摘要:
Apparatus, systems, and methods are provided for controlling the output of a transmitter using a digital error signal. A method comprises generating a digital reference signal based on a baseband input signal and converting the digital reference signal to an analog reference signal. The method further comprises generating an analog error signal in response to a difference between the analog reference signal and an analog output signal. The method further comprises generating a digital error signal from the analog error signal, and generating an input signal for the transmitter based on the baseband input signal and the digital error signal.
摘要:
An electroconductive bonding material is formed as a Modified Electrically Conductive Adhesive (MECA), and consists of a resin matrix and a modified conductive filler. The resin matrix if formed by providing a thermosetting or thermoplastic resin-based polymer resin. The conductive filler is a metal filler material suitable for use as conductive filler for the resin matrix. The metal filler is modified by applying a material selected from one of halogens, pseudohalogens or their precursors.
摘要:
The present disclosure provides the asymmetric cyanine fluorescent dyes of formula I in which X, n, R1, R2, R3, R4, R5 and Y− are as defined in the specification. The present disclosure also provides conjugates of the fluorescent dyes, methods for preparation thereof, compositions comprising the fluorescent dyes, and methods for staining biological samples using the fluorescent dyes and compositions thereof.
摘要:
The present invention pertains to the design and application of a supramolecular hydrogel having a three-dimensional, self-assembling, elastic, network structure comprising non-polymeric, functional molecules and a liquid medium, whereby the functional molecules are noncovalently crosslinked. The functional molecules may be, for instance, anti-inflammatory molecules, antibiotics, metal chelators, anticancer agents, small peptides, surface-modified nanoparticles, or a combination thereof. The design of the hydrogel includes: 1) modifying functional molecules to convert them into hydrogelators while enhancing or maintaining their therapeutic properties and 2) triggering the hydrogelation process by physical, chemical, or enzymatic processes, thereby resulting in the creation of a supramolecular hydrogel via formation of non-covalent crosslinks by the functional molecules. Applications of the present invention include use of the supramolecular hydrogel, for instance, as a biomaterial for wound healing, tissue engineering, drug delivery, and drug/inhibitor screening.
摘要:
In a wireless 802.15.4 communication system (300), a high-speed data frame structure (340) is provided which uses the 802.15.4 SHR structure that is spread modulated to obtain the synchronization benefits of the 802.15.4 protocol, but which uses a modified data frame structure for the payload portion without using spreading to thereby improve its transmission efficiency. The transmission efficiency can be further increased by increasing the size of the data payload (and correspondingly, the frame length size).
摘要:
The present invention provides for a circuit with slicing wherein a gain asymmetry variation is decreased across the plurality of mixer slices. In one or more embodiments, a calibration unit can be provided to determine the characteristics of gain asymmetry variation; and a digital compensation unit can be provided to adjust the gain of the circuit over frequency.
摘要:
A reagent for classifying and counting leukocytes containing (1) a cyanine fluorescent dye; and (2) a glycoside compound; a reagent kit containing the reagent for classifying and counting leukocytes as well as its preparation process; and a process for classifying and counting blood cells using the reagent or kit are provided. Using the reagent, kit and/or process provided, leukocytes can be classified and counted in four groups with a high degree of differentiation and a better classification among each subpopulation of leukocytes, especially in that it successfully addresses the indistinct classification between lymphocytes and monocytes and between the eosinophils and neutrophils in a scattergram.
摘要:
Optical pump modules using VCSEL arrays are provided to pump optical gain media for achieving high power laser output in CW, QCW and pulse operation modes for operation. Low divergence and symmetric far-field emission from VCSELs are particularly suitable for compact arrays. VCSEL arrays configured as laser pump modules are operable at high temperatures with practically no degradation over a long period of time. VCSEL pump modules are adaptable for side- or end-pumping configurations to pump high power lasers in CW, QCW and pulse mode. Power output from VCSEL pump modules is scalable. Incorporating microlens arrays with the VCSEL arrays improve brightness of the pump modules. High power and high temperature operation of VCSEL modules make it suitable for making compact high power solid state lasers that are operable in small spaces such as, ignition of internal combustion engines, stationary power generation engines and pulsed detonation engines.
摘要:
An adhesion bond between a metallic surface layer and a second surface is formed by treating the layers with a material comprising sulphur-containing molecules. The sulphur-containing molecules are applied as a surface treatment of the surfaces, so that the sulphur-containing molecules act as a coupling agent to bond chemically to both substrates form nanometer-sized structures on the surfaces. The nanometer-sized structures are incorporated into a self-assembly interlayer in between the surfaces, with the interlayer forming a bond to both surfaces.
摘要:
A method of creating intracellular artificial nanostructures in situ, which employees a chemical precursor. The precursor does not self-assemble due to the presence of a cleavable motif linked to it. When the precursor comes inside live cells by an uptaking mechanism on the cell membrane, the cleavable motif is then to be removed by an enzymatic action of a first enzyme. Without the cleavable motif, the precursor now engages in a self-assembling process to form nanostructures within the live cells, which may cause formation of a hydrogel. Furthermore, the self-assembling process can be made reversible by employing a second enzyme which puts the cleavable motif back to the precursor, whereby dissolving the nanostructures into solution.