基于INtime实时扩展技术的数据集中器设计

介绍了电力系统实时动态监测系统的构成,分析了数据集中器的任务特点,对基于INtime的Windows实时扩展技术进行了研究,提出了采用Windows XP+INtime的数据集中器设计方案。该方案基于标准的PC硬件平台,利用实时多任务操作系统INtime的实时性完成相量数据的接收、处理、转发,利用Windows操作系统强大的图形界面功能,实现对PMU装置的运行管理功能。在软件结构上,把数据集中器实时数据传输任务设计成INtime进程,把运行管理非实时任务设计成Windows进程,利用INtime的共享内存和信号量机制实现Windows进程和INtime进程之间通信。通过对数据集中器的测试和现场试运行,验证了该方案的适用性。

基于INtime的EtherCAT实时采集系统主站设计

为了满足EtherCAT网络通信的高实时性,提出了一种新的主站程序设计方案;基于Windows XP系统扩展INtime实时核的开发环境,使EtherCAT网络主站能够实现实时通信的要求;首先,介绍了EtherCAT网络的体系结构,然后,在分析INtime实时核扩展原理及EtheCAT网络通信原理的基础上,对主站功能模块进行了详细的划分,并给出了基于INtime实时系统的主站程序具体设计方法;最后,采用EtherCAT从站平台―高速多功能信号测试仪,验证了基于INtime的实时主站的功能,并对系统进行了测试分析,给出了实时性能测试的结果;实验结果表明设计的多功能采集系统主站具有高的实时性和可靠性特点。

基于INtime的雷达实时操控显示终端设计

为了兼顾雷达操控显示终端的实时性能和强劲的图形显示能力,提出了基于INtime实时扩展的雷达实时操控显示终端设计方案。通过INtime实时进程完成雷达实时控制、数据处理等实时任务,通过Windows进程完成雷达数据等的快速显示,利用INtime的共享内存和信号量机制实现两进程之间的通信。经过测试仿真及与雷达实装的现场运行,获得了良好的效果,验证了该方案的适用性。

基于INtime的雷达实时操控显示终端设计

为了解决雷达操控显示终端的强劲的图形显示能力与实时性能相结合的问题,本文提出了一种在XPE下基于INtime实时扩展的雷达实时操控显示终端设计方案。通过INtime实时进程完成雷达实时控制、数据处理等实时任务,通过Windows进程完成雷达目标、原始视频、状态数据等的快速显示,利用INtime的共享内存和信号量机制实现两之间通信。经过测试与仿真以及与雷达实装的现场试运行,验证了该方案的适用性。

基于INtime的六自由度运动平台实时测控系统

在六自由度运动平台的测控系统中,既需要满足控制的实时性和较高的定时精度,又需要有较强的图形图像交互功能。针对现有测控系统采用的上下位机分开实现方式带来的缺点,设计了一种基于INtime的六自由度运动平台实时测控系统。该测控系统通过INtime进程对数据采集和控制板卡的直接操作实现实时性,同时在Windows进程中并行运行非实时任务,能够在一台工业控制计算机上实现测控系统的要求。实际运行测试结果显示,该系统具有高实时性能,满足实时控制的要求,图形渲染流畅,验证了该方案的可行性和有效性。

INTIME实时系统在车辆传动系旋转耐久试验中的研究与应用

汽车驱动桥在汽车行驶过程中承受复杂的载荷,它既要传递系统中的转矩,又要支撑着汽车的荷重。驱动桥必须具有足够的强度、刚度和寿命。因而驱动桥总成及其零部件必须经受严格的试验。研究一种性能好、精度高的汽车传动系耐久试验台非常有必要.

The incidence rate and histological characteristics of intimal hyperplasia in elastase-induced experimental abdominal aortic aneurysms in mice

Intimal hyperplasia(IH)is a negative vascular remodeling after arterial injury.IH occasionally occurs in elastase-induced abdominal aortic aneurysm(AAA)mouse models.This study aims to clarify the incidence and histological characteristics of IH in aneurysmal mice.A retrospective study was conducted by including 42 male elastaseinduced mouse AAA models.The IH incidence,aortic diameters with or without IH,and hyperplasia lesional features of mice were analyzed.Among 42 elastase-induced AAA mouse models,10 mice developed mild IH(24%)and severe IH was found in only 2 mice(5%).The outer diameters of the AAA segments in mice with and without IH did not show significant difference.Both mild and severe IH lesions show strong smooth muscle cell positive staining,but endothelial cells were occasionally observed in severe IH lesions.There was obvious macrophage infiltration in the IH lesions of the AAA mouse models,especially in mice with severe IH.However,only a lower numbers of T cells and B cells were found in the IH lesion.Local cell-secreted matrix metalloproteinases(MMP)2 was highly expressed in all IH lesions,but MMP9 was only overexpressed in severe lesions.In conclusion,this study is the first to demonstrate the occurrence of aneurysmal IH and its histological characteristics in an elastaseinduced mouse AAA model.This will help researchers better understand this model,and optimize it for use in AAA-related research.

In situ formation of an intimate solid-solid interface by reaction between MgH_(2) and Ti to stabilize metal hydride anode with high active material content

MgH_(2) and TiH_(2) have been extensively studied as potential anode materials due to their high theoretical specific capacities of 2036 and 1024 mAh/g,respectively.However,the large volume changes that these compounds undergo during cycling affects their performance and limits practical applications.The present work demonstrates a novel approach to limiting the volume changes of active materials.This effect is based on mechanical support from an intimate interface generated in situ via the reaction between MgH_(2) and Ti within the electrode prior to lithiation to form Mg and TiH_(2).The resulting Mg can be transformed back to MgH_(2) by reaction with LiH during delithiation.In addition,the TiH_(2) improves the reaction kinetics of MgH_(2) and enhances electrochemical performance.The intimate interface produced in this manner is found to improve the electrochemical properties of a MgH_(2)-Ti-LiH electrode.An exceptional reversible capacity of 800 mAh/g is observed even after 200 cycles with a high current density of 1 mA/cm^(2) and a high proportion of active material(90 wt.%)at an operation temperature of 120℃.This study therefore showcases a new means of improving the performance of electrodes by limiting the volume changes of active materials.

Windows实时扩展技术研究

Windows操作系统不能直接应用于实时领域。为此,从体系结构、基本系统策略、系统可靠性、实时应用程序开发难度和系统性能等方面,分析比较Windows实时扩展的2个典型产品——RTX和INtime。在此基础上,提出一种基于操作系统自适应域环境的Windows实时扩展方法。理论分析结果表明,该方法的灵活性、可靠性和可移植性优于目前常用方法。

In-situ preparation of TiO_(2)/N-doped graphene hollow sphere photocatalyst with enhanced photocatalytic CO_(2) reduction performance

Photocatalytic CO_(2)conversion efficiency is hampered by the rapid recombination of photogenerated charge carriers.It is effective to suppress the recombination by constructing cocatalysts on photocatalysts with high-quality interfacial contact.Herein,we develop a novel strategy to in-situ grow ultrathin/V-doped graphene(NG)layer on TiO_(2) hollow spheres(HS) with large area and intimate interfacial contact via a chemical vapor deposition(CVD).The optimized TiO^(2)/NG HS nanocomposite achieves total CO_(2)conversion rates(the sum yield of CO,CH_(3)OH and CH_(4))of 18.11μmol·g^(-1)h^(-1),which is about 4.6 times higher than blank T1O_(2)HS.Experimental results demonstrate that intimate interfacial contact and abundant pyridinic N sites can effectively facilitate photogenerated charge carrier separation and transport,realizing enhanced photocatalytic CO_(2)reduction performance.In addition,this work provides an effective strategy for in-situ construction of graphene-based photocatalysts for highly efficient photocatalytic CO_(2)conversion.

Morphology of the ascending aorta: a study on 114 Chinese patients

Purpose: This study aimed to investigate the morphological characteristics of ascending aortic dissection in detail. Materials and Methods: The ascending aorta was morphologically assessed in a consecutive series of patients between January 2009 and October 2014. A new assessment and evaluation method was used to describe 114 patients with ascending aortic dissection. Results: A large difference was found in the degree of curvature between the ascending aorta with and without dissection. The shape of the former was straighter and steeper(control group R, 47.46 ± 6.40 mm; experimental group R, 59.70 ± 10.27 mm, P < 0.001). In the case of aortic dissection involving the valves, the proximal edge of the first entry was obviously close to the aortic sinus. The orientation of the entries was mainly around the 10 o'clock and 1–2 o'clock positions, and most of their shapes were fusiform(111; 70.02%). The distance of the distal extending dissection was associated with cases involving the branch arteries(involving three branches 441.40 ± 101.13 mm vs 159.85 ± 131.86 mm in others, P < 0.001). Conclusion: The morphological features of the ascending aorta after dissection and the correlations among dissections, entries, and related factors were found.

Atomically bonding Na anodes with metallized ceramic electrolytes by ultrasound welding for high-energy/power solid-state sodium metal batteries

A solid-state sodium metal battery has cut a striking figure in next-generation large-scale energy storage technology on account of high safety,high energy density,and low cost.Nevertheless,the large interfacial resistance and sodium dendrite growth originating from the poor interface contact seriously hinder its practical application.Herein,a modified ultrasound welding was proposed to atomically bond Na anodes and Au-metalized Na_(3)Zr_(2)Si_(2)PO_(12) electrolytes associated with the in situ formation of Na–Au alloy interlayers.Thereupon,intimate Na_(3)Zr_(2)Si_(2)PO_(12)-Au/Na interfaces with a low interfacial resistance(~23Ωcm^(2))and a strong dendrite inhibition ability were constructed.The optimized Na symmetric battery can cycle steadily for more than 900 h at 0.3 mA cm^(-2) under a low overpotential(<50 mV)of Na electroplating/stripping and deliver a high critical current density of 0.8 mAcm^(-2) at room temperature.By incorporating the above interface into the solid-state Na metal battery,taking three-dimensional Na_(3)V_(2)(PO_(4))_(3) as the cathode,the full battery offers a high energy density of 291 Wh kg^(-1) at a high power density of 1860Wkg^(-1).A pouch-type solid-state sodium metal full battery based on a ceramic electrolyte was assembled for the first time,and it lit a 3 V LED lamp.Such a strategy of the ultrasound welding metalized solid-state electrolyte/Na interface by engineering the Na-Au interlayer would pave a new pathway to engineer a low-resistance and highly stable interface for high-energy/density solid-state sodium metal batteries.

Massive gastrointestinal bleeding: An unusual case of asymptomatic extrarenal, visceral, fibromuscular dysplasia

Extrarenal fibromuscular dysplasia causing gastro- intestinal bleeding without other manifestations and especially sparing renal vasculature is uncommon. The diagnosis of this entity is usually made by radiographic appearance and the treatment is controversial. To our knowledge only seven cases of visceral fibromuscular dysplasia as a primary manifestation of the disease have been described, symptoms range from abdominal pain to gangrene. This is the first case of visceral fibromuscular dysplasia presenting with otherwise asymptomatic gastrointestinal bleeding, without bowel necrosis or ischemic changes. We provide a review of the literature.

Misdiagnosis of primary intimal sarcoma of the pulmonary artery as chronic pulmonary embolism: A case report

BACKGROUND Primary intimal sarcoma of the pulmonary artery is a rare malignant tumor originating from the pulmonary artery,which has a low incidence rate and is easily misdiagnosed as pulmonary embolism.There is no standard protocol for the treatment of primary intimal sarcoma of the pulmonary artery.CASE SUMMARY This study reports a patient with primary intimal sarcoma of the pulmonary artery who was admitted to our hospital in 2017.The clinical characteristics,diagnosis,treatment and outcome of the patient were retrospectively analyzed.The patient was a Chinese Han male aged 44 years.He had three consecutive episodes of syncope,and was thus admitted to a local hospital.Computed tomography pulmonary angiography showed multiple lesions with abnormal densities in the pulmonary trunk,left pulmonary artery,mediastinum and pericardium,which were consistent with recurrence after tumor resection.He underwent surgery,and was pathologically diagnosed with intimal sarcoma of the pulmonary artery.He relapsed 3 mo after surgery,and apatinib was administered.His condition was stable after 4 mo,with tolerable and controllable adverse reactions.He subsequently died 19 mo after surgery.CONCLUSION Primary intimal sarcoma of the pulmonary artery has no specific clinical or imaging manifestations.The diagnosis of this disease depends on histopathology and immunohistochemistry,and has a poor clinical prognosis.Surgical treatment is currently a favorable option for primary intimal sarcoma of the pulmonary artery,and targeted therapy may provide new insights for the development of effective treatment methods.

Sulfide-Based Nickel-Plated Fabrics for Foldable Quasi-Solid-State Supercapacitors

Smart wearable market is burgeoning,and flexible energy storage is crucial to cope with its development.The commonly-used metal-based current collectors are heavy with limited flexibility.Other carbon-based current collectors are expensive and fragile.Moreover,the poor interface between active material and current collector leads to unsatisfactory stability.Herein,these two issues are attempted to be solved by using cheap and lightweight polyester-based fabrics as well as in-situ growth.A deposited thin layer of nickel on the fabrics not only enhances the conductivity,but also serves as the sacrificial precursor for the growth of active materials.Thus,intimate contact is secured via chemical bonding.The electrode with ternary(metalinorganic-organic)component shows excellent electrochemical performance.Namely,high areal capacity is realized(2.2 C cm^(-2)at 2 mA cm^(-2)),which is far superior to its rigid nickel-foam-based counterpart.Furthermore,an allsolid-state supercapacitor device was assembled.The device provides an areal capacity of 2.03 C cm^(-2)at the current density of 2 mA cm^(-2).It realizes an energy density of 0.45 mWh cm^(-2)when the power density is 1.6 mW cm^(-2).This work offers a feasible and cost-efficient way for fabricating electrode materials with excellent performance for portable supercapacitors.

Exploring the Feasibility of Text Messaging Intervention in Intimate Partner Violence

Introduction: Intimate Partner Violence (IPV) is defined as controlling, abusive, and aggressive behavior in a romantic relationship. Women between the ages 16 and 24 experience the highest rate of IPV. IPV costs US society at least $13.6 billion annually and is expected to rise to $15.6 billion by 2021. The purpose of this study is to explore the feasibility of Text Messaging Intervention (TMI) in recognizing, responding and preventing IPV among college students. The research questions are: Will TMI 1) improve participant knowledge of warning signs of IPV? (Knowledge) and 2) improve participant confidence to intervene in IPV? (Confidence). Methods: A mixed methods design in data collection and data analysis was used. One-way ANOVA and Chi-square test were used to analyze quantitative data from the pre and post TMI survey. Results of the qualitative data analysis are included verbatim. Results: Results showed that knowledge level pre to post test increased from 2.00 ± 1.00 to 2.7 ± 0.48 (p < 0.001) and confidence level pre to post test increased from 2.89 ± 0.60 to 3.30 ± 0.68 (p < 0.001). Conclusions: Further research is needed in evaluating the feasibility and effectiveness of IPV prevention programs that uses mobile devices to create the best optimal health outcomes.

Intimate partner violence:A loop of abuse,depression and victimization

Intimate partner violence has been recognized as a serious public health issue.Exposure to violence contributes to the genesis of,and exacerbates,mental health conditions,and existing mental health problems increase vulnerability to partner violence,a loop that imprisons victims and perpetuates the abuse.A recently described phenomenon is when male violence against females occurs within intimate relationships during youth,and it is termed adolescent or teen dating violence.In this narrative review,factors associated with intimate partner violence and consequences of exposure of children to parental domestic violence are discussed,along with possible intensification of violence against women with the spread of coronavirus disease 2019 pandemic and subsequent lockdown.Intervention programs with a multicomponent approach involving many health care settings and research have a pivotal role in developing additional strategies for addressing violence and to provide tailored interventions to victims.Prevention policy with a particular attention on healthy child and adolescent development is mandatory in the struggle against all forms of violence.

Improvement of the Fit of Bra Prototypes Developed Based on the Existing Bodice Blocks for Adult Women

An in-depth study of bra pattern designs based on the existing bodice blocks was conducted to improve bra fit.The two popular bra prototypes,D's and Y's prototypes developed based on the existing bodice blocks for adult women,were first analyzed to understand their structural differences.Four bra samples were created and modified with respect to the standard shape and size of 75 B female mannequin breasts to compare the fit of the two bra prototypes.The fitness of these four bra samples was then tested on the mannequin and also on a real model of the same size.The examples demonstrated in the paper illustrate the principles and procedures for designing good-fit bras,and the bodice blocks using to develop bra prototypes in this study can also be replaced and widespread applied in other kind of bodice blocks in the future.

Comparison of ultrasound-measured properties of the common carotid artery to tobacco smoke exposure in a cohort of Indonesian patients

BACKGROUND: The purpose of this study was to use point-of-care ultrasound(POCUS) to investigate the relationship between tobacco smoke exposure and the characteristics of the common carotid artery(CCA). The effect of both primary and secondary smoking on CCA properties was evaluated.METHODS: We performed a prospective cross-sectional study across 20 primary care clinics in Bandung, West Java, Indonesia in July 2016. Point of care ultrasound was performed on a convenience sample of Indonesian patients presenting to clinic. The CCA wall stiffness and carotid intima-media thickness(CIMT) were measured during diastole and systole. These measurements were correlated with smoke exposure and cardiovascular disease.RESULTS: We enrolled 663 patients in the study, with 426 patients enrolled in the smoking category and 237 patients enrolled in the second-hand smoke category. There was an overall positive correlation with the measured lifestyle factors and the ultrasound-measured variables in the group of individuals who smoked. For all variables, age seemed to contribute the most out of all of the lifestyle factors for the positive changes in CIMT and CCA wall stiffness.CONCLUSION: Our data yielded correlations between CCA properties and cardiovascular risk, as well as between CIMT and arterial stiffness. We were also able to demonstrate an increase in thickness of the CIMT in patients who have been exposed by tobacco through the use of ultrasound. Further large scale studies comparing patients with multiple cardiac risk factors need to be performed to confi rm the utility of ultrasound fi ndings of cardiovascular disease and stroke.

Mediating role of physical activity in the relationship between psychological distress and intimate relationships among stroke patients

BACKGROUND Stroke patients often experience psychological distress,which can impact their intimate relationships with spouses,subsequently influencing their treatment and recovery.Physical activity is considered a key rehabilitation method for stroke patients.This paper aims to analyze whether psychological distress affects intimate relationship between spouses through physical activity.AIM To explore the mediating effect of physical activity between psychological distress and intimate relationship in stroke patients.METHODS A total of 256 stroke patients who underwent treatment at the First People’s Hospital of Shangqiu between July 2021 and July 2022 were enrolled in this study.The participants completed questionnaires,including the Kessler Psychological Distress Scale(K10),the Quality of Relationship Index(QRI),International Physical Activity Questionnaire,and a general information questionnaire.Data analysis were performed using SPSS 23.0.The Harman test was employed to detect common method deviations,and Spearman correlation was used for correlation analysis.The mediating effect was assessed using Process 3.4.1,with significance testing of the regression coefficients conducted using the bias-corrected percentile Bootstrap method(5000 iterations,95%confidence interval).Statistical significance was set at P<0.05.RESULTS The results showed that patients scored an average of 21.61±6.44 points on the K10,32.40±6.19 points on the QRI;the median physical activity level according to the International Physical Activity Questionnaire was 1861(566,2846)MET·min/w.The level of physical activity(the physical activity intensity of the patients reflected by the Interna-tional Physical Activity Questionnaire-Long Form scale)negatively correlated with psychological distress and intimacy(P<0.05),and positively correlated with each other(P<0.05),with the correlation stronger at lower physical activity levels compared to higher ones.The mediating effect of physical activity between psychological distress and intimate relationship was calculated to be 40.23%.Bootstrap analysis further validated the results.The mediating effect of psychological distress on intimate relationships through physical activity level was-0.284,with a confidence interval of-0.409 to-0.163,excluding 0,confirming a significant mediating effect of psychological distress on intimate relationships.CONCLUSION Physical activity significantly affects relationship between psychological distress and intimate relationships among stroke patients.Addressing the role of physical activity may have implications for improving patient outcomes and rehabilitation strategies.