Abstract:
A sputtering apparatus includes a chamber including a first sidewall and defining a number of evenly spaced first through holes on the first sidewall, a number of slide rails radially extending outwards from the first sidewall corresponding to each first through hole, a number of target holders defining at least two sputtering faces and slidably engaged with the slide rails, and a target material mounting on the sputtering faces. The target holder includes a shaft; the sputtering face capable of rotating about the shaft. The target holders are fastened to the first sidewall with one of the sputtering faces facing the first through hole, the sputtering face capable of being replaced by rotating about the shaft.
Abstract:
An exemplary street lamp for being stalled on the ground includes a light source, a light pervious member and a direction indicator. The light pervious member includes a light incident surface and an opposite light emitting surface for facing the ground. The light source is arranged opposite to the light incident surface. The direction indicator is arranged on the light pervious member for projecting the shadow thereof on the ground to indication a direction at the geographic location of the street lamp.
Abstract:
The present invention provides a novel promoter sequence derived from a promoter of geminivirus, a eukaryotic virus, and has the characteristics of prokaryotic promoters. The isolated sequence includes SEQ ID NO: 5, which can drive the expression of foreign genes in prokaryotic cells to a high level utilizing the prokaryotic RNA polymerases. The present invention is a constitutive promoter which does not require the addition of external inducers to promote high-level gene expressions. The promoter activity of the present invention is 15-fold higher than the Rep gene promoter of geminivirus, which is also active in prokaryotic cells. Compared to the promoter activity of the standard constitutive prokaryotic promoter rrnB P1, the activity of the present invention is 11.1% higher. The activity of the present invention is additive when concatenated in the same polarity in the constructs, further enhancing the expression level of genes.
Abstract translation:本发明提供了源自双子a病毒真核病毒启动子的新型启动子序列,具有原核启动子的特征。 分离的序列包括SEQ ID NO:5,其可以利用原核RNA聚合酶将原核细胞中的外源基因的表达驱动到高水平。 本发明是一种组成型启动子,其不需要添加外部诱导物来促进高水平的基因表达。 本发明的启动子活性比双原子病毒的Rep基因启动子高15倍,这也是在原核细胞中也有活性的。 与标准组成型原核启动子rrnB P1的启动子活性相比,本发明的活性高11.1%。 当在构建体中以相同的极性连接时,本发明的活性是加成的,进一步提高了基因的表达水平。
Abstract:
A sputtering deposition method is utilized by a sputtering deposition apparatus including a first chamber, a second chamber, a first carrier, and a second carrier. Some first substrates are positioned in the first carriers in the first chamber for heating. The first carriers in the first chamber and the second carriers in the second chamber are exchanged. The first substrates in the second chamber are sputtered. The second carriers in the first chamber and the first carriers in the second chamber are exchanged. The first substrates in the first chamber are taken out.
Abstract:
An exemplary multi-layer film includes a top layer, a bottom layer and medium layer. The top layer is configured for reflecting part of incident light to be a first reflected light and allowing another part of the incident light to transmit therethrough. The bottom layer is capable of clinging to the substrate, and is configured for reflecting the transmitted light to be a second reflected light. The medium layer is sandwiched between the top layer and the bottom layer, and is configured for controlling a light path difference between the first reflected light and the second reflected light, such that the first and second reflected lights interfere with each other and provide the multi-layer film with a desired color appearance.
Abstract:
An exemplary film coating holder includes a main body, a holding member, a first target electrode, a second target electrode and a driving module. The main body defines a chamber therein. The holding member receives in the chamber and has a plurality of through holes. The through holes being configured for receiving workpieces to be coated. The first target electrode and the second target electrode disposed on the main body and configured for supporting a first target material and a second target material respectively. The driving member is disposed on the main body and mechanically coupled with the holding member, and configured for driving the holding member to rotate about a horizontally oriented axis, thus the first targeted material and the second targeted material can be respectively deposit on opposite sides of each of the workpieces.
Abstract:
A coating auxiliary device, for coating hollow workpieces, includes a loading tray, masking stoppers, and an ejecting plate. The loading tray includes a loading surface, a matching surface opposite to the loading surface, and engaging portions extending up from the loading surface. Each workpiece is engaged with an engaging portion. The loading device defines guiding holes. Each guiding hole passes through an engaging portion and the matching surface and is in communication with the respective workpiece. Each masking stopper is configured to be inserted into a respective workpiece to mask an interior of the respective workpiece. The ejecting plate includes an assembling surface and ejecting rods extending up from the assembling surface. Each ejecting rod is configured to be guided into a respective guiding hole from the matching surface to eject out a respective masking stopper.
Abstract:
Virus-like particles (VLPs) of mammalian-hosted viruses, such as SARS-CoV and influenza viruses, have been recombinantly produced from Vero cells. The VLPs closely emulate the exterior of authentic virus particles and are highly immunogenic. They can elicit not only humoral but also cellular immune responses in a mammal. Compositions and methods related to the VLPs are also described.
Abstract:
An optical fiber assembly includes an optical fiber and a lens. The optical fiber defines a receiving groove in an end surface thereof. The lens is held in the receiving groove and includes a substrate and a Bragg grating. The Bragg grating includes a number of film layers stacked on the substrate.
Abstract:
A rolling machine includes a first clipping component, a second clipping component, a lifting component, and a holding assembly. The first clipping component has a first surface and a second surface opposite to the first surface. The second clipping component has a third surface configured to contact the first surface and a fourth surface opposite to the third surface. The lifting component is connected to the first clipping component and configured to drive the first clipping component to move back and forth. The holding assembly has a first and second holders configured to be symmetrically positioned on both sides of the first clipping component.