Kirjojen hintavertailu. Mukana 11 342 296 kirjaa ja 12 kauppaa.
Kirja.info

Kirjahaku

Etsi kirjoja tekijän nimen, kirjan nimen tai ISBN:n perusteella.

1000 tulosta hakusanalla Rodolfo Ratto

Wplyw proporcji wytlaczanego r-PET w filamencie

Wplyw proporcji wytlaczanego r-PET w filamencie

Andres González Hernández; Rodolfo Barragan Ramirez; Roberto Bautista García

Wydawnictwo Nasza Wiedza
2025
pokkari
W Meksyku PET jest gl wnym źr dlem zanieczyszczeń, od gleby po wodę. Strategia ponownego wykorzystania odpad w miejskich jest częścią cel w określonych w Celach Zr wnoważonego Rozwoju w agendzie 2030. Gospodarka o obiegu zamkniętym zachęca do wyceny ponownego wykorzystania odpad w, takich jak poużytkowe miejskie butelki PET. PET jest bardzo obfitym materialem odpadowym i może miec potencjal do wykorzystania w druku 3D. PET cierpi jednak na degradację hydrolityczną i sztywnośc przy zmieniających się temperaturach chlodzenia, co powoduje brak plynności materialu podczas wytlaczania. Z drugiej strony, PP jest lekkim, elastycznym polimerem o wysokiej odporności na uderzenia. Z tych powod w niniejsza praca ma na celu opracowanie mieszanek r-PET/v-PP (10,30 i 50%) z poużytkowych odpad w butelek PET, wytlaczanych do filamentu (średnica 3 mm) w celu zbadania gęstości, struktury krystalicznej i chwilowego odksztalcenia plastycznego w teście udarności w celu zwiększenia plynności PET podczas wytlaczania i zmniejszenia kruchości w procesie chlodzenia filamentu.
Vertaile hintoja
Efeito do rácio de r-PET extrudido no filamento

Efeito do rácio de r-PET extrudido no filamento

Andres González Hernández; Rodolfo Barragan Ramirez; Roberto Bautista García

Edicoes Nosso Conhecimento
2025
pokkari
No M xico, o PET a principal fonte de contamina o, do solo gua. A estrat gia de reutiliza o de res duos urbanos faz parte dos objectivos estabelecidos nos Objectivos de Desenvolvimento Sustent vel da agenda 2030. A economia circular incentiva a valoriza o da reutiliza o de res duos, como as garrafas PET urbanas p s-consumo. O PET um material residual muito abundante e pode ter potencial para ser utilizado na impress o 3D. No entanto, o PET sofre de degrada o hidrol tica e rigidez em temperaturas de arrefecimento vari veis, promovendo a n o fluidez do material durante a extrus o. Por outro lado, o PP um pol mero leve, flex vel e com elevada resist ncia ao impacto. Por estas raz es, o presente trabalho tem como objetivo formular misturas de r-PET/v-PP (10,30 e 50%) a partir de res duos de garrafas PET p s-consumo, extrudidas em filamentos (3mm de di metro) para estudar a densidade, a estrutura cristalina e a deforma o pl stica instant nea por ensaio de impacto, a fim de aumentar a fluidez do PET na extrus o e diminuir a fragilidade no processo de arrefecimento no filamento.
Vertaile hintoja
Inteligencia Emocional y Rendimiento Académico

Inteligencia Emocional y Rendimiento Académico

Leticia del Carmen Encinas Meléndrez; Jesús Rodolfo Alcántara C

Editorial Academica Espanola
2018
pokkari
La educaci n emocional es un proceso educativo continuo y permanente, que pretende potenciar el desarrollo de las competencias emocionales como elemento esencial del desarrollo integral de la persona, y con objeto de capacitarla para afrontar mejor los retos que se le plantean en la vida cotidiana. Este trabajo de investigaci n toma como referencia alumnos del s ptimo a noveno semestre de la Licenciatura en Administraci n, de la Universidad de Sonora. El objetivo es determinar la relaci n existente entre inteligencia emocional y el rendimiento acad mico de los alumnos. Los principales resultados muestran que el nivel de Inteligencia Emocional de los alumnos es bajo, y que stos identifican sus emociones y est n conscientes de las estrategias que podr an utilizar para controlarlas pero no las utilizan. Con base en lo anterior, se comprob que la Inteligencia Emocional influye en su Rendimiento Acad mico.
Vertaile hintoja
Actividad antifúngica de plantas medicinales del noroeste argentino

Actividad antifúngica de plantas medicinales del noroeste argentino

José Agustín Carabajal Torrez; José Rodolfo Soberón; Melina Araceli Sgariglia

PUBLICIA
2020
pokkari
Las infecciones f ngicas que involucran a Candida albicans se han incrementado en las ltimas d cadas, principalmente en pacientes inmunosuprimidos como los VIH positivo, en pacientes trasplantados o bajo nutrici n parenteral, o en aquellos que reciben quimio/radioterapia. Los principales antif ngicos empleados pertenecen a dos grupos: polienos (Anfotericina B) y azoles (Fluconazol), a los que se les describieron toxicidades sist micas y limitada eficacia respectivamente, por lo que es necesario encontrar opciones terap uticas m s efectivas y menos t xicas. Las plantas medicinales son fuentes promisorias de antif ngicos, Tessaria dodoneifolia y Tessaria integrifolia, son especies que crecen en el noroeste argentino, usadas medicinalmente como antimic ticas. En este libro se presentar n la metodolog a fitoqu mica empleada para realizar el aislamiento, purificaci n y caracterizaci n estructural de los metabolitos con actividad anti-c ndida.
Vertaile hintoja
Clinical Cytopathology, Third Edition

Clinical Cytopathology, Third Edition

Ibrahim Ramzy; Dina Mody; Rodolfo Laucirica

McGraw-Hill Professional
2018
sidottu
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.The field of cytopathology’s definitive text – completely updated with the latest guidelines, innovations, and referencesMore than 1,500 color pathology imagesThe Third Edition of Clinical Cytopathology: Fundamental Principles and Practice addresses the many exciting new developments in the field, and reflects the expanded role of cytologic methods in the diagnosis of disease, and in guiding the selection of the most appropriate and effective therapy measures. Presented in rich full color, this classic text is enhanced by more than 1,500 color pathology images and numerous algorithms that guide you through the process of determining whether a particular disease state is present.The first five chapters of Clinical Cytopathology address general principles of cytopathology, criteria of malignancy, and the techniques used to procure cytologic samples. These are followed by discussion of cytopathology of head and neck organs in Part II, including CNS, ophthalmic cytopathology, salivary glands, thyroid, and lymph nodes. Parts III to VI consider thoracic and abdominal systems, including respiratory, gastrointestinal, urinary and gynecologic organs, concluding with a chapter on breast cytopathology. Musculoskeletal, skin and pediatric cytopathology follow in Parts VII and VIII. The last six chapters address the latest specialized ancillary and automated techniques, as well as management and quality assurance, issues that are critical for optimal performance and safety within the laboratory.All chapters have been completely rewritten or updated to incorporate the latest innovations, guidelines, and references. Eight new chapters discuss areas where our knowledge has expanded significantly, such as pediatric cytopathology, molecular techniques, immunocytochemistry and HPV testing. The cytomorphologic characteristics are illustrated by an abundance of full-color figures, Differential diagnostic issues are emphasized for various disease entities, enhanced by the use of tables to contrast features where appropriate. Bulleted key points are included throughout the text to highlight salient aspects of the major entities, and the references‘ list in each chapter is edited to include latest critical ones, while maintaining the succinct nature of the text.
Vertaile hintoja
Nonlinear Time Series Analysis with R

Nonlinear Time Series Analysis with R

Ray Huffaker; Marco Bittelli; Rodolfo Rosa

Oxford University Press
2017
sidottu
Nonlinear Time Series Analysis with R provides a practical guide to emerging empirical techniques allowing practitioners to diagnose whether highly fluctuating and random appearing data are most likely driven by random or deterministic dynamic forces. It joins the chorus of voices recommending 'getting to know your data' as an essential preliminary evidentiary step in modelling. Time series are often highly fluctuating with a random appearance. Observed volatility is commonly attributed to exogenous random shocks to stable real-world systems. However, breakthroughs in nonlinear dynamics raise another possibility: highly complex dynamics can emerge endogenously from astoundingly parsimonious deterministic nonlinear models. Nonlinear Time Series Analysis (NLTS) is a collection of empirical tools designed to aid practitioners detect whether stochastic or deterministic dynamics most likely drive observed complexity. Practitioners become 'data detectives' accumulating hard empirical evidence supporting their modelling approach. This book is targeted to professionals and graduate students in engineering and the biophysical and social sciences. Its major objectives are to help non-mathematicians — with limited knowledge of nonlinear dynamics — to become operational in NLTS; and in this way to pave the way for NLTS to be adopted in the conventional empirical toolbox and core coursework of the targeted disciplines. Consistent with modern trends in university instruction, the book makes readers active learners with hands-on computer experiments in R code directing them through NLTS methods and helping them understand the underlying logic (please see www.marco.bittelli.com). The computer code is explained in detail so that readers can adjust it for use in their own work. The book also provides readers with an explicit framework — condensed from sound empirical practices recommended in the literature — that details a step-by-step procedure for applying NLTS in real-world data diagnostics.
Vertaile hintoja
1...47484950