The Research of Strategy Development about Guangxi Non-ferrous Metal Holding Limited

广西矿产资源丰富，有色金属产量位居全国前列，以有色金属为主的矿产业在广西经济发展中占据着重要地位，其中广西有色金属集团有限公司（以下简称广西有色金属集团）作为广西境内规模较大的有色金属企业，为广西经济的发展起到非常积极的促进作用。但是，作为不可再生资源，广西有色金属集团与其他能源企业一样面临着严峻的发展问题，如何解决企业资源瓶颈问题，如何针对日渐激烈的市场竞争和企业现状制定合适的发展战略，是广西有色金属集团亟待需要解决的关键问题。 本文就广西有色金属集团发展战略展开分析和论述，就公司发展现状予以客观分析和评价，剖析公司的发展战略环境，并针对公司当前所存在的主要问题和困难提出切实可行的发展对策...There are all sorts of mineral resources in Guangxi, the production of non-ferrous metal ranked the forefront all around our country. The mining industry which mainly of non-ferrous metal occupies a significant position in the economic development of Guangxi. As a large non-ferrous metal enterprise in Guangxi, Guangxi non-ferrous metal Holding Limited (referred to Guangxi non-ferrous metals group ...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：X201215613

Effects of NS-lactobacillus complex on intestinal flora balance and growth performance of pigs

【目的】研究NS复合乳酸菌对猪生长性能及其肠道菌群平衡的影响,为进一步推广使用NS系列复合乳酸菌制剂提供科学依据。【方法】将30头重胎母猪及其所产342头仔猪随机分成3组,其中A组饲喂添加0.2%NS复合乳酸菌制剂的基础日粮,B组饲喂加0.2%六味酸制剂的基础日粮添,C组饲喂基础日粮。试验期间对猪的日增重、饲料转化率、成活率和经济效益进行分析,并检测仔猪肠道中大肠杆菌和乳酸菌的含量。【结果】试验后期(63～150日龄),A组猪的日增重和饲料转化率均显著高于C组(P0.05)。除仔猪回肠内容物中的大肠杆菌数量是C组略低于A、B组外,其他肠道各段的大肠杆菌数量均是C组高于A、B组;在乳酸菌方面则恰好相反,仔猪肠道各段的乳酸菌数量均是A、B组高于C组。经济效益评估分析,发现A组的平均毛收益较C组高16.7元/头,较B组高6.7元/头,但差异不显著(P>0.05)。【结论】NS复合乳酸菌通过改善仔猪生长前期胃肠道的菌群平衡,增强仔猪抵抗断奶应激能力和提高成活率,在中后期能有效提高饲料转化率,显著促进肉猪增重,提高养猪生产的经济效益

NS复合乳酸菌制剂对商品猪机体免疫水平的影响

为了研究微生态制剂NS复合乳酸菌对商品猪体液免疫和细胞免疫水平的影响,试验采用杜长二元杂交商品猪81头,按体重和性别分成3组,A组为对照组(饲喂基础日粮),B组添加0.2%NS复合乳酸菌制剂,C组添加0.2%六味酸制剂。测定试验前(0天)及试验第30天各组猪血清免疫球蛋白IgG、IgA、IgM含量和猪瘟、伪狂犬病、蓝耳病病毒抗体水平。结果表明:在商品猪饲料中添加NS复合乳酸菌制剂能够有效增强商品猪的体液免疫功能,提高猪瘟疫苗的抗体水平,还能增加商品猪外周血T细胞CD3+和CD4+T淋巴细胞亚群的比例,调节CD4+/CD8+亚群比值,对商品猪的细胞免疫功能也有较好的增强和调节作用

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