摘要:
mRNA was extracted at the stage for cotton plant fibrous cells to accumulate cellulose, and cDNA's complementary thereto were synthesized to construct a cDNA library. Clones of a number of 750 were arbitrarily selected from the library, and they were randomly subjected to sequencing. Those having homology to an amino acid sequence deduced from a gene of cellulose 4-.beta.-glucosyltransferase (bcsA) of cellulose synthase operon of acetic acid bacterium were selected from obtained nucleotide sequences of the respective clones. Thus, DNA coding for cellulose synthase was obtained.
摘要:
Nucleotide sequences of cotton plant cDNA clones randomly selected are determined. Homology search is performed between the sequences and known gene sequences registered in the data base. Thus a gene, which controls the fiber formation mechanism in cotton plant and which can be used for industrially useful improvement, is isolated from clones having homology to a gene in the data base.
摘要:
Performing map construction under a crowded environment where there are a lot of people. It includes a successive image acquisition unit that obtains images that are taken while a robot is moving, a local feature quantity extraction unit that extracts a quantity at each feature point from the images, a feature quantity matching unit that performs matching among the quantities in the input images, where quantities are extracted by the extraction unit, an invariant feature quantity calculation unit that calculates an average of the matched quantities among a predetermined number of images by the matching unit as an invariant feature quantity, a distance information acquisition unit that calculates distance information corresponding to each invariant feature quantity based on a position of the robot at times when the images are obtained, and a map generation unit that generates a local metrical map as a hybrid map.
摘要:
Disclosed is a position estimation device including a feature extraction unit that extracts invariant features from an input image, a matching unit that obtains matching between an input image and a registered place by referring to a database containing each registered place and invariant features in association, a similarity calculation unit that calculates a similarity with inclusion of a registered place near a selected registered place when the matching is a threshold or more, and a position identification unit that identifies the input image as a registered place when the similarity is a threshold or more. The feature extraction unit extracts local features from each input image being sequential images taken sequentially, selects features matched between the sequential images as sequential features, and calculates invariant features based on the sequential features. The number of sequential images is variable depending on the number of matched features.
摘要:
A receiver for the CDMA system which reduces power consumption during a suspension period of intermittent receiving operation by monitoring a suspension period by a low-power timer so that a VC-TCXO, reference signal group generation and receiving units are turned off and a modem unit is set to a sleep state. Upon resumption of receiving operation, a high-accuracy timer is started to count a time period and part of a received signal is stored. A PN code phase of stored data is calculated during the time period to obtain an indication value for phase deviation. State vectors for short and long codes and a further reception time are calculated based on the indication value. When the high-accuracy timer counts the time period and produces 0V(d), demodulation operation by a rake demodulation, demultiplexing, and descrambler units is started and is continued during the reception time.
摘要:
A method of and system for manufacturing a microstructure having high form accuracy and a manufacturing system is disclosed. On a rough motion stage having a predetermined positioning accuracy and a large stroke length, a fine motion stage having a small stroke length and a higher positioning accuracy is placed. First, the rough motion stage is moved to a desired position. By use of a mirror placed on a laser length measuring machine and the fine motion stage, the current position of a thin film member on the fine motion stage is precisely measured. This measurement value is feed-backed to a stage control device, and a difference between the current position and a target position is calculated by an error correcting unit. Thus, an error correcting instruction value is generated to move the fine motion stage to the target position. Thus, an error of the rough motion stage is corrected.
摘要:
A vibration-proof structure for a metallic electrical packaging case includes a metallic electrical packaging case and a coupling member. The coupling member connects an outer wall of the metallic electrical packaging case and a member forming a side wall of a vehicle. Also, the coupling member may include an engaging portion at one end of the coupling member, which is used for temporarily fixing the coupling member, and an insertion engaging portion, which is engaged with a portion of the member forming the side wall of the vehicle, formed at another end of the coupling member.
摘要:
When a receiving end is a cellular phone, the cellular phone that displays the local time at the receiving end and a base station used in this cellular phone are realized. A time recognition unit that obtains the local time at the receiving end using the time information acquired from the cellular phone of the receiving end or the base station at which the cellular phone of the receiving end is registered in stand-by mode and a display unit that displays the local time are installed in the cellular phone. Further, when the time information or position information of the cellular phone registered in the base station in stand-by mode is requested from the calling end, a unit for sending the time information or position information at the location at which this base station exists to the cellular phone of a requesting source is installed in the base station.
摘要:
A high voltage electrical packaging box structure includes a box body, and a high voltage electrical part which is accommodated in the box body. In the high voltage electrical packaging box, an interposing member which is formed using an expandable resin, is disposed between the box body and the high voltage electric part. Air may be pass through the inside of the box body so as to cool down the high voltage electric part placed in the box body.
摘要:
In an AFC ((Automatic Frequency Control) circuit, a frequency offset estimating circuit (11) produces a lock signal (102) if a calculated frequency error becomes smaller than a predetermined value. Then, a CPU (13) produces a control signal (104) to stop the operation of the frequency offset estimating circuit (11). A timing generating circuit (14) calculates a frequency error with reference to a frame timing correction amount from a delay profile/search circuit (12), and produces an unlock signal (103) if the frequency error becomes equal to or greater than the predetermined value. Then, the CPU (13) produces the control signal (104) to start the operation of the frequency offset estimating circuit (11). Thus, the frequency offset estimating circuit (11) stops its operation while the AFC operation is in the locked state.
摘要翻译:在AFC((Automatic Frequency Control,自动频率控制)电路中,如果计算出的频率误差小于预定值,则频率偏移估计电路产生锁定信号(102),CPU(13)产生控制信号 定时生成电路(14)根据来自延迟分布/搜索电路(12)的帧定时校正量来计算频率误差,并产生解锁 信号(103)如果频率误差变得等于或大于预定值,则CPU(13)产生控制信号(104)以开始频率偏移估计电路(11)的操作,因此频率 偏移估计电路(11)在AFC操作处于锁定状态时停止其操作。