mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Comparison of products from ERA-40, NCEP-2, and CRU with station data for summer precipitation over China

Summer precipitation products from the 45-Year European Centre for Medium-Range Weather Forecast (ECMWF) Reanalysis (ERA-40), and NCEP-Department of Energy (DOE) Atmospheric Model Intercomparison Project (AMIP-H) Reanalysis (NCEP-2), and Climatic Research Unit (CRU) TS 2.1 dataset are compared with the corresponding observations over China in order to understand the quality and utility of the reanalysis datasets for the period 1979–2001. The results reveal that although the magnitude and location of the rainfall belts differ among the reanalysis, CRU, and station data over South and West China, the spatial distributions show good agreement over most areas of China. In comparison with the observations in most areas of China, CRU best matches the observed summer precipitation, while ERA-40 reports less precipitation and NCEP-2 reports more precipitation than the observations. With regard to the amplitude of the interannual variations, CRU is better than either of the reanalyses in representing the corresponding observations. The amplitude in NCEP-2 is stronger but that of ERA-40 is weaker than the observations in most study domains. NCEP-2 has a more obvious interannual variability than ERA-40 or CRU in most areas of East China. Through an Empirical orthogonal function (EOF) analysis, the main features of the rainfall belts produced by CRU agree better with the observations than with those produced by the reanalyses in the Yangtze-Huaihe River valley. In East of China, particularly in the Yangtze-Huaihe River valley, CRU can reveal the quasi-biennial oscillation of summer precipitation represented by the observations, but the signal of ERA-40 is comparatively weak and not very obvious, whereas that of NCEP-2 is also weak before 1990 but very strong after 1990. The results also suggest that the magnitude of the precipitation difference between ERA-40 and the observations is smaller than that between NCEP-2 and the observations, but the variations represented by NCEP-2 are more reasonable than those given by ERA-40 in most areas of East China to some extent.
Improved ENSO forecasts by assimilating sea surface temperature observations into an intermediate coupled model

A simple method for initializing intermediate coupled models (ICMs) using only sea surface temperature (SST) anomaly data is comprehensively tested in two sets of hindcasts with a new ICM. In the initialization scheme, both the magnitude of the nudging parameter and the duration of the assimilation are considered, and initial conditions for both atmosphere and ocean are generated by running the coupled model with SST anomalies nudged to the observations. A comparison with the observations indicates that the scheme can generate realistic thermal fields and surface dynamic fields in the equatorial Pacific through hindcast experiments. An ideal experiment is performed to get the optimal nudging parameters which include the nudging intensity and nudging time length. Twelve-month-long hindcast experiments are performed with the model over the period 1984–2003 and the period 1997–2003. Compared with the original prediction results, the model prediction skills are significantly improved by the nudging method especially beyond a 6-month lead time during the two different periods. Potential problems and further improvements are discussed regarding the new coupled assimilation system.
Ultraviolet photovoltaic characteristic of MgB2 thin film

Fast photoelectric effects have been observed in MgB2 thin film fabricated by chemical vapour deposition. The rise time was -10 ns and the full width at half-maximum was -185ns for the photovoltaic pulse when the film was irradiated by a 308 nm laser pulse of 25 ns in duration. X-ray diffraction and the scanning electron microscope revealed that the film was polycrystalline with preferred c-axis orientation. We propose that nonequilibrium electron-hole pairs are excited in the grains and grain boundary regions for MgB2 film under ultraviolet laser and then the built-ln electric field near the grain boundaries separates carriers, which lead to the appearance of an instant photovoltage.
Microstructure and optical absorption of  Au-MgF2 nanoparticle cermet films

The microstructure and optical absorption of Au-MgF2 nanoparticle cermet films with different Au contents are studied. The microstructural analysis shows that the films are mainly composed of the amorphous MgF2 matrix with embedded fcc Au nanoparticles with a mean size of 9.8-21.4nm. Spectral analysis suggests that the surface plasma resonance （SPR） absorption peak of Au particles appears at λ=492-537nm. With increasing Au content, absorption peak intensity increases, profile narrows and location redshifts. Theoretical absorption spectra are calculated based on Maxwell-Garnett theory and compared with experimental spectra.
On-line measurement of water-soluble ions in ambient particles Journal

Combining the system of rapid collection of ambient particles and ion chromatography, the system of rapid collection of fine particles and ion chromatography (RCFP-IC) was established to automatically analyze on-line the concentrations of water-soluble ions in ambient particles. Here, the general scheme of RCFP-IC is described and its basic performance is tested. The detection limit of RCFP-IC for SO 4 2-, NO 3-, NO 2-, Cl- and F- is below 0.3 μg m-3. The collection efficiency of RCFP-IC increases rapidly with increasing sized particles. For particles larger than 300 nm, the collection efficiency approaches 100%. The precision of RCFP-IC is more than 90% over 28 repetitions. The response of RCFP-IC is very sensitive and no obvious cross-pollution is found during measurement. A comparison of RCFP-IC with an integrated filter measurement indicates that the measurement of RCFP-IC is comparable in both laboratory experiments and field observations. The results of the field experiment prove that RCFP-IC is an effective on-line monitoring system and is helpful in source apportionment and pollution episode monitoring.
Correlation study between suspended particulate matter and DOAS data

Continuous data of aerosol optical thickness monitored using differential optical absorption spectroscopy (DOAS) are correlated with the concentration of ground-measured suspended particulate matter (SPM). A high correlation is found between the DOAS and the ground SPM data, making it possible to calculate the mass extinction efficiency of the aerosols in the atmosphere. It is found that the value of mean mass extinction efficiency (MEE) varies over a range of 2.6–13.7 m2 g?1, with smaller and larger values occurring for size distributions dominated by coarse and fine particles, respectively.
Characteristics of carbonaceous particles in Beijing during winter and summer 2003

Campaigns were conducted to measure Organic Carbon (OC) and Elemental Carbon (EC) in PM2.5 during winter and summer 2003 in Beijing. Modest differences of PM2.5 and PM10 mean concentrations were observed between the winter and summer campaigns. The mean PM2.5/PM10 ratio in both seasons was around 60%, indicating PM2.5 contributed significantly to PM10. The mean concentrations of OC and EC in PM2.5 were 11.2±7.5 and 6.0±5.0 μg m?3 for the winter campaign, and 9.4±2.1 and 4.3±3.0 μg m?3 for the summer campaign, respectively. Diurnal concentrations of OC and EC in PM2.5 were found high at night and low during the daytime in winter, and characterized by an obvious minimum in the summer afternoon. The mean OC/EC ratio was 1.87±0.09 for winter and 2.39±0.19 for summer. The higher OC/EC ratio in summer indicates some formation of Secondary Organic Carbon (SOC). The estimated SOC was 2.8 μg m?3 for winter and 4.2 μg m?3 for summer.
Studies on the Structure and Properties of Multiphase Al2O3 Abrasion-resistant Ceramics

The Al2O3 abrasion-resistant ceramics is successfully prepared by using waste aluminum sludge as the main raw material with the addition of a little clay, talc and barium carbonate. The crystal structure and microstructure of ceramic are characterized by means of XRD, SEM, etc., and the physical and mechanical properties are also tested. The results show that besides the phase of corundum, a little mullite, Mg-Al spinel and hyalophane phases also exist in the product. These phases are produced via reaction in-situ, which can inhibit the overgrowth of Al2O3 grain in grain boundary, and improve the integral property of the material.
Synthesis and Crystal Structure of an Azide Bridged Binuclear Zinc（Ⅱ） Dimer Containing Taurine Schiff  Base [Zn2（CaH9N2O3S）2· （N3）2· （H2O）2]2·2H2O

The title complex [Zn2L2（N3）2（H2O）2]·2H2O （L = N-（2-pyridylmethylidene） taurine） has been synthesized in a methanol-water solution. The crystal belongs to monoclinic, space group P2 1/C with a = 15.8064（10）, b = 10.5015（5）, c = 17.3193（11） ,A, β= 111.314（2）°, V = 2678.2 （3） ,A ^3 C16H26N10O10S2Zn2, Mr = 713.33, Z = 4, DC = 1.769 g/cm^3, μ = 2.017 mm^-1 and F（000） = 1456. The asymmetric unit consists of two half-molecules of the complex and two water molecules. Four N and two O atoms form the coordination environment of each Zn atom, resulting in a distorted octahedral configuration. The two halves of each independent dimer are related by a crystallographic inversion centre, which lies at the centre of the ring formed by two Zn atoms and the coordinating atoms of the two azide anions. The average separation of Zn（Ⅱ）...Zn（Ⅱ） is 3.322 A. The molecules are linked by O-H...O hydrogen bonds, generating an interesting zigzag infinite chain structure in the ac plane.
Synthesis and Crystal Structure  of 1-H-Pyrrole-2-carboxylic Acid [2-（Naphthalen-l-ylamino）-ethyl]-amide

1-H-Pyrrole-2-carboxylic acid [2-（naphthalen-1-ylamino）-ethyl]-amide has been synthesized and characterized. Its crystal is of monoclinic, space group P2 1/n with a = 5.930（6）, b = 12.144（13）, c = 20.10（2） , A, β = 95.709（17）°, V= 1441（3） ,A, Z= 4, C17H17N3O, Mr= 279.34, Dc= 1.288 g/cm^3, F（000） = 592, μ（MoKa） = 0.083 mm^-1, S = 1.019, R = 0.0473 and wR = 0.1181 for 1713 observed reflections with I 〉 2 σ（I）. X-ray diffraction reveals that two molecules of the title compound form a dimer through a pair of N-H…O hydrogen bonds.
粉防己碱对大鼠脑缺血/再灌注后IL-1β、TNF-α和IL-8表达的影响

目的:探讨粉防己碱对大鼠脑缺血/再灌注后炎性因子表达的影响.方法:72只SD大鼠随机分为假手术组(Sham),缺血/再灌注组(I/R),粉防己碱处理组(Tet).采用线栓法复制大鼠右侧大脑中动脉脑缺血/再灌注模型,用放射免疫方法测定脑组织中IL-1β、TNF-α和IL-8的含量.结果:脑缺血/再灌注早期脑组织中IL-1β、TNF-α表达迅速升高,IL-8表达稍滞后;Tet组中脑组织中此三个因子的表达显著降低(P＜0.05或P＜0.01).结论:粉防己碱抑制大鼠脑组织缺血/再灌注早期炎性细胞因子的表达,减轻炎性反应,对缺血/再灌注脑组织具有保护作用.
热烈祝贺查良锭教授90寿辰

2006年10月18日中国营养学会临床营养分会在北京为查良锭教授90寿辰举行了庆祝会.到会祝贺的有天津营养学会代表,京津地区临床营养的前辈和部分医院的营养科主任、协和医院的营养师,还有查教授的学生和慕名而来的年轻营养师们.上海、成都、广州等地的临床营养工作者也分别打来电话表示祝贺.老一代营养师们深情地回忆了在临床营养被错误定为是资产阶级生活方式的非常年代, 她们还经常和查教授聚会,讨论如何规范临床营养治疗,期盼能有一套临床营养治疗指南.
空心加压螺钉多组血管束植入治疗青壮年股骨颈骨折疗效分析

随着交通、建筑业的发展,既往较为少见的青壮年股骨颈骨折近年来逐渐增多,且多由高能量损伤严重破坏股骨头血运,股骨头坏死率高。我科自1998年3月至2003年6月,采用空心加压螺钉内固定加多组血管束植入治疗青壮年股骨颈骨折25例,其中23例得到长期随访。现报告如下。
支气管异物误诊为中心型肺癌2例报告

病例1 男,35岁,无明显诱因出现咳嗽,少痰2周,无咯血、胸痛和呼吸困难等不适,无畏寒发热.体检:T 36.6℃,R 23次/min,Bp 120 mmHg/80 mmHg(1 mmHg=0.133 kPa),P 78次/min.呼吸运动对称,肋间隙无增宽,双侧语颤对称,两肺叩诊音清.两肺呼吸音清,未闻及干湿啰音.化验:WBC 6.5 × 109/L,N 75%.
Intrathecal administration of Ca_v3.2 and Ca_v3.3 antisense oligonucleotide reverses tactile allodynia and thermal hyperalgesia in rats following chronic compression of dorsal root of ganglion

The present study aimed to elucidate the role of T-subtype calcium channels (Ca_v3.1, Ca_v3.2, and Ca_v3.3) in the pathogenesis of neuropathic pain at spinal level. Methods: The chronic compression of the dorsal root ganglion (CCD) rat model was adopted. The antisense oligonucleotide of Cav3.1, Ca_v3.2, and Ca_v3.3 or normal saline (NS) were intrathecally administered twice per day from the first day to the fourth day after operation. Paw mechanical withdrawal threshold and paw thermal withdrawal latency were measured to evaluate the tactile allodynia and thermal hyperalgesia, respectively. Results: CCD rats developed reliable tactile allodynia and thermal hyperalgesia after operation. Intrathecal administration of antisense oligonucleotide of Ca_v3.2 and Ca_v3.3 significantly relieved tactile allodynia and thermal hyperalgesia in CCD rats, but not Ca_v3.1. Conclusion: Ca_v3.2 and Ca_v3.3 subtype calcium channels in the spinal cord may play an important role in the pathogenesis of neuropathic pain, which may contribute to the management of the neuropathic pain.
Green tea polyphenol epigallocatechin-3-gallate suppresses rat hepatic stellate cell invasion by inhibition of MMP-2 expression and its activation

Aim: Epigallocatechin-3-gallate (EGCG) is the major component of green tea polyphenols, whose wide range of biological properties includes anti-fibrogenic activity. Matrix metalloproteinases (MMP) that participate in extracellular matrix degradation are involved in the development of hepatic fibrosis. The present study investigates whether EGCG inhibits activation of the major gelatinase matrix metalloproteinase-2 (MMP-2) in rat hepatic stellate cells (HSC). Methods: The expression of MMP-2, tissue inhibitors of metalloproteinases-2 (TIMP-2), and membrane-type 1-MMP (MT1-MMP) was assessed by RT-PCR and Western blot analyses. MMP-2 activity was evaluated by zymography and MT1-MMP activity was assessed by an enzymatic assay. HSC migration was measured by a wound healing assay and cell invasion was performed using Transwell cell culture chambers. Results: The expression of MMP-2 mRNA and protein in HSC was substantially reduced by EGCG treatment. EGCG treatment also reduced concanavalin A (ConA)-induced activation of secreted MMP-2 and reduced MT1-MMP activity in a dose-dependent manner. In addition, EGCG inhibited either HSC migration or invasion. Conclusion: The abilities of EGCG to suppress MMP-2 activation and HSC invasiveness suggest that EGCG may be useful in the treatment and prevention of hepatic fibrosis.
免疫脱敏治疗过敏性鼻炎的观察与护理

目的 总结免疫脱敏治疗过敏性鼻炎的临床护理体会.方法 对124例过敏性鼻炎患者采用免疫脱敏治疗并强化心理护理与健康指导,观察患者临床症状改善情况.结果 通过半年的临床观察,患者过敏性鼻炎症状明显好转或消失,生活质量显著提高,总有效66例(54.8%),总治疗效果指数58.1%.结论 采用免疫脱敏治疗、强化对患者的护理与健康指导,能明显改善过敏性鼻炎患者的症状并长期有效控制过敏性鼻炎发作.
丙泊酚在电子结肠镜检查中的应用

目的 探讨丙泊酚静脉麻醉用于电子结肠镜检查的镇静作用,评价其可行性、效果和安全性.方法 将1 042例准备行电子结肠镜检查的患者随机分成两组;A组(麻醉组)静脉注射丙泊酚后行电子结肠镜检查,B组(对照组)按常规进行电子结肠镜检查,观察两组患者检查前和给予丙泊酚后的1,5,10 mim患者收缩压(SBP)、舒张压(DBP)、平均动脉压(MBP)、心率(HR)、血氧饱和度(SpO_2)等生理指标的变化及出现的副作用和入镜时间.结果 麻醉组使用丙泊酚后1,5 min时SBP,DBP,MBP,HR,SpO_2与对照组比较均明显降低(P＜0.05),但无需特殊处理,均未引发严重副作用,麻醉组的入镜时间和检查反应明显优于对照组(P＜0.05).结论 丙泊酚麻醉下行电子结肠镜检查是安全、有效的,提高了患者的接受度,值得临床推广应用.
头部不同体位对脑血流的影响

现行幕上开颅手术中头位的摆放是在平卧头中位的基础上左转或右转、前屈或后仰头部以满足手术操作的需要,这些头位的摆放主要是从有利于手术操作的角度考虑,而忽视了这些头位对患者可能造成的生理扰乱.由于手术是持续的过程,头位摆放在其中某种位置后就是一种持续状态,患者处于全麻状态中,即使有不适也无法主诉,因此,从脑血流动力学的角度进行探讨,指导幕上开颅手术中头位的科学摆放,并试图解释部分术中脑肿胀和术后延迟恢复现象.
制作小鼠骨骼标本的新方法

目的 改进小鼠骨骼标本的制作方法.方法 利用蚂蚁啃食肌肉和软组织,并结合传统方法制作小鼠骨架.结果 所制作的小鼠骨架完整洁净,没有骨质损伤.结论 利用蚂蚁制作骨架简便快速,优于传统方法,值得推广应用.
同一患者痰培养标本中检出2株不同铜绿假单胞菌

铜绿假单胞菌(Pseudomonas aeruginosa)菌体一端有单鞭毛,属革兰阴性杆菌,是医院感染常见的条件致病菌,可引起机体多系统、多脏器或多部位等严重感染.由于该菌繁殖能力强,生长要求低,极易形成生物膜,对许多常用抗菌药物有天然耐药性.铜绿假单胞菌感染是目前各种感染中最广泛、最严重的问题之一.
同侧腮腺混合性Warthin瘤与唾腺导管癌1例

患者男性，76岁，因左耳后肿块50年、右口角歪斜1年、左颈肿块7个月入院。体检发现左肋腺内肿块，质硬，固定，直径4cm，并发现左颈肿大淋巴结1枚，直径2cm，CT示左肋腺团块影，似结节融合，密度高，中心见低密度影，茎突前间隙见囊性低密度影，边界尚清，术前穿刺诊断：左腮腺腺癌，后行左腮腺癌联合根治术。
Study on the trace species in the stratosphere and their impact on climate

The trace gases (O_3, HCl, CH_4, H_2O, NO, NO_2) in the stratosphere play an important role, not only in the photochemical processes in which the ozone layer destroyed, but also in the radiative processes. In this paper, we review the works on the distribution and variation of the trace gases in the stratosphere and their impact on climate, which have been carried out at the University of Science and Technology of China in the recent 20 years. The Halogen Occultation Experiment (HALOE) data were used to analyse the distribution and variation of the mixing ratio of these trace gases and the temperature trends in the stratosphere in the most recent decade. And the reanalyzed National Centers of Environmental Prediction (NCEP)/NCAR data were also used to give the temperature trends and compared with the results from HALOE data. Numerical simulations were also carried out to study the impact of ozone depletion on the global climate. In this review, the distributions of the trace gases, especially those over the Qinghai-Xizang Plateau, are discussed, and the variations and trends for the trace gases in various levels in the stratosphere have been given for the most recent decade. The temperature variation and the cooling trend obtained from HALOE data in the middle and lower stratosphere for the last 13 years are significant, which agree well with the results from NCEP/NCAR data. While the temperature trend in the upper stratosphere in this period do not seem to have much cooling. The numerical simulations show that either the Antarctic ozone hole or the ozone valley over Qinghai-Xizang Plateau affect not only the temperature and circulation in the stratosphere, but also the temperature, pressure and wind fields in the troposphere, then lead to the global climate change.
The summer monsoon onset over the tropical eastern Indian Ocean: The earliest onset process of the Asian summer monsoon

The onset process of the tropical eastern Indian Ocean (TEIO) summer monsoon (TEIOSM) and its relationship with the cross-equatorial flows are investigated via climatological analysis. Climatologically, results indicate that the earliest onset process of the Asian summer monsoon occurs over the TEIO at pentad 22 (April 15–20). Unlike the abrupt onset of the South China Sea (SCS) summer monsoon, the TEIOSM onset process displays a stepwise advance. Moreover, a close relationship between the TEIOSM development and the northward push of the cross-equatorial flows over 80°–90°E is revealed. A difference vorticity center, together with the counterpart over the southern Indian Ocean, constitutes a pair of difference cyclonic vortices, which strengthens the southwesterly wind over the TEIO and the northerly wind to the west of the Indian Peninsula from the end of March to late May. Therefore, the occurrence of the southwesterly wind over the TEIO is earlier than its counterpart over the tropical western Indian Ocean, and the cross-equatorial flows emerge firstly over the TEIO rather than over the Somali area. The former increases in intensity during its northward propagation, which provides a precondition for the TEIOSM onset and its northward advance.
Atmospheric circulation characteristics associated with the onset of Asian summer monsoon

The onset of the Asian summer monsoon has been a focus in the monsoon study for many years. In this paper, we study the variability and predictability of the Asian summer monsoon onset and demonstrate that this onset is associated with specific atmospheric circulation characteristics. The outbreak of the Asian summer monsoon is found to occur first over the southwestern part of the South China Sea (SCS) and the Malay Peninsula region, and the monsoon onset is closely related to intra-seasonal oscillations in the lower atmosphere. These intra-seasonal oscillations consist of two low-frequency vortex pairs, one located to the east of the Philippines and the other over the tropical eastern Indian Ocean. Prior to the Asian summer monsoon onset, a strong low-frequency westerly emerges over the equatorial Indian Ocean and the low-frequency vortex pair develops symmetrically along the equator. The formation and evolution of these low-frequency vortices are important and serve as a good indicator for the Asian summer monsoon onset. The relationship between the northward jumps of the westerly jet over East Asia and the Asian summer monsoon onset over SCS is investigated. It is shown that the northward jump of the westerly jet occurs twice during the transition from winter to summer and these jumps are closely related to the summer monsoon development. The first northward jump (from 25°–28°N to around 30°N) occurs on 8 May on average, about 7 days ahead of the summer monsoon onset over the SCS. It is found that the reverse of meridional temperature gradient in the upper-middle troposphere (500–200 hPa) and the enhancement and northward movement of the subtropical jet in the Southern Hemispheric subtropics are responsible for the first northward jump of the westerly jet.
The Casimir effect of Reissner-Nordstrom black hole

The stress tensor of a massless scalar field satisfying a mixed boundary condition in a (1+1)-dimensional Reissner–Nordstrom black hole background is calculated by using Wald's axiom. We find that Dirichlet stress tensor and Neumann stress tensor can be deduced by changing the coefficients of the stress tensor calculated under a mixed boundary condition. The stress tensors satisfying Dirichlet and Neumann boundary conditions are discussed. In addition, we also find that the stress tensor in conformal flat spacetime background differs from that in flat spacetime only by a constant.
影响日用陶瓷造型异形美因素探讨

现代科技对陶瓷设计产生了积极作用.日用陶瓷造型的异形美体现了设计以人为本的原则,给人以情感上的寄托和精神上的享受.通过人的设计活动,使陶瓷具有了物质与精神的双重属性,得以构成陶瓷美的本质所在.通过对日用陶瓷产品的内在因素与外在因素分析,探求日用陶瓷设计活动中异形美对人们生活方式的改变以及属性.
A new representation and probabilistic teleportation of an arbitrary and unknown N-particle state

A new representation of an arbitrary and unknown N-particle state is presented at first. As an application, a scheme for teleporting an arbitrary and unknown N-particle state is proposed when N pairs of two-particle non-maximally entangled states are utilized as quantum channels. After Alice (sender) makes Bell-state measurement on her particles, Bob (recipient) introduces an auxiliary particle and carries out appropriate unitary transformation on his particle and the auxiliary particle depending on classical information from Alice. Then, von Neumann measurement that confirms whether the teleportation succeeds or not is performed by Bob on the auxiliary particle. In order to complete the teleportation, another N-1 times operations need to be performed which are similar to the above ones. It can be successfully realized with a certain probability which is determined by the product of the smaller coefficients of non-maximally entangled pairs. All possible unitary transformations are given in detail.
泰索帝放射增敏作用的动物实验研究

研究表明泰索帝以浓度依赖性的、可逆性的与细胞内微管上的β-亚基N端第31个氨基酸直接结合,从而将细胞周期阻断在G_2+M期,提示它可能具有潜在的放射增敏效应.为此,通过动物肿瘤模型来观察泰索帝对C57BL/6小鼠Lewis肺癌放射敏感性的影响.
两系杂交水稻黔两优58制种技术

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随着CR尤其是近几年DR的迅速发展以及PACS的普及推广应用,普通X线摄影数字化前进了一大步,国内在一些大中型医院的放射科已基本实现了全数字化(我院放射科在2年前就实现了全数字化),也逐步向无胶片化过度,数字图像将全部采用软阅读方式.由于CR和DR的每幅数字图像的数据量很大(一般在5～30 M)且分辨率高(一般为2 K×2 K～4 K×4 K,有高达7 K×7 K的),分辨率高于数字X线心血管成像系统的数字图像,远高于CT和MR的数字图像,所以它的软阅读显示器的配置不同于数字X线心血管成像系统和CT与MR系统,合理配置至关重要.本文就CR和DR系统的数字图像软阅读如何配置显示器,谈一谈我们的粗浅认识.
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在小修作业过程中,采用单个油管吊卡与手动井口卡盘相互配套的施工工艺起下油管,解决了传统的双吊卡作业方法劳动强度大、生产效率低、安全性差等问题;并且在油管吊卡上使用安全吊卡销,进一步解决了小修作业现场的安全性问题.通过100余井次的现场应用,表明采用单吊卡小修作业技术具有减轻操作者劳动强度、提高作业效率、减少事故发生几率等特点,该技术有一定的推广价值.
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