33 results about "Environmental studies" patented technology

The present invention relates to dyes in general. The present invention provides a wide range of dyes and kits containing the same, which are applicable for labeling a variety of biomolecules such as nucleic acids, cells and microorganisms. The present invention also provides various methods of using the dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and / or treatment of disease conditions.

The present invention relates to fluorescent dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and / or treatment of disease conditions.

The present invention relates to fluorescent dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and / or treatment of disease conditions.

A capillary absorption spectrometer and process are described that provide highly sensitive and accurate stable absorption measurements of analytes in a sample gas that may include isotopologues of carbon and oxygen obtained from gas and biological samples. It further provides isotopic images of microbial communities that allow tracking of nutrients at the single cell level. It further targets naturally occurring variations in carbon and oxygen isotopes that avoids need for expensive isotopically labeled mixtures which allows study of samples taken from the field without modification. The method also permits sampling in vivo permitting real-time ambient studies of microbial communities.

The invention belongs to the technology of deep rock mass construction characteristic research in the field of high-level waste geological disposal research and the filed of engineering geological research, and particularly relates to a drill core direction recovery method. The method comprises the following steps: 1, drawing core base lines; 2, recording core structural faces; 3, measuring and explaining a borehole TV to obtain a borehole wall distribution diagram; 4, calibrating a core, determining reference faces and determining inclination of the reference faces; 5, determining the direction of the base lines, wherein an inclination value Zi of the reference faces is acquired according to a borehole TV measuring result, and then the direction of the base lines can be obtained according to the following equation and the relative positions of the reference faces and the base lines; 6, determining the inclination of the core structural faces, wherein the inclined values of the structural faces within the ranges of the base lines are determined according to the following equation and the relative positions of the structural faces within the ranges of the base lines. According to the technical scheme, the drill core direction recovery method can achieve system recovery of deep drill core structural face occurrence and further provide technical support for deep geological environment research.

The present invention relates to fluorescent dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and / or treatment of disease conditions.

The invention discloses a root box experiment device for plant root environment research. The device comprises a front baffle, a rear baffle, a U-shaped root separating plate, a nylon net, a soil water collecting pipe, a water-holding base, a fastening screw, an air vent and a water inlet, wherein the nylon net is attached to the surface of the U-shaped root separating plate; the U-shaped root separating plate and the nylon net are located between the front baffle and the rear baffle and are fixed by the fastening screw; a soil water collecting hole is formed at a lateral edge of the U-shaped root separating plate; the water-holding base is located at the bottom. According to the invention, each separating plate and the water-holding base of the root box experiment device both are detachable and reusable, so that the technical problem of collecting the soil sample and soil water sample in the plant root environment research can be solved; a collecting method for millimeter-scale root tiny-region soil and soil water in different regions can be further simplified and accurate; the research on differential characteristics on different positions of the root system of the crop is benefited; the further accurate research on the root soil interface behavior is benefited.

The invention discloses a compound microbial active filling material for removing sulphur-containing repugnant substances, as well as preparation and application of the compound microbial active filling material. Ochrobactrum anthropi SL1 and aquamicrobium defluvii SU1 related in the invention are isolated bacteria obtained in a reactor for processing repugnant substances, such as H2S, in a water pollution control laboratory of the ecological environment research centre of the Chinese academy of sciences. The bacterial strains are preserved in the general microbial centre of the Chinese general microbial strain preservation and management committee. The preservation numbers are CGMCC No.7400 and CGMCC No.7399 respectively. The compound microbial active filling material disclosed by the invention has the advantages of being large in specific area, high in porosity, good in air permeability, low in resistance, high in bacterial cell loading capacity and less prone to run away; and because of being loaded with ochrobactrum anthropi SL1 and aquamicrobium defluvii SU1, the compound microbial active filling material is difficult to decay and deform in a bioreactor for purifying waste gas, and therefore, the compound microbial active filling material can be used for a long time and is applied to complex processing conditions.

The invention relates to a digestion device for measuring total nitrogen in pond sediments and a using method of the digestion device for measuring the total nitrogen in the pond sediments, and belongs to the technical field of ecological environment research in aquaculture subject fishery. The digestion device comprises an electric furnace, digestion pipes, a first container, a second container, a condenser, an adsorption pipe and a vacuum pump, wherein multiple digestion pipes are arranged on the electric furnace and are communicated with one another by virtue of air inlet pipelines so as to stretch into below the liquid surface in the first container; the first container and the second container are connected by virtue of a first air outlet pipe; the first air outlet pipe stretches into the bottom of the second container; the second container and the condenser are connected by virtue of a second air outlet pipe; and the second container is sequentially connected with the adsorption pipe and the vacuum pump by virtue of pipelines. The whole measurement process is finished after pretreatment, sampling, digestion and tail gas treatment are finished. The digestion device disclosed by the invention comprises a digestion utensil and also contains a whole set of digestion tail gas treatment device, and the digestion process can be normally finished even if a ventilating hood is not used. The device provided by the invention is easy to operate, rapid, safe and free of pollution.

The invention relates to an environment DNA identification method for fish community structure researching. The method is characterized by comprising the steps that 1, water samples are collected according to the size of the water area where a fish community is located; 2, the water samples are processed, and total environment DNA of the processed water samples is extracted; 3, a 16s r DNA sequence with nucleotide sequences being SEQ ID NO:1 and SEQ ID NO:2 is adopted as a universal primer to carry out PCR amplification on the total environment DNA, and a PCR product is obtained; 4, gel electrophoresis is carried out on the PCR product, and gel with DNA is obtained; 5, gel cutting and clone sequencing are carried out on the gel with the DNA, and then blast comparison is carried out through GENBANK so as to determine whether the DNA is a fish sequence or not; 6, after it is determined that the DNA is the fish sequence, the next-generation sequencing technology is adopted for analyzing composition conditions of the PCR product on a large scale, and therefore the environment DNA fish composition and community structure are determined. The environment DNA identification method is quite easy, convenient and efficient and has the practical value.