基于Hotelling T2-BiLSTM的同步调相机故障诊断方法

同步调相机故障会严重影响特高压直流输电工程的稳定性。针对特高压电网中不对称电压条件下同步调相机励磁绕组匝间短路故障难以识别问题,提出基于霍特林T2-双向长短期记忆网络(Hotelling T2-BiLSTM)的同步调相机故障诊断方法。首先,从三相电压、三相电流、励磁电流、转子振动和无功功率中提取故障特征,计算Hotelling T2统计量以构建故障检测指标;然后,采用BiLSTM模型对特征进行分类,并利用逻辑回归层进行故障诊断;最后,在动模实验室中进行实验验证其有效性。实验结果表明,所提方法具有较高的故障诊断精度。

Risk Factors for Cardiovascular Disease among Hotel Workers, Bohicon, Benin

Introduction: Non-communicable diseases (NCDs) are on the increase in several sectors of activity. The aim of the study was to determine the frequencies of cardiovascular risk factors (CVRF) and factors associated with hypertension among hotel workers in the city of Bohicon. Methods: This was a descriptive and analytical cross-sectional study conducted in the period from December 2018 to January 2019. The variables studied were sociodemographic, occupational, anthropometric and behavioral. Participant recruitment was exhaustive. A standardized questionnaire inspired by the STEPS-WHO questionnaire was used for data collection. After the descriptive analysis, a bivariate analysis was performed using Pearson’s Chi-square test or Fisher’s test at the 5% threshold. Results: A total of 101 workers, 53 (52.47%) of them male, participated in the study. The mean age was 30.60 ± 8.20 years, with extremes of 18 and 55 years. The frequencies of the main risk factors were: 68.32% sitting position > 6 hours/day;38.61% shift work;21.78% high psychological demand, 82.18% low decision latitude, 24.75% low social support, 21.78% occupational stress;7 (6.93%) harmful alcohol consumption;6.93% tobacco consumption;48.51% insufficient physical activity;98.02% insufficient fruit and vegetable consumption;59.41% overweight;14.85% HTA. Factors associated with hypertension were: sex, age and marital status. Conclusion: Occupational factors need to be taken into account when assessing CVRFs. NCD control programs are needed in all sectors of activity. A larger study is needed in the hotel sector.

线上与线下消费均衡分析——基于扩展的Hotelling模型

基于扩展的Hotelling线性城市模型,构建一个线上与线下消费均衡分析的理论框架有利于推动线上和线下消费深度融合。研究发现:时间成本和距离成本是线上消费和线下消费共存的原因;纳入时间成本函数后,线下需求会随着线上消费花费的时间增加而增多;线下需求的服务体验成本具有正向弹性,但是弹性大小受到相关参数的综合影响;线下服务差异越大,则线下需求价格弹性越小。

Energy-Efficient and Cost-Effective Approaches through Energy Modeling for Hotel Building

Hotel buildings are currently among the largest energy consumers in the world.Heating,ventilation,and air conditioning are the most energy-intensive building systems,accounting for more than half of total energy consumption.An energy audit is used to predict the weak points of a building’s energy use system.Various factors influence building energy consumption,which can be modified to achieve more energy-efficient strategies.In this study,an existing hotel building in Central Taiwan is evaluated by simulating several scenarios using energy modeling over a year.Energy modeling is conducted by using Autodesk Revit 2025.It was discovered from the results that arranging the lighting schedule based on the ASHRAE Standard 90.1 could save up to 8.22%of energy consumption.And then the results also revealed that changing the glazing of the building into double-layer lowemissivity glass could reduce energy consumption by 14.58%.While the energy consumption of the building could also be decreased to 7.20%by changing the building orientation to the north.Meanwhile,moving the building location to Northern Taiwan could also minimize the energy consumption of the building by 3.23%.The results revealed that the double layer offers better thermal insulation,and low-emissivity glass can lower energy consumption,electricity costs,and CO_(2)emissions by up to 15.27%annually.While adjusting orientation and location can enhance energy performance,this approach is impractical for existing buildings,but this could be considered for designing new buildings.The results showed the relevancy of energy performance to CO_(2)emission production and electricity expenses.

Arnold Bennett’s Hotel Space and Modernity

Arnold Bennett is well-known for his regional novels that mainly represent domestic quotidian lives of his pottery town,especially the lower and middle class.However,his infatuation with the hotel space implicates his ambition to re-situate his characters within the parameters of hotel and create new types of characters,representing in new ways the subjectivity of characters and their relations with material space.Based on his hotel writing,this article intends to re-conceive the historical reasons of his obsession with hotel space and further probe the modernity deflected by his representation of domestic selves and modern public identities in hotel space.

Strategic Planning Practices of Hotels in Kenya

This study broadens perspectives of strategic planning procedures in hotels by analyzing hotel managers’perspectives on hotel strategy formulation and planning.The study was a descriptive quantitative study that targeted managers from various Kenyan hotels.180 questionnaires were returned from a sample of 280 hotel managers who had attended management development programs at a hospitality school.The primary goal of the study was to analyze two aspects of the strategic planning process:strategy formulation and strategic planning.The findings revealed that hotels in Kenya have developed methods and are keen on scanning their external environments.However,with the product offerings being so comparable,competitive analysis played an important role in the context.Creating a unique or specialty offering was not a popular option for most hotels.Cost-cutting was the most favored strategic inclination to achieve desired results.The balanced scorecard was underutilized in the sector.While managers were involved in the strategic planning process,other lower cadre employees were not,they were provided with the targets for the hotels’organizational goals to be achieved.The findings reveal that with similar products and services,the industry creates a hostile business climate with fierce rivalry and must invest in the most obvious alternative of cost reduction to survive.Alternative product innovation is not common in this industry for developing a differentiation approach that allows a property to control a market.

Exploring Efficient Salary Management Systems:A Case Study of Hefei Yusheng Hotel Management Co.,Ltd.

The issue of brain drain poses a significant obstacle to the development of the hotel and catering industry.Attracting and retaining skilled personnel to engage in management within this sector has emerged as a primary challenge.This paper examines the current landscape of China’s catering service industry and its salary management system,identifying key challenges encountered in salary management within the industry.Drawing upon salary management theory and insights into existing challenges,the paper proposes specific treatment measures and management strategies.

A Study on Technology Application and Performance of Small and Medium-sized Enterprises in the Context of Cloud Computing Application-A Case Study of Hotel Industry in Henan,China

This paper examines how the adoption of cloud computing affects the relationship between the technical and environmental capabilities of small and medium-sized enterprises(SMEs)in the tourism industry in Henan Province,China,thereby promoting the stable and sustainable development of the tourism industry,combining the laws of tourism market development,vigorously constructing a smart tourism project,guiding tourism cloud service providers to strengthen the cooperation and contact with the market’s tourism enterprises,introducing and utilizing cloud computing technology,optimizing and improving the functions of various tourism services of the enterprises,and enhancing the processing and analysis of enterprise-related data to provide tourism information.Strengthen the processing and analysis of enterprise-related data to provide tourism information,and further study the adoption of cloud computing and its impact on small and medium-sized enterprises(SMEs)in terms of technology and business environment knowledge,so as to make the best enterprise management decisions and realize the overall enhancement of the enterprise’s tourism brand value.

The Logic and Innovative Practice of Hotel Management Talent Training in the New Era

In the context of the new era,people’s material living standards have improved and the public’s demand for spiritual life experience is more vigorous,the hotel industry has also ushered in the development of the peak period,and the demand for high-quality hotel management professionals is increasing.The cultivation of hotel management professionals needs to adapt to the transformation and upgrading of the hotel industry.Based on the study of the development status and new challenges faced by hotel management education in the new era,this article explores the logic and innovative practice of cultivating hotel management professionals from the aspects of strengthening the construction of hotel management disciplines,constructing new models of talent cultivation,reforming educational concepts,and reshaping the teaching content system.It aims to provide guidelines for the cultivation of hotel management professionals in Chinese universities.

Research on the Development Strategy of Panxi Sunshine Health and Wellness Homestays and Hotels Based on Traditional Chinese Medicine Health Preservation

This study is the first phase of research results from the student innovation project“Yunqiao Sunshine Health and Wellness Homestay”group at Chengdu Normal University.By analyzing the current state of the Sunshine Health and Wellness Tourism Area economy in the Panxi region of Sichuan,local policies,and the current state of Sunshine Health and Wellness homestays and hotels,this paper proposes the possibility of developing Sunshine Health and Wellness homestays and hotels through traditional Chinese medicine(TCM)health preservation methods.It also proposes development strategies for such hotels through a market survey SWOT analysis.

基于扩展Hotelling模型的企业竞争策略研究

通过将纵向差异引入到二次函数运输成本下的Hotelling模型中,研究具有不同质量、网络外部性、兼容性和转移成本的2个垄断厂商的竞争策略。首先,进行选址;然后,进行价格竞争的完全信息动态博弈,得到产品具有横向差异和纵向差异的2个垄断厂商市场竞争的均衡策略,推广了Hotelling模型的结论;最后,在选择横向差异最大化的情况下,分析了一般市场竞争策略,在无纵向差异条件下分别讨论了不同网络效用系数、兼容性和转移成本对市场竞争策略的影响。

基于Hotelling模型的双寡头免费增值策略竞争分析

软件产品的经验性和强网络效应使得企业往往依靠免费的基础产品积聚人气,再通过收费的增值产品或服务来盈利。现有免费增值策略相关研究多局限于垄断情况,对多个企业之间的竞争交互鲜有探讨。基于产品网络效应和消费者偏好差异,本文构建Hotelling模型研究了双寡头企业免费增值策略博弈均衡及其影响因素。结果表明:若网络效应相对较强,企业都应采用免费增值策略;若网络效应相对较弱,都不采用;若网络效应相对处于中等水平,存在"都不采用"和"都采用"两种可能的均衡结果,但前者情况下双方企业都能获得更大利润。另外,消费者对企业之间的水平差异越敏感,对免费版本的质量要求越高,企业采用免费增值策略的动力越弱,"都不采用"区域扩大,而"都采用"区域缩小。

具有Stackelberg博弈和网络外部性的扩展Hotelling模型

在具有不对称网络外部性的Hotelling模型中,引入Stackelberg博弈价格均衡。在放松厂商定位必须局限于消费者分布空间的假设后,相比较于传统的Nash博弈价格均衡结果,厂商通过Stackelberg价格博弈中可以选择更大的产品差异性,市场先进入者在均衡价格、市场份额和利润方面比后进入者具有先动优势。当网络效用系数相同时,市场先进入者所获得价格、市场份额和利润都大于其Nash均衡时所获得结果;市场后进入者所获得市场份额小于其Nash均衡的结果,但其价格和利润则根据网络效用系数的不同而变化。

基于Hotelling模型的回收企业竞争策略

产品回收企业通过价格与选址的差异化竞争使经济收益最大化,将Hotelling模型应用于回收企业的市场竞争中,分别分析了企业同步进入市场时的两阶段博弈和进入市场不同步时的三阶段Stackelberg博弈过程,研究了资源限制和市场进入次序对企业定价、选址策略的影响,通过对比分析企业的博弈均衡结果,说明了回收能力对企业发挥市场竞争先动优势的重要性。

基于Hotelling改进模型的服务创新差异化竞争战略研究

通过构建一个引入"选址成本"的消费者偏好非均匀分布Hotelling改进模型,分析企业采取服务创新战略来实现差异化竞争的问题。研究表明,企业可选择不同的服务创新战略来进行差异化竞争。竞争中,企业总可以通过提供低廉的服务来节省成本从而获利。特别在服务成本普遍上涨时,为获取最大利润,企业有采取成本导向型服务创新战略的趋向。

跨国并购后的品牌策略--基于Hotelling模型的分析

构建存在三个差异品牌产品的一期动态博弈Hotelling模型,分析跨国公司并购东道国企业后的品牌策略。当跨国公司的自有品牌与东道国品牌的差异程度较小,与东道国竞争企业的品牌差异程度较大时,如果多品牌经营的维护成本很小,那么跨国公司并购后将选择联合经营自有品牌与东道国品牌;如果多品牌经营的维护成本很大,那么跨国公司并购后将选择弃用东道国品牌,而单独经营自有品牌。当跨国公司的自有品牌与东道国品牌的差异程度较大,与东道国竞争企业的品牌差异程度较小时,跨国公司并购后将选择弃用自有品牌,而单独经营东道国品牌。

具有网络外部性的扩展Hotelling模型

将网络外部性引入线性运输成本下的Hotelling模型,研究了两家网络产品厂商首先选址,然后进行价格竞争的两阶段完全信息动态博弈问题,得到了厂商价格竞争均衡的存在性条件,推广了一般Hotelling模型的结论.由于网络外部性的存在,消费者效用是相互依赖的.网络产品的市场份额既是消费者选择的结果,又是消费者选择的依据.文章将交通流量分配技术和无穷维变分方法相结合,建立了刻画网络产品市场划分的模型——无穷维变分不等式,并研究了市场划分的存在性和唯一性问题.最后假定厂商定位在两端,分析了产品的网络外部性特征及单位运输成本对两个厂商竞争均衡情况的影响.

基于Hotelling模型的服务型制造增值机理研究

为探讨服务型制造对厂商差异化战略的影响,结合服务的特性,构建了区间Hotelling差异化模型:无差异化的产品竞争模型和服务差异化模型。通过对模型进行求解得到最佳服务差异化程度和均衡价格。比较和分析模型结果表明:(1)服务差异化程度大于某个临界值时才会获得正的利润;(2)适度服务差异化可以提升厂商利润和消费者剩余。(3)消费需求模式的变化是服务型制造的关键因素,而厂商移动的边际成本对其采取差异化竞争战略有重要影响。

新零售时代零售商主导的双渠道供应链线上线下服务水平决策——基于Hotelling模型

随着以消费者体验为中心的新零售的深入发展,零售商更加关注客户在整个消费过程中的综合服务体验,迫切需要围绕消费者需求设计科学的服务水平策略。基于Hotelling模型,构建由制造商、线上零售商、线下零售商以及物流服务商组成的双渠道供应链,结合双渠道的特点,将线上、线下服务水平及物流服务价格等同时引入供应链,研究分散决策以及局部合作决策两种模式下的最优服务水平决策等。研究表明:两种决策模式下,单位距离成本对物流服务水平以及线下综合体验服务水平具有负向影响,因此,线下零售商应科学选址,缩短与消费者之间的时间距离;当消费者的线上线下价格敏感系数之差增大时,线上渠道的市场份额及利润水平下滑,而线下渠道恰恰相反。因此,不同渠道的决策主体应采取差异化的市场定位策略。分散决策时整个供应链的物流服务水平小于线下综合体验服务水平,而线上零售商的合作策略可进一步提高其市场份额及物流服务水平,但不影响整个供应链的线下综合体验服务水平。因此,线上零售商和物流服务商应采取合作策略。

关系营销适用性的博弈分析——一个拓展的豪泰林(Hotelling)模型

在传统营销理论及实践效果备受质疑的今天 ,关系营销适用性问题已经成为学术界和实业界亟待关注并解决的课题了。本文从产业竞争的角度 ,应用博弈理论的相关知识 ,利用拓展豪泰林模型 ,对企业关系营销活动的开展在竞争市场下的适用性问题进行了深入、细致地分析 ,得出竞争市场均衡条件下的各种均衡条件的函数模型 。