70 results about "Spin lock" patented technology

An architecture that achieves high speed performance in a network protocol handler combines parallelism and pipelining in multiple programmable processors, along with specialized front-end logic at the network interface that handles time critical protocol operations. The multiple processors are interconnected via a high-speed interconnect, using a multi-token counter protocol for data transmission between processors and between processors and memory. Each processor's memory is globally accessible by other processors, and memory synchronization operations are used to obviate the need for “spin-locks”. Each processor has multiple threads, each capable of fully executing programs. Each processor contains embedded dynamic random access memory (DRAM). Threads within a processor are assigned the processing of various protocol functions in a parallel / pipelined fashion. Data frame processing is done by one or more of the threads to identify related frames. Related frames are dispatched to the same thread so as to minimize the overhead associated with memory accesses and general protocol processing. The high-speed protocol handler may also provide built-in monitors for examining the activity of its hardware resources and reallocating the workload to the resources that are not heavily used, thus balancing the resource utilization and increasing the workload throughput.

Methods and apparatus for converting a lightweight monitor to a heavyweight monitor are disclosed. According to one aspect of the present invention, a computer-implemented method for converting a lightweight monitor to a heavyweight monitor when an object that is owned by a second thread is unavailable to a first thread includes creating a new heavyweight monitor and setting the ownership of the new heavyweight monitor to the second thread. The first thread then enters the newly created heavyweight monitor without being forced to spin lock until the object is released by the second object.

The invention discloses a multipurpose broad-gauge container platform wagon. An under frame of the multipurpose broad-gauge container platform wagon comprises a centre sill, side beams, sleeper beams, end beams, side crossbeams, a middle crossbeam and longitudinal beams. Fixed anti-theft container door shielding devices are arranged on the end beams of the under frame or movable anti-theft container door shielding devices are arranged on the side crossbeams of the under frame; 8 to 12 sets of extension-type spin locks are arranged at joints of the end beams, the side crossbeams, the middle crossbeam and the side beams of the under frame; and each extension-type spin lock mainly comprises a lock head, a lock body and a handle. The container platform wagon has the characteristics of loading conditions meeting requirements, compact and secure structure, long service life and application to running on lines with a 1,676 mm gauge. The invention also provides the container platform wagon, which can conveniently and securely fix containers of different sizes and prevent anti-theft devices for container doors from being randomly opened.

A ventable spin lock container comprising a container member having a bottom, an upper annular rim and a substantially continuous side wall extending from the bottom and terminating at the rim, the bottom and side wall defining a first member cavity, the rim including a first member skirt having a plurality of first threads, the plurality of first threads having substantially equidistant engagement points; and a closure member having a peripheral sealing portion, the sealing portion including a skirt having a plurality of second threads adapted and positioned to cooperate with the first threads, wherein sealable engagement of the container member and closure member is effectuated when the first and second threads are in a first position, and wherein a venting passage from the container member cavity to the container surroundings is provided when the first and second threads are in a second position.

The invention discloses a scheduling method and device for a first in first out (FIFO) queue. According to the scheme, no spin lock is used, a current head count H and a current tail count T of the FIFO queue are read through atomic operation, and whether other cores execute enqueuing or dequeuing operation and count operation of an actual enqueuing or dequeuing count is judged in an atomic comparing exchange function. According to the scheduling method and device for the first in first out queue, the range needing a protection code segment of multi-core mutual exclusion operation is very small, expenditure for multi-core locking and unlocking is avoided, and the scheduling efficiency of multi-core equipment for the FIFO queue can be improved.

Methods and apparatus for converting a lightweight monitor to a heavyweight monitor are disclosed. According to one aspect of the present invention, a computer-implemented method for converting a lightweight monitor to a heavyweight monitor when an object that is owned by a second thread is unavailable to a first thread includes creating a new heavyweight monitor and setting the ownership of the new heavyweight monitor to the second thread. The first thread then enters the newly created heavyweight monitor without being forced to spin lock until the object is released by the second object.

The invention discloses a method for concurrently processing a join in multi-core systems. The method is used for effectively controlling a join life cycle and join state conversion through the comprehensive use of a fine-grained read-write lock, a spin lock, a join reference counter and a memory barrier so that the multi-core systems provide the integrity and consistency of data when sharing thesame join, and the correctness and the performance of the communication and control process of multi-core data are ensured.

The invention discloses a clamp for disassembling a spin lock for a container. The clamp comprises a clamp body, a turning device and a clamping device, wherein the turning device and the clamping device are fixedly installed on the clamp body; the turning device is composed of a servo motor, a transmission mechanism and a torsion head; the servo motor is fixed to the clamp body and is in transmission connection with the torsion head through the transmission mechanism; the clamping device is composed of a cylinder and two clamping jaws; the cylinder is fixed to the clamp body; the two clamping jaws are horizontally arranged just below the torsion head; and on-off of the clamping jaws is controlled through the cylinder. The clamp captures the spin lock by utilizing the clamping jaws, disassembles the spin lock by utilizing the torsion head, can effectively carry out automation control and is safer and more efficient.

The spiral lock comprises a body and a core within the body, featuring on the spiral key hole in the core and the spirally arranged hoodle holes on the said core, with the bottom of the spiral key hole connected with the hoodle holes which correspond to the holes on the body. A key, with its handle equipped with spiral teeth matched with the spiral key hole, is meant to match with the said spiral lock. The invention adds security with the effects of anti-poking and anti-vibration.

The invention discloses a quantitative fast frequency-locked magnetic resonance imaging method. Data acquisition of magnetic resonance imaging signals corresponding to different spin lock pulses in acontinuous scanning period is completed, and the data fills the same position in K space, so that T1rhomapping images finally obtained corresponding to the different spin lock pulses have high matching degree and can be used for judging tissue fibrosis indexes and diagnosing a tissue edema state; the effects of arrhythmia, uneven breathing and the like on the quality of the T1rhomapping images areminimized, and physical state and ability to suspend breathing and the like of a tester are not strictly required, so that scanning time required to obtain the T1rhomapping images is greatly shortened and the research and promotion of a T1rhomapping imaging technology in the field of clinical medical detection is further developed; in addition, the spin lock pulses alternate in positive and negative phases in adjacent RF excitation pulses, thereby effectively reducing artifacts due to magnetic field uniformity.

Parahydrogen Induced Polarization was employed to prepare nuclear singlet state between methylene and methyl protons in propane gas. Low-field MRI preserves this singlet state with much longer TS=4.7±0.5 s. Spin-Lock Induced Crossing (SLIC) transforms singlet state in observable nuclear magnetization suitable for MRI with sub-millimeter and sub-second spatial and temporal resolution respectively with signal enhancement>10,000 times. Long-lived spin states created in hyperpolarized propane-d6 gas can be detected directly at 0.0475 T. This long lifetime and non-toxic nature of propane gas could be useful for bio-imaging applications including potentially pulmonary low-field MRI. The feasibility of high-resolution low-field 2D gradient-echo MRI was demonstrated with 0.88×0.88 mm2 spatial and ˜0.7 s temporal resolution respectively at 0.0475 T. Propane is a non-toxic gas, and therefore, these results enable low-cost high-resolution high-speed MRI of gases for imaging of lungs.

An embodiment of the present invention provides a spin lock acquisition method and apparatus and relates to the technical field of computers. The performance loss of a system caused by the fact that a plurality of tasks competes for shared resources can be reduced, thereby improving the system performance. The method can comprise: receiving a task that requests for acquiring a spin lock; storing the task in a queuing queue; according to a position of the task in the queuing queue, determining spin waiting time of the task so that the task tries to acquire the spin lock at the end of the spin waiting time, wherein the position of the task in the queuing queue is used for characterizing a sequence of the task stored into the queuing queue and the position of task that is firstly stored into the queuing queue is in front of the position of the task that is later stored into the queuing queue.

The invention relates to a detecting system and method for spin locks of containers. A visual field of a collecting system covers four corners of the container bottoms of the containers with a plurality of sizes, an IO module collects video data output by the collecting system, and analysis is carried out to generate image data; if a detecting module outputs an alarm signal, the IO module outputsthe alarm signal of the detecting module to a gantry crane control system; and the detecting module reads the image data analyzed by the IO module after receiving a crane signal, whether the spin locks exist in the container bottoms of the containers or not is judged, and if so, the alarm signal is output. According to the detecting system and method for the spin locks of the containers, machine visual technology is used, automatic detecting, recognizing and tracking of the spin locks not removed of the container bottoms of the containers are realized, and the working efficiency is improved. Adetecting result is connected to a hanger control circuit, a hanger is controlled to stop working under the abnormal working conditions, and accidents are prevented. A crane state and container typescan be automatically recognized, the change of a gantry control device is reduced, and the universality is good.

The present invention is directed to a method and system of tissue or background suppression for the acquisition of image data from blood flow or tissue perfusion. Background suppression with minimal effects upon inflowing spins is achieved through a series of spin locking low level RF pulses that cause adiabatic demagnetization of tissue with a relaxation time T1-rho that is intermediate between T1 and T2 relaxation times. In this regard, the effective transverse magnetization of static tissue resulting from the application of a series of low level RF pulses is reduced and, with the spin locking, longitudinal magnetization regrowth is minimized. As such, inflowing spins to an imaging volume may be directly imaged with significant background tissue suppression. The present invention is particularly applicable to time-of-flight MRA and MR perfusion imaging.

The invention relates to the field of internet technology, and particularly to a method and a device of accessing restriction on a resource and terminal equipment. According to the method, simultaneous accessing of a plurality of threads to the resource is restricted through a defined spin lock, and the spin lock includes a lock counting variable, locking functions and unlocking functions. A current thread calls a specified function in the lock functions to detect whether the lock counting variable is a preset initial value, and if the lock counting variable is the preset initial value, the lock counting variable is configured to a preset threshold value to enable the current thread to occupy the spin lock to access the resource. After resource accessing of the current thread is completed,the unlocking functions are called to configure the lock counting variable from the preset threshold value to the preset initial value to enable the other threads to call the spin lock. In the scheme, the thread reads and writes the lock counting variable through calling the system functions without using system resources, thus the system resources are saved, and running efficiency of a system isimproved.

The invention discloses a device and a method for hoisting a container on a railway flatcar with F-TR locks. The device includes a spin lock force measuring module, a data acquisition module, a wireless or wired communication module, a PLC control module, a frequency converter, a lifting motor, and a lifting mechanism. The spin lock force measuring module includes force sensors respectively installed on four spin locks of a container spreader. The data acquisition module reads the force value of each spin lock in the container lifting process. The wireless or wired communication module sends data acquired by the data acquisition module to the PLC control module in real time. The PLC control module processes detection data. The frequency converter receives a control command from the PLC control module, and outputs a speed control frequency to the lifting motor according to the control command. The lifting motor controls the action of the lifting mechanism according to the speed control frequency transmitted by the frequency converter. The action of a railway gantry crane is controlled intelligently according to the force detection results of the spin locks. A derailment accident caused by the fact that a corner piece at the bottom of a container is hooked to an F-TR lock is avoided.

A variable flip angle (VFA) MRI (magnetic resonance imaging) spin echo train is designed and / or implemented. For example, a target train of detectable spin-locked NMR (nuclear magnetic resonance) echo signal amplitudes may be defined and a corresponding designed sequence of variable amplitude (i.e., variable NMR nutation angle) RF refocusing pulses may be determined for generating that target train of spin echoes in an MRI sequence (e.g., used for acquiring MRI data for a diagnostic imaging scan or the like). Such a designed VFA sequence may be output for study and / or use by an MRI system sequence controller.

The invention discloses a full-automatic spin lock for a container. The full-automatic spin lock comprises a lock shaft, a lock base, a torsional spring, a lock nut, a connecting pin, a limit pin, an emergency release pin, a round pin, a gasket, a spring and an end cover. The lock head of the lock shaft has an inclined double curved surface structure, wherein a lock rod of the lock shaft passes through the lock base and the torsional spring, the lower end of the lock rod is fixed by the lock nut and the connecting pin is adopted for preventing the lock nut from loosening. The torsional spring is sleeved on the lock rod and positioned in a cavity in the middle of the lock base; and the torsional spring is formed by integrally vulcanizing an inner ring and an outer ring by a rubber layer. The emergency release pin is positioned in a groove on the side face of the lock base, and the tail end of the emergency release pin is inserted into the outer ring of the torsional spring. The full-automatic spin lock for the container can realize automatic locking and automatic unlocking of the container, is provided with a manual unlocking device under the abnormal conditions, is also provided with an indicator so as to facilitate observing the locking state of the spin lock, and improves the loading and unloading efficiency and the transportation safety of the container.

The invention provides a method for processing an IO request in a storage system, and the method comprises the steps: determining a storage volume to which the IO request belongs when receiving the IOrequest; Judging whether the storage volume has other IO requests being processed or not; If yes, hanging the IO request to a corresponding linked list; And processing the IO requests after the processing of the other IO requests is finished. IO requests belonging to the same storage volume are executed according to a time sequence; Parallel processing of multiple IO requests of the same volume is avoided, the problem that a spin lock is needed when multiple threads process the IO requests of the same volume is solved, the situation that multiple threads write data to the same storage volumeis avoided, locking and interlocking are not needed among the threads, and the IO request processing efficiency of the threads in the storage system is improved. The invention further provides a system for processing the IO requests in the storage system, a computer readable storage medium and storage equipment which have the above beneficial effects.

Methods and systems for Nuclear Magnetic Resonance (NMR) spectra of samples having unresolved peaks are described. The methods and systems allow for the creation nuclear spin singlet states in nearly-equivalent spin pairs, for example, using continuous spin-locking with a nutation frequency matched to the coupling strength between spins. The invention relates generally to the field Nuclear Magnetic Resonance (NMR). Nuclear magnetic resonance (NMR) spectroscopy can be used as a tool for determining the chemical structure and / or geometry of a molecule in a sample. In many samples, however, resonance frequencies of different nuclei fully or partially overlap, which makes chemical identification of molecule(s) in a sample difficult or impossible.

A method of monitoring glucose transport and / or metabolism in a tissue or an organ of a subject using spin-locking magnetic resonance (MR) includes acquiring pre-glucose MR data by executing a pre-glucose chemical exchange spin-lock (CESL) pulse sequence a number of times each including applying pre-glucose chemical exchange spin-lock pulse sequence irradiation to the tissue or the organ, administering glucose to the subject, acquiring post-glucose MR data by executing a post-glucose chemical exchange spin-lock (CESL) pulse sequence a number of times each including applying post-glucose chemical exchange spin-lock (CESL) pulse sequence irradiation to the tissue or the organ, and using the pre-glucose MR data and the post-glucose MR data to generate a measure of glucose transport, glucose metabolism or both glucose transport and glucose metabolism in the tissue or the organ.

The invention discloses a container lifting device for an interchangeable car body box and a transport vehicle. The container lifting device comprises mounting cross beams, lifting supports and spin locks; one end of each mounting cross beam is connected with a frame main beam of the transport vehicle; each lifting support comprises a fixed base and a movable base; the fixed bases are connected to the other ends of the mounting cross beams; the movable bases are arranged in the fixed bases in a sliding mode in the vertical direction; the movable bases are used for being connected with base angle parts of a container to drive the container to ascend or descend; the spin locks are rotatably arranged on the tops of the movable bases so as to achieve locking and unlocking between the movable bases and the base angle parts. The container lifting device for the interchangeable car body box achieves the aim of loading and unloading of the container on the transport vehicle, reduces the waiting time for loading and unloading of the container, improves the use rate of the transport vehicle, and further improves the efficiency of logistics transportation.

A magnetic resonance (MR) system 10 includes a scan controller 20 which generates a plurality of like MR pulse sequences TR. Each pulse sequence includes a plurality (m) of RF excitation pulses EXC which selectively excite a nuclear species, a plurality of different spin lock pulses SL1, SL2, SLm before each RF excitation pulse EXC, a plurality of data readout intervals RE1, RE2,..., REm. A SAR unit 42 determines a SAR value corresponding to the pulse sequence and determines a shortest repetition time for the pulse sequence based on the SAR value. A plurality of pulse sequences TR are applied, each corresponds to a single phase encode. The pulse sequences are identical except for the phase encode gradients such that a plurality of T1[rho]-weighted images of the examination region are generated. A T1[rho] processor 40 analyzes the T1[rho]-weighted images and generates a T1[rho] map of the examination region according to the analysis.

A system acquires MR image data of a portion of patient anatomy associated with spin lattice relaxation time in a rotating frame using an RF (Radio Frequency) signal generator and a magnetic field gradient generator. The RF (Radio Frequency) signal generator generates RF excitation pulses in anatomy and enables subsequent acquisition of associated RF echo data. The magnetic field gradient generator generates anatomical volume select magnetic field gradients for phase encoding and readout RF data acquisition in a three dimensional (3D) anatomical volume. The RF signal generator and the gradient generator use in order, a saturation pulse, a T1 spin lattice relaxation rotating frame preparation pulse sequence and a spoiler gradient, in acquiring image data of the 3D volume showing luminance contrast associated with T1 spin lattice relaxation in a rotating frame.

A method for managing task execution in a multi-core processor includes employing a spinlock to effect a dynamically enforceable mutual exclusion constraint and employing a multi-processor priority ceiling protocol to effect the dynamically enforceable mutual exclusion constraint to synchronize a plurality of tasks executing in the first and second processing cores of the multi-core processor.

MRI techniques provide robust imaging in the presence of inhomogeneity in the B1 (RF) and / or B0 magnetic fields. The techniques include using a magnetization prep sequence that includes an adiabatic half passage (AHP) followed by a spin-lock pulse, followed by a reverse AHP, after which a data acquisition sequence can be applied. The AHP and reverse AHP can have amplitude and frequency modulated to sweep through a region of frequency space. The RF amplitude of the AHP and reverse AHP can be designed to be equal to the spin-lock amplitude. Quantification of a magnetization relaxation parameter(e.g., T1rho) can use a modified relaxation model that accounts for relaxation effects during the reverse AHP. A dual-acquisition technique in which the reverse AHP of the second magnetization prep sequence has opposite frequency modulation to the reverse AHP of the first magnetization prep sequence can also be used.