35 results about "Research environment" patented technology

The invention relates to a method for predicting common environment poison property / activity on the basis of an intelligent correlation index, which is suitable for predicting the poison property / activity according to the molecular structure information of environment poison compound. The method comprises the following steps: (1) defining an atom type, and dividing the atom into four classes according to the branching coefficient of the atom; (2) defining the property correlative parameter (PCP) and the distance correlative function (DCF) of a non-hydrogen atom by a user according to the structural characteristic of the researched environment poison module; (3) determining an intelligent correlative function; (4) calculating an intelligent correlative index (ICI); and (5) and obtaining anoptimal prediction model according to a statistical result. Experiments prove that the method for representing the molecular structure of the environment poison has the advantages of specific materialization meaning, strong structural representation capability and good expansion performance and can be regulated, and good effect is obtained in the quantitative structure activity prediction research of various types of environment poison modules.

The invention discloses a plant gene sequence. The present invention isolates, clones and identifies a rice-specific gene promoter Cd S2 that is strongly induced by cadmium (Cd) from Nipponbare rice, and treats the obtained transgenic rice with cadmium (Cd). It is found through GUS chemical staining that after the treatment The transgenic plants had obvious staining in various parts. And through the RT-qPCR analysis of the expression of Gus gene before and after treatment, it was found that after cadmium (Cd) treatment, the expression of Gus gene in transgenic plants was 887.9 times that of before treatment, reaching 4 times the activity of the constitutive promoter ACTIN. The promoter can be used to reflect the intensity of cadmium pollution in soil through its expression level in rice. Its characteristics of simple operation, low detection limit, trace sensitivity and high accuracy are of great significance to the study of environmental relations and the improvement of ecological environment. , play an important role in sustainable development, and can actively analyze the principles of pollution formation, and further provide valuable experience for their avoidance and controllable transformation.

The present invention relates to a method for preparing a stony coral bone sample applicable to observing the microstructure of the skeleton and studying its environmental record, comprising the following steps: (1) soaking the stony coral bone sample in bleaching solution for the first time, and washing it with clean water , and then soak for the second time in a new bleaching solution; the bleaching solution is 10% hydrogen peroxide or NaClO solution with a pH of 8-9; (2) after the immersion, the stony coral skeleton sample is further cleaned, and then Dry at 45°C~60°C for later use. The present invention removes coral polyp tissue and other organic impurities by using common reagents such as hydrogen peroxide and an ultrasonic cleaner, thereby obtaining clean stony coral skeletons, minimizing the damage to coral skeleton structures and microstructures in the preparation process, and avoiding the destruction of the skeleton Changes in trace element content and isotopic composition ratios.

The invention belongs to the technical field of archive classification and retrieval, and relates to an automatic archive compiling and researching device based on an archive management information system of B / S architecture. The device is formed by allowing a client browser, an archive information input and management module, an archive compiling and researching module and databases to be communicated through electrical information, wherein the archive information input and management module comprises three functional modules of the inner file list management module, the file list management module and the specialist registration card information module, the archive compiling and researching module is composed of three functional sub-modules of the archive classification compiling and researching sub-module, the file word size index compiling and researching sub-module and the specialist information compiling and researching sub-module, the databases are composed of the file list database, the inner file list database, the archive classification database, the specialist basic information registration database, the specialist thesis detail database, the specialist project detail database and the archive compiling and researching foundation database, and the client browser is any browser software running on a networked common computer or terminal equipment. The design principle is scientific and reliable, the compiling and researching labor intensity is small, working efficiency is high, information omission is small, and the compiling and researching environment is friendly.

The invention discloses a semiconductor refrigeration thermo-electric generation experimental instrument comprising a semiconductor refrigerator and a main machine. The semiconductor refrigerator is internally provided with electric heating wires, a thermometer, an in-machine cooling fan and an overheat protector, wherein all parts in the semiconductor refrigerator are smartly combined with all unit circuits in the main machine, conversion switches, and the like to form a physical experimental instrument capable of carrying out quantitative experimental projects, such as research on a semiconductor refrigeration coefficient, research on a thermo-electric generation rule, measurement of the internal resistance of a thermo-electric power supply, and the like and fill the gap of the prior art. The invention has the advantages of convenient and reliable use and high performance price ratio, can guide university students to research environment-friendly refrigeration and environment-friendly generation and cultivate a concept of researching new energy and can be used in common physical experiments, modern physical experiments and college physical experiment courses in colleges and universities or used as a physical experiment demonstration instrument.

The invention relates to a detoxification method for an excised stem segment of grape. The method comprises the following steps: 1) selecting a grape variety and a test-tube plantlet related to parental stock, wherein the grape variety is subjected to a secondary culture until a stem is semi lignified; under a sterile condition, clipping a single bud stem segment and inoculating in a culture media, followed by placing in a 2000-3000 lx culture room having a temperature of 22-28 DEG C until a white rootlet is exposed to obtain a excised stem segment of the grape; 2) placing the excised stem segment of the grape in a incubator having a temperature of 35-40 DEG C, followed by carrying out a dark treatment while carrying out a heat treatment; 3) observing a growth condition of the lateral budafter heat treating for 10 days, visual peeling 0.2-0.8 mm of the micro stem apex under a sterile condition when a length of the yellow young shoot is 6-10 cm, then placing the micro stem apex in theculture media to obtain the propagation material. According to the present invention, illumination and frequent temperature change process do not require, such that the method has characteristics of simple operation, time saving, electricity saving, labor saving, high efficiency and low cost. In addition, the method has not strict requirements on research environments and research conditions and facilities, such that the method can be applicable for the research and teaching unit with the tissue culture condition.