Results 61 to 70 of about 154,590 (258)

From Geometry to Function: Programmable Mechanical Response in 3D‐Printed Adipose‐Inspired Soft Metamaterials

open access: yesAdvanced Functional Materials, EarlyView.
Geometry‐driven design of soft cellular metamaterials is systematically investigated by combining experiments, finite element modeling, and statistical prediction. The study quantifies how unit cell geometry and material properties govern stiffness, instability, densification, and energy absorption.
Alice Berardo   +4 more
wiley   +1 more source

Business groups - European development and trends of their legal regulation

open access: yesČasopis pro Právní Vědu a Praxi, 2006
Business groups are bodies that can be found in all economically developed countries, not only in Eu­rope. They bring their participants significant econo­mic advantages, enable the assertion of economic go­als unified with all the members of the group ...
Jarmila Pokorná
doaj  

Giant Electrostriction in Halide Perovskites Revisited With Double‐Modulation Interferometry

open access: yesAdvanced Functional Materials, EarlyView.
A giant electrostrictive effect in lead halide perovskites had been reported previously. This work uses sensitive interferometry to measure the electromechanical response of various halide perovskite samples. The results reveal no intrinsic electrostrictive compression. Instead, the materials expand primarily under an applied electric field as a result
Philipp Ramming   +4 more
wiley   +1 more source

Unfair Competition Law in the EU and in the Czech Republic (Paradoxes of the current state and the new trends)

open access: yesČasopis pro Právní Vědu a Praxi, 2006
In science, it is considers good manners to start by delimiting concepts that are to be used in one's analysis. However, good habits may turn into bad ones whenever the delimítation of key concepts becomes so thorough and detailed that little time and ...
Petr Hajn
doaj  

Halide Perovskite Integrated Photovoltaic Cathodes Incorporating Pt on ZIF‐8‐Derived Carbon for Solar Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh   +12 more
wiley   +1 more source

Effect of European Directives on Legal Regulation of the Limited Liability Company in the Czech Law

open access: yesČasopis pro Právní Vědu a Praxi, 2008
A limited liability company has the basic features of capital companies. But compared to the joint stock company, which is a typically capital company, it shows certain features evoking a personal company (for example a change of the memorandum of ...
Jarmila Pokorná
doaj  

Interface‐Defect Synergy Engineering of Amorphous Ga2O3 for Voltage‐Tunable Dual‐Mode Optoelectronic Devices: Self‐Powered Imaging and Neuromorphic Vision

open access: yesAdvanced Functional Materials, EarlyView.
An interface‐defect co‐engineered strategy enables bias‐programmable integration of self‐powered photodetection and low‐power synaptic functionalities within a single‐material amorphous Ga2O3 device. This design achieves reversible switching via voltage modulation, supporting high‐contrast imaging and visual memory, and demonstrates a neuromorphic ...
Wanjun Li   +13 more
wiley   +1 more source

Current Legal Regulation and Perspectives of Conclusion of Business Contracts in the Czech Republic

open access: yesČasopis pro Právní Vědu a Praxi, 2008
Although we positively evaluate the part of the Commercial Code that regulates business obligations, there are duplications and problems that are solved by interpretation in compliance with the extending number of international treaties and developing EC
Karel Marek
doaj  

ISLAMIC COMMERCIAL LAW

open access: yesAmerican Journal of Islam and Society, 1996
This essay is presented in two sections. Section one is devoted to a market analysis of options, and section two to a Shari'ah perspective on options trading. There is no real shortage of information in the operational procedures of options and the various ways in which options are utilized as trading vehicles and hedging and risk-reduction devices. On
openaire   +2 more sources

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