摘要:
A packet interval (a time difference between sequentially received packets) in a certain previous time is calculated and a cumulative distribution function of the calculated packet interval is obtained. Meanwhile, a function value-corresponding to-flow end that is a boundary value of the cumulative distribution function to be considered as a flow end (timeout) in the range of a cumulative distribution function value is stored. From the cumulative distribution function obtained as described above, a value of a packet interval mapped to a cumulative distribution function value that matches the function value-corresponding to-flow end is set as a threshold. That is, the threshold is dynamically set based on a previous packet interval. Therefore, a packet stop period from a last packet reception time to a current time is measured, and it is detected as a flow timeout at a timing when the measured value is equal to or greater than the threshold.
摘要:
A hygroscopic moisture separating and heating apparatus (20) comprises a main body container (1) having a cylindrical shape, a partition plate (5) provided to define a space together with an inner circumferential face of the main body container (1) and configured to divide the internal space of the main body container (1) into a lower temperature area (30) and a higher temperature area (31), a steam inlet (6) provided to the lower temperature area (30) of the main body container (1), a steam outlet (7) provided to the higher temperature area (31) of the main body container (1), a hygroscopic moisture separator (8) located in the lower temperature area (30) of the main body container (1), and a U-shaped pipe (2) through which heated steam for heating the steam to be heated is fed. The U-shaped pipe includes an advancing part (21), a retracting part (22), and a U-shaped part (23) connecting the advancing part (21) with the retracting part (22). Either of the advancing part (21) and the retracting part (22) of the U-shaped pipe (2) extends through the partition plate across the lower temperature area (30) and the higher temperature area (31).
摘要:
A service retrieval apparatus has a service information database which stores service information including a type of service provided by a server and positional information, and a service retrieval apparatus database which stores information including installation positions of other service retrieval apparatuses. A service retrieval unit generates retrieval conditions to execute service retrieval in response to a service retrieval request from a client. When it is judged by a retrieval result judgment unit that a result of the retrieval by the service retrieval unit does not satisfy judgment criteria set in advance, a retrieval range setting unit changes a retrieval range included in the retrieval conditions so as to be wider or narrower. The service retrieval unit performs service retrieval again with respect to the change retrieval range and obtains a retrieval result with which a user is satisfied.
摘要:
The present invention makes the best use of a low-cost chemical composition in providing a high strength and high corrosion resistance stainless steel, which has improved delayed fracture resistance and toughness in particular, for building and construction uses, and as, for example, a stainless steel tapping screw. The present invention is, specifically, a stainless steel and a stainless steel screw with high strength and high toughness and excellent in delayed fracture resistance, characterized by: comprising, by mass, 0.01 to 0.25% of C, 0.05 to 1.0% of Si, 0.1 to 2.0% of Mn, 0.1 to 3.0% of Ni, 11.0 to 16.0% of Cr, 0.01 to 0.15% of N, and 0.01 to 3.0% of Mo; containing, optionally, 0.001 to 0.005% of B and/or one or more of 0.05 to 0.5% of Ti, 0.05 to 0.5% of Nb, and 0.05 to 0.5% of W; having less than 10% of ferrite in the center portion of the material; and having a mixed structure of martensite and 3 to 30% of austenite in the surface layer from the outermost surface to the depth of at least 1 &mgr;m, and a method to produce the same.
摘要:
According to one embodiment, there is provided a multistage-pressure condenser, including a first condenser, a second condenser and a third condenser, which are arranged in increasing order of internal pressure, the first condenser and the second condenser each including a first partition in which perforations from which condensate obtained by condensing turbine steam by cooling water drops are formed on a cooling water inflow side of the condenser rather than at a central part thereof, and a second partition which partitions a reheating room for reheating condensate dropping from the perforations in a direction perpendicular to an inflow direction of the cooling water, and a heating-steam flow path which supplies heated steam from the third condenser to the reheating room partitioned by the first partition and the second partition.
摘要:
An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
摘要:
A service retrieval apparatus has a service information database which stores service information including a type of service provided by a server and positional information, and a service retrieval apparatus database which stores information including installation positions of other service retrieval apparatuses. A service retrieval unit generates retrieval conditions to execute service retrieval in response to a service retrieval request from a client. When it is judged by a retrieval result judgment unit that a result of the retrieval by the service retrieval unit does not satisfy judgment criteria set in advance, a retrieval range setting unit changes a retrieval range included in the retrieval conditions so as to be wider or narrower. The service retrieval unit performs service retrieval again with respect to the change retrieval range and obtains a retrieval result with which a user is satisfied.
摘要:
An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
摘要:
High strength martensitic stainless steel having high rusting resistance which comprises, by weight, 0.13 to 0.20% of C, 0.5 or less of Si, 2.0% or less of Mn, 1.0 to 2.5% of Ni, 12.0 to 16.0% of Cr, 1.3 to 3.5% of Mo, 0.06 to 0.13% of N, if necessary, 0.001 to 0.010% of B, or 0.05 to 1.0% of Ti, 0.05 to 1.0% of Nb, which satisfies 16 to 21% of ARI value for a rusting resistance index (Formula (1)), less than 0% of DI value for a .delta.-ferrite content index (Formula (2)), less than 0% of MI value for martensite content index (Formula (3)), less than 260% of W.sub.1 or W.sub.2 value for a cold workability index (Formulas (4) or (5)), with the balance comprising substantially Fe and inevitable impurities, said steel being characterized in that the martensite structure or the tempered martensite structure is contained, in which a Cr carbide of 0.2 .mu.m or less in grain size is deposited, especially enabling to produce a self drilling-tapping screw superior in screwing ability and rusting resistance, a nail superior in driving ability and rusting resistance, a cutter having high rusting resistance, a high strength spring superior in rusting resistance, etc.ARI=Cr+ 2.4Mo Formula (1)DI=Cr+ 1.21Mo+ 0.48Si+ 2.48Al- (24.5C+ 18.4N+Ni+ 0.11Mn)- 10.0 Formula (2)MI=Ni+ 30C+ 0.12Mn+ 18N+ 0.83(Cr+ 1.5Si+ 1.4Mo)- 25.0 Formula (3)W.sub.1= 24Mo+ 13.3Cr+ 6Mn+ 6Si+Ni Formula (4)W.sub.2 = 24Mo+ 13.3Cr+ 6Mn+ 6Si+Ni+10+ 10Nb Formula (5).