摘要:
A connector for a spinal implant system, the connector comprising a body portion and an extension portion, the body portion being adapted to couple thereto at least a first bone screw for installation in a vertebra, the body portion further being adapted for coupling at least a first elongate member thereto, the extension portion extending from the body portion, the extension portion being adapted for coupling thereto at least a first intervertebral device for installation in a spinal disc space. Preferably at least part of the extension portion is bendable.
摘要:
A surgical distraction device is provided for applying extending or tensioning force non-invasively to a patient's skeleton or to an implant which comprises anchoring means for attaching first and second components of the device to a bone or to adjoining bones, said components being connected by a linkage of an extendible length, a magnet connected to the linkage via a reduction gearbox and actuating means located externally of the patient for generating a moving or varying electromagnetic field, thereby causing the magnet to rotate and the linkage to be extended.
摘要:
Amongst other aspects this invention provides a wheeled luggage case having a luggage receptacle, the receptacle having two opposing major walls and having end walls forming a luggage compartment, whereof a major wall of the receptacle is adapted to serve as a bottom wall that faces the ground during a wheeled mode of travel of the luggage case, wherein said luggage case further comprises:- (i) a plurality of support wheels located at one end of the bottom wall; (ii) a retractable steering wheel assembly, located on the bottom wall, distanced, in use, from the support wheels, said steering wheel assembly having at least one wheel and being moveable between an active position at which the steering wheel assembly extends below the bottom wall of the luggage receptacle or an inactive position at which the steering wheel assembly is retracted; and (iii) a handle located at one end of the luggage receptacle for steering, pushing and/or pulling purposes; wherein the luggage case is configured to be selectively deployable in a first mode of wheeled travel with the retractable steering wheel assembly and support wheels in ground engagement whereby the said bottom wall is facing the ground or in a second mode of wheeled travel with an alternative ground-engaging wheel arrangement whereby an end wall is facing the ground.
摘要:
The present invention concerns a SAPO-34 molecular sieve and method for preparing the same, whose chemical composition in the anhydrous state is expressed as: mSDA·(Si x Al y P z )O 2 , wherein m is from 0.08 to 0.3, and x is from 0.01 to 0.60, and y is from 0.2 to 0.60, and z is from 0.2 to 0.60, and x + y + z =1. There is the template agent SDA in micropores of the molecular sieve. SDA is organic amine with the structural formula as (CH 3 ) 2 NRN(CH 3 ) 2 , wherein R is saturated straight-chain or branch-chain alkylene group with the number of carbon atoms at a range from 2 to 5. There is a slight Si enrichment phenomenon on the crystal surface of the molecular sieve crystal, and the ratio of the surface Si content to the bulk Si content of the crystal ranges from 1.50 to 1.01. Said SAPO-34 molecular sieve after calcined at a temperature range from 400 to 700 °C in air can be used as a gas adsorbent and catalysts for acid-catalyzed reaction or oxygenate to olefin reaction.
摘要翻译:本发明涉及一种SAPO-34分子筛及其制备方法,其无水状态的化学成分表示为:mSDA·(Si x Al y P z)O 2,其中m为0.08〜0.3,以及 x为0.01〜0.60,y为0.2〜0.60,z为0.2〜0.60,x + y + z = 1。 在分子筛的微孔中存在模板剂SDA。 SDA是结构式为(CH 3)2 NRN(CH 3)2的有机胺,其中R是碳原子数为2〜5的饱和直链或支链亚烷基。存在 在分子筛晶体的晶体表面上存在轻微的Si富集现象,并且表面Si含量与晶体的Si含量之比在1.50至1.01之间。 在空气中在400-700℃的温度范围煅烧后的所述SAPO-34分子筛可用作气体吸附剂和用于酸催化反应或含氧化合物与烯烃反应的催化剂。
摘要:
There is provided an electric motorized skateboard. The skateboard includes a skateboard deck and wheels. The skateboard includes a first actuator with a footpad and a force sensor. The footpad is generally disposed at a deck top surface. The footpad and the force sensor are cooperatively sized and configured to translate force applied to the footpad to the force sensor. The force sensor is sized and configured to output a sensed signal in response to application of force upon the force sensor. The skateboard includes a controller in electrical communication with the force sensor. The controller receives the sensed signal and generates a motor input signal in response to the sensed signal. The skateboard includes an electric motor in mechanical communication with at least one of the wheels. The motor has a variable electric motor output in response to a value of a motor input signal.
摘要:
The application provides a catalyst for producing ethylene and propylene from methanol and/or dimethyl ether, and a preparation and application thereof. In the present application, a molecular sieve catalyst co-modified by rare earth metals and silanization is utilized. First, the material containing methanol and/or dimethyl ether reacts on the catalyst to generate hydrocarbons. The hydrocarbons are separated into a C 1 -C 5 component and a C 6 + component. Then the C 6 + component is recycled to the feeding port and fed into the reactor after mixing with methanol and/or dimethyl ether. The above steps are repeated, to finally generate C 1 -C 5 products, in which the selectivity for ethylene and propylene can reach more than 90 wt% in the C 1 -C 5 component, so that the maximal yield can be achieved in the production of ethylene and propylene from methanol and/or dimethyl ether.
摘要:
A processor obtains input of a logistically attainable end tidal partial pressure of gas X (PetX[i]T) for one or more respective breaths [i] and input of a prospective computation of an amount of gas X required to be inspired by the subject in an inspired gas to target the PetX[i]T for a respective breath [i] using inputs required to utilize a mass balance relationship, wherein one or more values required to control the amount of gas X in a volume of gas delivered to the subject is output from an expression of the mass balance relationship. The mass balance relationship is expressed in a form which takes into account (prospectively), for a respective breath [i], the amount of gas X in the capillaries surrounding the alveoli and the amount of gas X in the alveoli, optionally based on a model of the lung which accounts for those sub-volumes of gas in the lung which substantially affect the alveolar gas X concentration affecting mass transfer.