Design and Implementation of the United Tax System Based on Local Tax and National Tax Authorities in a City

某市国地税联合办税系统将国税和地税等税务系统进行了连接，通过信息资源共享，实现资源整合。它提高了工作效率，缩短了纳税人办证缴税时间，减轻了纳税人负担，同时为提升信息管税水平奠定了坚实的基础。 运用现代信息和互联网技术，建立了一个为纳税人提供优质服务的平台，提高了前台工作效率，提高了税收数据质量，节约了税务机关人力资源，提高了办税便利性，节约了纳税人办税成本。 基于J2EE架构的某市国地税联合办税系统分析与设计，可以得出需要主要解决纳税人登记、国地税信息共享等问题。论文主要工作包括： 1、完成了地税联合办税系统需求分析，采用例图、系统用例描述等工具表达了系统功能需求。 2、完成了包括设立...The united system of national and local authorities will connect their own individual systems. It can realize information sharing and resource integration. It can improve work efficiency, shorten the tax time of taxpayers, and reduce the burden of taxpayers. Of course it has laid a solid foundation for improving tax information management. Modern information and internet technology are used to hi...学位：工程硕士院系专业：软件学院_软件工程学号：X201323134

Design of Multi-Channel Data Acquisition Unit for Geotechnical Engineering Based on S3C44B0

针对岩土工程对现场数据采集的精度和速度提出了更高的要求,该文以S3C44b0处理器为核心,辅以必要的外围电路,设计了一种上位机监控的多路数据采集器。采用AdS8505芯片进行Ad数据采集,达到16位的精度;采用电子开关Cd4067芯片扩展输入通道,实现了16路信号的数据采集;通过rS-485方式与PC机进行数据通信,实现上位机对采集器的控制和数据的处理显示,进而设计出了高精度、高分辨率、多通道的数据采集系统。Meeting the higher request in precision and speed toward data acquisition for geotechnical engineering,this paper taking the S3C44B0 processor as the core and adding the necessary peripheral circuit,design a kind of PC monitoring of multi-channel data acquisition unit.Using ADS8505 for AD data acquisition,reach 16 bit accuracy;Expand input channel by using CD4067 which is an electronic switch,realize the 16 channel signal acquisition;Communicate with PC through RS-485 so that upper computer can control it and data can process and display,then design a data acquisition system with high accuracy,high resolution and multi-channel

并购模式与企业创新

并购与创新是发达国家企业发展的重要驱动力。中国企业并购交易已居全球第二但创新能力仍旧不足,并购能否促进创新依然是有待解答的重大命题。近年来,境内并购稳步增长但跨境并购趋于下降引发了诸多质疑,两种模式并购对创新影响是否不同?本文构建数理模型,对比分析了跨境并购与境内并购对企业创新的影响机制,利用2007—2017年中国A股制造业上市公司数据所做的实证检验表明,两种模式的并购都能够促进创新,且跨境并购的创新效应更强。进一步的研究发现,两种模式并购都提升了企业生产率和无形资产存量,该"效率提升"效应促进了企业创新;两种模式并购也都加重了并购方的资产负债率,对创新产生负效应。不同的是,跨境并购没有带来垄断效应,而境内并购所提升的市场势力对创新造成负效应,使得其"资源替代"效应对创新产出的负面影响更大。可见,当前跨境并购仍是中国企业创新的重要战略,而境内并购的垄断效应亟需规制。本文深化了并购模式对企业创新影响机制的研究,并能为国家和企业创新战略和并购模式选择提供理论与实践支撑。国家自然科学基金面上项目“并购与创新：基于中国装备制造业理论与实证研究”（批准号71573219）国家社会科学基金重大项目“中国产业创新发展战略研究”（批准号15ZDC013

Detection of incoherent broadband terahertz light using antenna-coupled high-electron-mobility field-effect transistors

The sensitivity of direct terahertz detectors based on self-mixing of terahertz electromagnetic wave in field-effect transistors is being improved with noise-equivalent power close to that of Schottky-barrier-diode detectors. Here we report such detectors based on AlGaN/GaN two-dimensional electron gas at 77~K are able to sense broadband and incoherent terahertz radiation. The measured photocurrent as a function of the gate voltage agrees well with the self-mixing model and the spectral response is mainly determined by the antenna. A Fourier-transform spectrometer equipped with detectors designed for 340, 650 and 900~GHz bands allows for terahertz spectroscopy in a frequency range from 0.1 to 2.0~THz. The 900~GHz detector at 77~K offers an optical sensitivity about $1~\mathrm{pW/\sqrt{Hz}}$ being comparable to a commercial silicon bolometer at 4.2~K. By further improving the sensitivity, room-temperature detectors would find applications in active/passive terahertz imaging and terahertz spectroscopy.Comment: 4.5 pages, 5 figure

“秤砣虽小压千斤”——解析金属离子在纳米药物自组装中的功能设计

目前,化疗的最大障碍是化疗药物在杀死癌细胞的同时对人体正常细胞,尤其是免疫细胞造成损伤.将化疗小分子药物特异性地递送到肿瘤部位,从而提高疗效并降低其毒副作用是亟待解决的现实难题.纳米药物主要由活性药物分子和递送系统(即药物载体)组成,是纳米材料或纳米颗粒在医学中最新发展起来的应用形式.由于其颗粒

Preliminary studies on the scale insect pest of Pseudaulacaspis cockerelli in mangrove

首次发现陆生考氏白盾蚧严重为害潮间带红树植物秋茄。通过野外定位调查和室内饲养观察,研究其危害特征、种群分布、生殖力和自然死亡率。结果表明,考氏白盾蚧主要分布在秋茄叶片主脉两侧,叶背虫口数显著多于叶面(P<0.01),单叶虫口数多为1-50头,平均25.65头,最高418头;秋茄植株不同垂直空间层次的虫口密度无显著差异,但聚集度随垂直空间下降而增大;种群平均产卵量每雌52.22粒,自然死亡率69.35%,寄生蜂寄生是最主要的死亡因子,寄生率达34.23%;与几种陆生寄主植物相比,红树林考氏白盾蚧的种群密度、生殖力、叶最高虫口数均较高,该虫对潮间带生境及寄主秋茄具有适应性。The scale insect,Pseudaulacaspis cockerelli is an important pest for many kinds of plants for a long time in the land.In 2006,it was found firstly attacking the mangrove plant of Kandelia obovata in the tideland in Xiamen City,and had led to badly damages.Based on the field surveys and lab feeding,this paper dealed with its damage characteristic,population distribution,fecundity and natural mortality etc.The results showed that the scale insect mainly distributed on both sides of the midvien of K.obovata leaves,but the individual on the abaxial surface was significantly more than those on the adaxial surface(P<0.01).The individual number of one leaf mostly fluctuated from 1 to 50,and the average and tiptop numbers were 25.65 and 418,respectively.The pest population density had no remarkable discrepancies among different vertical spatial layer of K.obovata,however,its aggregating degree increased with falling of the layer.The population had an avarage fecundity of 52.22 each female and a high natural mortality of 69.53%.The main natural death factor were two species of parasites(Hymenoptera: Chalcididae),and their total parasitical ratio reached 34.23%.In the mass,the pest population density,fecundity and tiptop individual number of a leaf in the mongrove were all more than those in serval other host plants on land,which implied that this scale insect had a high adaptability to the habitat of tideland and the plant of K.obovata

中医“状态辨治”构建的必要性及其应用举隅

中医\"状态辨治\"思维及其相关理论的构建,对突破单纯辨病或辨证或辨症思维方式有建设性意义,对完善中医辨证论治体系不无裨益。文章着眼于把生命从出生、成长到死亡的起伏看成不同的状态,从状态角度辨治,力求达到从定性到定量的精准治疗;同时提出中医治疗就是人体\"土壤改造\"的过程,帮助理解状态辨治。最后通过列举1则状态辨治的验案以期理解中医\"状态辨治\"的内涵。厦门市重大科技计划项目(No.3502Z20100006);;厦门市科技计划高校创新项目(No.3502 Z20153027)~

Surface Water Hydrology Simulation of Jiulong River Basin Based on GIS and DEM

　　运用 GIS软件 ARC/INFO、ArcView,以九龙江流域为例,探讨了数字高程模型(DEM)的处理及其水文模拟分析。对九龙江流域分幅数字高程模型(DEM)进行图幅拼接、网格重分及切割等处理分析,生成九龙江流域数字高程模型。基于DEM和GIS进行流域的水文模拟分析,包括洼地填充、水流方向计算、水流累积量计算、水网提取,最后进行了九龙江全流域及子流域界线的划分,生成了数字流域。The treatment and hydrology simulation analysis of digital elevation model (DEM) are discussed using ARC/INFO and ArcView of GIS software with an example of the Jiulong River Basin. The digital elevation model of the Jiulong River Basin is generated through map mosaic, grid re-division, and separation of all the DEM maps of the Jiulong River Basin. The hydrological simulation is conducted based on DEM and GIS, for the major processes of lowland water infilling, calculation of water flow direction and water flow accumulation, and water network layout. Finally the digital basin is generated through separations of the whole basin and the sub-basins of the Jiulong Basin.福建省重大科技项目(编号:2002H009)

Genetic Diversity Analysis of Five Populations of Paphia undulata

采用形态特征和微卫星分子标记对采自菲律宾(PH)、泰国(TH)、福建云霄(YX)、海南儋州(HN)和广西北海(BH)的5个地理群体的波纹巴非蛤(Paphia undulata)进行遗传多样性分析.形态差异分析结果显示,国外群体和国内群体形态差异明显:2个国外群体(PH和TH)形态接近,聚为一支;国内支系中,YX和HN群体的形态较近,先聚为一支,而BH群体的外部形态与前两者差异较大.Hardy-Weinberg平衡检验检测到所有群体在5个位点上均出现不同程度地偏离平衡.5个群体间遗传分化指数(FST,0.000 5~0.183 1)、基因流值(Nm,2.230 46~1 066.23)以及分子方差分析(AMOVA,群体间的变异贡献率为10.21%,p<0.000 1)结果表明,群体间存在中等程度的分化.基于遗传距离的非加权组平均法(UPGMA)聚类分析显示:2个国外群体和3个国内群体分别聚为一支,再聚为一个整体;国内支系中,YX和BH群体先聚为一体,再与HN群体聚类.研究结果揭示了波纹巴非蛤较高的遗传多样性水平和中等程度的遗传分化水平,同时也暗示其现有的遗传分化程度受到人类生产活动的干扰.Genetic diversity of five populations of Paphia undulata sampled from Philippines( PH),Thailand( TH),Fujian Yunxiao( YX),Hainan Danzhou( HN) and Guangxi Beihai( BH) was studied using the morphological variation analysis and 8 micro-satellite markers.The morphological variations showed significant differences between the Chinese group and the exotic group.Within the Chinese group,the samples from YX and HN populations were rather similar in morphology,whereas BH population differed greatly from the above two populations.Meanwhile,significant departures from Hardy-Weinberg equilibrium were observed in 5 of the 8 microsatellite loci in all the 5 populations.The lines of FST( 0. 000 5 to 0. 183 1),Nm( 2. 230 46 to 1 066. 23) and AMOVA analysis( 10. 21% of genetic variation was distributed within groups with the significant value,p<0. 000 1) across all populations indicated that there was medium level of divergence among the5 P. undulata populations.The UPGMA clustering tree based on genetic distance demonstrated that the populations of PH and TH clustered into one group,and the other three Chinese populations clustered into one other group.Within the Chinese group,the HN population clustered into one group,while the populations of YX and BH clustered together,which indicated that the YX population was more closely related to the BH population.In this study,high levels of genetic diversity within populations and moderate levels of genetic differentiation among populations were presented for P. undulata.Our data also revealed that the genetic pattern of P. undulata was likely to be disturbed by human-mediated passive dispersal via aquaculture activities.These results would provide scientific basis for the conservation and reasonable utilization of natural resources of P. undulata.海洋公益性行业科研专项(201205021-2);; 国家贝类产业技术体系项目(CARS-48

碎屑石榴石地球化学物源分析与解释:粒度的影响

单矿物地球化学分析是沉积物源分析研究的重要手段,运用广泛。沉积物中碎屑矿物的粒度组成,即水动力分选作用,是否影响到基于这种方法的物源解释,目前尚不清楚且受到的关注不多。通过研究柴达木盆地北缘地区第三系沉积物中的680颗碎屑石榴石（0.068～0.557 mm）的主量元素地球化学组成数据,解释了不同粒度的碎屑石榴石物源。结果显示,0.063～0.125 mm的碎屑石榴石的地球化学结果中Fe2+与Mn2+含量更高,表明其母岩的变质结晶程度较弱,故物源解释结果更可能为中—低级角闪岩相变沉积岩,而其他粒径的碎屑石榴石Ca2+与Mg2+含量更高,这说明其物源区的温压条件较前者高,因而物源解释结果为低级变质相,中酸性火成岩,榴辉岩等宽泛结果。这种碎屑石榴石粒度差异导致的地球化学组成的不同,说明碎屑石榴石的颗粒大小在一定程度上会影响物源解释结果。因此,在进行单矿物地球化学物源研究时,选取特定粒径（0.063～0.125 mm或0.125～0.25 mm）组成的碎屑矿物进行分析,可以消除水动力分选作用的影响,有助于获得更为准确的物源解释结果。国家自然科学基金项目(41806052);;\n福建省自然科学基金项目(2017J05067);;\n厦门大学校长基金项目(20720160114);厦门大学大学生创新创业训练计划项目(2017X0642)~