The purpose of this study is to explore the noninvasive human-computer interaction methods that have been widely used in various fields, especially in the field of robot control. To have a deep understanding of the development of the methods, this paper employs “Mapping Knowledge Domains” (MKDs) to find research hotspots in the area to show the future potential development. Through the literature review, this paper found that there was a paradigm shift in the research of noninvasive BCI technologies for robotic control, which has occurred from early 2010 since the rapid development of machine learning, deep learning, and sensory technologies. This study further provides a trend analysis that the combination of data-driven methods with optimized algorithms and human-sensory-driven methods will be the key areas for the future noninvasive method development in robotic control. Based on the above findings, the paper provides a potential developing way of noninvasive HCI methods for related areas including health care, robotic system, and media.

In this work a Nd: YAG laser was used for welding 2mm thick tapes of Ti-50.9at.%Ni shape memory alloy (SMA). Both reference and laser welded samples were chosen to investigate mechanical and shape memory behaviour. Their mechanical properties were tested by stress-strain measurements respectively. Comparative microstructures of the reference and the welded materials were studied with SEM and XRD analysis. Moreover, hardness measurements allowed further clarification that the modification was induced by the welding procedure. The results obtained on the weld joint material indicate that the stress-induced martensite and the recovery mechanisms are weakly modified by the presence of the welding zone, while the microstructure of the weld joint is strongly affected.

Pedestrian detection is one of the challenging research topics in computer vision and efficient feature representation of a pedestrian attracts more and more attention. Traditional features such as Histogram of Oriented Gradients (HOG) were widely used in pedestrian detection, but because of their poor texture description ability, these feature based methods cannot achieve satisfactory pedestrian detection results. In this paper, the Local Ternary Patterns (LTP) is introduced into pedestrian detection, and a new feature, named Sqrt-LTP feature, is proposed by finding the square root of LTP feature. Experimental results on INRIA database set show that our Sqrt-LTP feature based pedestrian detection method can achieve more robust performance than both traditional HOG and LTP based approaches, indicating that the proposed Sqrt-LTP feature is a more discriminative feature and can be used for texture classification.

提出一种去趋势项和小波模极大值结合的方法对火箭飞行中测得的信号进行预处理,以消除信号中的低频干扰和噪声.对原始振动信号进行经验模态分解(EMD),得到若干个固有模态函数(IMF)分量,对除最后一项分量的IMF进行重构并再次分解,用重新得到的IMF与再次分解前信号的相关系数作为判断标准,剔除分解中产生的低频干扰分量;用小波模极大值方法对消除低频干扰的振动信号进行降噪处理,再用交替投影算法恢复信号.仿真试验和工程实例分析结果表明:该法能有效消除火箭振动信号中的低频干扰和噪声信号.

目的：观察盐酸米诺环素缓释软膏和碘甘油治疗慢性牙周炎患者的临床效果。方法将90例慢性牙周炎患者按照随机表随机分为实验组45例，对照组45例，实验组使用盐酸米诺环素缓释软膏治疗，对照组使用碘甘油治疗。结果发现治疗后实验组各项指标数除牙周附着丧失外都呈现下降的趋势，GL由初诊时的2.76下降到0.91，实验组的治疗效果明显优于对照组（P＜0.05），差异有统计学意义；PD的平均深度由初诊时的5.86 mm降低到2.71 mm（P＜0.05），差异有统计学意义；AL由初诊时的6.48 mm变化到6.12 mm（P＞0.05），差异没有统计学意义。结论盐酸米诺环素缓释软膏在治疗慢性牙周炎中疗效较好，要进一步研究其对慢性牙周炎的确切疗效，还要进行更多的临床疗效评价。

花岗岩球状风化地段是地铁建设过程中几大难题之一.本文对高密度电法和井间电磁波CT法进行试验研究,总结归纳两种方法在探测花岗岩球状风化体中的有效性.高密度电法选择三种温纳排列装置,测量过程中存在接地条件差等因素,进行常规数据反演,与实际钻探结果误差较大.因此,测量中改进电极与地面耦合条件以及加大供电电压,采用比值法数据反演,根据高电阻率分布特征推断球状风化体的分布情况,其结果与钻探结果较为吻合,效果较好.同时,应用电磁波CT法,也取得了良好的效果.

An extreme point of scale space extraction method for binary multiscale and rotation invariant local feature descriptor is studied in this paper in order to obtain a robust and fast method for local image feature descriptor. Classic local feature description algorithms often select neighborhood information of feature points which are extremes of image scale space, obtained by constructing the image pyramid using certain signal transform method. But build the image pyramid always consumes a large amount of computing and storage resources, is not conducive to the actual applications development. This paper presents a dual multiscale FAST algorithm, it does not need to build the image pyramid, but can extract feature points of scale extreme quickly. Feature points extracted by proposed method have the characteristic of multiscale and rotation Invariant and are fit to construct the local feature descriptor.

在Nd:YAG激光器低功率烧结的条件下,基于选择性激光烧结工艺（SLS）成形复相陶瓷Al2O3/SiO2/ZrO2材料,利用扫描电子显微镜（SEM）、X射线衍射分析仪（XRD）和显微硬度计分别对激光烧结层加入ZrO2前后的表面形貌和断口形貌、表面物相、表面显微硬度进行了分析。结果表明,部分四方相ZrO2（t-ZrO2）相变成单斜相ZrO2（m-ZrO2）,应力诱导微裂纹增韧作用和Al2O3弥散强化共同作用在某种程度上提高了烧结试样的断裂韧性,对于改善零件整体寿命和可靠性有着重要的意义。

目的：探讨窝沟封闭剂预防儿童龋齿的效果。方法选择同一所学校的一、二年级学生526名，并按照电脑随机的方法分成2组，试验组的学生263名由同一人采用同一种材料及方法进行窝沟封闭治疗，对照组263名学生未进行窝沟封闭治疗，仅常规早晚刷牙。1年以后进行随访观察，检验学生的龋齿患病情况及窝沟封闭脱落率。结果试验组学生总共窝沟封闭1052颗牙齿，1年复查后的窝沟封闭剂保留率为96.1%，儿童龋齿患病率4.56%；对照组学生儿童龋齿患病率15.97%；结论对适龄儿童进行窝沟封闭治疗能有效预防儿童龋齿的发生，是目前预防儿童窝沟龋的有效方法。

目的：用随机引物聚合酶链反应（AP-PCR）基因分型的方法对临床上高龋、中龋和无龋儿童菌斑中变形链球菌的基因型进行分析。方法随机选取355例3岁~5岁不同龋敏感儿童，用无菌刮匙刮取龋坏附近的菌斑，无龋者刮取咬面窝沟内及邻面的菌斑。所有变形链球菌临床分离株经微量生化板进行鉴定，以革兰染色法镜检，并用随机引物聚合酶链反应基因分型方法对变形链球菌的基因型进行分析。结果本研究355例中培养出变形链球菌111例，占31.27%。35例高龋儿童中有5例为1种基因型，比率为14.28%；26例有2种基因型，比率为74.28%；4例有3种基因型，比率为11.43%。40例中龋儿童中有3例为1种基因型，比率为7.5%；35例有2种基因型，比率为87.5%；2例有3种基因型，比率为5%。36例无龋儿童中全部为1种基因型。结论菌斑中定植的变形链球菌所携带AP-PCR基因型的种类数与致龋性有密切关系。

In this work experimental trials of welding of NiTi flat plates with 2.0mm thickness were conducted using a 4.5kW continuous wave (CW) Nd:YAG laser. The influences of laser output power, welding speed, defocus amount and side-blow shielding gas flow rate on the morphology, welding depth and width, and quality of the welded seam were investigated. Meanwhile, the effects of heat input on the mechanical and functional properties of welded joints were studied. The results show that laser welding can take better formation in NiTi alloys. The matching curves with laser power and welding speed affecting different formation of welds were experimentally acquired, which can provide references for laser welding and engineering application of NiTi alloy. The heat input has obvious effects on the ultimate tensile strength (UTS) and shape memory behavior of the welded joints.

Nose is one of the salient features in a human face, and its localization is important for face recognition, face pose recognition, 3D face reconstruction, etc. In this paper, a novel nose tip localization method is proposed, which is based on two-stage subclass discriminant analysis (SDA). At the first stage, some randomly selected image patches are used as negative samples for the training of SDA classifier, and nose is detected from the whole face image. The second stage refines nose tip position by using some nose context patches as negative samples for the training of SDA classifier. The proposed method detects nose from the whole face image and no a priori knowledge about the layout of face components is used. Experimental results on AR images show that the proposed method can achieve high nose tip localization rates, and is robust to changes of illumination and facial expression.

The prawn Caspase gene was previously found to play important roles in protecting host from viral infection. In order to further delineate the transcriptional regulation of Caspase in response to viral infection,the Caspase promoter was biotin?labeled and bind to streptavidin?beads.Through pulldown assay the Caspase promoter was founded to interact with two white spot syndromic virus (WSSV)proteins Vp38 and Vp41B.Luciferase reporter assay revealed that Vp38 and Vp41B act as repressor and activator of Caspase transcription respectively.RNAi inhibition of Vp38 and Vp41B indi-cate the two WSSV proteins play roles on the regulation of prawn hymocyte apoptosis.These results provided insights in-to the immune mechanism of invertebrates,and will also be helpful for shrimp viral disease control.

As the rock with the increase of the humidity or saturation,the electrical resistivity is relatively lower.However,the electrical resistivity of faults and collapse column depends on the degree of fragmentation and its rich water of the rock,the fault of the rich water and collapse column resistivity is much smaller than the not water-rich fault,collapse column and the surrounding not water-rich stratum resistivity,this is the geophysical basis which the transient electromagnetic method detect moisture content of the fault,collapse column and the water-rich area.The TEM is the observation of pure secondary field,the higher resolution,especially sensitive to the low resistivity anomalies.Through analytical studies and fine processing,can be effectively detected the coal mine water-rich area.This paper describes the basic principle of the transient electromagnetic method in the detection of coal-rich water area.

"Electrical prospecting" course is one of the most important professional courses in exploration technology and engineering direction of the core curriculum applied geophysics, and resources engineering and geophysics professional focus courses. Take the construction with provincial quality courses electrical prospecting for instance, starting from the aspects of the optimization of teaching methods, teachers strengthen and improve the teaching and learning environment, and to explore the ways and means of the construction of quality courses and have achieved the desired effect.

Al2O3/SiO2/ZrO2 composite material prepared by selective laser sintering(SLS) was investigated with the Nd: YAG laser and its powder feeding device to solve the ceramics brittleness problems.Microstructure and microstructure components of the sintered part were characterized by using scanning electron microscope(SEM),energy dispersive X-ray spectroscopy(EDX) and X-ray diffraction analyzer(XRD).The effects of laser sintering process parameters on the quality of the single-layer and scanning speed on the microstructure were discussed.The results showed that the optimal parameters via the design of experiments are the scanning speed of 15 mm/s,the laser power of 40 W,hatching density of 0.4 mm and the density of 3.72 g/cm3,which can obtain the dense sintered part with dendritic organization.

This paper analysis the relationship between sunshine hours and available sunshine hours,make the observer or auditor have a understanding of sunshine hours and available sunshine hours,in order to correctly handle it in working hours easily.

<正>2013年5月18日,世界知名的第13届威尼斯建筑双年展以香港九龙东城市更新作为主题的香港展览成功展出后,现载誉归来,以[城间、城内-魅笔生城:我到家了]为题举行香港回应展,探讨现今世界上其中一个最大规模的城市更新项目的未来发展,以及如何影响香港作为世界级城市的定位。整个沙龙活动是在香港九龙东办事处旁的集装箱建筑群展开,可以称得上是一场集装箱平台上的"秀场"。开幕式由主礼嘉宾香港特别行政区发展局局长陈茂波先生,MH,JP致辞,其中谈到:"促进多元化发展是启动九龙东的策略之一,我们既要前瞻九龙东的未来,亦要尊重这里现存的生态坏境……九龙东的转型过程是互动的,是透过充分的沟通和了解,由社区共同努力而达致的成果。大家深信,籍着不断的沟通,定可建立一个共同拥有的社区。我们需要跨界别、跨行业、跨政府部门的参与,在过程中建立互信、互利、互

Urban road condition has direct influence on people's daily life, so it is necessary to take measures to ensure clear road and good service effect. Aiming at the disease occurring in urban road of seasonal frozen region, some effective pre-maintenance measures are proposed so that the service life of the road can be extended and the annual average road construction cost can be reduced.

"Electrical prospecting" course is exploration technology and engineering direction of the core curriculum applied geophysics,is one of the university courses,and quality courses in Jiangxi.According to the course of teaching with multimedia teaching,solve the problems which in the electrical prospecting in the course of teaching,and application to the multimedia teaching in the course teaching.So as to improve students' listening efficiency and the teaching aim can be achieved.