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41 results about "Birthmark" patented technology

A birthmark is a congenital, benign irregularity on the skin which is present at birth or appears shortly after birth, usually in the first month. They can occur anywhere on the skin. Birthmarks are caused by overgrowth of blood vessels, melanocytes, smooth muscle, fat, fibroblasts, or keratinocytes.

Software similarity detection method based on dynamic control flow graph sequence birthmark

ActiveCN108830049AAvoid lack of source codeAvoid the difficult problem of reverse disassemblyProgram/content distribution protectionGraph sequencePlagiarism detection
The invention discloses a software similarity detection method based on dynamic control flow graph sequence birthmark. The method comprises the following steps: firstly assembling a starting address of a basic block in the plug-in program record program execution process and a branch hopping address at the ending of the basic block under a dynamic plug-in platform DynamoRIO; and then analyzing a log file, constructing a program dynamic control flow graph, and endowing the weight; establishing a weight sequence birthmark set WSB, and serving the length ratio of the WSB as parameter to compute the similarity of each pair of programs. By adopting the dynamic plug-in analysis and extracting the feature of the software in operation, the problems that the source code is absent and the reverse disassembling is difficult in the software plagiarism detection can be avoided; only the basic block starting address and the branch hopping condition are recorded in the dynamic plug-in analysis, and the expenditure is less in comparison with the birthmark based on the dynamic data flow tracking and like technology; the influence by unrelated interference information in the dynamic operation can beresisted, and the program similarity can be detected even if the software encrypts by using an encryption shell.
Owner:SICHUAN UNIV +2

Software local plagiarism detection method based on dynamic instruction dependency graph birthmark

ActiveCN108399321ANot easy to confuse and destroyImproved ability to combat deep obfuscationProgram/content distribution protectionDynamic instrumentationPlagiarism detection
The present invention provides a software local plagiarism detection method based on the dynamic instruction dependency graph birthmark. The method comprises: 1) using dynamic instrumentation to perform instruction level monitoring on a to-be-analyzed program, and capturing an instruction trajectory of each function; 2) for a dynamic instruction trajectory recording each function, carrying out data dependency and control dependency analysis, and constructing a dynamic instruction dependency graph birthmark; 3) calculating the similarity between instruction dependency graph birthmarks, and implementing the measure of similarity between functions; 4) based on the given threshold, constructing a list of suspicious functions for each function in the plaintiff program; 5) extracting the staticfunction call graph of the program, and performing precise pairing of the suspicious functions under the guidance of the calling dependency; and 6) based on the calling dependency, assembling matchedfunction pairs to generate a plagiarism evidence map, and measuring the proportion of suspected plagiarism part. According to the method provided by the present invention, local plagiarism detection is implemented by constructing a function-level birthmark; and the concept of a plagiarism evidence map is proposed for the first time, and the effectiveness of the evidence can be greatly enhanced.
Owner:XIAN UNIV OF POSTS & TELECOMM

Anti-reinforcement fast detection method of Android platform cloning application program

The invention discloses an anti-reinforcement fast detection method of an Android platform cloning application program. The method comprises a preprocessing stage and an accurate detection stage. At the preprocessing stage, keywords are extracted from function description of the application program by using the natural language processing technology so as to construct vectors, and suspicious cloning application program pairs with similar functions are quickly searched by using an improved searching method based on a balanced binary tree. At a formal detection stage, the invention provides an application program birthmark that is based on interface layout features and are completely independent from source codes, so that the influence of the reinforcement technology can be effectively defended, and finally the similarity between the suspicious cloning application program pairs can be accurately calculated by using a similarity calculation method based on a tree editing distance. By adoption of the anti-reinforcement fast detection method, the interference of the reinforcement technology can be effectively defended, meanwhile the fast detection of the cloning applications can be achieved, and thus the practicability is very high.
Owner:HUNAN UNIV

Pro-drugs of nsaias with very high skin and membranes penetration rates and their new medicinal uses

ActiveUS20100172960A1Low pharmacologic effectToxic burdenOrganic active ingredientsBiocideDiseaseSolubility
The novel positively charged pro-drugs of NSAIAs in the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” were designed and synthesized. The compounds of the general formulas (1, 2a, 2b, 2c, or 2d) “Structure 1, 2a, 2b, 2c, or 2d” indicated above can be prepared from metal salts, organic base salts, or immobilized base salts of NSAIAs with suitable halide compounds. The positively charged amino groups in the pro-drugs in this invention largely increase the solubility of the drugs in water and will bond to the negative charge on the phosphate head group of membrane. Thus, the local concentration of the outside of the membrane or skin will be very high and will facilitate the passage of these pro-drugs from a region of high concentration to a region of low concentration. This bonding will disturb the membrane a little bit and may make some room for the lipophilic portion of the pro-drug. When the molecules of membrane move, the membrane may “crack” a little bit due to the bonding of the pro-drug. This will let the pro-drug insert into the membrane. At pH 7.4, only about 99% of the amino group is protonated. When the amino group is not protonated, the bonding between the amino group of the pro-drug and the phosphate head group of the membrane will disassociate, and the pro-drug will enter the membrane completely. When the amino group of the pro-drug flips to the other side of the membrane and thus becomes protonated, then the pro-drug is pulled into the cytosol, a semi-liquid concentrated aqueous solution or suspension. These pro-drugs can be used for treating and preventing diabetes (type I or/and type II), abnormal blood glucose and lipid levels, stroke, heart attack, and other heart and vascular diseases Alzheimer's diseases, Parkinson's diseases and other neurodegenerative diseases, psoriasis, discoid lupus erythematosus, systemic lupus erythematosus (SLE), autoimmune hepatitis, multiple sclerosis (MS), and other autoimmune diseases, amyotrophic lateral sclerosis (ALS), oculopharyngeal muscular dystrophy (OPMD), and other muscle disorders, inflamed hemorrhoids, cryptitis, other inflammatory conditions of the anorectum, and pruritus ani, prostatitis, prostatocystitis, varicose veins, autoimmune liver inflammation, autoimmune kidney inflammation, vein inflammation and other inflammations, skin cancers, breast cancer, colon-rectum cancer, oral cancer, and other cancers, scars, abnormal vascular skin lesions, birthmarks, moles (nevi), skin tags, aging spots (liver spots), and other skin disorders. These pro-drugs can be administered transdermally without the help of skin penetration enhancers.
Owner:TECHFIELDS BIOCHEM CO LTD

Ointment paste for eliminating birthmark and preparation method of ointment paste

The invention discloses an ointment paste for eliminating a birthmark and a preparation method of the ointment paste. The ointment paste is prepared from the following raw materials of a Chinese herbextract, an adhesive, a humectant, a cross-linking agent, a filling agent and an appropriate permeation enhancer. The preparation method of the ointment paste for eliminating the birthmark comprises the following steps that S1, various raw materials are well prepared; S2, part of medicinal materials are soaked for 1-2 h by using 75% of ethyl alcohol; S3, then reflux extraction is conducted for 1-2h, and extraction is conducted for 2-3 times; S4, then filter liquid is taken, water is used for reflux extraction of filter residue and other medicinal materials, filter liquid is taken, and filterresidue is abandoned; S5, then the two times of the filter liquid are concentrated; S6, the extractive, the filling agent and the cross-linking agent are mixed to obtain a component 1; S7, the adhesive is mixed with water to serve as a component 2, and the wetting agent and the humectant and the permeation enhancer serve as a component 3; and S8, the three components are mixed and stirred, and then coat on non-woven fabrics, and drying is conducted to obtain the ointment paste.
Owner:江苏博润医疗集团有限公司

Multi-thread program plagiarism detection method based on frequent pattern mining

ActiveCN110532739AObfuscation worksEffective handling of obfuscation meansProgram/content distribution protectionPlagiarism detectionTheoretical computer science
The invention discloses a multi-thread program plagiarism detection method based on frequent pattern mining. The method comprises the following steps: 1) dynamically monitoring to obtain a plurality of execution tracks of a program under the condition of multiple times of execution of the same input; 2) preprocessing the program execution trajectory set to generate a mode candidate set; 3) utilizing a frequent pattern mining algorithm to process the pattern candidate set, generating a frequent pattern set, performing Hash processing, and then constructing a thread perception birthmark; 4) calculating the similarity between the original announcement program birthmarks and the announced program birthmarks under specific input; and 5) making plagiarism judgment and outputting a detection result based on the mean value of the birthmark similarity under the plurality of inputs and a given threshold value. According to the method, the executable program is directly used as an analysis object, and program source codes are not needed; according to the method, frequent pattern mining is utilized to extract a behavior pattern from a plurality of execution tracks corresponding to multiple times of program operation under the same input to generate a thread perception birthmark, so that the interference of thread interleaving uncertainty is greatly reduced.
Owner:XIAN UNIV OF POSTS & TELECOMM
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