Single-atom Pd clusters anchored on t-BaTiO3 material was synthesized using hydrothermal and ultrasonic methods for the effective piezoelectric catalytic degradation of pollutants using vibration energy. XRD patterns of BaTiO3 loaded with monoatomic Pd were obtained before and after calcining, and showed typical cubic-phase BTO. TEM and HAADF-STEM images indicated single-atom Pd clusters were successfully introduced into the BaTiO3. The piezoelectric current density of the prepared Pd-BaTiO3 binary composite was significantly higher than that of the pristine BaTiO3. Under mechanical vibration, the nanomaterial exhibited a tetracycline decomposition rate of ~95 % within 7 h, which is much higher than the degradation rate of 56.7 % observed with pure BaTiO3. Many of the piezo-induced electrons escaped to the Pd-doped BaTiO3 interface because of Pd’s excellent conductivity. Single-atom Pd clusters help promote the separation of the piezo-induced electrons, thereby achieving synergistic catalysis. This work demonstrates the feasibility of combining ultrasonic technology with the piezoelectric effect and provides a promising strategy for the development of ultrasonic and piezoelectric materials.

Artificial intelligence generated content (AIGC) refers to content produced by artificial intelligence that represents the perspectives of its users, and a new technique of content Generation. Continuous development in deep learning and algorithms have facilitated the adoption of AIGC. This research summarizes literature published under the topic of AIGC using bibliometric analysis method, aims to provide insightful research directions for future studies. 342 documents were collected from Database of Web of science, network visualization analysis among authors and citation analysis over publications are presented to scholars who wish to further research into this area.

The carbon spheres (CSs) synthesized by an ultrasonic-spray pyrolysis method were activated for supercapacitor electrode. There are plenty of cracks on the surface of the activated carbon spheres (ACSs), which expend with increasing the activation temperature and activator dosage. The specific capacitance of ACSs increases with the activation temperature and activator dosage and reach to maximal value at certain conditions. Importantly, the ACS sample activated at relatively low activation temperature (600 °C) and 7 of mass ratio of KOH to CSs has the highest specific capacitance (about 209 F g− 1 at 50 mA g− 1 of current density) and indicates the excellent cycling stability after 1000 consecutive charge–discharge cycles. Furthermore, the graphene sheets could be found in the samples that were activated at 1000 °C. And the electrode prepared by the sample has the very low series resistance because of the excellent conductivity of the formed graphene sheets.

파키스탄과 중국은 전통적 우의와 '전천후 전략 협력 동반자 관계'를 유지하고 있는 나라로 양국은 '일대일로'를 배경으로 한 각종 협력과 교류가 세계 각국의 광범위한 관심을 받고 있다. 특히 2018년 정의운동당 (PTI)이 파키스탄의 제일 큰 당이 되었으며, 뚜렷한 포퓰리즘의 색깔을 가진 임란 칸이 파키스탄 총리로 당선된 후 파키스탄의 내정 외교를 이끌어 중-파 양국의 외교관계와 경제무역협조에 어떤 영향을 줄 것인지 주목된다. 본문은 문헌 연구의 방식을 채택하여 임란 칸이 파키스탄의 총리 당선한 후에 파기스탄의 포퓰리즘의 발전 변화를 분석하고, 임란 칸 정부의 민주주의적 특징을 중점적으로 연구했다.

Politics and culture are always culture serving politics. Any cultural product divorced from politics has no possibility of vitality and survival. The overall context of cultural industry in any country is closely related to national policies. At the same time, cultural industry can also bring political and cultural benefits. In the development process of cultural industry, The Chinese nation needs to maintain the inheritance of its own national culture at all times, and at the same time obtain inspiration from the cultural penetration of other countries. From the perspective of film and television development in China and South Korea, this paper will discuss how film and television cultural industry projects in China and South Korea gradually develop under the long-term influence of economy and politics, and gradually enter the industrialization development of diversification to economic democratization.

Politics and culture are always culture serving politics. Any cultural product divorced from politics has no possibility of vitality and survival. The overall context of cultural industry in any country is closely related to national policies. At the same time, cultural industry can also bring political and cultural benefits. In the development process of cultural industry, The Chinese nation needs to maintain the inheritance of its own national culture at all times, and at the same time obtain inspiration from the cultural penetration of other countries. From the perspective of film and television development in China and South Korea, this paper will discuss how film and television cultural industry projects in China and South Korea gradually develop under the long-term influence of economy and politics, and gradually enter the industrialization development of diversification to economic democratization.

In this letter, the effect of quality factor on center frequency deviation in miniaturized coupled line bandpass filter (BPF) with diagonally end-shorted at their opposite sides and lumped capacitors is theoretically analyzed. The miniaturized BPF of a two-stage structure with two types of quality factors in standard CMOS process was designed and manufactured at 5.5 GHz. The die area of BPF was 1.44×0.41 mm2. The measured center frequency of BPF with a quality factor of 4.9 was deviated from 5.5 GHz to 4.7 GHz. The one with 14.8 was shifted to 5GHz. The theoretical and measured results validate that quality factor influences the center frequency shift of BPF.