Abstract:
Known artificial habitats in polyhedron form for crustaceans on aquatic soft floors having independent stability and structured surfaces either have an extremely small structure at the transition to the aquatic soft floor or no such structure. However, crabs are hard floor animals and settle in soft floors only under hard components. The artificial habitat (01) according to the invention is therefore characterized by a symmetrical solid body (02) in tetrahedron form with four identical sides (03), each forming a possible standing surface (04) and in the surfaces (07) of which three channel-shaped main passages (06) are arranged extending along the median (22) from the side edge (08) as far as a common intersecting point (09) in the side centre of gravity (10). As a result, the solid body (02) in tetrahedron form constitutes a particularly attractive artificial habitat (01) for crustaceans because the latter are provided with main passages (06) as entry aids (11) and with initial cavities and sufficiently large surfaces (07) in the sides (03) of the solid body (02), which can preferably be used by the crustaceans for building cavities (12) for themselves below the solid body (02). Connecting passages (19) make it possible to save on material, for example lightweight concrete, and to achieve better handling, additionally also in uses as a fishing block or pond protector.
Abstract:
The invention relates to a security system, based on the optical identification of highly specific, spatially appearing microstructures in a substrate using a micro-optical magnification system that is integrated in the substrate. Known systems disclose a microlens array having a plurality of optical axes, which is disposed over a micro-image array and generates only a virtual spatial overall image. For a highly complex spatial image, which cannot be imitated or only with extreme effort, the invention is characterized in that the micro-optical magnification system (05) has a single optical axis (15) and the micro-structure is formed directly by the spatially configured surface of at least one individual micro-particle or nano-particle (02), which is embedded in a transparent embedding medium (03) on the optical axis (15) of the micro-optical magnification system (05). With the invention, thus the real three-dimensional nature of special micro-particles or nano-particles (02) having highly specific micro-structure patterns on the surfaces thereof, which cannot be imitated, are used and provided as a public security feature due to the microlens magnification.
Abstract:
Disclosed is a bioremediation method for accelerated biological decomposition of petroleum hydrocarbons in sea ice-covered polar regions as well as bacteria and enzyme mixtures as agents for carrying out said method. Suitable bacterial strains and enzymes obtained therefrom can be produced by concentrating and isolating bacteria in a laboratory in real ice conditions at -3°C and with oil contamination. Eleven preferred bacterial strains have been filed with the German Collection of Microorganisms and Cell Cultures Ltd. (DSMZ).
Abstract:
Marine organisms such as algae and barnacles, choose sea surfaces for colonizing, as a result of which loss of function and increase in weight and friction can disadvantageously occur. Silicone oils, permanently cross-linked silicone resins or silicone particles in cross-linked resins, all of which being used for protecting against fouling (top curve), do not achieve any optimal results since no individual adaptation to the prevailing environmental conditions ensues. The inventive polymeric coating paste, on the contrary, has a defined rheological switching behavior (bottom curve) based on a flow point, which can be set to the hydrodynamic and biological environmental conditions for the part and which is between 5 Pa and 2000 Pa above the wall shear stress of the unfouled part to be protected. When the part is in a state in which it is not fouled, the nontoxic and hydrophobic coating paste forms a solid colonization substrate. In the minimally burdened state, the coating paste liquefies and acts as a loss layer thereby having a self-cleaning effect. The flow point can be set by selecting the composition base of the paste and by the homogeneous mixing thereof with fillers that increase or decrease shear. The rheological switching behavior makes it possible to efficiently prevent permanent fouling on sea structures.
Abstract:
Therefore, the device (01) according to the invention has climbing aids (08) in the form of guide profiles (09), which are fastened to the offshore construction (02) in the vertical, horizontal, and/or diagonal direction at least in some sections and/or continuously. The guide profiles (09) are preferably designed as rib-shaped flat profiles (10) and further structured by flat transverse profiles (12), which are also used for making breeding places. The flat profiles (10) can be made of construction steel and are simply welded to the offshore construction (2) during production or installation. The guide profiles (09) can also form circumferential one-piece or multi-piece spirals. Structural collars (17) having nets (18) or grates (20) arranged between two openable annular guide profiles (15) can also be formed. In addition, pipe elements (24) and connecting elements (25) can be provided in order to further improve attractiveness. By means of the device (01) according to the invention, artificial offshore constructions (02), such as wind turbines, can be sustainably developed in the underwater area (32) as additional living space for vagile hard epifauna and efficiently used in a secondary manner.
Abstract:
The invention relates to enzymes from the specific groups of calpain proteases, which take part in a plurality of metabolic processes, e.g. by acting on the apoptosis, for certain cancerous diseases and during cell migration. The invention also relates to enzymes from the group of metalloproteases which develop, e.g. activities during fertilisation, and take part in blood pressure regulation as ACEs and as collagenases in collagen metabolism. A potential need of such enzymes is mainly covered today by plant and animal sources. Known organisms in which such proteases naturally occur exclusively come from warmer regions, such that a costly heat supply necessitating complex apparatus is required during the production thereof. Organisms comprising enzymes adapted to the cold are known however. The invention thus also relates to nucleic acid sequences coding for a calpain 7 protease and a zinc metalloprotease, which originate from the marine diatoms Fragilariopsis cylindrus adapted to the cold and correspond to SEQ ID No.1, SEQ ID No.2 or functional variants or fragments having at least 8 nucleotides thereof.
Abstract translation:从钙蛋白酶蛋白酶的特定组酶参与许多代谢过程,例如 通过影响细胞凋亡,尤其是癌症和细胞迁移。 选自金属蛋白酶的酶例如开发 在施肥活动,参与血压调节和胶原酶BEM胶原代谢比ACE。 一种可能需要对这种酶必须今天主要满足来自植物和动物来源。 其中这种蛋白酶天然存在已知有机体来排他地从较温暖的地区,从而需要它们的生产的热量的经济上和技术上复杂的设备。 但是,有机体也被称为具有冷适应酶。 本发明,因此,要求保护的用于钙蛋白酶7蛋白酶和金属蛋白酶锌编码来自冷适应海洋硅藻Fragilariopsis cylindrus衍生和根据SEQ ID 1号,或SEQ ID No.2或其功能变体或部分具有至少核酸序列 8个核苷酸被其形成。
Abstract:
Known microbiological methods are based on the use of pigment-forming bacteria, especially Chromobacterium violaceum. Said methods are low-yielding and, therefore, large scale applications are not possible. However, the demand for natural blue colorants, which are generally human compatible, is high in many industrial branches and is currently not covered. For this reason, the method according to the invention is characterized in that it uses the marine sediment bacterium Pseudoalteromonas spezies, strain "Black Beauty" as a pigment-forming bacterium. With said marine sediment bacterium, the yield increases approximately thirteen times in comparison with known methods.
Abstract:
The operation of devices for measurements and experiments in the sea requires energy for various consumers. The aim of the invention is to produce a discontinuous operation drive which is suitable for all water depths and can be charged once with the required amount of energy. Said aim is achieved, whereby a drive (1) for a working machine to be applied under water, particularly, in the deep sea, is provided, whereby the power transmission device (2) consists of a driven shaft (6), a coupled rope winch (7) with a cable (8) which can be rolled up, transmission elements and an ratchet mechanism (20), the floating body (11), at the free end of the rope, being a closed, incompressible floatation sphere (12) which can be loaded with buoyancy energy. During the lowering of the drive (1), potential energy is absorbed by means of the stopped floating body (11) and, after the placement of the drive (1), said energy may be converted into a mechanical work by a controlled release of the ratchet mechanism (20).
Abstract:
The invention relates to sequence-specific capture probes for detecting toxic algae by means of selective hybridisation of a complementary nucleic acid sequence which unequivocally characterises the algae to be detected and is in the form of special base sequences which bind to complementary sequences of the rRNA of the small 18S sub-unit or the large 28S sub-unit of the algae-specific ribosome or the single-strand DNA. The invention also relates to an electrochemical detection method for rapidly detecting toxic algae in situ in a liquid sample using at least one immobilised, sequence-specific capture probe (7). According to the inventive method, an auxiliary probe (12) is used to enable or to improve a sandwich hybridisation of the nucleic acid sequence (10) which is characteristic of the algae, and a marked detector probe (11) is used to easily identify said sandwich hybridisation. Both additional probes (11, 12) are located close to the sequence-specific capture probe (7) with as small a distance as possible between sequences, with a maximum difference of between 150 and 200 bases. The invention further relates to an arrangement for carrying out the detection method said arrangement comprising a complete set of disposable biosensor chips (1) which have a three-electrode system (4, 5, 6) and are pre-coated by the corresponding capture probes, and a hand-held display appliance and to the use of said arrangement as an early warning system for toxic algae.
Abstract:
The simultaneous taking of water samples from the bottom of a column of water in the bed water over a water bed is of use for scientific investigation of the transition zone between the water bed and the water column lying above the same, for the determination of parameter gradients. Conventional bed water sampling devices with a horizontal arrangement of the sample containers on different water levels do not generally permit a non-invasive sampling. According to the invention, said ground water sampling device thus comprises a central retainer rod (2) for the sample containers (3), which permanently rotate freely and easily in the bottom currents by means of a flow vane (6). All sample containers (3) comprise sealing devices (16) on both front faces (14, 15) and are flushed through with bed water originating from the corresponding level before the sampling. All sealing devices (16) are essentially instantaneously operated by means of a time-controlled actuator (10) which is mechanically activated by pushing up a trigger plate (8) after the adequately long placement of the ground water sampling device (1). High-resolution profiles of various parameters can thus be simply, precisely and reproducibly determined even in water of great depth, by means of said simple and robust bed water sampling device (1), which can be lowered by means of a simple steel cable (7).