Abstract: A quantum dot material includes: quantum dot bodies and a ligand material coordinated to the quantum dot bodies; the quantum dot material further includes: a cross-linking agent, the cross-linking agent includes at least two photoresponsive group and a linking group bonding the at least two photoresponsive groups. Under light illumination, each photoresponsive group in the at least two photoresponsive groups is bonded to the ligand material by a carbon-hydrogen insertion reaction to form a cross-linked ligand material; a solubility of the cross-linked ligand material in a solvent is less than a solubility of the ligand material and the cross-linking agent in the solvent.

Abstract: The present disclosure relates to the field of microorganisms, and specifically relates to a sulfamethoxazole-degrading Pseudomonas silesiensis strain and an application thereof. The strain is preserved at the China Center for Type Culture Collection, has the preservation number: CCTCC No: M2021338, and was preserved on 6 Apr. 2021. The present strain has a strong ability to degrade sulfamethoxazole, and SMX removal of approximately 75% or more may be achieved in an R2A culture medium; additionally, said strain is also a type of electrochemically active bacterium.

Abstract: Embodiments relate to type-I PLLs that do not lock at a sub-harmonic frequency of a reference clock signal by controlling timing of charging or discharging of one or more capacitors in the PLLs. A phase frequency detector (PFD) of a type-I PLL can prevent sub-harmonic locking by generating a clear output signal to cause a sampling capacitor of PLL's loop filter to discharge only during a time period when the sampling capacitor is not being charged. For example, the PFD can include a gating element to control the time during which the clear output signal is generated. By ensuring that the sampling capacitor is not discharged during a time period while it is being charged, the PLL's voltage-controlled oscillator is controlled to oscillate at an intended frequency rather than at a sub-harmonic of the intended frequency.

Abstract: Embodiments relate to type-I PLLs that do not lock at a sub-harmonic frequency of a reference clock signal by controlling timing of charging or discharging of one or more capacitors in the PLLs. A phase frequency detector (PFD) of a type-I PLL can prevent sub-harmonic locking by generating a clear output signal to cause a sampling capacitor of PLL's loop filter to discharge only during a time period when the sampling capacitor is not being charged. For example, the PFD can include a gating element to control the time during which the clear output signal is generated. By ensuring that the sampling capacitor is not discharged during a time period while it is being charged, the PLL's voltage-controlled oscillator is controlled to oscillate at an intended frequency rather than at a sub-harmonic of the intended frequency.