closure clasp system suitable for chains, bracelets, necklaces, and key chains, jewellery and costume jewellery.

• 1. 一种首饰用的锁扣及采用该锁扣的手链和项链 [P] . 中国专利： CN101862059B . 2012.07.04
• 2. 一种首饰用的锁扣及采用该锁扣的手链和项链 [P] . 中国专利： CN201758913U . 2011.03.16
• 3. Spring-clip closure system suitable for use in chains, bracelets, necklaces, chains, key-rings, and in fine and costume jewellery [P] . IT1245328B . 1994-09-19

  机译： 弹簧夹闭合系统适用于链条，手链，项链，链条，钥匙圈以及高级珠宝和古装珠宝

• 4. system closure suitable for chains, bracelets necklaces chain clasp keychain in jewelry and costume jewelry [P] . IT9084987D0 . 1990-08-23

  机译： 系统封闭，适用于珠宝和服饰珠宝中的链条，手链，项链，链扣，钥匙扣

• 5. clasp for chains, bracelets and other articles of jewellery. [P] . 瑞士专利： CH99098A . 1923-05-01

  机译： 扣链，手镯和其他珠宝物品的扣子。

• 1. Blockchain Energy:Blockchain in Future Energy Systems [J] . Bernd Teufel, Anton Sentic, Mathias Barmet 电子科技学刊：英文版 . 2019,第004期
• 2. Particle Scattering Factor of Pearl Necklace Chains [C] . Ralf Schweins, Klaus Huber, Macromolecular Symposia 211 Conference on Dresden Polymer Discussion . 2004
• 3. Chaining For Flexible And High-Performance Key-Value Systems. [D] . Phanishayee, Amar. 2012
• 4. Are Peach Cultivars Used in Conventional Long Food Supply Chains Suitable for the High-Quality Short Markets? [O] . Cosimo Taiti, Corrado Costa, William Antonio Petrucci, 2021
• 5. ABSTRACT Various body parts or organs can be analysed to identify the different diseases in the human body. Fingernail analysis is one of the ways to identify disease in the human body. Nails are the body part which are farthest from the heart and therefore receive oxygen at last. As a result the nails are the first who show the symptoms of a disease in the human body. Fingernails can be easily captured for diagnosis and there are no heavy equipment or no specific conditions required to use nail image for disease diagnosis, like in other tests and scanning processes. Human nails deliver beneficial information about complaints or any nutritive imbalances in the human body depending upon their shape, texture and colour. In human beings, numerous systemic and skin diseases can be easily analyzed through careful examination of nails of both the limbs. A lot of nail illnesses have been found to be primary signs of numerous underlying systemic illnesses. The colour, texture or shape changes in nails are signs of many diseases mainly affecting nails. Considering all these properties of nails a system is proposed that uses digital image processing (DIP) methods for identifying such changes in the human nail to get more precise results and predict numerous diseases effortlessly. With the emerging Internet of Things (IOT) concept the generated report is made available remotely, this will help users to reduce transportation efforts. As the system has to deal with large and private data, the security of data must be ensured. To keep the data confidential, the Blockchain concept which is one of the most emerging concepts in the field of data management is used. The paper contains the implementation of the digital image processing for feature extraction of nail images, usage of IOT (ThingSpeak cloud) for data storage and implementation of Blockchain to keep the system secured and theft free. KEY WORDS: Int ernet of thin gs (IOT), Image proc essin g, Thin gSpeak, RG B vavalues, Mean pi xel vavalues, Bloc kchain , Hash key. Disease Diagnostic System: Abnormalities in Human Nail [O] . Pranav S. Wazarkar 2020
• 6. Chaining for Flexible and High-Performance Key-Value Systems. [R] . Phanishayee, A. 2012

• 1. Blockchain Energy: Blockchain in Future Energy Systems [J] . Bernd Teufel ,Anton Sentic ,Mathias Barmet . 电子科技学刊 . 2019,第004期
• 2. Pit Chains Belonging to Radiating Graben-Fissure Systems on Venus: Model for Formation during Lateral Dyke Injection [J] . Calder W.PATTERSON ,Richard E ERNST ,Claire SAMSON . 地质学报：英文版 . 2016,第S1期
• 3. Robust Stabilization of Nonholonomic Chained Form Systems with Uncertainties [J] . LIANG Zhen-Ying ,WANC Chao-Li . 自动化学报 . 2011,第2期
• 4. Synthesis of Chained Achromatic Layer Systems Forming Controlled Low Transmittance Bands [J] . Mohamed Medhat ,Samy S. Farag . 光学与光子学期刊（英文） . 2011,第3期
• 5. 基于实时定位系统的首饰用蝴蝶链自动成型机器的研制 [C] . LI Jing ,李晶 ,YUAN Xinqiang . 第十三届全国博士生学术年会——智能制造装备专题 . 2015
• 6. 珠宝首饰销售管理信息系统的设计与实现 [A] . 辛景波 . 2013