A Secure Short Message Communication Protocol

According to the security requirement of the short message service （SMS） industry application, a secure short message communication protocol is proposed. This is an application level protocol constructed on the standard SMS communication protocol using public key authentication and key agreement without the need of wireless public key infrastructure （WPKI）. Secure short message transmission and dynamic key agreement between mobile terminals and the accessing gateway axe realized. The security of the proposed protocol is validated through the BAN logic. Compared with the standard SMS protocol, the effective payload rate of our protocol can reach 91.4%, and subscriber identity module （SIM） tool kit （STK） applications based on our protocol suit well for all kinds of mobile terminals in practical application.

High‑Speed Sirospun Conductive Yarn for Stretchable Embedded Knitted Circuit and Self‑Powered Wearable Device

In the intelligent era,the textile technique is a high efficiency,mature and simple manufacturing solution capable of fabricat-ing fully flexible wearable devices.However,the external circuit with its integration and comfort limitations cannot satisfy the requirements of intelligent wearable and portable devices.This study presents an industrialized production method to fabricate core–shell structure conductive yarn for direct textile use,prepared by the high-speed sirospun technique.Both integration and flexibility are significantly improved over previous works.Combining sirospun conductive yarn(SSCY)and the intarsia technique can provide the SSCY seamless and convenient embedded knitted circuit(SSCY-EKC)to form a full textile electrical element as the channel of power and signals transmission,allowing for a stable resistance change and wide strain range for meeting practical applications.SSCY based on the triboelectric nanogenerator(SSCY-TENG)can be designed as a caution carpet with attractive design and good washability for a self-powered sensor that recognizes human motions.Furthermore,intrinsic textile properties such as washability,softness,and comfort remained.With benefits such as excellent extension,fitting,and stretchability,the SSCY-EKC used herein can realize a fully flexible electrical textile with a high potential for physical detection,body gesture recognition,apparel fashion,and decoration.

Recent developments in selective laser processes for wearable devices

Recently,the increasing interest in wearable technology for personal healthcare and smart virtual/augmented reality applications has led to the development of facile fabrication methods.Lasers have long been used to develop original solutions to such challenging technological problems due to their remote,sterile,rapid,and site-selective processing of materials.In this review,recent developments in relevant laser processes are summarized under two separate categories.First,transformative approaches,such as for laser-induced graphene,are introduced.In addition to design optimization and the alteration of a native substrate,the latest advances under a transformative approach now enable more complex material compositions and multilayer device configurations through the simultaneous transformation of heterogeneous precursors,or the sequential addition of functional layers coupled with other electronic elements.In addition,the more conventional laser techniques,such as ablation,sintering,and synthesis,can still be used to enhance the functionality of an entire system through the expansion of applicable materials and the adoption of new mechanisms.Later,various wearable device components developed through the corresponding laser processes are discussed,with an emphasis on chemical/physical sensors and energy devices.In addition,special attention is given to applications that use multiple laser sources or processes,which lay the foundation for the all-laser fabrication of wearable devices.

CT引导下经皮穿刺置管硬化治疗卵巢巧克力囊肿的临床疗效分析

目的探讨CT引导下经皮穿刺置管硬化治疗卵巢巧克力囊肿的临床疗效与安全性。方法回顾性分析51例卵巢巧克力囊肿患者资料,其中8例经前腹壁穿刺置管,43例经臀部穿刺置管,随后经引流管注入聚桂醇泡沫硬化剂硬化治疗巧克力囊肿,分析治疗前后巧克力囊肿最大径、糖类抗原125(CA125)、抗缪勒管激素(AMH)变化情况及术后并发症情况。结果51例患者的整体有效率为98.0%。患者术后3、6个月的囊肿最大径均较术前显著性缩小(P值均<0.001);CA125水平均较术前显著性降低(P值均<0.001)。患者术后6个月与术前、术后3个月的AMH水平差异均无统计学意义(P=0.421,0.182)。无相关严重手术并发症出现。结论CT引导下经皮穿刺置管硬化治疗卵巢巧克力囊肿安全、有效,可作为较大(直径≥4 cm)卵巢巧克力囊肿的替代治疗方案。

Audit Scheme of University Scientific Research Funds Based on Consortium Blockchain

In the current process of university scientific research funding audits,the auditors do not obtain audit evidence in a timely manner,resulting in a lag in audit time;at the same time,there is the possibility that the audit evidence may be tampered with,and the sensitive expenditure cannot be effectively protected.Based on this,this paper proposes an audit scheme for university scientific research funds based on a consortium chain.The scheme saves relevant audit evidence through blockchain and IPFS,which changes the storage method of traditional audit evidence and effectively ensures the integrity,auditability of audit evidence and verifiability,and facilitates real-time auditing.We use Pedersen Commitment and Zero-Knowledge Range Proof to ensure the auditability of sensitive data;use smart contracts to automate auditing to further ensure that auditors can find relevant audit issues in a timely manner;and separate different departments and construct an audit tree through multi-channel technology to ensure the integrity and reliability of data and improve audit efficiency and accuracy.Finally,functional comparison analysis and security analysis show that the scheme in this paper has certain feasibility and robustness.