Conjectures on hidden Onsager algebra symmetries in interacting quantum lattice models

We conjecture the existence of hidden Onsager algebra symmetries in two interacting quantum integrable lattice models, i.e. spin-1/2 XXZ model and spin-1 Zamolodchikov-Fateev model at arbitrary root of unity values of the anisotropy. The conjectures relate the Onsager generators to the conserved charges obtained from semi-cyclic transfer matrices. The conjectures are motivated by two examples which are spin-1/2 XX model and spin-1 U(1)-invariant clock model. A novel construction of the semi-cyclic transfer matrices of spin-1 Zamolodchikov-Fateev model at arbitrary root of unity values of the anisotropy is carried out via the transfer matrix fusion procedure.

Bile canaliculi contract autonomously by releasing calcium into hepatocytes via mechanosensitive calcium channel

Bile canaliculi (BC) are the smallest vessels of the biliary tree. They are formed from the apical surfaces of adjoining hepatocytes, resulting in lumenal conduits for bile flow. Bile is propelled along the BC by hepatocyte contractions that arise from cyclic waves of apico-basal Ca2+, but the source and regulation of Ca2+ has been unclear. We report that BC contraction correlates with cyclic transfer of Ca2+ from BC lumen to apico-basal Ca2+ waves in adjacent hepatocytes, and does not correlate with endoplasmic reticulum Ca2+. BC contractility was triggered by ionophore A23187 and unaffected by Thapsigargin. The cycles of Ca2+ transfer could be blocked by the mechanosensitive calcium channel inhibitor GsMTx-4, resulting in cholestatic generation of BC-derived vesicles. The mechanosensitive calcium channel Piezo-1 is preferentially localized at BC membranes, and its hyper-activation by Yoda1 causes increased Ca2+ transfer and increased BC contractility. We propose that canaliculi achieve biomechanical homeostasis through the following feedback system: the pressure of accumulated bile is sensed by mechanosensitive channel, which transmit biliary calcium into adjacent hepatocytes for contraction of the BC lumen and propulsion of the bile.

Cyclic transfer in the derivation of Complete Parenthetical Clauses

The goal of this paper is to show that some parentheticals are indeed syntactic orphans (cf. Haegeman 1988) and that this intuition can be formalized using tools independently motivated in linguistic theory. We concentrate on new data regarding clitic realization in what are commonly called Reduced Parenthetical Clauses (RPCs). We show that these constructions with clitic differ of their reduced counterpart in many aspects; crucially, they behave as root domains. Thus, we argue that they are derived independently from the host clause (in a parallel workspace) and their linear interpolation occurs during the Spell-Out process, assuming a dynamic version of cyclic Transfer (cf. Chomsky 2001, Uriagereka 1999).

Blocking effects and non-clause bound reflexives in Mandarin and American English

A sub-set of languages with non-clause bound (NCB) reflexives exhibits Blocking effects. In these languages, a NCB reflexive is “blocked” from corefering with a higher subject when a lower subject does not agree with a higher subject for person. Accounting for Blocking effects has been challenging. Recently, researchers have posited a functional head that encodes point of view or sentience (e.g. Huang & Liu 2001; Tenny 2006; Chou 2012). However, these analyses do not account for all available data. Here, I offer a small modification to the most recent analysis of this type that accounts for available data by conforming to Chomsky’s cyclic transfer system (2007, 2008). I also provide exploratory data that suggests that (i) NCB reflexives exist in American English and (ii) they unexpectedly exhibit Blocking effects. Finally, I illustrate that the modified analysis for Mandarin also accounts for the distribution of NCB reflexives in American English.

The Influence of Main Pump with High-Voltage Variable Frequency Drives on Electric Motors Periodic Repair

The main objective of the work - to investigate the effect on the wear of high voltage electric motors of main pump units periodic switching on and off in cyclical pumping. Frequent starts motors in a cyclic pumping lead to accelerated wear of the mechanical parts of the motor due to the impact of dynamic loads at start-up, as well as winding insulation due to high inrush currents flow. As a result of accelerated depreciation may decrease residual life, overhaul period and service life of electric motors. The main factor affecting the service life of insulation motors are winding temperature, and as a consequence, the thermal aging of the insulation. The use of variable frequency drive can significantly reduce the cyclic transfer modes, or even eliminate them. The authors obtained analytical expressions for the evaluation of insulation deterioration at the start of the motor, which allow us to study the impact of the following factors: insulation class, the start time, break time at work, initial and nominal temperature, the temperature rise of the windings over the ambient temperature. The effect on the deterioration of the insulation cold start and hot conditions, as well as the percentage of the hottest start-ups in the total number of starts. Obtained expressions for the depreciation of isolation to determine the change timing of overhauls of high voltage electric main pump units. The developed method was approved by the example of the use of a variable frequency drive on the oil pumping stations construction section Leninsk-Nurlino trunk pipeline Nizhnevartovsk - Kurgan - Kuibyshev. The analysis showed that the installation of a variable frequency drive motors on three main pump units technological area of the number of starts to decline by 14%. The results can be used for pipeline transport of oil companies when planning the timing and costs of the current and capital repairs of high voltage electric motors main pump units.

Analysis of Automated G-Clip Machine Processes and Substation Process with Simulation by Using CAD Software

The paper presents the work of analysis of Automated G-clip Paperclip machine of using Solidworks Simulation and a comparison between results of each analysis in cutting process using design of experiment (DOE) and followed by design verification of simulating the cutting process after design changes. It emphasizes on the analysis of process and additional substation process to overcomes current machining problem. The current problem is occurred at the cutting station, which lead to poor quality product. There is two-design stage, which is preliminary of design of experiments conducted in order to fulfill the design validity and design verification. Application of longitudinal cyclic transfer system in feeding with pre-straightener substation is implied for comprehensive feeding of the wire with 1.3 mm diameter in 2 second. Forming dies with stepper motor controller give the precise positioning and repeatability of movement since good stepper motors have an accuracy between 3 5% of a step and this error is non-cumulative from one step to the next. By incorporating the new station in simulation procedure for this machine, it shows that the product quality is improved.