Results 111 to 120 of about 1,876 (297)

Estudo randômico da correção cirúrgica do prolapso uterino através de tela sintética de polipropileno tipo I comparando histerectomia versus preservação uterina

Revista do Colégio Brasileiro de Cirurgiões
OBJETIVO: Comparar os resultados anatômicos pós-operatórios de pacientes portadoras de prolapso uterino tratadas utilizando tela de polipropileno para correção dos defeitos do assoalho pélvico, comparando histerectomia vaginal com a preservação do útero.
Silvia Carramão, Antonio Pedro Flores Auge, Aparecida Maria Pacetta, Eliana Duarte, Paulo Ayrosa, Nucélio LML Lemos, Tsutomu Aoki   +6 more
doaj   +1 more source

α- and β-polypropylenes: The effects of processing on final properties

, 2015
The study directs attention towards different effects of mould temperature and holding pressure on the tensile properties of injection-moulded neat and β-nucleated polypropylenes. A commercial-grade of polypropylene was modified with a β-nucleator.
Habrová, Veronika, Beníček, Lubomír, Čermák, Roman, Obadal, Martin   +3 more
core  

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

Utilização do Sistema Prolene de Hérnia (SPH) para o reparo de hérnias inguinais

Revista do Colégio Brasileiro de Cirurgiões
OBJETIVO: Aferir complicações pós-operatórias imediatas e tardias em pacientes portadores de hérnia inguinal, submetidos à correção cirúrgica pela técnica de Gilbert1, com utilização do Sistema Prolene de Hérnia (SPH). MÉTODOS: Foram pesquisados todos os
Cláudio Corá Mottin, Rafael Jacques Ramos, Maurício Jacques Ramos   +2 more
doaj   +1 more source

Deciphering the Dynamic Balance Between Solvation Strength and Polysulfides Reaction Heterogeneity in Practical Lithium‐Sulfur Batteries

Advanced Science, EarlyView.
A weakly solvating fluorinated cosolvent (1200ET) enables precise solvation‐power regulation in Li–S batteries, decoupling interfacial stabilization from sulfur redox kinetics. This approach suppresses polysulfide dissolution while preserving reaction kinetics, leading to a stable Li metal interface and high‐energy multilayer pouch cells, revealing a ...
Huidong Dai, Pranathi Garlapati, Srinidi Badhrinathan, Luisa Gomes, Tongtai Ji, Dominik Wierzbicki, Yonghua Du, Neville Pavri, Sanjeev Mukerjee, Gaind P. Pandey   +9 more
wiley   +1 more source

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

Advanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang, Tao Jiang, Zhongyue Lu, Dapeng Fan, Zucheng Yi, Zirong Luo   +5 more
wiley   +1 more source

Structure evolution of alfa- and betha-polypropylenes upon UV irradiation: A multiscale comparison

, 2005
Vliv UV ozáření v průběhu akcelerované fotodegradace na vývoj struktury alfa a beta-polypropylénu je náplní této práce. Strukturní vývoj je sledován pomocí řady experimentálních metod na molekulární, nadmolekulární a mikroskopické úrovni.
Fraïsse, Frédéric, Commereuc, Sophie, Raab, Miroslav, Čermák, Roman, Obadal, Martin, Verney, Vincent   +5 more
core  

Synthesis of Polar-functionalized Isotactic Polypropylenes Using Commercial Heterogeneous Ziegler–Natta Catalyst

The efficient synthesis of polar-functionalized polypropylenes with high molecular weight and high stereoregularity represents a challenging task. This challenge becomes even more daunting when pursuing an industrially preferred heterogeneous process ...
Yu Wang (12152), Changle Chen (1519585), Quan Wang (31224), Chen Tan (651657)   +3 more
core   +1 more source

Investigation of flow behavior for linear melt blown polypropylenes with different molecular weights in very wide shear rate range

, 2017
In this work, three different linear polypropylenes, with melt flow rate between 450-1200 g.10min-1, have been characterized by using rotational and twin bore capillary rheometer equipped by novel inert orifice die design as well as by the instrumented ...
Zatloukal, Martin, Martyn, Mike, Mike Martyn, Jiri Drabek, Martin Zatloukal, Drábek, Jiří   +5 more
core   +1 more source

Beyond d‐Band Catalysis: A Critical Review and Descriptor Framework for Rare‐Earth Engineering in Lithium–Sulfur Batteries

Advanced Science, EarlyView.
Rare‐earth catalysts regulate lithium–sulfur battery chemistry through f‐orbital–mediated interactions, enabling simultaneous polysulfide adsorption and catalytic conversion on conductive carbon hosts. This synergistic control suppresses the shuttle effect, accelerates redox kinetics, and guides stable Li2S nucleation, providing a mechanistic framework
Fan Wang, Shihzad Shakil, Guozhi Wu, Jiarui Huang, Hanhui Lei, Terence Xiaoteng Liu   +5 more
wiley   +1 more source