Results 161 to 170 of about 2,082,471 (408)

Study on Applications of Supply and Demand Theory of Microeconomics and Physics Field Theory to Central Place Theory [PDF]

open access: yes
This paper attempts to analyze “central place theory” of spatial economics based on “supply and demand theory” in microeconomics and “field theory” in physics, and also discuss their relationship.
Nien, Benjamin Chih-Chien
core   +1 more source

Evliya Çelebi 390 yaşında [PDF]

open access: yes, 2001
Taha Toros Arşivi, Dosya No: 179-Evliya Çelebiİstanbul Kalkınma Ajansı (TR10/14/YEN/0033) İstanbul Development Agency (TR10/14/YEN ...
Öztürk, Yaşar
core  

Halogen‐Bonded Liquid Crystal Elastomers as Initiator‐Free Photochemical Actuators

open access: yesAdvanced Materials, EarlyView.
The combination of dynamic disulfide bonds and halogen bonds in chain‐extended liquid crystal elastomers enables the fabrication of photochemical actuators without the need for a photoinitiator, advancing the design of multimodal soft actuators that can be reprogrammed and reprocessed through supramolecular functionalization.
Hongshuang Guo   +5 more
wiley   +1 more source

Confirmation of minor components of less polar neutral and acidic glycolipids in monkey brain tissue

open access: yesJournal of Lipid Research, 2001
Crude glycolipids, prepared without alkali treatment in advance, were separated into neutral and acidic glycolipids by DEAE-Sephadex A-25 (acetate form) column chromatography.
Tamotsu Taketomi   +7 more
doaj  

Sub-Cycle Interference upon Tunnel-Ionization by Counterrotating Two-Color Fields

open access: yes, 2018
We report on three-dimensional (3D) electron momentum distributions from single ionization of helium by a laser pulse consisting of two counterrotating circularly polarized fields (390 nm and 780 nm).
Dörner, R.   +14 more
core   +1 more source

Bioinspired, Rapidly Responsive Magnetically Tunable Stiffness Metamaterials

open access: yesAdvanced Materials, EarlyView.
A 3D array of magnetoactive mechanical metamaterials enables rapid and reversible stiffness modulation under external magnetic fields. By adjusting field direction and intensity, the system exhibits diverse deformation modes and tunable modulus. This fast‐responding mechanical metamaterial offers real‐time adaptability for advanced reconfigurable and ...
Gooyoon Chung   +5 more
wiley   +1 more source

Bounds on heavy sterile neutrinos revisited

open access: yes, 2005
We revise the bounds on heavy sterile neutrinos, especially in the case of their mixing with muon neutrinos in the charged current. We summarize the present experimental limits, and we reanalyze the existing data from the accelerator neutrino experiments
Alexander Kusenko   +7 more
core   +4 more sources

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