摘要:
To provide a glass for an information recording medium substrate, which is excellent in weather resistance.A glass substrate for an information recording medium, which is made of an alkali aluminosilicate glass, wherein the difference obtained by subtracting the glass transition temperature Tg from the fictive temperature Tf, i.e. Tf−Tg, is at most 5° C. The glass substrate for an information recording medium, which comprises, as represented by mol % based on the following oxides, from 64 to 67% of SiO2, from 8 to 10% of Al2O3, from 10 to 13% of Li2O, from 9 to 12% of Na2O, from 0 to 2% of K2O and from 2 to 4% of ZrO2, provided that the total content of Li2O, Na2O and K2O, i.e. Li2O+Na2O+K2O, is from 21 to 25%.
摘要翻译:提供耐候性优异的信息记录介质基板用玻璃。 用于由铝硅酸铝玻璃制成的信息记录介质的玻璃基板,其中通过从假想温度Tf(即Tf-Tg)减去玻璃化转变温度Tg得到的差值为至多5℃。玻璃基板 对于信息记录介质,其包含以下列氧化物的摩尔%表示:SiO 2 64%〜67%,Al 2 O 3 8〜10%,Li 2 O 10〜13%,Li 2 O 9〜12% Na 2 O,0〜2%的K 2 O和2〜4%的ZrO 2,条件是Li 2 O,Na 2 O和K 2 O(即Li 2 O + Na 2 O + K 2 O)的总含量为21〜25%。
摘要:
In a portable biological information monitor apparatus, a pulse wave detection signal obtained by light emission from a green LED and a body motion detection signal obtained by light emission from an infrared LED are detected as biological information. This biological information is analyzed to compute various barometers. In a wake normal mode of a set generation mode, body motion and pulse are calculated as wake evaluation barometers for evaluation of a test subject's status in wake. In a wake steady state motion mode, body motion, pulse, and pitch are calculated as motion evaluation barometers for evaluation of the test subject's status in steady state motion. In a sleep mode, body motion, pulse, and autonomic nervous function are calculated as sleep evaluation barometers for evaluation of the test subject's status in sleep. Necessary barometers are thereby generated regardless of the test subject's action using the portable monitor apparatus alone.
摘要:
An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected light from the subject with a light sensitive element. A subtractor subtracts a d.c. component from a sensed signal provided by the light sensitive element, thereby extracting a variation component. The subtractor has its output signal amplified with an amplifier, with the output thereof being A/D-converted with an A/D converter.
摘要:
A glass for a data storage medium substrate, which consists essentially of the following components as represented by mol %: SiO2 60 to 72, Al2O3 2 to 9 MgO 3 to 9, CaO 2 to 10, SrO 0 to 15, ZnO 0 to 4, TiO2 0 to 8, ZrO2 0 to 4, Li2O 1 to 12, Na2O 0 to 8, K2O 0 to 5, Y2O3 0 to 5, La2O3 0 to 5, and Li2O + Na2O + K2O 4 to 15, and which has a Young's modulus of at least 85 GPa.