نتایج جستجو برای: plastic oil

تعداد نتایج: 192691  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1390

به منظور مطالعه تاثیر تاریخ کاشت بر صفات مورفولوژیکی، رشدی و کمیت و کیفیت مواد موثره بذر کرچک، آزمایشی با شش تاریخ کاشت (15 فروردین، 30 فروردین، 15 اردیبهشت، 30 اردیبهشت، 15 خرداد و 30خرداد) در قالب طرح بلوک کامل تصادفی در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه تربیت مدرس در سال 1390-1389 انجام گردید. در طول این تحقیق مراحل فنولوژیکی، فاکتورهای رشدی و مورفولوژیکی، فاکتورهای عملکردی، فاکتورهای ف...

2017
M Farid R Vaughan S Thomas

OBJECTIVE The undergraduate medical curriculum has been overcrowded with core learning outcomes with no formal exposure to plastic surgery. The aim of this study was to compare medical students from two educational settings for the basic understanding, preferred learning method, and factors influencing a career choice in plastic surgery. DESIGN AND SETTING A prospective cohort study based on ...

Journal: :Archives of facial plastic surgery 2001
R Alsarraf W F Larrabee C M Johnson

OBJECTIVE To describe the geographic and temporal trends in cosmetic facial plastic surgery procedure costs and frequency during the last decade and to evaluate factors that may influence changes in the demand for cosmetic procedures. METHODS A survey sent to every (N = 1727) active fellow, member, or associate of the American Academy of Facial Plastic and Reconstructive Surgery assessing the...

2012
M. Erol Demirseren Candemir Ceran Yakup Duman Murat Sarici

Achieving a level of technical skill and confidence in surgical operations is the main goal of plastic surgical training. Operating rooms were accepted as the practical teaching venues of the traditional apprenticeship model. However, increased patient population, time, and ethical and legal considerations made preoperation room practical work a must for plastic surgical training. There are sev...

Journal: :The Canadian journal of plastic surgery = Journal canadien de chirurgie plastique 2013
Youssef Tahiri James Lee Jonathan Kanevsky Stephanie Thibaudeau Mirko Gilardino

BACKGROUND Exposure to plastic surgery during medical school is limited. Most interested applicants form their perceptions of careers in this surgical specialty during elective rotations. OBJECTIVE To investigate the perceptions of Canadian medical students considering a career in plastic surgery. The results obtained were then compared with current Canadian plastic surgery residents' percept...

Journal: :Journal of Chemistry 2022

In this study, the impacts of co-pyrolyzing wood-based biomass from Ficus benghalensis with PET on liquid oil output, reactivity, and heating values were investigated. The effects temperature product distribution individual pyrolysis biomass-plastic ratio co-pyrolysis For pyrolysis, a maximum amount 40.8 wt (%) was obtained at 450°C. On other hand, 59.5 500°C. experiments conducted by blending ...

Journal: :Advanced sustainable systems 2023

The United States generates the most plastic waste of any country and is a top contributor to global pollution. Multiple end-of-life strategies must be implemented minimize environmental impacts retain valuable material, but it challenging compare options that generate products with different lifetimes utilities. Herein, they present material flow model equipped consequential life cycle assessm...

Journal: :Processes 2022

Currently, the resources of fossil fuels, such as crude oil, natural gas, and coal, are depleting day by due to increasing energy demands. Nowadays, plastic items have witnessed a substantial surge in manufacturing their wide range applications low cost. Therefore, amount waste is rapidly. Hence, proper management wastes for sustainable technologies need hour. Chemical recycling based on pyroly...

2012
Khang T. Nguyen Michael S. Gart John T. Smetona Apas Aggarwal Karl Y. Bilimoria John Y. S. Kim

INTRODUCTION Relative value units (RVUs) were developed as a quantifier of requisite training, knowledge, and technical expertise for performing various procedures. In select procedures, increasing RVUs have been shown to substitute well for increasing surgical complexity and have been linked to greater risk of complications. The relationship of RVU to outcomes has yet to be examined in the pla...

2012
K. Shultz R. C. Mahabir J. Song C. N. Verheyden

Background. The goals of this project were to evaluate the current perspective on letters of recommendation and to assess the need for, and acceptance of, a more standardized letter of recommendation (LOR). Methods. An eight-question survey was distributed to plastic surgery program directors. A five-point Likert scale was selected as a means of quantifying the participants' responses to the su...

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