نتایج جستجو برای: rubber pad forming

تعداد نتایج: 145675  

2018
Eric Penot

The plains of Sumatra and Kalimantan were sparsely populated at the turn of the 19th century (less than 4 inhabitants/km2), and the local population relied mainly on shifting cultivation of upland rice. The introduction of rubber by Dutch private Estates in the 1910's triggered a radical change in the landscape but no fundamental change in farming practices, at least at the beginning, with the ...

2011
Hassan A. Al-Thani Ayman El-Menyar Mohammad Zubaid Wafa A. Rashed Mustafa Ridha Wael Almahmeed Kadhim Sulaiman Ahmed Al-Motarreb Haitham Amin Jassim Al Suwaidi

To describe prevalence and impact of peripheral arterial disease (PAD) in patients with acute coronary syndrome (ACS), data were collected over 5 months from 6 Middle Eastern countries. Patients were divided into 2 groups (with and without PAD). Out of 6705 consecutive ACS patients, PAD was reported in 177 patients. In comparison to non-PAD, PAD patients were older and more likely to have cardi...

Journal: :Perspectives in vascular surgery and endovascular therapy 2006
James O Menzoian

BACKGROUND Data on the natural history of peripheral arterial disease (PAD) are scarce and are focused primarily on clinical symptoms. Using noninvasive tests, we assessed the role of traditional and novel risk factors on PAD progression. We hypothesized that the risk factors for large-vessel PAD (LV-PAD) progression might differ from small-vessel PAD (SV-PAD). METHODS AND RESULTS Between 199...

2006
Victor Aboyans Michael H. Criqui James D. Knoke Paul M Ridker

Background—Data on the natural history of peripheral arterial disease (PAD) are scarce and are focused primarily on clinical symptoms. Using noninvasive tests, we assessed the role of traditional and novel risk factors on PAD progression. We hypothesized that the risk factors for large-vessel PAD (LV-PAD) progression might differ from small-vessel PAD (SV-PAD). Methods and Results—Between 1990 ...

2017
Naveed Afzal Sunghwan Sohn Christopher Scott Hongfang Liu Iftikhar J. Kullo Adelaide M. Arruda-Olson

Peripheral arterial disease (PAD) is a chronic disease that affects millions of people worldwide and yet remains underdiagnosed and undertreated. Early detection is important, because PAD is strongly associated with an increased risk of mortality and morbidity. In this study, we built a PAD surveillance system using natural language processing (NLP) for early detection of PAD from narrative cli...

2007
Alan T. Hirsch Eileen M. Harwood Emile R. Mohler Mark A. Creager Robert W. Hobson Michael H. Criqui

Background—Lower-extremity peripheral arterial disease (PAD) is associated with decreased functional status, diminished quality of life, amputation, myocardial infarction, stroke, and death. Nevertheless, public knowledge of PAD as a morbid and mortal disease has not been previously assessed. Methods and Results—We performed a cross-sectional, population-based telephone survey of a nationally r...

Journal: :Journal of dental education 2008
Edward E Hill Barry S Rubel

Most dentists are educated in rubber dam use in dental school, but there is often disparity between what is taught for various restorative procedures and what is practiced in the private sector. It is a common, although undocumented, belief that few practicing dentists routinely use rubber dam isolation. This study repeated a survey conducted in 1985 evaluating U.S. general dentists' attitudes ...

2016
Ahmad A. Madarati

BACKGROUND This survey study aimed at investigating the frequency of rubber dam use during root canal treatment, identifying influencing factors for not using it by Saudi general dental practitioners (GDPs) and endodontists. It also aimed at identifying measures that increase rubber dam usage. METHODS After obtaining an ethical approval, two pilot studies were conducted on staff members at Ta...

2014
Dongling Qi Jiannan Zhou Guishui Xie Zhixiang Wu

Existing plant types of rubber tree after planting and available tapping tree were investigated, and there were about 28 rubber plantations with different tapping years of 8 varieties “CATAS7-33-97”, “CATAS8-79”, “CATAS7-20-59”, “PR107”, “RRIM600”, “GT1”, “INA873”, “93-114” in South China. The results showed that there were six kinds of existing plant types of rubber tree after planting of rubb...

2016
Hanguang Wu Ming Tian Liqun Zhang Hongchi Tian Youping Wu Nanying Ning Guo-Hua Hu

We previously reported that the dispersed rubber microparticles in ethylene-propylenediene monomer (EPDM)/polypropylene (PP) thermoplastic vulcanizates (TPVs) are actually agglomerates of rubber nanoparticles. In this study, based on this new understanding of the microstructure of TPV, we further revealed the microstructure-properties relationship of EPDM/PP TPV during dynamic vulcanization, es...

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