降低浆纱机停台率提高好轴率

降低浆纱机停台率提高好轴率为了配合我厂６０台ＺＡ２０５ｉ－１９０型喷气织机的生产，我厂于１９９３年购买郑纺机ＧＡ３０１－２４０Ａ型双浆槽双程热烘浆纱机，该机性能良好，基本能达到上浆工艺要求。为了更好地提高该机的效率和质量，我们通过对ＣＪ１２／１２ｔｅ...

医护一体化在首台手术准点开台率中的应用

目的探讨医护一体化的实施对于提高首台手术准点开台率的影响。方法随机选取该院在2020年3—8月期间接受首台手术的292例患者进行研究,以实施医护一体化的前后,分为对照组(实施前:2020年3—5月)和观察组(实施后:2020年6—8月)各146例,同时对参与首台手术的45名护理人员进行调查,对比两组患者首台手术准点开台率、护理满意度的差异性,对于护理人员的手术室护理质量进行评价。结果与对照组相比,观察组的首台手术准点开台率及以及护理满意度相对更高,差异有统计学意义(P<0.05)。与实施手术室医护一体化前相比,实施手术室医护一体化后,护理人员在基础保障、转运交接、操作技能以及服务态度等方面的护理质量评分相对更高,差异有统计学意义(P<0.05)。结论在手术室管理工作中,实施医护一体化,可以有效提高首台手术准点开台率,进而促进手术室周转,确保手术治疗高效、顺利进行。

品管圈在降低日间手术当日停台率中的应用研究

目的探讨品管圈活动在降低日间手术当日停台率中的应用效果。方法于2018年12月-2019年10月开展品管圈活动,通过确定活动主题、计划拟定,收集2018年12月-2019年2月在四川大学华西医院日间服务中心预约手术治疗的2696例患者进行回顾性的当日手术停台现况调查和原因分析,设定活动目标并拟定对策,于2019年5月-8月实施拟定对策并确认效果,2019年9月-10月将有效对策标准化并持续实施。对2018年12月-2019年2月(改善前)与2019年9月-10月(改善后)的手术当日停台率进行比较。结果开展品管圈活动后手术当日停台率由改善前的2.89%降至改善后的1.34%,差异有统计学意义(P<0.001)。结论品管圈活动可有效降低日间手术当日停台率,为不断推进日间手术资源优化、质量提升奠定基础。

PDCA在首台择期手术准点开台率中的应用效果观察

随着国家惠民医保政策的日趋完善,以及老百姓对健康的意识加强,有病及时就诊,全国整体手术量日渐增多。手术室是医院内部投入和运行成本最高的科室之一,因此手术室择期手术的运行效率是不少医院持续发展的瓶颈[1]。其运行质量与效率直接影响手术科室甚至整个医院的床位周转、平均住院日、患者住院费用、患者满意度等。为更好地实现手术室资源的优化配置,有必要提高手术室的周转效率,从而节约手术室运营成本[2-4]。手术开台时间是手术室时间管理提高工作效率的重要指标.

PDCA循环法对提高首台手术准点开台率的效果研究

调查研究PDCA循环法在提高首台手术准点开台率的效果。方法:从我院2020年2月开始实施PDCA循环法前后随机各抽取127例患者作为实验的研究对象,实施PDCA循环法前的患者作为观察组,实施后的患者作为对照组,最终比较两组患者的首台手术的准点率。结果:相比PDCA循环法实施前患者的首台手术准点率更高,其中P<0.05,数据具有统计学意义。结论:为提高医院的手术室管理水平,提高手术室的周转效率,使用PDCA循环法的可以达到明显效果,最终患者的首台手术准时率更高。所以此方法非常值得临床推广使用。

Design and verification of an improved experimental platform for stray current in urban rail transit

With the rapid development of urban rail transit,there have been an urgent problem of excessive stray current.Because the stray current distribution is random and difficult to verify in the field,we designed an improved stray current experimental platform by replacing the simulated aqueous solution with a real soil environment and by calculating the transition resistance by measuring the soil resistivity,which makes up for the defects in the previous references.Firstly,the mathematical models of rail-drainage net and rail-drainage netground were established,and the analytical expressions of current and voltage of rail,drainage net and other structures were derived.In addition,the simulation model was built,and the mathematical analysis results were compared with the simulation results.Secondly,the accuracy of the improved stray current experimental platform was verified by comparing the measured and simulation results.Finally,based on the experimental results,the influence factors of stray current were analyzed.The relevant conclusions provide experimental data and theoretical reference for the study of stray current in urban rail transit.

苏冶运营设备管理实践

介绍了苏州冶金机械厂对维修人员的管理,分析了公司的设备管理措施。

做好减少关键重点设备停机率的管理工作

加强设备保养制度的建立,提高设备管理人员及操作人员对设备的熟悉程度,同时运用统计的手段,对关键重点设备的保养及备件消耗进行预控,科学管理,减少设备的停台率,从而达到提高生产效率的目的。

Novel gravity passive navigation system

According to the characteristics of gravity passive navigation, this paper presents a novel gravity passive navigation system （GPNS）, which consists of the rate azimuth platform （RAP）, gravity sensor, digitally stored gravity maps, depth sensor and relative log. The algorithm of rate azimuth platform inertial navigation system, error state-space equations, measurement equations and GPNS optimal filter are described. In view of the measurements made by an onboard gravity sensor the Eotvos effect is introduced in the gravity measurement equation of a GPNS optimal filter. A GPNS is studied with the Matlab/Simulink tools; simulation results demonstrate that a GPNS has small errors in platform attitude and position. Because the inertial navigation platform is the rate azimuth platform in the GPNS and gravity sensor is mounted on the rate azimuth platform, the cost of the GPNS is lower than existing GPNS＇s and according to the above results the GPNS meets the need to maintain accuracy navigation for underwater vehicles over long intervals.

Study on Carcass Traits of Changtai Yak

For studying the germplasm charactedsUcs and carcass traits of Changtai yak, 8 adult yaks （5 male, 3 female） were selected and tested. The results showed that the pre-slaughter weight of the adult male and female Changtai yak was 364.32 and 266.83 kg, respectively, which presented extremely significant difference （P〈0.01）. The carcass weight, net bone weight net meat weight, and the ratio of bone to meat also showed extremely significant difference （P〈O.01）, which were 186.60 and 125.67 kg, 39.74 and 25.00 kg, 147.84 and 100.83 kg, 1：3.73 and 1： 4.03, respectively. The dressing percentage had significant difference which was 51.15% and 49.34%, respectively （P〈0.05）. The neat meat percentage and carcass meat production rate showed no significant difference which were 40.54% and 37.66%, 79.29% and 80.24%, respectively （P〉0.05）. It indicated that Changtai yak has better growth performance and meat performance potential, and worth of further studying and breeding.

Study on rate azimuth platform inertial navigation system

The cost of the gravity passive inertial navigation system will be lower witha rate azimuth platform and gravity sensor constituting a gravity measurement and navigationsystem. According to the system performance characteristics, we study the rate azimuth platforminertial navigation system (RAPINS), give the system navigation algorithm, error equations of theattitude, velocity and position of the rate azimuth platform, and random error models of theaccelerometer and gyro. Using the MATLAB/Simulink tools, we study the RAPINS and RAPINS withvelocity damping. Simulation results demonstrate that the RAPINS with velocity damping has smallerrors in platform attitude and position and satisfies gravity measurement and navigationrequirement.

ISOLATION DESIGN AND SIMULATIONAL EXPERIMENT OF NANOMETER MICRO MOVEMENT TEST-BED

The relation of mass, stiffness and rate of damping is obtained by using the mechanical analysis of the obstructive vibration system of two dimensions for the design of the obstructive vibration system of more freedom and the micro vibration test bed. The result of stimulational experiment indicates that the isolation of vibration of this system is satisfactory. The design method of vibration can be used as the reference to ultra precision machine tool, super micro orientation machanism and so on.

全程无缝隙护理下“前移后延”模式在眼科日间手术患者管理中的应用

探析全程无缝隙护理下"前移后延"模式在眼科日间手术患者管理中的应用优势。方法:收治70例眼科需实施日间手术患者,予以其不同护理服务,实施常规诊疗护理对策(参照组35例)、全程无缝隙护理下"前移后延"模式(测试组35例);比较以上2种护理效果差异性。结果:测试组患者的手术停台率2.86%低于参照组的17.14%,(P<0.05)。测试组患者在术前、术后护理依从性与护理满意度评分均高于参照组,(P<0.05)。测试组护理安全性高于参照组,(P<0.05)。结论:全程无缝隙护理下"前移后延"模式在眼科日间手术患者管理中的应用价值高,值得推广。

Currents and mixing in the northern South China Sea

We investigated the vertical distribution of current velocity data of the entire water column at a site on the continental shelf of the northern South China Sea(SCS) from August 4 to September 6,2007,and found that the characteristics of barotropic and baroclinic tides are mainly diurnal.During the observation period,we also estimated the mixing before and after the passage of Typhoon Pabuk.We found that the internal-wave-scale dissipation rate,the turbulent dissipation rate,and the mixing rate in every water layer increased by about an order of magnitude after the typhoon passage.We analyzed a case of abrupt strong current and calculated the mixing rate before,during,and after the typhoon event.The results show that the internal-wave-scale dissipation rate and the mixing rate in every water layer increased by about two orders of magnitude during the event,while the turbulent dissipation rate increased by about an order of magnitude.Passage of the abrupt strong current could also have increased the mixing rate of affected seawater by more than an order of magnitude.However,the passage of the typhoon differed in that there was an increase in mixing only in the lower layer where the abrupt strong current was particularly strong.The variation of the mixing rate may help us to understand the effects of typhoons and abrupt strong currents on the mixing of seawater.

Hybrid Satellite-Aerial-Terrestrial Networks in Emergency Scenarios:A Survey

Natural disaster or large-scale unexpected events easily make the terrestrial network overloaded,paralyzed, or totally destroyed. It is highly demanded to build an emergency network which can be deployed rapidly, offer high data rate and wide coverage. The emergence of aerial platforms especially the low altitude platforms(LAPs) indicates a stable and reliable direction for the development of emergency network. Hybrid satellite-aerial-terrestrial(HSAT) networks have the ability to provide effective services rather than traditional infrastructures during the emergency situation. In this paper, the aerial platforms and the HSAT networks are surveyed and the key technologies are discussed from several aspects. The challenges of the HSAT networks are also outlined finally.

Study on Seed Dormancy Characteristics of Acer miaotaiense Tsoong in the Qinling Mountains

In order to discuss the dormancy characteristics of seeds about Acer miaotaiense Tsoong,an endangered species,the permeability of husk and the effects of inhibitors on seeds germination were tested.The results showed that water absorption rate and velocity both increased significantly(P<0.01)when the husk spun off seeds,which meant that seed coat was one of the factors affecting dormancy because the lignification restricted absorption of water from the environment.Some inhibitors existing in the pericarp,seed coat and embryo could inhibit the germination of cabbage seeds.There were obvious differences on the germination rate,radicle length and seedling height(P<0.01),and the inhibition degree was in the order of seed coat>pericarp>embryo.

Role of body mass index in colon cancer patients in Taiwan

AIM： To determine the effect of body mass index （BMI） on the characteristics and overall outcome of colon cancer in Taiwan. METHODS： From January 1995 to July 2003, 2138 patients with colon cancer were enrolled in this study. BMI categories （in kg/m2） were established according to the classification of the Department of Health of Tai- wan. Postoperative morbidities and mortality, and survival analysis including overall survival （OS）, disease- free survival （DFS）, and cancer-specific survival （CSS） were compared across the BMI categories.27 kg/m2） patients. Being female, apparently anemic, hypoalbuminemic, and having body weight loss was more likely among underweight patients than among the other patients （P 〈 0.001）. Underweight patients had higher mortality rate （P = 0.00.7） and lower OS （P 〈 0.001） and DFS （P = 0.002） than the other pa- tients. OS and DFS did not differ significantly between normal-weight, overweight, and obese patients, while CSS did not differ significantly with the BMI category. CONCLUSION： In Taiwan, BMI does not significantly affect colon-CSS. Underweight patients had a higher rate of surgical mortality and a worse OS and DFS than the other patients. Obesity does not predict a worse survival.

Strains Recorded Using a Seismometer Data Acquisition Unit

A seismometer data acquisition unit has been used in the Changping seismic station to record the output of a strainmeter. The output of a strainmeter was sampled at a rate of l00/sec by seismometer acquisition from the original rate of 1 per minute. Plenty of high frequency sampled data was recorded. The minute value curve calculated from the seismometer acquisition are consistent with that of the original data sampled by the strain acquisition system. More complete waveforms were recorded with a higher sampling rate, and seismic phase parameters calculated by using higher sampling rate strain seismic waves are also in consistency with the results of its predecessors. Spectra of the strain seismic waves are compared with that of seismic waves recorded by a seismometer in the Shisanling seismic station, and their trends are almost the same. Besides, some lower frequency components still exist in strain seismic waves.

Research on Real-time Monitoring of Abnormal Seismic Noise

The noise data in vertical component records of 85 seismic stations in Fujian Province during 2012 is used as the research object in this paper. The noise data is divided into fiveminute segments to calculate the power spectra. The high reference line and low reference line of station are then identified by drawing a probability density function graph( PDF)using the power spectral probability density function. Moreover, according to the anomalies of PDF graphs in 85 seismic stations,the abnormal noise is divided into four categories: dropped packet, low noise, high noise, and median noise anomalies.Afterwards,four selection methods are found by the high or low noise reference line of the stations,and the system of real-time monitoring of seismic noise is formed by combining the four selection methods. Noise records of 85 seismic stations in Fujian Province in July2013 are selected for verification,and the results show that the anomalous noise-recognition system could reach a 90% success rate at most stations and the effect of selection are very good. Therefore,it could be applied to the seismic noise real-time monitoring in stations.

Estimation of Site Effects on Stations in the Capital Circle Region Using the Generalized Inversion Method

Generalized Inversion Method has been used to estimate the spatial variation of site effects,using the digital data of SH-waves recorded by 63 stations in the Capital Circle Region of China from 2001 to 2006.We gained the site effects of all stations participating in the calculation.We found that the site effect of rock was stabile and about 1.0 from 1.0Hz to 10.0Hz,while the site effect of deposit was high in low frequencies,about 3 ～ 7 from 1.0Hz to 8.0Hz,and the site effect was protuberant at about 5.0Hz,then fell as the frequency increased.The result shows the shape and intensity of station site effects are mainly influenced by the lithology below the station,and possibly also by the local geological structure.