id	sid	tid	token	lemma	pos
2r36tx33k9c	1	1	this	this	DET
2r36tx33k9c	1	2	work	work	NOUN
2r36tx33k9c	1	3	documents	document	VERB
2r36tx33k9c	1	4	the	the	DET
2r36tx33k9c	1	5	development	development	NOUN
2r36tx33k9c	1	6	of	of	ADP
2r36tx33k9c	1	7	non	non	ADJ
2r36tx33k9c	1	8	-	-	ADJ
2r36tx33k9c	1	9	intrusive	intrusive	ADJ
2r36tx33k9c	1	10	optical	optical	ADJ
2r36tx33k9c	1	11	diagnostic	diagnostic	ADJ
2r36tx33k9c	1	12	methods	method	NOUN
2r36tx33k9c	1	13	towards	towards	ADP
2r36tx33k9c	1	14	a	a	DET
2r36tx33k9c	1	15	qualitative	qualitative	ADJ
2r36tx33k9c	1	16	study	study	NOUN
2r36tx33k9c	1	17	of	of	ADP
2r36tx33k9c	1	18	ethylene	ethylene	ADJ
2r36tx33k9c	1	19	flame	flame	NOUN
2r36tx33k9c	1	20	dynamics	dynamic	NOUN
2r36tx33k9c	1	21	in	in	ADP
2r36tx33k9c	1	22	a	a	DET
2r36tx33k9c	1	23	laboratory	laboratory	NOUN
2r36tx33k9c	1	24	scale	scale	NOUN
2r36tx33k9c	1	25	model	model	NOUN
2r36tx33k9c	1	26	scramjet	scramjet	NOUN
2r36tx33k9c	1	27	engine	engine	NOUN
2r36tx33k9c	1	28	.	.	PUNCT
2r36tx33k9c	2	1	planar	planar	VERB
2r36tx33k9c	2	2	laser	laser	NOUN
2r36tx33k9c	2	3	rayleigh	rayleigh	NOUN
2r36tx33k9c	2	4	scattering	scattering	NOUN
2r36tx33k9c	2	5	(	(	PUNCT
2r36tx33k9c	2	6	plrs	plrs	NOUN
2r36tx33k9c	2	7	)	)	PUNCT
2r36tx33k9c	2	8	and	and	CCONJ
2r36tx33k9c	2	9	oh	oh	INTJ
2r36tx33k9c	2	10	based	base	VERB
2r36tx33k9c	2	11	planar	planar	NOUN
2r36tx33k9c	2	12	laser	laser	NOUN
2r36tx33k9c	2	13	induced	induce	VERB
2r36tx33k9c	2	14	fluorescence	fluorescence	NOUN
2r36tx33k9c	2	15	(	(	PUNCT
2r36tx33k9c	2	16	plif	plif	ADJ
2r36tx33k9c	2	17	)	)	PUNCT
2r36tx33k9c	2	18	have	have	AUX
2r36tx33k9c	2	19	been	be	AUX
2r36tx33k9c	2	20	successfully	successfully	ADV
2r36tx33k9c	2	21	developed	develop	VERB
2r36tx33k9c	2	22	and	and	CCONJ
2r36tx33k9c	2	23	applied	apply	VERB
2r36tx33k9c	2	24	.	.	PUNCT
2r36tx33k9c	3	1	prior	prior	ADV
2r36tx33k9c	3	2	to	to	ADP
2r36tx33k9c	3	3	understanding	understand	VERB
2r36tx33k9c	3	4	the	the	DET
2r36tx33k9c	3	5	turbulent	turbulent	ADJ
2r36tx33k9c	3	6	flame	flame	NOUN
2r36tx33k9c	3	7	dynamics	dynamic	NOUN
2r36tx33k9c	3	8	due	due	ADP
2r36tx33k9c	3	9	to	to	ADP
2r36tx33k9c	3	10	ethylene	ethylene	NOUN
2r36tx33k9c	3	11	combustion	combustion	NOUN
2r36tx33k9c	3	12	in	in	ADP
2r36tx33k9c	3	13	the	the	DET
2r36tx33k9c	3	14	model	model	NOUN
2r36tx33k9c	3	15	scramjet	scramjet	NOUN
2r36tx33k9c	3	16	,	,	PUNCT
2r36tx33k9c	3	17	it	it	PRON
2r36tx33k9c	3	18	is	be	AUX
2r36tx33k9c	3	19	necessary	necessary	ADJ
2r36tx33k9c	3	20	to	to	PART
2r36tx33k9c	3	21	reveal	reveal	VERB
2r36tx33k9c	3	22	the	the	DET
2r36tx33k9c	3	23	role	role	NOUN
2r36tx33k9c	3	24	played	play	VERB
2r36tx33k9c	3	25	by	by	ADP
2r36tx33k9c	3	26	turbulent	turbulent	ADJ
2r36tx33k9c	3	27	structures	structure	NOUN
2r36tx33k9c	3	28	in	in	ADP
2r36tx33k9c	3	29	a	a	DET
2r36tx33k9c	3	30	combustion	combustion	NOUN
2r36tx33k9c	3	31	free	free	ADJ
2r36tx33k9c	3	32	environment	environment	NOUN
2r36tx33k9c	3	33	.	.	PUNCT
2r36tx33k9c	4	1	also	also	ADV
2r36tx33k9c	4	2	,	,	PUNCT
2r36tx33k9c	4	3	shock/	shock/	NUM
2r36tx33k9c	4	4	turbulent	turbulent	ADJ
2r36tx33k9c	4	5	boundary	boundary	ADJ
2r36tx33k9c	4	6	layers	layer	NOUN
2r36tx33k9c	4	7	are	be	AUX
2r36tx33k9c	4	8	known	know	VERB
2r36tx33k9c	4	9	to	to	PART
2r36tx33k9c	4	10	significantly	significantly	ADV
2r36tx33k9c	4	11	impact	impact	VERB
2r36tx33k9c	4	12	unstart	unstart	ADJ
2r36tx33k9c	4	13	dynamics	dynamic	NOUN
2r36tx33k9c	4	14	.	.	PUNCT
2r36tx33k9c	5	1	hence	hence	ADV
2r36tx33k9c	5	2	,	,	PUNCT
2r36tx33k9c	5	3	plrs	plrs	PROPN
2r36tx33k9c	5	4	has	have	AUX
2r36tx33k9c	5	5	been	be	AUX
2r36tx33k9c	5	6	chosen	choose	VERB
2r36tx33k9c	5	7	to	to	PART
2r36tx33k9c	5	8	be	be	AUX
2r36tx33k9c	5	9	employed	employ	VERB
2r36tx33k9c	5	10	considering	consider	VERB
2r36tx33k9c	5	11	its	its	PRON
2r36tx33k9c	5	12	relevancy	relevancy	NOUN
2r36tx33k9c	5	13	to	to	ADP
2r36tx33k9c	5	14	the	the	DET
2r36tx33k9c	5	15	present	present	ADJ
2r36tx33k9c	5	16	experimental	experimental	ADJ
2r36tx33k9c	5	17	subject	subject	NOUN
2r36tx33k9c	5	18	.	.	PUNCT
2r36tx33k9c	6	1	visualizing	visualize	VERB
2r36tx33k9c	6	2	flow	flow	NOUN
2r36tx33k9c	6	3	structures	structure	NOUN
2r36tx33k9c	6	4	in	in	ADP
2r36tx33k9c	6	5	a	a	DET
2r36tx33k9c	6	6	transient	transient	ADJ
2r36tx33k9c	6	7	combustion	combustion	NOUN
2r36tx33k9c	6	8	system	system	NOUN
2r36tx33k9c	6	9	is	be	AUX
2r36tx33k9c	6	10	a	a	DET
2r36tx33k9c	6	11	key	key	NOUN
2r36tx33k9c	6	12	to	to	PART
2r36tx33k9c	6	13	establish	establish	VERB
2r36tx33k9c	6	14	stable	stable	ADJ
2r36tx33k9c	6	15	operational	operational	ADJ
2r36tx33k9c	6	16	regimes	regime	NOUN
2r36tx33k9c	6	17	.	.	PUNCT
2r36tx33k9c	7	1	imaging	image	VERB
2r36tx33k9c	7	2	ground	ground	NOUN
2r36tx33k9c	7	3	state	state	NOUN
2r36tx33k9c	8	1	oh	oh	INTJ
2r36tx33k9c	8	2	is	be	AUX
2r36tx33k9c	8	3	a	a	DET
2r36tx33k9c	8	4	proven	prove	VERB
2r36tx33k9c	8	5	,	,	PUNCT
2r36tx33k9c	8	6	simple	simple	ADJ
2r36tx33k9c	8	7	and	and	CCONJ
2r36tx33k9c	8	8	cost	cost	VERB
2r36tx33k9c	8	9	effective	effective	ADJ
2r36tx33k9c	8	10	method	method	NOUN
2r36tx33k9c	8	11	amongst	amongst	ADP
2r36tx33k9c	8	12	the	the	DET
2r36tx33k9c	8	13	lif	lif	ADJ
2r36tx33k9c	8	14	based	base	VERB
2r36tx33k9c	8	15	techniques	technique	NOUN
2r36tx33k9c	8	16	.	.	PUNCT
2r36tx33k9c	9	1	in	in	ADP
2r36tx33k9c	9	2	addition	addition	NOUN
2r36tx33k9c	9	3	,	,	PUNCT
2r36tx33k9c	9	4	these	these	DET
2r36tx33k9c	9	5	laser	laser	NOUN
2r36tx33k9c	9	6	based	base	VERB
2r36tx33k9c	9	7	techniques	technique	NOUN
2r36tx33k9c	9	8	are	be	AUX
2r36tx33k9c	9	9	instantaneous	instantaneous	ADJ
2r36tx33k9c	9	10	in	in	ADP
2r36tx33k9c	9	11	nature	nature	NOUN
2r36tx33k9c	9	12	with	with	ADP
2r36tx33k9c	9	13	temporal	temporal	ADJ
2r36tx33k9c	9	14	resolution	resolution	NOUN
2r36tx33k9c	9	15	as	as	ADV
2r36tx33k9c	9	16	high	high	ADJ
2r36tx33k9c	9	17	as	as	ADP
2r36tx33k9c	9	18	10ns	10ns	PROPN
2r36tx33k9c	9	19	.	.	PUNCT
2r36tx33k9c	10	1	flow	flow	NOUN
2r36tx33k9c	10	2	physics	physics	NOUN
2r36tx33k9c	10	3	in	in	ADP
2r36tx33k9c	10	4	the	the	DET
2r36tx33k9c	10	5	scramjet	scramjet	NOUN
2r36tx33k9c	10	6	model	model	NOUN
2r36tx33k9c	10	7	is	be	AUX
2r36tx33k9c	10	8	complicated	complicate	VERB
2r36tx33k9c	10	9	due	due	ADP
2r36tx33k9c	10	10	to	to	ADP
2r36tx33k9c	10	11	the	the	DET
2r36tx33k9c	10	12	interaction	interaction	NOUN
2r36tx33k9c	10	13	of	of	ADP
2r36tx33k9c	10	14	turbulence	turbulence	NOUN
2r36tx33k9c	10	15	and	and	CCONJ
2r36tx33k9c	10	16	flame	flame	ADJ
2r36tx33k9c	10	17	structures	structure	NOUN
2r36tx33k9c	10	18	.	.	PUNCT
2r36tx33k9c	11	1	high	high	ADJ
2r36tx33k9c	11	2	intensities	intensity	NOUN
2r36tx33k9c	11	3	of	of	ADP
2r36tx33k9c	11	4	turbulence	turbulence	NOUN
2r36tx33k9c	11	5	are	be	AUX
2r36tx33k9c	11	6	expected	expect	VERB
2r36tx33k9c	11	7	at	at	ADP
2r36tx33k9c	11	8	such	such	ADJ
2r36tx33k9c	11	9	high	high	ADJ
2r36tx33k9c	11	10	reynolds	reynold	NOUN
2r36tx33k9c	11	11	number	number	NOUN
2r36tx33k9c	11	12	flows	flow	NOUN
2r36tx33k9c	11	13	involving	involve	VERB
2r36tx33k9c	11	14	combustion	combustion	NOUN
2r36tx33k9c	11	15	.	.	PUNCT
2r36tx33k9c	12	1	the	the	DET
2r36tx33k9c	12	2	high	high	ADJ
2r36tx33k9c	12	3	strain	strain	NOUN
2r36tx33k9c	12	4	rates	rate	NOUN
2r36tx33k9c	12	5	imposed	impose	VERB
2r36tx33k9c	12	6	by	by	ADP
2r36tx33k9c	12	7	turbulent	turbulent	ADJ
2r36tx33k9c	12	8	structures	structure	NOUN
2r36tx33k9c	12	9	might	might	AUX
2r36tx33k9c	12	10	,	,	PUNCT
2r36tx33k9c	12	11	in	in	ADP
2r36tx33k9c	12	12	fact	fact	NOUN
2r36tx33k9c	12	13	,	,	PUNCT
2r36tx33k9c	12	14	contribute	contribute	VERB
2r36tx33k9c	12	15	to	to	ADP
2r36tx33k9c	12	16	flame	flame	ADJ
2r36tx33k9c	12	17	extinguishment	extinguishment	NOUN
2r36tx33k9c	12	18	.	.	PUNCT
2r36tx33k9c	13	1	in	in	ADP
2r36tx33k9c	13	2	view	view	NOUN
2r36tx33k9c	13	3	of	of	ADP
2r36tx33k9c	13	4	turbulence	turbulence	NOUN
2r36tx33k9c	13	5	being	be	AUX
2r36tx33k9c	13	6	a	a	DET
2r36tx33k9c	13	7	3	3	NUM
2r36tx33k9c	13	8	-	-	PUNCT
2r36tx33k9c	13	9	dimensional	dimensional	ADJ
2r36tx33k9c	13	10	phenomena	phenomena	NOUN
2r36tx33k9c	13	11	,	,	PUNCT
2r36tx33k9c	13	12	there	there	PRON
2r36tx33k9c	13	13	exists	exist	VERB
2r36tx33k9c	13	14	a	a	DET
2r36tx33k9c	13	15	need	need	NOUN
2r36tx33k9c	13	16	to	to	PART
2r36tx33k9c	13	17	visualize	visualize	VERB
2r36tx33k9c	13	18	the	the	DET
2r36tx33k9c	13	19	flow	flow	NOUN
2r36tx33k9c	13	20	profile	profile	NOUN
2r36tx33k9c	13	21	in	in	ADP
2r36tx33k9c	13	22	a	a	DET
2r36tx33k9c	13	23	3	3	NUM
2r36tx33k9c	13	24	-	-	PUNCT
2r36tx33k9c	13	25	dimensional	dimensional	ADJ
2r36tx33k9c	13	26	domain	domain	NOUN
2r36tx33k9c	13	27	.	.	PUNCT
2r36tx33k9c	14	1	however	however	ADV
2r36tx33k9c	14	2	,	,	PUNCT
2r36tx33k9c	14	3	a	a	DET
2r36tx33k9c	14	4	truly	truly	ADV
2r36tx33k9c	14	5	3	3	NUM
2r36tx33k9c	14	6	-	-	PUNCT
2r36tx33k9c	14	7	dimensional	dimensional	ADJ
2r36tx33k9c	14	8	study	study	NOUN
2r36tx33k9c	14	9	is	be	AUX
2r36tx33k9c	14	10	beyond	beyond	ADP
2r36tx33k9c	14	11	the	the	DET
2r36tx33k9c	14	12	scope	scope	NOUN
2r36tx33k9c	14	13	of	of	ADP
2r36tx33k9c	14	14	current	current	ADJ
2r36tx33k9c	14	15	research	research	NOUN
2r36tx33k9c	14	16	methods	method	NOUN
2r36tx33k9c	14	17	.	.	PUNCT
2r36tx33k9c	15	1	a	a	DET
2r36tx33k9c	15	2	closer	close	ADJ
2r36tx33k9c	15	3	and	and	CCONJ
2r36tx33k9c	15	4	more	more	ADV
2r36tx33k9c	15	5	accessible	accessible	ADJ
2r36tx33k9c	15	6	alternative	alternative	NOUN
2r36tx33k9c	15	7	would	would	AUX
2r36tx33k9c	15	8	be	be	AUX
2r36tx33k9c	15	9	to	to	PART
2r36tx33k9c	15	10	apply	apply	VERB
2r36tx33k9c	15	11	2	2	NUM
2r36tx33k9c	15	12	-	-	PUNCT
2r36tx33k9c	15	13	dimensional	dimensional	ADJ
2r36tx33k9c	15	14	flow	flow	NOUN
2r36tx33k9c	15	15	imaging	image	VERB
2r36tx33k9c	15	16	techniques	technique	NOUN
2r36tx33k9c	15	17	spanning	span	VERB
2r36tx33k9c	15	18	over	over	ADP
2r36tx33k9c	15	19	multiple	multiple	ADJ
2r36tx33k9c	15	20	planes	plane	NOUN
2r36tx33k9c	15	21	,	,	PUNCT
2r36tx33k9c	15	22	provided	provide	VERB
2r36tx33k9c	15	23	that	that	SCONJ
2r36tx33k9c	15	24	the	the	DET
2r36tx33k9c	15	25	flow	flow	NOUN
2r36tx33k9c	15	26	shows	show	VERB
2r36tx33k9c	15	27	a	a	DET
2r36tx33k9c	15	28	quasi	quasi	ADJ
2r36tx33k9c	15	29	-	-	ADJ
2r36tx33k9c	15	30	stable	stable	ADJ
2r36tx33k9c	15	31	behavior	behavior	NOUN
2r36tx33k9c	15	32	.	.	PUNCT
2r36tx33k9c	16	1	although	although	SCONJ
2r36tx33k9c	16	2	optical	optical	ADJ
2r36tx33k9c	16	3	investigations	investigation	NOUN
2r36tx33k9c	16	4	in	in	ADP
2r36tx33k9c	16	5	the	the	DET
2r36tx33k9c	16	6	combustor	combustor	NOUN
2r36tx33k9c	16	7	regions	region	NOUN
2r36tx33k9c	16	8	have	have	AUX
2r36tx33k9c	16	9	been	be	AUX
2r36tx33k9c	16	10	reported	report	VERB
2r36tx33k9c	16	11	[	[	PUNCT
2r36tx33k9c	16	12	18	18	NUM
2r36tx33k9c	16	13	]	]	PUNCT
2r36tx33k9c	16	14	,	,	PUNCT
2r36tx33k9c	16	15	this	this	DET
2r36tx33k9c	16	16	study	study	NOUN
2r36tx33k9c	16	17	,	,	PUNCT
2r36tx33k9c	16	18	to	to	ADP
2r36tx33k9c	16	19	the	the	DET
2r36tx33k9c	16	20	best	good	ADJ
2r36tx33k9c	16	21	of	of	ADP
2r36tx33k9c	16	22	the	the	DET
2r36tx33k9c	16	23	author	author	NOUN
2r36tx33k9c	16	24	's	's	PART
2r36tx33k9c	16	25	knowledge	knowledge	NOUN
2r36tx33k9c	16	26	,	,	PUNCT
2r36tx33k9c	16	27	is	be	AUX
2r36tx33k9c	16	28	the	the	DET
2r36tx33k9c	16	29	first	first	ADJ
2r36tx33k9c	16	30	one	one	NUM
2r36tx33k9c	16	31	to	to	PART
2r36tx33k9c	16	32	cater	cater	VERB
2r36tx33k9c	16	33	to	to	ADP
2r36tx33k9c	16	34	the	the	DET
2r36tx33k9c	16	35	flow	flow	NOUN
2r36tx33k9c	16	36	field	field	NOUN
2r36tx33k9c	16	37	investigation	investigation	NOUN
2r36tx33k9c	16	38	over	over	ADP
2r36tx33k9c	16	39	a	a	DET
2r36tx33k9c	16	40	significant	significant	ADJ
2r36tx33k9c	16	41	region	region	NOUN
2r36tx33k9c	16	42	beyond	beyond	ADP
2r36tx33k9c	16	43	the	the	DET
2r36tx33k9c	16	44	combustor	combustor	NOUN
2r36tx33k9c	16	45	/	/	SYM
2r36tx33k9c	16	46	cavity	cavity	NOUN
2r36tx33k9c	16	47	.	.	PUNCT
2r36tx33k9c	17	1	furthermore	furthermore	ADV
2r36tx33k9c	17	2	,	,	PUNCT
2r36tx33k9c	17	3	the	the	DET
2r36tx33k9c	17	4	study	study	NOUN
2r36tx33k9c	17	5	encompasses	encompass	VERB
2r36tx33k9c	17	6	multiple	multiple	ADJ
2r36tx33k9c	17	7	planes	plane	NOUN
2r36tx33k9c	17	8	to	to	PART
2r36tx33k9c	17	9	achieve	achieve	VERB
2r36tx33k9c	17	10	a	a	DET
2r36tx33k9c	17	11	holistic	holistic	ADJ
2r36tx33k9c	17	12	reconstruction	reconstruction	NOUN
2r36tx33k9c	17	13	of	of	ADP
2r36tx33k9c	17	14	the	the	DET
2r36tx33k9c	17	15	flow	flow	NOUN
2r36tx33k9c	17	16	physics	physic	NOUN
2r36tx33k9c	17	17	.	.	PUNCT
2r36tx33k9c	18	1	a	a	DET
2r36tx33k9c	18	2	unique	unique	ADJ
2r36tx33k9c	18	3	optical	optical	ADJ
2r36tx33k9c	18	4	arrangement	arrangement	NOUN
2r36tx33k9c	18	5	to	to	PART
2r36tx33k9c	18	6	aid	aid	VERB
2r36tx33k9c	18	7	such	such	DET
2r36tx33k9c	18	8	a	a	DET
2r36tx33k9c	18	9	visualization	visualization	NOUN
2r36tx33k9c	18	10	has	have	AUX
2r36tx33k9c	18	11	been	be	AUX
2r36tx33k9c	18	12	developed	develop	VERB
2r36tx33k9c	18	13	.	.	PUNCT
2r36tx33k9c	19	1	the	the	DET
2r36tx33k9c	19	2	results	result	NOUN
2r36tx33k9c	19	3	obtained	obtain	VERB
2r36tx33k9c	19	4	provide	provide	VERB
2r36tx33k9c	19	5	supportive	supportive	ADJ
2r36tx33k9c	19	6	evidence	evidence	NOUN
2r36tx33k9c	19	7	underlining	underline	VERB
2r36tx33k9c	19	8	the	the	DET
2r36tx33k9c	19	9	applicability	applicability	NOUN
2r36tx33k9c	19	10	of	of	ADP
2r36tx33k9c	19	11	these	these	DET
2r36tx33k9c	19	12	laser	laser	NOUN
2r36tx33k9c	19	13	based	base	VERB
2r36tx33k9c	19	14	techniques	technique	NOUN
2r36tx33k9c	19	15	to	to	ADP
2r36tx33k9c	19	16	the	the	DET
2r36tx33k9c	19	17	present	present	ADJ
2r36tx33k9c	19	18	combustion	combustion	NOUN
2r36tx33k9c	19	19	system	system	NOUN
2r36tx33k9c	19	20	.	.	PUNCT