“Extreme utilization” theory and practice in gas storages with complex geological conditions

Based on more than 20-year operation of gas storages with complex geological conditions and a series of research findings, the pressure-bearing dynamics mechanism of geological body is revealed. With the discovery of gas-water flowing law of multi-cycle relative permeability hysteresis and differential utilization in zones, the extreme utilization theory targeting at the maximum amount of stored gas, maximum injection-production capacity and maximum efficiency in space utilization is proposed to support the three-in-one evaluation method of the maximum pressure-bearing capacity of geological body, maximum well production capacity and maximum peak shaving capacity of storage space. This study realizes the full potential of gas storage(storage capacity) at maximum pressure, maximum formation-wellbore coordinate production, optimum well spacing density match with finite-time unsteady flow, and peaking shaving capacity at minimum pressure, achieving perfect balance between security and capacity. Operation in gas storages, such as Hutubi in Xinjiang, Xiangguosi in Xinan, and Shuang6 in Liaohe, proves that extreme utilization theory has promoted high quality development of gas storages in China.

Anger as a Predictor of Active Public Protest： Extended Application of the Situational Theory of Publics to a Health Crisis

This study applies the situational theory of publics （STP） to a health crisis by exploring the effect of anger on public behavior. The results of a survey administered on the case of the candlelight rallies on the U.S. beef imports in South Korea in 2008 demonstrated that involvement, problem recognition, and constraint recognition predicted communication behaviors as well as various issue-related online and offline behaviors. In addition, anger was found to be a significant driving force for publics to perform the behaviors. The segmented publics showed significantly different levels of anger, information processing and seeking, online behaviors, and participation in the candlelight rallies

On the Context Vein of“Competence”and Its Generating Mecha­nism-based on the Perspective of Situational Learning Theory

“Key competence”has become a hot vocabulary in educational reform in recent years.However,the essential connotation and specific generation mechanism of“competence”as its basic concept are still far from clear,and often controversial due to vague expressions.The rise of the concept of“key competence”undoubtedly originated in the West,but in the context of Chinese,its meaning has changed significantly.By analyzing the origin and evolution of the concept of“competence”in the Western social context and the concept from“quality”to“competence”in the Chinese social context,we can deeply understand the essence of the concept of“competence”and further clarify the specific generation mechanism of“competence”and its relationship with education.Analyzing the formation of competence based on situational learning theory emphasizes the occurrence of competence through participation in situational activities,the development of learning courses and identity consultation,which can provide some inspiration for the formation of competence.

Present Situation and Benefit Analysis of the Straw Recycling in Southwest China

Currently,sustainable agricultural development in China is facing some big challenges of how to promote the present developing pattern,to lengthen material transformation chain,to increase the utilization rate of material and energy in agricultural system and to form a healthy agricultural ecological circulation system.China is a major country producing crops and straws.Both high-efficient utilizing pattern of straw and technological system are needed urgently.According to the field survey,we point out the status of straw utilization and the main recycling pattern in typical farming areas in Sichuan,China through the literature review and data collection.Based on the statistical analysis,the economic,environmental and social benefits of each utilization way are analyzed,and the methods and measures are proposed in order to promote recycling utilization of the straw in Sichuan farming area,and to offer theoretical guidance for energy saving,food safety,and pollution control.

“Extreme utilization”development theory of unconventional natural gas

In the process of unconventional natural gas development practice,the"extreme utilization"concept that focuses on"continuously breaking through the limit of development technology"is gradually formed,and supports the scale benefit exploration of unconventional gas in China.On this basis,the development theory of"extreme utilization"is proposed,its theoretical connotation together with development technologies of unconventional natural gas are clarified.The theoretical connotation is that,aiming at"extreme gas reservoirs","extreme techniques"are utilized to build subsurface connected bodies,expand the discharge area,and enlarge the production range,to obtain the maximum single-well production,extreme recovery,and eventually achieve the"extreme effect"of production.The series of development technologies include micro/nano-scale reservoir evaluation,"sweet spot"prediction,unconventional percolation theory and production capacity evaluation,optimization of grid well pattern,optimal-fast drilling and volume fracturing,and working regulation optimization and"integrated"organizing system.The"extreme utilization"development theory has been successfully applied in the development of unconventional gas reservoirs such as Sulige tight gas,South Sichuan shale gas,and Qinshui coalbed methane.Such practices demonstrate that,the"extreme utilization"development theory has effectively promoted the development of unconventional gas industry in China,and can provide theoretical guidance for effective development of other potential unconventional and difficult-to-recovery resources.

Engine Selection Based on Utility Theory

Since an engine is seen as the″heart″of an airplane,the objective and scientific evaluation of it is significant to ensure normal operation of airlines.Aiming at the limitations of current studies on selecting engines,a quantitative comprehensive evaluation system of engine options was established and an optimization model based on the utility theory and analytic hierarchy process(AHP)was proposed.Considering the judgement of different customers on the balance between income and risk,the utility of each evaluation index was determined by utilizing the piecewise utility function.The AHP was used to analyze individual demands of customers.Finally,the optimal scheme was selected through calculating the weighted utility value.According to the actual needs of a domestic airline,the utility of three engine options was calculated.The results showed that the value of risk factor can be set to determine the selection scheme based on the degree of preferences(conservative type,neutral type or adventurous type).

Application of Epistemic Utility Theory to Satisfactory Optimization

Satisficing control remains an important concept in decision making. In this paper, a new epistemic utility satisficing control theory is proposed for a new model of complex CMMO （ constrained multi-objective multi degree-of-freedom optimization） system. As well, an epistemic utility function is developed and used to adjust the feasible region of soft constraints. The theory proved in this paper indicates that the utility function not only expresses the subjectivity of the original satisfactory-degree function, but also takes the cost of searching for a solution into account. Thus, the satisfactory-degree function can be adjusted and its rationality can be validated. This theory contributes an analytical method to the inverse satisfactory optimization problem. The findings indicate that this theory has good convergence and outcomes desired for satisfactory-degree functions.

An Alternative Approach to the Lottery Method in Utility Theory for Game Theory

In game theory, in order to properly use mixed strategies, equalizing strategies or the Nash arbitration method, we require cardinal payoffs. We present an alternative method to the possible tedious lottery method of von Neumann and Morgenstern to change ordinal values into cardinal values using the analytical hierarchy process. We suggest using Saaty’s pairwise comparison with combined strategies as criteria for players involved in a repetitive game. We present and illustrate a methodology for moving from ordinal payoffs to cardinal payoffs. We summarize the impact on how the solutions are achieved.

Educational Situation： Some Preliminary Remarks on a Basic Concept of Education Studies

When educationalists are asked to define their own academic discipline of Education Studies, they often struggle to reach a common understanding. From an epistemological point of view, this indeterminacy leads back to the complex considerations involved in establishing a basic concept of education. In this article, the author explores in a preliminary fashion the possibility of identifying the essence of education in its performativity as an occurrence in context that always precedes and supersedes our theoretical considerations of it. Education is not to be understood primarily as something conceptual （theory） but rather in terms of its significance as a situational event （reality）. Educational reality thus informs educational theory and this relationship implies a knowledge-ethical surplus of the former as an inexhaustible source for the latter.

Analysis of Production and Sales Situation of Sisal Fiber and Its Products in China

Based on results of previous studies,through investigations,the status quo,main advantages and disadvantages of using small hand-power scutchers and large-scale automatic sisal production lines to process sisal fiber were summarized and analyzed; the traditional uses and latest products of sisal fiber were studied,especially the comprehensive utilization of byproducts produced during sisal fiber processing as well as the broad prospects of new sisal products.

Utility of Urban Public Facilities of Haikou City Based on Behavioral Theory

From functions,ornament and art,on the basis of the behavioral theory,the utility of urban public facilities was surveyed and studied with Longhua District of Haikou City as an example.It summed up the basis for designing urban public facilities behind behavior habits of residents,in the hope of making future urban construction and management more humanized.Accordingly,it is expected to set up appropriate concept of public facilities,and play especially important role in creating favorable urban living environment.

中国全科医生培养和使用发展报告(2022)

党的二十大报告指出,要“发展壮大医疗卫生队伍,把工作重点放在农村和社区”,全科医生是居民健康和医疗费用的“守门人”,在基本医疗卫生服务中发挥着重要作用,培养“下得去、留得住、用得好”的应用型、复合型新时代全科医生人才,将是推进健康中国建设的重要一步。本报告在《中国全科医生培养发展报告(2018)》的基础上,将2018年至今我国全科医生的队伍建设、培养教育、使用激励机制改革等情况进行了较系统的梳理,并提出了我国全科医生的未来展望,希望可以为我国全科医学的进一步研究提供资料。

数字化转型背景下中小制造企业如何编排资源利用数字机会——基于资源编排理论的fsQCA研究

利用数字机会是中小制造企业实现数字化转型的关键。资源编排理论指出,利用数字机会离不开企业资源和能力的支持,尤其要将各种资源和能力有效组合起来。但大量中小制造企业难以有效编排自身资源和能力来利用数字机会。为此,本文关注中小制造企业的五种传统资源和能力(实物资源、关系资源、制造能力、营销能力和创新能力)及两种数字资源和能力(大数据资源和数字平台能力),运用模糊集定性比较分析(fsQCA)方法对392份问卷数据进行分析,研究发现:五种传统资源和能力及两种数字资源和能力都不能单独作为中小制造企业数字机会利用的必要条件,但数字平台能力作为核心条件能发挥较为普适的作用。同时,中小制造企业的数字机会利用存在三种路径,可归纳为“内向型”“外向型”和“内外兼顾型”,通过进一步聚焦高技术制造业,发现其数字机会利用存在两种路径:“渐进型”和“突破型”。本文有助于发现如何在数字化背景下编排企业资源和能力,拓展了资源编排理论的研究情境(数字化背景)和研究范围(数字资源和能力),回应了识别“数据时代的资源编排规律”的呼吁。

绿色转型:关系调适、基本样态及其发轫机制

经典环境社会学研究聚焦环境问题或环境衰退的学理解剖与理论阐释,呈现“环境衰退论”的叙事特征。为应对环境挑战,人类积极调整人与自然以及人与人之间的关系,推动社会的绿色转型,勾勒出资源消耗迈向资源善用、环境损害迈向生态修复、生态代谢断裂迈向生态循环以及失序发展迈向协调发展的基本轮廓。制度-政策势能、经济-技术变革和社会-文化浪潮构成绿色转型赖以发轫和发展的基本机制,其中,制度-政策势能在中国的绿色转型实践中扮演着关键性角色。当前,绿色转型虽然已不只是学术想象与学术倡导,但这种转型实践还处于趋势性状态,面临着不平衡性、不稳定性和不充分性的挑战。对此,环境社会学需要持续开展更为深入的学理研究。

二重情境:数字视听文化中的身份构建与认同疏离

数字视听媒介及其文化的发展创造了新的情境,推动用户产生新的媒介实践,但也带来了新的问题和现象,即情境生成逻辑向流媒体用户让渡的转变、情境功能作为交往工具的偏移,以及情境秩序在去公共性过程中权力再结构化的取向。其中隐含着情境之于用户身份构建的二重性:一方面,流媒体用户依据情境构建身份,身份的构建过程进一步激发了情境的创造;另一方面,这些被构建的身份呈现出去情境化的流动趋向,造成了身份与认同的疏离。对此,文章在厘清数字视听文化新情境特征的基础上,阐释流媒体用户基于身份的情境互动过程,以及身份认同疏离的成因及危机。更进一步,文章尝试将新媒介—新情境—新行为的线性模式延展为更具解释力的用户主导循环模式,并提出通过共识的凝聚、公共性的重拾和共同体的重建,推动数字视听文化的良序发展。

基于故障树和贝叶斯网络的管廊运维风险评估

城市地下综合管廊在运维过程中事故时有发生,为了量化管廊运维风险并分析关键风险因素,提出一种基于故障树和模糊贝叶斯网络的城市地下综合管廊运维风险评估方法。在综合考虑管廊风险因素的基础上构建故障树模型,将其映射为贝叶斯网络。基于ALARP准则划分风险因素状态等级,根据模糊数和模糊子集计算底事件的发生概率,利用最大似然估计法求解中间事件的条件概率,构建管廊运维风险贝叶斯网络模型,精准评估城市地下综合管廊运维风险。结果表明:所评估的管廊运维过程风险等级为High的概率为28%,接近30%的风险阈值,因此需要及时对管廊风险进行管控。该方法能够科学、合理地评价风险水平并确定关键因素,可为管廊运维安全保障和管理提供参考。

脑卒中患者复发风险感知与行为决策情境理论模型的初步构建

目的构建脑卒中患者复发风险感知与行为决策情境理论模型,为脑卒中行为管理提供新的指导框架。方法遵循护理学科理论模型发展过程,综合采用文献研究、质性研究及理论分析,初步构建脑卒中复发风险感知与行为决策情境理论模型,包括概念、命题(概念间假设关系)及模型边界(适用范围)。结果脑卒中复发风险感知与行为决策模型包含复发风险感知、行为决策、自我效能、社会支持、情感反应(担忧)和健康行为等6个核心变量,一条核心路径为“复发风险感知→行为决策→健康行为”,三条桥梁路径为“复发风险感知社会支持→行为决策→健康行为”“复发风险感知→自我效能→行为决策→健康行为”和“复发风险感知复发担忧→行为决策→健康行为”。结论脑卒中复发风险感知与行为决策模型或可丰富脑卒中健康行为管理相关理论研究,进而为开展脑卒中患者健康管理及复发防控实践工作提供新的视角。

基于期望效用理论的农户土地整治权属调整意愿研究

基于期望效用理论剖析农户土地整治权属调整意愿的内在机制,以广西壮族自治区龙州县的农户调查问卷数据为基础,采用逻辑斯谛(Logistic)模型,分析不确定条件下未来的预期收益和预期损失效用对农户权属调整意愿的影响,为引导农户积极响应权属调整提供决策参考。结果显示:农户认知是其产生支持行为意愿的基础,研究区只有约20%的农户对权属调整政策比较了解,超过80%的农户通过“自上而下”的方式被动获取信息,但接近90%的农户对权属调整表示认同,说明政策实施具备民意基础。在未来预期收益方面,新增耕地面积、改善农业基础设施条件、提高农业机械化使用率、提高规模化经营程度等因素对农户权属调整意愿至少在P<0.1水平上有显著正向影响;在未来预期损失方面,耕地质量下降、土地分配不公平等因素对农户权属调整意愿至少在P<0.05水平上有显著负向影响。据此提出如下对策建议:加强权属调整全过程的农户有效参与,切实保障农户土地权益;完善权属调整的法治化建设和制度化管理,促进权属调整获得农户的支持和信任;发挥权属调整对农地适度规模经营的推动作用,促进农户分享现代农业发展红利。

农户参与农业废弃物资源化利用行为的影响因素

【目的】农户参与农业废弃物资源化利用对促进绿色乡村建设、实现乡村振兴战略具有重要意义,探究农业废弃物资源化利用的影响因素可针对性提升农户进行农业废弃物资源化利用行为的积极性,为促进其可持续发展提供参考依据。【方法】本研究基于计划行为理论构建农户参与农业废弃物资源化利用认知对其行为响应影响的理论模型,采用500份农户资源化利用行为问卷调查数据,运用结构方程模型进行实证分析,从行为态度、主观规范、知觉行为控制三个维度构建了农业废弃物资源化利用行为的指标体系,并在此基础上进一步考察了农业废弃物资源化利用行为的影响因素。【结果】农户资源化利用认知的行为态度、主观规范和知觉行为控制三个维度均对其行为响应有显著的直接正向影响,同时主观规范和知觉行为控制会通过行为态度的中介作用对行为响应产生间接正向影响;农户资源化利用认知三个维度对其行为响应的综合影响路径系数从大到小依次为知觉行为控制(0.378)、主观规范(0.238)和行为态度(0.182);不同规模、不同地形区域农户的农业废弃物资源化利用认知对行为响应的作用具有异质性,即规模与地形区在其中具有调节作用。【结论】为实现进一步的资源化利用应推进农户参与农业废弃物资源化利用技术培训与指导常态化,强化农户参与农业废弃物资源化利用的行为控制能力,同时加强山区的信息基础设施建设,畅通信息传播,创新媒体手段,推进数字化管理,推进农户参与农业废弃物资源化利用支持政策全覆盖,并对小规模农户实施重点帮扶与支持。