤＩＴＹＳＥＮＳＩＴＩＶＥＦＲＥＥＲＡＤＩＣＡＬ：ＡＴＨＥＯＲＥＴＩＣＡＬＳＴＵＤＹ￥ＺｈｕＪｉｎａ；ＹａｎＪｉｎｇ；ＣｈｅｎＹａ－ｌｉｎｇ；ＺｈａｎｇＪｉａｎ－ｚｈｏｎｇ；Ｙ... 相似文献
6.
ＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＦＲＡＣＴＡＬＳＡＰＰＥＡＲＥＤＯＮＡＬＵＭＩＮＩＵＭＦＯＩＬＩＲＲＡＤＩＡＴＥＤＢＹＩＮＴＥＮＳＥＲＥＬＡＴＩＶＩＳＴＩＣＥＬＥＣＴＲＯＮＢＥＡＭ￥ＧａｏＨｕａｉ－ｌｉｎ；ＰａｎＹｕ－ｌｉ（ＣｈｉｎａＩｎｓｔ... 相似文献
7.
ＡＮＯＴＥＯＮＦＩＲＳＴＰＡＳＳＡＧＥＴＩＭＥＳＦＯＲＧＩ／Ｍ／１ＴＹＰＥＭＡＲＫＯＶＰＲＯＣＥＳＳＥＳ￥Ｘｕｅ－Ｍｉｎｇ；Ｙｕａｎ（ＩｎｓｔｉｔｕｔｅｏｆＡｕｔｏｍａｔｉｏｎ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ，Ｂｅｉｊｉｎｇ，１００... 相似文献
8.
《中国科学院研究生院学报》1996,(1)
ＥＸＰＥＲＩＭＥＮＴＳＯＦＳＥＶＥＲＡＬＭＥＴＨＯＤＳＦＯＲＧＥＯ－ＰＯＩＮＴ－ＰＲＯＣＥＳＳＰＲＥＤＩＣＴＩＯＮＥＸＰＥＲＩＭＥＮＴＳＯＦＳＥＶＥＲＡＬＭＥＴＨＯＤＳＦＯＲＧＥＯ－ＰＯＩＮＴ－ＰＲＯＣＥＳＳＰＲＥＤＩＣＴＩＯＮ￥ＷａｎｇＪｉｎ－ｆｅ... 相似文献
9.
Xu Yong-fu 《中国科学院研究生院学报》1996,(1)
ＣＯＭＰＡＲＩＳＯＮＯＦＴＨＥＯＢＳＥＲＶＥＤＣＯ＿２ＤＡＴＡＳＥＴＳＩＮＴＨＥＡＴＬＡＮＴＩＣＯＣＥＡＮＣＯＭＰＡＲＩＳＯＮＯＦＴＨＥＯＢＳＥＲＶＥＤＣＯ＿２ＤＡＴＡＳＥＴＳＩＮＴＨＥＡＴＬＡＮＴＩＣＯＣＥＡＮ￥ＸｕＹｏｎｇ－ｆｕ（Ｉｎｓｔｉｔｕｔ... 相似文献
10.
Wang Hui-jun 《中国科学院研究生院学报》1994,(1)
ＴＨＥＳＥＮＳＩＴＩＶＩＴＩＥＳＯＦＴＨＥＡＧＣＭＴＯＴＨＥＳＯＬＡＲＣＯＮＳＴＡＮＴＣＨＡＮＧＥＡＮＤＧＥＯＧＲＡＰＨＩＣＡＬＬＹＶＡＲＹＩＮＧＳＳＴＡ￥ＷａｎｇＨｕｉ－ｊｕｎ（ＬＡＳＧ，ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＰｈｙｓｉｃｓ，... 相似文献
11.
利用氧阴极与ＤＳＡ阳极组装成一种新型氯酸盐电解槽。在分析阳极表面ＯＣｌ－氧化反应途径的基础上改进了阳极表面的反应模型，对扩散层内氯的水解分率进行了计算，并讨论了活性氯转化反应的活化能、阳极表面流体的流动状态以及氯酸盐浓度与电流效率的关系。 相似文献
12.
An automated, disk-based, enzyme-linked immunosorbent assay (ELISA) system is presented in this work. Magnetic beads were used as the antibody carriers to improve the assay sensitivity and shorten the reaction time. The magnetic module integrated on the system is capable of controlling the magnetic beads to either move in the incubation stage or immobilize at a specific location during washing stage. This controlling mechanism utilizes a passive controlling approach so that it can be performed through disk spinning without the need of active control from external devices. The movement of the magnetic beads was investigated and the optimal rotational speed was found to be related to the ratio of the processing time to the cycle time of the magnetic beads. Comparing to ELISA conducted on microtiter plates, similar test results could be achieved by the disk-based ELISA but the entire protocol can be finished automatically within 45 min with much less reagent consumption. 相似文献
13.
油轮在储、卸油作业及运输过程中,惰气系统的功用一是封舱惰化,降低封闭空间内的含氧量并排出可燃碳氢气体以达到防暴的目的,另外可以用来进行气体置换,用新鲜的空气置换封闭空间内的惰性气体,提高氧气含量,以达到舱内安全作业的要求。基于南海XJ23—1 FPSO项目,详细介绍了惰气发生器系统用于FPSO的组成特点及工作原理,包括风机、供油泵、甲板水封泵、海水冷却泵、惰气发生器、甲板水封罐和压力真空断路器在整个系统中的功用、动作逻辑,同时,分别就惰性体气发生器的空气模式和惰性气体模式两种工作方式在FPSO上的应用进行了详细阐述。 相似文献
14.
Mei-Zhen Zou Wen-Long Liu Han-Shi Chen Xue-Feng Bai Fan Gao Jing-Jie Ye Han Cheng Xian-Zheng Zhang 《国家科学评论(英文版)》2021,8(2)
The hypoxic tumor microenvironment is characterized by disordered vasculature and rapid proliferation of tumors, resulting from tumor invasion, progression and metastasis. The hypoxic conditions restrict efficiency of tumor therapies, such as chemotherapy, radiotherapy, phototherapy and immunotherapy, leading to serious results of tumor recurrence and high mortality. Recently, research has concentrated on developing functional nanomaterials to treat hypoxic tumors. In this review, we categorize such nanomaterials into (i) nanomaterials that elevate oxygen levels in tumors for enhanced oxygen-dependent tumor therapy and (ii) nanomaterials with diminished oxygen dependence for hypoxic tumor therapy. To elevate oxygen levels in tumors, oxygen-carrying nanomaterials, oxygen-generating nanomaterials and oxygen-economizing nanomaterials can be used. To diminish oxygen dependence of nanomaterials for hypoxic tumor therapy, therapeutic gas-generating nanomaterials and radical-generating nanomaterials can be used. The biocompatibility and therapeutic efficacy of these nanomaterials are discussed. 相似文献
15.
Dietary spice components ofCurcuma longa andAbroma augusta have been screened for their protective effect against reactive oxygen species induced lipid peroxidation. They have been
found to be efficient antioxidant when administered in combination. The purpose of the study was to investigate the effect
of oral administration (300mg/Kg) of the aqueous extract of turmeric whose active ingredient isCurcumin andAbromine powder as a hypoglycemic agent mixed with diet. The effect of this aqueous extract on blood glucose, lipid peroxidation (LPO)
and the antioxidant defense system in rat tissues like liver, lung, kidney and brain was studied for 8 weeks in streptozotocin
induced diabetic rats. The administration of an aqueous extract of turmeric and abromine powder resulted in a significant
reduction in blood glucose and an increase in total haemoglobin. The aqueous extract also resulted in decreased free radical
formation in the tissues studied.
The decrease in thiobarbituric acid reactive substances (TBARS) and increase in reduced glutathione (GSH), superoxide dismutase
(SOD) and catalase (CAT) clearly showed the antioxidant property of the mixture. It is suggested that these changes initially
counteract the oxidative stress in diabetes however, a gradual decrease in the antioxidative process may be one of the factors
which results in chronic diabetes. These results indicate that the mixture of the two plants have shown antidiabetic activity
and also reduced oxidative stress in diabetes. A combination ofAbroma augusta and Curcuma longa also restored the other general parameters in diabetic animals. The results were statistically analyzed and indicated that
combination of herbal extracts showed better efficacy as compared to individual herbal plant extracts used. 相似文献
16.
本文使用中国发明专利分析了1993和2001年两次专利制度变动对专利权人行为的影响。我们选取了较短的时间区间,即专利制度变动前后两年的发明专利为研究对象,以保证其他环境变量的稳定性。我们用三个变量描述专利权人行为特征及其对专利制度的信任程度:专利授权、临时寿命和实际寿命,并使用Log-rank检验和处理效应方法对专利制度变动前后专利权人行为特征差异进行了分析。结果显示,专利权人对专利制度的信任程度在两次专利制度变动后有一定增加,主要表现在专利授权率的提高和临时寿命的延长上。但专利的实际寿命并未有明显延长,说明专利制度为专利权人提供的保护仍旧不足,专利权人对专利制度的信任度仍旧不高。 相似文献
17.
Reactive oxygen species (ROS) are cytotoxic at higher concentration resulting in cell death, mutations, chromosomal aberrations
or carcinogenesis. In this study DNA was modified by singlet oxygen and superoxide anion radicals generated by illumination
of riboflavin under 365 nm UV-light. The modified DNA induced high titre antibodies in experimental animals. In enzyme immunoassay,
serum antibodies from cancer patients (n = 34) showed a higher recognition of the modified DNA, as compared to the native form. This was further confirmed by the
gel-shift assay. Immune IgG were used as a probe to detect oxidative lesions in the DNA of cancer patients. DNA isolated from
lymphocytes of cancer patients proved to be an appreciable inhibitor of the experimentally induced antibodies against the
ROS-DNA. This indicates the presence of oxidative lesions in the DNA obtained from cancer patients. The results show that
ROS induced oxidative damage to DNA in cancer patients generate neo-epitopes that are alien for the immune system, resulting in autoantibody formation. 相似文献
18.
手势在人机交互中的应用是非常普遍的。本文给出了一种基于约束模型的主动约束捕捉的数据结构。在此基础上分析研究了用于笔式用户界面几何教学系统中的手势识别技术。进而提出了主动约束捕捉的求解算法,最后阐述了手势在笔式几何系统中的应用。 相似文献
19.
Rachna Agarwal 《Indian journal of clinical biochemistry : IJCB》2013,28(3):227-234
Laboratories have a major impact on patient safety as 80–90 % of all the diagnosis are made on the basis of laboratory tests. Laboratory errors have a reported frequency of 0.012–0.6 % of all test results. Patient safety is a managerial issue which can be enhanced by implementing active system to identify and monitor quality failures. This can be facilitated by reactive method which includes incident reporting followed by root cause analysis. This leads to identification and correction of weaknesses in policies and procedures in the system. Another way is proactive method like Failure Mode and Effect Analysis. In this focus is on entire examination process, anticipating major adverse events and pre-emptively prevent them from occurring. It is used for prospective risk analysis of high-risk processes to reduce the chance of errors in the laboratory and other patient care areas. 相似文献
20.
MODIS数据在当今的森林火灾监测中得到了广泛的应用,其用途大多是用来监测林火和研究林火对大气环境所产生的影响等等。而森林火灾在其燃烧的过程中是有着不同的类别,如暗火、明火、过火、火烧迹地等,不同的林火类别在其亮温上的表现是不同的。但是仅凭借亮温是不能够准确的识别林火燃烧过程的类别,还需要有植被信息来加以判读。本文对林火燃烧的过程分了五类,即明火、暗火、过火、火烧迹地和非燃地区,选取了俄罗斯远东地区的林区,利用MODIS数据的CH21和CH31热红外波段,对林火在燃烧过程中亮温数值的变化进行研究,并与植被指数和多时相数据相结合进行综合分析,最后采用监督分类和决策树分类方法进行解译分类,以便更好的辨别森林火灾在燃烧过程中的不同阶段,使其能够快速、有效的对森林火灾进行监测和控制。 相似文献