Abstract: An image forming apparatus that is capable of improving usability at a time of using a specific function that uses an external storage device. The image forming apparatus includes a memory device that stores a set of instructions, and at least one processor that executes the set of instructions to display, in a case where a function that is selectable by a user is uniquely specified from among specific functions that use an external storage device connected, a setting screen concerning the uniquely specified function in response to connection of the external storage device, and to display a selection screen that prompts the user to select a use function from among the specific functions in response to connection of the external storage device in a case where a function that is selectable by the user is not uniquely specified from among the specific functions.

Abstract: To reduce an arithmetic processing load or an influence of noise at the time of virtual curve calculation processing, provided is a data processing device for a chromatograph, which is configured to execute data processing based on plot data measured by using a chromatograph, the data processing device including a virtual curve calculation data generator configured to obtain a smaller number of pieces of virtual curve calculation data than a number of pieces of the measured plot data; and an arithmetic processor (163) functioning as a virtual curve calculator configured to obtain a virtual curve based on the virtual curve calculation data.

Abstract: A chromatographic data system processing apparatus performs data processing based on plot data measured by a chromatograph. The chromatographic data system processing apparatus includes a virtual curve calculation portion which obtains a virtual curve based on the measured plot data, a tentative feature point acquisition portion which obtains a tentative feature point based on the obtained virtual curve, and an actual plot data feature point extraction portion which extracts an actual plot data feature point corresponding to the tentative feature point from the measured plot data.

Abstract: An analysis method is achieved in which pressure variation resulting from sample injection or passage switching by an autosampler does not exert an influence on the control of a liquid transfer pump. The liquid chromatograph analysis method comprises the steps of: transferring two or more types of eluents while changing a mixing ratio between the eluents; adjusting an amount of the transferred liquid within a predetermined time in a passage for the eluent transferred; injecting a sample in the passage; supplying to a separation column the eluent into which the sample is injected; separating a target component in the sample; and detecting the target component thus separated. In this method, control is exercised so as to synchronize a liquid transfer cycle of the eluent with the sample injecting operation and to implement the sample injecting operation at a timing rather than the pressure obtaining time.

Abstract: The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analysis. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously.

Abstract: An analysis method is achieved in which pressure variation resulting from sample injection or passage switching by an autosampler does not exert an influence on the control of a liquid transfer pump. The liquid chromatograph analysis method comprises the steps of: transferring two or more types of eluents while changing a mixing ratio between the eluents; adjusting an amount of the transferred liquid within a predetermined time in a passage for the eluent transferred; injecting a sample in the passage; supplying to a separation column the eluent into which the sample is injected; separating a target component in the sample; and detecting the target component thus separated. In this method, control is exercised so as to synchronize a liquid transfer cycle of the eluent with the sample injecting operation and to implement the sample injecting operation at a timing rather than the pressure obtaining time.

Abstract: There is provided a system for supporting the assessment as to which disease group the subject to be examined falls in or what position in the whole disease group the subject is in. This support system comprises the data storage part which stores feature values of optical bio-measurement data of many subjects including patients in multiple disease groups, the analysis part which extracts plural kinds of feature values from the optical bio-measurement data and the display part which displays the results of analysis in the analysis part associated with the dictionary data, wherein the display part produces a scatter diagram on which features values of the dictionary data are plotted, with one of the two feature values being plotted along the axis of abscissa and the other along the axis of ordinate, and displays the positions of the subject to be assessed on the scatter diagram superimposed on the scatter diagram.

Abstract: An object of the present invention is to improve the accuracy in analysis repeatability of a liquid chromatography apparatus that feeds different eluent by use of a plurality of pumps and achieves the mixture of eluent. Each of the pumps includes means for notifying an automatic sampler and a higher-level control unit that the specified timing of a liquid feeding cycle is reached. A pump whose liquid feeding cycle is the slowest transmits own information so that analysis is synchronized with a liquid feeding cycle. Moreover, a cycle position of a liquid feeding cycle at the end of analysis is expected, and the analysis time is automatically adjusted so that the wait time until the start of the next analysis becomes the shortest.

Abstract: Provided is a liquid chromatograph system and method configured to accurately obtain measurements by minimizing deviations in measurements due to a transfer from one measurement method to another measurement method. An aspect of the system and method includes minimizing deviations in measurements when a measurement method from a measurement system of a liquid chromatograph is transferred to measurement system under high pressure and high velocity. Such a transfer includes deviations due to differences in analysis conditions. The present subject matter uses a dwell volume value so as to minimize a deviation of measurement result due to methods before and after transfer. Another aspect includes calculating a correction value when there is a deviation in the measurement result, and automatically reflecting the correction value for the method transfer.

Abstract: Provided is a liquid chromatograph system and method configured to accurately obtain measurements by minimizing deviations in measurements due to a transfer from one measurement method to another measurement method. An aspect of the system and method includes minimizing deviations in measurements when a measurement method from a measurement system of a liquid chromatograph is transferred to measurement system under high pressure and high velocity. Such a transfer includes deviations due to differences in analysis conditions. The present subject matter uses a dwell volume value so as to minimize a deviation of measurement result due to methods before and after transfer. Another aspect includes calculating a correction value when there is a deviation in the measurement result, and automatically reflecting the correction value for the method transfer.

Abstract: The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analyses. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously.

Abstract: The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analyses. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously.

Abstract: When transfer a method from a measurement system of a liquid chromatograph to a measurement system under a condition of a high pressure and a high velocity, an influence due to analysis condition cannot be neglected. Further, since a transfer value obtained by calculation is a logical value, an improper result can be obtained in an actual measurement. Further, since conventional methods are optimized by such as know-how based on previous experiences, how to carry on these know-how to a new method is remained to be solved. One of the features of the present invention is to use a value of dwell volume so as to minimize a deviation of measurement result due to methods before and after transfer. Another is, when a deviation of the measurement result is caused, to calculate a correction value for correcting the deviation from analysis of measurement data and to automatically reflect the correction value for the method transfer.

Abstract: There is provided a user interface which enables all users to input a purpose of use of a chromatography data system, recognize a series of operation flow of the analysis of chromatograph data according to the input purpose, improve an operability and prevent an operation error regardless of the user's knowledge on analyzing the chromatograph data or the user's proficiency in the chromatography data system. In a chromatograph data processing, the present invention relates to recognizing chromatograph data analyzing means on a picture and displaying the chromatograph data analyzing means on the picture in accordance with purpose of use. According to the present invention, the chromatography data system can be easily operated regardless of the knowledge on the analysis of chromatograph data or proficiency in the chromatography data system.

Abstract: There is provided a system for supporting the assessment as to which disease group the subject to be examined falls in or what position in the whole disease group the subject is in. This support system comprises the data storage part which stores feature values of optical bio-measurement data of many subjects including patients in multiple disease groups, the analysis part which extracts plural kinds of feature values from the optical bio-measurement data and the display part which displays the results of analysis in the analysis part associated with the dictionary data, wherein the display part produces a scatter diagram on which features values of the dictionary data are plotted, with one of the two feature values being plotted along the axis of abscissa and the other along the axis of ordinate, and displays the positions of the subject to be assessed on the scatter diagram superimposed on the scatter diagram.

Abstract: An object of the present invention is to improve the accuracy in analysis repeatability of a liquid chromatography apparatus that feeds different eluent by use of a plurality of pumps and achieves the mixture of eluent. Each of the pumps includes means for notifying an automatic sampler and a higher-level control unit that the specified timing of a liquid feeding cycle is reached. A pump whose liquid feeding cycle is the slowest transmits own information so that analysis is synchronized with a liquid feeding cycle. Moreover, a cycle position of a liquid feeding cycle at the end of analysis is expected, and the analysis time is automatically adjusted so that the wait time until the start of the next analysis becomes the shortest.

Abstract: The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analyses. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously.

Abstract: An apparatus which can objectively assess and display to what extent and to which disease the subject belongs based on the signals of changes in hemoglobin amount measured by the optical measurement apparatus is provided. The disease assessment apparatus comprises the feature extraction unit 15 for extracting features of the hemoglobin waveform, the feature analysis unit 16 and the storage unit 12 for storing features by each disease as database. The disease is assessed by extracting various kinds of feature amounts from the hemoglobin signals of the subject measured by the optical measurement apparatus in the feature extraction unit 15 and by applying multivariate analysis of similarities between feature amounts extracted and feature amounts stored by disease in the storage unit 12. Results of assessment are shown as scores expressing similarity with each disease group in a bar graph.

Abstract: An apparatus which can objectively assess and display to what extent and to which disease the subject belongs based on the signals of changes in hemoglobin amount measured by the optical measurement apparatus is provided. The disease assessment apparatus comprises the feature extraction unit 15 for extracting features of the hemoglobin waveform, the feature analysis unit 16 and the storage unit 12 for storing features by each disease as database. The disease is assessed by extracting various kinds of feature amounts from the hemoglobin signals of the subject measured by the optical measurement apparatus in the feature extraction unit 15 and by applying multivariate analysis of similarities between feature amounts extracted and feature amounts stored by disease in the storage unit 12. Results of assessment are shown as scores expressing similarity with each disease group in a bar graph.

Abstract: There is provided a user interface which enables all users to input purpose of use of a chromatography data system, recognize a series of operation flow of the analysis of chromatograph data according to the input purpose, improve an operability and prevent an operation error regardless of the user's knowledge on analyzing the chromatograph data or the user's proficiency in the chromatography data system. In a chromatograph data processing, the present invention relates to recognizing chromatograph data analyzing means on a picture and displaying the chromatograph data analyzing means on the picture in accordance with purpose of use. According to the present invention, the chromatography data system can be easily operated regardless of the knowledge on the analysis of chromatograph data or proficiency in the chromatography data system.