摘要:
Methods and devices for magnetic profiling of target particles in a flow. There are a plurality of flow rate-reducing structures in a flow chamber. Each flow rate-reducing structure is provided with a localized magnetic attractive force, the magnetic attractive force defining a capture zone in the vicinity of the flow rate-reducing structure. The size of capture zones may be variable for different locations within the device. The magnetic attractive force, in the capture zone, is sufficiently high to overcome the drag force on a given subset of the target particles to promote capture of any particles belonging to the subset of the target particles in the capture zone. Different target particles having different magnetic susceptibility are captured in different capture zones.
摘要:
The present invention relates to cyclic amino acid molecules, in particular 1,3,4-oxadiazole containing macrocyclic peptides, and a process to produce the same. The process involves the macrocyclization of amino acids or linear peptides. Specifically, the process comprises reacting an amino acid molecule with an isocyano-iminophosphorane and an aldehyde or a ketone.
摘要:
In various embodiments described in the present disclosure, various methods and systems are introduced, that may reduce and/or eliminate the voltage spikes on the power switches by avoiding operation at zero-ripple duty ratios. In a first aspect, a method for reducing voltage spikes across switches in a multi-level converter is provided, the method comprising: receiving an error value associated with a difference between a measured output voltage and a reference output voltage; determining a target duty cycle value based at least on a control feedback loop adapted to minimize the error value; if the target duty cycle value is equal or approximately equal to one or more critical duty ratio values, controlling the operation of the multi-level converter to operate the multi-level converter with an averaging sequence, the averaging sequence adapted to, on average, result in, or sufficiently approximate, the one or more critical duty ratio values, but not operate at the one or more critical duty ratio values; and generating one or more pulse-width modulated signals to control the operation of the multi-level converter based on at least one of the target duty cycle and the averaging sequence.
摘要:
Various embodiments of the present disclosure provide metallo- dielectric low-emissivity coatings, structures coated with such low-emissivity coatings, and methods of fabrication thereof. The metallo-dielectric coatings are formed from a visibly-transparent, and heat-reflective, multi-layer structure including an transparent amorphous substrate having a nano-thin metal layer adhered thereto, wherein the nano-thin metal layer is adhered to a transparent amorphous substrate via a transparent dielectric seeding layer. The transparent amorphous dielectric layer may include amorphous carbon. Various example embodiments are disclosed in which such coatings are employed as passive or active devices, such as transparent heat mirrors, transparent resistive heaters for windows and windshields, transparent electromagnetically isolating security films, near invisible radio transceivers and transmitters.
摘要:
The flyback converter generally has a capacitive divider operatively connectable to a voltage source for receiving an input voltage, the capacitive divider having a plurality of capacitive devices connected in series from one another; a transformer having a plurality of primary windings inductively coupled to at least one secondary winding, each one of the primary windings of the transformer being connected in parallel to a corresponding one of the capacitive devices of the capacitive divider via a switching device, each of the at least one secondary winding being connected to a forwardly biased and capacitive circuit connectable to an output load; and a controller connected to each one of the switching devices for operating the flyback converter to power the output load with the voltage source.
摘要:
Novel methods and uses for modulating immune responses are provided. The methods and uses involve the use of a TIFA activator such heptose-1,7- 5 bisphosphate or an analogue or derivative thereof. The methods may be used to activate, inhibit or otherwise modify an immune response so as to either prevent or treat infectious or inflammatory diseases or cancer. Also provided are methods to identify compounds capable of modulating immune responses. -69-
摘要:
The present application relates to amorfrutin analogs and uses as PPAR modulators for the treatment of metabolic syndrome, obesity, hyperlipidemia, elevated fasting blood glucose, elevated blood pressure, low HDL cholesterol, type 2 diabetes, cardiovascular disease, a neurodegenerative disease, malaria or irritable bowel syndrome.
摘要:
The present invention relates to novel ruthenium-based triazole carbene complexes comprising specific ligands, their preparation and their use as catalysts in hydrogenation processes. Such complex catalysts are inexpensive, thermally robust, gel formation inhibiting and olefin selective.
摘要:
A method is for estimating a three-dimensional (3D) representation of a set of two-dimensional (2D) curves of a concept drawing, the estimate of the 3D representation corresponding to a 3D object underlying the concept drawing. The method comprises: obtaining a representation of a set of 2D curves a concept drawing that represent a 3D object underlying the concept drawing; determining an energy function based on the set of 2D curves, the energy function comprising one or more terms, each term reflective of a preference for a 3D representation based on a characteristic of the 2D curves which reflects how concept drawings are commonly perceived to represent 3D objects; and performing an optimization which minimizes the energy function to thereby determine the 3D representation.
摘要:
The present invention relates to methods of modifying pathogen resistance in plants and plants having modified pathogen resistance. In particular, the present invention relates to modification of expression or activity of a negative regulator of plant immunity.