35results about How to "Sensitive and reliable detection" patented technology

The invention provides purified and isolated DNA fragments from Bacillus anthracis chromosomal DNA, primer sets and probes derived therefrom, as well as kits and detection methods for B. anthracis. The methods of the invention provide for specific detection of anthrax over closely related strains of Bacillus, as well as accurate detection of low numbers of B. anthracis in an environmental sample containing large amounts of non-specific DNA. The invention is applicable to food, health care, and military applications.

The invention relates to a built-in acoustic emission detection device for storage tank bottom plate corrosion. The deceleration mechanism is connected to the driving roller, the degreasing mechanism is fixed under the bracket, and is located below the driving roller, the driving roller is installed at the lower part of the straightening machine, the coiling car is set on the side of the straightening machine, and the signal is outsourced with aluminum-plastic pipes The cable is wound on the coiling roller of the coiling car, and the beginning of the signal cable is connected to the acquisition card. The end of the signal cable is connected to the acoustic emission sensor located in the sensor box through a two-way elbow connected to the aluminum-plastic pipe, and the other side of the two-way elbow is connected to the depth gauge. The invention solves the problem that the acoustic emission signal in the central area of ​​the storage tank is weak and easily missed.

The invention discloses kitchen electrical equipment and a control method thereof. The kitchen electrical equipment comprises a body, a control device and a detection device, wherein the detection device comprises a radar sensor arranged on the body, the control device is connected with the radar sensor, and the control device is used for controlling the body according to detection information ofthe radar sensor. Compared with traditional equipment, detection of the radar sensor in the kitchen electrical equipment is more reliable and sensitive, the problem that voice control in existing kitchen electrical equipment easily fails is solved, normal use of the kitchen electrical equipment is ensured, and the user experience is improved.

A device for identifying contact with an electrical conductor by at least one electrically conductive tool (2ra, 2rb). The device comprises a tool holder (Ir) rotationally mounted about a rotation axis (X), and the tool (2ra, 2rb) arranged on the tool holder. The device additionally comprises an electrically conductive body (ECB) and a rotor-side inductive element (L1) arranged on the electrically conductive body (Ir). A parallel resonant circuit comprises at least one rotor-side circuit element (A), at least one stator-side circuit element (B), a stationary circuit arrangement (28) and a stator-side inductive element (L2). The rotor-side inductive element and the stator-side inductive element are arranged to measure characteristic oscillation parameters (φ, Am, f) of the parallel resonant circuit independently of the rotation speed of the tool holder (Ir). An insulation-stripping machine and a method for identifying contact with an electrical conductor by at least one electrically conductive tool as disclosed.

The invention discloses an off-limit alarm device for the concentration of inhalable particulate matter in air. The off-limit alarm device for the concentration of the inhalable particulate matter in air comprises an alarm circuit with an alarm apparatus. The alarm circuit is provided with two switching-in ends for controlling on-off of a control circuit. The off-limit alarm device for the concentration of the inhalable particulate matter in air is characterized by comprising a containing body, wherein a third switch fan blade is arranged in the containing body and divides the inner cavity of the containing body into an upper air inlet chamber and a lower detection chamber, an air inlet channel is formed in the side wall of one side of the air inlet chamber, a second switch fan blade is arranged on the side wall of the other side of the air inlet chamber, and a first filter film is arranged in the air inlet channel; a second filter film, a third filter film, a metal plate and a fourth switch fan blade are arranged in the detection chamber from top to bottom in sequence at intervals; the two switching-in ends of the alarm circuit are each electrically connected with the third filter film and the metal plate. According to the off-limit alarm device for the concentration of the inhalable particulate matter in air, an alarm can be given when the inhalable particulate matter concentration in indoor air exceeds a limit value under a common standard; meanwhile, the off-limit alarm device for the concentration of the inhalable particulate matter in air has the advantages of being simple in structure, low in cost, sensitive and reliable in detection and the like.

The invention discloses kitchen electrical equipment and a control method thereof. The kitchen electrical equipment comprises a body, a control device and a detection device. The detection device comprises a pressure detection device arranged on the body, the control device is connected with the pressure detection device, and the control device is used for controlling the body according to the detection information sent by the pressure detection device. Compared with the traditional equipment, the detection of the pressure detection device in the kitchen electrical equipment is more reliable and sensitive, the required stroke is shorter, the structure is simpler to achieve, and the user experience is better, thereby solving the problem that the voice control in the existing kitchen electrical equipment is easy to fail, ensuring the normal use of the kitchen electrical equipment, and improving the use experience of the user.

The invention belongs to the technical field of biological cell identification, and particularly relates to a marker, an identification method, a detection kit and application of fetal trophoblastic cells. According to the identification method, a sample containing fetal trophoblastic cells is dyed with a fluorescently labeled HK2 antibody substance, then fluorescence detection is carried out, andHK2 positive cells are target cells. The kit comprises a fluorescently labeled HK2 antibody substance and a cell nucleus coloring agent. According to the technical scheme provided by the invention, fetal trophoblastic cells can be sensitively and reliably detected in a cervical mucus sample or a blood sample of a woman at an early pregnancy stage, and particularly, the kit can be used for prenatal diagnosis at the early pregnancy stage.

The invention discloses a device for measuring PM 2.5 of specific places. The device for measuring the PM 2.5 of the specific places is characterized in that the device for measuring the PM 2.5 of the specific places comprises a measuring container, two metal material dust collection plates are arranged on the inner wall of the measuring container in a parallel mode, the two dust collection pates are connected to the two ends of a measuring power source in parallel to enable the two dust collection plates to form a positive electrode and a negative electrode, an air inlet channel is further formed in the middle of one end of the measuring container, and an air outlet channel is formed in the other end of the measuring container; an ionization electrode is further arranged on the portion, located at the entrance of the air inlet channel, in the measuring container, and the ionization electrode and an ionization power source are connected to be used for ionizing intake air. The invention further discloses a method for measuring the PM 2.5 of the specific places. The method for measuring the PM 2.5 of the specific places adopts the device for measuring the PM 2.5 of the specific places to achieve detection. The device and method for measuring the PM 2.5 of the specific places have the advantages of being simple in structure, convenient to operate, low in cost and sensitive and stable in detection.

Early detection of tumors is a major determinant of survival of patients suffering from tumors, including bladder tumors. Members of the BTM or UBTM family can be highly and consistently accumulated in bladder tumor tissue and other tumor tissue, and / or can be accumulated in urine of patients, and thus are markers for bladder and other types of cancer. In certain embodiments, BTMs or UBTMs can accumulate in the urine, and detection of UBTM family members can be an effective diagnostic approach. In some embodiments, quantitative PCR methods have advantages over microarray methods. In other embodiments, detection and quantification of a plurality of BTMs or UBTMs can increase the sensitivity and specificity of detection of bladder cancer, and therefore provides methods for determining the stage and type of bladder cancer. Kits provide easy, convenient ways for carrying out the methods of this invention.

The invention discloses a marker molecule CHL1 for low oxygen, and an application thereof, and belongs to the technical field of biomedical materials. The marker molecule is a cell adhesion molecule CHLl, and the protein sequence of the marker molecule is shown as SEQ ID No. 1 or SEQ ID No. 2. The CHL1 can be used as the marker molecule for the low oxygen. An antibody and an enzyme-labeled second antibody which are prepared by the marker molecule by an immunological method can detect whether an animal or person is in the low oxygen state or not by using an enzyme-linked immunoassay method, with reliable detection sensitivity.

In one aspect, the present invention features methods for detecting at least one neurological disorder in a patient, the method comprising obtaining a biological sample from the patient; and detecting at least one aberrant human glutamate transporter 2 (EAAT 2) mRNA in the sample as being indicative of the neurological disorder in the patient. In a particular aspect, the invention is useful for detecting amyotrophic lateral sclerosis (ALS) in the patient.

The invention discloses a method for giving an alarm on the out-of-limit concentration of inhalable particulate matter (PM) in the air. The method is characterized by comprising the steps of collecting quantitative air to be detected, and enabling the collected air to pass through an elastic filter membrane, wherein the filter membrane is capable of collecting PM2.5 of the sample air, a light conductive sheet is adhered to the central position of the lower part of the elastic filter membrane, and the filter membrane arranged along the transverse direction deforms downwards under the action of gravity in the PM2.5 collection process; arranging two metal plates at certain height under the filter membrane, wherein the distance between the metal plates is slightly smaller than the width of the metal sheet; enabling one ends of the two metal plates to be respectively connected into an alarm circuit; and after the filter membrane is in contact with the metal plates, alarming to indicate that the content of PM 2.5 in the air to be detected exceeds the standard. After the method is adopted, alarming is carried out when the concentration of inhalable PM in the air in a room exceeds the limiting value under the condition of daily standard; furthermore, the method has the advantages of being simple in implementation, low in cost, sensitive and reliable in detection, etc.