摘要:
In conventional Al coated steel sheet, with the Al coating as it is, black discoloration cannot be prevented at 550° C. or more. For this reason, post annealing is used to form a barrier layer and suppress the formation of Fe—Al intermetallic compounds. However, with this method, there were the problems that the steel sheet became poor in workability and, further, high temperature, long time heating was required, so there were problems from the workability, economy, and environmental aspect. The present invention provides steel sheet which has a heat black discoloration resistance even at a 550° C. or more high temperature without additional annealing after Al coating and further is excellent in workability.That is, it is hot dip Al coated steel sheet which comprises steel sheet which contains predetermined ingredients of C, Si, P, S, Al, N, and O plus one or both of furthermoreNi: 0.01 to 0.1% or Cu: 0.01 to 0.1% and satisfies 10×C+Ni+Cu>0.03 and an Al coating layer which contains Si: 4 to 11% on the surface of that steel sheet and which have a thickness 5 μm or less Al—Fe—Si alloy layer in the interface between the Al coating layer and the steel sheet.
摘要:
A rotor includes permanent magnets arranged such that magnetic poles of N poles and S poles are arranged alternately in a rotation circumferential direction. The permanent magnets form a plurality of rows in a rotation axis direction. The rotor includes a change section in which arrangements of the magnetic poles change with respect to the rotation axis direction due to the permanent magnets being arranged such that arrangements of the magnetic poles change, in the rotation circumferential direction, between the permanent magnets in the plurality of rows. A stator includes tooth sections opposed to the rotor to surround the rotor, and auxiliary slots each of which is selectively formed at one portion of a front end portion of each tooth section in the rotation axis direction such that substantially a center of the auxiliary slot in the rotation axis direction is opposed to the change section.
摘要:
A variety of ions generated in an ion source are made to fly while bypassing a loop orbit and mass analyzed to create a mass spectrum. Among the peaks appearing on the mass spectrum, peaks complying with predetermined conditions are extracted to determine a plurality of mass ranges to be measured (S1 through S3). Next, the ion selection conditions for the timing when ions should be injected into the loop orbit and on the loop orbit are determined for each mass range. In addition, deviation conditions under which selected ions will not be mixed are determined (S4 and S5). When the second measurement is performed for the same sample, ions are put into the loop orbit and unnecessary ions are removed from the loop orbit in accordance with the ion selection conditions (S6 and S7). Thus, only the ions to be measured are left on the loop orbit with a high mass resolving power. Then, these ions are sequentially deviated from the loop orbit in accordance with the ion deviation conditions, dissociated, and then mass analyzed (S8). In this manner, MS/MS analyses are performed for each of the plurality of ions to be measured to create an MS/MS spectrum (S10).
摘要:
When a target substance's composition formula is deduced by using a mass spectrometer, if the target substance's composition formula is deduced based on an MSn spectrum and candidates are found, a composition formula candidate list including all the composition formula candidates is created, and the list is displayed in a list format. The composition formula candidates are narrowed down based on the MSn spectrum by an MS2 analysis or MS3 analysis. If there is a candidate to be excluded, the composition formula candidate list is updated, and the excluded candidate is moved to the exclusion list. Accompanying this, a composition formula candidate table is displayed in a list format on the display window. In this table, the composition formula candidates included in the exclusion list and the remaining composition formula candidates in the composition formula candidate list are simultaneously displayed with different colors so that they are visually discriminable.
摘要:
A laminated ceramic capacitor which exhibits excellent lifetime characteristics in a high temperature loading test uses a dielectric ceramic constituting the dielectric layers which contains (Ba1-xCax)TiO3 as its main constituent, and contains a parts by mol of Al, b parts by mol of V, c parts by mol of Mg, and d parts by mol of Re with respect to 100 parts by mol of the (Ba1-xCax)TiO3. The Re is at least one metal element selected from among Y, La, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb, and the x, a, b, c, and d respectively satisfy the conditions of 0.050≦x≦0.150, a≧0.15, 0.05≦b≦0.50, c≦0.50, and d≧1.00.
摘要:
A product ion spectrum is created on the basis of MS2 analysis data respectively obtained for a parent compound and a metabolite (S1 and S2). Additionally, a neutral loss spectrum, in which the mass of each product ion is replaced with a mass difference between the mass of the product ion and that of a precursor ion, is created (S3). Then, a common peak having the same mass on the neutral loss spectrums of both the parent compound and the metabolite is extracted (S4), and a complementary peak appearing on the product ion spectrum of the metabolite is extracted (S5); this peak appears at a position corresponding to the difference between the mass of the common peak and that of the precursor ion. The ion corresponding to the complementary peak is designated as a precursor ion for the next MS3 analysis (S6), and this MS3 analysis is performed (S7). By a dissociation operation, if a portion common to the parent compound and the metabolite is desorbed in the form of a neutral molecule while a different portion remains in the form of an ion, an MS3 analysis in which the ion of the different portion is used as the precursor ion is performed to obtain structural information of a site of metabolism.
摘要:
In deducing the composition of an unknown metabolite, information on the kind of reaction and the component which is added or dropped is provided, based on the prediction and knowledge on the pathways of metabolism (S5). Then, based on the information, the kind of elements and the maximum value of the increase and decrease in the number of atoms of the elements are computed. In addition, based on the values and the composition of the original substance, the kind of the unknown substance and the possible range of numbers of atoms thereof are obtained (S6 and S7). Using the element's kind and range of numbers as a computational condition, the combination of elements that matches the mass of the unknown metabolite obtained by a mass analysis is searched to deduce the composition of the unknown metabolite (S8). Since the computational condition is fairly limited, the composition can be deduced with a practical amount of computation and with a high degree of accuracy.
摘要:
A mass analysis is initially performed while applying appropriate voltages to the electrodes so that ions injected through an entrance gate electrode (5) into a loop orbit (3) are guided through approximately one half of the loop orbit (3) and diverted at an exit gate electrode (6) toward an ion detector (7). Based on the intensities of the peaks appearing on a mass spectrum obtained by this mass analysis, one or more objective ions are selected and a time parameter is specified so that the voltage applied to the exit gate electrode (6) changes when none of the ions flying along the loop orbit (3) are passing through the exit gate electrode (6). As a result, the orbit of the objective ions will assuredly changed so that they will be directed toward the ion detector (7) after flying through the loop orbit (3) multiple times. Thus, the mass information of the objective ions can be assuredly obtained.
摘要:
A laser light is linearly delivered onto the sample 4. The ions generated from the irradiated area are collected, mass-separated in the mass separator 27, and detected by the detector 28. A mass analysis is repeated while moving the sample stage 3 by a predetermined step width in the x-axis direction so that the one-dimensional mass spectrum information of the sample 4 at a certain rotational position is obtained. Additionally, while the sample 4 is rotated by a predetermined angle, the same measurement is repeated for the entire perimeter, so that the one-dimensional mass spectrum information at each rotational position is obtained. Based on the data obtained in this manner, a reconstruction computational processing is performed by the CT method to reconstruct the two-dimensional distribution image for a substance having a certain mass for example and the image is displayed on the display 35.
摘要:
A chromatograph mass spectrometer is provided for obtaining the information pertinent to a structural analysis, with a simple operation, on a compound series including a plurality of compounds whose structures and characters are similar. First, based on the data obtained by a normal LC/MS analysis, a two-dimensional isointensity line graph is created and displayed with a retention time and a mass-to-charge ratio on the two axes and with a signal intensity represented in contour (S1 and S2). When the operator specifies a desired range by a drag operation or the like by a mouse (S3), peaks included in the range specified are extracted and based on the peaks, precursor ions are selected (S4 through S6). Then a schedule is created so that an MS2 analysis is performed for the precursor ions selected in the course of an LC/MS analysis for the sample to be targeted (S7). Analyses are performed while properly performing the precursor ions' selection/dissociation process in accordance with the schedule to collect the MS2 spectrum data (S8).