Pepper grinder

The invention discloses a pepper grinder, which comprises a hollow containing unit, a grinding unit assembled on the bottom of the containing unit and used for grinding pepper, and an opening and closing unit, wherein the grinding unit defines a spilling port positioned on the bottom; and the opening and closing unit comprises an opening and closing element arranged below the grinding unit, the opening and closing element can move up and down and convert between a closing position and an opening position. When on the closing position, the opening and closing element obstructs outside space beyond the spilling port and the pepper grinder, and when on the opening position, the spilling port is communicated with the outside space beyond the pepper grinder; therefore, when the opening and closing unit moves to the closing position to block the spilling port, the pepper grinder can avoid pepper powder left in the grinding unit falling outward after use.

One-step method for synthesizing fenchol with turpentine

The invention discloses a one-step method for synthesizing fenchol with turpentine. In the method, turpentine is used as a raw material, CHKC-4 is used as a catalyst, the catalytic characteristics of the catalyst, namely high activity and selectivity are utilized to perform catalytic isomerization and hydration on pinene (terpene), isomerization and hydration are completed in one step, and then physical methods and chemical methods are combined, and various advanced separation technologies such as efficient vacuum fractionation and melt crystallization are utilized to perform assembly and integration and prepare the fenchol product of which the yield is no less than 50% and purity is 99%. The method has the following advantages: turpentine is used as a raw material which is abundant, is easy to obtain and has low cost, the synthesis and separation technologies are simple, the method is convenient to operate, the product has high purity and lower production cost, etc. The technology and ...

Communication protocol method for input/output device and system thereof

The invention relates to a communication protocol method for an input/output device, which comprises an upper-layer processing program and a bottom-layer processing program. The upper-layer processing program comprises the following steps of: a. writing an input/output data group into a protocol write-in file; b. reading input/output response data from a protocol readout file. The bottom-layer processing program comprises the following steps of: c. judging whether the write-in data belongs to a part of the protocol write-in file or the whole protocol write-in file; d. if so, then interpreting the write-in data so as to control at least one input/output device or to communicate with the at least one input/output device; e. judging whether the reading data belongs to a part of the protocol readout file or the whole protocol readout file; and f. if so, then compiling the action result of the input/output device into the input/output response data.

Packaging structure and method for sphere pin array substrate with contact pad located in chip center

Pepper grinder

The invention discloses a pepper grinder, which comprises a hollow containing unit, a grinding unit assembled on the bottom of the containing unit and used for grinding pepper, and an opening and closing unit, wherein the grinding unit defines a spilling port positioned on the bottom; and the opening and closing unit comprises an opening and closing element arranged below the grinding unit, the opening and closing element can move up and down and convert between a closing position and an opening position. When on the closing position, the opening and closing element obstructs outside space beyond the spilling port and the pepper grinder, and when on the opening position, the spilling port is communicated with the outside space beyond the pepper grinder; therefore, when the opening and closing unit moves to the closing position to block the spilling port, the pepper grinder can avoid pepper powder left in the grinding unit falling outward after use.

Standardized recombinant tea tree oil and preparing method thereof

Tea tree oil has ultra-strong broad-spectrum antibacterial performance and the functions of sterilizing, killing mildew, resisting viruses, relieving inflammation, killing pests, repelling pests, killing mites, protecting skin, degreasing, restoring physical ability and the like, rapidly acts, is not easy to generate medicine resistance, is considered as one of the most effective natural antimicrobials discovered so far and is an ideal synthetic antibiotic substitute, thereby being widely applied in the processing of medicines, cosmetics, chemicals for daily use and foods. In order to solve the problems that along with the change of tree seeds, producing areas, climates and picking time, the content of each component of natural tea tree oil has no fixed value, the quality is not easily controlled and the requirements of various downstream product users for different specifications and different applications can not be satisfied, and the prominent contradiction that the supply of an international ...

Active measuring device of end surface of CNC internal grinding machine

The invention discloses an active measuring device of the end surface of a CNC internal grinding machine, comprising a machine tool chuck, a pressing cover, a regulating grinding head, a pneumatic micrometer, a positioning floral disc and a shaft coupler for coupling a head box of a machine tool. The end of the pressing cover with a milling flute is tightly matched with the positioning floral disc which is locked and fixed on an air pipe by a thread through hole on the pressing cover; the end of the pneumatic micrometer with the air pipe is inserted into a main shaft from one end of the machine tool chuck and is fixed on the shaft coupler on the end of the machine tool; three air hole branches on the other end of the air pipe are locked on the rest thread holes of the positioning floral disc and sealed by corresponding positioning bolts internally provided with ventilating holes; the regulating grinding head is positioned near the positioning floral disc; the air flow of the pneumatic micrometer ...

Window-shaped ball grid array package base plate

The invention relates to a window-shaped ball grid array package base plate for packaging a chip of a chip center, wherein the chip is provided with two rows of contact mats. The window-shaped ball grid array package base plate is provided with a rectangle slit, the four corners of the rectangle slit are drawing arc lead angels, the radii of the drawing arc lead angels meet the requirement of a minimum distance or a shorter distance required by a design specification, and the design specification is the minimum distance between the rectangle slit and the two rows of contact mats of the chip, thereby the base plate plane space of the two rows of contact mats of the chip can be enlarged to contain an electrostatic protective device and a capacitor.

Wide-frequency-band double-way-band incongruous medium transmission wire

Packaging structure and method for sphere pin array substrate with contact pad located in chip center

The invention relates to a package structure of a ball pin array substrate with contact pads located in the center of a chip and the method thereof. The method comprises the steps that: a pseudomorphic crystal is stuck on each outer side of the two rows of contact pads, the pseudomorphic crystal is provided with multiple redistributed conductors corresponding to the contact pads, one part of a golden nail wire is connected with one end of the redistributed conductor by the contact pad, and the other part is connected with the golden finger of the ball pin array substrate by the other end of the redistributed conductor. According to the structure and the method, golden nail wire is sectionally connected by the pseudomorphic crystal, thus to avoid wire collapse. The pseudomorphic crystal is provided with a redistributed conductor layer, wire collapse occurred when the over-long golden nail wire is glue-poring packaged after being connected with the golden finger between the contact pads and ...

Method and popularization device for starting mobile phone program download with push broadcast message

The invention discloses a method and a popularization device. The popularization device offers an automatic downloading and erection sequence for the service provider starting the mobile phone process initiatively. By receiving the broadcast information including the download information of the mobile phone process, the invention analyzes the broadcast information to acquire the download information of the mobile phone process, and downloads the mobile phone process according to the download data to complete the procedure.

Bonding pad, manufacturing method and bonding method thereof

The invention relates to a bonding pad, a manufacturing method and a bonding method thereof. The bonding pad comprises a passivation layer and a pad metallic layer which are arranged on a semiconductor substrate, and a support metallic layer is arranged between the pad metallic layer and the passivation layer; and the support metallic layer is simultaneously used for rearrangement of wires, and adiffusion impervious layer is arranged between the pad metallic layer and the support metallic layer. Compared with the prior art, by introducing the support metallic layer between the passivation layer and the pad metallic layer, the invention overcomes the problem of failed wire bonding or lowered wire bonding quality caused by the softer passivation layer in the bonding pad in the prior art and avoids the problem of the increased cost resulted from that the material of the pad metallic layer is replaced by expensive metals.

Active measuring device of end surface of CNC internal grinding machine

The invention discloses an active measuring device of the end surface of a CNC internal grinding machine, comprising a machine tool chuck, a pressing cover, a regulating grinding head, a pneumatic micrometer, a positioning floral disc and a shaft coupler for coupling a head box of a machine tool. The end of the pressing cover with a milling flute is tightly matched with the positioning floral disc which is locked and fixed on an air pipe by a thread through hole on the pressing cover; the end of the pneumatic micrometer with the air pipe is inserted into a main shaft from one end of the machine tool chuck and is fixed on the shaft coupler on the end of the machine tool; three air hole branches on the other end of the air pipe are locked on the rest thread holes of the positioning floral disc and sealed by corresponding positioning bolts internally provided with ventilating holes; the regulating grinding head is positioned near the positioning floral disc; the air flow of the pneumaticmicrometer ...