Results 51 to 60 of about 545,084 (299)

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

Give me liberty or give me money: the fiscal decentralization and autonomy of regional governance in Slovakia

open access: yesEuropean Journal of Government and Economics, 2019
The aim of this study is to focus on fiscal decentralization and regional financial autonomy in Slovakia. The public administration reform and fiscal decentralization process in Slovakia ought to increase the autonomy of the multi-level governance and to
Jaroslav Mihálik   +2 more
doaj   +1 more source

Sistem Pengisian Jabatan Kepala Daerah di Indonesia Menurut Asas Otonomi Daerah [PDF]

open access: yes, 2017
The principle of regional autonomy spawned legal norms stating that based on the principle of regional autonomy, regional head position the charging system is done through an election by the people of the area, and without the participation of the ...
Bancin, S. (Saddam)   +3 more
core  

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

open access: yesAdvanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano   +18 more
wiley   +1 more source

KONTRIBUSI PAJAK DAERAH DAN RETRIBUSI DAERAH TERHADAP PENDAPATAN ASLI DAERAH DI DKI JAKARTA SEBELUM DAN SESUDAH OTONOMI DAERAH [PDF]

open access: yes, 2012
FAUZIAWATI. Contribution Local Tax and Local Retribution of Pure Regional Revenue in DKI Jakarta Befofe and After Local Autonomy. Faculty of Economic. State University of Jakarta. 2012. The purpose of this research get the true answer. The datas that
FAUZIAWATI, FAUZIAWATI
core  

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

open access: yesAdvanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro   +13 more
wiley   +1 more source

Regional Autonomy in Indonesia: Field Experiences and Emerging Challenges [PDF]

open access: yes, 2002
After more than three decades under a centralized national government, Indonesia decided to implement a new policy of regional autonomy that became effective on january 1st, 2001.
Usman, S. (Syaikhu), Usman, S. (Syaikhu)
core  

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

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