First applications of ultrasound technology in solid rocket propellant combustion promotion.

The regulation of propellant combustion using ultrasonic waves is proposed. Under ultrasonic frequencies of 25-40 kHz, we systematically examined the combustion characteristics of Al particles, ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB) propellants, and Al-containing Al/AP/HTPB propellants. Ultrasonic treatment increased the ignition delay time of the Al particles by 48.

Inhibition Effect of Triphenylmethane Dyes for the Corrosion of Carbon Steel in CO-Saturated NaCl Corrosion Medium.

Carbon dioxide corrosion presents a significant challenge in the oil and gas field. This study simulates the corrosive environment characteristics of oil and gas fields to investigate the corrosion inhibition properties of three triphenylmethane dyes. The inhibitive performance and mechanisms of these dyes were analyzed through weight loss and electrochemical testing, revealing that crystal violet (CV) exhibited a superior inhibition effectiveness over malachite green (MG) and Fuchsine basic (FB).

A hybrid GA-PSO strategy for computing task offloading towards MES scenarios.

As a new type of computing paradigm closer to service terminals, mobile edge computing (MEC), can meet the requirements of computing-intensive and delay-sensitive applications. In addition, it can also reduce the burden on mobile terminals by offloading computing. Due to cost issues, results in the deployment density of mobile edge servers (MES) is restricted in real scenario, whereas the suitable MES should be chosen for better performance.

Distribution Characteristics of Cadmium and Arsenic in the Typical Vegetable Soil and the Sediment of its Irrigation Sources in Xijiang River Basin at the End of the Farming Slack Period.

We collected the farmland soil and the sediment, carried out sample speciation detection and distribution analyses, explored environmental self-purification on the distribution of Cd and As of agricultural sources. There were significant differences between total Cd and total As and between speciation distribution in the orders of magnitude. Total Cd (mean content was 1.

Rescuing defective tumor-infiltrating T-cell proliferation in glioblastoma patients.

Primary glioblastoma (GBM) is the most prevalent brain cancer, with fast progression and a poor prognosis. Current treatment options are unable to fully manage GBM since it is highly resistant to radiation and chemotherapy, and it cannot be completely removed by surgery. Thus, immunotherapeutic strategies utilizing tumor-infiltrating T cells have been investigated.

Primary haemangiopericytoma outside muscle cone in fossa orbitalis: a case report and review.

Purpose: Orbital haemangiopericytoma (HPC) is a rare tumor with great histological variability and unpredictable clinical and biological behavior. The precise cell type origin is uncertain.

Method: A case report is provided.

Highly selective stir bar coated with dummy molecularly imprinted polymers for trace analysis of bisphenol A in milk.

A water compatible molecularly imprinted polymers (MIPs) coated stir bar for bisphenol A(BPA) was prepared with 3,3',5,5'-tetrabromobisphenol A as the dummy template molecule in this study. The dummy molecularly imprinted polymers coated stir bar (DMIPs-SB) showed better selectivity than the bars coated with polydimethylsiloxane or non-imprinted polymers when used to extract BPA and its three analogues. The saturated adsorption amount of the DMIPs coating was 3.

Dummy molecularly imprinted polymers as the coating of stir bar for sorptive extraction of bisphenol A in tap water.

A unique stir bar coated with dummy molecularly imprinted polymers for bisphenol A was prepared by sol-gel technique. The scanning electron microscopic image of the coating presented a homogeneous surface with a thickness of about 57 ± 2.5 μm.

[Chromatographic fingerprint of Dipsacus asper and analysis by HPLC-MS].

A high performance liquid chromatography (HPLC) method was developed for fingerprint of Dipsacus asper. Analysis were carried out on a Zorbax C-18 column by gradient elution using 0.1% phosphoric acid and acetonitrile as the mobile phases.

[Preparation of sustained release microspheres containing extracts from Caulis sinomenii with polylactic acid and their release property in vitro].

Objective: To prepare polylactic acid microspheres containing total alkaloid extracts of Caulis sinomenii and study their release characteristics in vitro.

Method: Polylactic acid microspheres containing total alkaloid extracts of C. sinomenii were prepared by O/W emulsification solvent-evaporation process.