查询词典 drainage tube

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结，并分析了虹吸式排水系统的优势；再对虹吸式排水管道进行原型试验研究，采用不同管径不同立管高度，对系统流量、管道压强进行量测，观察了各种工况下的流态，对其水力特性进行研究分析，找出影响水力特性的落差、管径主要因素以及与排水量的关系；进一步应用计算流体力学Fluent软件，采用标准κ-ε模型与RNGκ-ε模型，计算过程应用有限体积法和二阶迎风格式对数值模型进行离散，速度和压力的耦合采用SIMPLE算法，分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析，通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究；本文首次采用结合原型试验与数值模拟相结合的方法，对虹吸式屋面雨水排水系统进行研究，试验与模拟相互验证，并进行拓展，很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题，结果正确合理，为排水管网系统设计和优化研究提供了有效的方法，对工程设计有较好的参考价值。

Main Product or Service: hot air pipe; PUR tube; Teflon high-pressure tube; high-pressure tubing; metal hose; hot-air tube; silicone hot-air tube; high pressure air tube; anti-scalding temperature Teflon tube; ultra-high pressure pipe; PTFEHOSE tube; Teflon products; Express connector; anti-hot Teflon tube; pack cotton Teflon tube; import Teflon tube; all-electric injection molding machine oil; Die Tap; hardware accessories; stainless steel tube; Main industries: insulating casing; integrated companies; machine Auxiliary; Chemical Equipment agent; other unclassified; Hydraulic pipe fittings

主营产品或服务：热风管；PUR管；铁氟龙高压管；高压油管；金属软管；热风管；硅胶热风管；高压空气管；防烫铁氟龙高温管；超高压管；PTFEHOSE管；铁氟龙制品；快速接头；防烫铁氟龙管；包棉铁氟龙管；进口铁氟龙管；全电动注塑机专用油；模具水嘴；五金配件；不锈钢管；主营行业：绝缘套管；综合性公司；塑机辅机；化工设备代理；其他未分类；液压管件

Results: Among 80 cases of ACST, 76 cases were successfully implemented LC, gallbladder puncture and decompression choledocholithotomy T-tube drainage were performed in 11 cases, choledocholithotomy T-tube drainage in 15 cases, common bile duct gall bladder fistula Toishi T-tube drainage in 14 cases, gallbladder removal choledocholithotomy T-tube drainage in 36 cases, operative time 15-120 min, bleeding 10-80 ml; 4 cases transitted laparotomy, 1 case of gallbladder and surrounding tissue adhesion serious, ampulla signs disappear, and the hepatoduodenal ligament ill-defined, 2 cases of gallbladder contraction deep within the liver, gallbladder triangle scar adhesions, and 1 case of duct stone impaction and severe adhesions; postoperative hospital stay was 8-11 d, all were well recovered; pathological diagnosis, acute cholecystitis in 41 cases （51.2％）, acute suppurative cholecystitis in 24 cases （30.0％）, acute gangrenous cholecystitis in 15 cases （18.8％）.

结果：重症急性胆囊炎80例，76例成功实施LC，其中，胆囊穿刺减压胆总管切开取石T管引流11例，胆总管切开取石T管引流15例，胆囊造瘘胆总管切开取石T管引流14例，胆囊切除胆总管切开取石T管引流36例，手术时间15～120 min，术中出血10～85 ml；4例中转开腹，其中，1例胆囊与周围组织粘连严重，壶腹部标志消失，与肝十二指肠韧带界限不清，2例胆囊萎缩深陷肝脏内，胆囊三角区瘢痕粘连，1例胆囊管结石嵌顿且严重粘连，术后住院时间8～11 d，术后恢复均良好，治愈出院；80例术后病理诊断，急性单纯性胆囊炎41例（51.2％），急性化脓性胆囊炎24例（30.0％），急性坏疽性胆囊炎15例（18.8％）。

Furthermore the performances of heat transfers including corrugate plate, tube and fin-tube were compared under the same conditions. The results show that when the air frontal velocity is between 2.45 and 4.1m/s, the overall heat-transfer coefficient of plate heat exchanger ranges from 100 to 160 W/m^2/ equal to one sixth of that of fin- tube cooler based on tube outside area, which is about 70% higher than that of tube cooler. The volumetric heat transfer capacity of plate cooler is 1.5 times as that of fin-tube cooler and 15 times as that of tube cooler. The heat transfer capacity of per unit power of plate cooler is 5.5 times as that of tube cooler and similar results for fin-tube cooler.

在相同工况下，比较了波纹板式、光管式和翅片管式空冷器的性能指标，结果表明：迎面风速在2.45~4.1m/s之间，波纹板式空冷器传热系数达到100~160W/平方公尺/℃；约比光管式提高70%，但只有以管束外表面为基准的翅片管式传热系数的六分之一；板式空冷器单位体积换热量约是翅片管式空冷器的1.5倍，是光管式的15倍；板式空冷器单位功耗换热量约是光管式空冷器的5.5倍，而翅片管式空冷器与光管式空冷器则相差不大。

objective the aim of this study is to investigate the expression and the distribution of the nerve growth factor during the period of neural tube development of human embryo.method early development of neural tube was studied in human embryos about 35 gestational days by using immunocytochemical abc technique.result there were ngf immuno-positive substances in the cytoplasm and nuclei of neuroepithelial cells in the ventricular zones of neural tube.in the intermediate zone of neural tube,ngf immunoreactivity was detected in the nuclei of some neurons,or the processes of other neurons which contained no ngf-immunoreactive substances in their nuclei;the expression pattern of ngf in the marginal zone of neural tube was similar to that of the intermediate zone.the density of ngf-immunorecative particles was higher on the rostrum side of neural tube than on the caudal side.the ngf immuno-positive cells were also observed among the somites of embryo under the neural tube.conclusion these results suggest that ngf was an important signal molecule to induce neural tube differentiation,and that ngf may play a significant role in regulation of the biological function of neurons in developing neural tube.

目的 研究捷安肽素的抗真菌作用机理。方法采用形态学方法和同位素标记法。显微形态观察经捷安肽素处理后的供试真菌的形态学变化。进一步采用14c同位素标记的特异底物&尿苷二磷酸-（14c）-葡萄糖&示踪，研究捷安肽素对真菌(1，3)-β-d-葡聚糖合成酶活性反应的影响。结果研究神经生长因子在早期人胚神经管发育过程中的定位表达。方法采用免疫细胞化学 abc法染色，研究35天人胚的发育情况。结果在人胚神经管的室管带中，神经元的细胞质和细胞核ngf免疫反应阳性；在中间带，一部分神经元的细胞核ngf免疫反应阳性，另外一部分神经元的细胞核ngf免疫反应阴性，而其突起ngf免疫反应阳性；在边缘带ngf的表达与中间带相似。在神经管的头侧ngf阳性反应较强，神经管的尾侧ngf阳性反应较弱。结论 ngf在人胚神经管免疫反应阳性，表明ngf可能是诱导神经管分化发育的重要信号分子，提示ngf可能在人胚神经管的发育中具有十分重要的作用。神经生长因子；人胚；神经管；发育

All cases were given debridement, and changed the pattern of fracture fixation or adjusting the position of outer fixation device. Then the VAC was applied in a region- and layer-wise manner in the intermuscular space, interjoint space and the interfracture space., The sequential and time of tube withdrawal was decided by tube position and drainage pattern. with drainage changes every 5~7 days according to the drainage state. The drainage were applied 1~4 times per case, averaging out at 2.2 times.

所有病例均先行清创，更换骨折固定类型或调整外固定架固定位置，在感染的肌肉间隙、关节间隙、骨折间隙等分区应用、分层应用VAC，并根据置管部位和引流情况决定拔管次序和时间， 5～7天根据引流情况进行更换引流装置，应用次数为1～4次/例，平均2.2次/例。

Common transparent quartz tube SiO2 more than 99.9% purity, geometry, chemical stability, thermal stability, resistance to thermal denaturation and anti-crystallization properties of the fine, optical transmittance above 93%; from hydroxyl in hydroxyl tube below 10ppm, after vacuum from hydroxyl, hydroxy-up to 5ppm below apply to high-pressure mercury lamp, sodium lamp, metal halide lamp, such as low-hydroxy products; white pipe, used mainly for heating tube, heating tube, far infrared control the manufacture, milky quartz pearl quartz tube possession of new technology, the management side as if the surface of pearls, all aspects of performance than ordinary white tube better; filter tube to filter out ultraviolet UV band in the harmful wavelengths of 190-320nm ultraviolet light source applied to environmental protection manufacturing; no ozone UV filter tube and pipe the contrary, through the ultraviolet wavelength around 253.7nm, there is no ozone UV lamp main material, widely used in medical equipment, water treatment, food hygiene, such as sterilization; quartz casing diameter 8-120mm in between, has a single opening, double opening round, flat-top shape and widen the mouth of necking, flanging, sanding and other processing, high temperature resistance, corrosion resistance, good light transmission and moisture-proof, explosion-proof characteristics such as widely used in aquarium thermostat, disinfection equipment, heating pipes, water treatment, metal halide lamp, such as product manufacturing and environmental protection, health, chemical and other fields; quartz Clamshell specifications 8-180mm, the shape according to the customer requirements, the bubble shell can take capillary has to carry out the exhaust, high temperature, light transmission is good, mainly for JC, JD, H1-H7, the stage lights and high-pressure mercury lamp, sodium lamp, metal halide lamp, such as product manufacturing; quartz water jacket mainly used in printing and packaging processing industry ---- UV light-curing, UV light curing is a very reliable and can be used to replace hot air dryers and other drying technique of curing technology, which in the printing and packaging of the processing industry has been widely.

普通透明石英管SiO2纯度达99.9%以上，几何尺寸、化学稳定性、热稳定性、抗热变性和抗析晶性能优良，光学透过率达93%以上；脱羟管羟基在10ppm以下，经过真空脱羟，羟基可达5ppm以下，适用于高压汞灯、钠灯、金卤灯等低羟基产品；乳白管，主要用于发热管、加热管、远红外管的制造，珠光石英管乳白石英管之新工艺，管面好象珍珠的表面，各方面性能比普通乳白管更优；滤紫外线管能够滤除紫外光谱波段中对人体有害的190-320nm波长的紫外线，适用于环保光源的制造；无臭氧管与滤紫外线管相反，可透过253.7nm左右波长的紫外线，是无臭氧紫外线杀菌灯的主要材料，广泛用于医疗器械、水处理、食品卫生等杀菌；石英套管直径范围在8-120mm之间，有单开口、双开口、圆头、平头等外形和扩口、缩口、翻边、磨砂等加工，具有耐高温、耐腐蚀、透光性好及防潮、防爆等特点，广泛使用于水族恒温器、消毒设备、加热管、水处理、金卤灯等产品的制造和环保、卫生、化工等领域；石英泡壳规格Φ8-180mm，形状根据客户要求，泡壳上可以接有毛细管，可进行排气，耐高温，透光性好，主要用于JC、JD、H1-H7、舞台灯和高压汞灯、钠灯、金卤灯等产品的制造；石英水套主要用于印刷和包装加工工业---- UV光固化， UV光固化是一种十分可靠的、可取代热空气干燥机和其他干燥技术的固化技术，它在印刷和包装加工工业已经得到广泛应用。

Results 4 cases were treated by thoracic close drainage as long term treatment; 6 cases were cured with exclusive thoracic close drainage; 123 cases of bronchopleural fistula were treated with decortication or thoracoplasty after their symptoms of ardent fever, cough and expectoration vanished due to drainage ; 23 cases of hronchopleural fistula were treated with thoracic close drainage, cleaning up focus of infectionrestoring fistulae-splanchnic wall decortication and repeated chest drainage ,4 cases were cured and the extent of operation and thoracic deformity in 19 cases were diminished.

结果 4例不能耐受进一步手术者采用闭式引流术作为永久性的治疗；6例单纯引流治愈；123例因支气管胸膜瘘等经引流后高热、咳嗽、咳痰等症状消失，择期行胸膜纤维板剥脱术或胸廓成形术；23例合并支气管胸膜瘘拟行胸廓成形术的患者，经引流、病灶清除-瘘修补-脏层纤维板剥脱术、再引流，4例治愈，19例减小了手术范围及胸廓畸形的程度。

The effects of many factors in the wet end on drainage and retention of PEO/attapulgite system: During the scope of 2-12, pH has no effect on drainage, and retention ratio lower in acidic conditions and higher in neutral or alkaline conditions. There were some improvement on slurry's drainage and some impairment on retention efficiency for the existence of inorganic salts. Lignosulphonate had no effect on drainage and made retention ratio decrease 5-8%; lignosulphonate and xylan had no effect on drainage and made retention ratio decrease a little. 5 .Attapulgite could be modified by intercalation.

纸机湿部系统的影响因素对PEO／凹凸棒粘土助留体系的助留助滤效果的影响表现为：pH值在2-12范围内，对助滤效果是没有影响的，使助留效果在酸性条件下较差，而在中碱性条件下较好；无机盐的存在使浆料的滤水性能有一定的改善，使助留效果有所削弱；木质素磺酸盐对助滤效果是没有影响的，使留着率下降了5—8％；木质素磺酸盐与聚木糖对助滤效果也是没有影响的，使留着率略有下降。

Is a professional production of large-scale explosion-proof heaters, high temperature heat pipetemperature Electrical, mechanical and electrical cellular heat pipe dehumidification drying, central air-conditioning fan coil heater, heating tube electric reflow wave soldering wire,, shoe-making mechanical and electrical heat pipe, mold heating pipes, electric cigarette tube equipment, pharmaceutical machinery electric pipe, electroplating equipment, heating tube, heater Teflon, titanium heating tube, far infrared heating tube, quartz heating tube, ceramic tube heater, titanium system without Pb furnace, electric lap Limited, and Deputy States imports and compensation of thermocouple wire.

深圳市新宏大电热科技有限公司是一家专业生产大型防爆加热器、高温型模温机电热管、蜂巢式除湿干燥机电热管、中央空调风机盘管加热器、波峰焊回流焊电热管电热丝、、制鞋机电热管、模具加热管、卷烟设备电热管，制药机械电热管、电镀设备加热管、铁弗龙加热器、钛加热管、远红外电热管、石英电热管、陶瓷电热管、钛制无铅锡炉、电热圈的有限公司，并代理各国进口热电偶及补偿导线。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。