Abstract: An electrically-driven vibratory hammer is provided, which has a power supply, is wirelessly controlled, can increase the vibration amplitude and can detect the data of the vibratory hammer in real time. Through the arrangement of storage batteries, workers can also directly work through the built-in storage batteries during construction in some remote areas, without laying additional lines, and the cost is reduced. Furthermore, a movable toothed plate previously driven by a hydraulic cylinder is changed into a clamping electric cylinder capable of directly working through the storage batteries, so that a pile body can be directly clamped without an external hydraulic pump station during working. Through the improvement, the workers can directly work without additionally laying basic equipment during construction in construction sites with incomplete facilities, the construction period is shortened, the construction cost is saved, intelligent control is achieved.

Abstract: An electrically-driven vibratory hammer is provided, which has a power supply, is wirelessly controlled, can increase the vibration amplitude and can detect the data of the vibratory hammer in real time. Through the arrangement of storage batteries, workers can also directly work through the built-in storage batteries during construction in some remote areas, without laying additional lines, and the cost is reduced. Furthermore, a movable toothed plate previously driven by a hydraulic cylinder is changed into a clamping electric cylinder capable of directly working through the storage batteries, so that a pile body can be directly clamped without an external hydraulic pump station during working. Through the improvement, the workers can directly work without additionally laying basic equipment during construction in construction sites with incomplete facilities, the construction period is shortened, the construction cost is saved, intelligent control is achieved.

Abstract: A preparation method of a fiber is provided. In the preparation method of the fiber, a polymer is dissolved in a mixing solution of an ionic liquid and a salt to form a spinning viscose, wherein the salt includes KCl, KBr, KOAc, NaBr, ZnCl2 or a combination thereof. Afterwards, the spinning viscose is used as a material to perform a spinning process so as to form a fiber.

Abstract: A preparation method of a fiber is provided. In the preparation method of the fiber, a polymer is dissolved in a mixing solution of an ionic liquid and a salt to form a spinning viscose, wherein the salt includes KCl, KBr, KOAc, NaBr, ZnCl2 or a combination thereof. Afterwards, the spinning viscose is used as a material to perform a spinning process so as to form a fiber.

Abstract: A preparation method of a polysaccharide fiber is provided. The method includes the following steps. First, a polysaccharide material is provided. Next, the polysaccharide material is mixed with an ionic liquid to form a polysaccharide solution. Then, the polysaccharide solution is mixed with a forming liquid to form a formed polysaccharide article. Next, a homogenization treatment is performed on the formed polysaccharide article to form a homogeneous polysaccharide article. Then, the homogeneous polysaccharide article is dried to form a polysaccharide fiber.

Abstract: An ionic liquid, comprising a compound of Formula 1: wherein Ra is a hydrocarbon chain having 2 to 10 carbon atoms and a terminal hydroxyl group and the hydrocarbon chain comprising —O— therein, —CO— therein or comprising both —O— and —CO— therein, Rb is —CxHySO3H, —CxHyPO3H, —CxHyCOOH, —CxHySO3?, —CxHyPO3? or —CxHyCOO?, and x ranges from 1 to 6 and y ranges from 2 to 12.