Abstract: A shovel that corrects the movement of an attachment regardless of the operating state of the attachment by an operator is provided. The shovel includes a traveling body, a turning body turnably mounted on the traveling body, an attachment attached to the turning body, a hydraulic actuator configured to drive the attachment, and a controller. The controller is configured to control the hydraulic actuator to minimize a change in orientation of the traveling body or of the turning body, in response to a change in moment caused by an aerial movement of the attachment.

Abstract: A construction machine includes a hydraulic cylinder configured to drive an attachment, a hydraulic circuit configured to supply hydraulic oil to the hydraulic cylinder, an input device that is operated by an operator, and a controller configured to control the hydraulic circuit in at least one of a first control mode where the attachment is caused to generate a force corresponding to an operation amount of the input device and a second control mode where the attachment is driven at a velocity corresponding to the operation amount of the input device.

Abstract: An excavator includes a traveling body, an upper turning body rotatably provided on the traveling body, an attachment which has a boom, an arm, and a bucket and is attached to the upper turning body, and a controller configured to perform a control of a cylinder of at least one shaft of the attachment so as to suppress a vibration of the traveling body or the upper turning body, which is caused by an aerial operation of the attachment.

Abstract: A polycrystalline silicon rod is synthesized by the Siemens method (S101). After the polycrystalline silicon rod is covered from above with a plastic bag whose inner surface has been washed, and housed in the plastic bag in a reactor (S103), the polycrystalline silicon rod is removed out of the reactor (S104), and heat-sealed and stored in an enclosed state (S105). According to the present invention, steps conventionally considered as essential, such as washing, etching, and water washing, are not always necessary, and therefore the concentrations of fluorine ions, nitrate ions, and nitrogen dioxide ions remaining on the surface can each be less than 0.2 ppbw. In addition, by covering with the plastic bag, the metal contamination levels decrease significantly. Moreover, when the handling according to the present invention is performed, surface contamination hardly proceeds even if the polycrystalline silicon rod is stored for a long period.

Abstract: A shovel includes a traveling body, an upper turning body turnably provided on the traveling body, an attachment including a boom, an arm, and a bucket and attached to the upper turning body, and a processor. The processor is configured to correct a motion of the boom cylinder of the attachment in such a manner as to control a lift of the rear of the traveling body with the front of the traveling body serving as a tipping fulcrum. The processor is configured to correct the motion of the boom cylinder based on a rod pressure and a bottom pressure of the boom cylinder.

Abstract: A shovel includes a traveling body, an upper turning body turnably provided on the traveling body, an attachment including a boom, an arm, and a bucket and attached to the upper turning body, and a processor. The processor is configured to correct the motion of the attachment in such a manner as to control a slip of the traveling body toward the back in the extension direction of the attachment.

Abstract: In the present invention, as a bag to store polycrystalline silicon ingots, there is used a bag in which the concentration of paraffinic hydrocarbons in a concentrate of solvent-soluble components obtained by Soxhlet extraction using acetone as a solvent is lower than 300 ppmw as a value measured by GC-MS method; the concentration of antioxidants, lower than 10 ppmw; the concentration of ultraviolet absorbents, lower than 5 ppmw; and the concentration of antistatic agents and surfactants, lower than 50 ppmw. Then, when the polycrystalline silicon ingots are packed, preferably, the polycrystalline silicon ingots are put in the storage bag; thereafter, the storage bag is sealed; further, the storage bag is put and sealed in a linear low-density polyethylene bag containing an antistatic agent or a surfactant added in the bag material.

Abstract: An excavator attachment is attached to a rotating platform of an excavator. A display unit visually displays a predicted stability indicating stability of the posture of the excavator after the excavator is manipulated.

Abstract: The present invention provides a clean and high-purity polycrystalline silicon mass having a small content of chromium, iron, nickel, copper, and cobalt in total, which are heavy metal impurities that reduce the quality of single-crystal silicon. In the vicinity of an electrode side end of a polycrystalline silicon rod obtained by the Siemens method, the total of the chromium, iron, nickel, copper, and cobalt concentrations is high. Accordingly, before a crushing step of a polycrystalline silicon rod 100, a removing step of removing at least 70 mm of a polycrystalline silicon portion from the electrode side end of the polycrystalline silicon rod 100 extracted to the outside of a reactor is provided. Thereby, the polycrystalline silicon portion in which the total of the chromium, iron, nickel, copper, and cobalt concentrations in a bulk is not less than 150 ppta can be removed.

Abstract: A fluid structure interaction simulation method includes a graph information forming process to form graph information of nodes obtained by discretizing a computing region for each of a fluid and a structure that are represented by meshes, and a main time development loop process to simulate a physical phenomenon. The loop process includes arranging IMEs (Interaction Mediating Elements) that move with a displacement of the structure, on a boundary of the structure, defining, within the IME, correcting functions of a pressure and a velocity of the fluid that interact with the pressure and the velocity of the fluid and the displacement of the structure, and executing a simulation based on the correcting functions, in a state in which the meshes of the fluid are mismatched to the meshes of the structure.

Abstract: An excavator attachment is attached to an excavator rotating platform. During normal operation, a drive means drives the attachment according to operator input into a manipulation device. A sensor detects motion of the excavator. Based on output of the sensor, a slip suppression unit detects slipping of the excavator undercarriage in an extension direction of the attachment, and corrects operation of the attachment performed by the drive means.

Abstract: A polycrystalline silicon rod grown from monosilane as a raw material, having a crystal grain diameter in the range of 0.5 to 10 ?m, with an average grain diameter in the range of 2 to 3 ?m, as determined from an electron backscatter diffraction image obtained by irradiating a principal plane of a plate-like specimen collected from an arbitrary site with an electron beam, the principal plane being a cross-section perpendicular to the radial direction of the polycrystalline silicon rod, has a good FZ, L % value. The polycrystalline silicon rod further having a thermal diffusivity value measured on the principal plane of the plate-like specimen in the range of 75 to 85 mm2/sec at 25±1° C. has a good FZ, L % value and is suitable as a raw material for single crystallization.

Abstract: A geometric model of an organ represents its shape as a collection of elements formed from nodes and connections among them. A first vessel network model represents a network of first vessels whose diameters are larger than or equal to a threshold. A plurality of second vessel networks each represent a network of second vessels whose diameters are smaller than the threshold. In a simulator apparatus, a first analysis unit analyzes hemodynamics in the first vessels, based on the geometric model and first vessel network model of the organ and reflecting the motion of the organ. A second analysis unit analyzes hemodynamics in the second vessel network models connected to the nodes, by using output data of the first analysis unit which indicates the hemodynamics in the first vessels at each of the nodes.

Abstract: In the present invention, as a bag to store polycrystalline silicon ingots, there is used a bag in which the concentration of paraffinic hydrocarbons in a concentrate of solvent-soluble components obtained by Soxhlet extraction using acetone as a solvent is lower than 300 ppmw as a value measured by GC-MS method; the concentration of antioxidants, lower than 10 ppmw; the concentration of ultraviolet absorbents, lower than 5 ppmw; and the concentration of antistatic agents and surfactants, lower than 50 ppmw. Then, when the polycrystalline silicon ingots are packed, preferably, the polycrystalline silicon ingots are put in the storage bag; thereafter, the storage bag is sealed; further, the storage bag is put and sealed in a linear low-density polyethylene bag containing an antistatic agent or a surfactant added in the bag material.

Abstract: For evaluating a polycrystalline silicon rod to be used as a raw material for production of FZ Si single crystals, novel evaluation values (values of characteristics×amount of crystals) including the amount of crystals grown in the growth direction (radial direction) are defined and the homogeneity in crystal characteristics in the growth direction (radial direction) is evaluated. Specifically, the homogeneity of the polycrystalline rod is evaluated by sampling a plurality of specimen plates each having, as a principal plane thereof, a cross-section perpendicular to a radial direction of the polycrystalline rod grown by a Siemens method at equal intervals in the radial direction, determining values of characteristics of the crystals of the specimen plates by measurements, and by using evaluation values obtained by multiplying amounts of the crystals (relative amounts of the crystals) at sites where the specimen plates have been sampled by the values of the crystal characteristics.

Abstract: A construction machine includes a hydraulic cylinder configured to drive an attachment, a hydraulic circuit configured to supply hydraulic oil to the hydraulic cylinder, an input device that is operated by an operator, and a controller configured to control the hydraulic circuit in at least one of a first control mode where the attachment is caused to generate a force corresponding to an operation amount of the input device and a second control mode where the attachment is driven at a velocity corresponding to the operation amount of the input device.

Abstract: In a biological simulation apparatus, an operation unit represents a structure domain where tissues of a biological organ exist by a structure mesh model based on a Lagrange description method and a fluid domain where fluid inside the biological organ exists by an ALE fluid mesh model based on an ALE description method. In a fluid-structure interaction simulation, the operation unit deforms the structure mesh model, and then deforms the ALE fluid mesh model so as to form no gap on a first interface between a domain where a site other than a certain site of the biological organ in the structure domain exists and the fluid domain or no overlap with the structure domain. The operation unit captures a position of a second interface between a domain where the certain site exists and the fluid domain by using the ALE fluid mesh model as a reference.

Abstract: Plate-like samples each having as a principal plane thereof a cross section perpendicular to the long axis direction of a polycrystalline silicon rod grown by the deposition using a chemical vapor deposition method are sampled; an X-ray diffraction measurement is performed omnidirectionally in the plane of each of the plate-like samples thus sampled; and when none of the plate-like samples has any X-ray diffraction peak with a diffraction intensity deviating from the average value ±2×standard deviation (?±2?) found for any one of the Miller indices <111>, <220>, <311> and <400>, the polycrystalline silicon rod is selected as the raw material for use in the production of single-crystalline silicon. The use of such a polycrystalline silicon raw material suppresses the local occurrence of the portions remaining unmelted, and can contribute to the stable production of single-crystalline silicon.

Abstract: A polycrystalline silicon rod is synthesized by the Siemens method (S101). After the polycrystalline silicon rod is covered from above with a plastic bag whose inner surface has been washed, and housed in the plastic bag in a reactor (S103), the polycrystalline silicon rod is removed out of the reactor (S104), and heat-sealed and stored in an enclosed state (S105). According to the present invention, steps conventionally considered as essential, such as washing, etching, and water washing, are not always necessary, and therefore the concentrations of fluorine ions, nitrate ions, and nitrogen dioxide ions remaining on the surface can each be less than 0.2 ppbw. In addition, by covering with the plastic bag, the metal contamination levels decrease significantly. Moreover, when the handling according to the present invention is performed, surface contamination hardly proceeds even if the polycrystalline silicon rod is stored for a long period.

Abstract: When a plate-like sample 20 extracted from a polycrystalline rod is evaluated, peaks can appear in a ?-scanning chart. The smaller the number of such peaks, and the narrower the half-value width of the peak, the more suitable the polycrystalline silicon rod is as a raw material for producing single-crystal silicon. It is preferable that the number of peaks in the ?-scanning chart is, for both the Miller index planes <111> and <220>, equal to or smaller than 24/cm2 when converted into unit per area of the plate-like sample. It is also preferable that the value obtained by multiplying the peak half-value width by ?L=21/2?R0/360, where R0 is the radius of the sample, is defined as an inhomogeneous crystal grain size, and that a polycrystalline silicon rod of which all the inhomogeneous crystal grain sizes are smaller than 0.5 mm is selected as a raw material for producing single-crystal silicon.