80results about How to "Improve developmental ability" patented technology

An object of the present invention is to provide a toner excellent in fixing ability and developing ability. Provided is a non-magnetic toner including: toner particles each containing at least a binder resin, a colorant, and a wax component; and an inorganic fine powder, wherein: the toner has a specific storage elastic modulus at each of 110 C and 150 C; when a temperature at which a differential curve of a temperature and the common logarithm LogG′ of a storage elastic modulus G′ shows the minimum value in the temperature region of 60 to 130 C is denoted by T0, a straight line having the largest gradient out of straight lines each connecting points on the differential curve at temperatures of T0+a and (T0+a)+1 (C) [where a represents an integer of 0 to 9] is denoted by A, a straight line having the smallest gradient out of straight lines each connecting points on the differential curve at temperatures of T0+b (C) and (T0+b)+10 (C) [where b represents an integer of 0 or more] is denoted by B, and a straight line having the largest gradient out of straight lines each connecting points on the differential curve at temperatures of T0+c and (T0+c)+10 (C) [where c represents an integer larger than “a value b when a straight line B is given”] is denoted by C, the relationship of 1C ? ¢TA (from T0 to the point of intersection of the straight lines A and B) ? 20 C and the relationship of 100 C ? T_BC (the point of intersection of the straight lines B and C) ? 120 C are established.

The invention discloses a Delta parallel-connection mechanical hand for teaching. The Delta parallel-connection mechanical hand comprises a Delta type parallel-connection mechanical hand machine body and a rack, the Delta type parallel-connection mechanical hand machine body comprises a detachable tail-end execution element, a plurality of servo motors and a plurality of sets of mechanical arms connected with the tail-end execution element. The servo motors correspond to the mechanical arms in a one-to-one mode, and one set of mechanical arms is driven by one servo motor; the servo motors are respectively and fixedly arranged on the top of the rack, and are connected with the corresponding mechanical arms respectively; each mechanical arm is mainly composed of an upper arm body and a lower arm body, one end of each upper arm body is connected with the corresponding servo motor, the other end of the upper arm body is connected with one end of the corresponding lower arm body through a first fisheye bearing with three freedom degrees, and the other ends of the lower arm bodies are connected with the tail-end execution element through second fisheye bearings with three freedom degrees. On the premise of greatly reducing the manufacturing cost, the original ecological Delta parallel-connection mechanical hand is built for a student to be learnt and developed.

The invention discloses an avalanche tolerance test device of a power MOSFET device. The avalanche tolerance test device of the power MOSFET device comprises a front end power MOSFET device to be tested and a peripheral test circuit thereof, and a back end sampling control system; the test circuit comprises an adjustable direct current power supply, a fuse, an adjustable inductor, a voltage sampling resistor, a voltage dividing resistor and a current sampling resistor; and the sampling control system comprises an operational amplifier module, an AD module, a CPU module, a driving module, and an upper computer. The avalanche tolerance test device of the power MOSFET device disclosed by the invention has safe operation, simple equipment, low cost and objective test result, and can display the drain-source voltage of the MOSFET power device to be tested and the waveform of the current flowing through the drain-source in the upper computer; meanwhile, the avalanche tolerance test device ofthe power MOSFET device realizes a high instantaneous energy avalanche tolerance test, and provides important parameter indexes for device performance evaluation.

The invention relates to a method for bovine in-vitro fertilized embryo culture and a used culture solution. Particularly, on one hand, the invention relates to a method for culturing a bovine in-vitro fertilized embryo. The method comprises the following steps of putting the bovine in-vitro fertilized embryo into a bovine in-vitro fertilized embryo culture solution and carrying out embryo in-vitro culture under the conditions that the temperature is 38.5 DEG C, the content of CO2 is 0.5% and the humidity is 100%. The invention further relates to a bovine in-vitro fertilized embryo culture solution. The culture solution comprises NaCl, KCl, NaHCO3, MgCl2, KH2PO3, sodium pyruvate, glucose, calcium galactonate, fetal calf serum, L-glutamine, an essential amino-acid, a nonessential amino acid, glutathione and water. The method and the used culture solution have excellent technical effects in the specification, for example, the method has a higher blastocyst hatching rate when the bovine in-vitro fertilized embryo is cultured.

The invention relates to cell culture and particularly discloses an immature oocyte culture scheme which can promoting in-vitro maturation of immature oocytes. Specially, the scheme adopts follicular granulosa cells and a culture solution for culturing the follicular granulosa cells, wherein the culture solution for culturing the follicular granulosa cells contains CNP or its variants or analogues and an HDAC (histone deacetylase) inhibitor. The invention further provides an in-vitro maturation culture solution containing the CNP or its variants or analogues and the HDAC inhibitor and related compositions and application of a culture medium, the culture solution and the compositions in promotion of in-vitro maturation of immature oocytes.

The invention relates to ovary storing liquid and an ovary storing method, in particular to ovary constant-temperature storing liquid and an ovary constant-temperature storing method. The problems that at present, constant-temperature ovary storing time is over short, and the quantity and the quality of oocytes are affected are solved. The ovary constant-temperature storing liquid comprises phosphate buffer, glucose and tea polyphenols. The ovary constant-temperature storing method comprises the following steps of (1) removing adipose tissues surrounding an ovary and then rinsing the ovary by using normal saline; and (2) placing the ovary which is cleaned in the step (1) in the ovary constant-temperature storing liquid. The ovary constant-temperature storing liquid has the advantages of high efficiency, low cost, high convenience and zero toxicity on cells. The ovary constant-temperature storing method is simple and is easy to operate; other refrigerating equipment is not required; and the ovary constant-temperature storing liquid and the ovary constant-temperature storing method are particularly suitable for collecting ovaries of wild animals in fields; and the collected ovaries of the animals can be conveyed at constant temperature by a long distance.

The invention relates to nap-up and nap-down brushed yarn buck foaming resin for synthetic leather and a preparation method thereof. The yarn buck foaming resin consists of the following raw materials in parts by weight: 40-50 parts of solvent type PU (Poly Urethane) resin, 1-2 parts of refined high-temperature yarn buck powder, 0.5-2 parts of coarse low-temperature yarn buck powder, 30-50 parts of butanone, 5-15 parts of methylbenzene and 1-3 parts of organic silicone oil. The preparation method of the foaming resin comprises the following steps of: adding the refined high-temperature yarn buck powder, the coarse low-temperature yarn buck powder, the butanone, the methylbenzene and the organic silicone oil into the solvent type PU resin according to formula amounts; stirring at a high speed till the raw materials are dispersed uniformly; and filtering to obtain the nap-up and nap-down brushed yarn buck foaming resin. The foaming resin has the advantages of remarkable nap-up and nap-down effects, smooth handfeel, good touch feel, easiness for brushing, oil coke feel and the like, and can be used for preparing leather in the classic style, and the like.

The invention belongs to the field of assisted reproduction and particularly relates to vitrification refrigerating liquid. According to the vitrification refrigerating liquid provided by the invention, taxol is added to serve as a cryoprotectant and the vitrification refrigerating liquid obtained with reference to the taxol adding mode is treated, so that the development rate of in vitro fertilized blastocyst after the oocyte is thawed can be increased. The taxol serving as an additive in the refrigerating liquid can achieve the effects of reducing freezing injury of the mature oocytes and improving the development capability of the embryo after fertilization. The optimal concentration of the adding mode is obtained by researching the adding concentration of the taxol. The vitrification refrigerating liquid provided by the invention can greatly increase recovery rate after the frozen mature oocytes are thawed and the development rate of the blastula and achieves the protective effecton the cell ultrastructure.

The invention relates to optimization liquid for in vitro maturation of advanced-age mouse oocytes. A preparation method comprises the steps of firstly, weighing 0.0232g of melatonin, enabling the melatonin to dissolve in 1ml of anhydrous ethanol, preparing 100mM of concentrated storage liquid, diluting 100mM of the concentrated storage liquid in an IVM culture medium until the concentration is 10-6mol/L, and the final concentration of the anhydrous ethanol is 0.01% smaller than that of the IVM culture medium, and preparing the optimization liquid for in vitro maturation of advanced-age mouseoocytes. In accordance with in vitro maturation culture liquid for commercial mouse oocytes, the culture efficiency cannot meet production and embryo transplanting requirements, and the in vitro maturation culture liquid for commercial mouse oocytes is improved, so that the maturing rate ( 87.53 +/-2.88% ) and the cleavage rate ( 79.04 +/-3.13% ) after fertilization, and the blastula rate( 65.69 +/-2.07% ) of the advanced-age mouse oocytes can be notably increased. Besides, the distribution and the activity of mitochondrial can be improved, and the oxidation stress level and the early apoptosis are reduced to weaken oocyte degradation caused by aging.

A method of assessing developing capacity comprises the following steps: a photoresist layer is formed on a control wafer; a first thickness is obtained by measuring the photoresist layer; the photoresist layer is developed; a second thickness is obtained by measuring the developed photoresist layer; the thickness difference of the photoresist layer is obtained by subtracting the second thickness from the first thickness of the photoresist layer; the greater the thickness difference is, the stronger the developing capacity is. With the steps, the cost of assessing the developing capacity of a developer is reduced; at the same time, the quality of the semiconductor devices of the actual process is not affected, and the yield is increased.

The invention discloses a method for producing an organic carbon fertilizer through photocatalytic and oxidized organic wastewater and relates to an organic wastewater treatment and waste utilization method. The method includes the following steps that 1, a photocatalytic and oxidized reaction container is prepared; 2, organic wastewater obtained after coarse filtration is pumped into the photocatalytic and oxidized reaction container; 3, photocatalysts and hydrogen peroxide are added, wherein the photocatalysts including TiO<2>/SiO<2> and Fe<3>O<4> are added, the hydrogen peroxide is pumped in, a stirrer is started to mix the photocatalysts and the hydrogen peroxide to be uniform, and the operation process is required to be kept out of the sun; 4, a photocatalysis-oxidative degradation reaction is conducted, wherein a top cover is opened so that sunlight can be directly emitted into the reaction container or an ultraviolet lamp is turned on for illumination; 5, the catalyst is recycled, evaporated, concentrated and made into a liquid organic carbon fertilizer with the carbon content being 50-500 g/L. The organic carbon fertilizer produced through the method can be used for crop irrigation and spraying and can further serve as fertilizer mother liquor to be blended into various types of fertilizers for being applied.

The invention discloses a multi-object disc type lateral flow test paper chip, a laser cutting preparation method, a use method, an application and a detection device thereof. Multiple hydrophilic channels connected with a probe storage pad are arranged on a disc hydrophobic base plate, so that the purpose of simultaneously detecting multiple objects can be achieved and integration and optimization of experimental result can be conveniently performed; quantity of channels, length of channels, detection type and the like can be designed according to different detection requirements, so that thedeveloping performance is strong; the capillary action is utilized to guide liquid flow, no additional liquid driving device is required, the biological compatibility is high and the post-processingis simple; size and shape of each zone of the test paper chip are designed according to the test requirements of to-be-detected objects; a laser cutting technology adopted for preparing the test paperchip has the characteristics of simple and convenient operation, short preparation period, low energy consumption, high precision and high repeatability; the multi-object disc type lateral flow testpaper chip can be used as a miniature and quick onsite fast detection instrument and especially has an excellent application prospect in the fields of clinical diagnosis, food hygiene, environment monitoring, biological chemistry and the like.

The invention belongs to the field of electric power detection, and especially relates to a high-speed electric power harmonic wave detector based on FPGA and ARM. The high-speed electric power harmonic wave detector altogether has five parts, namely a signal conditioning module, an A/D sampling control module, an FPGA coprocessor module, an ARM master controller module and a display module, wherein an output of the signal conditioning module is connected with an input of the A/D sampling control module; an output of the A/D sampling control module is connected with an input of the FPGA coprocessor module; an output of the FPGA coprocessor module is connected with an input of the ARM master controller module; and an output of the ARM master controller module is connected with an input of the display module.

The invention relates to an in-vitro culture system for Tibetan yak oocyte. Researches show that in an in-vitro culture process of cumulus-oocyte complexes (COC) of yak, proliferation of granule cellsof the yak can be obviously improved by adding exogenous BMP15, and an effect of obviously improving the oocyte maturation rate is achieved. According to the culture system disclosed by the invention, the influence of the BMP15 on yak COC in-vitro culture and a molecular regulation mechanism thereof in an in-vitro maturation process can be explored, and a developmental mechanism of the yak oocytein the maturation process can be further known, so that the in-vitro maturation culture quality of the yak oocyte and the developmental capacity of early embryos can be improved.