71 research outputs found

    Revenue Risk Management ——Taking The National Tax Administration in Knitting Industry in ChangLe FuZhou as a Study Case

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    摘要 随着经济全球化和我国工业化、信息化、城镇化、市场化、国际化的深入发展,纳税人数量不断增多,企业经济性质、组织形式、经营方式呈现多样化,这些发展趋势都使得税收管理上人少户多、税务干部的素质跟不上形势的发展等方面的矛盾加剧,再加上传统单一的税收管理员的管理方式和粗放的税源管理模式,使得税收风险不断加大。如何控制和降低税收风险?税收风险管理理论适应了形势发展的需要,逐渐为人们所接受。 税收风险管理就是寻找可能导致税收风险的不确定因素,针对这些不确定因素,通过对风险的识别、评估、提出解决方案、对税务机关内部有限的管理资源的合理配置和优化,以及促使企业纳税遵从度最大化等系统的举措,以达到使税收...Abstract With the economic globalization and our country’s further development of industrialization、informatization、urbanization、marketization and internationalization, the number of taxpayers is increasing, the economic nature、organizational forms and type of operation of enterprise is making varied. These developing trends result in the exacerbation of the contradiction of tax management on t...学位:经济学硕士院系专业:经济学院财政系_财政学(含税收学)学号:1552008115186

    To Improve the Efficacy of the UN Convention on the Law of the Sea

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    [文摘]1982年《联合国海洋法公约》自通过至今已经走过了近三十年,检视公约存在的不足,考察完善公约应遵守的原则及应采取的方式和机制,显得尤为必要。公约在海洋法上的宪章地位要求我们以整体海洋观审视公约,在海洋法的现有框架内与国际法的宏观架构下完善公约。鉴于公约自身规定的修正程序难以启动,通过外交协商及有关国际和区域组织的立法活动来统一国家实践仍不失为当前最为重要和有效的公约完善方式。同时,海洋的多重治理模式也要求进一步协调国际、区域组织和其他相关机构的行动,强化公约在国内的统一适用与有效执行。[Abstract]It has been nearly 30years since the adoption of the UN Convention on the Law of the Sea(UNCLOS) in 1982.This article seeks to examine The status of the Convention as it is currently implemented,identify its deficiencies,and explore the principles to follow and the approaches and institutional mechanisms to adopt to enhance its efficacy.The constitutional status of the Convention in the context of the law of the sea dictates that the Convention is viewed from the vantage point of the seas as a whole and its efficacy enhanced as part of the law of the sea and international law.As the amendment procedure prescribed in the Convention renders it difficult to activate,the most effective way to enhance the efficacy of the Convention is arguably through the standardization of state practices via diplomatic negotiations and legislation at the international and regional levels.Meanwhile,the multi-tierednature of the rule of the sea also calls for the cooperation among international and regional organizations as well as other related institutions,and the synchronization of their ac- tions,which will have the effect of strengthening the uniform application and effective implementation of the Convention across sovereign states

    中国明对虾基因组串联重复序列分析

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    An experimental investigation on the burning charactistics of collision-merged diesel fuel droplets

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    本實驗主要以Ink-Jet printing method產生穩定的雙自由液滴,經碰撞形成多組份液滴後,進入高溫燃燒爐,觀察液滴在各種撞擊條件的結合情況及燃燒特性。實驗中第一部分以高級柴油(Diesel Fuel, Premium Grade)、Methanol(CH3OH)與不可燃性液體Water(H2O)為主,在不同的液滴尺寸、比例下,觀察其燃燒現象,第二部份則將H2O與CH3OH以各種比例預混,產生不同體積濃度之CH3OH液滴後再與柴油做碰撞燃燒,與第一部份做比較。 實驗結果發現,H2O與柴油撞擊燃燒後會有水滴微爆與熄滅兩種情況,微爆出現機率與H2O的體積大小成反比。CH3OH與柴油撞擊燃燒會產生劇烈且不穩定的微爆。H2O與CH3OH預混部分,發現甲醇體積濃度變化會影響到撞擊液滴的結合形式,並影響到燃燒情況。Experiment applies Ink-Jet Printing method to generate dual free droplet streams and collided along their path as they fall. Then the collided droplets will fall into the combustion chamber freely and some collision states and burning characteristics are investigated. We use diesel fuel, methanol, and water in the first part of this experiment, and use diesel fuel and water-methanol-premixture in the second part. Then we will compare the results of these two parts. According to the experiment results, the combustion states of water and diesel fuel are water droplet micro-explosion and extinction. The probability of the occurrence of micro-explosion will increase when the water droplet size decrease. In discussion on the diesel fuel and methanol we find strong and unstable micro-explosion. In the second part of this experiment, we find the difference of the concentration of water-methanol-premixture will affect the droplet collision and burning state.目 錄 誌謝………………………………………………………………………I 中文摘要………………………………………………………………II 英文摘要………………………………………………………………III 目錄……………………………………………………………………IV 圖表目錄………………………………………………………………VI 第一章 緒論……………………………………………………………1 1-1前言…………………………………………………………………1 1-2文獻回顧……………………………………………………………2 1-3研究動機……………………………………………………………4 第二章 實驗設備與步驟………………………………………………5 2-1 實驗設備…………………………………………………………5 2-2 實驗步驟及資料處理方法………………………………………11 第三章 基本理論………………………………………………………14 第四章 結果與討論……………………………………………………17 4-1水(H2O)與柴油(Diesel fuel)之撞擊、燃燒現象觀察………17 4-2甲醇(Methanol)與柴油之撞擊、燃燒行為觀察………………22 4-3甲醇和水預混後與柴油之撞擊、燃燒現象觀察………………23 4-4整理………………………………………………………………28 第五章 結論……………………………………………………………29 參考文獻………………………………………………………………30 附圖……………………………………………………………………32 附錄……………………………………………………………………8

    中国对虾2个群体杂交子一代生长和存活率比较

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    高效能反渗透/纳滤复合分离膜材料、其制备方法及用途

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    本发明公开了一种高效能反渗透/纳滤复合分离膜材料及其制备方法。该膜材料由纳米多孔材料与有机聚合物膜材料组成,并且纳米多孔材料嵌入在有机聚合物膜材料中。采用将纳米多孔材料预先自组装在由聚砜等超滤支撑材料构成的支撑层上面,随后通过聚合反应,将纳米多孔材料引入聚合物薄膜层中的方法,得到的复合分离膜材料能够促使H2O等小分子优先从有机聚合物膜层孔道和多孔纳米材料孔道快速透过,而无机盐、有机分子等大分子水合物不能透过,提高了膜渗透能力,同时增强了膜的化学稳定性和热稳定性,达到净化水资源的目的,特别适用于海水淡化、苦咸水淡化、生活污水净化及及食品或工业废水处理领域中

    一种基于遗传信息和优良性状的凡纳滨对虾基础群体的构建方法

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    本发明提供了一种基于遗传信息和优良性状的凡纳滨对虾基础群体的构建方法,具体步骤为:选用多个具有不同优良性状的凡纳滨对虾群体;利用分子标记分析引进个体间的亲缘关系;基于亲缘关系信息和优良性状信息设计配种方案,建立大量家系,构成具有较丰富遗传变异和优良性状的凡纳滨对虾基础群体。本发明在对虾基础群体构建过程中,利用分子标记检测不同个体间的亲缘关系并设计配种方案,可以避免近亲交配、打破基因连锁、得到充分重组、定向交配,保证育种工作的连续性和科学性,这样有利于获得具有较丰富遗传变异和较多优良基因的凡纳滨对虾基础群体,进而可以对其后代进行较大程度的遗传改良和生产性能提高,并带来较好的经济效益。 主权利要求:&nbsp;1.一种基于遗传信息和优良性状的凡纳滨对虾基础群体的构建方法,其特征在于所述方法包括以下步骤:(1)、针对生长快、抗病性强、抗逆性强、存活率高和适应高密度饲养性状,引入7个凡纳滨对虾良种群体,分别为SISMAM、OCENAI、SINGAP、KONABA、HAWAII、HIGHHA和GUAMIS,对引进群体及群体内个体进行编号;(2)、利用分子标记对所述凡纳滨对虾个体进行遗传分析,检测个体间的亲缘关系,具体包括下述子步骤:a、提取亲虾个体的基因组DNA,从凡纳滨对虾的大量微卫星位点中筛选出具备重复性好、稳定性好、符合哈代温伯格平衡定律、无连锁关系、不存在无效等位基因、多态信息含量值大于0.60的高多态性微卫星位点,以便于精确地计算个体间的亲缘关系;b、分别提取所有个体的基因组DNA,每个个体的基因组DNA均使用筛选出的8个高多态性微卫星位点的正反向引物,分别进行PCR扩增;所述PCR扩增体系为:100ng每个个体的基因组DNA;10&times;PCRBuffer,2.5mL;Mg2+,1.5mmol/L;5U/mL的rTaq,0.2mL;10mmol/L的dNTP,0.5mL;10mmol/L的所述正反向引物各0.5mL;加双蒸水补体系到25mL;所述PCR扩增程序为:94℃预变性5min,94℃预变性30s,退火30s,延伸40s,循环32次,72℃延伸10min,4℃保存;所述8个高多态性微卫星的序列为:TUMXLv5.38:F:CCTTTATGACTTCCCCCGACR:CCGTACAGAAACGGAACGTCTUMXLv7.121:F:GGCACACTGTTTAGTCCTCGR:CGAACAGAATGGCAGAGGAGTUMXLv7.148:F:CATCGCTAAAATTCCGAAGCR:TAAAAATGAGGGGGTTGGAGTUMXLv7.56:F:CCATGGCTTTCCTCTTCTTTCR:AGGTAGGGAAGTCGTGAGGGTUMXLv8.220:F:GATGTGGTTGATGAAGTGATGR:CGCATTATCTAAATGGCAAGTUMXLv8.256:F:GGACTCACACTTCTGGTTCR:GGCTGCACCTTGTAAGTCTUMXLv9.43:F:GAGAGCAAATAAGAAAGGGCR:AGGATGCAAATGATAACGAGTUMXLv6.124:F:GAAGTGCTTCAGTTGGCGACR:ACCGGATATCTGTTGCGTTTC;c、PCR扩增产物先通过8%非变性聚丙烯酰胺凝胶-EB染色系统进行检测,在凝胶成像系统下观察,在不同个体间获得的多态性等位基因,进而获得本位点的遗传变异图谱信息;d、利用图谱分析软件QuantityOne4.5对所有的遗传变异图谱信息进行数字化处理;e、将数字化数据信息导入亲缘分析软件POPGEN软件和PHYLIP进行遗传多样性和亲缘分析,获得亲缘关系信息;(3)、选择亲缘系数小于0.050的亲虾进行组配,基于亲缘系数和个体所在群体具有的优良性状从群体中挑选符合条件的亲虾进行组配,建立家系。</p

    Be Kind to Oneself and Be Kind to Others——About the 4^th Anthropology Summit Roundtable Forum

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    第四届人类学高级论坛圆桌会议的主题是“人类生存与健康生活”,学者们认为,作为人类,必须善待自己,才能善待他人,这样才能生存下去并健康地生活。The theme of the 4^th Anthropology Summit Roundtable Forum is "human survival and healthy life". The scholars believe that humans should be kind to themselves so that they can be kind to others; and that only in this way can they survive and live healthy lives
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