Ult相关论文
目的:观察超声心动图技术用于诊断胎儿心律失常的临床价值。方法:选取2018年3月至2020年3月于温州医科大学附属苍南医院定期进行产......
Biliary stenosis may represent a diagnostic and therapeutic challenge resulting in a delay in diagnosis and initiation o......
Structures of ovary and ovarian follicle in flathead lobster,Thenus orientalis (Lund, 1793) (Crustac
The ovary contains four morphological components: (1) the ovarian wall, (2) the reproductive epithelium, (3) the cellul......
旨在建立替米考星纳米结构脂质载体(TMS-NLCs)包封率与载药量的测定方法。采用超滤离心法分离TMS-NLCs与游离替米考星,并通过高效......
Oxonitridosilicate phosphors with compositions of Y 1-x Ce x SiO 2 N (x=0-0.1) were synthesized by a new synthetic route......
A nanocomposite UV-visible light-responsive multiwalled carbon nanotube (MWCNT)/titanium dioxide(TiO2) nanophotocatalyst......
Ce1-xBixO2-δ(x = 0.00, 0.03, 0.05, 0.07, 0.10, 0.15, 0.30) solid solutions were synthesized via a hydrothermal method. ......
[Objectives] To explore a new method of ultrasound-assisted extraction of selfheal pigment as well as pigment stability.......
Catalytic solids are arguably the most important catalysts used in pharmaceutical,(petro)chemical and environmental indu......
The thermodynamic investigation of inclusion complexations between β-cyclodextrin and hyoscyamine dr
The inclusion complexations of β-cyclodextrin with four hyoseyarnine drugs wereinvestigated by microcalorimetric techn......
Focused on the low noise figure requirements of erbium-doped preamplifiers, a two stage cascade preamplifier was present......
Influence of Transparent Anode on Luminescent Performance of Near-infrared Organic Light-emitting Di
The optical transmission(200―2000 nm), sheet resistance and work functions of indium-tin oxide(ITO)(100 Ω/□), ITO(12 ......
The effect of alloying element such as Mo,Si or B and its stoichoimetric composition on thetensile properties at room a......
Precisely adjusting the color purity of LaAlO3:Eu3+ red phosphor with 593 and 618 nm emissions is achieved in a strategy......
A Geologic Workshop on Qilian Mountains and Adjacent Area Organized by Researchers from Two Sides of
A geologic workshop on the Qilian Mountains and adjacent region was held by the two sides of the Taiwan Strait from June......
Thrust-nappe structures and extensional struc-tures simultaneously occur in the northern part of the Dabie Mountains. Th......
The Shenguang-II Upgrade(SG-II Up) facility is an under-construction high-power laser driver with eight beams, 24 kJ ene......
Numerical simulation of debris-removal trajectories on the transport mirrors in high-power laser sys
In high-power laser systems(HPLSs), understanding debris-removal trajectories is important in eliminating debris from th......
目的探讨超声检查对异位妊娠—偏子宫角部位妊娠(NCP)的诊断价值。方法回顾分析38例异位妊娠患者术前超声图像特点和临床表现。结......
目的 应用经胸超声测量心外膜脂肪组织厚度(EAT)与冠心病发生及其严重程度的相关性.方法将80例行冠状动脉造影患者根据冠状动脉造......
目的探讨多排螺旋CT(MSCT)在Budd-Chiari综合征(BCS)下腔静脉病变诊断中的应用及其临床价值。方法选取2017年5月至2018年5月单县中......
Under the action of external loads, the critical condition of fracture in ductile materials is closely related to the s......
INVESTIGATION OF METHINE TYPE DISPERSE DYES OF BENZTHIOPHEN-ONE DERIVATIVES Ⅰ. STUDY ON THE RELATION
A series of Methine Type Disperse Dyes of Benzthiophen-one derivatives for polyester fiber was devised and prepared. Th......
Preparation of (Ti, Sn)O_2 Nano-Composite Photocatalyst by Supercritical Fluid Dry Combination Techn
A series of TiO2-SnO2 nano-sized composite photo-catalysts containing Sn (9.3%-30.1%) were prepared from TiCI4 and SnCl4......
Synthesis and Characterization of Two New Photochromic Inorganic-organic Hybrid Materials Based on K
Two new photochromic inorganic-organic hybrid materials formed from Keggin-type polyoxometalates(POMs)and metronidazole(......
The general behavior of micron-particles in the inner domain of porous ceramic vessel was simulated by computational flu......
<正>Under a research project funded by a key program project of the National Natural Science Foundation of China,Prof.Cu......
Microstructure and Mechanical Properties of CNT-Reinforced AZ91D Composites Fabricated by Ultrasonic
Carbon nanotube(CNT)-reinforced AZ91 D alloy composite was fabricated by ultrasonic processing.The microstructure and me......
自从低能离子生物效应在中国发现以来,离子注入生物效应研究受到人们广泛的关注。低能离子束,作为新的诱变源已成功地应用于农作物......
A case of advanced mycosis fungoides with comprehensive skin and visceral organs metastasis:sensitiv
Mycosis fungoides is a common cutaneousT-cell lymphoma, which is usually characterized by chronic, indolence progression......
Preparation and Characterization of CeO_2-TiO_2/SnO_2:Sb Films Deposited on Glass Substrates by R.F.
CeO_2 -TiO_2 films and CeO 2 -TiO 2 /SnO 2 :Sb(6 mol%)double films were deposited on glass substrates by radio-frequency......
Synergistic solvent extraction of rare earth elements (REEs) from nitrate medium was investigated with mixtures of 8-hyd......
IMPROVED PROPERTIES OF METALLOCENE-CATALYZED LINEAR LOW-DENSITY POLYETHYLENE/POLYPROPYLENE BLENDS DU
Metallocene-catalyzed linear low-density polyethylene/polypropylene (mLLDPE/PP) blends were prepared by ultrasonic extru......
Preparation, spectral characteristics and photocatalytic activity of Eu~(3+)-doped WO_3 nanoparticle
Eu3+-WO3 nanoparticles were successfully prepared by the modified method of Pechini. The prepared samples were character......
Ultra-high cycle fatigue behavior of high strength steel with carbide-free bainite/martensite comple
The ultra-high cycle fatigue behavior of a novel high strength steel with carbide-free bainite/martensite (CFB/M) comple......
Reduction pretreatment (RP) process, which is implemented after the billet is completely solidified, is an alternative p......
This paper reports a fluorescence enhancement phenomenon concerning the 2-p-nitro-phenyl-5-biphenyloxazole (NPBO). Alth......
Stability of Retained Austenite Through a Combined Intercritical Annealing and Quenching and Partiti
Intercritical annealing(IA) at various temperatures followed by quenching and partitioning(IAQP) treatments was conducte......
Spectral characteristics of dissolved organic matter in sediment pore water from Pearl River Estuary
As key parts of land-sea transition zones,estuary ecosystems play a very important role in the ocean carbon cycle proces......
通过现浇X形混凝土桩与等截面圆形桩、等周长圆形桩足尺模型静载试验,对比分析了试验各桩桩身轴力分布、桩侧摩阻力以及桩端阻力的......
Hepatocyte nuclear factor 4α induces a tendency of differentiation and activation of rat hepatic ste
AIM: To investigate the effect of hepatocyte nuclear factor 4α(HNF4α) on the differentiation and transformation of hep......
By exploiting the sparsity of the imaging scene, compressed sensing(CS) imaging may provide an effective solution to cop......
Effects of CaCl2,CuCl2,ZnCl2 and PbCl2 on development and hatching Success of eggs of Folsomia candida(Collembola)were s......
Detailed experimental and numerical investigations were performed for an ultra-high-lift front-loaded low-pressure turbi......
Hoek-Brown failure criterion is one of the widely used rock strength criteria in rock mechanics and mining engineering. ......
The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joint
With the shield tunnel going deeper and deeper,the circumferential axial force becomes the goving factor rather than the......
Annular reinforced concrete (RC) members are commonly used in bridge structures and offshore platforms.These RC members ......
利用超声波的分散和粉碎作用,对纳米Al粒子进行了表面疏水处理.然后,以无水乙醇为反应介质,苯乙烯为单体,偶氮二异丁腈为引发剂,聚......
Sodium hypochlorite was used to treat the standard molybdenum concentrates; the oxidization conditions for sodium hypoch......
