0

các kĩ thuật giấu tin

Xây dựng chương trình GIẤU TIN TRONG ẢNH BITMAP 24 BIT VÀ ỨNG DỤNG

Xây dựng chương trình GIẤU TIN TRONG ẢNH BITMAP 24 BIT VÀ ỨNG DỤNG

Công nghệ thông tin

... Hải-CNPMK5 Giấu Tin Trong Ảnh CHƯƠNG 1: TỔNG QUAN VỀ GIẤU TIN 1.1 Mô hình giấu tin Để thực giấu tin cần xây dựng thủ tục giấu tin Các thủ tục sẽ thực nhúng thông tin cần giấu vào ... giấu tin Theo sơ đồ này, giấu tin chia thành hai hướng giấu tin mật thủy vân số .Giấu tin mật quan tâm chủ yếu đến lượng tin giấu, còn thủy vân số quan tâm đến tính bền vững thông tin giấu ... thông tin giấu, sư dụng thủ tục giải mã cùng với khóa dùng trình giấu để lấy lại thông tin Hình 1: Mô hình giấu tin lấy tin Nguyễn Hồng Hải-CNPMK5 Giấu Tin Trong Ảnh 1.2 Các kĩ...
  • 20
  • 966
  • 0
báo cáo hóa học:

báo cáo hóa học: " A new measurement method for spine reposition sense" ppt

Hóa học - Dầu khí

... were instructed before testing not to perform any unaccustomed strenuous physical activity for 24 hours before testing and to not eat or drink two hours prior to testing to minimize cutaneous ... blindfolded throughout testing Examiner two read a set of standardized instructions to each subject Subjects were instructed that the upright starting posture included sitting up straight with their ... During testing, visual input was eliminated by blindfolding the subjects and auditory input was limited by keeping the room silent [1,11,22,40,41] Cutaneous input was minimized by instructing females...
  • 11
  • 748
  • 0
báo cáo hóa học:

báo cáo hóa học:" Research Article Strong Convergence of a New Iterative Method for Infinite Family of Generalized Equilibrium and Fixed-Point Problems of Nonexpansive Mappings in Hilbert Spaces" pptx

Hóa học - Dầu khí

... − t x, y ≤ G x, y ; lim G tz t↓0 2.12 A4 For each x ∈ C, y → G x, y is convex and lower semicontinuous For x ∈ H and r > 0, define a mapping Tr : H → C by Tr x y − z, z − x ≥ 0, ∀y ∈ C r z ∈ ... the condition E1 , we may assume, without loss of generality, that n < − δn B A −1 for all n ≥ Noting that A and B are both the linear bounded self-adjoint operators, one has A sup{| Ax, x | : ... I − ri Ai is nonexpansive for each i ≥ Therefore, Tri I − ri Ai is nonexpansive for each i ≥ Noting that {αn } is strictly decreasing, α0 1, we have zn − p n αn xn − p αi−1 − αi Tri I − ri Ai...
  • 24
  • 398
  • 0
Báo cáo hóa học:

Báo cáo hóa học: " Research Article A New Iterative Method for Solving Equilibrium Problems and Fixed Point Problems for Infinite Family of Nonexpansive Mappings" pptx

Hóa học - Dầu khí

... C, limΦ tz − t x, y ≤ Φ x, y ; t↓0 1.2 A4 For each x ∈ C, y → Φ x, y is convex and lower semicontinuous Let S : C → H be a nonexpansive mapping with Fix S ∩ EP Φ / ∅, where Fix S denotes the set ... above that Fix Tri i argument, we conclude that x∈Ω ∞ Fix Tn ∩ EP Φ1 ∩ · · · ∩ EP Φm 3.33 n Noting that x∗ is a solution of the VI F, Ω , we obtain lim sup −F x∗ , xn − x∗ n→∞ −F x∗ , x − x∗ ... set of solutions: h1 x , h2 x , 4.1 x ∈ C, where h1 x and h2 x are both convex and lower semicontinuous functions defined on a nonempty closed and convex subset of C of a Hilbert space H We denote...
  • 18
  • 406
  • 0
Báo cáo hóa học:

Báo cáo hóa học: " Research Article A New Approximation Method for Solving Variational Inequalities and Fixed Points of Nonexpansive Mappings" docx

Hóa học - Dầu khí

... a β-inverse-strongly monotone mapping of C to H, then it is obvious that B is 1/β -Lipschitz continuous In 2000, Moudafi introduced the viscosity approximation method for nonexpansive mapping and ... q ∈ F S ∩ B −1 0, such that γf − A q, p − q ≤ Proof We have B−1 result Taking A V I H, B So putting PH I and γ ∀p ∈ F S ∩ B −1 4.13 I, by Theorem 3.1, we obtain the desired in Theorem 4.3, we ... “Weak convergence of the sequence of successive approximations for nonexpansive mappings,” Bulletin of the American Mathematical Society, vol 73, pp 591–597, 1967 R T Rockafellar, “On the maximality...
  • 16
  • 268
  • 0
A new numerical method for rotating systems in engineering analysis and design

A new numerical method for rotating systems in engineering analysis and design

Tổng hợp

... Supported Rotating speed profile for the disk Radial and circumferential displacement profile for the free rotating disk Transverse displacement profile for rotating disk subjected to rotating uniform ... stiffness Normal and tangential load acting in the in-plane direction Speed and acceleration of rotation ρ ro4 h Ω Ω Dimensionless rotating speed Ω∗ Dimensionless rotating speed (in-plane) Ωro D ρ E ... higher rotating speed allow higher data access rates in disk drives The dynamic behavior of the rotating systems needs to be studied accurately and account for the effects of high rotating speeds...
  • 121
  • 451
  • 0
Tài liệu Báo cáo khoa học: A facile method for expression and purification of the Alzheimer’s disease-associated amyloid b-peptide pdf

Tài liệu Báo cáo khoa học: A facile method for expression and purification of the Alzheimer’s disease-associated amyloid b-peptide pdf

Báo cáo khoa học

... assemblies could help in the design of new therapeutic strategies targeted at preventing the formation or ameliorating the activity of toxic Ab assemblies Although much progress has been made since ... very close correspondence with the expected composition, indicating that the peptide is of the correct sequence and free of contaminating proteins Five cycles of N-terminal sequencing confirmed the ... peak shapes for Ab(1–42) and Ab(M1–42) were similar to each other, but were distinct from those of the peptides terminating at Val40 The more hydrophobic peptides ending at Ala42 were retained on...
  • 16
  • 691
  • 0
Tài liệu UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 2. ONLINE COMMUNITIES FOR DEVELOPMENTNOTE ppt

Tài liệu UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 2. ONLINE COMMUNITIES FOR DEVELOPMENTNOTE ppt

Cơ sở dữ liệu

... advance our development work? Getting information is good, but meeting our goals and creating change is better! Fast forward months and Trupti is now an active, contributing member to one online community, ... Involved •Read postings on a regular basis •Contribute when there is something of particular interest •“Lurk” the rest of the time (Lurking: reading but not posting) Very Involved •Read postings and ... participants • Communities can help people: identifying issues, informing and educating, communicating and activating for action, measuring and revising advocacy actions If you want to know more…...
  • 12
  • 327
  • 0
UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 3. KEY FACTORS FOR A SUCCESSFUL ONLINE COMMUNITYNOTE pptx

UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 3. KEY FACTORS FOR A SUCCESSFUL ONLINE COMMUNITYNOTE pptx

Cơ sở dữ liệu

... around telling more about themselves or creating online directories where pictures and biographies are posted • Language How much time you spend supporting identity and the development of relationships ... of the key distinctions in tools is if you need interactivity or not: • Delivery of information with no feedback or changes does not require interaction; on the contrary • Creating new ideas, ... Communities of Practice that focus on skills for designing and facilitating online communities These are a great place to learn about supporting an online community You can also contribute back the lessons...
  • 12
  • 346
  • 1
UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 4. ELECTRONIC NETWORKING IN COMMUNICATION FOR DEVELOPMENTNOTE pptx

UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 4. ELECTRONIC NETWORKING IN COMMUNICATION FOR DEVELOPMENTNOTE pptx

Cơ sở dữ liệu

... have studied peoples’ behaviour have two distinct schools of thought regarding peoples’ Sociologists who have studied peoples’ behaviour have two distinct schools of thought regarding peoples’ ... communicate and use information Without incorporating this understanding, programmes are likely to fail • Collaboration among agencies supporting traditional media and new ICTs can achieve important ... focused on ICTs for rural and agricultural development Building on existing technical and organizational systems before attempting to create new ones – in other words, how can the efficient use...
  • 20
  • 272
  • 0
Báo cáo hóa học:

Báo cáo hóa học: " Strong convergence theorems for equilibrium problems and fixed point problems: A new iterative method, some comments and applications" pptx

Hóa học - Dầu khí

... equally and significantly in writing this paper Both authors read and approved the final manuscript Competing interests The authors declare that they have no competing interests Received: April ... then the sequences {xn} converge strongly n→∞ n→∞ to an element c = PΩg(c) Î F (S) As some interesting and important applications of Theorem 2.1 for optimization problems and fixed point problems, ... hi (x), x∈K i ∈ {1, 2, , k}, (OP) where hi(x), i Î {1, 2, , k}, are convex and lower semi-continuous functions defined on a closed convex subset K of a Hilbert space H (for example, hi(x) =...
  • 15
  • 427
  • 0
Reactive oxygen species mediated regulation of the na+ h+ exchanger, NHE 1 gene expression a new mechanism for tumor cells resistance to apoptotic cell death

Reactive oxygen species mediated regulation of the na+ h+ exchanger, NHE 1 gene expression a new mechanism for tumor cells resistance to apoptotic cell death

Cao đẳng - Đại học

... there are conflicting reports concerning whether tumorigenic transformation follows intracellular alkalinization or vice versa Interestingly, there is increasing evidence suggesting that alkalinization ... distinct genetically controlled process The execution of apoptosis is characterized by a chain of both morphological and biochemical events These include mitochondrial depolarization, chromatin ... death by preventing the release of mitochondrial contents into cytosol On the other hand, pro-apoptotic members of Bcl-2 family like Bad and Bax, play an important role in facilitating apoptosis...
  • 155
  • 399
  • 0
A NEW CLASSIFICATION SYSTEM FOR URBAN STORMWATER POLLUTANT LOADING: A CASE STUDY IN THE SANTA MONICA BAY AREA

A NEW CLASSIFICATION SYSTEM FOR URBAN STORMWATER POLLUTANT LOADING: A CASE STUDY IN THE SANTA MONICA BAY AREA

Môi trường

... were not developed for stormwater management purposes, which causes errors when used for estimating stormwater pollution Recent studies have developed land use estimated from remote sensing data ... Runoff Program (EPA, 1983) did not find significant differences among land uses, but studies accounting for regional differences did observe significant differences For example, Stenstrom et al (1984) ... emissions in the Santa Monica Bay Watershed This new classification system will be compared to the existing USGS classification system In order to estimate stormwater pollutant emissions, we propose...
  • 7
  • 575
  • 0
a new measurement scale for employee engagement

a new measurement scale for employee engagement

Quản trị kinh doanh

... were perceived as distinct from the other constructs The sample consisted of fifty-nine MBA students at a large southeastern university An extended matrix ofrespondent ratings was created for ... 1999; Schriesheim et al, 1993) Fourrows of data were generated for each respondent representing their rating for each item on each ofthe three constructs being compared and a fourth category of ... reversescored, a distinct commonality did not exist among the three items composing the second factor Researchers have documented cases where reverse-scored itemsintroduce systematic errorresulting in an...
  • 7
  • 378
  • 1
A monte carlo method for multi area generation system reliability assessment

A monte carlo method for multi area generation system reliability assessment

Tài liệu khác

... of supporting and supported areas In the supporting set, the available area generation capacity is larger than the area load A "generator variable" is defined for each area in the supporting set ... loads, area load uncertainty or no load uncertainty and generating unit derated states or derating-adjusted two-state models of generating units, their ranking orders in these cases are basically ... linear programming model such as that described is that variable supporting policies can be easily incorporated Four supporting policies of priority order, priority order plus path order, shortest...
  • 6
  • 367
  • 0
A novel interval method for validating state enclosures of the

A novel interval method for validating state enclosures of the

Báo cáo khoa học

... (11) Setting [R (t)] and R (t) to zero and sorting for identical powers ˙ of ε on both sides of the expression, a set of ODEs for yapp, j (t) with the dimension m · n is obtained after setting the ... [R (t)] the interval enclosure of the unknown error terms Substituting the enclosure [xencl (t)] for [B] in (5) and differentiating with respect to time on ˙ both sides of (5) as well as solving ... different control strategies, e.g for the transient behavior after setting a system into operation, for control near steady state operating conditions, and for shut down Often, switching points themselves...
  • 12
  • 373
  • 0
Tài liệu Báo cáo khoa học:

Tài liệu Báo cáo khoa học: "A Kernel PCA Method for Superior Word Sense Disambiguation" ppt

Báo cáo khoa học

... 2: A tiny corpus for the target word “art”, adapted from the Senseval-2 English lexical sample corpus (Kilgarriff 2001), together with a tiny example set of features The training and testing ... each feature, as shown in Table Extracting nonlinear principal components for the vectors in this simple corpus results in nonlinear generalization, reflecting an implicit consideration of combinations ... unwarranted malpractice litigation Countless books and classes teach the art of asserting oneself Pop art is an example TESTING x9 In the world of design arts particularly, this led to appointments made...
  • 8
  • 520
  • 0
Tài liệu Báo cáo khoa học:

Tài liệu Báo cáo khoa học: "A Pattern Matching Method for Finding Noun and Proper Noun Translations from Noisy Parallel Corpora" doc

Báo cáo khoa học

... extracting bilingual lexicons cannot apply To make matters worse, the corpus might contain chunks of texts which appear in one language but not in its translation 1, suggesting a discontinuous ... words occurred only once We carried out two sets of evaluations, first counting only the best matched pairs, then counting top three Chinese translations for an English word The top N candidate ... for aligning sentences in bilingual corpora Computational Linguistics, 19(1):75-102 KAY, MARTIN ~; MARTIN ROSCHEISEN 1993 TextTranslation alignment Computational Linguistics, 19(1):121-142 KUMANO,...
  • 8
  • 426
  • 0
Tài liệu UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 1. WHY YOU SHOULD USE THIS MODULENOTE docx

Tài liệu UNIT 1. ONLINE COMMUNITIES: A NEW OPPORTUNITY LESSON 1. WHY YOU SHOULD USE THIS MODULENOTE docx

Cơ sở dữ liệu

... of Practice E-learning E-learning Community Community Online events Online events and Meetings and Meetings Would you like to know more about Communities of practice? See a mini-lesson on this ... Why you should use this module - page Shared interests Online events Online events and Meetings and Meetings Online events, like offline events, can provide a focal point for an online migration, ... communities which, although distributed, support specific goals such as preventing AIDS in rural communities or perfecting a new drought-resistant crop variety… Online Communities: a new opportunity...
  • 21
  • 402
  • 0
A NEW CAR PLAN FOR A GREENER FUTURE doc

A NEW CAR PLAN FOR A GREENER FUTURE doc

Kĩ thuật Viễn thông

... Innovation Fund will give Australia a head-start in the race for green-collar jobs by getting people working on carbon-cutting and fuel-saving technologies right now As demand for these technologies grows, ... It must continue to innovate The government will establish an Automotive Industry Innovation Council to keep the sector informed, to develop and disseminate new ideas, and to drive continuous improvement ... to households and the planet in the years to come, we can also make immediate gains by exploiting existing technologies With this in mind, the $1,000 grant available under the LPG Vehicle Scheme...
  • 30
  • 491
  • 0

Xem thêm