Abstract: A full-hydraulic automatic diaphragm wall cutting-grooving machine includes a supporting frame, a cutting device, a cutting driving device and a verticality detection device. The verticality detection device is used to detect the verticality and flatness of the diaphragm wall during the cutting process, the cutting device is used to drive the supporting frame and an equipment arranged on the supporting frame to move and cut, the cutting driving device is used to drive and adjust the cutting device in different directions. The verticality detection device is used to realize the automatic measurement of the verticality of the wall and the bottom surface and the flatness of the wall during the cutting process.

Abstract: The present disclosure provides a formulated pectin composition for lowering food glycemic index (GI) value. The formulated pectin composition comprises low-ester pectin and metal salt of bivalent/trivalent cation, with or without soluble polysaccharides. The formulated pectin composition may comprise the components: pectin and metal salt of bivalent or trivalent cation, in the following weight percentages: the pectin 94.3-97.1% and the metal salt of bivalent or trivalent cation 2.9-5.7%.

Abstract: A preparation method for EV-grade lithium sulfide includes: mixing and reacting sulfur powder, metallic lithium and a lithium-containing additive to obtain a crude lithium sulfide product, and then pulverizing and calcining the crude lithium sulfide product to remove excess sulfur powder to obtain the EV-grade lithium sulfide. The method being used for preparing the lithium sulfide is advantaged in simple process, strong operability, large-scale production, and being capable to meet the requirements for safe operation and EV-grade lithium sulfide, without toxic gas generation and secondary pollution.

Abstract: EV-grade high-purity lithium sulfide and a preparation method therefor, including: A. mixing and well grinding a lithium source and a sulfur source to obtain a mixture; B. primary reaction: mixing the mixture with hydrazine hydrate in an inert atmosphere and reacting to obtain an intermediate slurry; C. secondary reaction: performing secondary reaction on the intermediate slurry in the inert atmosphere and drying to obtain a crude lithium sulfide product; and D. calcining and ball milling the crude lithium sulfide product to obtain the EV-grade high-purity lithium sulfide. The purity of the EV-grade high-purity lithium sulfide prepared by the method is above 99.9%, the whiteness thereof is above 80, and D50?15 ?m; the method is characterized by simple process operation, high safety, low energy consumption, low equipment requirements and low production cost; therefore, the method is suitable for industrial production.

Abstract: A preparation method for EV-grade lithium sulfide includes: mixing and reacting sulfur powder, metallic lithium and a lithium-containing additive to obtain a crude lithium sulfide product, and then pulverizing and calcining the crude lithium sulfide product to remove excess sulfur powder to obtain the EV-grade lithium sulfide. The method being used for preparing the lithium sulfide is advantaged in simple process, strong operability, large-scale production, and being capable to meet the requirements for safe operation and EV-grade lithium sulfide, without toxic gas generation and secondary pollution.

Abstract: A graphics processing unit (GPU) tray includes a base, a first riser, and a second riser. The base is provided with a first bracket and a second bracket spaced from each other, the first riser is connected to one side of the first bracket and the second bracket, and the second riser is connected to the other side of the first bracket and a second bracket. The first riser is provided with a first connector socket facing the second riser, and the second riser is provided with a second connector socket facing the first riser. A first GPU is plugged to the first connector socket and a second GPU is plugged to the second connector socket. The GPU tray compress the installation space of the GPUs and allows four GPUs can be installed in the chassis. A chassis accommodating the GPU tray is also disclosed.

Abstract: The present disclosure provides a formulated pectin for reducing food GI, comprising low-ester pectin and metal salt of bivalent/trivalent cation, with or without soluble polysaccharides. The components of the formulated pectin, according to the present disclosure, are synergistic with each other and can be added to a carbohydrate-based medium and high GI food to achieve the effect of lowering the GI value of the food through a unique physical reaction in the gastrointestinal tract, thereby obtaining a corresponding low GI food. In preparing the low GI food containing said formulated pectin of the present disclosure, only a small amount of said formulated pectin is required to be added to the raw material, and then customarily cooked or baked, allowing little effect on the processing, and almost no impact on the food taste and status. The food can be effective over a wide range of cooking temperatures.

Abstract: Assemblies and methods of use are described herein, including a telecommunication tray assembly, comprising a base structure, a faceplate assembly, and first and second ports. The base structure has front and rear ends and a length. The faceplate assembly is attached to the base structure and defines a first opening configured to receive a first type of optical module and a second opening configured to receive a second type of optical module. The first port is supported by the base structure, aligned with the first opening, and configured to receive the first type of optical module, and has a first leading edge offset from the front end by a first distance. The second port is supported by the base structure, aligned with the second opening, and configured to receive the second type of optical module and has a second leading edge offset from the front end by a second distance.

Abstract: Provided is a biochar-anaerobic membrane biological treatment system and process. The system mainly includes a reaction tank, a membrane module, a macroporous gas distribution device, low-temperature pyrolysis biochar. The application of the process to sewage treatment shows that: under the conditions that the hydraulic retention time is 3.2-7.2 h, the membrane flux is 12.0-17.8 L/m2/h, and the sludge concentration of 7.2-15.6 g/L, multiple objectives of promoting organic micropollutants (OMPs) biotransformation, accelerating methane production and strengthening membrane fouling control were achieved. The system improved OMPs removal efficiency by more than 20%, decreased membrane fouling rate by 50%, and reaching an organic matter removal efficiency of more than 86% at low temperature. The system and process solve the problems of poor OMPs removal efficiency, serious membrane fouling, and low methane yield at low temperature in the anaerobic membrane biological treatment system.

Abstract: This invention relates to an efficient and enantioselective synthesis of the spiro-compounds of formula (1) as common intermediate, featuring an asymmetric introduction of the all-carbon quaternary centre in high selectivity and a very efficient one-pot procedure for the C2 elongation to generate the spiro-structure. For the all-carbon quaternary centre, a Tsuji-Trost asymmetric allylic alkylation (AAA) process was designed to develop a sustainable procedure with very low catalyst loading, thereby also facilitating the Pd content control in the product, under practically solvent free conditions. Furthermore, multiple synthetic transformations in a one-pot procedure were implemented by using a one-pot procedure either in form of a three-transformation sequence comprising Hydroboration-Alkylation-Dieckmann Condensation to compound of formula (1) or in form of a five-transformation sequence comprising Hydroboration-Alkylation-Dieckmann Condensation-Hydrolysis-Decarboxylation to compound of formula (9).

Abstract: A graphics processing unit (GPU) tray includes a base, a first riser, and a second riser. The base is provided with a first bracket and a second bracket spaced from each other, the first riser is connected to one side of the first bracket and the second bracket, and the second riser is connected to the other side of the first bracket and a second bracket. The first riser is provided with a first connector socket facing the second riser, and the second riser is provided with a second connector socket facing the first riser. A first GPU is plugged to the first connector socket and a second GPU is plugged to the second connector socket. The GPU tray compress the installation space of the GPUs and allows four GPUs can be installed in the chassis. A chassis accommodating the GPU tray is also disclosed.

Abstract: The present disclosure provides a formulated pectin for reducing food GI, comprising low-ester pectin and metal salt of bivalent/trivalent cation, with or without soluble polysaccharides. The components of the formulated pectin, according to the present disclosure, are synergistic with each other and can be added to a carbohydrate-based medium and high GI food to achieve the effect of lowering the GI value of the food through a unique physical reaction in the gastrointestinal tract, thereby obtaining a corresponding low GI food. In preparing the low GI food containing said formulated pectin of the present disclosure, only a small amount of said formulated pectin is required to be added to the raw material, and then customarily cooked or baked, allowing little effect on the processing, and almost no impact on the food taste and status. The food can be effective over a wide range of cooking temperatures.

Abstract: Apersonalized exercise guidance system and method based on machine learning are provided. The personalized exercise guidance system includes: a server, a doctor client, and a patient client. The patient client is configured to obtain basic data, evaluation data, and exercise behavior data of a patient, and send the basic data, the evaluation data, and the exercise behavior data to the server. The doctor client is configured to determine an exercise prescription according to the basic data and medical record data of the patient, and upload the exercise prescription and the medical record data to the server. The server is configured to determine an exercise effect according the evaluation data and the exercise behavior data of the patient.

Abstract: The present disclosure relates to a method and system for generating an exercise prescription based on multi-label screening and difficulty classification. The method includes: obtaining movement data from a database; classifying the movement data according to different effects of different exercises on an cardiopulmonary function; obtaining results of an exercise test of a patient; determining an exercise intensity of the patient according to the results of the exercise test; matching the exercise intensity with the classified movement data to obtain a movement data level corresponding to the exercise intensity; and generating a corresponding exercise prescription according to the movement data level. The method can automatically generate the corresponding exercise prescription according to different conditions of patients.

Abstract: A space-saving locking device for a server cabinet which does not present sharp edges to a user during handling locks a first housing to a second housing and includes first and second locking members. The first locking member includes a clamping portion with one end defining a latching slot, the second locking member includes a locking portion matching the latching slot. When the first locking member is operated, the locking portion is latched to the latching slot, and the first locking member is locked to the second member. When the latching slot is detached from the latching portion in a predetermined direction, the first locking member and the second locking member are unlocked.

Abstract: A frame structure includes a first frame, a rail, a handle, a buckle, a second frame, and buffer members. The first frame includes a bottom plate and side plates. The bottom plate and the side plates define an accommodation space. The rail is located on each of the side plates. One end of the handle is movably disposed on the rails. The buckle is located on the first frame and detachably fastened with the handle. The second frame is movably received in the accommodation space. One end of each buffer member is fixed to a bottom surface of the second frame, and another end resists the bottom plate. The handle is coupled to the second frame. When the handle is separated from the buckle, the handle is pushed or pulled to remove the second frame from the accommodation space or press the second frame into the accommodation space.

Abstract: A space-saving locking structure without sharp edges for a server cabinet can lock a first housing to a second housing and includes first and second locking members. The first locking member includes a locking portion with a tail portion, the second locking member includes a blocking portion. The blocking portion has a rounded surface such that when the first housing is pressed along a first direction, the first housing approaches and closes with the second housing, the tail portion being set against a top of the blocking portion. When the first housing is further pushed in a second direction, the tail portion slides along the rounded surface of the blocking portion until the tail portion abuts against the blocking portion to lock the first housing to the second housing.

Abstract: A frame structure includes a first frame, a rail, a handle, a buckle, a second frame, and buffer members. The first frame includes a bottom plate and side plates. The bottom plate and the side plates define an accommodation space. The rail is located on each of the side plates. One end of the handle is movably disposed on the rails. The buckle is located on the first frame and detachably fastened with the handle. The second frame is movably received in the accommodation space. One end of each buffer member is fixed to a bottom surface of the second frame, and another end resists the bottom plate. The handle is coupled to the second frame. When the handle is separated from the buckle, the handle is pushed or pulled to remove the second frame from the accommodation space or press the second frame into the accommodation space.

Abstract: A space-saving locking device for a server cabinet which does not present sharp edges to a user during handling locks a first housing to a second housing and includes first and second locking members. The first locking member includes a clamping portion with one end defining a latching slot, the second locking member includes a locking portion matching the latching slot. When the first locking member is operated, the locking portion is latched to the latching slot, and the first locking member is locked to the second member. When the latching slot is detached from the latching portion in a predetermined direction, the first locking member and the second locking member are unlocked.

Abstract: A space-saving locking structure without sharp edges for a server cabinet can lock a first housing to a second housing and includes first and second locking members. The first locking member includes a locking portion with a tail portion, the second locking member includes a blocking portion. The blocking portion has a rounded surface such that when the first housing is pressed along a first direction, the first housing approaches and closes with the second housing, the tail portion being set against a top of the blocking portion. When the first housing is further pushed in a second direction, the tail portion slides along the rounded surface of the blocking portion until the tail portion abuts against the blocking portion to lock the first housing to the second housing.