Lance-Adams综合征1例

Lance-Adams综合征，又称为继发于低氧性脑病的意向性或动作性肌阵挛综合征。国内关于治疗Lance-Adams综合征的报道相对较少，我院通过采用地西泮、丙戊酸等抗癫痫药物对1例Lance-Adams综合征患者进行治疗，并观察其临床表现及脑电图情况，以探究Lance-Adams综合征的临床发病特点及治疗方法，提高对Lance-Adams综合征的认识，便以早诊断、及时救治。经过一系列的治疗之后，患者的临床症状得到有效控制，脑电图结果由起初以3~5 Hz的高频兹波、啄波为主，伴有中、高幅尖、棘波以及棘慢综合波逐渐转变为以8~10 Hz有节律的α波为主，尖、棘波以及棘慢综合波消失。本病例的发病过程及体征情况与相关文献基本相符，经过丙戊酸、地西泮等抗癫痫药物治疗后，病情得到有效缓解，生存质量明显提高，说明丙戊酸、地西泮等抗癫痫药物可作为治疗Lance-Adams综合征的一个选择。

Lance-Adams综合征二例报道并文献复习

本文报道了2例缺氧后肌阵挛发作病例,通过复习文献,对其病因学、临床表现、诊断要点与治疗情况进行分析,发现其有下述临床特点:(1)心肺复苏、窒息是本病常见的原因;(2)肌阵挛易由外界刺激所诱发,如听觉、触觉、视觉刺激诱发或加重;(3)脑电图有或无痫性电活动,脑部影像学检查可无特异性病变;(4)治疗首选丙戊酸、氯硝西泮等抗癫痫药;(5)总体预后较好,可能遗留神经功能缺损。

基于Lance距离和信度熵的冲突证据融合方法

针对D-S(Dempster-Shafer)证据理论中证据融合可能存在冲突的问题,通过考虑证据之间的关系及其本身的特性,提出一种基于Lance距离和信度熵的冲突证据融合方法。首先,利用Lance距离来度量证据之间的差异和冲突程度,并通过矩阵形式表示证据的可信度,再通过计算信度熵来度量证据的信息量,并以此表示证据的不确定度。其次,综合考虑证据的可信度和不确定度来衡量证据最终融合的折扣系数,并通过折扣系数修正原始证据。最后,采用Dempster合成规则进行证据融合得到最终结果。算例分析结果表明,所提方法较其他方法而言,收敛速度更快,融合结果更准确、可靠。

Study on Rapid Propagation Medium of Atractylodes Lances by Orthogonal Design

[Objective] The aim was to protect wild resource of Atractylodes lances and to provide technical guidance for industrialization of Atractylodes lances. [Method] The test-tube seedlings were produced from seeds of Atractylodis Lances. At the same time, the effects of 6-BA, NAA and KT on the proliferation of aseptic seedling was studied through the orthogonal test. Effect of NAA concentration on the rooting of aseptic seedling was studied through nine types of light substrate groups, which consist of peat soil, fine sand and cotton seed hull, and their effects on Atractylodes lances growth were studied on with orthogonal design. [Result] The culture medium suitable for the proliferation of the Atractylodes lances tube seedling was MS＋6-BA 1.0 mg/L＋NAA 0.4 mg/L＋KT 0,4 mg/L. And the medium suitable for rooting was 1/2MS＋NAA 0.5 mg/L. The optimal ratio of soil, riversand and cotton seed hull was 3：3：2. [Conclusion] The research selected optimum culture medium, rooting medium and ratio of substrate, which provided technical guidance for laboratorial preservation of germplasm resource of Atractylodes lances and industrialization of its seedling production.

LANCEL 绝对巴黎

香榭丽舍大道是位于法国协和广场和凯旋门之间,仅有100米左右的一条林荫大街,法语名字的确切意思是“极乐田园大街”。自1667年由宫廷庭院设计师安德烈·勒诺特雷命人修建成后,直到今日,始终是公认的巴黎中心大街“女王”,云集了银行、保险公司、航空公司和世界顶级时尚品牌专卖店等。LANCEL于2006年重建开张的旗舰店也位列其内。在这灯火辉煌的大街上漫步,就连最挑剔的人也会对香榭丽舍迷人的夜景啧啧赞叹。Lancel自今年起用的全新圆形标志成为了“香榭丽舍经典Cache-Cache”系列设计元素之一,牛皮制成的原型标志相连而成手袋,堪称巧夺天工。是LANCEL百余年魅力的全新演绎,更是这个奢华皮具世家新一季传奇的序章……

Jet Behavior and Metallurgical Performance of Innovated Double-Parameter Oxygen Lance in BOF

A double-parameter oxygen lance used in a 300 t converter was designed to improve the metallurgical performance. A small-scale measurement of the jet behavior was done using a computer controlled scanning system. The experimental data on the velocity distribution at the jet centerline, the contour map of the jet velocity, the deviation of the jet centerline, and the velocity distribution of the axial section were compiled. According to the results of the small-scale measurement, the double-parameter lance was also employed for a BOF experiment. The metallurgy inde- xes show that the metallurgical performance was highly promoted by use of the double-parameter lance.

Simulation of three-phase flow and lance height effect on the cavity shape

A three-dimensional computational fluid dynamics （CFD） model was developed to simulate a 150-t top-blown converter. The ef-fect of different lance heights on the cavity shape was investigated using the volume of fluid （VOF） method. Numerical simulation results can reflect the actual molten bath surface waves impinged by the supersonic oxygen jets. With increasing lance height, the cavity depth de-creases, and the cavity area, varying like a parabola, increases and then decreases. The cavity area maximizes at the lance height of 1.3 m. Under the three different lance heights simulated in this study, all of the largest impact velocities at the molten bath surface are between 50 m/s and 100 m/s.

Case Report:Lance-Adams syndrome:a report of two cases

Chronic post-hypoxic myoclonus, also known as Lance-Adams syndrome (LAS), is a rare complication of successful cardiopulmanry resuscitation often accompanied by action myoclonus and cerebellar ataxia. It is seen in patients who have un-dergone a cardiorespiratory arrest, regained consciousness afterwards, and then developed myoclonus days or weeks after the event. Worldwide, 122 cases have been reported in the literature so far, including 1 case of Chinese. Here we report 2 Chinese LAS patients with detailed neuroimagings. Cranial single photon emission computed tomography (SPECT) of patient 1, a 52-year-old woman, showed a mild hypoperfusion in her left temporal lobe, whereas patient 2, a 54-year-old woman, manifested a mild bilateral decrease of glucose metabolism in the frontal lobes and a mild to moderate decrease of the N-acetyl aspartate (NAA) peak in the bilateral hippocampi by cranial [18F]-fluorodeoxyglucose positron emission tomographic (PET) scan and cranial magnetic resonance spectroscopy (MRS), respectively. We also review the literature on the neuroimaging, pathogenesis, and treatment of LAS.

加权犹豫模糊集的Lance距离测度及其应用

在多属性群决策过程中,犹豫模糊元中不同隶属度所占权重直接影响最终的评价结果。因此,提出一种基于加权犹豫模糊集的Lance距离多属性群决策方法。利用加权犹豫模糊集的熵构造属性信息权重的确定模型,给出加权犹豫模糊集的Lance距离的TOPSIS方法以及生成算法。通过流感疫苗供货商的选择,验证了该方法是可行的和有效的。

Lance Design for Argon Bubbling in Molten Steel

Three lance designs for argon bubbling in molten steel are presented. Bottom bubbling is considered too. Geometries considered are straight-shaped, T-shaped, and disk-shaped. The bubbling behavior of these lances is analyzed using Computational Fluid Dynamics, so transient three dimensional, isothermal, two-phase, numerical simulations were carried out. Using the numerical results, the bubble distribution and the open eye area are analyzed for the considered lance geometries. The plume volume is calculated from the open eye area and the lance immersion depth using geometrical considerations. Among the three lance designs considered, disk-shaped lance has the bigger plume volume and the smaller mixing time. As the injection lance is deeper immersed, the power stirring is increased and the mixing time is decreased.

＂Big Sissy＂： The Queer Construction of Lance Loud

The continued popularity of reality television, and the release of the recent HBO film Cinema Verite--about the production of the first ＂reality show,＂ An American Family （1973） --has resulted in renewed interest in the series and tangentially its other distinction--its portrayal of the first openly gay character on prime time television. Lance, the oldest of the Loud family children, is on film both flamboyant and effusive, but at the same time-through judicious editing--an asexual creature with no romantic or sexual relationships. This paper considers Lance in the context of Gay representation in media of the 1970s, and then explores the struggle of the filmmakers--and the Loud family themselves--to control and contain the public perception of Lance. The often vague and allusive comments by Lance＇s parents and even Lance himself suggest a character that is at once channing, witty, and vibrantly alive, yet also pretentious and deceitful. The final argument is that these complicit efforts to avoid controversy actually engender it, turning Lance Loud into a figure of mystery and conjecture ... and the undisputed star of the series.

白兵の情怀 Storm trooper Mitsubishi Lancer EX

当耳边响起“Star Wars Main Title”的交响乐章时,心底的激情就像被按住管口的水管内的水瞬间得以释放。这种感觉,犹如与翼神初见时从双眼直抵内心的触动,抽象得难以用字符去描述与形容这台翼神所带来的力量。但可以明显感受到,车主对它倾注的大量心思与无比的喜爱。这种力量莫不成是原力的另一种形式？如果你有幸能在广州的街道上遇上它,或许你就会有属于你自己的答案了。

120 t转炉五孔氧枪喷头优化设计研究

针对国内某钢厂120 t转炉氧枪供氧强度低、吹炼时间长、化渣慢、寿命短等问题,对其五孔氧枪喷头倾角进行优化设计。基于数值模拟软件FLUENT,在冷态下(300 K)分析了喷头倾角对射流特性的影响,并在炼钢温度下(1873 K)进一步对比新旧氧枪喷头的射流特性。结果表明:在冷态下,随着喷头倾角增加,射流独立性改善;当喷头倾角11°时,有效冲击面积最大;当喷头倾角12°时,化渣面积最大;最佳操作枪位为40 D_(e),综合考虑最佳喷头倾角为12°。在炼钢温度下,与旧喷头相比,新喷头的超音速区域长度增加1.0 D_(e),冲击深度更大,有效冲击面积增大6.67%,化渣面积增大10.39%,喷头出口负压更小,使用寿命更长。

Simulation of Flow Field of Oxygen Lance Gas Jet Utilized for 50 t Converter

Based on the operating conditions of oxygen lance utilized for a 50 t converter in Tangsteel,gas jet flow fields of three types of oxygen lances were simulated by FLUENT software.The influence of lance configuration and lance level on penetrating area was studied through cold model experiment.The results showed that the gas flow velocities of four-hole,variable angle four-hole and five-hole oxygen lances declined rapidly with an increase in gas jet length within 1 m,1 m and 0.8 m,respectively.Besides,the multi gas streams sprayed from these three lances should be syncretized at 1.6 m,1.7 m and 1.4 m,respectively.At the highest lance level,the effective penetrating area of these three lances could be 0.255 m2,0.385 m2 and 0.0907 m2,respectively.It was suggested that the effective penetrating area of variable angle four-hole oxygen lance was the biggest,while that of five-hole oxygen lance was the least.The validity of numerical simulation results was proved through cold model experiment.The lance level was suggested to be controlled in the range of 1-1.6 m,1-1.7 m and 0.8-1.4 m for the four-hole,variable angle four-hole and five-hole oxygen lances,respectively.

Effect of acupressure on procedural pain before heel lancing in neonates

OBJECTIVE:To investigate the effect of acupressure applied to UB60 and K3 acupuncture points in order to relieve the procedural pain caused by heel lancing blood sampling process in the term newborns.METHODS:The data were collected by using the Information Form and the Neonatal Infant Pain Scale.Acupressure applied for 3 min before heel lancing blood sampling in the newborns in the experimental group(n=31).No intervention was applied to newborns in the control group(n=32).RESULTS:A significant difference was found between mean scores of the newborns in the control and acupressure group in favor of the acupressure group in terms of heart rate during and after the procedure,oxygen saturation before,during and after the procedure,duration of crying during and after the procedure(P<0.05).It was found that there was a significant difference between groups in terms of Neonatal Infant Pain Scale mean scores during(P=0.001)and after the procedure(P<0.05),and the difference was found to be in favor of the acupressure group.CONCLUSION:As a result,acupressure was found to be an effective method in relieving pain caused by heel lancing blood sampling in newborns.

Failure Mechanism and Material Requirements for Coal Lance in Blast Furnace

Pulverized coal injection（PCI） is a key technology in modern ironmaking by blast furnace（BF） and the life of injection lance has a great influence on PCI operation and on normal running of blast furnace.It is found that the main reasons for the failure of the lances are their outer surface oxidation and the inner surface erosion through monitoring some lances used in BF.The outer surface oxidation of the lances made of lCr18Ni9Ti is inevitable under high hot blast temperature condition through thermodynamics analysis.A mathematical model for calculating the temperature of common monocular coal lance had been developed according to the principles of mass and energy balance.Increasing temperature and flow velocity of the hot blast would cause a rise in the lance temperature.The influence of hot blast temperature is more obvious.The lance temperature would decline when compressed air flux increases.Conveying technology of dense phase pulverized coal is beneficial to extending lance’s life because decreasing solid-gas ratio would intensify erosion and burning loss.The anti-oxidation temperature of lance materials needs to be over 1000 ℃ for BF intensified smelting.In order to increase the resistance to oxidation of the coal lance’s outer surface,oxidation-resistant steel or Al coating stainless steel is the appropriate material for BF use.Employing the metal surface treatment technology to enhance the hardness of the coal lance’s internal surface could prolong the service life of coal lance

Effects of single lance configuration on coal combustion process in tuyere from viewpoint of coal plume

Pulverized coal utilization in the blast furnace is decided by the particle flow and combustion behaviors in the raceway.Under a specific operating condition,these behaviors are directly related to the lance configuration in the upstream tuyere zone.Focusing on single straight lance,six types of single lance configurations were designed by assembling four parameters in different ways.These four parameters are the lance diameter,lance insertion angle,and the horizontal and vertical distances from the lance tip to the tuyere tip.With different lance configuration schemes applied,the pulverized coal combustion process in the lance-blowpipe-tuyere zone was simulated.The simulation results regarding particle diffusion and combustion behaviors were characterized by three indicators from the viewpoint of a coal plume.They are the plume diffusion angle,diffusion uniformity,and the average plume temperature at the tuyere outlet.To promote coal utilization,the values of these indicators under different configurations were analyzed,yielding two optimal configurations.The first one is to reduce the lance length immersed in the blowpipe-tuyere by 100 mm.The other is to increase the horizontal distance from the lance tip to the tuyere outlet by 50 mm,and the insertion angle to 11° with the lance tip located at the tuyere centerline.The findings can enhance the understanding of the influence mechanism of lance con-figuration on the coal utilization and provide guidelines for the design of new lance configurations.

120 t转炉二次燃烧氧枪溅渣射流特性数值模拟

以某钢厂120 t转炉为研究对象,建立二次燃烧氧枪枪头三维数学模型,采用数值模拟计算的方法对单流道二次燃烧氧枪溅渣过程的氮气射流特性进行研究,考察了不同的副孔直径、副孔倾角和副孔高度对氮气射流的影响规律。研究表明:随着副孔直径的增加,主孔和副孔的射流核心段轴向长度均逐渐增大,射流的径向宽度亦逐渐增大,且溅渣枪位下的主孔射流速度先增大后减小;随着副孔倾角的增加,主孔射流核心段轴向长度逐渐减少,溅渣枪位下射流面积逐渐增大,30°为溅渣合理的的副孔倾角;随着副孔高度的增加,主孔射流核心段轴向长度呈先增大后减小的趋势,且溅渣枪位下,75 mm的副孔高度有最大的主孔射流速度,其溅渣效果最佳。

Effect of a self-rotating oxygen lance system on mass transfer between slag and molten steel

To improve the efficiency of the steelmaking process,a system of self-rotating lance was designed,and corresponding cold simulation mechanism was developed.The influence of the self-rotating lance on the mass transfer rate between slag and molten steel was investigated by comparing this novel system with the traditional oxygen lance.The results show that the self-rotating lance can stably rotate with a gas jet as the power source.The mass transfer rate increases with an increase in the top and bottom blow flow rates and with a decline in the lance position.Approximately 13.7% of the top blow flow rate is converted to stirring energy,which is approximately twice that of the traditional oxygen lance,and the mass transfer rate can increase by over 30%.Furthermore,the impact energy can be concentrated at different depths of the molten bath by adjusting the rotational speed.With the same energy density,the mass transfer rate produced by the self-rotating lance is higher;however,the influence of the energy density on the mass transfer rate is low when the rotational speed is 30-50 r/min.

Lancme 玫瑰花香七十五年

法国美容护肤品牌Lanc(?)me始创于1935年,今年已是品牌创办75周年。Lanc(?)me籍此举行了大型午宴和颁奖典礼,并表扬城中7位具杰出成就的美丽新女性。这个以法式优雅为主题的盛会,场地以Lanc(?)me创办人Armand Petitjean最爱的玫瑰布置,工作人员向每位宾客亲切地说声"bonjour madame"。