System Evaluation and Meta Analysis of Total Clinical Effective Rate of Acupuncture and Moxibustion in Treating Depression during 2019-2022

[Objectives]To systematically evaluate the total clinical effective rate of acupuncture treatment of depression,and provide clinical reference for the scheme design and selection of acupuncture treatment of depression.[Methods]By searching CNKI,Wanfang Data,CBM,VIP,Cochrane Library,Cochrane Central,Springer and other databases,randomized controlled experiment(RCT)on acupuncture and moxibustion treatment of depression from January 1,2019 to August 31,2022 was collected,to extract relevant data of total clinical effective rate and conduct methodological quality evaluation.ReviewManager 5.4.1 software was used for Meta analysis.[Results]22 RCTs were included,1602 patients in total.Among them,there were 804 cases in treatment group and 798 cases in control group.Meta analysis results displayed that acupuncture and moxibustion treatment of depression may be better than the control group in improving the total clinical effective rate,and the difference was statistically significant[MD=1.16,95%CI(1.11,1.21)].[Conclusions]Acupuncture and moxibustion can achieve a higher total clinical effective rate in the treatment of depression,which is worthy of clinical application.However,due to fewer studies included in this systematic evaluation,small sample size,and low quality,there was a high possibility of bias.Therefore,the above conclusions needed to be verified by high-quality,large-sample,and multi-center RCTs.

Influencing Factors of Total Factor Energy Efficiency in Bohai Rim Region Based on DEA-Tobit Model

Bohai Rim region is an important economic development area and a large carbon emission area in China.It is of great significance to explore the total factor energy efficiency and its influencing factors for the low carbon transformation and high-quality development of the Bohai Rim region.Based on the total factor energy efficiency framework,the DDF-DEA model was used to calculate the total factor energy efficiency,and the internal and external differences of the total factor energy efficiency were further analyzed.The internal and external influencing factors were determined by ML index method and classical endogenous growth theory,and then the Tobit panel model was used to empirically analyze the action mechanism of all influencing factors of total factor energy efficiency in the Bohai Rim region.The results show that the pure technical efficiency,scale efficiency and technological progress among the internal influencing factors contribute to the improvement of energy efficiency in the Bohai Rim region.Industrial structure,industrial internal structure and ownership structure inhibit the improvement of energy efficiency.Energy consumption structure and energy endowment also have a negative impact on energy efficiency.Therefore,measures such as promoting technological progress,adjusting economic structure and optimizing energy structure will effectively improve total factor energy efficiency in the Bohai Rim region.

Investigation on the Oscillating Buoy Wave Power Device

An oscillating buoy wave power device (OD) is a device extracting wave power by an oscillating buoy. Being excited by waves, the buoy heaves up and down to convert wave energy into electricity by means of a mechanical or hydraulic device. Compared with an Oscillating Water Column (OWC) wave power device, the OD has the same capture width ratio as the OWC does, but much higher secondary conversion efficiency. Moreover, the chamber of the OWC, which is the most expensive and difficult part to be built, is not necessary for the OD, so it is easier to construct an OD. In this paper, a numerical calculation is conducted for an optimal design of the OD firstly, then a model of the device is built and, a model test is carried out in a wave tank. The results show that the total efficiency of the OD is much higher than that of the OWC and that the OD is a promising wave power device.

Monte Carlo Simulation Study of Hot-Particle Detection in Voluminous Samples by Gamma Spectrometry

In this work, we addressed the inhomogeneity problem in gamma spectrometry caused by hot particles, which are dispersed into environment from large nuclear reactor accidents such as at Chernobyl and Fukushima. Using Monte Carlo simulation, we have determined the response of a gamma spectrometer to individual and grouped hot particles randomly distributed in a soil matrix of 1-L and 0.6-L sample containers. By exploring the fact that the peak-to-total ratio of efficiencies in gamma spectrometry is an empirical parameter, we derived and verified a power-law relationship between the peak efficiency and peak-to-total ratio. This enabled creation of a novel calibration model which was demonstrated to reduce the bias range and bias standard deviation, caused by measuring hot particles, by several times, as compared with the homogeneous calibration. The new model is independent of the number, location, and distribution of hot particles in the samples. In this work, we demonstrated successful performance of the model for a single-peak 137Cs radionuclide. An extension to multi-peak radionuclide was also derived.

Bifunctional Shared Fibers for High‑Efficiency Self‑Powered Fiber‑Shaped Photocapacitors

Fiber-shaped photocapacitors(FPCs)based on shared bifunctional fiber electrodes for supercapacitors and solar cells hold great potential for the realization of self-powered systems for flexible wearable electronics.However,the reported electrodes for FPCs still face certain limitations,such as limited specific energy density,low total photochemical–electric energy conver-sion efficiency(ηtotal),and poor flexibility.Herein,hollow fibers consisting of partially reduced graphene oxide and a highly conductive polymer are assembled by wet-spinning and employed as shared bifunctional fibers to fabricate self-powered FPCs.Intriguingly,the FPCs achieve high flexibility and aηtotal of 4.2%.This study illustrates a feasible way to design high-performance FPCs and their applications in flexible electronics.

Performance analyses of a novel finned parabolic trough receiver with inner tube for solar cascade heat collection

Designing highly-efficient parabolic trough receiver(PTR)contributes to promoting solar thermal utilization and alleviating energy crisis and environmental problems.A novel finned PTR with inner tube(FPTR-IT),which can provide different grades of thermal energy with two heat transfer fluids(oil and water),is designed to improve thermal efficiency.In this FPTR-IT,an inner tube and straight fins are employed to respectively lessen heat loss at upper and lower parts of the absorber.Based on the design,a numerical model is developed to investigate its performance.Comparisons with other PTRs indicate that the FPTR-IT can combine the advantages of PTR with inner tube and finned PTR and obtain the best performance.Moreover,performance evaluation under broad ranges of direct normal irradiances(300–1000 W/m^(2)),flow rates(50–250 L/min)and inlet temperatures(400–600 K)of oil as well as flow rates(3.6–10 L/min)and inlet temperatures(298.15–318.15 K)of water is investigated.Compared with conventional PTR,heat loss is reduced by 20.7%–63.2%and total efficiency is improved by 0.03%–4.27%.Furthermore,the proportions of heat gains for water and oil are located in 8.3%–73.9%and-12.0%–64.3%,while their temperature gains are located in 11.6–37.9 K and-1.2–19.6 K,respectively.Thus,the proposed FPTR-IT may have a promising application prospect in remote arid areas or islands to provide different grades of heat for electricity and freshwater production.

Efficient and collective total synthesis of natural products via radical cascade reactions

Subject Code:B02With the support of the National Natural Science Foundation of China,the research team led by Prof.Qin Yong(秦勇)at Sichuan University accomplished a collective synthesis of 33 monoterpenoid indole alkaloids that belong to four families,by developing new photoredox-initiated radical cascade reactions.

A novel and efficient total synthesis of(±)-Cembrene-A

(±)-Cembrene-A,a highly active scent-trail pheromone,was first isolated from thetermite(Nasutitermes exitiosus)and its structure was established by using chemical and spectralmethods,Afterwards,it was also found in some plants and soft corals.In view of itsbiological activity,some total syntheses have been reported.It was reported that its dl-form showed the same order of activity as that of the natural pheromone,In previous work,