暗区

并且可以通过控制横向失调量E来调节中心暗区的大小。

We can adjust size of dark region through adjusting the misaligned transverse vector E.

GAP／AN推进剂的燃烧波可以分为凝聚相反应区、暗区、气相反应区。

The combustion wave is divided into three zones including condensed reaction zone , dark zone and gas reaction zone .

使用光面透镜，使LED光色更佳，光斑均匀集中，无杂色，无阴影暗区。

With smooth lens , the LED light color better , even centralized spot , no noise , no dark shadows .

结论：VEGF参与了急性脑梗死的血管重建，有利于脑梗死缺血半暗区血供的早期恢复，VEGF的升高与梗死面积的大小呈正相关。

Conclusions : VEGF involved in the angiogenesis of ACI , it benefited the early recovery of blood supply in cerebral infarction and ischemic penumbra .

IP减少2hMCAO后缺血中心区和半暗区TUNEL阳性细胞数（P＜0.05）。

IP also decreased the number of TUNEL positive cells in both ischemic core and penumbra after 2h MCAO ( P < 0.05 ) .

PAF拮抗剂对光化学反应后脑缺血中心区及半暗区单胺类递质的影响

Effect of PAF antagonist on monoamine neurotransmitters in ischemic core and penumbra following photochemically induced cerebral thrombosis

~（99m）Tc-HMPAO放射自显影诊断脑梗塞半暗区的实验研究

The Experimental Study of Diagnosing Penumbra with ~ ( 99m ) Tc-HMPAO Autoradiography after Cerebral Infarction

依据推进剂燃烧波结构中的凝相机理、暗区理论和火焰性质，全面考察了AP的影响机制；

In parallel with this experimental analysis , an interpretative mechanism for AP 's effects is developed on the basis of condensed phase mechanism , dark zone theory and flame property in the combustion wave .

结果16例患者中15例其脑缺血侧rCBF减低，MTT、TP延长，rCBV正常或轻度降低，存在半暗区；

Results The rCBF results were decreased , MTT and TP values were prolonged , rCBV were normal or mildly reduced and penumbra were existed in the 15 eases .

与缺血溶剂组相比，缺血CCK-8组脑缺血中心区及半暗区NO水平显著降低（P<0.05或0.01）；

The NO levels of ischemic core or penumbra in CCK-8 treated group decreased significantly compared with vehicle treated group ( P < 0.05 or 0.01 );

目的观察针灸即时和治疗后对脑挫裂伤局部血流变化影响结果，以确定缺血半暗区（IP）的存在和针灸疗效。

Objective To observe the therapeutic effect of acupuncture on regional cerebral blood flow ( rCBF ) of patients with cerebral contusion and laceration immediately and after 14 days , in order to confirm the existence of the ischemic penumbra and effect of acupuncture treatment .

用NADPHd组织化学法，检测局灶性脑缺血再灌注后缺血半暗区（额叶皮层）和中心区（顶叶皮层和尾壳核）NOS活性变化。

The changes of nitric oxide synthase activity in ischemic core area ( Parietal cortex and Caudoputamen ) and penumbral area ( Frontal cortex ) was examined after focal cerebral ischemia and reperfusion using NADPH d histochemistry technique .

试验结果表明：MSR算法既可实现低对比的数字X光图像增强，又能实现图像的动态范围压缩，可显著提高暗区数字X光图像的信息。

With this method , image contrast enhancement , sharpening and dynamic range compression were achieved at the same time . The information of hidden area of digital radiograph was obviously enhanced .

目的研究树鼩血栓性脑缺血时，血小板活化因子（PAF）受体活化介导的缺血半暗区微环境改变，并探讨PAF受体拮抗剂&银杏内酯B（ginkgolide，GB）的神经保护机制。

Objective To study the platelet activating factor ( PAF ) receptor mediating the microenvironment alteration in ischemic penumbra and to explore the neuroprotective mechanisms of PAF receptor antagonist ( ginkgolide B , GB ) after cerebral thrombosis in tree shrews .

给药后25h分别取正常大鼠的大脑皮层及脑缺血大鼠缺血中心区、半暗区、非缺血半球皮层，检测脑组织NO水平及一氧化氮合酶（NOS）活性。

Brain cortexes of normal rats or ischemic core , penumbra , or nonischemic hemispheres cortexes of brain ischemia rats were dissected 25h after drug delivery for determination of NO levels or NOS activities .

首次用原子力显微镜给出了用两种腐蚀剂腐蚀过的KTA晶体表面的铁电畴和位错蚀坑的照片及定量信息，如发现铁电畴的明区要高于暗区，且两者的粗糙度明显不同。

The pictures and quantitative information on ferroelectric domain and etch pits of dislocations in etched KTA crystal surface have been given first time by atomic force microscope .

目的：探讨应用99mTc-HMPAO脑血流放射自显影研究脑梗塞后缺血半暗区的价值。

Objective : Our aim was to study the penumbra with cerebral blood flow autoradiography by 99m Tc HMPAO after cerebral infarction .

输卵管妊娠流产型与破裂型液性总暗区在01～100cm时，两组的总出血量差异有显著意义。

A statistically significant difference of internal hemorrhage volume was found between tubal abortion and tubal pregnant rupture with a free fluid area in the range of 0.1 ~ 10.0 cm .

本文通过仿真得出：光斑大小会对探测器灵敏度和探测的动态范围产生影响；暗区宽度越宽，对QD定位精度的影响越大。

Obtained through simulation : the dynamic range of the detector sensitivity and detection of the spot size will have an impact ; the wider the width of the dark zone , the greater the impact on the QD positioning accuracy .

结果：苏木精-伊红染色示预防组，I-R治疗组，再灌注后治疗组较之I-R组缺血半暗区神经元损伤明显减轻。

RESULTS : HE staining showed penumbra neuron damages were alleviated significantly in prevention group , I R treatment group and post reperfusion treatment group as compared with those of I R group .

结果普通附加B-flow检查显示玻璃体暗区内细小弱回声光点增加，对玻璃体出血的确诊率高于单纯普通超声检查法（93.33%和77.78%；P<0.05）。

The rate of confirmed diagnosis of vitreous hemorrhage with additional B-flow ultrasonography was higher than that of conventional ultrasonography . ( 93.33 % vs 77.78 % , P < 0.05 ) .

结论：光化学诱导树鼩局部脑缺血后，半暗区、远隔区及对侧皮层AS活化，GFAP表达增加，其中远隔区及对侧皮层AS活化可能是皮层扩布性抑制的一种特殊表现；

Conclusions : Astrocytes proliferate and GFAP expression increase in the penumbra , distant of infarct and contralateral cortex after local cerebral ischemia , of which the astrocytes proliferation in the distant of infarct and contralateral cortex could be a extraordinary phenomenon of cortical spreading depression .

22眼初筛异常且两法或其中之一所测深度≥GdB，16眼纬线法所测暗区深度大于经线法。

However , the depth of scotoma tested by the latitudinal method was greater than that by the longitudinal method in 16 eyes of the 22 eyes with both an abnormal screen result and a depth of scotoma greater than 6 dB by one or two of methods .

距前一个蛋产出后175h（12～125h子宫龄）至明区形成期，即鸟类的囊胚期晚期，结果在胚盘中央形成透明的明区和周围不透明的暗区。

Later blastocyst stage , from 17 5 h ( 12 ~ 12 5 h uterine age ) to area pellucida formation after the former egg had been laid .

改进汽车光照暗区的设想

An Assumption on Improving on the Illumination Dark Area of Automobile

暗区分割算法在夜间图像增强中的应用

Application of Dark Area Segmentation in Night Image Enhancing

暗区表面光接枝化学及技术研究

Photo-Chemistry on Surface in Dark-Area and Related Applied Technique

硅谜与碱盲&近代热液成矿学的两大暗区

Silica enigma and ignorance in alkali & two neglected problems in modern HYDROTHERMAL METALLOGENY

结果小鼠均出现成熟缺血核心区和半暗区。

Results Well defined ischemic core and penumbra area appeared in each experimental animal .

2例见腹腔游离液暗区，并有肠管僵硬、蠕动差。

Showed free fluid area and stiff intestine .