Judul: Karakterisasi Sifat Fisiko-Kimia dan Sensori Beras Pandan Wangi, Morneng, dan BTN
Abstrak: Beras Morneng dan beras BTN merupakan beras lokal Cianjur yang sering digunakan untuk mengoplos beras Pandan Wangi karena memiliki kemiripan dari segi bentuk fisiknya. Tujuan dari penelitian ini adlah mengatahui apakah ada perbedaan nyata antara karakteristik sifat fisiko-kimia dan sensori beras Pandan Wangi dengan beras Morneng maupun BTN. Penelitian ini terdiri atas beberapa bagian yaitu analisis fisiko-kimia dan analisis sensori deskriptif. Analisis fisik yang dilakukan terdiri dari pengukuran dimensi fisik, bentuk granula, densitas kamba, penyerapan dan pengembangan volume nasi dan analisis amilograf. Analisis kimia yang dilakukan terdiri dari analisis proksimat (kadar air, abu, protein, lemak dan karbohidrat) dan analisis kadar amilosa. Analisis sensori deskriptif dilakukan dengan menggunakan metode Quantitative Descriptive Analysis (QDA). Panelis terlatih yang digunakan berjumlah 10 orang. Pengolahan data QDA dilakukan menggunakan uji t.
Keyword: 

Judul: Pengembangan Metode Penentuan Kemurnian Beras Varietas Pandan Wangi Berdasarkan Karakteristik Fisik
Abstrak: Beras Pandan Wangi Cianjur merupakan salah satu unggulan utama hasil pertanian di daerah Cianjur. Karena rasa nasinya yang enak, wangi serta produksinya yang terbatas, para pedagang biasanya mengoplos/mencampur beras Pandan Wangi dengan jenis lain yang memiliki karakteristik fisik mirip beras Pandan Wangi. Penelitian ini bertujuan untuk mendapatkan metode yang cepat dalam menentukan kemurnian beras berdasarkan karakteristik fisik khususnya beras varietas Pandan Wangi. Pada penelitian ini dilakukan tiga tahapan yaitu persiapan sampel yang terdiri dari standarisasi kadar air 14 %, derajat sosoh 95 %, dan beras kepala utuh; pengembangan metode dari kelima parameter yang terdiri dari bobot per volume, bobot seribu butir, ukuran panjang butir, bentuk butir, dan chalkiness; aplikasi pengembangan metode dari kelima parameter tersebut. Dari kelima parameter yang dianalisis berdasarkan karakteristik fisiknya, diperoleh metode yang paling mudah dan cepat dilakukan untuk mengetahui asli atau tidaknya beras Pandan Wangi yang ada di pasaran yaitu dengan melihat bentuk dan ulcurannya serta tipe chalkiness yang terdapat pada beras Pandan Wangi. Beras Pandan Wangi memiliki bentuk butir yang agak bulat (p/l ~ 2.0 nun) berdasarkan rasio panjang per lebar dari butir beras dan ukuran butimya tergolong medium ((5.5 -5.99) mm) serta memiliki chalkiness berupa hintik/garis putih pada bagian perut yang biasa disebut white belly.
Keyword: 

Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice