STEP-4

STEP is a discussion-based international workshop on tribo-electricity and particle charging. The workshop scope covers a range of fundamental and applied topics related, but not limited to, the mechanism of generation of electrostatic charge, control of charged particles, measurement of electrostatic charge, and other topics related to tribo-electrisity. The workshop is open to all researchers and engineers in the field of Physics, Chemistry, Chemical Engineering, Electrical Engineering, Mechanical Engineering, and others. The STEP workshop provides an international forum to enable researchers and engineers in the field of tribo-electricity to have interactive dialog and to establish an international network.

Lanzhou city is located in almost center of mainland China, along the Yellow River. In the past the city was an important link on the ancient Northern Silk Road.

organized by
Li Xie & Jun Zhou, chairs, Lanzhou University, China
Tatsushi Matsuyama, secretary general, Soka University, Japan

Invited Speakers: (subject to change)

Daniel Lacks, Case Western Reserve University, USA
Tatsushi Matsuyama, Soka University, Japan
Li Xie, Lanzhou University, China
Jun Zhou, Lanzhou University, China
Jun Yao, China University of Petroleum (Beijing), China
Sidd Rajupet, Case Western Reserve University, USA
Henry Squire, Case Western Reserve University, USA
Joseph Toth, Case Western Reserve University, USA
Blaire Volbers, Case Western Reserve University, USA
Yoshiaki Ota, Soka University, Japan
Qizan Chen, Case Western Reserve University, USA
Xuebang Gao, Lanzhou University, China
Haichao Zhong, Lanzhou University, China
Xvqiang Dou, Lanzhou University, China
Zhixin Du, Lanzhou University, China
Chen Zhou, Lanzhou University, China
Wei Lu, Lanzhou University, China

dress code: casual
topics: fundamentals of
- mechanisms of tribo-electrification
- electrostatic effects on particles
- measurements on electrostatics
schedule: note: conference schedule was updated.
- 15th June: deadline for abstract submission
- 13th July: tour to the experimental station of wind-tunnel
- 14th July: workshop - presentation
- 15th July: business meeting (optional)
- 15th July: move to Dunhuang for special excursion
- 16th July: special excursion at Dunhuang
venue: room #327 Qianlian Building, Lanzhou University, Lanzhou, China
transportation:
- First of all you will fly to Lanzhou Zhongchuan International Airport (LHW).
- From airport:
  - Taxi: Taxi is directly to your hotel, and it is about 1 hour, which depends on the traffic condition, about 180RMB(CNY), depending on the traffic condition as well.
    - Note: Taxi drivers in China do not speak English. They do not read your printout even only of hotel names in English. It is strongly advised to take a printout of webpage of your hotel in Chinese version (top page).
  - Shuttle bus: Shuttle bus is very convenient, and you can take it after you arrive at the airport, any time (0:00-24:00). Ticket window is at airport, and it is easily found, and there is an English sign. The price is 30RMB(CNY). The terminal stop of the shuttle bus is just on the opposite of Lanzhou University (bus stop name is "Lanzhou University: 兰州大学"). The bus trip is about 1 hour, depending on the traffic condition.
  - Train: You can find train ticket and schedule information, at the train site: https://kyfw.12306.cn/otn/leftTicket/init: an example of the train schedule on their web-page is shown below. Train trip is about 40 mins to the terminal (Lanzhou train station). When you arrive at the Lanzhou train station, you can take a taxi, with about 3 mins ride to your hotel. Or you can walk to your hotel within 15 mins. Ticket is available at a ticket window at the airport, and costs you 21.5RMB(CNY) on second class and 26RMB(CNY) on first class.
- general information of transportation from/to the airport is also available here:
  - https://www.topchinatravel.com/lanzhou/lanzhou-zhongchuan-airport.htm
  - https://www.travelchinaguide.com/cityguides/gansu/lanzhou/airport.htm
accommodation: If you have any difficulty to book a hotel below by yourself, please do not hesitate to contact Li Xie.
- On Campus: (suggested) Tushi Hotel (http://www.bur-app.com/tonal_shipmen_zion/862804/) around 300RMB(CNY)
- Off Campus: (just 5 mins on foot to campus)
  - Lanzhou-legend-hotel(http://www.lanzhou-legend-hotel.008h.com/) around 500RMB(CNY)
  - Lanzhou Hotel(http://www.lanzhouhotel.com/) around 500RMB(CNY)
registration: Registration is fee of charge. Simple coffee breaks will be covered by the host. Costs for lunch and dinner are on attendees' own expenses.
technical program:
Abstracts:

social activities:

pre-mixer, 13 July (details to be announced)
conference dinner, 14 July (details to be announced)

Special excursion to Dunhuang 敦煌 (details to be announced):

Do not miss this special opportunity, if you are interested in the history of the ancient Silk Road:
Dunhuan
- other Dunhuan travel guide pages:
  - 敦煌 Dunhuang Travel Guide
  - Archive for the 'Dunhuang Travel' Category
Mogao Caves
Crescent Lake

陽關 Yang Pass

	送元二使安西	Seeing Yuaner off on a Mission to Anxi

	渭城朝雨浥輕塵	The morning rain of Weicheng dampens the light dust
	客舍青青柳色新	The guest house is green with the colour of fresh willows
	勸君更盡一杯酒	Let's finish another cup of wine, my dear sir
	西出陽關無故人	Out west past the Yangguan, old friends there'll be none

Dunhuang Yardang National Geopark
Northern Silk Road
Hexi Corridor

VISA: If you need visa to enter China, please contact to Li Xie.
a few small tips for travelers to China:
- Security at airport:
  They have strict limitations what you can carry-on your flight in China. Please check the 'Regulations of Civil Aviation Administration of China' before you get flight.
  1. Electronic products that contain lithium batteries, such as watches, calculators, cameras, cell phones, portable computers and DVs, can be taken as hand luggage and consigned in the checked luggage. The rated energy of the batteries should not exceed 100wh; those between 100wh and 160wh must get the permission of the air company. The electric appliances should be carefully kept to prevent any unexpected startup.
  2. For spare batteries, they can only be carried as hand luggage and should be well preserved to avoid short-circuit. The rated energy of each battery should not exceed 100wh. The batteries between 100wh and 160wh must get the permission of the air company; each passenger is allowed to take at most two spare batteries.
    - Your spare battery has to be printed its capacity on its surface clearly.
  3. Lighters or Matches are not allowed at all: Inflammable and explosive items, such as lighters or matches are not allowed to carry in hand luggage or consigned luggage.
- Finding a nice coffee shop in town is somehow challenging. If you are a coffee addicted, it is advised to bring your own favorite instant coffee with you. Hot water is always available.
- You are strongly advised to carry TISSUE PAPER with you always.
- In general, the condition of public toilets is not perfect. You are advised to finish the things at your hotel room before your departure.
CONTACTS:
- Li Xie, Lanzhou University, China: Chair
- Tatsushi Matsuyama, Soka University, Japan: Secretary general

13th July, Friday
08:30	Registration
08:30	Meet at hotel lobby (Tushi Hotel)
08:40-12:00	City tour
12:00-14:00	Lunch break
15:00-18:00	Tour: Group A: Wind tunnel, at Yuzhong campus (transportation is provided) Tour: Group B: Laboratory of Prof.Li Xie, at main campus
18:00-21:00	Dinner, at food market
14th July, Saturday (at room #327 Qianlian Building)
08:30-09:00	Registration
08:30-09:00	Morning Gathering
08:45-09:00	Welcome Remarks Prof. Ning Huang (Key Laboratory of Mechanics on Disaster and Environment in Western China, Lanzhou University, China)
	Session 1: chair: Jun Yao (China University of Petroleum (Beijing), China)
09:00-09:40	#1 keynote lecture: Schrödinger's cat and a role of adsorbed water from humidity on contact charging Daniel J. Lacks (Case Western Reserve University, USA)
09:40-10:00	#2 Attenuation of signals due to charged particles in sand/dust storms Jun Zhou (Lanzhou University, China)
10:00-10:20	#3 Triboelectric charging of particles in a simulated sand storm: Particle density measurements Henry J. Squire (Case Western Reserve University, USA)
10:20-10:40	#4 Effect of charges carried on sand/dust particles on radar monitoring Xuebang Gao (Lanzhou University, China)
10:40-11:00	Tea Break, Group photo session
	Session 2: chair: Dan J. Lacks (Case Western Reserve University, USA)
11:00-11:40	#5 keynote lecture: Characterization of granular electrostatics generation Jun Yao (China University of Petroleum, Beijing, China)
11:40-12:00	#6 Reaction conversion in a microplasma reactor Joseph R. Toth III (Case Western Reserve University, USA)
12:00-12:20	#7 Effects of charged particles on laser signals: An experimental exploration Haichao Zhong (Lanzhou University, China)
12:20-12:40	#8 Potential applications of triboelectrics to secondary education Blaire M. Volbers (Case Western Reserve University, USA)
12:40-13:40	Lunch
	Session 3: chair: Jun Zhou (Lanzhou University, China)
13:40-14:20	#9 keynote lecture: Charging of multiple particles in a shaker Tatsushi Matsuyama (Soka University, Japan)
14:20-14:40	#10 Numerical investigation of effects of electromagnetic wave attenuation by charged sand particles Xvqiang Dou (Lanzhou University, China)
14:40-15:00	#11 Modeling of adhesion forces of particles on rough surfaces Qizan Chen (Case Western Reserve University, USA)
15:00-15:20	#12 Monte Carlo simulation of multiple scattering effects of electromagnetic waves by charged dust particle system Zhixin Du (Lanzhou University, China)
15:20-15:40	#13 An experimental investigation of sand particle flux in a vertical pipe under different electric field Chen Zhou (Lanzhou University, China)
15:40-16:00	Tea Break
	Session 3: chair: Tatsushi Matsuyama (Soka University, Japan)
16:00-16:30	#14 keynote lecture: Numerical simulation of Aeolian field in wind-blown sand flux based on particle tracking method Li Xie (Lanzhou University, China)
16:30-16:50	#15 Electrostatic surface potential distribution of polymer film after contact charging Yoshiaki Ota (Soka University, Japan)
16:50-17:10	#16 Numerical simulation of particle flux in a vertical pipe Wei Lu (Lanzhou University, China)
17:10-17:30	#17 Particle-size-dependent triboelectric charging in single-component granular materials: role of humidity Siddharth Rajupet (Case Western Reserve University, USA)
17:30-17:40	Closing Remarks Tatsushi Matsuyama (Soka University, Japan)
18:30-20:30	Gala Dinner (details will be informed at the workshop)
15th July, Sunday
08:30-09:30	Business meeting (optional)
10:00-	Special excursion to Dunhuang (optional)
15th July, Sunday
08:00-	Special excursion in Dunhuang (optional)