Study on the Growth Law of 23-year-old Castanopsis fissa Plantation

This paper studies the growth law of 23-year-old Castanopsis fissa planta- tion in Haiming forest farm （Pingguo County, Baise City, Guangxi Province） with the method of stem analysis. The results show that the average DBH, tree height and volume of the 23-year-old C. fissa plantation are 19.4 cm, 20.4 m and 0.326 1 m3 respectively. The fast growing periods of DBH, tree height and volume are the 2^nd- 8^th, 6^th-11^th, 6^th-23^nd year. Annual increment curve and average increment curve of volume haven＇t intersected in the 23 years, which means the 23-year-old C. fissais plantation has not reached the quantitative mature age. The growth equations of DBH, tree height and volume are D=1.713 3T-0.050 6T2＋0.000 7T2-1.942 2, H= 1.925 7T-0.039 8T2-2.489 0, V=-0.010 4T-0.002 4T2-4.084 8e^-0.005 T2＋0.012 7. Ac- cording to the volume regression equation of Castanopsis fissa, it will reach quanti- tative maturity in the 24~ year.

Analysis of Growth Laws of Leaves of Flue-cured Tobacco in Various Periods

The growth laws of leaves of flue-cured tobacco in different positions in various periods were summarized. The results showed that the growth speed of new leaves of flue-cured tobacco increased constantly until their growth was the fastest, and then it reduced irreversibly. The length and width of leaves in each position increased fastest when they grew depending on photosynthates instead of or- ganic compounds from functional leaves. Therefore, it is concluded that the increases of leaf length, width and area, and dry matter, and the peak of photosynthetic rate appear successively during the process of leaves of flue-cured tobacco, and the leaf area correction coefficient of leaves of flue-cured tobacco is related to the shape of leaves, which are affected by leaf position and the variety of flue-cured tobacco. The study can provide scientific reference for further research on the growth laws of leaves of flue-cured tobacco.

Study on Growth Laws of Marine Science and Technology Talents Based on the Perspective of Big Data

Based on the perspective of big data,the growth characteristics of marine science and technology talents were analyzed,and the growth of marine science and technology talents was divided into five periods:study period,adaptation period,growth period,promotion period and stability period.Moreover,some suggestions for the training of marine science and technology talents were proposed from the aspects of students,families,schools and society.

Study on Growth and Decline Law of Contagious Pleuro-pneumonia in Piglets

In order to establish the immune procedure for Actinobacillus pleuropneumonia and to determine the date for the first immunization on piglets, the growth and decline law of A. pleuropneumonia material antibodies in the piglets borne by cows inoculated with A. pleuropneumonia vaccines （type I, II, and VII） before delivery was detected. The results showed that type I, II, and VII maternal antibodies in piglets decreased gradually with the age growing overall, and was at the critical protection value at the ages of 42-50 days （type I） and 28 days （type VII）, lower than the quantification rate; and the antibodies all turned to be negative until the ages of 70 days （type I）, 60 days （type VII） and 35 days （type II）. The first immunization should be carried out at the age of 42-50 days using type I A. pleuropneumonia vaccine, and at the age of 28 days using type VII A. pleuropneumonia vaccine. However, type II A. pleuropneumonia maternal antibody had lower level and positive rate and could not well protect piglets, so the various A. pleuropneumonia vaccines differed in the date for the first immunization. In order to achieve a better immunization effect, A. pleuropneumonia vaccines with different valences should be further researched and developed.

The Quantitative Law of Network Information Growth

Based on the assumptions of ＂information transfer＂ and ＂information creation＂, this paper educes the multiplied growth mechanism of network information： that the gross quantity of network information （Im） is about n times as much as the quantity of real network information （Ir）. According to this theoretical model, we give a uniform explanation to all kinds of information growth models in existence, and put forward some proposals, such as ＂forbidding information transfer＂ and ＂building up the central information base＂, to control the repeated information flooding on the network and facilitate the full use of network information.

STRONG LAW OF LARGE NUMBERS AND GROWTH RATE FOR NOD SEQUENCES

In the paper,we get the precise results of Hájek-Rényi type inequalities for the partial sums of negatively orthant dependent sequences,which improve the results of Theorem 3.1and Corollary 3.2 in Kim(2006)and the strong law of large numbers and strong growth rate for negatively orthant dependent sequences.

The Evolutive Law concerning Relationship between Economic Growth and Farmers' Income Increase in Xinjiang since the Reform and Opening-up:An Empirical Analysis of the VEC Model

We select the per capita gross domestic product and rural residents' per capita net income in Xinjiang as the indicator variables to measure economic growth and farmers' income increase in Xinjiang, respectively. We establish the cointegration equation, the vector error correction (VEC) model, and use the impulse response function to conduct empirical analysis of the evolutive law concerning relationship between economic growth and farmers' income increase in Xinjiang during the period 1978-2010. The results show that there is a cointegration relationship between economic growth in Xinjiang and farmers' income increase; the former plays an important role in promoting the latter, following the evolutive law "first intensify, then abate, intensify again, and finally become stable". We put the following policy recommendations: providing preferential policies for farmers, scientifically and rationally guiding the transfer of rural labor; improving the function of agriculture, increasing the proportion of non-farm income; gradually bridging the widening income gap between urban and rural areas, coordinating urban and rural development.

遵循技术技能人才成长规律 加强能工巧匠和高技能人才培养

全国教育大会强调“大力培养大国工匠、能工巧匠、高技能人才”,对塑造我国未来职业教育发展方向和人才培养模式具有重要的指导意义。培养能工巧匠和高技能人才应明确一些相关基本概念,如职业社会化、工作、“专长”与职业性技术等。能工巧匠的成长遵循技术技能人才成长规律,需要夯实校企合作基础,加强基于工作的学习,提高职业学习过程设计的科学性和有效性。

基于FP-growth算法的中医抗病毒方剂配伍规律探索

通过对中医抗病毒经典方剂文献的分析,挖掘其中蕴含的宝贵经验和配伍规律信息,为临床合理用药提供客观依据,并为抗病毒中药新药研发提供关键线索和思路,具有重要的研究价值和意义。在该类研究中,如何高效地分析抗病毒药物使用频数及中药药物间关联规则,是方剂配伍规律研究的一个基础性核心问题。针对这一问题,本研究基于不产生候选项集的FP-growth算法,对经过预处理后的961首传统抗病毒类中药方剂配伍规律信息做探索性研究。研究中,首先利用数据集构建FP树;之后建立频繁项集规则,并提取出FP树中蕴含的关联规则;最后将抗病毒中药方剂按剂型（汤、丸、膏和锭）分别进行频数和关联规则分析。研究结果表明,在算法应用研究方面,FP-growth算法性能优良,其在大规模方剂数据集筛查挖掘中具有较强的泛化性和鲁棒性;在传统抗病毒中药方剂配伍规律研究方面,汤剂、丸剂、膏剂和锭剂4种剂型的主要用药与核心药物组合存在明显差异,验证了其按剂型制剂的意义和必要性。

Analytically Derived Wind Wave Growth Relations

By the use of the 3/2 power law presented by Toba combined with the significant wave energy balance equation for wind wave, wind wave growth at a limited fetch is analytically investigated. The new wind wave growth relations (WWGRs) are analytically derived with sheltering coefficient and wind drag coefficient as parameters. The geometrical average of observational values of sheltering coefficient and the arithmetic average of observational values of wind drag coefficient are applied to determine the new WWGRs. Comparisons with existing empirical WWGRs are made.

Mobile user forecast and power-law acceleration invariance of scale-free networks

This paper studies and predicts the number growth of China＇s mobile users by using the power-law regression. We find that the number growth of the mobile users follows a power law. Motivated by the data on the evolution of the mobile users, we consider scenarios of self-organization of accelerating growth networks into scale-free structures and propose a directed network model, in which the nodes grow following a power-law acceleration. The expressions for the transient and the stationary average degree distributions are obtained by using the Poisson process. This result shows that the model generates appropriate power-law connectivity distributions. Therefore, we find a power-law acceleration invariance of the scale-free networks. The numerical simulations of the models agree with the analytical results well.

From Sequential to Parallel Growth of Cities： Theory and Evidence from Canada

This paper examines city growth patterns and the corresponding city size distribution evolution over long periods of time using a simple New Economic Geography(NEG) model and urban population data from Canada. The main findings are twofold. First, there is a transition from sequential to parallel growth of cities over long periods of time: city growth shows a sequential mode in the stage of rapid urbanization, i.e., the cities with the best development conditions will take the lead in growth, after which the cities with higher ranks will become the fastest-growing cities; in the late stage of urbanization, city growth converges according to Gibrat′s law, and exhibits a parallel growth pattern. Second, city size distribution is found to have persistent structural characteristics: the city system is self-organized into multiple discrete size groups; city growth shows club convergence characteristics, and the cities with similar development conditions eventually converge to a similar size. The results will not only enhance our understanding of urbanization process, but will also provide a timely and clear policy reference for promoting the healthy urbanization of developing countries.

Formation and Growth Kinetics of Intermediate Phases in Ni-Al Diffusion Couples

Formation and growth of the intermediate phases in the Ni-Al diffusion couples prepared by pouring technique were investigated. Electron probe microanalysis, scanning electron microscopy and X-ray diffraction were used to characterize the product phases in the joints. The results show that two intermediate phases form in the sequence of NiAl3 and Ni2Al3 during solidification. After annealed, Ni2Al3 and NiAl3 still exist in the joints of the couples. The reasons for the formation of Ni2Al3 and NiAl3, as well as the absence of NiAl, Ni5Al3 and Ni3Al were discussed, respectively. The growth kinetics of both product phase layers indicates that their growth obeys the parabolic rate law. The activation energies and frequency factors for NiAl3 and Ni2Al3 phases were also calculated according to the Arrhenius equation.

济阳坳陷常规探明石油地质储量增长规律及未来10年增储趋势

济阳坳陷常规石油领域一直是胜利油田勘探开发主战场,至今已经历了60余年勘探开发,整体进入成熟勘探阶段,但每年仍具有较大的增储规模,这与传统认为的含油气盆地探明石油地质储量增长趋势不一致。济阳坳陷常规探明石油地质储量增长规律如何?未来能否继续保持较强的增储态势?其主要的增储领域有哪些?这些事关胜利油田勘探决策的重要问题亟需研究明确。通过梳理济阳坳陷勘探历程,分析其地质特征、资源条件、探井工作量投入、理论技术、资源序列等勘探要素,揭示济阳坳陷常规石油勘探发现规律,运用“帚状”模型预测法、资源探明速率法等方法预测常规探明石油地质储量增长趋势,结合主要增储领域剖析,明确济阳坳陷常规石油未来增储规模及有利方向。结果表明:济阳坳陷复杂的地质特征、较为雄厚的剩余资源基础决定其勘探对象的多样性、勘探过程的曲折性和勘探历史的长期性;在保证相对稳定的探井工作量投入,持续开展勘探理论及关键技术的攻关,保持相对合理的资源序列等条件下,济阳坳陷常规石油仍能保持较长时期的稳定增储;在当前经济技术条件及勘探投入相对保障的情况下,未来10年济阳坳陷仍可贡献常规探明石油地质储量2.5×10^(8)t左右;指出济阳坳陷新近系河道砂岩油藏、沙四段上亚段—沙三段岩性油气藏等成熟领域仍是稳定增储的压舱石,孔店组—沙四段下亚段深层领域是重要的规模增储领域,前古近系潜山领域是富集高产的有利方向。今后,应紧密跟踪非常规与新能源领域的勘探进展,对济阳坳陷常规探明石油地质储量增长规律及增储趋势等研究结果进行不断地完善和修正,以期更符合油田勘探发展态势,指导油田勘探决策。

新时代年轻干部成长研究:现状与展望

建设一支贯彻习近平新时代中国特色社会主义思想、符合新时期好干部标准、忠诚干净担当、数量充足、充满活力的高素质专业化年轻干部队伍,事关党的事业发展后继有人和国家长治久安。文章以年轻干部的相关政策文件和文献为基础,梳理了促进年轻干部成长的相关政策举措,并对年轻干部的成长规律进行了总结:干部能力素质必须符合中国特色社会主义伟大事业的发展需要;干部能力素质的提升是一个由量变到质变的发展过程,个人和组织都负有重要责任;理论学习是基础,实践锻炼是关键。从激励机制来看,应坚持激励与约束并重。然而,部分年轻干部的发展存在以下四点困境:佛系心态,为官不为;眼高手低,期望过高;价值观念偏差,公共服务动机缺失;培养机制缺位,干事创业热情不足。因此,要建立一个涵盖培养主体、选任理念、培养体系、管理机制的培养系统。未来要进一步推进对年轻干部的概念指向、成长规律、能力素质、方法论、战略需求导向这五方面的研究。

世界一流企业的成长规律

加强探索符合国情的世界一流企业成长规律,处理好管理能力与企业成长之间的关系,对于促进中国企业跻身世界一流企业行列至关重要。文章探讨了世界一流企业成长规律中的几个关键要素:以世界级效率运营,达到竞争对手无法企及的效率高度;以胸怀世界的使命和文化价值观驱动自身组织,通过解决世界级问题来服务世界和服务社会大众,最大程度激发员工的创造力与企业发展潜力;积极建构跨国公司身份,适时从国内主导地位转向建立和持续拓展国际影响力;以适应性韧性拥抱高不确定性,能承受经济波动中的失败与危机,通过从错误中汲取经验来实现可持续成长。面对百年未有之大变局,中国企业应切实履行自身职责使命,不断提升技术能力和管理水平,积极参与国际竞争,提高抵御外部风险的能力,努力成为世界一流企业。

On the Functional Empirical Process and Its Application to the Mutual Influence of the Theil-Like Inequality Measure and the Growth

We set in this paper a coherent theory based on functional empirical processes that allows to consider both the poverty and the inequality indices in one Gaussian field in which the study of the influence of the one over the other is done. We use the General Poverty Index (GPI), that is a class of poverty indices gathering the most common ones and a functional class of inequality measures including the Entropy Measure, the Mean Logarithmic Deviation, the different inequality measures of Atkinson, Champernowne, Kolm and Theil called Theil-Like Inequality Measures (TLIM). Our results are given in a unified approach with respect to the two classes instead of their particular elements. We provide the asymptotic laws of the variations of each class over two given periods and the ratio of the variation and derive confidence intervals for them. Although the variances may seem somehow complicated, we provide R codes for their computations and apply the results for the pseudo-panel data for Senegalwith a simple analysis.

中国东北东部山区19年生脂松的引种效果

为评价我国东北东部山区脂松(Pinus resinosa)的引种效果,探究脂松在各引种栽培区的生长适应性,以3个不同试验区(帽儿山、露水河、湾甸子)19年生的脂松人工林为研究对象,通过外业调查和树干解析获取生长数据,分析树高、胸径和材积生长过程。结果表明:引种到东北东部山区3个试验区的脂松均能正常生长,而且生长规律基本一致;胸径随着年龄的增大呈S型曲线增长,树高和材积生长整体呈J型曲线增长;5年生脂松树高生长速率为0.17~0.20 m/a,树高从生长第6年开始进入速生期,6~19年生脂松的树高生长速率达0.53~0.66 m/a;脂松胸径起始连年生长量小,之后随着林龄的增加胸径快速增大,林龄达到17 a时,脂松胸径生长开始缓慢下降;林龄1~6 a的脂松材积增长缓慢,且各试验区相差不大,随着林龄的增加迅速增长,露水河脂松材积生长优势逐渐明显。露水河试验区19年生脂松平均树高、胸径和材积表现最好。因此,引种至我国东北东部山区的脂松生长适应性良好,连年生长量大,生长速率快,可以作为优良常绿针叶树种栽培。

缺口部件极端不规则裂纹前沿生长规律研究

真实的、极端不规则裂纹前沿生长路径预测直接影响结构剩余疲劳寿命评估的准确度。以与工程结构在几何上局部最为相似的缺口部件为裂纹受体,构建了一种不规则裂纹前沿应力强度因子(Stress Intensity Factor,SIF)分布规律研究方法。首先,利用高分辨率样条曲线表征不规则裂纹前沿上由于凸区、凹区以及小曲率半径引起的局部曲率变化;然后,基于自适应网格划分技术结合子模型法迭代模拟不规则裂纹前沿生长迹线,得到不规则裂纹扩展规律;最后,通过算例验证Franc3D计算裂纹扩展驱动力的可靠性,将预测得到的裂纹几何与试验测得的裂纹位置、尺寸等信息进行比较。结果表明,预测得到的裂纹前沿迹线与真实轨迹基本重合,沿任意路径SIF数值几乎相等,且裂纹扩展寿命预测值与试验寿命极其接近,误差只有2.4%。

新疆杨树和柳树上壳囊孢属真菌的致病性分析

【目的】研究分离自杨树(Populus spp.)与柳树(Salix spp.)上壳囊孢属(Cytospora spp.)真菌的致病性。【方法】将前期鉴定的13种壳囊孢属真菌的代表菌株,通过离体枝条烫伤法将菌饼接种于新疆杨(Populus alba)和白柳(Salix alba)上,测量病斑面积并比较不同种壳囊孢属真菌的致病性。【结果】菌株2067-3(Cytospora nivea)和1579-1(C.chrysosperma)在新疆杨和白柳上的致病性最强,病斑面积最高分别为6021.30和5661.87 mm^(2)。选择5种分离自杨树与柳树的壳囊孢属真菌,分别接种至新疆杨与白柳的离体枝条上,新疆杨离体枝条的病斑面积明显大于白柳离体枝条的病斑面积;选3种分离自杨树的壳囊孢属真菌与5种分离自柳树的壳囊孢属真菌交互侵染后均能致病,并且致病性显著差异。分离自柳树的菌株2191-2(C.leucostoma)、1010-1(C.salicacearum)在杨树上的致病性高于分离自柳树的壳囊孢属真菌。【结论】分离自杨树和柳树的13种壳囊孢属真菌均能在杨树和柳树上致病,且致病性存在显著性差异。