Abstract: A lifting/lowering underframe and a load-bearing device having same. The lifting/lowering underframe comprises a lifting/lowering mechanism (2) which comprises a first lifting/lowering frame (21), a second lifting/lowering frame (22) and a driving member (23). The two ends of the driving member (23) are connected to the first lifting/lowering frame (21) and the second lifting/lowering frame (22) respectively; the driving member (23) is an electric push rod, and the driving member (23) kept between the first lifting/lowering frame (21) and the second lifting/lowering frame (22) can electrically drive the first lifting/lowering frame (21) and the second lifting/lowering frame (22) to move relative to each other. The lifting/lowering mechanism (2) is easy to maintain, has low noise and can work normally in high/low temperature and anticorrosion/explosion-proof harsh environments.

Abstract: A method and device for publishing promotion contents and computer storage medium are described. The compatibility of the promotion content publishing method can be enhanced and an accurate delivery of the promotion content can be achieved. In the method, a description file is issued to the client. The client then downloads promotion content suitable for its own operation system platform and device according to the description file. Thus the method can be used in different platforms and devices including iOS, Android, WinCE, S60v3, S60v5 and etc. The server can identify the platform of the client, the type of the device and the function opened on the client, thus an accurate delivery of promotion content to specific type of client can be achieved.

Abstract: A method and apparatus for adding friend are described. The method includes: scanning to acquire a two-dimension code shared by a two-dimension code sharing user; parsing the two-dimension code to obtain a responsive user identifier; judging a relationship between the user identifier and a user identifier of the two-dimension code sharing user; and if the relationship is a stranger relationship, entering a friend adding interface and adding the two-dimension code sharing user as a friend. The present method is capable of avoiding leakage of user information.

Abstract: A method and apparatus for adding friend are described. The method includes: scanning to acquire a two-dimension code shared by a two-dimension code sharing user; parsing the two-dimension code to obtain a responsive user identifier; judging a relationship between the user identifier and a user identifier of the two-dimension code sharing user; and if the relationship is a stranger relationship, entering a friend adding interface and adding the two-dimension code sharing user as a friend. The present method is capable of avoiding leakage of user information.

Abstract: When location information and a user Identification (ID) is received from a client terminal device of a user X, a grid Y, to which the location information belongs, is determined. The user ID and the location information of the user X is stored in a list of the grid Y. The grid Y is in a grid array obtained by dividing a surface of the earth into the grids and areas of the grids are the same. Users in the grid Y and other grids are searched. The grid Y and the other grids form an N-grid and the grid Y is a center of the N-grid. The users are ranked in an ascending order of distances between the users and the user X. The ranked user IDs and distances between the users and the user X are sent to the client terminal device of the user X.

Abstract: A method and device for publishing promotion contents and computer storage medium are described. The compatibility of the promotion content publishing method can be enhanced and an accurate delivery of the promotion content can be achieved. In the method, a description file is issued to the client. The client then downloads promotion content suitable for its own operation system platform and device according to the description file. Thus the method can be used in different platforms and devices including iOS, Android, WinCE, S60v3, S60v5 and etc. The server can identify the platform of the client, the type of the device and the function opened on the client, thus an accurate delivery of promotion content to specific type of client can be achieved.

Abstract: When location information and a user Identification (ID) is received from a client terminal device of a user X, a grid Y, to which the location information belongs, is determined. The user ID and the location information of the user X is stored in a list of the grid Y. The grid Y is in a grid array obtained by dividing a surface of the earth into the grids and areas of the grids are the same. Users in the grid Y and other grids are searched. The grid Y and the other grids form an N-grid and the grid Y is a center of the N-grid. The users are ranked in an ascending order of distances between the users and the user X. The ranked user IDs and distances between the users and the user X are sent to the client terminal device of the user X.

Abstract: A method for digitally signing an electronic document is disclosed. The method includes generating an electronic document to be signed and notifying an authorized signer to sign the electronic document. The method includes validating if the user is the authorized signer for the electronic document by comparing the received identification and the password with a digital certificate of the authorized signer stored in a database. Additionally, the method includes obtaining an image including a digital signature of the authorized signer from a database and resizing the image and inserting the resized image into the signature area of the electronic document if the user is the authorized signer.

Abstract: A system for digitally signing electronic documents is disclosed. The system includes a mobile device, an application server and a database, the mobile device includes a requesting module and a digest encrypting module, the application server includes an obtaining module, a digest generating module and a merging module. The requesting module is configured for sending a request for a digital signature of an electronic document to the application server; the obtaining module is configured for obtaining the electronic document from the database; the digest generating module is configured for generating a digest of the electronic document, and sending the digest to the mobile device; the digest encrypting module is configured for encrypting the digest, generating an encrypted value, and sending the encrypted value to the application server; the merging module is configured for merging the encrypted value and the electronic document. A related computer-based method is also disclosed.

Abstract: A method for digitally signing an electronic document is disclosed. The method includes generating an electronic document to be signed and notifying an authorized signer to sign the electronic document. The method includes validating if the user is the authorized signer for the electronic document by comparing the received identification and the password with a digital certificate of the authorized signer stored in a database. Additionally, the method includes obtaining an image including a digital signature of the authorized signer from a database and resizing the image and inserting the resized image into the signature area of the electronic document if the user is the authorized signer.

Abstract: A system for digitally signing electronic documents is disclosed. The system includes a mobile device, an application server and a database, the mobile device includes a requesting module and a digest encrypting module, the application server includes an obtaining module, a digest generating module and a merging module. The requesting module is configured for sending a request for a digital signature of an electronic document to the application server; the obtaining module is configured for obtaining the electronic document from the database; the digest generating module is configured for generating a digest of the electronic document, and sending the digest to the mobile device; the digest encrypting module is configured for encrypting the digest, generating an encrypted value, and sending the encrypted value to the application server; the merging module is configured for merging the encrypted value and the electronic document. A related computer-based method is also disclosed.

Abstract: A computer-based method for helping and verifying a signer to sign electronic orders is provides. The method includes the steps of: selecting a batch of electronic orders that need to be signed by a designated signer whose digital certificate has been recorded in advance; setting an identity for each of the selected electronic orders; signing the selected electronic orders electronically by using a digital certificate of a signer; verifying whether the signer is the designated signer of the selected electronic orders; and generating an electronic signature by using the digital certificate of the signer if the signer is verified as the designated signer, wherein the electronic signature is applied on each of the selected electronic orders according to the identities of the electronic orders. A related system is also disclosed.

Abstract: A computer-based method for verifying electronic signature of a document is provided. The method includes the steps of: generating a first document by a first party in a server; encrypting the first document in the server; sending the first document to a client and informing a second party of signing the document electronically; signing the first document by the second party electronically in the client to generate a second document; receiving the second document sent from the client by the server and decrypting the second document; determining whether the contents of the second document are the same as the contents of the first document; and verifying whether the signatory of the second document is the designated signatory if the contents of the second document are the same as the contents of the first document. A related system is also disclosed.

Abstract: A computer-based method for automatically signing electronic documents is disclosed. The method includes the steps of: creating an electronic document, and notifying a specified signer to digitally sign the electronic document; confirming whether or not to digitally sign the electronic document; obtaining a copy of a digital certificate of the specified signer if it is confirmed to digitally sign the electronic document, the digital certificate comprising a private key; verifying the identity of the specified signer according to the digital certificate; generating a message digest of the electronic document if the identity of the specified signer has been verified; and encrypting the message digest with the private key thereby yielding a digital signature of the electronic document. A related system is also disclosed.

Abstract: An exemplary system includes a database (3), and a website (20) connected thereto. The database is configured for storing RoHS specifications, and the website is configured for information exchange with the database. The website includes a creating module (204), an uploading module (210), a RoHS checking module (212) and a storing module (214). The creating module is configured for creating a product RoHS compliance test list specifying testing items. The product composition analysis is based on a testing result. The RoHS checking module is configured for checking whether all compositions in the product composition analysis comply with the RoHS specifications. The storing module is configured for storing the product RoHS compliance test list and the product composition analysis of the product into the database, if all the compositions in the product composition analysis comply with the RoHS specifications. A related method is also provided.

Abstract: A system for auditing hazardous substances of a product includes: a receiving module (200) configured for receiving a product composition analysis provided by a supplier; an auditing module (202) configured for analyzing maximum concentrations of the hazardous substances in each homogeneous materials and components in the product composition analysis by weight of the homogeneous materials, and determining whether the maximum concentration of each hazardous substance in each homogeneous materials and components in the product complies with RoHS specifications; and an informing module (206) configured for informing the supplier or a purchaser of the auditing result. A related method is also disclosed.

Abstract: The present invention provides methods for the production of transgenic pineapple-like totipotent bodies, and in particular, transgenic pineapple-like callus and transgenic pineapple-like protocorm-like bodies. Also provided by this invention are methods for the production of transgenic plants from transgenic totipotent bodies which include transgenic pineapple-like callus and protocorm-like bodies. The invention additionally provides transgenic pineapple-like plants which may be genetically engineered to exhibit resistance to pests and disease and to exhibit improved qualities. The invention further provides improved methods for the maintenance of pineapple-like protocorm-like bodies in culture. These improved methods are useful for reducing the time, cost, and labor involved in selecting stably transformed pineapple-like protocorm-like bodies.