The Design of the Emission Layer for Electron Multipliers.

The electron multipliers gain is closely related to the secondary electron emission coefficient (SEE) of the emission layer materials. The SEE is closely related to the thickness of the emission layer. If the emission layer is thin, the low SEE causes the low gain of electron multipliers.

The Design of the AZO Conductive Layer on Microchannel Plate.

When the resistivity of the AZO conductive layer is within the MCP resistance requirement, the interval of the Zn content is very narrow (70-73%) and difficult to control. Aiming at the characteristics of the AZO conductive layer on the microchannel plate, an algorithm is designed to adjust the ratio of the conductive material ZnO and the high resistance material Al2O3. We put forward the concept of the working resistance of the MCP (i.

Role of contrast-enhanced magnetic resonance high-resolution variable flip angle turbo-spin-echo (T1 SPACE) technique in diagnosis of transverse sinus stenosis.

Purpose: Transverse sinus stenosis (TSS) is the most sensitive imaging characteristic of idiopathic intracranial hypertension (IIH). This study aimed to assess the diagnostic performance of contrast-enhanced magnetic resonance high-resolution variable flip angle turbo-spin-echo (T1 SPACE) technique in TSS patients and evaluate the diagnostic accuracy of enhanced T1 SPACE, and phase-contrast magnetic resonance venography (PC MRV) with digital subtraction angiography (DSA) as standard imaging.

Method: This prospective study enrolled 62 patients with suspected IIH and PC MRV-confirmed transverse sinus stenosis.

Neuroform EZ Stenting for Symptomatic Intracranial Artery Stenosis: 30 Days Outcomes in a High-Volume Stroke Center.

To test whether Neuroform EZ stent placement combined with the modified techniques in symptomatic severe intracranial stenosis (ICAS) would result in lower rates of peri-procedural complications of intracranial stenting. We retrospectively reviewed the clinical data from 71 consecutive patients who underwent Neuroform EZ stent placement combined with the modified techniques for symptomatic severe ICAS at our institute between January 2016 and October 2017. The primary outcomes were ipsi-lateral ischemic stroke, intra-cerebral hemorrhage, or death within 30 days after stenting.

Rescue Glue Embolization of Vessel Perforation During Mechanical Thrombectomy for Acute Ischemic Stroke: Technical Note.

Background: Vessel perforation is a serious technical complication during mechanical thrombectomy (MT) for the treatment of acute ischemic stroke with large vessel occlusion. Routine rescue strategy includes balloon occlusion for tamponade, procedure suspension, and lowering or normalizing blood pressure. However, this complication is still associated with poor outcome and high mortality.

Band Offset Measurements in Atomic-Layer-Deposited AlO/ZnAlO Heterojunction Studied by X-ray Photoelectron Spectroscopy.

Pure aluminum oxide (AlO) and zinc aluminum oxide (Zn Al O) thin films were deposited by atomic layer deposition (ALD). The microstructure and optical band gaps (E ) of the Zn Al O (0.2 ≤ x ≤ 1) films were studied by X-ray diffractometer and Tauc method.

The anti-metastatic effect of baicalein on colorectal cancer.

Baicalein, a naturally occurring flavonoid isolated from the roots of Scutellaria baicalensis, is historically and widely used as anti-inflammatory and anticancer therapy. Nevertheless, the anti-metastatic effect and underlying molecular mechanisms of baicalein on colorectal carcinoma (CRC) remain unclear. The aim of the present study was, therefore, to invastigate the anti-metastatic activity of baicalein and related mechanism(s) on CRC cells.

Nano-oxide thin films deposited via atomic layer deposition on microchannel plates.

Microchannel plate (MCP) as a key part is a kind of electron multiplied device applied in many scientific fields. Oxide thin films such as zinc oxide doped with aluminum oxide (ZnO:Al2O3) as conductive layer and pure aluminum oxide (Al2O3) as secondary electron emission (SEE) layer were prepared in the pores of MCP via atomic layer deposition (ALD) which is a method that can precisely control thin film thickness on a substrate with a high aspect ratio structure. In this paper, nano-oxide thin films ZnO:Al2O3 and Al2O3 were prepared onto varied kinds of substrates by ALD technique, and the morphology, element distribution, structure, and surface chemical states of samples were systematically investigated by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoemission spectroscopy (XPS), respectively.

Waffle-cone technique using solitaire AB stent for endovascular treatment of complex and wide-necked bifurcation cerebral aneurysms.

Introduction: To explore the safety and opportunity of the "waffle-cone" technique for the treatment of intracranial aneurysm.

Methods: From November 2009 and May 2012, consecutive data were collected from 136 patients with aneurysms treated by the stent-assisted coiling procedure. Six of these patients were treated using the "waffle-cone" technique.

[Comparative study of right anterolateral minithoracotomy and median sternotomy in the repair of atrial septal defects].

Objective: To compare the effect of right anterolateral minithoractomy and median sternotomy for atrial septal defect closure.

Methods: In this study, 82 patients, whose age ranged from 4 to 46 years with a mean of 15.7+/-8.

Diagnosis and surgical treatment of ruptured aneurysm in sinus of Valsalva.

Objective: To evaluate the methods used to diagnose and surgically treat ruptured aneurysm in sinus of Valsalva (RASV).

Methods: Thirty-seven hospitalized patients with ruptured aneurysms in the sinus of Valsalva from September 1981 to April 2001, including 21 cases (56.7%) of RASV associated with ventricular septal defects (VSD) and 11 (29.