Simulation and Theory of Differential-Integral Equation in Applied Physics
September 27th, 2025 (UTC +8)
Dalian University of Technology
Dr. Shuxia Zhao obtained her Bachelor and Master degrees from the Hebei Normal University within the years of 2000-2007, and her PhD from the Dalian University of Technology within the years of 2007-2010. Then, she went to the University of Antwerp, Belgium for the Post-doc working experience within the years of 2010-2012, and later on she returned to the Dalian University of Technology, working formally as a teacher and meanwhile a scientific researcher. Before the formal employment, she sequentially investigated the nitrogen parallel plate and hollow cathode discharges with the particle-in-cell and Monte Carlo simulation, the E-to-H mode transition and hysteresis of argon inductively coupled plasma with both the fluid and hybrid models, and the fluorocarbon plasma and its etching mechanisms based on silicon material wafer. She is now engaged in the numerical simulation and theoretical analysis of discharge structure hierarchy of electronegative and radio frequency inductively coupled plasma. The hierarchy presently discovered includes the stratification, parabola and ellipse profiles of ion density, double layer, acoustic ionic vibration, blue sheath, ionization instability, and different types of mass and energy self-coagulations, e.g., ambi-polar type, chemical type, and thermal conductive type. This detailed discharge hierarchy helps people deep recognize the plasma source and possibly open new fields for its applications, such as free nuclear fusion based on the self-coagulation and compressible heating mechanisms.
The engineering and physical issues are related to the differential and integral equations.
The differential equations include the ordinary differential equation, the partial differential equation, and the differential equation set. The complex and nonlinear differential equation set, such as the fluid model of plasma source, is hardly solved by analytics, but relies on the numerics, such as the finite difference, finite element, and finite volume etc. The numerics, e.g., explicit or implicit algorithm and flux-corrected transport algorithm, depend on the stiffness of differential equation and its math types, such as the parabola, ellipse and hyperbola, and on the positive property of specific quantities, e.g., density and temperature. The simple differential equation at reasonable approximations can be solved analytically, hence possibly used to establish new scientific theory, such as the self-coagulation based on a quasi- Helmholtz equation that consists of free diffusion and chemical source term of species depletion (not generation). It is noted that the numerics and analytics of differential equation need to collaborate together to reveal the dynamics of complex system that we are presently confronted with, i.e., they are complementary to advance the scientific researches.
The Boltzmann equation that is the base of transport phenomena is a typical differential and integral equation. Its applications are diverse, including the linear approximation solutions that give the kinetics of plasma source and the transport coefficients for fluid model simulation of plasma source. Besides, the fluid model equations themselves can be deduced by the different orders of matrix equation of Boltzmann equation. Both the Boltzmann equation and the fluid model simulation of plasma source help people understand the mechanism of plasma source and hence optimize their applications in industry, such as the etching and deposition. Besides for the plasma transport and chemical process, there are still wave dynamics and instabilities in the plasmas and they can be described by the linear wave theory and dispersion relation of wave, which also belong to the analytics, as we believed.
Regarding the above points suggested, this symposium welcomes any submission that relates to the differential and integral equation, differential equation and their interdisciplinary meanings with the applied physics, such as the fluid simulation of plasma source, the analytics of Boltzmann equation, the possible numerics of it, the benchmark and the numerical stability and precise analysis of conventional computational fluid dynamics and plasma-oriented fluid simulations, the possible deduction of fluid model from the Boltzmann equation, the wave and instability existing within plasma or other media, the self-coagulation possible correlations with other disciplines, such as the biology, and the gaseous discharge structure, etc.
The main topics of this symposium are listed below.
Meanwhile, submissions aligned with the overall conference theme are also welcome.
Prospective authors are kindly invited to submit full papers that include title, abstract, introduction, tables, figures, conclusion and references. It is unnecessary to submit an abstract in advance. Please submit your papers in English.
Each paper should be no less than 4 pages. One regular registration can cover a paper of 6 pages, and additional pages will be charged. Please format your paper well according to the conference template before submission. Paper Template Download
Please prepare your paper in both .doc/.docx and .pdf format and submit your full paper by email with both formats attached directly to [email protected]
Process | Date & Time |
---|---|
Submission Deadline | September 20, 2025 |
Symposium Date | September 27, 2025 |
Notification of Acceptance | 7-20 workdays |
Accepted papers of the symposium will be published in Theoretical and Natural Science (TNS) (Print ISSN 2753-8818), and will be submitted to Conference Proceedings Citation Index (CPCI), Crossref, CNKI, Portico, Engineering Village (Inspec), Google Scholar, and other databases for indexing. The situation may be affected by factors among databases like processing time, workflow, policy, etc.
Title: Theoretical and Natural Science (TNS)
Press: EWA Publishing, United Kingdom
ISSN: 2753-8818, 2753-8826 (electronic)
This symposium is organized by CONF-APMM 2025 and it will independently proceed the submission and publication process.
* The papers will be exported to production and publication on a regular basis. Early-registered papers are expected to be published online earlier.
No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, P.R.C.
If you want to attend the workshop on-site, please email [email protected]. The symposium seats are limited. Both contributors and non-contributors who wish to participate in the symposium in person need to apply to the symposium organizers.
In order to ensure the information is correct and up to date, there may be changes which we are not aware of. And different countries have different rules for the visa application. It is always a good idea to check the latest regulations in your country. You should confirm details with your local Consular Office. This page just gives some general information of the visa application.
Check which visa you need to get
The majority of foreign citizens are required to obtain one of the China visas in order to visit the country, as there are only a few nationalities who are granted visa free entry for China for short stays. At the moment, travelers from countries who are not visa-exempt for China are obliged to apply for a visa in person from a Chinese embassy or consulate, with only a few exceptions, including for tour groups and airline crew from a few select countries. This is expected to change in the near future for select eligible nationalities when China introduces an electronic application form for visas. This will make it possible to apply for certain visa types for China exclusively online, eliminating the need to travel to an embassy or consulate in person.
As the launch date for the Chinese electronic is yet to be finalized, however, non visa-exempt citizens are still currently required to apply for one of the following visa types for China from an embassy or consulate.
China Visa Registration Process
Foreign nationals who wish to travel to China will need to follow a registration process to obtain their visa. The China Visa application form should be signed and every question must be answered. Applicants may select "none" if the question does not apply to their individual circumstances. Applications for the Chinese visa must be completed in block capital letters and handwritten changes will not be accepted. The signature on the China visa application must match the signature on the applicant's passport. People's Republic of China diplomatic missions require that each visa application is completed following strict guidelines. Supporting documents must be accurately and carefully prepared.
How Long Does It Take to Get a Visa to China
Generally speaking, if the applicant meets all the requirements, has all the necessary documents and holds a passport with at least six months validity and two blank pages it should take about four working days to get a Chinese visa. Some People's Republic of China Diplomatic Missions offer rush service, which speed up the processing time of a visa for China. Nonetheless, it is only available for cases of extreme urgency and depend on the approval of the Chinese Consular Office. Foreign nationals who wish to travel to Mainland China, whether it is for tourism, business, transit or other, are recommended to apply between two months to fifteen days before their departure. If the traveler applies with too much time in advance, they visa might expire before they can use it. When a visa for China is granted, the validity period of such visa begins from the moment it was approved.
How Do You Get a Visa for China?
The People's Republic of China has several types of visas in place. The visa a traveler needs depends on their citizenship, purpose of trip and the length of their stay. Currently, there are only some countries that are exempt from applying for a China visa to travel to Mainland China. However, the country does waive visas if the traveler meets specific requirements and is traveling to certain regions.
To apply for a Chinese visa, the traveler will need to complete an application form, attach a recently-taken color photo, submit the application and pay the respective fee. Tourist that are from non-visa exempt countries should apply for the Tourist (L) visa, issued to aliens who are traveling to Mainland China for tourism purposes only. Those who wish to carry out business in China will need to obtain the Business (M) China visa.
To successfully apply for a visa to China, the applicant will need to provide supporting documents and a valid passport. If applying for a Tourist (L) visa to China, the supporting documents refer to round-trip tickets, accommodation bookings, or an invitation letter from a travel agency in China. It is important to note that the China visa application requirements will vary depending on the type of visa the traveler is applying for.