Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Chuanzhong Wang"'
Autor:
Yunfei Xu, Linying Mi, Boliang He, Dongwei Fan, Sisi Yang, Jun Han, Shanshan Li, Chuanzhong Wang, Changhua Li, Zhixuan Li, Chenzhou Cui
Publikováno v:
Astronomy and Computing. 25:89-93
Public observatory is playing more and more important role in astronomy education, citizen science and scientific research. It is developing rapidly and has made some progress through a variety of approaches. As relative small number and high operati
Autor:
Bill O'Neil, Antoine Pruvot, Pablo Cisternas, Chuanzhong Wang, Denny Cherniwchan, James McAndrew, Harvey Quintero
Publikováno v:
Day 4 Fri, April 26, 2019.
Hydrophobically coated sand, when combined with gas injection into an appropriate fluid, provides a significant improvement in proppant transport compared to uncoated sand. This supports the expectation that gas bubbles adhering to sand particles imp
Publikováno v:
Day 3 Thu, October 18, 2018.
Post stimulation proppant flowback can be a serious problem after the hydraulic fracturing process and can cause a variety of issues like: reduced fracture propping resulting in decreased conductivity and hydrocarbon production;erosion related damage
Autor:
Bill O'Neil, Harvey Quintero, G. Folkes, Weibing Lu, Kewei Zhang, Mike Mattucci, Chuanzhong Wang
Publikováno v:
Day 4 Wed, April 25, 2018.
The development of tight oil and gas shale relies heavily on multi-staged hydraulic fracturing, with the objective being to induce a complex network of interconnected fractures (artificial and natural), effectively created by water-like viscous fluid
Publikováno v:
Day 5 Thu, April 27, 2017.
As of June 23, 2016 the Occupational Safety and Health Administration (OSHA) final rule on Occupational Exposure to Respirable Crystalline Silica took effect. This final rule establishes a new worker permissible exposure limit to airborne silica dust
Publikováno v:
Day 2 Tue, November 15, 2016.
Proppant plays a key role in maintaining fracture conductivity during well production. Silica sand is by far the most commonly used proppant due to its low cost and availability. However, some of frac sands, especially Tier 2 sand, are not always sat
Autor:
Jun Han, Dongwei Fan, Chenzhou Cui, Chuanzhong Wang, Shanshan Li, Linying Mi, Zheng Li, Yunfei Xu, Boliang He, Changhua Li, Yihan Tao, Sisi Yang
Publikováno v:
ASP Conference Series; 2019, Vol. 522, p21-24, 4p
Publikováno v:
Langmuir. 23:8995-9001
Gemini surfactants are potential candidates as synthetic vectors for the delivery of genes into cells to induce protein expression. With the ultimate objective of obtaining a better understanding of the mechanism of DNA transfection, two new asymmetr
Publikováno v:
Phys. Chem. Chem. Phys.. 9:871-877
Improving the efficiency of gene delivery by using non-viral vectors is currently an area of considerable research interest. Novel derivatives of gemini surfactants having aza- (12-5N-12, 12-7N-12, 12-8N-12) and imino- (12-7NH-12) substituted spacer
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 264:166-171
A novel Gemini amphiphile, N , N ′-bis-(4-decyloxy-2-hydroxybenzylidene)-ethane-1,2-diamine, was synthesized and characterized. This amphiphile is capable of forming stable monolayer at air–water interface. The limiting area has a minimum when th