赤热石墨棒在乙醇中快速淬火制备多壁碳纳米管

为了满足各种纳米电子学应用的需求，发展新的制备碳纳米管的方法引起人们特别的关注。最近，作者研究了乙醇催化化学气相沉积法来制备多壁碳纳米管。然而，这种方法需要使用金属催化剂，这使得产物中带有杂质。提出了一种采用将赤热石墨棒在乙醇中快速淬火制备多壁碳纳米管的方法，利用这种方法制备的碳纳米管没有催化剂杂质。利用高分辨透射电子显微术对制备的碳纳米管进行了表征。实验结果表明，制备的产物是多壁碳纳米管。由于这种方法制备碳纳米管不需要催化剂，因此它是一种经济的制备碳纳米管的方法。

腋窝淋巴结疑为乳腺癌转移:超声引导下14G芯针穿刺活检采样100例的临床经验

目的 研究超声引导下腋窝淋巴结芯针活检的临床应用，以及可预测淋巴结转移的异常超声征象。方法 该回顾性研究符合HIPAA法案，获审查委员会批准，无需病人知情同意。144例经过腋窝淋巴结超声评估的原发性乳腺癌病人中的100例接受了超声引导下腋窝淋巴结的14G芯针活组织检查。活检针是可控的，而不是传统使用的投掷型（throw-type）针。

RELATIONSHIP BETWEEN OPTIC NERVE HEAD MICROCIRCULATION AND VISUAL FIELD LOSS IN GLAUCOMA

Purpose: To study the relationship between optic nerve head blood flow velocity and visual field loss in patients with primary open-angle glaucoma (POAG) and normal-tension glaucoma (NTG). Methods: This study included 44 eyes of 44 patients with POAG and 44 eyes of 44 patients with NTG. To evaluate optic nerve head blood flow velocity, the square blur rate (SBR)

VARIOUS MECHANISMS RELATED WITH ANGLE CLOSURE GLAUCOMA IN NANOPHTHALMOS

Purpose: To analyze possible mechanisms to induce angle closure glaucoma (ACG) with nanophthalmos. Methods: The anterior segments of 14 eyes from 7 nanophthalmos patients were examined by an Ultrasound Biomicroscope, Cases 1 and 2 had no history of any other ocular diseases or treatments. The right eye in case 3 had untreated uveal effusion syndrome. In cases 4, 5 and 6, LI had been already performed because of increased in-

Growth of straight carbon nanotubes by simple thermal chemical vapor deposition

Straight carbon nanotubes (CNTs) were achieved by simple thermal chemical vapor deposition(STCVD) catalyzed by Mo-Fe alloy catalyst on silica supporting substrate at 700℃. High-resolution transmission electron microscopy images show that the straight CNTs are well graphitized with no attached amorphous carbon. Mo-Fe alloy catalyst particles play a very crucial role in the growth of straight CNTs. The straight carbon nanotubes contain much less defects than the curved nanotubes and might have potential applications for nanoelectrical devices in the future. The simple synthesis of straight CNTs may have benefit for large-scale productions.

Electrical measurement on individual multi-walled carbon nanotubes

The characterization of electrical property of multi-walled carbon nanotubes (MWCNTs) on a nanometer scale is essential for their potential application in nano-electronic devices. The MWCNTs were synthesized on Fe2O3/SiO2/Si substrate and Pt plate substrate by simple thermal chemical vapor deposition (STCVD) technique and the electrical measurements of individual MWCNT grown on silicon substrate and Pt plate substrate were performed by home-made 'nano-manipulator', respectively. According to current-voltage curves obtained in the experiments the current density that the MWCNTs can carry is calculated to be about 107 A/cm2, which is much larger than that of normal metals.

SA-508 cl.3钢锻造的原子能反应堆压力容器整体封头的制造和试验结果

最近,日本已采用了沸水堆底部的新设计,以满足原子能反应堆容器的运行检验要求,并减少对人体的辐照。为了避免复杂的钢板焊接结构,新设计的底部由两个大型锻件,即一个大型整体封头和一个带有小型裙座的下环,及一道焊缝组成。日本铸锻钢公司通过全面的试验,已经研究出已用在设计中的世界上最大锻造封头的新技术。本文介绍最新研究出的110万千瓦沸水堆压力容器大型整锻下封头的制造方法和出色的试验结果。

DETECTION OF GLAUCOMA WITH GDX ACCESS

Purpose: To study the usefulness of the GDx Access (Laser Di- agnostic Technologies, San Diego, CA, USA) for glaucoma detection. Methods: One eye each of 45 normal subjects and of 45 patients with primary open-angle glaucoma or normal-tension glaucoma were studied. The mean deviation of the Humphrey Field Analyzer 30-2 full-threshold program averaged -

LONG -TERM REDUCTION IN THE IN- TRAOCULAR PRESSURE BY LA- TANOPROST

We conducted a retrospective analysis of the intraocular pressure (IOP) in 331 patients treated with latanoprost We studied 299 eyes in 177 patients with primary open angle glaucoma (POAG), 185 eyes in 106 patients with normal tension glaucoma (NTG), 48 eyes in 32 patients with secondary glaucoma (SG), and 23 eyes in 16 patients with primary angle

Selective growth of carbon nanotube on silicon substrates

The carbon nanotube (CNT) growth of iron oxide-deposited trench-patterns and the locally-ordered CNT arrays on silicon substrate were achieved by simple thermal chemical vapor deposition(STCVD) of ethanol vapor. The CNTs were uniformly synthesized with good selectivity on trench-patterned silicon substrates. This fabrication process is compatible with currently used semiconductor-processing technologies, and the carbon-nanotube fabrication process can be widely applied for the development of electronic devices using carbon-nanotube field emitters as cold cathodes and can revolutionize the area of field-emitting electronic devices. The site-selective growth of CNT from an iron oxide nanoparticle catalyst patterned were also achieved by drying-mediated self-assembly technique. The present method offers a simple and cost-effective method to grow carbon nanotubes with self-assembled patterns.

EFFECTS OF NOCTURNAL LOW -DOSE PILOCARPINE ADMINISTRATION AGAINST PLATEAU IRIS CONFIGURATION AFTER LASER IRIDOTOMY

Plateau iris configuration is a major element of angle-closure mechanism, frequently coexisting with relative pupillary block. Since narrowing of chamber angle is retained after laser iridoto-my (LI), optimal management is yet to be established how we can prevent the formation of peripheral anterior synechia.