NA Digest Monday, December 09, 2013 Volume 13 : Issue 42

Today's Editor:
Daniel M. Dunlavy
Sandia National Labs

Submissions for NA Digest:


From: Mathias Krause
Date: December 03, 2013
Subject: The OpenLB Project: New Release 0.8 Available

The OpenLB developer team is very happy to announce that a new release
of the open source Lattice Boltzmann Method (LBM) code is available
for download on the project website . Besides
many new features, a lot of new interfaces have been added. Have a
look and be excited: you will find OpenLB much more user-friendly.

New features are:
- New model to simulate flows in isotropic porous media
- New model to simulate turbulent flows (SmagorinskyBGKdynamics,
smagorinskyMRTdynamics, yPlus functor).
- New model (Bouzidi) for curved boundaries (OffLatticeBoundaryConditions)
with automatic assignment from stl-files.
- All examples updated with a newly developed generic structure which
will help to set up user-defined examples more easily. The layout
now always includes functions for initialization of the lattice and
the geometry, the re-setting of boundary values before and during
the simulation and the writing of data to the console and vtk-files.
- New feature for semi-automatic setting of inflow and outflow
materials using region growing, rename, rename by analytical defined
function or rename by distance to surface form a stl-file.
- Generic Functor concept implemented which includes new features and
enables user-friendly handling of pre- and post-processing
- New example (examples/aorta3d) illustrating new features like the
Smagorinski model, Bouzidi boundary condition and functors.

PS: Please consider to contribute code or join the developer team
yourself to strengthen the LB community by sharing your findings in an
open and easy reproducible way!


From: Mike Powell
Date: December 08, 2013
Subject: LINCOA (LINearly Constrained Optimization Algorithm)

Please send me an e-mail if you would like to receive a free copy of
the LINCOA Fortran software, which I have developed for minimization
subject to general linear constraints on the variables when
derivatives of the objective function are not available. There are no
restrictions on its use. I seem to have succeeded in making the amount
of routine work so small that it is sometimes possible for the number
of variables to be in the hundreds. Much larger problems, however,
would require attention to be given to sparsity, which I have not
done. I am happy with the performance of LINCOA on small problems too,
especially when one wants a local minimum to high accuracy without a
good starting point. Trust regions are employed, with quadratic models
that are updated by the symmetric Broyden method.


From: Bruce Bailey
Date: December 06, 2013
Subject: New Book, Applied and Computational Measurable Dynamics

Announcing the December 3, 2013, publication by SIAM of:
Applied and Computational Measurable Dynamics, by Erik M. Bollt and
Naratip Santitissadeekorn

2013 / xiv + 368 pages / Softcover / 978-1-611972-63-4 / List Price
$89.00 / SIAM Member Price $62.30 / Order Code MM18

Until recently, measurable dynamics has been held as a highly
theoretcal mathematical topic with few generally known obvious links
for practitioners in areas of applied mathematics. However, the
advent of high-speed computers, rapidly developing algorithms, and new
numerical methods has allowed for a tremendous amount of progress and
sophistication in efforts to represent the notion of a transfer
operator discretely but to high resolution.

This book connects many concepts in dynamical systems with
mathematical tools from areas such as graph theory and ergodic
theory. The authors introduce practical tools for applications related
to measurable dynamical systems, coherent structures, and transport

The new and fast-developing computational tools discussed throughout
the book allow for detailed analysis of real-world problems that are
simply beyond the reach of traditional methods.

To order or for more about this book, including links to its table of
contents, preface, and index, please visit


From: Bruce Bailey
Date: December 06, 2013
Subject: New Book, Chaotic Signal Processing

Announcing the December 5, 2013, publication by SIAM of:
Chaotic Signal Processing, edited by Henry Leung

2013 / x + 179 pages / Softcover / 978-1-611973-25-9 / List Price
$79.00 / SIAM Member Price $59.30 / Order Code OT136

Chaos is a deterministic random phenomenon. Many signal processes
(e.g., radar and sonar) have a random appearance, and chaos provides
an alternative approach to processing these signals. This book
presents up-to-date research results on chaotic signal processing,
including the application of nonlinear dynamics to radar target
recognition, an exactly solvable chaos approach for communications, a
chaotic approach for reconfigurable computing, system identification
using chaos, design of a high resolution LADAR system based on chaos,
and the use of chaos in compressive sensing.

Contents: Chapter 1: An Overview of Chaotic Signal Processing;
Chapter 2: Target Recognition Using Nonlinear Dynamics; Chapter 3:
Communicating with Exactly Solvable Chaos; Chapter 4: Logic from
Dynamics;Chapter 5: System Identification Using Chaos; Chapter 6:
Characterization and optimization of a Chaotic LADAR System for High
Resolution Range Determination; Chapter 7: Reverse Engineering of
Complex Dynamical Systems Based on Compressive Sensing; Index.

To order or for more about this book, including links to its table of
contents, preface, and index, please visit


From: Bruce Bailey
Date: December 04, 2013
Subject: New Book, Uncertainty Quantification

Announcing the December 2, 2013, publication by SIAM of:
Uncertainty Quantification: Theory, Implementation, and Applications,
by Ralph C. Smith

2013 / xviii + 383 pages / Hardcover / 978-1-611973-21-1 / List Price
$74.00 / SIAM Member Price $51.80 / Order Code CS12

This new textbook provides readers with the basic concepts, theory,
and algorithms necessary to quantify input and response uncertainties
for simulation models arising in a broad range of disciplines.

The book begins with a detailed discussion of applications where
uncertainty quantification is critical for both scientific
understanding and policy. It then covers concepts from probability
and statistics, parameter selection techniques, frequentist and
Bayesian model calibration, propagation of uncertainties,
quantification of model discrepancy, surrogate model construction,
and local and global sensitivity analysis. The author maintains a
complementary web page where readers can find data used in the
exercises and other supplementary material.

To order or for more about this book, including links to its table of
contents, preface, and index, please visit


From: Melina Freitag
Date: December 09, 2013
Subject: SIAM UKIE Annual Meeting, UK, Jan 2014

The next Annual Meeting of the SIAM UK & Republic of Ireland Section
will take place 9th January 2014 at University College London.

Confirmed invited speakers are:

Irene Fonseca (Carnegie Mellon, SIAM President), Alain Goriely
(Oxford), Nick Gould (Rutherford Appleton Lab), Stephen Hendry
(Oasys Software Ltd), Robert MacKay (Warwick, IMA President), Niall
Madden (Galway).

For further details please visit

Registration deadline is Friday, 20th December 2013.

We are looking forward to welcoming you in London,
Timo Betcke (Local Organiser),
Endre Süli, Françoise Tisseur and Melina Freitag (SIAM Officers).


From: Edmond Chow
Date: December 08, 2013
Subject: New Deadline, SIAM Parallel Processing, USA, Feb 2014

SIAM Conference on Parallel Processing for Scientific Computing

February 18-21, 2014, Portland, Oregon, USA

*** The poster deadline has been extended to January 3, 2014. ***

The Society for Industrial and Applied Mathematics is proud to present
the Fourteenth Conference on Parallel Processing for Scientific
Computing. This series of conferences has played a key role in
promoting parallel scientific computing, algorithms for parallel
systems, and parallel numerical algorithms. The conference is unique
in its emphasis on the intersection between high performance
scientific computing and scalable algorithms, architectures, and
software. The conference provides a forum for communication among the
applied mathematics, computer science, and computational science and
engineering communities.


From: Steffen Börm
Date: December 03, 2013
Subject: Winter School on Hierarchical Matrices, Germany, Feb 2014

Date: February 24th to 28th, 2014
Place: MPI MIS, Leipzig
Registration: January 28th, 2014. Early registration recommended.
Organizers: Prof. Dr. Dr. h.c. Wolfgang Hackbusch, MPI MIS Leipzig
Prof. Dr. Lars Grasedyck, RWTH Aachen
Dr. Ronald Kriemann, MPI MIS Leipzig
Prof. Dr. Steffen Börm, CAU Kiel

Hierarchical matrix techniques can be used to treat dense matrices
efficiently. Applications include
- the construction of preconditioners for elliptic PDEs,
- the discretization of integral operators,
- the evaluation of matrix functions and
- the approximation of solutions of matrix equations.

The key idea is to use a data-sparse representation of the dense
matrix and perform operations like the matrix-vector multiplication,
matrix multiplication, factorization or inversion preserving this

The winter school consists of lectures and exercises. The lectures
present the fundamental concepts of hierarchical matrices, e.g.,
compression techniques and algorithms for algebraic operations. The
exercises offer participants the opportunity to experience
hierarchical matrices in a number of applications, e.g., by
constructing an approximation of an integral equation or a
preconditioner for an elliptic PDE.


From: Tim Phillips
Date: December 09, 2013
Subject: British Applied Mathematics Colloquium, UK, Apr 2014

The next British Applied Mathematics Colloquium will be held at
Cardiff University, 28-30 April 2014.

Invited Speakers:
- Prof. Mary Lou Zeeman, Bowdoin College, Harnessing Maths to
Understand Tipping Points in Climate and Sustainability
- Prof. Martine Ben Amar, Ecole Normale Supérieure, Paris
Morphogenesis and Embryogenesis
- Prof. Helen Byrne, University of Oxford, Angiogenesis under the
Microscope: New Mathematical Perspectives on an Old Problem
- Prof. Michael Graham, University of Wisconsin at Madison The
Stewartson Lecture, Drag Reduction and the Dynamics of Turbulence in
Simple and Complex Fluids
- Prof. Ross McPhedran, University of Sydney, Ruling the Waves: from
Photonic Crystals to Metamaterials
- Prof. Alfio Quarteroni, Ecole Polytechnique Federale de Lausanne and
Politecnico di Milano, The IMA Lighthill Lecture, The Challenge of
Complexity in Numerical Simulations

Further details on registration and submission of abstracts may be
found on the BAMC website:
Deadline for Early Bird registration is 1 March 2014. Please contact
Prof. Tim Phillips (, Chair) or Prof. Simon Cox
(, Secretary) with any queries.


From: Juergen Fuhrmann
Date: December 05, 2013
Subject: FVCA7, Germany, Jun 2014

The International Symposium on Finite Volumes
for Complex Applications VII (FVCA7)
Berlin, June 15-20, 2014

The goal of the symposium is to bring together mathematicians,
physicists, and engineers interested in physically motivated
discretizations. Contributions to the further advancement of the
theoretical understanding of suitable finite volume, finite element,
discontinuous Galerkin and other discretization schemes, and the
exploration of new application fields for them are also welcome.

Proceedings: All contributors are supposed to submit an 8 page paper
to the conference proceedings issued as a hardcover book at Springer.
Contributions are selected according to the review by the Scientific
Committee. The submission deadline is January 31, 2014.

Confirmed invited speakers: A.Almgren (LNBL), P.Bochev (Sandia),
F.Bouchut (Univ. Paris- Est), C.Chainais-Hillairet (Univ. Lille 1),
M.Dumbser (Univ. Trento), Ph.Helluy (IRMA), K.Mikula (Slovak
Univ. Tech.),S Mishra (ETH Zurich)

FVCA7 Organizing committee, c/o Marion Lawrenz
Weierstrass Institute for Applied Analysis and Stochastics (WIAS)
Mohrenstr. 39, 10117 Berlin, Germany


From: Roderick Melnik
Date: December 08, 2013
Subject: Coupled Processes in Bio/Nano Systems, Spain, Jul 2014

The 2014 WCCM Workshop/Minisymposium on "Computational Modeling of
Multiphysics/Multiscale Coupled Processes in Biological and
Nanotechnological Systems" will be held in Barcelona, July 20-25,
2014. This event is part of the the 11th World Congress on
Computational Mechanics (WCCM2014). Please submit your one-page
abstract before December 15, 2013. Details are given at

Giovanna Guidoboni (USA)
Roderick Melnik (Canada)
Riccardo Sacco (Italy)


From: Tilo Arens
Date: December 09, 2013
Subject: IMSE 2014, Germany, Jul 2014

13th International Conference in Science and Engineering (IMSE 2014)
20-24 July 2014
KIT, Karlsruhe, Germany

Invited speakers for IMSE 2014 include
Jon Trevelyan, Durham University
Martin Costabel, University of Rennes
Wolfgang Wendland, University of Stuttgart
Marius Mitrea, University of Missouri-Columbia

Relevant to IMSE are all original and effective methodologies
relevant for solutions of mathematical models that describe
physical phenomena, processes and related subjects. Conference
themes include

analytic and numerical methods; ordinary and partial differential
equations; asymptotic and perturbation methods; integral equations;
boundary integral techniques; stochastic methods; symmetries and
conservation laws; hybrid approaches; vortex methods; signal
processing; image analysis

All further information regarding this conference are available at
the web site. The conference organizers may also be contacted
directly via


From: Guido Kanschat
Date: December 06, 2013
Subject: PDESoft, Germany, Jul 2014

PDESoft 2014 Heidelberg
July 14 - 16, 2014

The second PDESoft Conference will be jointly organized by HITS and
IWR in Heidelberg.

PDESoft conferences provide a discussion venue for developers and
users of such libraries. They serve as a focus point, where the
state-of-the-art implementation of state-of-the-art algorithms is
discussed. They give developers a chance to share ideas with
developers of other packages and users. And users of such sofware have
an opportunity to learn about the development principles of software
and contribute their knowledge from the point of view of application.

Please save the dates for this conference. Further information is
available at the conference web site or by
email from


From: Prof. Yiannis G. Saridakis
Date: December 09, 2013
Subject: NUMAN 2014, Greece, Sep 2014

We are organizing the 6th International Conference on Numerical
Analysis "NumAn2014 - Recent Approaches to Numerical Analysis: Theory,
Methods and Applications". The conference will take place at the old
venetian harbor of Chania, on the island of Crete, Greece, on
September 2-5, 2014.

The themes of the conference are in the broad area of numerical
analysis and applications, including: numerical methods, algorithms
and software; numerical and scientific computing; numerical methods
and computational modelling in Science and Engineering; parallel and
high-performance numerical computation

All areas of numerical analysis are considered, including: numerical
linear algebra; numerical solution of ordinary, partial and stochastic
differential equations; numerical solution of integral equations;
nonlinear and optimization problems

The aims of the conference are: to bring together and bequeath
scientific activities, directions and pursuits of scientists on
subjects that pertain to the conference; to foster an exchange of
views and ideas; to study the theoretical background required for
methods, algorithms and techniques used in applications; to search
directions of theoretical results towards applications; to highlight
open problems and future directions of numerical analysis

We invite interested researchers to submit one-page abstracts, for
lecture or poster presentations, on topics pertaining to the themes of
the conference and the workshops by Wednesday, April 23, 2014.


From: Yuan Lou
Date: December 06, 2013
Subject: Faculty/Postdoc Positions, Applied Math, Renmin Univ of China

The Renmin University of China (RUC) is developing major
initiatives in the area of mathematics and applications. It
invites applications for both regular faculty and visiting

a) Three faculty positions starting Fall 2014. All ranks will be
considered. We seek applications in all areas of Applied and
Computational Mathematics, with emphasis on, but not limited to,
applications to biology.

b) Three postdoc positions starting Fall 2014 or earlier. All
areas of Applied and Computational Mathematics will be considered.

Please arrange to send the following materials to
Curriculum Vitae, statement of research plans, and at least three
letters of recommendation. Review of applications will begin on
January 1, 2014, and will continue until the positions are filled.

RUC, also known as the People's University of China, is located in
Beijing. It is one of the leading humanities and social science-
focused universities in China, gaining national recognition for
excellence in theoretical economics, applied economics, legal studies,
sociology, journalism & communication. The university also embraces
disciplines in natural sciences. More information about RUC can be
found at the website


From: John Stockie
Date: December 07, 2013
Subject: Tenure Track Position, NA or Scientific Computing, SFU

The Department of Mathematics at Simon Fraser University invites
applications for a tenure-track position at the Assistant Professor
level starting September 1, 2014. We are looking for researchers
working in the areas of numerical analysis or scientific computing.

We seek applicants with an outstanding, independent research program
and a strong commitment to undergraduate and graduate teaching. The
successful candidate will contribute to an active, innovative
department with strong research groups and a thoughtful teaching

All qualified candidates are encouraged to apply; however, Canadians
and Permanent Residents of Canada will be given priority. Simon
Fraser University is committed to an equity employment program that
includes special measures to achieve diversity among its faculty and
staff. We therefore particularly encourage applications from women,
people of aboriginal descent, persons with disabilities, and members
of visible minorities.

The Department's web page is at Applications can be
submitted through MathJobs at

Applications must include a curriculum vitae together with a
descriptive statement on research plans and a teaching dossier, and a
link to or electronic copies of up to three preprints or reprints.
Candidates must ensure that four letters of reference are submitted
through by the deadline. One of these letters must
address the candidate’s teaching record.

Closing date: January 10, 2014. The competition remains open until the
positions are filled. Only short-listed candidates will be notified of
the outcome of their application. The positions are subject to
availability of funding and final approval by the SFU Board of


From: Michal Kocvara
Date: December 04, 2013
Subject: Lecturer Position, Math Optimization, Birmingham, UK

School of Mathematics, College of Engineering and Physical Sciences
University of Birmingham, UK

Applications are invited for a Lectureship post in Mathematical
Optimization. We particularly welcome candidates working in either
of the following areas:
- PDE constrained optimization, including novel approaches like
nonlinear multigrid and domain decomposition methods, mixed-integer
nonlinear programming, optimization with equilibrium constraints;
- Very large scale computational optimization with applications to
data mining, compressed sensing, image recognition and others;
- Discrete optimization, including optimization in abstract spaces,
in particular over idempotent semirings such as max-algebra or
fuzzy algebra; mathematical foundations of these structures.

The successful candidate will have a PhD in an area of Mathematical
and Computational Optimization with a strong research track record in
discrete, nonlinear, multi-disciplinary or computational optimization,
or a related area, and a genuine commitment to teaching, along with
excellent presentation, communication and interpersonal skills.

Informal enquiries can be directed to Professor Michal Kocvara
(tel. + 44 121 414 6598, email or Professor
Paul Flavell (tel. + 44 121 414 7566, email

Starting salary in the range of GBP37,382 to GBP44,607 a year
(potential progression on performance once in post to GBP50,186).

Closing date: 2 January 2014 Reference: 36927

To download the details and submit an electronic application online
visit: -> Current vacancies -> post
number 36927


From: Jiguang Sun
Date: December 04, 2013
Subject: Postdoc Position, Applied Math, Michigan Tech Univ

Applications are invited for a non-tenure-track, postdoc position in
the field of scientific computing and/or inverse scattering
problems. The appointment will be for one year, but might be extended
to a second year subject to satisfactory performance and the
department's ability to fund the second year.

The candidate is expected to develop numerical methods for high order
eigenvalue problems/wave propagation or work at efficient algorithms
for reconstruction of scattering obstacles. The postdoc will also be
teaching one course per semester. Evidence of effective teaching is

Review of applications will begin immediately and continue until the
position is filled. The anticipated start date is January 2014
(negotiable). Candidates must complete all requirements for the PhD in
Applied Mathematics or a related field by the start date. Interested
candidates should submit a vita, three letters of recommendation (at
least one of which addresses teaching), and research and teaching
statements through

Michigan Tech is an ADVANCE institution, located in Houghton,
Michigan, one of a limited number of universities in receipt of NSF
funds in support of our commitment to increase diversity and the
participation and advancement of women in STEM.

Michigan Technological University is an Equal Opportunity Educational
Institution/Equal Opportunity Employer, which includes providing equal
opportunity for protected veterans and individuals with disabilities.


From: Susanne Brenner
Date: December 07, 2013
Subject: Postdoc Position, Computational Math, LSU

The Center for Computation & Technology (CCT) at Louisiana State
University invites applications for a postdoctoral position in
Computational Mathematics starting in August 2014.

Further information and application submission at



From: Raimund Bürger
Date: December 04, 2013
Subject: Postdoc Positions, NA of PDEs, Chile 2014

The Research Team project ACT 1118 on Numerical Analysis of Partial
Differential Equations (ANANUM), a three-year project financed by
CONICYT (Chile), is offering postdoctoral positions at Universidad de
Concepción or Pontificia Universidad Católica de Chile. Applications
are sought in all areas related to Numerical Analysis of PDEs.
Applicants should have finished their doctoral work not before
2010. Candidates are requested to submit a Curriculum Vitae (including
a list of publications), a research statement describing the intended
postdoctoral work, and a letter of intent, which should include the
desired period of appointment and an explicit statement of which of
the main researchers (Raimund Bürger, Gabriel N.Gatica, Norbert Heuer,
Rodolfo Rodríguez, Mauricio Sepúlveda) should supervise the
project. Applicants may optionally submit letters of recommendation.

The positions are for one year and do not involve teaching
duties. Positions are renewable for up to three years by application
to the yearly FONDECYT postdoctoral research competition. Possibility
to apply for national grants in case of a longer stay is also open.
The positions are available from March 1, 2014; however there is some
flexibility in starting appointments (preferably before June 30,
2014). The monthly salary is CLP 1.456.000 before taxes (around US$
2800). A flight ticket (round trip) will be covered. Additional
funding for attending meetings and conferences within Chile is

Applications should be submitted by e-mail before January 15, 2014 to
Raimund Bürger, director of project ACT1118,



From: Angela Kunoth
Date: December 06, 2013
Subject: PhD/Postdoc Positions, Numerics of PDEs, Univ of Cologne

Several PhD/PostDoc Positions in Numerics of PDEs
(Pay Grade 13 TV-L 50-100%)

The Mathematical Institute at the University of Cologne, Germany, is
soliciting applications for several PhD or PostDoc positions in the
working groups of Prof. Gregor Gassner and Prof. Angela Kunoth, to be
filled as soon as possible. Candidates are supposed to work in
research projects in numerics of PDEs, in particular, concerning

- Discontinuous Galerkin methods for conservation laws, scientific
computation and high-performance-computing (Prof. Gassner),

- Multiscale and wavelet methods for PDEs, PDE-constrained control
problems, numerical finance (Prof. Kunoth).

They are expected to participate in the regular assistant duties at
the institute concerning teaching and administration. We are
searching for candidates with a very good Master's or PhD degree in
Mathematics or a related area who possess a profound knowledge in the
numerics of PDEs and in the implementation and development of
algorithms. We require substantial language skills in both German and
English as well as interest in working in interdisciplinary research

The official announcement (in German) can be found at


From: Elisabeth Larsson
Date: December 04, 2013
Subject: PhD Positions, Interdisciplinary Math, Uppsala Univ

The Centre for Interdisciplinary Mathematics (CIM), Uppsala
University, Uppsala, Sweden, invites applications for three PhD
positions. CIM carries out innovative interdisciplinary research
between the mathematical sciences and other areas of science and
industry. For more information see

The successful applicant will work with an interdisciplinary
mathematics project, combining two different disciplines (or more),
where at least one is of a mathematical nature.

Applicants must contact a host institution at Uppsala University to
discuss potential research projects before submitting their written

The university is striving for a more even gender balance in its
research and teaching staff, and women are especially encouraged to
apply for these positions.

The application deadline is January 31. For instructions about how
to apply, see

For further information about the position, please contact the
director of CIM Dr. Elisabeth Larsson (


From: Romas Baronas
Date: December 08, 2013
Subject: Contents, Nonlinear Analysis: Modelling and Control, 19 (1)

Nonlinear Analysis: Modelling and Control, ISSN 1392-5113,
Volume 19, Number 1, 2014

A free on-line edition is available at:


Exponential synchronization for reaction-diffusion neural networks
with mixed time-varying delays via periodically intermittent control,
p. 1–25, Qintao Gan, Hong Zhang, Jun Dong

Particle Swarm Optimization for Linear Support Vector Machines based
classifier selection, p. 26–42, Gintautas Garšva, Paulius Danėnas

Common fixed points for \alpha-\psi-\varphi-contractions in
generalized metric spaces, p. 43–54, Vincenzo La Rosa, Pasquale Vetro

The recognition and modelling of a backbone and its deformity,
p. 55–66, Ramunas Markauskas, Algimantas Juozapavicius, Kestutis
Saniukas, Giedrius Bernotavicius

Testing the epidemic change in nearly nonstationary autoregressive
processes, p. 67–82, Jurgita Markeviciutė, Alfredas Rackauskas,
Charles Suquet

On a generalized SVEIR epidemic model under regular and adaptive
impulsive vaccination, p. 83–108, Raul Nistal, Manuel de la Sen,
Santiago Alonso-Quesada, Asier Ibeas

Comparison of spatial classification rules with different conditional
distributions of class label, p. 109–117, Giedrius Stabingis, Kestutis
Ducinskas, Lijana Stabingiene

Analysis of a duopoly game with heterogeneous players participating in
carbon emission trading, p. 118–131, Lingrui Zhao, Jixiang Zhang

Stability and bifurcation in a ratio-dependent Holling-III system with
diffusion and delay, p. 132–153, Wenjie Zuo, Junjie Wei

End of Digest