Betekenis van:
b cell

b cell
Zelfstandig naamwoord
    • a lymphocyte derived from bone marrow that provides humoral immunity; it recognizes free antigen molecules in solution and matures into plasma cells that secrete immunoglobulin (antibodies) that inactivate the antigens

    Synoniemen

    Hyperoniemen


    Voorbeeldzinnen

    1. p B atmospheric pressure in the test cell (kPa)
    2. For the purpose of 3A001.e.1.b., a ’secondary cell’ is a ’cell’ that is designed to be charged by an external electrical source.
    3. for the purpose of 3A001.e.1.b., a "secondary cell" is a "cell" that is designed to be charged by an external electrical source.
    4. A capability of penetrating 0,6 m or more of hot cell wall (through-the-wall operation); or b. A capability of bridging over the top of a hot cell wall with a thickness of 0,6 m or more (over-the-wall operation).
    5. Kerr or Pockels cell electro-optical shuttering; d. Other framing tubes and solid-state imaging devices having a fast-image gating time of less than 50 ns specially designed for cameras specified in 6A203.b.3.;
    6. Three validated in vitro Test Methods or Test Guidelines, B.40, B.40bis and TG 435 (4, 5, 6), are useful for the corrosivity part of the sequential testing strategy of B.4. This Test Method is based on reconstructed human epidermis models, which in their overall design (the use of human derived epidermis keratinocytes as cell source, representative tissue and cytoarchitecture) closely mimic the biochemical and physiological properties of the upper parts of the human skin, i.e. the epidermis.
    7. For the somatic cell count, when the methods are validated against the reference method mentioned in point 1(b) in accordance with the protocol set out in ISO 8196 and when operated in accordance with ISO standard 13366-2 or other similar internationally accepted protocols.
    8. which meets the plate and somatic cell count standards laid down in Directive 92/46/EEC, Annex A, Chapter IV, paragraph A, point 3 as regards cow's milk, paragraph B, point 2 as regards buffalo milk, and paragraph C, point 2 as regards goat's and sheep's milk, and
    9. Solid, liquid or gaseous substances or mixtures of substances which, in their application as primary, booster, or main charges in warheads, demolition and other applications, are required to detonate. ML7 ‘Expression Vectors’ Carriers (e.g. plasmid or virus) used to introduce genetic material into host cells. ML 17 ‘Fuel cell’ An electrochemical device that converts chemical energy directly into Direct Current (DC) electricity by consuming fuel from an external source. ML13 ‘Fibrous or filamentary materials’ Include: a. Continuous monofilaments; b. Continuous yarns and rovings; c. Tapes, fabrics, random mats and braids; d. Chopped fibres, staple fibres and coherent fibre blankets; e. Whiskers, either monocrystalline or polycrystalline, of any length; f. Aromatic polyamide pulp.
    10. "Hot isostatic densification" (2) means the process of pressurising a casting at temperatures exceeding 375 K (102 °C) in a closed cavity through various media (gas, liquid, solid particles, etc.) to create equal force in all directions to reduce or eliminate internal voids in the casting. "Hybrid computer" (4) means equipment which can perform all of the following: a. Accept data; b. Process data, in both analogue and digital representations; and c. Provide output of data. "Hybrid integrated circuit" (3) means any combination of integrated circuit(s), or integrated circuit with ’circuit elements’ or ’discrete components’ connected together to perform (a) specific function(s), and having all of the following characteristics: a. Containing at least one unencapsulated device; b. Connected together using typical IC production methods; c. Replaceable as an entity; and d. Not normally capable of being disassembled. N.B. 1:’Circuit element’: a single active or passive functional part of an electronic circuit, such as one diode, one transistor, one resistor, one capacitor, etc. N.B. 2:’Discrete component’: a separately packaged ’circuit element’ with its own external connections. "Image enhancement" (4) means the processing of externally derived information-bearing images by algorithms such as time compression, filtering, extraction, selection, correlation, convolution or transformations between domains (e.g., fast Fourier transform or Walsh transform). This does not include algorithms using only linear or rotational transformation of a single image, such as translation, feature extraction, registration or false coloration. "Immunotoxin" (1) is a conjugate of one cell specific monoclonal antibody and a "toxin" or "sub-unit of toxin", that selectively affects diseased cells.
    11. The total diluted exhaust gas flow over the cycle MTOTW (kg/test) shall be calculated from the measurement values over the cycle and the corresponding calibration data of the flow measurement device (V0 for PDP, KV for CFV, Cd for SSV): the corresponding methods described in section 2.2.1. may be used. If the total sample mass of particulates (MSAM) and gaseous pollutants exceeds 0,5 % of the total CVS flow (MTOTW), the CVS flow shall be corrected for MSAMor the particulate sample flow shall be returned to the CVS prior to the flow measuring device. 2.2.1. Determination of the diluted exhaust gas flow PDP-CVS system The calculation of the mass flow over the cycle, if the temperature of the diluted exhaust is kept within ± 6 K over the cycle by using a heat exchanger, is as follows: MTOTW = 1,293 x V0 x NP x (pB - p1) x273/(101,3 x T) where MTOTW mass of the diluted exhaust gas on wet basis over the cycle V 0 volume of gas pumped per revolution under test conditions (m3/rev) N P total revolutions of pump per test p B atmospheric pressure in the test cell (kPa) p 1 pressure drop below atmospheric at the pump inlet (kPa) T average temperature of the diluted exhaust gas at pump inlet over thecycle (K) If a system with flow compensation is used (i.e. without heat exchanger), the instantaneous mass emissions shall be calculated and integrated over the cycle. In this case, the instantaneous mass of the diluted exhaust gas shall be calculated as follows: MTOTW,i = 1,293 x V0 x NP, i x (pB - p1) x 273/(101,3 x T) where N P, i total revolutions of pump per time interval CFV-CVS system The calculation of the mass flow over the cycle, if the temperature of the diluted exhaust gas is kept within ± 11 K over the cycle by using a heat exchanger, is as follows: