A Study on Sustainable Development of Ganzhou Tungsten Industry

内容摘要 钨是中国在国际市场占有绝对优势地位的战略金属资源。赣南被称作“世界钨都”,中国钨资源50％的储量和产量集中在赣南山区。然而，由于中国钨行业产能盲目扩大，出口量缺乏有效控制，导致国际钨品价格长期低迷，中国钨企业长期效益低下。赣南不但没能因“钨”而致富，反而一度较长时间忍受着因钨开采和冶炼而带来的环境和社会问题的困扰。如何将赣南的钨“资源优势”转化为“经济效益”和“经济优势”是本文所要论述的中心问题。 本文通过对世界钨市场和中国钨行业现状及发展趋势等外部环境介绍及对赣南钨行业内部资源的分析，指出了赣南钨行业发展所面临的威胁和存在的主要问题，并应用战略管理的有关理论和分析工具，提出了发...ABSTRACT Tungsten is an important strategic metal resource. As owing 70% tungsten reservation of the world, China takes an absolute good place in the international market. In China, about 50% of tungsten raw material are from South Jiangxi Province (Ganzhou), which has been called “Tungsten Town of the World”. However, as a result of tungsten products over-producing and over-exporting, China Tu...学位：工商管理硕士院系专业：管理学院工商管理教育中心_工商管理硕士(MBA)学号：X200015089

关于“经济发展方式转变进程中的财税政策”的探讨(笔谈)

转变经济发展方式是当前中国的热门话题,而上海在城市发展中又肩负着率先转变的重要任务,在这一意义和背景下,2010年4月24日由上海金融学院学院主办、上海金融学院公共经济管理学院承办的“《中国城市财政发展报告2009/2010:促进‘两个中心’建设的上海城市财政》首发式暨‘经济发展方式转变进程中的财税政策’论坛“在我校举行。与会专家围绕经济发展方式转变进程中的财税政策的“趋势与目标“、“机遇和挑战“、“实施方略“和“地方实践“等四个专题进行研讨,各抒己见,智慧交锋。现将其真知灼见整理摘要与读者分享,以期待更多学者共同关注当前经济发展方式转变进程中的财税政策

Report On The Pratical Test of Intensive Model Culture In Penaeus monodon

作者于1995年在同安县西柯养殖区进行了斑节对虾(草虾)精养模式养殖试验,本文报告了此次试验的经验与问题,并就其原因做了简要分析。The pratical test culture in Penaeus monodon by using the intensive model was carried out during the period From May to September 1995 in Xike Farming ponds, Tongan, Xiamen.Both successes and problems in this test were brieFly discussed in present paper

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors