Abstract: A water level controller for a hydroponic system includes a float shifting upward and downward with the culture solution, a first magnetic attraction element and an inlet valve for feeding in the culture solution. The float includes a seal and a second magnetic attraction element. The seal closes the inlet valve to stop feeding in water when the float ascends to a high water level, and moves way from the inlet valve to start feeding in water at a low water level. The second magnetic attraction element attracts the first magnetic attraction element to keep the seal closing the inlet valve at the high water level and to keep the seal moving away from the inlet valve at the low water level, until the buoyancy of the float is larger than the magnetic attraction between the second and the first magnetic attraction element thereby causing escape from each other.

Abstract: Provided is an amphoteric composite hydrogel, including: a polymer having a structure of formula I, wherein m, n, p and q are each an integer of 0 to 1000, m+n>100, p+q>100, R is R1 is H or an alkali metal element, and R2 is H or CH3; and a pozzolanic material incorporated into the structure of formula 1. Also provided are a cement mortar composition and a concrete composition each comprising the amphoteric composite hydrogel and a method of preparing the amphoteric composite hydrogel.

Abstract: A method for analyzing the diversity of immune repertoire of T cell receptors (TCR) or B cell receptors (BCR) of a cell-free DNA (cf-DNA) sample and of a nuclear DNA sample of peripheral blood mononuclear cell (PBMC), applicable in screening and determining the presence of lesion-infiltrating lymphocytes.

Abstract: The present invention relates to an apparatus and a method for a high temperature test and a low temperature test. The apparatus mainly comprises a depressing head and a test base, wherein the depressing head comprises a cooling module, a heating module, and a heat dissipation module therein, the heat dissipation module comprises a finned heat sink and a heat conduction member, and the heat conduction member is thermally coupled to the heating module and the finned heat sink. When the low temperature test is performed, an electronic component is cooled by filling liquid nitrogen into the cooling module of the depressing head. When the high temperature test is performed, the electronic component is heated by the heating module. If the temperature of the electronic device is higher than a predetermined high temperature, the electronic device is cooled by the heat dissipation module.

Abstract: A dew resistant module for a test socket, and an electronic component testing device having the same are provided. An enclosure body is provided to circumscribe the test socket; and a test socket base plate provided on top of the test socket and enclosure body. A cover is provided to cover the test socket, enclosure body and test socket base plate. With the provision of the enclosure body and the cover, the test socket, test socket base plate and a portion of the thermal head are prevented from coming into contact directly with the atmosphere, whereby condensation or dewing is prevented, thermal insulation achieved and energy consumption minimized.

Abstract: A linear guideway is characterized in that it is capable of determining whether there is abnormal displacement of the return member based on the open or close of the circuit, and can output the abnormal signal immediately when the circuit is open. Compared with the conventional structure, since the present invention can be disposed only at one end of the slide block, both the number of components and assembly time can be reduced, and the diagnosis with precision and immediacy can be performed without high-deep algorithm, which can play a role of instant reminding before the linear guideway completely loses function. Therefore, the service life of the linear guideway can be known early to avoid the loss caused by the shutdown.

Abstract: The disclosure discloses a virtual reality feedback device, and a positioning method, a feedback method, and a positioning system thereof. The method for positioning a virtual reality feedback device includes: obtaining first time point information of a first microwave signal, wherein the first time point information includes a reception time point and a transmission time point of the first microwave signal; obtaining a second time point information of a second microwave signal, wherein the second time point information includes a reception time point and a transmission time point of the second microwave signal; and determining a position of the virtual reality feedback device according to a transmission speed of the first microwave signal, a transmission speed of the second microwave signal, the first time point information, and the second time point information.

Abstract: Provided are a data integrity protection method and device for protecting key data in control components of an industrial control system. The method includes establishing a correlation among a plurality of control components in the industrial control system; and determining a summary indicating the integrity of data to be protected in a first control component based on identity features and data features of other control components correlated to the first control component among the plurality of control components. The data features are used for identifying the data to be protected in the control components, and the first control component is any one of the plurality of control components. Since the security of the data in any control component is established over other correlated control components, the key data in the control components can be effectively protected.

Abstract: A temperature-controlled module for electronic devices and a testing apparatus provided with the same mainly include a temperature-controlled tray, an upper board and a dry-air supply device. The temperature-controlled tray includes holding cavities for accommodating electronic devices and a fluid chamber for cooling fluid. The upper board is furnished with through holes, while the upper board and the temperature-controlled tray are spaced by a predetermined distance. The dry-air supply device provides dry air to a space between the temperature-controlled tray and the upper board. Thereupon, by having cooling fluid to flow inside the temperature-controlled tray, the temperature-controlled tray can be kept in a lower predetermined temperature so as to rapidly cool down the electronic device. In addition, by providing the upper board and the dry-air supply device to allow dry air to flow through the surface of the electronic device, then the water-condensation phenomenon and air leakage can avoided.

Abstract: Systems, apparatuses, and methods for placing cells in an integrated circuit are described. In various embodiments, an integrated circuit is divided into many partitions. In a first set of partitions susceptible to transistor latch-up, the many transistor gate stripes are connected to one of the power rails rather than left floating. The lengths of the transistor gate stripes are shortened for well tap cells in the first partition, but increased in a second partition susceptible for poor signal integrity. One or more implant layers are formed underneath the transistor gate stripes in each of the first and second partitions to adjust an amount of protection against transistor latch-up and poor signal integrity. An electrostatic discharge transistor is included with at least one source region of multiple source regions formed in a well with a same doping polarity as the at least one source region.

Abstract: The present invention provides a low-frequency mutation enrichment sequencing method for free target DNA in plasma, comprising plasma DNA extraction and library construction, general library TT COLD PCR amplification enrichment, probe enrichment capture, PCR and sequencing of captured products, and positive and negatice double-strand error-correction low-frequency information analysis.

Abstract: A water level controller for a hydroponic system includes a float shifting upward and downward with the culture solution, a first magnetic attraction element and an inlet valve for feeding in the culture solution. The float includes a seal and a second magnetic attraction element. The seal closes the inlet valve to stop feeding in water when the float ascends to a high water level, and moves way from the inlet valve to start feeding in water at a low water level. The second magnetic attraction element attracts the first magnetic attraction element to keep the seal closing the inlet valve at the high water level and to keep the seal moving away from the inlet valve at the low water level, until the buoyancy of the float is larger than the magnetic attraction between the second and the first magnetic attraction element thereby causing escape from each other.

Abstract: Systems and methods are provided for managing navigation among applications installed on an electronic device. According to certain aspects, an electronic device receives (1502) a selection of a graphical item displayed by a source application and an instruction to copy the graphical item. The electronic device stores (1514) an identification of the source application in a data record and navigates (1522) to a destination application. Further, the electronic device receives (1538) a command to paste the graphical item within the destination application and return to the source application, examines (1560) the data record to identify the source application, and automatically navigates (1570) to the source application.

Abstract: Early vascular cells (EVCs), including endothelial cells and pericytes, are generated from hiPSCs. Unlike the isolated endothelial progenitor cells, the differentiated ECs mature and are functional. When encapsulated in synthetic hydrogel, EVCs respond to matrix cues and self-assembled to form three-dimensional EVCs. Moreover, these EVCs respond to hypoxic microenvironment and undergo vasculogenesis to form complex 3D networks.

Abstract: A dual loop type temperature control module and an electronic device testing apparatus having the same are provided. The temperature control module comprises a first loop through which a first working fluid of a first temperature flows, a second loop through which a second working fluid of a second temperature flows, a controller for controlling a first switching valve such that the first or second working fluid flows through a temperature regulating device, and a second switching valve such that the working fluid flowing through the temperature regulating device returns to the first or second loop. The temperature regulating device adjusts a thermoelectric cooling device to reach two different reference temperatures based on the rise/fall of its temperature dependent on the working fluid.

Abstract: A dew resistant module for a test socket, and an electronic component testing device having the same are provided. An enclosure body is provided to circumscribe the test socket; and a test socket base plate provided on top of the test socket and enclosure body. A cover is provided to cover the test socket, enclosure body and test socket base plate. With the provision of the enclosure body and the cover, the test socket, test socket base plate and a portion of the thermal head are prevented from coming into contact directly with the atmosphere, whereby condensation or dewing is prevented, thermal insulation achieved and energy consumption minimized.

Abstract: In an embodiment, an integrated circuit (IC) may include a circuit block that couples to one or more pins of the IC to communicate and/or receive power on the pins. The circuit block may include a ground connection, which may be electrically insulated/electrically separate from the ground connection of other components of the integrated circuit. In an embodiment, the circuit block may include an ESD protection circuit for the pad coupled to the pin. The IC may include another ESD protection circuit for the pad. The circuit block's ESD protection circuit may be sized for the current that may produced within the circuit block for an ESD event, and the IC's ESD protection circuit may be sized for the current that may be produced from the other components of the IC.

Abstract: A temperature-controlled module for electronic devices and a testing apparatus provided with the same mainly include a temperature-controlled tray, an upper board and a dry-air supply device. The temperature-controlled tray includes holding cavities for accommodating electronic devices and a fluid chamber for cooling fluid. The upper board is furnished with through holes, while the upper board and the temperature-controlled tray are spaced by a predetermined distance. The dry-air supply device provides dry air to a space between the temperature-controlled tray and the upper board. Thereupon, by having cooling fluid to flow inside the temperature-controlled tray, the temperature-controlled tray can be kept in a lower predetermined temperature so as to rapidly cool down the electronic device. In addition, by providing the upper board and the dry-air supply device to allow dry air to flow through the surface of the electronic device, then the water-condensation phenomenon and air leakage can avoided.

Abstract: A dual loop type temperature control module and an electronic device testing apparatus having the same are provided. The temperature control module comprises a first loop through which a first working fluid of a first temperature flows, a second loop through which a second working fluid of a second temperature flows, a controller for controlling a first switching valve such that the first or second working fluid flows through a temperature regulating device, and a second switching valve such that the working fluid flowing through the temperature regulating device returns to the first or second loop. The temperature regulating device adjusts a thermoelectric cooling device to reach two different reference temperatures based on the rise/fall of its temperature dependent on the working fluid.