Analysis of Factors Influencing Comprehensive Productivity of Agriculture in Henan Province on the Basis of Grey Correlation

According to the data from Henan Statistical Yearbook from 2002 to 2008, from production capital, production conditions, labour inputs and financial support, this paper selects 11 variables influencing comprehensive productivity of agriculture in Henan Province. Through calculation and analysis of grey correlation of variables and comprehensive productivity of agriculture, this paper determines the impact of different variables on comprehensive productivity of agriculture. The results show that the agricultural capital has become the most important factor influencing comprehensive productivity of agriculture in Henan Province, while the impact of production conditions, labour inputs and financial support on comprehensive productivity of agriculture in Henan Province diminishes in turn. Corresponding countermeasures and suggestions are put forward to promote the sustainable development of comprehensive productivity of agriculture in Henan Province as follows: strengthen agricultural financial system building, and ensure agricultural production expenditure; scientifically arrange allocation of agricultural resources, and improve agricultural production conditions; carry out training of agricultural skills, and elevate the quality of agricultural labour forces; increase financial expenditure for agricultural production, and optimize financial expenditure structure.

Occurrence Factors and Comprehensive Prevention and Control of Chinese Rose Black Spot(Actinonema rosae)

In addition to conventional techniques,the prevention and control of Chinese rose black spot(Actinonema rosae)should be strengthened in the management of Chinese rose.The occurrence of Chinese rose black spot is closely related to plant residues,rainfall,cultivation conditions and varieties.On the basis of understanding the symptoms and occurrence regularity of Chinese rose black spot,combination measures of agricultural and chemical prevention and control should be taken.

Limit equilibrium method(LEM) of slope stability and calculation of comprehensive factor of safety with double strength-reduction technique

When the slope is in critical limit equilibrium(LE) state, the strength parameters have different contribution to each other on maintaining slope stability. That is to say that the strength parameters are not simultaneously reduced. Hence, the LE stress method is established to analyze the slope stability by employing the double strengthreduction(DSR) technique in this work. For calculation model of slope stability under the DSR technique, the general nonlinear Mohr–Coulomb(M–C) criterion is used to describe the shear failure of slope. Meanwhile, the average and polar diameter methods via the DSR technique are both adopted to calculate the comprehensive factor of safety(FOS) of slope. To extend the application of the polar diameter method, the original method is improved in the proposed method. After comparison and analysis on some slope examples, the proposed method's feasibility is verified. Thereafter, the stability charts of slope suitable for engineering application are drawn. Moreover, the studies show that:(1) the average method yields similar results as that of the polardiameter method;(2) compared with the traditional uniform strength-reduction(USR) technique, the slope stability obtained using the DSR techniquetends to be more unsafe; and(3) for a slope in the critical LE state, the strength parameter φ, i.e., internal friction angle, has greater contribution on the slope stability than the strength parameters c, i.e., cohesion.

Factors Affecting Listening Comprehension

this article generalized factors that affect listening comprehension. It stated that both internal and external factors are important in listening comprehension.

Comprehensive Evaluation on the Regional Economy of Commodity Grain Base in Heilongjiang Province Based on Factor Analysis Method

Taking a total of 13 areas in Heilongjiang commodity grain base as the research objects,9 indices are selected,which are regional GDP(X1),per capita GDP(X2),total value of tertiary industry(X3),financial revenue(X4),urban fixed assets investment(X5),average salary(X6),gross industrial output value(X7),total output value of farming,forestry,husbandry and fishing(X8),and retail sales of social consumer goods(X9).Based on this,evaluation index system of regional economy is established.According to the 2006-2008 Heilongjiang Statistical Yearbook,average values within 3 years are used as analytical data.Factor Analysis Method is adopted to establish regression model and to carry out comprehensive analysis.Result shows that Heilongjiang commodity grain base has extremely uneven regional economic development in different areas.According to the score order and actual situation,the 13 areas are divided into 4 types.The first and second types are Harbin and Daqing,respectively.The third type is Qiqihaer,Suihua,Mudanjiang and Jiamusi.And the forth type is Jixi,Shuangyashan,Heihe,Yichun,Qitaihe,Hegang and Daxinganling.Suggestions for the development of these areas are put forward.

Comprehensive Evaluation of Processing Quality of Tibetan Native Hulless Barley Variety by Factor Analysis

The purpose of this study was to explore the quality of the Tibetan native hulless barley variety in depth and to evaluate the characteristics of its processing quality using ratio analysis.For this study,10 native barley varieties were chosen with the detection of 24 quality indexes in order to build a system of comprehensive evaluation.The results of the factor analysis indicated that seven common factors with an eigenvalue greater than 1 were extracted,cumulatively accounting for 96.21%of the total variance.The first common factor,including ASP,GLU,SER,GLY,ARG,TYR and CYS contents,accounted for 33.82% of the variance.The second common factor,including ash,the total starch,soluble fiber,VB_(3),Cu,Mn,Na and beta-glucan contents,accounted for 19.46%of the variance.The third common factor,including the total dietary fiber,α-VE,K,Zn and glutelin.The fourth common factor,including B,Ba and prolamin,explained the barley starch character of the rheological property.The fifth common factor included crude fiber.The sixth and the seventh common factors did not account for a substantial amount of variance.According to the comprehensive evaluation model,the score consequence was as the following:Zangqing25>Pengnaigabu>Lhasa changhei>2004Qing21>Lhasa duanbai>Liangamu>Zhikonggaxia>lianmubai>Jiangreejiu>Longzihei.

Dividing the Expropriated Areas Based on Multi-Factor Comprehensive Evaluation—A Case Study of Gongcheng Yao Autonomous County

In recent years, with the rapid development of urbanization in China, land acquisition work is particularly important. The division of expropriated area is the primary factor to be considered when evaluating the comprehensive land price of expropriated area. Reasonable division can help to improve the scientific and applicability of the comprehensive land price of the region. How to maximize the protection of farmers’ rights and interests by the division of land requisition is an urgent problem to be solved. Taking Gongcheng Yao Autonomous County as an example, this study adopted the multi-factor comprehensive evaluation method to evaluate the division of land requisition in this area, and carried out the corresponding spatial analysis and data processing based on GIS technology. Gongcheng Yao Autonomous County was divided into levy areas, and the Delphi method was used to screen the impact factors and determine the weight of the levy areas. Reasonable division of land requisition area can provide references for land requisition area, make it more scientific and reasonable, and protect the rights and interests of farmers.

Effect of Stereoscopic Comprehensive Therapy of Zhuang Medicine on Inflammatory Factor IL-6 in Patients with Rheumatoid Arthritis

Objective:To study the effect of Stereoscopic Comprehensive of Therapy Zhuang Medicine on IL-6 in serum of patients with rheumatoid arthritis.Methods:Sixty rheumatoid arthritis patients who met the inclusion criteria were selected and randomly divided into a control group and a treatment group using a random number table.Among them,30 cases in the control group were treated with Western medicine,and 30 cases in the treatment group were treated with Western medical and Stereoscopic Comprehensive Therapy of Zhuang Medicine.The observation period was 8 weeks.Results:After 8 weeks of treatment,the level of IL-6 in the treatment group and the control group decreased,and the treatment group was better than the control group(P<0.05).Conclusion:The Stereoscopic Comprehensive of Zhuang Medicine can reduce the level of IL-6 in the serum of patients with rheumatoid arthritis,and has a good regulating effect on the inflammation of rheumatoid arthritis.

Evaluation of Comprehensive Agricultural Production Capacity Based on Factor Analysis:A Case Study of Hunan Province

Based on the basic connotation of comprehensive agricultural production capacity,this article establishes the comprehensive agricultural production capacity indicator system on the basis of statistics. This indicator system consists of 5 parts ( input scale of factors,output scale of factors,output rate of factors,ability to resist disaster and ensure production,and modern operation level) and 14 specific indicators. Based on factor analysis method,we use this indicator system to conduct systematic empirical analysis of the level of comprehensive agricultural production capacity in 14 cities and prefectures of Hunan Province. The results show that although the overall level of comprehensive agricultural production capacity in Hunan Province tends to grow continuously and steadily,there are significant inter-regional differences in the level of comprehensive agricultural production capacity; in terms of the level of comprehensive agricultural production capacity,there is great room for improvement. Finally the following policy recommendations are put forward: strengthening balanced regional development and improving the overall level of comprehensive agricultural production capacity; strengthening the building of land carrying capacity; strengthening the building of agricultural ecological balance; strengthening the building of the scientific and technological support capacity.

Performance Evaluation of Urban Comprehensive Carrying Capacity of Harbin, Heilongjiang Province in China

Urban comprehensive carrying capacity is an important guarantee and external representation of regional sustainable development. Based on urban comprehensive carrying capacity, this paper constructed a performance evaluation index system of urban comprehensive carrying capacity, and used entropy method, urban comprehensive carrying capacity measurement model and urban sustainable development model to measure spatial and temporal comprehensive carrying capacity of Harbin City in Heilongjiang Province from 2012 to 2017. The results show that: 1) index weight analysis suggested the regional development mode in Harbin still followed an epitaxial development mode, which pursued the expansion of scale and the growth of total amount of regional development, neglecting the effective utilization of resources and the improvement of structural benefits. 2) In the pressure system, the index of resource support has dropped sharply. The index of environmental capacity and social progress has risen circuitously, while the degree of agglomeration and the value of transportation facilities have risen steadily;in the pressure system, the index of population development and economic growth tended to fluctuate, while energy consumption and environmental pollution showed a more synchronous change in characteristics, and the livable demand remained at a high level. 3) The carrying capacity index of resources and environment in Harbin has been declining, and the acquired carrying capacity index fluctuated. The long-term regional development model has severely impaired the carrying capacity of resources and environment. 4) The comprehensive carrying capacity of Harbin has clear spatial differentiation characteristics. Finally, the paper proposes that location conditions, economic development level, government regulation, and science and technology are the main factors influencing the spatial differentiation of urban comprehensive carrying capacity.

Regional ecological security anddiagnosisof obstaclefactors in underdevelopedregions：acasestudy in Yunnan Province,China

In order toclarify regional ecological security status and formation mechanism of regional ecological security barriers in underdeveloped regions of China,we took Yunnan province as a case to evaluate its regional ecological security by using entropy matter-element model,comprehensive index and GIS spatial method,and we diagnosed itsobstacle factors through obstacle degree model. We found a low overall level of regional ecological security in Yunnan. Only Kunmingfell into the good level, 68% of the regions were below the critical safe level. For the vast majority of regions in Yunnan, their regional ecological security was unstable. The indexes related to per capita resources, geological and topographyenvironment, economic, and technologywere at the unsafe or dangerous level.The indexes related to urban expansion, level of income, cultivated land quality were at the level of critical safety. The indexes concerning urban management capacity, airqualityand waterenvironment were at the good or ideallevel. Yunnan's regional ecological security was not good due to natural obstructive environment itself, simultaneously lower backward economic and social level restricted the ability of ecological security response to manage ragile ecological environment. The results of the composite index wereroughly consistent with those of the entropy weight matterelement model. The mean values of the classification index,from high to low, were: the state index>the response index>the pressure index. The state index and the response index had a significant mutual promotion to each other.The regions with good composite index, state index and response index mainly distributed in the central regions of Yunnan Province. Spatial autocorrelation of regional ecological security level in Yunnan was not obvious. Water resources, economic and social development were main obstacle factors of the regional ecological security.When distinguishing with obstacle type, Kunming belonged to natural ecological environment barrier type, while other regions belonged to economic and social barrier type.

Main Controlling Factors and Dominant Reservoir Series Analysis of Es_3 in the Qibei Area of Qikou Sag

Based on analysis of geophysical data such as core observation, rock slices identification, physical property, scanning electron microscope, X-ray diffraction, logging data etc., 16 factors of sedimentation, diagenesis, fluid pressure, and their relationships with reservoir physical property were analyzed, and the results indicate sedimentation is the internal factor controlling the reservoir property, diagenesis is the external and final decisive factor and abnormal fluid pressure is an important factor preserving the deep reservoir property. Quantitative characterization of diagenesis indicates that compaction and dissolution are more important than cementation and they respectively cause porosity change of-23.6% and 7.7% and -6.2%. Through optimizing 11 main controlling factors and constructing reservoir evaluation index （REI） according to the hierarchical cluster and principal component analysis, reservoir classification standard was established and reservoirs were divided into four classes. The studies show that Es~ SQ4 consists mainly of class I and II, while Es~ SQ6 is mainly of class III and II; the favorable zone is the north and south slope of Qibei sub-sag and the Liujianfang fault-nose. The successful application of the quantitative and comprehensive evaluation in the Qibei area verifies the advanced, practicable method of less artificial factor is suitable for the low porosity and permeability reservoir.

Research on quality changes and influencing factors of groundwater in the Guanzhong Basin

This paper studies the distribution features, the chemical elements beyond standards and the influencing factors of shallow groundwater quality in the Guanzhong Basin through the data monitored in the last twenty years. The final purpose is to comprehensively evaluate the divisions of groundwater quality in the Guanzhong Basin. Results show that, the groundwater quality is in good shape, and suitable for drinking. Drinking accounts for 16.02% of the total, most of which are distributed in the lubotan of Weibei. Some come from loess plateau of Qian-Liquan County and some are generated by the industrial pollution of Xingping City. Materials exceeding standards include chloride, sulfate, three nitrogen, fluoride, manganese, iron, hexavalent chromium and so on. The main factors influencing the quality of shallow groundwater include groundwater exploitation, natural background value of special components and precipitation, among which the groundwater exploitation poses the greatest impact. The depth of water is positively correlated with the concentration of sulfate, nitrate and total hardness.

An Exploratory Study of E-Business Success Factors

E-business success factors are Important for traditional enterprises to implement e-business. This topic is attracting more and more researchers to study. This paper makes an exploratory study on the factors influencing e-business success. Firstly, based on the literature review, 52 factors are suggested. Secondly, two rounds of survey with Delphi method are conducted. Qualitative and quantitative analysis are used to identify 57 factors. This is the foundation of empirical study.

数字服务贸易国际竞争力比较研究

随着科技发展水平的不断提高,数字技术越来越广泛地被运用到生产生活的各个领域。数字贸易作为新型贸易模式,引领着贸易发展的方向。通过考察数字技术方式交付的数字服务贸易,基于因子分析法构建数字服务贸易国际竞争力评价的综合评价指标,利用2014—2018年OECD成员国和金砖国家为样本,比较分析40个样本国家综合因子得分和排名。结果显示:发达国家在数字服务贸易格局中竞争力较强,占据主导地位;发展中国家出口竞争力较弱,处于不利位置;中国数字服务贸易国际竞争力提升十分迅速,但在数字基础设施建设和政策支持环境等方面处于劣势,进而针对性地提出政策建议。

各向异性Kelvin泡沫胞元高径比对其流动传热特性的影响

飞行器热管理系统中所用的高孔隙率泡沫材料具有质量轻、比表面积大等优点,孔隙尺度几何参数的优化设计对有效提升综合传热性能、降低结构质量至关重要。以各向异性Kelvin泡沫胞元为研究对象,采用混合热格子Boltzmann方法以及多GPU加速技术,实现了同时考虑泡沫骨架导热和多胞元孔隙尺度强迫对流换热的共轭传热数值模拟。在上述基础上,分别选取了Re=10、100、1000计算条件,开展了不同胞元高径比(H/D=0.5、0.75、1.0、1.5、2.0)对其流动传热特性的影响规律研究。结果表明,在不同Re条件下,随着各向异性Kelvin泡沫H/D的减小,其泡沫内部的流动阻力及努塞尔数均增大,且随着Re的增大,对流换热的作用增强,H/D的影响也更为明显。此外,相比于流动阻力,结构传热性能受H/D的影响变化速率更大,由此造成综合传热因子(j/f^(1/3))与H/D成反比关系,即减小Kelvin胞元H/D可有效提高泡沫结构的综合传热性能。

非小细胞肺癌患者衰弱特点及其影响因素

目的对表皮生长因子受体(EGFR)突变阳性、非鳞状不可手术Ⅲ期非小细胞肺癌(NSCLC)老年患者序贯化放疗后奥希替尼维持治疗和Ⅳ期NSCLC老年患者局部立体定向放疗联合奥希替尼维持治疗后的衰弱状况进行评估,并分析其影响因素。方法回顾性分析2020年6月至2021年12月山西省肿瘤医院收治的238例老年Ⅲ~Ⅳ期EGFR突变阳性、非鳞状NSCLC非手术患者的临床资料,对连续3个月奥希替尼靶向维持治疗后的疼痛数字评分(NRS)、深静脉血栓量表(Caprini)、抑郁量表(PHQ-9)、老年8项筛查工具(G8)进行评估,并依据G8评分将患者分成衰弱组(n=197)和非衰弱组(n=41)。采用SPSS 19.0统计软件进行数据分析。根据数据类型,分别采用t检验、χ^(2)检验或Fisher确切概率法检验进行组间比较。采用logistic回归分析衰弱的影响因素。结果衰弱组高龄、Caprini评分高危及以上、共病患者比例高于非衰弱组;合并静脉血栓栓塞(VTE)患者比例低于非衰弱组;抑郁评分、NRS评分、胱抑素C水平高于非衰弱组;G8评分低于非衰弱组,差异均有统计学意义(均P<0.05)。logistic回归分析显示,年龄(OR=1.395,95%CI 1.133~1.717)、抑郁(OR=1.525,95%CI 1.290~1.803)、疼痛(OR=7.908,95%CI 2.301~27.181)、共病(OR=5.490,95%CI 1.181~25.522)、合并VTE(OR=7.530,95%CI 1.022~55.501)及胱抑素C(OR=1.215,95%CI 1.084~1.361)是老年不可手术Ⅲ~Ⅳ期EGFR突变阳性NSCLC患者衰弱的危险因素。结论EGFR突变阳性非鳞状不可手术Ⅲ~Ⅳ期NSCLC老年患者衰弱率高,存在营养流失、疼痛、躯体活动和认知能力受损、负性情绪、共病等老年综合征及肾功能损伤,快速识别其影响因素并采取有效的康复治疗干预措施对患者有积极意义。

计及气象因素与分时电价影响的综合能源系统负荷调控策略研究

用能高峰时段,综合能源系统多元负荷受气象因素影响,使其用能需求量短时持续上升,导致供需矛盾加剧;同时,综合能源系统多能耦合转换与蓄放单元的电驱动特点(如冰蓄冷空调、电制冷制冰)致使其用能成本受分时电价影响进一步增加。以供冷季用能高峰时段综合能源系统冷-电供需调控为研究对象,提出一种包含冷负荷需求自身调节与供冷功率主动控制的两阶段递进式调控策略,旨在实现多能供需平衡空间的拓展与用能成本的降低。基于模糊C均值聚类并考虑综合气象因素与分时电价的影响,选取调控时段;在第1阶段构建了温-湿舒适度最佳与冷能需求量最低的多目标负荷调节模型,在第2阶段提出了用能成本最低和运行能耗最小的多目标供冷输出功率主动控制策略;选取某校园综合能源系统实际运行数据进行算例仿真,采用ε-约束法以及多维偏好线性规划方法进行多目标求解,并基于用能舒适度变化的运行能耗、用能成本等指标,对比分析负荷需求在用能高峰时段调控优化前后的效果。结果表明,所提方法在满足用能舒适度的同时,能削减约13%的负荷需求,并降低约1.9%系统用能成本,有效缓解多能供需矛盾,增强系统运行的灵活性。