Design and Implementation of Online Mall Based on Mobile Internet

在电子商务浪潮的推动下，网络购物以其高效、便捷的优势，成为经济全球化和全球信息化的一个重要领域。近年来，随着移动互联网技术的出现和不断完善，特别是智能手机的广泛普及，移动电子商务将成为电子商务发展的生力军。因此，适应移动互联网时代人们的消费习惯，发展移动端在线交易商城是大势所趋。 基于上述背景分下，本文设计和实现一套基于安卓的移动商城，系统分为客户端和服务端两个子系统。客户端子系统基于安卓平台和Java语言，可支持用户的注册登录、商品的浏览和排序、商品的搜索和分类、订单的查看和购物车等功能；服务端子系统基于B/S架构，采用MVC模式，可实现用户管理、订单管理、权限管理等功能。论文遵循软件工程...In the e-commerce wave, driven its efficient and convenient advantages, online shopping has become an important area of economic globalization and information technology. In recent years, with the advent of mobile Internet technology and continuous improvement, especially in the wide spread of smart phones, mobile e-commerce has become a force in e-commerce development. Therefore, to adapt to the ...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323077

小鱼仙草精油化学成分的GC-MS分析

福建省科委基金资助项目 (K20096);福建省自然科学基金项目;国家中医药管理局项目 (2000-J-P-40

Seed Phytosanitary Regulations

The harmonization of seed policies and regulations in the ASARECA member countries is the first step toward creating a seed market that is large enough to attract investment by local and international investors who will provide the quantity, quality and variety of improved seed to meet the region’s growing demands. Since September 1999, ASARECA with support from USAID has supported a pilot project through ECAPAPA in the East African Community (EAC) countries of Kenya, Tanzania and Uganda on five specific areas, namely - phytosanitary regulations - seed certification - plant variety protection - laws and regulations governing the seed trade - variety evaluation, release and registration. Each of these areas is the subject of a policy briefThe harmonization of seed policies and regulations in the ASARECA member countries is the first step toward creating a seed market that is large enough to attract investment by local and international investors..

Shape Selection and Multi-stability in Helical Ribbons

Helical structures, almost ubiquitous in biological systems, have inspired the design and manufacturing of helical devices with applications in nanoelecromechanical systems (NEMS), morphing structures, optoelectronics, micro-robotics and drug delivery devices. Meanwhile, multi-stable structures, represented by the Venus flytrap and slap bracelet, have attracted increasing attention due to their applications in making artificial muscles, bio-inspired robots, deployable aerospace components and energy harvesting devices. Here we show that the mechanical anisotropy pertinent to helical deformation, together with geometric nonlinearity associated with multi-stability, can lead to novel selection principle of the geometric shape and multi-stability in spontaneous helical ribbons. Simple table-top experiments were also performed to illustrate the working principle. Our work will promote understanding of spontaneous curling, twisting, wrinkling of thin objects and their instabilities, and serve as a tool in developing functional structures and devices with tunable, morphing geometries and smart actuation mechanism that can be applied in a spectrum of areas

我国模糊网纹溞（甲壳纲：双甲目）的补充描述

我国模糊网纹溞（甲壳纲：双甲目）的补充描述陈受忠，张世萍，宋希强中国科学院水生生物研究所武汉４３００７２华中在业大学水产系日本Ｕｅｎｏ氏在记述中国台湾的枝角类一文￣［２］的名录表中列入了模糊网纹（Ｃｅｒｉｏ－ｄａｐｈｎｉａｄｕｂｉａＲｉｃｈａｒｄ，１..

Immunorecognition of Estrogen Receptor in the Optic Ganglion of Scylla serrata

【中文摘要】 利用免疫细胞化学SABC法对锯缘青蟹(Scylla serrata)视神经节雌激素受体(ER)进行定位研究.结果表明:视神经节的视外髓、视内髓和视端髓存在ER免疫阳性细胞.视神经节存在的ER免疫阳性细胞可以为雌激素提供结合位点.本研究为雌激素参与视神经节神经内分泌调节作用提供了形态学依据. 【英文摘要】 Antisera generated in vertebrate and immunocytochemical SABC method was applied to observe the immunoreactive neurons and neuropils of estrogen receptor(ER) in optic ganglia of Scylla serrata.The results showed that:ER-immunoreactive substance was located in medulla externa,medulla interna and medulla terminalis in optic ganglion.ER-immunoreactive neurons in optic ganglia might provide the binding sites for estrogen and accept the feedback regulation of estrogen.This present work provides the morphological ...国家自然科学基金(30300269)资

Climate Change Adaptation Policy in Ghana: Priorities for the Agriculture Sector

This report is intended to complement the 2011 CCAFS publication “State of Climate Change Adaptation and Mitigation Efforts for Agriculture in Ghana” (Domozoro 2011). It provides relevant updates regarding the policies, projects, or initiatives introduced therein, and an assessment of the evolving political scenario. Specifically, this document presents an objective look at 17 key policy documents within three thematic areas: (1) governance, (2) agriculture, and (3) climate change institutions in Ghana. Several key projects are also included in this analysis given their relevance and status within Ghana’s agricultural adaptation regime. A discussion of the institutional arrangements in each of the thematic areas is provided first, along with a short description of each of the 17 policies and projects. Then, in the following analysis section, objectives and priorities for each of the policies are outlined, together with their evolution over time, intending to identify the temporal shifts in agricultural climate change policy direction in the country. Policy interplay between and within these thematic areas is also addressed. Power and influence dynamics between actors in Ghana’s climate change adaptation regime are discussed in the following section and the results of a Multilevel Stakeholder Influence Mapping (MSIM) exercise are provided. Finally, a discussion of key challenges and recommendations are provided, as identified through semi-structured interviews with actors across the country’s adaptation regime

Coil tuning detection module design of magnetic resonance imaging

线圈作为磁共振成像系统的重要组成部分,其性能直接影响成像质量。为了尽可能保证信噪比和图像质量,探测前需进行线圈调谐。调谐时,通过微调线圈的共振频率和阻抗两个参数,使线圈共振频率与拉莫尔频率一致,线圈和前放电路阻抗匹配。本文设计了一种线圈调谐的检测模块,阐述了模块的工作原理和软硬件设计。模块包括测量、处理两个部分,其中采用STM32采集电压数据,通过数据转换后用液晶屏显示实时波形。实际结果表明,此检测模块不仅延续了上位机调谐显示直观清晰的优点,而且兼具独立数码显示表的操作便捷的优点。Coil as an important part of magnetic resonance imaging system,its performance directly effects the imaging quality.In order to ensure the signal-to-noise and image quality as much as possible,it must tune before detect.When tuning,it make the coil resonance frequency is consistent whit the larmor frequency,coil and the circuit impedance matching by tuning the coli frequency and impedance.In this paper,we design a coil tuning detection module,elaborated the principle of module and design of software and hardware.This module includes two parts:measurement and processing. Use STM32 to collect the data of voltage,and display real-time waveform by LCD screen.It turned out that this module not only has the advantage of intuitive and clear by upper machine tuning,and both has the advantage of convenient operation.国家自然科学基金(11175149)资助项