Plasma-assisted synthesis of porous bismuth nanosheets for electrocatalytic CO_(2)-to-formate reduction

The electrochemical carbon dioxide reduction(eCO_(2)RR)to formate,driven by clean energy,is a promising approach for producing renewable chemicals and high-value fuels.Despite its potential,further development faces challenges due to limitations in electrocatalytic activity and durability,especially for nonnoble metal-based catalysts.Here,naturally abundant bismuth-based nanosheets that can effectively drive CO_(2)-to-formate electrocatalytic reduction are prepared using the plasma-activated Bi_(2)Se_(3) followed by a reduction process.Thus-obtained plasma-activated Bi nanosheets(P-BiNS)feature ultrathin structures and high surface areas.Such nanostructures ensure the P-BiNS with outstanding eCO_(2)RR catalytic performance,highlighted by the current density of over 80 mA cm^(-2) and a formate Faradic efficiency of>90%.Furthermore,P-BiNS catalysts demonstrate excellent durability and stability without deactivation following over 50h of operation.The selectivity for formate production is also studied by density functional theory(DFT)calculations,validating the importance and efficacy of the stabilization of intermediates(^(*)OCHO)on the P-BiNS surfaces.This study provides a facile plasma-assisted approach for developing high-performance and low-cost electrocatalysts.

Low-Temperature Synthesis of Nano-AlN Based on Solid Nitrogen Source by Plasma-Assisted Ball Milling

Plasma-assisted ball milling was carried out on the Al+C3H6N6 system and Al+C_(4)H_(4)N_(4) system,respectively.The phase structure,functional groups and synthesis mechanism were analyzed by XRD and FT-IR,and the differences in the synthesis process of nano-AlN with different solid nitrogen sources were discussed.The results show that C3H6N6 has a stable triazine ring structure,and its chemical bond is firm and difficult to break,so AlN cannot be synthesized directly by solid-solid reaction at room temperature.However,there are a large number of nitrile groups(-CN)and amino groups(-NH_(2))in C_(4)H_(4)N_(4) molecules.Under the combined action of plasma bombardment and mechanical energy activation,C_(4)H_(4)N_(4) molecules undergo polycondensation and deamination,so that the ball milling tank is filled with a large number of active nitrogen-containing groups such as N=,≡N,etc.These groups and ball milling activated Al can synthesize nano-AlN at room temperature,with a conversion rate of 92%.SEM,DSC/TG analysis showed that the powder obtained by ball milling was formed by soft agglomeration of many fine primary particles about 50–80 nm.The surface morphology of the powder was loose and porous,and it had strong activity.After annealing at 800℃,the conversion rate of the Al+C_(4)H_(4)N_(4) system reached 99%.

Characteristics and properties of metal aluminum thin films prepared by electron cyclotron resonance plasma-assisted atomic layer deposition technology

Metal aluminum （A1） thin films are prepared by 2450 MHz electron cyclotron resonance plasma-assisted atomic layer deposition on glass and p-Si substrates using trimethylaluminum as the precursor and hydrogen as the reductive gas. We focus our attention on the plasma source for the thin-film preparation and annealing of the as-deposited films relative to the surface square resistivity. The square resistivity of as-deposited A1 films is greatly reduced after annealing and almost reaches the value of bulk metal. Through chemical and structural analysis, we conclude that the square resistivity is determined by neither the contaminant concentration nor the surface morphology, but by both the crystallinity and crystal size in this process.

Numerical simulation of plasma-assisted combustion of methane-air mixtures in combustion chamber

A two-dimensional mathematical model was developed to investigate the effects of dielectric barrier discharge （DBD） plasma on CH4-air mixtures combustion at atmospheric pressure. Considering the physical and chemical processes of plasma-assisted combustion （PAC）, plasma discharge, heat transfer and turbulent were simultaneously coupled into simulation of PAC. This coupling model consists of DBD kinetic model and methane combustion model. By comparing simulations and the original reference＇s results, a high-accuracy of this model was validated. In addition, the effects of PAC actuation parameters on combustion characteristics were studied. Numerical simulations show that with an inlet airflow velocity of 10 m s-1, a CH4-air mixtures＇ equivalence ratio of 0.5, an applied voltage of 10 kV, a frequency of 1200 kHz, compared to conventional combustion （CC）, the highest flame temperature rises by 32 K; outlet temperature distribution coefficient drops by 2.3%; the maximum net reaction rate of CH4 and H20 increase by 11.22% and 12.80% respectively; the maximum CO emission index decreases by 14.61%; the mixing region turbulence mixing time reduces by 89 ms.

Experimental investigation of effects of airflows on plasma-assisted combustion actuator characteristics

The effects of the airflow on plasma-assisted combustion actuator （PACA） characteristics are studied in detail. The plasma is characterized electrically, as well as optically with a spectrometer. Our results show that the airflow has an obvious influence on the PACA characteristics. The breakdown voltage and vibrational temperature decrease, while the discharge power increases compared with the stationary airflow. The memory effect of metastable state species and the transportation characteristics of charged particles in microdischarge channel are the dominant causes for the variations of the breakdown voltage and discharge power, respectively, and the vibrational temperature calculated in this work can describe the electron energy of the dielectric barrier discharge plasma in PACA. These results offer new perspectives for the use of PACA in plasma-assisted combustion.

An Evaluation of Metronidazole Degradation in a Plasma-Assisted Rotating Disk Reactor Coupled with TiO2 in Aqueous Solution

Pollution involving pharmaceutical components in bodies of water is an increasingly serious environmental issue.Plasma discharge for the degradation of antibiotics is an emerging technology that may be relevant toward addressing this issue.In this work,a plasma-assisted rotating disk reactor(plasma-RDR)and a photocatalyst—namely,titanium dioxide(TiO_(2))—were coupled for the treatment of metronidazole(MNZ).Discharge uniformity was improved by the use of a rotating electrode in the plasma-RDR,which contributed to the utilization of ultraviolet(UV)light radiation in the presence of TiO_(2).The experimental results showed that the degradation efficiency of MNZ and the concentration of generated hydroxyl radicals respectively increased by 41%and 2.954 mg∙L^(-1) as the rotational speed increased from 0 to 500 r∙min^(-1).The synergistic effect of plasma-RDR plus TiO_(2) on the generation of hydroxyl radicals was evaluated.Major intermediate products were identified using three-dimensional(3D)excitation emission fluorescence matrices(EEFMs)and liquid chromatography-mass spectrometry(LC-MS),and a possible degradation pathway is proposed herein.This plasma-catalytic process has bright prospects in the field of antibiotics degradation.

Effects of AlN nucleation layer thickness on crystal quality of AlN grown by plasma-assisted molecular beam epitaxy

In this paper, the effects of thickness of AlN nucleation layer grown at high temperature on AlN epi-layer crystalline quality are investigated. Crack-ftee AlN samples with various nucleation thicknesses are grown on sapphire substrates by plasma-assisted molecular beam epitaxy. The AlN crystalline quality is analysed by transmission electron microscope and x-ray diffraction （XRD） rocking curves in both （002） and （102） planes. The surface profiles of nucleation layer with different thicknesses after in-situ annealing are also analysed by atomic force microscope. A critical nucleation thickness for realising high quality AlN films is found. When the nucleation thickness is above a certain value, the （102） XRD full width at half maximum （FWHM） of AlN bulk increases with nucleation thickness increasing, whereas the （002） XRD FWHM shows an opposite trend. These phenomena can be attributed to the characteristics of nucleation islands and the evolution of crystal grains during AlN main layer growth.

Increasing ZnO Growth Rate by Modifying Oxygen Plasma Conditions in Plasma-Assisted Molecular Beam Epitaxy

The authors report that the growth rate of ZnO can be significantly increased by modifying the oxygen plasma conditions in plasma-assisted molecular beam epitaxy. Both the aperture diameter and the distance between the plasma source and the substrate affect the growth rate and the quality of the ZnO films. A short source to substrate distance is essential in achieving higher growth rate, which is explained by reduced chance of oxygen atom collisions to accommodate the short oxygen mean free path at high background pressure. At a shorter source to substrate distance, the growth rate is higher with a larger aperture diameter. The quality of the ZnO thin films grown under different conditions is assessed by x-ray diffraction and room-temperature photoluminescence measurements.

咽腔与颏舌肌锻炼对伴舒张性心功能不全腭咽成形术后遗留轻度阻塞性睡眠呼吸暂停低通气综合征患者的康复影响

目的探讨咽腔与颏舌肌锻炼在伴舒张性心功能不全腭咽成形术后遗留轻度阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者中的应用效果。方法选取2021年1月~2023年8月75例伴舒张性心功能不全腭咽成形术后遗留轻度OSAHS患者进行回顾性研究,其中37例术后进行咽腔与颏舌肌锻炼(观察组),38例未进行咽腔与颏舌肌锻炼(对照组)。收集相关数据,以术后数据为基线值,对比基线及3个月后平均血氧饱和度(mean oxygen saturation,MSpO_(2))、最低血氧饱和度(lowest oxygen saturation,LSpO_(2))、睡眠效率、呼吸暂停指数(apnea index,AI)、睡眠潜伏期、呼吸暂停低通气指数(AHI)、低通气指数(hypopnea index,HI)、微觉醒指数(microarousal index,MAI)、快速眼球运动潜伏期、动脉血二氧化碳分压(PaCO_(2))、pH值、动脉血氧分压(PaO_(2))、左室收缩末期内径(left ventricular end-systolic diameter,LVDs)、血乳酸、左室射血分数(left ventricular ejection fraction,LVEF)、Tei指数、左室舒张末期内径(left ventricular end-diastolic diameter,LVDd)、日间Epworth嗜睡量表(ESS)评分、匹兹堡睡眠质量指数(PSQI)评分及不良心血管事件(major adverse cardiovascular events,MACE)的发生率。结果3个月后,观察组AHI、HI、AI低于对照组,MSpO_(2)、LSpO_(2)高于对照组(P<0.05);观察组睡眠效率高于对照组,日间ESS评分、PSQI评分、MAI低于对照组(P<0.05);观察组PaCO_(2)、LVDd、PaO_(2)、血乳酸、睡眠潜伏期、pH值、LVEF、快速眼球运动潜伏期、LVDd、Tei指数与对照组比较,无显著差异(P>0.05);观察组MACE发生率为5.41%(2/37),与对照组13.16%(5/38)相比,无显著差异(P>0.05)。结论伴舒张性心功能不全腭咽成形术后遗留轻度OSAHS患者接受咽腔与颏舌肌锻炼可改善低通气情况,缓解临床病症,提升睡眠质量,但对患者心功能改善作用有限。

经颈外径路舌根部分切除术联合腭咽成形术治疗舌咽平面阻塞重度OSAHS疗效研究

目的探讨经颈外径路舌根部分切除联合腭咽成型治疗因舌咽平面阻塞导致的重度OSAHS患者手术疗效研究。方法选取因舌咽平面狭窄的重度OSAHS患者35例,经颈外径路舌根部分切除联合腭咽成形术,分析患者手术前后重要指标的改变。结果患者术后半年行PSG检查,AHI:术前64.628±19.017(次/h)、术后18.922±19.532(次/h),P值为0(P<0.01);最低血氧:术前67.114±8.927(%)、术后78.257±8.762(%),P值为0(P<0.01);会厌平面游离缘面积:术前265.217±77.543(mm^(2))、术后364.917±134.557(mm^(2))P值为0(P<0.01);会厌平面游离缘前后径:术前10.962±3.075(mm)、术后12.688±4.682(mm)P值为0.001(P<0.01);会厌平面游离缘左右径:术前24.814±6.321(mm)、术后27.748±5.400(mm)P值为0.001(P<0.01)。结论经颈外径路舌根部分切除联合腭咽成型治疗因舌咽平面阻塞导致的重度OSAHS患者疗效明显。

鼻腔扩容术联合腭咽成形术治疗伴鼻塞症状阻塞性睡眠呼吸暂停低通气综合征的疗效

目的:探讨鼻腔扩容术联合腭咽成形术治疗伴鼻塞症状阻塞性睡眠呼吸暂停低通气综合征(OSAHS)的疗效。方法:选取80例伴鼻塞症状OSAHS患者为研究对象,根据手术方式不同分为对照组和观察组,每组各40例。对照组患者实施单纯腭咽成形术治疗;观察组患者实施鼻腔扩容术联合腭咽成形术治疗,术后随访6个月。比较两组患者临床疗效、鼻腔通气功能[鼻腔阻力、鼾声指数及鼻呼吸总量]、睡眠呼吸指标[呼吸暂停低通气指数(AHI)、最低动脉血氧饱和度(LSaO_(2))、血氧饱和度(SpO_(2))、深睡眠比例及觉醒指数、Epwoeth嗜睡量表(ESS)评分]及生活质量[魁北克睡眠问卷(QSQ)评分]。结果:观察组患者临床总有效率高于对照组(92.50%vs.75.00%,P<0.05)。治疗后6个月,两组患者鼻腔阻力、鼾声指数、AHI、觉醒指数及ESS评分均降低(P<0.05),且观察组低于对照组(P<0.05);鼻呼吸总量、LSaO_(2)、SpO_(2)、深睡眠比例、QSQ各维度评分及总分均升高(P<0.05),且观察组高于对照组(P<0.05)。结论:鼻腔扩容术联合腭咽成形术是一种治疗伴鼻塞症状OSAHS的有效方式,可改善患者鼻腔通气功能及睡眠呼吸参数,提升生活质量。

Mutual effects between a gliding arc discharge and a premixed flame

Mutual effects between a gliding arc(GA)discharge at atmospheric pressure and a premixed CH_(4)/air flame were experimentally investigated.Effects of the flame on the GA were studied using simultaneous measurements of the current,the voltage,and the instantaneous images of the plasma columns.The GA in the flame has a thicker and more diffusive plasma column,and it is more frequently ignited at a smaller breakdown voltage than that in the air.The GA extension velocity and the gliding velocity in the flame are larger than those in the air.The electrode voltage drop of the GA discharge in the flame is about 160 V,whereas that in the air is about 220 V.Compared with the GA in the air,the different features of the GA in the flame can be explained by high-temperature,weakly ionized,and species-abundant environment that are generated by the premixed CH_(4)/air flame.Effects of the gliding arc discharge on the premixed flames were demonstrated using planar laser-induced fluorescence of hydroxyl radicals(OH)and formaldehyde(CH_(2)O).OH and CH_(2)O can be formed in the CH_(4)/air mixture in the presence of the GA due to kinetic effects,and the increase of OH and CH_(2)O shows the great potential of the GA for combustion enhancement.

联合包膜内外扁桃体等离子切除术、腭咽弓转粘膜瓣缝合腭咽成型术、腺样体等离子轮廓化切除治疗大儿童鼾症的疗效分析

目的探讨联合包膜内外扁桃体等离子切除术、腭咽弓转粘膜瓣缝合腭咽成型术、腺样体等离子轮廓化切除治疗大儿童鼾症的疗效。方法非随机选取2022年3月—2024年4月茂名市中医院收治的60例大儿童鼾症患儿作为研究对象,按治疗方法不同分为两组,各30例。对照组采用扁桃体包膜外等离子切除术与腺样体等离子消融术进行治疗,观察组采用包膜内外扁桃体等离子切除术、腭咽弓转粘膜瓣缝合腭咽成型术、腺样体等离子轮廓化切除进行联合治疗。对比两组手术指标、通气功能和睡眠质量、临床疗效、并发症发生情况。结果观察组术后疼痛时间、手术时间、住院时间、术中出血量均低于对照组,差异有统计学意义(P均<0.05)。治疗后,观察组睡眠呼吸暂停低通气指数低于对照组,睡眠质量高于对照组,差异有统计学意义(P均<0.05)。观察组疗效为100%(30/30),高于对照组的83.33%(25/30),差异有统计学意义(χ^(2)=5.454,P<0.05)。观察组并发症发生率为3.33%(1/30),低于对照组的20.00%(6/30),差异有统计学意义(χ^(2)=4.043,P<0.05)。结论采用包膜内外扁桃体等离子切除术、腭咽弓转粘膜瓣缝合腭咽成型术、腺样体等离子轮廓化切除联合治疗大儿童鼾症患儿,可改善患儿临床症状及相关手术指标,临床治疗效果较为理想且安全性较高,值得借鉴。

Comparison of the effect of different external electrodes on discharge plasma-assisted diffusion flame stabilization

To optimize the design of plasma injectors,the influence of different external electrodes on plasma-assisted flame stabilization was assessed by using a nonequilibrium plasma injector flame control setup.The electrical characteristics of the injector,flame structure parameters,flame intensity,discharge power,and cost-to-effectiveness ratio under different external electrodes(four mesh electrodes and one copper foil electrode)were analyzed using electrical and optical methods.The results show that reducing the mesh size of the external electrode leads to a decrease in breakdown voltage.Compared with a ceramic dielectric barrier-based injector,an injector with a quartz dielectric barrier produces a higher breakdown voltage under the same conditions.For the same actuation voltage,the discharge current increases as the mesh size of the external electrode decreases,and combustion is enhanced by the discharge plasma;therefore,it is better to adopt a smaller mesh hole size to realize good flame stabilization under a lower actuation voltage.However,under the studied working conditions,reducing the mesh hole size of the external electrode increases the cost-to-effectiveness ratio of plasma injector-based flame stabilization.Thus,considering the cost-to-effectiveness ratio and the weight of the injector,an external electrode with a larger mesh hole size should be chosen,which contradicts the above rule.

Plasma-Assisted Dinitrogen Activation via Dual Platinum Cluster Catalysis:A Strategy for Ammonia Synthesis under Mild Conditions

The activation and reduction of N_(2)to produce ammonia under mild conditions is of great interest,but challenges remain.Here,we report a breakthrough in efficient dinitrogen cleavage by employing small Ptn+(n=1–4)clusters and convenient plasma assistance.The reactivity of Pt3+is found to be substantially higher than that of other clusters,and the formed Pt3N7+shows prominent mass abundance among the odd-nitrogen products.We illustrate that a chain reaction path within dual cluster cooperation,especially via a“3+2”mode,is beneficial to N≡N triple bond dissociation,embodying efficient synergistic catalysis.A key intermediate containing a bridged N_(2)of binding with two Pt clusters facilitates N_(2)activation with significantly enhanced interactions between the d orbitals of Pt and the antibondingπ*-orbitals of N_(2).Furthermore,by reacting the Pt_(n)N_(m)+clusters with H_(2),we observed hydrogenation products of both evenand odd-hydrogen species,indicative of ammonia release.The in situ synthesized platinum nitride clusters,typically Pt_(3)N_(7)+,induce a highly active N site for hydrogen anchoring,enabling a cost-effective hydrotreating process for ammonia synthesis.

不同剂量右美托咪定对OSAHS腭咽成形术患儿苏醒期躁动及血流动力学的影响

目的:探讨不同剂量右美托咪定对阻塞性睡眠呼吸暂停低通气综合征(OSAHS)腭咽成形术患儿苏醒期躁动及血流动力学的影响。方法:选取2019年1月至2021年8月接受腭咽成形术治疗的100例OSAHS患儿,采用随机数表法分为A组(33例)、B组(33例)和C组(34例)。三组患儿均采用全身麻醉,于麻醉诱导前,A组给予0.2μg/kg右美托咪定,B组给予0.4μg/kg右美托咪定,C组给予0.6μg/kg右美托咪定。采用广义估计方程分析两组患儿入室时(T0)、泵注10 min时(T1)、拔管时(T2)、苏醒时(T3)的血流动力学[平均动脉压(MAP)、心率(HR)、血氧饱和度(SpO2)]相关指标,比较三组患儿苏醒期相关情况。结果:基于广义估计方程分析,结果显示,T1时三组患儿HR水平均较T0时升高,但在T2时回降,且趋于平稳,但三组患儿各时点之间比较差异无统计学意义(P>0.05);三组患儿MAP、SpO2水平先降后升,但三组患儿各时点之间比较差异无统计学意义(P>0.05);C组的苏醒时间和拔管时间均长于A组和B组,B组、C组的儿童麻醉苏醒期躁动量表评分均低于A组(P<0.01),但A组和B组的苏醒时间和拔管时间比较、B组和C组的PAED评分比较,差异无统计学意义(P>0.05)。结论:不同剂量的右美托咪定均可维持OSAHS腭咽成形术患儿的血流动力学稳定,无剂量相关性,但0.4μg/kg右美托咪定可有效降低患儿术后躁动发生风险,且患儿呼吸和意识恢复更快。

Sub-nanometer finishing of polycrystalline tin by inductively coupled plasma-assisted cutting

Polycrystalline tin is an ideal excitation material for extreme ultraviolet light sources.However,the existence of grain boundary(GB)limits the surface roughness of polycrystalline tin after single-point diamond turning(SPDT).In this work,a novel method termed inductively coupled plasma(ICP)-assisted cutting was developed for the sub-nanometer finishing of polycrystalline tin.The relationship between ICP power,processing time,and modification depth was established by thermodynamic simulation,and the fitted heat transfer coefficient of polycrystalline tin was 540 W/(m2·K).The effects of large-thermal-gradient ICP treatment on the microstructure of polycrystalline tin were studied.After 0.9 kW ICP processing for 3.0 s,corresponding to the temperature gradient of 0.30 K/μm,the grain size of polycrystalline tin was expanded from a size of approximately 20-80μm to a millimeter scale.The Taguchi method was used to investigate the effects of rotational speed,depth of cut,and feed rate on SPDT.Experiments conducted based on the ICP system indicated that the plasma-assisted cutting method promoted the reduction of the influence of GB steps on the finishing of polycrystalline tin,thereby achieving a surface finish from 8.53 to 0.80 nm in Sa.The results of residual stress release demonstrated that the residual stress of plasma-assisted turning processing after 504 h stress release was 10.7 MPa,while that of the turning process without the ICP treatment was 41.6 MPa.

电子鼻咽镜评估改良悬雍垂腭咽成形术中软腭切除范围的作用

目的:利用电子鼻咽镜测量Ⅱ型阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者上气道解剖结构,以指导在改良悬雍垂腭咽成形术中精准切除软腭范围,提高手术疗效。方法:自2020年2月至10月,应用电子鼻咽镜,在清醒状态下,经鼻对38例Ⅱ型OSAHS患者腭部的长度及咽后壁派氏嵴的距离进行术前评估测量,采用完整保留悬雍垂及软腭游离缘改良术式,切除过长的软腭组织,平均切除软腭长度(10.3±3.7)mm。术后随访6~12月,复查腭部的长度及派氏嵴的距离,观察术后并发症及临床疗效。结果:根据术前电子鼻咽镜测量结果,切除过长的软腭组织进行改良悬雍垂腭咽成形术,患者术后临床症状明显改善,无出现术后常见的并发症;PSG检测术前、后明显改善,其疗效有统计学意义(P<0.05)。结论:应用电子鼻咽镜对Ⅱ型OSAHS患者的上气道解剖结构进行测量,可以为手术治疗OSAHS患者提供准确的软腭切除范围,有效防止术后并发症的发生,提高手术疗效。

腭垂腭咽成形术联合鼻腔鼻窦手术治疗成人阻塞性睡眠呼吸暂停综合征的效果观察

目的:分析腭垂腭咽成形术联合鼻腔鼻窦手术治疗成人阻塞性睡眠呼吸暂停综合征的临床效果。方法:选取2021年4月—2023年4月贵阳市第二人民医院收治的成人阻塞性睡眠呼吸暂停综合征患者45例为研究对象,根据随机数字表法分为对照组(23例)与研究组(22例)。对照组采用腭垂腭咽成形术治疗,研究组采用腭垂腭咽成形术联合鼻腔鼻窦手术治疗。比较两组患者术后并发症发生情况、治疗效果、睡眠呼吸暂停低通气指数(AHI)、最低血氧饱和度(LSaO2)。结果:两组患者并发症发生率比较,差异无统计学意义(P>0.05);研究组治疗总有效率高于对照组,差异有统计学意义(P=0.011);术后,研究组AHI低于对照组,LSaO2高于对照组,差异有统计学意义(P<0.001)。结论:腭垂腭咽成形术联合鼻腔鼻窦手术治疗成人阻塞性睡眠呼吸暂停综合征,可提升治疗效果,改善AHI和LSaO2水平,减少并发症。

氟比洛芬酯联合地佐辛用于悬雍垂腭咽成形术术后静脉自控镇痛的效果

目的：观察氟比洛芬酯联合地佐辛用于阻塞性睡眠呼吸暂停综合征（OSAS）患者悬雍垂腭咽成形术（UPPP）术后镇痛作用。方法选择60例 OSAS 患者，年龄26～58岁，随机分为三组，每组20例。术后患者均采用静脉自控镇痛（PCIA），FD 组：氟比洛芬酯1 mg／kg＋地佐辛0.4μg／kg＋阿扎司琼共100 ml；D 组：地佐辛0.8μg／kg＋阿扎司琼共100 ml；S 组：舒芬太尼2μg／kg＋阿扎司琼共100 ml；背景剂量2 ml／h，锁定时间15 min，单次剂量0.2 ml，负荷剂量5 ml。观察术后1、2、6、12、24、48 h 的 VAS 疼痛评分及恶心呕吐、嗜睡、瘙痒等不良反应。结果三组患者均获得良好的镇痛效果，各时点 VAS 疼痛评分差异无统计学意义。FD 组总的不良反应只有1例（5％），D 组有2例（10％），S 组有6例（30％），FD 组明显低于 S 组（P＜0.05）。结论氟比洛芬酯联合地佐辛用于 UPPP 术后镇痛，有良好的镇痛效果，且不良反应少。