Simulation Model of Mechanical Properties of Point - Bonded Nonwovens

A computer model for studying the mechanical properties of point - bonded nonwovens is established. The simulation tensile curve of a nonwoven fabric may be obtained based on relaxation procedure when the mechanical properties of fibers, the arrangement of bond points in the fibrous web and specimen size are inputted into the computer. Relaxation method and relevant algorithms of computer simulation are described in detail. The validity of the model is also demonstrated.

GRAPHICAL COMPUTING METHOD ON FOUR-BAR LINKAGE(1)——Inflexion Circle,Focal Axis,Ball's Point,Centering-point Curve and Circling-point Curve For Four ISPs,Coupler Curves Based on Ball's Points——

By means of programs GTMPAC based- on generalized triangle method,analysis and synthesis of mechanism design in accordance with absolutely graphicalmethod( absolutely germetrical method) are developed.In this paper,we make aspecial study about centering- point curve and circling- point curve and couplercurves based on Ball’s points.

Coupled Fixed Point for (<i>&alpha;</i>, <i>&Psi;</i>)-Contractive in Partially Ordered Metric Spaces Using Compatible Mappings

In this paper, first we introduce notions of (α, Ψ)-contractive and (α)-admissible for a pair of map and prove a coupled coincidence point theorem for compatible mappings using these notions. Our work extends and generalizes the results of Mursaleen et al. [1]. At the end, we will provide an example in support of our result.

Epidemio-Clinical, Therapeutic and Evolutive Aspects of Pulmonary Embolism in Young Subject in the Cardiology Department in Point “G” Hospital University Center Bamako

Objective: The purpose of this work was to determine the epidemiological, clinical and evolutionary aspects of the pulmonary embolism of the young person in the cardiology department of the University Hospital Center (CHU) Point G in Bamako-Mali. Methodology: This was an analytical study from January 01, 2018 to December 31, 2018 in the CHU Point G cardiology department, including all patients hospitalized during this period. Results: Of 1379 hospitalized patients, 19 patients were concerned by pulmonary embolism of the young person. The prevalence of pulmonary embolism of the young person was 1.37%. The most affected age group was 21 - 30 (47.4%) of patients. The predominance was female (89.47%) with a gender ratio of 0.11 in favour of women. The average age in the series was 29.79 years with extremes of 16 years and 40 years. Factors predisposing to pulmonary embolism were dominated by peri partum, cardiomyopathy and obesity with 47.3%, 31.57% and 21.1%, respectively. The dominant signs were chest pain and dyspnea in 94.7% and 89.5% of cases respectively. Pulmonary embolism was unlikely in 60.52% according to the Geneva and Wells score simplified. At the thoracic angioscanner, the embolism was bilateral in 52.6% of cases and distal in 36.8% of patients;in 10 patients who performed cardiac ultrasound, pulmonary arterial hypertension (70%), dilation of the right ventricle (20%) and left ventricular dilation (40%). Hyper leucocytosis (47.4%), anemia and low prothrombin rate (TP) (22.2%) were the most found biological abnormalities. More than 2/3 (68.5%) our patients had an intermediate mortality risk according to the PESI (Pulmonary Embolism Severity Index) score. The average hospital stay was 10 days. Hospital mortality was 10.5%. Conclusion: The pulmonary embolism of the young person is a frequent, serious and multifactorial pathology and the female sex is most affected especially during peri partum periods, hence the need for preventive measures. Clinical signs are not specific and based on the assessment of clinical probability. Pulmonary angioscanner remains the confirmation review in our context.

Cross-Correlation Detection of Point Sources in the WMAP First Year Data

We apply a Cross-Correlation （CC） method developed previously for detecting gamma-ray point sources to the WMAP first year data by using the Point-Spread Function of WMAP and obtain a full sky CC coefficient map. We find that the CC method is a powerful tool to examine the WMAP foreground residuals which can be further cleaned accord- ingly. Evident foreground signals are found in the WMAP foreground cleaned maps and the Tegmark cleaned map. In this process 101 point sources are detected, and 26 of them are new sources additional to the originally listed WMAP 208 sources. We estimate the flux of these new sources and verify them by another method. As a result, a revised mask file based on the WMAP first year data is produced by including these new sources.

CAS 132-2006 Standard for Flat Panel Display TV Set Installation Service Formulating and Enforcing Main Point Explanation and Analysis

CAS 132-2006 formulation background and work courses Flat panel display technology is maturing alongside the development of science and technology. The prices of flat panel display TV sets are becoming lower and lower. Flat panel display TV sets have begun entering the mainstream and are now the first choice of some consumers when making new TV purchases.Display TV Set Installation Service Point Explanation and AnalysisRepair, Retreat and Change Duty Stipulations. Peculiar use conditions, usage environments, and the practical circumstances of user consumption service requirements, etc., were also taken into account on the basis of extensive investigation, testing, and verification.……

探究电针廉泉穴对脑卒中后吞咽困难大鼠神经功能缺损的影响

目的探讨电针廉泉穴对脑卒中后吞咽困难(PSD)大鼠神经功能缺损的影响及潜在对瞬时受体电位香草酸亚型1(TRPV1)信号通路的调节机制作用。方法选用SPF级SD雄性大鼠60只,随机分为正常组12只(仅浅插栓线,未导致脑内动脉闭塞),余48只制作PSD模型,将造模成功的36只大鼠随机分为模型组、治疗组和治疗+咖啡酸组,每组12只。记录大鼠吞咽潜伏期和吞咽次数,生物信号采集器检测舌下神经放电、舌肌阈强度和收缩幅度,酶联免疫吸附测定血清P物质含量,甲苯胺蓝染色检测舌下神经核尼氏体数目,免疫组织化学检测舌下神经核TRPV1、五羟色胺(5-HT)、磷酸化p38、神经元型一氧化氮合酶(nNOS)蛋白表达水平。结果与正常组比较,模型组大鼠吞咽潜伏期、吞咽次数、舌下神经放电积分面积、舌肌收缩幅度、血清P物质含量、舌下神经核尼氏体数目、TRPV1及5-HT蛋白表达水平下降,舌肌阈强度和舌下神经核磷酸化p38、nNOS蛋白表达水平增加(P<0.05);与模型组比较,治疗组大鼠舌肌单收缩幅度、舌肌强直收缩幅度、血清P物质含量、舌下神经核尼氏体数目、TRPV1及5-HT蛋白表达水平增加[2.36±0.26 vs 1.77±0.22、3.46±0.36 vs 2.15±0.18、(3.92±0.38)ng/ml vs(1.69±0.17)ng/ml、(33.60±3.65)个vs(24.60±2.34)个、(19.85±2.11)%vs(9.79±1.07)%、(22.43±2.34)%vs(10.85±1.13)%,P<0.05]。结论电针廉泉穴可能通过激活TRPV1信号通路改善PSD大鼠神经功能缺损。

电针廉泉穴联合经颅直流电刺激对脑卒中吞咽障碍老年患者吞咽功能及长期预后的影响

目的 探讨电针廉泉穴联合经颅直流电刺激(tDCS)对脑卒中后吞咽障碍老年患者的治疗效果。方法 选择2022年7月—2023年11月在邯郸市中心医院收治的116例脑卒中后吞咽障碍老年患者作为研究对象,根据随机数字表法分为对照组和研究组,各58例。对照组采用tDCS治疗,研究组采用电针廉泉穴联合tDCS治疗。比较两组总有效率、吞咽困难情况[改良曼恩吞咽能力评估量表(MASA)]、营养指标[血清前白蛋白(PA)及白蛋白(ALB)]、表面肌电结果(肌电图吞咽时程及最大波幅)、神经损伤指标[脑源性神经营养因子(BDNF)及神经肽Y(NPY)]及长期预后指标[日常生活活动能力量表(ADL)]。结果 治疗后,研究组总有效率、MASA评分高于对照组,PA及ALB水平高于对照组,吞咽时程短于对照组,最大波幅大于对照组,BDNF高于对照组,NPY低于对照组,ADL评分高于对照组,差异均有统计学意义(P<0.05)。结论 脑卒中后吞咽障碍老年患者接受电针廉泉穴联合tDCS治疗,可有效缩短机体吞咽时程,增强吞咽功能,效果确切,有一定临床应用价值。

A new calibration model for pointing a radio telescope that considers nonlinear errors in the azimuth axis

A new calibration model of a radio telescope that includes pointing error is presented, which considers nonlinear errors in the azimuth axis. For a large radio telescope, in particular for a telescope with a turntable, it is difficult to correct pointing errors using a traditional linear calibration model, because errors produced by the wheel-on-rail or center bearing structures are generally nonlinear. Fourier expansion is made for the oblique error and parameters describing the inclination direction along the azimuth axis based on the linear calibration model, and a new calibration model for pointing is derived. The new pointing model is applied to the 40 m radio telescope administered by Yunnan Observatories, which is a telescope that uses a turntable. The results show that this model can significantly reduce the residual systematic errors due to nonlinearity in the azimuth axis compared with the linear model.

Study on the method of optimal location on explosion events at near-source site

IntroductionEarthquake location is one of the inverse problems in seismology. The accurate earthquake source location is the basis of studies of earthquake images, the relation analysis between seismicity and tectonics, and the important parameters of earthquakes. It is also the basic data used to study the space distribution of aftershocks after a strong earthquake. The earthquake location accuracy mainly depends on reliability of the velocity models for the earth￠s crust, the reasonable design of the seismograph network, the accuracy of arrival time, and the location method used (ZHAO, 1983; ZHU, ZHAO, 1997; LI, et al, 1999). The reliability of the velocity model directly influences loca-tion results. The reasonable seismograph network design can improve the location accuracy; otherwise it will in-troduce ill-conditioned equations and large location error. If arrival time is not accurate, for example, if the seismic phase is wrongly identified or the time service is inaccurate, large arrival time error will be produced, and the location results and real hypocenters will be discordant. Different location algorithms adopted will produce differ-ent location errors. The residual criterion chosen has influence on location results. Besides, whether the event is correctly associated also influences the location quality. In practice, it can often be seen that large location devia-tion introduced by wrong event association.

A New Thioamide Derivative for Separation and Preconcentration of Multi Elements in Aquatic Environment by Cloud Point Extraction

2-(pyridine-2-yl)-N-p-chlorohydrazinecarbothioamide (HCPTS) was synthesized, characterized and successfully applied for the preconcentration of Cu(II), Ni(II), Zn(II), Cd(II), Co(II), Pb(II), Fe(II), and Hg(II) in water, blood, and urine samples prior to graphite furnace atomic absorption determination (GFAAS);Hg was determined by cold vapor technique. Under the optimum experimental conditions (i.e. pH = 8, 10–4 M of HCPTS, 0.05% w/v of Triton X-114), calibration graphs were linear in the range of 0.02 to 200 ng?mL–1 for Co(II), Cd(II), Pb(II) and Ni(II);0.03 to 200 ng?mL–1 for Cu(II);0.07 to 200 ng?mL–1 for Fe(II) and Zn(II) and 0.02 to 150 ng?mL–1 for Hg(II). The enrichment factors were 43, 51, 41, 46, 54, 40, 45 and 52 for Cu(II), Ni(II),Zn (II), Cd(II), Co(II), Pb(II), Fe(II), and Hg(II), respectively. The limit of detection were found to be 0.019, 0.094, 0.0514, 0.052, 0.0165, 0.047, 0.068 and 0.041 ng?mL–1 for Cu(II), Ni(II), Zn(II), Cd(II), Co(II), Pb(II), Fe(II), and Hg(II), respectively. The developed method was applied to the determination of these metal ions in water, blood and urine samples with satisfactory results.

Observation of a diverse deviation from macropore-formation theory in silicon electrochemistry

Via anodizing patterned and unpatterned samples with a high HF concentration （[HF]）, the degree of deviation from pore-formation theory was found to be markedly different. Based on the analysis of scanning electron microscope （SEM） micrographs and current-voltage （I - V） curves, the variation of physical and chemical parameters of patterned and unpatterned substrates was found to be crucial to the understanding of the observations. Our results indicate that the initial surface morphology of samples can have a considerable influence upon pore formation. The electric-field effect as well as current-burst-model was employed to interpret the underlying mechanism.

Fixed Point Theorems of the Iterated Function Systems

In this paper, we present some fixed point theorems of iterated function systems consisting of α-ψ-contractive type mappings in Fractal space constituted by the compact subset of metric space and iterated function systems consisting of Banach contractive mappings in Fractal space constituted by the compact subset of generalized metric space, which is Mso extensively applied in topological dynamic system.

Population Spatial Distribution Based on Luojia 1-01 Nighttime Light Image:A Case Study of Beijing

With the continuous development of urbanization in China,the country’s growing population brings great challenges to urban development.By mastering the refined population spatial distribution in administrative units,the quantity and agglomeration of population distribution can be estimated and visualized.It will provide a basis for a more rational urban planning.This paper takes Beijing as the research area and uses a new Luojia1-01 nighttime light image with high resolution,land use type data,Points of Interest(POI)data,and other data to construct the population spatial index system,establishing the index weight based on the principal component analysis.The comprehensive weight value of population distribution in the study area was then used to calculate the street population distribution of Beijing in 2018.Then the population spatial distribution was visualize using GIS technology.After accuracy assessments by comparing the result with the WorldPop data,the accuracy has reached 0.74.The proposed method was validated as a qualified method to generate population spatial maps.By contrast of local areas,Luojia 1-01 data is more suitable for population distribution estimation than the NPP/VIIRS(Net Primary Productivity/Visible infrared Imaging Radiometer)nighttime light data.More geospatial big data and mathematical models can be combined to create more accurate population maps in the future.

A New Critical Value Concerning the Genealogy of Long Period Families at L_4 in the Restricted Three-body Problem

We found another critical mass ratio value -↑μ between μ4 and μ5 concerning the genealogy of the long period family around the equilateral equilibrium point L4 in the restricted three-body problem. This value has not been pointed out before. We used numerical computations to show how the long period family evolves around this critical value. The case is similar to that of the critical values between μ2 and μ4, with slight difference in evolution details.

针刺“三廉泉”配合VitalStim电刺激治疗脑梗死后吞咽障碍的疗效探析

目的:探讨针刺"三廉泉"配合VitalStim电刺激治疗脑梗死后吞咽障碍的临床疗效。方法:将入选的60例脑梗死后吞咽障碍患者随机分为治疗组和对照组,每组分别为30例,然后对两组进行疗效观察比较。结果:与对照组比较,治疗组病人在洼田饮水试验评分、吞咽功能等方面得到明显改善和提高。结论:运用针刺"三廉泉"配合VitalStim电刺激治疗能有效地改善患者吞咽功能障碍,最大程度地回归家庭、社会。

针刺与nCPAP治疗OSAHS患者疗效差异对比研究

目的:比较针刺治疗与经鼻持续气道内正压通气(nCPAP)治疗对阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者疗效的差异,分析针刺治疗对该病的疗效特点和优势。方法:将66例OSAHS患者按比例随机分为针刺组(44例,穴取廉泉、天容等)和nCPAP组(22例)进行治疗,并监测治疗前、中、后各项呼吸、血氧及睡眠指标。结果:与治疗前相比,针刺组在治疗进行中,各指标无明显差异(P>0.05),治疗结束后,对低通气指数(HI)、呼吸暂停低通气指数(AHI)、最长呼吸暂停时间、最长呼吸低通气时间、血氧饱和度低于90%的时间(SaO2<90%T)和微觉醒指数有明显改善作用,差异有显著性或非常显著性意义(P<0.05或P<0.01);而nCPAP组在治疗进行中,各指标均发生显著改善(P<0.01),治疗结束后,疗效未能维持,与治疗前差异无显著性意义(P>0.05)。2组比较,nCPAP组在治疗过程中疗效优于针刺组(P<0.05或P<0.01),治疗结束后疗效并无优势(P>0.05)。结论:nCPAP治疗对OSAHS患者的疗效发生在治疗过程中,针刺的疗效发生在治疗结束后,两者疗效体现方式的不同,可能与其作用机制的不同有关。

廉泉穴齐刺治疗脑梗死后运动性失语疗效观察

目的观察齐刺廉泉穴治疗脑梗死后运动性失语的临床疗效。方法将70例诊断明确的脑梗死后运动性失语患者随机分为治疗组和对照组,每组35例。治疗组采用廉泉穴齐刺为主治疗,对照组采用常规针刺治疗,10次为1个疗程,治疗2个疗程后观察患者汉语失语成套测试(ABC)评分和临床疗效情况。结果两组治疗后ABC评分与同组治疗前比较,差异均具有统计学意义(P<0.01)。治疗组治疗后ABC评分与对照组比较,差异具有统计学意义(P<0.05)。治疗组显效率和总有效率分别为42.9%和85.7%,对照组分别为17.1%和62.9%,两组比较差异均具有统计学意义(P<0.05)。结论廉泉穴齐刺是一种治疗脑梗死后运动性失语的有效方法。

“入世”与南京外向型经济的发展

Nanjing’s Opening - outside Economy have made great progress, but there is stilla long distance to the rules of WTO. After China’s entering WTO, the local governments and enterprises must follow the rules of WTO. This paper gives eight suggestions and strategies aimedly with an objective analysis of Nanjing’s shortages in the opening -outside economy.

TWO NEW SPECIES AND TWO NEW RECORDS OF THE GENUS ETHMIA HUBNER (LEPIDOPTERA: OECOPHORIDAE) FROM CHINA

The present paper deals with two new ethmid moths from China: Ethmia damaoshanae sp.nov. and Ethmia jingdongensis sp.nov. Another two species Ethmia dodecea (Haworth) and Ethmia ultima Sattler are reported for the first time from the country. The genitalia of the new species are figured.