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Spin-lock preparation

WebPreparation of Nuclear Spin Singlet States Using Spin-Lock Induced Crossing Stephen J. DeVience* Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA Ronald L. Walsworth† Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138, USA; WebLesson 1: Spin locks ¶. The most basic primitive for locking is spinlock: static DEFINE_SPINLOCK (xxx_lock); unsigned long flags; spin_lock_irqsave (&xxx_lock, flags); ... critical section here .. spin_unlock_irqrestore (&xxx_lock, flags); The above is always safe. It will disable interrupts _locally_, but the spinlock itself will guarantee ...

Functional MRI Using Spin Lock Editing Preparation Pulses

WebAs preparation for dealing with both of those problems, protect the lists with a spinlock. The IRQ-unsafe version of the lock is used because IRQs are already disabled by local_lock_irqsave. spin_trylock is used in preparation for a time when local_lock could be used instead of lock_lock_irqsave. The per_cpu_pages still fits within the same ... WebJul 1, 2024 · The spinlock is a very simple single-holder lock. If a process attempts to acquire a spinlock and it is unavailable, the process will keep trying (spinning) until it can acquire the lock. This simplicity creates a small and fast lock. Like Mutex, there are two possible states in Spinlock: Locked or Unlocked. SpinLock in Linux Kernel Device Driver r4ryyyy https://mcreedsoutdoorservicesllc.com

R1ρ at high spin-lock frequency could be a complementary

WebSpin-lock preparation with a RARE (rapid acquisition with relaxation enhancement) readout (9 different spin-lock times and 7 different spin-lock frequencies (FSLs)) and multi-echo UTE (ultrashort TE) pulses were developed to quantify R1ρ and R2 … WebJul 1, 2016 · (a) The STD-SL preparation contains a pair of spin-lock pulses applied with opposite phases and separated by a 180° refocusing pulse. (b) The PSC-SL preparation … WebOct 22, 2013 · We introduce a broadly applicable technique to create nuclear spin singlet states in organic molecules and other many-atom systems. We employ a novel pulse sequence to produce a spin-lock induced crossing (SLIC) of the spin singlet and triplet energy levels, which enables triplet-singlet polarization transfer and singlet-state … r4osteokine

Preparation of Nuclear Spin Singlet States Using Spin-Lock …

Category:Balanced spin-lock preparation for B1 -insensitive and B0 …

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Spin-lock preparation

Balanced spin-lock preparation for B1 -insensitive and B0 …

WebMay 14, 2024 · spin_lock_bh prevents a softirq running on the same CPU as the caller while the lock is held. Since the userspace process can be preempted by a softirq, this prevents a deadlock from occurring if a softirq waits for a spin-lock that is already locked by the same CPU. – Ian Abbott May 14, 2024 at 16:35 WebSep 12, 2024 · We aimed to design a robust spin-lock (SL) preparation module that can be used in myocardial T 1ρ quantification at 3 T. We used the tan/tanh pulse to tip up and tip down the magnetization in the spin-lock preparation module (tan/tanh-SL).

Spin-lock preparation

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WebSep 12, 2024 · We aimed to design a robust spin-lock (SL) preparation module that can be used in myocardial T 1ρ quantification at 3 T. We used the tan/tanh pulse to tip up and … WebJan 15, 2024 · The cover image is based on the Research Article A robust adiabatic constant amplitude spin-lock preparation module for myocardial T1ρ quantification at 3 T by Yuxin ...

WebAug 1, 2012 · The magnetization after spin-lock preparation, for odd and even number of acquisitions respectively, can be obtained as: [5] [ 6] where M(t 0 ) is the initial magnetization, R ϕ (Φ) represents a ... WebSep 1, 2014 · A conventional fMRI acquisition is equivalent to using a spin-lock preparation with locking amplitude = 0, locking period ≈ T2*, acquisition TE = 0, when the relaxation …

WebWe aimed to design a robust spin-lock (SL) preparation module that can be used in myocardial T 1ρ quantification at 3 T. We used the tan/tanh pulse to tip up and tip down … WebNov 10, 2024 · A task needing a spinlock will “spin” (block) until the lock is granted. When multiple engines are spinning at the same time CPU usage can rise substantially. Spinlocks must be as fast and efficient as possible; In order to reduce contention a process which loops typically acquires and releases its spinlock each time through the loop.

WebSpin locks are a low-level synchronization mechanism suitable primarily for use on shared memory multiprocessors. When the calling thread requests a spin lock that is already held by another thread, the second thread spins in a loop to test if the lock has become available.

Web15 rows · Sep 28, 2024 · Spinlock is a locking system mechanism. It allows a thread to acquire it to simply wait in loop until the lock is available i.e. a thread waits in a loop or … r4syotoku_kessanWebApr 15, 2024 · Zero-field optically pumped magnetometers operating in the spin-exchange relaxation-free (SERF) regime have been extensively studied, and usually depend on zeroth-order parametric resonance to measure the magnetic field. However, the studies conducted on this topic lack thorough analyses and in-depth discussion of nonzero-order magnetic … r4shotoku_kessanWebDec 23, 2009 · Spinlocks don't cause preemption but wait in a loop ("spin") till the other core releases the lock. This prevents the thread from losing its quantum and continue as soon … r4typhoon14_kyuujo_tekiyou07.pdf bousai.go.jpWebThe method was used to detect BOLD activation in human visual cortex. Eight healthy young adults were imaged at 3 T using a single-slice, SL-prepped turbo spin echo (TSE) … r4soukaiWebThe patches 4/5 and 5/5 refine things we found during developing. v6: - patch 2/5 - use kfree_rcu to free 'wait' object, so don't need spin_lock introduced by v5. Then, no lock in TX path. - others - no change v5: - patch 2/5 - use owner with spin_lock to replace original third work to make code simpler. r4tyyyyWebNov 9, 2024 · In this study, we present a novel spin-lock preparation module (B-SL) that enables an almost full compensation of both types of inhomogeneities. Methods The new B-SL module contains a second 180° refocusing pulse to compensate each pulse in the … r4tyhjuWebDefinition of Spinlock in the Definitions.net dictionary. Meaning of Spinlock. What does Spinlock mean? Information and translations of Spinlock in the most comprehensive … r4uketsukenittei.pdf meti.go.jp