摘要:
Disclosed is a pharmaceutical composition for the prophylaxis and therapy of inflammatory diseases, allergic diseases, or asthma, comprising a velvet apple (Diospyros blancoi A. DC.) extract as an active ingredient. Having the inhibitory activity against the nuclear translocation of NF-κB, whose level is rapidly elevated in response to inflammatory stimuli, the velvet apple extract can suppress the production of NO and PGE2, the expression of iNOS and COX-2, and the release of IL-1β and TNF-α, and can significantly down regulate Th2-mediated IL-4 and IL-13 production. In addition, the extract was found to inhibit the activation of eosinophils in bronchoalveolar lavage fluid, and to suppress the secretion of immunoglobulins and chemokines in bronchoalveolar lavage fluid and blood, as measured by in vivo tests on an ovalbumin-induced asthma mouse model. Therefore, the extract can be used in the method for preventing or treating various inflammatory disorders, allergic diseases, or asthma.
摘要:
Disclosed is a pharmaceutical composition for the prophylaxis and therapy of inflammatory diseases, allergic diseases, or asthma, comprising a velvet apple (Diospyros blancoi A. DC.) extract as an active ingredient. Having the inhibitory activity against the nuclear translocation of NF-κB, whose level is rapidly elevated in response to inflammatory stimuli, the velvet apple extract can suppress the production of NO and PGE2, the expression of iNOS and COX-2, and the release of IL-1β and TNF-α, and can significantly down regulate Th2-mediated IL-4 and IL-13 production. In addition, the extract was found to inhibit the activation of eosinophils in bronchoalveolar lavage fluid, and to suppress the secretion of immunoglobulins and chemokines in bronchoalveolar lavage fluid and blood, as measured by in vivo tests on an ovalbumin-induced asthma mouse model. Therefore, the extract can be used in the method for preventing or treating various inflammatory disorders, allergic diseases, or asthma.
摘要:
An integrated system is provided. The integrated system includes a control system and a signal analysis circuit configured to provide a test signal having a frequency to the control system, receive a feedback signal from the control system, and analyze the test signal and the feedback signal to generate a transfer function of the control system.
摘要:
A data transfer apparatus, system and method using the same are provided. A data transfer system according to an exemplary embodiment includes a user process space, a kernel space and a hardware space. A plurality of user processes are executed in the user process space. The kernel space includes a kernel thread. The hardware space performs an input/output according to the input/output request of the each user process. When input data based on the input request are received to the hardware space, the data transfer system checks whether the user process requesting the input is in an execution state, and allows the kernel thread to copy the input data from the kernel space to the user process space when the user process is in the execution state.
摘要:
An image forming apparatus capable of minimizing color mis-registration due to runout of gears is disclosed. The image forming apparatus includes a plurality of photosensitive bodies having transfer points to transfer images onto a transfer object, a driving source to drive at least two photosensitive bodies of the plurality of photosensitive bodies, and a driving gear train to transmit driving power from the driving source to the at least two photosensitive bodies. The driving gear train includes photosensitive body shaft gears respectively connected to the photosensitive bodies driven by the driving source, and connecting gears to transmit the driving power to the photosensitive body shaft gears. When any one of the photosensitive body shaft gears is set to a reference photosensitive body shaft gear, the number of teeth of the connecting gear, which is disposed at a jth position from the reference photosensitive body shaft gear, is determined so that a value calculated from the following equation is substantially an integer. L π D · 1 R j Here, D refers to a diameter of each of the photosensitive bodies, L refers to a distance between the transfer points of two adjacent photosensitive bodies, and Rj refers to a speed reduction ratio from the jth connecting gear to the reference photosensitive body shaft gear.
摘要:
Disclosed herein is a photosensitive body unit having an improved structure capable of disposing a developing unit at a correct position to supply developer to a photosensitive body, and an image forming apparatus including the photosensitive body unit. The image forming apparatus includes a main body, a photosensitive body housing mounted in the main body, a photosensitive body rotatably coupled to the photosensitive body housing, and a developing unit detachably mounted in the main body to supply developer to the photosensitive body. The photosensitive body housing includes a guide portion to determine a mounting position of the developing unit when the developing unit is mounted in the main body.
摘要:
A system-on-chip (SoC) which includes a plurality of intellectual properties (IP cores) which communicate data with a memory device operates by monitoring whether a data transaction occurs between at least one of the IP cores and the memory device, determining an operation state of the IP core according to the result of the monitoring, and supplying the IP core with power corresponding to the operation state of the IP core.
摘要:
Disclosed herein is a photosensitive body unit having an improved structure capable of disposing a developing unit at a correct position to supply developer to a photosensitive body, and an image forming apparatus including the photosensitive body unit. The image forming apparatus includes a main body, a photosensitive body housing mounted in the main body, a photosensitive body rotatably coupled to the photosensitive body housing, and a developing unit detachably mounted in the main body to supply developer to the photosensitive body. The photosensitive body housing includes a guide portion to determine a mounting position of the developing unit when the developing unit is mounted in the main body.
摘要:
A power transmission device and an image forming apparatus having the same that is capable of reliably transmitting intermittent power to a driven component from a driving source. The power transmission device includes a shaft, a first intermittent gear to receive power from the driving source and to rotate on the shaft, a second intermittent gear arranged so as to move between a first position in which the second intermittent gear is connected to the first intermittent gear along an axial direction of the shaft and a second position in which the second intermittent gear is disconnected from the first intermittent gear, a sliding unit arranged so as to slide along the shaft and to move the second intermittent gear in the axial direction of the shaft, and a driving unit to drive the sliding unit.
摘要:
A servo control system and method is provided, comprising: a controller outputting a parameter control signal; a device having a parameter controlled based on the parameter control signal; a sensing circuit sensing the parameter of the device and generating a parameter error signal; a sinusoidal signal generator generating a sinusoidal signal; and a adder combining the parameter error signal and the sinusoidal signal, wherein the controller includes a servo equalizer that equalizes the added parameter error signal and the sinusoidal signal to output an equalized parameter control signal to adjust the parameter.