摘要：【中文】本发明涉及食品保鲜领域，具体提供了一种基于海藻酸钠的抗菌复合膜及其制备方法。该膜以海藻酸钠为主要原料，向其溶液中加入甘油、芦荟凝胶制成均一稳定的胶状溶液，再通过流延制膜而成。具有无毒可食，抗菌保鲜的特点，绿色可降解，对环境无负担。 【EN】The invention relates to the field of food preservation, and particularly provides an antibacterial composite film based on sodium alginate and a preparation method thereof. The film is prepared by using sodium alginate as main material, adding glycerin and aloe gel into the solution to prepare homogeneous stable colloidal solution, and casting to obtain the film. Has the characteristics of no toxicity, edibility, antibiosis and fresh keeping, is green and degradable, and has no burden to the environment.

摘要：【中文】本发明涉及一种混凝土储热材料及其制备方法，由以下质量份数的组分混合制备而成：铝酸盐水泥8.5‑11.4份，粉煤灰7.0‑7.5份，白云石粗骨料35‑45份，白云石细骨料30‑38份，钢纤维2.0‑4.0份，有机纤维0.1‑0.15份，碳纤维1.0‑3.0份，水6.5‑7.3份，减水剂0.3‑0.7份。该混凝土储热材料制备简单，原材料易得，成本低，储热性能好，和易性佳，强度高的混凝土储热材料及其制备方法。 【EN】The invention relates to a concrete heat storage material and a preparation method thereof, wherein the concrete heat storage material is prepared by mixing the following components in parts by mass: 8.5-11.4 parts of aluminate cement, 7.0-7.5 parts of fly ash, 35-45 parts of dolomite coarse aggregate, 30-38 parts of dolomite fine aggregate, 2.0-4.0 parts of steel fiber, 0.1-0.15 part of organic fiber, 1.0-3.0 parts of carbon fiber, 6.5-7.3 parts of water and 0.3-0.7 part of water reducing agent. The concrete heat storage material is simple to prepare, the raw materials are easy to obtain, the cost is low, the heat storage performance is good, the workability is good, and the strength is high.

摘要：【中文】本专利公开了一种可改善N型欧姆接触的深紫外LED外延片，所述外延片包括：衬底；AlN/AlGaN超晶格应力缓冲层，形成在所述衬底上；N极半导体层，所述N极半导体层包括第一n‑AlGaN层、n‑GaN层以及第二n‑AlGaN层；所述第一n‑AlGaN层、n‑GaN层和第二n‑AlGaN层从所述超晶格应力缓冲层向上依次设置。通过上述结构的N极设计能够有效改善深紫外LED外延片N极的欧姆接触。 【EN】The patent discloses a can improve dark ultraviolet LED epitaxial wafer of N type ohmic contact, the epitaxial wafer includes: a substrate; an AlN/AlGaN superlattice stress buffer layer formed on the substrate; the N-pole semiconductor layer comprises a first N-AlGaN layer, an N-GaN layer and a second N-AlGaN layer; the first n-AlGaN layer, the n-GaN layer and the second n-AlGaN layer are sequentially arranged from the superlattice stress buffer layer to the top. The ohmic contact of the N pole of the deep ultraviolet LED epitaxial wafer can be effectively improved through the N pole design of the structure.

摘要：【中文】本发明公开了一种新型广播电视大功率数字发射机浸没式高效油冷散热装置，包括功率放大单元、油冷机柜、热交换器、水塔散热器和风冷散热器，油冷机柜内盛装有冷却油，功率放大单元设在油冷机柜内并浸没在冷却油里，油冷机柜设有进油口和出油口；出油口分别连接有热交换器和风冷散热器，热交换器连接有水塔散热器，风冷散热器和热交换器分别与进油口连接，热交换器连接有水塔散热器，风冷散热器和热交换器与油冷机柜形成并联回路。功率放大单元直接将热量传递给冷却油，冷却油吸收热量通过热交换器或风冷散热器进行热交换，流入油冷机柜内的冷却油保持在较低范围内，从而使油冷机柜内的功率放大单元的工作温度恒定，达到整体高效散热的效果。 【EN】The invention discloses a novel immersed high-efficiency oil-cooling heat dissipation device for a high-power digital transmitter of a broadcast television, which comprises a power amplification unit, an oil-cooling cabinet, a heat exchanger, a water tower radiator and an air-cooling radiator, wherein cooling oil is contained in the oil-cooling cabinet; the oil outlet is connected with a heat exchanger and an air-cooled radiator respectively, the heat exchanger is connected with a water tower radiator, the air-cooled radiator and the heat exchanger are connected with the oil inlet respectively, the heat exchanger is connected with the water tower radiator, and the air-cooled radiator and the heat exchanger form a parallel loop with the oil-cooled cabinet. The power amplification unit directly transmits heat to cooling oil, the cooling oil absorbs the heat and carries out heat exchange through a heat exchanger or an air-cooled radiator, and the cooling oil flowing into the oil-cooled cabinet is kept in a lower range, so that the working temperature of the power amplification unit in the oil-cooled cabinet is constant, and the effect of overall efficient heat dissipation is achieved.

摘要：【中文】本发明提供了一种弯折性能测试装置，用于半挠性或挠性线路板的弯折性能测试，包括样品平台、翻转机构、控制系统和弯折定位机构，样片平台固定半挠性或挠性线路板的一端，弯折定位机构固定于样品平台，翻转机构枢接于弯折定位机构，翻转机构设有固定半挠性或挠性线路板的另一端的翻转夹具，且翻转机构驱动半挠性或挠性线路板的另一端绕弯折定位机构翻转并弯折，翻转夹具连接弹性件，弹性件可调节翻转夹具对半挠性或挠性线路板的拉力，控制系统控制翻转机构的运行并记录弯折次数。通过对弹性件的调节可使半挠性或挠性线路板与弯折定位机构之间的接触性良好，能保证于翻转过程中半挠性或挠性线路板与弯折定位机构之间的接触，因而其弯折性能的测试结果准确、有效。 【EN】The invention provides a bending performance testing device, which is used for testing the bending performance of a semi-flexible or flexible circuit board and comprises a sample platform, a turnover mechanism, a control system and a bending positioning mechanism, wherein the sample platform is used for fixing one end of the semi-flexible or flexible circuit board, the bending positioning mechanism is fixed on the sample platform, the turnover mechanism is pivoted on the bending positioning mechanism, the turnover mechanism is provided with a turnover clamp for fixing the other end of the semi-flexible or flexible circuit board, the turnover mechanism drives the other end of the semi-flexible or flexible circuit board to turn and bend around the bending positioning mechanism, the turnover clamp is connected with an elastic piece, the elastic piece can adjust the tension of the turnover clamp on the semi-flexible or flexible circuit board, and the control system controls the operation. The semi-flexible or flexible circuit board can be well contacted with the bending positioning mechanism by adjusting the elastic piece, and the contact between the semi-flexible or flexible circuit board and the bending positioning mechanism can be ensured in the overturning process, so that the test result of the bending performance is accurate and effective.

摘要：【中文】本发明公开了一种精确快速柔性多心偏心轴磨削夹具，其包括磨头卡箍、尾架卡箍、定位块、V型铁和锁紧螺钉；磨头卡箍和尾架卡箍均为外侧具有筒底的筒状结构，开口正对且同轴布置，磨头卡箍和尾架卡箍的开口端内壁底部均设置有支撑柱，开口端内壁顶部沿径向开设有螺纹孔，螺纹孔位于支撑柱正上方，定位块布置在支撑柱上，分别支撑在三心偏心轴两端圆柱面的底部，V型铁的内V型槽扣压在三心偏心轴两端圆柱面的顶部，V型铁的外顶部为水平面，锁紧螺钉穿过螺纹孔压紧在V型铁水平面上。本发明可磨削一种偏心轴的不同偏心距尺寸，不用更换机床和增加夹具，无需测量仪器辅助，可快速准确柔性加工零件，生产效率高，操作技能简单。 【EN】The invention discloses an accurate and rapid flexible multi-center eccentric shaft grinding clamp which comprises a grinding head clamp, a tailstock clamp, a positioning block, V-shaped iron and a locking screw, wherein the grinding head clamp is fixed on the tailstock clamp; the grinding head clamp and the tailstock clamp are of a cylindrical structure, the outer side of the cylindrical structure is provided with a cylinder bottom, openings are right aligned and coaxially arranged, supporting columns are arranged at the bottoms of the inner walls of the opening ends of the grinding head clamp and the tailstock clamp, threaded holes are formed in the top of the inner wall of the opening end along the radial direction, the threaded holes are located right above the supporting columns, positioning blocks are arranged on the supporting columns and respectively supported at the bottoms of cylindrical surfaces at two ends of the three-center eccentric shaft, an inner V-shaped groove of the V-shaped iron is buckled and pressed at the tops of the cylindrical surfaces at two ends of the three-center eccentric shaft, the outer top. The eccentric shaft grinding machine can grind different eccentric distance sizes of an eccentric shaft, does not need to replace a machine tool or increase a clamp, does not need to be assisted by a measuring instrument, can quickly, accurately and flexibly machine parts, and has high production efficiency and simple operation skill.

摘要：【中文】本发明提供了一种UiO@Pd@UiO催化剂及其制备方法和用途。本发明的UiO@Pd@UiO催化剂以UiO为载体，以Pd为活性组分；所述催化剂为“三明治”结构，其由内到外依次为具有正八面体结构的UiO晶体、Pd纳米粒子材料和UiO多孔材料。本发明的UiO@Pd@UiO催化剂稳定性好，转化率和选择性高，机械强度好，可用于高效催化苯乙炔选择性加氢制备苯乙烯。 【EN】The invention provides a UiO @ Pd @ UiO catalyst, and a preparation method and application thereof. The UiO @ Pd @ UiO catalyst takes UiO as a carrier and Pd as an active component; the catalyst is of a sandwich structure and sequentially comprises a UiO crystal with a regular octahedral structure, a Pd nanoparticle material and a UiO porous material from inside to outside. The UiO @ Pd @ UiO catalyst provided by the invention has the advantages of good stability, high conversion rate and selectivity and good mechanical strength, and can be used for preparing styrene by high-efficiency catalytic selective hydrogenation of phenylacetylene.

摘要：【中文】本发明公开了一种髋臼骨折牵引装置，在髋臼骨折手术中替代了人力的牵引，使肢体受力稳定，能够保持恒定的拉或推力，不会影响拉钩对切口组织的拉力，保证骨骼与组织的分离空间不变，使手术能够顺利进行。而且该装置操作方便，只通过驱动杆的伸缩，使轴体转动，即可驱动牵引杆摆动，从而实现对患者肢体外展或内收的驱动操作，且驱动杆锁定长度不变即可将轴体锁定，以保证肢体状态的稳定性。 【EN】The invention discloses an acetabulum fracture traction device, which replaces manual traction in an acetabulum fracture operation, so that the stress of limbs is stable, constant pulling or pushing force can be kept, the pulling force of a pulling hook on incision tissues can not be influenced, the separation space of bones and tissues is ensured to be unchanged, and the operation can be smoothly carried out. The device convenient operation moreover, only through the flexible of actuating lever, make the axis body rotate, can drive the traction lever swing to realize the drive operation to patient's limbs abduction or adduction, and actuating lever locking length is unchangeable can be with the axis body locking, in order to guarantee the stability of limbs state.

摘要：【中文】本发明涉及一种硫酸锌溶液连续二段净化除镍钴锗的设备及控制方法。由湿法炼锌工业常用2～5个串联的连续搅拌反应器组成，在现有净化设备的基础上，改变现有连续净化反应器连续加入锌粉及活化剂为间歇式加入；锌粉、含铜、锑的活化剂在1号反应器间歇性加入。对含钴2～100mg/l、镍0～6mg/l、锗0.02～0.3mg/l的一段除铜镉后液，二段净化后液可达到含钴<0.1mg/l、锗<0.02mg/l、含镍<0.1mg/l，除钴锌粉消耗为现有工艺的50～70％。在实现钴的深度净化的同时实现了锗镍的深度净化，对前液含锗、镍、钴的浓度范围大幅度放宽，降低了锌粉消耗。本方法所述的净化设备和锌粉及活化剂的操作方式适用于现有湿法炼锌厂的硫酸锌液净化系统。 【EN】The invention relates to equipment for continuously purifying a zinc sulfate solution by two stages to remove nickel, cobalt and germanium and a control method. The method is characterized by comprising 2-5 serially connected continuous stirring reactors commonly used in the zinc hydrometallurgy industry, and on the basis of the existing purification equipment, the intermittent addition of zinc powder and an activating agent in the existing continuous purification reactor is changed; zinc powder, activating agent containing copper and antimony are intermittently added into the reactor No. 1. For the first-stage copper and cadmium removal liquid containing 2-100 mg/l of cobalt, 0-6 mg/l of nickel and 0.02-0.3 mg/l of germanium, the second-stage purified liquid can reach the cobalt content of less than 0.1mg/l, the germanium content of less than 0.02mg/l and the nickel content of less than 0.1mg/l, and the consumption of the cobalt-removal zinc powder is 50-70% of that of the prior art. The deep purification of the cobalt and the deep purification of the germanium and the nickel are realized, the concentration range of the germanium, the nickel and the cobalt contained in the front liquid is greatly widened, and the consumption of zinc powder is reduced. The purification equipment and the operation mode of the zinc powder and the activating agent are suitable for a zinc sulfate liquid purification system of the existing wet zinc refinery.

摘要：【中文】本发明是关于用于预防毛发脱落或促进毛发生长的组合物，所述组合物包含作为活性成分的靛玉红衍生物、和选自臭檀吴萸提取物、水蓼提取物、北枳椇提取物、香草酸甲酯、橙皮苷和槲皮苷的至少一种。另外，本发明选自臭檀吴萸提取物、水蓼提取物、北枳椇提取物、香草酸甲酯、橙皮苷和槲皮苷的至少一种是天然来源的组合物，对细胞是没有毒性的，靛玉红衍生物是已经发现对人体几乎没有毒性的稳定化合物，因此，当以其混合物使用时的优点在于，与常规类固醇药物不同，它们对人体没有副作用。 【EN】The present invention relates to a composition for preventing hair loss or promoting hair growth, comprising indirubin derivative as an active ingredient and at least one selected from the group consisting of evodia rutaecarpa extract, polygonum hydropiper extract, hovenia dulcis thunb extract, methyl vanillate, hesperidin and quercetin. In addition, at least one selected from the group consisting of evodia rutaecarpa extract, polygonum hydropiper extract, hovenia dulcis thunb extract, methyl vanilate, hesperidin and quercitrin of the present invention is a composition of natural origin, which is not toxic to cells, and indirubin derivatives are stable compounds that have been found to be hardly toxic to the human body, and thus, when used in a mixture thereof, there is an advantage in that they have no side effects on the human body unlike conventional steroid drugs.