摘要:
A toner layer regulating system for an electrophotographic image forming apparatus includes a toner carrier; a toner regulating member (e.g., doctor blade) disposed proximate the toner carrier, with the toner regulating member having a first surface disposed toward the toner carrier and forming a nip with the toner carrier. The toner regulating member comprise a flexible metallic substrate and a metallic coating on the first surface in an area thereof forming the nip. The coating on the toner regulating member comprises a material selected from the group consisting of molybdenum, tungsten carbide, and alloys thereof. The coating may be substantially homogeneous and/or have a thickness of not more than 30 um. The coating may have a relatively smooth surface roughness of ≦2.0 um Ra.
摘要:
A toner layer regulating system for an electrophotographic image forming apparatus includes a toner carrier; a toner regulating member supported in cantilevered fashion against the toner carrier so as to form a toner nip therebetween comprising a flexible metallic substrate having a coating covering at least an area forming the nip; wherein the coating comprises at least a matrix of a base polymer and a plurality of fine particles having a particle size of 0.1 microns to thirty microns; wherein the coating has a thickness of approximately one hundred fifty microns or less; wherein the coating has a surface roughness in the range of 0.15 to 1.5 microns Ra and in the range of 1 to 15 microns Rz. A carrier stratum may be disposed between the coating and the substrate, and the coating may be single layer or have a plurality of layers.
摘要:
A system and method for automatic storage and serving of digital content is disclosed. One aspect of the invention involves a computer-implemented method in which a storage server in a local area network of a user: automatically receives content from a first client device associated with the user, wherein: the received content is determined in accordance with a storage server profile for the storage server, and receiving the content frees up storage space on the first client device; stores at least some of the received content; receives a request for at least some of the stored received content to be served to a second client device associated with the user; and in response to the request for at least some of the stored received content, serves the requested content to the second client device.
摘要:
Nonmetallic, chiral organic catalysts are used to catalyze the 1,4-hydride reduction of an α,β-unsaturated carbonyl compound. The α,β-unsaturated carbonyl compound may be an aldehyde or cyclic ketone, and the hydride donor may be a dihydropyridine. The reaction is enantioselective, and proceeds with a variety of hydride donors, catalysts, and substrates. The invention also provides compositions effective in carrying out the 1,4-hydride addition of α,β-unsaturated carbonyl compounds.
摘要:
Voice controlled devices with speech recognition have user assignable appliance names and default appliance names to address and control the voice controlled devices. Methods of controling voice controlled devices include addressing a voice controlled device by name and providing a command.
摘要:
A delay circit is described which automatically adjusts the propagation delay of clock signals, generated by a clock source, distributed to various receiving devices so that the receiving devices are clocked simultaneously. In one embodiment, the clock signal generated by a single clock source is independently delayed for each receiving device. To determine the proper amount of delay, a clock signal is simultaneously transmitted to each of the receiving devices and a clock return signal from each receiving device is returned to a delay circuit via a return path. The delay circuit detects the various differences in round-trip arrival times of the clock signal associated with each receiving device and fixes a particular clock signal delay for each receiving device so that subsequent clock signals will arrive at each receiving device simultaneoulsy.
摘要:
A method and logical apparatus for accomplishing the two-way authentication of two parties without the use of nonce values. In the prior art, authentication may be accomplished both through the use of stored and of generated password lists. Also from the prior art these methods may be extended by the use of “nonce” values, a subset of a larger category of “anti-replay values” (ARVs). ARVs are values which satisfy the constraints that they must be used only once, that they must be unguessable by an attacker, and that they must reveal nothing about either the entity generating them or the entity receiving them. These methods are extended here by using not nonces but “Mutual Anti-Replay Values” (MARVs), which are values which satisfy the requirements for ARVs and which, further, are known to both the authenticator and authenticatee. These MARVs may be stored or generated lists independent of the password lists maintained by the authenticator and authenticatee, or they may be derived in special ways from these password lists. The use of MARVs in this invention, rather than the nonces of the prior art, provides tamper-evidence at the authenticatee while a replay attack is underway and provides security against serial impersonation attacks, in addition to protection against eavesdropping, protection against replay attacks, and tamper-evidence at the authenticator.
摘要:
Nonmetallic, chiral organic catalysts are used to catalyze the 1,4-hydride reduction of an α,β-unsaturated carbonyl compound. The α,β-unsaturated carbonyl compound may be an aldehyde or cyclic ketone, and the hydride donor may be a dihydropyridine. The reaction is enantioselective, and proceeds with a variety of hydride donors, catalysts, and substrates. The invention also provides compositions effective in carrying out the 1,4-hydride addition of α,β-unsaturated carbonyl compounds.
摘要:
Nonmetallic, chiral organic catalysts are used to catalyze the 1,4-hydride reduction of an α,β-unsaturated carbonyl compound. The α,β-unsaturated carbonyl compound may be an aldehyde or cyclic ketone, and the hydride donor may be a dihydropyridine. The reaction is enantioselective, and proceeds with a variety of hydride donors, catalysts, and substrates. The invention also provides compositions effective in carrying out the 1,4-hydride addition of α,β-unsaturated carbonyl compounds.
摘要:
The present invention provides a bus protocol interface circuit for the peripheral units that prevents a conflict in bus requests between the peripheral units and permits bipolar drivers to be used for fast operation. The interface circuit comprises a logic means coupled to the bus acknowledgment line input terminal and the bus acknowledgment line output terminal for generating a logic output signal responsive to the signals on the bus acknowledgement line input and output terminals, and latching means coupled between the bus request line and the bus request line terminal, and further connected to the output of the logic means and the bus acknowledgment line output terminal, for latching into a state consistent with a bus request signal from any one of the peripheral units and for unlatching from the consistent state upon receipt of a bus acknowledgment signal in response to the bus request signal.