共 40 条
[1]
Stimuli-Driven Control of the Helical Axis of Self-Organized Soft Helical Superstructures
[J].
Bisoyi, Hari Krishna
;
Bunning, Timothy J.
;
Li, Quan
.
ADVANCED MATERIALS,
2018, 30 (25)

Bisoyi, Hari Krishna
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA

Bunning, Timothy J.
论文数: 0 引用数: 0
h-index: 0
机构:
US Air Force, Mat & Mfg Directorate, Res Lab, Wright Patterson AFB, OH 45433 USA Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA

Li, Quan
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA
[2]
Nanosecond electro-optics of a nematic liquid crystal with negative dielectric anisotropy
[J].
Borshch, Volodymyr
;
Shiyanovskii, Sergij V.
;
Li, Bing-Xiang
;
Lavrentovich, Oleg D.
.
PHYSICAL REVIEW E,
2014, 90 (06)

Borshch, Volodymyr
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

Shiyanovskii, Sergij V.
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

Li, Bing-Xiang
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA
Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Nanjing 210016, Jiangsu, Peoples R China Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

Lavrentovich, Oleg D.
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA
[3]
Nanosecond Electro-Optic Switching of a Liquid Crystal
[J].
Borshch, Volodymyr
;
Shiyanovskii, Sergij V.
;
Lavrentovich, Oleg D.
.
PHYSICAL REVIEW LETTERS,
2013, 111 (10)

Borshch, Volodymyr
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

Shiyanovskii, Sergij V.
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA

Lavrentovich, Oleg D.
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA
[4]
Diastereomeric liquid crystal domains at the mesoscale
[J].
Chen, Dong
;
Tuchband, Michael R.
;
Horanyi, Balazs
;
Korblova, Eva
;
Walba, David M.
;
Glaser, Matthew A.
;
Maclennan, Joseph E.
;
Clark, Noel A.
.
NATURE COMMUNICATIONS,
2015, 6

Chen, Dong
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Phys, Boulder, CO 80309 USA
Univ Colorado, Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Tuchband, Michael R.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Phys, Boulder, CO 80309 USA
Univ Colorado, Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Horanyi, Balazs
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Phys, Boulder, CO 80309 USA
Univ Colorado, Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Korblova, Eva
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Chem, Boulder, CO 80309 USA
Univ Colorado, Biochem & Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Walba, David M.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Chem, Boulder, CO 80309 USA
Univ Colorado, Biochem & Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Glaser, Matthew A.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Phys, Boulder, CO 80309 USA
Univ Colorado, Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Maclennan, Joseph E.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Phys, Boulder, CO 80309 USA
Univ Colorado, Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA

Clark, Noel A.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Colorado, Dept Phys, Boulder, CO 80309 USA
Univ Colorado, Soft Mat Res Ctr, Boulder, CO 80309 USA Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[5]
Microfluidic fabrication of cholesteric liquid crystal core-shell structures toward magnetically transportable microlasers
[J].
Chen, Lu-Jian
;
Gong, Ling-Li
;
Lin, Ya-Li
;
Jin, Xin-Yi
;
Li, Han-Ying
;
Li, Sen-Sen
;
Che, Kai-Jun
;
Cai, Zhi-Ping
;
Yang, Chaoyong James
.
LAB ON A CHIP,
2016, 16 (07)
:1206-1213

Chen, Lu-Jian
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China
Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Gong, Ling-Li
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Lin, Ya-Li
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Jin, Xin-Yi
论文数: 0 引用数: 0
h-index: 0
机构:
Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Li, Han-Ying
论文数: 0 引用数: 0
h-index: 0
机构:
Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Li, Sen-Sen
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Che, Kai-Jun
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Cai, Zhi-Ping
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China

Yang, Chaoyong James
论文数: 0 引用数: 0
h-index: 0
机构:
Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces,Dept Chem, Key Lab Chem Biol Fujian Prov,MOE Key Lab Spectro, Xiamen 361005, Peoples R China Xiamen Univ, Sch Informat Sci & Engn, Dept Elect Engn, Xiamen 361005, Peoples R China
[6]
Chirality invertible superstructure mediated active planar optics
[J].
Chen, Peng
;
Ma, Ling-Ling
;
Hu, Wei
;
Shen, Zhi-Xiong
;
Bisoyi, Hari Krishna
;
Wu, Sai-Bo
;
Ge, Shi-Jun
;
Li, Quan
;
Lu, Yan-Qing
.
NATURE COMMUNICATIONS,
2019, 10 (1)

Chen, Peng
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
JITRI, Inst Smart Liquid Crystals, Changshu 215500, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Ma, Ling-Ling
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Hu, Wei
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
JITRI, Inst Smart Liquid Crystals, Changshu 215500, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Shen, Zhi-Xiong
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
JITRI, Inst Smart Liquid Crystals, Changshu 215500, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Bisoyi, Hari Krishna
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Wu, Sai-Bo
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
JITRI, Inst Smart Liquid Crystals, Changshu 215500, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Ge, Shi-Jun
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
JITRI, Inst Smart Liquid Crystals, Changshu 215500, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Li, Quan
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Liquid Crystal Inst, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

Lu, Yan-Qing
论文数: 0 引用数: 0
h-index: 0
机构:
Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China Nanjing Univ, Coll Engn & Appl Sci, Key Lab Intelligent Opt Sensing & Manipulat, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[7]
Liquid-crystal lasers
[J].
Coles, Harry
;
Morris, Stephen
.
NATURE PHOTONICS,
2010, 4 (10)
:676-685

Coles, Harry
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cambridge, Ctr Mol Mat Photon & Elect, Elect Engn Div, Dept Engn, Cambridge CB3 0FA, England Univ Cambridge, Ctr Mol Mat Photon & Elect, Elect Engn Div, Dept Engn, Cambridge CB3 0FA, England

Morris, Stephen
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cambridge, Ctr Mol Mat Photon & Elect, Elect Engn Div, Dept Engn, Cambridge CB3 0FA, England Univ Cambridge, Ctr Mol Mat Photon & Elect, Elect Engn Div, Dept Engn, Cambridge CB3 0FA, England
[8]
Dual-frequency liquid crystal gels with submillisecond response time
[J].
Fan, YH
;
Ren, HW
;
Liang, X
;
Lin, YH
;
Wu, ST
.
APPLIED PHYSICS LETTERS,
2004, 85 (13)
:2451-2453

Fan, YH
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA

Ren, HW
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA

Liang, X
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA

Lin, YH
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA

Wu, ST
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA
[9]
Ferroelectric Liquid Crystals: Physics and Applications
[J].
Guo, Qi
;
Yan, Kexin
;
Chigrinov, Vladimir
;
Zhao, Huijie
;
Tribelsky, Michael
.
CRYSTALS,
2019, 9 (09)

Guo, Qi
论文数: 0 引用数: 0
h-index: 0
机构:
Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China
Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China

Yan, Kexin
论文数: 0 引用数: 0
h-index: 0
机构:
Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China

Chigrinov, Vladimir
论文数: 0 引用数: 0
h-index: 0
机构:
Foshan Univ, Sch Phys & Optoelect Engn, Foshan 528325, Guangdong, Peoples R China
HKUST, State Key Lab Adv Displays & Optoelect Technol, Hong Kong, Peoples R China Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China

Zhao, Huijie
论文数: 0 引用数: 0
h-index: 0
机构:
Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China

Tribelsky, Michael
论文数: 0 引用数: 0
h-index: 0
机构:
Moscow MV Lomonosov State Univ, Moscow 119991, Russia
Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Moscow 115409, Russia Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China
[10]
Frequency-Driven Self-Organized Helical Superstructures Loaded with Mesogen-Grafted Silica Nanoparticles
[J].
Gutierrez-Cuevas, Karla G.
;
Wang, Ling
;
Zheng, Zhi-gang
;
Bisoyi, Hari K.
;
Li, Guoqiang
;
Tan, Loon-Seng
;
Vaia, Richard A.
;
Li, Quan
.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,
2016, 55 (42)
:13090-13094

Gutierrez-Cuevas, Karla G.
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Wang, Ling
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Zheng, Zhi-gang
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Bisoyi, Hari K.
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Li, Guoqiang
论文数: 0 引用数: 0
h-index: 0
机构:
Ohio State Univ, Dept Ophthalmol & Visual Sci, Columbus, OH 43212 USA
Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43212 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Tan, Loon-Seng
论文数: 0 引用数: 0
h-index: 0
机构:
Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Vaia, Richard A.
论文数: 0 引用数: 0
h-index: 0
机构:
Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

Li, Quan
论文数: 0 引用数: 0
h-index: 0
机构:
Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA
Kent State Univ, Chem Phys Interdisciplinary Program, Kent, OH 44242 USA Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA