Abstract: A liquid discharge apparatus includes a storage section that stores a liquid between a first surface and a second surface, and a flexible printed substrate for detecting a remaining amount of the liquid in the storage section, in which the flexible printed substrate includes a first wiring portion having an input electrode provided on the first surface, a first detection electrode provided on the second surface, and a second wiring portion having a second detection electrode provided on the second surface and a third detection electrode provided on the second surface, and an area of a first region of the input electrode overlapping the first detection electrode is smaller than an area of a second region of the input electrode overlapping the second detection electrode, and an area of a third region of the input electrode overlapping the third detection electrode is smaller than the area of the second region.

Abstract: A liquid discharge apparatus includes a first storage section that stores a liquid in a space between a first surface and a second surface, a second storage section that stores a liquid in a space between a third surface and a fourth surface, a first flexible printed substrate including a first wiring portion including a first electrode provided on the first surface and a second wiring portion including a second electrode provided on the second surface, and a second flexible printed substrate including a third wiring portion including a third electrode provided on the third surface, the second wiring portion has a first shield electrode that is located between the second electrode and the third wiring portion for shielding the second electrode, and the third wiring portion does not have a shield electrode for shielding the third electrode between the third electrode and the second wiring portion.

Abstract: First nuclear fuel elements in which a fissionable material in which a burnable poison is incorporated is loaded and second nuclear fuel elements in which a fissionable material in which no burnable poison is incorporated is loaded are disposed in a nuclear fuel assembly. Content of the fissionable material in the first nuclear fuel element is less than about 72% of that of the fissionable material in the second nuclear fuel element adjacent to the first nuclear fuel element.

Abstract: In raising the power of a nuclear reactor, before the linear heat generating rate of nuclear fuel elements arranged in the core of the nuclear reactor reaches 240 W/cm, the power rise of the reactor is suspended at least once and the reactor power is held at the fixed level. The raise of the power of the nuclear reactor before the arrival of the linear heat generating rate at 240 W/cm is performed by pulling out control rods inserted into the core. When the linear heat generating rate exceeds 240 W/cm, the power of the nuclear reactor is gradually raised in such a way that the linear heat generating rate is increased in a proportion of below about 1.8 W/cm/hour by increasing the flow rate of a coolant supplied to the core.

Abstract: A method of starting operation of a nuclear reactor which contains fresh fuel rods comprising increasing a fuel power P(Kw/ft) produced by the fresh fuel rods to an amount determined by the following inequality;P< 366.times.(G/D)- 1.38,where D is a diameter of a fuel pellet of the fresh fuel rod and G is an initial gap between a fuel cladding of the fresh fuel rod and the fuel pellet, maintaining the fuel power at the amount for a predetermined period and thereafter increasing the fuel power to a desired maximum power level.BACKGROUND OF THE INVENTIONThe present invention relates to a method of starting operation of a nuclear reactor having fresh fuel rods of the type containing nuclear fuel covered with fuel rod claddings. (The term "fresh fuel rod" is utilized herein to designate a fuel rod which has not been irradiated or used.