Results 41 to 50 of about 12,339,723 (213)
Other title: Teen safe driving in Connecticut
Annual; "Annual Report on Effectiveness of Connecticut's Teen Driving Laws.
core +1 more source
Analysis of the Dynamic Balance Condition of Crank-group Mechanism
Aiming at overcoming the deficiency of dynamic balance of crank- group mechanism,combining the mass moment substitution method and the momentum moment substitution method,the complete balance conditions of swing force and swing torque of crank- group ...
Cao Jujiang, Wu Yao, Yan Weiliang
doaj
Efficient Polarization‐Entangled Photon‐Pair Generation by a Fiber‐In‐Line van der Waals Material
Telecom‐wavelength polarization‐entangled photon pairs are generated in a van der Waals‐material‐integrated all‐fiber device via spontaneous parametric down‐conversion. The demonstrated fiberized quantum light source bridges emerging 2D nonlinear materials and practical quantum photonic systems, opening new opportunities for scalable fiber‐based ...
Jungseok Choi +11 more
wiley +1 more source
If gears or chains provide motive-power,some automatic machineries,which need to drive a plurality of parallel axis synchronous rotate will be complicated and high-cost.To solve the problem,a new type of transmission mechanism which called the crank ...
焦楠, 张磊, 张璐
doaj
Stable radicals are attractive for photonic and quantum information technologies but are often limited by instability. We stabilize intrinsic radicals in graphene quantum dots via 2D polymerization of perylene derivatives, where bilayer defect confinement suppresses quenching (100–500 K).
Qin Xu +9 more
wiley +1 more source
This collection contains photographs and other materials from the Crank family. Lorene Lloyd McAfee Patterson grew up in Little Rock and conducted a dance school in the city for many years.
Patterson, Lorene
core +1 more source
A new type of transmission mechanism—crank-group driving mechanism and its concept,form of movement,structure and configuration,functions and characteristics,application are introduced,and the foundation for further study on it is provided.
汪玉琪, 曹巨江
doaj
Constrained Forest Methane Sink by Thermal Adaptation of Soil Methanotrophs
Climate warming can stimulate methanotroph‐mediated CH4 oxidation in forest soils, thereby mitigating the increase in atmospheric CH4 concentrations. By integrating evidence from a macro‐climatic thermal gradient and a 70‐day incubation experiment, this study demonstrates that microbial methanotrophs can adapt to long‐term temperature changes at the ...
Baizhi Jiang +5 more
wiley +1 more source
Supramolecular 1‐D, 2‐D, and 3‐D networks comprised of ‐(‐O═Xe(O2)‐‐)‐∞ and ‐(‐Xe(O2)O‐‐‐HO(H)‐‐)‐∞ chains coordinated to polytopic N‐base ligands were synthesized and structurally characterized by X‐ray crystallography. Their Xe‐‐‐N and Xe‐‐‐O bonds are characteristic of σ–hole bonds in which the nucleophilic Lewis base sites of the N‐ligands, H2O ...
James T. Goettel +2 more
wiley +2 more sources
The clearance between kinematic pairs in the crank-group driving mechanism is studied.Crank-group driving mechanism is a new type of transmission mechanism,and there must be clearance between kinematic pairs to guarantee the machining precision of the ...
汪玉琪, 曹巨江
doaj

