关于组合多针图复原物体3D表面形状的研究

光度立体系统很易确定物体表面任意点方向及相对深度，但不能确定绝对深度。为确定绝对深度，本文提出的算法首先利用双目光度立体系统的每个摄象机分别获得一幅针图，并求出左、右两针图内对应区域间的视差，然后，经适当组合及精确的匹配，重建３－Ｄ物体表面深度，这一方法对进一步开发３－Ｄ表面深度重建及复原景物结构探索性研究有着十分重要的意义。

关于融合多针图确定物体三维表面绝对深度的研究

利用ＰＳ（Ｐｈｏｔｏｍｅｔｒｉｃ Ｓｔｅｒｅｏ）系统很易确定物体表面方向及相对深度，但不能确定绝对深度．为确定绝对深度，本文提出的算法首先利用ＢＰＳ（Ｂｉｎｏｃｕｌａｒ Ｐｈｏｔｏｍｅｔｒｉｃ Ｓｔｅｒｅｏ）系统获得一对表面方向图．然后，基于ｇｅｏｄｅｓｉｃ ｄｏｍｅ分割这对方向图并计算图中对应区域间的视差．最后，通过施加多种约束，经适当融合及精确的视差匹配，确定景物物体３Ｄ表面绝对深度．这一方法对进一步研究怎样确定任意３Ｄ表面深度并复原景物结构有着十分重要的意义．

关于融合多针图确定表面绝对深度的误差分析与研究

本文利用ＢＰＳ系统首先产生景物的一对表面方向图，然后：１．分割表面方向图为与景物内物体对应的孤立区域；２．匹配两针国内对应区域间的视差；３．确定物体的３Ｄ表面绝对深度。最后，着重指出怎样识别以下几种主要误差：（１）表面方向测量误差；（２）重建深度误差；（３）极线与扫描线非平行误差等，并且讨论对这些误差进行定量分析与校正的方法。

关于融合多针图确定物体3D表面绝对深度算法

该文提出的算法首先利用ＤＰＳ系统获得一对表面方向图，然后，基于ｇｅｏｄｅｓｉｃｄｏｍｅ分割这对方向图并计算图中对应区域间的视差，最后，经适当融合及精确的视差匹配，确定景物物体３Ｄ表面绝对深度。这一方法对进一步研究如何确定任意３Ｄ表面深度及恢复景物结构有着十分重要的意义。

我国古代明堂图的优良传统

《隋志》载明堂图十余种,推断多为《甲乙经》后作品。唐甄权、孙思邈明堂图为三人图,王焘所绘为十二人图。宋元明清均官颁图经、铸铜人、绘明堂图以求经穴的统一规范厘正增新。清雍正间曾铸大小铜人两种,修武英殿明堂图作者在英维肯医史馆见到小铜人一具、嘉庆钱松重镌明堂图四幅,我国已佚。我国古明堂图的优良传统主要是:经图并重,经穴并重,不断厘正、增新、勘误,重视经穴与解割关系,以简明的三人图为主流,全图、总图、要图、分图、小图相结合,纵横系统局部地反映经络穴位,所有这些都应予继承发扬。

基于表面局部最高点估计的明暗恢复形状算法

基于数据逼近强约束的针图恢复算法是近年来提出的一种较为成功的从明暗恢复形状(shape from shading)的算法,但由于该算法在非垂直光线下得到的初始化针图的误差较大,并且不能保证法向量有解或有唯一解,为了解决SFS算法存在的问题,提出了一种改进的SFS算法。该改进算法从分析非垂直光线下图像梯度图与针图之间的关系入手,首先检测图像局部最亮点位置;然后根据照度方程估计表面局部最高点的位置,同时对梯度方向进行调整,并建立方程组;最后针对方程组解的不同情况,提出了相应的处理方法。改进后的算法,对于垂直光线和非垂直光线下的情况同样有效,从而扩大了基于数据逼近强约束的SFS算法的适用范围。从合成图像和实际图像的实验结果可以看出,采用改进的算法可以得到比基于数据逼近强约束的算法更接近真实表面的初始化针图和初始化高度。

Single Camera 3-D Coordinate Measuring System Based on Optical Probe Imaging

A new vision coordinate measuring system--single camera 3 D coordinate measuring system based on optical probe imaging is presented. A new idea in vision coordinate measurement is proposed. A linear model is deduced which can distinguish six freedom degrees of optical probe to realize coordinate measurement of the object surface. The effects of some factors on the resolution of the system are analyzed. The simulating experiments have shown that the system model is available.

西夏文《明堂灸经》版本新考——英藏、俄藏本的启示

对英藏《明堂灸经》残片进行释读,并与俄藏《明堂灸经》对译比较,加之与传世文献《太平圣惠方》卷一百《明堂灸经》及元窦桂芳《新刊〈黄帝明堂灸经〉》比对,可以判断英藏、俄藏本《明堂灸经》属同一版本的不同抄本,与《太平圣惠方》、元窦桂芳本一脉相承,而其真正价值则可能是佚失的王惟一《新铸铜人针灸图经》的西夏译本。

Advanced tufted carpet patterning technology

After a review of the tufting industry’s development, and a brief introduction to available systems for producing patterned tufted carpets, the principle of ICN (Individually Controlled Needle) and the related advanced tufting technology Col-ortec are presented. Finally, Colortec machine, Axminster weaving machine, and Wilton loom are compared. It is believed that the Cobble Colortec machine is a significant jump forward in the tufted carpets industry as it now allows access to all major carpet markets in a competitive fashion.

Phase equilibria in Ni-Ti-Ta ternary system

Phase diagrams of two isothermal sections of the Ni-Ti-Ta ternary system at 1000 and 1200℃in a full composition range were determined by X-ray diffraction and electron probe microanalysis.The experimental results indicated a ternary compoundτphase with low solid solubility and composition ranges of(16.3-22.4)at.%Ta,(15.9-24.1)at.%Ti and(58.5-60.0)at.%Ni at 1000℃.The two terminal solid solutions(bcc-(Ta)andβ-Ti)formed a continuous solid solution at 1000 and 1200℃.A certain amount of Ti can dissolve into Ni-Ta intermetallic compounds near the Ni-Ta side,with the highest value of 21.9 at.%observed in the Ni;Ta compound at 1000℃.

Radiation Characteristics of Rectangular Patch Antennas with an Array of Pins

The patch antennas with an array of pins （pin array patch antennas） with excellent radiation characteristics are investigated for various substrate thicknesses. The radiation in the horizontal plane of a pin array patch antenna is very small compared to that of a conventional patch antenna. And the increase of forward radiation and the decrease of backward radiation of a pin array patch antenna are obtained than those conventional one＇s. Also the half-power beamwidth of E -plane radiation pattern of a pin array patch antenna is narrower compared to that of the conventional so that the directivity is improved.

秦绣传统针法与创新针法设计比较研究

本文以梳理、比较、研究秦绣针法为重点,总结陕西秦绣针法的基本规律,通过实地调研与理论研究,绘制出秦绣针法的线迹图、骨骼图,将秦绣实物绣片与每一种相对应的针法结构图以表格的形式做直观比较。不仅将秦绣原有的基础针法进行分类图解,还将秦绣的创新针法进行分类图解,组合成一种学习秦绣针法的基础工具图谱,为学习秦绣传统针法提供授课基础模本。

Effects of acupuncture stimulation of the sacral region on EEG and urinary bladder activity in rats

Objective To observe the effect of acupuncture stimulation of the sacral segment on the excitability of the cerebral cortex and the activity of the urinary bladder and the involvement of the cholinergic neurons in the laterodorsal tegmental （LDT） nucleus of the brainstem in acupuncture-induced electroencephalogram （EEG） changes. Methods A total of 109 SD rats were used in the present study. Under anesthesia （urethane）, a pair of stainless steel electrodes was separately implanted into the frontal and parietal bony sutures to record EEG. Glass microelectrodes were used to record extracellular discharges of single neuron of the LDT nucleus in the brainstem. Urinary bladder pressure was recorded through a catheter inserted in the bladder and the contraction was induced by infusion of normal saline. A filiform acupuncture needle was inserted into the sacral segment Ecorresponding to Zhongliao （中髎BL 33）] and rotated manually for 1 min. Results In 27 rats whose bladder was full of normal saline, acupuncture stimulation of the sacral region suppressed the contraction activity of the bladder, the fast EEG with lower amplitude and higher frequency tuned into slow EEG with higher amplitude and lower frequency in 6 cases （22.2%）. The inhibitory effect occurred from 45 s to 12 min after acupuncture manipulation. In 82 rats whose bladder was empty, acupuncture stimulation caused the fast EEG to turn into slow EEG in 71 cases （86.6%）. Simultaneously, LDT cholinergic neurons reduced their firing rates from （2.9±1.5） Hz to （1.2±0.6） Hz （n = 12, P〈0.05）, and the reduction of LDT neuronal discharge was earlier in time than the change of EEG. Conclusion Acupuncture stimulation of the sacral region can lower the excitability of the cerebral cortex and suppress bladder activity, which is closely associated with its resultant inhibitory effect on the electrical activity of LDT cholinergic neurons.

Effect of electroacupuncture on muscle state and infrared thermogram changes in patients with acute lumbar muscle sprain

OBJECTIVE:To observe the effect of electroacupuncture(EA) on force-displacement value(FDV)of muscle state and the temperature index of infrared thermogram in patients with acute lumbar muscle sprain.METHODS:Patients with acute lumbar muscle sprain were randomly divided into a medication group and an EA group.The medication group(n-60) were treated with diclofenac sodium dual release enteric-coated capsules,75 mg per day for 7days.The EA group(n = 60) received EA at bilateral Houxi(SI 3),Jiaji(EX-B2),and Ashi points,at 20-30 mm depth and 10-25 Hz frequency for 20 min daily for 7 days.Muscle states were determined by measuring FDVs of the bilateral lumbar muscle with a Myotonometer fast muscle state detector.The temperature index of the lumbar skin was measured before and after treatment with a Fluke Ti30 non-refrigerated focal plane infrared thermal imaging detector.RESULTS:There were no significant pre-treatment differences between the medication group and the EA group in mean FDV(P = 0.052) or temperature index of the lumbar skin(P = 0.25).The cure rate was 63.3%in the EA group and 53.3%in the medication group.The total efficacy in the EA group(93.3%) was not significantly different from that in the medication group(86.6%,P = 0.204).After treatment,the mean FDV of the lumbar muscle significantly increased in both groups(P < 0.05 for both groups);the FDV increase in the EA group was significantly higher than in the medication group(P = 0.015).The temperature index was also significantly increased in both groups(P < 0.05 for both groups);the infrared thermogram in the EA group indicated significantly greater recovery compared to the medication group(P = 0.026).CONCLUSION:Both EA and diclofenac sodium markedly improved acute lumbar sprain,but EA better improved the rehabilitation and regeneration of FDVs and temperature index of infrared thermogram of the muscle.

Thermic effects of acupuncture on Taixi (太溪 KI 3) evaluated by means of infrared telethermography

Objecive To observe the eventual thermic effects of stimulaing Tàixī (太溪 KI 3) by telethermography. Methods Nine individuals of both sexes, chosen randomly, paricipated in this study. The temperature of the room where the experiment was carried out was not above 21 ℃. At the start of the experiment the volunteer stayed for exactly ten minutes in the room for acclimaizaion, then the first thermographic image was recorded for standardizaion purposes. Following this, an acupuncture needle was inserted at KI 3 only in the right leg, whose depth was limited to obtain Deqi, only manual stimulation for 15 min permanence in the site. Ater this period, new images were recorded. Results Significant reduction of all the right leg temperatures, by about 1.1 ℃ in all the volunteers that received the acupuncture at the Kl 3 was noted, with a coefficient variaion of P<0.0001 that was staisically highly significant, while on the other not simulated leg the variaion that occurred was around 0.7 ℃, with no significant coefficient variation of P>0.05. Conclusion The results of this study demonstrate that manual simulaion of the Kl 3 influences significantly peripheral vascular circulation, by means of sympathetic stimulaion causing vasoconstricion.

Clinical research on acupuncture combined with TDP for stump stomach atony after subtotal gastrectomy

Objective To verify the therapeutic methods and clinical efficacy on stump stomach atony after subtotal gastrectomy （SSASG） treated with acupuncture and TDP. Methods Fifty-three cases were divided into an observation group （23 cases） and a control group （30 cases） according to the random number table. In the observation group, acupuncture was applied in combination with TDP. The main acupoints were Zúsānlǐ （足三里 ST 36）, Píshū （脾俞 BL 20）, Wèishū （胃俞 BL 21） and Zhōngwǎn （中脘 CV 12）. The treatment was given once per day. 10 treatments made one session. Two sessions of treatment were required. In the control group, Motilium was prescribed for oral administration, 10 mg each time, three times per day, continuously for 20 days. The changes in the relevant parameters in electrogastrogram （EGG） were observed before and after treatment. The efficacy was assessed. Results The principle frequency and the waveform reaction area of EGG were improved apparently after treatment in both groups （all P0.01）, and those in the observation group were superior to those in the control group （all P0.01）. The ratio of the power after/before meal was more than 1 in the observation group after treatment and that in the control group was less than 1. The effective rate was 100.0% （23/23） in the observation group, which was superior to that of 80.0% （24/30） in the control group, presenting statistically significant difference （P0.01）. Conclusion Acupuncture in combination with TDP can effectively treat SSASG. This therapy apparently improves the gastric motility, tremendously promotes the gastrointestinal peristalsis and recovers the gastrointestinal function after operation. The efficacy of it is superior to that achieved by the oral administration of Motilium.

High-performance single-chip exon capture allows accurate whole exome sequencing using the Illumina Genome Analyzer

Here we present an adaptation of NimbleGen 2.1M-probe array sequence capture for whole exome sequencing using the Illumina Genome Analyzer (GA) platform.The protocol involves two-stage library construction.The specificity of exome enrichment was approximately 80% with 95.6% even coverage of the 34 Mb target region at an average sequencing depth of 33-fold.Comparison of our results with whole genome shot-gun resequencing results showed that the exome SNP calls gave only 0.97% false positive and 6.27% false negative variants.Our protocol is also well suited for use with whole genome amplified DNA.The results presented here indicate that there is a promising future for large-scale population genomics and medical studies using a whole exome sequencing approach.