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Obtaining of Nanocomposites in SiC-SiAlON and Al<sub>2</sub>O<sub>3</sub>-SiAlON System by Alumothermal Processes

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Journal of Electronics Cooling and thermal Control 2014年第4期4卷 105-117页

作者： Z. Kovziridze N. Nizharadze G. tabatadze t. Cheishvili Z. mestvirishvili E. Nikoleishvili m. mshvildadze N. Darakhvelidze Department of Chemical and Biological technologies Georgian Technical University Tbilisi Georgia

Composites were obtained in the in SiC-SiAlON and Al2O3-SiAlON system. Physical-chemical processes going on at the obtaining of SiALON within the range of 800°C - 1500°C were studied. Charge compositions and sintering regime were selected. It was proved that X-SiALON was obtained at the sintering of kaolin-aluminum powder at 1500°C, while β-SiALON was formed at the sintering of SiC-Aluminum powder, silicium and Al2O3-aluminum powder, silicium at 1500°C. Corrosion properties of the materials were studied. Investigations were performed by the methods of X-Ray structural and microscopical analysis.

关键词： Composite Silicium Carbide Corundum Silicium Nitride Aluminum Nitride mullite SiALON

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斜齿正时皮带传动的噪音和寿命

传动技术 2005年第4期19卷 34-39页

作者： H. Ueda m. Kagotani t. Koyama m. Nishioka 介眉（译） Research Fellow Department of mechaical Engineering Osaka Sangyo University Osaka Japan Professor Department of mechanical Engineering Osaka Sangyo Univesity Osaka Japan President Unitta Company Osaka Japan 不详

一种新的降低噪音的斜齿正时皮带已经被开发,本研究采用一种曲线齿廓分别设计了斜角为3°、5°和10°的三种皮带。把这些正时皮带的噪音和寿命与斜角为0°的常规正时皮带进行了比较。这些具有斜角为5°和10°的新型斜齿皮带的噪音比常... 详细信息

一种新的降低噪音的斜齿正时皮带已经被开发,本研究采用一种曲线齿廓分别设计了斜角为3°、5°和10°的三种皮带。把这些正时皮带的噪音和寿命与斜角为0°的常规正时皮带进行了比较。这些具有斜角为5°和10°的新型斜齿皮带的噪音比常规带低5 dB(A)。设置装配张力传递动力时带松边张力最低,对各型带的寿命几乎相同。本研究结果表明,在实际应用中如果噪音是关键要素,则应选用斜齿带。

关键词：斜齿正时带传动噪音寿命

Prevalence of Helicobacter pylori cagA and sabA Genotypes in Patients with Gastric Disease

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Advances in microbiology 2019年第3期9卷 239-247页

作者： Jéssica Nunes Pereira Wilson A.Orcini Rita L.Peruquetti marilia A.C.Smith Spencer L.m.Payao Lucas t.Rasmussen Universidade do Sagrado Coracao(USC) BauruBrasil Universidade Federal de Sao Paulo(UNIFESP) Sao PauloBrasil

Gastric cancer is one of the most common types of cancer worldwide. Helicobacter pylori is considered one of the most important causes of this condition specially because of its virulence markers as sabA and cagA. therefore, we aim to investigate the relation between these markers and the gastric diseases in 400 patients who underwent upper digestive endoscopy. to detect the bacteria and its genes by Polymerase Chain Reaction (PCR), the presence of H. pylori was significant when comparing the groups control vs. cancer (p value vs. chronic gastritis (p value cagA was statistically significant considering its presence when comparing the chronic gastritis vs. cancer groups (p value = 0.0434) OR [95% CI] 2.44 (1.021 - 5.845). Associating both sabA and cagA, we found a statistically significant result (p value vs. cancer groups. Helicobacter pylori is directly associated to gastric diseases such as gastritis and cancer and its virulence markers: sabA and cagA increase the injury process to the gastric epithelium making the host more susceptible to cancer.

关键词： Stomach Neoplasms Helicobacter pylori sabA cagA

Pre-Weaning Growth traits in Nigerian Indigenous Pig Crossbreds

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Agricultural Sciences 2014年第10期5卷 891-896页

作者： O. O. Oluwole A. K. tiamiyu t. O. Olorungbounmi m. O. Oladele-Bukola N. A. Akintoye Institute of Agricultural Research and training Obafemi Awolowo University Ile-Ife Nigeria

Forty-seven hybrid progenies from crossbreeding between the Nigerian indigenous pig (NIP) and Large white pigs were used. Body measurements and live weight were recorded weekly from first week of birth to their weaning date. Body measurements taken were Body Weight (BW), Body Length (BL), Body Height (BH), Heart girth (HG) and Rump circumference (RC) of crossbred progenies. the correlation between the reproductive parameters and growth performance of hybrid pigs were established with good management practice. the mean for weaning weight was 6.72 ± 0.02, birth weight 0.91 ± 0.13, litter size at birth 5.36 ± 1.87, litter size at weaning 5.29 ± 1.97, litter weight at birth 4.56 ± 1.57, total litter weight at weaning 33.91 ± 11.6, average daily weaning weight 0.73 ± 0.12, average litter size at birth 0.93 ± 0.11 and sex ratio 97.78% ± 8.61%. the male and female mean values for weight of animals were 6.96 ± 1.0 and 6.52 ± 0.9 with male heavier in weight and higher in morphometric traits such as body length, heart girth and rump circumference, while the female were high in morphometric traits such as snout length, ear length and body height. the correlation matrix for body weight against linear body measurements in pre-weaned NIP crossbreds indicates that all the parameters could be used to select for body weight. the linear equation generated by regressing body weight on snout length, body height, rump circumference, heart girth and body length could be used by resource poor pig farmers in the estimation of body weight of pre weaned crossbreds pigs if they cannot afford weighing scales.

关键词： morphometric measurement Hybrid Crossbreeding Correlation Nigerian Indigenous Pigs

Development and pilot implementation of a patient-oriented discharge summary for critically Ill patients

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World Journal of Critical Care medicine 2022年第4期11卷 255-268页

作者： Anmol Shahid Bonnie Sept Shelly Kupsch Rebecca Brundin-mather Danijela Piskulic Andrea Soo Christopher Grant Jeanna Parsons Leigh Kirsten m Fiest Henry t Stelfox Department of Critical Care medicine University of CalgaryCalgary T2N 4Z6AlbertaCanada Department of Psychiatry Hotchkiss Brain InstituteCalgary T2N 4Z6AlbertaCanada School of Health Administration Dalhousie UniversityHalifax B3H 4R2Nova ScotiaCanada

BACKGROUND Patients leaving the intensive care unit(ICU)often experience gaps in care due to deficiencies in discharge communication,leaving them vulnerable to increased stress,adverse events,readmission to ICU,and *** facilitate discharge communication,written summaries have been implemented to provide patients and their families with information on medications,activity and diet restrictions,follow-up appointments,symptoms to expect,and who to call if there are *** written discharge summaries for patients and their families are utilized frequently in surgical,rehabilitation,and pediatric settings,few have been utilized in ICU *** to develop an ICU specific patient-oriented discharge summary tool(PODS-ICU),and pilot test the tool to determine acceptability and *** Patient-partners(i.e.,individuals with lived experience as an ICU patient or family member of an ICU patient),ICU clinicians(i.e.,physicians,nurses),and researchers met to discuss ICU patients’specific informational needs and design the PODS-ICU through several cycles of discussion and iterative *** team nurses piloted the PODS-ICU with patient and family participants in two ICUs in Calgary,***-up surveys on the PODS-ICU and its impact on discharge were administered to patients,family participants,and ICU *** most participants felt that their discharge from the ICU was good or better(n=13;87.0%),and some(n=9;60.0%)participants reported a good understanding of why the patient was in *** participants(n=12;80.0%)reported that they understood ICU events and impacts on the patient’s *** many patients and family participants indicated the PODS-ICU was informative and useful,ICU nurses reported that the PODS-ICU was“not reasonable”in their daily clinical workflow due to“time constraint”.CONCLUSION the PODS-ICU tool provides patients and their families with essential information as they discharge from the *** tool has

关键词： Discharge tool Patient discharge summary Patient communication Family communication transitions in care Intensive care unit

匈牙利、波兰和俄罗斯职工收购中的公司治理和资本问题

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经济社会体制比较 1997年第3期 29-35页

作者： I.费拉多切夫 I.格罗斯费尔德 J.卡赛 m.莱特 t.巴克

匈牙利、波兰和俄罗斯职工收购中的公司治理和资本问题Ｉ·费拉多切夫Ｉ·格罗斯费尔德Ｊ·卡赛Ｍ·莱特Ｔ·巴克中东欧正在通过多种机制实施广泛的私有化，但职工收购（ｂｕｙ－ｏｕｔｓ）方式的相对重要性在各国有所不同。俄罗斯私有... 详细信息

匈牙利、波兰和俄罗斯职工收购中的公司治理和资本问题Ｉ·费拉多切夫Ｉ·格罗斯费尔德Ｊ·卡赛Ｍ·莱特Ｔ·巴克中东欧正在通过多种机制实施广泛的私有化，但职工收购（ｂｕｙ－ｏｕｔｓ）方式的相对重要性在各国有所不同。俄罗斯私有化主要是职工收购，而在匈牙利和波兰...

关键词：职工收购公司企业资本匈牙利波兰俄罗斯

热交换多孔圆盘间三阶流体的mHD轴对称流动

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应用数学和力学 2012年第6期33卷 710-725页

作者： t·哈亚特 A·沙菲克 m·纳瓦兹 A·艾沙伊迪黄锋(译) 张禄坤(校) 真纳大学数学系45320 伊斯兰堡44000巴基斯坦空间技术研究院人文与科学系伊斯兰堡44000巴基斯坦阿卜杜勒阿齐兹国王大学科学院数学系沙特阿拉伯不详

在两个具有热交换可渗透的多孔圆盘之间,研究三阶流体的磁流体动力学(mHD)流动.通过适当变换,将偏微分的控制方程转换为常微分方程.采用同伦分析法(HAm)求解转换后的方程.定义了均方残余误差的表达式,并选择了最佳的、收敛的控制参数值... 详细信息

在两个具有热交换可渗透的多孔圆盘之间,研究三阶流体的磁流体动力学(mHD)流动.通过适当变换,将偏微分的控制方程转换为常微分方程.采用同伦分析法(HAm)求解转换后的方程.定义了均方残余误差的表达式,并选择了最佳的、收敛的控制参数值.检测了无量纲参数变化时的无量纲速度和温度场.列表显示表面摩擦因数和Nusselt数,并分析了无量纲参数的影响.

关键词：热交换轴对称流动三阶流体多孔圆盘表面摩擦因数 Nusselt数

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狭缝射流撞击圆柱表面的湍流特性实验研究

力学学报 2005年第2期37卷 135-140页

作者：刘明侯 t.L.Chan 中国科学技术大学热科学与能源工程系合肥230027 香港理工大学机械工程系

实验研究了狭缝射流撞击圆柱表面后壁面射流区的平均流动和湍流特性.考察了雷诺数Re(6000～20000),喷口到受撞表面距离Y/W(5～13),喷口宽度W(6.25mm,9.38mm),受撞表面曲率(半圆柱体直径D=150mm)对流动和湍流结构的影响.通过分析X热线在... 详细信息

实验研究了狭缝射流撞击圆柱表面后壁面射流区的平均流动和湍流特性.考察了雷诺数Re(6000～20000),喷口到受撞表面距离Y/W(5～13),喷口宽度W(6.25mm,9.38mm),受撞表面曲率(半圆柱体直径D=150mm)对流动和湍流结构的影响.通过分析X热线在壁面射流区的测量结果发现,在近壁区域,表面曲率、Rew,Y/W和S/W等参数对√u2/Um的影响比对√-v2/Um强,并且切应力-uv/U2m对表面曲率变化最敏感.当喷口与受撞击表面之间的距离Y/W在一定范围内增加时,沿圆柱表面流动的流向和横向的湍流强度增强.用平板射流和圆柱体表面壁面射流的数据进行比较,从而得到表面曲率对壁面射流特性的影响.结果表明,曲率对壁面射流的影响较强,并随着S/W的增大而增强.随着雷诺数的增大,壁面曲率的影响也有强化的趋势.

关键词：狭缝射流曲率影响湍流特性壁面射流半圆柱表面

Prevalence of HIV among Adolescent Children in Abuja, the Federal Capital territory, Abuja Nigeria

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Open Journal of Epidemiology 2019年第4期9卷 321-328页

作者： S. B. mohammed Y. Ya’aba m. Njoku m. C. Abarike K. S. Izebe m. N. Ezeunala m. Usoroh E. Asawa K. t. Olatunji A. R. Abdulmumin P. Oladosu O. P. Adigwe National Institute for Pharmaceutical Research and Development (NIPRD) Abuja Nigeria

Adolescents in Africa have low HIV testing rates. Determining the HIV prevalence among this group is very important because adolescents living with HIV (ALHIV) have worse health outcome than other populations of people living with HIV. this study aimed at determining the prevalence of HIV among children of adolescents age (10 - 18 years) that come for HIV testing in virology laboratory of National Institute for Pharmaceutical Research and Development, Abuja from January 2013 to December 2018. the result was expressed in percentage and disaggregated by sex. Out of 533 adolescents tested over 6 years, 252 (51.9%) females and 234 (48.1%) were males. A total of 69 (14.1%) of them were tested HIV positive which 42 (8.6%) were females and 27 (5.5%) were males. the result of this study indicates that there is epidemics of HIV among adolescents living in Federal Capital territory Abuja. It is also evident that females are more vulnerable to HIV infection than the males. there is therefore need for urgent standard and comprehensive procedure for adolescents living with HIV transitioning from paediatric to adult care. this also calls for intensive enlightment on HIV education especially in our basic and post basic schools in Abuja.

关键词： Adolescent Abuja Prevalence Paediatric HIV