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Dividing a system into almost unidirectional blocks [chapter]

Wataru Mayeda
1981 Lecture Notes in Computer Science  
Unfortunatley , most of systems can not be divided into unidirectional blocks.  ...  Howeveg it is possible to divide a system into almost unidirectional blocks B 1 B2...Bk...B m such that the existence of failure in B k will interfare only slightly to the performance of preceding 51ocks  ...  In other wozd$ value Tkj of terminal transmission from a vertex in B k to a vertex in B. should be 0 3 (or sufficiently small).Hence we need to divide graph G into unidirectional blocks (or almost unidirectional  ... 
doi:10.1007/3-540-10704-5_1 fatcat:aoasz5y3cjh4bncjuwdfantrxq

GSE spectra in uni-directional quantum systems [article]

Maram Akila, Boris Gutkin
2018 arXiv   pre-print
As an application, we provide a class of quantum graphs with only C_4 rotational symmetry possessing GSE spectral statistics.  ...  However, if an additional symmetry is present, the spectrum can be split into independent sectors which statistics depend on the type of the group's irreducible representation.  ...  Sieber and A. Winter for useful discussions.  ... 
arXiv:1811.09860v1 fatcat:zcbx5cxh3bd75d7msxj7nlh6xy

Page 4912 of Mathematical Reviews Vol. , Issue 94h [page]

1994 Mathematical Reviews  
Since each codeword of codes in both classes can be divided into a data part and a parity check part, the proposed codes have the merit of easily mapping messages into codewords.” 94h:94023 94B60 Saitoh  ...  For example, from this construction, a 72-input-bit encoder of the triple unidirectional 8-bit-byte error-correcting and four-fold unidirectional 8-bit-byte error-detecting code with a length of 112 bits  ... 

GSE spectra in uni-directional quantum systems

Maram Akila, Boris Gutkin
2019 Journal of Physics A: Mathematical and Theoretical  
As an application, we provide a class of quantum graphs with only C 4 rotational symmetry possessing GSE spectral statistics.  ...  However, if an additional symmetry is present, the spectrum can be split into independent sectors which statistics depend on the type of the group's irreducible representation.  ...  Sieber and A. Winter for useful discussions. References  ... 
doi:10.1088/1751-8121/ab1956 fatcat:bve5s2lxizda5klw34duaq7squ

Thermodynamic uncertainty relation for first-passage times on Markov chains [article]

Arnab Pal, Shlomi Reuveni, Saar Rahav
2021 arXiv   pre-print
As every bidirectional transition can also be seen as a pair of separate unidirectional ones, our approach typically yields an ensemble of TURs.  ...  The TUR utilizes the entropy production coming from bidirectional transitions, and the net flux coming from unidirectional transitions, to provide a lower bound on FPT fluctuations.  ...  To understand the denominator of Eq. (4) we first note that transitions in our model can be divided into two sets.  ... 
arXiv:2103.16578v1 fatcat:jbnrzwz5mnd7pdkhsuhi46xa54

Discriminative compartimental CSs in shuttlebox avoidance acquisition

P. E. Freedman, B. Steven Callahan
1968 Psychonomic Science  
The factors which differentiate unidirectional and shuttle situations were discussed in light of these results.  ...  The box was divided into two equal compartments by a sheetmetal wan which had a 4-1/2 in. high and 4 in. wide opening at floor level. No door was used.  ...  The entire system was automatically controlled by a solid state program and avoidances were recorded on a printout counter. The shuttlebox was in a dark room separated from the programming equipment.  ... 
doi:10.3758/bf03331341 fatcat:54z54ip5uvhbtfw2nck5d2vpvq

Comparison of Modern Drinking Water Network Maintenance Methods: Evaluation of Removed Deposits in the Form of Total Suspended Solids (TSS)

Petra Jurek Vidlářová, Silvie Heviánková
2021 International Journal of Environmental Research and Public Health  
The results point at the following efficiency the Comprex® method was the most efficient in removing TSS, Ice Pigging® was the next and unidirectional flushing removed a negligible amount of TSS compared  ...  The tested methods were unidirectional flushing, Comprex®, and Ice Pigging®.  ...  As the results obtained from unidirectional flushing showed a dependence on the pipe material and sufficient data were obtained, this method of cleaning is in Table 3 divided into two sections UF of  ... 
doi:10.3390/ijerph18084311 pmid:33921692 fatcat:4ilyvy444jeezojwdxrt5mrgry

Novel unidirectional porous hydroxyapatite used as a bone substitute for open wedge high tibial osteotomy

Kenta Uemura, Akihiro Kanamori, Katsuya Aoto, Masashi Yamazaki, Masataka Sakane
2014 Journal of materials science. Materials in medicine  
Purpose: The purpose of this study was to clinically and radiologically evaluate the availability, osteoconductivity, and resorption of a novel unidirectional porous hydroxyapatite (UDPHAp) used as an  ...  Results: Neither gross displacement nor collapse of the UDPHAp block graft was observed within 12 months after surgery.  ...  The CT image data were divided into three areas (UDPHAp block, UDPHAp granules and hinged-cancellous bone) and CT attenuation values (in Hounsfield units: HU) of each area were analysed using the imaging  ... 
doi:10.1007/s10856-014-5266-5 pmid:24997164 pmcid:PMC4198809 fatcat:afdzimcu75f4pirm76vhvhx4pu

Experimental Evaluation of Ad Hoc Testbed in Indoor Scenarios

Fei Ye, Zhi Zhou, Zhisheng Niu
2006 2006 Asia-Pacific Conference on Communications  
Our observation indicates that unidirectional links and unstable links are two cutthroats of ad hoc networks in indoor scenarios.  ...  The total process is divide into 3 phases: detection of link failure, buffering and route discovery locally, local retransmission.  ...  The total process could be divided into 4 phases: link failure detection at the upstream node, sending back RERR, buffering and route discovery at source node, retransmission at source node.  ... 
doi:10.1109/apcc.2006.255795 fatcat:4mfltoakpbcwxbkyxpqaexzi3m

EMOTA: an event-driven MOS timing simulator for VLSI circuits

W.-Z. Shen, S.-J. Jou, Y.-S. Tao
1990 IEE Proceedings G Circuits Devices and Systems  
A novel new event-driven MOS timing simulator for VLSI circuits, EMOTA, is presented.  ...  The fast performance is due to the result of mixing the new derived event-driven algorithm and its associated time-wheel control mechanism, together with the unidirectional nonlinear Gauss-Seidel relaxation  ...  into a set of loosely coupled blocks.  ... 
doi:10.1049/ip-g-2.1990.0043 fatcat:ok7i3nanrjgwpdwcek5mwu7dhe

Analysis of Multi-AGVs Management System and Key Issues: A Review

Wenhao Lu, Shuai Guo, Tao Song, Yuwen Li
2022 CMES - Computer Modeling in Engineering & Sciences  
Secondly, according to their utility, the multi-AGVs management problems are divided into three categories: 1) cost reduction, resource-oriented, 2) efficiency improvement, problem-oriented, 3) personalized  ...  The multi-AGVs management problem is a multi-objective, multi-constraint combinatorial optimization problem, which depends on the types of application scenarios.  ...  The track layout of the system was divided into two categories: unidirectional-guide-path and bidirectional-guide-path [18] .  ... 
doi:10.32604/cmes.2022.019770 fatcat:afzwkjdsyvd4hbrzv6rdazrlaa

Experimental Demonstration of Concealed AV Conduction in the Human Heart

R. LANGENDORF, A. PICK, A. EDELIST, L. N. KATZ
1965 Circulation  
S-A indicates impulse propagation from and to the S-A node; A-V indicates complete or partial impulse propagation in the A-V junction (which is divided by a horizontal line into an upper and lower portion  ...  Proximal to this unidirectional block, there is a pathway common to, and used by, both antegrade and retrograde impulses.  ...  an area of unidirectional block to one of supernormal conduction.  ... 
doi:10.1161/01.cir.32.3.386 pmid:5830603 fatcat:zwpvaj7yubg2vociw4udtilh7m

Phototactic Algae-Driven Unidirectional Transport of Submillimeter-Sized Cargo in a Microchannel

Moeto Nagai, Takahiro Hirano, Takayuki Shibata
2019 Micromachines  
All components were integrated to demonstrate the unidirectional actuation of a block by Volvox. We discuss the dynamics of the mechanical motions.  ...  We show the fabrication of a guide structure, cargo, and light irradiation platform for a unidirectional actuation.  ...  Integration of this block actuation mechanism into the system will lead to broaden the application fields.  ... 
doi:10.3390/mi10020130 pmid:30781488 pmcid:PMC6412834 fatcat:qh7lfrfflbhyjbcish3tkogkki

Unidirectional surface plasmon-polariton excitation by a compact slot partially filled with dielectric

Dongdong Li, Dao Hua Zhang, Changchun Yan, Tao Li, Yueke Wang, Zhengji Xu, Jun Wang, Fei Qin
2013 Optics Express  
The structure can be divided into two functional blocks, as shown in Fig. 1(b) .  ...  Such a unidirectional SPP generator could be realized with the assistance of current nanofabrication systems such as electron beam lithography (EBL) and focused ion beam (FIB).  ... 
doi:10.1364/oe.21.005949 pmid:23482163 fatcat:ykscdygltbfixnptpe6akzqkcu

Page 427 of Mathematical Reviews Vol. , Issue 84a [page]

1984 Mathematical Reviews  
Due to the existence of this lattice the whole space is divided into a finite set of n-dimensional rectangular parallelepipeds whose edges are parallel to the coordinate axes.  ...  (sath, 84a: 94028 where a is a real constant and the real function g(t), O<1<oo, is measurable and satisfies almost everywhere the condition |g(t)|<a/2.  ... 
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