System Redesign of Service Station’s Performance Management In Passenger Service Office In XiaMen Airlines

绩效管理是管理的重要手段和方法，是人力资源管理的核心。人力资源管理核心职能便是对员工绩效进行有效地考核控制与改进。只有建立和完善员工绩效管理体系，才能达到改善员工个人业绩，提升企业核心竞争力，完成企业的战略目标。 本文结合厦门航空有限公司服务岗位绩效考核的实际情况，对考核的现状和存在的问题进行认真、细致的分析，建立以关键绩效指标为基础的主基二元法为的绩效考核方法。通过关键绩效指标建立员工考核的主要绩效，将企业目标与个人工作目标紧密结合，基础绩效则将服务岗位中很难具体量化的工作态度、行为等主观性指标进行量化、标准化、适度细化。并在此基础上构建出一套包含绩效计划、绩效实施与管理、绩效考核、绩效反...Performance management is an important mean and method of management, and it is the core of human resources management. The Core function of Human Resources Management is to assess, control and improve the performance of staff. The establishment and improvement of staff performance management system can not only improve personal performance, but also enhance the core competitiveness of enterprises...学位：工商管理硕士院系专业：管理学院工商管理教育中心（MBA中心）_工商管理硕士(MBA)学号：1792006115158

H5N1禽流感病毒血凝素抗原快速检测试剂对不同现场标本的检测比较

利用H5亚型禽流感病毒血凝素抗原快速检测试剂“H5-HA(Ag)Dot-ELISA(H5-Dot)”对来自陆禽、水禽的484份气管拭子、泄殖腔拭子和粪便拭子标本进行检测,结果:①不同采集方式的H5N1阳性标本的检出率高低有别,气管拭子的检出率最高,泄殖腔拭子次之,粪便拭子最低(P<0·05),因此建议现场采样时应尽可能采集气管拭子标本;②陆禽标本检出率显著高于水禽标本(P<0·05),对病毒培养阳性的陆禽气管拭子检出率达80%(95%CI:70·6%~87·8%),对水禽气管拭子标本的检出率为38%(95%CI:26·9%~49·4%),可能与标本中病毒滴度高低有关;③有症状与无症状陆禽标本的检出率无显著差异。另外,H5-Dot试剂对333份非H5病毒气管拭子标本的特异性为99·4%(95%CI:97·9%~99·9%)。这些结果表明,H5-Dot是一种较为可靠的H5亚型禽流感病毒早期快速检测方法,在缺乏仪器设施和高素质专业技术人员的H5N1禽流感病毒防控第一线具有重要推广价值

一种新型H5N1禽流感病毒血凝素抗原快速检测试剂的建立

利用5株广谱特异性抗H5亚型血凝素单克隆抗体和酶联免疫渗滤技术成功地建立了一种适于现场检测H5亚型禽流感病毒血凝素蛋白的抗原快速检测试剂H5-HA(Ag)Dot-ELISA。该试剂对41株代表当前亚洲地区流行的各种遗传变异亚系H5N1禽流感病毒检测均为阳性,对多数毒株的分析灵敏度优于0.1个血凝滴度(HA titer),其中部分优于0.01个血凝滴度;比较该试剂与早期开发的同类ELISA试剂,发现前者对后者未能检出的H5N1新变异株检测均为阳性;利用该试剂和商品化Directigen Flu A(BD)试剂检测两株H5N1病毒株,提示前者灵敏度高于后者;该试剂对一株H5N1病毒的检测灵敏度与标准RT-PCR相当;该试剂对24株非H5亚型病毒检测均为阴性,显示出良好特异性。以上结果提示,此研究建立的H5N1病毒抗原快速检测试剂在H5禽流感现场检测上具有较好的应用前景

Selective dynamical imaging of interferometric data

Recent developments in very long baseline interferometry (VLBI) have made it possible for the Event Horizon Telescope (EHT) to resolve the innermost accretion flows of the largest supermassive black holes on the sky. The sparse nature of the EHT’s (u, v)-coverage presents a challenge when attempting to resolve highly time-variable sources. We demonstrate that the changing (u, v)-coverage of the EHT can contain regions of time over the course of a single observation that facilitate dynamical imaging. These optimal time regions typically have projected baseline distributions that are approximately angularly isotropic and radially homogeneous. We derive a metric of coverage quality based on baseline isotropy and density that is capable of ranking array configurations by their ability to produce accurate dynamical reconstructions. We compare this metric to existing metrics in the literature and investigate their utility by performing dynamical reconstructions on synthetic data from simulated EHT observations of sources with simple orbital variability. We then use these results to make recommendations for imaging the 2017 EHT Sgr A* data sethttp://iopscience.iop.org/2041-8205Physic

First Sagittarius A* Event Horizon Telescope Results. VIII. Physical Interpretation of the Polarized Ring

In a companion paper, we present the first spatially resolved polarized image of Sagittarius A* on event horizon scales, captured using the Event Horizon Telescope, a global very long baseline interferometric array operating at a wavelength of 1.3 mm. Here we interpret this image using both simple analytic models and numerical general relativistic magnetohydrodynamic (GRMHD) simulations. The large spatially resolved linear polarization fraction (24%–28%, peaking at ∼40%) is the most stringent constraint on parameter space, disfavoring models that are too Faraday depolarized. Similar to our studies of M87*, polarimetric constraints reinforce a preference for GRMHD models with dynamically important magnetic fields. Although the spiral morphology of the polarization pattern is known to constrain the spin and inclination angle, the time-variable rotation measure (RM) of Sgr A* (equivalent to ≈46° ± 12° rotation at 228 GHz) limits its present utility as a constraint. If we attribute the RM to internal Faraday rotation, then the motion of accreting material is inferred to be counterclockwise, contrary to inferences based on historical polarized flares, and no model satisfies all polarimetric and total intensity constraints. On the other hand, if we attribute the mean RM to an external Faraday screen, then the motion of accreting material is inferred to be clockwise, and one model passes all applied total intensity and polarimetric constraints: a model with strong magnetic fields, a spin parameter of 0.94, and an inclination of 150°. We discuss how future 345 GHz and dynamical imaging will mitigate our present uncertainties and provide additional constraints on the black hole and its accretion flow

First Sagittarius A* Event Horizon Telescope results. II. EHT and multiwavelength observations, data processing, and calibration

We present Event Horizon Telescope (EHT) 1.3 mm measurements of the radio source located at the position of the supermassive black hole Sagittarius A* (Sgr A*), collected during the 2017 April 5–11 campaign. The observations were carried out with eight facilities at six locations across the globe. Novel calibration methods are employed to account for Sgr A*'s flux variability. The majority of the 1.3 mm emission arises from horizon scales, where intrinsic structural source variability is detected on timescales of minutes to hours. The effects of interstellar scattering on the image and its variability are found to be subdominant to intrinsic source structure. The calibrated visibility amplitudes, particularly the locations of the visibility minima, are broadly consistent with a blurred ring with a diameter of ∼50 μas, as determined in later works in this series. Contemporaneous multiwavelength monitoring of Sgr A* was performed at 22, 43, and 86 GHz and at near-infrared and X-ray wavelengths. Several X-ray flares from Sgr A* are detected by Chandra, one at low significance jointly with Swift on 2017 April 7 and the other at higher significance jointly with NuSTAR on 2017 April 11. The brighter April 11 flare is not observed simultaneously by the EHT but is followed by a significant increase in millimeter flux variability immediately after the X-ray outburst, indicating a likely connection in the emission physics near the event horizon. We compare Sgr A*'s broadband flux during the EHT campaign to its historical spectral energy distribution and find that both the quiescent emission and flare emission are consistent with its long-term behavior.http://iopscience.iop.org/2041-8205Physic

智能化金融科技创新监管工具：理念、平台框架和展望

针对金融科技监管面临的复杂严峻挑战以及现有“监管沙箱”高度依赖人工操作的局面，指出中国“金融科技创新监管工具”的重要特色和发展趋势在于“智能化”。提出一套系统的“智能化金融科技创新监管工具”平台框架，即利用科技手段实现对金融科技创新应用的全生命周期监管。详细阐述了智能化金融科技创新监管工具的组成要素，包括区块链底层、舆情监测平台、基于知识图谱的可解释性人工智能等，并对其中涉及的关键技术进行说明。介绍了该创新监管工具工程开发时采用的新型迭代方法论——“螺旋形”开发模式和需求层次驱动的迭代设计。最后，对智能化创新监管工具提出若干思考与展望，指出该监管工具将创造一套监管科技基础设施，服务于监管部门和广大金融机构

在锗衬底上生长无反相畴砷化镓薄膜的分子束外延方法

本发明公开了一种在锗衬底上生长无反相畴砷化镓薄膜的分子束外延方法，包括如下步骤:步骤1:选取(100)面偏向方向6°或9°的Ge衬底;步骤2:对Ge衬底进行除气脱氧及退火处理;步骤3:将进行退火处理后的Ge衬底在As蒸气环境下暴露一定时间，然后在温度300至650℃范围内在该Ge衬底上生长无反相畴的GaAs薄膜。测试结果表明，生长出的GaAs薄膜表面粗糙度仅为0.718nm，即成功地抑制了反相畴的产生，其晶体质量优于目前世界的最好结果