Improvement of X Compensation System

薪酬不仅是人力资源管理的核心命题，也是企业可持续发展和规范化经营的首要问题。目前房地产行业已停止高速增长，进入洗牌阶段，通过建立规范化的企业制度，向规范化、制度化转变是既定的发展方向。而市场经济体制下企业的核心要求是最大限度地调动员工工作的积极性，提升自身竞争力，提高市场生存能力，争取实现效益最大化。因此，尽快建立和完善薪酬管理体系，更好发挥薪酬的激励作用，对企业有至关重要的作用。 本文选取经济发达地区民营企业X房地产公司作为研究对象，通过研究和分析X公司现行薪酬制度和薪酬管理体系，实施X公司薪酬体系的构建和改善，对整个房地产行业的转型升级具有深远的意义。基于此，本文主要从以下三个方面进行论...Compensation is not only the core proposition of human resource management but also the priority issue of sustainable development and standardized management of an enterprise. At present, the real estate industry has stopped rapid growing and is undergoing the restructuring period. In such circumstance, each corporate should remain firmly to be normalized and institutionalized by establishing stan...学位：工商管理硕士院系专业：管理学院_工商管理硕士(高级管理人员工商管理硕士)学号：X201415627

超精密磨床多信号监测系统的设计与实现

针对反映磨床运行状态的各种特征信号,以NI-PXI高性能测试平台为硬件核心,在LabVIEW编程环境中进行软件开发,完成了一套对磨床重要部件的振动、温度、声发射信号进行实时采集、存储、分析的监测系统。阐述了监测系统的功能和整体结构,以及系统的具体实现方法。系统利用硬件端不同模块实现不同信号的准确采集,在软件设计中加入数据的存储和分析。同时,基于监测系统中数据结构复杂、种类繁多和数据庞大,将数据库技术运用于系统软件中,从而实现对监测系统中数据的有效管理。对监测软件进行测试,验证了软件相关功能的可行性。国家科技重大专项(904专项Ⅱ期):大口径光学元件超精密磨削技术与装备研究(2017ZX04022001-207 904-2);蓝宝石光学表面的柔性气囊抛光理论及中频误差控制机制(JCYJ20160517103720819

LBO的腔内倍频特性研究

从倍频转换效率公式和腔内倍频的稳定态条件出发,得到倍频波的功率密度公式,进而得出倍频晶体最佳长度和倍频波最大功率密度的表达式。以LBO晶体Ⅰ类临界相位匹配腔内倍频946 nm为例,根据倍频波的功率密度公式,从理论上讨论了LBO长度、功率密度比对倍频波功率密度的影响,为LBO倍频产生473 nm蓝光实验提供了理论指导。虽然这里只是讨论了LBOⅠ类临界相位匹配倍频946 nm,但对所有腔内倍频实验(不同倍频晶体或不同倍频频率)具有借鉴作用

A male-specific expression gene, encodes a novel anionic antimicrobial peptide, scygonadin, in Scylla serrata

【英文摘要】Scygonadin is a novel antimicrobial peptide, which was originally isolated from the seminal plasma of the mud crab, Scylla serrata. Based on the partial 20-residue NH2-terminal sequence of the peptide, H-Gly-Gln-Ala-Leu-Asn-Lys-Leu-Met-Pro-Lys-Ile-Val-Ser-Ala-Ile-Ile-Tyr-Met-Val-Gly-OH, scygonadin was cloned from the gonads of S. serrata using a degenerated reverse transcriptase (RT)-PCR and rapid amplification of cDNA ends (RACE). The full-length cDNA sequence contains an open reading frame of 539 bases (excluding polyA) with a coding capacity of 126 amino acids, which constitutes a putative NH2-terminal signal sequence (1–24) and a mature peptide (25–126). Analysis of the genomic DNA sequence revealed that scygonadin consists of 2300 bp containing two introns (1569 and 120 bp) and three exons (187, 131 and 218 bp) and this sequence is different from any other reported antimicrobial peptide. The theoretical pI of the mature peptide is 6.09, which suggests that it is an anionic molecule. The sex and tissue-specific expression of the scygonadin gene was revealed using RT-PCR and Northern-blot analysis of multiple tissues of S. serrata males and females and this demonstrated that the scygonadin gene was predominantly expressed in the male reproductive tract of S. serrata and was restricted to the ejaculatory duct. This suggests that scygonadin might be one of the antibacterial peptides responsible for protection of the male crab reproductive tract from invading pathogenic microorganisms, so as to maintain a sterile environment leading to successful fertilization

3D-printed integrative probeheads for magnetic resonance

射频探头前端作为核磁共振设备的核心部件之一，极大程度的决定着系统实验性能的优劣。探头前端通常由射频线圈、射频电路及样品检测管道等部分组成。现有的射频线圈制作技术主要是通过手工或机械手段按照所需的线圈形状进行绕制。但是，当线圈结构较为复杂、不规则，或体积尺寸较小时，常规绕制方法便难以满足结构设计和制造的精度需求，因此造成线圈性能的劣化，增大检测区域的射频场不均匀性，对核磁共振检测产生负面影响。本研究中，利用3D打印熔融沉积制造或光敏树脂选择性固化技术精确加工出一体化磁共振探头前端，使用常温液态金属填充线圈模型管路形成射频线圈，搭建出稳定的一体化磁共振射频探头。利用高精度3D打印和液态金属灌注技术制备出包含有射频线圈和定制化样品管道结构在内的一体化磁共振射频探头前端，克服了传统磁共振三维微型线圈成型困难、与样品腔匹配程度差等问题，提高了探头的信噪比，为定制化的磁共振检测提供了新思路。 该工作由厦门大学电子科学与技术学院陈忠教授、游学秋副研究员和孙惠军高级工程师共同指导完成，博士研究生谢君尧为论文第一作者。厦门大学电子科学与技术学院黄玉清高级工程师、王忻昌副教授、倪祖荣助理教授、硕士研究生张德超，化学化工学院杨朝勇教授、博士研究生李星锐，萨本栋微米纳米科学技术研究院陈宏教授为合作作者。【Abstract】Magnetic resonance (MR) technology has been widely employed in scientific research, clinical diagnosis and geological survey. However, the fabrication of MR radio frequency probeheads still face difficulties in integration, customization and miniaturization. Here, we utilized 3D printing and liquid metal filling techniques to fabricate integrative radio frequency probeheads for MR experiments. The 3D-printed probehead with micrometer precision generally consists of liquid metal coils, customized sample chambers and radio frequency circuit interfaces. We screened different 3D printing materials and optimized the liquid metals by incorporating metal microparticles. The 3D-printed probeheads are capable of performing both routine and nonconventional MR experiments, including in situ electrochemical analysis, in situ reaction monitoring with continues-flow paramagnetic particles and ions separation, and small-sample MR imaging. Due to the flexibility and accuracy of 3D printing techniques, we can accurately obtain complicated coil geometries at the micrometer scale, shortening the fabrication timescale and extending the application scenarios.The work is supported by the National Natural Science Foundation of China (Grants U1632274, 11761141010, U1805261, 11475142, 22073078, and 61801411), and China Postdoctoral Science Foundation (2017M622075).研究工作得到国家自然科学基金、中国博士后科学基金等项目支持

松嫩平原的湿地环境与保护

松嫩平原中西部因长期地质下沉，湖泡星罗棋布，分布有大面积湿地。初步统计湿地面积约６０余万ｈｍ２，是水禽重要栖息繁殖地，也是东亚水禽南北迁徙主干线上的重要停歇地。现有扎龙、向海和莫莫格三个国家级湿地自然保护区。该平原主要有芦苇湿地、苔草湿地、浅水水生植物湿地和碱蓬盐沼。有鸟类２６０种，其中水禽８１种，水禽数量受湿地变化的影响

Characterization of Generation LiFetime in the n-Region For Heteroface GaAs Solar Cell

使用简单的微分电流和微分电容技术，从反向偏置的I-V和C-V数据计算异质面PPngAAS太阳电池n层少子产生寿命剖面图。讨论它对电池性能的影响。The generation liFetime profile in the n-region of a ppn GaAs heterofacesolar cell had been determined by using a simple diFFerential current and capacitance tech-nique From the reverse-biased I-V and C-V data.The eFFect of generation liFetime on cell per- Formance waiq discussed

Tunneling EFFects in the Current-voltage Characteristics of GaAs Heteroface Solar Cell

在200~300k温度内测量了由lPE生长的异质面高效gAAlS太阳电池暗电流-电压特性的温度关系，对实测的I-V特性进行拟合分析，认为低温低偏压下的过剩电流，起因于耗尽层内禁带中局域态间热协助的多级带间隧穿效应.Dark Forward current-voltage characteristics as a Function of temperature between 200 K and 300 K For GaAs heteroface solar cell produced by LPE process were measured.Theoretical Fitting-analysis on the measured values were made.The observed excess current at lower temperature and in lower Forward bias regions may arise From interband tunneling eFFects assisted by the thermal,activation within local deFect states in depletion layer