Results 61 to 70 of about 660,302 (265)

Propagación in vitro de encinos mexicanos (Quercus spp.)

Polibotánica, 2015
Con el fin de ofrecer una alternativa a los sistemas convencionales de propagación, se desarrolló un protocolo para la multiplicación in vitro de cuatro especies mexicanas deQuercus, las cuales son explotadas para la producción de madera y carbón y están
Jose Silvestre Delgadillo-Díaz de León, Jose Francisco Morales-Domínguez, María del Socorro Santos-Díaz, Eugenio Pérez-Molphe-Balch   +3 more
doaj  

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

Advanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann, Andre Danzig, Freerk Syassen, Rainer Fechte‐Heinen, Anastasiya Toenjes   +4 more
wiley   +1 more source

Ampliación de la descripción y aspectos taxonómicos de Heliopsis longipes (Asteraceae: Heliantheae)

Polibotánica, 2015
Heliopsis longipeses la especie con mayor importancia económica de su género, pues su raíz tiene varios usos tradicionales en México. Sin embargo, aún se desconocen algunos aspectos de su morfología y biología.
Virginia Gabriela Cilia-López, Juan Antonio Reyes-Agüero, Juan Rogelio Aguirre-Rivera, Bertha Irene Juárez-Flores   +3 more
doaj  

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

FUNGI ASSOCIATED WITH THE DECLINE OF THE MANZANITA (ARCTOSTAPHYLOS PUNGENS HBK.) IN THE SIERRA FRIA FROM AGUASCALIENTES STATE, MEXICO

Polibotánica, 2015
La manzanita (Arctostaphylos pungens) es un arbusto que se encuentra con regularidad en la Sierra Fría del estado de Aguascalientes, México. Este arbusto, al igual que otras plantas silvestres, es afectado por factores bióticos, como las enfermedades ...
O. Moreno-Rico, G.J. Marmolejo-Monsivais, G Sánchez-Martínez, R. Díaz-Moreno, J.J. Luna-Ruíz, J. Sosa-Ramírez, K.J. Pérez-Hernández, C. E. Moreno-Manzano   +7 more
doaj  

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Investigation of the accuracy of constructing digital elevation models of technogenic massifs based on satellite coordinate determinations

Записки Горного института
At all stages of the life cycle of buildings and structures, geodetic support is provided by electronic measuring instruments – a laser scanning system, unmanned aerial vehicles, and satellite equipment.
Mikhail Ya. Bryn, Murat G. Mustafin, Dinara R. Bashirova, Bogdan Yu. Vasilev   +3 more
doaj  

Evaluación de la actividad antibacteriana de los extractos hexánicos de las inflorescencias de palmas comestibles de la sierra de Tabasco, México

Polibotánica, 2015
Con el objetivo de buscar alternativas para la prevención y tratamiento de infecciones de origen alimentario, la actividad antibacteriana de los extractos crudos de dos palmas (Astrocaryum mexicanumLiebm. ex Mart.
Dora Centurión-Hidalgo, Judith Espinosa-Moreno, Alberto Mayo-Mosqueda, Aida Frías-Jiménez, Jose Rodolfo Velázquez-Martínez   +4 more
doaj  

Association between carpal height ratio and ulnar variance in normal wrist radiography

BMC Musculoskeletal Disorders
Introduction The wrist joint is a complex anatomical structure, and various radiographic parameters are utilized to assess its normal alignment and orientation. Among these parameters are carpal height ratio (CHR) and ulnar variance (UV).
Anas AR Altamimi, Monther A. Gharaibeh, Muntaser Abu Shokor, Moh’d S. Dawod, Mohammad N. Alswerki, Omar M. Al-Odat, Raghda H. Elkhaldi   +6 more
doaj   +1 more source