A stability control apparatus of excess fiber length in an optical cable loose tube is disposed between a loose tube extruder (5) and a loose tube tractor (6). The apparatus is formed in the following structural forms: an extrusion section (2) connected to the extruder (5), a traction section (4) connected to the tractor (6), and a transition section (3) connected to the extrusion section (2) and the traction section (4). The displacement of a loose tube formed by the extrusion section (2) is greater than the displacement of a loose tube formed by the traction section (4). The stability control apparatus of excess fiber length has a simple structure and provides a good excess length control effect.

To study the thermal stability of the “case” (hard layer) that forms on AISI-316L austenitic stainless steel by low-temperature carburization, we exposed carburized specimens to temperatures between 573 K and 648 K (300 and 375 °C) in air for 20.7 Ms (8 months). In spite of a colossal supersaturation with carbon, the austenite does not precipitate carbides. No carbon is lost to the ambient. Carbon diffuses deeper into the alloy, resulting in a flatter carbon-fraction–depth profile. This is realistically simulated assuming temperature- and concentration-dependent carbon diffusion. Exposing to 648 K for 20.7 Ms about doubles the average carbon depth. The near-surface carbon fraction decreases only moderately, particularly as the material appears to assimilate carbon from the ambient. Accordingly, the beneficial effects of low-temperature carburization on mechanical properties and corrosion resistance are retained throughout such long-term heat exposure, implying corresponding service life of low-temperature-carburized parts at temperatures below 650 K.

The cyclic behaviors of Hangzhou soft clay subjected to initial shear stress are investigated through undrained cyclic triaxial tests. It is observed that the cyclic strength of soft clay degrades fairly rapidly with the number of failure cycles when there is no initial shear stress. However, the cyclic strength degrades lesser when there is an initial shear stress. The cyclic strength decreases and the total cyclic strength increases as initial shear stress is increased. High rates of stiffness degradation and strain softening are evident in the test with initial shear stress lower than cyclic stress. However, no stiffness degradation or strain softening can be observed in the test with initial shear stress higher than cyclic stress. In a semi-log scale, the relationship between degradation index and cyclic number shows a strong non-linearity. This relationship has been synthesized in the form of an empirical equation by introducing a normalized cyclic stress parameter. The empirical equation, together with the mean axial strain equation is further incorporated into the modified Iwan's model to simulate the stress-strain relationship of soft clay subjected to initial shear stress. A comparison between experimental and predicted stress-strain curves shows a good agreement.

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a user service description (USD) message. When a frequency indicated in the USD message is not a current frequency, the apparatus determines that a system information message is received, determines that the frequency indicated in the USD message is included in the system information message, determines that the frequency is a neighboring cell frequency, sets a priority of the frequency to a highest priority, and measures a signal strength of the frequency when the frequency is included in the system information message, performs a cell reselection determination procedure based on the signal strength of the frequency, performs cell reselection to the neighboring cell based on a result of the cell reselection determination procedure, and acquires the multicast service in the neighboring cell on the frequency.

The present invention provides amplification-based methods for detection of genotype, mutations, and/or aneuploidy. These methods have broad applicability, but are particularly well-suited to detecting and quantifying target nucleic acids in free fetal DNA present in a maternal bodily fluid sample.

A method, an apparatus, and a computer program product for wireless communication are provided in which 1x CSFB for communication of SMS messages in an LTE environment may be avoided. An IWS may receive a paging request message from a MSC, wherein the paging request message includes a first SMS service option indicating communication of a SMS message using a first RAT. The IWS may avoid an ESR procedure by analyzing the first SMS service option in the paging request message. Further the IWS may establish a common channel connection between the IWS and a target UE using a second RAT, wherein the first RAT and the second RAT are different.

Disclosed are a method and device for creating indexes for mass data records. The method includes: acquiring the current system time when a new write file request message is received; generating index keywords for a file according to the current system time and the file identifier of the file requested to be written by the write file request message; and creating an association relationship between the index keywords and the file. By way of the present invention, quick location for mass data storage can be realized.

Methods and apparatuses are provided that include counting devices for broadcast data services. The devices can be counted based on registrations received from the devices. This registration count can additionally or alternatively be used to determine whether further counting is desired. In addition, base stations can transmit counting requests to the devices using a paging message or other message such that idle mode devices can receive the counting requests. The idle mode devices can respond to the requests or send autonomous counting report by switching to an active mode for the purpose of responding or another purpose.

Apparatus and methods for controlling antenna down tilt in a mixed coordinated/non-coordinated network include receiving one or more input signals defining a waveform to be transmitted, for determining a tilt angle state to be applied to the antenna based on the one or more input signals, and for transmitting a tilt control signal if the determined tilt angle state differs from a current tilt angle state associated with the antenna.