中国创汇茶业发展的制约因素及对策

本文认为 ,制约中国创汇茶业发展的因素是茶叶世界市场竞争日益激烈 ;国有茶叶企业的经济体制转型不适应症 ;茶叶税赋重和成本逐年增加 ;产品科技含量低 ,档次不高 ;缺乏国际竞争力 ;宏观管理失控 ,部门职能作用弱化等。在创汇茶业发展上 ,应采取培育创汇型龙头企业 ,依靠科技提高经济效益 ,健全政府的宏观调控机制 ,实施名牌战略 ,发挥无形资产的效应等对策

Some Microbial Grow to Influence the Nitrogen Content in the Aging Process of Tobacco

烟草在加工成卷烟之前的复烤后的储藏、发酵和陈化过程统称醇化过程。分析醇化过程中生物碱及氮含量的变化,为有效防控微生物生长提供依据。实验方法 1.总生物碱的测定:YC/T 160-2002中国烟草及烟草制品总生物碱的测定连续流动法2.氮含量的测定:YC/T161-2002中国烟草及烟草制品总氮的测定连续流动法实验结果取8个正常烟叶样品作对照,霉变烟叶与正常烟叶比较值:实验显示微生物生长导致烟叶中生物碱含量降低,而总氮含量上升,生物碱降低的百分比基本上与总氮上升的百分比近似。证明烟叶中的部分微生物是以通过降解生物碱,吸收生物碱中的碳、氢、氧,释放氮元素为代谢途径的

关于BMI模型中规则可分解性的研究

对于我们在文[1]中所建立的基于区间估计的bMI模型及MyCIn确定性因子模型,本文说明了:1)规则是不可分解的;2)顺序组合运算对平行组合运算不满足分配律,因而使用时要谨慎小心

Discussion of Innovative Path on Cost Accounting in Modern Hospital

降低医疗成本、提高服务质量,是公立医院经营永恒的目标。成本核算是实现医院经营目标的重要手段。笔者阐述了医院成本核算的复杂性与特殊性,包括医疗服务的自身特点、国家政策和社会环境使医院成本核算基础差,不易比较和控制等特点。当前医院管理面临诸多挑战,加强医院成本核算具有重大意义。本研究就医院成本核算在医院管理中的应用做了初步探讨,并提出改进方法。The goals of hospital operation are decreasing medical cost and increasing quality of medical services.Cost accounting is an important method to achieve these goals.Including factors like the specific features of medical services,state policies and social environment lead to the fact that hospital cost have a weak basis and hard to compare and control,we illustrate the complexity and particularity of cost accounting.Facing a number of challenges,strengthening cost accounting is of great weight.We offer a preliminary account of the application of cost accounting in hospital management.福建省省属公益类科研院所基本科研专项项目(2014R1036-3

Hospital Managers Ought to Attach Importance to the Application of Hospital Management Ethics

医院管理伦理不同于医院管理道德,其具备独特的管理属性、内涵、功能、任务和目的。笔者探讨了医院管理与医院管理伦理之间的关系。当前医院管理面临诸多挑战,加强医院管理伦理建设具有重大意义。笔者就医院管理伦理在医院管理中的应用作了初步探讨,提出改进方法。Hospital management ethics is not hospital management moral,it has distinctive management attribute, connotation, function, tasks and goals.We discuss the relationship between hospital management and hospital management ethics.Because of facing a number of challenges, strengthening hospital management ethics is of great weight.We offer a preliminary account of the application of hospital management ethics in hospital management.福建省省属公益类科研院所基本科研专项项目(2014R1036-3

锂离子电池低温性能改善研究进展

锂离子电池因其能量密度高,循环寿命长等优点已成为新型动力电池领域的研究热点,但其温度特性尤其是低温性能较差制约着锂离子电池的进一步使用.本文综述了锂离子电池低温性能的研究进展,系统地分析了锂离子电池低温性能的主要限制因素.从正极、电解液、负极三个方面讨论了近年来研究者们提高电池低温性能的改性方法.并对提高锂离子电池低温性能的发展方向进行了展望.国家重点研发计划(No.2018YFB010400);;福建省高校产学合作项目(No.2018H6020)资

棕色固氮菌细菌铁蛋白捕获能力、稳定性和亚基相互作用的强度

选用柱层析、电泳和反相高效液相色谱(RP-HPLC)技术制备质谱纯棕色固氮菌细菌铁蛋白(Bacteri-al ferritin ofAzotobacter vinelandii,AVBF),并采用释放铁动力学和肽质量指纹图谱(Peptide mass fingerprint-ing,PMF)技术分别鉴定AVBF。基质辅助激光解吸电离飞行时间质谱(MALDI-TOF MS)和电泳技术揭示AVBF亚基之间相互作用强度、稳定性和聚合态。AVBF可直接捕获有机小分子亚甲蓝(MB),其捕获率为15.0±2.0MB/AVBF,认为介于AVBF亚基单体之间的血红素参与捕获MB。较高浓度(40%~50%)的乙腈和丙酮均能使AVBF和鲨鱼肝铁蛋白(Liver ferritin of shark,SLF)释放不稳定亚基,但在较低浓度(20%~30%)的乙腈条件下,却需要借助来源于质谱仪的激光才能使AVBF或SLF释放不稳定亚基,并供质谱分析。AVBF亚基之间的相互作用强度明显低于SLF。铁蛋白亚基之间的相互作用强度高低与铁蛋白执行释放和储存铁的速率有关

Clinical effect of damage-control orthopedics in the treatment of severe pelvic fracture

目的探讨骨科损伤控制(dCO)治疗严重骨盆骨折的临床效果。方法回顾性分析本院2010年1月~2014年1月收治的201例严重骨盆骨折患者临床资料,其中采用dCO治疗的患者为试验组(n=104),未采用dCO治疗的患者为对照组(n=97),观察两组的院内死亡率、手术时间、术中失血量、术中输液总量、术后并发症发生率和6 H乳酸清除率。结果试验组、对照组分别有7例(6.7%)和22例(22.7%)死亡,死亡原因均为失血性休克和多器官功能不全综合征,两组院内死亡率比较差异有统计学意义(P=0.003)。试验组的手术时间显著短于对照组[(55.7±11.2)MIn VS(121.5±21.3)MIn,P=0.012);试验组的术中出血量、术中输液总量均显著少于对照组[(250.3±54.3)Ml VS(612.5±56.7)Ml,(4613.9±1135.4)Ml VS(8821.3±2030.4)Ml,P=0.008、0.006)]。试验组、对照组术后并发症发生率分别为17.3%和24.7%,两组比较,差异无统计学意义(P=0.262)。试验组的急性呼吸窘迫综合征发生率显著低于对照组(P=0.038)。试验组、对照组术后6 H乳酸清除率分别为21.3%和11.2%,两组比较,差异有统计学意义(P=0.004)。结论 dCO有助于提高严重骨盆骨折患者的生存率、降低急性呼吸窘迫综合征发生率。Objective To explore the clinical effect of damage-control orthopedics(DCO) in the treatment of severe pelvic fracture.Methods Clinical data from 201 patients with severe pelvic fracture from January 2010 to January 2014 were retrospectively analyzed.Patients applied DCO was classified into experimental group(n=104),and those who didn′t were categorized into control group(n=97).The hospital mortality,operative time,intraoperative amount of bleeding,intraoperative amount of transfusion,incidence rate of postoperative complication,and lactate clearance rate of 6-hour in two groups was observed respectively.Results There were 7(6.7%) and 22(22.7%) dead cases in experimental group and control group And the causes of death were hemorrhagic shock and multiple organ dysfunction syndrome.The hospital mortality between two groups displayed a statistical difference(P =0.003).The operative time in experimental group[(55.7±11.2) min] was obviously shorter than that in control group [(121.5±21.3) min](P=0.012).In experimental group,the intraoperative amount of bleeding and amount of transfusion during surgery [(250.3 ±54.3) ml and(4613.9±1135.4)ml] in control group,and it was(612.5±56.7) ml and(8821.3±2030.4) ml respectively.After comparison,the two indexes in experimental group was obviously less than that in control group(P=0.00,0.006).The incidence rate of postoperative complication in experimental group and control group was 17.3% and 24.7% respectively,which didn′t display a statistical difference(P=0.262).The incidence rate of acute respiratory distress syndrome(ARDS) in experimental group was obviously lower than that in control group(P=0.038).The lactate clearance rate of 6-hour after surgery was 21.3% and11.2% in the experimental group and control group with a statistical difference(P=0.004).Conclusion DCO is beneficial to improve the survival rate of patients with severe pelvic fracture and reduce the incidence of ARDS

Hydrothermal synthetic ZnAl_2O_4 and Humidity sensing properties research

以Al2(SO4)3和zn(nO3)2为原料,采用水热法合成铝酸锌微粉体,通过扫描电镜和Xrd分析发现znAl2O4晶型良好,粒径小,呈纤维状均匀分布;进一步研究湿敏特性,结果表明:测试频率对阻抗-相对湿度(rH)特性曲线影响较大,阻抗随频率的增加而迅速减小,10kHz时在33%~95%的范围内曲线的线性度好,在相同的湿度下,试样的电容随频率的增加而减小,在低频100Hz下,电容随相对湿度的升高而增大。A simple hydrothermal was developed to fabricate ZnAl2O4 micro powder with Al2(SO4)3 and Zn(NO3)2 as raw materials,through the scanning electron microscopy(SEM)and XRD analysis found that the particles have good crystal shapesmall size,fibrous evenly distributed;Further researching the humidity sensing properties,the results show that test frequency have big effect on impedance-relative humidity(RH)characteristic curve,impedance decreases as frequency increases,the good linearity of the curve of impedance versus relative humidity appears at the frequency of 10KHZ,the capacitance of the sensor decreases as frequency increases in the same humidity and at low measurement frequency 100HZ,the capacitance increases as RH increases

r DNA sequence analysis and morphological redescription of Empoasca onukii from the tea growing area of Fujian

重新描述了小贯小绿叶蝉的形态结构,尤其是头部色斑、翅脉、腹部内突、下生殖板及其刚毛着生位置,并增加了足部(刺毛列)特征描述。通过PCr技术克隆得到该物种的r dnA序列,包括部分18S(1 843bP)和28S序列(667 bP)以及完整的5.8S(155 bP)、ITS1(3 114 bP)和ITS2序列(1 008 bP)。序列分析表明,18S,5.8S,28S与其他物种间具有90%~95%的序列一致性;而ITS1和ITS2序列变异性非常大。碱基组成比率分析显示ITS1以及ITS2具有AT偏好性,前者A+T占66.0%,后者占65.1%。与亲缘种的比较分析显示ITS1和ITS2具有丰富的多态位点,并且ITS2更适用于近缘种的分子鉴定。The morphological structures of Empoasca onukii,the cephalic splashes,vein,abdominal apodemes,subgenital plate and the arrangement of its bristles,and the characteristics of legs were redescribed,especially the arrangement of spines were added.Ribosomal DNA( r DNA) including partial of 18S( 1 843 bp),28S( 667 bp) and complete 5.8S( 155 bp),ITS1( 3 114 bp),ITS2( 1 008 bp) were isolated by PCR technology.Sequence analysis indicated that 18 S,5.8S and 28 S had high sequence identity( 90%- 95%) with other insects; however,ITS1 and ITS2 showed much variability.The analysis of base composition showed that ITS1 and ITS2 were more preferences for AT( contained 66.0% and 65.1% A + T,respectively).Comparison with the phylogenetic species revealed that ITS1 and ITS2 from E.onukii had rich polymorphic loci and ITS2 was more suitable for molecular identification of closely related species.国家自然科学基金(81171595