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双语推荐：MIT

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目的：观察心复康口服液对心肌梗死心衰大鼠心肌组织线粒体肌酸激酶(mit CK)mRNA 及蛋白表达的影响。方法采用结扎 SD 大鼠左冠状动脉前降支复制心肌梗死后心衰大鼠模型，用心复康口服液于术后24 h 灌胃给药至6周；以卡托普利作为阳性对照药，观察大鼠梗死周围心肌组织 mit CK mRNA 及 mit CK 蛋白表达水平。结果第6周末，与模型组比较，卡托普利组、心复康口服液组心肌 mit CKmRNA、mit CK 蛋白表达均上调(P 0.05)。结论心复康口服液可上调心肌梗死后心衰大鼠心肌细胞 mit CKmRNA 的表达，促进 mit CK 蛋白含量增加，达到改善心肌细胞能量穿梭紊乱，重塑心肌梗死后心衰大鼠心肌能量代谢作用。
Objective To study the effect of Xinfukang oral liquid(XOL)on the expression of mitochondrialcreatine kinase(mit CK) mRNA and protein in rats with heart failure after myocardial infarction.Methods The rat models of heart failure after myocardial infarction were created by ligating their left anterior descending coronary arteries.after 24 hours of creating models,rats in drug groups were fed on XOL and captopril through gastotube for 6 weeks,while captopril group was served as control.The expression of mit CK mRNA and protein around infarction area were observed.Results Compared with mode group,the expression of mit CK mRNA and protein in captopril group and XOL group were increased at 6th weekend (P 0.05).Conclusion XOL can effectively in-crease the expression level of mit CK mRNA,as well as the protein content of mit CK of rats with heart failure after myocardial in-farction,and thus help to improve heart failure myocardial energy shuttle and remodel the process of myocardia

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MIT媒体实验室是跨学科研究的一个成功典范，有着崇尚学术自由、注重学科整合、坚持开放合作、信奉自由管理的独特文化风格，有效地促进了跨学科研究的创新。MIT媒体实验室跨学科研究的文化风格是媒体实验室取得成功的重要原因之一。
MIT media lab is a success profile of interdisciplinary research. It has a unique cultural style of advocating academic freedom, adhering to opening up and cooperation, and emphasizing free management, which effectively promote the innovation in interdisciplinary research. The cultural style of interdisciplinary re-search in MIT media lab is one of the most important reasons for the success of the media lab.

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本文以MIT-BIH心电数据库作为研究对象,简要介绍了使用小波变换进行心电信号检测的原理和小波提升算法的机制,阐述了采用提升小波变换的方法分解ECG信号并对R波进行定位的流程。给出了matlab示例代码。
We used the MIT-BIH database in our research, introduced the theary of ECG detection using wavelet transform and the mechanism of the Lifting Scheme, we explained how to decompose ECG signal by Lifting Scheme, and how to locate the position of R-Wave. We also give the example code of matlab.

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目前暂无相关测试方法或测试标准运用于成品刚挠结合板挠性区耐折性测试，传统的MIT测试法只能针对特定图形挠性板进行耐折性测试，成品刚挠结合板的耐折性无法保证，不能完全满足不同客户在不同环境下（静态挠曲、动态挠曲）的使用要求。本文根据MIT测试原理，研究挠性板材料类型、刚挠结合板台阶高度、挠性区间距、挠性板层数结构等因素与刚挠结合板耐折性的关系，结果表明无胶挠性板材料耐折性明显优于有胶挠性板材料，刚挠结合板挠性区搭配一定的台阶高度、间距、层数结构，可以满足客户对于刚挠结合边缘最小间距的设计要求，并保证刚挠结合板的耐折性能。
At present, conventional MIT test is a folding endurance test only for the lfexible board with a speciifc pattern and structure and not for rigid-lfex board, which can not fully meet the user requirements in different environment (static deflection, the dynamic deflection). And there are not the related test methods or standards about folding endurance test used in the ifnished rigid-lfex board. This paper discussed the folding property of rigid-lfex board base on the type of lfexible materials, step height of rigid-lfex board, lfexible zone space and lfexible plate layer structure etc. according to the principle of MIT method. The results show that the folding property of the non-gel lfexible board is better than that of the lfexible board with adhesive. And the lfexible area with a certain step height, spacing and layers can meet the customer’s design requirements for the min space of the edge of rigid-lfex area, and can ensure its folding endurance of rigid-lfex board.

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为抑制心电信号中存在的噪声干扰，以利于准确提取反映心电信号的特征信息，文章提出应用一维离散小波变换实现对心电信号的降噪处理方法。通过对MIT/BIH心电数据库中的心电信号进行仿真，研究结果表明，该方法能够有效地去除心电信号中的噪声，对实现心电信号特征信息的提取具有一定的实用价值。
In order to inhibit noise interference for extracting the characteristics of ECG signals,a noise reduction method based on one-dimensional discrete wavelet transform was discussed in this paper. The results obtained by simulation of the MIT/BIH ECG database demonstrate this method can effectively reduce the noise of ECG signals,which provide a certain practical value for extracting features information of ECG signals.

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Scratch是一款由麻省理工学院(MIT)设计开发的一款面向少年儿童的简易编程工具。Scratch软件交互性强,素材表现力较好,它不需要像传统编程软件那样逐行地"敲"代码,而是通过拖曳已定义好的程序模块,采用搭积木的方式快速实现程序的编写,简单易学,使用Scratch制作动画在教学应用中具有较强的优势。
Scratch is a simple programming tool which was designed by the Massachusetts Institute of Technology (MIT) for the children. Scratch has high interactivity and good performance of material. Unlike the traditional line by line programming soft-ware which knocks the code, it can implement the rapid writing of the program by towing defined program module and by using the building blocks of writing. So it is very easy to learn. It has many advantages to use Scratch making animation in teaching.

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目的：以卷尾突变C57 BL／6 J小鼠为研究对象，通过微卫星定位以及候选基因测序分析确定突变基因位点。方法将LP小鼠与正常C57BL／6J及C3H小鼠交配，记录了后代中卷尾与正常小鼠的数目，确定卷尾突变表型的遗传模式。微卫星D1Mit113和D1Mit149对突变基因进行了精确定位，确定候选基因。 PCR扩增候选基因片段直接测序并进行序列分析。用FspBI（ BfaI）内切酶鉴定LP小鼠杂交后代的基因型。结果 LP突变呈单基因不完全显性遗传，在不同的遗传背景中存在表型差异；Vangl2基因编码区1345bp处碱基由C→T。结论 Vangl2基因C→T的突变是一种无义突变，导致蛋白编码提前终止，是引起卷尾突变的原因；杂交LP小鼠后代中未出现纯合子小鼠，证明Vangl2基因突变纯合子致死。
Objective To define the loci of the mutant gene in the loop-tail mouse.Methods To study the heredity pattern, loop-tail mice were mated with normal C57BL/6J and C3H mice.Their offsprings with loop-tail or normal phenotype were registered respectively.Microsatellite marker D1Mit113 and D1Mit149 were used to locate the mutant gene.Based on fine mapping, the candidate gene Vangl2 was found.Vangl2 gene from the loop-tail mice was amplified by PCR followed by sequencing.Incision enzyme FspBI ( BfaI ) identified the genotype of offspring from loop-tail mice intercrossing.Results Heredity test indicated that the loop-tail phenotype was controlled by a single dominant gene not with 100%penetrance but was affected by genetic background.A C-to-T transversion was at the 1345bp in Vangl2 gene of the loop-tail mice.Conclusions The C-to-T transversion introduces a pre-termination codon of amino acids and causes the phenotype of loop-tail phenotype.None homozygous mice were found in the off

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本文研究了基于特征脸的人脸检测算法，针对其分类能力差的特点，基于主元分析提取特征向量空间构造弱分类器，结合AdaBoost算法构造强分类器，提出了一种人脸检测算法。利用MIT＋CMU人脸数据库测试该算法的性能，结果表明本算法在运行时间与检测正确率方面明显优于基于神经网路的算法和支持向量机算法。
This paper studies the feature based face detection algorithm, According to the characteristics of weak classifi-cation ability, based on the principal component analysis feature vector space is extracted to construct weak classifier, combined with AdaBoost algorithm to construct the strong classifier, an algorithm for face detection is presented. The performance of the algorithm is tested based on MIT+CMU face database, the results show that the algorithm in the run-ning time and detection accuracy is significantly better than the algorithm based on neural network and support vector machine algorithm.

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针对常规场景识别方法在室内环境中性能显著下降的问题，提出一种融合全局及显著性区域特征的移动机器人室内场景识别方法．利用改进的BoW（bag-of-words）模型进行室内场景判别的同时，结合视觉注意方法提取出场景图像的最大及次大显著区域，送入改进的BDBN（bilinear deep belief network）模型来自动学习图像特征，进行类别判断．利用分段判别策略对于两个模型的结果进行融合，并输出最终场景判别结果．将本方法应用于实际机器人平台及包含67个类别的MIT室内场景数据库，实验结果表明，相较于常规BoW模型，本方法可以有效提高识别准确率10%以上．此外，本方法在MIT数据库中达到平均44.3%的准确率，优于相关文献算法．
Conventional scene recognition methods have poor performance in indoor situations. For this reason, an indoor scene recognition method for mobile robots is presented, combining global and saliency region features. In addition to the use of an improved BoW (Bag-of-Words) model for indoor scene recognition, an improved BDBN (bilinear deep belief network) model is implemented, using information from a salient region detection technique. The first and the second winners of the salient region detection with the visual attention approach are sent into the improved BDBN model to automatically learn image features and to judge the class sets they belong to. The final result of the indoor scene recognition can be obtained by combining the above-mentioned two models through strategies for a piecewise discriminant. The method is applied to the real mobile robot platform and the standard MIT 67-category indoor scene dataset. The experiments show that the proposed method is highly effecti

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基于拉曼型自由电子激光器,研究了离子通道自由电子激光器中相对论电子运动的稳定性,分析了电子运动的科尔莫哥洛夫熵,以MIT实验数据为例,分别研究了离子密度、绝热压缩场、自身场对电子的运动和电子运动的稳定性的影响。结果表明:绝热压缩场对电子运动有较大影响,但几乎不会影响电子运动的稳定性;离子密度、自身场对电子运动的稳定性有实质性影响。
Motion stability of the relativistic electron is studied in an ion-channel free-electron laser based on the Raman free-elec-tron laser.Kolmogonov entropy of electron motion is analyzed .By making use of the reported MIT experiment data , the influences of the ion-density, adiabatic magnetic field and self-field on the electron motion and motion stability are investigated .It is shown that the adiabatic magnetic field has an obvious influence on the electron motion .However, it influences hardly the stability of electron motion . The ion-density and the self-field have an essential influence on the stability .

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