BE381999A - - Google Patents
Info
- Publication number
- BE381999A BE381999A BE381999DA BE381999A BE 381999 A BE381999 A BE 381999A BE 381999D A BE381999D A BE 381999DA BE 381999 A BE381999 A BE 381999A
- Authority
- BE
- Belgium
- Prior art keywords
- diaphragm
- acoustic
- passage
- chamber
- sound
- Prior art date
Links
- 239000012530 fluid Substances 0.000 description 31
- 230000004044 response Effects 0.000 description 28
- 230000005540 biological transmission Effects 0.000 description 20
- 230000005855 radiation Effects 0.000 description 10
- 230000001965 increasing effect Effects 0.000 description 8
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- 230000014509 gene expression Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BPPVUXSMLBXYGG-UHFFFAOYSA-N 4-[3-(4,5-dihydro-1,2-oxazol-3-yl)-2-methyl-4-methylsulfonylbenzoyl]-2-methyl-1h-pyrazol-3-one Chemical compound CC1=C(C(=O)C=2C(N(C)NC=2)=O)C=CC(S(C)(=O)=O)=C1C1=NOCC1 BPPVUXSMLBXYGG-UHFFFAOYSA-N 0.000 description 1
- 241000238876 Acari Species 0.000 description 1
- 241000272814 Anser sp. Species 0.000 description 1
- 241001091551 Clio Species 0.000 description 1
- 241000775881 Haematopota pluvialis Species 0.000 description 1
- 241001395537 Ia io Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 101710150336 Protein Rex Proteins 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- ZYXYTGQFPZEUFX-UHFFFAOYSA-N benzpyrimoxan Chemical compound O1C(OCCC1)C=1C(=NC=NC=1)OCC1=CC=C(C=C1)C(F)(F)F ZYXYTGQFPZEUFX-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- OWZREIFADZCYQD-NSHGMRRFSA-N deltamethrin Chemical compound CC1(C)[C@@H](C=C(Br)Br)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 OWZREIFADZCYQD-NSHGMRRFSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- FFNMBRCFFADNAO-UHFFFAOYSA-N pirenzepine hydrochloride Chemical compound [H+].[H+].[Cl-].[Cl-].C1CN(C)CCN1CC(=O)N1C2=NC=CC=C2NC(=O)C2=CC=CC=C21 FFNMBRCFFADNAO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229940108461 rennet Drugs 0.000 description 1
- 108010058314 rennet Proteins 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE381999A true BE381999A (enrdf_load_html_response) |
Family
ID=51461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE381999D BE381999A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE381999A (enrdf_load_html_response) |
-
0
- BE BE381999D patent/BE381999A/fr unknown
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