40 results about "Outer nuclear layer" patented technology

Golf ball multi-layered core sub-assemblies and the resulting golf balls are provided. The core structure includes a foam inner core (center); and intermediate and outer core layers. Foamed polyurethane is preferably used to make the inner core. The intermediate and outer core layers are preferably made from non-foamed thermoplastic compositions such as ethylene acid copolymer ionomer. In an alternative version, the intermediate core layer may be made of a thermoset rubber such as polybutadiene. The core layers have different hardness and specific gravity levels. The core structure and resulting ball have relatively good resiliency.

A brake hose has an inner rubber layer, an outer rubber layer, and at least two reinforcing layers provided between the inner rubber layer and the outer rubber layer. The reinforcing layers include an upper yarn layer, and a lower yarn layer. Polyester yarn having a tensile strength of not lower than 6.9 g per unit dtex and having a stretchability of 2.6±1.0% at 2.7 g load per unit dtex is used as lower yarn in the lower yarn layer. The braid angle of the lower yarn layer with respect to the axial direction of the hose is set at 59±2°.

A golf ball includes a unitary core having an outer surface, a geometric center, and a soft transition region adjacent to the outer surface. The core is formed from a substantially homogenous rubber composition. The golf ball also includes an inner cover layer and an outer cover layer. The soft transition region has a thickness of up to 4 mm and a negative hardness gradient of up to 15 Shore C. The unitary core has an overall negative hardness gradient of up to 20 Shore C.

The invention provides a water band production method. The method comprises the following steps of: distributing a plurality of straight terylene lines outside PVC inner glue of a water band in a direction parallel to the central line of the water band to form a first linear fiber layer; forming a second coiled fiber layer outside the first linear fiber layer in a spiral mode; forming a third coiled fiber layer on the outer surface of the second coiled fiber layer in a spiral mode in the opposite direction; introducing the fiber layer into a specific die; and coating soft PVC on the inner side and outer side of the coiled fiber layer to perform moulding at one time. The inner and outer glue layers of the water band prepared by the method are mutually fused and combined together tightly and inseparably. Thus, the wall thickness is more easily controlled, the production process is simplified, the power consumption is greatly reduced and the cost is reduced. The water band is more resistant to high pressure, lighter, more wear resistant and more suitable for water delivery at a long distance.

The invention discloses a simple perforating device for an outer rubber layer of an automobile air conditioner rubber tube. The simple perforating device comprises a pinwheel (1), a beam slab (2), a guide rod (3), a spring (4), a bearing plate (5) and a gasket block (6). In the invention, a technical scheme that a rubber tube is introduced to pass through a pore passage enclosed by outer edges offour pinwheels of which central axes are orthogonal on the same plane and an inserting needle on the pinwheel rim punctures the outer rubber layer of the rubber tube for rolling perforation is adopted to overcome the shortcomings of complicated structure, complexity of debugging, inconvenience of operation, difficulty of maintenance and the like in the prior art. The simple perforating device forthe outer rubber layer of the automobile air conditioner rubber tube enables the perforating device to achieve the aims of simple structure, convenience of operation and simplicity of debugging and maintenance by the way of the pinwheel rolling and puncturing perforation.

The invention relates to the technical field of stem cells, in particular to a retinal progenitor cell and a preparation thereof having a function of treating degenerative retinal diseases. The preservation number of the retinal progenitor cell provided by the invention is CGMCC NO.10419; and the retinal progenitor cell, which can keep a good proliferation ability and stem cell properties, can take a good curative effect on treating the degenerative retinal diseases. Experiments show that the retinal progenitor cell that the preservation number is CGMCC NO.10419, as being injected into the vitreous cavities of RCS rats, can take a protective effect and achieve multi-focal visual electric-physiology display on retinal outer nuclear layer cells; and in dark adaptation, potential change conducted by retinal nerve photoreceptor cells in a retinal progenitor cell injection group is more obvious than that in a group which is just injected with an HBSS (Hanks balanced salt solution) buffer solution. A water maze test also indicates that the visual function of the rats in the retinal progenitor cell injection group is improved. In addition, all rats injected with the retinal progenitor cell that the preservation number is CGMCC NO.10419 are free from abnormity.

The invention relates to a high-definition imaging system for rapid capture of retinal microvessels with a diameter below 10 microns and adaptive aberration correction in the optical imaging technology for adaptive correction of eye wave aberration. As shown in the figure: the surface of the visual cell layer is used as the reference position along the optical axis; the distance between the public area of ​​the inner core layer of a large number of human microvessels and the center plane of the public area relative to the reference position is calculated; the human eye is equivalent to a lens, and the current The human eye optical model simulates the relationship between the effective focal length of the human eye and the axial length of the human eye; the measured axial length of the human eye is substituted into the relationship between the effective focal length of the human eye and the axial length of the human eye to calculate the effective focal length of the human eye; Finally, according to the optical parameters of the adaptive optics imaging light path, the image plane position of the central plane of the common area of ​​the inner core layer is calculated, and the imaging camera is set here so that the eyes of the patient under inspection are only irradiated with visible light shorter than 18ms during one inspection, that is, It can complete the clear imaging of micro blood vessels in the inner core layer with a diameter of about 10 μm.

The invention relates to the technical field of stem cells, and especially relates to a method and kit for identifying retinal progenitor cells capable of treating retinal degenerative change. The method comprises the following steps: culturing retinal progenitor cells to the logarithmic phase, and carrying out flow cytometry identification, wherein the retinal progenitor cells that meet the identification standards are capable of treating retinal degenerative change. The retinal progenitor cells identified by the provided method can maintain a good proliferation performance and stem cell characteristics and have a good curative effect when being applied to the treatment on retinal degenerative change. The experiment results show that after the retinal progenitor cells identified by the provided method are injected into the vitreous body cavities of RCS mice, the retinal outer nuclear layer cells are protected; the multifocal visual electrophysiology examination results show that the change of potential transmitted by retinal photoreceptor cells of the cell injection group is more prominent than the group, which is only injected with a HBSS buffer solution. The water maze experiment results also show that after injection, the visual performance of mice is improved.