Abstract: A construction machine includes a front working implement operable as a result of driving of an engine, a urea SCR catalyst arranged in an exhaust gas line from the engine to purify and reduce nitrogen oxides in exhaust gas, an aqueous urea solution tank for storing an aqueous urea solution, a temperature detector for detecting a temperature of the aqueous urea solution, an air conditioner for air-conditioning an operator's cab, and a warm/cold air guiding device for guiding warm/cold air, which has been blown out of the air conditioner, to the aqueous urea solution tank in accordance with the temperature of the aqueous urea solution. The warm/cold air guiding device includes a controller for outputting a warm air control signal or cold air control signal, which corresponds to a temperature of the warm/cold air blown out of the air conditioner.

Abstract: An engine lag down control system for construction machinery has a machinery body controller having first, second and third torque control units and a solenoid valve. The first torque control unit controls a torque control valve to a minimum pump torque corresponding to a target number of engine revolutions when a non-operated state of a control device has continued beyond a monitoring time. The second torque control unit controls the torque control valve such that the above-described minimum pump torque is held for a predetermined holding time subsequent to the operation of the control device from the non-operated state. The third torque control unit controls the torque control valve such that from a time point of a lapse of the predetermined holding time, the pump torque is gradually increased on a basis of a predetermined torque increment rate.

Abstract: Before a large amount of PM is deposited in a filter 32, an exhaust gas cleaning system for a construction machine regenerates the filter to avoid a decrease in output due to the exhaust gas pressure rise occurring immediately before the filter is regenerated, and to reduce the likelihood of unusual increases in the internal temperature of the filter due to the combustion of the PM, associated with the execution of the regeneration, and consequential thermal damage to the filter. If a value of a differential pressure across the filter 32 is greater than a predetermined pressure, a controller 4 conducts engine speed control to a predetermined rotating speed Na suitable for the regeneration, then enters forced regeneration automatically, and burns off the PM. When the sensed differential pressure decreases below a predetermined pressure, the regeneration is terminated automatically and the engine 1 is stopped.

Abstract: A ureal water tank (28), a storage of an aqueous urea solution, is located within a utility room (6G) in a right front section of a revolving frame (6), which is readily accessible from outside. In this instance, among a plurality of operating oil conduits (18), a working mechanism operating conduit (21) which supplies operating oil to a boom cylinder (5D) of a working mechanism (5) is arranged to run along exterior surfaces of the ureal water tank (28). Therefore, even if the ureal water tank (28) is located in a place with no heat source, the aqueous urea solution in the ureal water tank (28) can be stably kept in a heated state by utilization of heat of operating oil in circulation through the working mechanism operating conduit (21).

Abstract: A current load rate of an engine 10 is computed and a maximum absorption torque of at least one hydraulic pump 1, 2 is controlled so that the load rate is held at a target value. Engine stalling can be prevented by decreasing the maximum absorption torque of the hydraulic pump under a high-load condition. When an engine output lowers due to environmental changes, the use of poor fuel or other reasons, the maximum absorption torque of the hydraulic pump can be decreased without a lowering of the engine revolution speed. Further, the present invention is adaptable for any kinds of factors causing a lowering of the engine output, such as those factors that cannot be predicted in advance or are difficult to detect by sensors. In addition, because of no necessity of sensors, such as environment sensors, the manufacturing cost can be reduced.

Abstract: An exhaust gas cleaning system for an engineering vehicle, such as a hydraulic excavator, is capable of performing manual regeneration control of a regeneration fuel injector 40 that is started only under the following conditions: a manual regeneration starting switch 39 is enabled; an engine control dial 2 commands a low-speed idle revolution speed; and a gate lock lever 22 is switched to a second position B at which generation of control pilot pressures a through f by use of remote control valves 25, 26, and 27 is disabled. Even when the manual regeneration control is being executed, if the gate lock lever 22 is switched to a first position A, the manual regeneration control immediately ends. As a result, the manual regeneration control of a filter for collecting particulate matter included in the exhaust gas and the operation of the work system do not influence each other.

Abstract: A hydraulic steering unit 5 generates a control pressure corresponding to the rotational quantity and rotational direction of the steering wheel 109 on the basis of pressurized oil of a pilot pump 13. Signals of pressure sensors 6a and 6b used to detect the control pressure, and a signal of a front operation detection unit 31, are inputted into a controller 132. A controller 32 and solenoid valves 33a and 33b control a stroke of a steering valve 4 so that the stroke becomes larger with increase in control pressure detected by each of the pressure sensors 6a and 6b. In addition, when the operation of a front work device is detected, the controller 32 and the solenoid valves 33a and 33b control the stroke of the steering valve 4 so that the stroke becomes larger than that provided when the operation of the front work device is not detected.

Abstract: [PROBLEM] To provide a construction machine capable of performing necessary operation or operations without a difficulty even when a remaining amount of a reducing agent becomes small.

Abstract: A manufacturing method of a multilayer wiring board that includes a core board, a wiring layer, and an electrically insulating layer that are stacked on the core board. The manufacturing method forms a plurality of through holes in a core member, a thermal expansion coefficient of the core board being between 2 to 20 ppm, and the core member selected from silicon, ceramics, glass, a glass-epoxy composite, and metal. The through holes are made conductive by a conductive material, to electrically connect between the front and the back of the core board. A wiring layer and an electrically insulating layer are stacked on one surface of the core board to form a multilayer wiring layer. A capacitor is formed on the other surface of the core board.

Abstract: [Problems] To provide a novel mixture for assaying a target nucleic acid, characterized by enabling a nucleic acid assay while: 1) requiring no step of diluting the target nucleic acid; 2) requiring no procedure of changing a probe concentration depending on a concentration of the target nucleic acid. [Means for Solving Problems] 1) A mixture which comprises one internal standard nucleic acid and two nucleic acid probes labeled with a fluorescent dye; 2) a mixture for measuring Km value which comprises one internal standard nucleic acid having a partial mutation and one nucleic acid probe labeled with a fluorescent dye; 3) a mixture which comprises one internal standard nucleic acid and one double nucleic acid probe labeled with two fluorescent dyes; and a method for assaying a nucleic acid by making use thereof.

Abstract: A nucleic acid probe set includes (A) a fluorescent probe and (B) a binding probe. The fluorescent probe (A) is formed of an oligonucleotide, which includes (a) a nucleotide unit labeled with (d) a fluorescent substance. The binding probe (B) is formed of an oligonucleotide having (b1) a fluorescent probe binding region, which can hybridize to the fluorescent probe (A), and (b2) a target nucleic acid binding region, which can hybridize to a target nucleic acid sequence (C). The fluorescent substance (d) is a fluorescent substance which changes in fluorescent character upon interaction with guanine. At least one of nucleotide units which constitute the fluorescent probe (A) is an artificial nucleotide unit having a function to raise a dissociation temperature between the probe (A) and the fluorescent probe binding region (b1). The nucleic acid probe is provided with an improved fluorescence quenching efficiency.

Abstract: It is an objective to provide a video transmission system enabling easy acquisition and addition of any video signal. According to the ring network, optical wavelength multiplexing and transmission of video signal to be utilized for this network is carried out, so that it is possible to implement an environment, in which all necessary video signals flow on the network. Consequently, by acquiring any video signal from the video signals flowing on the network, it is possible to acquire new video source, or by adding new video source to the network, it is possible to utilize the added video source by all apparatuses connected to the network.

Abstract: The operability when performing a combined arm-crowd and bucket operation can be improved. A hydraulic drive device for a hydraulic excavator includes: a bucket directional control valve and a second arm directional control valve, which are connected in parallel tandem with a first hydraulic pump; a first arm directional control valve that is connected to a second hydraulic pump; and a flow rate restriction device that restricts the flow rate of pressure oil supplied to the second arm directional control valve, during crowd operation of a bucket. This flow rate restriction device includes a variable throttle whose opening is controlled so as to become smaller as a bucket operating device is operated to the crowd side, the variable throttle being provided in a bypass path connecting to the supply port of the second arm directional control valve.

Abstract: A nucleic acid probe set includes (A) a fluorescent probe and (B) a binding probe. The fluorescent probe (A) is formed of an oligonucleotide including (a) a nucleotide labeled with a fluorescent substance. The binding probe (B) is formed of an oligonucleotide having (b1) a fluorescent probe binding region, to which the fluorescent probe (A) can hybridize, and (b2) a target nucleic acid binding region, which can hybridize to a target nucleic acid (C). The nucleic acid probe set is designed such that, when the fluorescent probe (A) hybridizes to the fluorescent probe binding region (b1) and the target nucleic acid (C) hybridizes to the target nucleic acid binding region (b2), guanine in the target nucleic acid (C) and the fluorescent substance (d) labeled on the nucleotide (a) interact with each other to change a fluorescent character of the fluorescent substance (d).

Abstract: A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area 62 of a display device 49 displays a permissible velocity setting range and setup operation guidance, and another area 64 shows guidance to indicate whether the setting is acceptable or unacceptable. When the traveling velocity falls within the permissible velocity setting range, the displayed guidance changes to indicate that the setting is acceptable. When, in this instance, an operator presses a setup switch 23 with desired timing, a transmission gear shifting control section 45 acquires the prevailing vehicle velocity and velocity ratio (or vehicle velocity), and stores adjustment values in an adjustment value storage section 43 so that the vehicle velocity and velocity ratio become the gear shifting control threshold values for normal gear shifting control (steps S535 to S545).

Abstract: To provide a novel mixture for assaying a target nucleic acid, characterized by enabling a nucleic acid assay while: 1) requiring no step of diluting the target nucleic acid; 2) requiring no procedure of changing a probe concentration depending on a concentration of the target nucleic acid. 1) A mixture which comprises one internal standard nucleic acid and two nucleic acid probes labeled with a fluorescent dye; 2) a mixture for measuring Km value which comprises one internal standard nucleic acid having a partial mutation and one nucleic acid probe labeled with a fluorescent dye; 3) a mixture which comprises one internal standard nucleic acid and one double nucleic acid probe labeled with two fluorescent dyes; and a method for assaying a nucleic acid by making use thereof.

Abstract: To provide a steering system for a construction vehicle, which is suited not only for traveling on general roadways but also for work at construction sites and can perform high-reliability steering control. A steering system for a construction vehicle is provided with a directional control valve 5 for controlling a flow of pressure oil to body-articulating hydraulic cylinders 2 that perform steering and also with a steering-wheel-operated signal generation means 6 for outputting by operation of a steering wheel 7a a pilot signal to the directional control valve 5 for switching the valve 5.

Abstract: A work machine gear shifting control device is capable of readily identifying the cause of failure in learning the clutch hydraulic pressure for operating a transmission clutch. A transmission gear shifting control section 46 is provided for each of clutches 61-65, and performs a learning process in which each of a plurality of handling processes learns the clutch hydraulic pressure for each of the clutches 61-65 and determines the clutch hydraulic pressure characteristic values for operating the individual clutches. Further, the transmission gear shifting control section 46 performs a learning monitoring process in each of the plurality of handling processes to formulate an error judgment, which indicates whether learning has failed in each of the plurality of subprocesses, and displays the result of the judgment.

Abstract: A priority valve 7 is disposed between a hydraulic pump 2 and a steering valve 4 and is used to supply priority steering cylinders 103a and 103b with pressurized oil discharged from the hydraulic pump 2 by controlling the differential pressure across a meter-in hydraulic line of the steering valve 4 such that the differential pressure is kept at a target value. A pressure sensor 31 for detecting the load pressures of the steering cylinders 103a and 103b is provided. On the basis of the detected load pressures, the target value set for the priority valve 7 is modified by devices including a controller 32, a solenoid valve 33, a pilot hydraulic line 29, and a pressure receiving unit 24c of the priority valve 7. The above configuration enables suppression of a shock occurring at the start of turning of the steering wheel.

Abstract: In a multilayer wiring board comprising a core board, and a wiring layer and an electrically insulating layer that are stacked on one surface of said core board, a thermal expansion coefficient of said core board in XY directions falls within a range of 2 to 20 ppm, a core member for said core board is a core member selected from silicon, ceramics, glass, a glass-epoxy composite, and metal, said core board is provided with a plurality of through holes that are made conductive between the front and the back by a conductive material, and a capacitor is provided on one surface of said core board, wherein said capacitor comprises an upper electrode being the conductive material in said through hole, and a lower electrode disposed so as to confront said upper electrode via a dielectric layer.