摘要:
A method of synthesizing polyethyleneimine with a substantially linear backbone is disclosed. The method comprises exposing ethylenediamine dissolved in a solution to electromagnetic radiation for a sufficient time to polymerize the ethylenediamine and thereby resulting in formation of polyethylenimine with a substantially linear backbone in the solution. A method of synthesizing a homopolymer with a substantially linear backbone is also disclosed. In addition, a composition comprising polyethylenimine synthesized from the aforementioned method is disclosed, in which the polyethylenimine comprises a backbone conformation that is substantially linear and has a distribution of molecular weights (MW) ranging from 1 kDa to 200 kDa; and the polyethyleneimine has no cytotoxicity at a concentration of 12 μg/ml.
摘要:
A driving device for a portable electronic display device for showing a digital content includes a movement sensor installed in the portable electronic display device, for detecting a rotating status of the portable electronic display device to generate a detecting result, and a control module for switching to display a plurality of pages of the digital content according to the detecting result.
摘要:
A data processing device applying for a storage device includes: a first interface circuit coupled to the storage device; a processing circuit coupled to the first interface circuit for reading a control code from a divided storage area in the storage device, and executing the control code to generate a storage capacity of the storage device; and a second interface circuit coupled to the processing circuit for feeding the storage capacity back to an operating system such that the operating system regards the storage capacity as a usable capacity of the storage device.
摘要:
A method for controlling a digital picture frame includes the following steps of: establishing an image data corresponding to a folder stored in the digital picture frame, connecting a storage device to the digital picture frame, capturing an image by the digital picture frame, comparing the image with the image data to generate a comparison result by the digital picture frame, and determining whether to provide an option of transmitting data between the storage device and the folder according to the comparison result by the digital picture frame.
摘要:
An internet phone integrating system includes a PC, a VoIP phone, a softphone, an HID signal-transmitting unit, and a media transmitting unit. The VoIP phone provides an HID inputting signal. The softphone provides an HID outputting signal and a media controlling signal and decodes an audio coding streaming to a media data flow. The HID signal-transmitting unit receives the HID outputting signal from the softphone and sends the HID outputting signal to the VoIP phone, and receives the HID inputting signal from the VoIP phone and sends the HID inputting signal to the softphone. The media transmitting unit receives the media controlling signal and media data flow from the softphone and sends the media controlling signal and media data flow to the VoIP phone, and receives the media data flow from the VoIP phone and sends the media data flow to the softphone.
摘要:
The present invention provides a method for estimating a capacity usage status of a storage unit, where the storage unit includes a plurality of sectors. The method includes: estimating capacity usage statuses of a portion of sectors; and utilizing a controller to estimate the capacity usage status of the storage unit according to the estimated capacity usage statuses of the portion of sectors in a situation of not estimating capacity usage statuses of all of the sectors of the storage unit.
摘要:
A method of synthesizing a random copolymer of polyethyleneimine and polyethylene glycol, comprising exposing ethanolamine in a solution to electromagnetic radiation for a sufficient time to polymerize the ethanolamine (OHCH2CH2NH2) and thereby resulting in formation of the randome copolymer comprising polyethyleneimine and poly(ethylene glycol), wherein the polyethyleneimine comprises ethyleneimine (—CH2CH2NH—) unit and the polyethylene glycol comprises ethylene glycol (—CH2CH2O—) unit, and the polyethylenimine of the random copolymer has a substantially linear backbone.
摘要:
The invention provides a novel control method combining fuzzy logic control with gain auto-tuning sliding mode control. A control error signal e(t) from the detection mechanism and an error change signal ce(t) are combined together as a sliding variable s(t)=ce(t)+λe(t) and used as the fuzzy input control variable. Using the control method, 2D fuzzy control rule is simplified into 1D fuzzy control rule through the sliding variable definition for enhancing the efficiency of computation and saving computation resources. Accordingly, both the quick transient response and steady state precision positioning can be achieved. The present method can overcome the disadvantages of current controller, which can not reach the desired transient and steady state responses simultaneously.
摘要:
A method of synthesizing a random copolymer of polyethyleneimine and polyethylene glycol, comprising exposing ethanolamine in a solution to electromagnetic radiation for a sufficient time to polymerize the ethanolamine (OHCH2CH2NH2) and thereby resulting in formation of the randome copolymer comprising polyethyleneimine and poly(ethylene glycol), wherein the polyethyleneimine comprises ethyleneimine (—CH2CH2NH—) unit and the polyethylene glycol comprises ethylene glycol (—CH2CH2O—) unit, and the polyethylenimine of the random copolymer has a substantially linear backbone.
摘要:
An internet phone integrating system includes a PC, a VoIP phone, a softphone, an HID signal-transmitting unit, and a media transmitting unit. The VoIP phone provides an HID inputting signal. The softphone provides an HID outputting signal and a media controlling signal and decodes an audio coding streaming to a media data flow. The HID signal-transmitting unit receives the HID outputting signal from the softphone and sends the HID outputting signal to the VoIP phone, and receives the HID inputting signal from the VoIP phone and sends the HID inputting signal to the softphone. The media transmitting unit receives the media controlling signal and media data flow from the softphone and sends the media controlling signal and media data flow to the VoIP phone, and receives the media data flow from the VoIP phone and sends the media data flow to the softphone.