Design and reliability,availability,maintainability,and safety analysis of a high availability quadruple vital computer system

With the development of high-speed railways in China,more than 2000 high-speed trains will be put into use.Safety and efficiency of railway transportation is increasingly important.We have designed a high availability quadruple vital computer (HAQVC) system based on the analysis of the architecture of the traditional double 2-out-of-2 system and 2-out-of-3 system.The HAQVC system is a system with high availability and safety,with prominent characteristics such as fire-new internal architecture,high efficiency,reliable data interaction mechanism,and operation state change mechanism.The hardware of the vital CPU is based on ARM7 with the real-time embedded safe operation system (ES-OS).The Markov modeling method is designed to evaluate the reliability,availability,maintainability,and safety (RAMS) of the system.In this paper,we demonstrate that the HAQVC system is more reliable than the all voting triple modular redundancy (AVTMR) system and double 2-out-of-2 system.Thus,the design can be used for a specific application system,such as an airplane or high-speed railway system.

Enhancer of Shoot Regeneration 2(ESR2)regulates pollen maturation and vitality in watermelon(Citrullus lanatus)

Watermelon(Citrullus lanatus)holds global significance as a fruit with high economic and nutritional value.Exploring the regulatory network of watermelon male reproductive development is crucial for developing male sterile materials and facilitating cross-breeding.Despite its importance,there is a lack of research on the regulation mechanism of male reproductive development in watermelon.In this study,we identified that ClESR2,a VIIIb subclass member in the APETALA2/Ethylene Responsive Factor(AP2/ERF)superfamily,was a key factor in pollen development.RNA insitu hybridization confirmed significantClESR2 expression in the tapetum and pollen during the later stage of anther development.The pollens of transgenic plants showed major defects in morphology and vitality at the late development stage.The RNA-seq and protein interaction assay confirmed that ClESR2 regulates pollen morphology and fertility by interacting with key genes involved in pollen development at both transcriptional and protein levels.These suggest that Enhancer of Shoot Regeneration 2(ESR2)plays an important role in pollen maturation and vitality.This study helps understand the male reproductive development of watermelon,providing a theoretical foundation for developing male sterile materials.

Understanding Urban Vitality from the Economic and Human Activities Perspective:A Case Study of Chongqing,China

The literature on urban vitality tends to focus on the built environment.This paper argues that some important processes in shaping vitality may be overlooked without examining the intensity and diversity of economic and human activities.Using newly developed spatial big data and adopting the methods of multi-indicator measurement and spatial analysis methods,we analyzed the pattern of urban vitality in Chongqing,a provincial city in western China and,on this basis,evaluated the creation and maintenance of urban vitality from the economic and human activities perspective.Our findings indicate that the impacts of economic and human activities are positive and significant.Among the three intensity and diversity indicators,economic intensity and population density show an effect on urban vitality stronger than that of economic diversity.However,economic diversity has the strongest superposition or interactive effect,and is thus an important foundation dynamic.The positive effect of population density on urban vitality is largely a result of Chongqing’s jobs-housing balance.The case of Chongqing highlights the importance of topographic features,historical inheritance,large-scale migration,and cultural activities in shaping the distinctive vitality pattern of a city.This study contends that the creation and maintenance of urban vitality can not be fully explained without incorporating the impacts of economic and human activities.It contributes to a comprehensive measurement of urban vitality and enriches its connotations.

Earth vitality:An integrated framework for tracking Earth sustainability

The Anthropocene era is characterized by the escalating impact of human activities on the environment,as well as the increasingly complex interactions among various components of the Earth system.These factors greatly affect the Earth's evolutionary trajectory.Despite notable strides in sustainable development practices worldwide,it remains unclear to what extent we have achieved Earth sustainability.Consequently,there is a pressing need to enhance conceptual and methodological frameworks to measure sustainability progress accurately.To address this need,we developed an Earth Vitality Framework that aids in tracking the Earth sustainability progress by considering interactions between spheres,recognizing the equal relationship between humans and nature,and presenting a threshold scheme for all measures.We applied this framework at global and national scales to demonstrate its usefulness.Our findings reveal that the current Earth Vitality Index is 63.74,indicating that the Earth is in a"weak"vitality.Irrational social institutions,unsatisfactory life experiences and the poor state of the biosphere and hydrosphere have remarkably affected the Earth vitality.Additionally,inequality exists between high-income and low-income countries.Although most of the former exhibit poor human-nature interaction,all of them enjoy good human well-being,while the opposite is true for the latter.Finally,we summarize the challenges and possible options for enhancing the Earth vitality in terms of coping with spillover effects,tipping cascades,feedback,and heterogeneity.

Effectiveness of aromatherapy with lavender compared to progressive muscle relaxation on anxiety and vital signs in patients under spinal anesthesia:A randomized clinical trial

Objective:This study aimed to determine the effectiveness of aromatherapy with lavender essential oil compared to progressive muscle relaxation(PMR)on anxiety and vital signs of patients under spinal anesthesia.Materials and Methods:This clinical trial was conducted on 120 spinal anesthesia candidates who were randomly assigned into three groups of 40 including control,PMR(Jacobsen group),and aromatherapy.The state-trait anxiety inventory was completed on surgery day and 15 min after the end of the intervention by the samples of all three groups,and at the same time as completing the questionnaire,vital signs were also measured and recorded.Results:The mean score of anxiety after intervention was lower than that before the intervention in the aromatherapy group(P<0.001).The mean score of anxiety in the aromatherapy group was significantly lower than that in the Jacobsen group(P<0.001).Moreover,data analysis showed a significant decrease in the mean arterial blood pressure scores of the PMR(P=008)and aromatherapy(P<0.001)groups and a statistically significant increase in the mean heart rate scores in the control group(P=0.002).Conclusion:The use of aromatherapy with lavender is more effective than PMR therapy in reducing the anxiety level of patients undergoing spinal anesthesia.Due to the high level of anxiety and its serious effects on the patient’s hemodynamics,aromatherapy with lavender can be used as an easy and cheap method to reduce anxiety in operation rooms.

Improvement of the Vitality of Public Space under the Background of Urban Renewal

As an indispensable part of urban development,urban renewal plays an important role in terms of promoting urban society,economy,culture,etc.,and has a profound impact on the sustainable development of cities and the happiness index of residents.Public space,as an important part of a city,plays a more critical role in urban renewal.The vitality of public space not only reflects the degree of urban cultural inheritance,but also shows the level of urban economic development,so it is an important issue that must be paid attention to in urban renewal work.In this paper,starting from the concept of urban renewal,public space and vitality,the influencing factors and methods of studying the vitality of public space under the background of urban renewal,as well as its advantages and limitations,were discussed,and some strategies for enhancing the vitality of public space under the background of urban renewal were finally put forward.It is expected to provide some reference and practical significance for the research and practice of urban renewal and the enhancement of the vitality of public space.

Data Collection and Research on the Vitality of Public Space in Traditional Villages: A Case Study of Cuandixia Village

The optimization and renewal of rural space is the foundation for building livable,business friendly and harmonious countryside.Three types of data on the spatial vitality of traditional villages are collected and analyzed.A street and alley axis map model is established using spatial syntax,and the degree of industry aggregation is quantified using POI data,and the results of syntactic calculation are validated with the help of popular review text preferences.Taking Cuandixia Village as an example,this paper found that its public space nodes have a pattern of one axis and scattered points;the street and alley space is well preserved but slightly lacking in transportation;the user group is single and the form is traditional.This paper could provide corresponding suggestions for stimulating the vitality of public spaces in traditional villages,in order to provide inspiration for the revitalization design of public spaces in traditional villages.

Theoretical Research and Practical Application of the Rural Cultural Enhancement by Creative Designs Under Rural Vitalization-A Case Study of Shanxi Province

To revive the nation,the rural area must be revitalized.Every regional cultural and creative industry has its own development path and practical mode.From the perspective of rural revitalization,this paper conducts research on the development model of cultural and creative design,and analyzes the significance of the integration of creative design with rural regional culture.Based on the current situation of rural cultural and creative development in Shanxi Province,this study proposes to form a brand communication chain through the integration between cultural design and rural culture,and the establishment of cultural and creative brands,furthermore,to establish trending topics through multiple channels.Finally,the important practical significance of cultural and creative design in promoting rural economic development and enhancing rural culture value is discussed in this design strategy,so as to actively help the new journey of rural revitalization.

Impact of human settlements quality on urban vitality based on multisource data:A case study of Shahekou District,Dalian,China

Urban geography has always been concerned about the influence of human settlements on urban vitality,but few studies reveal the influence of human settlements on urban vitality at a micro-scale.This paper analyzes the spatial distribution characteristics of human settlements’quality and urban vitality at the micro-scale using Geodetectors and geographic weighted regression to analyze the relationship between human settlements and urban vitality.The results are shown as follows:there is still a significant development space for human settlements quality in Shahekou District,with obvious spatial dependence characteristics and significant gaps between various systems;the urban vitality of Shahekou District has obvious timeliness,and the urban vitality undergoes significant changes over time,which is related to the human settlements quality.The spatial distribution presents a single core spatial distribution structure with strong relative stability.The spatial distribution of cold and hot spots shows a pattern of“high in the north and low in the south,high in the east and low in the west”,with an increasing trend from southwest to northeast;the reachability of public transport has a significant impact on urban vitality.Its synergy with other variables is the leading force forming the spatial distribution of urban vitality.The environmental system,support system and social system are the significant factors affecting the urban vitality of Shahekou District.

Research on Evaluation of Spatial Vitality and Influencing Factors of Guesthouses Public Areas Based on Rural Tourism Development

In recent years,China has continued to promote the strategy of rural revitalization.The rural tourism industry has developed rapidly in the context of rural revitalization.Now the rural B&B industry has become an important pillar in solving the problem of rural tourism accommodation.Most of the villages in China have begun to carry out the construction of rural lodging,for example,there are residents who use idle houses to carry out construction on their own initiative and projects developed by village collectives,so the rural lodging industry has been vigorously developed.The vitality of supporting industries and landscape resources around the distribution of rural lodging has become a hot spot of rural issues research in recent years.Therefore,we can use the method of data analysis to analyze the industry and function of the public area around the distribution of rural B&B.Through the comparison of data and the interpretation of related cases,the core elements affecting the spatial vitality of B&B public areas can be identified.We will analyze and improve the related elements to find a reasonable way to enhance the spatial vitality value.Finally,the article will put forward suggestions to improve the related spatial vitality as a way to promote the development of rural B&B industry and the progress of rural tourism.

Low Level of Cystic Fibrosis Transmembrane Conductance Regulator Is Associated with Human Sperm Autophagy and Vitality

Low sperm motility is one of the main causes of male infertility. Cystic fibrosis transmembrane conductance regulator (CFTR, an anion channel protein) is related to the progressive motility of sperm. CFTR disruptor CFTRinh-172 or forskolin (FSK) in this study were used to treat human sperm separately, and the rates of sperm autophagy and progressive motility, mitochondrial membrane potential (MMP) and ATP concentration, and the expression levels of related factors were detected to explore their relationship. It was showed that sperms treated with CFTRinh-172 or FSK reduced the levels of cAMP, CFTR and PKA, but increased sperm autophagy rate, expression levels of AMPK and LC3B. However, reactive oxygen species content had no significant difference. It was indicated that low level of CFTR performed with cAMP and its downstream effectors such as PKA and AMPK to regulate mitochondrial structure and function, leading to increased autophagy rate and reduced vitality of sperm.

Vitality and storage condition of Syringa pollen

The fresh pollen vitality, the effect of different storage conditions on the pollen vitality, and the difference of vitality among the species of seven species of Syringa were determined in Shenyang, China. The results indicated that the pollen vi-tality (81.5%) of Syringa villosa was the highest among the seven tested species, followed by S. microphylla and S. meyeri, and that of S. oblata var. affinis was the lowest. The low temperature was the best condition for storage of pollen of Syringa, and the most proper temperature for the storage was 0-2 癈. The storability of S. microphylla was the best of all, and it could be stored over 60 days at the temperature of 0-2 癈, next was S. villosa and S. meyeri.

mini VITAL全自动血培养仪假阳性/假阴性结果分析

目的 评价miniVITAL全自动血培养仪在临床应用中的假阳性 /假阴性情况。方法 采用回顾性分析 ,对miniVITAL全自动血培养仪在检测 3834份临床标本中出现的假阳性 /假阴性率及导致假阴性结果的细菌种类与分布进行评估分析。结果 miniVITAL系统假阳性率和假阴性率分别为 0 .6 8%和 0 .70 % ,所有致假阴性菌种中 ,以真菌的比率最高 ,占 6 2 .0 7% ,其次为非发酵菌、草绿色链球菌、凝固酶阴性葡萄球菌、革兰阳性杆菌和厌氧菌 ,分别为 10 .34%、10 .34%、6 .90 %、6 .90 %和 3.4 5 %。

吞咽障碍患者VitalStim电刺激治疗的康复护理

总结34例吞咽障碍患者配合Vital Stim电刺激综合治疗的康复护理经验。在治疗中注意正确放置电极,沿中线垂直放置时,其最下方电极不能放置于环状软骨以下位置,沿中线两侧放置时,旁侧不可过远;调整刺激强度,初次治疗强度在4.5～8 mA,以后根据患者感觉进行调整,以出现"抓握"、"挤压"、"拽"等感觉但可以耐受为度;指导患者治疗过程中尽可能持续配合电刺激的频率做吞咽动作;并根据吞咽障碍的程度不同配合口面部运动、咽刺激以及进食指导,同时加强心理护理,鼓励患者坚持有效的治疗。在治疗前及治疗2个疗程后参照才藤氏吞咽障碍7级评价法进行吞咽功能评价,治疗后患者吞咽功能显著改善。

LASAR仿真中的VITAL建模方法研究

应用LASAR仿真方法时,只有具备了电路板网络表和电路板上所有数字逻辑器件的模型,才能够生成有效的电路板测试数据。构建完整的器件库,是有待研究的1项重要内容。VITAL建模是众多建模方法中较科学并容易实现的途径,它为ASIC库的建立、电路设计的描述提供了便利的、格式相对固定的描述方法。本文介绍VITAL的基本内容,并对用VITAL建立电路模型的方法进行详细描述。

VITAL——设计ASIC模型的VHDL基准

ＶＩＴＡＬ是ＩＥＥＥ新近制定的一个用ＶＨＤＬ建立ＡＳＩＣ模型库的基准，它为ＡＳＩＣ库的建立、电路设计的描述提供了便利的、格式相对固定的描述方法，并为提高模拟性能提供了依据和基础．本文介绍ＶＩＴＡＬ的基本内容，并介绍用ＶＩＴＡＬ描述电路模型的方法．

Effects of Salt Stress on Root Vitality of Limonium bicolor (Bunge) Kuntze

[Objective] This study aimed to investigate the effects of different salt concentrations on the root vitality of Limonium bicolor （Bunge） Kuntze. [Method] Limonium bicolor （Bunge） Kuntze was treated with 0, 100, 200 and 400 mmol/L NaCl, respectively. After two weeks, root vitality, biomass and other physiological indicators were measured. [Result] Salt stress had significant influences on the growth of roots. Root vitality of Limonium bicolor increased firstly and reduced gradually with the increase of salt concentration. [Conclusion] The results indicate that Limonium bicolor has certain salt tolerance ability at low salt concentrations; under relatively high salt concentrations, Limonium bicolor roots can maintain high vitality; however, with the continuous increase of salt concentration, Limonium bicolor roots are damaged, with decreasing vitality.

以“VITAL”为核心理念的建筑类专业国际化人才培养模式构建与实践

培养高水平国际化人才、助推“双一流”建设已成为发展我国高等教育的重要组成部分。近年来建筑学科国际化人才培养虽已取得长足发展,但审视建筑学科发展后,仍存在国际化专业知识结构单一、与国家和行业发展需求关联不足、国际化与本土化教育缺乏良性互动等问题。重庆大学建筑城规学院围绕国家一流专业建设,坚持立德树人,秉承“高水平、高标准、国际化”的人才培养目的,以创新能力、实践能力、国际化能力、科研能力等关键能力培养为主线,构建实施了以“VITAL”为核心理念的国际化建筑类人才培养体系,并与国外一流建筑院校建立长期稳定合作关系,拓展了学生国际化学科视野,为培养一批在建筑类学科领域兼有国际视野与本土情怀、创新意识与批判性思维的国际化人才提供了条件。

基于Android Vitals的应用性能监控方法

随着移动应用的普及,应用的性能成为了用户体验的重要因素。文章提出了一种基于Android Vitals的应用性能监控方法,该方法可以监控应用的性能指标,如应用启动时间、响应时间和内存占用等,通过收集和分析这些数据,可以对应用的性能进行评估和优化。利用Android系统自带的性能监控工具和第三方工具来收集数据,并通过可视化工具展示结果,从而为开发人员提供了一种简单、有效的性能监控方法。实验结果表明,该方法可以对应用的性能进行准确地评估和优化,对提高应用的用户体验具有重要意义。

机器性能检测在VitalBeam加速器精确放射治疗质量控制中的应用

目的 直线加速器的质量控制是临床开展精确放射治疗的重要保证,是物理师的工作职责之一。 研究探讨应用机器性能检测(MPC)模块完成 Vital Beam 加速器质量控制的高效性和精确性。 方法 通过分析天津市人民医院放疗科自2019 年 10 月至 2021 年 2 月使用美国瓦里安 VitalBeam 加速器开展精确放射治疗,借助 MPC 模块行加速器质量控制检测的 522 例机器自检数据,统计 Vital Beam 加速器机械性能及束流等各项参数的波动及变化趋势,评估 VitalBeam 加速器用于临床肿瘤患者放射治疗的精确性及稳定性。 结果 机器等中心尺寸(0.33 ± 0.01) mm,MV 探测板投影偏移(0.19 ±0.04) mm,kV 探测板投影偏移(0.22 ± 0.04) mm。 铅门(JAW):X= (0.13 ± 0.20) mm,X= (- 0.18 ± 0.32) mm,Y= (0.13 ±0.20) mm,Y= (- 0.18 ± 0.32) mm。 多叶准直器(MLC):A 侧(0.27 ± 0.03) mm,B 侧(0.42± 0.02) mm。 机架:绝对偏移- 0.10° ±0.01°,相对偏移 0.06° ± 0.01°。 治疗床 :侧向 (- 0.16 ± 0.04) mm,纵向 (- 0.02 ± 0.03) mm,升降 (0.01 ± 0.05) mm,公转- 0.03° ± 0.01°,旋转位置偏移(0.18 ± 0.06) mm。 6 MV X 射线:输出变化 0.40 % ± 0.76 %,均匀度变化 0.63 % ±0.34 %,中心偏移(0.28 ± 0.18) mm。 所有机械性能和束流等各项参数检测结果均在瓦里安公司标准范围之内,且完全符合中国关于开展精确放射治疗规定的加速器质量控制要求。 结论 VitalBeam 加速器关键机械参数及剂量输出稳定可靠,能够满足精确放射治疗的临床要求,保证肿瘤患者的治疗安全。 其自带的 MPC 模块快速、高效、精确地提供加速器质量控制工作,不仅可以做到加速器日检项目,还包括绝大多数月检项目,为临床开展精确放射治疗保驾护航;同时为加速器关键性易损部件提供故障预警报告,及时发现隐患,避免日后停机,影响患者治疗。 经第三方质量控制设备验证,MPC模块检测结果可靠,用于精确放射治疗质量控制,可以降低物理师的日常工作负担,提高放射治疗团队的工作效率,是临床肿瘤患者得到高效精确放射治疗的有利措施。